Protective device for fan blade

The utility model discloses a protection device for a fan blade, belongs to the technical field of blade protection devices, and solves the technical problems that in the prior art, a nylon belt is directly contacted with the bottom surface and the edge of the blade, and when a hoisting machine hoists the blade through a hoisting structure and then unloads the blade, the nylon belt and the blade form large friction, and the blade cannot be damaged. And a blade protection layer is easy to wear, so that the subsequent maintenance cost is high. The lifting device comprises an I-shaped piece, the I-shaped piece comprises a first cross rod, a second cross rod, a longitudinal rod perpendicular to the first cross rod and the second cross rod, a first nylon belt and a second nylon belt which are arranged on the first cross rod and the second cross rod respectively and matched with a blade, and lifting ropes which are arranged at the two ends of the longitudinal rod and matched with a lifting machine. The U-shaped pro