CN221347844U

CN221347844U - Metal sealing ring capable of realizing bidirectional axial sealing and sealing structure

Info

Publication number: CN221347844U
Application number: CN202323440492.XU
Authority: CN
Inventors: 蒋汉辉
Original assignee: Chengdu Hangruike Precision Machinery Co ltd
Current assignee: Chengdu Hangruike Precision Machinery Co ltd
Filing date: 2023-12-14
Publication date: 2024-07-16
Anticipated expiration: 2033-12-14

Abstract

The embodiment of the utility model discloses a metal sealing ring and a sealing structure capable of realizing bidirectional axial sealing. The metal sealing ring capable of realizing bidirectional axial sealing comprises a first C-shaped part, a middle connecting part and a second C-shaped part; the first C-shaped part and the second C-shaped part are symmetrically arranged at two ends of the middle connecting part; and the opening of the first C-shaped part faces one axial end of the metal sealing ring, the opening of the second C-shaped part faces the other axial end of the metal sealing ring, so that the first C-shaped part forms a first protruding part and a second protruding part on the outer diameter side and the inner diameter side of the metal sealing ring respectively, and the second C-shaped part forms a third protruding part and a fourth protruding part on the outer diameter side and the inner diameter side of the metal sealing ring respectively. The metal sealing ring and the sealing structure which can realize bidirectional axial sealing and have the advantages of the metal C-shaped sealing ring.

Description

Metal sealing ring capable of realizing bidirectional axial sealing and sealing structure

Technical Field

The utility model relates to the technical field related to sealing rings, in particular to a metal sealing ring and a sealing structure capable of realizing bidirectional axial sealing.

Background

The sealing ring is a common engineering part and is widely applied to various mechanical equipment and industrial systems. The main function of the device is to form an effective seal between two contacted parts, prevent leakage of liquid, gas or solid particles, prevent invasion of external dust, moisture and other impurities, and ensure normal operation of mechanical equipment and industrial systems.

However, the existing sealing ring can only seal one axial direction when axially sealing, and cannot meet some working conditions requiring bidirectional axial sealing.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model discloses a metal sealing ring and a sealing structure capable of realizing bidirectional axial sealing.

The metal sealing ring capable of realizing bidirectional axial sealing comprises a first C-shaped part, a middle connecting part and a second C-shaped part; the first C-shaped part and the second C-shaped part are symmetrically arranged at two ends of the middle connecting part; and the opening of the first C-shaped part faces one axial end of the metal sealing ring, the opening of the second C-shaped part faces the other axial end of the metal sealing ring, so that the first C-shaped part forms a first protruding part and a second protruding part on the outer diameter side and the inner diameter side of the metal sealing ring respectively, and the second C-shaped part forms a third protruding part and a fourth protruding part on the outer diameter side and the inner diameter side of the metal sealing ring respectively.

According to a preferred embodiment of the present utility model, the intermediate connecting portion is provided with a first concave portion and a second concave portion on an outer diameter side and an inner diameter side of the metal seal ring, respectively; smooth transitions between the first protrusion and the first recess and between the first recess and the third protrusion; smooth transitions between the second convex portion and the second concave portion and between the second concave portion and the fourth convex portion.

According to a preferred embodiment of the present utility model, the first and third protrusions have an arc-shaped structure protruding radially outwardly along the metal seal ring; the second protruding part and the fourth protruding part are arc-shaped structures protruding inwards along the radial direction of the metal sealing ring; the first concave part is of an arc-shaped structure which is concave inwards along the radial direction of the metal sealing ring; the second concave part is of an arc-shaped structure which is concave outwards along the radial direction of the metal sealing ring.

According to a preferred embodiment of the present utility model, the metal seal ring capable of achieving bidirectional axial sealing further includes a first elastic member; the first elastic piece is arranged in the opening of the first C-shaped part.

According to a preferred embodiment of the utility model, the first elastic member is a spring coil, a rubber coil, a tetrafluoro coil or a wire wound coil.

According to a preferred embodiment of the present utility model, the metal seal ring capable of achieving bidirectional axial sealing further includes a second elastic member; the second elastic piece is arranged in the opening of the second C-shaped part.

According to a preferred embodiment of the utility model, the second elastic member is a spring coil, a rubber coil, a tetrafluoro coil or a wire wound coil.

According to a preferred embodiment of the present utility model, the first C-shaped portion, the intermediate connection portion and the second C-shaped portion are integrally formed as a unitary structure.

According to a preferred embodiment of the utility model, the surface of the metal sealing ring is provided with a protective layer.

The sealing structure comprises a mounting hole, a shaft and the metal sealing ring; the shaft is inserted into the mounting hole; the metal sealing ring is arranged between the shaft and the mounting hole, and the shaft and the metal sealing ring are in interference fit with each other and the metal sealing ring and the mounting hole, so that a first sealing point and a second sealing point are respectively formed between a first protruding part and a third protruding part on the metal sealing ring and the inner wall of the mounting hole, and a third sealing point and a fourth sealing point are respectively formed between a second protruding part and a fourth protruding part and the shaft.

The metal sealing ring and the sealing structure which can realize bidirectional axial sealing provided by the embodiment of the utility model have one or more of the following technical effects:

The metal sealing ring and the sealing structure which can realize bidirectional axial sealing and have the advantages of the metal C-shaped sealing ring.

Additional features of the utility model will be set forth in part in the description which follows. Additional features of part of the utility model will be readily apparent to those skilled in the art from a examination of the following description and the corresponding figures or a study of the manufacture or operation of the embodiments. The features of the present disclosure may be implemented and realized in the practice or use of the various methods, instrumentalities and combinations of the specific embodiments described below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. Like reference symbols in the various drawings indicate like elements. Wherein,

FIG. 1 is a schematic cross-sectional structural view of a metal seal ring capable of achieving a bi-directional axial seal in accordance with some embodiments of the present utility model;

FIG. 2 is a schematic cross-sectional view of a seal structure according to some embodiments of the utility model;

FIG. 3 is a schematic cross-sectional view of a metal seal ring capable of achieving a bi-directional axial seal in accordance with further embodiments of the present utility model;

Fig. 4 is a schematic cross-sectional structure of a sealing structure according to other embodiments of the present utility model.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It should be noted that if the terms "first," "second," and the like are referred to in the description of the present utility model and the claims and the above figures, they are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the utility model herein. Furthermore, if the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present utility model, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like are referred to, the indicated azimuth or positional relationship is based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Further, in the present utility model, the terms "mounted," "configured," "provided," "connected," "sleeved," and the like are to be construed broadly if they relate to. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

One aspect of the embodiments of the present utility model discloses a metal seal ring capable of achieving a bi-directional axial seal.

As shown in fig. 1, the metal seal ring capable of achieving bidirectional axial sealing includes a first C-shaped portion 110, an intermediate connection portion 120, and a second C-shaped portion 130. The first and second C-shaped portions 110 and 130 are symmetrically disposed at both ends of the intermediate connection portion 120.

The opening of the first C-shaped portion 110 faces one end of the metal seal ring in the axial direction, and the opening of the second C-shaped portion 130 faces the other end of the metal seal ring in the axial direction, so that the first C-shaped portion 110 forms a first protruding portion 111 and a second protruding portion 112 on the outer diameter side and the inner diameter side of the metal seal ring, and the second C-shaped portion 130 forms a third protruding portion 131 and a fourth protruding portion 132 on the outer diameter side and the inner diameter side of the metal seal ring, respectively.

Further, the intermediate connection portion 120 is provided with a first recess portion 121 and a second recess portion 122 on the outer diameter side and the inner diameter side of the metal seal ring, respectively. Smooth transitions between the first protrusion 111 and the first recess 121 and between the first recess 121 and the third protrusion 131. Smooth transitions between the second convex portion 112 and the second concave portion 122 and between the second concave portion 122 and the fourth convex portion 132.

Illustratively, as shown in fig. 1, the first protrusion 111 and the third protrusion 131 have an arc-shaped structure protruding radially outwardly of the metal seal ring. The second projection 112 and the fourth projection 132 have an arc-shaped structure projected inward in the radial direction of the metal seal ring. The first recess 121 has an arc-shaped structure recessed inward in the radial direction of the metal seal ring. The second concave portion 122 has an arc-shaped structure that is concave radially outward along the metal seal ring.

As a preferred embodiment, the first C-shaped portion 110, the intermediate connection portion 120 and the second C-shaped portion 130 are integrally formed as a unitary structure. The metal sealing ring is manufactured in an integrated forming mode, so that the metal sealing ring has better integrity and is more durable. Of course, the metal seal ring of the embodiment of the utility model can also be manufactured by other methods (such as machining, welding, etc.).

Further, as shown in fig. 3, in some embodiments, the metal seal ring capable of achieving a bi-directional axial seal further includes a first resilient member 200. The first elastic member 200 is disposed in the opening of the first C-shaped portion 110. So that the metal seal ring is formed as an elastically reinforced metal C-seal ring.

The first elastic member 200 is, for example, a spring coil, a rubber coil, a tetrafluoro coil, or a wire wound coil.

Further, as shown in fig. 3, in some embodiments, the metal seal ring capable of achieving a bi-directional axial seal further includes a second resilient member 300. The second elastic member 300 is disposed in the opening of the second C-shaped portion 130. So that the metal seal ring is formed as an elastically reinforced metal C-seal ring.

The second elastic member 300 is, for example, a spring coil, a rubber coil, a tetrafluoro coil, or a wire wound coil.

Further, in some embodiments, the surface of the metal seal ring is provided with a protective layer. For example, a protective layer may be provided on both the outer surface of the metal seal ring and the inner surface of the C-shaped structure. Illustratively, the protective layer may employ a gold layer, a silver layer, a copper layer, a nickel layer, a chromium layer, a tin layer, or a tetrafluoro layer.

One aspect of an embodiment of the present utility model discloses a sealing structure.

The seal structure includes a mounting hole 10, a shaft 20 and a metal seal ring 30 as in any of the embodiments described above.

In the installed state, the shaft 20 is inserted into the installation hole 10. The metal seal ring 30 is disposed between the shaft 20 and the mounting hole 10, and the interference fit between the shaft 20 and the metal seal ring 30 and between the metal seal ring 30 and the mounting hole 10 is such that a first sealing point and a second sealing point are formed between the first protrusion 111 and the third protrusion 131 on the metal seal ring 30 and the inner wall of the mounting hole 10, respectively, and a third sealing point and a fourth sealing point are formed between the second protrusion 112 and the fourth protrusion 132 and the shaft 20, respectively, as shown in fig. 2 and 4.

By adopting the metal sealing ring and the sealing structure capable of realizing bidirectional axial sealing, which are disclosed by the embodiment of the utility model, bidirectional axial sealing can be realized, namely, the sealing in two directions of axial pressure F1 and F2 in the figures 2 and 4 can be realized.

It should be noted that all of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except mutually exclusive features and/or steps.

In addition, the foregoing detailed description is exemplary, and those skilled in the art, having the benefit of this disclosure, may devise various arrangements that, although not explicitly described herein, are within the scope of the present disclosure. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the utility model is defined by the claims and their equivalents.

Claims

1. A metal sealing ring capable of realizing bidirectional axial sealing, which is characterized by comprising a first C-shaped part (110), an intermediate connecting part (120) and a second C-shaped part (130);

The first C-shaped part (110) and the second C-shaped part (130) are symmetrically arranged at two ends of the middle connecting part (120);

And, the opening of first C type portion (110) is towards metal seal circle axial one end, the opening of second C type portion (130) is towards metal seal circle axial other end, makes first C type portion (110) are at metal seal circle's external diameter side and internal diameter side respectively form first bulge (111) and second bulge (112), second C type portion (130) are at metal seal circle's external diameter side and internal diameter side respectively form third bulge (131) and fourth bulge (132).

2. The metal seal ring capable of realizing bidirectional axial sealing according to claim 1, wherein the intermediate connecting portion (120) is provided with a first concave portion (121) and a second concave portion (122) on an outer diameter side and an inner diameter side of the metal seal ring, respectively;

-a smooth transition between the first bulge (111) and the first recess (121) and between the first recess (121) and the third bulge (131);

-smooth transitions between the second protrusions (112) and the second recesses (122) and between the second recesses (122) and the fourth protrusions (132).

3. A metal seal ring capable of achieving a bi-directional axial seal as defined in claim 2 wherein,

The first bulge (111) and the third bulge (131) are arc structures which bulge outwards along the radial direction of the metal sealing ring;

The second protruding part (112) and the fourth protruding part (132) are of arc-shaped structures protruding inwards along the radial direction of the metal sealing ring;

The first concave part (121) is of an arc-shaped structure which is concave inwards along the radial direction of the metal sealing ring;

The second concave part (122) is of an arc-shaped structure which is concave outwards along the radial direction of the metal sealing ring.

4. A metal seal ring capable of achieving a bi-directional axial seal according to one of claims 1 to 3, characterized in that the metal seal ring capable of achieving a bi-directional axial seal further comprises a first elastic member (200); the first elastic member (200) is disposed in the opening of the first C-shaped portion (110).

5. The metal seal ring capable of achieving a bi-directional axial seal according to claim 4, wherein the first elastic member (200) is a spring ring, a rubber ring, a tetrafluoro ring or a wire wound ring.

6. A metal seal ring capable of achieving a bi-directional axial seal according to one of claims 1 to 3, characterized in that the metal seal ring capable of achieving a bi-directional axial seal further comprises a second elastic member (300); the second elastic member (300) is disposed in the opening of the second C-shaped portion (130).

7. The metal seal ring capable of achieving a bi-directional axial seal according to claim 6, wherein the second elastic member (300) is a spring ring, a rubber ring, a tetrafluoro ring or a wire wound ring.

8. A metal seal ring capable of realizing a bi-directional axial seal according to one of claims 1 to 3, characterized in that the first C-shaped portion (110), the intermediate connecting portion (120) and the second C-shaped portion (130) are of an integrally formed unitary structure.

9. The metal seal ring capable of achieving bidirectional axial sealing according to claim 1, wherein a protective layer is provided on a surface of the metal seal ring.

10. A sealing structure, characterized in that it comprises a mounting hole (10), a shaft (20) and a metal sealing ring (30) according to one of claims 1 to 9;

The shaft (20) is inserted into the mounting hole (10); the metal sealing ring (30) is arranged between the shaft (20) and the mounting hole (10), the shaft (20) is in interference fit with the metal sealing ring (30) and the mounting hole (10), a first sealing point and a second sealing point are respectively formed between a first protruding part (111) and a third protruding part (131) on the metal sealing ring (30) and the inner wall of the mounting hole (10), and a third sealing point and a fourth sealing point are respectively formed between a second protruding part (112) and a fourth protruding part (132) and the shaft (20).