US 12,215,702 B2
Rotation driving mechanism of air supply apparatus, air supply apparatus, and household appliance
Shiqiang Cui, Zhongshan (CN)
Assigned to GD MIDEA ENVIRONMENT APPLIANCES MFG CO., LTD., Zhongshan (CN); and MIDEA GROUP CO., LTD., Foshan (CN)
Filed by GD MIDEA ENVIRONMENT APPLIANCES MFG CO., LTD., Zhongshan (CN); and MIDEA GROUP CO., LTD., Foshan (CN)
Filed on Oct. 25, 2023, as Appl. No. 18/494,740.
Application 18/494,740 is a division of application No. 17/773,032, granted, now 11,835,052, previously published as PCT/CN2020/106633, filed on Aug. 3, 2020.
Claims priority of application No. 202010254409.1 (CN), filed on Apr. 2, 2020; application No. 202010254425.0 (CN), filed on Apr. 2, 2020; and application No. 202020462542.1 (CN), filed on Apr. 2, 2020.
Prior Publication US 2024/0052843 A1, Feb. 15, 2024
Int. Cl. F04D 25/10 (2006.01)
CPC F04D 25/105 (2013.01) 17 Claims
OG exemplary drawing
 
1. An air supply apparatus, comprising: a first fixed seat; a second fixed seat, the second fixed seat being connected to a handpiece of the air supply apparatus; and a rotation driving mechanism, the rotation driving mechanism having a fixed bracket and a rotary bracket, the fixed bracket being fixedly connected to the first fixed seat, and the rotary bracket being fixedly connected to the second fixed seat, wherein the rotary bracket is sleeved on the fixed bracket, and the rotation driving mechanism further has a driving assembly, and the driving assembly is adapted to drive the rotary bracket to rotate around a pitch axis, wherein the driving assembly comprises: a driving member and a first transmission member, wherein the first transmission member is connected to the driving member, and the rotary bracket is provided with a second transmission member drivingly engaging with the first transmission member; wherein the rotation driving mechanism further comprises: a support bearing, wherein the fixed bracket comprises a body portion, the body portion defines a mounting groove, an outer wall surface of a bottom wall of the mounting groove is provided with a mounting post, an inner ring of the support bearing is sleeved on the mounting post, and an outer ring of the support bearing is connected to the rotary bracket.