US 12,449,078 B2
Fluid connector, and sealing structure
Shuliang Yang, Shenzhen Guangdong (CN)
Assigned to SHENZHEN ENVICOOL SMART CONNECTION TECHNOLOGY CO., LTD., Guangdong (CN)
Appl. No. 18/276,209
Filed by SHENZHEN ENVICOOL SMART CONNECTION TECHNOLOGY CO., LTD., Shenzhen Guangdong (CN)
PCT Filed Jan. 19, 2022, PCT No. PCT/CN2022/072639
§ 371(c)(1), (2) Date Aug. 7, 2023,
PCT Pub. No. WO2022/166580, PCT Pub. Date Aug. 11, 2022.
Claims priority of application No. 202120357233.2 (CN), filed on Feb. 7, 2021.
Prior Publication US 2024/0093819 A1, Mar. 21, 2024
Int. Cl. F16L 37/34 (2006.01); F16L 37/23 (2006.01); F16L 37/35 (2006.01); F16L 37/413 (2006.01)
CPC F16L 37/34 (2013.01) [F16L 37/23 (2013.01); F16L 37/35 (2013.01); F16L 37/413 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A sealing structure for a fluid connector, comprising:
a first sealing ring; and
a first sleeve, wherein
the first sleeve is arranged in the fluid connector and is hollow inside to form a first fluid channel, and the first sealing ring is arranged on an inner surface of the first sleeve for sealing and communication of the first fluid channel; and
the sealing structure further comprises:
a second sealing ring and a first valve sleeve, wherein the first valve sleeve is arranged in the fluid connector, is hollow inside to form a second fluid channel and is connected with the first sleeve, and the second sealing ring is arranged on an inner surface of the first valve sleeve for sealing and communication of the second fluid channel;
a third sealing ring and a valve rod, wherein the valve rod is hollow inside and is slidably arranged in the first valve sleeve; the valve rod is further provided with a fluid through-hole through which an outer periphery of the valve rod is in communication with the second fluid channel, and the second sealing ring and the third sealing ring are both arranged on the inner surface of the first valve sleeve, and are respectively located at two sides of the fluid through-hole in an axial direction of the valve rod; and
a plurality of fourth sealing rings and a second sleeve, wherein the first valve sleeve is slidably arranged in the second sleeve, and the plurality of fourth sealing rings are sealingly arranged between the second sleeve and the first valve sleeve; the plurality of fourth sealing rings are spaced apart in an axial direction of the second sleeve, to make a connection position between the first sleeve and the first valve sleeve be always located among the plurality of fourth sealing rings during a sliding process.