Municipal engineering drainage pipeline straightness detection device

The utility model relates to the technical field of straightness detection devices, in particular to a municipal engineering drainage pipeline straightness detection device which comprises a bottom plate, a clamping groove is formed in the top of the bottom plate, a clamping rod is inserted into the inner wall of the clamping groove, a fixing groove is welded to the top of the bottom plate, and anair cylinder is connected to the top of the bottom plate through a bolt. The municipal engineering drainage pipeline flatness detection device comprises a fixing groove, a cylinder is arranged in thefixing groove, a lifting column is inserted into the top of the cylinder, a detection mechanism is arranged on the top of the lifting column, a pipeline is inserted into the inner wall of the fixinggroove, and a top cover is inserted into the top of the pipeline. The first rope is installed in the clamping rod, the motor is started, the motor drives the rotating rod to rotate, the rotating rod drives the first rope to rot