CN220668566U - Balanced high-pressure miniature electromagnetic valve - Google Patents

Abstract

The utility model discloses a balanced high-pressure miniature electromagnetic valve, which comprises a static iron core, a mandril, a main valve, a valve seat and a movable iron core, wherein the right end of the valve seat is provided with an air inlet, the left end of the valve seat is provided with an air outlet, the air inlet and the air outlet are on the same straight line, the air outlet is not communicated with the air inlet, the lower end of the valve seat is provided with a lower cavity, the lower cavity is communicated with the air inlet through an inclined hole, the lower end of the main valve is positioned in the lower cavity, the upper end of the main valve is provided with the mandril, a cavity between the mandril and the main valve is provided with an upper cavity, the upper cavity is communicated with the lower cavity, the lower end of the static iron core is in threaded connection with the upper end of the valve seat, and the movable iron core is positioned in the static iron core, and the lower end of the movable iron core corresponds to the upper end of the mandril; this simple structure, the operation is stable, and air flue II and the setting of air flue I can be used to increase the cavity size in upper chamber, and the not enough in upper chamber is filled up to the benefit, and the upper chamber is the same with lower chamber space, makes lower chamber and upper chamber make gas be in balanced state, satisfies the user demand.

Description

Balanced high-pressure miniature electromagnetic valve

Technical Field

The utility model relates to the technical field of electromagnetic valves, in particular to a balanced high-pressure miniature electromagnetic valve.

Background

When the electromagnetic valve is electrified, the electromagnetic coil generates electromagnetic force to lift the closing member from the valve seat, and the valve is opened; when the power is off, the electromagnetic force disappears, the spring presses the closing piece on the valve seat, and the valve is closed; the valve is closed completely by the elasticity of the spring, so that the required pressure is high, the volume of the electromagnetic valve is increased, and the opening and closing of the electromagnetic valve are influenced; chinese patent application No. 202120393073.7 discloses a high-pressure electromagnetic valve with a built-in static pressure balancing device, wherein a pressure chamber is provided in the bottom end of the valve body, high-pressure gas accessed through the air inlet port is introduced into the pressure chamber through the air inlet port, the pressure chamber conveys the high-pressure gas into a plurality of cavities, and the cavities and the through holes cooperate to convey the high-pressure gas above the valve core; because the air inlet interface and the air outlet connector are in a communication state, the electromagnetic valve is in a closed state when being electrified by virtue of the valve core, the electromagnetic valve is powered off and conducted when being required to be opened, and the conveying of high-pressure gas on the air inlet interface is required to be cut off, and the gas in the pressure cavity is discharged through the air outlet hole, so that the operation is complex, and the structure is relatively complex; chinese patent application No. 201920265594.7 discloses a balanced electromagnetic valve, in which a water inlet through hole and a water outlet through hole transmit a medium into a movable iron core to make the acting forces on the movable iron core equal up and down, and the directions are opposite, so that the acting forces can be offset each other, the acting force of a spring is reduced, and the service life of the spring can be prolonged; the valve body is arranged between the static iron core and the movable iron core, and the movable iron core is of an integrated valve core structure, so that the volume is increased, once the valve body is damaged and needs to be replaced integrally, the valve body can only be detached from the upper end of the valve body, the water inlet and the water outlet are not on the same straight line, and the requirement of the same straight line installation environment of the inlet and the outlet is not met; a balanced high pressure miniature solenoid valve is proposed to address the above problems.

Disclosure of Invention

The utility model aims to overcome the prior art, and provides a balanced high-pressure miniature electromagnetic valve which is powered on, powered off and closed, wherein a main valve and a main spring are vertically arranged in a valve seat, components can be installed and overhauled from the upper direction and the lower direction of the valve seat, an inclined hole is designed to ensure that an air outlet and an air inlet are on the same straight line, and the problems in the background art can be effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a miniature solenoid valve of balanced high pressure, including quiet iron core, the ejector pin, the main valve, the valve seat and move the iron core, the right-hand member of valve seat is provided with the air inlet, the left end of valve seat is provided with the gas outlet, the air inlet is on same straight line with the gas outlet, and the gas outlet does not communicate with the air inlet, the lower extreme of valve seat is provided with the lower chamber, the lower chamber passes through inclined hole intercommunication with the air inlet, the lower extreme of main valve is arranged in the lower chamber, the upper end of main valve is provided with the ejector pin, the cavity between ejector pin and the main valve sets up to the upper chamber, upper chamber and lower chamber intercommunication, the lower extreme of quiet iron core passes through threaded connection with the upper end of valve seat, move the iron core and be arranged in quiet iron core, the lower extreme of moving the iron core corresponds with the upper end of ejector pin.

Further, the lower end threaded connection of lower chamber has the nut, and is provided with sealing washer III between lower chamber and the nut, is provided with the main spring between the bottom of nut and the main valve lower extreme.

Further, the static iron core is connected with the valve seat in a threaded mode, a sealing ring I is arranged between the upper end of the valve seat and the static iron core, and a sealing ring II is arranged between the valve seat and the main valve.

Further, the outside of quiet iron core is provided with the coil, and the outside of coil is provided with the dustcoat.

Further, the upper end of ejector pin sets up to the arc structure, and air flue I has been seted up at the ejector pin center, moves the iron core center and has seted up air flue II, and air flue II and air flue I intercommunication.

Compared with the prior art, the utility model has the beneficial effects that:

1. this simple structure, the operation is stable, and air flue II and the setting of air flue I can be used to increase the cavity size in upper chamber, and the not enough in upper chamber is filled up to the benefit, and the upper chamber is the same with lower chamber space, makes lower chamber and upper chamber make gas be in balanced state, satisfies the user demand.

2. The solenoid valve is electrified and conducted, the solenoid valve is powered off and closed, the main valve and the main spring are vertically arranged in the valve seat, components can be installed and overhauled in the upper direction and the lower direction of the valve seat, and the design inclined hole ensures that the air outlet and the air inlet are on the same straight line.

3. The movable iron core is in point contact with the upper end of the ejector rod, and the force of the ejector rod is ensured to be on the same straight line when the movable iron core applies force.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

In the figure: 1 static iron core, 2 ejector pin, 3 sealing washer I, 4 sealing washer II, 5 sealing washer III, 6 nut, 7 main spring, 8 main valve door, 9 valve seat, 10 dustcoat, 11 inclined hole, 12 lower chamber, 13 movable iron core, 14 coil, 15 upper chamber, 16 gas outlet, 17 air inlet, 18 air flue I, 19 air flue II.

Detailed Description

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1, the present utility model provides a technical solution: the utility model provides a miniature solenoid valve of balanced high pressure, including quiet iron core 1, ejector pin 2, main valve 8, valve seat 9 and movable iron core 13, the right-hand member of valve seat 9 is provided with air inlet 17, the left end of valve seat 9 is provided with gas outlet 16, air inlet 17 and gas outlet 16 are on same straight line, can satisfy the demand of installation space like this, can reduce the security to the mounted position, compare air inlet 17 and gas outlet 16 not on same straight line, save installation space, and gas outlet 16 and air inlet 17 do not communicate, the lower extreme of valve seat 9 is provided with cavity 12 down, cavity 12 and air inlet 17 communicate through inclined hole 11 down, the lower extreme of main valve 8 is arranged in cavity 12 down, the upper end of main valve 8 is provided with ejector pin 2, the cavity between ejector pin 2 and the main valve 8 sets up to cavity 15, upper cavity 15 and cavity 12 intercommunication down, the lower extreme of quiet iron core 1 and the upper end of valve seat 9 pass through threaded connection, movable iron core 13 is located quiet iron core 1, the lower extreme of movable iron core 13 corresponds with the upper end of ejector pin 2, the outside of quiet iron core 1 is provided with coil 14, the outside of coil 14 is provided with outer cover 10.

The lower extreme threaded connection of lower chamber 12 has nut 6, and is provided with sealing washer III 5 between lower chamber 12 and the nut 6, this sealing washer III 5 ensures the sealing performance of lower chamber 12, prevent to appear leaking gas, be provided with main spring 7 between the bottom of nut 6 and the main valve 8 lower extreme, when the electro-magnet is not circular telegram, main valve 8 contacts and seals with valve seat 9 under the effect of main spring 7 spring force, gas outlet 16 and lower chamber 12 do not communicate this moment, main valve 8 can be dismantled from the installation of valve seat 9 lower extreme also can follow the upper end installation dismantlement, provide the flexibility for the installation, improve the practicality of this device.

The static iron core 1 is connected with the valve seat 9 in a threaded mode, a sealing ring I3 is arranged between the upper end of the valve seat 9 and the static iron core 1, the sealing performance of the joint of the static iron core 1 and the valve seat 9 is ensured through the sealing ring I3, a sealing ring II 4 is arranged between the valve seat 9 and the valve 8 of the main valve, the sealing ring II 4 plays a role in preventing gas leakage of the upper cavity 15, the gas is prevented from entering the gas outlet 16, and the sealing performance of the electromagnetic valve in a closed state is ensured.

The upper end of ejector rod 2 sets up to arc structure, can make like this move iron core 13 and ejector rod 2 upper end and be the point contact, guarantee when moving iron core 13 and exerting force that ejector rod 2's atress is on same straight line, air flue I18 has been seted up at ejector rod 2 center, move iron core 13 center and seted up air flue II 19, air flue II 19 and air flue I18 intercommunication, the setting of this air flue II 19 and air flue I18 can be used for increasing the cavity size in upper chamber 15, makes up the not enough in upper chamber 15, makes upper chamber 15 and lower chamber 12 space the same, is in the pressure balance state.

When the electromagnet is not electrified, the air inlet 17 is used for air inlet, air enters the upper cavity 15 from the middle hole of the main valve 8, the upper sealing area and the lower sealing area are the same, balance is formed, the main valve 8 is contacted with the valve seat 9 and sealed under the action of a spring force, when the electromagnet is electrified, the movable iron core 13 is attracted, the main valve 8 is pushed to move downwards by the ejector rod 2, the main valve 8 overcomes the spring force of the main spring 7 and is separated from the valve seat 9, and the air passes through.

While the basic principles of the utility model have been shown and described, there are various changes and modifications to the utility model, which fall within the scope of the utility model as hereinafter claimed, without departing from the spirit and scope of the utility model.

Claims (5)

1. The utility model provides a miniature solenoid valve of balanced high pressure, includes quiet iron core (1), ejector pin (2), main valve (8), valve seat (9) and moves iron core (13), its characterized in that: the right-hand member of valve seat (9) is provided with air inlet (17), the left end of valve seat (9) is provided with gas outlet (16), air inlet (17) are on same straight line with gas outlet (16), and gas outlet (16) are not linked together with air inlet (17), the lower extreme of valve seat (9) is provided with down chamber (12), down chamber (12) and air inlet (17) are through inclined hole (11) intercommunication, the lower extreme of main valve (8) is arranged in down chamber (12), the upper end of main valve (8) is provided with ejector pin (2), the cavity between ejector pin (2) and main valve (8) sets up to upper chamber (15), upper chamber (15) and lower chamber (12) intercommunication, the lower extreme of quiet iron core (1) and the upper end of valve seat (9) pass through threaded connection, move iron core (13) and be arranged in quiet iron core (1), the lower extreme of moving iron core (13) corresponds with the upper end of ejector pin (2).

2. The balanced high pressure micro solenoid valve as set forth in claim 1, wherein: the lower end of the lower cavity (12) is in threaded connection with a screw cap (6), a sealing ring III (5) is arranged between the lower cavity (12) and the screw cap (6), and a main spring (7) is arranged between the bottom of the screw cap (6) and the lower end of the main valve (8).

3. The balanced high pressure micro solenoid valve as set forth in claim 1, wherein: the static iron core (1) is connected with the valve seat (9) in a threaded mode, a sealing ring I (3) is arranged between the upper end of the valve seat (9) and the static iron core (1), and a sealing ring II (4) is arranged between the valve seat (9) and the main valve (8).

4. The balanced high pressure micro solenoid valve as set forth in claim 1, wherein: the outer side of the static iron core (1) is provided with a coil (14), and the outer side of the coil (14) is provided with a housing (10).

5. The balanced high pressure micro solenoid valve as set forth in claim 1, wherein: the upper end of ejector rod (2) sets up to arc structure, and air flue I (18) have been seted up at ejector rod (2) center, and air flue II (19) have been seted up at movable iron core (13) center, and air flue II (19) and air flue I (18) intercommunication.