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Direct-acting type two-position three-way solenoid valve

A two-position, three-way, solenoid valve technology, applied in the field of solenoid valves, can solve the problem that water, gas, and oil media cannot be used universally.

Inactive Publication Date: 2009-10-07
ANSHAN SOLENOID VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the usual solenoid valve can only work in one direction, that is, it can be used in accordance with the specified medium flow direction to realize the function of the solenoid valve. It is usually used in pneumatic control and cannot be used for water, gas and oil media.

Method used

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  • Direct-acting type two-position three-way solenoid valve

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Embodiment Construction

[0014] The direct-acting two-position three-way solenoid valve adopts a pressure-balanced sealing structure, including a valve body 1, a valve disc 3, and a valve stem assembly 4. The valve body 1 is provided with three ports 2, 7, 8, the valve disc 3 is fixedly connected with the bottom end of the valve stem assembly 4 installed in the valve body 1, and the bottom end of the valve disc 3 is provided with a straight-through valve stem assembly 4 top The through hole 5 is connected to the upper cavity 6. When the valve disc 3 falls, the bottom surface of the valve disc 3 can seal the channel opening 9 in the valve body 1. At this time, the fluid medium passes through the valve stem. From the through hole 5 to the upper chamber 6 of the valve, the pressure acting on the valve stem assembly 4 and the pressure acting on the lower valve disc 3 achieve a balanced seal, so that the electromagnetic valve is closed by the known iron core weight and spring force. Valve; when energized, ...

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Abstract

The invention relates to a direct-acting type two-position three-way solenoid valve, an inner cavity of which adopts a pressure balancing type sealing structure. The solenoid valve comprises a valve body, valve seats and a valve rod component. The valve body is provided with three ports; a valve disc is fixedly connected with the bottom end of the valve component in the valve body; the bottom end of the valve disc is provided with a through hole which is straight through the valve rod component; the through hole is communicated with an upper cavity channel; when the valve disc falls down, the disc surface of the bottom end of the valve disc can seal a channel port of the valve body, so as to form a sealing structure with communicated valve rods; the medium leads the medium force applied to the valve disc to achieve balance upward and downward by the through hole, so as to form the direct-acting type two-position three-way solenoid valve which adopts the pressure balancing type sealing structure with the communicated valve body. The solenoid valve can work under the condition of vacuum, realize the functions of bearing negative pressure, two-way sealing, random connection and alternation of the ports as an inlet, and work without pressure difference. The solenoid valve can realize direct-acting type control of the solenoid valve with larger diameter in more economic electromagnet range.

Description

technical field [0001] The invention relates to a solenoid valve used in automation control, in particular to a direct-acting two-position three-way solenoid valve. Background technique [0002] Solenoid valve is the executive component of the automatic control of the pipeline system. It has a two-position switch action. Generally, the solenoid valve relies on the transmission of pressure to push the valve plug to reciprocate, so as to close or open the valve. Therefore, the usual solenoid valve can only work in one direction, that is, it can only be used in accordance with the specified medium flow direction to realize the function of the solenoid valve. It is usually used in pneumatic control and cannot be used for water, gas and oil media. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a valve that is not affected by the pressure and flow direction of the medium flow and is only affected by the spring force, ...

Claims

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Application Information

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IPC IPC(8): F16K11/044F16K31/06
Inventor 刘玉华
Owner ANSHAN SOLENOID VALVE
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