Manual opening device for nuclear power station ground vehicle gripping apparatuses

The utility model provides a manual opening device for nuclear power station ground vehicle gripping apparatuses and relates to lifters. The manual opening device solves the problem that a manual opening device in a conventional technology occupies much space. The manual opening device comprises a gripper body, a spring, a lifting pin, a motor-driven push rod pedestal, a bolt, a cover plate, a sunk screw, a baffle plate, a locking pin, a rotating plate, and a steel wire rope. The spring and the lifting pin are installed in the cover plate; a square shaft on the upper portion of the locking pin is matched with a square hole in the rotating plate; the locking pin and the rotating plate are fixed by the baffle plate and the sunk screw; the cover plate is fixed to the motor-driven push rod pedestal through the bolt; a concave hole in the cover plate is coincided with a through hole in the motor-driven push rod pedestal; the gripper body is provided with long circle-shaped deep groove allowing the locking pin to s