Mechanical hand for garbage can

The invention discloses a mechanical hand for a garbage can, and belongs to mechanical hands. The mechanical hand for the garbage can aims at achieving the technical effects that the garbage can is rapidly cleaned, the labor intensity of workers is reduced, and working efficiency is improved. According to the technical scheme, the mechanical hand structurally comprises a motor fixing plate, a motor and a lead screw, the motor is arranged on the upper side face of the motor fixing plate, one end of the lead screw is installed on the motor through a bearing pedestal, the other end of the lead screw is provided with a moving block, the two sides of the moving block are each provided with a gear transmission device, the lower side of each gear transmission device is provided with a mechanical hand body, each gear transmission device comprises a sliding rail fixing plate, a sliding rail, a rack, a dual gear and a gear shaft, the sliding rail fixing plates are perpendicular to the motor fixing plate, the sliding ra