CN218582401U - Valve element assembly and electromagnetic valve - Google Patents

Abstract

The application relates to a valve core assembly and an electromagnetic valve, wherein the valve core assembly comprises a valve core and a sealing gasket, an assembly hole is formed in the valve core, the sealing gasket is installed in the assembly hole, and two ends of the sealing gasket are connected with the valve core in a riveting mode. The application provides a case subassembly because sealed the installing in the mounting hole to sealed both ends of filling up all are connected with the case riveting, consequently, sealed both ends of filling up are all firmly fixed, make sealed difficult emergence of filling up not hard up, thereby have reduced the condition that sealed the pad drops. Especially for the sealing gasket with longer length, the anti-falling effect on the sealing gasket is more obvious.

Description

Valve element assembly and electromagnetic valve

Technical Field

The application relates to the technical field of valves, in particular to a valve core assembly and an electromagnetic valve.

Background

The valve core assembly of the electromagnetic valve usually comprises a valve core and a sealing gasket, only one end of the sealing gasket is riveted with the valve core, the connection is not firm enough, and particularly for the sealing gasket with longer length, the sealing gasket is easy to fall off.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is desirable to provide a valve core assembly and a solenoid valve that can reduce the separation of a gasket.

The valve core assembly comprises a valve core and a sealing gasket, wherein an assembly hole is formed in the valve core, the sealing gasket is arranged in the assembly hole, and two ends of the sealing gasket are riveted with the valve core.

The application provides a case subassembly because sealed the installing in the mounting hole to sealed both ends of filling up all are connected with the case riveting, consequently, sealed both ends of filling up are all firmly fixed, make sealed difficult emergence of filling up not hard up, thereby have reduced the condition that sealed the pad drops. Especially for the sealing gasket with longer length, the anti-falling effect on the sealing gasket is more obvious.

In one embodiment, the riveting parts at the two ends of the sealing gasket are side walls of the sealing gasket close to the end face, one end of the sealing gasket is located in the assembly hole, and the other end of the sealing gasket extends out of one side of the assembly hole.

The riveting position is the lateral wall that sealed pad is close to the terminal surface in this embodiment, and not the terminal surface of sealed pad, consequently, the riveting firm in connection between case and the sealed pad, the sealed condition of rocking along the pilot hole axial that is difficult to appear to can not influence the sealed effect of sealed pad terminal surface, guaranteed the effective sealing to the valve port.

In one embodiment, the pilot hole includes along the sealed axial of filling up sets gradually and the first hole that communicates, second hole and third hole, the internal diameter in first hole is greater than the internal diameter in second hole, the internal diameter in second hole is less than the internal diameter in third hole, sealed the pad including the first post section and the second post section that are connected, the external diameter of first post section is greater than the external diameter of second post section, first post section wears to locate first hole, just first post section is kept away from the one end of second post section stretches out in first hole, the second post section wears to locate the second hole, and stretches into third hole.

So, the lateral wall and the case riveting of sealed pad near both ends terminal surface of being convenient for are connected.

In one embodiment, the first hole is connected with one end of the second hole to form a first step surface, and one end of the first column section close to the second column section abuts against the first step surface.

So, first step plays spacing and the effect of location to the assembly of sealed pad, has made things convenient for the assembly of sealed pad to firm in connection between sealed pad and the case after the assembly, stability is good.

In one embodiment, the outer wall of the first column section is provided with a second step surface, a first inclined surface is arranged between the second step surface and the outer wall of the first column section, the end of the valve core is provided with a first riveting portion, and the first riveting portion is riveted on the first inclined surface.

Set up first inclined plane and increased the area of contact between first riveting portion and the sealed pad, be favorable to first riveting portion and first inclined plane riveting to be connected, and firm in connection between first riveting portion and the sealed pad after the riveting.

In one embodiment, the outer wall of the second column section is provided with a riveting groove, the valve core is provided with a second riveting portion, and the second riveting portion is clamped into the riveting groove through press riveting to be in riveted connection with the sealing gasket.

Because the outer wall of second post section is equipped with the riveting groove, consequently, second riveting portion warp the card and can realize being connected with sealed riveting of filling up in the riveting inslot, need not set up the rivet, and the structure is simpler, and the assembly process is also simpler.

In one embodiment, the riveting groove is an annular groove, the second riveting portion is an annular rib arranged at a joint of the second hole and the third hole, and the annular rib is arranged around the outside of the riveting groove.

So, second riveting portion encircles in the second post section outside, can fix the second post section firmly after the riveting for the structure is more stable.

In one embodiment, the riveting groove is provided with a second inclined surface inclined relative to the axial direction of the sealing gasket, and the second riveting portion is riveted on the second inclined surface.

Set up the second inclined plane and increased the area of contact between second riveting portion and the sealed pad, be favorable to second riveting portion and second inclined plane riveting to be connected, and after the riveting between second riveting portion and the sealed pad firm in connection.

In one embodiment, the outer wall of the valve core is provided with an annular groove, and the valve core is also provided with a balance hole which is communicated with the third hole and the groove.

The arrangement of the groove facilitates the arrangement of a balance hole in the valve core.

The electromagnetic valve comprises a valve body and the valve core assembly, wherein the valve core assembly is arranged in the valve body.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a cross-sectional view of a valve cartridge assembly according to an embodiment of the present application;

FIG. 2 is an exploded view of the valve cartridge assembly of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is an enlarged view of a portion of FIG. 1 at B;

fig. 5 is a sectional view of a solenoid valve according to an embodiment of the present application.

Reference numerals: 1. a valve core assembly; 10. a valve core; 11. an assembly hole; 111. a first hole; 112. a second hole; 113. a third aperture; 114. a first step surface; 12. a first riveting portion; 13. a second riveting portion; 14. a groove; 15. a balance hole; 20. a gasket; 21. a first column section; 211. a second step surface; 212. a first inclined plane; 22. a second column section; 221. riveting the groove; 222. a second inclined plane; 2. a valve body.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used in the description of the present application are for illustrative purposes only and do not represent the only embodiments.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or may simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

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 application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the present application, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, the present application provides a valve core assembly 1, which includes a valve core 10 and a gasket 20, wherein a fitting hole 11 is formed in the valve core 10, the gasket 20 is installed in the fitting hole 11, and two ends of the gasket 20 are riveted to the valve core 10. Because the sealing gasket 20 is installed in the assembly hole 11, and both ends of the sealing gasket 20 are riveted with the valve core 10, both ends of the sealing gasket 20 are firmly fixed, so that the sealing gasket 20 is not easy to loosen, and the situation that the sealing gasket 20 falls off is reduced. Particularly, in the case of the gasket 20 having a long length, the anti-drop effect on the gasket 20 is more remarkable.

Further, the riveted portions at both ends of the gasket 20 are side walls of the gasket 20 near the end surfaces. Therefore, the valve core 10 and the sealing gasket 20 are firmly riveted, and the situation that the sealing gasket 20 axially shakes along the assembly hole 11 is not easy to occur. Moreover, because the valve core assembly 1 usually seals the valve port of the valve body 2 by using the end surface of the gasket 20, the riveting portion in this embodiment is the sidewall of the gasket 20 close to the end surface, rather than the end surface of the gasket 20, and therefore, the sealing effect of the end surface of the gasket 20 is not affected, and effective sealing of the valve port is ensured.

In this embodiment, one end of the gasket 20 is located in the mounting hole 11, and the other end of the gasket extends out from one side of the mounting hole 11, so that the gasket 20 is riveted with the valve element 10, and the end of the gasket 20 extending out of the mounting hole 11 is convenient for sealing the valve port of the valve body 2.

Referring to fig. 2, the mounting hole 11 further includes a first hole 111, a second hole 112 and a third hole 113 sequentially disposed and communicated along an axial direction of the gasket 20, an inner diameter of the first hole 111 is larger than an inner diameter of the second hole 112, and an inner diameter of the second hole 112 is smaller than an inner diameter of the third hole 113, so that the mounting hole 11 has an i-shaped cross section and a simple structure. The seal 20 comprises a first column section 21 and a second column section 22 connected, the first column section 21 having an outer diameter larger than the outer diameter of the second column section 22. The first column section 21 penetrates through the first hole 111, one end, away from the second column section 22, of the first column section 21 extends out of the first hole 111, and the second column section 22 penetrates through the second hole 112 and extends into the third hole 113. Therefore, the side walls of the sealing gaskets 20 close to the end surfaces of the two ends are convenient to rivet and connect with the valve core 10.

Further, the end of the first hole 111 connected to the second hole 112 forms a first step surface 114, and the end of the first column section 21 close to the second column section 22 abuts against the first step surface 114. Therefore, the first step surface 114 has the functions of limiting and positioning the assembly of the sealing gasket 20, so that the assembly of the sealing gasket 20 is facilitated, and after the assembly, the connection between the sealing gasket 20 and the valve core 10 is firm, and the stability is good.

Referring to fig. 2, the outer wall of the first column section 21 is provided with a second step surface 211, and a first inclined surface 212 is provided between the second step surface 211 and the outer wall of the first column section 21. The end of the valve core 10 is provided with a first riveting portion 12, and the first riveting portion 12 is riveted on the first inclined surface 212. The first inclined surface 212 is arranged to increase the contact area between the first riveting portion 12 and the sealing gasket 20, so that the riveting connection between the first riveting portion 12 and the first inclined surface 212 is facilitated, and the first riveting portion 12 and the sealing gasket 20 are firmly connected after riveting. Fig. 1 and 3 are schematic structural diagrams before riveting, in which the first riveting portion 12 is deformed to be closely attached to the first inclined surface 212 after riveting. It can be understood that, during the riveting process, the first riveting portion 12 is bent toward the fitting hole 11 and pressed against the first inclined surface 212, so as to press the gasket 20, so that the end surface of the first column section 21 of the gasket 20 is tightly abutted against the first step surface 114, and thus the connection between the first column section 21 and the valve element 10 is firm after the riveting.

Referring to fig. 1, 2 and 4, the outer wall of the second column section 22 is provided with a riveting groove 221, the valve core 10 is provided with a second riveting portion 13, and the second riveting portion 13 is clamped into the riveting groove 221 by press riveting to be riveted with the sealing gasket 20. Because the outer wall of the second column section 22 is provided with the riveting groove 221, the second riveting portion 13 deforms and is clamped into the riveting groove 221, riveting connection with the sealing gasket 20 can be achieved, rivets do not need to be arranged, the structure is simpler, and the assembly process is simpler.

Further, the riveting groove 221 is an annular groove, the second riveting portion 13 is an annular rib disposed at a joint of the second hole 112 and the third hole 113, and the annular rib is disposed around the outside of the riveting groove 221. So, second riveting portion 13 surrounds in the second post section 22 outside, can fix second post section 22 firmly after the riveting for the structure is more stable.

The rivet groove 221 is provided with a second inclined surface 222 inclined with respect to the axial direction of the gasket 20, and the second rivet portion 13 is riveted to the second inclined surface 222. The second inclined surface 222 is arranged to increase the contact area between the second riveting portion 13 and the sealing gasket 20, so that the riveting connection between the second riveting portion 13 and the second inclined surface 222 is facilitated, and the second riveting portion 13 and the sealing gasket 20 are firmly connected after riveting. Fig. 1 and 4 are schematic structural diagrams before riveting, in which after riveting, the second riveting portion 13 deforms and extends into the riveting groove 221, and the second riveting portion 13 is attached to the second inclined surface 222. It can be understood that, during the riveting process, the second riveting portion 13 is bent toward the riveting groove 221 and pressed on the second inclined surface 222, so that the connection between the second column section 22 and the valve core 10 is firm after riveting.

The outer wall of the valve core 10 is provided with an annular groove 14, a balance hole 15 is further arranged in the valve core 10, and the balance hole 15 is communicated with the third hole 113 and the groove 14. The provision of the recess 14 facilitates the provision of a balance hole 15 in the valve spool 10. In this embodiment, the balance hole 15 extends in the axial direction of the spool 10, and the structure is very simple and easy to machine. When this case subassembly 1 is applied to the solenoid valve, case subassembly 1 is installed in valve body 2, and valve body 2 has a plurality of pipelines, and balanced hole 15 is used for the different pipelines of intercommunication valve body 2 to the atmospheric pressure in the balanced corresponding pipeline.

Referring to fig. 5, the present application provides a solenoid valve, which includes a valve body 2 and a valve core assembly 1 as described above, wherein the valve core assembly 1 is disposed in the valve body 2.

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 express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims (10)

1. The valve core assembly is characterized by comprising a valve core (10) and a sealing gasket (20), wherein an assembly hole (11) is formed in the valve core (10), the sealing gasket (20) is installed in the assembly hole (11), and two ends of the sealing gasket (20) are riveted with the valve core (10).

2. The valve core assembly as claimed in claim 1, wherein the riveting positions of the two ends of the sealing gasket (20) are the side walls of the sealing gasket (20) close to the end surfaces,

one end of the sealing gasket (20) is positioned in the assembly hole (11), and the other end of the sealing gasket extends out of one side of the assembly hole (11).

3. The spool assembly according to claim 2, characterized in that the fitting hole (11) comprises a first hole (111), a second hole (112) and a third hole (113) which are arranged in the axial direction of the gasket (20) and communicate with each other in this order, the inner diameter of the first hole (111) is larger than that of the second hole (112), the inner diameter of the second hole (112) is smaller than that of the third hole (113),

the sealing gasket (20) comprises a first column section (21) and a second column section (22) which are connected, the outer diameter of the first column section (21) is larger than that of the second column section (22),

the first column section (21) penetrates through the first hole (111), and one end, far away from the second column section (22), of the first column section (21) extends out of the first hole (111),

the second section (22) penetrates through the second hole (112) and extends into the third hole (113).

4. The spool assembly of claim 3, wherein the end of the first bore (111) connecting the second bore (112) forms a first step surface (114), and the end of the first column section (21) adjacent the second column section (22) abuts against the first step surface (114).

5. The valve core assembly of claim 3, wherein the outer wall of the first column section (21) is provided with a second step surface (211), a first inclined surface (212) is arranged between the second step surface (211) and the outer wall of the first column section (21),

the end part of the valve core (10) is provided with a first riveting part (12), and the first riveting part (12) is riveted on the first inclined plane (212).

6. The valve core assembly according to claim 3, characterized in that the outer wall of the second column section (22) is provided with a riveting groove (221), the valve core (10) is provided with a second riveting portion (13), and the second riveting portion (13) is clamped into the riveting groove (221) through press riveting to be in riveting connection with the sealing gasket (20).

7. The valve core assembly according to claim 6, wherein the riveting groove (221) is an annular groove, and the second riveting portion (13) is an annular rib arranged at the joint of the second hole (112) and the third hole (113), and the annular rib is arranged around the outside of the riveting groove (221).

8. The valve core assembly according to claim 6 or 7, characterized in that the riveting groove (221) is provided with a second inclined surface (222) inclined relative to the axial direction of the sealing gasket (20), and the second riveting portion (13) is riveted on the second inclined surface (222).

9. The valve core assembly according to claim 3, characterized in that the outer wall of the valve core (10) is provided with an annular groove (14), and a balance hole (15) is further arranged in the valve core (10), wherein the balance hole (15) is communicated with the third hole (113) and the groove (14).

10. A solenoid valve, characterized by comprising a valve body (2) and a valve core assembly (1) according to any one of claims 1 to 9, said valve core assembly (1) being arranged inside said valve body (2).

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