CN214789008U - Sealing gasket - Google Patents
Sealing gasket Download PDFInfo
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- CN214789008U CN214789008U CN202120638539.5U CN202120638539U CN214789008U CN 214789008 U CN214789008 U CN 214789008U CN 202120638539 U CN202120638539 U CN 202120638539U CN 214789008 U CN214789008 U CN 214789008U
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- gasket
- sealing
- hole
- gasket body
- corrugated
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Abstract
The utility model relates to the technical field of gaskets and discloses a sealing gasket which comprises a gasket body and at least one circle of corrugated sealing part formed on the gasket body; the gasket body is adapted to two flange surfaces to be sealed, and is provided with a middle through hole; the corrugated sealing portion surrounds the middle through hole, the corrugated sealing portion is along the thickness direction of the gasket body is in a curve shape, and the corrugated sealing portion is in a wave shape along the circumferential direction of the middle through hole. This seal gasket is when the not hard up interval grow of flange face, because it can produce stronger resilience effect to can produce sufficient line pressure and guarantee sealedly, avoid because the not enough gas leakage phenomenon that causes of face pressure of the good face that leads to of gasket resilience.
Description
Technical Field
The utility model relates to a gasket technical field, in particular to seal gasket.
Background
The wave-generating gasket can be used in a flange face sealing structure and needs to have good elasticity, compressive impact resistance and other properties. In the prior art, as shown in fig. 1, a conventional wave-generating gasket 01 has a circular corrugation 02. When the flange surface is loose, the corrugation can be diffused towards two sides when pressure is received, and when the deformation limit is reached, the corrugation can be reacted to provide surface pressure for the flange surface, so that a linear sealing effect is formed. However, when the flange surface loosening distance becomes large, the surface pressure of the flange surface is reduced, the flange surface is sealed through the wave-forming gasket in fig. 1, the deformation limit cannot be reached, the surface pressure of the flange surface is small due to the reaction, a good rebound effect cannot be generated, the deformation is difficult to recover to form effective surface pressure, and air leakage is easy to occur when the flange surface is slightly loosened due to the vibration high-temperature effect.
SUMMERY OF THE UTILITY MODEL
The utility model provides a seal gasket, above-mentioned seal gasket produce sufficient line pressure and guarantee sealedly, avoid because the not good gas leakage phenomenon that leads to the face pressure to insufficiently arouse of gasket resilience.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a sealing gasket comprises a gasket body and at least one circle of corrugated sealing part formed on the gasket body;
the gasket body is adapted to two flange surfaces to be sealed, and is provided with a middle through hole;
the corrugated sealing portion surrounds the middle through hole, the corrugated sealing portion is along the thickness direction of the gasket body is in a curve shape, and the corrugated sealing portion is in a wave shape along the circumferential direction of the middle through hole.
The embodiment of the utility model provides a seal gasket, when receiving the face that the flange face was applyed and pressing F, along the thickness direction of gasket, every regional extending direction to both sides diffusion along this region of perpendicular to of ripple sealing, and because ripple sealing is the wave along the circumference of middle via hole, make ripple sealing along the direction of two adjacent regional diffusions that the equidirectional extension extends different, the diffusion of the ripple sealing of two nearer distances warp to push mutually and form elasticity and force the other side to kick-back, be similar to the elastic construction of spring, when the not hard up interval grow of flange face, because its spring effect can produce stronger resilience effect, thereby produce sufficient line pressure and guarantee sealedly, avoid because the not enough gas leakage phenomenon that arouses of face pressure that leads to well of gasket resilience.
Optionally, the corrugated sealing portion includes a plurality of straight line portions and a plurality of curved line portions, the straight line portions are disposed around the intermediate via hole, each straight line portion extends along a normal direction of an edge of the intermediate via hole, and each curved line portion connects two adjacent straight line portions.
Optionally, the straight portion and the curved portion are connected smoothly.
Optionally, the straight line portions are uniformly distributed along the circumferential direction of the intermediate via hole.
Optionally, the middle via hole is circular, and the straight line portion is disposed along a radial direction of the middle via hole.
Optionally, the gasket body is provided with a plurality of connection holes.
Optionally, the connection hole is located in an area surrounded by two adjacent linear portions and a curved portion connecting the two adjacent linear portions.
Optionally, the gasket body is a metal foil.
Optionally, a plurality of turns of the corrugated seal are included.
Drawings
FIG. 1 is a schematic diagram of a prior art gasket;
fig. 2 is a schematic structural diagram of a sealing gasket according to an embodiment of the present invention;
fig. 3 is a state diagram of a corrugated sealing portion according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 2 and 3, the present invention provides a sealing gasket, which includes a gasket body 1 and at least one circle of corrugated sealing portion 2 formed on the gasket body 1;
the gasket body 1 is adapted to two flange surfaces to be sealed, and the gasket body 1 is provided with a middle through hole 11;
the corrugated sealing portion 2 is arranged around the middle through hole 11, the corrugated sealing portion 2 is in a curve shape along the thickness direction of the gasket body 1, as shown in fig. 3, and the corrugated sealing portion 2 is in a wave shape along the circumferential direction of the middle through hole 11, as shown in fig. 2.
The embodiment of the utility model provides a seal gasket, when receiving the face pressure F that the flange face was applyed, along the thickness direction of gasket, every regional extending direction to both sides diffusion along this region of perpendicular to of ripple sealing 2, and because ripple sealing 2 is the wave along the circumference of middle via hole 11, make ripple sealing 2 along the direction of two adjacent regional diffusions that equidirectional extension is different, the diffusion of two close distance ripple sealing 2 warp to push mutually and form elasticity and force the other side resilience, be similar to the elastic construction of spring, when the not hard up interval grow of flange face, can produce stronger resilience effect because its spring effect, thereby produce sufficient line pressure and guarantee sealedly, avoid because the not enough gas leakage phenomenon that causes of face pressure well of gasket resilience.
In a specific embodiment, as shown in fig. 2, the bellows seal portion 2 may include a plurality of straight line portions 21 and a plurality of curved line portions 22, the plurality of straight line portions 21 being disposed around the intermediate via 11, each straight line portion 21 extending in a direction normal to an edge of the intermediate via 11, and each curved line portion 22 connecting two adjacent straight line portions 21. For example, the straight line portion 21 and the curved line portion 22 connected in fig. 2 have different diffusion directions (arrow directions in fig. 2) when they are pressurized, and thus, they have an effect of pressing each other, and a strong spring-back effect can be generated, thereby ensuring sufficient linear pressure to ensure sealing.
In a specific embodiment, the straight line part 21 and the curved line part 22 can be smoothly connected, and the effect of mutual pressing of the straight line part 21 and the curved line part 22 when the straight line part and the curved line part are pressed can be ensured.
In a specific embodiment, the straight portions 21 may be uniformly distributed along the circumferential direction of the middle via hole 11, which may cause each area of the pad to generate a strong spring-back effect.
In a specific embodiment, the middle via hole 11 may have a circular shape, and the straight line portion 21 may be disposed along a radial direction of the middle via hole 11.
In a specific embodiment, the gasket body 1 may be provided with a plurality of connection holes 3.
The connecting hole 3 is located in an area surrounded by two adjacent linear portions 21 and a curved portion 22 connecting the two adjacent linear portions 21, so that the space of the sealing gasket body 1 can be saved, the arrangement space of the corrugated sealing portion 2 is increased, and the sealing effect of the sealing gasket is ensured.
In a specific embodiment, the gasket body 1 may be a metal foil.
In a specific embodiment, the gasket body 1 may be provided with a plurality of turns of the bellows seal portion 2.
It will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments of the present invention 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 (9)
1. A sealing gasket, comprising a gasket body and at least one ring of corrugated sealing part formed on the gasket body;
the gasket body is adapted to two flange surfaces to be sealed, and is provided with a middle through hole;
the corrugated sealing portion surrounds the middle through hole, the corrugated sealing portion is along the thickness direction of the gasket body is in a curve shape, and the corrugated sealing portion is in a wave shape along the circumferential direction of the middle through hole.
2. The gasket seal of claim 1 wherein said bellows seal portion includes a plurality of linear portions disposed about said central via and each extending in a direction normal to the edge of said central via, and a plurality of curved portions each connecting two adjacent linear portions.
3. The sealing gasket of claim 2, wherein there is a smooth connection between said linear portion and said curvilinear portion.
4. The sealing gasket of claim 2, wherein the straight portions are evenly distributed along a circumference of the intermediate via.
5. The sealing gasket of claim 2, wherein the intermediate through hole is circular, and the straight portion is disposed along a radial direction of the intermediate through hole.
6. The sealing gasket of claim 2, wherein the gasket body is provided with a plurality of attachment holes.
7. The sealing gasket of claim 6, wherein the attachment aperture is located in an area bounded by two adjacent linear portions and a curved portion connecting the two adjacent linear portions.
8. The sealing gasket of claim 1, wherein said gasket body is a metal sheet.
9. A sealing gasket according to any of claims 1 to 8, comprising a plurality of turns of the corrugated sealing portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120638539.5U CN214789008U (en) | 2021-03-30 | 2021-03-30 | Sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120638539.5U CN214789008U (en) | 2021-03-30 | 2021-03-30 | Sealing gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214789008U true CN214789008U (en) | 2021-11-19 |
Family
ID=78667700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120638539.5U Active CN214789008U (en) | 2021-03-30 | 2021-03-30 | Sealing gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214789008U (en) |
-
2021
- 2021-03-30 CN CN202120638539.5U patent/CN214789008U/en active Active
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