Urban rail corrugation fault detection device

The invention discloses an urban rail steel rail corrugation fault detection device which comprises a bottom plate, side plates, a moving assembly, a driving assembly and a rotating assembly, the side plates are fixed to the upper outer walls of the two sides of the bottom plate, the moving assembly is arranged on one side of each side plate, the driving assembly is arranged on the outer wall of the bottom end of the bottom plate, and the rotating assembly is arranged on the outer wall of the top end of the bottom plate; a plurality of first connecting rods are rotationally mounted on one side of the side plate, and first mounting blocks are rotationally mounted on the outer wall between the first connecting rods; by means of the arranged moving assembly, equipment is moved to the road surface from the track, road surface moving wheels can make contact with the ground, the equipment can move on the road surface conveniently, manual carrying is omitted, the labor intensity is reduced, the equipment has the dam