An easy-start solenoid valve structure with buffer function
By introducing a buffer mechanism and rubber seals into the actuation part of the solenoid valve, the problem of unstable starting voltage under high and low temperature environments is solved, achieving easy starting of the solenoid valve and protection of the seals, making it suitable for miniaturized and lightweight designs.
CN115823289BActive Publication Date: 2026-05-26CHANGCHUN AVIATION HYDRAULIC CONTROL
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGCHUN AVIATION HYDRAULIC CONTROL
- Filing Date
- 2022-12-08
- Publication Date
- 2026-05-26
Smart Images
Figure CN115823289B_ABST
Abstract
This invention discloses an easy-start solenoid valve structure with buffer function, including a valve body, a push rod, a first valve assembly, a core rod, a second valve assembly, a gasket, a first spring, a pin, a screw plug, a second spring, and a spring seat. The push rod is slidably disposed within the valve body, and its upper end is connected to the armature of an electromagnet. The first valve assembly is disposed within the valve body, the core rod is slidably disposed within the valve body, the spring seat is screwed onto the valve body, and the screw plug is slidably disposed within the valve body. A second spring is disposed between the screw plug and the spring seat, with one end of the second spring tightly attached to the screw plug. This invention is applicable to the use requirements of two-position three-position normally closed solenoid valves with a maximum working pressure of 21MPa and below. By introducing a buffer spring, damage to the sealing structure is reduced when the valve assembly is sealing, and the frictional resistance is converted from static friction to dynamic friction, making the product easier to start.
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