Trigger type energy absorption structure and long-distance energy absorption guardrail

Abstract

The invention provides a trigger type energy absorption structure which comprises a trigger piece and an energy absorption assembly. A through cavity and a window are formed in the trigger piece. Theenergy absorption assembly comprises an installation plate, an elastic energy absorption piece and a blocking plate. In the non-triggered state of the trigger type energy absorption structure, the elastic energy absorption piece is contracted in the through cavity, and a second edge of the blocking plate abuts against the inner wall of the trigger piece. In the triggered state of the trigger typeenergy absorption structure, the second edge of the blocking plate is separated from the constraint of the trigger piece, and the elastic energy absorption piece is unfolded and pushes the second edgeof the blocking plate out of the window. The invention further provides a long-distance energy absorption guardrail. According to the trigger type energy absorption structure provided by the invention, the trigger piece is matched with the energy absorption assembly, the blocking plate is released by pushing the trigger piece, the impact force of a foreign object is transmitted to the elastic energy absorption piece through the blocking plate, the kinetic energy of the foreign object is absorbed through the elastic energy absorption piece, and then the foreign object impacting the guardrail finally stops, so that the technical problem that a guardrail can only play a guiding role and is poor in energy absorption effect is effectively solved.

Description

technical field [0001] The application belongs to the technical field of passive safety protection, and more specifically relates to a trigger-type energy-absorbing structure and a long-distance energy-absorbing guardrail. Background technique [0002] With the gradual increase of the number of automobiles in our country, road traffic accidents have gradually become a major hidden danger in the development of our country's transportation industry. Although the number of traffic accidents has decreased in recent years, the total amount is still relatively large, resulting in relatively large personal and property losses. [0003] As the main means to prevent out-of-control vehicles from crossing the central divider or rushing out of the roadbed on the more dangerous roadside sections, guardrails can prevent secondary accidents, effectively reduce the damage of out-of-control vehicles and personnel, and play a role in inducing sight. However, since the guardrails are mostly r...

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a trigger-type energy-absorbing structure and a long-distance energy-absorbing guardrail, including but not limited to solving the technical problems that the guardrail can only play a guiding role and the energy-absorbing effect is poor

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