Trailer

Abstract

The invention relates to a trailer which is characterized in that a double-faced fluted disc clamping device is respectively arranged at the front end and the rear end of left and right draw arms of the trailer, a traction machine head and a side wall of a draft sill; a trailer chassis front steering support includes an outer tube, an inner tube, a crank sleeved with a leading screw assembly, and a bracket assembly doweled with a front idler pulley through a bolt; the top end of the outer tube is connected with a crank assembly which is connected with the leading screw of the leading screw assembly through a ratchet wheel assembly; a brake reversing ratchet mechanism is arranged in the position symmetrical to a strutting mechanism on a brake base plate in a braking device; and a taillight system is equipped with a tractor taillight socket and a matching box connected with the taillight system of the trailer. The trailer has the advantages of facilitating the height adjustment and the horizontal maintenance of the traction connecting device, facilitating the improvement on the stability of the trailer in traveling, meeting the traction requirements of various tractors; collocating a trailer impact braking device without air source or liquid source; realizing the automatic reversion of the trailer; and equipping the taillight system with the matching box for matching the trailer with tractors of various types.

Description

technical field [0001] The invention belongs to motor vehicles, in particular to a trailer towed by the motor vehicle. Background technique [0002] Trailer is widely used in vehicle transportation as an effective way to increase vehicle transportation. A general trailer is mainly composed of a traction connection device, a guide wheel device, a frame connected to the traction beam, a suspension device, a braking device, an automatic reversing device, and a taillight system. Present trailer has many deficiencies in structure. For example: (1) When the trailer is connected to the tractor, the trailer needs to be adjusted according to the traction height of the tractor to meet the trailer traction requirements. When adjusting the towing height of the trailer, it is necessary to ensure that the inertial device is parallel to the traction shaft, otherwise the inertial device will be damaged, causing the brake to fail or the brake cannot be released, which will affect the safe ...

AI Technical Summary

Problems solved by technology

When the tractor starts to brake, the speed of the main vehicle will decrease. Due to the inertia of the trailer behind, the traction ring and the traction hook of the main vehicle will generate a large horizontal force, which will press the traction ring into the traction Inside the head, through a set of linkage mechanism, the brake lever is pulled to open the brake shoe and brake the trailer. No matter whether the wheel of this brake is turning forward or backward, as long as the brake rope pulls the stretching mechanism , can generate braking, therefore, when the trailer using this brake is pushed by the main vehicle to reverse, it will also generate braking and cannot reverse

At present, the common practice in China is to open a hole behind the traction ring of the trailer. When reversing, insert a pin in the hole to push the traction ring to death, so that the impact braking system cannot function, and then reverse the vehicle. pin pulled out

Although this solves the problem of reversing, once the pin is forgotten to be pulled out after reversing, the trailer will not hit the brake when driving with the main vehicle, and it will be dangerous in an emergency, and the operation is cumbersome and time-consuming. There is a safety hazard on the ramp. Hidden dangers; (5) The taillight system on the trailer, when the trailer is connected to the tractor under normal circumstances, it is necessary to connect the taillight socket at the tail of the tractor with the plug of the trailer taillight system to ensure the normal use of the trailer taillight

The tail light system on the trailer generally includes: a plug, a cable connected to the plug and two tail lights connected to the cable. For the tractor and trailer of the same model or brand, the plug and socket are matched with each other, but when the tractor and the trailer are connected to each other When different models are used, the taillight socket and the plug may not match, and they cannot be plugged and used at will, and cannot be directly connected to work normally.

At the same time, the output voltage of the power system of each model is not the same, which greatly limits the interchangeable use between trailers and tractors of various models

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