Pilot type membrane electromagnetic switch valve
An electromagnetic on-off valve, pilot-operated technology, applied in valve details, valve devices, valve operation/release devices, etc., can solve the problems of electromagnetic on-off valve failure, diaphragm damping hole blocking, main valve core stuck, etc. , to achieve the effects of reduced cleanliness requirements, excellent sealing, and improved reliability and life
Active Publication Date: 2015-08-05
HUST WUXI RES INST
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Problems solved by technology
In actual working conditions, impurities in the liquid medium can easily cause the main valve core to be stuck, the valve seal is not tight or the damping hole of the diaphragm is blocked, resulting in the failure of the electromagnetic switch valve, thus affecting the use of the entire system
Method used
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[0015] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0016] see figure 1 and figure 2 As shown, in this embodiment, a pilot-operated diaphragm electromagnetic switch valve includes a valve body 1, a main valve core 2, a moving iron core assembly 3, a magnetic isolation tube 4, a diaphragm 5 and a coil assembly 6, and the valve The two ends of the body 1 are provided with a connected liquid inlet 7 and a liquid outlet 8, the main valve core 2 is set on the valve body 1 through the valve cover 9, and the center of the main valve core 2 corresponds to the liquid The channel is provided with a pilot hole 10, and the main valve core 2 is provided with a diaphragm 5 for blocking the liquid inlet 7 and the liquid outlet 8, and the moving iron core assembly 3 is arranged above the main valve core 2 , the magnetic isolation tube 4 is set outside the moving ...
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The invention discloses a pilot type membrane electromagnetic switch valve. The pilot type membrane electromagnetic switch valve comprises a valve body, a main valve core, a movable iron core module, a magnetism isolating pipe, a membrane and a coil assembly, wherein a liquid inlet and a liquid outlet are formed in two ends of the valve body, the main valve core is arranged on the valve body through a valve cover, a pilot hole is formed in the center of the main valve core, the membrane used to separate the liquid inlet from the liquid outlet is arranged on the main valve core, the movable iron core module is arranged above the main valve core, the magnetism isolating pipe sleeves the movable iron core module, the coil assembly is arranged on the exterior of the magnetism isolating pipe, and locked through a nut, a reset spring is arranged between the movable iron core module and the magnetism isolating pipe, a containing cavity is formed in the bottom surface of the movable iron core module, a pilot hole sealing module is arranged in the containing cavity, and a filter screen is arranged on the liquid inlet. The pilot type membrane electromagnetic switch valve can effectively filter impurities in a medium pipeline, and has the advantages of being simple in structure, convenient to maintain, and high in reliability.
Description
technical field [0001] The invention relates to an electromagnetic on-off valve, in particular to a pilot-operated diaphragm electromagnetic on-off valve which is suitable for liquid working medium with impurities and can realize pipeline on-off. Background technique [0002] The pilot solenoid valve is a commonly used solenoid valve in the hydraulic system. The on-off function of the electromagnetic switch valve in the pipeline is mainly realized by the diaphragm on the main valve core, and the tightness between the diaphragm and the valve directly affects the performance of the entire valve. In actual working conditions, the impurities in the liquid medium can easily cause the main valve core to be stuck, the valve seal is not tight or the damping hole of the diaphragm is blocked, resulting in the failure of the electromagnetic switch valve, thus affecting the use of the entire system. Contents of the invention [0003] The purpose of the present invention is to provide...
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Login to View More IPC IPC(8): F16K31/06
CPCF16K31/06
Inventor 李晓辉杨曙东杜广杰全伟才
Owner HUST WUXI RES INST