Connecting rod type rear door locking mechanism for garbage truck

Abstract

The invention relates to a connecting rod type rear door locking mechanism for a garbage truck, which is applied to a carriage body and a rear door which are mutually hinged with the carriage of the garbage truck. The connecting rod type rear door locking mechanism comprises an oil cylinder, a rotating block, a connecting rod and a lock hook, wherein the rotating block and the lock hook are arranged on the side wall of the carriage through pin shafts respectively; one end of the rotating block is hinged with the oil cylinder; the end of a piston rod of the oil cylinder is hinged with the rear door; the other end of the rotating block is hinged with one end of the connecting rod; the other end of connecting rod is hinged with the lock hook; the tail end of the lock hook is provided with a clamping slot which is clamped with a lock pin; the lock pin is fixed on the rear door; and a limit pin is fixed on the carriage body of an area covered by the rotation of the rotating block for limiting the angle of the rotating block which counterclockwise rotates. Actual trials show that the improved rear door locking mechanism has 100 percent of closing success rate of the rear door and has high reliability. The improved carriage detachable garbage truck rear door locking mechanism has greatly improved reliability compared with that of the conventional locking mechanism and prevents the rear door from deforming at the same time.

Description

technical field [0001] The invention relates to a locking mechanism for a connecting rod type rear door of a garbage truck. Background technique [0002] The rear door locking mechanism is a relatively important part of the detachable garbage truck. Its main function is to keep the rear door closed during the transportation of the vehicle. Down. The reliability of the traditional rear door locking mechanism is poor, and it is easy to cause deformation of the rear door. It is necessary to design a new rear door locking mechanism to replace it. [0003] Such as figure 1 As shown, the car body is hinged with the rear door through the flip hinge seat at the upper part, and the rear door is locked at the lower part through the lock hook. The oil cylinder set in the middle can open or close the rear door. The turning hinge seat is a long groove structure in the vertical direction, and when the rear door is closed, the turning pin is positioned at the bottom of the long groove....

AI Technical Summary

Problems solved by technology

From the actual use of garbage trucks, the success rate of closing the rear door is usually only about 60%, and long-term use also leads to deformation of the rear door

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