JPS583981Y2 - Gas passage cutoff device in case of abnormality - Google Patents

Description

[Detailed explanation of the invention] This invention is designed to prevent disasters caused by gas leakage in the event of an emergency by blocking the passage of the gas source of an emergency nipropane gas cylinder in the event of an emergency such as an earthquake, fire, or large kite. This invention relates to a gas passage shutoff device that can be pressed.

The purpose is to use the hydraulic pressure of tap water to make it possible to install an operating valve for shutting off gas passages near the faucet in the kitchen, where it can be accessed immediately in an emergency. The object is to be able to quickly shut off a gas passage by just one-touch operation of a flow valve.

Yet another purpose is to eliminate the inconvenience caused by freezing in winter by using antifreeze to act on the diaphragm valve provided in the gas passage.

In other words, the feature is that a conduit separated by a diaphragm valve body is connected to the water pipe near the faucet, and a container containing antifreeze is installed above the rear side of the valve body, so that water pressure is applied to the diaphragm. The antifreeze liquid is formed so that it flows from the container through the valve body to the rear conduit, and the rear conduit is provided with a check valve, and the rear part of the conduit is connected to the diaphragm valve body provided at the gas outlet of the propane gas cylinder by a flexible tube. A manually operated valve is provided in the rear conduit behind the check valve, and this valve and the antifreeze liquid storage container are communicated through an antifreeze backflow pipe.Normally, the diaphragm valve that separates the conduit is operated by the pressure of tap water, and the antifreeze liquid is released. flows into the flexible tube, and the liquid pressure of the antifreeze liquid operates a diaphragm valve installed in the gas passage to open the gas passage. In the event of an abnormality, the manually operated valve can be pressed to cause the antifreeze liquid to reverse and close the flow pipe. The diaphragm valve of the gas passage returns to its original state and shuts off the gas passage.

Further, the structure and operation of this invention will be explained in detail with reference to embodiments of the drawings.

Reference numeral 1 denotes a water pipe that communicates with a faucet 2, and a conduit 3 is orthogonally communicated with the tip of the water pipe.

A three-way cock 4 is provided at the tip of this conduit 3.

Reference numeral 5 denotes a diaphragm valve body connected to the base end of the conduit 3, and a front cover 8 and a rear cover 9 are screwed onto each other with diaphragms L7'r interposed at the front and rear thereof.

The base end of the conduit 30 opens at the center of the front cover 8, and a drain pipe 10 communicates with the lower part of the front cover 8.

Reference numeral 11 denotes a sliding body housed in the valve housing 5a between the front and rear diaphragms 6.7.

Inside this sliding body 11, a shaft 12 of a button valve body 5 is installed vertically so as to be freely rotatable, and a cam 13 for pressing the inner wall of the sliding body 11 is fixed at the center of this shaft 12, and a lever 14 is installed at the lower end.
will be established.

Reference numeral 15 denotes a container for storing antifreeze, which is installed upright in the valve 5 and communicates between the rear cover 9 and the diaphragm 7.

This rear lid 9 is provided with an air vent 16.

Reference numeral 17 denotes a conduit that communicates with the rear cover 9 and the valve housing 18, and is equipped with a check valve 19 in the center, and a spring 20 that presses the diaphragm 7 is inserted in the tip opening, and a diaphragm T is inserted.
It has an opening shielding protrusion 21 in the center thereof.

22 is a pressure gauge provided above the valve housing, 23 is a discharge part that communicates with the conduit 17 provided behind it, and 24 is a cylinder provided in front of the valve housing 18, to which the pipe body 25 is screwed. ing.

A valve rod 27 having a backing 26 at its tip is inserted into the tube 25, and the valve rod 27 is constantly pulled by a spring 28 so that the opening of the tube 24 is sealed by the backing 26.

A through hole 29 is provided at the tip of the tube body 25 and communicates with the valve housing 18 , and the through hole 29 and the container 15 communicate with each other through a backflow pipe 30 .

31 is an air vent provided in the valve housing 18.

Reference numeral 32 denotes a diaphragm valve body provided at the outlet 40 of the propane gas cylinder 33, to which a front lid 34 is screwed through a diaphragm 35, and behind this diaphragm 35 is an opening of a gas pipe 36 communicating with the gas appliance. An opening/closing member 37 for the discharge port 40 that communicates with the section is provided via a spring 38.

Discharge part 23 of valve housing 18 and front cover 3 of diaphragm valve body 32
The four central openings are connected by a flexible tube 39.

41 is an air vent provided in the front lid 34. 43 is a valve.

Water may be used instead of antifreeze except during winter.

Therefore, if the cock 42 of the faucet 2 is closed and the three-way cock 4 is opened, tap water flows into the conduit 3 and passes through the diaphragm valve body 5.
Apply water pressure to the front diaphragm 6 of.

When the three-way cock 4 is closed in this state, the pressurized state of the diaphragm 6 continues to be maintained regardless of whether the water tap 42 is opened or closed.

When water pressure is applied to the diaphragm 6, the sliding body 11 is pressed and slid.

Then, the rear diaphragm 7 is also pressurized, the valve 43 is opened, and the antifreeze liquid A passes between the diaphragm 7 and the rear cover 9 and enters the conduit 1.
7, the flexible tube 39 is filled with antifreeze liquid A via the check valve 19, and the protrusion 21 of the diaphragm 7 closes the opening of the rear cover 9 to apply pressure, and the check valve 19 prevents the antifreeze liquid A from being added. The pressure state is maintained.

In this case, the valve stem 27 is in a tensioned state due to the elastic force of the spring 28, and the backing 26 is sealed by the end of the valve stem, so there is no possibility that the antifreeze liquid will flow toward the backflow pipe 30.

In this way, the hydraulic pressure of the antifreeze liquid A is applied to the diaphragm 35 of the diaphragm valve body 32 in the gas passage.
The opening/closing member 37 is operated against this to open the gas passage, that is, between the outlet 40 of the propane gas cylinder 33 and the gas pipe 36, and the gas can be used.

Next, in the event of an emergency such as an earthquake, fire, or large kite, go to the faucet 2 in the kitchen immediately and press the valve stem 27 near the faucet 2 with one touch, and the end of the valve stem 27 will separate from the backing 26. Since the opening is opened, pressurized antifreeze is injected into this opening and flows into the backflow pipe 30 from the opening.
0 into the container 15, the hydraulic pressure applied to the diaphragm 35 of the diaphragm valve body 32 in the gas passage disappears, and the opening/closing member 37 is opened by the restoring force of the spring 38.
is activated to immediately shut off the gas passage.

In addition, when water is cut off, pressure may be applied by operating the lever 14 and using a cam.

Since the present invention is constructed as described above, it produces the following sound effects.

Firstly, the diaphragm valve body 5.31 is installed to make it possible to utilize the hydraulic pressure of tap water, and the gas passage cutoff operation valve 27 is installed near the faucet in the kitchen, where it can be accessed immediately in case of an emergency. When something goes wrong, you can quickly and reliably shut off the gas passage just by going to the kitchen and operating the valve with one touch.

Second, the hydraulic pressure of the tap water is applied directly to the diaphragm valve body 32 of the gas passage, rather than applying the hydraulic pressure of the tap water directly to the diaphragm valve body 32 of the gas passage.
, 17 is operated to apply the hydraulic pressure of the antifreeze liquid A to the diaphragm valve element 32 by the action of the valve element 5, so even if the button is pressed during winter, there will be problems due to freezing. It is possible to prevent disaster costs due to gas leaks quickly and reliably without any fear.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, and Figure 1 is an overall perspective view;
Figure 2 is a cross-sectional view taken along line A-A in Figure 1, and Figure 3 is B in Figure 1.
4 is a sectional view taken along line C-C in FIG. 1. 5... Diaphragm, 15... Container, 18... Valve housing, 19... Check valve, 27... Valve stem, 3o... Pipe, iaphragm valve body, 39... Flexible tube. 32...da

Claims (1)

[Scope of utility model registration request] The water pipe near the faucet is connected to a pipe metal separated by a diaphragm valve, and a container containing antifreeze is provided above the rear side of the valve, so that when water pressure is applied to the diaphragm, antifreeze flows from the container through the valve. A check valve is provided in the rear conduit, and a flexible tube connects the rear part of the conduit to a diaphragm valve body for opening and closing the gas exhaust port provided at the gas outlet of the propane gas cylinder. A gas passage cutoff device that can be opened in the event of an abnormality, characterized in that a manually operated valve 2 is provided in a rear conduit on the rear side of the valve, and this valve is communicated with an antifreeze liquid storage container through an antifreeze liquid backflow pipe.