Air-pressure brake antilock device of trailer

Abstract

The invention discloses an air-pressure brake antilock device of trailer, comprising an adjustor housing; the adjustor housing is provided with a big connector base assembly connected with a relay valve, a small connector base assembly connected with a brake chamber and a coil assembly; a cavity C is formed between the big connector base assembly and the adjustor housing; a cavity B connected withthe cavity C is formed between the small connector base assembly and the adjustor housing; the adjustor housing is provided with a gas vent D, a gas vent F and an air exhaust E; the gas vent D is connected with the big connector base assembly and the coil assembly, the gas vent F is connected with the coil assembly and the cavity B; the air exhaust E is connected with the coil assembly and atmosphere; the on-off control output pressure of the gas vent D, gas vent F and air exhaust E is adjusted by the coil assembly. The invention reliably realizes the antilock function of the trailer, and has simple structure, and fast response, light overall weight; and the connector base assembly can cause the brake pipeline to be conveniently and fast installed, and improves the assembling speed and the disassembly is convenient.

Description

technical field [0001] The invention relates to an anti-lock braking device for an automobile trailer during pneumatic braking. Background technique [0002] The anti-lock brake device of the car can prevent the tires from locking up when the car brakes. When the vehicle is not equipped with an anti-lock braking system, if the rear wheels are locked during the braking process, the vehicle will skid or flick; if the front wheels are locked during the braking process, the vehicle will lose Steering ability, unable to avoid obstacles in time, these will become unsafe factors when driving. At present, especially for trailer anti-lock brake devices, many of them are combined with the brake anti-lock brake devices of passenger cars or tractors for trailers, and brake air pipes are commonly used with ferrules, bushings, nuts, tubes, etc. Four-piece sets such as joints are used to realize the connection, which not only increases the weight and complexity of the entire brake anti-l...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a trailer air pressure brake anti-lock device, which can effectively solve the problem of combining the brake anti-lock brake devices of passenger cars or tractors together for trailers, and the brake air pipes are commonly used with ferrules, linings, etc. Core, nut, pipe joint and other four-piece sets to realize the connection, not only increases the weight and complexity of the whole set of brake anti-lock braking device, but also increases the problem of cost

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