Mechanical pipeline dredging device

The mechanical pipeline dredging device comprises a threaded rod structure, a baffle structure and an internal thread motor, the baffle structure is movably connected to the inner side surface of the threaded rod structure, the internal thread motor is arranged on the outer side surface of the threaded rod structure, and the threaded rod structure comprises a drill bit unit, a threaded rod unit and a connecting unit. The connecting unit is in threaded connection with the rear side surface of the drill bit unit, the baffle structure comprises a rotating unit and a compression-resistant unit, the rotating unit is movably connected with the inner side surface of the threaded rod unit, and the compression-resistant unit is fixedly connected with the inner side surface of the threaded rod unit. According to the mechanical pipeline dredging device, the threaded drill bit drives the threaded rod to be screwed into the blocked mechanical pipeline, the pull-back baffle can be affected by resistance and then retracts t