Adjustable rear bumper device of truck

Abstract

The invention discloses an adjustable rear bumper device of a truck, and aims to solve the problem of poor protecting function and the like existing in a bumper of an existing truck. The adjustable rear bumper device of the truck comprises a rocker arm, a rear bumper, a hydraulic system, a guiding rail sliding block system, a holder system and an electromagnet system, wherein two hydraulic cylinders of the hydraulic system are fixed on outer end surfaces of the rear ends of left and right longitudinal beams of a frame; the guiding rail sliding block system is arranged on the outer end surfaces of the left and right longitudinal beams arranged on the rear parts of the two hydraulic cylinders, sliding blocks are connected with piston rods of the hydraulic cylinders in the hydraulic system, and the holder system is arranged on the outer end surfaces arranged below the rear ends of the left and right longitudinal beams arranged on the frame; the rocker arm is inserted into a rocker arm holding sleeve in the holder system and is connected with a sliding block shaft in the sliding block system in a rotating manner, the rear bumper is fixed with the rocker arm, an electromagnet in the electromagnet system is fixed on inner side end surfaces of the longitudinal beams arranged on the left and right sides of the frame, and a connecting end of the electromagnet penetrates through the hole formed in the frame and is fixedly connected with a connecting end of a guide rail fixing block.

Description

technical field [0001] The present invention relates to a rear bumper device for vehicles, more precisely, the present invention relates to a two-stage adjustable rear bumper device of the slider rocker type for trucks. Background technique [0002] At present, the research on the rear bumper device of trucks at home and abroad is mainly based on the purely mechanical rear bumper device, which is rigidly connected with the rear frame of the truck, which not only affects the passability of the truck, but also affects The damage to the rear bumper device caused by driving cannot guarantee its good protective function. In addition, because the rear bumper of the truck is relatively high from the ground, when a vehicle such as a car or SUV collides with a truck, it is easy to cause the car or SUV to "drill" into the rear overhang of the truck, causing great casualties. [0003] There are adjustable rear bumper devices proposed by inventions at present, such as the adjusting dev...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problems in the prior art that the rear bumper device of a truck has poor protection function, poor versatility, unsuitable installation, and influence on the trafficability of the truck, and provides a truck slider rocker type Secondary adjustable rear bumper device

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