Anticollision device for rear of truck

Abstract

The invention discloses an anticollision device for the rear of a truck, which comprises a collision cross bar and a pair of screw shearing energy absorbers arranged on both sides of the rear of a truck, wherein the thread shear energy absorbers respectively comprise a crank, a connecting rod, an energy absorbing screw and a shear slide block. The energy absorbing screws are arranged on a frame of the truck, the shear slide blocks are sleeved on the energy absorbing screws, the upper ends of the cranks are hinged to the frame, the upper ends of the connecting rods are hinged to the shear slide blocks, the lower ends of the connecting rods are hinged to the lower ends of the cranks, and the collision cross bar is connected with the lower ends of the connecting rods or the cranks of the thread shear energy absorbers. The anticollsion device for the rear of a truck has the advantages of simple structure, simple disassembly and assembly and stable absorption of collision energy, and prevents a rear-ended car from entering space below a truck.

Description

technical field [0001] The invention relates to a vehicle protective device, in particular to an anti-collision device at the rear of a truck. Background technique [0002] At present, with the development of the economy, the number of trucks and cars has increased simultaneously, and the accident rate of cars colliding with trucks is relatively high, and because the compatibility between the two is extremely bad, the consequences of collisions are extremely serious, and the rear-end vehicles are often killed. The current anti-collision bar at the rear of the truck usually cannot effectively prevent the car from getting into the bottom of the truck, and during the collision process, due to the high rigidity of the rear of the truck, the collision energy is almost completely absorbed by the car, resulting in excessive deformation of the car, and the occupants in the car often death or serious injury. Contents of the invention [0003] The technical problem to be solved by ...

AI Technical Summary

Problems solved by technology

The current anti-collision bar at the rear of the truck usually cannot effectively prevent the car from getting into the bottom of the truck, and during the collision process, due to the high rigidi

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