US 12,251,867 B2
Liner structure and blow-molding manufacturing method forliner structure
Xiaogong Chen, Shanghai (CN); Lei Fan, Shanghai (CN); Tong Liu, Shanghai (CN); and Mingche Zhou, Shanghai (CN)
Assigned to CANATURE HEALTH TECHNOLOGY GROUP CO., LTD., (CN)
Appl. No. 17/628,751
Filed by CANATURE HEALTH TECHNOLOGY GROUP CO., LTD., Shanghai (CN)
PCT Filed Sep. 26, 2021, PCT No. PCT/CN2021/120562
§ 371(c)(1), (2) Date Jan. 20, 2022,
PCT Pub. No. WO2022/170767, PCT Pub. Date Aug. 18, 2022.
Claims priority of application No. 202110185005.6 (CN), filed on Feb. 10, 2021.
Prior Publication US 2023/0158729 A1, May 25, 2023
Int. Cl. B29C 49/20 (2006.01); B29K 23/00 (2006.01); F16J 12/00 (2006.01)
CPC B29C 49/20 (2013.01) [F16J 12/00 (2013.01); B29C 2049/2008 (2013.01); B29C 2049/2026 (2013.01); B29K 2023/18 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A liner structure, comprising a liner main body and an insert located inside an opening of the liner main body, wherein the liner main body has a portion which is at the opening and covers a top surface of the insert, so that the insert is not exposed on an outside of the liner main body, wherein the top surface of the insert faces an opening direction of the opening of the liner main body, wherein the liner main body is made of a polybutylene material;
wherein the insert and the opening of the liner main body are nested with each other;
wherein the insert is provided with a via, and an extension protruding from the portion of the liner main body is disposed at the opening of the liner main body and extends through the via;
wherein a diameter of a front end of the extension is larger than a diameter of the via, wherein the front end of the extension faces away from the portion of the liner main body and extends beyond the via.