CN212643530U

CN212643530U - Sealing structure

Info

Publication number: CN212643530U
Application number: CN202021300372.3U
Authority: CN
Inventors: 单新华; 陆建伟
Original assignee: Wuxi Guanxing Industrial Equipment Manufacturing Co ltd
Current assignee: Wuxi Guanxing Industrial Equipment Manufacturing Co ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-03-02
Anticipated expiration: 2030-07-06

Abstract

The embodiment of the utility model provides a seal structure belongs to sealing member technical field, seal structure includes: a first body, the first body comprising: a first sealing surface, the first sealing surface being an end surface of the first body; the sealing groove is arranged on the first sealing surface in an inwards concave mode; the pressure channel is arranged in the first main body in a penetrating mode, and the first end of the pressure channel is communicated with the sealing groove; a second body including a second sealing surface disposed opposite the first sealing surface; the sealing ring is arranged in the sealing groove and is attached to the second main body; and the second end of the pressure channel is communicated with a pressure source, and the sealing ring is pressed on the second body through the pressure source. The technical effect that the sealing ring and the second main body are tightly attached is achieved.

Description

Sealing structure

Technical Field

The utility model relates to a sealing member technical field especially relates to a seal structure.

Background

At present, the sealing mode between the end faces is mostly pressing, for example, the second main body is pressed on the first main body; in order to further ensure the sealing performance between the end faces, an upper sealing gasket is generally arranged between the first main body and the second main body in a cushioning manner, and the sealing gasket is pressed and attached to the upper end face and the lower end face by utilizing the extrusion effect of the end faces on the sealing gasket, so that a gap between the upper end face and the lower end face is completely filled, and the purpose of sealing is achieved.

However, in the actual use process, the gasket is gradually thinned due to continuous extrusion and/or material aging, so that the gasket is easily and incompletely attached to the second body, and the sealing performance of the sealing element is affected.

Therefore, the technical problems of the prior art are as follows: the fit between the seal ring and the second body is not tight enough.

Disclosure of Invention

The embodiment of the application provides a sealing structure, which solves the technical problem that in the prior art, the joint between a sealing ring and a second main body is not tight enough; the technical effect that the sealing ring and the second main body are tightly attached is achieved.

An embodiment of the present application provides a sealing structure, sealing structure includes: a first body, the first body comprising: a first sealing surface, the first sealing surface being an end surface of the first body; the sealing groove is arranged on the first sealing surface in an inwards concave mode; the pressure channel is arranged in the first main body in a penetrating mode, and the first end of the pressure channel is communicated with the sealing groove; a second body including a second sealing surface disposed opposite the first sealing surface; the sealing ring is arranged in the sealing groove and is attached to the second main body; and the second end of the pressure channel is communicated with a pressure source, and the sealing ring is pressed on the second body through the pressure source.

Preferably, the first and second sealing surfaces are both planar surfaces, or the first and second sealing surfaces are a complementary set of end surfaces.

Preferably, the first sealing surface and the second sealing surface are fitted with each other.

Preferably, the seal ring is embedded in the seal groove.

Preferably, the seal ring includes: and the second end surface is the bottom surface of the sealing ring and is concave.

Preferably, the second end face is concave inwards from the edge to the center.

Preferably, the second end face is a concave shape with symmetrical inner and outer sides.

Preferably, an accommodating cavity is formed in the first main body, and a certain pressure can be accommodated in the accommodating cavity; and the second end of the pressure channel is communicated with the accommodating cavity.

Preferably, the cross section of the sealing groove is wide at the top and narrow at the bottom; and the cross section shape of the sealing ring is consistent with that of the sealing groove.

Preferably, the first body and the second body are detachably connected.

One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:

1. in the embodiment of the application, the sealing groove and the pressure channel are arranged on the first main body, two ends of the pressure channel are respectively communicated with the pressure source and the sealing groove, and the sealing ring is always tightly pressed and attached to the second main body by using the pressure of the pressure source; the technical problem that the sealing ring and the second main body are not tightly attached in the prior art is solved; the technical effect that the sealing ring and the second main body are tightly attached is achieved.

2. In this application embodiment, through the shape of optimizing the sealing washer, set up the second terminal surface of sealing washer into concave shape, and the inside and outside bilateral symmetry of second terminal surface for pressure in the pressure source can stably promote the sealing washer, makes the laminating level and smooth between sealing washer and the second main part.

Drawings

FIG. 1 is a schematic sectional view of a seal structure in an embodiment of the present application;

FIG. 2 is a schematic top view of the first body according to the embodiment of the present disclosure;

FIG. 3 is a schematic view of a partial explosion of a seal structure in an embodiment of the present application;

fig. 4 is a schematic cross-sectional structure diagram of a seal ring in an embodiment of the present application.

Reference numerals: 1. a first body; 11. an accommodating cavity; 12. a sealing groove; 13. a pressure channel; 2. a second body; 3. a seal ring; 31. a first end face; 32. a second end face; 33. a third end face; 34. a fourth end surface.

Detailed Description

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate 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.

The embodiment of the application provides a sealing structure, wherein a sealing groove 12 and a pressure channel 13 are arranged on a first main body 1, two ends of the pressure channel 13 are respectively communicated with a pressure source and the sealing groove 12, and a sealing ring 3 is always tightly pressed and attached to a second main body 2 by using the pressure of the pressure source; the technical problem that the sealing ring 3 and the second main body 2 are not tightly attached in the prior art is solved; the technical effect that the sealing ring 3 and the second main body 2 are tightly attached is achieved.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

A seal arrangement substantially as hereinbefore described with reference to figures 1 and 3 of the accompanying drawings; the seal structure includes: a first body 1, a second body 2 and a seal ring 3; wherein the first body 1 and the second body 2 are attached, the sealing ring 3 is located between the first body and the second body, and the sealing ring 3 is subjected to a pressure from a pressure source, so that the sealing ring 3 can be closely attached to the second body 2.

A first body 1, see figures 2-3 of the specification; the first body 1 includes: a first sealing surface, a seal groove 12 and a pressure channel 13; the first sealing surface is an end surface of the first body 1, preferably the first sealing surface is an upper end surface of the first body 1. The sealing groove 12 is concavely arranged on the first sealing surface, and the cross section of the sealing groove 12 is wide at the top and narrow at the bottom; the cross section shape of the sealing ring 3 is consistent with that of the sealing groove 12, so that the sealing ring 3 is not shaken or displaced when being placed in the sealing groove 12; in addition, for the air tightness between the sealing groove 12 and the sealing ring 3, the cross section of the sealing groove 12 may be narrow at the top and wide at the bottom, so that the sealing ring 3 can tightly fit the groove wall of the sealing groove 12 when moving outwards. And the pressure channel 13 is arranged in the first main body 1 in a penetrating way, and a first end of the pressure channel 13 is communicated with the sealing groove 12. The pressure channel 13 may be formed by casting or may be drilled. It should be noted that, in order to ensure that the sealing ring 3 can be uniformly stressed to achieve uniform outward movement of the sealing ring 3, preferably, the pressure channel 13 is divided into at least two sections, the first section is located below the sealing groove 12, and the first section of the pressure channel 13 is perpendicular to the bottom surface of the sealing groove 12 and is communicated with the sealing groove 12; the second section of pressure channel 13 is used to communicate the first section of pressure channel 13 with a pressure source, and to press the sealing ring 3 against the second body 2 by the pressure source.

It should be noted that, an accommodating cavity 14 may be constructed on the first main body 1, and a certain pressure may be accommodated in the accommodating cavity 14; the second end of the pressure channel 13 communicates with the accommodation chamber 14. Therefore, the high-efficiency sealing can be achieved by utilizing the pressure in the protected object of the sealing structure without externally connecting a pressure source.

A second body 2, with reference to figure 1 of the description; the second body 2 includes a second sealing surface disposed opposite the first sealing surface and adapted to engage the first sealing surface. It will be appreciated that the first and second sealing surfaces are both planar or that the first and second sealing surfaces are a complementary set of end faces.

A seal ring 3, see figure 4 of the specification; the sealing ring 3 is embedded in the sealing groove 12, and the sealing ring 3 is attached to the second main body 2. The seal ring 3 includes: a first end surface 31, a second end surface 32, a third end surface 33 and a fourth end surface 34. The first end surface 31 is the upper top surface of the sealing ring 3; the second end surface 32 is a bottom surface of the sealing ring 3, and the second end surface 32 is concave, specifically, a concave shape with symmetrical inner and outer sides, and preferably, the concave shape is concave from the edge to the center. The first end face 31 is preferably larger in size than the second end face 32 in order to stabilize the second body 2 while maintaining a high pressure on the sealing ring 3. The third end face 33 is an outer end face of the seal ring 3, and the fourth end face 34 is an inner end face of the seal ring 3; when the pressure source is from the protection object of the sealing structure, preferably, the third end face 33 is a vertical face, and the fourth end face 34 is a face inclined from bottom to top to inside, such a design may be that when the pressure source acts on the sealing ring 3, the sealing ring 3 moves upward to attach to the second body 2, at this time, the third end face 33 of the sealing ring 3 and the sealing groove 12 may still be attached, and a gap may occur between the fourth end face 34 and the sealing groove 12, so that the pressure returns to the accommodating cavity 14 again through the fourth end face 34, so that the second end face 32 of the sealing groove 12 and the inclined fourth end face 34 both receive the pressure, and under the pressure action of the two end faces, the sealing ring 3 tightly pushes the second body 2, so that the third end face 33 of the sealing ring 3 tightly pushes the sealing groove 12, and efficient sealing is ensured. It should be noted that the joint surface of the sealing ring 3 relative to the second body may be corrugated, and the tight joint between the sealing ring 3 and the second body 2 is further ensured by utilizing the characteristic of large deformation amplitude of the corrugated end surface.

The working principle is as follows:

on the basis of the joint of the second main body 2 and the first main body 1, the pressure source provides pressure for the sealing groove 12 through the pressure channel 13, and the sealing ring 3 is tightly propped against and jointed on the second main body 2 under the action of the pressure, so that the sealing ring 3 and the second main body 2 are tightly jointed.

The technical effects are as follows:

3. In the embodiment of the application, through the first main body inner member accommodating cavity, the advantage that the accommodating cavity can accommodate pressure is utilized, so that the accommodating cavity can serve as a pressure source to provide power for tightly pushing the second main body for the sealing ring. When the sealing structure is applied to the pressure container sintering furnace, the accommodating cavity can be used as a main working cavity of the pressure container sintering furnace for sintering, and meanwhile, pressure generated by sintering and/or air pressure driven into the main working cavity are used as power for tightly pushing the sealing ring against the second main body.

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A sealing structure, characterized in that the sealing structure comprises:

a first body, the first body comprising:

a first sealing surface, the first sealing surface being an end surface of the first body;

the sealing groove is arranged on the first sealing surface in an inwards concave mode; and

the pressure channel is arranged in the first main body in a penetrating mode, and a first end of the pressure channel is communicated with the sealing groove;

a second body including a second sealing surface disposed opposite the first sealing surface; and

the sealing ring is arranged in the sealing groove and is attached to the second main body;

and the second end of the pressure channel is communicated with a pressure source, and the sealing ring is pressed on the second body through the pressure source.

2. The seal structure of claim 1, wherein the first and second seal surfaces are planar surfaces or the first and second seal surfaces are a complementary set of end surfaces.

3. The seal structure of claim 1, wherein the first seal surface and the second seal surface abut.

4. The seal structure of claim 1, wherein the seal ring is embedded within the seal groove.

5. The seal structure of claim 1, wherein the seal ring comprises:

and the second end surface is the bottom surface of the sealing ring and is concave.

6. The seal of claim 5, wherein the second end surface is concave inwardly from the edge toward the center.

7. The seal of claim 5, wherein said second end surface is in the form of a concave interior that is symmetrical on both an interior and exterior side.

8. The seal structure of claim 1, wherein the first body defines a cavity, and wherein the cavity is configured to receive a pressure; and the second end of the pressure channel is communicated with the accommodating cavity.

9. The seal structure of claim 1, wherein the cross-sectional shape of the seal groove is wider at the top and narrower at the bottom; and the cross section shape of the sealing ring is consistent with that of the sealing groove.

10. The sealing structure of claim 1, wherein the first body and the second body are removably connected.