CN214662041U - High-end exquisite type solenoid valve with zero leakage - Google Patents

Abstract

The invention discloses a high-end exquisite electromagnetic valve with zero leakage, which comprises a valve body, a valve core component and a valve cover component, wherein the inside of the valve core component is jointly composed of a movable iron core and a knife edge sealing element, the inside of the valve cover component is jointly composed of a valve cover, a guide pipe, a static iron core and a magnetism isolating ring, the valve core component is embedded in the valve body, the upper end of the valve body is fixed with the valve cover component through a locking screw, a coil sealing ring and a flat gasket are arranged in the electromagnetic coil component, the coil sealing ring and the flat gasket are tightly attached, the coil sealing ring is tightly attached right below the flat gasket, and a hexagonal thin nut is arranged at the upper end of the electromagnetic coil component. The novel valve knife edge is designed in the valve body, the direct-acting valve core component is designed in the center above the valve body, and the return spring is designed in the center of the valve core component, so that the valve core component can be tightly closed with the valve knife edge when the electromagnetic coil is not electrified, and the zero-leakage effect when the valve is closed is obtained.

Description

High-end exquisite type solenoid valve with zero leakage

Technical Field

The invention relates to the technical field of electromagnetic valves, in particular to a high-end exquisite electromagnetic valve with zero leakage.

Background

The electromagnetic valve is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, and is not limited to hydraulic pressure and pneumatic pressure. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The solenoid valve can be matched with different circuits to realize expected control, and the precision and flexibility of the control can be basically ensured.

With the wider application range of the solenoid valve, especially under the working conditions of zero pressure or micro pressure medium and zero leakage, the existing solenoid valve achieves basic operation performance, but the whole structure has poor sealing protection performance, long-time operation easily causes unreliable sealing, and the solenoid valve is damaged, so that the service life of the solenoid valve is reduced, and the operation quality of the solenoid valve in a control system is affected, therefore, the existing technology needs to be improved to solve the problems.

Disclosure of Invention

The invention aims to provide a high-end exquisite electromagnetic valve with zero leakage, which aims to solve the problems that although the existing electromagnetic valve provided in the background art achieves basic operation performance, the overall structure has poor sealing protection performance, long-time operation easily causes unreliable sealing, the electromagnetic valve is damaged, the service life of the electromagnetic valve is shortened, and the operation quality of the electromagnetic valve in a control system is influenced.

In order to achieve the purpose, the invention provides the following technical scheme: a high-end exquisite electromagnetic valve with zero leakage comprises a valve body, a valve core component and a valve cover component, the valve core part is internally composed of a movable iron core and a knife edge sealing element, the valve cover part is internally composed of a valve cover, a conduit, a static iron core and a magnetism isolating ring, the valve core component is embedded in the valve body, the upper end of the valve body is fixed with the valve cover component through a locking screw, the surface of the valve cover component is provided with a screw groove hole, an electromagnetic coil component is arranged above the valve body, a notch is arranged inside the electromagnetic coil component and is connected with the valve cover component, a coil positioning cover is arranged at the lower end of the electromagnetic coil component, a coil sealing ring and a flat gasket are arranged in the electromagnetic coil component, the coil sealing ring and the flat gasket are tightly jointed, and the coil sealing ring is tightly attached right below the flat gasket, and the upper end of the electromagnetic coil component is provided with a hexagonal thin nut.

Preferably, a return spring is installed inside the valve core component, and a valve cover sealing ring is installed at the connection position of the valve core component and the valve cover component.

Preferably, a medium flow channel inlet, a valve front cavity, a valve knife edge, a valve rear cavity and a medium flow channel outlet are arranged in the valve body.

Preferably, after the electromagnetic coil part is powered on, the electromagnetic force directly lifts the valve core part upwards to be attached to the static iron core, and after the electromagnetic coil part is powered off, the spring force of the return spring pushes the valve core part to move downwards until the knife edge sealing part is tightly attached to the knife edge of the valve.

Preferably, the valve body is of a cuboid structure, the medium flow passage inlet in the valve body is communicated with the cavity in front of the valve through two vertically crossed holes drilled, the cavity in front of the valve is communicated with the cavity in back of the valve through two vertically crossed holes drilled, and the medium flow passage inlet and the medium flow passage outlet are correspondingly threaded according to the standard of the internal thread valve.

Preferably, the knife tip surface of the valve knife edge adopts a small arc smooth transition, the small arc is tangent to the middle hole and the outer inclination, and the valve knife edge is tightly attached to the knife edge sealing piece.

Preferably, the valve cover and the guide pipe are welded in an argon arc mode, the guide pipe and the static iron core are welded in an argon arc mode, the magnetism isolating ring and the static iron core are in rivet pressing tight fit, the end face of the valve cover is provided with the sealing ring installation groove, and the inner cavity of the sealing ring installation groove and the cavity above the valve body jointly form a sealed valve front cavity.

Preferably, the coil positioning cover is of a square opening box-shaped structure, the coil positioning cover is matched with the valve body in shape, and two positioning columns are arranged above the coil positioning cover and matched with small holes in the electromagnetic coil component.

Preferably, the movable iron core and the knife edge sealing element are assembled in an embedded design, a through hole is formed in the center of the movable iron core, a small hole communicated with the central hole is formed in the side edge of the movable iron core, and the knife edge sealing element is formed by pressing a fluorine-containing rubber material structure.

Compared with the prior art, the invention has the beneficial effects that:

(1) by designing a novel valve knife edge in the valve body, designing a direct-acting valve core component in the center above the valve body and designing a return spring in the center of the valve core component, the valve core component can be tightly closed with the valve knife edge when the electromagnetic coil is not electrified, and the zero leakage effect when the valve is closed is obtained;

(2) the tool nose surface of the valve tool edge adopts a small arc smooth transition, and the small arc is tangent with the middle hole and the outer inclination, so that the design can obtain better surface quality of the valve tool edge, and the valve tool edge is matched with the tool edge sealing piece to be flat and compact, thereby obtaining the characteristic of zero leakage;

(3) the movable iron core and the knife edge sealing gasket are assembled in an embedded design, so that the knife edge sealing piece can be prevented from sliding off when the valve is opened; the center of the movable iron core is provided with a through hole for ejecting the tool out when the tool edge sealing element is repaired and replaced, so that the convenience is improved; the side edge of the movable iron core is provided with a small hole communicated with the central hole, so that impurities accumulated in the central hole of the movable iron core can be discharged, and better valve core opening flexibility and reliability can be obtained; the knife edge sealing piece is designed by adopting an imported fluorine-containing rubber material, so that better temperature resistance and ageing resistance are obtained, and the super-long service life of the whole valve is further obtained;

(4) the reset spring is designed in the center above the valve core component and is embedded into the moving iron core, the compression force is designed, and the hardness, the tensile strength and the size area of the used knife edge sealing piece are fully combined for comprehensive calculation, so that the knife edge sealing piece of the valve core component can be pushed to be tightly attached to the knife edge of the valve body when the valve is closed, and the zero-leakage characteristic is obtained;

(5) coil location lid adopts the design of square opening box-like, cooperates with the appearance of valve body, and the top is equipped with 2 reference columns, cooperates with the aperture on the coil part, and through this design, can prevent the problem that can rotate after the coil installation to avoid leading to the potential hidden danger that the coil wire fracture drops because of the coil rotates, and then improved whole valve reliability.

Drawings

FIG. 1 is an overall exploded view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a side view of the present invention;

FIG. 5 is a top view of the present invention;

FIG. 6 is an exploded view of the valve core component of the present invention;

FIG. 7 is an exploded view of the valve cover component of the present invention;

FIG. 8 is a front view of a valve cover component of the present invention;

FIG. 9 is a schematic view of the internal construction of the valve cover component of the present invention;

FIG. 10 is a top view of a valve cover component of the present invention;

FIG. 11 is a schematic view of the internal construction of the valve core component of the present invention;

fig. 12 is an isometric view of a coil positioning cap of the present invention.

In the figure: 1. a valve body; 2. a valve core component; 3. a return spring; 4. a bonnet member; 5. a valve cover sealing ring; 6. locking the screw; 7. a coil positioning cover; 8. an electromagnetic coil component; 9. a coil sealing ring; 10. a flat gasket; 11. a hexagonal thin nut; 12. a media flow channel inlet; 13. a valve front cavity; 14. a valve knife edge; 15. a valve rear cavity; 16. a media flow channel outlet; 17. a movable iron core; 18. a knife edge seal; 19. a valve cover; 20. a conduit; 21. a stationary iron core; 22. magnetism isolating ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-12, an embodiment of the present invention is shown: a high-end exquisite electromagnetic valve with zero leakage comprises a valve body 1, a valve core component 2 and a valve cover component 4, wherein the inside of the valve core component 2 consists of a movable iron core 17 and a knife edge sealing element 18, the inside of the valve cover component 4 consists of a valve cover 19, a guide pipe 20, a static iron core 21 and a magnetism isolating ring 22, the valve core component 2 is embedded in the valve body 1, the upper end of the valve body 1 is fixed with the valve cover component 4 through a locking screw 6, the surface of the valve cover component 4 is provided with a screw slotted hole, an electromagnetic coil component 8 is arranged above the valve body 1, the inside of the electromagnetic coil component 8 is provided with a slotted hole connected with the valve cover component 4, the lower end of the electromagnetic coil component 8 is provided with a coil positioning cover 7, the inside of the electromagnetic coil component 8 is provided with a coil sealing ring 9 and a flat gasket 10, the coil sealing ring 9 and the flat gasket 10 are tightly attached, and the coil sealing ring 9 is tightly attached under the flat gasket 10, a hexagonal thin nut 11 is attached to the upper end of the solenoid component 8.

Further, a return spring 3 is installed inside the valve core component 2, and a valve cover sealing ring 5 is installed at the joint of the valve core component 2 and the valve cover component 4.

Further, a medium flow channel inlet 12, a valve front cavity 13, a valve knife edge 14, a valve rear cavity 15 and a medium flow channel outlet 16 are arranged in the valve body 1.

Further, after the electromagnetic coil component 8 is powered on, the electromagnetic force directly lifts the valve core component 2 upwards to be attached to the static iron core 21, and after the electromagnetic coil component 8 is powered off, the spring force of the return spring 3 pushes the valve core component 2 to move downwards until the knife edge sealing element 18 is tightly attached to the valve knife edge 14.

Further, the valve body 1 is of a cuboid structure, the medium flow passage inlet 12 in the valve body 1 is communicated with the front valve cavity 13 through two vertically crossed drilled holes, the front valve cavity 13 is communicated with the rear valve cavity 15 through two vertically crossed drilled holes, and the medium flow passage inlet 12 and the medium flow passage outlet 16 are used for machining corresponding threads according to the internal thread valve standard.

Further, the knife tip surface of the valve knife edge 14 adopts a small arc smooth transition, the small arc is tangent with the middle hole and the outer inclination, and the valve knife edge 14 is tightly attached to the knife edge sealing element 18.

Further, the valve cover 19 and the guide pipe 20 are welded in an argon arc mode, the guide pipe 20 and the static iron core 21 are welded in an argon arc mode, the magnetism isolating ring 22 and the static iron core 21 are in rivet pressing tight fit, a sealing ring installation groove is formed in the end face of the valve cover 19, and the inner cavity of the sealing ring installation groove and the cavity above the valve body 1 form a sealed valve front cavity 13 together.

Further, the coil positioning cover 7 is of a square opening box-shaped structure, the coil positioning cover 7 is matched with the appearance of the valve body 1, and two positioning columns are arranged above the coil positioning cover 7 and matched with small holes in the electromagnetic coil component 8.

Further, the movable iron core 17 and the knife edge sealing element 18 are assembled in an embedded design, a through hole is formed in the center of the movable iron core 17, a small hole is formed in the side edge of the movable iron core 17 and communicated with the central hole, and the knife edge sealing element 18 is formed by pressing a fluorine-containing rubber material structure.

The working principle is as follows: when the valve body is used, the raw materials used for processing the valve body are profiles with conventional specifications, the characteristics of the valve body, particularly the characteristics of a valve edge of the valve body can be obtained through turning and drilling after the raw materials are blanked, and the design characteristics and good processing surface quality can be obtained by finish turning of a forming cutter; the valve core component has the characteristics of simple processing technology, convenient assembly and combination and high reliability of assembly, the valve cover is formed by one-step stamping processing, the characteristics can be obtained, the guide pipe adopts a standard cold-drawn pipe and is formed by one-step blanking, the static iron core adopts the conventional bar stock, the finish turning processing is performed, the magnetism isolating ring adopts a standard pipe material and is formed by one-step blanking, the magnetism isolating ring and the static iron core adopt riveting tight fit, and the valve cover and the guide pipe adopt argon arc welding, the guide pipe and the static iron core are welded by argon arc, and then the guide pipe and the static iron core are turned after a sealing ring mounting groove on the end face of the valve cover is turned, so that the characteristics of mature processing technology, reliable processing quality, high pressure resistance of a cavity and good sealing performance can be obtained.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. A high-end exquisite electromagnetic valve with zero leakage comprises a valve body (1), a valve core component (2) and a valve cover component (4), and is characterized in that the valve core component (2) is internally formed by a movable iron core (17) and a knife edge sealing element (18) together, the valve cover component (4) is internally formed by a valve cover (19), a guide pipe (20), a static iron core (21) and a magnetism isolating ring (22) together, the valve core component (2) is embedded in the valve body (1), the upper end of the valve body (1) is fixed with the valve cover component (4) through a locking screw (6), the surface of the valve cover component (4) is provided with a screw slot hole, an electromagnetic coil component (8) is installed above the valve body (1), a slot opening is formed in the electromagnetic coil component (8) and connected with the valve cover component (4), a coil positioning cover (7) is installed at the lower end of the electromagnetic coil component (8), the coil sealing ring (9) and the flat gasket (10) are arranged inside the electromagnetic coil component (8), the coil sealing ring (9) and the flat gasket (10) are tightly attached, the coil sealing ring (9) is tightly attached to the position right below the flat gasket (10), and the hexagonal thin nut (11) is arranged at the upper end of the electromagnetic coil component (8).

2. A high-end compact solenoid valve with zero leakage as claimed in claim 1 wherein: a return spring (3) is installed inside the valve core component (2), and a valve cover sealing ring (5) is installed at the joint of the valve core component (2) and the valve cover component (4).

3. A high-end compact solenoid valve with zero leakage as claimed in claim 1 wherein: the valve body (1) is internally provided with a medium flow channel inlet (12), a valve front cavity (13), a valve knife edge (14), a valve rear cavity (15) and a medium flow channel outlet (16).

4. A high-end compact solenoid valve with zero leakage as claimed in claim 1 wherein: after the electromagnetic coil component (8) is electrified, the electromagnetic force directly lifts the valve core component (2) upwards to be attached to the static iron core (21), and after the electromagnetic coil component (8) is powered off, the spring force of the return spring (3) pushes the valve core component (2) to move downwards until the knife edge sealing member (18) is tightly attached to the valve knife edge (14).

5. A high-end compact solenoid valve with zero leakage as claimed in claim 3 wherein: the valve body (1) appearance is the cuboid structure, and cavity (13) adopted two vertically crossing holes of drilling to switch on before cavity (13) and the valve before valve body (1) inside medium runner entry (12), and cavity (15) adopted two vertically crossing holes of drilling to switch on behind cavity (13) and the valve before the valve, and medium runner entry (12) and medium runner export (16) are according to the corresponding screw thread of internal thread valve standard processing.

6. A high-end compact solenoid valve with zero leakage as claimed in claim 3 wherein: the knife tip surface of the valve knife edge (14) adopts a small arc smooth transition, the small arc is tangent with the middle hole and the outer inclination, and the valve knife edge (14) is tightly attached to the knife edge sealing piece (18).

7. A high-end compact solenoid valve with zero leakage as claimed in claim 1 wherein: valve gap (19) and pipe (20) are argon arc welding, and pipe (20) and quiet iron core (21) are argon arc welding, and it separates magnetic ring (22) and is the riveting tight fit with quiet iron core (21), and valve gap (19) terminal surface is equipped with the sealing washer mounting groove, and cavity (13) before cavity and the cavity of valve body (1) top form sealed jointly in its inner chamber.

8. A high-end compact solenoid valve with zero leakage as claimed in claim 1 wherein: the coil positioning cover (7) is of a square opening box-shaped structure, the coil positioning cover (7) is matched with the appearance of the valve body (1), and two positioning columns are arranged above the coil positioning cover (7) and matched with small holes in the electromagnetic coil component (8).

9. A high-end compact solenoid valve with zero leakage as claimed in claim 1 wherein: the movable iron core (17) and the knife edge sealing piece (18) are assembled in an embedded mode, a through hole is formed in the center of the movable iron core (17), a small hole is formed in the side edge of the movable iron core (17) and communicated with the central hole, and the knife edge sealing piece (18) is formed by pressing a fluorine-containing rubber material structure.

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