Segmented extension type bumper energy absorption structure

Abstract

The invention relates to a segmented extension type bumper energy absorption structure mainly comprising a segmented bumper, an energy absorption element, lateral baffle plates, an internal iron, a self-lock pin, a self-lock pin seat, a stopping seat, a propelling sloping block, springs, a spring dowel pin, a guide screw, a guide screw nut, a sliding track, a shell, a motor fixing plate, a motor, and the like, wherein the extending end of the motor is connected with the guide screw; the guide screw nut is meshed with the guide screw and is connected with the propelling sloping block through the spring dowel pin; the guide screw nut and the propelling sloping block can reciprocate when being arranged in the shell; the bottom of the self-lock pin supports against the propelling sloping block, and the upper part of the self-lock pin is arranged in the self-lock pin seat; the spring dowel pin and the self-lock pin are both provided with the springs; the stopping seat is fixedly connected with the front end of a longitudinal beam after being linked with the shell through a bolt; the rear end of the energy absorption element is fixedly connected with the self-lock pin seat, and the front end of the energy absorption element is welded with the internal iron; the internal iron is welded between the two lateral baffle plates; the front ends of the lateral baffle plates are connected with the segmented bumper, and the lateral surfaces of the lateral baffle plates are connected with the longitudinal beam of a vehicle through the sliding track. The segmented extension type bumper energy absorption structure has the advantages of simple structure, low cost, reliable collision absorption energy and is suitable for various vehicles.

Description

1 technical field [0001] The invention mainly relates to the field of automobile safety design, in particular to a section-expandable bumper structure, and the structure can absorb more collision energy when a collision occurs, and ease the impact force of the collision. 2 background technology [0002] The vehicle bumper is a kind of safety protection device fixed on the front and rear parts of various automobiles. Existing vehicle bumpers are mainly made of materials such as metal, plastics, and glass fiber reinforced plastics, and are rigidly connected with longitudinal beams and vehicle bodies. When low-speed collisions occur, they can protect drivers, passengers and vehicles. However, when the vehicle has a high-speed frontal collision, the effect of the bumper is very limited. The fundamental reason is that the traditional bumper basically does not have an energy-absorbing structure. At present, although a retractable bumper structure has been proposed, its working pr...

AI Technical Summary

Problems solved by technology

However, this retractable bumper has a complicated structure and high cost, and since the retractable bumper pushes out the bumper as a whole, this will increase the load on the telescopic mechanism, which is not conducive to the arrangement of the bumper lights, and protrudes The front part of the rear vehicle is damaged

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