A car crash buffer

Abstract

The invention provides an automobile collision buffer which comprises dash pots fixed to an automobile beam, wherein a front buffer zone and a back buffer zone are arranged in each dash pot; each front buffer zone and the corresponding back buffer zone are separated by a fixed sealing column; a through hole used for communicating each front buffer zone with the corresponding back buffer zone is formed in the fixed sealing column; a piston and a compression spring are arranged in each buffer zone; the front end of each dash pot stretches out of an ejector rod of the corresponding piston; a collision contact device is fixed to the top end of the ejector rod of each piston; each collision contact device comprises a cross-shaped framework composed of U-shaped groove steel; a spring is arranged in each piece of U-shaped groove steel; the external circumference of each spring is coated with rubber; and an airbag is arranged in an inner hole of each spring. According to the buffer, when automobiles collide, most impact energy can be absorbed by virtue of the three-time buffer function of the springs, so that the automobile collision force can be reduced to the lowest, a buffer function is truly achieved, and the harm to people and automobiles is greatly reduced.

Description

Technical field [0001] The invention relates to an automobile safety protection device, in particular to an automobile collision buffer. Background technique [0002] Today, with the rapid development of society, automobiles have long become the main means of people's transportation and transportation. The number of automobiles is constantly increasing, and traffic accidents are also on the rise. Car collisions occupy a large proportion. At present, the device for buffering collisions of automobiles is generally to add bumpers made of thin-walled stainless steel tubes or thin-walled "U"-shaped channel steel in the front and rear of the car. The bumper and the car are rigidly connected. When the car collides, , The deformation of the stainless steel tube or channel steel that is the first to contact can slow down the collision force of the car. The disadvantage of this kind of device is that it is rigidly connected, so the collision mitigation force it produces is very small, whi...

AI Technical Summary

Problems solved by technology

The disadvantage of this kind of device is that it is a rigid connection, so the collision mitigation force it produces is very small, so that the impact force on the car is large, and the harm to people and vehicles is also increased.

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