Assembly lifting appliance of plugging device for offshore wind power large-diameter single pile floating transportation

The invention discloses an assembly lifting appliance of a plugging device for offshore wind power large-diameter single pile floating transportation. A lifting shaft is arranged in the center of theplugging device, a kidney-shaped pin shaft installing hole is formed in the lifting shaft in the circumferential direction of the outer wall face; a sliding bottom plate is installed on the outer endface of the plugging device, a transverse kidney-shaped sliding bottom hole is formed in the sliding bottom plate; the assembly lifting appliance comprises a lifting appliance frame, a main lifting plate, a plugging device shaft sleeve and a sliding plate; when the plugging device is hoisted, the plugging device shaft sleeve is arranged on a lifting shaft of the plugging device in a sleeving mode,a pin shaft inserting hole in the plugging device shaft sleeve is aligned with the pin shaft installing hole in the lifting shaft, a pin shaft is inserted into the pin shaft inserting hole and the pin shaft installing hole, th