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Gas self-closing valve

A gas self-closing valve and valve body technology, applied in valve details, safety valve, balance valve, etc., can solve the problems of heavy weight and high production cost, and achieve the effect of overall weight reduction, less health hazard, and process environmental protection.

Pending Publication Date: 2022-01-14
浙江博民机电股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of heavy weight and high production cost while ensuring the integrity

Method used

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Embodiment Construction

[0026] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0027] Such as figure 1 with figure 2 As shown, the gas self-closing valve includes a valve body 1, a valve cover 2 and a diaphragm 3. The upper side of the valve body 1 is open and the valve cover 2 is connected to the upper side of the valve body 1. The outer edge of the diaphragm 3 is clamped on the valve cover. 2 and the valve body 1, a lower chamber 4 is formed between the diaphragm 3 and the inner wall of the valve body 1, and an upper chamber 5 is formed between the diaphragm 3 and the inner wall of the valve cover 2. The left end of the valve body 1 is provided with an air intake channel 1a, and the valve body 1 has an air passage 1c opened in the vertical direction. The right end of the valve body 1 is provided...

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PUM

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Abstract

The invention provides a gas self-closing valve, and belongs to the technical field of gas. The problems that the weight is large and the production cost is high while the integrity is guaranteed are solved. The valve comprises a valve body, a valve cover and a diaphragm, an opening is formed at the upper side of the valve body, the valve cover is connected to the upper side of the valve body, the outer edge of the diaphragm is clamped between the valve body and the valve cover, a valve rod is fixed to the center of the diaphragm, the upper end of the valve rod extends out of the valve cover and is connected with a top cap, the valve cover comprises a cover head and a body formed by stamping a metal plate, and the lower end of the body is fixed through a spin rivet after being arranged outside the upper side of the valve body in a sleeving manner. A mounting hole with two through ends is formed at the top of the body, a connecting part matched with the mounting hole is arranged at the lower end of the cover head, and the cover head and the body are riveted and fixed after being punched upwards from the lower direction of the connecting part. The valve has the advantages of good integrality, light weight, low production cost and the like.

Description

technical field [0001] The invention belongs to the technical field of gas, and relates to a gas self-closing valve. Background technique [0002] Gas is a widely used gas fuel. Since gas is flammable, explosive and poisonous, if the gas leaks, it will easily cause major safety accidents. Therefore, it is necessary to ensure that the gas entering the burner is maintained at a normal pressure so that it can Full and stable combustion. At present, a gas self-closing valve is installed in front of the burning appliance, so that the valve is automatically closed when the pressure is over or under pressure to prevent gas leakage. [0003] For example, a new gas pipeline self-closing valve disclosed in patent application No. 201921169822.7 includes a valve body and a bonnet detachably mounted on the valve body. A valve chamber is provided between the valve body and the bonnet. There is a diaphragm and the diaphragm separates the valve chamber into an upper chamber and a lower ch...

Claims

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Application Information

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IPC IPC(8): F16K17/00F16K27/02F16K27/08
CPCF16K17/00F16K27/02F16K27/08
Inventor 郑志勇李德松郑桂凤王盛翁维平汪星宇刘胜伟吴如杰
Owner 浙江博民机电股份有限公司
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