US 12,390,049 B2
Grinding device and coffee machine equipped therewith
Weifeng Jiang, Suzhou (CN); and Meisheng Zhu, Suzhou (CN)
Assigned to SUZHOU INDUSTRIAL PARK KALERM ELECTRIC APPLIANCES CO., LTD., Suzhou (CN)
Filed by SUZHOU INDUSTRIAL PARK KALERM ELECTRIC APPLIANCES CO., LTD, Suzhou (CN)
Filed on Jun. 8, 2023, as Appl. No. 18/331,428.
Application 18/331,428 is a continuation of application No. PCT/CN2022/077368, filed on Feb. 23, 2022.
Claims priority of application No. 202110948041.3 (CN), filed on Aug. 18, 2021.
Prior Publication US 2023/0320531 A1, Oct. 12, 2023
Int. Cl. A47J 42/46 (2006.01); A47J 31/42 (2006.01); A47J 42/06 (2006.01); A47J 42/10 (2006.01); A47J 42/26 (2006.01); A47J 42/28 (2006.01); A47J 42/40 (2006.01); F16H 57/02 (2012.01)
CPC A47J 42/46 (2013.01) [A47J 31/42 (2013.01); A47J 42/06 (2013.01); A47J 42/10 (2013.01); A47J 42/40 (2013.01); F16H 57/02 (2013.01); F16H 2057/02034 (2013.01); F16H 2057/02073 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A grinding device, comprising:
a grinding housing, provided with a discharging port on a side thereof;
a first grinding element and a second grinding element, coaxially disposed in the grinding housing, wherein a grinding gap is formed between the first grinding element and the second grinding element, and the second grinding element rotates relative to the first grinding element to grind raw material to be ground in the grinding gap;
a pushing wheel, disposed below the second grinding element and connected to the second grinding element to drive the second grinding element to rotate, wherein rotation of the pushing wheel is capable of pushing ground raw material from the grinding gap to the discharging port; and
a drive assembly, disposed below the grinding housing, and connected to the pushing wheel in a torque-transmitting manner, wherein:
the pushing wheel comprises a torque connection portion, the grinding housing is provided with a through hole for the torque connection portion to pass through, the torque connection portion is radially supported to the grinding housing by a fixed support member, a rolling support member is provided between the pushing wheel and the grinding housing, and the rolling support member provides at least axial support for the pushing wheel.