Anti-winding device of winch

The utility model relates to the field of winches, in particular to a winch anti-winding device which comprises a winch drum, a bearing frame and a movable frame, the bearing frame is fixedly arrangedbeside the winch drum in the axis direction of the winch drum, the movable frame is arranged on the bearing frame, and the movable frame is connected with an upper frame body and a lower frame body of the bearing frame in a sliding mode. A first limiting piece and a second limiting piece are arranged at the upper left corner and the lower right corner of the movable frame respectively, and the steel wire rope penetrates through the first limiting piece or the second limiting piece to be connected with a winding drum of the winch. Through the arrangement of the bearing frame, the moving frameand the limiting piece, a certain distance is kept between the two steel wire ropes all the time, and the situation that the skipping ropes are mutually pressed to be dead, and consequently winch accidents are caused is preven