Single gas type hydraulic automobile bumper

Abstract

The invention discloses a single gas type hydraulic automobile bumper, which comprises a bumper outer plate and a plurality of single gas type hydraulic buffering devices, wherein the single gas type hydraulic buffering devices comprise pistons, piston rods, cylinder barrels and energy accumulators; the pistons are located in the cylinder barrels; certain ends of the piston rods are connected with the bumper outer plate; the other ends of the piston rods pass through the end parts of the cylinder barrels to be connected with the pistons; oil ports in the bottoms of the energy accumulators are communicated with oil ports in the side surfaces of the bottoms of the cylinder barrels; hydraulic oil is filled in the energy accumulators and the cylinder barrels; gases are also filled in the energy accumulators. By using the hydraulic automobile bumper, the impact force generated when an automobile is impacted can be retarded; the response time is short; moreover, the single gas type hydraulic automobile bumper has the characteristics of being simple in structure and low in cost and needing no hydraulic pump station.

Description

technical field [0001] The invention belongs to the field of automobile safety protection facilities and relates to a single-air hydraulic automobile bumper. Background technique [0002] Automobile bumper is a safety device that absorbs and slows down external impact and protects the body and personnel. It is generally composed of three parts: outer panel, buffer material and beam. The traditional automobile bumper buffers the huge impact force generated during the impact through the stiffness of the bumper material (metal or plastic), but the stiffness of the material is limited, and the weakened body and personnel injury are very small. This kind of bumper can be seen everywhere on the automobile on the current road, and when the automobile collides, the bumper is easy to break or bend under the strong impact force, causing damage to the vehicle body and personnel. At present, there have been hydraulic automobile bumpers, which can reduce the damage to the body and perso...

AI Technical Summary

Problems solved by technology

This kind of bumper can be seen everywhere on the cars on the current road. When the car collides, the bumper is easy to break or bend under the strong impact force, causing damage to the body and personnel.

At present, hydraulic automobile bumpers have appeared, which can reduce the damage to the body and personnel through the buffering effect of hydraulic cylinders, and can also realize automatic control. However, the existing hydraulic bumpers need a hydraulic pump station, which is costly and complicated in structure, and is not suitable. Installed on the car, in addition, the pure hydraulic cylinder cushioning effect has a long response time to the instantaneous impact force

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