JPH0547078U - Wash water supply mechanism in sanitary washing device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] The pulsating water discharge mechanism is provided with additional functions such as flow rate adjustment to reduce the bulk of the piping space and enable powerful cleaning and massage. [Structure] A valve device is provided in a cleaning water supply system for a nozzle device for local cleaning, and a rotor 8 provided in a housing 7 of the valve device goes to the nozzle device in accordance with forward and reverse rotations.
It is possible to switch between the two supply channels 8a and 8b, and
The flow rate is adjusted by the flow passage groove 7a provided on the inner circumference of the housing and the valve block provided on the outer circumferential surface of the rotor, and pulsating water discharge from the nozzle device is enabled by forward and reverse rotation of the rotor. [Effect] With only one valve device, it is possible to supply the washing water of two systems, and at the same time, accurately adjust the flow rate and pulsating water discharge.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sanitary washing device having a local washing function, and more particularly to a washing water supply mechanism capable of accurately adjusting the washing water flow rate and pulsatingly discharging water with a single valve.

[0002]

[Prior Art]

 Conventionally, sanitary washing devices having functions such as local washing by jetting washing water and drying by blowing hot air have been widely used. In this sanitary washing device, a nozzle device for washing and a hot air fan for drying are built into the casing, and this casing is fixed to the toilet body for use.

A cleaning nozzle device is a nozzle that is connected to a cleaning water supply system including a hot water tank provided in a casing and a valve unit for opening and closing a flow path and adjusting a flow rate, and advances to a cleaning position. The most general structure is to inject cleaning water from the main body.

In the local cleaning, it is important that the cleaning water is accurately jetted to the target. Therefore, it is necessary to appropriately set the stroke of the nozzle body and the jetting pressure of the cleaning water. .. And, for the purpose of improving the cleaning function, after the nozzle body reaches its cleaning position, the nozzle can be reciprocated or swung with a small stroke to widen the cleaning area. ing.

However, in the conventional structure, only the nozzle body itself is moved, and even if the jetting point of the washing water moves and the washing area expands, the water force of the washing water does not change. For this reason, even if the range of cleaning was expanded, there was no massage effect utilizing changes in the flush water pressure, and improvement in cleaning power using changes in flow due to intermittent spouting could not be expected.

[0006] In order to solve such a problem, as disclosed in Japanese Utility Model Publication No. 1-39824, the purpose is to intermittently discharge water from the nozzle body to improve the mass surge effect and the cleaning power. There is a sanitary washing device having an intermittent water discharge mechanism as described above. This incorporates a rotor that can be rotated forward and backward by a motor in the supply path from the hot water tank to the nozzle device, enabling intermittent discharge of cleaning water while continuously connecting the flow path to the nozzle device side. It was done.

[0007]

[Problems to be solved by the device]

 According to the intermittent water discharge using the rotor as described above, the cleaning water is jetted from the nozzle body in a pulsating manner, and the cleaning power is stronger than that of the normal water discharge, and the massage effect is also obtained.

However, since the rotor only intermittently opens and closes the flow path, its function is to pulsate the water discharged from the nozzle body, and it is not possible to accurately adjust the flow rate. For this reason, as with conventional sanitary washing devices, the flow rate must be adjusted using a valve unit that incorporates an on-off valve, pressure control valve, flow rate control valve, and so on. Therefore, in addition to the valve unit, a member for intermittent water discharge is required, and the degree of freedom in assembling other members into the casing having a limited space is likely to be impaired.

As described above, when the member for intermittent water discharge is incorporated to obtain the cleaning effect and the massage effect, the problem of the piping space cannot be ignored, and the arrangement of the device in the casing is affected. It is easy to get a result.

The problem to be solved in the present invention is to suppress the bulk of the piping space by providing the pulsating water discharge mechanism with additional functions such as flow rate adjustment, etc., and to further enhance the cleaning power and the massage effect sufficiently. To do.

[0011]

[Means for Solving the Problems]

 The present invention comprises a nozzle device for ejecting cleaning water toward a local area and a supply system for supplying the cleaning water to the nozzle device, and an inflow opening through which the cleaning water flows and an outlet passage communicating with the nozzle device are provided in a housing. A sanitary washing device having a valve device provided in the supply system, wherein the valve device includes a flow path toward a washing nozzle and a cylindrical rotor, and a sliding surface between the rotor and the housing. Further, it is provided with an arcuate flow channel groove capable of continuously changing the flow channel area of the flow channel toward the cleaning nozzle.

[0012]

[Action]

 If a drive motor is provided as a drive mechanism for rotating the rotor and the rotation angle is properly controlled, the position of the inlet can be changed from the blocked state to the complete alignment with the housing flow passage groove. You can also change the opening. Therefore, the flow rate of the washing water toward the nozzle device can be changed, and the force of the washing water ejected from the nozzle device can be adjusted.

Further, when the rotor is rotated forward and backward by the drive motor at a constant cycle, the degree of matching between the inlet and the flow channel changes periodically, and the flow rate increases or decreases and the internal flow rate increases or decreases. Pulsation occurs. Therefore, the pulsating cleaning water is also ejected from the nozzle device, and pulsating water discharge is possible.

[0014]

【Example】

 FIG. 1 is a schematic view showing a wash water supply system in the sanitary washing device of the present invention, and FIG. 2 is a perspective view of an example in which the sanitary washing device is attached to the toilet body.

In the figure, the casing 1 of the sanitary washing device fixed to the toilet body 20 is provided with a toilet seat 1a and a toilet lid 1b that can be opened and closed. Inside the casing 1, a supply system for washing water to the nozzle device, a hot air fan for drying and a controller for controlling the operation of each functional unit are incorporated, and the operation of the functional unit is performed by a switch of the operation panel 1c or It is performed by a remote controller (not shown).

The nozzle device 2 includes a cylinder 2a fixed inside the casing 1 and a nozzle body 2b that is incorporated in the cylinder 2a so as to be able to move forward and backward. The tip of the nozzle body 2b is for cleaning anus and A nozzle head 2c having two kinds of ejection holes used for bidet is provided. The nozzle body 2b is mechanically connected to the output shaft of the motor 2d, and the forward / reverse rotation of the nozzle body 2b causes the nozzle body 2b to reciprocate between the storage position and the cleaning position in the casing 1.

A valve unit 3 and a hot water tank 4 connected to a water supply pipe outside the casing 1 are arranged in this order in a wash water supply system to the nozzle device 2, and these devices and the motor of the nozzle device 2 are arranged. A controller 5 is provided for controlling the operation of 2d. The valve unit 3 is provided with a solenoid valve-type on-off valve and a pressure regulating valve, and when the cleaning switch provided on the operation panel 1c is turned on, the on-off valve in the valve unit 3 opens and a constant flow rate is maintained. The water supply is sent to the hot water tank 4. The hot water tank 4 has a heater 4a for heating and a temperature sensor 4b incorporated therein, and the temperature of the washing water is set by a switch for setting the temperature of the operation panel 1c or the like, and the heating water of the heater 4a is set. The amount of heat is also controlled by the controller 5.

In the path from the warm water tank 4 to the nozzle device 2, a shift valve 6 is incorporated as a valve device for intermittent supply of cleaning water, flow rate adjustment, and switching to two system flow paths.

FIG. 3 is a schematic horizontal cross-sectional view of the shift valve 6, and FIGS. 4 and 5 are vertical cross-sectional views showing the internal structure at the position of arrows AA in FIG. 3, respectively.

The shift valve 6 has a rotor 8 that forms a flow path for washing water from the warm water tank 4 to the nozzle device 2 inside the housing 7 so as to be rotatable around its axis. Then, the cleaning water supply pipe 4c from the warm water tank 4 is connected to the outer peripheral surface of the housing 7, and the flow channel groove 7a cut into the inner peripheral surface of the housing 7 is used for this cleaning as shown in FIGS. It communicates with the water supply pipe 4c. The flow channel 7a is formed in an inferior arc shape on the inner peripheral surface of the housing 7 from the connection point with the cleaning water supply pipe 4c.

The rotor 8 is sealed inside the housing 7 by packing 7b at both ends in the axial direction, and one end thereof is connected to a rotary shaft 9a of a drive motor 9 provided as a drive mechanism. The drive motor 9 is fixed to the outside of the housing 7 by using, for example, the casing 1, and the controller 5 controls the rotation direction and rotation angle of the rotation shaft 9a and the forward and reverse rotation for pulsating water discharge, and the operation thereof is operated. Use the switch on panel 1c.

Further, the rotor 8 is provided with a first flow path 8a and a second flow path 8b which are in communication with and are not in communication with the flow path groove 7a by the rotation thereof. These first and second flow paths 8a, 8b are provided with inflow ports 8c, 8d opening toward the flow path groove 7a on the peripheral surface, and the flow paths are bent from these inflow ports 8c, 8d to extend in the axial direction. Have a route. And the 1st supply pipe 10a and the 2nd supply pipe 10b which go to the nozzle apparatus 2 are connected to the terminal end of the 1st, 2nd flow paths 8a, 8b, and each is used as a flow path for anus washing and a bidet. ..

The first flow passage 8a and the second flow passage 8b are not connected to the flow passage groove 7a to close the flow passage, and one is connected to the flow passage groove 7a and the other is connected to the inner wall of the housing 7. The positional relationship between the inflow ports 8c and 8d is determined so that they are closed and are not connected. In the illustrated example, as shown in FIG. 4A, the inlets 8c and 8d of the first and second flow paths 8a and 8b are located outside the circumferential end of the communication groove 7a. Have a relationship.

On the other hand, on the operation panel 1c, the first washing switch 1d for anus washing, the second washing switch 1e used for a bidet, the stop switch 1f for stopping the washing operation, and the flow rate of washing water are set. A flow rate adjusting switch 1g is provided for this purpose, and a pulsating water discharge switch 1h for pulsating water discharge by the shift valve 6 is incorporated. If the pulsating water discharge switch 1h is turned on while the first or second cleaning switches 1d and 1e are turned on, the controller 5 causes the rotation shaft 9a of the drive motor 9 to rotate in the forward and reverse directions at regular intervals. , The degree of matching between the inflow ports 8c and 8d of the first and second flow paths 8a and 8b and the flow path groove 7a is changed.

In the above structure, when the first washing switch 1d of the operation panel 1c is pressed, the motor 2d of the nozzle device 2 is activated to advance the nozzle body 2b to the anus washing position, and at the same time, the valve unit 3 Open the on-off valve. As a result, the water is supplied to the hot water tank 4 and the wash water that has already been heated in the hot water tank 4 is pushed out to the shift valve 6 side.

On the other hand, the shift valve 6 has the posture of the rotor 8 as shown in FIG. 4A when the first cleaning switch 1d is not turned on. At this time, any of the inlets 8c, 8d of the first and second flow paths 8a, 8b hits the inner peripheral wall of the rotor 7 and is closed, and the flow path to the nozzle device 2 side is blocked. Then, when the first cleaning switch 1d is turned on, the drive motor 9 is operated by the controller 5, and the rotary shaft 9a is rotated so that the rotor 8 rotates counterclockwise in FIG. 4 (a). As a result, as shown in FIG. 4B, the inflow port 8c of the first flow path 8a is gradually aligned with the flow path groove 7a, and the illustrated inflow port 8c is entirely included in the flow path groove 7a. The rotor 8 can rotate until the valve opening is maximized. At this time, the position of the other second flow path 8b is also changed counterclockwise, but the inlet 8d is still closed by the inner wall of the housing 7 as before. Therefore, the cleaning water from the warm water tank 4 is supplied to the nozzle device 2 only for cleaning the anus from the first supply pipe 10 a.

When the stop switch 1f is pressed after the cleaning is completed, the drive motor 9 is operated by the controller 5 and the rotary shaft 9a rotates in the direction opposite to that in the valve opening operation. That is, if the rotor 8 is rotated clockwise in the drawing from the valve open state of FIG. 4B, the inflow port 8c of the first flow path 8a will gradually come out of the flow path groove 7a, and Specifically, the valve returns to the valve closed position as shown in FIG.

Even during the valve closing operation on the side of the first flow passage 8 a, the inlet 8 c of the second flow passage 8 b remains closed by the inner wall of the housing 7, so that the second flow passage 8 b moves to the nozzle device 2. There is no supply of washing water.

FIG. 5 shows the rotating operation of the rotor 8 when the bidet cleaning water is supplied to the nozzle device 2 from the second flow path 8b.

When the second cleaning switch 1e is turned on, the rotation shaft 9a of the drive motor 9 is controlled by the controller 5 so that (a) in the figure (the closed state is shown as in (a) of FIG. 4). At, the rotor 8 is rotated clockwise. As a result, the inlet 8d of the second flow passage 8b is gradually aligned with the flow passage groove 7a, and the rotor 8 rotates to the maximum opening as shown in FIG. Since the inlet 8c of the first flow passage 8a is closed by the inner wall of the housing 7 during the period when the second flow passage 8b side is open, no wash water flows in. Therefore, the wash water from the hot water tank 4 is supplied to the nozzle device 2 as the bidet wash water only from the second supply pipe 10b.

When the stop switch 1f is pressed, the rotation shaft 9a of the drive motor 9 is rotated counterclockwise by the controller 5 in FIG. 5B. As a result, the inflow port 8d of the second flow path 8b comes to be separated from the flow path groove 7a, and the original valve closed state is restored as shown in FIG. Even after the second flow passage 8b side is closed, the inflow port 8c of the first flow passage 8a is closed by the inner wall of the housing 7, so that the wash water does not flow out to the first supply pipe 10a side.

As described above, by operating the flow rate adjusting switch 1 g during the cleaning by the first cleaning switch 1 d, the flow rate of the cleaning water to the nozzle device 1 is changed. This flow rate change is performed by controlling the rotation angle of the rotation shaft 9a of the drive motor 9. That is, when the entire inflow port 8c of the first flow path 8a is aligned with the flow path groove 7a as shown in FIG. 4B, the flow path area is maximized, and the flow rate is also maximized. On the other hand, if the rotor 8 is placed in a posture as shown in FIG. 4C so that the inflow port 8c is partially aligned with the flow channel groove 7a, the flow rate is reduced due to the restriction of the flow channel area. Therefore, by operating the flow rate adjusting switch 1g after turning on the first cleaning switch 1d, the degree of alignment between the inlet 8c and the flow path groove 7a can be adjusted, and thus the flow rate of the cleaning water supplied to the nozzle device 2 can also be adjusted. ..

Further, only by changing the rotation direction of the rotation shaft 9a of the drive motor 9 by the controller 5, it is possible to use the anal cleaning and the bidet separately.

The adjustment of the flow rate is the same in the case of supplying the wash water to the second flow path 8b used for the bidet, and as shown in FIG. It is possible to make adjustments such as reducing the flow rate by aligning with the channel groove 7a.

As described above, the openings of the respective inlets 8c and 8d of the first and second flow paths 8a and 8b can be freely set according to the rotation angle of the rotor 8, and the opening of the flow control valve can be adjusted. Not only can it perform its function, but it can also operate the on-off valve. Therefore, it is not necessary to incorporate a valve for adjusting the flow rate into the valve unit 3 provided on the upstream side of the hot water tank 4, and the size can be reduced.

Further, in addition to the switching of the flow paths and the adjustment of the flow rate, the cleaning water from the nozzle device 2 can be jetted while pulsating. This operation may be performed, for example, by turning on the pulsating water discharge switch 1h when the first washing switch 1d is turned on and washing water is being supplied to the nozzle device 2 from the first outflow passage 7c. As a result, the rotating shaft 9a of the drive motor 9 is rotated in the forward and reverse directions by the controller 5 at a constant cycle, and the rotor 8 has an axial line as shown by the arrows in FIGS. 4C and 5C. Repeatedly reciprocating around. Therefore, the flow rate of the washing water to the nozzle device 2 also changes intermittently depending on the degree of matching between the inflow ports 8c and 8d and the flow path groove 7a. Therefore, the washing water from the nozzle head 2c is repeatedly jetted with strong water and weak water, and is ejected as pulsatile artery water discharge.

Even during this pulsating water discharge, depending on the positional relationship between the inlets 8c and 8d of the first and second flow paths 8a and 8b, either the first flow path 8a side or the second flow path 8b side can be obtained. The cleaning water is supplied to the nozzle device 2 only from one side.

According to such pulsating water discharge of the wash water, the number of times it hits the local portion is increased as compared with the normal water discharge, so that the adhered matter is effectively peeled off and the washing efficiency is improved. In addition, since it has a pulsating massage effect, for example, spouting cleansing water before urination can promote defecation and can be expected to have a pleasant effect.

FIG. 6 is a schematic cross-sectional view showing another example of the shift valve 6, in which channel grooves are provided at two locations, and the first and second channels are separately connected to each of them. It is due to

In the figure, a first flow passage groove 7 c and a second flow passage groove 7 d communicating with separate wash water supply pipes 4 d and 4 e connected to the hot water tank 4 are provided on the inner peripheral wall of the housing 7. These first and second flow path grooves 7c and 7d are provided at intervals in the axial direction of the housing 7, and each has a shape as shown in FIG. 7A and 7B are vertical cross-sectional views taken along the line B-B and line C-C of FIG. 6, respectively, in which the first flow passage groove 7c is the flow passage groove 7a of the above-described embodiment. Similarly to the above, it is formed in an inferior arc shape from the connection portion with the wash water supply pipes 4d and 4e. The other second flow path groove 7d has a shape symmetrical with the first flow path groove 7c.

The rotor 8 is provided with first and second flow passages 8a and 8b, which are connected to the first and second supply pipes 10a and 10b, and are respectively connected to the first and second flow passage grooves 7c and 7d. The inflow ports 8c and 8d are opened on the peripheral surface of the rotor 8 so that they can be aligned with each other. The rotor 8 is connected to the rotation shaft 9a of the drive motor 9 as in the above example, and the controller 5 controls the rotation direction, rotation angle, and forward / reverse rotation of the rotation shaft 9a.

In the state of FIG. 7, the inlets 8c and 8d of the first and second flow paths 8a and 8b are closed by the inner wall of the housing 7, and the wash water is supplied from the hot water tank 4 to the nozzle device 2. There is no. When the first cleaning switch 1d is turned on, the rotation of the rotary shaft 9a of the drive motor 9 is controlled so that the rotor 8 rotates counterclockwise in FIG. Therefore, as shown in FIG. 8A, the inflow port 8c of the first flow path 8a comes to be aligned with the first flow path groove 7c, and the cleaning water is supplied from the first flow path 8a to the nozzle device 2. Supplied. On the other hand, as shown in FIG. 8B, the counterclockwise rotation of the rotor 8 causes the inlet 8d of the second flow passage 8b to move away from the second flow passage groove 7d, and the housing 7 It remains closed by the inner wall of the. Therefore, the washing water is not supplied from the second flow path 8b, and the washing water for anus washing is supplied to the nozzle device 2 only from the first supply pipe 10a.

Further, as shown in FIG. 9A, the flow rate can be adjusted by adjusting the rotation angle of the rotor 8 as in the above example. This adjustment is performed by adjusting the flow rate of the operation panel 1c. The switch 1g is used. Further, when the pulsating water discharge switch 1h is turned on in the state of the figure, the rotor 8 reciprocally rotates at a constant cycle and pulsating water discharge is possible, which is similar to the above example.

Further, to supply the bidet washing water through the second flow path 8b, the second washing switch 1e is turned on and the rotor 8 is rotated clockwise in FIG. As a result, the second flow path groove 7d and the inflow port 8d are aligned, and the cleaning water from the hot water tank 4 is supplied to the nozzle device 2 via the second flow path 8b. The flow rate adjustment and pulsating water discharge can be performed in exactly the same manner as in the case of using the first flow path 8a.

Further, FIG. 10 is a schematic cross-sectional view showing another example of the shift valve 6. In this example, as in the case shown in FIG. 3, while switching the flow path from one wash water supply pipe 4c to the two first supply pipes 10a and 10b toward the nozzle device 2, Pulsation can be supplied from the flow path on the side used.

In the figure, a first flow passage groove 7e and a second flow passage groove 7f communicating with the wash water supply pipe 4c are provided on the inner periphery of the housing 7 of the shift valve 6. FIG. 11 is a vertical cross-sectional view of the housing 7, and (a) and (b) of FIG. 11 correspond to the arrows D-D and EE in FIG. As shown in the figure, the first flow path groove 7e is large in the radial direction on the side of the inlet side where it connects to the wash water supply pipe 4c, and has a shorter radial length as it goes in the direction of the first supply pipe 10a on the outflow side. It has a non-uniform channel cross section. On the other hand, the second flow passage groove 7f also has the same sectional shape as the first flow passage groove 7e, but its posture is left-right symmetrical with respect to the axis of the rotor 8.

Further, as shown in FIG. 11, valve blocks 8e and 8f are provided at the portions of the rotor 8 corresponding to the first and second flow passage grooves 7e and 7f, respectively, as shown in FIG. The valve blocks 8e and 8f are attached along the peripheral surface of the rotor 8 and have a uniform wall thickness, and it is preferable to use an elastic material such as rubber for the sealing property. The circumferential lengths of the valve blocks 8e and 8f are set to be slightly larger than a quarter of the circumferential length of the rotor 8, and the first supply pipe is made to have such a dimensional relationship. 10a or the second supply pipe 10b are both closed, or only one of them is opened and the flow passage area on the flow passage side that is open is intermittently changed by forward and reverse rotation of the rotor 8 so that pulsating water discharge by the nozzle device 2 is performed. Is possible.

In the case of FIG. 11, both of the valve blocks 8e and 8f close the first outflow passage 7g and the second outflow passage 7h toward the first and second supply pipes 10a and 10b, respectively. When the rotor 8 is rotated clockwise in this state by the drive motor 9 as shown in FIG. 12, the valve block 8e separates from the first outflow passage 7g, and the other valve block 8f closes the second outflow passage 7h. The posture will remain as it is. Therefore, the cleaning water from the cleaning water supply pipe 4c is supplied only to the first supply pipe 10a via the first flow path groove 7e, and can be used for anus cleaning. On the contrary, as shown in FIG. 13, when the rotor 8 is rotated counterclockwise from the state of FIG. 11, the valve block 8f separates from the second outlet 7h, and the other valve block 8e closes the first outlet 7g. Keep up. Therefore, the cleaning water is supplied only to the second supply pipe 10b through the second flow channel 7f, and the nozzle device 2 can be used for bidet.

Here, in the state of FIG. 12, the valve block 8e is largely separated from the inner peripheral wall of the first flow passage groove 7e, and the flow passage area is opened to the maximum. Therefore, the flow rate is set to the maximum value, and if the rotor 8 is rotated counterclockwise from this state, the flow passage area is gradually narrowed and the flow rate also decreases. Therefore, by controlling the rotation angle of the rotor 8 by the controller 5, the flow rate of the washing water sprayed from the nozzle device 2 can also be adjusted. When the pulsating water discharge switch 1h is turned on, the rotor 8 reciprocates in a constant cycle. Therefore, the flow passage area of the first flow passage groove 7e is changed by the valve block 8e, and the pulsating water discharge by the nozzle device 2 becomes possible as in the above example. Such flow rate adjustment and pulsating water discharge can be performed similarly even when the state shown in FIG. 13 is set.

[0050]

[Effect of the device]

 In the present invention, one valve device provided on the downstream side of the nozzle device can not only accurately adjust the hydration of the washing water, but can also be used by spraying the washing water at a constant water pressure or switching to pulsation. be able to. For this reason, it is not necessary to add a mechanism for pulsation in addition to the valve unit in which an on-off valve and a flow control valve are integrated as in the past, and it is possible to suppress the volume of piping space in the casing and reduce the equipment Layout flexibility is improved. Further, in the case of pulsating water discharge, since the wash water repeatedly hits the local area, the adhered substances can be peeled and removed more strongly than in the case of normal water discharge, and efficient washing can be performed.

[Brief description of drawings]

FIG. 1 is a schematic view showing a wash water supply system in a sanitary washing device of the present invention.

FIG. 2 is a perspective view showing a state in which the casing of the sanitary washing device is fixed to the toilet body.

FIG. 3 is a schematic cross-sectional view showing a shift valve and its drive system.

FIG. 4 is a vertical cross section taken along the line AA of FIG.
(A) of the figure is a closed state, (b) of the figure is a state in which the opening to the first flow path is maximized, (c) of the figure is a stage of flow rate adjustment to the first flow path and It is a figure which shows reciprocating rotation of a rotor.

5 is a vertical cross-sectional view taken along the line AA of FIG.
(A) of the figure is a closed state, (b) of the figure is a state in which the opening to the second flow path is maximized, (c) of the figure is a stage of flow rate adjustment to the second flow path and It is a figure which shows reciprocating rotation of a rotor.

FIG. 6 is a schematic cross-sectional view showing another example of a shift valve together with its drive system.

7 is a diagram showing a closed state of the shift valve, wherein (a) and (b) of FIG. 7 are lines BB and C of FIG. 6, respectively.
FIG. 6 is a vertical sectional view taken along the line C in FIG.

FIG. 8 is a view showing a posture of the rotor when the first flow path side is opened, and FIG. 8A is a vertical cross-sectional view showing a positional relationship between the first flow path and the first flow path groove; FIG. 6B is a vertical cross-sectional view showing the positional relationship between the second flow channel and the second flow channel.

FIG. 9 is a view showing the swinging rotation of the rotor for flow rate adjustment and pulsating water discharge, and FIG. 9 (a) is a vertical cross-sectional view showing the positional relationship between the first flow path and the first flow path groove; FIG. 11B is a vertical cross-sectional view showing the positional relationship between the second flow path and the second flow path groove.

FIG. 10 is a schematic cross-sectional view of a shift valve showing an example in which two flow passage grooves are provided on the inner circumference of a housing and a rotor is provided with a valve block that moves in these flow passage grooves.

11 is a view showing a state in which a flow path to a nozzle device is closed by a valve block, and FIGS. 11 (a) and 11 (b) are views taken along the lines DD and EE of FIG. 10, respectively. Corresponds to the cross-sectional view according to.

12 is a state in which only the flow passage to the side of the first supply pipe is opened to the maximum flow passage area by rotating the rotor, and (a) and (b) of FIG. 12 are respectively D-D of FIG. Line and E-
It corresponds to the cross section at the position of arrow E.

13 is a state in which only the flow path to the second supply pipe side is opened up to the maximum flow path area by rotating the rotor, and FIGS. 13 (a) and (b) are respectively D-D in FIG. Line and E-
It corresponds to the cross section at the position of arrow E.

[Explanation of symbols]

 1 Casing 1c Operation Panel 1d First Wash Switch 1e Second Wash Switch 1g Flow Rate Adjustment Switch 1h Pulsating Water Discharge Switch 2 Nozzle Device 3 Valve Unit 4 Hot Water Tank 5 Controller 6 Shift Valve 7 Housing 7a Channel Groove 7b Packing 7c 1st Channel Groove 7d Second flow channel 7e First flow channel 7f Second flow channel 8 Rotor 8a First flow channel 8b Second flow channel 8c Inlet port 8d Inlet port 8e Valve block 8f Valve block 9 Drive motor 9a Rotating shaft 10a First supply pipe 10b Second supply pipe

Claims (1)

[Scope of utility model registration request] 1. A housing comprising: a nozzle device for ejecting cleaning water toward a local portion; and a supply system for supplying the cleaning water to the nozzle device, and an inflow opening through which the cleaning water flows and an outflow passage communicating with the nozzle device. A sanitary washing device in which a valve device provided in a cleaning system is disposed in the supply system, the valve device including a flow path toward a washing nozzle and a cylindrical rotor, and a sliding surface between the rotor and the housing. A washing water supply mechanism in a sanitary washing device, further comprising an arc-shaped passage groove capable of continuously changing a passage area of a passage toward the washing nozzle.