Integrated bistable solenoid valve

Abstract

The integrated bistable solenoid valve in the invention comprises a electromagnetic valve head mounted on valve body; the electromagnetic valve head comprises a cover casing formed with external thread; the cover casing is in threaded connection with a valve body formed with internal thread; a coil frame is equipped in the inner cavity of the cover casing; a coil is disposed on the waist of the coil frame; a fixed iron core, a moving iron core with a built-in adhesive spring and a plug are disposed in sequence in the inner upper cavity of the coil frame; a first O-shaped sealing ring is disposed in the ring groove of the fixed iron core; an anti-blocking needle spring, a piston film core and a rubber film are disposed in sequence in the inner lower cavity of the coil frame; the coil frame is equipped with a first and a second shielding iron plate which form a shielding space together with the coil outer cap; the rubber film is clamped on the lower port of the cover casing by sealing; a magnet is disposed on the top of the coil frame; a coil casing cover is disposed on the cover casing opening, and is fixed by a casing locking plate; an anti-reverse inserting wire with enclosed coil sheath is lead out from the coil; the coil sheath is positioned on the coil casing cover; and the piston film core is assembled with the rubber film to compose a direct acting piston type structure.

Description

technical field [0001] The invention relates to the technical field of solenoid valves, in particular to a bistable solenoid valve with an integrated structure. Background technique [0002] Usually, the bistable solenoid valve structure includes a valve body and an electromagnetic control valve. A rubber membrane and a rubber skeleton are fitted between the valve seat of the electromagnetic main control valve and the valve of the valve body. The middle position and the side position of the rubber skeleton are both There is a through hole, and there are two holes on the rubber membrane corresponding to the through holes on the rubber skeleton. The rubber plug of the electromagnetic control valve is against the middle through hole in the rubber skeleton, and a small stainless steel guide needle is installed on the valve seat. And insert the guide hole on the rubber skeleton, install a water volume regulator that can adjust the water volume between the liquid flow in and out o...

AI Technical Summary

Problems solved by technology

Although it is equipped with devices such as adjusting water volume, filtering impurities, and preventing blockage of diversion holes, the structure is complex, and there are relatively complicated water passages inside the valve seat, and the layout of components is chaotic, which is inconvenient for maintenance.

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