Gas valve of gas fire extinguishing device

Abstract

The utility model discloses a gas fire extinguishing device gas valve which comprises a valve cover B, the bottom of the valve cover B is in threaded connection with a valve cover A, a valve element is arranged in the valve cover A, a second sealing ring is connected to the upper portion of the valve element in a clamped mode, and a spring is arranged on the circumferential face of the bottom of the valve element. A valve cover B, a first sealing ring, a second sealing ring, a valve element, a spring, a valve cover A, a third sealing ring, a fourth sealing ring, a valve body and a one-way valve are arranged, the valve body is connected with a gas pipeline, the one-way valve is connected with an external heptafluoropropane gas fire extinguishing device, when a fire occurs, the gas fire extinguishing device can be automatically opened, gas enters the one-way valve, and the valve element rotates; and meanwhile, the gas fire extinguishing device can be automatically started to extinguish fire, gas blocking and fire extinguishing are achieved, manual operation is not needed, and the intelligent, rapid and safe functions are truly achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas valves, in particular to a gas valve for a gas fire extinguishing device. Background Art

[0002] Gas valves are safety devices used to cut off, connect, and regulate the flow of gas in gas pipelines. They are suitable for use on pipelines carrying a variety of fuel media, including city gas, liquefied petroleum gas, natural gas, and oxygen. They offer excellent control characteristics and sealing performance. They are commonly installed in existing household gas pipelines.

[0003] However, the existing household smoke valve only has a single blocking function. When the stove catches fire, a handheld fire extinguisher is required to put out the fire, which takes a long time to deal with the fire. For ordinary people in the fire, the operation is not friendly. Utility Model Content

[0004] The purpose of the utility model is to provide a gas valve for a gas fire extinguishing device, wherein the valve body is connected to the gas pipeline, and the one-way valve is connected to an external heptafluoropropane gas fire extinguisher. When a fire occurs, the fire extinguisher is opened, and the heptafluoropropane gas enters the one-way valve and causes the valve core to rotate, thereby closing the valve body and blocking the gas supply. At the same time, the fire extinguisher aimed at the stove can directly extinguish the fire on the stove, thereby achieving both gas blocking and fire extinguishing. The utility model has more powerful functions, is more convenient and quick to deal with fires, and is more user-friendly for ordinary people.

[0005] To achieve the above-mentioned purpose, a gas valve for a gas fire extinguishing device is provided, comprising: a valve cover B, the bottom of the valve cover B is threadedly connected to the valve cover A, a valve core is arranged inside the valve cover A, a No. 2 sealing ring is clamped on the top of the valve core, a spring is arranged on the bottom circumferential surface of the valve core, a No. 4 sealing ring is arranged on the bottom of the valve core, a No. 1 sealing ring is clamped on the top of the valve cover A, the bottom of the valve cover A is threadedly connected to the valve body, a No. 3 sealing ring is clamped between the valve cover A and the valve body, and a one-way valve is threadedly connected to the left side of the valve cover B.

[0006] According to the gas valve of the gas fire extinguishing device, the valve body is fixedly connected to the external gas main pipeline. When the valve body is closed, the gas pipeline can be blocked.

[0007] According to the gas valve of the gas fire extinguishing device, the valve core, spring, No. 2 sealing ring and No. 4 sealing ring are all located inside the valve cover A.

[0008] According to the gas valve of the gas fire extinguishing device, the surfaces of the valve cover B, the valve cover A and the valve body are all provided with electroplated chrome. The electroplated chrome can prevent the surface from rusting and make the valve more durable.

[0009] According to the gas valve of the gas fire extinguishing device, the No. 1 sealing ring, the No. 2 sealing ring, the No. 3 sealing ring and the No. 4 sealing ring are all made of fluororubber and are used to seal various joints.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging the valve cover B, the No. 1 sealing ring, the No. 2 sealing ring, the valve core, the spring, the valve cover A, the No. 3 sealing ring, the No. 4 sealing ring, the valve body and the one-way valve, the valve body is connected to the gas pipeline, and the one-way valve is connected to the external heptafluoropropane gas fire extinguisher. When a fire occurs, the fire extinguisher is opened, the heptafluoropropane gas enters the one-way valve, and the valve core rotates, thereby closing the valve body and blocking the gas supply. At the same time, the fire extinguisher aimed at the stove can directly extinguish the fire on the stove, thereby achieving both gas blocking and fire extinguishing. The function is more powerful, and it is more convenient and quick to deal with fire, and it is more user-friendly for ordinary people to operate.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0013] Figure 1 This is a cross-sectional view of the gas valve of the gas fire extinguishing device of the present invention.

[0014] In the figure: 1. Valve cover B; 2. Sealing ring No. 1; 3. Sealing ring No. 2; 4. Valve core; 5. Spring; 6. Valve cover A; 7. Sealing ring No. 3; 8. Sealing ring No. 4; 9. Valve body; 10. One-way valve. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0016] See also Figure 1The utility model provides a technical solution: a gas valve for a gas fire extinguishing device, comprising: a valve cover B1, the bottom of the valve cover B1 is threadedly connected to the valve cover A6, a valve core 4 is arranged inside the valve cover A6, a No. 2 sealing ring 3 is clamped on the top of the valve core 4, a spring 5 is arranged on the bottom circumferential surface of the valve core 4, a No. 4 sealing ring 8 is arranged on the bottom of the valve core 4, a No. 1 sealing ring 2 is clamped on the top of the valve cover A6, the valve core 4, the spring 5, the No. 2 sealing ring 3 and the No. 4 sealing ring 8 are all located inside the valve cover A6, the bottom of the valve cover A6 is threadedly connected to the valve body 9, and the valve body 9 is connected to the outer The gas main pipeline is fixedly connected, and a No. 3 sealing ring 7 is clamped between the valve cover A6 and the valve body 9. A one-way valve 10 is threadedly connected to the left side of the valve cover B1. The one-way valve 10 is connected to the external heptafluoropropane gas fire extinguisher through a copper tube. The external heptafluoropropane gas fire extinguisher is provided with a three-way valve (this is the existing technology and will not be repeated here). When the three-way valve is opened, the heptafluoropropane gas in the heptafluoropropane gas fire extinguisher enters the one-way valve 10 on one side to close the gas pipeline, and enters the fire extinguisher nozzle on the other side. The fire extinguisher nozzle is set facing the stove, which can extinguish the fire on the stove.

[0017] The No. 1 sealing ring 2, the No. 2 sealing ring 3, the No. 3 sealing ring 7 and the No. 4 sealing ring 8 are all made of fluororubber and are used for sealing various joints.

[0018] The surfaces of the valve cover B1, valve cover A6 and valve body 9 are all provided with electroplated chrome, which can prevent the surface from rusting and make the valve more durable.

[0019] Working principle: Connect the valve body 9 to the gas pipeline, and the one-way valve 10 to the three-way valve provided on the external heptafluoropropane gas fire extinguisher. When a fire occurs, open the three-way valve on the heptafluoropropane gas fire extinguisher, and one side of the heptafluoropropane gas in the heptafluoropropane gas fire extinguisher enters the one-way valve 10, causing the valve core 4 to rotate, thereby closing the valve body 9 and blocking the gas supply, and one side enters the fire extinguisher nozzle. The fire extinguisher nozzle is aimed at the stove, and the fire can be extinguished directly, which can achieve both gas blocking and fire extinguishing. After the fire is extinguished, close the three-way valve on the fire extinguisher and return the valve core 4 to its original position.

[0020] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Gas valve of gas fire extinguishing system, including: The valve cover B (1) is characterized in that the bottom of the valve cover B (1) is threadedly connected to the valve cover A (6), the interior of the valve cover A (6) is provided with a valve core (4), the upper part of the valve core (4) is clamped with a No. 2 sealing ring (3), the bottom circumferential surface of the valve core (4) is provided with a spring (5), the bottom of the valve core (4) is provided with a No. 4 sealing ring (8), the top of the valve cover A (6) is clamped with a No. 1 sealing ring (2), the bottom of the valve cover A (6) is threadedly connected to the valve body (9), the No. 3 sealing ring (7) is clamped between the valve cover A (6) and the valve body (9), and the left side of the valve cover B (1) is threadedly connected to a one-way valve (10).

2. The gas valve for a gas fire extinguishing device according to claim 1, characterized in that: The valve core (4), spring (5), No. 2 sealing ring (3) and No. 4 sealing ring (8) are all located inside the valve cover A (6).

3. The gas valve for a gas fire extinguishing device according to claim 1, characterized in that: The first sealing ring (2), the second sealing ring (3), the third sealing ring (7) and the fourth sealing ring (8) are all made of fluororubber.

4. The gas valve for a gas fire extinguishing device according to claim 1, characterized in that: The surfaces of the valve cover B (1), the valve cover A (6) and the valve body (9) are all provided with electroplated chrome.

5. The gas valve for a gas fire extinguishing device according to claim 1, characterized in that: The valve body (9) is fixedly connected to an external gas main pipeline.

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