Safety lifting hook for cable reel

The invention discloses a safety lifting hook for a cable reel. The safety lifting hook comprises a rigid lifting hook body; a lifting hole and a hanging hole below the lifting hole are formed in the front surface of the rigid lifting hook body in a penetrating mode; the hanging hole comprises a transverse hole and a vertical hole, the top of the vertical hole communicates with one end of the bottom of the transverse hole, the bottom of the vertical hole communicates with the bottom end surface of the rigid lifting hook body, and the vertical hole and the rigid lifting hook body form a reverse 7-shaped hanging hole. The special lifting hook matched with the thickness and the protruding length of the process disc edge is manufactured by utilizing the process disc edge structure, so that the rotary mounting structure and the process disc edge realize self-locking under the dead weight of the process disc by utilizing rotary mounting and dismounting of a mechanical structure when the process disc edge is lifted