A locking mechanism for a shielded trailer

Abstract

The invention relates to a trailer-shielding locking mechanism comprising a trailer body and a frame located in front of the trailer body. A connecting plate matched with a trailer driving chain is arranged at the inner bottom of the frame, a crank connecting rod is rotationally connected onto the connecting plate, the upper portion of the crank connecting rod is rotationally connected with the lower portion of a lock cylinder, the top end of the lock cylinder is matched with a latch hook at the front end of the trailer body in appearance, the upper portion of the lock cylinder is provided with a lock cylinder hole, a lock cylinder pin tumbler is arranged in the lock cylinder hole, a push rod is arranged at the front end of the lock cylinder pin tumbler in a squeezing manner, an ejection rod which is mounted on the trailer body is arranged in the rear of the lock cylinder, and the ejection rod, the lock cylinder pin tumbler and the push rod are linear when a trailer is in the moving state. The trailer-shielding locking mechanism has the advantages that the locking mechanism is triggered automatically through the ejection rod to assist in stopping the trailer; the whole locking mechanism is a purely-mechanical device, thereby being stable and reliable in performance; due to the application of springs, wear of the locking mechanism and the trailer body is greatly reduced; the whole locking mechanism is automatically triggered, stable and reliable in performance and low in wear.

Description

technical field [0001] The invention relates to the technical field of parking brakes for trailers, in particular to a locking mechanism for shielding trailers. Background technique [0002] The trailer has multiple functions such as lifting, pulling and lifting traction. The quality of the trailer itself is more than two tons, and the quality of the super large trailer is more than 80 tons. When the trailer is working, the weight of the car body plus the weight of the cargo is often very large. The power is huge, and the brakes and clutches that come with the car body can meet the needs during normal parking, as long as there is enough braking distance. But in some emergencies, when the high vehicle speed requires an emergency stop, the brakes and clutches of the trailer itself can not be well satisfied. At this time, if the vehicle is forced to stop by the brakes, it will often cause an accident or damage to the car body itself. Therefore, a reliable auxiliary braking or...

AI Technical Summary

Problems solved by technology

However, in some emergency situations, when the vehicle speed needs to be stopped in an emergency, the brake and clutch of the trailer itself cannot be well satisfied. At this time, if the vehicle is forced to stop by the brake, it will often cause accidents or damage to the vehicle body itself.

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