JP6479529B2 - Flow path switching device provided with rotation display means and water purifier - Google Patents

Description

  According to the present invention, the valve chamber is provided with one inlet and a plurality of outlets, each of the plurality of outlets being open in the valve chamber and being capable of flowing through the outlet. A valve body which can be switched to an impossible closed state is provided, and one of the plurality of valve bodies makes the outlet open, and the other valve makes the outlet closed. Thus, the moving operation means comprising a shaft member provided with a cam portion for moving each of the valve bodies corresponding to each of the respective valve bodies, and is formed in a cylindrical shape, according to the rotation of the shaft member And a rotary display unit for displaying outlet information indicating the outlet that has been opened by the movement operation unit.

  Conventionally, as a water purifier equipped with a flow path switching device of this type, as disclosed in Patent Document 1 and Patent Document 2, when attached to a tap of a water tap, raw water supplied from the water tap flows inside It is known to be configured to switch the flow path of More specifically, the water purifier switches the flow path so that the raw water is allowed to flow through the filtration unit and discharged as clean water, the raw water is discharged as it is, and the raw water is discharged in the form of a shower. It is configured to be switchable.

  Generally as a structure of such a flow-path switching apparatus, the lever is connected with the member which drives a valve body, and the system which switches a flow path by rotatingly operating a lever is common. An example of the lever in this system is shown by reference numeral 13 in FIG. 1 of Patent Document 1 and Reference numeral 15 B in FIG. 3 of Patent Document 2. This lever is provided at the lateral end of the water purifier, as seen from the front, of the water purifier in a state connected to the tap of the water supply so that the user can turn it by tilting it to the front side or back side. Configured

  Further, in Patent Document 1, the rotary display means printed with characters indicating the switching state is fixed to the shaft portion of the lever, and the user flows by aligning the characters with the marks engraved on the water purifier body. A path can be switched and a selected flow path can be confirmed. Moreover, in patent document 2, one part of the rotation display means fixed to the root of the lever was made to be able to be seen from the small window provided in the upper surface near the lever of the water purifier main body, and some selected flow paths could be confirmed. .

  In addition, as the structure around the lever, as shown in Patent Document 3, it is a small for confirming the rotary display means in front of the water purifier so that the user can easily distinguish it by looking at the selected flow path at first glance. There is a configuration provided with a window. In this configuration, the axis supporting the rotation display means is provided along the lateral direction, and another operation axis is provided parallel to the axis. The operating shaft is provided so as to rotate in conjunction with the shaft of the rotation display means, and levers of the both ends supported type are provided at both ends thereof. With such a configuration, the rotation display means is rotated by the rotation operation by the lever.

Japanese Patent Application Laid-Open No. 07-116657 JP 2004-346964 A JP, 2013-154334, A

  In the flow channel switching devices of Patent Documents 1 and 2, since the rotary display means is fixed to the root of the lever, the rotary display means can not be enlarged excessively, and the displayed characters can not be enlarged. . That is, there is room for improvement in the visibility of the rotary display means. In addition, when the user extends the hand from the front and operates the lever, the hand that operates the lever makes it difficult to see the rotary display means, and it may be necessary to shift the viewpoint and look into it in order to check the selected flow path. And there is room for improvement in terms of visibility.

  Further, in the structure of the flow path switching device disclosed in Patent Document 3, a valve shaft provided with a cam portion as a member for driving the valve body and a shaft supporting the rotation display means are provided in parallel. It is configured to rotate in conjunction with a spur gear. For this reason, at least a valve shaft and a shaft for supporting the rotation display means are provided in parallel, and a space for providing a plurality of spur gears is required, and there is a problem that the flow path switching device is enlarged. In addition, the number of parts is increased and the structure is complicated, so that the manufacturing cost is increased.

  Therefore, an object of the present invention is to realize a flow path switching device capable of downsizing in the horizontal direction while making the rotary display means more excellent in visibility than the conventional one. Another object of the present invention is to realize a flow path switching device and a water purifier with reduced manufacturing cost while suppressing the number of parts and further reducing the size in the vertical direction and horizontal direction while having excellent visibility of the rotary display means. is there.

In order to achieve the above object, the characterizing feature of the flow path switching device according to the present invention is that the valve chamber is provided with one inlet and a plurality of outlets, and each of the plurality of outlets is provided in the valve chamber. A valve body positioned and switchable between an open state capable of flowing through the outlet and a closed state not capable of flowing therethrough;
A cam portion for moving each of the valve bodies such that one of the plurality of valve bodies opens the outlet and the other valve closes the outlet; Movement operation means comprising a shaft member provided corresponding to each of the respective valve bodies;
And a rotary display unit for displaying outlet information indicating the outlet which is formed in a cylindrical shape, is rotated according to the rotation of the shaft member, and is opened by the movement operation unit. A road switching device,
The rotation axis of the rotation display means is orthogonal to the axis of the shaft member,
The rotation display means is disposed so as to partially overlap the shaft member when viewed in the vertical direction.

  According to the above-mentioned characteristic configuration, the rotary display means is such that the rotation axis of the rotary display means is orthogonal to the axis of the shaft member and partially overlaps the shaft member when viewed in the vertical direction. That is, the rotation display means and the shaft member can be made compact by effectively utilizing the space existing in the vertical direction with respect to the shaft member. Further, since the rotation axis of the rotation display means is different from the axial center direction of the shaft member, the diameter of the cylindrical rotation display means can be increased independently of the diameter of the shaft member, and the outlet information can be obtained. It can be displayed large. Therefore, it is possible to realize a flow path switching device capable of downsizing in the horizontal direction while making the rotation display means more excellent in visibility than in the past.

  Another characteristic configuration is that the rotation display means is formed in a frusto-conical shape whose diameter decreases with distance from the shaft member along the rotation axis.

  According to the above-mentioned characteristic configuration, the surface area when the rotary display means is viewed from the vertical direction becomes larger than when the rotary display means is formed in a cylindrical shape. Therefore, when the user looks into the flow path switching device in the vertical direction, it is easy to visually recognize the outlet information displayed on the rotation display means. Moreover, compared with the case where it forms in a cylindrical shape, the size of the perpendicular direction of a flow-path switching apparatus can be restrained. That is, it is possible to realize a flow path switching device capable of downsizing in the vertical direction and the horizontal direction while making the rotation display means more excellent in the visibility than in the past.

A further characterizing feature is that the shaft member comprises a projection that projects relative to the rotation display means.
The rotation display means includes a groove into which the protrusion is inserted,
The groove portion is formed so as to rotate the rotation display means by changing the contact position between the protrusion portion and the groove portion in accordance with the rotation of the shaft member.

  According to the above-mentioned characteristic configuration, the shaft member includes the projection and the rotation display means includes the groove, so that the rotation display means has an axis perpendicular to the axis of the shaft member in response to rotation of the shaft member. It will rotate as the center. That is, in the case where a general gear is used as the conversion mechanism of the rotational direction (for example, when a bevel gear is used), the number of parts is reduced and the manufacturing cost is reduced while the size is reduced in the vertical and horizontal directions. A channel switching device can be realized.

Another characteristic configuration is that the rotation display means is
A large diameter portion of a shape obtained by cutting a large diameter frusto-conical shape by a plane along the rotation axis and a frusto-conical shape having a diameter smaller than the large diameter portion around the rotation axis viewed in the rotation axis direction A body portion including a combination of a small diameter portion cut in a plane along the rotation axis;
The outer circumferential surface of the large diameter portion is used for displaying the outlet information.

  According to the above configuration, the rotation display means comprises the large diameter portion which is a part of the large diameter truncated cone shape and the small diameter portion which is a part of the small diameter truncated cone shape, and the large diameter portion is an outlet. Used for displaying information. Therefore, the size of the rotation display means can be miniaturized by making the small diameter portion not used for displaying the outflow port information smaller while displaying the outflow port information largely in the large diameter portion. Therefore, the space required for storing the rotation display means can be reduced, and a more miniaturized flow path switching device can be realized while securing visibility.

According to a further feature, a U-shaped grip portion is coupled to both ends of the shaft member so as to rotate integrally.
The rotation display means is disposed at the hollow portion of the grip portion.

  According to the above characteristic configuration, the grip portion is formed in a U-shape, and the rotation display means is disposed in the hollow portion. Therefore, it is possible to make the holding portion easy to hold for the user, and to suppress the increase in the size of the flow path switching device as compared with the conventional case where the rotation display means is provided coaxially with the shaft member. That is, it is possible to realize a more miniaturized flow path switching device while ensuring the convenience of the user.

  As a water purifier provided with the flow-path switching apparatus as described in any one of Claims 1-5, the said several outflow outlet flows the purification | cleaning part, the purified water outflow port which flows out the purified water, and raw water It is preferable that the raw water outlet for direct current outflow to the outside without purifying the water and the shower outlet for outflowing in a shower shape without purifying the raw water are connected in communication.

Side view of water purifier Bottom view of water purifier Principal part disassembled perspective view of water purifier Side cross section of water purifier Plane sectional view of water purifier Side view of main parts constituting the flow path switching device Top view of main parts constituting the flow path switching device Front view showing the main body of the rotation display means Rear view showing the main body of the rotation display means Side cross-sectional view of the water purifier to show the operation of the flow path switching device Plan sectional view of the water purifier for showing the operation of the flow path switching device Diagram showing the operation of the flow path switching device Diagram showing the operation of the flow path switching device Diagram showing the operation of the flow path switching device

1. Schematic Configuration of Channel Switching Device Hereinafter, an example of an embodiment using the channel switching device CS according to the present invention will be described with reference to the drawings. In this embodiment, as shown in FIG. 1, it attaches to the faucet J of a water supply, and demonstrates the water purifier which performs flow-path switching to the purification part 400 as an example.

  FIG. 1 shows a side view of a water purifier provided with a flow path switching device CS. Below, let the horizontal direction in the side view of a water purifier be "width direction W", let a vertical direction be "height direction H", and let paper surface depth direction be "depth direction D." In the present embodiment, the water purifier is disposed such that the width direction W and the depth direction D coincide with the horizontal direction, and the height direction H coincides with the vertical direction.

  As shown in FIGS. 1 and 4, the flow path switching device CS is provided with one inlet 2 and a plurality of outlets 3 in the valve chamber 1, and each of the plurality of outlets 3 is provided in the valve chamber 1. A valve body 5 is provided which can be positioned to open and close the outlet 3. As shown in FIG. 3 and FIG. 4, the inlet 2 is an opening through which raw water (tap water) flows, and is provided in the upper part of the valve chamber 1. The inlet 2 is connected to a tap water tap J via a faucet mounting ring 41.

  A pressing member 46 shown in FIG. 3 is provided below the inflow port 2 to form three small valve chambers in the valve chamber 1, and each small valve chamber is provided with elastic biasing means 8 and a valve body 5. . The pressing member 46 has a through hole at the top, and is configured to allow the raw water flowing in from the inlet 2 to flow into the valve chamber 1.

  As shown in FIGS. 3 and 5, three outlets 3 are provided in this embodiment. Specifically, the raw water is passed through the purification unit 400 and the clean water outlet 3A for discharging as clean water, the raw water outlet 3B for discharging the raw water to the outside in a direct current form, and the raw water is discharged in a shower shape , And the inlet 2 is connected in communication with each of the outlets 3C. The purification unit 400 is a cylindrical member incorporating a filtration cartridge for purifying raw water, and is disposed on one side in the width direction W of the flow path switching device CS. The purification unit 400 is connected to the valve chamber 1 so as to be able to flow through the purification unit attaching / detaching member 47 configured to be insertable into and removable from the side surface of the casing 6. By providing the purification portion attaching / detaching member 47, the purification portion 400 can be easily removed from the valve chamber 1, and maintenance of the purification portion 400 and the flow path switching device CS is facilitated.

  As shown in FIGS. 3 and 5, a ball made of metal (SUS) is used as the valve body 5. The valve body 5 has a state in which the outlet 3 is closed (closed state) so that fluid flowing in from the inlet 2 can not flow, and a state in which the outlet 3 is opened so that fluid can flow (open state) And can be switched freely. The valve body 5 is provided to be paired with each outlet 3. The valve body 5 is normally urged toward the outlet 3 to close the outlet 3 (normally closed) by a spring which is an elastic biasing means 8.

  The valve body pressing position in which the valve body 5 is pressed to open the flow outlet 3 in each of the outlet side flow passages 9 connected to the respective flow outlets 3 and the flow outlet 3 without pressing the valve body 5 The pressing member 10 is movably held at the valve body non-pressing position where the valve is closed. Specifically, as the push member 10, a rod-like push rod held movably along the flow path direction in the linearly formed outlet side flow path 9 is used. Similarly to the valve body 5, the pushing member 10 is also provided to be paired with each outlet 3. That is, in the present embodiment, one valve body 5 and one push member 10 are provided at each outlet 3.

  In the flow path switching device CS, the outlet side flow path 9 corresponding to one of the plurality of valve bodies 5 is opened against the elastic biasing force of the elastic biasing means 8 and the other (2 From the shaft member 11 provided with cam portions 11A corresponding to the respective valve bodies 5 for moving the respective valve bodies 5 so that the outlet side flow path 9 corresponding to the valve body 5 is in a closed state The moving operation means 100 is provided. Specifically, in the movement operation means 100, the cam portion 11A alternatively contacts any one of the plurality of push members 10 depending on the rotation angle of the shaft member 11 around the axis 11a, and the cam portion 11A When the push member 10 in contact with the valve body 10 moves to the valve body pressing position, the valve body 5 is opened. More specifically, the cam portions 11A are provided around the axial center 11a of the shaft member 11 so as to have different phases. The shaft member 11 is rotatably supported by the lower surface of the casing 6 via the fixed support member 48, as shown in FIG. The shaft member 11 is provided such that the shaft center 11 a is in the horizontal direction.

  In the present embodiment, the plurality of pressing members 10 are arranged in parallel at the same position in the height direction H and parallel to each other in the horizontal direction. The shaft members 11 of the movement operation means 100 are disposed at positions separated from the pressing members 10 so as to be orthogonal to the axes of the pressing members 10 in the horizontal plane.

  The movement operation means 100 is configured to be able to turn the shaft member 11 by using the grip portion 300 connected to the shaft member 11 by the user.

  The flow path switching device CS is formed in a cylindrical shape, rotates according to the rotation of the shaft member 11, and displays the outlet information i indicating the outlet 3 in which the valve body 5 is opened by the movement operation means 100. And a rotation display means 200 for the user. More specifically, as shown in FIGS. 2 to 7, the rotation display means 200 is provided with a hollow main body portion 21 which is partially formed in a truncated cone shape with different diameters. On the outer peripheral surface of the main body portion 21, characters of "clean water", "raw water", and "shower" are displayed as the outlet information i. Each of “clean water”, “raw water”, and “shower” indicates a state in which raw water flowing in from the inlet 2 flows out from the purified water outlet 3A, the raw water outlet 3B, and the shower outlet 3C. These characters are displayed in a form that can be visually recognized by the user by, for example, sticking a stamp on the main body 21 or a sticker on which the characters are printed.

  In the present embodiment, as shown in FIG. 4, the small window 50 is provided on the upper surface in the height direction H of the casing 6 that accommodates the rotation display means 200, and the user can increase the height through the small window 50. By looking at the rotary display means 200 from above in the direction H, the outlet information i displayed on the main body 21 of the rotary display means 200 can be visually recognized. The small window 50 is a plate-like member made of a transparent member such as plastic and provided parallel to the upper end T in the vertical direction of the main body 21 of the rotation display means 200. The outlet information i visible through the small window 50 is switched by the rotation of the main body 21 in response to the rotation of the shaft member 11 by the operation of the grip 300 of the user.

  When the flow path switching device CS rotates the shaft member 11 using the grip portion 300 provided in one direction in the width direction W, an axis perpendicular to the axis 11 a of the shaft member 11 when the rotation display means 200 is operated. It is configured to rotate around the That is, the rotation direction of the shaft member 11 and the rotation direction of the rotation display means 200 are configured to be different.

  In such a configuration, the flow path switching device CS suppresses the number of parts of the flow path switching device CS while ensuring the visibility when the user looks at the rotary display means 200 from above in the vertical direction. It is characterized in that the enlargement of the size in the horizontal direction is suppressed. Below, the detailed structure regarding the rotation display means 200 of the flow-path switching apparatus CS is demonstrated.

2. Detailed Configuration 2-1. Configuration of Shaft Member As shown in FIGS. 3 to 5, the shaft member 11 includes a cam portion 11 </ b> A for pressing the push member 10. Furthermore, the shaft member 11 is provided with a protrusion 11 B that protrudes with respect to the rotation display means 200. The protrusion 11B is formed in a rod shape orthogonal to the axial center 11a, and is provided at a position not overlapping any of the cams 11A in the axial center 11a direction. Further, in the shaft member 11, the cam portion 11A is provided on the side of the pressing member 10, whereas the protrusion 11B is provided so as to project on the opposite side to the pressing member 10.

  More specifically, the cam portions 11A are provided at equal intervals in the direction of the axis 11a of the shaft member 11 as shown in FIG. 7, and at 60 ° around the axis 11a as shown in FIG. The phases are provided to be different. The cam portions 11 </ b> A are each formed in a convex shape that protrudes in a direction orthogonal to the axial center 11 a of the shaft member 11.

  Further, as shown in FIG. 5, the protrusion 11 </ b> B is provided on the shaft member 11 at a position different from the plurality of cams 11 </ b> A in the axial center 11 a direction. More specifically, the protrusion 11B is provided at a position different from the rotation axis 21a of the main body 21 of the rotation display means 200 in the direction of the axis 11a. In addition, the protruding portions 11B are provided so that the phases of all the cam portions 11A are different around the axis 11a.

2-2. Configuration of Gripping Portion As shown in FIGS. 10 and 11, a U-shaped gripping portion 300 is provided at both ends 11 e of the shaft member 11. As shown in FIG. 3, the grip portion 300 includes a U-shaped lever 31 and a hollow portion 32. The lever 31 has connecting portions for connecting to both ends 11 e of the shaft member 11 at both end portions of the U-shape, and is connected to both ends 11 e of the shaft member 11. With this configuration, as shown in FIG. 1, when the user operates the lever 31 in the height direction H, the shaft member 11 integrally pivots around the shaft center 11 a.

2-3. Configuration of Rotational Display Means As shown in FIGS. 8 and 9, the rotational display means 200 is provided on the inner surface of the main body portion 21 which is hollow and formed in a truncated cone shape with a partially different diameter, and the main body portion 21. It comprises a groove 22. As shown in FIG. 6, the main body portion 21 is formed in a truncated cone shape in which the diameter decreases with distance from the shaft member 11 in the direction of the rotation shaft 21 a. With such a configuration, the area of the main body 21 where the outlet information i is displayed is enlarged, and the visibility when the user looks into the flow path switching device CS from above in the height direction H is secured. .

  More specifically, the main body portion 21 of the rotary display means 200 has a large diameter conical shape in a plane along the rotation axis 21a around the rotation axis 21a when viewed in the direction of the rotation axis 21a (axial center of the body portion 21) A large diameter portion 21A of a cut shape and a small diameter portion 21B of a shape obtained by cutting a truncated cone having a diameter smaller than the large diameter portion along a plane along the rotation axis 21a are combined. Moreover, the outer peripheral surface in the radial direction outer side of the large diameter part 21A is used for the display of the outflow port information i.

  The display area of the outlet information i is equally divided according to the number of the plurality of outlet information i to be displayed in the circumferential direction on the outer peripheral surface of the large diameter portion 21A in the radial direction, and the outlet information i is Is displayed. In the present embodiment, the large-diameter portion 21A is divided into three display regions in units of 60 ° in the circumferential direction 180 °, and the characters “clean water”, “raw water” and “shower” as outlet information i in each display region Is displayed.

  The small diameter portion 21B is formed such that the outer diameter d2 is smaller than the outer diameter d1 of the large diameter portion 21A. As described above, in the large diameter portion 21A, the size of the rotation display means 200 is reduced by reducing the outer diameter d2 of the small diameter portion 21B while increasing the outer diameter d1 to display the outlet information i large. The height direction H of the casing 6 which accommodates the rotation display means 200 can be suppressed.

  The rotation display means 200 is provided with a groove 22 on the inner surface of the main body 21 as shown in FIG. The groove 22 includes an outer wall 22B forming an outer peripheral surface of the main body 21, and a side wall 22A and a side wall 22C extending radially inward from the outer wall 22B. The side wall 22A and the side wall 22C are provided in parallel. The rotation display means 200 rotates around the rotation shaft 21a by sliding between two opposing wall portions (side wall portion 22A and side wall portion 22C) and the projection portion 11B of the shaft member 11 instead of the gear. Configured

  The protrusion 11B of the shaft member 11 is inserted between the side wall 22A and the side wall 22C in the groove 22 as shown in FIGS. The groove portion 22 is formed to rotate the rotation display means 200 by changing the contact position between the protrusion portion 11B and the groove portion 22 in accordance with the rotation of the shaft member 11.

  Specifically, the main body portion 21 is formed in a truncated cone shape of a hollow structure in which the side close to the shaft member 11 is an opening, and the side separated from the shaft member 11 is a bottom. The groove 22 has a U-shape open on the inner side in the radial direction as viewed in the direction of the rotation shaft 21a on the inner surface of the main body 21, as shown in FIG. 9, from the inner wall surface of the main body 21 toward the shaft member 11. It is formed in a protruding form. More specifically, the main body 21 rotates in the circumferential direction by sliding of the protrusion 11B of the shaft member 11 with respect to the side wall 22A and the side wall 22C.

  As shown in FIGS. 12 to 14, when the groove 22 rotates the shaft member 11 within the movable range, at least the tip of the protrusion 11B abuts the inner peripheral surface of the groove 22, and the outer peripheral surface of the side wall 22A. And notch part 23A, 23C is provided so that the outer peripheral surface of side wall part 22C may not be contacted. The pivoting operation by the projection 11B and the groove 22 will be described later.

3. Arrangement As shown in FIGS. 6 and 7, the rotation axis 21 a of the rotation display means 200 is orthogonal to the axis 11 a of the shaft member 11. In the present embodiment, as shown in FIG. 6, the rotation display means 200 is disposed to face the push member 10 with the shaft member 11 interposed therebetween, and as shown in FIG. 7, the rotation shaft 21a of the rotation display means 200. Is provided at a central position in the direction of the axial center 11 a of the shaft member 11. In addition, as shown in FIG. 4, the main body portion 21 abuts against the inner wall surface of the casing 6 and the shaft member 11 so that the position in the height direction H and width direction W direction is fixed, and the rotation shaft 21a is It is configured to rotate as a center.

  Further, the rotation display means 200 is disposed so as to partially overlap with the shaft member 11 when viewed in the height direction H. More specifically, a part of the rotation display means 200 overlaps with the shaft member 11 when viewed from above in the height direction H of the shaft member 11. As shown in FIG. 6, the rotation axis 21a of the rotation display means 200 is inclined to be positioned above the height direction H (vertical direction) as it is separated from the pressing member 10 in the width direction W (horizontal direction).

  As shown in FIG. 11, a hollow portion 32 is formed between the lever 31 and the shaft member 11 in the width direction W. The rotation display means 200 is disposed in the hollow portion 32 of the grip portion 300. With such a configuration, an increase in the area occupied by the rotary display means 200 and the grip portion 300 in the width direction W is suppressed.

  The shaft member 11 is configured to be rotatable around the width direction W (horizontal direction). The rotation angle of the shaft member 11 is in the width direction W (horizontal direction in order to prevent the cam portion 11A of the shaft member 11 from physically interfering with the rotation display means 200 and to make the design of the rotation display means 200 relatively easy. It is desirable to keep around ± 70-80 ° with respect to the direction). Further, in the present embodiment, in a state where the movable range of the grip portion 300 is at the maximum height in the height direction H (vertical direction), it does not cover the upper surface in the vertical direction of the rotary display means 200 in the vertical direction. It is set to. Specifically, it is possible to rotate within a range of ± 60 ° with respect to the width direction W (horizontal direction), a total range of 120 °. With such a configuration, it is possible to realize a water purifier excellent in visibility regardless of the position of the grip portion 300.

  In the present embodiment, the main body portion 21 of the rotation display means 200 is configured to rotate 180 ° in the circumferential direction of the rotation shaft 21a in conjunction with the rotation of the shaft member 11 by 120 °. That is, the main body portion 21 is configured to rotate 1.5 times the rotation angle of the shaft member 11.

4. Description of Operation The rotation operation of the rotation display means 200 when the user operates the grip portion 300 to rotate the shaft member 11 will be described using FIGS. 12 to 14. FIG. 12 shows the case where the gripping portion 300 is operated to the highest position in the height direction H within the movable range, and FIG. 13 shows the case where the middle position in the height direction H is operated in the movable range. FIG. 14 shows the case where the grip portion 300 is operated to the lowest position in the height direction H.

  As shown in FIGS. 12A and 12B, at the highest position in the height direction H (the position rotated by + 60 ° with respect to the horizontal direction), the protrusion 11B contacts the side wall 22C by the notch 23C. The tip of the projection 11B abuts on the outer wall 22B without doing so.

  When the rotational angle of the shaft member 11 is made close to the horizontal direction, the position of the protrusion 11B moves radially inward in the groove 22 and, as shown in FIGS. 13 (a) and 13 (b), The tip contacts the side wall 22A.

  Furthermore, when the rotation angle of the shaft member 11 is lowered from the horizontal direction, as shown in FIGS. 14A and 14B, the lowest position in the height direction H (rotation by -60 ° with respect to the horizontal direction In the position), the tip end of the protrusion 11B abuts on the outer wall 22B without the protrusion 11B coming into contact with the side wall 22A due to the notch 23A.

  As described above, the rotation direction of the shaft member 11 is converted into the rotation direction of the rotation display means 200 with a small number of parts, with the projection 11B provided on the shaft member 11 and the groove 22 provided on the rotation display means 200. , And the rotation display means 200 can be rotated. Further, it is possible to realize the flow path switching device CS in which the number of parts is reduced and the size is reduced in the vertical direction and the horizontal direction while the manufacturing cost is reduced while the visibility of the rotary display means 200 is excellent.

[Another embodiment]
(1) In the said embodiment, although the cam part 11A of the shaft member 11 pressed the push member 10 and the valve body 5 was indirectly pressed and moved by 10, the cam part 11A showed an example. It does not matter as a structure which the axial member 11 directly presses and moves the valve body 5 not via the pushing member 10.

(2) In the above embodiment, an example in which the rotation display means 200 is formed in a truncated cone shape is shown, but the rotation display means 200 may be a rotating body, for example, may be formed in a cylindrical shape I do not care.

(3) In the above embodiment, the shaft member 11 includes the protrusion 11B, the rotation display unit 200 includes the groove 22, and the rotation display unit 200 is rotated by the contact between the protrusion 11B and the groove 22. However, for example, a general gear (for example, bevel gear) may be used between the shaft member 11 and the rotation display means 200 as a conversion mechanism of the rotation direction.

(4) In the above embodiment, an example in which the outer diameters of the large diameter portion 21A and the small diameter portion 21B of the main body portion 21 of the rotary display means 200 are different has been described. However, the large diameter portion 21A and the small diameter portion 21B The outer diameters may be the same.

(5) In the above embodiment, an example in which the grip portion 300 is formed in a U-shape and includes the both-end grip lever 31 connected to both ends 11 e of the shaft member 11 has been described. The lever 31 of 300 is not limited to such a shape, and may be a one-sided grip type connected to one end of the shaft member 11.

  An object of the present invention is to realize a flow path switching device which can be downsized in the horizontal direction while making the rotary display means of the present invention superior in visibility to the conventional one. A further object of the present invention is to effectively use the flow path switching device and the water purifier while reducing the number of parts and reducing the size in the vertical direction and the horizontal direction while reducing the number of parts while having excellent visibility of the rotary display means. It is possible.

1: valve chamber 2: inlet 3: outlet 5: valve 11: shaft 11A: cam 11B: protrusion 11 a: shaft 11 e: both ends 21 A: large diameter 21 B: small diameter 21 a: rotary shaft 22: Groove portion 32: hollow portion 100: movement operation means 200: rotation display means 300: grip portion CS: flow path switching device D: depth direction (horizontal direction)
H: Height direction (vertical direction)
W: Width direction (horizontal direction)
d1: outer diameter of large diameter portion d2: outer diameter of small diameter portion i: outlet information

Claims (6)

The valve chamber is provided with one inlet and a plurality of outlets, and each of the plurality of outlets is located in the valve chamber and can flow through the outlet in an open state and can not flow in a closed state. And a freely switchable valve body,
A cam portion for moving each of the valve bodies such that one of the plurality of valve bodies opens the outlet and the other valve closes the outlet; Movement operation means comprising a shaft member provided corresponding to each of the respective valve bodies;
And a rotary display unit for displaying outlet information indicating the outlet which is formed in a cylindrical shape, is rotated according to the rotation of the shaft member, and is opened by the movement operation unit. A road switching device,
The rotation axis of the rotation display means is orthogonal to the axis of the shaft member,
The flow path switching device in which the rotation display means is disposed so as to partially overlap the shaft member when viewed in the vertical direction.   The flow path switching device according to claim 1, wherein the rotation display means is formed in a truncated cone shape whose diameter decreases along with the rotation axis as it is separated from the shaft member. The shaft member includes a protrusion which protrudes with respect to the rotation display means;
The rotation display means includes a groove into which the protrusion is inserted,
The said groove part is formed so that the said rotation display means may be rotated because the contact position of the said projection part and the said groove part changes according to rotation of the said shaft member. Flow path switching device. The rotation display means is
A large diameter portion of a shape obtained by cutting a large diameter frusto-conical shape by a plane along the rotation axis and a frusto-conical shape having a diameter smaller than the large diameter portion around the rotation axis viewed in the rotation axis direction A body portion including a combination of a small diameter portion cut in a plane along the rotation axis;
The flow path switching device according to any one of claims 1 to 3, wherein an outer peripheral surface of the large diameter portion is used to display the outflow port information. A U-shaped grip portion is connected to both ends of the shaft member so as to rotate integrally.
The flow channel switching device according to any one of claims 1 to 4, wherein the rotation display means is disposed in the hollow portion of the grip portion. It is a water purifier provided with the flow-path switching apparatus as described in any one of Claims 1-5, Comprising:
The plurality of outlets are a purified water outlet through which the purified water flows through the purification unit and flows out the purified water, a raw water outlet through which the direct current flows out to the outside without purifying the raw water, and a shower without purifying the raw water Water purifier connected in fluid communication with the shower outlet that flows

Images