JPH0421908Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a sanitary cleaning device having a configuration including a nozzle device that spouts hot water for cleaning.

[Conventional technology]

Conventionally, sanitary cleaning equipment that spouts cleaning hot water has
A hot water storage tank that heats and stores cleaning water, a nozzle that moves back and forth between the storage position and the cleaning position and spouts hot cleaning water are arranged, and a piping system such as a solenoid valve that opens and closes a flow path is installed between the hot water storage tank and this nozzle. It is the composition.

This piping system is equipped with a vacuum breaker that discharges all the accumulated cleaning water in the flow path to the nozzle after cleaning is completed and prevents the low-temperature cleaning water from spouting out during re-cleaning.

Conventional vacuum breakers, for example,
As shown in FIG. 6, the device described in Japanese Patent No. 90279 is provided with valve seats 52 and 53 at the upper and lower positions of a main body 51 that communicates with a hot water storage tank 50,
A valve body 54 that comes into contact with and separates from 2 and 53 is arranged,
The valve body 54 is configured to open and close the flow path to the distribution pipe 55 connected to the nozzle 56.

At the start of cleaning, the valve body 54 rises due to the water pressure from the hot water storage tank 50 and separates from the valve seat 52 to open the cleaning water flow path, and also seats on the valve seat 53 to be cut off from the outside air, and when the cleaning is stopped, the water pressure decreases. Therefore, the valve element 54 descends to close the cleaning water flow path, open the valve seat 53 side, and communicate the nozzle 56 side flow path with the atmosphere, thereby allowing all of the accumulated water to be discharged from the nozzle.

[Problem that the invention attempts to solve]

However, in the conventional configuration, since the main body 51 is separate from the hot water storage tank 5, a connecting pipe 57 and a cap nut 58 are required for fixation, and the main body 51 itself is also constructed by threading and connecting multiple members. Must.

Therefore, the number of parts is large, the assembly work is complicated, and there are problems in terms of productivity, which are factors that lead to high costs.

Furthermore, since there are a large number of parts, the connections between each part must be sealed, which increases the possibility of water leakage.

Furthermore, as shown in FIG. 6, since the upper part of the valve body 54 is open, if there is a large amount of water at the time of overflow, there is a high possibility that water will leak from there to the outside.

Therefore, the purpose of this invention is to improve production efficiency and reduce costs by reducing the number of vacuum breaker component parts and simplifying assembly work in sanitary cleaning equipment equipped with a vacuum breaker in the flow path to the nozzle device. The purpose is to improve sealing performance and prevent water leakage.

[Means for solving problems]

The present invention includes a hot water storage tank that heats and stores cleaning water and a nozzle device that communicates with the hot water tank and spouts the cleaning water in the casing, and a vacuum chamber that opens the flow path to the nozzle device to the atmosphere after cleaning is stopped. In a sanitary cleaning device in which a breaker is arranged, the vacuum breaker is arranged in a cylindrical part that projects upward from an outlet opening at the upper end of the hot water storage tank and is provided integrally with the hot water storage tank, and that is closely fixed to the cylindrical part and the nozzle. A cover integrally equipped with a connection part that communicates with the device and an open pipe that communicates with the atmosphere, and a hot water storage tank that is arranged so as to be movable up and down in a guide part whose upper end is sealed inside the cover, and with the upper end surface of the cylindrical part as a valve seat. It is characterized by comprising a valve body that opens the cleaning water flow path by the water pressure of the cleaning water from the valve body.

[Effect]

The vacuum breaker of the present invention consists of three parts: a cylindrical part formed integrally with the hot water storage tank, a cover tightly fixed to this cylindrical part, and a valve body that moves up and down within the cover to open and close the washing water flow path. It is composed of elements.

This significantly reduces the number of parts. Furthermore, since the seal portion is located only at one location between the cylindrical portion and the cover, sealing performance is improved. Furthermore, since the guide part of the cover is sealed, overflow water will not leak outside.

〔Example〕

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

FIG. 1 is a perspective view of a flush toilet equipped with a sanitary cleaning device A according to the present invention, where B is the toilet main body, C is a flush water tank, and D and E are a toilet seat and a toilet lid.

The sanitary cleaning device A has a mounting board 1 that functions as a lower casing and fixes equipment for cleaning and drying, and casings 2, 3 for the upper, side, and operation parts.
4 are connected and fixed to the toilet main body B.

FIG. 2 is a schematic plan view of the inside of the sanitary washing device A with the upper casing 2 removed, and the side casing 3.
A hot water storage tank 10 for heating and storing cleaning water is disposed inside, and a nozzle device 11 for spouting cleaning water is disposed approximately at the center of the mounting board 1.

12 is a communication pipe connected to an external wash water supply pipe (not shown); 13 is a valve unit equipped with a pressure reducing valve, a solenoid valve and a check valve that are opened and closed by operation of an operating section; and 14 is this valve unit 13. An inlet pipe that supplies washing water from the hot water tank 10 to the hot water storage tank 10.
The water supplied from 2 is heated by a heater (not shown) in the hot water tank 10.

Reference numeral 15 denotes a cylinder of the nozzle device 11, which houses a tubular nozzle body 16 that can move forward and backward, and has an electric motor 17 arranged at its base end to drive the nozzle body 16 forward and backward. Incidentally, F is a hot air fan that performs a drying function by blowing out hot air.

Further, reference numeral 18 denotes a cleaning water supply pipe that communicates and connects the hot water tank 10 and the cylinder 15 of the nozzle device 11, and a vacuum breaker 20 is connected to the base end of the pipe.
It is placed integrally on the top surface.

FIG. 3 is an enlarged cross-sectional view showing the upper end of the hot water storage tank 10, in which a cylindrical portion 22 that protrudes upward is formed at the outlet 21 portion for supplying heated cleaning water to the nozzle device 11. The end face serves as a valve seat 23 for flushing water.

Reference numeral 24 denotes a cover integrated with the hot water tank 10 with screws 25 so as to wrap around the entire cylindrical portion 22, and FIG. 4 is a plan view thereof, and FIG. 5 is a cross-sectional view taken along the - line in FIG. 4. A hollow guide portion 26 is formed at the upper end of the cover 24, and the lower end thereof serves as a valve seat 27 for opening to the atmosphere. In addition, the cleaning water supply pipe 1
A connecting part 28 for connecting the parts 8 is formed on the lower side, and an open pipe 29 for opening to the atmosphere is formed in the guide part 26. The upper end of the guide portion 26 itself is sealed.

Reference numeral 30 denotes a valve body having a shaft portion 31 that is slidable within the guide portion 26 of the cover 24, and the upper and lower surfaces of the flange portion 32 at the lower end contact and separate from the valve seats 23 and 27, and the cleaning water flow path and the atmosphere open side flow are connected to each other. Opens and closes roads.

A flexible vinyl pipe 40 is connected to the open pipe 29, and its open end is located near the nozzle device 11, and joins a vinyl pipe 41 that communicates with the check valve of the valve unit 13 midway.

As described above, the vacuum breaker 20 according to the present invention includes the cylindrical portion 22, the cover 24, and the valve body 30 of the hot water storage tank 10, and is assembled using a part of the hot water storage tank 10.

In the above configuration, when the solenoid valve in the valve unit 13 is opened by the operating section, water is supplied from the water inlet pipe 14 to the hot water storage tank 10, and at the same time, the already heated stored hot water is supplied from the outlet 21 to the vacuum breaker. 20. Due to the water pressure caused by this inflow, the valve body 30 is guided by the guide part 26 and rises, and the flange part 32 is moved upward toward the valve seat 2 on the hot water tank 10 side
3 to open the washing water flow path, and the upper surface of the flange portion 32 seats on the valve seat 27 on the cover 24 side.

Thereby, the cleaning water from inside the hot water storage tank 10 flows from the vacuum breaker 20 into the cleaning water supply pipe 18 and is supplied to the cylinder 15, so that the cleaning water can be jetted from the nozzle body 16 in the cleaning position.

Next, when the electromagnetic valve is closed, the discharge of cleaning water from the outlet 21 is also stopped, and the valve element 30 is lowered due to the drop in water pressure. Due to this lowering of the valve body 30, the flange portion 32 of the valve body 30 separates from the valve seat 27 on the open pipe 29 side and simultaneously seats on the valve seat 23 of the outflow port 21. As a result, the flow path on the hot water storage tank 10 side is blocked, the open pipe 29 and the wash water supply pipe 18 are communicated via the valve seat 27, and the wash water flow path inside the nozzle body 16 is exposed to the atmosphere through the open pipe 29. It will be released.

By opening this flow path, the water remaining in the cleaning water flow path from the vacuum breaker 20 to the nozzle body 16 can be discharged by flowing down naturally in the direction of the nozzle body 16, and the low-temperature cleaning water when reused can be discharged. Can prevent blowouts. In addition, when discharging this accumulated water, the level of the vacuum breaker 20 is adjusted to the level of the nozzle body 16.
Needless to say, it is possible to use the siphon effect to ensure smooth discharge.

In addition, during assembly work, the vacuum breaker 20 can be constructed by simply fixing the cover 24 integrally using the top surface of the hot water storage tank 10, so it can be installed at a location where piping and electrical equipment wiring are complicated. It is easy to set up. Also cover 24
There is no need to apply any seal other than the seal between the cylindrical portion 22 and the cylindrical portion 22, and the sealing performance is improved.

[Effect of idea]

In the present invention, the vacuum breaker placed between the hot water storage tank and the nozzle device has a simple structure, so assembly is easy and productivity can be improved, and the number of parts can be reduced, so costs can be reduced. Furthermore, since sealing is required at only one location between the cylindrical portion and the cover, the sealing performance is improved compared to the conventional case where there are several locations. Furthermore, since the upper end of the guide portion of the cover is not open but sealed, overflow water does not leak to the outside, improving reliability.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a flush toilet equipped with a sanitary cleaning device according to the present invention, Fig. 2 is a schematic plan view of the inside of the device, Fig. 3 is an enlarged sectional view of the vacuum breaker part, and Fig. 4 is a cover. FIG. 5 is a sectional view taken along the - line in FIG. 4, and FIG. 6 is a sectional view of a conventional example. 10... hot water storage tank, 11... nozzle device, 18...
...Washing water supply pipe, 20...Bacillary breaker,
21...Outlet, 22...Cylinder part, 23...Valve seat,
24...cover, 25...screw, 26...guide section, 27...valve seat, 30...valve body.

Claims (1)

[Scope of utility model registration request] A hot water storage tank 10 for heating and storing cleaning water and a nozzle device 11 for communicating with the hot water storage tank 10 and spouting the cleaning water are provided in the casing, and a flow path to the nozzle device 11 is opened to the atmosphere after cleaning is stopped. In the sanitary cleaning device in which the breaker 20 is arranged, the vacuum breaker 20 is provided with a cylindrical portion 22 that is integrally provided with the hot water storage tank 10 and protrudes upward from a portion of the outlet 21 that opens at the upper end of the hot water storage tank 10; A cover 24 is closely fixed to the nozzle device 11 and integrally includes a connecting portion 28 communicating with the nozzle device 11 and an open pipe 29 communicating with the atmosphere, and the upper end of the cover 24 is disposed in a guide portion 26 which is sealed and can be raised and lowered freely. A sanitary washing device characterized in that the valve body 30 opens the washing water flow path by the water pressure of the washing water from the hot water storage tank 10, with the upper end surface of the cylindrical portion 22 serving as a valve seat.