JPH0220738A - Washing device for pudenda - Google Patents

Abstract

PURPOSE:To keep down a variation in discharge and temperature in combined hot and cold water by installing a thermostatic mixing valve in a converging point between a hot water supply pipe and a feed water pipe, while installing each constant flow valve in these hot and cold water pipes. CONSTITUTION:A thermostatic mixing valve T is installed in a converging point between a high water supply pipe 1 and a feed water pipe 2 led from the outside, interconnecting it to a washing nozzle 7 in a toilet stool B via a combined hot and cold water passage (m). Next, constant flow valves 3, 4 are installed in each point midway in the hot water supply pipe 1 and the feed water pipe 2 respectively or either of them. With this constitution, even if there is a variation in pressure in hot and cold water, it is made so as to be almost no variation in discharge and temperature in the combined hot and cold water.

Description

[Detailed description of the invention] (b) Industrial application fields The present invention relates to a private parts cleaning device.

(b) Conventional technology Conventionally, as a form of Western-style toilet, a cleaning nozzle was installed inside the toilet body, receiving hot water and water from outside, generating water at an appropriate temperature using a hot water mixing device, and then generating water at an appropriate temperature using a solenoid valve. Some devices are equipped with a private parts cleaning device that can control the discharge from a cleaning nozzle and clean the private parts with a mixture of hot water and water at an appropriate temperature discharged from the same nozzle.

(C) Problems to be Solved by the Invention However, when the private parts cleaning device and the hot water tap or faucet connected to the same hot water source or water supply source are opened and closed, the pressure between the external hot water supply and the water supply may be affected. If there is a fluctuation, the temperature and discharge amount of the mixed hot water to be discharged will fluctuate, which has the drawback of causing discomfort to the user.

(d) Means for Solving the Problems The present invention provides a private parts cleaning device configured to receive hot water and water from the outside and discharge and stop the mixed hot water whose temperature is adjusted to an appropriate temperature by the user's operation. To provide a private parts cleaning device characterized in that a thermostatic mixing valve is provided at the junction of a hot water supply pipe and a water supply pipe, and a constant flow valve is provided in the middle of each or either of the hot water supply pipe and water supply pipe. It is something to do.

(E) Functions and Effects According to the present invention, constant flow valves are provided in the middle of the hot water supply pipe and the water supply pipe to regulate the flow rate, so even if there are pressure fluctuations on the hot water supply side and the water supply side, the water will not be discharged. It is possible to keep fluctuations in the temperature and discharge amount of mixed hot water to a small level.

Further, it is possible to use a pressure reducing valve instead of a constant flow valve, but the pressure reducing valve has a complicated structure and is expensive.

Embodiment An embodiment of the present invention will be explained in detail based on the drawings. Fig. 1 shows the conceptual overall structure of the private part cleaning device (^) according to the present invention, and in the figure, (1) is a hot water supply pipe. , (2) indicates a water supply pipe, a thermostatic mixing valve m is provided at the junction of the hot water supply pipe (1) and the water supply pipe (2), and
) and the water supply pipe (2) are each equipped with a constant flow valve (304), and the hot water supply pipe (1) is equipped with a thermistor (5) to monitor the water supply temperature. A waste hot water pipe (6) is branched between the mixing valve (T) and a waste water pipe (6) via a waste solenoid valve (vl) using a latching solenoid.

In addition, the downstream side of the thermostatic mixing valve f'T) is connected to a mixing hot water flow path (III) equipped with a discharge solenoid valve (v2) using a latching solenoid similar to the above.
) through the cleaning nozzle (
7).

As shown in FIGS. 2 to 5, the constant flow valve (304) includes a housing (50) inserted into the flow path (31) and a core member (51) hooked into the housing (50). ) and an elastic O-ring (52), and the housing (50
) is formed in a cylindrical shape, and has a stepped part (53) for hanging the core member (51) at the open 1'' end on the upstream side when inserted into the flow path (31), and has a step part (53) for hanging the core member (51) on the downstream side. The opening end has a stepped portion (54) for hanging an O-ring.

In addition, the core member (51) is formed in the shape of a warhead and has a flange (5G) with a water passage hole (55) bored at the rear end.
The circumferential surface has a protrusion (57) extending in the axial direction, and the flange (57)
5G) and the step part (5G) for the core member of the housing (50).
4) is hung in the housing (50), and the distal end portion is loosely inserted into the inner periphery of the O-link hooking step (54) and protrudes from the housing (50).

On the other hand, the 0 link (52) is loosely fitted between the inner peripheral surface of the housing (50) and the outer peripheral surface of the core member (51),
It is hung on the O-ring hanging step part (54) of the housing (50).

Therefore, this constant flow valve (3) + 4) is connected to the flow path (31).
The water flowing through the flow path (31) passes through the water hole (55) and passes through the core member (51) and O-ring (52).
It flows downstream through the gap (59) between the O-ring hooking step (54) and the gap (60) between the core member (51).

At this time, if the water supply pressure to 'a I/8 (31) is low,
Or, in the normal case, as shown in FIGS. 2 and 3, the 0 ring (52) is not deformed and the 0 link (52)
The gap (59) between the core member (51) and the core member (51) maintains a predetermined water flow area, but when the water supply pressure increases, the pressure causes the O-ring (52) to open as shown in Figures 4 and 5. Then, the O-ring (52) is compressed and deformed by being pressed by the stepped portion (54).
The water flow area of the gap (59) between the core member (51) and the core member (51) is reduced.

The deformation of the O-ring (52) increases as the water supply pressure increases, and accordingly, the water passage area decreases and the amount of water flow is restricted.

In other words, this constant flow valve (3N4) always supplies a constant amount of water to the downstream side regardless of fluctuations in water supply pressure.6 Solenoid valves (Vl) (V2) using latching solenoids
As shown in Figure 6, the diaphragm type valve body (1
A solenoid (13) equipped with a permanent magnet (12) for latching is provided on the negative side of 1).
The pilot valve Fi provided on the diaphragm (14) opens and closes the pilot valve body (16) which opens and closes the pilot valve (15), which acts on the front and back surfaces of the diaphragm (14). The tire flam (14) is actuated by the water pressure difference to open and close the main valve Fi (17), and the pilot valve body (16) is opened and closed by the magnetic force of the permanent magnet (12).
By maintaining the open or closed state of the main valve ff1 (17), the water pressure difference described above is maintained and the main valve ff1 (17) is maintained in the open or closed state.

Therefore, a solenoid valve (V
l) (V2), the only thing that drives the solenoid (13) is the valve body (16), and the valve is opened (V2).
l) (V2) needs to be energized only when opening/closing, so power consumption is extremely low.

Thermostatic mixing valve (as shown in Figure 7, it is installed at the junction of hot water supply pipe (1) and water supply pipe (2), and has a mixing chamber in one part inside the approximately cylindrical main body. (2
6), Insert the inner cylinder (22) with the valve body (21) connected to the lower part, and further insert the wax type thermostat (23) inside the inner cylinder (22). (
23) The upper end is operatively connected to an adjustment knob (25) via a screw adjustment mechanism (24), so that the thermostat (23) can be moved up and down by rotation of the knob (25), and the thermostat (23) is filled with wax. Insert the lower part of the thermostat (23) into the mixing chamber (26) of the inner cylinder (22), connect the middle part of the thermostat (23) to the upper end of the inner cylinder (22),
The operation of the intermediate part of the thermostat (23) due to the expansion and contraction of the wax due to the temperature of the mixed hot water in the mixing chamber (26) is transmitted to the valve body (21) connected to the lower end of the inner cylinder (22). ) Hot water and water valve seats (28) (29) installed above and below
By opening and closing to change the mixing ratio of hot water flowing into the mixing chamber (26), the cleaning nozzle (7) in the toilet bowl (B) is passed from the mixing chamber (26) through the mixing hot water flow path (In). )
Use the adjustment knob (25) to adjust the temperature of the mixed hot water discharged from the
It is configured to match the temperature set in .

In particular, since the thermostat I-(23) is operated based on the difference between the mixed hot water and the set temperature, a proportional control operation is performed, and there is no need to receive energy such as electric power from outside.

FIG. 8 shows a control device (C), which is
A reflection-type seating detection sensor (41) that uses ultrasonic waves or infrared rays to detect when the user is sitting, and a discharge push button (
42), the hot water pipe (1) connected to the thermistor (5)
) A comparator (
43), a logic circuit (44) in which the above is connected to the input section, an output section of the logic circuit (44) and the above-mentioned solenoid valve (Vl)
It is composed of drive circuits (45) and (46) interposed between the solenoids (13) and (13) of (V2), a dry battery (D) as a power source, and a power switch (47).

When using the private parts cleaning device (8), when the power switch (47) is turned on and a person sits on the toilet seat of the flush toilet equipped with the device (8), the seating detection sensor (41) outputs an output and the logic circuit ( 44) to the waste water solenoid valve (Vl) to open it, and maintain the volume valve state until the thermistor (5) detects a temperature sufficient to generate mixed hot water at the appropriate temperature. Then, the hot water that has accumulated in the hot water supply pipe (1) and whose temperature has decreased is discharged.

After that, when the user who has finished using the toilet presses the discharge push button (42), the discharge solenoid valve (v2) opens and the toilet bowl is discharged via the thermostatic mixing valve (()). The user from the cleaning nozzle (7) in CB)! ! Discharge mixed hot water at the temperature set with the I adjustment knob (25) to calm the private parts, and when cleaning is completed, turn off the same TA valve (v2).
) to stop the discharge.

The power required for the above control is supplied from the dry battery (D), but the power required is for the two solenoid valves m) (V2
), the thermistor (5), the seating detection sensor (41), and the logic circuit (44), and the thermistor (5) and the seating detection sensor (41) have extremely low power consumption, and
Each electromagnetic valve (V1Hν2) needs to be energized only when the valve is opened and closed, so power consumption is low, so the dry battery (0) has a long life and can be used for a long period of time without replacing the dry battery (D).

In addition, power consumption can be further reduced by the seating detection sensor (41) intermittently emitting ultrasonic waves or infrared rays. A microswitch is provided at a position that receives the body's weight, and the switch is interposed between the control device (C) and the power supply battery (0), and the control device (C) is switched off from the power supply battery (0) only when the human body is seated. D) so that no power is consumed when no human body is seated.

With the above configuration, the present invention uses a thermostatic mixing valve (T) to mix hot water from the hot water pipe (1) with water from the water supply pipe (1).
2) to produce mixed hot water at a temperature set by the adjustment knob (25), and the water from the hot water pipe (1).
Even if the internal pressure of the water supply pipe (2) fluctuates, the constant flow valve (304)
Since the flow rate is regulated by the thermostatic mixing valve (■), there is little variation in the temperature and flow rate of the mixed hot water flowing out from the thermostatic mixing valve (■), which has the effect of preventing discomfort to the user.

FIG. 6 is an explanatory longitudinal cross-sectional view of a solenoid valve using a latching solenoid.

FIG. 7 is a cross-sectional explanatory diagram of a thermostatic mixing valve.

FIG. 8 is a block diagram showing the configuration of the control device.

^): Private cleaning device ■): Thermostatic mixing valve V1) (V2
): 'S solenoid valve using latching solenoid): Hot water pipe 2): Water supply pipe 3) (4): Constant flow valve

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the conceptual overall configuration of a private part cleaning device according to the present invention. FIG. 2 is a cross-sectional explanatory diagram of a constant flow valve. FIG. 3 is a sectional view taken along line II in FIG. FIG. 4 is a cross-sectional explanatory diagram of a constant flow valve. FIG. 5 is a sectional view taken along line ■-■ in FIG.

Claims (1)

[Scope of Claims] 1) In a private parts cleaning device (A) configured to receive hot water and water from the outside and to discharge and stop the mixed hot water whose temperature is adjusted to an appropriate temperature by user's operation, the hot water supply pipe ( A thermostatic mixing valve (T) is installed at the confluence of hot water supply pipe (1) and water supply pipe (2), and a constant flow valve (3) is installed in the middle of hot water supply pipe (1) and water supply pipe (2), or on either side. (4)
A private parts cleaning device characterized by being provided with.