JP2600836Y2 - Sanitary washing equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary washing apparatus having a local washing function, and more particularly to a sanitary washing apparatus capable of controlling the flow rate of washing water, switching to at least two flow paths, and pulsating spouting water with a single valve. And a sanitary washing device .

[0002]

2. Description of the Related Art Sanitary washing apparatuses 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, a hot air fan for drying, and the like are incorporated in a casing, and this casing is fixed to the toilet body so that it can be used.

A nozzle unit for washing is connected to a hot water tank provided in a casing and a supply system for washing water having a valve unit for opening and closing a flow path and adjusting a flow rate. The most common structure is to inject cleaning water from.

In local cleaning, it is important that cleaning water is properly jetted to a target. Therefore, it is necessary to appropriately set the stroke of the nozzle body and the jet pressure of the cleaning water. And, for the purpose of improving the cleaning function, after the nozzle body reaches its cleaning position, the nozzle body is reciprocated or swung with a small stroke so as to widen the cleaning area. I have.

However, in the case of the conventional structure, only the nozzle body itself is moved, and even if the washing water ejection point moves and the washing area is widened, the water force of the washing water does not change. For this reason, even if the range of washing is widened, there is no massage effect or the like utilizing the change in the water level of the washing water, and no improvement in the washing power using the change in the flow due to intermittent discharge can not be expected.

In order to improve the massage effect and detergency by intermittently discharging water from the nozzle body, the applicant of the present application has proposed an intermittent application disclosed in Japanese Utility Model Application No. 1-133761. A sanitary washing device with a water discharge mechanism was proposed. This is achieved by providing a rotor that is rotated by a motor in a supply path from the hot water tank to the nozzle device, and by intermittently communicating / non-communicating a hole formed in the rotor with the flow path, whereby the cleaning water is This enables intermittent water discharge.

[0007]

According to such intermittent water discharge using a rotor, the cleaning water is jetted from the nozzle body in a pulsating manner, and the cleaning power is stronger than in the case of normal water discharge. In addition, a massage effect can be obtained.

However, since the rotor only opens and closes the flow path intermittently, its function is to only pulsate the water discharged from the nozzle body, and cannot adjust the flow rate. Therefore, similarly to the conventional sanitary washing device, the flow rate must be adjusted using a valve unit incorporating an on-off valve, a pressure adjusting valve, a flow rate adjusting valve, and the like. Therefore, a member for intermittent water discharge is required in addition to the valve unit,
This tends to impede the degree of freedom of incorporating other components into the limited space casing.

In addition, since the nozzle device is used for anal cleaning and bidet use, it is necessary to connect two channels to the nozzle body. For this reason, it is necessary to separately provide a valve for switching the flow path, and the piping to the nozzle device becomes considerably complicated. Therefore, if a member for intermittent water discharge is further incorporated into such piping, assembly and maintenance and inspection are troublesome, and the piping space is bulky.

[0010] As described above, when the member for intermittent water discharge is incorporated to enhance the detergency and obtain a massage effect, the problem of the piping space cannot be ignored and the arrangement of the equipment in the casing is affected. It is easy to be.

The problem to be solved in the present invention is that the pulsating water discharge mechanism is provided with an additional function such as flow rate adjustment so as to suppress the bulk of the piping space and to further enhance the cleaning power and sufficiently obtain the massage effect. It is in.

[0012]

According to the sanitary washing device of the present invention, the washing water flowing from the inflow passage (7a) is used for washing the anus in the first outflow passage (7b) or the bidet is used for washing the second water. A water channel system for leading to an outflow channel (7c), and a first rotatable and rotatable channel from the inflow channel (7a) according to a rotation angle.
A valve body (10, 11) for increasing or decreasing the amount of washing water guided to the outflow path (7b) and increasing or decreasing the amount of washing water guided from the inflow path (7a) to the second outflow path (7c) according to the rotation angle is incorporated. It comprises a housing (7) and a motor (12) fixed to the outside of the housing (7) and applying a rotational force to the valve bodies (10, 11).

[0013]

The destination of the washing water flowing from the inflow passage by the valve body can be switched to the first outflow passage or the second outflow passage, and the amount of the washing water can be increased or decreased at the switching destination. Further, since the valve element is rotated by the motor, almost no user's force is required, and the usability is good. Further, since the motor is fixed to the outside of the housing which incorporates a valve body, while increasing the stability of the electricity supply, and it is possible to also enhance the responsiveness of the valve body, for fixing the motor
The housing is also used as a member of
No need .

Further, since the moving means allows the valve block to move from the closed state to the open 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 cleaning water toward the nozzle device can be changed, and the water level of the cleaning water ejected from the nozzle device can be adjusted.

Further, if the drive mechanism is finely reciprocated in a constant cycle, the valve block swings in the direction of closing and opening the flow path. Therefore, the flow rate of the washing water passing through the inside intermittently increases or decreases, and pulsation occurs in the internal flow. Therefore, the pulsated washing water is also ejected from the nozzle device, and pulsating water discharge becomes possible.

[0016]

1 is a schematic view showing a supply system of washing water in a 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 a toilet body.

In the figure, a casing 1 of a sanitary washing device fixed to a toilet body 20 has a toilet seat 1a and a toilet lid 1b which can be opened and closed freely. Inside the casing 1,
A system for supplying the 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. Done.

The nozzle device 2 includes a cylinder 2a fixed inside the casing 1 and a nozzle main body 2b incorporated in the cylinder 2a so as to be able to move forward and backward. There is provided a nozzle head 2c having two types of ejection holes for use. The nozzle body 2b is mechanically connected to the output shaft of the motor 2d, and the nozzle body 2b reciprocates between the storage position and the washing position in the casing 1 by the forward and reverse rotation.

In the supply system of the washing water to the nozzle device 2, 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. Is provided with a controller 5 for controlling the operation of. The valve unit 3 includes an on-off valve of a solenoid valve type and a pressure regulating valve.
Turn on the cleaning switch provided in the valve unit 3
The on-off valve in is opened, and feed water of a constant flow rate 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 temperature setting switch or the like on the operation panel 1c. 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 flow paths is incorporated as a valve device in this embodiment.

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

The shift valve 6 has a flow path for washing water formed from the hot water tank 4 to the nozzle device 2 inside the housing 7. An inflow path 7 a communicating with the hot water tank 4 is provided at one end of the shift valve 6. Nozzle body 2a of nozzle device 2 for anal cleaning and bidet with the other end side forked
To form a first outflow channel 7b and a second outflow channel 7c. These first and second outflow paths 7b and 7c include:
A first valve chamber 8 and a second valve chamber 9 for opening / closing the washing water flow path and adjusting the flow rate are provided. These first and second valve chambers 8, 9 are provided with first and second outflow passages 7b,
7c is a hollow cylindrical shape that blocks the internal flow path, and has inflow holes 8a, 9a and outflow holes 8b, 9b at its lower end.

In the first and second valve chambers 8 and 9, a first valve block 10 and a second valve block 11, which operate independently, are slidably assembled vertically.
The second valve blocks 10 and 11 are connected to a drive source by a cam mechanism constituting a moving unit in the present embodiment.

FIG. 5 shows these first and second valve blocks 1.
FIG. 7 is a plan view when 0 and 11 are incorporated in the housing 7, and FIGS. 6A and 6B are cross-sectional views taken along lines AA and BB in FIG. 3, respectively.

The first and second valve blocks 10 and 11 are housed in a water-tight manner in the first and second valve chambers 8 and 9 and are slidable in the axial direction and have upper ends thereof. Are provided with flanges 10b and 11b. In addition, guides 10c and 11c are provided on the upper surfaces of the flanges 10b and 11b so that the circumferential surfaces of the cams are in sliding contact with each other. These guides 10c and 11c are provided at positions shifted to the left and right from the center, respectively, as shown in FIG. And, these first and second valve blocks 10,
11 is urged upward by compression coil springs 10d, 11d incorporated as elastic means between the lower surfaces of the respective flanges 10b, 11b and the upper surface of the housing 7.

In order to operate the first and second valve blocks 10 and 11, as shown in FIG.
Is provided as a drive mechanism in this embodiment. The drive motor 12 is fixed to the outside of the housing 7 using, for example, the casing 1, and extends so that the axis of the rotation shaft 12 a passes through the centers of the first and second valve blocks 10 and 11. A first cam 13 and a second cam 14 are attached to the rotating shaft 12a so as to slide on the upper surfaces of the guides 10c and 11c of the first and second valve blocks 10 and 11, respectively. In addition, the thing equivalent to the 1st cam 13 and the 2nd cam 14 may be integrally molded with the rotating shaft 12a.

FIGS. 7A and 7B show profiles of the first and second cams 13 and 14, each of which is viewed from the drive motor 12. Each of the first and second cams 13 and 14 has a circle as a basic shape, and takes a rectangular coordinate axis whose origin is the center of the circle.
It has a drive surface 13a in which a quadrant is cut out. On the other hand, the second cam 14 has a driving surface 14a in the third quadrant. In other words, the first and second cams 13 and 14 are common components and are mounted on the rotating shaft 12a such that the positions of the driving surfaces thereof are opposite to each other.
The sliding surfaces other than a and 14a are idler surfaces 1 having a uniform outer diameter.
Functions as 3b and 14b.

When the first and second cams 13 and 14 having such a profile are in the positions shown in FIGS. 6A and 6B, the first and second valve blocks 10 and 11 are moved to the lowest end. Push down. That is, the first and second cams 13 and 14
Since they are attached to the common rotation shaft 12a so as to have a mutual posture relationship as shown in the drawing, the guide 1
Since 0c and 11c are in sliding contact with the idler surfaces 13b and 14b, respectively, the first and second valve blocks 10 and 11 are both pushed down, and the inflow holes 8a, 9a and the outflow holes 8b, Close all 9b.
Therefore, when the drive motor 12 is not operated, FIG.
By setting the postures of the first and second cams 13 and 14 as described above, the flow path from the inflow path 7a to the first and second outflow paths 7b and 7c is closed, and the shift valve 6 is connected to the nozzle device 2. The flow path will be closed.

The drive motor 12 is controlled by the controller 5 described with reference to FIG. 1, and the direction and amount of rotation of the rotary shaft 12a are set by switches on the operation panel 1c.

The operation panel 1c has a first washing switch 1d for washing the anus, a second washing switch 1e for use as a bidet, a stop switch 1f for stopping the washing operation, and a flow rate for setting the washing water flow rate. A flow control switch 1g is provided, and a pulsating water discharge switch 1h for pulsating water discharge by the shift valve 6 is further incorporated. This pulsating water discharge switch 1h
Is turned on when the first or second cleaning switch 1d, 1e is turned on, the controller 5 causes the rotating shaft 12a of the drive motor 12 to rotate at regular intervals.
4a, the first and second cams 1 rotate forward and backward within the range of the central angle.
The first and second valve blocks 10 and 11 are reciprocated up and down by a minute stroke through the guides 10c and 11c by the sliding contact of the respective drive surfaces 13a and 14a of the 3 and 14 respectively.

In the above configuration, when the first cleaning switch 1d of the operation panel 1c is pressed, the motor 2d of the nozzle device 2 is operated to advance the nozzle body 2b to the anal cleaning position,
At the same time, the on-off valve of the valve unit 3 is opened. As a result, the water is supplied to the hot water tank 4 and the cleaning water already 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, 11
Are closed as shown in FIGS. 6A and 6B, but when the first washing switch 1d is turned on, the drive motor 12 is energized so that only the first valve block 10 is opened.

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

When the rotating shaft 12a of the driving motor 12 is rotated clockwise in the drawing from the closed state of FIG. 8A, the guide 10c is moved upward so as to approach the rotating shaft 12a by the movement of the driving surface 13a. Move. That is, the driving surface 1
3a, the point of contact with the guide 10c moves toward the center of the first cam 13 according to its rotation, so that the first valve block 10 is biased by the compression coil spring 10d, as shown in FIG. 8B. So move on. Therefore, the valve body 10a fully opens the inflow hole 8a and the outflow hole 8b, and the maximum flow rate of the washing 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. When the first valve block 10 is opened, the rotating shaft 12a also rotates clockwise in FIG. 9 as described above. Therefore, although the second cam 14 rotates in the direction of the arrow shown by the broken line in FIG. 9A, the position of the second valve block 11 cannot be changed because the guide 11c only abuts on the idler surface 14b. Instead, the state shown in FIG. For this reason, when the first valve block 10 performs the opening operation, 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. You.

When the stop switch 1f is pressed after the washing is completed,
The drive motor 12 is energized by the controller 5, and the rotating shaft 12a rotates in the direction opposite to the direction of the valve opening operation. That is, if the rotating shaft 12a is rotated counterclockwise in the drawing from the valve-open state of FIG.
a gradually increases the length in the radial direction.
c, the first valve block 10 is moved to the first valve chamber 8
Press it into Therefore, finally, FIG.
As described above, the valve body 10a closes the inflow hole 8a and the outflow hole 8b, and the supply of the washing water to the nozzle device 2 via the first outflow passage 7b is stopped.

Also during the valve closing operation of the first valve block 10, the guide 11c of the second valve block 11
Of the idler surface 14b.
The valve block 11 maintains the stopped state as shown in FIG. 9A, and there is no supply of the cleaning water from the second outflow passage 7c to the nozzle device 2.

When the second cleaning switch 1e is turned on, the rotation shaft 12a of the drive motor 12 rotates counterclockwise in FIG. As a result, the second cam 14 rotates at a maximum of 90 degrees until the posture shown in FIG. 3B is reached, and the second valve block 11 moves upward depending on the shape of the drive surface 14a. Therefore,
The inflow hole 9a and the outflow hole 9b are opened to the maximum opening degree, and the washing water from the hot water tank 4 is supplied to the nozzle device 2 for bidet use.

At this time, the first cam 13 which rotates integrally with the rotating shaft 12a rotates counterclockwise in FIG. 8A, but the guide 10c abuts against the idler surface 13b having a uniform outer diameter. Therefore, the first valve block 10 maintains the valve closing position as shown in FIG. Therefore, the first
There is no outflow of the cleaning water from the outflow channel 7b, and only the cleaning water for bidet is supplied to the nozzle device 2.

When the stop switch 1f is pressed, the controller 5 causes the rotating shaft 12a of the drive motor 12 to move as shown in FIG.
(B), it rotates clockwise. As a result, the guide 11c moves toward the idler surface 14b, the second valve block 11 gradually descends, and finally returns to the closed state shown in FIG. At this time, since the guide 10c of the first valve block 10 only abuts on the idler surface 13b of the first cam 13, the first valve block 1
0 is maintained in the state of FIG. 8A, and the flow path on the anal lavage side remains closed.

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

When the flow control switch 1g is operated at the time of cleaning with the first cleaning switch 1d, 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 12a of the drive motor 12. That is, as described with reference to FIG.
Since the valve block 10 moves by changing the position of the contact point between the drive surface 13a of the first cam 13 and the guide 10c, and the drive surface 13a has a profile that is monotonously directed toward the center according to the rotation of the first cam 13, 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 rotating shaft 12a by the drive motor 12 is set, the opening can be continuously changed between the fully closed state in FIG. 8A and the fully open state in FIG.

Such a change in the opening degree is also possible in the second valve block 11 when 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 on-off valve,
By using the first and second cams 13 and 14, the valve opening degrees of the first and second valve blocks 10 and 11 can be set freely, and the function as a flow control valve can be achieved. 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.

In addition to the switching of the flow path and the adjustment of the flow rate, the washing water from the nozzle device 2 can be jetted while pulsating. For this operation, for example, when the first washing switch 1d is turned on and the washing water is supplied to the nozzle device 2 from the first outflow passage 7b, the pulsating water discharge switch 1h may be turned on. As a result, the controller 5 causes the rotating shaft 12a of the drive motor 12 to rotate forward and backward at a constant cycle, and the first and second cams 13 and 14 to integrally rotate forward and backward. Then, the driving surface 13 of the first cam 13
Since a has a monotonous profile directed in a direction deviating toward the center, the flow rate is large in a cycle where the rotation angle of the rotating shaft 12a is large, and the flow rate is small in a cycle where the rotation angle is small. For this reason, if the rotation angle of the rotation shaft 12a is periodically changed in a very short time and the span of this rotation angle is within the range of the central angle (90 degrees) of the driving surfaces 13a and 14a, the rotation is sent to the nozzle device 2. The washing water starts to pulsate, and is ejected from the nozzle head 2c as pulsating spouting water whose water force changes in strength.

Since the guide 11c of the second valve block 11 only abuts the idler surface 14b of the second cam 14 during the pulsating discharge, there is no supply of cleaning water from the second outflow passage 7c. Is supplied to the nozzle device 2 as a pulsating flow. Then, even when the second flushing switch 1e is turned on and the pulsating water discharge switch 1h is turned on, the second outflow path 7 is similarly turned on.
The pulsating spout from c is obtained.

According to such pulsating spouting of the washing water, the number of times of hitting the local part is increased as compared with the normal spouting, so that the adhering matter is effectively removed and the washing efficiency is improved. In addition, since there is a massage effect due to pulsation, for example, if washing water is spouted before stool, it is possible to promote the stool, and a comfortable effect can be expected.

[0047]

According to the present invention, one valve device provided on the downstream side of the nozzle device can not only switch and adjust the water flow of the washing water, but also eject or pulsate the washing water at a constant water force. You can use it by switching to something.
For this reason, there is no need to add a mechanism for pulsation in addition to the valve unit in which the on-off valve and the flow control valve are combined as in the conventional case, and it is possible to suppress the bulk of the piping space in the casing, and to lay out the equipment. The degree of freedom is improved. In addition, in the case of pulsating spouting, since the washing water is a spout that repeatedly hits a local part, the detachment of the adhered substance can be performed more strongly than in the case of the normal spouting, and efficient washing can be performed. Further, since the valve element is rotated by the motor, almost no user's force is required, and the usability is improved. In addition, the motor is located outside the housing containing the valve.
Because it is fixed to the section , it is possible to increase the responsiveness of the valve body while improving the stability of electricity supply ,
The housing is also used as a member for fixing the
Therefore, there is no need to provide it separately .

[Brief description of the drawings]

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

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

FIG. 3 is a schematic plan view showing a shift valve and a drive system thereof.

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

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

6A and 6B are diagrams showing the incorporation of the first valve block and the second valve block into the housing, and FIG.
3 is a vertical sectional view taken along line AA of FIG. 3, and FIG. 3B is a vertical sectional view taken along line BB of FIG.

FIGS. 7A and 7B are diagrams showing the shapes and arrangement postures of the cams, wherein FIG. 7A shows a first cam and FIG. 7B shows a second cam.

FIGS. 8A and 8B are views showing the movement of a first valve block caused by rotation of a first cam, wherein FIG. 8A is a longitudinal sectional view showing a valve closed state and FIG. .

9A and 9B are views showing the movement of a second valve block due to rotation of a second cam, wherein FIG. 9A is a longitudinal sectional view showing a valve closed state and FIG. 9B is a longitudinal sectional view showing a fully open state. .

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 1d 1st washing switch 1e 2nd washing switch 1g Flow control 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 path 7b First outflow path 7c First 2 Outlet 8 First valve chamber 8a Inlet 8b Outlet 9 Second valve chamber 9a Inlet 9b Outlet 10 First valve block 11 Second valve block 12 Drive motor (drive mechanism) 13 First cam (moving means) 14 Second cam (moving means)

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E03D 9/00-9/16

Claims (3)

(57) [Scope of request for utility model registration] 1. A water channel system for guiding washing water flowing from an inflow channel (7a) to a first outflow channel (7b) for anus to be cleaned or a second outflow channel (7c) for a bidet for cleaning. The amount of washing water guided from the inflow channel (7a) to the first outflow channel (7b) can be increased or decreased according to a rotation angle, and the second outflow channel can be changed from the inflow channel (7a) according to a rotation angle. Valve body (10, 11) for increasing or decreasing the amount of washing water leading to (7c)
And a housing (7) containing the
A sanitary washing device characterized by comprising a motor (12) fixed to the outside and applying a rotational force to the valve bodies (10, 11). 2. The sanitary washing device according to claim 1, wherein the motor (12) includes a controller (5) for controlling a rotation direction and a rotation amount according to a user operation. Cleaning equipment. 3. The sanitary washing device according to claim 2, wherein the controller (5) includes a pulsating water discharge switch (1h) for instructing pulsating water discharging.