Title:
ELECTROMAGENETIC CHECK VALVE WITH ADJUSTABLE CUTOFF DIRECTION
Document Type and Number:
WIPO Patent Application WO/2020/051966
Kind Code:
A1
Abstract:
A check valve with an adjustable cutoff direction, the check valve comprising a first housing (10) and a second housing (50) connected to one another, a first through hole (15) being disposed in the first housing (10) and a fourth connecting hole (54) in communication with the first through hole (15) being disposed in the second housing (50), a first valve core (16) slidably engaged with the first through hole (15), and a first spring (19) pressing against the first valve core (16), the first valve core (16) being capable of sealing the fourth connecting hole (54), a second through hole (55) being disposed in the second housing (50), a second connecting hole (14) in communication with the second through hole (55) being disposed in the first housing (10), and the second connecting hole (14) and the fourth connecting hole (54) being in communication with one another; a second valve core (56) slidably engaged with the second through hole (55), and a second spring (59) pressing against the second valve core (56), the second valve core (56) being capable of sealing the second connecting hole (14); a first electromagnet drive apparatus (100) connected to the first housing (10), the first electromagnet drive apparatus (100) being capable of driving the first drive core (16) to separate from the fourth connecting hole (54); and a second electromagnet drive apparatus (150) connected to the second housing (50), the second electromagnet drive apparatus (150) being capable of driving the second drive core (56) to separate from the second connecting hole (14). The present check valve can conveniently control the reverse direction flow of the oil.
Inventors:
QIU MEI (CN)
Application Number:
PCT/CN2018/109868
Publication Date:
March 19, 2020
Filing Date:
October 11, 2018
Export Citation:
Assignee:
SUZHOU DANDUN ELECTROMECHANICAL CO LTD (CN)
International Classes:
F16K15/08
Foreign References:
| CN109083876A | 2018-12-25 | |||
| CN109027338A | 2018-12-18 | |||
| CN207131916U | 2018-03-23 | |||
| CN206846000U | 2018-01-05 | |||
| US4974628A | 1990-12-04 | |||
| EP1148282A2 | 2001-10-24 | |||
| CN105240577A | 2016-01-13 | |||
| US4458717A | 1984-07-10 |
Attorney, Agent or Firm:
SUZHOU WISTONG INTELLECTUAL PROPERTY AGENCY (COMMON PARTNERSHIP) (CN)
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