Road height limiting frame

Abstract

The invention relates to the technical field of road height limiting and particularly relates to a road height limiting frame. The frame comprises a first height limiting frame body fixed to a roadbed, wherein a second height limiting frame body is arranged on the roadbed in a sliding mode; a telescopic device is connected between the first height limiting frame and the second height limiting frame; slideways are arranged on the two sides of the roadbed; the slideways are arranged along the length direction of the roadbed; the second height limiting frame comprises stand columns arranged in the two sliding ways in a sliding mode respectively and a cross beam connected with the upper ends of the two stand columns; a buffer air bag is arranged on the side, away from the first height limiting frame, of the beam; a first slipping device used for driving wheels of the vehicle to idle is arranged at the position, close to the second height limiting frame, of the roadbed. The height limiting device has the effect of reducing impact caused by the fact that the vehicle impacts the height limiting frame.

Description

technical field [0001] The present application relates to the field of road height limiting technology, in particular to a road height limiting shelf. Background technique [0002] At present, there are two types of height-limiting racks: fixed height-limiting racks and adjustable height-limiting racks. The fixed height limit frame is further divided into a fixed one-piece height limit frame and a fixed undamaged height limit frame. The fixed one-piece height-limiting shelf is a one-time non-adjustable height-limiting shelf, which intercepts vehicles by the shelf itself. The fixed-type undamaged high-limiting shelf must be lifted by external force, such as a crane, to achieve vehicle passage in an emergency; the fixed one-piece high-limiting shelf is mainly used The portal frame at the entrance of bridges, culverts, and tunnels is generally welded by steel structures to protect bridges, culverts, and tunnels. [0003] The existing Chinese invention patent with the notifica...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that the height-limiting pole and the vertical poles on the left and right sides are welded to death. When the vehicle does not notice the height-limiting pole, it is easy to directly collide with it, and the vehicle cannot be stopped in time, which may easily cause the vehicle to collide and be damaged.

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