US 12,253,072 B2
Pump head of diaphragm booster pump, diaphragm booster pump, water treatment device and method of operating pump head
Guoping Li, Shenzhen (CN); Kai Zhao, Shenzhen (CN); Qingyan Chen, Shenzhen (CN); Chunhui Qiu, 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. 17/917,125
Filed by SHENZHEN ANGEL DRINKING WATER INDUSTRIAL GROUP CORPORATION, Guangdong (CN)
PCT Filed Jul. 30, 2021, PCT No. PCT/CN2021/109725
§ 371(c)(1), (2) Date Oct. 5, 2022,
PCT Pub. No. WO2022/134594, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 202011521313.3 (CN), filed on Dec. 21, 2020; and application No. 202110624743.6 (CN), filed on Jun. 4, 2021.
Prior Publication US 2023/0151804 A1, May 18, 2023
Int. Cl. F04B 43/02 (2006.01); F04B 9/04 (2006.01); F04B 43/00 (2006.01); F04B 43/04 (2006.01); F04B 53/00 (2006.01)
CPC F04B 43/026 (2013.01) [F04B 9/045 (2013.01); F04B 43/0054 (2013.01); F04B 43/04 (2013.01); F04B 53/001 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A pump head of a diaphragm booster pump, comprising:
a diaphragm,
a piston chamber comprising booster chambers radially expanding or compressing by movement of the diaphragm, the booster chambers being arranged on an inner wall of the piston chamber, and the diaphragm enclosing the piston chamber to form the booster chambers;
a balance wheel assembly comprising balance wheels; and
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 having the same eccentricity, and the second eccentric wheel being eccentric in an opposite manner to the first eccentric wheel and the third eccentric wheel;
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, and wherein the eccentric wheels are sleeved on the motor shaft and rotate along with the motor shaft;
wherein the balance wheels comprise 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; and wherein the eccentric assembly drives the balance wheel assembly to swing eccentrically through a bearing;
wherein outer walls of the balance wheels have bosses, the diaphragm is connected to the bosses and is driven by the bosses to swing in the radial direction, thus realizing the expansion or compression of the booster chambers.