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Automobile brake anti-failure three-control relay valve

An automobile braking and anti-failure technology, applied in the direction of brakes, brake components, control valves and air release valves, etc., can solve the problems of non-overlapping use, vehicle damage, weak retarding braking torque, etc., and achieve easy installation. , Low loading cost, and the effect of increasing braking torque

Inactive Publication Date: 2013-01-09
CHANGTONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fundamental defects of traditional braking technology are: 1. Spring energy storage braking and retarding braking torque are weak, and only control the rear wheel; The dynamic and main brakes cannot be used together
Therefore, when the main brake fails and fails, the emergency efficiency of the traditional braking technology is poor, and the braking force cannot be given in a timely and reasonable manner, and the speed control and parking within the artificial safety range are lost.
[0004]The consequences of brake failure and bad brakes are often major traffic accidents, which are likely to cause casualties, damage to vehicles and damage to public facilities. personal serious harm or loss

Method used

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  • Automobile brake anti-failure three-control relay valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: see figure 1 , The automobile brake failure prevention three-control relay valve includes an upper body 23 , a middle and upper body 18 , a middle and lower body 10 and a lower body 1 .

[0024] The upper body 23 is provided with two control air inlets, namely the control air inlet 38 and the control air inlet 39 . The inner cavity of the upper body 23 is sealed with two pistons, that is, a follower piston 20 is installed on the lower side of the upper piston 22. The upper piston 22 is a hollow structure (the piston rod is hollow), and the inner wall of the hollow cavity is provided with steps. Faced as a downward pressing surface, the center column of the follower piston 20 (the center column may be hollow but the bottom is sealed) is set under the step surface in the hollow cavity of the upper piston. The inner cavity of the upper body 23 is separated by two pistons to form a plurality of sealed and isolated air chambers. The upper side of the upper pi...

Embodiment 2

[0031] Embodiment 2, the accompanying drawings are not drawn, the content is basically the same as that of Embodiment 1, and the similarities will not be repeated. The difference is that only one upper piston is arranged in the upper body cavity, and there is no follower piston, so that the upper piston directly drives part. The center of the upper piston is provided with a plug, and the peripheral edge of the upper piston is provided with a limiting flange. The upper piston divides the upper body cavity into upper and lower air chambers, and only one control air inlet is arranged on the upper body, and the control air inlet communicates with the upper air chamber.

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Abstract

The invention discloses an automobile brake anti-failure three-control relay valve which comprises an upper body, a middle upper body, a middle lower body and a lower body, wherein the upper body and the lower body are respectively provided with an air inlet control port, and the middle upper body and the middle lower body are respectively provided with an air inlet and an air outlet. The anti-failure three-control relay valve disclosed by the invention is one constituent component of a brake system, is combined with system elements to form a brake system and can be used for timely and effectively compensating a brake moment under the conditions of blockage, component jamming, air pressure reduction and rapid leakage caused by system faults, and the purposes of remedying front wheels during front wheel failures, remedying rear wheels during rear wheel failures and remedying the whole vehicle during failures of the whole vehicle can be achieved. The automobile brake anti-failure three-control relay valve has the advantages of convenience in mounting, low loading cost, nimble operation and excellent performance, and the defects of brake failure, poor brake and the like of the traditional technologies are obviously improved; and the safe reliability of the anti-failure brake technology is improved, so that the automobile brake anti-failure three-control relay valve is quite beneficial to promotion and application.

Description

technical field [0001] The invention relates to a relay valve in an automobile braking system, in particular to a failure-preventing three-control relay valve for automobiles. Background technique [0002] Brake failure and failure can be divided into rear axle, front axle and the whole vehicle - because air brake technology is mainly used in medium and large vehicles, and medium and large vehicles are often prone to various reasons such as poor working conditions and defects in traditional braking technology. Cause brake failure, poor braking. For example, various factors such as: low-temperature system pipelines are blocked by water accumulation, system components are frozen and issued, high and low temperature system pipe fittings and components are damaged and leak air, etc., seriously affect the braking reliability. [0003] According to the basic safety requirements of the traditional air brake technology, the following two auxiliary brakes must be provided in additio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T15/18
Inventor 田青锋
Owner CHANGTONG TECH
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