JP2554666Y2 - Cleaning water spouting mechanism for 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 device having a local washing function, and more particularly to a compact valve having the same function as a valve for adjusting the flow rate of washing water to a washing nozzle and stopping water. Water discharge mechanism for cleaning water.

[0002]

2. Description of the Related Art In recent years, sanitary washing devices capable of performing local washing by jetting of washing water and blowing hot air after washing to carry out local drying and the like have been widely used in recent years. FIG. 5 shows an example of a sanitary washing device integrated with a toilet, and the toilet body 5 is shown.
The functional unit of the sanitary washing device is housed in a casing 51 integrated with the washing unit 52, and a washing nozzle 53 that goes under the toilet seat 52 and advances from the housed position to the washing position is connected to the functional unit. In order to supply hot water having a temperature suitable for cleaning to the cleaning nozzle 53, a valve unit 54 and a hot water tank 55 connected to an external water supply source are incorporated in the casing 51 as shown in FIG.

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 cleaning nozzle 53 and the jet pressure of the cleaning water. . For the purpose of improving the cleaning function, a type in which the cleaning nozzle 53 reciprocates with a small stroke after reaching the cleaning position to expand the cleaning area has already been developed.

However, the conventional structure has a cleaning nozzle 5.
3 only moves the cleaning water jetting point and the cleaning area is widened, but the water level of the cleaning water does not change.
For example, Japanese Patent Publication No. 1-14390 discloses a configuration in which a nozzle head is provided with a special structure, and a cleaning nozzle is reciprocated at the cleaning position to intermittently apply water to a local portion for cleaning. Have been. However, this is also a water discharge method in which the cleaning point is not concentrated at one point by moving the jetting point of the cleaning water, and the water is not discharged while changing the water force.

As described above, in the conventional structure, although the washing point can be moved to set a wide washing area, the water force of the washing water itself cannot be changed intermittently. For this reason, there was no massage effect at the time of washing, and improvement of the washing effect using the change in flow due to intermittent water discharge could not be expected.

Accordingly, the present inventors have proposed a simple structure in which the washing water is directed to the washing water jetting end of the washing nozzle in order to improve the massage effect and the washing function by intermittently discharging water from the washing nozzle. A sanitary washing device having an intermittent supply device for intermittently supplying washing water to a washing nozzle in a flow path has been developed, and the application has been filed as Japanese Utility Model Application No. 1-133761.

[0007]

However, the sanitary washing device provided with the intermittent supply device has a larger number of parts as compared with the conventional sanitary washing device, and is a factor that hinders the downsizing and cost reduction of the sanitary washing device. It has become.

SUMMARY OF THE INVENTION The present invention makes it possible to freely obtain a suitable washing form as a sanitary washing device and to reduce the number of components of a flow path system, thereby making the entire device compact and improving the degree of freedom in equipment layout. With the goal.

[0009]

SUMMARY OF THE INVENTION The present invention provides a sanitary washing device which is rotatable and has a rotor (7) for connecting an inflow channel (4b) to an outflow channel (4c) or an outflow channel (4d). In the flush water discharge mechanism of (1), the rotor (7) communicates the inflow path (4b) with the outflow path (4c) according to a rotation angle, and a first rotation area whose effective communication area increases and decreases;
A second rotation region which communicates the inflow passage (4b) with the outflow passage (4d) in accordance with the rotation angle without interfering with the first rotation region, and whose effective communication area increases or decreases. And

[0010] The rotor (7) may be provided with a third rotation region that does not connect the inflow path (4b) to either the outflow path (4c) or the outflow path (4d).

Further, the rotor (7) can be provided with a motor (5) capable of reversing the rotation direction in the first rotation area or the second rotation area.

[0012]

In accordance with the rotation angle of the rotor (7), the inflow path (4)
Since the effective communication area between b) and the outflow path (4c) or the effective communication area between the inflow path (4b) and the outflow path (4c) increases or decreases, the amount of flushing water discharged can be changed. Also,
Since the first rotation area and the second rotation area do not interfere with each other, the cleaning water is discharged from one of the outflow path (4c) or the flow path (4b) and the outflow path (4d). It is not necessary to separately provide a valve or the like for switching the flow path, and the entire sanitary washing device can be downsized.

In the motor having the third rotation area, when the rotor (7) is in the third rotation area, the inflow path (4)
Since b) does not communicate with any of the two outflow channels (4c) and (4d), the discharge of the washing water supplied from the inflow channel (4b) can be stopped, and a water stopcock or the like is separately installed. Is also unnecessary, so that the size of the sanitary washing device can be further reduced.

Further, in the case where the rotor (7) is rotated forward and reverse by a motor, if the rotor (7) is rotated forward and reverse in one of the first and second rotation regions, the cleaning is performed with different flow rates and strong and weak. Water can be spouted.

[0015]

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

In FIG. 1, a cleaning nozzle 1 can be moved forward and backward by a motor 1a, and a hot water supply system for heating and supplying water is connected to the cleaning nozzle 1. A water supply pipe from the outside is connected to a valve unit 2 provided with various solenoid valves or needle valves for opening / closing, pressure regulation, etc., and water is supplied to the hot water tank 3 from this. The hot water tank 3 includes a heater 3a, a temperature sensor 3b, and the like.
The inflowing water is heated to a set temperature and sent to the cleaning nozzle 1.

An intermittent supply device 4 for supplying hot water intermittently to the tail side or bidet side of the washing nozzle 1 is incorporated in the path from the hot water tank 3 to the washing nozzle 1.
The intermittent supply device 4 is driven by a motor 5 so that an interval of intermittent supply of the washing water from the hot water tank 3 can be set appropriately. And the intermittent supply device 4
Motor 5, washing nozzle 1 motor 1a, opening and closing of valve unit 2, heating in hot water tank 3, and intermittent supply device 4
Are all controlled by the control unit 6, for example, an operation panel 51a provided in a casing 51 of FIG.
The operation of the cleaning device can be performed by utilizing the above.

FIG. 2 shows the details of the intermittent supply device 4, in which an inflow passage 4 b connected to the casing 4 a on the side of the hot water tank 3, and two systems connected to the bidet side or buttocks side of the washing nozzle 1, respectively. Outflow passages 4c and 4d are formed. Further, a float 8c is provided at the upper end of the inflow path 4b, and the vacuum breaker 8 is constituted by the lid 8a having the flow path 8b. And the inflow channel 4b and the outflow channel 4c,
A rotor 7 that connects the inflow path 4b and the outflow paths 4c and 4d is incorporated in the middle of 4d.

The output shaft 5a of the motor 5 is directly connected to the shaft portion 7e of the rotor 7, and when the motor 5 is operated by a signal from the control unit 6, the motor 5 rotates forward and backward at a set speed.

FIG. 3 shows details of the rotor 7. As shown in the figure, the rotor 7 has a pair of cylindrical drums 7a and 7b formed on the same shaft and having a small diameter at an intermediate portion.
L-shaped flow grooves 7c and 7d are formed on the outer peripheral surfaces of a and 7b, each of which is composed of an axial groove and a groove that varies in width and depth along the circumferential direction following the axial groove. . As shown in FIG. 3, the flow channel grooves 7c and 7d have a length in the circumferential direction of about 1/4 of the circumference and are located on opposite sides of the circumferential surface, respectively. The channel groove 7c and the outflow path 4c, and the channel groove 7d and the outflow path 4d are formed so as not to be simultaneously communicated with each other.

Further, as shown in FIG.
Is rotatably incorporated into the casing 4a via an O-ring 4e. Reference numeral 4f denotes a packing provided at a contact portion between the drum 7a and the outflow passage 4d for preventing wraparound.

In the above configuration, when the cleaning water is not supplied to the cleaning nozzle 1, the rotation posture of the rotor 7 is made appropriate, so that the outflow paths 4b, 4d from the flow grooves 7c, 7d.
c can be shut off at the same time. That is,
As described above, the flow channel grooves 7c and 7d have the length in the circumferential direction being approximately 1/4 of the circumference and are located on the respective opposite sides of the circumferential surface. If the rotor 7 is rotated clockwise by about 120 ° in b), the peripheral surface of the rotor 7 is sealed by the packing 4f, and the flow paths to the outflow passages 4b and 4c are shut off.

Therefore, the intermittent supply device 4 can have the function of stopping the flow of water to the cleaning nozzle 1 by utilizing the rotation posture of the rotor 7. For this reason, it is not necessary to separately install a water stopcock or the like in the intermittent supply device 4 itself or the flow path to the cleaning nozzle 1, and the flow path system can be simplified.

Here, when the washing switch of the operation panel 51a is turned on to either the buttocks side or the bidet side, the valve unit 2 opens the flow path and the washing water from the washing water tank 3, which has been heated to a preset temperature, is opened. The supply to the intermittent supply device 4 is started, and the cleaning nozzle 1 advances to the cleaning position by driving the motor 1a.

On the other hand, in the intermittent supply device 4, the two flow passage grooves 7c and 7d of the rotor 7 are rotated in a direction in which one of the outflow passages 4c and 4d is arbitrarily selected in a switch-on state. The outflow paths 4c and 4c are set by setting the rotation angle.
The flow path area to the d side is also arbitrarily adjusted. That is, when the buttocks washing switch is turned on, the rotor 7 rotates from the state where neither the flow channel 7c and the outflow channel 4c nor the flow channel 7d and the outflow channel 4d communicate with each other, and FIG. As shown in a), the flow channel 7d overlaps with the outflow channel 4d so that they communicate with each other, whereby the cleaning water is supplied to the bottom cleaning channel of the cleaning nozzle 1. When the bidet switch is pressed, the flow channel 7c and the outflow channel 7c are switched to communicate with each other depending on the rotation direction of the rotor 7, whereby the cleaning water can be supplied to the cleaning nozzle 1.

Therefore, the flow path can be communicated with one of the two outflow paths 4c and 4d depending on the rotation direction of the rotor 7, so that the intermittent supply device 4 also has a function as a switching valve. For this reason, the intermittent supply device 4
There is no need to separately install a switching valve or the like between the cleaning nozzle 1 and the cleaning nozzle 1, and the flow path system to the cleaning nozzle 1 can be simplified to reduce its bulk.

Further, since the cross-sectional area of the flow channel groove 7d continuously changes from large to small or vice versa along the circumferential direction of the rotor 7, the cross-sectional area varies according to the angle at which the rotor 7 is rotated by the motor 5. The road area is increased or decreased, so that the flow rate of the washing water toward the outflow path 4d can be adjusted to be increased or decreased. That is, the flow rate becomes minimum in the state of FIG. 4B, and becomes maximum in the state of FIG. In addition, as shown in FIG.
The cleaning water flowing from b flows in from the axial groove of the flow channel groove 7d, flows on the circumference, is discharged to the outflow channel 4d, and heads toward the cleaning nozzle 1.

As described above, by forming the flow passage groove 7d in a cross-sectional shape whose size is changed in the circumferential direction of the rotor 7, the operation of adjusting the rotation angle of the rotor 7 only by adjusting the rotation angle of the rotor 7 causes the cleaning water to flow to the cleaning nozzle 1. The flow rate can also be adjusted, and the intermittent supply device 4 can also function as a flow rate adjustment valve. The same applies to the combination of the flow channel 7c and the outflow channel 4c.

Further, the flow path groove 7d of the rotor 7 is formed in the outflow path 4d.
(FIGS. 4 (b) to 4 (c)) by continuously rotating the motor 5 in the forward and reverse directions in small increments to change the flow path section formed by the flow path hole 7d and the outflow path 4d to change the water flow rate. It is possible to make the water spouting state in which the strength is varied.

In such a water discharge, for example, when the reciprocating rotation angle of the rotor 7 for realizing the minimum flow rate in FIG. 4B and the maximum flow rate in FIG. Become stronger. If the motor 5 is controlled to reciprocate the rotor 7 counterclockwise, for example, at a rotation angle of about 30 ° from the state shown in FIG. It is possible. Conversely, if the rotor 7 is reciprocated in the clockwise direction at a rotation angle of, for example, about 30 ° from the state shown in FIG. 3C, strong and weak water discharge can be performed with the flow rate increased.

As described above, by setting the range in which the flow passage groove 7d of the rotor 7 communicates with the outflow passage 4d side by the rotation angle of the rotor 7, strong and weak water discharge can be selectively used depending on the flow rate. Thus, strong and weak water discharge at the most appropriate flow rate can be performed according to the application. The same applies to the combination of the flow channel 7c and the outflow channel 4c.

Further, if the forward and reverse rotation of the rotor 7 is performed between a range where the flow channel groove 7d is aligned with the outflow passage 4d and a range where the flow channel groove 7d is out of the range, that is, a range where the rotor 7 is sealed, the cleaning water Supply and stop are intermittently repeated, so that a massage effect due to water discharge from the cleaning nozzle 1 can be obtained, and defecation can be promoted. Also in such intermittent water discharge, intermittent water discharge with a reduced flow rate is performed in FIG. 4B, and intermittent water discharge with a large flow rate is performed in FIG. 4C. Intermittent water discharge at a corresponding flow rate can be obtained.

As shown in FIG. 4A, the normal water discharge float 8c is pushed up to the upper surface by the pressure of the water flowing from the flow path 4b, so that water can flow into the rotor 7 side. At this time, since the float 8c is pressed against the lid 8a, water does not flow into the flow path 8b. When the water discharge is stopped, the float 8c falls by its own weight, and the flow path B is opened to the atmosphere, and the water accumulated in the rotor 7 and the nozzles is discharged into the toilet through the nozzle holes. Therefore, cold water that has dropped to room temperature in the nozzle is not discharged at the start of the next water discharge. Further, when a negative pressure is generated on the water supply side, the float is drawn toward the flow path 4b and covered, so that no wastewater flows into the water supply side.

[0034]

[Effects of the Invention] In the present invention, it is not necessary to separately install a water stopcock or a switching valve in the flow path system because water can be switched and the flow path can be switched by rotating the rotor, and the flow rate can be adjusted. As a result, the space required for piping of the sanitary washing device is reduced, and the degree of freedom in layout of the built-in devices and the like is improved.

If the output shaft of the motor is controlled to rotate forward and backward, not only can intermittent water discharge be possible,
Intermittent water discharge or strong water discharge with the flow rate changed by setting the rotation range or the like can be performed, so that the massage effect by washing can be further improved.

[Brief description of the drawings]

FIG. 1 is a schematic system diagram of a cleaning water supply showing a cleaning water discharging mechanism of the present invention.

FIG. 2A is a cross-sectional view of the intermittent supply device, and FIG. 2B is a vertical cross-sectional view of AA in FIG.

3A is a front view of a rotor, and FIG. 3B is a view B of FIG.
FIG. 3C is a cross-sectional view taken along a line B, and FIG.

FIG. 4 is a diagram for explaining a flow of cleaning water.

FIG. 5 is a diagram showing a flush toilet provided with a sanitary washing device.

FIG. 6 is a schematic view showing a conventional cleaning water supply system.

[Explanation of symbols]

 1: Cleaning nozzle 1a: Motor 2: Valve unit 3: Hot water tank 3a: Heater 3b: Temperature sensor 4: Intermittent supply device 4a: Casing 4b: Inflow path 4c: Outflow path 4d: Outflow path 4e: O-ring 4f: Packing 5 : Motor 5a: Output shaft 6: Control unit 7: Rotor 7a: Drum 7b: Drum 7c: Flow channel 7d: Flow channel 7e: Shaft 8: Vacuum breaker 8a: Lid 8b: Flow channel 8c: Float

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) The inventor Takao Sakuma 100 Maeda-cho, Totsuka-ku, Yokohama-shi Koito Industry Co., Ltd.

Claims (3)

(57) [Scope of request for utility model registration] 1. A washing water spouting mechanism for a sanitary washing device comprising a rotor rotatable and having a rotor (7) for communicating an inflow path (4b) with an outflow path (4c) or an outflow path (4d). The rotor (7) is connected to the inflow path (4) according to the rotation angle.
b) is communicated with the outflow channel (4c), and the first rotation region in which the effective communication area increases and decreases, and the inflow channel (4b) does not interfere with the first rotation region and is connected to the outflow channel (4b) according to the rotation angle. (4
and d) a second rotating area whose effective communication area is increased or decreased. 2. The rotor according to claim 1, wherein the rotor has a third rotation region that does not communicate the inflow path with either the outflow path or the outflow path. Cleaning water spouting mechanism of the sanitary washing device. 3. The rotor according to claim 1, wherein the rotor has a motor capable of reversing the direction of rotation in the first rotation area or the second rotation area. Cleaning water spouting mechanism of the sanitary washing device in Japan.