JPH0542378U - Wash water supply mechanism in sanitary washing device - Google Patents

Abstract

(57) [Summary] [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. [Arrangement] One valve device having a valve block incorporated in a plurality of flow paths for supplying water to a nozzle device for local cleaning,
This valve device is provided with a drive mechanism that allows one valve block to open while the other valve block closes it, and further causes the opened valve block to intermittently open or close or to expand or contract the flow path. The moving means is connected to the drive mechanism. [Effect] Since only one valve device can switch the washing water to the flow passages of two systems, adjust the flow rate, and switch to the pulsating water discharge, the piping space can be saved, and the degree of freedom in the layout of other devices is improved. To do.

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 adjusting the flow rate of washing water, switching to at least two channels and pulsating water discharge 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.

To address this problem, the applicant of the present application has disclosed in Japanese Patent Application No. 1-133761 for the purpose of improving the massage effect and the cleaning power by intermittently discharging water from the nozzle body. A sanitary washing device with an intermittent water discharge mechanism was proposed. This is because a rotor that is rotated by a motor is provided in the supply path from the hot water tank to the nozzle device, and the holes formed in this rotor are intermittently connected to or disconnected from the flow path to wash water. It is possible to intermittently discharge water.

[0007]

[Problems to be solved by the device]

 According to the intermittent water discharge using the rotor like this, the cleaning water is sprayed 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 opens and closes the flow path intermittently, its function is merely to pulsate the water discharged from the nozzle body, and cannot adjust the flow rate. For this reason, as with conventional sanitary washing devices, a valve unit that incorporates an on-off valve, a pressure adjustment valve, a flow rate adjustment valve, etc. must be used to adjust the flow rate. Therefore, in addition to the valve unit, a member for intermittent water discharge is required, and it is easy to impair the degree of freedom in incorporating other members into the casing of a limited space.

Further, since the nozzle device is used for cleaning the anus and for bidet, it is necessary to connect two channels to the nozzle body. For this reason, it is necessary to additionally provide a valve for switching the flow path, and the piping to the nozzle device becomes considerably complicated. Therefore, if a member for intermittently discharging water is further incorporated into such a pipe, the assembly and maintenance and inspection will be troublesome and the piping space will be bulky.

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 an additional function such as a flow rate adjustment, and further to enhance the cleaning power and the massage effect sufficiently. To do.

[0012]

[Means for Solving the Problems]

 The present invention has a nozzle device for ejecting cleaning water toward a local area and a valve block which is incorporated in a plurality of outflow passages for supplying the cleaning water to the nozzle device and is movable in a direction for opening and closing the outflow passage. In a sanitary washing device provided with a valve device provided in an outflow passage, the valve device is configured so that the valve device is driven by a drive mechanism so that the open / closed states of the plurality of valve blocks are different depending on the driving direction. A moving means for moving between the valve opening position and the valve closing position is provided for each valve block.

[0013]

[Action]

 According to the drive direction of the drive mechanism, when the moving means is driven, one valve block opens and closes, and when the other valve block keeps the flow passage closed, only one valve block opens the flow passage. Open and close. Therefore, it is possible to open and close only one of the flow paths of the plurality of systems to the nozzle device, and it is possible to switch the flow path to the nozzle device.

Further, since the moving means allows the valve block to move from the closed state to the opened state, the opening degree of the valve block can be changed by changing the operation amount of the drive mechanism. Therefore, the flow rate of the washing water toward the nozzle device can be changed, and the water force of the washing water ejected from the nozzle device can be adjusted.

Further, when the drive mechanism is reciprocated slightly at a constant cycle, the valve block sways in the closing direction and the opening direction of the flow path. Therefore, the flow rate of the washing water passing through the inside intermittently increases or decreases, causing pulsation in the internal flow. Therefore, the pulsating wash water is also ejected from the nozzle device, and pulsating water discharge is possible.

[0016]

【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 drawing, 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 which 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 incorporated in the cylinder 2a so that the nozzle body 2b can move forward and backward. 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 the washing 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 hot water tank 4 to the nozzle device 2, a shift valve 6 for intermittent supply of cleaning water, flow rate adjustment, and switching to two system flow paths is used as a valve device in this embodiment. Incorporate.

FIG. 3 is a plan view showing the shift valve 6 and its drive system, and FIG. 4 is a transverse sectional view showing the inside of the shift valve 6.

The shift valve 6 has a flow path for washing water from the warm water tank 4 to the nozzle device 2 formed in the housing 7, and has an inflow passage 7 a communicating with the warm water tank 4 at one end thereof. The other end is bifurcated to form a first outflow passage 7b and a second outflow passage 7c which are connected to the nozzle body 2a of the nozzle unit 2 for anal washing and bidet, respectively. A first valve chamber 8 and a second valve chamber 9 for opening and closing the wash water flow path and adjusting the flow rate are provided in the first and second outflow paths 7b and 7c, respectively. These first and second valve chambers 8 and 9 are hollow cylindrical shapes that block the internal flow passages of the first and second outflow passages 7b and 7c, and their lower ends have inflow holes 8a, 9a and outflow holes 8b. , 9b is open.

A first valve block 10 and a second valve block 11 that operate independently of each other are vertically slidably installed in the first and second valve chambers 8 and 9, respectively, and The blocks 10 and 11 are connected to the drive source by the cam mechanism that constitutes the moving means in this embodiment.

FIG. 5 is a plan view when these first and second valve blocks 10 and 11 are assembled in the housing 7, and FIGS. 6A and 6B are respectively AA lines in FIG. FIG. 3 is a cross-sectional view taken along the line BB of FIG.

The first and second valve blocks 10 and 11 are watertightly housed in the first and second valve chambers 8 and 9 and axially slidable valve body portions 10 a and 11 a and their upper ends. It is provided with the flanges 10b and 11b formed in the above. Further, guides 10c and 11c with which the circumferential surface of the cam is slidably contacted are erected on the upper surfaces of the respective flanges 10b and 11b. As shown in FIG. 5, these guides 10c and 11c are provided at positions displaced from the center to the left and right sides, respectively. Then, these first and second valve blocks 10 and 11 are both moved upward by compression coil springs 10d and 11d incorporated as elastic means between the lower surfaces of the respective flanges 10b and 11b and the upper surface of the housing 7. Being energized.

In order to operate the first and second valve blocks 10 and 11, as shown in FIG. 1, one drive motor 12 is provided as a drive mechanism in this embodiment. The drive motor 12 is fixed to the outside of the housing 7 by using, for example, the casing 1 and extends so that the axis of the rotary shaft 12a passes through the centers of the first and second valve blocks 10 and 11. Then, a first cam 13 and a second cam 14 which are in sliding contact with the upper surfaces of the guides 10c and 11c of the first and second valve blocks 10 and 11 and rotate are attached to the rotary shaft 12a. It should be noted that the rotating shaft 12a may be integrally formed with those corresponding to the first cam 13 and the second cam 14.

FIGS. 7A and 7B show the profiles of the first and second cams 13 and 14, respectively, which are the shapes seen from the drive motor 12. Each of the first and second cams 13 and 14 has a circle as a basic shape, and when the orthogonal coordinate axis having the center as the origin is taken, the first cam 13 has the drive surface 13a in which the fourth quadrant is cut out. have. On the other hand, the second cam 14 has the drive surface 14a in the third quadrant. In other words, the first and second cams 13 and 14 are common parts and are attached to the rotary shaft 12a so that the positions of the drive surfaces thereof are on the opposite sides, and other than these drive surfaces 13a and 14a. The sliding surfaces function as idler surfaces 13b and 14b having a uniform outer diameter.

When the first and second cams 13 and 14 having such a profile are in the postures of FIGS. 6A and 6B, the first and second valve blocks 10 and 11 are moved to the lowermost end. Push down. That is, since the first and second cams 13 and 14 are attached to the common rotating shaft 12a so as to have a relation of mutual postures as shown in the figure, the guides 10c and 11c are respectively attached to the idler surface 13b. , 14b, the first and second valve blocks 10, 11 are pushed down, and the valve bodies 10a, 11a close all the inflow holes 8a, 9a and the outflow holes 8b, 9b. Therefore, when the drive motor 12 is not operated, the flow from the inflow passage 7a to the first and second outflow passages 7b, 7c can be achieved by setting the first and second cams 13, 14 as shown in FIG. The passage is closed and the shift valve 6 closes the flow path to the nozzle device 2.

The drive motor 12 is controlled by the controller 5 described in FIG. 1, and the rotation direction and the rotation amount of the rotation shaft 12a thereof are set by the switch of the operation panel 1c.

On the operation panel 1c, a first washing switch 1d for anus washing, a second washing switch 1e used for a bidet, a stop switch 1f for stopping the washing operation, and a flow rate of washing water are set. A flow rate adjusting switch 1g is provided 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 switch 1d, 1e is on, the controller 5 causes the rotary shaft 12a of the drive motor 12 to rotate at a constant cycle on the drive surfaces 13a, 14a. Rotate forward and backward within the range of the center angle of the first and second cams 13 and 14 by sliding contact with the drive surfaces 13a and 14a of the first and second cams 13 and 14, respectively, and through the guides 10c and 11c. , 11 are reciprocally moved up and down with a minute stroke.

In the above configuration, 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 anal 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 nozzle device 2 side. On the other hand, the first and second valve blocks 10 and 11 are both closed as shown in FIGS. 6A and 6B, but only the first valve block 10 is opened when the first cleaning switch 1d is turned on. Thus, the drive motor 12 is energized.

FIG. 8 shows the opening / closing operation of the first valve block 10. FIG. 8A shows a state in which the flow path is closed by the valve body portion 10a, and FIG. 8B shows an inflow hole 8a. And the outflow hole 8b is fully opened and the maximum valve opening is set.

When the rotary shaft 12a of the drive motor 12 is rotated in the timewise direction in the drawing from the closed state of FIG. 8A, the guide 10c moves closer to the rotary shaft 12a due to the movement of the drive surface 13a. Move up. That is, the contact point of the drive surface 13a with the guide 10c moves toward the center of the first cam 13 as the drive surface 13a rotates, so that the first valve block 10 is moved by the biasing force of the compression coil spring 10d as shown in FIG. Move up as shown in (b). Therefore, the valve body 10a fully opens the inflow hole 8a and the outflow hole 8b, and the maximum flow rate of cleaning water is supplied to the nozzle device 2.

On the other hand, the second cam 14 also rotates integrally with the rotation of the rotating shaft 12a. FIG. 9 is a view showing this state, and when the first valve block 10 is opened, the rotary shaft 12a rotates clockwise in FIG. 9 as described above. Therefore, the second cam 14 rotates in the direction of the arrow indicated by the broken line in FIG. 9A, but the guide 11c only abuts on the idler surface 14b, so the second valve block 11 cannot change its position. No, it is maintained in the state shown in the figure. Therefore, when the first valve block 10 is opened, the second valve block 11 cannot open the flow path, and the cleaning water for anal cleaning is supplied to the nozzle device 2 only from the first outflow path 7b. To be done.

If the stop switch 1f is pressed after the cleaning is completed, the drive motor 12 is energized by the controller 5 and the rotary shaft 12a rotates in the direction opposite to that at the time of the valve opening operation. That is, if the rotary shaft 12a is rotated counterclockwise in the drawing from the valve open state of FIG. 8B, the guide surface 10a is pushed so that the drive surface 13a gradually increases its radial length. Therefore, the first valve block 10 is pushed into the first valve chamber 8. Therefore, finally, as shown in FIG. 8 (a), the valve body 10a closes the inflow hole 8a and the outflow hole 8b, and the washing water to the nozzle device 2 via the first outflow passage 7b. Supply is stopped.

Even during this valve closing operation of the first valve block 10, the guide 11c of the second valve block 11 remains in contact with the idler surface 14b of the second cam 14, so that the second valve block 11 is moved to the position shown in FIG. As in (a) above, the stopped state is maintained, and no washing water is supplied from the second outflow passage 7c to the nozzle device 2.

When the second cleaning switch 1e is turned on, the rotary shaft 12a of the drive motor 12 rotates counterclockwise in FIG. 9A under the control of the controller 5. As a result, the second cam 14 rotates up to 90 degrees until it takes the posture of (b) in the figure, and the second valve block 11 moves upward due to the shape of the drive surface 14a. Therefore, the inflow hole 9a and the outflow hole 9b are opened to the maximum opening, and the wash water from the hot water tank 4 is supplied to the nozzle device 2 for bidet use.

At this time, the first cam 13 that rotates integrally with the rotating shaft 12a rotates counterclockwise in FIG. 8A, but the guide 10c moves to the idler surface 13b having a uniform outer diameter. Since it just abuts, the first valve block 10 maintains the closed position as shown in the figure. Therefore, the wash water does not flow out from the first outflow passage 7b, and only the bidet wash water is supplied to the nozzle device 2.

When the stop switch 1f is pressed, the rotary shaft 12a of the drive motor 12 is rotated clockwise by the controller 5 in FIG. 9B. As a result, the guide 11c moves to the idler surface 14b side, the second valve block 11 gradually descends, and finally returns to the valve closed state of FIG. Even at this time, since the guide 10c of the first valve block 10 only contacts the idler surface 13b of the first cam 13, the first valve block 10 is maintained in the state shown in FIG. The flow path on the wash side remains closed.

As described above, by simply changing the rotation direction of the rotation shaft 12a of the drive motor 12, it is possible to use the anal cleaning and the bidet separately.

Further, when the first cleaning switch 1d is used for cleaning, by operating the flow rate adjusting switch 1g, 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 rotary shaft 12a of the drive motor 12. That is, as described with reference to FIG. 8, the first valve block 10 moves by changing the position of the contact point between the drive surface 13 a of the first cam 13 and the guide 10 c, and the drive surface 13 a is moved by the contact point of the first cam 13. Since it has a profile that monotonically moves toward the center as it rotates, the opening of the first valve block 10 increases in proportion to the rotation angle of the first cam 13. Therefore, if the rotation angle of the rotary shaft 12a by the drive motor 12 is set, the opening can be continuously changed between the fully closed position in FIG. 8A and the fully opened position in FIG. 8B.

Such a change in the opening degree is also possible in the second valve block 11 when it is used for a bidet, and a flow rate proportional to the rotation angle of the rotation shaft 12a of the drive motor 12 can be set. ..

As described above, not only the function of the opening / closing valve but also the valve opening degree by the first and second valve blocks 10 and 11 can be freely set by using the first and second cams 13 and 14. Therefore, it can also function as a flow control valve. Therefore, the valve unit 3 provided on the upstream side of the hot water tank 4 does not need to incorporate a valve for adjusting the flow rate, and can be made compact.

Further, in addition to such switching of the flow paths and 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 7b. As a result, the controller 5 causes the rotary shaft 12a of the drive motor 12 to rotate forward / reversely at a constant cycle, and the first and second cams 13 and 14 integrally rotate forward / reversely. Since the driving surface 13a of the first cam 13 has a monotonous profile that is biased toward the center, the flow rate is large when the rotation angle of the rotary shaft 12a is large and is large when the rotation angle is small. Also becomes smaller. Therefore, if the rotation angle of the rotary shaft 12a is periodically changed in a minute time and the span of this rotation angle is set within the range of the central angle (90 degrees) of the drive surfaces 13a and 14a, the rotation angle of the rotary shaft 12a is sent to the nozzle device 2. The rinsing water thus generated pulsates and is ejected from the nozzle head 2c as pulsating water discharge in which the water force changes strongly.

Even during this pulsating water discharge, since the guide 11c of the second valve block 11 only hits the idler surface 14b of the second cam 14, there is no supply of cleaning water from the second outflow passage 7c, and there is no need for cleaning the anus. Only the washing water of the above becomes a pulsating flow and is supplied to the nozzle device 2. Even when the second cleaning switch 1e is turned on and used as a bidet, if the pulsating water discharge switch 1h is turned on, the pulsating water discharge from the second outflow passage 7c can be obtained similarly.

According to such pulsating water discharge of the cleaning water, the number of times it hits the local part is increased as compared with the normal water discharge, so that the adhered matter is effectively peeled off and the cleaning 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.

[0047]

[Effect of the device]

 According to the present invention, one valve device provided on the downstream side of the nozzle device can not only switch the washing water flow path and adjust the water force, but also can switch the washing water to a device that ejects the washing water at a constant water force or pulsates. be able to. Therefore, it is not necessary to add a mechanism for pulsation in addition to the valve unit in which the on-off valve and the flow rate adjusting valve are integrated as in the past, and it is possible to suppress the bulk of the piping space in the casing, and The freedom of layout is improved. Further, in the case of pulsating water discharge, since the cleaning water repeatedly hits the local area, the adhered substances can be removed more strongly than in the case of normal water discharge, and efficient cleaning becomes possible.

[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 plan view showing a shift valve and its drive system.

FIG. 4 is a schematic cross-sectional view showing the inside of a shift valve.

FIG. 5 is a schematic plan view of the shift valve housing in which the first and second valve blocks are incorporated.

FIG. 6 is a view showing the assembly of the first valve block and the second valve block into the housing, in which FIG.
3 is a vertical sectional view taken along the line AA of FIG. 3, and FIG.

7A and 7B are diagrams showing the shape of a cam and its arrangement posture, in which FIG. 7A shows the first cam, and FIG. 7B shows the second cam.

FIG. 8 is a view showing the movement of the first valve block due to rotation of the first cam, in which (a) of the figure is a valve closed state and (b) of the figure is a longitudinal sectional view showing a fully open state. .

FIG. 9 is a view showing a movement of a second valve block due to rotation of a second cam, in which (a) of the figure is a valve closed state and (b) of the figure is a longitudinal sectional view showing a fully open state. .

[Explanation of symbols]

 1 Casing 1d 1st washing switch 1e 2nd washing switch 1g Flow rate adjusting switch 1h Pulsating water discharge switch 2 Nozzle device 3 Valve unit 4 Hot water tank 5 Controller 6 Shift valve (valve device) 7 Housing 7a Inflow passage 7b 1st outflow passage 7c No. 2 Outflow path 8 1st valve chamber 8a Inflow hole 8b Outflow hole 9 2nd valve chamber 9a Inflow hole 9b Outflow hole 10 1st valve block 11 2nd valve block 12 Drive motor (drive mechanism) 13 1st cam (moving means) 14 Second cam (moving means)

Claims (1)

[Scope of utility model registration request] 1. A nozzle device for ejecting cleaning water toward a local area, and a valve block incorporated in a plurality of outflow passages for supplying the cleaning water to the nozzle device and movable in a direction for opening and closing the outflow passage, respectively. In a sanitary washing device having a valve device provided in an outflow passage, the valve device is opened by opening the valve block such that the valve block is driven by a drive mechanism so that the open / closed states of the plurality of valve blocks differ from each other depending on the driving direction. A wash water supply mechanism in a sanitary washing device, which comprises moving means for moving between a valve position and a valve closing position for each valve block.