Auxiliary device for pipeline wall thickness detection

The utility model provides an auxiliary device for pipeline wall thickness detection, which comprises a handle, one end of the handle is fixedly provided with an upper rod and a lower rod, the upper rod is elastically connected with an upper extrusion shaft, and the lower rod is provided with two lower extrusion shafts and a first laser range finder located between the two lower extrusion shafts. An upper rod and a lower rod are arranged, an upper extrusion shaft and a lower extrusion shaft are correspondingly arranged on the upper rod and the lower rod respectively, the upper extrusion shaft is in elastic sliding fit with the upper rod, and when the wall thickness of a gas pipe needs to be detected and the upper extrusion shaft and the lower extrusion shaft are used for oppositely extruding the outer inner wall of the gas pipe, the whole device is in a stable state; meanwhile, the second laser range finders and the first laser range finders on the upper rod and the lower rod can accurately obtain detection d