CN222503057U - A sealing flange - Google Patents
A sealing flange Download PDFInfo
- Publication number
- CN222503057U CN222503057U CN202420457399.5U CN202420457399U CN222503057U CN 222503057 U CN222503057 U CN 222503057U CN 202420457399 U CN202420457399 U CN 202420457399U CN 222503057 U CN222503057 U CN 222503057U
- Authority
- CN
- China
- Prior art keywords
- flange
- sealing
- groove
- gasket
- flange plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 59
- 239000007769 metal material Substances 0.000 claims description 4
- 229910052755 nonmetal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model provides a sealing flange which comprises a first flange plate, a second flange plate, an inner layer gasket and an outer layer gasket, wherein a step-shaped tenon surface structure is arranged on a sealing surface of the first flange plate, a step-shaped groove surface structure opposite to the step-shaped tenon surface structure is arranged on a sealing surface of the second flange plate, and the inner layer gasket and the outer layer gasket are arranged between the first flange plate and the second flange plate and used for sealing. The sealing flange is simple in structure and can ensure sealing reliability.
Description
Technical Field
The utility model relates to the field of flange sealing, in particular to a sealing flange.
Background
Flanges are parts of the piping and the interconnections between the piping, which are important in industrial manufacturing, and a set of industrial piping systems typically include a number of flange assemblies, so that the effect and reliability of the flange seal are particularly important.
In view of this, there is a need to design a sealing flange that combines both sealing effect and reliability with a simple structure.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provides a sealing flange.
The utility model provides a sealing flange which comprises a first flange plate, a second flange plate, an inner layer gasket and an outer layer gasket, wherein a step-shaped tenon surface structure is arranged on a sealing surface of the first flange plate, a step-shaped groove surface structure opposite to the step-shaped tenon surface structure is arranged on a sealing surface of the second flange plate, and the inner layer gasket and the outer layer gasket are arranged between the first flange plate and the second flange plate and used for sealing.
According to one embodiment of the present utility model, the inner layer gasket is made of metal, and the outer layer gasket is made of nonmetal.
According to one embodiment of the utility model, the first flange plate comprises a first protruding connecting portion and a first flange ring, the first flange ring is arranged on the periphery of the first protruding connecting portion, and a plurality of first bolt through holes are uniformly formed in the first flange ring.
According to one embodiment of the utility model, the step-shaped tenon face structure is arranged on the end face of the first flange ring far away from the first protruding connecting portion in the axial direction.
According to one embodiment of the utility model, the stepped dovetail face structure is located on a sealing face between the first male connection portion and the plurality of first bolt through holes in a radial direction.
According to one embodiment of the utility model, the second flange plate comprises a second protruding connecting portion and a second flange ring, the second flange ring is arranged on the periphery of the second protruding connecting portion, and a plurality of second bolt through holes are uniformly formed in the second flange ring.
According to one embodiment of the utility model, the stepped groove surface structure is provided at an end surface of the second flange ring in an axial direction away from the second protruding connecting portion.
According to one embodiment of the present utility model, the stepped groove surface structure is located on a sealing surface between the second boss connecting portion and the plurality of second bolt through holes in a radial direction.
According to one embodiment of the utility model, the step-shaped tenon surface structure is a double-layer structure, an inner layer step and an outer layer step are sequentially divided outwards in the radial direction, the inner layer step is higher than the outer layer step, the step-shaped groove surface structure is divided into the double-layer structure, an inner layer groove and an outer layer groove are sequentially divided outwards in the radial direction, and the inner layer groove is lower than the outer layer groove.
According to one embodiment of the present utility model, the inner layer gasket is for being mounted between the inner layer step and the inner layer groove, and the outer layer gasket is for being mounted between the outer layer step and the outer layer groove.
The sealing flange with the step-shaped tenon surface structure and the step-shaped groove surface structure can ensure that the first flange plate and the second flange plate are easy to center when being installed, and can effectively solve the problem that a sealing ring, namely a gasket, is easy to extrude out of a sealing surface. The inner layer gasket and the outer layer gasket can adapt to the environmental change of the flange, so that the first flange plate and the second flange plate are tightly attached, and the sealing reliability is ensured.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the scope of the utility model, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and, together with the description, serve to explain the principles of the utility model.
FIG. 1 is an elevation view of a sealing flange according to one embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a sealing flange according to one embodiment of the utility model.
Reference numerals:
100-first flange plate, 101-step tenon face structure, 1011-inner layer step, 1012-outer layer step, 102-first convex connecting part, 103-first flange ring, 104-first bolt through hole, 200-second flange plate, 201-step groove face structure, 2011-inner layer groove, 2012-outer layer groove, 202-second convex connecting part, 203-second flange ring, 204-second bolt through hole, 300-inner layer gasket and 400-outer layer gasket.
Detailed Description
Features and exemplary embodiments of various aspects of the present utility model will be described in detail below, and in order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the principles of the present utility model and not in limitation thereof. In addition, the mechanical components in the drawings are not necessarily to scale. For example, the dimensions of some of the structures or regions in the figures may be exaggerated relative to other structures or regions to help facilitate an understanding of embodiments of the present utility model.
The directional terms appearing in the following description are all directions shown in the drawings and do not limit the specific structure of the embodiment of the present utility model. In the description of the present utility model, unless otherwise indicated, the terms "mounted," "connected," and "connected" are to be construed broadly and include, for example, fixedly connected, detachably connected, or integrally connected, and may be directly or indirectly connected via an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.
Furthermore, the terms "comprises," "comprising," "includes," "including," "having," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure or assembly that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such structure, assembly. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of additional identical elements in an article or apparatus that comprises the element.
Spatially relative terms such as "below," "beneath," "under," "low," "above," "on," "high," and the like are used for convenience of description to explain the positioning of one element relative to a second element and to represent different orientations of the device in addition to those depicted in the figures. In addition, for example, "one element above/below another element" may mean that two elements are in direct contact, or that other elements are present between the two elements. Furthermore, terms such as "first," "second," and the like, are also used to describe various elements, regions, sections, etc., and should not be taken as limiting. Like terms refer to like elements throughout the description.
It will be apparent to one skilled in the art that the present utility model may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the utility model by showing examples of the utility model.
Fig. 1 is a front view of a sealing flange according to an embodiment of the present utility model, and fig. 2 is a cross-sectional view of a sealing flange according to an embodiment of the present utility model.
As shown in fig. 1, the present utility model provides a sealing flange including a first flange plate 100, a second flange plate 200, an inner layer gasket 300, and an outer layer gasket 400. The sealing surface of the first flange plate 100 is provided with a step-shaped tenon surface structure 101, and the sealing surface of the second flange plate 200 is provided with a step-shaped groove surface structure 201 opposite to the step-shaped tenon surface structure 101. The inner and outer gaskets 300 and 400 are provided between the first and second flanges 100 and 200 for sealing.
According to one embodiment of the present utility model, inner spacer 300 is made of a metal material and outer spacer 400 is made of a non-metal material.
Specifically, the design of the step-shaped tenon-and-mortise sealing structure is adopted in the embodiment, and the step-shaped tenon surface structure 101 and the step-shaped mortise surface structure 201 can ensure that the first flange plate 100 and the second flange plate 200 are easy to center when being installed, and can effectively solve the problem that the gasket sealing ring is easy to extrude to be sealed. The inner layer gasket 300 is arranged on the inner side of the opposite surface of the step-shaped tenon surface structure 101 and the step-shaped groove surface structure 201, the outer layer gasket 400 is arranged on the outer side of the opposite surface of the step-shaped tenon surface structure 101 and the step-shaped groove surface structure 201, and the combination sealing mode, namely the mode of the inner layer metal gasket and the outer layer nonmetal gasket, can adapt to the environmental change of the flange, and ensures that the first flange plate 100 and the second flange plate 200 are tightly attached.
The double-layer gasket is suitable for low-temperature pipeline environments and pipeline environments with repeated changes of cold state and normal temperature, so that the sealing reliability is improved, and the risk of liquid leakage is reduced. Particularly, the sealing mode that the metal inner layer gasket 300 and the nonmetal outer layer gasket 400 are combined is adopted, so that the problems that the sealing is poor when the metal inner layer gasket 300 is simply used due to the fact that the pre-tightening force is too small, and the breakage when the nonmetal outer layer gasket 400 is simply used due to the fact that the pre-tightening force is too large can be effectively solved.
As shown in fig. 2, the first flange plate 100 includes a first male coupling portion 102 and a first flange ring 103 according to one embodiment of the present utility model. The first flange ring 103 is disposed at the outer periphery of the first protruding connection portion 102, and a plurality of first bolt through holes 104 are uniformly disposed on the first flange ring 103.
According to one embodiment of the utility model, the stepped dovetail face structure 101 is provided at an end face of the first flange ring 103 remote from the first male connection portion 102 in the axial direction.
According to one embodiment of the present utility model, the stepped dovetail face structure 101 is located on the sealing face between the first male connection portion 102 and the plurality of first bolt through holes 104 in the radial direction.
According to one embodiment of the utility model, the second flange 200 includes a second male coupling portion 202 and a second flange ring 203. The second flange ring 203 is disposed at the outer periphery of the second protruding connection portion 202, and a plurality of second bolt through holes 204 are uniformly disposed on the second flange ring 203.
According to one embodiment of the utility model, the stepped groove surface structure 201 is provided at an end surface of the second flange ring 203 remote from the second male coupling portion 202 in the axial direction.
According to one embodiment of the present utility model, the stepped groove surface structure 201 is located on the sealing surface between the second boss connecting portion 202 and the plurality of second bolt through holes 204 in the radial direction.
According to one embodiment of the utility model, the step-shaped tenon face structure 101 is a double-layer structure, the step-shaped tenon face structure is divided into an inner-layer step 1011 and an outer-layer step 1012 in sequence outwards along the radial direction, the inner-layer step 1011 is higher than the outer-layer step 1012, the step-shaped groove face structure 201 is divided into a double-layer structure, the step-shaped tenon face structure is divided into an inner-layer groove 2011 and an outer-layer groove 2012 in sequence outwards along the radial direction, and the inner-layer groove 2011 is lower than the outer-layer groove 2012.
According to one embodiment of the present utility model, inner layer shim 300 is configured to fit between inner layer step 1011 and inner layer groove 2011, and outer layer shim 400 is configured to fit between outer layer step 1012 and outer layer groove 2012.
Specifically, the first flange plate 100 and the second flange plate 200 may be selected to have a separate structure or a unitary structure, and the present application is preferably a unitary, machined, unitary structure. As one embodiment, the first protruding connecting portion 102, the first flange ring 103 and the step-shaped tenon face structure 101 are integrally formed, and the second protruding connecting portion 202, the second flange ring 203 and the step-shaped groove face structure 201 are integrally formed.
In the present embodiment, the annular inner layer step 1011 can be embedded in the annular inner layer groove 2011, and the annular outer layer step 1012 can be embedded in the annular outer layer groove 2012, so that the end face residual sealing surfaces of the first flange ring 103 and the second flange ring 203 are more tightly fitted to each other. In order to ensure the sealing reliability, the inner layer gasket 300 is placed between the inner layer step 1011 and the inner layer groove 2011, and the inner layer gasket 300 is a metal flat gasket, so that the gasket is not easy to break under the environment of temperature change, and the sealing reliability is ensured. Placing outer gasket 400 between outer step 1012 and outer recess 2012, outer gasket 400 selects the nonmetal flat gasket, can guarantee even if the resilience force of gasket after the cryogenically cooling, has guaranteed the leakproofness between first flange ring 103 and the second flange ring 203 in the sealing flange, is difficult for taking place the weeping phenomenon.
In a specific operation, inner gasket 300 is placed in inner groove 2011 of second flange ring 203, the outer gasket is placed in outer groove 2012 of second flange ring 203, inner step 1011 of first flange ring 103 is pressed onto inner gasket 300, and outer step 1012 is pressed onto outer gasket 400. Then, the bolts sequentially penetrate through the first bolt through holes 104 of the first flange and the second bolt through holes 204 of the second flange, and the moderate pretightening force can effectively increase the overall rigidity of the sealing flange.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. A sealing flange, comprising:
the device comprises a first flange plate, a second flange plate, an inner layer gasket and an outer layer gasket;
the sealing surface of the first flange plate is provided with a step-type tenon surface structure;
A step-type groove surface structure corresponding to the step-type tenon surface structure is arranged on the sealing surface of the second flange plate;
The inner layer gasket and the outer layer gasket are arranged between the first flange plate and the second flange plate for sealing.
2. The sealing flange of claim 1, wherein the inner gasket is a metallic material and the outer gasket is a non-metallic material.
3. The sealing flange of claim 1, wherein the first flange plate comprises a first protruding connection portion and a first flange ring, the first flange ring is disposed on the periphery of the first protruding connection portion, and a plurality of first bolt through holes are uniformly disposed on the first flange ring.
4. A sealing flange according to claim 3, wherein the stepped dovetail face structure is provided at an end face of the first flange ring in an axial direction away from the first male connection portion.
5. The sealing flange of claim 4, wherein in a radial direction, said stepped dovetail surface configuration is located on a sealing surface between said first male connection portion and a plurality of said first bolt through holes.
6. The sealing flange of claim 1, wherein the second flange plate comprises a second protruding connection portion and a second flange ring, the second flange ring is disposed on the periphery of the second protruding connection portion, and a plurality of second bolt through holes are uniformly disposed on the second flange ring.
7. The sealing flange of claim 6, wherein the stepped groove surface structure is provided at an end surface of the second flange ring in an axial direction away from the second boss connecting portion.
8. The sealing flange according to claim 7, wherein the stepped groove surface structure is located on a sealing surface between the second boss connecting portion and the plurality of second bolt through holes in a radial direction.
9. The sealing flange according to claim 2, wherein the stepped dovetail face structure is double-layered, and is divided into an inner step and an outer step in turn in a radial direction outward, the inner step being higher than the outer step, and the stepped groove face structure is divided into double-layered, and is divided into an inner groove and an outer groove in turn in a radial direction outward, the inner groove being lower than the outer groove.
10. The sealing flange of claim 9, wherein the inner layer gasket is configured to fit between the inner layer step and the inner layer groove and the outer layer gasket is configured to fit between the outer layer step and the outer layer groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420457399.5U CN222503057U (en) | 2024-03-11 | 2024-03-11 | A sealing flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420457399.5U CN222503057U (en) | 2024-03-11 | 2024-03-11 | A sealing flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222503057U true CN222503057U (en) | 2025-02-18 |
Family
ID=94545129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420457399.5U Active CN222503057U (en) | 2024-03-11 | 2024-03-11 | A sealing flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222503057U (en) |
-
2024
- 2024-03-11 CN CN202420457399.5U patent/CN222503057U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101122338B (en) | Non-asbestos seal gasket | |
| US12287046B2 (en) | Valve seat, plug valve, and fracturing manifold | |
| KR101257899B1 (en) | Shaft sealing device | |
| US9976680B2 (en) | Seal element for isolation gasket | |
| CN106641513A (en) | Double-channel metal dished ring flange sealing structure applicable to long-term storage | |
| CN222503057U (en) | A sealing flange | |
| CN206338514U (en) | A flange sealing structure suitable for simultaneously bearing internal and external pressure | |
| CN221525545U (en) | High-pressure sealing metal gasket | |
| CN212251496U (en) | Pipeline sealing structure of aircraft engine and aircraft engine | |
| CN108131517A (en) | A flange sealing structure suitable for simultaneously bearing internal and external pressure | |
| CN212509946U (en) | Sealing structure of flange | |
| KR101889092B1 (en) | Gasket | |
| CN217003537U (en) | A gasket with excellent sealing performance | |
| US12158224B2 (en) | Housing type pipe joint | |
| CN210106575U (en) | High pressure flange sealing structure for heat exchange device header | |
| CN222502668U (en) | High-pressure pipeline seal | |
| CN113700959B (en) | Sealing structure | |
| CN220828506U (en) | Composite sealing element and gear box | |
| CN217898764U (en) | Valve type oil seal ring | |
| CN219712310U (en) | High-pressure sealing ring | |
| CN205190736U (en) | Many times way metal seal gaskets | |
| CN219796076U (en) | Leak protection sealing washer convenient to installation location | |
| CN111609232A (en) | Sealing structure of flange | |
| CN211259937U (en) | Flange plate for automobile | |
| CN222067914U (en) | Hydraulic pipe joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |