Title:
CONTROL VALVE AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/218405
Kind Code:
A1
Abstract:
A control valve and a manufacturing method therefor. The control valve comprises a valve body (10) and a valve core (20). The valve core (20) comprises a top plate (201), a bottom plate (202), a first stop block (203) and a valve core shaft assembly (SA). The valve core shaft assembly (SA) comprises a transmission connection part (222). At least part of the transmission connection part (222) is position on the side of the top plate (201) away from the bottom plate (202). The first stop block (203) is fixedly connected to the top plate (201) to form an integrated structure. The first stop block (203) extends from the top plate (201) in a direction away from the bottom plate (202). The valve body (10) further comprises a top wall part (13) and a second stop block (15) that are positioned at one end in the height direction of the side wall part (11). The top wall part (13) and the side wall part (11) are integrally formed. The top wall part (13) is provided with a through hole (131). The through hole (131) is in communication with the valve cavity (101). At least part of the transmission connection part (222) penetrates through the through hole (131) to be positioned outside the valve body (10). The second stop block (15) is positioned in the valve cavity (101) and protrudes out from the top wall part (13). The second stop block (15) is fixedly connected to the top wall part (13) to form an integrated structure. When the valve core (20) rotates to a predetermined position, the first stop block (203) abuts against the second stop block (15) and limits the valve core (20) from continuing to rotate towards the second stop block (15). In this way, the position of the valve core (20) can be relatively accurate, and the deformation degree of the valve core (20) is reduced.
Inventors:
WANG LIXIN (CN)
LIN LONG (CN)
WANG YUN (CN)
LIN LONG (CN)
WANG YUN (CN)
Application Number:
PCT/CN2022/087033
Publication Date:
October 20, 2022
Filing Date:
April 15, 2022
Export Citation:
Assignee:
ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD (CN)
International Classes:
F16K11/085; F16K27/06
Foreign References:
| CN109237054A | 2019-01-18 | |||
| CN201246487Y | 2009-05-27 | |||
| CN107202173A | 2017-09-26 | |||
| CN109424766A | 2019-03-05 | |||
| CN104896147A | 2015-09-09 | |||
| JP2019132286A | 2019-08-08 | |||
| JP2008215626A | 2008-09-18 | |||
| JP2006009830A | 2006-01-12 | |||
| US20200049265A1 | 2020-02-13 | |||
| CN202110411384A | 2021-04-16 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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