Locking method and device suitable for rear box door of dump truck

Abstract

The locking device comprises a fixing block, a connecting column is rotationally connected to the middle position of the bottom of the fixing block, positioning supporting plates are fixedly connected to the tops of the outer walls of the two sides of the fixing block, and locking devices are rotationally connected to the outer walls of the two sides of the positioning supporting plates. The two sides of the top of the locking device are fixedly connected with protective top shells, and the side, away from the positioning supporting plate, of the locking device is fixedly connected with a connecting plate. According to the locking method and device suitable for the rear box door of the dump truck, the connecting plate is matched with the connecting column, so that the contact surface of the locking device and the rear box door is increased when the locking device and the rear box door are fixed, the stability of the locking device during working is improved, and a locking rod is driven by a transmission rod to rotate; therefore, the probability that after the rear box door is locked, the rear box door is still loosened is reduced, and the problem that goods loaded on a vehicle are leaked due to the fact that the rear box door is locked and loosened is effectively solved.

Description

technical field [0001] The invention relates to the technical field of dump trucks, in particular to a method and device for locking a rear box door of a dump truck. Background technique [0002] Dump dump truck is a special vehicle that uses the engine power of the vehicle to drive the hydraulic lifting mechanism, tilts its compartment at a certain angle to unload, and relies on the weight of the compartment to reset it. In the process of lifting and dumping, the rear door needs to be opened in time to unload. After the compartment falls, the rear door needs to be closed in time to ensure that the transport material will not be scattered during the driving process. However, the rear compartment door of the vehicle is prone to loosening when locked, resulting in leakage of the loaded and unloaded cargo. In the case of the lock, the stopping effect during locking is reduced, and the service life of the locking device is reduced. [0003] To sum up, when the rear box door of ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a locking method and device suitable for the rear box door of a self-unloading dump truck, which solves the problem that the rear box door of the vehicle is prone to loosening when locked, which leads to easy loading and unloading of goods. Leakage occurs, which reduces the stopping effect when locking and reduces the service life of the locking device

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