Upper cover of air-brake brake valve
An air brake and cover technology, which is applied in the direction of brakes, brake components, control valves and air release valves, etc., can solve the problems of brake failure, easy freezing and blockage, frequent accidents, etc., and achieve the effect of fast braking speed
Active Publication Date: 2012-08-01
王福祥
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Problems solved by technology
[0002] At present, the brake chamber (8) of the upper cover of the (main vehicle) relay valve, (main vehicle) trailer valve and (trailer) synchronous valve air brake valve is prone to water accumulation, especially in winter, it is easy to freeze and block , resulting in brake failure, the accidents caused by this are not uncommon, bringing safety hazards to people's lives and property
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[0014] Such as figure 1 As shown, the upper cover of the air brake valve includes an upper cover housing 2 and an upper cover brake piston 1. The upper cover brake piston 1 is slidingly sealed with the inner wall of the piston cavity of the upper cover housing 2, and the upper cover brakes The top surface of the piston 1 and the top surface of the piston cavity of the upper cover housing 2 form a brake chamber 8. The upper cover housing 2 is provided with a control air hole 4, and the upper cover brake piston 1 is provided with a guide post 3, The top cover of the upper cover shell 2 is provided with a guide groove adapted to the guide column 3, and the center of the upper cover brake piston 1 is provided with a vertical three-step step hole with upper and lower sides, and the control air hole 4 and the third step The largest hole of the stepped hole is connected. The lower end of the largest hole of the third stepped hole is lower than the top surface of the upper cover brake p...
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The invention discloses an upper cover of an air-brake brake valve, which comprises an upper cover shell and an upper cover brake piston. The upper cover brake piston is in sliding sealed fit with the inner wall of a piston cavity of the upper cover shell. A brake chamber is formed by the top face of the upper cover brake piston and that of the piston cavity. Control air holes are reserved on the upper cover shell. A guide column is disposed on the upper portion of the upper cover brake piston. A guide channel which is matched with the guide column is disposed on a top cover of the upper cover shell. Big-end-up vertical three-stepped holes are reserved in the center of the upper cover brake piston. The control holes are communicated with the biggest stepped hole. The lower end of the biggest stepped hole is lower than the top face of the upper cover brake piston. A small piston is disposed in the biggest stepped hole and a spring supporting the small piston is disposed in the middle stepped hole. The top face of the upper cover brake piston is a conical face with higher outer side and lower inner side. A drainage hole leads to the biggest stepped hole is reserved on the guide column. The brake chamber has no waterlogging, so that freezing jam in winter can be avoided.
Description
Technical field [0001] The invention relates to an automobile brake valve, in particular to an upper cover body of an air brake brake valve suitable for a (main vehicle) relay valve, a (main vehicle) trailer valve and a (trailer) synchronization valve. Background technique [0002] At present, the (main vehicle) relay valve, (main vehicle) trailer valve and (trailer) synchronization valve air brake valve upper cover of the brake chamber (8) is prone to water accumulation, especially in winter easy to freeze and block , Causing brake failure, accidents caused by this are not uncommon, bringing safety hazards to people's lives and property. Therefore, designing an air brake brake valve upper cover that can automatically drain, have no water in the brake chamber, and prevent freezing in winter to avoid brake failure is a technical problem that needs to be solved at present. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a...
Claims
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Inventor 王福祥
Owner 王福祥