Prefabricated roadbed slab hoisting tool, connecting device for hoisting and hoisting roadbed system

The utility model provides a prefabricated track bed slab hoisting tool, a connecting device for hoisting and a hoisting track bed system, the connecting device for hoisting the prefabricated track bed slab comprises at least four hoisting tools, each hoisting tool comprises a hoisting limiting piece, a hoisting supporting piece, a connecting column, a hoisting ring and a bearing piece, the hoisting ring is arranged above the connecting column, and the bearing piece is arranged above the hoisting limiting piece. The hoisting limiting piece and the hoisting supporting piece are installed below the connecting column through the bearing piece, the shape of the hoisting limiting piece and the shape of the hoisting supporting piece are matched with the structure of an outer sleeve of the vibration isolator, and the hoisting limiting piece and the hoisting supporting piece can be matched with an in-sleeve protruding part on the inner wall of the outer sleeve to form a supporting structure. Therefore, by adopting th