Special tap switch maintenance device

The utility model discloses a special tap switch maintenance device which comprises a lifting support, a servo motor and a lifting hook, universal idler wheels are installed on the periphery of the bottom of the lifting support, electric telescopic rods are further installed on the periphery of the bottom of the lifting support, and the telescopic ends of the electric telescopic rods are fixedly connected with permanent magnets. A servo motor is fixedly installed on the lifting support, a rope winding drum is installed at the output end of the servo motor, a lifting rope is wound on the rope winding drum, a set of fixed pulleys are fixedly installed on the top of the lifting support, and the free end of the lifting rope winds around the fixed pulleys and is fixedly connected with a lifting hook used for lifting a tap switch. According to the utility model, the problems of difficult hoisting, difficult cleaning, difficult waste oil collection and the like of the tap switch in the conventional main transformer