US 12,104,708 B2
Guide frame for four-way reversing valve
Fei Zhang, Shaoxing (CN); Qijie Xuan, Shaoxing (CN); and Junjie Sun, Shaoxing (CN)
Assigned to ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD., Shaoxing (CN)
Filed by ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD., Shaoxing (CN)
Filed on Mar. 20, 2023, as Appl. No. 18/123,923.
Application 18/123,923 is a continuation of application No. PCT/CN2021/111801, filed on Aug. 10, 2021.
Claims priority of application No. 202022129979.6 (CN), filed on Sep. 25, 2020; and application No. 202022141777.3 (CN), filed on Sep. 25, 2020.
Prior Publication US 2023/0228334 A1, Jul. 20, 2023
Int. Cl. F16K 3/316 (2006.01); F16K 3/26 (2006.01); F16K 11/065 (2006.01); F16K 11/07 (2006.01); F16K 27/10 (2006.01); F16K 51/00 (2006.01); F25B 41/20 (2021.01)
CPC F16K 3/316 (2013.01) [F16K 3/262 (2013.01); F16K 11/0655 (2013.01); F16K 11/0708 (2013.01); F16K 27/105 (2013.01); F16K 51/00 (2013.01); F25B 41/20 (2021.01); Y10T 137/86839 (2015.04)] 18 Claims
OG exemplary drawing
 
1. A guide frame for a four-way reversing valve, comprising a plate-shaped frame body configured for disposing a sliding block assembly of the four-way reversing valve, both ends of the frame body are provided with a connecting portion configured for connecting a piston assembly of the four-way reversing valve, respectively, the connecting portion comprises a first bending member and a second bending member, and directions of bending of the first bending member and of the second bending member are opposite and located in a plane perpendicular to the frame body,
wherein the connecting portion is provided with a reinforcing member comprising a first reinforcing plate and a second reinforcing plate disposed separately,
the first reinforcing plate is connected to a bending part of an inner side of the first bending member by welding, and at least three welding spots are defined between the first reinforcing plate and the first bending member, and the second reinforcing plate is connected to a bending part of an inner side of the second bending member by welding, and at least three welding spots are defined between the second reinforcing plate and the second bending member, and,
a plurality of welding locating holes are defined between the first reinforcing plate and the first bending member and the second reinforcing plate and the second bending member, the first reinforcing plate is connected to the first bending member by welding at the plurality of welding locating holes, and the second reinforcing plate is connected to the second bending member by welding at the plurality of welding locating holes.