Title:
TEMPORARY LEAKAGE PLUGGING DEVICE AND METHOD APPLIED TO LEAKAGE RESCUE OF FOUNDATION PIT ENGINEERING ENCLOSURE STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2021/023244
Kind Code:
A1
Abstract:
Provided in the present invention are a temporary leakage plugging device and method applied to the leakage rescue of a foundation pit engineering enclosure structure. The structure comprises a hollow adjusting screw, a fixed support, a bowl-shaped leakage plugging cover, a bowl-shaped sealing rubber lining, and several rotating outriggers, an adjusting handle, and a valve. The rotating outriggers capable of rotating relative to the fixed support and connecting plates are used, and thus the rotating outriggers may achieve double-section bidirectional angle adjustment, which is may be widely adapted to uneven underground enclosure structure surfaces, and implement fixation under different leakage situations. Then, the adjusting handle is turned to allow the hollow adjusting screw to rotate relative to the fixed support, so that the bowl-shaped leakage plugging cover is tightly squeezed on a leakage point. Since a spiral structure is able to precisely adjust the stroke of the hollow adjusting screw and has the ability to resist large water pressure, therefore for a deep leakage position, when water pressure at a leakage site is huge and the water flow is rapid, the rapid solidification of grouting material may also be guaranteed to ensure the leakage plugging effect and simple operations.
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Inventors:
LONG LIBO (CN)
LUO HENG (CN)
SHI CHEN (CN)
LUO HENG (CN)
SHI CHEN (CN)
Application Number:
PCT/CN2020/107262
Publication Date:
February 11, 2021
Filing Date:
August 06, 2020
Export Citation:
Assignee:
SHANGHAI CONSTRUCTION ENG SECOND CONSTRUCTION GROUP CO LTD (CN)
International Classes:
E02D17/04; E02D19/12
Domestic Patent References:
| WO2010134731A2 | 2010-11-25 |
Foreign References:
| CN110409460A | 2019-11-05 | |||
| CN207582470U | 2018-07-06 | |||
| CN206599788U | 2017-10-31 | |||
| CN207419503U | 2018-05-29 | |||
| CN104005566A | 2014-08-27 | |||
| JP2009114769A | 2009-05-28 |
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