Knife switch sweeping tool used in electrification state

The utility model discloses a sweeping tool used for a 66-kilovolt knife switch contact in an electrification state. The sweeping tool comprises an electric motor, an insulated supporting rod and chargeable lithium batteries and is characterized in that the two ends of a hollow connection pipe are connected with an output shaft of the electric motor and a connection rod of a polisher in a sleeved mode, the outer surface of the other end of the electric motor is wrapped with a fixing sleeve, the side face of the fixing sleeve is locked and fixed by at least two sets of screws and nuts, the insulated supporting rod is inserted into the other end of the fixing sleeve, the insulated supporting rod and the fixing sleeve are fixed through a locking structure, and the matched position of the inside of the end, close to the electric motor, of the insulated supporting rod is provided with power supplies. The difficult problems that a high-voltage isolation switch contact heats and equipment needs to be polished in a p