Pay-off device for power installation

The utility model discloses a pay-off device for electric power installation, which comprises a base, two L-shaped plates are arranged above the base, two hydraulic cylinders are arranged between the two L-shaped plates and the base, a round rod which is rotatably connected with the L-shaped plates is arranged on the L-shaped plates in a penetrating manner, a handle and a screw which are coaxial are arranged at two ends of the round rod, and the handle and the screw are arranged on the base. A threaded rod is arranged on the base, a sleeve in threaded connection sleeves the threaded rod, a circular plate is fixedly connected to the other end of the sleeve, a guide mechanism is arranged between the circular plate and the L-shaped plate, a conical block is coaxially and rotationally connected to the other end of the circular plate, the hydraulic cylinder is installed on the base, and the output end of the hydraulic cylinder is fixedly connected with the bottom of the L-shaped plate. The hydraulic cylinder can r