US 12,258,951 B2
Transmission assembly of pump head of diaphragm booster pump, pump head of diaphragm booster pump, and diaphragm booster pump
Guoping Li, Shenzhen (CN); Kai Zhao, Shenzhen (CN); Chunhui Qiu, Shenzhen (CN); Qingyan Chen, Shenzhen (CN); Qizhi Hong, Shenzhen (CN); Heng Zhang, Shenzhen (CN); and Jianfang Zhang, Shenzhen (CN)
Assigned to SHENZHEN ANGEL DRINKING WATER INDUSTRIAL GROUP CORPORATION, Shenzhen (CN)
Appl. No. 17/917,120
Filed by SHENZHEN ANGEL DRINKING WATER INDUSTRIAL GROUP CORPORATION, Guangdong (CN)
PCT Filed Jul. 30, 2021, PCT No. PCT/CN2021/109721
§ 371(c)(1), (2) Date Oct. 5, 2022,
PCT Pub. No. WO2022/134593, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 202011521313.3 (CN), filed on Dec. 21, 2020; and application No. 202110626422.X (CN), filed on Jun. 4, 2021.
Prior Publication US 2023/0184237 A1, Jun. 15, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F04B 43/02 (2006.01); F04B 43/00 (2006.01); F04B 53/00 (2006.01)
CPC F04B 43/026 (2013.01) [F04B 43/0054 (2013.01); F04B 53/001 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A transmission assembly for a pump head of a diaphragm booster pump, comprising:
an eccentric assembly, comprising a motor shaft and eccentric wheels, the eccentric wheels comprising a first eccentric wheel, a second eccentric wheel and a third eccentric wheel in sequence, the first eccentric wheel and the third eccentric wheel being similarly eccentric, and the second eccentric wheel being eccentric in an opposite manner to the first eccentric wheel and the third eccentric wheel;
a balance wheel assembly, comprising balance wheels, the balance wheels comprising a first balance wheel, a second balance wheel and a third balance wheel in sequence, and the second balance wheel is bigger than the first balance wheel and the third balance wheel;
a bearing; and
bosses, fixed to the balance wheels, comprising first bosses and second bosses;
wherein movement of the first eccentric wheel and the second eccentric wheel or movement of the second eccentric wheel and the third eccentric wheel drives the balance wheels of the balance wheel assembly to move oppositely, the eccentric wheels are sleeved on the motor shaft and rotate along with the motor shaft;
the eccentric assembly drives the balance wheel assembly to swing eccentrically through the bearing;
each of the first bosses is fixed to the first balance wheel and the third balance wheel simultaneously, and each of the second bosses is fixed to the second balance wheel, so that to form a split structure.