Prefabricated slab hoisting and overturning device

The utility model belongs to the technical field of prefabricated slab overturning, and particularly relates to a prefabricated slab hoisting and overturning device which comprises a supporting frame, and an overturning structure for driving a prefabricated slab to rotate reversely is installed on the inner side of the supporting frame. The overturning structure comprises two sets of mounting frames, the two sets of mounting frames are installed on the two sides of the inner wall of the supporting frame respectively, and second supporting frames are fixedly installed on the inner walls of the ends, away from the supporting frame, of the two sets of mounting frames. A first threaded sleeve and a second threaded sleeve are rotated towards the shell side of a reverse rotating frame to abut against the inner wall and the outer wall, a telescopic rod is controlled to drive a mounting frame and the fixed prefabricated plate to ascend, after ascending, a motor is controlled to drive a rotating shaft to rotate throug