Title:
DRAINAGE AND ANTI-SEEPAGE DEVICE AND METHOD FOR ASSEMBLED PREFABRICATED SANDWICH THERMAL-INSULATION EXTERNAL WALLBOARD
Document Type and Number:
WIPO Patent Application WO/2023/039745
Kind Code:
A1
Abstract:
Provided in the present invention is a drainage and anti-seepage device for an assembled prefabricated sandwich thermal-insulation external wallboard, the drainage and anti-seepage device comprising: a plurality of hoses made of a flexible waterproof material, wherein in the lengthwise direction of the hose, a plurality of drainage holes in communication with the inside and outside of the hose are formed in the hose; the hose is embedded in a joining seam between adjacent sandwich thermal-insulation external wallboards of a building, and is located between adjacent external wallboards; the drainage holes are attached to a side face of the external wallboard; water seepage in the external wallboard flows into the hoses through the drainage holes; and a drainage channel of the sandwich thermal-insulation external wallboard is formed by means of connecting the plurality of hoses. Further provided in the present invention is a waterproofing treatment method for an assembled prefabricated sandwich thermal-insulation external wallboard. The present invention can be configured for an anti-seepage treatment on an external wall of a fabricated high-rise building, thereby effectively preventing indoor decoration rework caused by water seepage in the external wall at a later stage; and the present invention has great market prospects.
Inventors:
HU SONGTAO (CN)
HE HONGBO (CN)
WANG JIE (CN)
XU JUN (CN)
GUO LE (CN)
HE HONGBO (CN)
WANG JIE (CN)
XU JUN (CN)
GUO LE (CN)
Application Number:
PCT/CN2021/118477
Publication Date:
March 23, 2023
Filing Date:
September 15, 2021
Export Citation:
Assignee:
CHINA RAILWAY SHANGHAI ENG BUREAU GROUP THIRD ENG CO LTD (CN)
SHANGHAI CIVIL ENG GROUP CO LTD OF CREC (CN)
SHANGHAI CIVIL ENG GROUP CO LTD OF CREC (CN)
International Classes:
E04B1/68; E04B2/00; E04F13/076
Foreign References:
| CN113356375A | 2021-09-07 | |||
| CN206279789U | 2017-06-27 | |||
| CN210369416U | 2020-04-21 | |||
| CN106401057A | 2017-02-15 | |||
| JP2007297893A | 2007-11-15 |
Attorney, Agent or Firm:
SUNSHINEIP INTELLECTUAL PROPERTY LAWFIRM (CN)
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