A high-efficiency energy-absorbing device for graded collapse

Abstract

The invention discloses an efficient energy absorption device capable of achieving graded collapse. The efficient energy absorption device comprises a front shell, a rear shell, a gasket, a filler andan elastic piece. The front shell comprises an inner wall, an outer wall and a connecting wall, the connecting wall is formed through forward expansion and extension, being of a horn structure, of the front end of the inner wall, the outer wall covers the connecting wall and the front end of the inner wall, the front end of the outer wall is connected with the front end of the connecting wall, and an annular groove is defined by the outer wall, the connecting wall and the inner wall; the gasket is arranged in the rear shell, so that the internal space of the rear shell is divided into a frontpart and a rear part by the gasket, the filler is arranged in the space of the rear part of the rear shell, the filler is of a hollow structure, and the elastic piece is located in the middle of thefiller; and the inner wall is inserted into the space of the front part of the rear shell, the gasket is pressed by the inner wall and the elastic piece from the two sides correspondingly, and the diameter of the rear shell is between the maximum diameter and the minimum diameter of the connecting wall. The efficient energy absorption device has the advantages that the energy absorption efficiencyis high, the impact acceleration can be decreased, and the structure is simple.

Description

technical field [0001] The invention relates to a high-efficiency energy-absorbing device for graded collapse, and relates to the technical field of automobile safety. Background technique [0002] With the development of the automobile industry and the gradual improvement of people's living standards, the number of automobiles is increasing, and automobile safety has become an important performance that people are increasingly concerned about. When a car collides, the energy-absorbing device connected to the anti-collision beam plays a vital energy-absorbing role. It can minimize the collision damage suffered by the occupants, reduce the hazards of traffic accidents, and damage the life and property of the driver. Security has effective protection. However, the traditional energy-absorbing box has a single energy-absorbing form, poor energy-absorbing effect, and low energy-absorbing efficiency. When an accident occurs, especially when the vehicle is at high speed, the ene...

AI Technical Summary

Problems solved by technology

However, the traditional energy-absorbing box has a single energy-absorbing form, the energy-absorbing effect is poor, and the energy-absorbing efficiency is low.

When an accident occurs, especially when the vehicle is at high speed, the energy absorption capacity of the existing energy-absorbing box is difficult to effectively buffer or absorb the impact caused by the collision, causing the longitudinal beam and the passenger compartment to bear a large amount of impact energy and generate large impact acceleration, which poses a serious threat to the safety of the occupants

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