Folding protective top cover capable of avoiding hoisting space

The utility model discloses a foldable protective top cover capable of avoiding a hoisting space, which is characterized in that the protective top cover comprises a first protective cover plate and a second protective cover plate which are hinged with each other, the outer side of the first protective cover plate is connected with an equipment frame through a hinge, the outer side of the second protective cover plate is provided with a connecting seat, and the connecting seat is connected with the first protective cover plate through a hinge. A rotating shaft is rotatably supported on the connecting base, a limiting column perpendicular to the rotating shaft is connected to the rotating shaft, a connecting frame is arranged on the equipment frame and located at the end of the first protective cover plate, and a first cantilever capable of swinging in a reciprocating mode in the horizontal direction is rotatably supported on the connecting frame. The end of the first cantilever is rotationally connected with