A LAYING PIPE DEFLECTION DETECTOR AND THE APPARATUS FOR INVESTINGATING LAYING PIPE DEFLECTION USING THE SAME

摘要

A buried pipe deflection detector and a buried pipe deflection inspecting apparatus using the same are provided to perform buried pipe deflection detection on various sizes of pipes by exchanging a brush. A buried pipe deflection detector includes a supporting bar(110), a compressing unit(120), a pressing tube(130), an air pressure sensor(140), and a brush(150). The supporting bar is cylindrical and has a locking part(110a) protruded on one end thereof. The compressing unit is fitted on the supporting bar to slide lengthwise on the supporting bar and has a connecting member(121) for connection with a towing unit. The pressing tube made of elastic material and filled with air is fitted on the supporting bar for being interposed between the locking part and the compressing member. The air pressure sensor connected to the pressing tube detects air pressure inside the pressing tube and outputs a detection signal to an external device. The brush is fixed on the supporting bar.