CN210510369U

CN210510369U - Sealed electromagnetic valve

Info

Publication number: CN210510369U
Application number: CN201921620033.0U
Authority: CN
Inventors: 蒋宁
Original assignee: Changzhou Hanke Machinery Co Ltd
Current assignee: Changzhou Hanke Machinery Co Ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-05-12
Anticipated expiration: 2029-09-26

Abstract

The utility model belongs to the technical field of solenoid valves, concretely relates to sealed solenoid valve, including a valve body, a valve cover and an electromagnetic assembly, the electromagnetic assembly includes a coil and an iron core sleeved in the coil and capable of reciprocating along the coil in the axial direction, one end of the iron core in the valve body is provided with a valve core, an annular boss is arranged on the inner side wall of the valve body, a sealing element is arranged on the annular boss, and a placing groove for placing the sealing element is arranged on the bottom surface of the valve core; one end of the sealing element facing the placing groove is provided with a drainage part, and the drainage part is triangular. This sealed solenoid valve has the leakproofness that improves the solenoid valve, extension iron core life's effect.

Description

Sealed electromagnetic valve

Technical Field

The utility model belongs to the technical field of the solenoid valve, concretely relates to sealed solenoid valve.

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.

After the existing electromagnetic valve is used for a long time, a gap is easily formed between the valve core and the inner side wall of the valve body, so that a medium can enter the coil from the gap, the iron core can be abraded or corroded in different degrees, and the service life of the iron core is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sealed solenoid valve to solve the solenoid valve and use the back for a long time, there is the clearance between the inside wall of case and valve body, during leading to the medium to enter into the coil, influence iron core life's technical problem.

In order to solve the technical problem, the utility model provides a sealed electromagnetic valve, which comprises a valve body, a valve cover and an electromagnetic assembly, wherein the electromagnetic assembly comprises a coil and an iron core which is sleeved in the coil and can axially and repeatedly move along the coil, one end of the iron core, which is positioned in the valve body, is provided with a valve core,

an annular boss is arranged on the inner side wall of the valve body, a sealing element is arranged on the annular boss, and a placing groove for placing the sealing element is formed in the bottom surface of the valve core;

one end of the sealing element facing the placing groove is provided with a drainage part, and the drainage part is triangular.

Further: the bottom surface of the valve core is continuously provided with a plurality of arc-shaped blocking grooves, and the openings of the arc-shaped blocking grooves face the water inlet of the valve body.

Further: labyrinth grooves are formed in the outer sides of the annular bosses, and water-swelling strips are arranged in the labyrinth grooves.

Further: the inner side of the annular boss is provided with a positioning groove, the positioning groove is positioned on one side, away from the labyrinth groove, of the sealing element, and the bottom surface of the valve core is provided with a positioning block embedded into the positioning groove.

Further: the outer side wall of the valve core is provided with a ring and provided with a separation blade, the outer side of the separation blade is abutted against the inner side wall of the valve body, and the separation blade is provided with a plurality of along the axis direction of the valve core.

Further: the coil is provided with a static iron core detachably connected with the coil, and a spring is arranged between the static iron core and the iron core.

The beneficial effects of the utility model are that, the utility model discloses a sealed solenoid valve has adopted annular boss and sealing member, and the setting up of annular boss has changed the flow path of medium for the medium is difficult for directly entering into between the inside wall of case and valve body. Meanwhile, the triangular drainage part plays roles of drainage and guiding for the medium to flow into the space between the valve core and the inner side wall of the valve body more difficultly, the sealing performance of the electromagnetic valve is improved, and the service life of the iron core is prolonged.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a cross-sectional view of a preferred embodiment of the sealed solenoid valve of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is an enlarged view of a portion B in fig. 2.

In the figure:

1. a valve body; 2. a valve cover; 3. an electromagnetic assembly; 31. a coil; 32. an iron core; 33. a stationary iron core; 34. a spring; 4. a valve core; 41. an arc-shaped baffle groove; 42. positioning blocks; 5. an annular boss; 51. positioning a groove; 6. a placement groove; 7. a seal member; 71. a drainage part; 8. a labyrinth groove; 81. a water-swellable strip; 9. a baffle plate.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are 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.

FIG. 1 is a schematic view of a preferred embodiment of the sealed solenoid valve of the present invention;

as shown in fig. 1, the present embodiment provides a sealed electromagnetic valve, which includes a valve body 1, a valve cover 2 connected to the valve body 1, and an electromagnetic assembly 3 disposed on the valve body 1. The electromagnetic assembly 3 includes a coil 31 and an iron core 32 sleeved in the coil 31 and capable of axially reciprocating along the coil 31, and one end of the iron core 32 located in the valve body 1 is provided with a valve core 4. The valve body 1 is provided with an inlet and an outlet, the inlet and the outlet are positioned on the same axis and are positioned below the electromagnetic assembly 3.

As shown in fig. 1, the coil 31 is provided with a stationary core 33 detachably connected thereto, and a spring 34 is provided between the stationary core 33 and the core 32. The arrangement can position the iron core 32 in the axial direction, and meanwhile, the iron core 32 can be ensured not to shake in the operation process.

Figure 3 is an alternative cross-sectional view of the seal 7 of the present invention;

optionally, an annular boss 5 is integrally formed on the inner side wall of the valve body 1, a sealing element 7 is fixedly connected to the annular boss 5, and a placing groove 6 for placing the sealing element 7 is formed in the bottom surface of the valve core 4. The arrangement of the sealing element 7 and the placing groove 6 changes the flowing state of the medium, so that when the medium flows, the medium firstly needs to flow longitudinally, then flows transversely, and finally flows longitudinally, so that the medium is not easy to enter between the valve core 4 and the inner wall of the valve body 1 and then enters into the coil 31, and the service life of the iron core 32 is prolonged.

Fig. 3 is an alternative sectional view of the drainage portion 71 of the present invention;

optionally, the upper end of the sealing member 7 is fixedly connected with a drainage portion 71, the drainage portion 71 is triangular, and the placement groove 6 is matched with the drainage portion 71 in shape. Drainage portion 71 plays the effect of drainage and direction to the medium, and when the medium entered into standing groove 6 along sealing member 7, drainage portion 71 made the difficult upflow of medium to in difficult entering coil 31, can prevent that iron core 32 from rustting and corroding or receiving the hindrance in service, not only prolonged iron core 32's life, make the operation of this solenoid valve more stable moreover, simple structure.

FIG. 3 is an alternative cross-sectional view of labyrinth slot 8 of the present invention;

optionally, a labyrinth groove 8 is formed in the outer side of the annular boss 5, and a water-swellable strip 81 is arranged in the labyrinth groove 8. The water-swellable tape 81 swells when it encounters water, and seals the labyrinth groove 8 and the bottom of the valve element 4, thereby reducing the entrance of the medium into the placement groove 6.

Fig. 3 is an alternative sectional view of the positioning groove 51 and the positioning block 42 of the present invention;

optionally, the inner side of the annular boss 5 is provided with a positioning groove 51, and the bottom surface of the valve core 4 is fixedly connected with a positioning block 42 embedded in the positioning groove 51. In the process that the valve core 4 moves up and down, the positioning block 42 can be always embedded into the positioning groove 51, so that the valve core 4 is positioned, the axial installation precision of the valve core 4 is improved, and the sealing performance is improved.

Fig. 2 is an alternative cross-sectional view of the arcuate groove 41 of the present invention;

optionally, the bottom surface of the valve core 4 is continuously provided with a plurality of arc-shaped retaining grooves 41, the arc-shaped retaining grooves 41 are located on the outer side of the placing groove 6, and the openings of the arc-shaped retaining grooves 41 face the water inlet of the valve body 1. The arc-shaped baffle groove 41 can play a role in blocking splashed media, can also store a small amount of media, prolongs the time for the media to enter the coil 31, and prolongs the service life of the electromagnetic valve.

Fig. 2 is an alternative cross-sectional view of the baffle plate 9 of the present invention;

optionally, be equipped with separation blade 9 on the lateral wall of case 4, and separation blade 9 is provided with a plurality of along the axis direction of case 4, and the outside of a plurality of separation blades 9 is contradicted with the inside wall of valve body 1. All be formed with the recess between a plurality of separation blade 9, the medium need flow into another recess from a recess when entering into coil 31, and at this moment, the medium need constantly transversely, longitudinal flow, constantly changes the direction that the medium flows, and then makes the medium difficult to enter into coil 31, prolongs iron core 32's life.

In view of the above, it is desirable to provide,

the solenoid valve is at the in-process that uses, when iron core 32 drives case 4 up-and-down reciprocating motion, labyrinth groove 8 and water-swelling strip 81 set up the outside of annular boss 5 at first to seal, secondary seal is realized in setting up of sealing member 7 and drainage portion 71, locating slot 51 and locating piece 42 set up not only can realize the cubic and seal, can also play the effect of location to the axial displacement of case 4, the setting of separation blade 9 realizes the quartic seal, through sealing up the leakproofness that improves the solenoid valve layer upon layer, and then make the medium be difficult for entering into in coil 31, extension iron core 32's life.

All the parts of the devices selected in the present application are general standard parts or parts known to those skilled in the art, and the structures and principles thereof can be known to those skilled in the art through technical manuals or through routine experimental methods.

In the description of the embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways, and the above-described apparatus embodiments are merely illustrative.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a sealed solenoid valve, includes valve body (1), valve gap (2) and electromagnetism subassembly (3), electromagnetism subassembly (3) include coil (31) and cover establish in coil (31) and can follow coil (31) axial reciprocating motion's iron core (32), the one end that iron core (32) are located valve body (1) is provided with case (4), characterized by:

an annular boss (5) is arranged on the inner side wall of the valve body (1), a sealing element (7) is arranged on the annular boss (5), and a placing groove (6) for placing the sealing element (7) is formed in the bottom surface of the valve core (4);

one end, facing the placing groove (6), of the sealing element (7) is provided with a drainage portion (71), and the drainage portion (71) is triangular.

2. A sealing solenoid valve as claimed in claim 1 wherein:

the bottom surface of the valve core (4) is continuously provided with a plurality of arc-shaped blocking grooves (41), and the openings of the arc-shaped blocking grooves (41) face the water inlet of the valve body (1).

3. A sealing solenoid valve as claimed in claim 1 wherein:

labyrinth grooves (8) are formed in the outer sides of the annular bosses (5), and water-swellable strips (81) are arranged in the labyrinth grooves (8).

4. A sealing solenoid valve as claimed in claim 3 wherein:

a positioning groove (51) is formed in the inner side of the annular boss (5), the positioning groove (51) is located on one side, away from the labyrinth groove (8), of the sealing element (7), and a positioning block (42) embedded into the positioning groove (51) is arranged on the bottom surface of the valve core (4).

5. A sealing solenoid valve as claimed in claim 1 wherein:

the outer side wall of the valve core (4) is annularly provided with a separation blade (9), the outer side of the separation blade (9) is abutted to the inner side wall of the valve body (1), and the separation blade (9) is provided with a plurality of parts along the axis direction of the valve core (4).

6. A sealing solenoid valve as claimed in claim 1 wherein:

be equipped with rather than the quiet iron core (33) of dismantling the connection on coil (31), be equipped with spring (34) between quiet iron core (33) and iron core (32).