Title:
SPIRALLY WOUND COMPOSITE UNDERGROUND PIPELINE
Document Type and Number:
WIPO Patent Application WO/2022/193457
Kind Code:
A1
Abstract:
A spirally wound composite underground pipeline (10), comprising an inner layer pipeline (100), a reinforcing layer (200), and a pouring layer. The inner layer pipeline (100) comprises a base pipe (110), a sealing component (130), and at least one group of clamping structures (120); the base pipe (110) extends along a spiral line in a spiral winding mode; the sealing component (130) is provided between two adjacent side surfaces of the base pipe (110) in a spiral direction along the spiral line; each clamping structure (120) comprises a first matching portion (121) and a second matching portion (122) that are arranged at the two adjacent sides of the base pipe (110) in the spiral direction along the spiral line and are locked to each other; the reinforcing layer (200) comprises at least one supporting belt; the supporting belt at least partially covers the clamping structure (120); the pouring layer continuously extends along an axis; and the pouring layer is compounded on the outer surface of the reinforcing layer (200) and the outer surface of the inner layer pipeline (100) exposing the reinforcing layer (200).
Inventors:
SHA YUEHUA (CN)
GUAN ENZHENG (CN)
CHEN JUNCHEN (CN)
WANG JINSHAN (CN)
QIN QINGWU (CN)
GUAN ENZHENG (CN)
CHEN JUNCHEN (CN)
WANG JINSHAN (CN)
QIN QINGWU (CN)
Application Number:
PCT/CN2021/100576
Publication Date:
September 22, 2022
Filing Date:
June 17, 2021
Export Citation:
Assignee:
5ELEM HI TECH CORP (CN)
International Classes:
F16L9/16; F16L9/14
Domestic Patent References:
| WO2003062697A1 | 2003-07-31 |
Foreign References:
| CN112944058A | 2021-06-11 | |||
| CN112879682A | 2021-06-01 | |||
| CN212080513U | 2020-12-04 | |||
| CN203671056U | 2014-06-25 | |||
| CN101122354A | 2008-02-13 | |||
| CN107543005A | 2018-01-05 |
Attorney, Agent or Firm:
SUZHOU JIABO INTELLECTUAL PROPERTY (CN)
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