Abstract: A zipper head assembly structure including a zipper head element and a puller is provided. The zipper head includes a zipper head body, a cap body disposed on the zipper head body, and a hook disposed inside the cap body. The cap body includes two curved surfaces opposite to each other. The hook includes a holding part, a hooking part, and a connecting element connecting the holding part and the hooking part. The connecting element includes a protruding block near the holding part. The puller includes a through opening hooked by the locking hook member. The width of the through opening is smaller than the distance between the protruding block and the adjacent curved surface.

Abstract: A zipper slider assembly structure and a connecting ring are provided. The zipper slider assembly structure includes a sliding assembly, a connecting ring, and a pull element. The sliding assembly includes a sliding element having a through hole, an elastic element disposed on the sliding element, and a movable fixing element movably disposed on the sliding element. The elastic element is elastically abutted against the movable fixing element. An end of the movable fixing element has a limiting part passing through the through hole. The connecting ring movably cooperates with the movable fixing element. The pull element movably cooperates with the connecting ring. The connecting ring has an outer arc surface contacting the sliding assembly and the pull element by point-contact to decrease a contact area between the connecting ring and the sliding assembly and between the connecting ring and the pull element.