Energy absorbing element and energy absorbing device

Abstract

The invention provides an energy absorbing element. The energy absorbing element comprises two first mounting plates, two bent plates which are connected at interval positions of the two first mounting plates and distributed symmetrically, and an energy absorbing piece which stretches along the symmetric axes of the two bent plates and has two opposite ends respectively and fixedly connected withthe two first mounting plates, the bent plates comprise bent bodies and two connecting parts which are positioned at two opposite ends of the bodies and respectively connected with the two first mounting plates; the bent positions of the bodies are provided with grooves, and the thicknesses of the connecting parts are less than that of the bodies; the invention further provides an energy absorbingdevice. Cooperation among the first mounting plates, the bent plates and the energy absorbing piece is adopted, by accurately reducing local structure strength of the bent plates, the energy absorbing piece is subjected to folding shrinkage deformation along the symmetric axes of the two bent plates in the process of collision, and an additional guiding structure does not require to be arranged,thereby solving the problems that the energy absorbing device is unable to bear eccentric load under the condition of not having a guiding structure to support and a backward moving space is reservedwhen the guiding structure needs installing.

Description

technical field [0001] The invention belongs to the technical field of passive safety protection devices, and more specifically relates to an energy-absorbing element and an energy-absorbing device. Background technique [0002] At present, passive safety protection devices with the basic function of buffering energy absorption are widely used in various industries, such as aerospace, transportation, construction, etc. Reduce the damage to the occupant's personal and property. It is generally required that passive safety protection devices can absorb energy efficiently and reliably under various collision conditions, one of which is to absorb energy normally under partial load conditions without overturning failure. [0003] Generally speaking, according to different energy-absorbing principles, energy-absorbing devices include crushing energy-absorbing, metal tube variable-diameter energy-absorbing, metal-cutting energy-absorbing and other types. Among them, crushing ener...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an energy-absorbing element and an energy-absorbing device to solve the problem that in the prior art, the energy-absorbing device cannot bear the eccentric load without the support of the guiding structure, and the guiding structure needs to be reserved during installation. Technical issues with backspace

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