Cleaning device for elevator maintenance

The cleaning device for elevator maintenance comprises an elevator car, a protection groove is formed in the bottom of the inner wall of the elevator car, a dustproof pad is movably connected into theprotection groove, a positioning plate is fixedly connected to the top of the dustproof pad, the top of the positioning plate extends into the elevator car, and the top of the positioning plate is fixedly connected with the bottom of the elevator car. Push plates are arranged on the two sides of the interior of the elevator car correspondingly, push rods are fixedly connected to the outer sides of the push plates, and the outer sides of the push rods penetrate through the elevator car and extend into the inner wall of the elevator car to be fixedly connected with movable plates. Through cooperation of the elevator car, the protection groove, the dustproof pad, the positioning plate, the push plate, the push rod, the movable plate, the sliding sleeve, the shaking plate, the lifting plate and the lifting block, the