Straight pull type pipeline gas self-closing valve

A gas self-closing valve, straight-pull technology, applied in the direction of valve details, valve devices, functional valve types, etc., can solve the problems of endangering the life and property safety of users and the failure of self-closing valves to work, so as to ensure the safety of life and property, reduce Effects of gas leakage and less environmental disturbance

Pending Publication Date: 2021-12-10
HEBEI ZEHONG ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, when limiting the pressure and flow of gas pipelines, self-closing valves are usually used. There are many types of self-closing valves on the market. Some self-closing valves need to use e

Method used

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  • Straight pull type pipeline gas self-closing valve
  • Straight pull type pipeline gas self-closing valve
  • Straight pull type pipeline gas self-closing valve

Examples

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[0030] The technical solutions in the embodiments of the present invention will be described in the following to the accompanying drawings in the embodiments of the present invention. Many specific details are set forth in the following description to facilitate appreciation of the invention, but the invention can also be implemented in other than other means described herein, and those skilled in the art can do without violating the connotation of the present invention. Similarly, the present invention is not limited by the specific embodiments disclosed below.

[0031] like figure 1 and figure 2 As shown, the self-closed valve includes a valve body 11 and a valve cover 12 that is fitted with the valve body 11, and both ends of the valve body 11 respectively provide an intake end and an air end, and the intake end and the extra gas end are threaded. Other pipes. The top of the valve body 11 is opened with an opening of the fitting of the valve cover 12, and the valve cover 12 is ...

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Abstract

The invention relates to a straight pull type pipeline fuel gas self-closing valve. The straight pull type pipeline fuel gas self-closing valve comprises a valve body and a valve cover, wherein a gas inlet end and a gas outlet end are arranged on the valve body, an opening matching with the valve cover is perpendicularly formed in the top of the valve body, a leather film is arranged between the opening position of the valve body and the valve cover in a pressing mode, and the straight pull type pipeline fuel gas self-closing valve further comprises a ventilation opening which is formed inside the valve body and located under the opening, a flow limiting valve, a first iron sheet, a second iron sheet and a magnet, wherein the flow limiting valve is located between the air inlet end and the ventilation opening, the first iron sheet is fixed to the inner wall of the valve body, a vent hole is formed in the first iron sheet, a stand column used for blocking the ventilation opening is arranged on the first iron sheet in a sliding and penetrating mode, a lifting rod is arranged on the valve cover in a sliding mode, a leather film is located between the second iron sheet and the valve cover, and the magnet attracts the first iron sheet to enable the stand column to block the ventilation opening. According to the straight pull type pipeline gas self-closing valve, overpressure self-closing, underpressure self-closing and overcurrent self-closing can be completed, the self-closing valve does not need electric control, the structure is simple, the sensitivity is high, and the safety when a user uses fuel gas is greatly improved.

Description

technical field [0001] The invention relates to the field of gas pipeline self-closing valves, in particular to a straight-pull pipeline gas self-closing valve. Background technique [0002] With the advancement of science and technology, and in order to reduce carbon emissions, natural gas has gradually entered thousands of households. In the process of natural gas transmission, high-pressure transmission is mainly used. After natural gas is transported to end users, the pressure of natural gas pipelines is too high or Too small will affect the safety of natural gas use. In order to make residents use natural gas better and reduce the risk of using natural gas, it is necessary to limit the pipeline pressure of natural gas within a certain range, and at the same time, it is necessary to limit the flow in the natural gas pipeline . [0003] At present, when limiting the pressure and flow of gas pipelines, self-closing valves are usually used. There are many types of self-clo...

Claims

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Application Information

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IPC IPC(8): F16K21/04F16K31/126
CPCF16K21/04F16K31/126
Inventor 柳新宏左贵云宿赛龙王硕
Owner HEBEI ZEHONG ELECTRONICS TECH
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