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Earthquake safety shutoff value

A safety cut-off valve and valve body technology, applied in safety valves, balance valves, valve devices, etc., can solve problems such as endangering life safety, burning fires, etc., and achieve the effect of ensuring life safety and ensuring safety

Active Publication Date: 2010-01-06
DAFENG GAS EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, if the gas transmission and distribution pipeline leaks during an earthquake, the consequences will be unimaginable, not only causing a raging fire, but also endangering people's lives.

Method used

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Examples

Experimental program
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Embodiment Construction

[0011] In the figure: the valve body 1 is connected to the valve port 12, the steel ball 2 is set on the positioning groove of the left plate 4, the contactor of the alarm device 18 is in contact with the steel ball 2 points, and the left plate 4 and the right plate are connected by the upper pin 5 7 for connection, the lower pin 6 is set into the lower end of the left plate 4, the locking plate 8 and the swing arm frame 10 are connected together by the connecting screw 9, the valve port pad 11 is fixed on the connecting screw 9 by a circlip, and the bushing 13 Embedded in the valve body 1, the hole of the bushing 13 is connected with the top of the reset shaft 14, the swing arm frame 10 is connected with the hexagonal part of the reset shaft 14, one end of the torsion spring 15 is fixed on the valve body 1, and the other end is stuck in the rotating arm frame 10. On the arm frame 10, the sealing screw plug 16 is screwed into the valve body 1, the reset wrench 17 is connected w...

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Abstract

The invention relates to an earthquake safety shutoff value. A valve body is connected with a valve port; a steel ball is arranged on a positioning grove of a left plate; a contactor on an alarm device is in point contact with the steel ball; an upper pin is used to connect the left plate with a right plate; a lower pin is inserted into the lower end of the left plate; a locking plate is connected with an spiral arm support through a connecting screw rod; a valve port pad is fixed on the connecting screw rod by a snap spring; a bush is embedded into the valve body, and a bush hole is connected with the top of a resetting shaft; the spiral arm support is connected with the hexagonal position of the resetting shaft; one end of a torsional spring is fixed on the valve body, while the other end is clamped on the spiral arm support; a sealing plug screw is screwed into the valve body; a reset wrench is connected with the resetting shaft; and an outer casing is arranged on a vibration dropping device. When more than 5.5 magnitude of earthquake occurs, a shutoff device and the vibration dropping device can quickly close the valve, shut off a fuel gas source in a pipeline, and ensure the safety of the fuel gas pipeline; and when the earthquake occurs, the alarm device can produce alarm sound within about 1 second to remind operating personnel of shutting down or working personnel of immediately escaping or being evacuated to safe places further to ensure the life security of people.

Description

technical field [0001] The invention relates to a gas safety valve when an earthquake occurs, in particular to an earthquake safety cut-off valve. Background technique [0002] A magnitude 8 earthquake occurred in Wenchuan, Sichuan, my country on May 12, which caused huge losses to the people in the disaster-stricken areas of Sichuan, and attracted the attention of governments and people all over the world. To serious damage, the gas pipeline is damaged, resulting in gas leakage. Our country is now in a period of frequent earthquake activity. In recent years, there have been several large, medium and small earthquakes, which have attracted great attention from party and state leaders and governments at all levels. Especially in the earthquake, if the gas transmission and distribution pipeline leaks, the consequences will be disastrous, which will not only cause a raging fire, but also endanger people's lives. After the Wenchuan Earthquake in Sichuan, we should have learned ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/36F16K37/00
Inventor 徐新国智恒勤
Owner DAFENG GAS EQUIP
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