Stable lifting device for sunken ship salvage

The utility model belongs to the technical field of sunken ship salvage. The utility model relates to a lifting device, in particular to a stable lifting device. Included is a platform comprising a base, a sliding groove is formed in the top surface of the base platform; a movable front pushing beam is arranged at one end of the upper surface of the base platform; a chain guide seat is fixedly mounted at the other end of the upper surface of the base platform; a chain guide hole is formed in the chain guide seat; a rear pushing beam is fixedly arranged between the front pushing beam and the chain guide seat, the rear pushing beam is also located on the surface of the base platform, the surface of one side of the front pushing beam and the surface of one side of the rear pushing beam are each connected with a front clamp holder and a rear clamp holder, the front clamp holders and the rear clamp holders are the same in structure, and chains are movably arranged in the front clamp holders, the rear clamp holders