Hook pulley block rope falling prevention structure

The utility model relates to the field of chemical engineering, and particularly discloses a rope falling prevention structure of a lifting hook pulley block, which is provided with an upper rope falling prevention gland, a lower rope falling prevention gland, an upper fixing part, a lower fixing part, a fixing bracket and a rope falling prevention shell, the lower fixing parts are symmetrically arranged on the side wall of the upper end of the rope falling prevention shell; the lower rope falling prevention glands are symmetrically and vertically arranged in the center of the lower fixing part; the upper fixing part is arranged above the lower fixing part and is connected with the lower fixing part through a bolt; the upper rope falling prevention glands are symmetrically and vertically arranged in the center of the upper fixing part; the upper rope-falling-preventing glands and the lower rope-falling-preventing glands are arranged above the lower rope-falling-preventing glands in a one-to-one correspondence