JP3347258B2 - Switching valve and its combination - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching valve disposed between a water tap and a water purifier, and more particularly to a switching valve attached to the water tap to switch between a raw water passage and a water passage for sending water to the water purifier. And a switching valve for discharging water in a straight or shower shape.

[0002]

2. Description of the Related Art Conventionally, a switching valve as shown in FIG. 7 has been known as a switching valve. In FIG. 7, 1 is a switching valve body,
2 is a raw water channel, 3 is a cylindrical portion inside which a water channel is formed and is rotatable with respect to an axis. , Provided with a phase shift in the longitudinal direction of the cylindrical portion 3, 7 is a cock for rotating the cylindrical portion 3, 8 is a fixing ring attached to the faucet, 9 is a raw water straight outflow port communicating with the opening 5, 10 is A raw water shower outlet communicating with the opening 6, a screw portion 11 for fitting a shower cap, and a display portion 12 for switching a water channel.

[0003] In the switching valve shown in FIG. 7, when the barrel 3 is rotated by the cock 7 so that the opening 5 of the barrel 3 and the raw water straight outflow port 9 coincide with each other, the raw water flows from below the switching valve body 1. Spout water straight. Tube part 3 by cock 7
Is rotated, and the opening 6 of the cylindrical part 3 and the raw water shower outlet 1 are rotated.
When 0 is matched, the raw water is discharged in a shower shape from below the switching valve body 1.

However, in such a conventional switching valve, since the packing is in close contact with the rotatable cylinder,
There is a drawback that the load due to the rotation of the cylindrical portion is large and the cock is difficult to turn, and in order to reduce this load, there is also a means of applying grease to the contact portion of the packing with the cylindrical portion,
When the operating time of the switching valve is prolonged, the applied grease flows out with water, causing a problem that its effect is lost.
Further, in the conventional switching valve, since the cock is located on the vertical plane of the extension axis of the cylindrical portion, the display unit for indicating the switching state must be arranged near the base of the cock, and the display unit is Since the size of the display unit becomes small and the display unit has to be arranged in a part that is hardly visible in appearance, there is a problem that an erroneous switching operation is easily caused.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to make it easy to understand the switching state between a raw water channel for discharging raw water in a straight shape or a shower shape and a channel for supplying water to a water purifier.
In addition, a switching valve capable of performing smooth switching with a small load in switching operation and its connection with a water purifier.
Is to provide the body .

[0006]

SUMMARY OF THE INVENTION The present invention relates to a switching valve disposed between a water tap and a water purifier, which discharges raw water as it is into a straight water or a shower as it can be connected to the water tap. Equipped with a raw water discharge port and a raw water supply port that can be connected to the water purifier, and to the raw water discharge port or raw water supply port using a rotating shaft that rotates in conjunction with the rotation operation of the switching cock inside the switching valve body. of a waterway change-over mechanism for switching waterways, shows only a corresponding state of the switching of the channel by switching cock on the outer wall of the switching valve body, and the rotary shaft middle axis of the separate
A switching valve in which an indicator having a display member that rotates in conjunction with the rotation shaft is disposed in the heart, and a connection portion of a water purifier is connected to a raw water supply port of the switching valve. Conjugate.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the switching valve of the present invention, and FIG. 2 is a bottom view of the switching valve of the present invention. 1 and 2, 2
1 is a switching valve main body, 22 is a switching cock, 23 is a raw water inlet which can be fixed to a faucet, 24 is an indicator, 25 is a purified water display window, 26 is a raw water shower display window, 27 is a raw water straight display window, and 28 is a raw water straight display window. A discharge port, 29 is a raw water shower discharge port, and 30 is a raw water supply port.

The switching valve of the present invention comprises a raw water inlet 23 which can be connected and fixed to a faucet, a raw water straight discharge port 28 which discharges raw water as it is, a raw water shower discharge port 29 which discharges raw water as it is in a shower form, and water purification. A raw water supply port 30 connectable to a vessel is provided, and a rotation shaft that rotates in conjunction with the rotation operation of the switching cock is provided inside the switching valve body 21.
Te has a switching mechanism for switching waterways each raw water discharge port 28, 29 or raw water supply port 30, the water channel by switching cock 22 on an outer wall front portion of the switching valve body 21 is switched in
Only the applicable state is displayed, and the axis separate from the rotation axis is
An indicator 24 having a display member that rotates in conjunction with the rotation shaft is disposed in the heart .

FIGS. 1 and 2 show a state where the water channel has been switched to the raw water supply port 30. This state is displayed on the purified water display window 25 of the indicator 24, and the raw water shower display windows 26 and 27 are displayed. The raw water straight display window 27 is not displayed. When the switching cock 22 switches to the water path to the raw water shower discharge port 29, the raw water is discharged in a shower form from the raw water shower discharge port 29, and this state is displayed on the raw water shower display window 26.
The raw water straight display window 27 is not displayed. Further, when switching to the channel to the raw water straight discharge port 28, the raw water is discharged straight from the raw water straight discharge port 28, and this state is displayed on the raw water straight display window 27, and the purified water display window 25, the raw water shower display window. 26 is not displayed.

The water purification display window 25, the raw water shower display window 26, and the raw water straight display window 27 of the indicator 24 may be formed by notches or transparent plates, and the shape of the display window is not particularly limited. It is preferable to make the display as large as possible in order to make the display easier to see, and it is preferable that the display be colored or further colored in a fluorescent color or the like. In addition, it is also preferable to write characters near each display window. It is preferable that the raw water supply port 30 has a structure connectable to a water purifier, and has a fitting structure detachable from a connection portion of the water purifier, and may be any of a screw type, a coupler type, a bayonet type, and the like.

The material of the housing of the switching valve of the present invention is preferably a tough, pressure-resistant, heat-resistant hard plastic such as ABS resin or polycarbonate resin.

In the switching valve of the present invention, it is preferable that the switching mechanism provided inside the switching valve body is a switching mechanism using a ball valve in which a water passage is opened and closed by a ball moved by an arm of a rotating shaft of the switching cock. Such a ball valve switching mechanism will be described with reference to FIGS. FIG.
3 is a cross-sectional view taken along the line SS in FIG. 1, FIG. 4 is a vertical cross-sectional view taken along the line AA in FIG. 3, FIG. 5 is a vertical cross-sectional view taken along the line BB in FIG. It is a longitudinal cross-sectional view.

In FIG. 3, 31 is a seal ball for water purification, 32 is a seal ball for raw water shower, 33 is a seal ball for straight raw water, 34 is a rotary shaft with an arm provided with an arm axisymmetrically, and 35 is a display crank for water purification. , 36
Is a display crank for raw water shower, 37 is a display crank for raw water straight, 38 is a crank support rod, 39 is an O-ring, and 40 is a stop screw. 4 to 6, reference numeral 41 denotes a raw water inlet, 42 denotes an opening for a raw water shower,
43 denotes an opening for water purification, and 44 denotes an opening for raw water straight.

FIGS. 3 to 6 show a state in which the water channel is switched to the raw water supply port 30. In this switched state, as shown in FIG. The sealing ball 31 for water purification, which closes the portion 43 by water pressure, is pushed up by one arm of the rotating shaft 34 with the arm, opening the opening 43 for water purification and forming a water channel to the raw water supply port 30. On the other hand, as shown in FIG. 4, the raw water shower opening 42 is closed by the raw water shower seal ball 32, and as shown in FIG. 6, the raw water straight opening 44 is formed by the raw water straight seal ball 33. Each is closed and no water channel is formed.

The difference in the operation of the switching valve is caused by the fact that the arm of the rotary shaft 34 with the arm is provided with the phase shifted in the longitudinal direction of the rotary shaft 34, and preferably, the arm of the rotary shaft 34 with the arm is 60 °. It is provided with a phase shift. Accordingly, when the rotary cock 34 with the arm is turned by 60 ° by the switching cock 22 connected to the rotary shaft 34 with the arm, the rotary cock 34 fits on the raw water shower opening 42 and closes the raw water shower opening 42 by water pressure. The seal ball 32 is pushed up by the arm on one side of the rotating shaft 34 with the arm, and opens the raw water shower opening 42 to form a water passage. On the other hand, the water purification opening 43 is closed by the water purification seal ball 31,
Further, the raw water straight opening 44 is closed by the raw water straight seal ball 33, and no water channel is formed.

Further, when the rotating shaft 34 with the arm is further rotated by 60 ° by the switching cock 22, it is accommodated in the opening 44 for the raw water straight and the opening 44 for the raw water straight.
The raw water straight seal ball 33 that closes off by water pressure is pushed up by the arm on one side of the rotating shaft 34 with the arm to open the raw water straight opening 44,
Form a waterway. On the other hand, the opening 43 for water purification is closed by the seal ball 31 for water purification, and the opening 42 for raw water shower is closed by the seal ball 32 for raw water shower, and no water channel is formed. The switching operation of the water channel is performed sequentially or arbitrarily by the switching cock 22.

The material of the switching mechanism is not particularly limited, but the seal balls 31, 32 and 33 are preferably made of a soft rubber such as NBR or silicon which has excellent sealing properties. As the material, a polyacetal resin excellent in pressure resistance and wear resistance is preferable.

In the switching mechanism of the ball valve type shown in FIG. 3, the water path is switched to the respective positions of a seal ball 31 for water purification, a seal ball 32 for raw water shower, and a seal ball 33 for raw water straight around a rotary shaft 34 with an arm. Indication cranks 35, 36, 37 for indicating status
Are provided. One of the cranks is rotated about the crank support rod 38 by the seal ball being pushed up by one arm which is symmetrical to the rotating shaft 34 with the arm and being pushed down by the other arm. At this time, a projection provided at the lower end of the crank appears on the display window to indicate a corresponding switching state. On the other hand, the other crank is not pushed downward by the arm, so that rotation around the crank support rod 38 does not occur, and the projection provided at the lower end of the crank does not appear in the display window. Indicator 2
The display of the switching state in the switching cock 4
2 is performed each time the water channel is switched, and only the corresponding switching state is shown.

The projections provided at the lower ends of the respective cranks appear in the display windows 25, 26 and 27, and may be color-coded or further colored with a fluorescent color or the like. The material of each crank and the crank support rod 38 is not particularly limited, but the material of the crank is preferably a polyacetal resin having excellent pressure resistance and wear resistance, and the material of the support rod 38 is a metal such as stainless steel. Is preferred.

[0020]

1 to 6 show, as an embodiment, a cross-sectional view and a vertical cross-sectional view of a switching valve having a switching mechanism of a ball valve type inside a switching valve main body at the front, bottom and main parts.

[0021]

According to the switching valve of the present invention, an indicator for indicating a switching state between a raw water channel for discharging raw water in a straight shape or a shower shape and a water channel for supplying water to a water purifier is arranged at the front of the outer wall of the switching valve body. Therefore, the switching state is easy to understand, and erroneous switching is eliminated.The switching mechanism inside the switching valve body uses a ball valve that opens and closes a water passage by a ball that is moved by the arm of the rotating shaft of the switching cock. With such a switching mechanism, the load in the switching operation is small and smooth switching can be performed. The switching valve of the present invention is used by being fixed to a water tap and connected to a raw water inlet of a water purifier directly connected or a stationary water purifier. To obtain purified water.

[Brief description of the drawings]

FIG. 1 is a front view of a switching valve of the present invention.

FIG. 2 is a bottom view of the switching valve of the present invention.

FIG. 3 is a cross-sectional view taken along the line SS of FIG. 1;

FIG. 4 is a vertical sectional view taken along the line AA of FIG. 3;

FIG. 5 is a vertical sectional view taken along line BB of FIG. 3;

FIG. 6 is a vertical sectional view taken along the line CC of FIG. 3;

FIG. 7 is a partially cutaway perspective view of a conventional switching valve.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Switching valve main body 22 Switching cock 23 Raw water inflow port which can be fixed to a faucet 24 Indicator 25 Water purification display window 26 Raw water shower display window 27 Raw water straight display window 28 Raw water straight discharge port 29 Raw water shower discharge port 30 Raw water water supply port 31 Seal for water purification Ball 32 Seal ball for raw water shower 33 Seal ball for raw water straight 34 Rotating shaft with arm 35 Display crank for water purification 36 Display crank for raw water shower 37 Display crank for raw water straight 38 Crank support rod 39 O-ring 40 Stop screw 41 Raw water inlet 42 Opening for raw water shower 43 Opening for water purification 44 Opening for raw water straight

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-8-75018 (JP, A) JP-A-6-178974 (JP, A) JP-A-7-150005 (JP, A) 18779 (JP, U) JP-A 4-132271 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F16K 1/00 F16K 11/00 F16K 37/00 B01D 35/04 C02F 1/28

Claims (13)

(57) [Claims] 1. A switching valve disposed between a water tap and a water purifier, the raw water inflow port being connectable to the tap, each raw water discharge port for discharging raw water as it is in a straight or shower shape, and a water purifier. It has a connectable raw water supply port, and a rotation that rotates inside the switching valve body in conjunction with the rotation of the switching cock.
It has a water channel switching mechanism that switches the water channel to each raw water discharge port or raw water water supply port using the turning shaft, and shows only the applicable state of water channel switching by the switching cock on the outer wall of the switching valve body
And interlocked with the rotation axis around an axis separate from the rotation axis.
A switching valve comprising an indicator having a display member that rotates . 2. A rotating shaft and an axis separate from the rotating shaft,
2. The device according to claim 1, wherein the device is arranged at a position separated horizontally.
Switching valve. Wherein the indicator switching valve according to claim 1 or 2 is disposed on the outer wall front portion of the switching valve body. 4. The switching valve according to claim 1, wherein the indicator is provided with a notch or a display window formed of a transparent plate for displaying a corresponding state of the water channel switching. 5. The switching valve according to claim 1 , wherein the water channel switching mechanism has a rotating shaft with an arm that is interlocked with the turning operation of the switching cock. 6. in which with the arm rotation shaft is provided by shifting the phase by 60 ° in the longitudinal direction of the rotary shaft arm 請
The switching valve according to claim 5 . 7. The switching valve according to claim 5 , wherein the indicator displays a corresponding state of water channel switching in conjunction with rotation of the rotating shaft with the arm. 8. A claim waterways switching mechanism is switched mechanism using a ball valve in which waterways are opened and closed by a ball that is moved by the arm of the arm with the rotating shaft in conjunction with selector valve
The switching valve according to any one of claims 5 to 7 . 9. 請 the rotating shaft is made of polyacetal resin
The switching valve according to any one of claims 5 to 8 . 10. The switching valve according to claim 8 , wherein the ball is made of soft rubber. 11. The switching valve according to claim 5 , wherein the indicator moves the display crank by the arm of the rotating shaft with the arm to indicate a corresponding state of the water channel switching. 12. raw water supply port switching valve according to any one of claims 1 to 11 is a freely fitting structure detachable connecting portion of the water purifier. 13. A combined body wherein a connection portion of a water purifier is connected to the raw water water supply port of the switching valve according to any one of claims 1 to 12 .