Road and bridge security and protection height limiting device

Abstract

The invention provides a road and bridge security and protection height limiting device which comprises a first security and protection mechanism, a second security and protection mechanism, a first detection switch and a controller, the second security and protection mechanism and the first security and protection mechanism are distributed front and back in the vehicle driving direction, and the first security and protection mechanism comprises a first security and protection support and a first speed reducing mechanism; the first speed reducing mechanism comprises a pressure applying frame and a pressure applying mechanism, the second security and protection mechanism comprises a lifting mechanism, a movable speed reducing pile and a clamping positioning mechanism, the lifting mechanism comprises a lifting plate and two sets of lifting mechanisms, and the two sets of lifting mechanisms each comprise a fixed stand column, a driving motor, a winch and a steel wire rope; and the movable speed reducing pile comprises a triangular pile body, a first buffer spring and a buffer plate. The height limiting device not only has a height limiting function, but also can effectively decelerate the vehicle once the vehicle collides with the height limiting device, and can protect the vehicle to the greatest extent, so that serious consequences can be avoided.

Description

technical field [0001] The invention relates to a safety height limiting device for roads and bridges. Background technique [0002] Elevation-limiting viaduct is a portal frame structure used at the entrance of bridges and tunnels to protect bridges and tunnels and prevent super-high vehicles from hitting bridges and tunnels and causing damage to bridges and tunnels; in addition, vehicles hitting bridges and tunnels It will also cause personal and property damage to the vehicle and driver. Most of the height limiters in the prior art are connected in the form of welding, that is, the height limiters are fixedly connected at the entrances of bridges and tunnels. In this way, once a large truck collides with the height limiter, it will cause serious damage to the vehicle. Injuring the vehicle driver and passengers will bring more serious consequences. Contents of the invention [0003] The purpose of the present invention is to provide a road and bridge security height li...

AI Technical Summary

Problems solved by technology

Most of the height limiters in the prior art are connected in the form of welding, that is, the height limiters are fixedly connected at the entrances of bridges and tunnels. In this way, once a large truck collides with the height limiter, it will cause serious damage to the vehicle. Injure the driver and passengers of the vehicle, bringing more serious consequences

Images