Emergency valve

An emergency valve and emergency room technology, applied in the direction of control valves, air release valves, brake components, brakes, etc., can solve the problems of high-pressure gas taking a long time, high-pressure gas discharge slowly, etc., and achieve convenient disassembly, replacement, cleaning and maintenance , Ease of maintenance and shortening the discharge time

Pending Publication Date: 2021-10-22
XINXIANG AVIATION IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the emergency chamber of the emergency valve in the above-mentioned prior art communicates with the lower chamber only through the restricted shrinkage hole on the central rod, which causes the high-pressure gas in the emergency chamber to be discharged slowly, so that it is easy to appear after the braking is completed. The gas still takes a long time to vent, causing the emergency valve to take a long time to relieve to the initial state

Method used

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  • Emergency valve

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specific Embodiment 1

[0029] Specific embodiment 1 of the emergency valve of the present invention: In this embodiment, the emergency valve is connected to the brake pipe of the train braking system to accelerate the exhaust of the brake pipe as an example, and the structure and working principle of the emergency valve in the present invention are carried out introduce. Such as figure 1 As shown, the emergency valve includes a valve casing 1, a valve seat 2, and a valve assembly 3. The valve casing 1 and the valve seat 2 are buckled and sealed together, and at the same time, the valve casing 1 seals and presses the valve assembly 3 on the valve seat 2. superior. An exhaust channel is provided on the valve housing 1, one end of the exhaust channel is used to communicate with the brake pipe, and the other end is used to communicate with the atmosphere.

[0030]Specifically, the exhaust passage includes two parallel hole sections, and a main valve port 9 vertically connected to the two parallel hole...

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Abstract

The invention relates to an emergency valve which comprises a valve shell, an exhaust channel is formed in the valve shell, a main valve port is provided with a main valve element for controlling the opening section of the main valve port, the main valve element divides the exhaust channel into a high-pressure cavity communicated with a brake pipe, and the high-pressure cavity is communicated with an emergency chamber through a communication channel; the emergency chamber is provided with an exhaust valve capable of achieving communication and disconnection between an inner cavity of the emergency chamber and the atmosphere, a center rod of a piston assembly of the emergency valve is communicated with the exhaust valve when pushing the main valve element to be opened, so that the exhaust channel of the exhaust valve is communicated for exhausting, on the basis that high-pressure gas in the emergency chamber is exhausted into the high-pressure cavity through the communication channel, another discharge channel is provided for the high-pressure gas in the emergency chamber, so that the high-pressure gas in the emergency chamber can be discharged at a higher speed, and the emergency valve can be relieved to the initial state within a short time.

Description

technical field [0001] The invention relates to an emergency valve. Background technique [0002] When the train is running normally, the brake pipe is filled with high-pressure gas and kept at high pressure. When the train needs to brake, the operator will turn the brake valve in the driver's cab or compartment to the braking position, so that the brake pipe will exhaust air to the outside, and the system will The pressure in the moving tube drops and triggers the brake cylinder to work to brake the train wheels. The braking of the train is divided into conventional braking and emergency braking. During emergency braking, the brake pipe should be able to quickly exhaust the air so that the braking system can respond quickly. In order to realize the rapid exhaust of the brake pipe during emergency braking, an emergency valve is connected to the brake pipe in the prior art, and the emergency valve is used to speed up the exhaust of the brake pipe and improve the sensitivity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T15/52B60T15/42B60T15/02
CPCB60T15/52B60T15/42B60T15/021
Inventor 侯松峰贾方迪王献岭刘建辉王玉涛
Owner XINXIANG AVIATION IND GROUP
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