US 12,336,875 B2
Oral caring device
Junhui Li, Shenzhen (CN); and Fandi Meng, Shenzhen (CN)
Assigned to Shenzhen Soocas Technology, Co. LTD., Shenzhen (CN)
Filed by Shenzhen Soocas Technology Co., Ltd., Shenzhen (CN)
Filed on Mar. 3, 2023, as Appl. No. 18/177,999.
Claims priority of application No. 202210940250.8 (CN), filed on Aug. 5, 2022.
Prior Publication US 2023/0355366 A1, Nov. 9, 2023
Int. Cl. A61C 17/36 (2006.01); A61C 17/20 (2006.01); A61C 17/22 (2006.01)
CPC A61C 17/36 (2013.01) [A61C 17/20 (2013.01); A61C 17/222 (2013.01); A61C 17/225 (2013.01); A61C 2204/002 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An oral caring device, comprising a handle part and a caring head part, wherein the handle part is configured to be suitable for hand-holding, and the handle part comprises:
a sonic motor, comprising a motor body and a power output shaft, wherein the motor body has an output axis extending in a power output direction; the power output shaft is a columnar body extending along the output axis and penetrating through the motor body, the power output shaft is configured to cooperate with the motor body and transmit output power of the motor body, the power output shaft has an axial channel parallel to the output axis, and a first inlet and a first outlet which both communicate with the axial channel, and the first inlet is used for inflow of a fluid on a fluid incoming side; and
the caring head part comprises:
a flushing stem, defining a flow channel, and a second inlet and a second outlet which both communicate with the flow channel, wherein the flow channel is parallel to the output axis, the second inlet is formed at a first end of the flushing stem, the second outlet is formed at a second end of the flushing stem, the first end of the flushing stem is connected with the power output shaft, and the second inlet communicates with the first outlet;
a brush head structure, arranged at the second end of the flushing stem, wherein the brush head structure comprises a brush head body, a plurality of bristles arranged on the brush head body and a water outlet end arranged on the brush head body, the bristles extend in a direction that forms a preset included angle with the output axis, and the water outlet end communicates with the second outlet, so that the fluid flows through the axial channel and the flow channel in sequence and then is sprayed out from the water outlet end; and
the brush head structure further comprises a nozzle having an axial through hole, along an axis of the axial through hole, at least part of the axial through hole has an inner diameter that gradually decreases along a direction away from the flushing stem, so that the axial through hole has a conical inner surface; the caring head part further comprises a convex part arranged on the flushing stem, the convex part has an inner through hole, the convex part is in sealed fit with the axial through hole, the inner through hole communicates with the second outlet.