JPH11158977A - Sanitary washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sanitary washing device, in which a nozzle can be operat ed quickly. SOLUTION: A changeover valve 7 is closed together with a main valve 4 by a stop signal after hot water is ejected from a nozzle 8 on one side and used, passages to first and second nozzles 8, 9 are closed, and the nozzle 8 on the used side is returned to the place of housing. The changeover valve 7 is opened to the used nozzle 8 side, and residual pressure in a hot water tank 1 is let to escape while the nozzle 8 is washed.

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 provided in a toilet.

[0002]

2. Description of the Related Art Conventionally, in a direct water supply type sanitary washing apparatus in which tap water is directly injected into a hot water tank and washing water is ejected from a nozzle by tap water pressure, washing water is ejected from one nozzle. After returning the used nozzle to the original storage position, the water in the hot water tank is flowed to the other nozzle to release the residual pressure of the hot water tank, and the used nozzle returns to the storage position. Conventionally, there is a problem that it takes time to release the residual pressure in the hot water tank, and the used nozzle returns slowly.

[0003]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above-mentioned conventional problems, and has as its object to provide a sanitary washing apparatus capable of quickly returning a used nozzle to a storage position. The first point is that when tap water flows into the hot water tank via the main valve, the hot water in the hot water tank is pushed out, and the hot water passes through the switching valve that switches between the first and second nozzles. In the sanitary washing device having a configuration in which the nozzle on one side is pushed out and is ejected from the nozzle, the switching valve is closed together with the main valve by a stop signal after the hot water is ejected from the one nozzle and used, and the first valve is closed. Closing the passage to the second nozzle, and opening the switching valve to the used nozzle side after a certain period of time when the used nozzle is returned to the storage position by the return means of the nozzle, By flowing out to the nozzle used hot water in the water tank is that configured to clean the nozzle while Relieve residual pressure of the hot water tank. Further, the second gist is that when tap water flows into the hot water tank via the main valve, the hot water in the hot water tank is pushed out, and the hot water passes through the switching valve that switches between the first and second nozzles. In the sanitary washing device having a configuration in which the nozzle on the side is pushed out and ejected from the nozzle, when a signal for switching the nozzle after the hot water is ejected from the one side nozzle and used is inputted, the first valve is switched through the switching valve. After the passage to the second nozzle is closed for a certain period of time and the used nozzle is returned to the storage position by the return means of the nozzle, the switching valve is opened to the other nozzle and the hot water is opened. The remaining pressure in the tank is used for pushing force of the nozzle on the other side.

[0004]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the arrangement of the sanitary washing device.
A water supply pipe 2 is connected to the hot water tank 1, and the water supply pipe 2 is connected to a water pipe so that tap water flows from the water pipe, and a switch (not shown) is turned on.
Then, the main valve 4 is opened and the tap water adjusted to a constant pressure by the pressure adjusting valve 3 flows into the hot water tank 1. A heater 5 is provided in the hot water tank 1 so that tap water is heated by the heater 5.

When the main valve 4 is opened, tap water is supplied into the hot water tank 1, and the hot water in the hot water tank 1 is pushed out by the tap water, passes through the vacuum breaker 6, passes through the switching valve 7, and goes through the first valve. Nozzle 8 or second nozzle 9
, So that the nozzle is pushed forward against the spring, and hot water is ejected from the tip side.

For example, the first nozzle 8 is a nozzle for washing a local part of a user, the second nozzle 9 is for jetting washing water toward a female part,
The switching valve 7 is provided with the first nozzle 8 or the second nozzle 9
It is formed in a three-way valve structure capable of switching the passage to the valve and adjusting the flow rate by driving a stepping motor, and has a structure already filed as Japanese Patent Application No. 9-186463. .

As shown in FIG. 1, when the user turns on the stop switch after the hot water is ejected from the first nozzle 8 and used, the main valve 4 is closed by the stop signal and the switching valve 7 is closed at the same time. The switching valve 7 is connected to the first
The passages to the nozzle 8 and the second nozzle 9 are both closed.

That is, as shown in the schematic circuit diagrams of FIGS. 2 and 3, in FIG. 2, only the first nozzle 8 side is opened and the hot water in the hot water tank 1 is pushed out to the first nozzle 8, FIG. 3 shows a state in which the switching valve 7 is closed together with the main valve 4, and FIG. 3 shows a state in which the switching valve 7 is closed, as shown in FIG.
Is to close the passages to the first and second nozzles 8 and 9 side. As shown in the time chart of FIG. 4, when the stop signal is input at P1 in FIG. Origin P
2 to close the passages to the nozzles 8 and 9 and to close the passages to both nozzles 8 and 9 for a certain period of time up to P3. The first nozzle 8 is returned to the original storage position by a return force of a spring provided in the nozzle.

In this embodiment, when the first nozzle 8 is completely returned to the original storage position, the switching valve 7 is driven so as to open the used first nozzle 8 as shown in FIG. Since the main valve 4 is kept closed, the residual water remaining in the hot water tank 1 causes the hot water in the hot water tank 1 to flow out to the first nozzle 8 side, and the hot water is gradually discharged from the first nozzle 8. And the residual pressure in the hot water tank 1
The first nozzle 8 is favorably washed by the hot water that escapes from the nozzle 8 and flows out of the hot water tank 1 to the first nozzle 8 side.

That is, in this example, when a stop signal is input after the hot water is ejected from one nozzle 8 and used,
The control unit closes the switching valve 7 together with the main valve 4 so that the pressure of the hot water tank 1 does not act on the nozzles 8 and 9, and stores the nozzle 8 used during this time by the spring force provided in the nozzle. Position, and then the control unit opens the switching valve 7 to the used nozzle 8 side to release the residual pressure in the hot water tank 1 from the used nozzle 8 side,
The nozzle 8 used at the same time is to be washed with hot water flowing out of the hot water tank. When a stop signal is input, the passage to both nozzles is once closed by the switching valve 7, so that The used nozzle 8 can return to the original storage position, the return time of the used nozzle 8 can be made shorter than before, and the used nozzle 8 can be returned by the residual pressure in the hot water tank 1. It is designed to enable effective cleaning.

Next, the control shown in the time chart of FIG. 5 is another example of the control. For example, in FIG. 5, the user uses the second nozzle 9 while the hot water is ejected from the first nozzle 8 to use it. When the switching signal to the second nozzle 9 is input to the control unit at P1 in FIG. 5 when the operation switch is turned on, the control unit drives the switching valve 7 to the origin position at P2 and returns to P2. The first nozzle 8 and the second nozzle 9
Are closed for a certain period of time until P3, and within the period from P2 to P3, the used first nozzle 8 is returned by the spring and returned to the original storage position, and thereafter In P4, the switching valve 7 is connected to the second nozzle 9
Side, the hot water in the hot water tank 1 is pushed out to the second nozzle 9, the second nozzle 9 is extended, and the hot water is ejected from the second nozzle 9, and the second nozzle 9 is extended. Since the residual pressure in the hot water tank 1 remains at this time, the residual pressure in the hot water tank 1 acts in a direction to push out the second nozzle 9, and the extrusion time of the second nozzle 9 is shortened as compared with the conventional case. Can be done. That is, in the control of FIG. 5, the used first nozzle 8 is returned to the storage position, and at the same time, the second nozzle 9 can be extended by applying the residual pressure in the hot water tank 1 and the remaining nozzle in the hot water tank 1 can be extended. The second nozzle 9 can be quickly pushed out by effectively utilizing the pressure.

Next, FIG. 6 shows the first nozzle 8 and the second nozzle 8.
This control is performed when the cleaning switch for cleaning the nozzle 9 is turned on. In FIG. 6, the switching valve 7 is set to the first position at P1.
Open to the nozzle 8 side. In this case, since the switching valve 7 has a structure capable of adjusting the flow rate via the stepping motor as described above, the flow rate of the first nozzle is controlled within a time period from P1 to P2 at a flow rate that does not extend the nozzle 8 by controlling the flow rate to be small. The first nozzle 8 is washed by flowing the hot water and hot water to the side of the second nozzle 8, and then the switching valve 7 is set to the second nozzle 9 at P3.
Side, and the hot water flows from the hot water tank 1 into the second nozzle 9 for a predetermined time until P4.
After that, at P5, the switching valve 7 is returned to the origin, and control is performed so as to close the passages to both nozzles 8, 9. In addition, since the position of the origin of the switching valve 7 may be shifted, the control unit may be configured to perform an operation of confirming the origin position of the switching valve 7 after that.

[0013]

According to the present invention, when tap water flows into the hot water tank via the main valve, the hot water in the hot water tank is pushed out, and the hot water passes through the switching valve for switching the first and second nozzles. In the sanitary washing device having a configuration in which the nozzle on either side is pushed out and ejected from the nozzle, the switching valve is closed together with the main valve by a stop signal after the hot water is ejected from the one side nozzle and used. 1, the passage to the second nozzle is closed, and after a certain time when the used nozzle is returned to the storage position by the return means of the nozzle, the switching valve is opened to the used nozzle side, and the hot water By using a configuration in which the hot water in the tank is discharged to the used nozzle to clean the nozzle while releasing the residual pressure in the hot water tank, the hot water is ejected from one nozzle and used. When the stop signal was input to the main valve and the switching valve, the used nozzle was returned to the original storage position, and then the switching valve was opened to the used nozzle side to use the hot water in the hot water tank. The residual pressure in the hot water tank can be released by flowing to the nozzle, the nozzle used earlier can be returned to the storage position earlier than before, and the nozzle used using the residual pressure in the hot water tank can be used better It has the effect of being able to be washed.

When tap water flows into the hot water tank via the main valve, the hot water in the hot water tank is pushed out, and the hot water passes through the switching valve for switching between the first and second nozzles, and is connected to either side. In the sanitary washing device having a configuration in which a nozzle is pushed out and ejected from the nozzle, when a signal for switching the nozzle after being used by ejecting hot water from the one side nozzle is input, the first and second via the switching valve. After the passage to the nozzle is closed for a certain time and the used nozzle is returned to the storage position by the return means of the nozzle, the switching valve is opened to the other nozzle side, and the inside of the hot water tank is opened. Since the residual pressure is used for the pushing output of the other nozzle, when a switching signal to the other nozzle is input during use of the one nozzle, a passage to both nozzles is provided by the switching valve. The nozzle on the side that was used for the purpose can be returned to the storage position early, and then switched to the nozzle on the other side to effectively use the residual pressure in the hot water tank to extend the nozzle on the other side quickly. In addition, the used nozzle can be accommodated quickly and the nozzle on the other side can be pushed out quickly, which has an effect that the operation becomes faster than before.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the arrangement of a sanitary washing device provided in a toilet.

FIG. 2 is a schematic configuration diagram showing a passage state when a first nozzle is used.

FIG. 3 is a schematic configuration diagram of a passage in a state where both nozzles are closed by a switching valve.

FIG. 4 is a time chart of control of the first embodiment.

FIG. 5 is a time chart of control of the second embodiment.

FIG. 6 is a time chart of nozzle cleaning control.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hot water tank 2 Water supply pipe (water pipe) 4 Main valve 7 Switching valve 8 1st nozzle 9 2nd nozzle

Claims (2)

[Claims] 1. When tap water flows into a hot water tank via a main valve, hot water in the hot water tank is pushed out,
In a sanitary washing device having a configuration in which the hot water is pushed through a switching valve that switches between the first and second nozzles and pushes out one of the nozzles, the hot water is blown out from the one nozzle and used. With the stop signal, the switching valve is closed together with the main valve to close the passage to the first and second nozzles, and after a certain period of time when the used nozzle is returned to the storage position by the return means of the nozzle. The switching valve is opened to the used nozzle side, and the hot water in the hot water tank is discharged to the used nozzle to clean the nozzle while releasing the residual pressure in the hot water tank. Sanitary cleaning equipment. 2. When tap water flows into a hot water tank via a main valve, hot water in the hot water tank is pushed out,
In a sanitary washing device having a configuration in which the hot water is pushed through a switching valve that switches between the first and second nozzles and pushes out one of the nozzles, the hot water is blown out from the one nozzle before use. When a signal for switching the nozzle was input, the passages to the first and second nozzles were closed for a predetermined time via the switching valve, and the used nozzle was returned to the storage position by the return means of the nozzle. later,
A sanitary washing device wherein the switching valve is opened to the other nozzle side, and the residual pressure in the hot water tank is used for pushing force of the other nozzle.