Sealing electromagnetic valve

Abstract

The invention discloses a sealing electromagnetic valve. The sealing electromagnetic valve comprises a valve seat, a coil rack and a valve bonnet, wherein the coil rack is arranged on the valve seat, and the valve bonnet covers the outside of the coil rack and is connected to the valve seat; a buffer cavity communicating with an inner cavity of the coil rack is formed in the valve seat, and an inflow pipe and an outflow pipe which communicate with the buffer cavity are arranged in the valve seat; a coil is wound around the exterior of the coil rack; a movable iron core is arranged in the coil rack in a sliding mode; a valve element is connected to the end, different from the valve bonnet, of the movable iron core through a connecting rod; a fixed iron core is fixedly arranged at the top of an inner cavity of the valve bonnet and is connected to the movable iron core through a spring; a corrugated pipe is arranged in the buffer cavity; one end of the corrugated pipe is connected to the valve element in a sealed mode, and the other end of the corrugated pipe is connected to the valve bonnet in a sealed mode; and the corrugated pipe communicates with the inflow pipe and the outflow pipe. The sealing electromagnetic valve has the advantages that the valve element is connected to the corrugated pipe in a sealed mode, the corrugated pipe is connected to the valve bonnet in a sealed mode so that an integral sealing structure can be formed, and therefore leakage of mediums through a gap of the coil rack in the flowing process can be avoided.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a sealed electromagnetic valve. Background technique [0002] Solenoid valve is an industrial equipment controlled by electromagnetic, which is often used in flammable, explosive and toxic working conditions. At present, in terms of structure and principle, the solenoid valve controls the different positions of the valve core in the valve body through the electromagnetic coil to realize various switching actions of the valve; after the valve core has been used for a long time, the accuracy of its cooperation has decreased, and the long-term In use, the adjustable fully-sealed solenoid valve often moves slowly due to poor sealing, gas leakage or complex structure, and can not be opened and closed quickly, resulting in gas leakage and other safety problems, which bring safety risks to the on-site staff, so The solenoid valve currently used has the defects of complex structure, trou...

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Problems solved by technology

At present, in terms of structure and principle, solenoid valves control the different positions of the valve core in the valve body through electromagnetic coils to realize various switching actions of the valve; after the valve core has been used for a long time, the accuracy of its cooperation has decreased, and the long-term In use, the adjustable fully-sealed solenoid valve often moves slowly due to poor sealing, gas leakage or complex structure, and cannot be opened and closed quickly, resulting in gas leakage and other safety problems, which bring safety risks to the on-site staff, so The solenoid valve currently used has the defects of complex structure, troublesome manufacture, high cost and easy leakage

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