Title:
FLUSHING AND OVERHAULING SYSTEM, FLUSHING METHOD AND OVERHAULING METHOD FOR DRAINAGE PIPELINE
Document Type and Number:
WIPO Patent Application WO/2020/228620
Kind Code:
A1
Abstract:
Disclosed are a flushing and overhauling system, a flushing method and an overhauling method for a drainage pipeline. Inspection wells and intercepting devices are arranged at intervals along a drainage pipeline. The inspection well is provided with a water inlet connected to an upstream drainage pipeline of the inspection well, and a water outlet connected to a downstream drainage pipeline of the inspection well. The intercepting device is mounted in the inspection well, and the intercepting device comprises a housing and a rubber sleeve, wherein the rubber sleeve is mounted in the housing, and an air cavity or a water cavity is formed between the rubber sleeve and the housing; the rubber sleeve is provided with a water flowing channel; and one end of the water flowing channel communicates with the upstream drainage pipeline by means of the water inlet, and the other end thereof communicates with the downstream drainage pipeline by means of the water outlet. When the intercepting device is filled with air or water, the intercepting device is closed, and the upstream drainage pipeline and the downstream drainage pipeline thereof are intercepted; and when the intercepting device deflates or drains water, the intercepting device is opened, and the upstream drainage pipeline and the downstream drainage pipeline thereof communicate with one another.
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Inventors:
ZHOU CHAO (CN)
LI XIHONG (CN)
LI XIHONG (CN)
Application Number:
PCT/CN2020/089300
Publication Date:
November 19, 2020
Filing Date:
May 09, 2020
Export Citation:
Assignee:
WUHAN SHENGYU DRAINAGE SYSTEM CO LTD (CN)
International Classes:
E03F7/02; E03F3/04; E03F9/00
Foreign References:
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| CN210713124U | 2020-06-09 | |||
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| CN203393836U | 2014-01-15 | |||
| CN207436244U | 2018-06-01 | |||
| CN109056965A | 2018-12-21 | |||
| CN109372078A | 2019-02-22 | |||
| CN109610595A | 2019-04-12 | |||
| CN109339193A | 2019-02-15 | |||
| DE202004002042U1 | 2004-05-06 | |||
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| JP2018053427A | 2018-04-05 |
Attorney, Agent or Firm:
BEIJING ZHONGDA DEQUAN IP AGENCY CO., LTD. (CN)
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