CN214093241U - Electromagnetic valve - Google Patents

Abstract

The utility model discloses a solenoid valve, which comprises a main valve body, an auxiliary valve body, a supporting ejector rod and a sealing lever shaft; the auxiliary valve body is provided with a through hole, the sealing lever shaft part penetrates through the through hole and extends into the main valve body, the part of the sealing lever shaft arranged in the auxiliary valve body is in contact with the spherical surface of the supporting ejector rod, and the part of the sealing lever shaft arranged in the main valve body can be matched with the auxiliary valve body to plug the through hole; the main valve body is provided with an inlet pipe, a first outlet pipe and a second outlet pipe, and the first outlet pipe and the second outlet pipe are respectively arranged at two sides of the sealing lever shaft; be equipped with iron core subassembly on the assistance valve body, iron core subassembly can drive sealed lever axle and rotate around supporting ejector pin to first outlet pipe of selective shutoff or second outlet pipe. The utility model discloses can prevent that iron core subassembly from polluting the medium, and avoid blocking dead situation because of the iron core subassembly card goes into the impurity foreign matter in the medium and takes place, simultaneously, sealed lever shaft is even with the stress of support ejector pin, and wearing and tearing are little, have the effect of prolonging the whole life-span of this solenoid valve.

Description

Electromagnetic valve

Technical Field

The utility model belongs to the technical field of flow control is relevant, especially, relate to an electromagnetic valve.

Background

An Electromagnetic valve (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 control precision and flexibility can be ensured.

At present, an iron core assembly used for controlling medium flow on the existing electromagnetic valve is usually arranged on a flow channel of a medium, so that the medium can be directly contacted with a movable iron core, a spring and a fixed iron core in the iron core assembly, and the pollution of the iron core assembly on the medium can be caused, so that the electromagnetic valve is not suitable for being used in the food field; in addition, when the electromagnetic valve works, foreign matters and impurities contained in the medium can enter the iron core assembly, and the problem of iron core blocking is caused, so that the working reliability of the electromagnetic valve is reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a solenoid valve in order to solve the technical problems in the prior art.

The electromagnetic valve comprises a main valve body, an auxiliary valve body fixedly connected to the main valve body, a supporting ejector rod arranged in the auxiliary valve body and a sealing lever shaft; the auxiliary valve body is provided with a through hole, the part of the sealing lever shaft penetrates through the through hole and extends into the main valve body, the part of the sealing lever shaft, which is arranged in the auxiliary valve body, is in spherical contact with the supporting ejector rod so as to support the sealing lever shaft by the supporting ejector rod, and the part of the sealing lever shaft, which is arranged in the main valve body, can be matched with the auxiliary valve body so as to block the through hole; the main valve body is provided with an inlet pipe, a first outlet pipe and a second outlet pipe, and the first outlet pipe and the second outlet pipe are respectively arranged on two sides of the sealing lever shaft; and an iron core assembly is arranged on the auxiliary valve body and can drive the sealing lever to axially wind the support ejector rod to move so as to selectively block the first outlet pipe or the second outlet pipe.

As the utility model discloses an optimal scheme, the rigid coupling has the support spheroid on the support ejector pin, the epaxial matching in that is equipped with of sealing lever support spheroidal convex part of buckling, sealing lever axle passes through buckle the convex part with the cooperation between the support spheroid assemble with the mode of sphere contact in support the ejector pin.

As a preferable aspect of the present invention, a portion of the sealing lever shaft disposed in the main valve body is wrapped with a sealing rubber, and the sealing lever shaft can drive the sealing rubber to selectively block the first outlet pipe or the second outlet pipe; wherein the sealing rubber coating part is arranged at a position between the main valve body and the auxiliary valve body in a tight fit mode.

As the preferred scheme of the utility model, the embedded axostylus axostyle that is equipped with of sealed rubber coating.

As a preferred embodiment of the present invention, the inlet end of the first outlet pipe and/or the inlet end of the second outlet pipe is inserted into the main valve body, the sealing coating is provided with a sealing inclined plane matching with the inlet end of the first outlet pipe and/or the inlet end of the second outlet pipe, the sealing lever shaft can drive the sealing inclined plane of the sealing coating to selectively abut against the inlet end of the first outlet pipe or the inlet end of the second outlet pipe, so as to block the first outlet pipe or the second outlet pipe.

As the utility model discloses an optimal scheme, the iron core subassembly include the joint in the movable iron core of sealed lever axle, relative the fixed iron core that movable iron core set up, locate movable iron core with reset spring between the fixed iron core and cup joint in movable iron core reaches the magnetism isolating pipe of fixed iron core, be connected with the valve gap on assisting the valve body with dismantling, the valve gap cup joint in magnetism isolating pipe, with inciting somebody to action magnetism isolating pipe compresses tightly spacing in assist the valve body.

As a preferred embodiment of the present invention, the movable iron core is provided with an extending convex portion, and a step surface is formed between the extending convex portion and the movable iron core; the sealing lever shaft is arranged at the end part in the auxiliary valve body, a clamping groove is formed in the end part, and the extending convex part is transversely clamped into the clamping groove of the sealing lever shaft.

As the utility model discloses an optimized scheme, compression spring and bush have been cup jointed on the movable core, compression spring assemble with the mode of precompression in the step face with between the bush, just compression spring can push against the bush supports to press in sealed lever is epaxial.

As the utility model discloses an optimized scheme, assist the valve body and be connected with the bottom with dismantling, the rigid coupling has retaining ring on the bottom, support the ejector pin part insert extremely in the retaining ring.

As the utility model discloses an optimized scheme, be equipped with two on the assistance valve body and connect the flange, main valve body part inserts to two connect in the flange to with running through two connect the flange and reach the connecting axle of the main valve body carries out spacing fixed.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the utility model provides an electromagnetic valve, through with the internal medium passageway of main valve, with be used for controlling the iron core subassembly of the main valve body and isolate in two independent cavities, avoid leading-in medium and the contact of iron core subassembly to the main valve body with this, make this electromagnetic valve during operation can prevent that iron core subassembly from polluting the medium, and avoid the corruption of medium to the iron core, make this electromagnetic valve can be applicable to the flow control to the medium that has corrosivity, and avoid blocking the dead situation emergence because of the impurity foreign matter card in the medium of iron core subassembly card, make this electromagnetic valve can be applicable to the flow control of medium in the food field, and improve the reliability of this electromagnetic valve work; meanwhile, the electromagnetic valve can realize the selective plugging of the sealing lever shaft to the first outlet pipe and the second outlet pipe by utilizing the lever principle during the working process, and the sealing lever shaft is assembled on the supporting ejector rod in a spherical contact mode, so that the stress of the sealing lever shaft is concentrated on the supporting ejector rod, the stress is uniform, the abrasion is small, and the electromagnetic valve has the effect of prolonging the whole service life of the electromagnetic valve.

Drawings

Fig. 1 is a schematic structural diagram of a solenoid valve according to an embodiment of the present invention.

Fig. 2 is an exploded view of a solenoid valve according to an embodiment of the present invention.

Fig. 3 is a sectional view of a solenoid valve according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of the middle seal lever shaft of the present invention.

Fig. 5 is a schematic structural view of the middle supporting post rod of the present invention.

Wherein, 10, the main valve body; 11. an inlet pipe; 12. a first outlet pipe; 13. a second outlet pipe; 20. an auxiliary valve body; 21. a through hole; 22. connecting the convex plate; 23. a valve cover; 30. supporting the ejector rod; 31. a support sphere; 40. sealing the lever shaft; 401. a card slot; 41. sealing and encapsulating; 411. sealing the convex ring; 412. sealing the inclined plane; 42. a shaft plate; 43. bending the convex part; 51. a movable iron core; 511. an extending projection; 512. a step surface; 52. fixing the iron core; 53. a return spring; 54. a magnetism isolating pipe; 55. a compression spring; 56. a bushing; 60. a bottom cover; 61. fixing a retainer ring; 101. a connecting shaft; 102. and (4) opening a retainer ring.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1-5, a solenoid valve according to an embodiment of the present invention includes a main valve body 10, an auxiliary valve body 20 fixed to the main valve body 10, a supporting rod 30 disposed in the auxiliary valve body 20, and a sealing lever shaft 40 engaged with the supporting rod 30.

In the present embodiment, the auxiliary valve body 20 of the present embodiment is provided with a through hole 21, a part of the sealing lever shaft 40 penetrates through the through hole 21 and extends into the main valve body 10, wherein a part of the sealing lever shaft 40, which is disposed in the main valve body 10, can be matched with the auxiliary valve body 20 to block the through hole 21, so that the main valve body 10 and the auxiliary valve body 20 are isolated into two independent cavities, and a part of the sealing lever shaft 40, which is disposed in the auxiliary valve body 20, is in spherical contact with the support post rod 30 to support the sealing lever shaft 40 with the support post rod 30. That is, the contact surface of the support jack 30 for supporting the seal lever shaft 40 is provided as a spherical surface.

Wherein, the main valve body 10 has an inlet pipe 11, a first outlet pipe 12 and a second outlet pipe 13, the first outlet pipe 12 and the second outlet pipe 13 are respectively arranged at two sides of the sealing lever shaft 40; the auxiliary valve body 20 is provided with a core assembly which can drive the sealing lever shaft 40 to move around the support mandril 30 so as to selectively block the first outlet pipe 12 or the second outlet pipe 13. That is, when the solenoid valve of the present embodiment operates, the iron core assembly drives the movement of the sealing lever shaft 40 by using the principle of the lever, and the sealing lever shaft 40 selectively blocks the first outlet pipe 12 or the second outlet pipe 13, so as to control the conduction between the inlet pipe 11 and the second outlet pipe 13 and between the inlet pipe 11 and the first outlet pipe 12, and further, to control the flow rate of the medium introduced from the inlet pipe 11 into the main valve body 10. It should be noted that the seal lever shaft 40 is driven by the core assembly, and specifically, the seal lever shaft 40 is moved by the lever.

Specifically, the inlet end of the first outlet pipe 12 and/or the inlet end of the second outlet pipe 13 of the present embodiment are inserted into the main valve body 10, and the sealing lever shaft 40 can selectively abut against the inlet end of the first outlet pipe 12 or the inlet end of the second outlet pipe 13 when rotating around the support ram 30 to block the first outlet pipe 12 or the second outlet pipe 13, so that the sealing lever shaft 40 blocks the first outlet pipe 12 or the second outlet pipe 13 when the sealing lever shaft 40 acts on the first outlet pipe 12 or the second outlet pipe 13.

The part of the sealing lever shaft 40 in the main valve body 10 provided by the embodiment is wrapped by a sealing rubber 41, and the sealing lever shaft 40 can drive the sealing rubber 41 to selectively block the first outlet pipe 12 or the second outlet pipe 13, that is, the sealing lever shaft 40 in the embodiment seals the first outlet pipe 12 or the second outlet pipe 13 with the sealing rubber 41. The sealing rubber 41 is partially arranged between the main valve body 10 and the auxiliary valve body 20 in a tight fit manner, and the assembly gap between the through hole 21 of the auxiliary valve body 20 and the sealing lever shaft 40 can be sealed by the sealing rubber 41. That is, the present embodiment can realize the sealing of the assembly gap between the through hole 21 on the auxiliary valve body 20 and the sealing lever shaft 40 by the sealing lever shaft 40 surrounding the position of the through hole 21 on the auxiliary valve body 20, and the sealing rubber 41 is partially disposed at the position between the main valve body 10 and the auxiliary valve body 20 in a tight fit manner, so as to realize the assembly connection between the sealing rubber 41 and the main valve body 10 and the auxiliary valve body 20.

Further, the sealing rubber 41 of the present embodiment is provided with a sealing convex ring 411 at a portion extruded by the auxiliary valve body 20 and the main valve body 10, and the sealing convex ring 411 partially extends into the auxiliary valve body 20 to further ensure the assembly sealing between the sealing rubber 41 and the auxiliary valve body 20.

As a preferable scheme of the present invention, the sealing rubber 41 of the present embodiment is provided with a sealing inclined plane 412 matched with the inlet end of the first outlet pipe 12 and/or the inlet end of the second outlet pipe 13, and the sealing lever shaft 40 can drive the sealing inclined plane 412 of the sealing rubber 41 to selectively abut against the inlet end of the first outlet pipe 12 or the inlet end of the second outlet pipe 13 to block the first outlet pipe 12 or the second outlet pipe 13, so as to improve the fitting degree between the sealing rubber 41 and the inlet end of the first outlet pipe 12 or the inlet end of the second outlet pipe 13, thereby ensuring the sealing effect on the first outlet pipe 12 or the second outlet pipe when the sealing rubber 41 acts on the inlet end of the first outlet pipe 12 or the inlet end of the second outlet pipe 13.

Two connecting convex plates 22 are arranged on the auxiliary valve body 20 of the present embodiment, the main valve body 10 is partially inserted into the two connecting convex plates 22, and is limited and fixed by a connecting shaft 101 penetrating through the two connecting convex plates 22 and the main valve body 10, so that the main valve body 10 and the auxiliary valve body 20 are assembled and fixed.

Specifically, one end of the connecting shaft 101 of the present embodiment sequentially passes through one of the connecting convex plates 22, the main valve body 10, and the other connecting convex plate 22, and is limited by the split washer 102, so that the connecting shaft 101 limits and fixes the position between the two connecting convex plates 22 on the main valve body 10 and the auxiliary valve body 20. The number of the connecting shafts 101 is two, and the two connecting shafts 101 are respectively arranged on two sides of the main valve body 10. Of course, it should be noted that the manner of assembling and connecting the main valve body 10 and the auxiliary valve body 20 is not limited to that shown in the drawings, and for those skilled in the art, the two connecting convex plates 22 may be provided on the main valve body 10, and the auxiliary valve body 20 is partially inserted into a position between the two connecting convex plates 22 of the main valve body, and the limit fixation between the main valve body 10 and the auxiliary valve body 20 is not limited to the manner that the connecting shaft 101 penetrates through, and the limit fixation may be performed by adopting a mutually-matched snap-fit manner, which will not be described herein.

In the present embodiment, the shaft plate 42 is embedded in the sealing rubber 41, so that the present embodiment can use the shaft plate 42 to support the sealing rubber 41, thereby ensuring the sealing of the first outlet pipe 12 or the second outlet pipe 13 when the sealing rubber 41 acts on the first outlet pipe 12 or the second outlet pipe 13. The sealing lever shaft 40 and the shaft plate 42 are integrally formed by injection molding of the sealing rubber 41, and the sealing lever shaft is simple in structure and low in production cost.

In the present embodiment, the support rod 30 is fixed with the support ball 31, the seal lever shaft 40 is provided with the bent convex portion 43 matching the support ball 31, and the seal lever shaft 40 is rotatably connected to the support rod 30 by the engagement between the bent convex portion 43 and the support ball 31. That is, the supporting ejector rod 30 on the solenoid valve of the present embodiment is in spherical contact with and cooperates with the sealing lever shaft 40, which has an effect of improving the supporting and positioning stability of the sealing lever shaft 40, and further has an effect of improving the working stability of the solenoid valve; meanwhile, the spherical surface contact between the support push rod 30 and the seal lever shaft 40 can reduce the surface stress and the surface abrasion between the support push rod 30 and the seal lever shaft 40, and the electromagnetic valve has the function of prolonging the service life of the support push rod 30 and the seal lever shaft 40.

It can be understood that the core assembly of the present embodiment includes a movable core 51 connected to the seal lever shaft 40, a fixed core 52 disposed opposite to the movable core 51, a return spring 53 disposed between the movable core 51 and the fixed core 52, and a magnetism isolating tube 54 sleeved on the movable core 51 and the fixed core 52. Wherein, the valve gap 23 is detachably connected to the auxiliary valve body 20, and the valve gap 23 is sleeved on the magnetism isolating pipe 54 to compress and limit the magnetism isolating pipe 54 on the auxiliary valve body 20, thereby realizing the assembly connection of the iron core assembly on the auxiliary valve body 20. It should be noted that the solenoid valve of the present embodiment further includes a winding coil (not shown) wound around the magnetism isolating tube 54, and the movement of the movable iron core 51 toward the fixed iron core 52 by compressing the return spring 53 through a magnetic field generated after the winding coil is energized, and the movement of the movable iron core 51 toward the direction away from the fixed iron core 52 is realized on the basis of the elastic deformation reset of the compressed return spring 53 without generating a magnetic field after the winding coil is de-energized, which will not be described herein.

In the present embodiment, the movable iron core 51 of the present embodiment is provided with an extending protrusion 511, a step surface 512 is formed between the extending protrusion 511 and the movable iron core 51, a slot 401 is formed on an end portion of the sealing lever shaft 40 disposed in the auxiliary valve body 20, the extending protrusion 511 is transversely clamped into the slot 401 of the sealing lever shaft 40, so as to realize the assembly connection between the movable iron core 51 and the sealing lever shaft 40, so that the movable iron core 51 can realize the driving of pushing and pulling back the sealing lever shaft 40 while moving, and thus, the driving of the movement of the sealing lever shaft 40 with a portion of the sealing lever shaft 40 abutting against the support post rod 30 as a fulcrum is realized.

Further, the compression spring 55 and the bushing 56 are sleeved on the movable iron core 51 of the present embodiment, the compression spring 55 is assembled between the step surface 512 and the bushing 56 in a pre-compression manner, and the compression spring 55 can push the bushing 56 to press against the seal lever shaft 40, so that the movable iron core 51 and the seal lever shaft 40 are always in close contact, thereby ensuring that the movable iron core 51 can realize the rotation driving of the seal lever shaft 40 while moving.

In addition, the auxiliary valve body 20 of the present embodiment is detachably connected to a bottom cover 60, a fixed retainer ring 61 is fixedly connected to the bottom cover 60, and the support post rod 30 is partially inserted into the fixed retainer ring 61, so as to achieve the assembly connection of the support post rod 30; the bottom cover 60 is detachably connected to the auxiliary valve body 20, so that the solenoid valve is integrally assembled, and the bottom cover 60 can be assembled to the auxiliary valve body 20 in a snap-fit manner.

To sum up, the utility model provides an electromagnetic valve, through with the internal medium passageway of main valve, with be used for controlling the iron core subassembly of the main valve body isolated in two independent cavities, thereby avoid leading-in medium and the contact of iron core subassembly to the main valve body, make this electromagnetic valve during operation can prevent that iron core subassembly from polluting the medium, and avoid the corruption of medium to the iron core, make this electromagnetic valve can be applicable to the flow control to the medium that has corrosivity, and avoid taking place because the iron core subassembly blocks the dead situation of the impurity foreign matter in the medium and jamming, make this electromagnetic valve can be applicable to the flow control of medium in the food field, and improve the reliability of this electromagnetic valve work; meanwhile, when the electromagnetic valve works, the sealing lever shaft can be selectively plugged for the first outlet pipe and the second outlet pipe by utilizing the lever principle, stress is concentrated on the supporting ejector rod, the stress is uniform, the abrasion is small, and the electromagnetic valve has the effect of prolonging the whole service life of the electromagnetic valve.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A kind of electromagnetic valve, characterized by, including the main valve body, the auxiliary valve body fixedly connected to said main valve body, locate supporting the knockout pin, and sealed lever shaft in said auxiliary valve body; the auxiliary valve body is provided with a through hole, the part of the sealing lever shaft penetrates through the through hole and extends into the main valve body, the part of the sealing lever shaft, which is arranged in the auxiliary valve body, is in spherical contact with the supporting ejector rod so as to support the sealing lever shaft by the supporting ejector rod, and the part of the sealing lever shaft, which is arranged in the main valve body, can be matched with the auxiliary valve body so as to block the through hole; the main valve body is provided with an inlet pipe, a first outlet pipe and a second outlet pipe, and the first outlet pipe and the second outlet pipe are respectively arranged on two sides of the sealing lever shaft; and an iron core assembly is arranged on the auxiliary valve body and can drive the sealing lever to axially wind the support ejector rod to move so as to selectively block the first outlet pipe or the second outlet pipe.

2. The electromagnetic valve according to claim 1, wherein a support ball is fixedly connected to the support plunger, a bent protrusion matching with the support ball is provided on the seal lever shaft, and the seal lever shaft is assembled to the support plunger in a spherical contact manner by the fit between the bent protrusion and the support ball.

3. The solenoid valve of claim 1 wherein the portion of said sealing lever shaft disposed within said main valve body is wrapped with a sealing overmold, said sealing lever shaft capable of driving said sealing overmold to selectively occlude said first outlet conduit or said second outlet conduit; wherein the sealing rubber coating part is arranged at a position between the main valve body and the auxiliary valve body in a tight fit mode.

4. The solenoid valve of claim 3 wherein said sealing overmold has a shaft plate embedded therein.

5. The electromagnetic valve according to claim 3, wherein the inlet end of the first outlet pipe and/or the inlet end of the second outlet pipe is inserted into the main valve body, the sealing rubber coating is provided with a sealing inclined plane matched with the inlet end of the first outlet pipe and/or the inlet end of the second outlet pipe, and the sealing lever shaft can drive the sealing rubber coating to selectively abut against the inlet end of the first outlet pipe or the inlet end of the second outlet pipe so as to block the first outlet pipe or the second outlet pipe.

6. The electromagnetic valve according to claim 1, wherein the core assembly comprises a movable core fastened to the sealing lever shaft, a fixed core disposed opposite to the movable core, a return spring disposed between the movable core and the fixed core, and a magnetism isolating tube sleeved on the movable core and the fixed core, the auxiliary valve body is detachably connected with a valve cover, and the valve cover is sleeved on the magnetism isolating tube to compress and limit the magnetism isolating tube to the auxiliary valve body.

7. The electromagnetic valve according to claim 6, wherein the movable iron core is provided with an extending convex part, and a step surface is formed between the extending convex part and the movable iron core; the sealing lever shaft is arranged at the end part in the auxiliary valve body, a clamping groove is formed in the end part, and the extending convex part is transversely clamped into the clamping groove of the sealing lever shaft.

8. The electromagnetic valve according to claim 7, wherein a compression spring and a bushing are sleeved on the movable iron core, the compression spring is assembled between the step surface and the bushing in a pre-compression manner, and the compression spring can push the bushing to press against the sealing lever shaft.

9. The electromagnetic valve according to claim 1, wherein the auxiliary valve body is detachably connected with a bottom cover, a fixed retainer ring is fixedly connected to the bottom cover, and the supporting ejector rod is partially inserted into the fixed retainer ring.

10. The electromagnetic valve according to claim 1, wherein the auxiliary valve body is provided with two connecting convex plates, and the main valve body is partially inserted into the two connecting convex plates and is limited and fixed by a connecting shaft penetrating through the two connecting convex plates and the main valve body.

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