US 12,326,205 B2
Pipeline, pipeline connector, and liquid chromatography system
Pan Yang, Suzhou (CN); Jianjun Deng, Suzhou (CN); and Xuefeng Luo, Suzhou (CN)
Assigned to MAXI SCIENTIFIC INSTRUMENTS (SUZHOU) CO. LTD, Suzhou (CN)
Filed by Maxi Scientific Instruments (Suzhou) Co., Ltd., Suzhou (CN)
Filed on Nov. 30, 2023, as Appl. No. 18/525,727.
Application 18/525,727 is a continuation in part of application No. PCT/CN2022/107116, filed on Jul. 21, 2022.
Claims priority of application No. 202110859930.2 (CN), filed on Jul. 28, 2021.
Prior Publication US 2024/0110650 A1, Apr. 4, 2024
Int. Cl. F16L 19/06 (2006.01); G01N 30/02 (2006.01)
CPC F16L 19/061 (2013.01) [G01N 30/02 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A pipeline, comprising:
a pipeline body:
a sealing member; and
a sleeve;
wherein:
the pipeline body comprises a connection end; the connection end comprises a first section and a second section adjacent to the first section; and the first section comprises an end face perpendicular to an axis of the pipeline body;
the sealing member comprises a first annular part and a second annular part; the first annular part and the second annular part are disposed coaxially; the second annular part comprises a first surface oriented toward the first annular part; an axial projection of the first annular part falls within the first surface; the first surface comprises a first region and a second region; the first region is enclosed by the axial projection of the first annular part, and the second region surrounds the axial projection of the first annular part; the first annular part sleeves an outer wall of the first section; and the end face of the first section abuts against the first region;
the sleeve sleeves the second section and the first annular part; and the sleeve comprises an end face abutting against the second region; and
an outer diameter of the second annular part increases and then decreases along the axial direction.