The winch belongs to the category of lifting equipment, with flexible braking and simple operation. It is suitable for multiple fields such as bridges, buildings, mines, and docks, mainly used for lifting heavy objects and towing operations.

The safety protection device of the cantilever hoist includes a fixed connecting rod, a movable lever, a limit switch, and a U-shaped guide groove. The fixed connecting rod is vertically fixed on one side of the drum, the movable lever is hinged to the fixed connecting rod, and the U-shaped guide groove is fixed on the other side of the drum; The limit switch is fixed on the fixed connecting rod and is used for turning on and off the winch; The limit switch is equipped with a limit pull ring, which is fixedly connected to the movable lever; The movable lever passes through the steel wire rope on the hook. When the movable lever is placed on the U-shaped guide groove, the limit switch is in the energized state. When the movable lever leaves the U-shaped guide groove, the limit switch is in the de energized state. This device can effectively prevent the hook from colliding with the drum.

The safety protection device of the winch plays an important role in the safe use of the winch, which can reduce damage to the winch and also reduce the occurrence of accidents.