JP2551816Y2 - 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 apparatus having a local washing function, and more particularly, to washing water from a washing nozzle.
The present invention relates to a water discharge mechanism for washing water, which has a massage function by performing dynamic water discharge .

[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.

Accordingly, the present invention is to provide a sanitary washing device having an intermittent supply function, which integrates an intermittent supply device and a three-way valve communicating with the buttocks side and the bidet side, thereby enabling downsizing and cost reduction. With the goal.

[0009]

According to the present invention, there is provided a washing nozzle for jetting washing water toward a local portion, a rotor provided in a flow path of washing water from a water supply source to the nozzle, and A motor for reciprocating rotation in the forward and reverse directions, wherein the rotor has a groove-shaped small-diameter portion all around the axis in the axial direction.
When the small diameter portion is communicated with the flow path from the water supply source
Together, one end is connected to the small-diameter portion, and a flow channel for communicating between the water supply source side and the washing nozzle is formed in the outer peripheral surface in the rotation direction, and the flow channel is formed in the circumferential direction of the rotor. It is characterized in that the flow path area is continuously changed. In such a configuration, at least one small-diameter portion is provided.
Formed and the circumference of the rotor sandwiching this small diameter part
One channel groove is formed in each circumferential direction of the surface,
The opening of the starting end facing the peripheral surface of the
Number of outflow channels can be communicated with each one channel groove
Provided, one channel groove and the corresponding opening at the beginning of the outflow channel
Communication of any combination depends on the rotation angle of the rotor.
It can also be selectable as one combination .

[0010]

The channel groove provided on the peripheral surface of the rotor in the circumferential direction is
Since the flow path area changes continuously in the circumferential direction, the rotor
The flow path area can be changed to large or small depending on the rotation posture of
This increases or decreases the flow rate of washing water to the washing nozzle.
Is done. And the rotor is rotated forward and reverse by the motor
If this is the case, it is possible to discharge washing water whose flow rate repeatedly increases and decreases.
Pulsating water with strong and weak
Washing can be performed. In addition, the flow path to the cleaning nozzle
Rotating the rotor for multiple sets of rotor channel grooves
Only one channel groove communicates with the channel to the cleaning nozzle
So that it goes from the rotor part to the cleaning nozzle
It becomes unnecessary to provide a switching valve or the like in the flow path.

[0011]

FIG. 1 is a schematic system diagram showing a washing water spouting mechanism of a sanitary washing device of the present invention. In the figure, a cleaning nozzle 1 can move 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 hot water tank 3 heats inflowing water to a set temperature and sends it to the cleaning nozzle 1.

In the path from the hot water tank 3 to the washing nozzle 1, an intermittent supply device 4 for intermittently supplying hot water to the tail side or bidet side of the washing nozzle 1 is incorporated.
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. The inflow passage 4b is connected to the hot water tank 3 side of the casing 4a, and the inflow passage 4b is connected to the bidet side or buttocks side of the washing nozzle 1. 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 operates according to 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 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 pushes out hot water, which has been heated to a preset temperature, from the hot water tank 3 so that the cleaning nozzle 1
Supply to

At the same time, the motor 5 of the intermittent supply device 4
Operates to rotate the rotor 7 in the forward and reverse directions in FIG. The cleaning nozzle 1 advances to the cleaning position by driving the motor 1a.

On the other hand, in the intermittent supply device 4, when the switch is turned on, the flow passage grooves 7c and 7d of the rotor 7 rotate in the direction of the arbitrarily selected outflow passage 4c or 4d to adjust to an arbitrary flow passage area. Is done. That is, the rotor 7 rotates from a state in which neither the flow channel 7c and the outflow path 4c nor the flow channel 7d and the outflow path 4d communicate with each other, and as shown in FIG. Is overlapped with the flow path cross section of the outflow path 4d, the flow path is opened and hot water is sent to the tail side of the washing nozzle 1.

The amount of hot water sent to the nozzle 1 depends on the flow channel 7
is controlled by the flow path area formed by the flow path d and the outflow path 4d. Since the cross-sectional area of the flow path groove 7d changes along the circumferential direction, the flow path area is increased or decreased by rotating the rotor 7 by the motor 5. can do. That is, the flow rate is minimum in the state of FIG. 4B, and is maximum in the state of FIG. Therefore, by continuously rotating the motor 5 in the forward and reverse directions in small increments in the spouting water, that is, in a range where the flow channel groove 7d of the rotor 7 overlaps the outflow channel 4d (FIGS. 4B to 4C). Road hole 7d
It is possible to change the cross section of the flow path formed by the flow path 4d and the outflow path 4d to make the intermittent water discharge state in which the amount of water flow is varied. As shown in FIG. 4 (d), the hot water flowing from the inflow pipe 4b flows in from the axial groove of the flow channel groove 7d, flows on the circumference, and flows out.
It is discharged to d.

Further, as shown in FIG. 4 (a), the float 8c during normal water discharge is pushed up to the upper surface by the pressure of 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.

As described above, if the control system is configured so that the rotor 7 is continuously rotated in the normal and reverse directions by the motor 5 in small increments after the intermittent water discharge switch is turned on, the intermittent opening and closing can be performed. It becomes possible, and the cleaning water is ejected as intermittent water discharge from the cleaning nozzle. The above operation is the same in the case of the outflow path 4c on the bidet side. Also, by changing the forward / reverse cycle, the interval of the intermittent water discharge can be changed at the same time, and the water discharge form according to the application can be easily obtained.

As described above, according to the washing water spouting mechanism of the present invention, the washing water on the buttocks side or the bidet side pulsates, and the number of times of hitting the local part increases compared to the normal spouting. The kimono is effectively separated, and the cleaning 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.

[0024]

[Effect] As described above, in the present invention , the flow path area in the circumferential direction is
By providing a flow channel groove in which the
Therefore, pulsating water can be discharged from the cleaning nozzle.
As compared with the conventional water discharging method in which the nozzle is stroked to continuously change the position where the cleaning water is applied, pulsating water discharging can be performed for one cleaning point. Therefore, since the cleaning water is discharged repeatedly so as to hit a local portion, the detachment of the adhered substance can be performed more strongly than in the case of the normal water discharging, and efficient cleaning can be performed. In addition, if used before stool, the local part is massaged by the pulsating spout, so that it is possible to promote the instinct and not only the washing but also the function can be fully utilized. Furthermore, the flow channel area of the flow channel provided in the rotor is continuous.
Flow is increased or decreased
The amount may not affect the usability
The rotation control of the motor that rotates this rotor
Will also be easier.

Further, when a plurality of flow grooves are provided in the rotor
Now, select only one channel groove by rotating the rotor.
To communicate with the flow path to the cleaning nozzle side.
Switch the flow path even if there are multiple flow paths
No valve or the like is required at all, and it is possible to reduce the size and cost.

[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.

[Description of Signs] 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 channel groove 7d channel groove 7e shaft portion 8 vacuum breaker 8a lid 8b passage 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 (2)

(57) [Scope of request for utility model registration] 1. A washing nozzle for jetting washing water toward a local part, a rotor provided in a flow path of washing water from a water supply source to the nozzle, and a motor for reciprocatingly rotating the rotor in forward and reverse directions. And the rotor has an axial direction.
A flow path from the water supply source on the entire circumference as a groove-shaped small diameter portion
The small-diameter portion is connected to the
A flow groove is formed in the rotation direction to connect the water supply source side and the cleaning nozzle to the outer peripheral surface in the rotating direction, and the flow groove continuously changes its flow area in the circumferential direction of the rotor. Cleaning water spouting mechanism of the sanitary washing device that is made. 2. The method according to claim 1, wherein said at least one small diameter portion is formed.
In both cases, the circumferential direction of the peripheral surface of the rotor sandwiching this small diameter part
One channel groove is formed on each of the
Outlets open at the beginning and leading to the washing nozzle
Are provided so as to be able to communicate with the respective channel grooves one by one.
Of the combination of the flow channel and the opening at the beginning of the corresponding outflow channel
Communication is one of the unions depending on the rotation angle of the rotor.
The flush water spouting mechanism for a sanitary washing device according to claim 1 , wherein the flush water spout mechanism can be selected as a set .