JP4890625B2 - Water discharge head with water purification function - Google Patents

Description

The present invention relates to a water discharge head with a water purifying function which is used in a kitchen or kitchen, a bathroom or a bathroom, and which has the ability to purify water and / or hot water discharged during use.

Conventionally, a shower head attached to a wash apparatus or a shower apparatus used in a washroom or a bathroom, etc., and having a water purification capability of water, hot water, or hot / cold mixed water (hereinafter simply referred to as mixed water) includes, for example, There was a clean water shower described in Patent Document 1 (Japanese Patent Laid-Open No. 11-9485).
In this water purification shower, a moisturizing agent filling part and a dechlorinating agent filling part are provided in the gripping part and the chlorine is removed by passing only the dechlorinating agent filling part by a switching device, or the moisturizing agent filling part and the dechlorinating agent filling. It can be made into water containing a moisturizing component while removing chlorine by passing through both of the parts.

〔problem〕
In such a conventional water purification shower, only the dechlorinating agent filling part is passed to remove chlorine, or both the moisturizing agent filling part and the dechlorinating agent filling part are passed to remove chlorine and include a moisturizing component. However, since it is not configured so that raw water can be discharged as it is, the consumption of moisturizer and dechlorinating agent is severe, and if you want to use raw water directly In addition, there is an inconvenience that other faucets must be used, and it has been desired to be able to discharge raw water.

Japanese Patent Laid-Open No. 11-9485

The present invention has been made in view of the above-mentioned problems in the prior art, and the problem specifically set in order to solve this problem is that the flow path between the raw water and the purified water can be easily switched and handled. Another object is to provide a water discharge head with a water purification function that is easy to manufacture and inexpensive.

As configured means so effectively solve the above problems, the present onset bright forms the outlet of the water at the tip of the grip portion of the cylindrical water purification function to accommodate the cartridge water purification in the grip portion A water discharge head provided with a cartridge receiver for inserting and fixing the water purification cartridge on the downstream side in the gripping portion, and a seat in contact with the water purification cartridge in the vicinity of the periphery of the water inlet at the bottom of the gripping portion The cartridge for water purification is made of a water purification material that is permeable to water and is formed in a cylindrical shape having a central space portion, and the outer peripheral surface is between the inner peripheral surface of the gripping portion and the outer periphery. A cartridge body that forms a gap serving as a side flow path, and a connection that covers a downstream end face of the cartridge body and that has a connection port that communicates with the central space. A downstream end connecting member for inserting and fixing the connecting end into the cartridge receiver, and closing an upstream end surface of the cartridge main body, and abutting the seating portion to fix the position of the cartridge main body in the axial direction. And an upstream end closing member that forms a flow path from the water inlet to the outer peripheral flow path, and in the gripping portion, water is supplied to the water purification material from the outer peripheral flow path to the central space. A purified water flow path that is permeated and discharged, and a raw water flow path that is discharged through the outer peripheral side flow path without passing through the water purification material, and the purified water flow path and the original water flow path are formed. it characterized in that a flow path switching valve for selectively opening one of the water flow path.

Further, the present invention is characterized in that the seat portion abuts on the upstream end surface and the outer peripheral surface of the upstream end closing member, and fixes the position of the cartridge body in the axial direction and the radial direction .

Further, the present invention is a water discharge head with a water purification function in which a water discharge port is formed at the tip of a cylindrical gripping part, and the water purification cartridge is accommodated in the gripping part. A cartridge body made of a water purification material that is permeable to water formed in a cylindrical shape having a space portion, and the outer peripheral surface forms a gap that forms an outer peripheral flow path between the inner peripheral surface of the gripping portion, and this A downstream end connecting member that covers a downstream end surface of the cartridge main body and has a connection end in which a connection port communicating with the central space portion is formed; an upstream end closing member that closes an upstream end surface of the cartridge main body; In the gripping portion, water is passed through the water purification material from the outer peripheral flow passage to the central space portion and discharged, and water does not pass through the water purification material. Outer peripheral side flow A flow path for selectively opening one of the water purification flow path and the raw water flow path on the downstream side of the accommodation location of the water purification cartridge. A switching valve is provided, and the channel switching valve has a valve seat formed by drilling a valve seat channel in a plate-like member that bisects the channel in the axial direction, and a rotation that contacts the valve seat in a rotatable manner. The rotary valve body includes a flat plate portion that rotatably contacts the valve seat, and a cartridge that is installed in a cylindrical shape from the flat plate portion and that inserts and fixes the connection end of the water purification cartridge. The flat plate portion has a valve body water purification port communicating with the cartridge receiver and a valve body raw water port communicating with the outer circumferential channel on the same circumference from the center of rotation. , Either of the valve body water purification port and the valve body raw water port by the rotation of the rotation valve body Wherein the match to the valve seat channel.

As described above, according to the present invention, the cartridge receiver for inserting and fixing the water purification cartridge is provided on the downstream side in the gripping portion, and the water purification cartridge is in contact with the periphery of the water inlet at the bottom of the gripping portion. A seating portion is erected, and the water purification cartridge is made of a water purification material that is permeable to water and is formed in a cylindrical shape having a central space portion, and its outer peripheral surface is between the inner peripheral surface of the gripping portion. A cartridge body that forms a gap serving as an outer peripheral flow path, and a connection end that covers a downstream end face of the cartridge body and that has a connection port that communicates with the central space portion. A downstream end connecting member that is inserted into and fixed to the cartridge receiver, and an upstream end surface of the cartridge body are closed, and the cartridge is in contact with the seating portion. The body is fixed in the axial direction, and the water purification cartridge is held at an appropriate position in the grip portion by forming the body from the upstream end closing member that forms the flow path from the water inlet to the outer peripheral flow path. be able to.
Further, in the gripping portion, a purified water flow path in which water passes through the water purification material from the outer circumferential side flow channel to the central space and is discharged, and the outer periphery without water passing through the water purification material. Forming a raw water flow path that is discharged through the side flow path and providing a flow path switching valve that selectively opens one of the purified water flow path and the raw water flow path. Solid substances that cause clogging accumulated at the time of discharge can be washed away at the time of discharging raw water, so that clogging is less likely to occur and the life of the water purification cartridge can be extended.

Further, in the present invention, the seating portion is in contact with the upstream end surface and the outer peripheral surface of the upstream end closing member, and the cartridge main body is fixed in position in the axial direction and the radial direction. The cartridge can be fixed concentrically.

In the present invention, the water purification cartridge is made of a water purification material that is permeable to water and is formed in a cylindrical shape having a central space, and the outer peripheral surface of the cartridge is outer peripheral between the inner peripheral surface of the gripping portion. A cartridge main body forming a gap serving as a side flow path; a downstream end connecting member that covers a downstream end face of the cartridge main body and has a connection end provided with a connection port communicating with the central space; and the cartridge An upstream end closing member that closes the upstream end surface of the main body, and in the gripping portion, water is discharged through the water purification material from the outer peripheral flow path to the central space portion and discharged. And a raw water flow path through which the water passes through the outer peripheral flow path and does not pass through the water purification material and is discharged downstream of the water purification cartridge housing location. Road and raw water A flow path switching valve that selectively opens one of the paths is provided, and the flow path switching valve is a valve seat that is formed by perforating a valve seat flow path in a plate-like member that bisects the flow path in the axial direction. And a rotating valve body that rotatably contacts the valve seat, and the rotating valve body is installed in a cylindrical shape from the flat plate portion and a flat plate portion that rotatably contacts the valve seat. A cartridge receiver that inserts and fixes the connection end of the water purification cartridge, and the flat plate portion includes a valve body water purification port that communicates with the cartridge receiver, and a valve body raw water port that communicates with the outer peripheral side flow path. Are made on the same circumference from the center of rotation, and the rotation of the rotating valve body causes either the valve body water purification port or the valve body raw water port to match the valve seat flow path. As a result, the flow path configuration is simplified, and the flow path can be easily switched with a simple configuration and good operability.

It is a top view which shows the shower head with a water purification function of 1st Embodiment of this invention. It is a right view which shows a shower head with a water purification function same as the above. It is a left view which shows a shower head with a water purification function same as the above. It is side surface sectional drawing (AA arrow line view of FIG. 1) which shows a shower head with a water purification function same as the above at the time of water purification discharge. It is a plane sectional view (BB view figure of Drawing 2) showing the shower head with a water purification function same as the above in the state at the time of clean water discharge. It is a cross-sectional view (CC arrow line view of FIG. 2) shown by the position of the flow-path switching valve in the state at the time of clean water discharge of the shower head with a water purification function same as the above. It is a lower top view which shows the head of the shower head with a water purification function same as the above. It is side surface sectional drawing (DD view of FIG. 7) which shows the head of the shower head with a water purification function same as the above. It is a cross-sectional view (the EE arrow view of FIG. 8) in the flow-path switching valve arrangement | positioning position formed in the head of the shower head with a water purification function same as the above. It is a side view which shows the cylinder part by the side of the hose connection of the holding part in the shower head with a water purification function same as the above. It is a front view which shows the cylinder part by the side of the hose connection of the holding part in the shower head with a water purification function same as the above. It is a back front view which shows the cylinder part by the side of the hose connection of the holding part in the shower head with a water purification function same as the above. It is a longitudinal cross-sectional view (FF arrow line view of FIG. 10) which shows the cylinder part by the side of the hose connection of the holding part in a shower head with a water purification function same as the above. It is a front view which shows the protrusion part of the flow-path switching valve in the shower head with a water purification function same as the above. It is a bottom plan view which shows the protrusion part of the flow-path switching valve in the shower head with a water purification function same as the above. It is a longitudinal cross-sectional view (GG arrow line view of FIG. 14) which shows the protrusion part of the flow-path switching valve in a shower head with a water purification function same as the above. It is a front view which shows the valve seat formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is a longitudinal cross-sectional view (HH arrow line view of FIG. 17) which shows the valve seat formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is a back front view which shows the valve seat formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is a front view which shows the valve body formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is a longitudinal cross-sectional view (II arrow line view of FIG. 20) which passes along the hole by the side of purified water which shows the valve body formation member of the flow-path switching valve in the shower head with a water purification function same as the above. It is a longitudinal cross-sectional view (JJ arrow line view of FIG. 20) which passes along the raw | natural water discharge side hole which shows the valve body formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is a back front view which shows the valve body formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is a top view which shows the partition member in the shower head with a water purification function same as the above. It is side surface sectional drawing (KK arrow line view of FIG. 24) which shows the partition member in the shower head with a water purification function same as the above. It is a lower top view which shows the partition member in the shower head with a water purification function same as the above. It is a top view which shows the assembly passage member in the shower head with a water purification function same as the above. It is side surface sectional drawing (LL arrow line view of FIG. 27) which shows the aggregate passage member in the shower head with a water purification function same as the above. It is a lower top view which shows the aggregate passage member in the shower head with a water purification function same as the above. It is a top view which shows the shower plate in the shower head with a water purification function same as the above. It is a left view which shows the shower plate in the shower head with a water purification function same as the above. It is a longitudinal cross-sectional view (MM arrow line view of FIG. 30) which shows the shower plate in the shower head with a water purification function same as the above. It is a lower top view which shows the shower plate in the shower head with a water purification function same as the above. It is a top view which shows the flow-path formation member for straight discharge in the shower head with a water purification function same as the above. It is a longitudinal cross-sectional view (NN view of FIG. 34) which shows the flow path formation member for straight discharge in the shower head with a water purification function same as the above. It is a lower top view which shows the flow path formation member for straight discharge in the shower head with a water purification function same as the above. It is explanatory drawing which shows the switching lever of the discharge switching valve in a shower head with a water purification function same as the above, (A) is a side view, (B) is a front view, (C) is a rear front view, (D) is a top view, E) is a bottom plan view. It is explanatory drawing which shows the valve body of the discharge switching valve in a shower head with a water purification function same as the above, (A) is a side view, (B) is a front view, (C) is a rear front view, (D) is a top view, E) is a bottom plan view. It is side surface sectional drawing (PP arrow line view of FIG.38 (D)) which shows the valve body of the discharge switching valve in a shower head with a water purification function same as the above. It is a plane sectional view (equivalent view of BB of Drawing 2) which shows a shower head with a water purification function same as the above in the state at the time of raw water discharge. It is side surface sectional drawing (AA equivalent view of FIG. 1) which shows a shower head with a water purification function same as the above at the time of raw | natural water discharge. It is a cross-sectional view (CC equivalent view of FIG. 2) in the position of the flow-path switching valve which shows a shower head with a water purification function same as the above in the state at the time of raw | natural water discharge. It is a plane sectional view (BB equivalent view of Drawing 2) showing the state at the time of clean water discharge in the shower head with a water purification function of a 2nd embodiment of the present invention. It is side surface sectional drawing (AA arrow equivalent view of FIG. 1) which shows the state at the time of the purified water discharge in the shower head with a purified water function same as the above. It is a cross-sectional view (CC equivalent view of FIG. 2) shown by the position of the flow-path switching valve in the shower head with a water purification function same as the above. It is a lower top view which shows the cylinder part by the side of the hose connection of the holding part in the shower head with a water purification function same as the above. It is a front view which shows the cylinder part by the side of the hose connection of the holding part in the shower head with a water purification function same as the above. It is a back front view which shows the cylinder part by the side of the hose connection of the holding part in the shower head with a water purification function same as the above. It is side surface sectional drawing (FF arrow line view of FIG. 46) which shows the cylinder part by the side of the hose connection of the holding part in the shower head with a water purification function same as the above. It is a front view which shows the valve seat formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is side surface sectional drawing (HH arrow line view of FIG. 50) which shows the valve seat formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is a front view which shows the valve body formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is a longitudinal cross-sectional view (II arrow line view of FIG. 52) which passes along the hole at the side of raw | natural water discharge which shows the valve body formation member of the flow-path switching valve in the shower head with a water purification function same as the above. It is a longitudinal cross-sectional view (JJ arrow line view of FIG. 52) which passes along the hole by the side of purified water which shows the valve body formation member of the flow-path switching valve in the shower head with a water purification function same as the above. It is a back front view which shows the valve body formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is a plane sectional view (equivalent view of BB of Drawing 2) which shows a shower head with a water purification function same as the above in the state at the time of raw water discharge. It is side surface sectional drawing (AA equivalent view of FIG. 1) which shows a shower head with a water purification function same as the above at the time of raw | natural water discharge. It is a cross-sectional view (CC equivalent view of FIG. 2) shown by the position of the flow-path switching valve in the state at the time of the raw water discharge of the shower head with a water purification function same as the above. It is a top view which shows the shower head with a water purification function of 3rd Embodiment of this invention. It is a right view which shows a shower head with a water purification function same as the above. It is a left view which shows a shower head with a water purification function same as the above. It is a plane sectional view (BB view figure of Drawing 60) showing the shower head with a water purification function same as the above in the state at the time of clean water discharge. It is side surface sectional drawing (AA arrow line view of FIG. 59) which shows a shower head with a water purification function same as the above at the time of clean water discharge. It is a cross-sectional view (CC arrow line view of FIG. 60) which shows a shower head with a water purification function same as the above at the position of the flow-path switching valve in the state at the time of clean water discharge. It is a lower top view which shows the head of the shower head with a water purification function same as the above. It is side surface sectional drawing (DD view of FIG. 65) which shows the head of the shower head with a water purification function same as the above. It is a top view which shows the holding part by the side of the hose in a shower head with a water purification function same as the above. It is a front view which shows the holding part by the side of the hose in a shower head with a water purification function same as the above. It is a back front view which shows the holding part by the side of the hose in a shower head with a water purification function same as the above. It is side surface sectional drawing (FF arrow line view of FIG. 67) which shows the holding part by the side of a hose in a shower head with a water purification function same as the above. It is a front view which shows the protrusion part of the flow-path switching valve in the shower head with a water purification function same as the above. It is a bottom plan view which shows the protrusion part of the flow-path switching valve in the shower head with a water purification function same as the above. It is side surface sectional drawing (GG arrow line view of FIG. 71) which shows the protrusion part of the flow-path switching valve in a shower head with a water purification function same as the above. It is a front view which shows the valve seat formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is side surface sectional drawing (HH arrow line view of FIG. 74) which shows the valve seat formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is a back front view which shows the valve seat formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is a front view which shows the valve body formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is side surface sectional drawing (II arrow line view of FIG. 77) which passes along the hole by the side of raw water discharge which shows the valve body formation member of the flow-path switching valve in the shower head with a water purification function same as the above. It is side surface sectional drawing (JJ arrow line view of FIG. 77) which passes along the hole by the side of purified water which shows the valve body formation member of the flow-path switching valve in the shower head with a water purification function same as the above. It is a back front view which shows the valve body formation member of the flow-path switching valve in a shower head with a water purification function same as the above. It is a top sectional view showing the shower head with a water purification function same as the above in the state at the time of raw water discharge (BB equivalent view of Drawing 60). It is side surface sectional drawing (AA arrow equivalent view of FIG. 59) which shows a shower head with a water purification function same as the above at the time of raw water discharge. It is a cross-sectional view (CC equivalent view of FIG. 60) shown by the position of the flow-path switching valve in the state at the time of the raw water discharge of the shower head with a water purification function same as the above. It is a plane sectional view (BB equivalent view of Drawing 60) showing the state at the time of clean water discharge in the shower head with a water purifying function of a 4th embodiment of the present invention. It is side surface sectional drawing (AA arrow equivalent view of FIG. 59) which shows the state at the time of the purified water discharge in the shower head with a purified water function same as the above. It is a cross-sectional view (CC equivalent view of FIG. 60) which shows the state at the time of the purified water discharge in the shower head with a purified water function same as the above by the position of a flow-path switching valve. It is a lower top view which shows the head of the shower head with a water purification function same as the above. It is side surface sectional drawing (DD view of FIG. 87) which shows the head of the shower head with a water purification function same as the above. It is a rear front view (E arrow view of FIG. 88) which shows the head of the shower head with a water purification function same as the above. It is a top sectional view showing the shower head with a water purification function same as the above in the state at the time of raw water discharge (BB equivalent view of Drawing 60). It is side surface sectional drawing (AA arrow equivalent view of FIG. 59) which shows a shower head with a water purification function same as the above at the time of raw water discharge. It is a cross-sectional view (CC equivalent view of FIG. 60) shown by the position of the flow-path switching valve in the state at the time of the raw water discharge of the shower head with a water purification function same as the above.

In the following embodiments of the present invention, a case where a flow path switching valve having a switching member along the outer surface of the gripping portion is provided will be specifically described.
This embodiment is specifically described for better understanding of the gist of the invention, and does not limit the content of the invention unless otherwise specified.

[First Embodiment]
〔Constitution〕
The shower head with a water purification function provided with a flow path switching valve having a switching member along the outer surface of the gripping portion used here is usually a shower head that is used by purifying mixed water as needed in a kitchen sink. Form as.
For this reason, as shown in the external view of FIGS. 1-3, the shower head 100 with a water purifying function has the holding part 110 which has an edge part which can be attached to the hose provided in the mixing tap or the mixing tap which is not illustrated, and this A head 120 is provided that can perform shower discharge at the end of the grip 110 opposite to the side of the mixing faucet attached.

The gripping part 110 is divided into a cylindrical part 111 directly connected to the head part 120 side and a cylindrical part 112 on the side of the mixing faucet attached at an intermediate part, and both cylindrical parts 111 and 112 are detachably and integrally combined with this intermediate part. By forming the relay part 113 formed with a screw coupling part that enables the connection, the screw part of the relay part 113 is released, and the cylinder part 111 and the cylinder part 112 are separated, so that the water quality inside the grip part 110 A purification cartridge 130 (see FIGS. 4 and 5) can be accommodated, and a thick-walled cylindrical hose connection 114 is provided at the end on the side of the mixing faucet, and a hose is attached to the tip. A screw 115 is formed to facilitate attachment / detachment with the hose.
Further, a projecting portion 141 that is an operation end of the flow path switching valve 140 (see FIGS. 4 and 5) is protruded from the end of the gripping section 110 near the head, and the flow path switching valve 140 is externally provided to the gripping section 110. To be able to operate.

  The head 120 forms a space (cavity) 120a (see FIGS. 4 and 5) in which the mixed water flowing in from the grip 110 is retained, and the shower plate 121 having a discharge surface for uniformly discharging the mixed water is detachable. The straight discharge port 122 (see FIG. 4) is provided at the center of the shower plate 121, and the shower discharge port 123 (see FIG. 4) is provided so as to surround the periphery of the shower plate 121, thereby switching between straight discharge and shower discharge. A discharge switching valve 150 (see FIG. 4) is provided, and a switching lever 151 serving as an operation portion of the discharge switching valve 150 is disposed so as to protrude from the shower plate 121.

As shown in FIGS. 4 and 5, the shower head 100 with the water purification function that accommodates the water purification cartridge uses the outer peripheral flow path 131 of the water purification cartridge 130 as a part of the raw water flow path. The central space 132 is used as a part of the purified water flow path.
The water purification cartridge 130 in this case includes a water purification material 133 mainly composed of activated carbon formed in a cylindrical shape by providing a long through hole (central space portion 132) concentrically with the central axis in the axial direction, and an outer periphery thereof. An end cap 130a, 130b for concentrically fitting and fixing in the gripping portion is attached to each end of a filter 134 made of non-woven fabric, sponge or net on the surface.

  The cylindrical portion 111 located on the head 120 side of the grip portion 110 is provided with a cylindrical cartridge receiver 116 that projects and fixes the downstream end (head side) end of the water purification cartridge 130 inside. A path switching valve 140 is built in, and a projecting portion 141 which is an operation portion of the channel switching valve 140 is provided so as to be hookable, and the downstream end portion provided in the cartridge 130 for water purification is provided on the cartridge receiver 116. By inserting the insertion end of the cap 130a, the downstream end of the water purification cartridge 130 can be centered and fixed in position, and the relay portion 113 is screwed and the tube portion 112 is assembled to the tube portion 111. An upstream end (hose connection side) end of the water purification cartridge 130 is cored by a rib 112a provided inside an end located upstream of the cylindrical portion 112. And then and fixed position, substantially coaxially accommodate the water purification cartridge 130 into the gripping portion 110.

  The outer peripheral side flow path 116a of the cartridge receiver 116 communicates with the outer peripheral side flow path 131 of the water purification cartridge 130 to become a part of the raw water flow path, and the inner surface side flow path 116b of the cartridge receiver 116 is It communicates with the central space 132 of the water purification cartridge 130 and is used as a part of the water purification flow path.

  When the protrusion 141 of the flow path switching valve 140 is set to the clean water discharge position (see FIG. 6), the flow path communicating with the flow path 116a formed on the outer surface of the cartridge receiving surface of the flow path switching valve 140 is closed. Thus, the mixed water that has flowed into the gripping part 110 passes through the filter 134 and the water purification material 133 from the outer peripheral flow path 131 of the water purification cartridge 130 and purifies the water quality while purifying the central space 132 of the water purification material 133. To the space 120a formed in the head portion 120 through the flow path 116b on the inner surface side of the cartridge receiver 116, and according to the selection of the discharge switching valve 150, the straight discharge port 122 or the shower discharge port from the space 120a. It is discharged to the outside of the shower plate 121 through 123.

  When the protrusion 141 of the flow path switching valve 140 is set to the raw water discharge position (see FIG. 42), the flow path communicating with the flow path 116a formed on the outer surface of the cartridge receiving surface of the flow path switching valve 140 is opened. The mixed water flowing into the gripping portion 110 passes through the outer peripheral flow path 131 of the water purification cartridge 130 and is formed in the head 120 via the outer flow path 116a of the cartridge receiver 116. It flows out to 120 a and is discharged to the outside of the shower plate 121 through the straight discharge port 122 or the shower discharge port 123 according to the selection of the discharge switching valve 150.

On the downstream side of the space 120a formed inside the head 120 and upstream of the portion that houses the discharge switching valve 150, a partition member 125 that partitions the space 120a and the shower discharge surface upstream space 120c is provided. The collective passage member 126 is provided at the center of the disk-shaped partition plate 125a of the partition member 125.
The discharge switching valve 150 provided on the downstream side of the partition member 125 is disposed so that the valve body 150 a can be positioned immediately below the collect passage member 126.
On the further downstream side of the position where the collective passage member 126 and the valve body 150a of the discharge switching valve 150 are arranged vertically, the straight discharge flow path forming member 127 communicating with the straight discharge port 122 formed in the shower plate 121 is provided. Is set up.

  In the discharge switching valve 150, the valve body 150 a is arranged immediately downstream with a slight gap from the collective passage member 126, and the lower surface of the valve body 150 a is an opening 127 a formed at the upper end of the straight discharge flow path forming member 127. It is arranged at the nearest position where it can come into contact with the cover, so that it can be covered from the top as a lid of the straight discharge flow path forming member 127, and the valve body 150a is directly above the opening 127a by the operation of the switching lever 151. Of the switching lever 151 so that the valve body 150a can freely rotate in and out of the upper end of the straight discharge flow path forming member 127 in a range from the position of the valve body 150a to the position where the entire valve body 150a is disengaged from the position of the opening 127a. Set the angle.

As shown in FIGS. 7 to 9, the head portion 120 protrudes the cylindrical portion 111 toward the gripping portion, and a cylindrical inner surface 113 a for fitting with the cylindrical portion 112 and a female screw 113 b are formed at the tip of the protruding cylindrical portion 111. Is formed on the inner surface side so that the female portion of the relay portion 113 can be screw-coupled to the cylindrical portion 112, and a cylinder having a necessary diameter as an inner surface for fitting into which the flow path switching valve 140 is fitted at the back of the female screw 113b. The inner surface 113d is formed, and a hole having a rectangular planar shape with a long side in the circumferential direction penetrating the protrusion 141 serving as the operation end of the flow path switching valve 140 at the central portion in the axial direction of the portion where the cylindrical inner surface 113d is formed. 111a is drilled. The length of the long side of the rectangular hole 111a is defined in accordance with the maximum moving distance of the protruding portion 141 according to the operation angle of the flow path switching valve 140.
On the discharge side, a head outer skin 120b is formed which has a hollow top portion formed with a curved surface and a main portion formed in a substantially cylindrical shape, and no special protruding portion is provided therein. A switching valve or the like can be accommodated.

  As shown in FIGS. 10 to 13, the tube portion 112 on the hose connection side formed so as to be separable from the tube portion 111 integrated with the head portion 120 via the relay portion 113 has a substantially cylindrical shape and has a hose connection. Has an end surface 112b provided with a circular hole at the side end, a thick cylindrical hose connection portion 114 projects from the end surface, a hose attachment screw 115 is formed at the tip, and a hose connection portion 114 is provided. A male side of the relay part 113 is formed at the end located on the opposite side of the end part by forming a male screw 113c and a cylindrical outer surface 113e for fitting into the cylindrical inner surface 113a of the cylindrical part 111 on the outer surface side. .

On the inner surface side of the cylinder portion 112, a plurality of inner end dimensions are formed on the upstream end portion and the end surface 112b in accordance with the end edge portion of the end cap 130b on the hose connection side of the water purification cartridge 130. The ribs 112a,..., 112a protrude and support the end edge of the end cap 130b when the water purification cartridge 130 is accommodated so that the water purification cartridge 130 can be concentrically fixed. The guide and swirl member when mixed water flows from the hose connection side are used.
Further, a protrusion 114a protrudes from the outer peripheral side of the hose connection portion 114, and is used as a positioning rib when fitted and supported in the holder portion of the faucet body.

As shown in FIGS. 4 to 6, the flow path switching valve 140 that switches between the raw water and the purified water includes a projecting portion 141 that serves as an operation member for performing a valve opening / closing operation, and a valve seat forming member 142 that is fixed to the cylindrical portion 111. The valve body forming member 143 is moved by the projecting portion 141.
As shown in FIGS. 14 to 16, the protruding portion 141 has a finger hooking portion 141 a protruding radially outward at the center and curved along the outer periphery of the cylindrical portion 111 to cover the entire operating range during operation. An operation member 141b formed in a curved plate shape that can cover the rectangular hole 111a drilled in the cylindrical portion 111, and a position opposite to the finger-hanging portion projecting side of the operation member 141b (the curved surface And a locking portion 141c for the valve body forming member 143 projecting from the inner central portion.

  As shown in FIGS. 17 to 19, the valve seat forming member 142 includes a disc portion 142 a that forms a partition plate that partitions the water purification cartridge housing portion side of the cylindrical portion 111 and the space forming side of the head portion 120. The outer peripheral edge is formed into a cylindrical shape in which a fitting outer shape that fits into the cylindrical portion 111 is formed on one surface side, and a peripheral protrusion 142b that protrudes in a ring shape, and a valve body forming member 143 is fitted into the other surface side. A formed valve body fitting part 142c, a hole 142e that forms a thick wall part 142d at an intermediate position between the center and the periphery of the disk part 142a, and serves as a channel formed at the center position; An O-ring groove 142f engraved around the position where the hole 142e is formed on the fitting side surface is formed.

As shown in FIGS. 20 to 23, the valve body forming member 143 forms a thick disc portion 143a having a surface that contacts the disc portion 142a of the valve seat forming member 142, and the thick disc portion 143a One surface side is a surface that contacts the disc portion 142a of the valve seat forming member 142, and on the other surface side, a cartridge receiver 116, which is an inner cylinder portion at the center portion, projects concentrically with respect to the center of the disc. A cylindrical outer tube portion 143b is formed concentrically on the peripheral edge of the plate portion 143a to form a double cylinder shape with one end closed.
A thick wall portion 143c is formed on the outer edge of the outer cylindrical portion 143b of the double cylinder so as to have an outer dimension necessary for fitting into the cylindrical portion 111 and to be thick on the outer peripheral side. An O-ring groove 143d is formed on the outer peripheral surface of the thick portion 143c.

  Then, holes 143e and 143f serving as one flow path are formed in the middle position between the center and the periphery of the thick disc portion 143a at positions about 90 degrees apart at the central angle on the same circumference. The hole peripheral portion of the surface of the forming member 142 that does not come into contact with the disk portion 142a is formed around the hole 143e by the wall surface forming a part of the bottomed cylinder having the same thickness as the cartridge receiver 116. By covering the position on the outer peripheral side and similarly covering the inner peripheral side of the cartridge receiver 116 in the hole 143f, flow paths communicating with the holes 143e and 143f for the inner surface side and the outer surface side of the cartridge receiver 116 are formed.

Further, on the outer peripheral side of the outer cylindrical portion 143b, a key shape in which the protruding sides face each other forming an inverted T-shaped groove 143g with the end face facing the thick disc portion arrangement side of the thick portion 143c as the back is formed. The members 143h and 143i are protruded so that the engaging portion 141c on the protruding portion 141 side can be engaged and can be freely moved in and out in the axial direction of the valve body forming member 143.
Further, a stepped portion 143j formed so that an O-ring can be fitted in the outer peripheral edge portion instead of the O-ring groove is provided on the surface of the thick disc portion 143a on the valve seat forming member contact side.
The O-ring (see FIGS. 4 and 5) is made of rubber that can be used in a range from hot water to cold water such as NBR (acrylonitrile butadiene rubber).

  As a result, the locking portion 141c of the protruding portion 141 is engaged between the key-shaped members 143h and 143i of the valve body forming member 143, and the valve body forming member 143 is disposed on the surface of the valve seat forming member 142 on the water purification cartridge housing side. When the surface of the thick disc portion 143a is rotated 90 degrees clockwise or counterclockwise, the hole 142e provided in the valve seat forming member 142 is inserted into the hole 142e. When the holes 143e or 143f of the valve body forming member 143 are aligned on the same central axis, the valve is opened with respect to the flow path of the purified water or the raw water, respectively, so that the purified water or the raw water can pass through.

As shown in FIGS. 24 to 26, the partition member 125 incorporated in the head 120 is formed by projecting short cylindrical annular members 125 b and 125 c on the outer peripheral edge of each surface side of the disk-shaped partition plate 125 a, A fitting hole 125d for fitting the collective passage member 126 (see FIG. 28) for shifting to the entrance to the shower discharge side or the straight discharge side is formed in the center of the partition plate 125a. The annular member 125c on the lower side of the outer periphery is formed with a multi-threaded male screw 125e having two threads on the outer peripheral surface so that the shower plate 121 can be screwed, and an O-ring groove 125f is formed above the screw forming portion. It can be formed to prevent leakage.
The fitting hole 125d is divided into two stages, the upper part is formed with a circular hole having the same diameter with respect to the axial direction of the circle, and the lower part is formed with a hole whose diameter is reduced downward in the axial direction. In the middle of them, a step is provided so that the assembly passage member 126 can be fitted from above.

As shown in FIGS. 27 to 29, the collective passage member 126 is formed by cutting an annular groove 126 b shallowly on the heel side into a cylindrical portion 126 a of a rounded cylinder having a flat end shape with an outer edge by cutting the heel side end face shallowly. A large number of light beams 126c are formed on the outer periphery of the annular groove 126b so that the outer end portion reaches the flange portion 126d. The outer diameter of the cylindrical portion 126a provided with the groove 126b is made smaller than the outer diameter of the flange portion 126d, and the outer lower end portion of the light rod 126c is formed in a shape opened to the side.
The collective passage member 126 has an outer diameter that allows the cylindrical portion 126a and the flange portion 126d to be fitted into the fitting holes 125d of the partition member 125 (see FIG. 25), and is formed on the side surface of the cylindrical portion 126a. Is adjusted in the axial direction so as to reach the position of the hole formed in the fitting hole 125d of the partition member 125 to be reduced in diameter, and the raw water or purified water flowing out from the opening radially outward is reduced in diameter. It is made to flow out so that it may be concentrated below a center part by the hole made.

  As shown in FIGS. 30 to 33, the shower plate 121 as a discharge surface forming member located on the downstream side of the partition member 125 has a flat disk portion 121 a and an overhang portion 121 b formed by raising its outer peripheral edge. And a straight discharge port 122 is formed in the central portion of the disc portion 121a, and the valve shaft 151a (see FIG. 37) of the discharge switching valve 150 is passed through the shaft portion adjacent to the straight discharge port 122 to support the shaft. And a small number of small holes to be shower discharge ports 123 are formed at substantially equal intervals around the straight discharge port 122 on the surface excluding the straight discharge port 122 and the shaft hole 124. .

In this shower plate 121, the protruding portion forming side of the disc portion 121a in which each hole is formed is the inflow side (upstream side) of the mixed water, and the number of strips is two on the inner peripheral surface side of the protruding portion 121b. The multi-thread female screw 121c is formed so that it can be screwed into the multi-thread male thread 125e provided on the partition member 125.
Further, a stepped portion 121d having an enlarged diameter is provided inside the upper end portion of the overhanging portion 121b to form a pressing surface for the O-ring groove, and an O-ring attached to the O-ring groove 125f of the partition member 125 (see FIG. 4). Is pressed from the outside so that leakage can be prevented when screwing with the partition member 125.

Further, a concave portion 121e into which the straight discharge flow path forming member 127 (see FIG. 35) is fitted is provided at the upper portion of the straight discharge port 122, and the straight discharge flow path forming member 127 is erected at the center of the shower plate. Thus, the flow path on the straight discharge side (straight discharge flow path 127b) and the flow path on the shower discharge side (shower discharge surface upstream space 120c) can be partitioned.
Furthermore, on the outer peripheral surface of the overhanging portion 121b, two projecting portions 121f and 121f are provided on the outer peripheral side of the position where the shaft hole 124 is provided so as to sandwich the outer peripheral surface of the shaft hole drilling position. When the valve shaft 151a of the switching valve 150 is pivotally supported through the shaft hole 124 and the switching lever 151 is provided between the two protrusions 121f and 121f, the operating range of the switching lever 151 is reduced to the two protrusions 121f. , 121f can be regulated to a given rotation angle.

As shown in FIGS. 34 to 36, the straight discharge flow path forming member 127 erected at the center of the shower plate is formed in a cylindrical shape having an end portion whose upper end edge is reduced in diameter toward the inner surface side. The inside is used as the straight discharge flow path 127b.
The opening 127a formed at the upper end is formed so that the opening diameter is smaller than the inner diameter of the cylindrical portion, so that the valve body 150a (see FIG. 38) of the discharge switching valve 150 can be easily placed. The outer diameter of the lower end is large enough to fit into the inner diameter of the recess 121e formed in the central part of the shower plate 121, and is in a fitted state so that it can stand upright in the central part of the shower plate 121 after fitting. Is formed to be close.

  As shown in FIG. 4, the discharge switching valve 150 includes a switching lever 151 integrally formed with a valve shaft 151 a that penetrates the disc portion 121 a of the shower plate 121 and is supported so as to be rotatable about the axis. The valve body 150a is divided into a thin dish-like valve body whose upper surface is formed into a shallow concave surface so that it can be disposed in a gap provided between the member 126 and the straight discharge flow path forming member 127.

  As shown in FIG. 37, the switching lever 151 has a lever portion 151b extending in a direction perpendicular to the valve shaft 151a, and is substantially perpendicular to the lever rotation direction at the tip of the lever portion 151b which is an operating piece thereof. Recesses 151d are formed on both sides of the finger-hanging portion 151c that forms a smooth surface to facilitate finger engagement. At the tip of the valve shaft 151a, it is inserted into a fitting hole 150d (see FIG. 38) formed on the valve body side to be coupled to the valve body 150a, and is urged to the expansion side to prevent disconnection after the coupling. The elastic locking portions 151e and 151e having a rectangular cross section are projected.

  As shown in FIGS. 38 and 39, the valve body 150a is formed in a thin dish shape having an upper surface formed in a shallow concave surface, and a dish portion 150b formed in a convex surface curved with a curvature radius in which the lower surface is lengthened by the plate thickness, An arm 150c extending in a radial direction from the dish 150b, and a rectangular cross-section fitting hole into which the valve shaft side elastic locking portions 151e and 151e are inserted and fitted into the distal end of the arm 150c The shaft coupling portion 150e is formed with a hole 150d.

  When the elastic locking portions 151e and 151e on the valve shaft 151a side are inserted into the fitting holes 150d of the shaft coupling portion 150e, the elastic locking portions 151e from the outside (downstream side) to the shaft holes 124 formed in the shower plate 121. 151e, the valve shaft 151a is fitted into the shaft hole 124, and then the elastic locking portions 151e, 151e are inserted into the fitting hole 150d on the valve body 150a side until it can be prevented from being removed. The body 150a and the switching lever 151 are assembled to the shower plate 121, and the movable member of the discharge switching valve 150 is integrally coupled.

[Function and effect]
In 1st Embodiment comprised in this way, it can switch between purified water and raw | natural water by rotating the protrusion part 141 of the flow-path switching valve 140 along the outer peripheral surface of the holding | grip part 110, Moreover, purified water and raw | natural water Independent of the switching, the straight discharge and the shower discharge can be switched by operating the switching lever 151 of the discharge switching valve 150.

  Now, when the set position of the flow path switching valve 140 is closed as shown in FIGS. 4 to 6 and the central space 132 is communicated with the space 120a of the head 120 as shown in FIGS. The mixed water flowing in from the hose connection part 114 side of the grip part 110 purifies the water quality by passing through the water purification material 133 from the outer peripheral side flow path 131 of the water quality purification cartridge 130 and flowing out to the central space part 132, Further, the purified mixed water was drilled from the central space 132 to the channel 116b on the inner surface side of the cartridge receiver 116 provided in the channel switching valve 140, the hole 143e drilled on the valve body side, and the valve seat side. It flows out into the space 120a of the head 120 through the hole 142e, and the straight discharge passage 127b is set from the space 120a through the collective passage member 126 according to the setting of the discharge switching valve 150. Other flows into the shower discharge surface upstream space 120c, straightening the discharge or shower discharge.

Next, when this water purification discharge is performed, the protrusion 141 of the flow path switching valve 140 is rotated by a necessary angle in a predetermined direction along the outer peripheral surface of the gripping section 110, so that the flow path switching valve 140 is changed from FIG. As shown in FIG. 42, the outer peripheral side channel 131 is formed on the outer surface side of the cartridge receiver 116 provided in the channel switching valve 140, the hole 143f formed on the valve body side, and the hole formed on the valve seat side. When the central space portion 132 is closed while the space 120a of the head 120 is communicated with the space 120a via 142e, the mixed water that has flowed in from the hose connection portion 114 side of the grasping portion 110 is discharged from the outer circumferential side channel 131. The space 120a of the head 120 is passed through the flow path 116a on the outer surface side of the cartridge receiver 116 provided in the flow path switching valve 140, the hole 143f drilled on the valve body side, and the hole 142e drilled on the valve seat side. Leaked It flows into the straight discharge passage 127b or shower discharge surface upstream space 120c in accordance with the setting of the discharge switching valve 150 from the space 120a through the collection passage member 126, to the straight discharge or shower discharge.
After that, when the protruding portion 141 of the flow path switching valve 140 is rotated along the outer peripheral surface of the gripping portion 110 by the same angle in the opposite direction to that of the raw water discharge, the flow returns to the case of the clean water discharge as shown in FIGS. It becomes possible to discharge purified water.

Further, the operation of the discharge switching valve 150 can be performed independently of the operation of the flow path switching valve 140, and straight discharge and shower discharge can be arbitrarily set.
First, when the switching lever 151 is operated and rotated to the straight discharge side about the axis of the valve shaft 151a, the valve body 150a is disengaged from the position of the opening 127a of the straight discharge flow path forming member 127, and the collective passage member. The mixed water flowing out from 126 flows into the opening 127a of the straight discharge flow path forming member 127, passes through the inside of the straight discharge flow path 127b, and is discharged from the straight discharge port 122.

When the switching lever 151 is set to the straight discharge side, when the switching lever 151 is operated in the opposite direction and rotated to the shower discharge side about the axis of the valve shaft 151a, FIG. As shown in FIG. 5, the plate portion 150b of the valve body 150a is positioned above the opening 127a of the straight discharge flow path forming member 127 so as to close the opening 127a, and the mixed water flowing out from the collective passage member 126 becomes the plate of the valve body 150a. So as to flow out around the straight discharge flow path forming member 127 and be discharged from the shower discharge port 123 via the shower discharge surface upstream space 120c formed by the partition member 125 and the shower plate 121. Become.
After that, when the switching lever 151 is operated and rotated to the straight discharge side around the axis of the valve shaft 151a, the straight discharge port 122 discharges as described above.

Thereby, by rotating the protrusion 141 of the flow path switching valve 140 around the central axis of the gripping part 110 and along the outer peripheral surface, it is possible to easily switch between purified water discharge and raw water discharge. The mixed water is purified when passing the water purification material 133 from the outer peripheral flow path 131 of the water purification cartridge 130 to the central space 132, and when the raw water is discharged, the water purification cartridge 130 The flow path upstream of the water purification material 133 is washed away by the mixed water passing through the surface side of the filter 134, and the accumulation on the filter surface accumulated during the purification water discharge is washed away. As a result, the water purification performance can be maintained at a high level for a long period of time.
In addition to this, since the discharge switching valve 150 is completely independent of the flow path switching valve 140, it is possible to select either straight discharge or shower discharge regardless of whether raw water or purified water is discharged. It can be discharged and four types of available forms can be selected.

[Second Embodiment]
In the first embodiment, the outer peripheral side of the water purification cartridge is formed as an upstream flow path before purification, but in this second embodiment, the central space portion of the water purification cartridge is used as the upstream flow before purification. The case where it forms as a path | route is demonstrated concretely.
In the following description, the reference numerals of the respective members are identified as numbers in the 200s to identify the first embodiment, and members other than the members related to the configuration of the flow path switching valve are the same as those in the first embodiment. In addition, the same reference numerals are used for the last two digits of the 200 series, and the description is omitted.

〔Constitution〕
The shower head 200 with a water purifying function includes, as shown in the cross-sectional views of FIGS. 43 to 45, a holding portion 210 having an end portion that can be attached to a mixing faucet or a hose provided in the mixing faucet (not shown), And a head portion 220 that can perform shower discharge at the end of the portion 210 opposite to the side of the mixing faucet attachment.

The holding part 210 is divided into a cylindrical part 211 directly connected to the head 220 side and a cylindrical part 212 on the side of the mixing faucet, and a screw coupling part is formed so that these can be detachably and integrally combined. The relay part 213 is formed so as to be separable and connectable.
By releasing the screwing of the relay portion 213 and separating the cylindrical portion 211 and the cylindrical portion 212, the water purification cartridge 230 can be accommodated inside the grip portion 210.
Further, a thick cylindrical hose connection portion 214 is provided at the end on the side of the mixing faucet attachment, and a hose attachment screw 215 is formed at the tip thereof to facilitate attachment / detachment with the hose.
Further, the protruding portion 241 of the flow path switching valve 240 is projected at the upper end of the cylinder portion 211 of the gripping section 210 so that the flow path switching valve 240 can be operated from the outside of the gripping section 210.

  The head 220 forms a space (cavity) 220a in which the mixed water flowing in from the grip portion 210 stays, and detachably forms a shower plate 221 having a discharge surface through which the mixed water is uniformly discharged. A straight discharge port 222 is provided at the center of the 221, a shower discharge port 223 is provided so as to surround the periphery thereof, a discharge switching valve 250 for switching between straight discharge and shower discharge is provided, and an operation portion of the discharge switching valve 250 is provided. The switching lever 251 is arranged so as to protrude from the shower plate 221.

The water purification cartridge 230 includes a water purification material 233 mainly composed of activated carbon formed in a cylindrical shape by providing a long through hole (central space portion 232) concentrically with the central axis in the axial direction, and an inner peripheral surface thereof. It is assumed that a filter 235 made of non-woven fabric, sponge, net, or the like is provided around the filter.
Of the channels formed by housing the water purification cartridge 230 in the grip portion 210, the outer peripheral side channel 231 of the water purification cartridge 230 is a part of the water purification channel, and the central space portion of the water purification cartridge 230 is formed. 232 is used as part of the raw water flow path.

  The cylindrical portion 211 located on the head 220 side of the grip portion 210 is provided with a cylindrical cartridge receiver 216 protruding from the downstream side (head side) end of the water purification cartridge 230. A path switching valve 240 is built in, and the downstream end of the water purification cartridge 230 is centered by inserting the insertion end of the downstream end cap 230a provided in the water purification cartridge 230 into the cartridge receiver 216. Then, the position is fixed, the relay portion 213 is screwed and the tube portion 212 is assembled to the tube portion 211, so that the upstream end (hose connection side) end of the water purification cartridge 230 is located upstream of the tube portion 212. A cartridge for water purification that is centered and fixed in position by a cylindrical cartridge receiver 217 provided inside the positioned end, and is held in the grip 210. Houses 30 substantially coaxially.

The outer peripheral side channel 216a of the cartridge receiver 216 communicates with the outer peripheral side channel 231 of the water purification cartridge 230 to become a part of the purified water channel, and the inner surface side channel 216b of the cartridge receiver 216 includes the water purification cartridge. By communicating with the central space portion 232 of 230, it is used as a part of the raw water flow path.
A flow path (space) 217 a on the outer peripheral side of the cartridge receiver 217 serves as an end portion of the outer flow path 231 of the water purification cartridge 230, and a flow path 217 b on the inner surface side of the cartridge receiver 217 is the center of the water purification cartridge 230. It communicates with the space 232 and is used as a part of the raw water flow path.

  Thereby, in the case of the purified water discharge which adjusted the protrusion part 241 of the flow path switching valve 240 to the purified water discharge position, the flow path communicating with the flow path 216b formed on the inner surface side of the cartridge receiver 216 of the flow path switching valve 240. Is in a closed state, and the mixed water flowing into the grip portion 210 passes through the water purification material 233 of the water quality purification cartridge 230 from the central space portion 232 of the water quality purification cartridge 230 and purifies the water quality. 231 to the space 220a formed in the head 220 through the flow path 216a on the outer periphery of the cartridge receiver 216, and the straight discharge port 222 or the shower discharge from the space 220a according to the selection of the discharge switching valve 250. The liquid is discharged to the outside of the shower plate 221 through the outlet 223.

  Further, in the case of raw water discharge in which the protruding portion 241 of the flow path switching valve 240 is aligned with the raw water discharge position, a flow path communicating with the flow path 216b formed on the inner surface side of the cartridge receiver 216 of the flow path switching valve 240 is provided. A space formed in the head 220 through the flow path 216b on the inner surface side of the cartridge receiver 216 through the central space portion 232 of the water purification cartridge 230 when the mixed water flowing into the grip portion 210 is opened. It flows out to 220 a and is discharged to the outside of the shower plate 221 through the straight discharge port 222 or the shower discharge port 223 according to the selection of the discharge switching valve 250.

A partition member 225 for partitioning the space 220a and the shower discharge surface upstream space 220c is provided on the downstream side of the space 220a formed inside the head 220 and upstream of the portion accommodating the discharge switching valve 250. The collective passage member 226 is provided at the center of the disk-like partition plate 225a of the partition member 225.
The valve body 250 a of the discharge switching valve 250 provided on the downstream side of the partition member 225 is disposed so that the valve body 250 a can be positioned directly below the collect passage member 226.
On the further downstream side of the position where the collective passage member 226 and the valve body 250a of the discharge switching valve 250 are arranged vertically, the straight discharge flow path forming member 227 communicating with the straight discharge port 222 formed in the shower plate 221. Is set up.

  The discharge switching valve 250 is disposed immediately downstream of the partition member 225 with the valve body 250a slightly spaced from the collective passage member 226, and the lower surface of the valve body 250a is disposed on the straight discharge flow path forming member 227. It is arranged at a position closest to the opening 227a formed at the upper end so that it can be covered from the top as a lid of the straight discharge flow path forming member 227, and the valve body is operated by operating the switching lever 251. The valve body 250a can freely rotate in and out of the upper end of the straight discharge flow path forming member 227 in a range from 250a to a position immediately above the opening 227a until the entire valve body 250a is disengaged from the position of the opening 227a. The rotation angle of the switching lever 251 is set.

As in the first embodiment, the head portion 220 projects the cylindrical portion 211 to the gripping portion side, and forms the female side of the relay portion 213 at the tip end portion of the protruding cylindrical portion 211 so as to be detachable from the cylindrical portion 212. The planar shape with the long side in the circumferential direction penetrating the protruding portion 241 serving as the operation end of the flow path switching valve 240 is rectangular at an intermediate position between the relay portion 213 of the cylindrical portion 211 and the space 220a. The length of the long side of the hole 211a is defined in accordance with the maximum moving distance of the protruding portion 241 according to the operation angle of the flow path switching valve 240.
Further, on the discharge side of the head portion 220, the top portion is formed in a curved surface, the main portion is formed in a substantially cylindrical shape, and the head outer skin 220b is a hollow portion in which no special protruding portion is provided. So that the partition plate, the discharge switching valve and the like can be accommodated.

  As shown in FIGS. 46 to 49, the tube portion 212 on the hose connection side formed so as to be separable from the tube portion 211 has a substantially cylindrical shape, and has an end surface 212 b provided with a circular hole at the end portion on the hose connection side. A thick cylindrical hose connection portion 214 coaxially protrudes outward from the end face thereof, a hose attachment screw 215 is formed on the outer peripheral side of the tip portion, and the end portion provided with the hose connection portion 214 is provided. At the end located on the opposite side, a male screw 213c and a cylindrical outer surface 213e for fitting to the cylindrical portion 211 are formed on the outer surface side to form the male side of the relay portion 213.

On the inner surface side of the cylindrical portion 212, inner dimensions are formed on the upstream end portion and the end surface 212b in accordance with the size of the end portion on the small diameter side of the end cap 230b on the hose connection side of the water purification cartridge 230. The cylindrical cartridge receiver 217 protrudes and supports the upstream edge of the end cap 230b when the water purification cartridge 230 is accommodated, so that the water purification cartridge 230 can be concentrically fixed. Like that.
Further, a protruding portion 214a is projected on the outer peripheral side of the hose connecting portion 214, and is used as a positioning rib when fitted and supported in the holder portion or discharge port of the faucet body.

As shown in FIGS. 43 to 45, the flow path switching valve 240 for switching between the raw water and the purified water includes a projecting portion 241 serving as an operation member for performing a valve opening / closing operation, and a valve seat forming member 242 fixed to the cylindrical portion 211. , And a valve body forming member 243 that is moved by the projecting portion 241.
Similar to the first embodiment, the protruding portion 241 has a finger hooking portion 241a projecting radially outward at the central portion, curved along the outer periphery of the cylindrical portion 211, and is cylindrical over the entire operating range during operation. An operation member 241b formed in a curved plate shape that can cover the rectangular hole 211a formed in the portion 211, and a position opposite to the protruding side of the finger hooking portion of the operation member 241b (inside of the curved surface) And a locking portion 241c for the valve body forming member 243 projecting from the central portion.

  As shown in FIGS. 50 and 51, the valve seat forming member 242 includes a disc portion 242 a that forms a partition plate that partitions between the water purification cartridge housing portion side of the cylindrical portion 211 and the space forming side of the head portion 220. The outer peripheral edge is formed in a cylindrical shape in which a fitting outer shape that fits into the cylindrical portion 211 is formed on one surface side and a peripheral protrusion portion 242b that protrudes in a ring shape, and a valve body forming member 243 is fitted in the other surface side. The formed valve body fitting part 242c and the hole 242e used as the flow path drilled in the intermediate position of the center and periphery of the disc part 242a are formed.

As shown in FIGS. 52 to 55, the valve body forming member 243 forms a thick disc portion 243 a having a surface that comes into contact with the disc portion 242 a of the valve seat forming member 242, and the thick disc portion 243 a One surface side is a surface that abuts on the disc portion 242a of the valve seat forming member 242, and a cartridge receiver 216 that is an inner cylinder portion at the center portion protrudes concentrically with respect to the center of the disc on the other surface side. A cylindrical outer cylinder part 243b is formed concentrically on the peripheral edge of the plate part 243a and formed in a double cylindrical shape with one end closed.
A thick portion 243c is formed on the outer peripheral side of the outer cylindrical portion 243b of the double cylinder so that the cylindrical portion 211 has an external dimension necessary for being fitted inside, and the outer peripheral side is thick. An O-ring groove 243d is formed on the outer peripheral surface of the thick portion 243c.

  Then, holes 243e and 243f serving as one flow path are formed in the middle of the thick disc portion 243a at a center angle between the center and the periphery at positions separated from each other by about 90 degrees with a central angle. The hole peripheral portion of the surface of the forming member 242 that does not come into contact with the disk portion 242a is a wall surface that forms a part of the bottomed cylinder having the same thickness as the thickness of the cartridge receiver 216. By covering the position on the outer peripheral side and similarly covering the inner peripheral side of the cartridge receiver 216 in the hole 243f, flow paths communicating with the holes 243e and 243f for the inner surface side and the outer surface side of the cartridge receiver 216 are formed.

Further, on the outer peripheral side of the outer cylindrical portion 243b, a key shape in which the protruding sides face each other forming an inverted T-shaped groove 243g with the end face facing the thick disc portion arrangement side of the thick portion 243c as the back is formed. The members 243h and 243i are protruded so that the engaging portion 241c on the protruding portion 241 side can be engaged and can be freely inserted and removed in the axial direction of the valve body forming member 243.
Further, a stepped portion 243j formed so that an O-ring can be fitted in the outer peripheral edge portion instead of the O-ring groove is provided on the surface of the thick disc portion 243a on the valve seat forming member contact side.

  Thus, the locking portion 241c of the protruding portion 241 is engaged between the key-shaped members 243h and 243i of the valve body forming member 243, and the valve body forming member 243 is placed on the surface of the valve seat forming member 242 on the water purification cartridge housing side. When the surface abutting on the disc portion 242a is brought into close contact and rotated 90 degrees clockwise or counterclockwise about the central axis of the thick disc portion 243a, the hole 242e provided in the valve seat forming member 242 is inserted into the hole 242e. When the holes 243e or 243f of the valve body forming member 243 are aligned on the same central axis, the valve is opened with respect to the flow path of the purified water or the raw water, respectively, so that the purified water or the raw water can pass through.

[Function and effect]
In 2nd Embodiment comprised in this way, it can switch clean water and raw | natural water by rotating the protrusion part 241 of the flow-path switching valve 240 along the outer peripheral surface of the holding | grip part 210, Moreover, purified water and raw | natural water Independent of the switching, the straight discharge and the shower discharge can be switched by operating the switching lever 251 of the discharge switching valve 250.

  Now, when the set position of the flow path switching valve 240 is closed as shown in FIGS. 43 to 45, and the outer peripheral flow path 231 is in communication with the space 220 a of the head 220, The mixed water that has flowed in from the hose connection part 214 side of the grip part 210 passes through the water purification material 233 from the central space part 232 of the water purification cartridge 230 and flows out to the outer peripheral flow path 231 to purify the water quality. Further, the purified mixed water flows from the outer circumferential side channel 231 to the cartridge receiving outer surface side channel 216a provided in the channel switching valve 240, the hole 243f formed on the valve body side, and the hole 242e formed on the valve seat side. To the space 220a of the head portion 220 through the space 220a, and from the space 220a through the collecting passage member 226, according to the setting of the discharge switching valve 250, the shower discharge surface upstream space 220. Or flows into the straight discharge passage 227b, clarified mixed water is straight discharge or shower discharge.

Next, when this water purification discharge is performed, the projecting portion 241 of the flow path switching valve 240 is rotated by a necessary angle in a predetermined direction along the outer peripheral surface of the gripping portion 210, and as shown in FIGS. The central space 232, the flow path 216b on the inner surface of the cartridge receiver provided in the flow path switching valve 240, the hole 243e formed on the valve body side, and the hole 242e formed on the valve seat side communicate with the space 220a of the head 220. When the outer peripheral side flow path 231 is closed, the mixed water flowing in from the hose connection part 214 side of the gripping part 210 is received from the central space part 232 in the cartridge switching valve 240. It flows out into the space 220a of the head 220 through the flow path 216b on the inner surface side, the hole 243e formed on the valve body side, and the hole 242e formed on the valve seat side, and the collective passage member 2 from this space 220a 6 flows into the shower discharge surface upstream space 220c or straight discharge passage 227b in accordance with the setting of the discharge switching valve 250 through the mixing water without being purified, is straight discharge or shower discharge remains raw.
Thereafter, when the projecting portion 241 of the flow path switching valve 240 is rotated along the outer peripheral surface of the gripping portion 210 by the same angle in the opposite direction to the raw water discharge, the flow returns to the case of the clean water discharge as shown in FIGS. It becomes possible to discharge purified water.

As for the operation of the discharge switching valve 250, the mixed water can be discharged straight or discharged by operating the switching lever 251 as in the case of the first embodiment.
First, when the switching lever 251 is operated and rotated to the straight discharge side, the valve body 250a is disengaged from the position of the opening 227a of the straight discharge flow path forming member 227, and the mixed water flowing out from the collecting passage member 226 is used for straight discharge. It flows into the opening 227a of the flow path forming member 227, passes through the straight discharge flow path 227b, and is discharged from the straight discharge port 222.

Then, when the switching lever 251 is set to the straight discharge side, when the switching lever 251 is operated in the opposite direction and rotated to the shower discharge side, as shown in FIG. 44 or 57, the plate portion of the valve body 250a 250b is positioned above the opening 227a of the straight discharge flow path forming member 227, closes the opening 227a, and the mixed water flowing out of the collective passage member 226 is blocked by the plate portion 250b of the valve body 250a, and the straight discharge flow path The liquid flows out around the forming member 227 and is discharged from the shower discharge port 223 through the shower discharge surface upstream space 220 c formed by the partition member 225 and the shower plate 221.
Thereafter, when the switching lever 251 is operated and rotated to the straight discharge side, the discharge is changed from the straight discharge port 222 as described above.

Thereby, by rotating the protrusion part 241 of the flow path switching valve 240 around the center axis of the grip part 210 and along the outer peripheral surface, it is possible to easily switch between purified water discharge and raw water discharge. The mixed water is purified when it passes through the water purification material 233 from the central space 232 of the water purification cartridge 230 to the outer peripheral flow path 231, and when the raw water is discharged, the water quality of the cartridge for water purification 230 is improved. The flow path on the upstream side of the purification material 233 is washed away by the mixed water passing through the surface side of the filter 235, so that the accumulated matter on the filter surface accumulated during the purification water discharge is washed away, and clogging is less likely to occur. Deterioration is prevented and water purification performance can be maintained at a high level for a long period of time.
In addition to this, since the discharge switching valve 250 is completely independent of the flow path switching valve 240, either straight discharge or shower discharge is selected regardless of whether raw water or purified water is discharged. It can be discharged and four types of available forms can be selected.

[Third Embodiment]
In the first embodiment or the second embodiment, a flow path switching valve for selecting discharge of raw water and purified water is provided on the downstream side of the water purification cartridge. In this third embodiment, the cartridge for water purification is provided. When a flow path switching valve is provided on the upstream side, and raw water is introduced to the flow path formed on the outer peripheral side of the water purification cartridge and purified while passing from the outer peripheral side to the central space in the center. Will be described in detail.
In the following description, the reference numerals of the respective members are identified as numbers in the 300s to identify the first embodiment, and members other than the members related to the configuration of the flow path switching valve are the same as in the first embodiment. In addition, the same reference numerals are used for the last two digits of the 300 range, and the description is omitted.

〔Constitution〕
As shown in the external views of FIGS. 59 to 61, the shower head 300 with a water purifying function includes a gripping portion 310 having an end portion that can be attached to a mixing tap or a hose provided in the mixing tap, and the gripping portion 310. And a head portion 320 that is integrally formed at the end opposite to the mixing faucet mounting side so that the shower can be discharged.

The gripping part 310 is divided into a cylindrical part 311 directly connected to the head 320 side and a cylindrical part 312 on the side of the mixing faucet, and can be detachably and integrally combined with the connecting part of the cylindrical parts 311 and 312. A relay portion 313 having a screw coupling portion that can be formed is formed, and the screwing of the relay portion 313 is released to separate the tube portion 311 and the tube portion 312, thereby providing water purification in the grip portion 310. The cartridge 330 (see FIGS. 62 and 63) can be accommodated. Further, a cylindrical hose connection portion 314 is provided at the end on the side of the mixed water faucet attachment, and a hose attachment screw 315 is formed at the tip thereof to facilitate attachment / detachment with the hose.
In addition, a protruding portion 341 that is an operation end of the flow path switching valve 340 is protruded from an end of the gripping portion 310 on the hose attachment side, which is upstream of the water purification cartridge 330, and a flow path is formed from the outside of the gripping portion 310. It forms so that the switching valve 340 can be operated.

  The head 320 forms a space (cavity) 320a (see FIG. 63) in which the mixed water flowing in from the gripping part 310 stays, and has a discharge surface for uniformly discharging the mixed water at the discharge end. A flexible shower plate 321 is formed, a straight discharge port 322 is provided at the center of the shower plate 321, a shower discharge port 323 is provided so as to surround the periphery, and a discharge switching valve 350 that switches between straight discharge and shower discharge is provided. A switching lever 351 that is provided inside and that serves as an operating portion of the discharge switching valve 350 is disposed so as to protrude from the shower plate 321.

In this shower head 300 with a water purification function, as shown in FIGS. 62 to 64, the outer peripheral flow path 331 of the water purification cartridge 330 built in the grip portion 310 is a part of the raw water flow path, and the water purification cartridge 330 The central space 332 is used as a part of the purified water channel or the raw water channel.
The water purification cartridge 330 in this case includes a water purification material 333 mainly composed of activated carbon formed in a cylindrical shape by providing a long through hole (central space portion 332) concentrically with the central axis in the axial direction, and an outer periphery thereof. End caps 330a and 330b for concentrically fitting and fixing in the gripping portion are attached to each end on a filter 334 made of non-woven fabric, sponge or mesh on the surface.

  The cylindrical portion 311 located on the head 320 side of the grip portion 310 has a cylindrical shape in which an end portion on the downstream side (head side) of the water purification cartridge 330 is inserted and fixed to a head-side end surface inside the cylindrical portion 311. The downstream end of the water purification cartridge 330 is inserted into the cartridge receiver 316 by inserting the insertion end of the downstream end cap 330a provided in the water purification cartridge 330 into the cartridge receiver 316. Enable centering and positioning.

  The relay part 313 between the cylinder part 311 and the cylinder part 312 is screwed together, and the cylinder part 312 is assembled to the cylinder part 311, so that the upstream end (hose connection side) of the water purification cartridge 330 is connected to the cylinder. It is fitted into a cylindrical cartridge receiver 317 provided in a flow path switching valve 340 disposed inside the end located upstream of the section 312, centered and fixed in position, The water purification cartridge 330 is accommodated substantially coaxially.

Thereby, the flow path 316a on the outer peripheral side of the cartridge receiver 316 communicates with the outer peripheral flow path 331 of the water purification cartridge 330 to become a closed end portion of the raw water flow path, and further, a flow path 316b on the inner surface side of the cartridge receiver 316. Communicates with the central space 332 of the water purification cartridge 330 to form a part of the purified water flow path and a part of the raw water flow path.
The flow path 317b on the inner surface side of the cylindrical cartridge receiver 317 provided in the flow path switching valve 340 communicates with the central space 332 of the water purification cartridge 330 to form the end of the purified water flow path. An inlet portion of the raw water flow path is formed, and a flow path 317 a on the outer peripheral side of the cartridge receiver 317 communicates with the outer peripheral side flow path 331 of the water purification cartridge 330 to form an inlet portion of the raw water flow path.

A partition member 325 for partitioning the space 320a and the shower discharge surface upstream space 320c is formed on the downstream side of the space 320a formed inside the head 320 and upstream of the portion accommodating the discharge switching valve 350. The collective passage member 326 is provided at the center of the disk-shaped partition plate 325a of the partition member 325.
The discharge switching valve 350 provided on the downstream side of the partition member 325 is disposed so that the valve body 350a can be positioned immediately below the collect passage member 326.
Further, on the further downstream side of the position where the collective passage member 326 and the valve body 350a of the discharge switching valve 350 are arranged above and below, a straight discharge channel is formed which communicates with the straight discharge port 322 formed in the shower plate 321. The member 327 is erected.

As shown in FIGS. 65 and 66, the head portion 320 projects a cylindrical portion 311 toward the gripping portion, and a male screw 313c for screw coupling to the cylindrical portion 312 is attached to the tip of the projected cylindrical portion 311. A cylindrical outer surface 313e for centering is formed on the outer surface side to form the male side of the relay portion 313, and an O-ring necessary for preventing the relay portion 313 from leaking is formed in the central portion in the axial direction of the cylindrical outer surface 313e. An O-ring groove 313f for fitting (see FIGS. 62 and 63) is formed.
And, on the discharge side of the head 320, a head skin 320b is formed which is a hollow with a top formed in a curved surface and a main part formed in a substantially cylindrical shape, and no special protrusion is provided inside, A partition plate, a discharge switching valve, and the like can be accommodated.

As shown in FIGS. 67 to 70, the cylindrical portion 312 formed so as to be separable from the cylindrical portion 311 has a substantially cylindrical shape, and has an end surface 312 b provided with a circular hole at the end on the hose connection side. A cylindrical hose connection part 314 is projected from the end face, and a hose attachment screw 315 is formed at the tip part.
A female screw 313b and fitting cylindrical inner surfaces 313a and 313d are formed on the inner surface side of the end portion on the most downstream side of the cylindrical portion 312 at the front and rear positions in the axial direction of the female screw forming portion. The side is formed and can be screwed and coupled to the male relay portion 313 on the cylindrical portion 311 side.
On the other hand, at the upstream end of the cylindrical portion 312, the long side is directed in the circumferential direction that penetrates the projecting portion 341 serving as the operation end of the flow path switching valve 340 at a predetermined distance from the end surface 312 b. A hole 312c having a rectangular planar shape is formed. The length of the long side of the rectangular hole 312c is defined in accordance with the maximum movement distance of the protruding portion 341 according to the operation angle of the flow path switching valve 340.

A cartridge whose inner diameter is formed at the upstream end of the cylindrical portion 312 in accordance with the end edge (insertion end) of the end cap 330b on the hose connection side of the water purification cartridge 330. A flow path switching valve 340 in which a receptacle 317 is formed is built in, and a protruding portion 341 of the flow path switching valve 340 is projected outside the cylindrical portion 312 through a rectangular hole 312 c provided in the cylindrical portion 312.
In addition, a protruding portion 314a protrudes on the outer peripheral side of the hose connection portion 314, and is used as a positioning rib when fitted and supported in the holder portion of the faucet body.

As shown in FIGS. 62 to 64, the flow path switching valve 340 that switches between raw water and purified water includes a projecting portion 341 serving as an operation member for performing a valve opening / closing operation, and a valve seat forming member 342 that is fixed to the cylindrical portion 312. , And a valve body forming member 343 that is moved by the protruding portion 341.
As shown in FIGS. 71 to 73, the protruding portion 341 is curved along the outer periphery of the position where the finger hook portion 341 a protrudes radially outward at the center portion and the rectangular hole 312 c of the cylindrical portion 312 is drilled. The operation member 341b formed in a curved plate shape capable of covering the rectangular hole 312c formed in the cylindrical portion 312 over the entire operation range during operation, and the finger hooking portion protruding side of the operation member 341b It consists of the latching | locking part 341c with respect to the valve body formation member 343 protrudingly provided in the position on the opposite side (inner center part of a curved surface).

  As shown in FIGS. 74 to 76, the valve seat forming member 342 includes a disc portion 342 a that forms a partition plate that partitions between the water purification cartridge housing portion side and the inflow side end portion of the cylindrical portion 312, Formed on the outer peripheral edge is a fitting outer shape that fits into the cylindrical portion 312 and protrudes in a ring shape into a peripheral protruding portion 342b, and on one surface, a valve body fitting that forms a cylindrical inner surface into which the valve body forming member 343 is fitted. A portion 342c, a hole 342e that forms a thick portion 342d in the middle position between the center and the periphery of the disc portion 342a, and becomes a flow path drilled in the center position, and a hole 342e on the surface on the valve body fitting side An O-ring groove 342f carved around the position where the hole is formed is formed.

77 to 80, the valve body forming member 343 forms a thick disc portion 343a having a surface that contacts the disc portion 342a of the valve seat forming member 342, and the thick disc portion 343a One surface side is a surface that abuts on the disc portion 342a of the valve seat forming member 342, and a cartridge receiver 317, which is an inner cylinder portion at the center portion, projects concentrically with respect to the center of the disc on the other surface side. A cylindrical outer cylinder part 343b is formed concentrically on the peripheral edge of the plate part 343a and formed into a double cylindrical shape with one end closed.
A thick portion 343c is formed on the outer peripheral side of the outer cylindrical portion 343b of the double cylinder, and has an outer dimension necessary to fit inside the cylindrical portion 312 and is thickened on the outer peripheral side. An O-ring groove 343d is formed on the outer peripheral surface of the thick portion 343c.

  Then, holes 343e and 343f serving as one flow path are formed in the middle position between the center and the periphery of the thick disc portion 343a at positions about 90 degrees apart at the central angle on the same circumference, and the valve seat The hole peripheral portion of the surface of the forming member 342 that does not come into contact with the disk portion 342a is formed around the hole 343e by the wall surface forming a part of the bottomed cylinder having the same thickness as the cartridge receiver 317. By covering the position on the outer peripheral side and similarly covering the inner peripheral side of the cartridge receiver 317 in the hole 343f, flow paths communicating with the holes 343e and 343f for the inner surface side and the outer surface side of the cartridge receiver 317 are formed.

Further, on the outer peripheral side of the outer cylindrical portion 343b, the protruding sides forming the inverted T-shaped groove 343g are faced to each other with the end surface of the thick portion 343c facing the arrangement side of the thick disc portion 343a as the back. The key-shaped members 343h and 343i are protruded, and the locking portion 341c on the protruding portion 341 side is engageable and can be freely inserted and removed in the axial direction of the valve body forming member 343.
Further, a stepped portion 343j formed so that an O-ring can be fitted in the outer peripheral edge portion instead of the O-ring groove is provided on the surface of the thick disc portion 343a on the valve seat forming member contact side.

  Thus, the locking portion 341c of the protruding portion 341 is engaged between the key-shaped members 343h and 343i of the valve body forming member 343, and the valve body forming member 343 is formed on the surface of the valve seat forming member 342 on the water purification cartridge housing side. Hole 342e formed in the valve seat forming member 342 when the abutting surface of the disk portion 342a is brought into close contact and rotated 90 degrees clockwise or counterclockwise around the central axis of the thick disc portion 343a. When the holes 343e or 343f of the valve body forming member 343 are aligned on the same axis, the valve is opened with respect to the purified water side flow path or the raw water side flow path, respectively, so that the mixed water passes through the open side flow path. Become.

The partition member 325 incorporated in the head 320 is fitted with a collective passage member 326 for shifting to the entrance to the shower discharge side or the straight discharge side at the center of the disc-shaped partition plate 325a. The shower plate 321 can be screwed to the lower side of the outer peripheral edge, and leakage can be prevented by an O-ring above the screw forming portion.
The fitting hole of the collective passage member 326 provided in the central portion of the partition member 325 is divided into two stages in diameter, and a hole having the same diameter with respect to the circular axial direction is formed in the upper portion, and a shaft is formed in the lower portion. It is formed in a hole that is reduced in diameter downward in the direction, and a step is provided in the middle so that the assembly passage member 326 can be fitted from above.

The collective passage member 326 has an annular groove and a large number of light beams on the outer periphery of the annular groove formed in a rounded cylinder with an outer edge cut into a shallow end surface on the flange side. The outer diameter of the cylindrical portion provided with the annular groove is made smaller than the outer diameter of the collar portion, and the outer lower end portion of the light collar is formed in a shape opened to the side.
Raw water flowing out downward from the opening in the radial direction by adjusting the axial dimension so that the collect passage member 326 reaches the position of the hole formed in the fitting hole of the partition member 325 and having a diameter reduced downward. Or purified water is made to flow out so that it may be concentrated below a center part by the hole diameter-reduced.

  A shower plate 321 serving as a discharge surface forming member located on the downstream side of the partition member 325 is formed in a shape in which an outer peripheral edge is raised from a flat disk portion, and a straight discharge port 322 is formed at the center of the disk portion. The discharge switching valve 350 is passed through the shaft adjacent to the straight discharge port 322 and supported by the shaft, and the shower discharge is formed around the straight discharge port 322 on the surface excluding the straight discharge port 322 and the shaft support portion. A large number of small holes to be the outlets 323 are formed at substantially equal intervals.

The shower plate 321 has a protruding portion forming side on the outer periphery of the disc portion provided with each hole as a mixed water inflow side (upstream side), and an inner peripheral surface side on the protruding portion forming side is partitioned by a female screw. It can be screwed into a male screw provided on the member 325.
Further, a pressing surface for the O-ring is formed on the inner side of the upper end portion of the projecting portion, and the O-ring (see FIG. 63) attached to the partition member 325 is pressed from the outside to prevent leakage when screwing with the partition member 325. It can be so.

Further, a straight discharge flow path forming member 327 is provided above the straight discharge port 322, and a straight discharge flow path forming member 327 is erected at the center of the shower plate, so that a straight discharge side flow path (straight discharge The flow path 327b) and the flow path on the shower discharge side (shower discharge surface upstream space 320c) can be partitioned.
Furthermore, on the outer peripheral surface of the overhanging portion of the shower plate 321, two projecting portions are provided so as to sandwich the outer peripheral surface of the switching lever 351 in the vicinity of the position where the switching lever 351 is provided, and the discharge switching valve 350. When the switching lever 351 is provided between the two protrusions, the operation range of the switching lever 351 can be restricted to the rotation angle given by the interval between the two protrusions.

The straight discharge flow path forming member 327 standing at the center of the shower plate is formed in a cylindrical shape having an end whose upper edge is reduced in diameter toward the inner surface, and the inside of the cylindrical portion is used as the straight discharge flow path 327b. Is done.
The opening 327a formed at the upper end is formed so that the opening diameter is smaller than the inner diameter of the cylindrical portion, so that the valve body 350a of the discharge switching valve 350 can be easily placed. In addition, the outer diameter of the lower end is large enough to fit in the central portion of the shower plate 321 and is formed so that the fitting state is tight so that it can stand upright in the central portion of the shower plate 321 after fitting. .

The discharge switching valve 350 includes a switching lever 351 integrally provided with a valve shaft that passes through the shower plate 321 and is supported so as to be rotatable about an axis, a collect passage member 326, and a straight discharge flow path forming member 327. It is divided into a valve body 350a formed in a thin dish shape whose upper surface is formed in a shallow concave surface so that it can be arranged in a gap provided therebetween.
The switching lever 351 is inserted into a fitting hole formed on the valve body side to be coupled to the valve body 350a, and an elastic member having a rectangular cross section that is biased to the expansion side for preventing disconnection after the coupling. It is connected by a locking part.

The valve body 350a forms a dish part 350b having a convex surface curved with a radius of curvature with the upper surface formed into a shallow concave surface and the lower surface made longer by the plate thickness, and the arm part is extended from the dish part 350b in one direction, A fitting hole having a rectangular cross section is formed in the distal end portion of the arm portion so as to be inserted into the elastic locking portion on the valve shaft side.
The elastic latching portion of the switching lever 351 is inserted into the fitting hole on the valve body 350a until it can be prevented from coming off, and the switching lever 351 and the valve body 350a are integrated, and the valve body 350a and the switching lever 351 are connected. The movable member of the discharge switching valve 350 is integrally coupled with the shower plate 321.

  In the discharge switching valve 350, the valve body 350a is disposed immediately downstream with a slight gap from the collective passage member 326, and the lower surface of the valve body 350a is an opening formed at the upper end of the straight discharge flow path forming member 327. 327a is disposed at the nearest position so as to be able to come into contact with 327a so that it can be covered from the top as a lid of the straight discharge flow path forming member 327, and the valve body 350a is opened by the operation of the switching lever 351. The switching lever 351 is rotated so that the valve body 350a can freely rotate in and out of the upper end of the straight discharge flow path forming member 327 in a range from the upper position to the position where the entire valve body 350a is disengaged from the position of the opening 327a. Set the moving angle.

[Function and effect]
In the third embodiment configured as described above, the water purifier is obtained by rotating the protruding portion 341 of the flow path switching valve 340 provided at the end of the gripping portion 310 on the hose connection side along the outer peripheral surface of the gripping portion 310. In addition, the straight discharge and the shower discharge can be switched by operating the switching lever 351 of the discharge switching valve 350 independently of the switching between the purified water and the raw water.

  Now, when the set position of the flow path switching valve 340 is set to the clean water discharge position as shown in FIGS. 62 to 64, the flow path switching valve 340 is formed on the valve seat side of the flow path switching valve 340. The position of the hole 343e drilled on the valve element side coincides with the hole 342e coaxially, and the outer peripheral flow path 331 of the water purification cartridge 330 is brought into an open state communicating with the inlet side of the flow switching valve 340. . At this time, the mixed water flows from the hose connection part 314 side of the gripping part 310 into the gripping part 310, and the mixed water that has flowed into the hole 342e formed on the valve seat side of the flow path switching valve 340 and the valve body side. The filter 334 and the water purification material 333 are transmitted from the outer peripheral side flow path 331 of the water purification cartridge 330 through the hole 343e and the flow path 317a on the outer surface side of the cartridge receiver 317, and flow into the central space portion 332, The water quality is purified, and the central space portion 332 communicates with the space 320a of the head portion 320. Therefore, the purified mixed water flows from the central space portion 332 through the flow path 316b on the inner surface side of the cartridge receiver 316. To the space 320a. Then, in accordance with the setting of the discharge switching valve 350 from the space 320a through the collective passage member 326, it flows into the straight discharge flow path 327b or the shower discharge surface upstream side space 320c, and performs straight discharge or shower discharge.

  Next, when this clean water discharge is performed, the protrusion 341 of the flow path switching valve 340 is rotated by a necessary angle in a predetermined direction along the outer peripheral surface of the gripping portion 310 to flow as shown in FIGS. When the path switching valve 340 is adjusted to the raw water discharge position, the position of the hole 343f drilled on the valve body side coincides with the hole 342e drilled on the valve seat side of the flow path switching valve 340, so that the water quality The outer peripheral side flow path 331 of the purification cartridge 330 is closed from the inlet side of the flow path switching valve 340, and the central space 332 of the water quality purification cartridge 330 is opened to communicate with the inlet side of the flow path switching valve 340. To.

  At this time, when mixed water flows in from the hose connection portion 314 side of the grip portion 310, a hole 342e drilled in the valve seat side of the flow path switching valve 340, a hole 343f drilled in the valve body side, and Since it flows into the central space 332 via the flow path 317b on the inner surface side of the cartridge receiver 317 and the central space 332 communicates with the space 320a of the head 320, the mixed water is not purified and is directly received in the cartridge receiver. It flows out to the space 320a of the head 320 through the flow path 316b on the inner surface side of 316.

Then, it flows into the straight discharge flow path 327b or the shower discharge surface upstream space 320c from the space 320a through the collective passage member 326 according to the setting of the discharge switching valve 350, and performs straight discharge or shower discharge.
Thereafter, when the projecting portion 341 of the flow path switching valve 340 is rotated along the outer peripheral surface of the gripping portion 310 by the same angle in the opposite direction to that of the raw water discharge, the flow returns to the case of the clean water discharge as shown in FIGS. It becomes possible to discharge purified water.

Further, the operation of the discharge switching valve 350 can be made independent of the operation of the flow path switching valve 340, and straight discharge and shower discharge can be arbitrarily set.
First, when the switching lever 351 is operated to rotate to the straight discharge side about the axis of the valve shaft, the valve body 350a is disengaged from the position of the opening 327a of the straight discharge flow path forming member 327, and the collective passage member 326 is moved. The mixed water flowing out of the straight gas flows into the opening 327a of the straight discharge flow path forming member 327, passes through the inside of the straight discharge flow path 327b, and is discharged from the straight discharge port 322.

Then, when the switching lever 351 is set to the straight discharge side, when the switching lever 351 is operated in the opposite direction and rotated to the shower discharge side about the axis of the valve shaft, FIG. 63 or 82 is obtained. As shown, the dish part 350b of the valve body 350a is positioned above the opening 327a of the straight discharge flow path forming member 327, closes the opening 327a, and the mixed water flowing out from the collective passage member 326 is the dish part of the valve body 350a. It is blocked by 350 b and flows out around the straight discharge flow path forming member 327, and is discharged from the shower discharge port 323 through the shower discharge surface upstream space 320 c formed by the partition member 325 and the shower plate 321. .
Thereafter, when the switching lever 351 is operated to turn to the straight discharge side around the axis of the valve shaft, the discharge is made from the straight discharge port 322 as described above.

Thereby, by rotating the protrusion part 341 of the flow path switching valve 340 around the central axis of the grip part 310 and along the outer peripheral surface, it is possible to easily switch between purified water discharge and raw water discharge. The mixed water is purified when it passes through the water purification material 333 from the outer peripheral channel 331 of the water purification cartridge 330 to the central space 332.
In addition, since the discharge switching valve 350 is completely independent of the flow path switching valve 340, either straight discharge or shower discharge can be selected regardless of whether raw water or purified water is discharged. It can be discharged and four types of available forms can be selected.

[Fourth Embodiment]
In the third embodiment, the outer peripheral side of the water purification cartridge is formed as an upstream flow path before purification. In the fourth embodiment, a flow path switching valve is provided on the upstream side of the water purification cartridge. The case where the central space portion of the water purification cartridge is formed as the upstream flow path before purification will be specifically described.
In the following description, the reference numerals of the respective members are identified as numbers in the 400s to identify the third embodiment, and members other than the members related to the configuration of the flow path switching valve are the same as in the third embodiment. In addition, the same reference numerals are used for the last two digits of the 400 range, and the description is omitted.

〔Constitution〕
As shown in the arrow cross-sectional views of FIGS. 84 to 86, the shower head 400 with a water purification function includes a gripping portion 410 having an end portion that can be attached to a not-shown mixing faucet or a hose provided in the mixing faucet, and this gripping And a head portion 420 that can perform shower discharge at the end of the portion 410 opposite to the mixing faucet mounting side.

The gripping part 410 is divided into a cylindrical part 411 directly connected to the head part 420 side and a cylindrical part 412 on the mixing faucet mounting side, and can be detachably and integrally combined with the joint part of both the cylindrical parts 411 and 412. A relay portion 413 having a screw coupling portion that can be formed is formed, and the screw portion of the relay portion 413 is released to separate the cylindrical portion 411 and the cylindrical portion 412, so that the inside of the gripping portion 410 can be used for water purification. The cartridge 430 can be accommodated. Also, a cylindrical hose connection portion 414 is provided at the end on the side of the mixing faucet attachment, and a hose attachment screw 415 is formed at the tip thereof to facilitate attachment / detachment with the hose.
Further, a protruding portion 441 that is an operation end of the flow path switching valve 440 protrudes from an end of the gripping portion 410 on the hose attachment side, which is upstream of the water purification cartridge 430, so It forms so that the switching valve 440 can be operated.

  The head 420 forms a space (cavity) 420a in which the mixed water flowing in from the gripper 410 stays, and a shower plate 421 having a discharge surface for uniformly discharging the mixed water at the discharge end. The shower plate 421 is provided with a straight discharge port 422 at the center thereof, a shower discharge port 423 is provided so as to surround the periphery thereof, and a discharge switching valve 450 for switching between straight discharge and shower discharge is provided, and the discharge switching is performed. A switching lever 451 serving as an operation portion of the valve 450 is disposed so as to protrude outside the shower plate 421.

The water purification cartridge 430 includes a water purification material 433 mainly composed of activated carbon formed in a cylindrical shape by providing a long through hole (central space portion 432) concentrically with the central axis in the axial direction, and an inner peripheral surface thereof. It is assumed that a filter 435 made of non-woven fabric, sponge, net, or the like is provided around.
Of the flow paths formed by housing the water purification cartridge 430 in the grip portion 410, the outer peripheral side flow path 431 of the water quality purification cartridge 430 is a part of the water purification flow path, and the central space portion of the water quality purification cartridge 430 is formed. 432 is used as part of the raw water flow path.

  The cylindrical portion 411 located on the head 420 side of the gripping portion 410 has a plurality of ribs 411b as cartridge receivers for fixing the downstream end (head side) end of the water purification cartridge 430 therein. The bottom end cap 430a provided in the water purification cartridge 430 is brought into contact with the upstream end surface of the rib 411b, thereby protruding the water quality. The downstream end of the cartridge 430 is centered and fixed in position, the relay part 413 between the cylinder part 411 and the cylinder part 412 is screwed together, and the cylinder part 412 is assembled to the cylinder part 411 to purify the water quality. The end of the cartridge 430 on the upstream side (the hose connection side) is connected to the cylindrical cartridge provided in the flow path switching valve 440 disposed inside the end located upstream of the cylindrical portion 412. Receiving fit into 417, and centering and position fixing, substantially coaxially accommodate the water purification cartridge 430 into the grip portion 410.

As a result, the downstream side of the water purification cartridge 430 is supported by the ribs 411b, so that there is nothing blocking the flow path, and the outer circumferential side flow path 431 of the water purification cartridge 430 and the space 420a of the head 420 communicate with each other. Since the central space portion 432 of the water purification cartridge 430 is closed by the end cap 430a on the downstream side so as to be impassable because it becomes part of the water purification passage or part of the raw water passage. Used only as part of the road.
Further, the outer peripheral flow path (space) 417a of the cartridge receiver 417 communicates with the outer peripheral flow path 431 of the water purification cartridge 430 and becomes an end of the purified water flow path or a part of the raw water flow path. The inner surface side channel 417b communicates with the central space 432 of the water purification cartridge 430 and is used as a part of the raw water channel.

A partition member 425 for partitioning the space 420a and the shower discharge surface upstream space 420c is provided on the downstream side of the space 420a formed inside the head 420 and upstream of the portion accommodating the discharge switching valve 450. The collective passage member 426 is provided at the center of the disk-like partition plate 425a of the partition member 425.
The valve body 450a of the discharge switching valve 450 provided on the downstream side of the partition member 425 is disposed so that the valve body 450a can be positioned immediately below the collect passage member 426.
On the further downstream side of the position where the collect passage member 426 and the valve body 450a of the discharge switching valve 450 are arranged vertically, a straight discharge flow path forming member 427 communicating with a straight discharge port 422 formed in the shower plate 421. Is set up.

As shown in FIGS. 87 to 89, the head portion 420 projects a cylindrical portion 411 toward the gripping portion, and a male screw 413c for screw coupling with the cylindrical portion 412 is connected to the tip end of the projected cylindrical portion 411. The outer cylindrical surface 413e for centering is formed on the outer surface side to form the male side of the relay portion 413, and an O-ring necessary for preventing the relay portion 413 from leaking is formed at the axial central portion of the cylindrical outer surface 413e. An O-ring groove 413f for fitting (see FIGS. 84 and 85) is cut.
Three ribs 411b formed in a plate shape parallel to the axial direction are erected on the end of the cylinder portion 411 on the head side so as to be perpendicular to the inner wall at an equal circumferential pitch. The end face of the rib 411b facing the relay part 413 is positioned at a height required to stop the diameter of the outer end edge of the end cap 430a on the downstream side of the water purification cartridge 430 from the wall face. It is formed on a surface perpendicular to the wall surface after reaching a height from the wall surface that is required to stand up by a gentle slope until the end cap 430a on the downstream side of the water purification cartridge 430 is fitted and stopped. The
Then, on the discharge side of the head 420, a head outer skin 420b is formed which is a cavity in which the top part is formed in a curved surface and the main part is formed in a substantially cylindrical shape, and no special protrusion is provided inside, A partition plate, a discharge switching valve, and the like can be accommodated.

The tube portion 412 on the hose connection side formed so as to be separable from the tube portion 411 is provided with an internal thread on the inner surface side and a cylindrical inner surface for fitting at the end on the most downstream side, as in the third embodiment. It forms in the front-back position of the axial direction of an internal thread formation location, respectively, forms the female side of the relay part 413, and can be screwed and couple | bonded with the male side relay part 413 of the cylinder part 411 side.
At the end on the upstream side of the cylindrical portion 412, the planar shape with the long side in the circumferential direction penetrating the protruding portion 441 serving as the operation end of the flow path switching valve 440 is rectangular at a position away from the end face by a predetermined distance. A hole 412c is formed. The length of the long side of the hole 412c is defined according to the maximum moving distance of the protruding portion 441 according to the operation angle of the flow path switching valve 440.
A cartridge in which the inner diameter side dimension is formed in accordance with the dimension of the end edge portion (insertion end portion) of the end cap 430b on the hose connection side of the water purification cartridge 430 at the upstream end portion of the cylindrical portion 412. A flow path switching valve 440 in which a receiver 417 is formed is built in, and the protruding portion 441 of the flow path switching valve 440 protrudes outside the cylindrical portion 412 through a rectangular hole 412 c provided in the cylindrical portion 412.

The flow path switching valve 440 for switching between raw water and purified water is similar to the third embodiment in that a projecting portion 441 serving as an operation member for performing a valve opening / closing operation, a valve seat forming member 442 fixed to the tube portion 412, And a valve body forming member 443 that is moved by the protrusion 441.
The protruding portion 441 is formed in a curved plate shape in which a finger hook portion protrudes radially outward at the center portion and can cover the rectangular hole 412c drilled in the cylindrical portion 412 over the entire operation range during operation. And an engaging portion for the valve body forming member 443 projecting at a position opposite to the finger hook projecting side of the operating member (inner center portion of the curved surface).

The valve seat forming member 442 is fitted into the cylindrical portion 412 on the outer peripheral edge of a circular plate portion that forms a partition plate that partitions the cylindrical portion 412 between the water purification cartridge housing portion side and the end portion on the inflow side. A peripheral protrusion protruding in a ring shape to form a fitting outer shape, a valve body fitting part having a cylindrical inner surface into which the valve body forming member 443 is fitted on one side, a center and a periphery of the disk part An O-ring groove formed around the position where a hole 442e is formed at a central position of the thick portion and a hole 442e is formed in the central position of the valve, and a hole 442e is formed in the surface on the valve body fitting side. And form.
The valve body forming member 443 forms a thick disc portion having a surface that abuts on the disc portion of the valve seat forming member 442, and the disc portion of the valve seat forming member 442 is disposed on one surface side of the thick disc portion. The cartridge receiver 417, which is an inner cylinder part, is projected concentrically with respect to the center of the disk on the other side, and a cylindrical outer cylinder part is formed on the peripheral edge of the thick disk part. It is formed into a double cylindrical shape projecting concentrically and closed at one end. At the edge part of the outer cylinder part of this double cylinder, a thick part formed to have an outer dimension necessary for being fitted into the cylinder part 412 and to be thick on the outer peripheral side is provided. An O-ring groove is formed on the outer peripheral surface of the meat part.

Then, holes 443e and 443f, each serving as one flow path, are formed in the middle position between the center and the periphery of the thick-walled disk portion at positions about 90 degrees apart on the same circumference and the central angle, thereby forming a valve seat The peripheral portion of the hole of the cartridge receiver 417 around the hole 443e is formed by a wall surface forming a part of a bottomed cylinder having the same thickness as the thickness of the cartridge receiver 417 in the peripheral portion of the hole that does not contact the disk portion of the member 442. By covering similarly the inner peripheral side of the cartridge receiver 417 of the hole 443f, a flow path communicating with the holes 443e and 443f for the inner surface side and the outer surface side of the cartridge receiver 417 is formed.
Further, on the outer peripheral side of the outer cylindrical portion, a key-shaped member that protrudes from the end surface facing the thick disc portion arrangement side of the thick portion and forms an inverted T-shaped groove with the protruding sides facing each other is projected. Thus, the engaging portion on the projecting portion 441 side is formed to be engageable and freely movable in and out in the axial direction of the valve body forming member 443.
Further, a step portion formed so that an O-ring can be fitted in the outer peripheral edge portion instead of the O-ring groove is provided on the surface of the thick disc portion on the valve seat forming member contact side.

  As a result, the locking portion located inside the protruding portion 441 is engaged between the key-shaped members of the valve body forming member 443, and the valve body forming member 443 is disposed on the surface of the valve seat forming member 442 on the water purification cartridge housing side. When the surface abutting on the disc portion is brought into close contact and rotated 90 degrees clockwise or counterclockwise around the central axis of the thick disc portion, the valve element is inserted into the hole 442e provided in the valve seat forming member 442. When the holes 443e or 443f of the forming member 443 are aligned on the same central axis, the valve is opened with respect to the purified water side flow path or the raw water side flow path, respectively, and the mixed water passes through the open side flow path. .

  The discharge switching valve 450 is disposed immediately downstream of the partition member 425 with the valve body 450a slightly spaced from the collective passage member 426, and the lower surface of the valve body 450a is connected to the straight discharge flow path forming member 427. It is arranged at the nearest position where it can come into contact with the opening 427a formed at the upper end so that it can be covered from the top as a lid of the straight discharge flow path forming member 427, and the valve body is operated by operating the switching lever 451. The valve body 450a can freely rotate in and out of the upper end of the straight discharge flow path forming member 427 in a range from 450a to a position immediately above the opening 427a until the entire valve body 450a is disengaged from the position of the opening 427a. The rotation angle of the switching lever 451 is set.

[Function and effect]
In the fourth embodiment configured as described above, the protruding portion 441 of the flow path switching valve 440 provided at the end of the gripping portion 410 on the hose connection portion 414 side is rotated along the outer peripheral surface of the gripping portion 410. It is possible to switch between purified water and raw water, and by operating the switching lever 451 of the discharge switching valve 450, it is possible to switch between straight discharge and shower discharge independently of switching between purified water and raw water. become.

  Now, when the projection 441 of the flow path switching valve 440 is operated to set the flow path switching valve 440 to the purified water discharge position as shown in FIGS. The position of the hole 443e formed on the valve body side coincides with the hole 442e provided coaxially, and the central space portion 432 of the water purification cartridge 430 is in an open state communicating with the inlet side of the flow path switching valve 440. To do. At this time, the mixed water flows into the gripping portion 410 from the hose connection portion 414 side of the gripping portion 410, and the mixed water that has flowed into the hole 442e formed on the valve seat side of the flow path switching valve 440 and the valve body side. It reaches the central space 432 of the water purification cartridge 430 through the provided hole 443e and the flow path 417b on the inner surface side of the cartridge receiver 417, and passes through the filter 435 and the water purification material 433 from the central space 432. , And flows out to the outer peripheral side flow path 431, and the outer peripheral side flow path 431 communicates with the space 420 a of the head 420, so that the purified mixed water flows from the outer peripheral side flow path 431 to the ribs 411 b,. It passes between 411b and flows out into the space 420a of the head 420. Then, according to the setting of the discharge switching valve 450 from the space 420a via the collective passage member 426, the straight flow or the shower discharge flows into the straight discharge flow path 427b or the shower discharge surface upstream space 420c.

  Next, when this purified water discharge is performed, the protrusion 441 of the flow path switching valve 440 is rotated by a necessary angle in a predetermined direction along the outer peripheral surface of the gripper 410, as shown in FIGS. When the flow path switching valve 440 is set to the raw water discharge position, the position of the hole 443f drilled on the valve body side coincides with the hole 442e drilled on the valve seat side of the flow path switching valve 440, The outer flow path 431 of the water purification cartridge 430 is opened to communicate with the inlet side of the flow switching valve 440, and the central space portion 432 of the water purification cartridge 430 is closed from the inlet side of the flow switching valve 440. Put it in a state.

At this time, if mixed water flows in from the hose connection side of the gripper 410, the hole 442e formed on the valve seat side of the flow path switching valve 440, the hole 443f formed on the valve body side, and the cartridge receiver It flows into the outer peripheral flow path 431 of the water purification cartridge 430 through the outer peripheral flow path 417a of 417, and the mixed water flows out from the outer peripheral flow path 431 to the space 420a of the head 420 without being purified. . Then, it flows into the straight discharge flow path 427b or the shower discharge surface upstream side space 420c from the space 420a through the collective passage member 426 according to the setting of the discharge switching valve 450, and performs straight discharge or shower discharge.
Thereafter, when the protruding portion 441 of the flow path switching valve 440 is rotated along the outer peripheral surface of the gripper 410 in the opposite direction to that of the raw water discharge, it returns to the case of the clean water discharge as shown in FIGS. It becomes possible to discharge purified water.

Further, the operation of the discharge switching valve 450 can be performed independently of the operation of the flow path switching valve 440, and straight discharge and shower discharge can be arbitrarily set.
First, when the switching lever 451 is operated and rotated to the straight discharge side about the axis of the valve shaft, the valve body 450a is disengaged from the position of the opening 427a of the straight discharge flow path forming member 427, and the collective passage member 426 is moved. The mixed water flowing out of the straight gas flows into the opening 427a of the straight discharge flow path forming member 427, passes through the straight discharge flow path 427b, and is discharged from the straight discharge port 422.

Then, when the switching lever 451 is set to the straight discharge side, when the switching lever 451 is operated in the opposite direction and rotated to the shower discharge side around the axis of the valve shaft, FIG. As shown, the dish portion 450b of the valve body 450a is positioned above the opening 427a of the straight discharge flow path forming member 427, closes the opening 427a, and the mixed water flowing out from the collective passage member 426 is the dish portion of the valve body 450a. It is blocked by 450 b and flows out around the straight discharge flow path forming member 427, and is discharged from the shower discharge port 423 through the shower discharge surface upstream space 420 c formed by the partition member 425 and the shower plate 421. .
Thereafter, when the switching lever 451 is operated to rotate to the straight discharge side around the axis of the valve shaft, the discharge is made from the straight discharge port 422 as described above.

Thereby, by rotating the protrusion 441 of the flow path switching valve 440 around the central axis of the gripper 410 and along the outer peripheral surface, it is possible to easily switch between purified water discharge and raw water discharge. The mixed water is purified when it passes through the water purification material 433 from the central space 432 of the water purification cartridge 430 to the outer peripheral flow path 431.
In addition, since the discharge switching valve 450 is completely independent of the flow path switching valve 440, either straight discharge or shower discharge is selected regardless of whether raw water or purified water is discharged. It can be discharged and four types of available forms can be selected.

100, 200, 300, 400 Shower head with water purification function 110, 210, 310, 410 Grasping part 111, 112, 211, 212, 311, 312, 411, 412 Tube part 111a, 211a, 311a, 411a (rectangular) hole 112a, 411b Ribs 112b, 212b End surfaces 113, 213, 313, 413 Relay portions 113a, 313a Cylindrical inner surface 113b, 313b Female threads 113c, 213c, 313c, 413c Male threads 113d, 313d Cylindrical inner surfaces 113e, 213e, 313e, 413e Cylindrical outer surface 114, 214, 314, 414 Hose connection 114a, 214a, 314a, 414a Protrusion 115, 215, 315, 315 Hose mounting screw 116, 216, 217, 316, 317, 417 Cartridge receptacle 116a , 216a, 316a (outer side) channels 116b, 216b, 316b (inner side) channels 217a, 317a, 417a (outer side) channels 217b, 317b, 417b (inner side) channels 120, 220 , 320, 420 Head 120a, 220a, 320a, 420a Space (cavity)
120b, 220b, 320b, 420b Head skin 120c, 220c, 320c, 420c Shower discharge surface upstream space (discharge switching valve accommodation space)
121, 221, 321, 421 Shower plate 121a Disc part 121b Overhang part 121c Multi-thread female screw 121d Step part 121e Recessed part 121f Projection part 122, 222, 322, 422 Straight discharge port 123, 223, 323, 423 Shower discharge port 124 Shaft holes 125, 225, 325, 425 Partition member 125a Disc-shaped partition plates 125b, 125c Annular member 125d Fitting hole 125e Multi-thread male screw 125f O-ring groove 126, 226, 326, 426 Aggregate passage member 126a Column portion 126b Groove 126c 126d collar 127, 227, 327, 427 Straight discharge flow path forming member 127a, 227a, 327a, 427a Opening 127b, 227b, 327b, 427b Straight discharge flow path 130, 230, 330, 430 Water purification Cartridge 131, 231, 331, 431 Peripheral flow path 132, 232, 332, 432 Central space 133, 233, 333, 433 Water purification material 134, 235, 334, 435 Filter 140, 240, 340, 440 Flow path Switching valve 141, 241, 341, 441 Protruding part 141a, 241a Finger hooking part 141b, 241b Operating member 141c, 241c Locking part 142, 242, 342, 442 Valve seat forming member 142a, 242a Disc part 142b, 242b Peripheral protrusion Portions 142c, 242c Valve body fitting portions 142d, 242d Thick portions 142e, 242e Holes 142f, 242f, 342f, 442f O-ring grooves 143, 243, 343, 443 Valve body forming members 143a, 243a Thick disc portions 143b, 243b outer cylinder part 143c, 243c thick 143d, 243d O-ring grooves 143e, 243e, 343e, 443e Holes 143f, 243f, 343f, 443f Holes 143g, 243g, 343g Grooves 143h, 143i, 243h, 243i, 343h, 343i Key-shaped members 150, 250, 350, 450 Discharge Switching valve 150a, 250a, 350a, 450a Valve body 150b, 250b, 350b, 450b Dish part 150c Arm part 150d Fitting hole 150e Shaft coupling part 151, 251, 351, 451 Switching lever 151a Valve shaft 151b Lever part 151c Finger hook part 151d Recessed portion 151e Elastic locking portion

Claims (3)

A water discharge head with a water purification function that forms a water discharge port at the tip of a cylindrical gripping part and houses a water purification cartridge in the gripping part,
A cartridge receiver for inserting and fixing the water purification cartridge on the downstream side in the gripping portion is provided, and a seating portion that is in contact with the water purification cartridge is erected in the vicinity of the periphery of the water inlet of the inner bottom portion of the gripping portion.
The water purification cartridge is made of a water purification material that is permeable to water and is formed in a cylindrical shape having a central space portion, and the outer peripheral surface is a gap that forms an outer peripheral flow path between the inner peripheral surface of the gripping portion. A cartridge body to form a
A downstream end connecting member that covers a downstream end surface of the cartridge body and has a connection end that is formed with a connection port that communicates with the central space, and that inserts and fixes the connection end into the cartridge receiver;
An upstream end closing member that closes the upstream end surface of the cartridge main body, abuts against the seating portion, fixes the cartridge main body in the axial direction, and forms a flow path from the water inlet to the outer peripheral flow path. And formed from
In the gripping part, a purified water flow path in which water permeates and discharges the water purification material from the outer circumferential flow path to the central space, and the outer flow on the outer circumferential side without passing through the water purification material. And forming a raw water flow path discharged through the path,
A water discharge head with a water purification function, comprising a flow path switching valve that selectively opens one of the water purification flow path and the raw water flow path . The water discharging head with a water purifying function according to claim 1 , wherein the seating portion abuts on an upstream end surface and an outer peripheral surface of the upstream end closing member, and fixes the position of the cartridge body in the axial direction and the radial direction . A water discharge head with a water purification function that forms a water discharge port at the tip of a cylindrical gripping part and houses a water purification cartridge in the gripping part,
The water purification cartridge is made of a water purification material that is permeable to water and is formed in a cylindrical shape having a central space portion, and the outer peripheral surface is a gap that forms an outer peripheral flow path between the inner peripheral surface of the gripping portion. A cartridge body to form a
A downstream end connection member that has a connection end that covers a downstream end surface of the cartridge body and has a connection port that communicates with the central space portion;
An upstream end closing member for closing the upstream end surface of the cartridge body,
In the gripping part, a purified water flow path in which water permeates and discharges the water purification material from the outer circumferential flow path to the central space, and the outer flow on the outer circumferential side without passing through the water purification material. And forming a raw water flow path discharged through the path,
A flow path switching valve for selectively opening one of the purified water flow path and the raw water flow path is provided on the downstream side of the housing location of the water purification cartridge,
This flow path switching valve is composed of a valve seat formed by drilling a valve seat flow path in a plate-like member that bisects the flow path in the axial direction, and a rotating valve body that rotatably contacts the valve seat. ,
The rotating valve body has a flat plate portion that rotatably contacts the valve seat, and a cartridge receiver that is erected in a cylindrical shape from the flat plate portion and inserts and fixes the connection end of the water purification cartridge, The flat plate portion is formed with a valve body water purification port communicating with the cartridge receiver and a valve body raw water port communicating with the outer peripheral flow path on the same circumference from the center of rotation. by the rotation, the valve body purified water outlet and any water discharge head purification with water ability to characterized in that one match in the valve seat passage between the valve body raw water inlet.

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