US 12,013,053 B2
Transmission part, valve drive assembly and valve
Chun Kuen Sze, Hong Kong (CN)
Appl. No. 17/297,970
Filed by Chun Kuen Sze, Hong Kong (CN)
PCT Filed Dec. 28, 2020, PCT No. PCT/CN2020/140121
§ 371(c)(1), (2) Date May 27, 2021,
PCT Pub. No. WO2022/126732, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 202011501918.6 (CN), filed on Dec. 18, 2020.
Prior Publication US 2022/0403950 A1, Dec. 22, 2022
Int. Cl. F16K 31/53 (2006.01); F16D 3/205 (2006.01); F16K 31/05 (2006.01)
CPC F16K 31/53 (2013.01) [F16D 3/205 (2013.01); F16K 31/055 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A valve drive assembly, configured to drive a rotating shaft of a valve to rotate, wherein the valve drive assembly comprises:
a first transmission part, wherein the first transmission part is configured to be detachably connected with the rotating shaft of the valve;
a second transmission part, wherein the second transmission part is in transmission connection with the first transmission part, and is movable in an axial direction of the rotating shaft relative to the first transmission part; and
a driving part, wherein the driving part is in transmission connection with the second transmission part, and the driving part is configured to drive the second transmission part to rotate, so as to drive the first transmission part and the rotating shaft of the valve to rotate;
wherein the second transmission part has a second hole,
wherein the second transmission part is configured to be sheathed on an outer side of the first transmission part using the second hole, one of the outer side of the first transmission part and an inner side of the second transmission part is provided with a guide structure, the other is provided with a guide groove,
wherein an extending direction of the guide groove is consistent with an extending direction of an axis of the rotating shaft, and the guide structure is in sliding fit with the guide groove;
wherein the first transmission part comprises a body and the guide structure protruding on an outer side of the body, the guide structure comprises a mounting column protruding on the outer side of the body and a roller arranged on the mounting column, and the guide structure is configured to extend into the guide groove so that the roller is capable of rolling on an inner wall of the guide groove.