Deviation preventing device of wire belt hoister

The utility model discloses a deviation preventing device of a wire belt hoister. The deviation preventing device of the wire belt hoister comprises a hoister shell, a flange frame, a deviation preventing frame, a blocking roller, a core winding shaft and a supporting plate. The deviation preventing device is characterized in that an opening corresponding to the flange frame in size is formed in the hoister shell, the flange frame is welded to the outer surface of the hoister shell, the deviation preventing frame is fixed to the flange frame through bolts, the supporting plate is welded to the deviation preventing frame, and the blocking roller is fixed to the supporting plate through the core winding shaft. The deviation preventing device has the advantages of being improved in original working space and an original mechanism, and being small in occupied space, simple in structure, convenient to operate and capable of effectively solving the problem of wire belt deviation.