Locking device and engineering machinery vehicle

Abstract

The invention discloses a locking device and an engineering machinery vehicle, and relates to the technical field of engineering machinery vehicles. The locking device is used for locking a first mounting part and a second mounting part which are matched with each other, the locking device comprises a hydraulic cylinder, the hydraulic cylinder comprises a cylinder body and a piston rod, the piston rod is slidably arranged in the cylinder body through a piston, and a locking hook is arranged at the end, away from the piston, of the piston rod; the cylinder body is fixed to the first installation piece, the first installation piece and the second installation piece are located between the cylinder body and the locking hook after being matched, the piston rod shrinks, and the locking hook can abut against the second installation piece so as to lock the first installation piece and the second installation piece; and when the piston rod extends, the locking hook is separated from the second mounting piece, so that the first mounting piece and the second mounting piece are unlocked. The first mounting piece and the second mounting piece between the cylinder body and the locking hook can be locked and unlocked by controlling the piston rod to contract and extend, so that the first mounting piece and the second mounting piece are quick and convenient to disassemble and assemble, and are safe and reliable.

Description

technical field [0001] The invention relates to the technical field of construction machinery vehicles, in particular to a locking device and construction machinery vehicles. Background technique [0002] Electric construction machinery vehicles have environmental performance advantages, but construction machinery vehicles need to operate continuously most of the time, and customers have an anxiety problem about the battery life of electric construction machinery vehicles. However, this solution increases the cost of the whole machine and the space requirements of the whole machine, and the purchase cost increases. [0003] At present, in order to solve the problem of battery life, construction machinery vehicles usually adopt the solution of replacing batteries. Compared with road machinery such as automobiles, construction machinery vehicles have harsh working environment and large vibration and impact. Currently, construction machinery frames and battery packs are mostly ...

AI Technical Summary

Problems solved by technology

[0002] Electric construction machinery vehicles have the advantages of environmental protection performance, but construction machinery vehicles need to work continuously most of the time, and customers have battery life anxiety about electric construction machinery vehicles; However, this solution increases the cost of the whole machine and the space requirements of the whole machine, and the purchase cost increases

[0003] At present, in order to solve the problem of battery life, construction machinery vehicles usually adopt the solution of battery replacement. Compared with road machinery such as automobiles, construction machinery vehicles have harsh working environments and large vibration shocks. Currently, construction machinery vehicles are mostly installed with construction machinery frames and battery packs. The scheme of frame integration (welding or bolt connection) realizes the battery pack replacement by replacing the battery or removing the mounting bolts. This method of battery pack replacement requires bolt tightening or loosening during the replacement process. On-site The operation is difficult, the replacement time is long, and the operator is prone to fatigue

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