Foldable chain type track

Abstract

The invention discloses a foldable chain type track which is formed by hinging unit bodies and comprises an end unit body I, a plurality of middle unit bodies and an end unit body II. Each unit body is provided with a pulley module I, a pulley module II and a rail piece; the pulley modules I on the upper sides of the end unit body I and the end unit body II are used for being connected with a suspension rope, the pulley modules I on the lower sides of the end unit body I and the end unit body II and the pulley modules I of the middle unit body are used for being connected with a traction rope I, and the pulley modules II of the end unit body I, the middle unit body and the end unit body II are used for being connected with a traction rope II. The foldable chain type track has a folded state, a U-shaped curve state and a straight line state, when the foldable chain type track is in the folded state, the length of the foldable chain type track can be greatly reduced, the foldable chain type track is convenient to transport, put and recycle, and the foldable chain type track can adapt to most situations that the distance between the bridge bottom surface and the ground or water surface below the bridge is smaller than the track length in the building and recycling process.

Description

technical field [0001] The invention relates to the technical field of bridge detection equipment, in particular to a foldable chain track. Background technique [0002] In order to avoid safety accidents, it is necessary to regularly inspect the bottom surface of bridges exposed to harsh natural environments for a long time. [0003] At present, the detection of the bottom surface of the bridge is divided into manual detection and machine detection. The efficiency of human inspection is low, and the cost and risk of casualties are high. Machine inspection can improve efficiency, reduce costs and risk of casualties. Among them, the machine inspection can be divided into two types. The first is to take pictures of the bottom of the bridge with a computer vision system on the drone; the second is to build a track on the bottom of the bridge for the car to drive, and then the car is equipped with a computer vision system to take pictures. Photos of the underside of the bridge...

AI Technical Summary

Problems solved by technology

The disadvantage of this solution is: for a bridge with a wide width of 25 meters as an example, the length of the long track that needs to be built is greater than 25 meters, so the transportation, construction and disassembly of the track are more troublesome, which affects the detection efficiency ; In addition, if the distance between the bottom of the bridge and the ground or the water is less than the width, that is, the distance between the bottom of the bridge and the ground or the water is less than 25 meters, the track cannot be changed from the vertical suspension state to the horizontal suspension state, and it can be implemented poor sex

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