US 12,419,410 B1
Cleaning brush main body and cleaning brush
Zuhui Ouyang, Shenzhen (CN); and Xingwen Leng, Shenzhen (CN)
Assigned to Shenzhen Huijing Technology Co., Ltd., Shenzhen (CN)
Filed by Shenzhen Huijing Technology Co., Ltd., Shenzhen (CN)
Filed on Oct. 16, 2024, as Appl. No. 18/916,700.
Claims priority of application No. 202421853540.X (CN), filed on Aug. 1, 2024.
Int. Cl. A46B 13/02 (2006.01); F16H 57/08 (2006.01)
CPC A46B 13/02 (2013.01) [F16H 57/082 (2013.01); A46B 2200/3033 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cleaning brush main body, comprising:
an outer shell;
a drive motor, installed in the outer shell, and comprising an output shaft;
an output connector, rotatably arranged relative to the outer shell;
a limit bracket;
a fixed bracket; and
at least one stage of planetary gear set, coupled between the output connector and the output shaft of the drive motor; and installed in the outer shell;
wherein the outer shell comprises a first shell and a second shell;
the first shell is provided with a first inner cavity, and the second shell is provided with a second inner cavity;
the first inner cavity is provided with a first opening, and the second inner cavity is provided with a second opening;
an opening edge of the first shell is docked with an opening edge of the second shell;
a first partition wall is provided on an inner surface of the first shell, and the first inner cavity of the first shell is divided into a first central area and a first peripheral area by the first partition wall;
a second partition wall is provided on an inner surface of the second shell, and the second inner cavity of the second shell is divided into a second central area and a second peripheral area by the second partition wall;
when the first shell is docked with the second shell, an end edge of the first partition wall abuts against an end edge of the second partition wall;
a second sealing element is sleeved on an outer periphery of the output connector;
the second sealing element abuts against an outer surface of the outer shell; and
an outer wall of the second sealing element is arranged in an expanded transition along a direction close to the outer surface of the outer shell;
the limit bracket is connected between the drive motor and the outer shell;
an axial positioning groove is provided on an inner surface of the outer shell, and the drive motor is surrounded by an inner space of the axial positioning groove in a circumferential direction;
an outer periphery of the limit bracket is accommodated in the axial positioning groove;
the fixed bracket is connected where the drive motor is between the fixed bracket and the limit bracket;
a lug part is formed on an outer periphery of the fixed bracket, and the lug part is configured to dock with the limit bracket; and
a fourth connecting column is provided on the limit bracket.