A protection device after collision of viaduct bottom

Abstract

The invention relates to the technical field of viaduct protection, and discloses a protection device for a viaduct bottom after collision, including a bridge, the bottom of the bridge is fixedly installed with a shock absorber, and both sides of the shock absorber are movably connected to the bottom of the bridge. Pulley, the surface of the pulley is movably connected with crawlers, the inside of the bridge is fixedly equipped with buffer devices, and the inner walls of both sides of the bridge are provided with chutes. When the vehicle collides with the bottom of the viaduct under special circumstances, the roof and the bridge will Bottom contact, under the action of the inner spring of the shock absorber, the track is in contact with the roof and moves. At this time, due to the height of the vehicle itself, an upward force will be exerted on the bottom of the viaduct, which will lift the track and make the inside of the buffer device The bellows compress a certain stroke, and keep the roof and track moving, so that the vehicle can move forward normally and drive out of the bottom of the viaduct, protecting the safety of the viaduct, vehicles and people to the greatest extent.

Description

technical field [0001] The invention relates to the technical field of viaduct protection, in particular to a protection device for viaduct bottom collision. Background technique [0002] Viaduct, a kind of bridge, generally refers to a bridge that crosses deep trenches and canyons to replace high embankments, and bridges that span roads in urban bridges, supported by high-supported towers or pillars in urban traffic roads, viaducts play a role in urban traffic It has played a great role, making full use of the urban area and slowing down the pressure of urban traffic. Since the viaducts are supported by piers in mid-air, the height is limited. When some large trucks pass through without knowing the height limit, they will collide and make the vehicles The viaduct is stuck at the bottom or the viaduct is damaged. Since there are also vehicles on the viaduct, once an accident occurs, the top of the vehicle will be hit and people will be injured. In addition, damage to the bri...

AI Technical Summary

Problems solved by technology

[0002] Viaduct, a kind of bridge, generally refers to the bridge that crosses deep ditch canyon instead of high embankment, and the bridge that spans road in urban bridge, supported by high supporting tower or pillar in urban traffic road, viaduct plays a role in urban traffic It has played a great role, making full use of the urban area and reducing the pressure of urban traffic. Since the viaducts are supported by piers in mid-air, the height is limited. When some large trucks pass through without knowing the height limit, they will collide and make the vehicles Stuck at the bottom of the viaduct or damage the viaduct, because there are also traffic on the viaduct, once an accident occurs, the top of the vehicle will be hit, and people will be injured. In addition, damage to the bridge deck will also affect the smooth flow of the entire viaduct. The viaduct is expensive and maintenance It is very troublesome to look up, so a new type of device for protecting the viaduct came into being

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