SCRAPER BLADE, SLURRY SCRAPING ASSEMBLY, HOLE PLUGGING DEVICE AND HOLE PLUGGING APPARATUS

WIPO Patent Application WO/2022/057617

A1

A scraper blade, a slurry scraping assembly, a hole plugging device and a hole plugging apparatus. The scraper blade comprises a connecting plate and a scraper blade body, wherein the scraper blade body is obliquely mounted on the connecting plate; an upper end of the scraper blade body is arranged away from the connecting plate relative to a lower end of the scraper blade body; and the scraper blade body is provided with a discharge groove. The scraper blade scrapes and plasters a construction wall surface from bottom to top, and after slurry on the construction wall surface is scraped off by means of the scraper blade body, the slurry can flow into the discharge groove along the scraper blade body under the action of its own gravity, and is then discharged from the discharge groove, so as to avoid affecting the scraping effect due to accumulation of the slurry on the scraper blade, and avoid affecting the attractiveness of the wall surface due to bonding of excess slurry to the construction wall surface when the scraper blade leaves the construction wall surface. The slurry scraping assembly comprises the scraper blade, the hole plugging device comprises the slurry scraping assembly, and the hole plugging apparatus comprises the hole plugging device.

XIAO TAO (CN)
CHANG XIANWEI (CN)
DENG XIAOMEI (CN)
XIAO CHANG (CN)
LI JUNTAO (CN)
LIN SHAN (CN)

PCT/CN2021/115663

March 24, 2022

August 31, 2021

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GUANGDONG BRIGHT DREAM ROBOTICS CO LTD (CN)

E04B1/66; E04F21/16

CN112160429A	2021-01-01
CN210316400U	2020-04-14
CN111648619A	2020-09-11
CN211286764U	2020-08-18
CN110805302A	2020-02-18
CN208415980U	2019-01-22
KR20120015400A	2012-02-21
DE10347246A1	2005-05-25

BEYOND ATTORNEYS AT LAW (CN)

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