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Railway vehicle braking safety valve

A technology for railway vehicles and safety valves, applied to the layout of pipelines, etc., can solve the problems of vehicle operation safety hazards, short maintenance cycles, and easy leakage, and achieve the effects of extending the maintenance period, improving reliability, and good sealing

Active Publication Date: 2010-06-02
CRRC MEISHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The empty car safety valve used on the existing railway vehicles in our country is a jumping safety valve designed in the 1950s. It is directly sealed by metal grinding parts. The main problems are short maintenance period, easy leakage and other inertia quality problems. operation poses safety hazards

Method used

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  • Railway vehicle braking safety valve
  • Railway vehicle braking safety valve

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing, the present invention will be further described:

[0015] preferred embodiment

[0016] Such as figure 1 A brake safety valve for railway vehicles shown includes a valve body 1, a valve cover 2, a pipe seat 3, a constant pressure spring 4, a spring seat 5, an adjusting screw 6, a constant pressure valve 7, and a dust filter 8, wherein the valve cover 2 is connected to the top of the valve body 1, the inside of the valve cover 2 and the valve body 1 is hollow, the valve cover 2 and the valve body 1 are connected together by the thread of the adjusting screw 6, and the pipe seat 3 is connected to the lower end of the valve body 1, The hollow part at the upper end of the pipe seat 3 communicates with the lower end of the hollow part of the valve body 1, and a dust filter 8 is arranged at the connecting part, and a constant pressure valve 7 is arranged above the dust filter 8, and the constant pressure valve 7 is placed flat ...

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PUM

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Abstract

The invention relates to a vehicle brake valve, in particular to a railway vehicle brake safety valve. The invention aims at providing the railway vehicle brake safety valve that has good opening andclosing properties, can keep good leak tightness, has the effects of automatic dust removal, theft prevention and loosing prevention, improves the reliability of the safety valve and prolongs the overhaul period. The aim of the invention is realized by the following technical proposal: automatic alignment structure is adopted between a spring seat and a constant pressure valve; the lower surface of the spring seat is a plane, while the upper surface of the constant pressure valve is spherical; the contact of the spring seat and the constant pressure valve is point contact, thereby ensuring sufficient freedom of the constant pressure valve at a horizontal direction, causing contact surface between the constant pressure valve and a valve port to be applied with balanced force and causing thevehicle brake valve to have good opening and closing properties and keep good leak tightness. The vehicle brake valve of the invention is mainly applied to railway vehicles.

Description

technical field [0001] The invention relates to a vehicle brake valve, in particular to a railway vehicle brake safety valve. Background technique [0002] The empty car safety valve used on the existing railway vehicles in our country is a jumping safety valve designed in the 1950s, which is directly sealed by metal grinding parts. The main problems are short maintenance period, easy leakage and other inertial quality problems. operation poses a safety hazard. Contents of the invention [0003] The purpose of the present invention is to provide a railway vehicle brake safety valve, which has good opening and closing performance and good sealing performance; has the effects of automatic dust removal, anti-theft and anti-loosening, and improves the reliability of the safety valve. Extended inspection period. [0004] The purpose of the present invention is achieved through the following technical solutions: a railway vehicle brake safety valve, including valve body, valve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T17/04
Inventor 陈建德安鸿欧东方
Owner CRRC MEISHAN
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