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Pub. No.:    WO/2017/157232    International Application No.:    PCT/CN2017/076141
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Fri Mar 10 00:59:59 CET 2017
IPC: A44B 19/34
A44B 19/30
Applicants: ZHENG, Yunting
Inventors: ZHENG, Yunting
A double-tape, single-layered insertion-proof zipper, comprising a zipper base (1), a chain (2), an upper steel tape measure (4), and a lower steel tape measure (5). The zipper base (1) is provided with a left groove (7) and a right groove (8). The chain (2) comprises a left chain (9), a right chain (10), a zipper head closing element (11), and a zipper tail closing element (12). The left chain (9) is provided with left teeth (13) and a left tape (14). The left teeth (13) are provided with left insertion-proof plates (15), left upper hooks (16), and left lower hooks (17). The right chain (10) is provided with right teeth (18) and a right tape (19). The right teeth (18) are provided with right insertion-proof plates (20), right upper hooks (21), and right lower hooks (22). The upper steel tape measure (4) is provided with an upper steel tape strip (23). The lower steel tape measure (5) is provided with a lower steel tape strip (25). The left insertion-proof plates (15) are arranged at corresponding positions between the left teeth (13). The right insertion-proof plates (20) are arranged at corresponding positions between the right teeth (18). When in use, the double-tape, single-layered insertion-proof zipper is arranged on a piece of luggage, the left insertion-proof plates (15) and the right insertion-proof plates (20) are utilized to close the corresponding gaps between the left teeth (13) and the right teeth (18), and the upper steel tape strip (23) and the lower steel tape strip (25) are utilized to close the chain (2), thus increasing the difficulty for a criminal to open the zipper by inserting a sharp tool.