Adopting heavy punch to limited the position ,it has simple structure ,reliable movement which can prevent the phenomenon of the electric hoist reaches the limited position that caused by the chock block in gag lever post to side down the unreliable movement of the spark out limited position and so many factors

 

TO prevent the disorder of the guide rope device, also can prevent the phenomenon of the wire rope wind misorder that appeared in the process of going up and going down. It can make sure that under the circumstance lack of hanger hook acting force, the wire rope can pass through the hole in the rope device regularly, The guide rope nut use whole to bisection structure , the spring can adjust the degree of tightness automatically, it is endurable