JPS5930076Y2 - Drain plug of water tank for body washing equipment - Google Patents

Description

[Detailed description of the invention] The present invention is an improvement of the drain plug of a water tank for human body washing equipment, and in particular, the drain plug itself for draining the washing water tank has a plug structure with a check valve as a water supply port to the water tank. In a flushing type toilet bowl, which has a local bath solution nozzle and is equipped with a means for jetting hot water and automatically flushing the local area with a jet of water, the toilet bowl has a local bath solution nozzle which is a dual-purpose component means for storing hot water. The tank is equipped with a drain plug for purposes such as repair.

In various configurations of flushing toilets of this type, the present invention has the following features:
Cold water is supplied from the water storage tank to the hot water tank in response to the operation of moving the cleansing hot water injection nozzle (hereinafter referred to as the nozzle) from its rest position to the position where it sprays directly below the local area for use. The above-mentioned drain and cold water replenishment port of a washing water tank of the type that starts the pump means for supplying water and pushes out the stored hot water in the hot water tank to the nozzle according to the water supply pressure.
The purpose of this invention is to provide an improved technical means particularly suitable for use as a means of water replenishment, which integrates a cold water supply port and a drain plug by means of a shaped structure with a built-in check valve in the drain plug. , which is characterized by a simplified structure.

Hereinafter, an embodiment will be explained with reference to the drawings. In a flushing type toilet bowl, which is schematically shown as a system diagram in FIG. The nozzle 3, which is mounted so as to be able to take different positions, pumps the hot water in the hot water storage tank 4 as usual, via the regulating valve 5 installed at the base of the pipe inside the hot water storage tank 4. The water is injected from the nozzle tip 3b as shown in the illustrated example, and the hot water storage tank 4 includes a heating means 7, such as a sheathed wire heater, for heating the supplementary cold water from the reservoir 6;
Thermostat means (not shown) for automatically adjusting the action of the heating means 7 according to the temperature of the stored water is appropriately provided.

As described above, the nozzle 3 is mechanically connected and has an operating lever 8 attached to the side of the hot water storage tank 4 in order to selectively change the position between the rest position 3a and the use state shown by the solid line. In addition, in this operation mechanism path, when the nozzle 3 is turned to the use position, a normally open switch 9 that closes the circuit in response to this rotation is operated by an appropriate interlocking means (not shown). It is provided so that it can be turned on and off.

The switch 9 is connected to control the operation of the feed pump 10 in the reservoir 6, and when the switch 9 is closed, that is, in response to the operation to use the fountain from the nozzle 3, the feed pump 10 supplies the cold water in the reservoir 6 as follows. The hot water is supplied to the hot water storage tank 4 via the drain plug 11 with a check valve according to the present invention, which will be described in detail.

The structure of the drain plug 11 will be explained with reference to FIG.

In other words, the drain port provided at the bottom of the hot water storage tank 4)
A plug body 12 is screwed onto the lower end of the drain port 4a in a manner that closes the lower opening of the drain port 4a.
4 to the feed pump 10.

A valve chamber 15 is formed at the upper end of the conduit 13 and opens above the plug body 12, and a check valve structure is provided within the valve chamber 15.

That is, a guide ring 17 having a plurality of water inlets 16 is provided at the upper end of the valve chamber 15 so as to cover the valve chamber 15, and a stem 18 is slidably supported by passing through the hub portion 17a of the guide ring 17a below -L. A valve head 19 is supported at the lower end of the valve.

The valve head 19 is biased downward by a spring 20 wound around the stem 18 between the hub portion 17a, and thereby the hemispherical valve head 19 is attached to the upper end 1-21 of the conduit 13. The valve seat is normally seated on the valve seat, and the valve is opened only when water supply pressure from below the pipe line 13 acts on the valve head 19 and bends the spring 20.

The plug body 12 is equipped with a non-return function in the upper part,
The entire check valve can be removed from the hot water storage tank 4 by grasping the flange 12a and loosening the threaded connection with the drain port 4a.

Further, when screwing it on, a suitable backing 21 is sandwiched to seal the open end of the drain port 41 liquid-tightly.

In the configuration L below, the guide ring 17 may be configured to be fixed to the side of the plug body 12 at the opening edge of the valve chamber 15, but it is not necessary to do so and may simply be clamped. It is something.

The drain plug with a check valve of the present invention has the above structure, and when unnecessary surplus water is drained from the hot water storage tank 4 in response to other requirements of the repair tool, the plug body 12 is connected to the drain port as described above. )-4a is loosened and removed, the check valve portion is also removed at the same time, thereby allowing excess water to be removed.

As shown in the figure, when the nozzle 3 is screwed on, the switch 9
is turned on and the feed pump 10 is driven, the resulting feed water pressure from the reservoir 6 acts on the valve head 19,
The valve is opened against the spring 20, and the newly supplied cold water pushes out the hot water that had been stored in the hot water storage tank 4 through the regulating valve 5 to the nozzle. As shown in FIG. 1, hot water is jetted upward from the tip 3b to wash a local part of the human body (not shown). 9 is opened and the feed pump stops driving.
Correspondingly, the water pressure on the pipe line 13 side decreases, and the valve head 19 seats and closes due to the elasticity of the spring 20, and in this state, the replaced water in the hot water storage tank 4 is heated via the heating means 7, etc. Until the next washing use, the temperature is adjusted and heated as usual to maintain the required appropriate temperature.

As described in Section 1-1, the technical means of the present invention in which a water supply faucet with a check valve and a drain faucet are integrated has a simple structure because there is no need to provide an independent drain faucet means for the hot water storage tank. It is easy to manufacture, and in addition, it can be easily attached and detached not only when draining water, but also when repairing and inspecting the check valve structure on the faucet side, making it extremely convenient in practical terms. be.

[Brief explanation of drawings]

FIG. 1 is a system diagram schematically showing a combination of a locally flushing toilet equipped with the device of the present invention and related equipment, and FIG. 2 is an enlarged longitudinal sectional view of the main parts of the present invention. 3: Nozzle, 3a: Nozzle tip, 4: Hot water storage tank,
4a: Drain port, 7: Heating means, 8: Operation lever, 9
: Switch, 10: Feed pump, 12 Nib Lug button
113: Pipeline, 15: Valve chamber, 16: Water hole, 17: Guide ring, 18: Stem, 19: Valve head, 20: Spring, 21: Backing.

Claims (1)

[Scope of utility model registration request] Hot water for use in combination with a toilet bowl having a nozzle for local cleansing and a means for jetting hot water from the tip of the nozzle through an operating means during use to flush a local part of the human body. In a regulated heating type hot water storage tank for storing water, a plug body is attached to the top of the plug body which is screwed into a drain port provided at the bottom of the hot water storage tank.
A valve chamber is formed that communicates with a normal passage passing through the pipe from above and below, and a check valve is provided in the valve chamber to introduce make-up water from below the pipe into the hot water storage tank, and the plug body is connected to the hot water storage tank through a backing. A drain plug for a water tank for a human body washing device, characterized in that it is configured to be screwed into the drain port in a liquid-tight manner.