CN215410143U - Vacuum proportional valve sealing composite part - Google Patents

Abstract

The utility model discloses a vacuum proportional valve sealing composite part, which relates to the technical field of sealing parts and comprises a metal component and a rubber component which are bonded, wherein the metal component comprises a metal main body part and a metal buffer part, a U-shaped groove is arranged between the metal main body part and the metal buffer part, the metal main body part and the metal buffer part have the same thickness, the rubber component wraps the metal component, and the inner side of the rubber component is provided with a rubber closing structure. Has the following beneficial effects: (1) simple structure and easy assembly. (2) The sealing effect is good. (3) The structure is high in strength and suitable for high-pressure environment. (4) Stable structure and uneasy deformation.

Description

Vacuum proportional valve sealing composite part

Technical Field

The utility model relates to the technical field of sealing parts, in particular to a vacuum proportional valve sealing composite part.

Background

In recent years, the development of the machinery industry is more and more rapid, the valve industry is no exception as a valve in the industry, the valve industry is an important branch of general machinery, and the product of the valve is widely used in the industries of petroleum, chemical engineering, metallurgy, electric power, urban construction, environmental protection and the like as key equipment for fluid control. Due to the flexibility of the control of the proportional valve, the proportional valve has wider development prospect in various products of the valve. Currently, the valve manufacturing industry is in a very favorable development. With the globalization of the economy of China, the reduction of international trade thresholds and the adjustment of product structures in developed countries, the trend that China gradually becomes the largest processing factory in the world is shown, and the processing and manufacturing of valve products face a larger development space. The sealing element of the valve is in long-term contact with air and extruded in the implementation and use process, so that the material of the sealing element needs to have good aging resistance, water vapor resistance and corrosion resistance, the thickness uniformity of the sealing element needs to be good, the sealing effect of the sealing element is good, and the problems of swelling, leakage, deformation and the like cannot be caused in the use process.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

Aiming at the technical problems that the proportional valve sealing element is easy to swell, leak, deform and the like in the using process, the utility model provides the vacuum proportional valve sealing composite element, the metal component of the vacuum proportional valve sealing composite element adopts a reversed V-shaped symmetrical structure, the structural strength and the stability are improved, the thickness uniformity is excellent, the sealing effect is greatly improved, and the problems of swelling, leaking, deforming and the like are not easy to generate.

2. Technical scheme

In order to solve the problems, the technical scheme provided by the utility model is as follows:

the vacuum proportional valve sealing composite piece comprises a metal component and a rubber component which are bonded, wherein the metal component comprises a metal main body part and a metal buffering part, a U-shaped groove is formed between the metal main body part and the metal buffering part, the metal main body part and the metal buffering part are the same in thickness, the rubber component wraps the metal component, and a rubber closing structure is arranged on the inner side of the rubber component. The metal component plays a supporting role and is positioned inside the rubber component, and the rubber component plays a sealing role outside. The metal main body part and the metal buffer part with the same thickness can ensure the thickness uniformity of the sealing element and reduce the problems of swelling, leakage, deformation and the like. The U-shaped groove helps the metal component and the rubber component to be tightly embedded.

Optionally, the metal component has a symmetrical structure in a shape of a Chinese character 'shan', and the metal main body portion is located at the center and has a width wider than that of the metal buffer portion. The metal component uses the cross section of the sealing element as a symmetrical surface, and the two sides are symmetrical, so that the structure of the sealing ring is more stable.

Optionally, the U-shaped groove is a joint between the metal main body portion and the metal buffer portion, and a protrusion adapted to the U-shaped groove is disposed at a position corresponding to the rubber component. The U-shaped groove helps the metal component and the rubber component to be tightly embedded.

Optionally, the bottom of the U-shaped groove is provided with a rounded corner structure. The fillet structure of U-shaped groove can help the more convenient embedding U-shaped groove of rubber structure.

Optionally, the closing surface of the rubber closing structure is provided with adhesive. The rubber closure is bonded using an adhesive.

Optionally, the closed surface of the rubber closed structure is tooth-shaped. The toothed closing surface can improve the bonding effect and enhance the structural strength of the sealing ring.

Optionally, the surface of the metal component is provided with transverse striations. The cross striations can enhance the friction force of the metal component and the rubber component and reduce the relative sliding of the metal component and the rubber component.

Optionally, the metal component is an integrally formed structure. The integral structure can improve the integral structural strength.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

(1) the vacuum proportional valve sealing composite piece provided by the embodiment of the application has the advantages of simple structure and easiness in assembly.

(2) The sealing composite piece of the vacuum proportional valve provided by the embodiment of the application has a good sealing effect.

(3) The vacuum proportional valve sealing composite piece that this application embodiment provided, structural strength is high, is applicable to high-pressure environment.

(4) The vacuum proportional valve sealing composite piece provided by the embodiment of the application has a stable structure and is not easy to deform.

Drawings

Fig. 1 is a schematic structural diagram of a vacuum proportional valve sealing composite according to an embodiment of the present invention.

1. A metal component; 11. a metal body portion; 12. a metal buffer part; 13. a U-shaped groove; 2. a rubber component; 21. a rubber closure structure.

Detailed Description

For a further understanding of the present invention, reference will now be made in detail to the embodiments illustrated in the drawings.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The terms first, second, and the like in the present invention are provided for convenience of describing the technical solution of the present invention, and have no specific limiting effect, but are all generic terms, and do not limit the technical solution of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, and the technical solutions are within the scope of the present invention.

Examples

With reference to fig. 1, the vacuum proportional valve sealing composite member includes a metal component 1 and a rubber component 2 which are bonded, the metal component 1 includes a metal main body portion 11 and a metal buffer portion 12, a U-shaped groove 13 is disposed between the metal main body portion 11 and the metal buffer portion 12, the metal main body portion 11 and the metal buffer portion 12 have the same thickness, the rubber component 2 wraps the metal component 1, and a rubber closing structure 21 is disposed on the inner side of the rubber component 2. The metal component 1 plays a supporting role and is positioned inside the rubber component 2, and the rubber component 2 plays a sealing role outside. The metal main body part 11 and the metal buffer part 12 with the same thickness can ensure the thickness uniformity of the sealing piece and reduce the problems of swelling, leakage, deformation and the like. The developed material of the rubber part conforms to NSF61 related certification or Japanese JISK 6353: 1997 test and japan food and defense. The material has outstanding advantages in meeting various physical performance indexes, water vapor resistance, durability and excellent sealing performance, and can be completely suitable for vacuum proportional valves.

The metal component 1 has a symmetrical structure in a chevron shape, and the metal body 11 is located at the center and has a width wider than that of the metal buffer 12. The metal component 1 uses the cross section of the sealing element as a symmetrical surface, and the two sides are symmetrical, so that the structure of the sealing ring is more stable.

The U-shaped groove 13 is a joint of the metal main body part 11 and the metal buffer part 12, and a protrusion matched with the U-shaped groove 13 is arranged at a corresponding position of the rubber component 2. The U-shaped groove 13 helps the metal member 1 and the rubber member 2 to be fitted more tightly. And a fillet structure is arranged at the bottom of the U-shaped groove 13. The rounded configuration of the U-shaped channel 13 may help facilitate the insertion of the rubber structure into the U-shaped channel 13.

And the closing surface of the rubber closing structure 21 is provided with viscose. The rubber closure 21 is bonded using glue. The closed surface of the rubber closed structure 21 is in a tooth shape. The toothed closing surface can improve the bonding effect and enhance the structural strength of the sealing ring.

The surface of the metal component 1 is provided with transverse grains. The cross striations can enhance the friction force of the metal component 1 and the rubber component 2 and reduce the relative sliding of the metal component and the rubber component.

The rubber component 2 is vulcanized and formed by rubber. The process flow comprises the steps of rubber mixing and molding → vulcanization → quality inspection → test verification and the like. Because the sealing element is in contact with air and extruded for a long time in the using process, the material of the sealing element is required to have good aging resistance, water vapor resistance, corrosion resistance and thickness uniformity, so that the sealing effect of the sealing element is good, and the problems of swelling, leakage, deformation and the like cannot be caused in the using process.

The rubber component 2 makes full use of the technology and development experience of the Japan rattan storehouse company in the field of rubber for many years, and cooperates with the technology and development experience to develop the rubber material with a special formula so as to meet the expected material performance requirement, so the rubber component is feasible in the technical aspect of material development. The rubber vulcanization mould is designed in a unique flat plate mould pressing mode, scientific data analysis is carried out on the flow distribution performance of rubber only in the design process, a mould structure meeting the requirements is designed according to the result of the data analysis, and the problem of high uniformity of products is solved. And an advanced feeding process is used, so that the production efficiency is greatly improved.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.

Claims (8)

1. The vacuum proportional valve sealing composite part is characterized by comprising a metal component and a rubber component which are bonded, wherein the metal component comprises a metal main body part and a metal buffer part, a U-shaped groove is formed between the metal main body part and the metal buffer part, the metal main body part and the metal buffer part are the same in thickness, the rubber component wraps the metal component, and a rubber closing structure is arranged on the inner side of the rubber component.

2. The vacuum proportional valve sealing composite of claim 1, wherein the metal component is a symmetrical chevron-shaped structure, the metal body portion being centrally located and having a width greater than the metal buffer portion.

3. The vacuum proportional valve sealing composite of claim 1, wherein the U-shaped groove is a joint of the metal main body part and the metal buffer part, and a protrusion matched with the U-shaped groove is arranged at a corresponding position of the rubber component.

4. The vacuum proportional valve sealing composite of claim 1, wherein the bottom of the U-shaped groove is provided with a rounded corner structure.

5. The vacuum proportional valve sealing composite of claim 1, wherein the closed face of the rubber closure structure is provided with an adhesive.

6. The vacuum proportional valve sealing composite of claim 1, wherein the closed face of the rubber closure structure is toothed.

7. The vacuum proportional valve sealing composite of any of claims 1-6, wherein the metal component surface is provided with cross-striations.

8. The vacuum proportional valve sealing composite of any of claims 1-6, wherein the metal component is an integrally formed structure.

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