Quick assembly type expressway multistage buffer guardrail

Abstract

The invention discloses a quick assembly type expressway multistage buffer guardrail. The quick assembly type expressway multistage buffer guardrail comprises a moving unit, a multi-stage guardrail main body unit and an intelligent control unit; the moving unit comprises a sliding rail and a positioning rail which are in parallel, wherein the positioning rail comprises a fixing rail formed by a plurality of intervals; the multi-stage guardrail main body unit is arranged in the sliding rail in a sliding mode; the multi-stage guardrail main body unit comprises a plurality of sub-guardrails; eachsub-guardrail comprises a middle protective plate, a buffer protective plate and a supporting unit; each buffer protective plate comprises outer protective plates, pushing mechanisms and an air bag;the air bag is arranged between the front end outer protective plate and the middle protective plate; the pushing mechanisms are symmetrically connected to the corners of the front end outer protective plate and the middle protective plate; the rear end outer protective plate is connected to the rear side of the middle protective plate in a vertically movable manner; and the intelligent control unit comprises a controller, a stress monitoring module and an impact guardrail track prediction module. According to the quick assembly type expressway multistage buffer guardrail of the invention, through multi-stage buffering, the collision speed of a vehicle is greatly reduced, and casualties and damage to the vehicle are reduced to the minimum.

Description

technical field [0001] The invention relates to the technical field of expressway guardrails, in particular to a quick-assemble multi-stage buffer guardrail for expressways. Background technique [0002] With the development of the times, the number of vehicles has increased, and the number of highways built is also increasing. At present, guardrails are generally installed on both sides of the expressway, mostly composed of prefabricated parts and component assemblies, and the guardrails are mostly set in corrugated shapes. So that when the vehicle hits the guardrail out of control, it can absorb a certain amount of impact energy through the deformation of the guardrail board, reduce the speed of the vehicle's impact, and play a certain buffering role. However, the composition, assembly, transportation and installation of the traditional guardrail are relatively laborious. And the cushioning deformation effect is low, and when the vehicle collides with the guardrail under t...

AI Technical Summary

Problems solved by technology

[0002] With the development of the times, the number of vehicles increases, and the number of highways built is also increasing. At present, guardrails are generally installed on both sides of the expressway, mostly composed of prefabricated parts and component assemblies, and the guardrails are mostly set in corrugated shapes. So that when the vehicle hits the guardrail out of control, it can absorb a certain amount of impact energy through the deformation of the guardrail board, reduce the speed of the vehicle's impact, and play a certain buffering role. However, the composition, assembly, transportation and installation of the traditional guardrail are relatively laborious. And the buffer deformation effect is low. When the vehicle collides with the guardrail at a high speed, the buffer effect of the guardrail is not good, and the casualties and vehicle damage are still quite serious.

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