The ball head hanging ring is the connection between the iron tower and the insulator on the transmission line, and usually has no other functions. As a common power equipment, ball head hanging ring is widely used in transmission lines. The ball head hanging ring is generally connected between the iron tower and the insulator. When installing the ball head hanging ring, first install one end of the ball head hanging ring on the insulator, and then tighten the insulator in the direction of the iron frame. The end of the ball head hanging ring away from the insulator is installed on the iron frame. Since the length of the ball head hanging ring is not adjustable, when the insulator is tightened in the direction of the iron frame, multiple people are required to cooperate to pull the insulator to make the insulator reach the iron frame. The distance is less than the length of the ball head hanging ring, so that the ball head hanging ring can be installed on the iron frame. 1. Add a protective layer to avoid the direct impact of the metal ball head with the insulator 2. Reduce the possibility of the accident of the power line falling due to the breakage of the ball head hanging ring 3. The ball head is firmly bonded to the middle of the hanging ring. Layer of good toughness rubbe