Eccentric lifting appliance for lifting upper structure of aluminum electrolysis cell

The eccentric lifting appliance for lifting the upper structure of the aluminum electrolysis cell comprises a lifting appliance body, a lifting hole is formed in the top of the lifting appliance body, horizontal friction plates are installed on the positions, on the two sides of the lifting hole, of the lifting appliance body through installation mechanisms, and vertical abutting plates are symmetrically installed on the two sides of the lifting hole through driving mechanisms. The driving mechanism is arranged to drive the two abutting plates to oppositely move in the length direction of the lifting appliance body, so that the rubber plates on the two abutting plates are both attached to the surface of the lifting hook, and the situation that the lifting appliance body slips and rotates on the surface of the lifting hook in the subsequent lifting process is avoided. Moreover, the friction plate on the lifting appliance body is in contact with the surface of the lifting equipment, and the friction groove in t