Automatic triggering umbrella type protection device for preventing pier from being damaged by collision

Abstract

The invention discloses an automatic triggering umbrella type protection device for preventing a pier from being damaged by collision. The device mainly comprises an umbrella-shaped protection part consisting of a plurality of telescopic rigid support frames, a buffer cushion layer made of a rubber material is wrapped at a corresponding position on the pier, and the upper ends of support umbrellastands are fixed on a buffer energy-absorbing rubber cushion layer on the pier. The top end of each support frame is provided with a circular hole position, and a fixing steel ring penetrates throughthe hole positions and is fixedly connected to the corresponding position. Idler wheels are arranged at the bottom end and can roll on the ground. Sleeve type telescopic steel frameworks are arrangedin the middle, the frameworks are connected through transverse metal arm guard frameworks, and finally all the vertical frameworks are connected into an umbrella type protection whole. When a rollingstone impact load or other force impacts the protection device, a spring at the position is compressed to enable the corresponding umbrella stand to contract, then a composite switch lock catch connected with the spring is opened, then all the other springs are opened and bound, finally the whole umbrella type protection device is opened rapidly, and the pier is prevented from being impacted directly.

Description

technical field [0001] The invention belongs to the field of bridge disaster prevention and mitigation and safety protection engineering, and in particular relates to an automatic trigger type umbrella protection device for preventing bridge pier impact damage. Background technique [0002] Rockfall disaster is a common geological disaster in alpine and canyon regions all over the world. It is a sudden and violent dynamic geological phenomenon on steep slopes. Under the action of gravity, earthquake, rainfall or other external forces, the unstable rock and soil mass on the slope suddenly collapses downwards, rolls, jumps, collides with each other, disintegrates during the movement, and finally accumulates at the foot of the slope. Burying and other methods pose a serious threat to structures such as roads, railways, and protective buildings below the slope. The particle size of the rolling stones formed by the collapse ranges from a few centimeters to several meters, or eve...

AI Technical Summary

Problems solved by technology

However, practice shows that the structure cannot absorb energy, and the concrete wrapped in it is often severely cracked, and the protection effect is not good.

Another expandable polystyrene (EPS) wrapped cushioning technology also limits its application due to problems such as poor energy consumption, easy aging, and difficult construction.

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