Anti-collision protection guardrail of road bridge

Abstract

The invention discloses an anti-collision protection guardrail of a road bridge, and relates to the technical field of road guardrail devices. The guardrail comprises protection mechanisms evenly laidalong a road; each protection mechanism comprises a bottom plate, and a protection device and a trigger device are installed at the upper end of each bottom plate; each protection device comprises amain shaft and an armrest; each main shaft is rotatably sleeved with a sleeve; the front and rear sides of each main shaft are sleeved with torsion springs respectively; a horizontal main pedal is fixedly connected to the left side of each sleeve; a subsidiary pedal is rotatably connected to the left end of each main pedal through a rotating shaft; a tension spring is fixedly connected to the leftend of each bracket; when springs are in a compressed state, insertion rods are located in grooves; each trigger device comprises a support plate; explosive packages are arranged at the bottoms in guiding pipes; the guiding pipes are sleeved with starting compression springs; starting rods are slidingly connected into support pipes. The anti-collision protection guardrail has the advantages thatwhen a vehicle crashes into the roadside guardrail, the collision damage of the vehicle is reduced, pedestrians at the inside side streets of the road are protected, and the damage to the pedestriansis reduced.

Description

technical field [0001] The invention relates to the technical field of road guardrail devices. Background technique [0002] It is often necessary to install anti-collision protection barriers on both sides of the road to prevent vehicles from rushing out of the lane through impact buffering. The general road protection fence only considers the collision and interception of vehicles, and forms a buffer by one-time collision destruction, but does not take into account the harm caused by some road sections to pedestrians. In some road sections, the carriageway is adjacent to the sidewalk, and the sidewalk only relies on bricks to form a road. When leaving the lane and crashing to both sides, it is easy to hit and hurt pedestrians, especially when pedestrians are dragged and squeezed on the protective barrier, causing multiple injuries to pedestrians, and it is difficult to achieve timely escape and rescue. Traditional guardrails cannot solve this problem. And in some road se...

AI Technical Summary

Problems solved by technology

The general road protection fence only considers the collision and interception of vehicles, and forms a buffer by one-time collision destruction, but does not take into account the harm caused by some road sections to pedestrians.

In some road sections, the carriageway is adjacent to the sidewalk, and the sidewalk is only raised by bricks to form a road. When leaving the lane and crashing to both sides, it is easy to hit and hurt pedestrians, especially when pedestrians are dragged and squeezed on the protective fence, causing multiple injuries to pedestrians, and it is not easy to get out of the rescue in time. Traditional guardrails cannot solve this problem

In some road sections, it is inconvenient or unnecessary to add a layer of guardrail between the sidewalk and the carriageway, but the above problems always exist

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