US 12,281,711 B2
Sealing structure of valve body, valve and CFLVV valve
Xiaotong Zhu, Pinghu (CN)
Assigned to YINGZHI AIYI INTELLIGENT AUTOMOTIVE TECHNOLOGIES (JIAXING) CO., LTD., Zhejiang (CN); and SHANGHAI JTR AUTOMOTIVE COMPONENT CO., LTD., Shanghai (CN)
Appl. No. 18/038,909
Filed by JTR AY AUTOMOTIVE TECHNOLOGIES (JIAXING) CO., LTD., Zhejiang (CN); and SHANGHAI JTR AUTOMOTIVE COMPONENT CO., LTD., Shanghai (CN)
PCT Filed Jan. 25, 2021, PCT No. PCT/CN2021/073574
§ 371(c)(1), (2) Date May 25, 2023,
PCT Pub. No. WO2022/110533, PCT Pub. Date Jun. 2, 2022.
Claims priority of application No. 202011346623.6 (CN), filed on Nov. 26, 2020; and application No. 202022784534.1 (CN), filed on Nov. 26, 2020.
Prior Publication US 2024/0019030 A1, Jan. 18, 2024
Int. Cl. F16K 1/46 (2006.01); F16K 11/22 (2006.01)
CPC F16K 1/46 (2013.01) [F16K 11/22 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A sealing structure of a valve body, wherein the sealing structure is provided in a valve body of a valve; a small discharge port and a large discharge port wound around the small discharge port are provided on a top surface of an inner cavity of the valve body; the small discharge port corresponds to a first exhaust passage, and the large discharge port corresponds to a second exhaust passage; a small valve core corresponds to the small discharge port, and a large valve core corresponds to the large discharge port; the sealing structure comprises:
a sealing part provided in the inner cavity of the valve body and located between the large valve core and the top surface of the inner cavity of the valve body, for cooperating with the large valve core to seal the large discharge port and close the second exhaust passage, forming a first communication passage communicating the inner cavity of the valve body with the small discharge port, wherein a bottom end of the first communication passage corresponds to the small valve core;
when it is required to close the large discharge port, the large valve core slides to a closed position and cooperates with the sealing part to seal the large discharge port, and closes the second exhaust passage to form the first communication passage; when it is required to close the small discharge port, the small valve core slides to a closed position and cooperates with the bottom end of the first communication passage to seal the small discharge port and close the first exhaust passage;
wherein the sealing part includes a bearing member and a sealing assembly;
wherein the bearing member is movably arranged in the inner cavity of the valve body or is fixedly connected to the large valve core; and the bearing member is provided with a through hole matched with the small discharge port;
wherein the sealing assembly is provided on the bearing member and/or on the top surface of the inner cavity of the valve body, and is used for cooperating with the bearing member to seal the large discharge port and cooperating with the small discharge port and the through hole to form the first communication passage;
wherein the bearing member comprises a bearing unit and a sliding unit; the sliding unit is slidably connected to the inner cavity of the valve body; and the bearing unit is mounted on the sliding unit.