In-pipe threading pay-off device

The utility model belongs to the technical field of building electric power construction devices, and particularly discloses an in-pipe threading pay-off device which comprises a support and a pay-off shaft, the support comprises two bases, two stand columns and two connecting shafts, each base is provided with one stand column, each stand column is horizontally and fixedly provided with one connecting shaft, and the pay-off shaft is connected with the stand columns. The two ends of the pay-off shaft are rotationally connected with the two connecting shafts, a plurality of winding positions are arranged on the pay-off shaft, and coils are wound around the winding positions. The device is reasonable in structure, and the working intensity is reduced; the structure is simple, the manufacturing cost is very low, the use is very convenient, the working efficiency is greatly improved, and meanwhile, the cost is saved; and after the coil is used up, the sleeve and the positioning mold are pulled out, the coil can b