Simple anti-unhooking lifting hook for crane

The utility model discloses a simple anti-unhooking lifting hook for a crane, which comprises a hook body and a pressing block, the hook body is provided with a limiting groove for preventing a lifting rope from sliding, the pressing block is connected with a driving mechanism for driving the pressing block to lift, and the pressing block is matched with the limiting groove. Through the arrangement of the limiting groove and the pressing block, when the lifting rope is hung on the hook body, the lifting rope is located in the limiting groove, meanwhile, the pressing block is connected with the driving mechanism used for driving the pressing block to ascend and descend, the driving mechanism drives the pressing block to move downwards, the lifting rope in the limiting groove is pressed by the pressing block, and the stability of connection between the lifting rope and the hook body is improved; the risk that the lifting rope is separated from the hook body is further avoided, the good unhooking prevention purp