Expressway deceleration crash barrier

Abstract

The invention aims to provide an expressway deceleration crash barrier, which combines two functions of collision avoidance and automobile deceleration to improve the driving safety of an expressway.The expressway deceleration crash barrier comprises a plurality of fixing columns, a cross rod used for being connected with the fixing columns, a plurality of supporting columns, sleeves and connecting rods, the top ends of the supporting columns are fixedly connected with the cross rod or the fixing columns through the connecting rods, the sleeves are installed on the supporting columns throughbearings, suction cup devices and / or protruding deceleration protruding parts are arranged on the outer circumferential faces of the sleeves at intervals, the bottom ends of the sleeves are provided with protruding deceleration blades used for being buried underground. When an automobile brake fails and the side face collides with the sleeves, the side face of the automobile is sucked by the suction cup devices or blocked by the deceleration protruding parts, so that the sleeves are driven to rotate, due to the fact that the deceleration blades are arranged at the bottom ends of the sleeves, the sleeves can bear great resistance of the deceleration blades during rotation, the resistance is transferred to the automobile through the sleeves, and resistance is provided for automobile deceleration.

Description

technical field [0001] The invention belongs to the technical field of road facilities, and in particular relates to a highway anti-collision barrier. Background technique [0002] Highway anti-collision barriers are one of the essential facilities for expressways. They can absorb collision energy through self-deformation or vehicle climbing, thereby changing the direction of the vehicle and preventing the vehicle from driving out of the road or entering the opposite lane, thus greatly reducing the impact on the vehicle. Road damage improves vehicle safety. In some highways with long downhill sections, in order to avoid brake failure due to overheating of automobile brakes, a buffer slope is often set on the right side of the direction of travel for vehicle deceleration. The setting of the above buffer slope has certain limitations on space Requirements, it is sometimes difficult to find a suitable location to set up a buffer slope on a highway between mountains. Therefore,...

AI Technical Summary

Problems solved by technology

In some highways with long downhill sections, in order to avoid brake failure due to overheating of automobile brakes, a buffer slope is often set on the right side of the direction of travel for vehicle deceleration. The setting of the above buffer slope has certain limitations on space It is sometimes difficult to find a suitable location to set up a buffer slope on a highway between mountains. Therefore, it is necessary to design another vehicle deceleration device to reduce casualties caused by brake failure.

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