Trailer

Abstract

The trailer includes mainly one hauling machine, one auxiliary frame, one suspension device, one braking device and one tail lamp system. It features the suspension device with one nearly square torsion piece combination comprising elastic steel pieces; the braking device with one braking shoe assembly comprising one double layered rocker, two locating pins, one braking shoe plate and one braking friction sheet; the tail lamp system with at least one transition connector connected between one plug and one socket. The trailer has the advantages of capacity of being connected with different kinds of tractor, smooth running, etc.

Description

technical field [0001] The invention relates to a trailer. Background technique [0002] Trailers are widely used in vehicle transportation as an effective way to increase vehicle transportation. A general trailer is mainly composed of a tractor head, a sub-frame connected to the traction head, a suspension device, a brake device, a taillight system, and a trailer cabin, etc. composition. The existing trailers have the following problems: 1. Traditional trailers generally use leaf spring suspension as the trailer suspension device to connect the car body and wheels, which have a large volume, high center of gravity and poor stability; This problem can be better solved, but the general torsion shaft is a circular torsion bar, the torsion angle of the circular torsion bar is small, and the overall torsion bar has small elasticity and energy storage. 2. The inertia braking device of the existing trailer includes two brake shoe assemblies, one end of the two brake shoe assembl...

AI Technical Summary

Problems solved by technology

The existing trailers have the following problems: 1. Traditional trailers generally use leaf spring suspension as the trailer suspension device to connect the car body and wheels, which have a large volume, high center of gravity of the car body, and poor stability; This problem can be better solved, but the general torsion shaft is a circular torsion bar, the torsion angle of the circular torsion bar is small, and the overall torsion bar has small elasticity and energy storage

But this kind of braking device has a shortcoming, exactly when the car is reversing, the tractor is backward, and the traction main shaft will also be subjected to a backward thrust, and it will also start the opening mechanism to stretch the two brake shoes, so that the trailer is braked. Therefore, most trailers using inertial braking devices cannot reverse normally

3. When the trailer is connected to the tractor, it is necessary to connect the tail light socket at the tail of the tractor with the plug of the trailer tail light system to ensure the normal use of the trailer tail light. The plug and socket of the tractor and the trailer are compatible with each other, but when the tractor and the trailer are of different models, the taillight socket and the plug may not match and cannot be directly connected to work normally, such as the commonly used Dongfeng, Jiefang, For the three models of Steyr, the taillight sockets and plugs of each model are different, and they cannot be plugged and used at will; at the same time, the output voltage of the power system of each model is not the same, which greatly limits the trailers of various models. Interchangeable use with tractors

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