CN101435506B - Prestress sealing gasket - Google Patents
Prestress sealing gasket Download PDFInfo
- Publication number
- CN101435506B CN101435506B CN 200810136540 CN200810136540A CN101435506B CN 101435506 B CN101435506 B CN 101435506B CN 200810136540 CN200810136540 CN 200810136540 CN 200810136540 A CN200810136540 A CN 200810136540A CN 101435506 B CN101435506 B CN 101435506B
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- main body
- ring
- sealing gasket
- restriction
- gasket
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- 238000007789 sealing Methods 0.000 title claims abstract description 30
- 239000002184 metal Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
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Abstract
The invention discloses a pre-stress sealing gasket. The gasket comprises a ring-shaped sealing gasket main body, wherein the sealing gasket main body can be elastically deformed along the radial direction while receiving axial pressure, the edge of the inner circumference of the sealing gasket main body is provided with a limitation inner ring, the edge of the outer circumference of the sealing gasket main body is provided with a limitation outer ring, at least one of the limitation inner ring and the limitation outer ring is the elastic ring, and the limitation inner ring and the limitation outer ring jointly act on the sealing gasket main body; when the limitation inner ring is the elastic ring, and when the sealing gasket main body is elastically deformed, the limitation inner ring generates a load along the radial direction outward on the sealing gasket main body; and when the limitation outer ring is the elastic ring, and when the sealing gasket main body is elastically deformed, the limitation outer ring generates a load along the radial direction inward on the sealing gasket main body. Compared with the prior art, the pre-stress sealing gasket has the advantages of forcing the sealing gasket main body to shrink more quickly, improving the sealing performance, making the sealing gasket main body continuously effective and having longer service life.
Description
Technical field
The present invention relates to a kind of gasket seal.
Background technique
In the prior art, gasket seal is various informative, but lower in working order, and the compression of gasket seal and resilience mainly are the characteristic effects by material itself, that is: mainly rely on the resilience of material itself to finish rebound, this resilience that produces by the material self character, limited first, second under the effect of the complex working conditions such as temperature, pressure, medium, very easily decay, thereby cause the resilience disappearance, cause the effective specific pressure of sealing to descend, cause that finally reduce sealing life or inefficacy.
Summary of the invention
The technical problem to be solved in the present invention is by pad being loaded the mode of radial load, provides that a kind of sealability is better, longer prestress sealing gasket of life-span.
In order to achieve the above object, the technical solution used in the present invention is: a kind of prestress sealing gasket, the gasket seal main body that comprises annular, the sealing gasket body can produce radially resiliently deformable when being subject to axial pressure, ring in the restriction is installed on the inner circumferential edge of described gasket seal main body, the restriction outer shroud is installed on the outer circumferential edges, in described restriction, have at least a ring to be set to elastic ring in ring and the restriction outer shroud, this elastic ring can produce resiliently deformable radially when being subject to radial effect power, and in the radial deformation process, described gasket seal main body is produced radially reaction force, ring and restriction outer shroud work to described gasket seal main body jointly in the described restriction, when ring is elastic ring in the described restriction, when gasket seal main body generation resiliently deformable, ring can produce a radially outside active force to described gasket seal body in the described restriction, when described restriction outer shroud is elastic ring, when gasket seal main body generation resiliently deformable, described restriction outer shroud can produce a radially inside active force to described gasket seal body.
Adopt prestress sealing gasket ring and restriction outer shroud in the inside and outside circumferential edges of the gasket seal main body of prior art is installed respectively restriction of technique scheme, wherein at least one ring is elastic ring, and this elastic ring can play axially to end to the gasket seal body and press and the radial compensation effect; When the situations such as pressure medium, temperature, the variation of clamping bolt power, sealing material stress relaxation occur, making the gasket seal main body be subject to axial force becomes when producing radial expansion greatly, described elastic ring can absorb and store this part stress, the axial force that is subject to when the gasket seal main body diminishes and when producing radial contraction, described elastic ring again can release portion stress, come the radial stress of compensate gasket main body, and be converted into the axial expansion of gasket body, thereby guarantee the sealing continuous and effective.
In the preferred scheme, ring and restriction outer shroud all are set to elastic ring in the described restriction.Such two elastic rings guarantee the sealing of pad simultaneously to its effect of gasket seal body.
Ring can be preferably closed ring or trip ring in the described restriction.
Described restriction outer shroud can be preferably closed ring or trip ring.
In another preferred version, only described restriction outer shroud is arranged to elastic ring in ring and the restriction outer shroud in the described restriction.
Because the application of technique scheme, prestress sealing gasket of the present invention are compared with prior art, sealability is better, the life-span is longer.
Description of drawings
The present invention will be further described in detail below in conjunction with accompanying drawing and concrete mode of execution:
Accompanying drawing 1 is the plan view of prestress sealing gasket of the present invention;
Accompanying drawing 2 is that accompanying drawing 1 is along the sectional view (mode of execution one) of A-A direction;
Accompanying drawing 3 is the disassembly diagram of accompanying drawing 2;
Accompanying drawing 4 is disassembled schematic representation for the end face of gasket seal in the mode of execution two;
Accompanying drawing 5 is disassembled schematic representation for the end face of gasket seal in the mode of execution three;
Wherein: 1, gasket seal main body; 11, housing; 12 elastic elements; 13, gas; 2, ring in the restriction; 3, restriction outer shroud.
Embodiment
Prestress sealing gasket as shown in Figure 1, it has the gasket seal main body 1 of a ring, is coated with ring 2 in the restriction on the inner circumferential edge of gasket seal main body 1, and outer circumferential edges is coated with a restriction outer shroud 3.Wherein, restriction outer shroud 3 is for having an elastic metallic ring of opening, and the interior ring 2 of restriction is one elastically-deformable closed metal ring can not occur.When being subject to radial load and when producing radially resiliently deformable, restriction outer shroud 3 can produce a radially inside load to gasket seal body 1 in the radial deformation process in gasket seal main body 1.
When pressure medium occurs, temperature, clamping bolt power changes, the situations such as sealing material stress relaxation, making gasket seal main body 1 be subject to axial force becomes when producing radial expansion greatly, can absorb and store this part stress can for gasket seal main body 1 part the restriction outer shroud 3 that radial load is provided and the acting in conjunction that limits outer shroud 2, the axial force that is subject to when gasket seal main body 1 diminishes and when producing radial contraction, ring 2 again can release portion stress in restriction outer shroud 3 and the restriction, the radial load that provides for gasket seal main body 1 is provided, and be converted into the axial resilience of gasket seal main body 1, thereby guarantee the sealing continuous and effective.
The below explains the various mode of executions of gasket seal body 1:
In the mode of execution one shown in Fig. 2～3, gasket seal body 1 is a kind of bellows seal gasket body, it comprises the elastic element 12 that is interspersed with a waveform in the seal casinghousing 11, housing 11 of an annular, be full of compressible gas 13 in the seal casinghousing 11, a kind of metal in the mode of execution two as shown in Figure 4 twines the end view of gasket seal main body, the end view of a kind of metallic cover gasket seal main body in the mode of execution three as shown in Figure 5.
Gasket seal main body of the present invention can also adopt other various structures; above-described embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage that is familiar with this art can understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; the equivalence that all Spirit Essences according to the present invention are done changes or modifies, and all should be encompassed in protection scope of the present invention.
Claims (1)
1. prestress sealing gasket, the gasket seal main body (1) that comprises annular, sealing gasket body (1) can produce radially resiliently deformable when being subject to axial pressure, it is characterized in that: ring (2) in the restriction is installed on the inner circumferential edge of described gasket seal main body (1), restriction outer shroud (3) is installed on the outer circumferential edges, described restriction outer shroud (3) is for having an elastic metallic ring of opening, the interior ring of described restriction (2) is one elastically-deformable closed metal ring can not occur, ring (2) and restriction outer shroud (3) work to described gasket seal main body (1) jointly in the described restriction, when resiliently deformable occured described gasket seal main body (1), described restriction outer shroud (3) can produce a radially inside load to described gasket seal body (1); Described gasket seal main body (1) is the bellows seal gasket body, described bellows seal gasket body comprises seal casinghousing, intert waveform elastic element in described seal casinghousing inside, be full of compressible gas in the described seal casinghousing, ring (2), restriction outer shroud (3) contact with described waveform elastic element in the described restriction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810136540 CN101435506B (en) | 2008-12-09 | 2008-12-09 | Prestress sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810136540 CN101435506B (en) | 2008-12-09 | 2008-12-09 | Prestress sealing gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101435506A CN101435506A (en) | 2009-05-20 |
| CN101435506B true CN101435506B (en) | 2013-03-20 |
Family
ID=40710082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810136540 Active CN101435506B (en) | 2008-12-09 | 2008-12-09 | Prestress sealing gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101435506B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2739189B1 (en) * | 2011-08-05 | 2019-07-03 | Obschestvo S Ogranichennoy Otvetstvennostyu "Bork Import" | Blade unit and blender |
| CN102678925B (en) * | 2012-05-23 | 2014-04-16 | 苏州宝骅机械技术有限公司 | Multi-stage constant stress sealing gasket |
| CN102865364B (en) * | 2012-09-14 | 2015-03-11 | 中国五环工程有限公司 | Metal winding type gasket, inner ring, centering ring and metal winding type gasket component |
| CN107143615A (en) * | 2017-06-29 | 2017-09-08 | 湖北威能达驱动技术系统有限公司 | A kind of shell fragment prestressing force seal combination |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1017294A (en) * | 1962-10-25 | 1966-01-19 | Henry Joseph Quinson | Sealing gaskets |
| CN2497113Y (en) * | 2001-08-15 | 2002-06-26 | 成都华西化工研究所 | Lip-shape sealing ring |
| CN100389279C (en) * | 2006-04-06 | 2008-05-21 | 马志刚 | Metal tube circular moulded sealing washer and its mfg. method |
-
2008
- 2008-12-09 CN CN 200810136540 patent/CN101435506B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1017294A (en) * | 1962-10-25 | 1966-01-19 | Henry Joseph Quinson | Sealing gaskets |
| CN2497113Y (en) * | 2001-08-15 | 2002-06-26 | 成都华西化工研究所 | Lip-shape sealing ring |
| CN100389279C (en) * | 2006-04-06 | 2008-05-21 | 马志刚 | Metal tube circular moulded sealing washer and its mfg. method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101435506A (en) | 2009-05-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Suzhou Baohua Mechanical Technology Co., Ltd. Assignor: Ma Zhigang Contract record no.: 2011990001074 Denomination of invention: Prestress sealing gasket License type: Exclusive License Open date: 20090520 Record date: 20111206 |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161222 Address after: Shuangfeng town Taicang city Suzhou City, Jiangsu province 215415 rich economic development zone Patentee after: Suzhou Baohua Mechanical Technology Co., Ltd. Address before: 215415 Taicang City, Jiangsu province Shuangfeng town Taicang City Economic Development Zone BMW Regal sealing material Co. Patentee before: Ma Zhigang |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Shuangfeng town Taicang city Suzhou City, Jiangsu province 215415 rich economic development zone Patentee after: Suzhou Bao Hua sealing Polytron Technologies Inc Address before: Shuangfeng town Taicang city Suzhou City, Jiangsu province 215415 rich economic development zone Patentee before: Suzhou Baohua Mechanical Technology Co., Ltd. |