CN203963322U - A kind of low pretension specific pressure sealing gasket - Google Patents
A kind of low pretension specific pressure sealing gasket Download PDFInfo
- Publication number
- CN203963322U CN203963322U CN201420411811.6U CN201420411811U CN203963322U CN 203963322 U CN203963322 U CN 203963322U CN 201420411811 U CN201420411811 U CN 201420411811U CN 203963322 U CN203963322 U CN 203963322U
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- China
- Prior art keywords
- sealing gasket
- circular groove
- main body
- circle
- specific pressure
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of low pretension specific pressure sealing gasket, is made up of loop configuration main body and retaining circle; The upper and lower two-layer of described loop configuration main body is composite sheet, and middle is spurt plate; Described retaining circle is circular groove, and its cross section is similar to U-shaped; Described channel opening is to outer shroud direction; The width at the open-ended place of described circular groove coordinates with the thickness of main body, and in the bi-side of the nearly bottom of circular groove, at least one side is provided with outside at least one circle projection.The technical program has reduced sealing gasket preload pressure, has improved sealing gasket sealability, has solved the leakage problem of low pretension specific pressure lower seal pad.
Description
Technical field
The utility model belongs to seal for pipe joints technical field, is specifically related to a kind of low pretension specific pressure sealing gasket.
Background technique
In order to ensure the sealability of pipe interface flange face, often to select at flange and install sealing gasket additional, the type selecting of sealing gasket can directly affect the sealability of this place's flange-interface.Generally, flange-interface place seal request is higher, and the requirement of the pre-pressing force to sealing gasket is also higher.
The conventional sealing of prior art is lined with two kinds of structures, and one is by making a spurt plate structure 101 together with lamination layer structure 102 punching presses, forming " sandwich " structure, as shown in Figure 1.The problem that sealing mat structure exists is that the sealing gasket pressure that can seal is low; Easily there is infiltration leakage in sealing gasket.
The second sealing gasket Chang Yousan layer sheet metal 103 welds together, and forms " sandwich " structure as shown in Figure 2.The problem that sealing mat structure exists is that this kind of required pretension specific pressure of sealing gasket is very high, and when use, under hot environment, flanged surface connects the bolt using and easily ruptures.
Model utility content
The purpose of this utility model is to provide one can be in applied at elevated temperature environment, and under low pretension specific pressure, the sealing gasket that solves sealing gasket leakage problem improves structure technology scheme.
The utility model is achieved through the following technical solutions:
A kind of low pretension specific pressure sealing gasket, includes loop configuration main body and retaining circle;
Described main body includes three-decker, and upper and lower two-layer is composite sheet, and middle is spurt plate;
Described retaining circle is circular groove, and described circular groove cross section is similar to U-shaped; Described circular groove outward opening ring direction, the width at the open-ended place of described circular groove coordinates with the thickness of main body, and in the bi-side of the nearly bottom of described circular groove, at least one side is provided with outside at least one circle projection;
Described retaining circle is enclosed within described loop configuration main body from the interior collar extension of described loop configuration main body.
On the bi-side of the nearly bottom of described circular groove, be provided with the outside projection of a circle.
On each side of the nearly bottom of described circular groove, be provided with the outside projection of two circles.
The groove depth of described retaining circle is not less than 1/3rd of described loop configuration main body ring width.
Useful technique effect of the present utility model is:
The utility model can make there is a good equilibrium relation between the sealability of sealing gasket and pre-pressing force, makes sealing gasket in applied at elevated temperature environment, under low pretension specific pressure, solve the leakage problem of sealing gasket.
Brief description of the drawings
Fig. 1 is the cross-sectional view of prior art I;
Fig. 2 is the cross-sectional view of prior art II;
Fig. 3 is the cross-sectional view of the present embodiment.
Symbol description: the 101-plate structure of making a spurt; 102-lamination layer structure; 103-sheet metal; The 1-plate of making a spurt; 2-composite sheet; 3-retaining circle.
Embodiment
Describe the technical solution of the utility model by specific embodiment below, following instance is only exemplary, only can be used for explaining and explanation the technical solution of the utility model, and can not to be interpreted as is the restriction to technical solutions of the utility model.
Fig. 3 is the schematic diagram of the application's a specific embodiment.
The low pretension specific pressure sealing gasket of the present embodiment, for the sealing of flange-interface, is made up of loop configuration main body and retaining circle; Loop configuration main body has three-decker, and upper and lower two-layer is composite sheet 2, and middle is spurt plate 1, and three-decker is stamped to form.
Retaining circle 3 is circular groove, and its cross section is similar to U-shaped; Circular groove outward opening ring direction; The width at the open-ended place of circular groove coordinates with the thickness of loop configuration main body; The bi-side of the nearly bottom of circular groove are respectively provided with an outside circle projection.In other embodiments of the application, can be according to actual seal request and pretension specific pressure, a circle or two circle projections are set on the one or both sides face of the nearly bottom of circular groove.
Described retaining circle is enclosed within loop configuration main body from the interior collar extension of loop configuration main body, and the groove depth of retaining circle is not less than 1/3rd of loop configuration main body ring width.
With respect to existing scheme one, under identical preload pressure, this kind of sealing gasket sealability is greatly improved; With respect to multi-layered sheet welded seal pad, this kind of sealing gasket preload pressure is low, and cost is low, and while use under hot environment, the bolt of connecting flange faces is difficult for rupturing.
The utility model has reduced sealing gasket preload pressure, has improved sealing gasket sealability.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that not departing from principle of the present utility model and spirit and can carry out multiple variation, amendment, replacement and modification to these embodiments, scope of the present utility model is by claims and be equal to and limit.
Claims (4)
1. a low pretension specific pressure sealing gasket, is characterized in that: include loop configuration main body and retaining circle;
Described main body includes three-decker, and upper and lower two-layer is composite sheet, and middle is spurt plate;
Described retaining circle is circular groove, and described circular groove cross section is similar to U-shaped; Described circular groove outward opening ring direction, the width at the open-ended place of described circular groove coordinates with the thickness of main body, and in the bi-side of the nearly bottom of described circular groove, at least one side is provided with outside at least one circle projection;
Described retaining circle is enclosed within described loop configuration main body from the interior collar extension of described loop configuration main body.
2. low pretension specific pressure sealing gasket according to claim 1, is characterized in that: on the bi-side of the nearly bottom of described circular groove, be provided with the outside projection of a circle.
3. low pretension specific pressure sealing gasket according to claim 1, is characterized in that: on each side of the nearly bottom of described circular groove, be provided with the outside projection of two circles.
4. low pretension specific pressure sealing gasket according to claim 1, is characterized in that: the groove depth of described retaining circle is not less than 1/3rd of described loop configuration main body ring width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411811.6U CN203963322U (en) | 2014-07-21 | 2014-07-21 | A kind of low pretension specific pressure sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411811.6U CN203963322U (en) | 2014-07-21 | 2014-07-21 | A kind of low pretension specific pressure sealing gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203963322U true CN203963322U (en) | 2014-11-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420411811.6U Expired - Fee Related CN203963322U (en) | 2014-07-21 | 2014-07-21 | A kind of low pretension specific pressure sealing gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203963322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864537A (en) * | 2016-05-24 | 2016-08-17 | 马鞍山宏力橡胶制品有限公司 | Novel flange seal washer |
-
2014
- 2014-07-21 CN CN201420411811.6U patent/CN203963322U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864537A (en) * | 2016-05-24 | 2016-08-17 | 马鞍山宏力橡胶制品有限公司 | Novel flange seal washer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20190721 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |