JP2001173037A - Kitchen and sanitary device for cold district and method of draining water from the device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To drain water from a kitchen and sanitary device by forcibly filling air into the device without relying upon the replacement of air from a water drain plug part. SOLUTION: A compressed air filling port opening to the outside through a check valve part is provided in a kitchen and sanitary device for a cold district having a water drain plug, and compressed air is filled from the compressed air filling port into the kitchen and sanitary device so as to forcibly drain the water inside the kitchen and sanitary device through the water drain plug part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plumbing device for discharging water from a plumbing device when there is a possibility of freezing in a cold region, and a method of draining the plumbing device.

[0002]

2. Description of the Related Art As shown in Japanese Unexamined Patent Publication No. Hei 8-270834, a conventional water plumbing device for a cold region has a drain plug at the lower part of a plumbing device such as a faucet body or at the lower portion of an eccentric leg. When there is a risk of freezing, the drain plug is opened and the water in the plumbing fixture is discharged from the drain plug.

[0003]

However, in the conventional water plumbing equipment for cold regions, since the water in the plumbing plunger is discharged from the water drainage plug using the gravity, the time required for water drainage is reduced by the water drainage plug. It takes a long time depending on the air exchange from the part, and a water film stretches due to surface tension on the drain plug part,
Water does not escape well from the drain plug and water accumulates in the plumbing fixture and freezes.

[0004] The present invention solves the above-mentioned disadvantages, and forcibly injects air into a plumbing fixture and discharges water from the plumbing fixture without depending on air exchange from a drain plug. The purpose is.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, there is provided a compressed air injection port which is opened to the outside via a check valve in a cold district water plumbing device provided with a drain plug. The compressed air is injected into the plumbing device from the compressed air injection port, and the water in the plumbing device is forcibly discharged from the drain plug.

In this way, by injecting the compressed air into the plumbing device from the compressed air inlet, the water in the plumbing device can be quickly drained without depending on the air exchange from the drain plug. In addition, since the water film of the drain plug portion is destroyed by the compressed air, it is possible to prevent water from remaining in the plumbing device due to the water film.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION If the means for injecting compressed air is an air pump device for a vehicle that inflates tires such as bicycles, it is installed in most homes, so that it is easy to drain water without requiring new equipment. Can be performed.

If the means for injecting compressed air is a container provided with a bellows-type air storage chamber and an injection nozzle, the structure is extremely simple and inexpensive, and it can be easily brought into the bathroom or placed in the bathroom. I can do it.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a faucet fitting showing an example of a water supply device for a cold district according to the present invention, and FIG. 2 is a sectional view of the same. 3 is a cross-sectional view of the eccentric leg, FIG. 4 is a cross-sectional view of a drain plug, FIG. 5 is a cross-sectional view of an air inlet, FIG. 6 is an external view of a main part of a vehicle pump device, and FIG. Sectional view of the air inlet port showing the state,
FIG. 8 is a sectional view of a container for injecting compressed air.

In FIG. 1, reference numeral 1 denotes a plumbing fixture such as a faucet fitting. The inner water passages 4a of the main body 2 and the eccentric leg 3 are provided at the lower part of the main body 2 and the lower part of the eccentric leg 3 of hot water, respectively. Drain plugs 5a and 5b communicating with 4b are provided, and compressed air inlets 6a and 6b are provided on the upper part of the main body 2 and the eccentric leg 3.

The faucet fitting 1 has an automatic temperature control valve mechanism 8 internally driven by a temperature sensitive spring 7 to change the mixing ratio of hot and cold water.
A known thermostat-type shower bath fitting provided with a switching valve mechanism 11 capable of switching between water stoppage and a water discharge port 9 side and a shower apparatus 10 side (for example, JP-A-8-7503).
7), the temperature control valve mechanism 8, the temperature control handle 12 for operating the switching valve mechanism 11, and the switching handle 1
3 is provided on the side of the main body 2.

The eccentric leg 3 of hot water is connected to a hot water supply / water supply pipe 14 on the upstream side of the internal water passage 4b, and a drain plug 5b is provided at a lower portion of the water passage 4b, and a water stop plug 15 is provided at an intermediate position.
And communicates with the water passage 4a of the main body 2 through the check valve 16.

The drain plugs 5a, 5b are provided with a valve seat 18 formed around a valve seat opening 17, and a valve body 20 which is provided in contact with or separated from the valve seat 18 and provided with a drain groove 19 in the axial direction. A knob 21 provided integrally with the valve body 20 and protruding to the outside, and by separating the valve body 20 from the valve seat 18,
The water in the water passages 4a and 4b passes through the valve
Is discharged to the outside of the main body 2 and the eccentric leg 3 via a drain groove 19 provided in the eccentric body.

The compressed air inlets 6a and 6b are open at both ends, and the base opening 22 is a cylindrical valve case 23 communicating with the water passages 4a and 4b. Injection port 25 into which nozzle part 24 is inserted
Nut-shaped guide member 2 having a cylindrical portion 26 with a hole
7, a valve seat member 28 sandwiched between the valve case 23 and the guide member 27, and a valve body 3 housed in the valve case 23 and constantly urged by a spring 29 toward the valve seat member 28.
0 is provided.

That is, the valve seat member 28, the spring 29, and the valve body 30
The check valve portion A is constituted by such means.

The valve seat member 28 is formed in a disk shape in which a reinforcing member 31 such as a metal plate is insert-molded into an elastic body 32 such as rubber, and a through hole 33 is formed in the center portion into which the injection nozzle portion 24 is fitted. Have been.

The inner peripheral wall of the through hole 33 has a semicircular bulge 34.
When the injection nozzle portion 24 is fitted, airtightness is secured by the bulging portion 34, and the deformation of the valve seat member 28 is prevented by the reinforcing member 32.

The valve body 30 is formed with a seal portion 35 in which a portion that comes into contact with the valve seat member 28 is bulged in a semicircular shape to enhance sealing performance, and is provided outside the seal portion 35 in the axial direction. A notched groove 36 is provided.

Reference numeral 37 denotes a vehicle air pump device provided in ordinary households for injecting air into tires such as a pump type or bellows type bicycle, and has a cylindrical injection nozzle portion 24 at the end of a hose 38 thereof. Have.

Normally, the drain plugs 5a and 5b are closed, the water stop cock 15 is opened, and the temperature control handle 12 and the switching handle 13 are operated to mix the mixed water from the water outlet 9 and the shower device 10. Discharge.

In this state, the compressed air inlet 6
The water passages 4a, 6b are provided with a valve body 30 provided therein, which is in contact with the valve seat member 28 by a spring 29.
The water in b does not leak outside.

If there is a possibility of freezing, the water stopcock 15 is closed, the switching valve mechanism 11 is set to the water stop position, the water drainage plugs 5a and 5b are opened, and the water is injected into the compressed air injection ports 6a and 6b. The nozzle part 24 is inserted, and the vehicle air pump device 37 is inserted.
To compress the compressed air into compressed air inlets 6a, 6b.
The water is supplied into the water passages 4a and 4b.

Then, the compressed air is supplied to the injection nozzle section 24.
Is sealed by the bulging portion 34 so that the compressed air does not leak from the compressed air inlets 6a and 6b, and the compressed air pushes down the valve body 30 to open the check valve portion A, and all the air passes through the groove portion 36. Then, the water enters the water passages 4a, 4b of the main body 2 and the eccentric leg 3, and the water accumulated in the water passages 4a, 4b is forcibly discharged to the outside from the drain plugs 5a, 5b by the compressed air.

At this time, the valve seat 1 of the drain plugs 5a, 5b
Normally, a water film is stretched by the surface tension of the valve 7. Even if the valve body 20 is simply separated from the valve seat 18, the water film prevents air exchange, and the water in the water passages 4 a and 4 b is easily discharged to the outside. However, by supplying compressed air from the compressed air inlet 6 into the water passages 4a and 4b as in the present invention, the water film is broken and the drainage plugs 5a and 5b are replaced by air. The water in the water passages 4a and 4b can be drained in a short time without any trouble.

When the compression operation of the vehicle air pump device 37 is released and air is stored in the vehicle air pump device 37, the valve body 30 contacts the valve seat member 28 with the spring 29 and the check valve portion A Is closed, the air injected into the water passages 4a, 4b does not escape from the compressed air injection ports 6a, 6b.

In this embodiment, since the check valve 16 is interposed between the main body 2 and the eccentric leg 3, when the compressed air is injected from the air inlet 6a provided in the main body 2, the compressed air is injected. Is prevented from moving toward the eccentric leg 3, and the water in the water passage 4 inside the main body 2 is discharged together with the compressed air from the drain plug 5 a provided in the main body 2.

Then, the shower head (not shown) is placed below the main body 2 such as on the floor, and the switching valve mechanism 11 is operated to open the shower device 10 side.
The inside is filled with air, and the air in the shower device 10 can be quickly discharged from the shower head when the air can flow in from the drain plug 5a.

If the water outlet 9 is opened by operating the switching valve mechanism 11, the water in the water outlet 9 is quickly discharged from the water outlet 9 as in the case of the shower device 10 side.

Next, compressed air is injected from the compressed air injection port 6b provided on the eccentric leg 3, but at this time, the drain plug 5a provided on the main body 2 through the check valve 16, the water discharge port 9, the shower device 10 So that compressed air does not escape
By closing the drain plug part 5a of the main body 2, setting the switching valve mechanism 8 to the water stop position, and supplying the compressed air into the eccentric leg 3, the downstream side of the water stop cock 15 of the eccentric leg 3 is provided. Waterway 4
The water of b can also be forcibly discharged to the outside.

Further, the original valve mechanism of the antifreeze valve installed on the upstream side of the pipe 14 is closed, the drain valve mechanism is opened (neither is shown), the water stopcock 15 of the eccentric leg 3 is opened, and If the compressed air is supplied into the eccentric leg 3 with the drain plug 5b closed, the compressed air flows into the upstream pipe 14 from the eccentric leg 3 and the water in the pipe 14 also drains. Can be forcibly discharged to the outside.

Subsequently, the original valve mechanism and the drain valve mechanism of the antifreeze valve installed on the upstream side of the pipe are closed, and the valve parts of other plumbing equipment connected to the pipe are opened one by one, and the valves of other equipment are opened. When the compressed air is injected from the compressed air injection port 6b of the eccentric leg 3 in a state in which the valve is closed, the compressed air reaches another water-supply device with the valve opened via the pipe, and The water in the plumbing system and the plumbing equipment can be discharged to the outside.

By providing the compressed air inlet 6b in the eccentric leg 3, the water in the plumbing equipment and pipes in most households can be forcibly discharged to the outside.

FIG. 8 shows that the means for injecting compressed air is a container 40 made of a synthetic resin such as polyethylene having an injection nozzle portion 24 and a bellows-type air storage chamber 39. The air storage chamber 39 has an air storage chamber. An umbrella-shaped valve 41 is provided which opens in the inflow direction to the air inlet 39 but closes in the outflow direction to the air storage chamber 39.

Then, the injection nozzle 24 is inserted into the compressed air injection ports 6a, 6b, and the air storage chamber 39 is compressed by hand to inject compressed air into the water passages 4a, 4b to drain the water plugs 5a, 5b. Drains water from outside.

At this time, the umbrella-shaped valve 41 is closed, the air in the air storage chamber 39 is injected into the water passages 4a and 4b, and when the compression of the air storage chamber 39 is released, the umbrella-shaped valve 41 is opened and the air is released. It returns to the original state by the elasticity of the bellows while sucking.

Therefore, by repeatedly compressing and releasing the compression of the air storage chamber 39, the compressed air can be repeatedly and continuously injected into the water passages 4a and 4b.

By forming the container 40 made of a synthetic resin such as polyethylene having the injection nozzle portion 24 and the bellows-type air storage chamber 39 in this manner, even if it is placed in the bathroom, it is compact and obstructive. It will not be.

The present invention can be variously modified without being limited to the above-described embodiment.
In addition to bathroom faucet fittings, faucet fittings and stopcocks for washrooms, faucet fittings and stopcocks for kitchens, water purifiers, dishwashers, and ball taps and ball taps that supply water to the toilet washing tank around toilets It may be a water supply pipe, a water stopcock, a sanitary washing device, a gas or oil water heater, a pressure reducing valve, a header used for a resin pipe, or a pipe itself.

As the compressed air inlet, for example, a valve mechanism using rubber for injecting air into a bicycle tube may be applied.

[0040]

As described above, according to the present invention, a water supply device for a cold district having a water drainage plug is provided with a compressed air injection port which is opened to the outside via a check valve. Compressed air was injected into the plumbing device from the drainage device, so that the water in the plumbing device can be quickly and forcibly discharged to the outside regardless of air exchange from the drainage plug, and the drainage Since the water film in the plug portion is broken by the compressed air, it is possible to prevent the water from remaining in the plumbing device due to the water film.

If the means for injecting compressed air is a vehicle air pump device that inflates tires such as bicycles, it is provided in most homes, so that water can be easily drained without requiring new equipment.

If the means for injecting compressed air is a container having a bellows-type air storage chamber and an injection nozzle, the structure is extremely simple and inexpensive, and it can be easily brought into the bathroom or placed in the bathroom. I can do it.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a faucet fitting showing an example of a plumbing fixture for cold regions of the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is a sectional view of the eccentric leg.

FIG. 4 is a sectional view of a drain plug.

FIG. 5 is a sectional view of an air inlet.

FIG. 6 is an external view of a main part of the vehicle air pump device.

FIG. 7 is a cross-sectional view of the air injection port showing a use state.

FIG. 8 is a sectional view of a container for injecting compressed air.

[Explanation of symbols]

 1: Plumbing device 2: Body 3: Eccentric leg 4: Water passage 5: Drain plug 6: Compressed air inlet 7: Temperature sensitive spring 8: Automatic temperature control valve mechanism 9: Water outlet 10: Shower device 11: Switching valve mechanism 12: Temperature control handle 13: Switching handle 14: Piping 15: Water stopcock 16: Check valve 17: Valve seat 18: Valve seat 19: Drain groove 20: Valve 21: Knob 22: Opening 23 : Valve case 24: Injection nozzle part 25: Injection port 26: Cylindrical part 27: Guide member 28: Valve seat member 29: Spring 30: Valve 31: Reinforcing member 32: Elastic body 33: Through hole 34: Swelling part 35 : Sealing part 36: Groove part 37: Air pump device for vehicle 38: Hose 39: Air storage chamber 40: Container 41: Umbrella-shaped valve A: Check valve part

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D060 BB01 BC17 BE20 3H066 AA05 BA38

Claims (4)

[Claims] In a cold plumbing plumbing device having a drain plug for communicating with a water channel and discharging water in the water channel to the outside, the non-return valve mechanism is connected to the water channel of the plumbing device. A plumbing device for cold districts, characterized by having a compressed air injection port opening to the outside through the space. 2. A cold district water plumbing device having a drain plug for communicating with a water channel and discharging water in the water channel to the outside. The device is connected to the water channel of the water plumbing device via a check valve. And a compressed air inlet opening to the outside.The compressed air is injected into the plumbing device from the air inlet and water in the plumbing device is discharged from the drain plug. Method of draining water supply equipment for cold regions. 3. The method according to claim 2, wherein the means for injecting the compressed air is an air pump device for a vehicle provided with an injection nozzle portion. 4. The means for injecting the compressed air is a container provided with a bellows-type air storage chamber and an injection nozzle. The injection nozzle is inserted into the compressed air injection port to compress the air storage chamber and supply water. 3. The method for draining water in a cold district water circulating device according to claim 2, wherein compressed air is injected into the circling device.