Zipper structure

Abstract

The present invention discloses a zipper structure, relates to the field of bags, and is composed of at least one group of zipper. The zipper comprises pull pieces and a pull head; one end of the pull pieces is matched with a box lock for locking, characterized in that limiting structures matched with each other are arranged between the pull pieces of the zipper; and the pull pieces are limited through the matching of the limiting structures. In this way, when one end of the pull head of a group of zipper is closed and one end of the pull pieces is matched and locked with the box lock, the pull pieces of the group of zipper are closed with each other. Because the limiting structures matched with each other are also arranged between the pull pieces, a pair of pull pieces that are closed with each other are limited jointly by the box lock and the limiting structures under the limit of the limiting structures. In this way, one end of the pull head cannot be moved, thereby achieving the effect that one end of the pull head cannot be pulled after the zipper is matched and locked with the box lock.

What is claimed is: 
     
         1 . A zipper structure, composed of at least one group of zipper, wherein the zipper comprises pull pieces and a pull head ( 8 ); one end of the pull pieces is matched with a box lock ( 7 ) for locking, characterized in that limiting structures matched with each other are arranged between the pull pieces of the zipper; and the pull pieces are limited through the matching of the limiting structures. 
     
     
         2 . The zipper structure according to  claim 1 , characterized in that the pull pieces comprise a pull piece A( 1 ) and a pull piece B( 2 ); an extension section is arranged on one side of the pull piece A( 1 ); the extension section is downward provided with a convex structure ( 3 ); the upper surface of one side of the pull piece B( 2 ) is provided with a depression matched with the extension section; a hole ( 4 ) matched with the convex structure ( 3 ) is formed in the depression; and the pull piece A( 1 ) and the pull piece B( 2 ) are inserted into the hole ( 4 ) through the convex structure ( 3 ) to realize the matching and limiting. 
     
     
         3 . The zipper structure according to  claim 2 , characterized in that the length of the convex structure ( 3 ) is 0.5-1.5 CM. 
     
     
         4 . The zipper structure according to  claim 1 , characterized in that one end of the pull pieces is provided with a locking ring ( 5 ); and the locking ring ( 5 ) can be matched with the box lock ( 7 ) for locking.