US 12,220,101 B2
Scrubber brush assembly and vacuum cleaner having same
Xia Xu, Suzhou (CN); Tom Ford, Suzhou (CN); and Xuebing Yin, Suzhou (CN)
Assigned to JIANGSU MIDEA CLEANING APPLIANCES CO., LTD., Suzhou (CN); and MIDEA GROUP CO., LTD., Foshan (CN)
Appl. No. 17/790,738
Filed by JIANGSU MIDEA CLEANING APPLIANCES CO., LTD., Suzhou (CN); and MIDEA GROUP CO., LTD., Foshan (CN)
PCT Filed Jan. 4, 2021, PCT No. PCT/CN2021/070086
§ 371(c)(1), (2) Date Jul. 4, 2022,
PCT Pub. No. WO2021/139616, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 202020028296.9 (CN), filed on Jan. 7, 2020; application No. 202020028392.3 (CN), filed on Jan. 7, 2020; application No. 202020028445.1 (CN), filed on Jan. 7, 2020; application No. 202020028762.3 (CN), filed on Jan. 7, 2020; and application No. 202020028954.4 (CN), filed on Jan. 7, 2020.
Prior Publication US 2023/0051802 A1, Feb. 16, 2023
Int. Cl. A47L 9/04 (2006.01)
CPC A47L 9/0477 (2013.01) [A47L 9/0411 (2013.01); A47L 9/0433 (2013.01); A47L 9/0444 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A scrubber brush assembly, comprising:
a roller brush body rotatable around a first rotation center line extending in a horizontal direction and having a bristle provided thereon, the bristle extending in a radial direction of the roller brush body;
a scraping sleeve rotatable around a second rotation center line and sleeved over the roller brush body, the second rotation center line extending in the horizontal direction and being noncoincident with the first rotation center line, wherein the scraping sleeve has a scraping sleeve hole defined thereon and penetrating the scraping sleeve in a wall thickness direction of the scraping sleeve, an inside of the scraping sleeve hole being opposite to an outside of the bristle, and wherein the bristle is adapted to be extended out of or retracted into the scraping sleeve hole in the wall thickness direction of the scraping sleeve; and
a housing having an accommodation space defined therein, an inner surface of the housing corresponding to the accommodation space being at least partially formed as a cylindrical surface extending in the horizontal direction, wherein:
the roller brush body and the scraping sleeve are disposed in the housing;
the first rotation center line of the roller brush body is eccentrically arranged with respect to a center axis of a circumferential wall of the cylindrical surface of the accommodation space;
the second rotation center line of the scraping sleeve is coincident with the center axis of the circumferential wall of the cylindrical surface of the accommodation space; and
the bristle is adapted to be extended out of or retracted into the scraping sleeve hole in the wall thickness direction of the scraping sleeve when the roller brush body and the scraping sleeve rotate.