An integral hoisting protection device for a pedestrian bridge

Abstract

The invention discloses an integral hoisting protection device for a pedestrian bridge, belonging to the field of hoisting protection. An integral hoisting protection device for a pedestrian bridge comprises a moving box. The inner wall of the bottom side of the moving box is fixedly connected with two symmetrical horizontal plates. The opposite sides of the horizontal plate are rotatably connected with rotating shafts, and the close ends of the two rotating shafts are fixedly connected with a first bevel gear, the right side of the moving box is rotatably connected with a driving shaft, and the right end of the driving shaft is fixedly connected with a turning handle, The drive shaft extends to the inside of the moving box and is fixedly connected with a second bevel gear, the second bevel gear meshes with the first bevel gear, and two sets of telescopic plates are fixedly connected to the opposite sides of the two horizontal plates. The two sets of telescopic rods extend to the outside of the moving box and are fixedly connected with a moving plate, which can be realized to avoid the reverse pull of the installer due to the swing of the bridge after the bridge is lifted by the hoisting device during the installation of the overpass. , causing damage to the life and health of the installer.

Description

technical field [0001] The invention relates to the field of hoisting protection, in particular to an integral hoisting protection device for a pedestrian bridge. Background technique [0002] Pedestrian bridge is also called pedestrian overpass. It is generally built in areas with high traffic flow and dense pedestrians, or on intersections, squares and railways. Pedestrian bridges only allow pedestrians to pass, and are used to avoid conflicts when traffic flow and pedestrian flow planes intersect, ensure people's safe crossing, increase vehicle speed, and reduce traffic accidents. [0003] During the installation of pedestrian bridges, the overall installation is often adopted. In the installation process of some small pedestrian bridges, after the bridge is hoisted by the hoisting device, in order to avoid the large shaking of the bridge and the inability to directly align the bridge to the bridge column Generally, the installer needs to stand on the bridge column and ...

AI Technical Summary

Problems solved by technology

[0003] When the pedestrian bridge is installed, it is often installed as a whole. In the installation process of some small pedestrian bridges, after the bridge is hoisted by the hoisting device, in order to avoid the large shaking of the bridge and the inability to directly align the bridge to the bridge column In general, the installer needs to stand on the bridge column and use the rope connected to the hoisting device for auxiliary pulling, but because the bridge is heavy, sometimes the kinetic energy generated when swinging is relatively large, and it is easier to pull the installer in the opposite direction through the rope , causing damage to the life and health of installers

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