US 11,795,932 B2
Double-roller hose pressing apparatus for peristaltic pump
Zhen Liu, Hunan (CN); Bo Yang, Hunan (CN); Haijun Tao, Hunan (CN); and Weiquan Cheng, Hunan (CN)
Assigned to HUNAN ZENITHSUN TECHNOLOGY CO., LTD, Hunan (CN)
Appl. No. 17/281,261
Filed by HUNAN ZENITHSUN TECHNOLOGY CO., LTD, Hunan (CN)
PCT Filed Jul. 11, 2019, PCT No. PCT/CN2019/095577
§ 371(c)(1), (2) Date Mar. 30, 2021,
PCT Pub. No. WO2020/063032, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 201821612496.8 (CN), filed on Sep. 30, 2018.
Prior Publication US 2022/0003226 A1, Jan. 6, 2022
Int. Cl. F04B 43/12 (2006.01); F04B 53/00 (2006.01)
CPC F04B 43/1276 (2013.01) [F04B 43/1215 (2013.01); F04B 53/006 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A double-roller hose pressing apparatus for a peristaltic pump, —comprising two flexible-rolling rollers respectively disposed at two sides of a working hose in the peristaltic pump, wherein the two rollers are configured for pressing a working hose, and the two rollers are arranged in relative positions to clamp the working hose during operation,
wherein the two rollers configured for pressing the working hose are both movable hose-pressing roller assemblies, and the two movable hose-pressing roller assemblies clamp the working hose by synchronized swinging motion towards each other,
wherein each of the movable hose-pressing roller assemblies comprises a roller component, an eccentric crankshaft, a synchronizing gear, a driven spiral gear and a driving spiral gear; each roller component is arranged at one end of its respective eccentric crankshaft each driven spiral gear and synchronizing gear are arranged on their respective eccentric crankshaft each eccentric crankshaft swings by coordination between its driving spiral gear and driven spiral gear; and the roller components of the two movable hose-pressing roller assemblies rotate synchronously by the synchronizing gears.