Crane hook disassembling and assembling structure

The utility model relates to the technical field of lifting hook disassembly and assembly, in particular to a crane lifting hook disassembly and assembly structure which can be conveniently disassembled and assembled by adopting simple components including a first fixing piece, a second fixing piece, two movable pulley fixing rods, a fixing bolt cap, a lifting hook supporting screw ring, a lifting hook fixing limiting block and a lifting hook. Welding is not needed, convenience and rapidness are achieved, and the working efficiency of disassembling and assembling the crane hook is improved; secondly, through the arrangement of the lifting hook fixing limiting block, the problem that the lifting hook abuts against the lifting hook flange through a clamp connected with a spring to achieve unhooking prevention is effectively solved, the problem that hands are prone to being stuck in the disassembling or assembling process is solved, some potential safety hazards in the disassembling or assembling operation proce