Foldable bridge detecting arm and detecting vehicle

Abstract

The invention discloses a foldable bridge detecting arm and a detecting vehicle. First slide rails are fixed on the upper surface of a support arm; first slide bars are projected on the two sides of the first slide rails, and are slidingly connected with bridge detecting devices; a flexible slide rail is fixed on the upper surface of the hinged place of the slide rails; the adjacent first slide rails are connected through the flexible slide rail; second slide bars matched and fixedly connected with the first slide bars are formed on the flexible slide rail; a rotating mechanism is connected tothe hinged place of the support arm; and n is not smaller than 3. The foldable bridge detecting arm is simple in structure and convenient to use; and operation rails of the bridge detecting device can be changed according to bridge bottom structures to adapt to the corresponding bridge bottom structures, so that no-dead-angle detection of the bridge bottoms is realized, the detecting effect is guaranteed, the crack detecting rate of bridges is increased, and the bridges are timely cured to prolong the life.

Description

technical field [0001] The invention belongs to the field of machinery, and in particular relates to a foldable bridge detection arm and a detection vehicle. Background technique [0002] Cracks on the bottom surface of the bridge mean that structural damage has occurred inside the bridge, and outside water vapor can easily enter the inside of the bridge, thereby accelerating the corrosion of steel bars, which in turn leads to a decrease in the bearing capacity of the bridge, seriously affecting people's safe travel. Therefore, capturing and inspecting the cracks on the bottom surface of the bridge in time is of great significance for predicting or discovering engineering dangers in time, ensuring the reliable operation of the bridge and prolonging the service life of the bridge. The bridge inspection vehicle is a commonly used bridge crack detection equipment, that is, the vehicle is connected to a detection arm extending to the bottom of the bridge as a track, and the came...

AI Technical Summary

Problems solved by technology

[0003] However, the problem with the above-mentioned structure is that the bridge is composed of boxes, and its bottom is uneven. In particular, there will be deep and wide gaps between the boxes, and the detection arm of the existing inspection vehicle cannot be used according to the structure of the bridge. The shape of the bottom is adjusted, so that when the bridge is detected, it is difficult to detect because the distance between the camera and the detection part is too long or there is occlusion, and there is a detection blind spot

like figure 1 In the single box bridge shown, the distance between the two ends and the detection arm is too large, resulting in a total length of about 8 meters at both ends that cannot be detected, resulting in detection blind spots

For bridges with multiple boxes, due to the gaps between the boxes, it is more serious, such as figure 2 shown

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