Hoisting equipment for double-layer corrugated pipe production

The utility model discloses hoisting equipment for double-layer corrugated pipe production, and relates to the technical field of double-layer corrugated pipes. The lifting device comprises a main lifting frame, a servo motor is fixedly installed on the upper surface of the main lifting frame, the output end of the servo motor is fixedly connected with a rotating rod through a coupler, the outer surface of the rotating rod is fixedly sleeved with a driving gear, a threaded rod is rotationally connected between the inner walls of the main lifting frame, and the outer surface of the threaded rod is fixedly sleeved with a driven gear. Sliding grooves are formed in the inner side wall of the main hoisting frame, pressing plates are in threaded connection with the outer surfaces of the threaded rods, one ends of the pressing plates extend out of the sliding grooves and are slidably connected with the sliding grooves, limiting rods are fixedly connected between the upper inner wall and the lower inner wall of the m