FACADE CLEANING DEVICE

WIPO Patent Application WO/2021/082625

A1

Provided is a facade cleaning device, which comprises a frame (100), a roller brush assembly (200), a walking wheel (300), a connecting member (510), and an elastic member (600), wherein the roller brush assembly (200) comprises a cleaning member (210) pivotally connected to the frame (100) at a first hinge point, the walking wheel (300) is pivotally connected to the frame (100) at a second hinge point, the connecting member (510) is pivotally connected to the frame (100) at a third hinge point, the third hinge point being located between the first hinge point and the second hinge point, the connecting member (510) is hinged to a mounting body (700) at a fourth hinge point, and the elastic member (600) is connected between the connecting member (510) and the mounting body (700). The facade cleaning device is provided with the connecting member (510) and the elastic member (600) so that the device will not hit the surface to be cleaned violently.

LIU ZHENGSHU (CN)
YU JISHU (CN)
WANG FENG (CN)
YIN DEHAI (CN)
AI FUQIANG (CN)
DAI ZHENDONG (CN)

PCT/CN2020/108758

May 06, 2021

August 13, 2020

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NANJING SINOTEST ROBOTICS CO LTD (CN)
NANJING LI HANG INDUSTRY INSTITUTE OF BIONIC TECH LIMITED COMPANY (CN)

E04G23/00

CN209494247U	2019-10-15
CN208137478U	2018-11-23
CN205476354U	2016-08-17
CN1438078A	2003-08-27
CN210976686U	2020-07-10
CN110141163A	2019-08-20
CN106166040A	2016-11-30
CN109528109A	2019-03-29
CN110367869A	2019-10-25
US20020032942A1	2002-03-21
NL9101803A	1993-05-17
BE1015800A3	2005-09-06

NANJING ZHONGLV INTELLECTUAL PROPERTY AGENCY FRIM (GENERAL PARTNERSHIP) (CN)

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