A cam type multi-stable reversing valve and its working position switching method

A multi-stable, cam-type technology, applied in the field of solenoid valves, can solve the problems of increasing the cost of using electromagnetic reversing valves and the power consumption of electromagnets, and achieve the effects of reducing control difficulty and cost, eliminating resistance, and improving service life
CN111156218BActive Publication Date: 2021-11-09SHANGHAI HAILUFENG MARINE VALVE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI HAILUFENG MARINE VALVE
Publication Date
2021-11-09

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Abstract

The invention discloses a cam type multi-stable reversing valve and a working position switching method thereof. Among the existing electromagnetic valves, only the bistable electromagnetic energizing valve can have two stable working positions; the present invention is a cam type multi-stable reversing valve, which comprises a valve seat, a valve core, a first electromagnet, a second Electromagnet, moving permanent magnet and working position switching mechanism. Both the first electromagnet and the second electromagnet are de-energized electromagnets; the working position switching mechanism includes a bracket, a rotating shaft, a one-way bearing, a torsion spring, a cam, a push rod and a transmission assembly. The transmission assembly includes a driven iron block, a slider, a connecting rod and a rocker. The invention drives the spool of the reversing valve through the cam mechanism, so that the reversing valve does not need to consume electric energy when it is in each working position, which greatly reduces the use cost of the solenoid valve; The defect that iron needs to be kept energized for a long time is prone to damage, which improves the service life of the reversing valve.
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Description

technical field

[0001] The invention belongs to the technical field of electromagnetic valves, and in particular relates to a cam type multi-stable reversing valve and a working position switching method thereof. Background technique

[0002] In the existing electromagnetic reversing valve, there is only one stable working position that does not need to consume electric energy, but when the electromagnetic reversing valve is in an unstable working position, the electromagnet needs to be continuously energized to consume electric energy. This greatly improves the use cost of the electromagnetic reversing valve; among the existing electromagnetic valves, only the bistable electromagnetic energizing valve can have two stable working positions; however, for the reversing valve, it is often necessary to have three or three more than one working position to meet the requirements of use. Therefore, it is very important to design a reversing valve in which all working positions are...

Claims

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