CN203906779U - Low-stress high-efficiency sealing gasket - Google Patents
Low-stress high-efficiency sealing gasket Download PDFInfo
- Publication number
- CN203906779U CN203906779U CN201420339401.5U CN201420339401U CN203906779U CN 203906779 U CN203906779 U CN 203906779U CN 201420339401 U CN201420339401 U CN 201420339401U CN 203906779 U CN203906779 U CN 203906779U
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- China
- Prior art keywords
- ring
- steel band
- expanded graphite
- interior
- flexible graphite
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- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 80
- 239000010959 steel Substances 0.000 claims abstract description 80
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 65
- 229910002804 graphite Inorganic materials 0.000 abstract description 17
- 239000010439 graphite Substances 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 11
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model relates to a low-stress high-efficiency sealing gasket. The low-stress high-efficiency sealing gasket comprises a flexible graphite ring, wherein an inner steel band ring surrounds the inner side of the flexible graphite ring and an outer steel band ring surrounds the outer side of the flexible graphite ring; an outer ring is further arranged outside the outer steel band ring, the inner side of the outer ring is provided with an outer ring inner groove, and after the flexible graphite ring is compressed, the outer steel band ring is deformed and squeezed into the outer ring inner groove. The low-stress high-efficiency sealing gasket has the advantages that since pure flexible graphite is used as a sealing element, the sealing gasket has a permanent deformation and restoration function and the compression resilience ratio is larger; since the compression resilience ratio is larger by using the pure flexible graphite as the sealing element, the pretightening force needed for reaching a good sealing effect is smaller; the sealing effect is good, the seal leakage rate is low and the high and low temperature resisting range is wide; the production process is simple and convenient and force only needs to be applied to a flexible graphite ribbon after the flexible graphite ribbon, the inner steel band ring and the outer steel band ring are completely wound.
Description
Technical field
The utility model relates to a kind of gasket seal.
Background technique
Traditional gasket seal is wound gasket mostly, and the basic model of wound gasket is alternately entwined by flexible graphite belt and steel band, and due to the existence of this sheet metal strip of steel band, its compression rebound rate is lower.And wound gasket to reach the required pretightening force of sealing effect higher, seal leakage rate need to reduce.Aspect production technology, the wound gasket in process of production winding of steel band is cumbersome, and the installation outside interior ring need to manually be assembled, very effort.
Summary of the invention
In order to overcome the above-mentioned deficiency of existing wound gasket, the utility model provide a kind of compression rebound high, seal that required pretightening force is low, seal leakage rate is low, produce the efficient sealed pad of easy low stress.
The technical scheme in the invention for solving the technical problem is: the efficient sealed pad of low stress, comprise Expanded graphite ring, and the inner side of described Expanded graphite ring is surrounded with interior steel band ring, and the outer ring of described Expanded graphite ring is wound with outer steel band ring;
Described outer steel band ring also has an outer shroud outward, and the inner side of described outer shroud has an outer shroud inner groovy, and after described Expanded graphite ring pressurized, described outer steel band annular strain is clamp-oned in described outer shroud inner groovy.
Further, also have an interior ring in described interior steel band ring, the outside of described interior ring has an interior ring inner groovy, and after described Expanded graphite ring pressurized, described interior steel band annular strain is clamp-oned in described interior ring inner groovy.
Further, described outer steel band ring and interior steel band ring are laminated by a few thin steel bands.
Further, in described Expanded graphite ring, be also embedded with thickness be 5～7 in bury steel band.
Further, the thickness of described Expanded graphite ring is greater than the thickness of described outer steel band ring and the thickness of interior steel band ring.
The manufacture method of the efficient sealed pad of above-mentioned low stress, comprises the following steps:
First flexible graphite belt is wound into the Expanded graphite ring with certain width, afterwards in the inside winding of Expanded graphite ring steel band ring, outside reeling in the outside of Expanded graphite ring steel band ring;
Then get inner side and have the outer shroud of outer shroud inner groovy and be fixed, Expanded graphite circulating application is pressed, by outer steel band hoop outer shroud inner groovy direction extruding, thereby outer steel band annular strain is clamp-oned in described outer shroud inner groovy.
The manufacture method of the above-mentioned efficient sealed pad of low stress with interior ring and outer shroud, comprises the following steps:
First flexible graphite belt is wound into and there is certain thickness Expanded graphite ring, afterwards in the inside winding of Expanded graphite ring steel band ring, outside reeling in the outside of Expanded graphite ring steel band ring;
Then get inner side and there is the outer shroud of outer shroud inner groovy and be fixed, outside getting, have in interior ring inner groovy and encircle and be fixed;
Again Expanded graphite circulating application is pressed, thereby thereby the outer steel band annular strain of outer steel band hoop outer shroud inner groovy direction extruding is clamp-oned in described outer shroud inner groovy, clamp-oned in described interior ring inner groovy encircling the interior steel band annular strain of inner groovy direction extruding in interior steel band hoop.
The utility model in use, is clamped between flange, thereby Expanded graphite ring place formation sealing surface reaches sealing effect under the effect of pretightening force.
The beneficial effects of the utility model are: 1. the utility model, taking pure Expanded graphite as seal element, has permanent deformation and reset function, and its compression rebound rate is larger.2. taking pure Expanded graphite as seal element, compression rebound rate is larger, therefore reaches the required pretightening force of sealing effect lower.3. good sealing effect, seal leakage rate is low, and high low temperature resistance range is wide.4. production process is easy, after reeled flexible graphite belt and inside and outside steel band ring, only need exert pressure to flexible graphite belt.
Brief description of the drawings
Fig. 1 is embodiment one sectional view.
Fig. 2 is embodiment two sectional view.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment one
The efficient sealed pad of low stress, comprises Expanded graphite ring 1, and the inner side of described Expanded graphite ring 1 is surrounded with interior steel band ring 2, and the outer ring of described Expanded graphite ring 1 is wound with outer steel band ring 3;
The outer outer shroud 4 in addition of described outer steel band ring 3, the inner side of described outer shroud 4 has an outer shroud inner groovy, and outer steel band ring 3 distortion described after described Expanded graphite ring 1 pressurized are clamp-oned in described outer shroud inner groovy.Outer steel band ring 3 described in the present embodiment and interior steel band ring 2 are laminated by a few thin steel bands.Outer shroud 4 can adopt carbon steel, stainless steel etc.
The thickness of the ring of Expanded graphite described in the present embodiment 1 is greater than the thickness of described outer steel band ring 3 and the thickness of interior steel band ring 2, makes to expand in use the sealing area of Expanded graphite ring 1 as far as possible.
Also can in described Expanded graphite ring 1, be embedded with thickness and be 5～7 in bury steel band, improve mechanical strength and compression rebound rate.
The manufacture method of the efficient sealed pad of above-mentioned low stress, comprises the following steps:
First flexible graphite belt is wound into the Expanded graphite ring 1 with certain width, afterwards in the inside winding of Expanded graphite ring 1 steel band ring 2, outside reeling in the outside of Expanded graphite ring 1 steel band ring 2;
Then get inner side and there is the outer shroud 4 of outer shroud inner groovy and be fixed, Expanded graphite ring 1 is exerted pressure, outer steel band ring 3, to the extruding of outer shroud inner groovy direction, is clamp-oned in described outer shroud inner groovy thereby outer steel band ring 3 is out of shape.In also needing while burying steel band in having to be wound around, bury steel band.
In use, be clamped between flange, thereby Expanded graphite ring place formation sealing surface reaches sealing effect under the effect of pretightening force.
Embodiment two
The efficient sealed pad of low stress, comprises Expanded graphite ring 1, and the inner side of described Expanded graphite ring 1 is surrounded with interior steel band ring 2, and the outer ring of described Expanded graphite ring 1 is wound with outer steel band ring 3;
The outer outer shroud 4 in addition of described outer steel band ring 3, the inner side of described outer shroud 4 has an outer shroud inner groovy, and outer steel band ring 3 distortion described after described Expanded graphite ring 1 pressurized are clamp-oned in described outer shroud inner groovy.In described interior steel band ring 2, also have an interior ring 5, the outside of described interior ring 5 has an interior ring inner groovy, and interior steel band ring 2 distortion described after described Expanded graphite ring 1 pressurized are clamp-oned in described interior ring inner groovy.Outer steel band ring 3 described in the present embodiment and interior steel band ring 2 are laminated by a few thin steel bands.Outer shroud 4, interior ring 5 can adopt carbon steel, stainless steel etc.
The thickness of the ring of Expanded graphite described in the present embodiment 1 is greater than the thickness of described outer steel band ring 3 and the thickness of interior steel band ring 2, makes to expand in use the sealing area of Expanded graphite ring as far as possible.
Also can in described Expanded graphite ring 1, be embedded with thickness and be 5～7 in bury steel band, improve mechanical strength and compression rebound rate.
The manufacture method of the efficient sealed pad of above-mentioned low stress, comprises the following steps:
First flexible graphite belt is wound into and there is certain thickness Expanded graphite ring 1, afterwards in the inside winding of Expanded graphite ring 1 steel band ring 2, outside reeling in the outside of Expanded graphite ring 1 steel band ring 3;
Then get inner side and there is the outer shroud 4 of outer shroud inner groovy and be fixed, get outside and there is the interior ring 5 of interior ring inner groovy and be fixed;
Again Expanded graphite ring 1 is exerted pressure, thereby thereby steel band ring 3 distortion outside the extruding of outer shroud inner groovy direction of outer steel band ring 3 are clamp-oned in described outer shroud inner groovy, interior steel band ring 2 distortion of the inside ring inner groovy of interior steel band ring 2 direction extruding are clamp-oned in described interior ring inner groovy.In also needing while burying steel band in having to be wound around, bury steel band.
In use, be clamped between flange, thereby Expanded graphite ring place formation sealing surface reaches sealing effect under the effect of pretightening force.
Claims (5)
1. the efficient sealed pad of low stress, comprises Expanded graphite ring, it is characterized in that: the inner side of described Expanded graphite ring is surrounded with interior steel band ring, and the outer ring of described Expanded graphite ring is wound with outer steel band ring;
Described outer steel band ring also has an outer shroud outward, and the inner side of described outer shroud has an outer shroud inner groovy, and after described Expanded graphite ring pressurized, described outer steel band annular strain is clamp-oned in described outer shroud inner groovy.
2. the efficient sealed pad of low stress as claimed in claim 1, it is characterized in that: in described interior steel band ring, also have an interior ring, the outside of described interior ring has an interior ring inner groovy, and after described Expanded graphite ring pressurized, described interior steel band annular strain is clamp-oned in described interior ring inner groovy.
3. the efficient sealed pad of low stress as claimed in claim 1, is characterized in that: described outer steel band ring and interior steel band ring are laminated by a few thin steel bands.
4. the efficient sealed pad of the low stress as described in one of claim 1～3, is characterized in that: in described Expanded graphite ring, be also embedded with thickness and be 5～7 in bury steel band.
5. the efficient sealed pad of the low stress as described in one of claim 1～3, is characterized in that: the thickness of described Expanded graphite ring is greater than the thickness of described outer steel band ring and the thickness of interior steel band ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339401.5U CN203906779U (en) | 2014-06-13 | 2014-06-13 | Low-stress high-efficiency sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339401.5U CN203906779U (en) | 2014-06-13 | 2014-06-13 | Low-stress high-efficiency sealing gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906779U true CN203906779U (en) | 2014-10-29 |
Family
ID=51781060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420339401.5U Expired - Lifetime CN203906779U (en) | 2014-06-13 | 2014-06-13 | Low-stress high-efficiency sealing gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906779U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074975A (en) * | 2014-06-13 | 2014-10-01 | 慈溪市恒立密封材料有限公司 | Low-stress efficient sealing gasket and manufacturing method thereof |
| CN108331920A (en) * | 2018-03-08 | 2018-07-27 | 苏州天沃环境能源工程有限公司 | Gasket seal in solid caustic soda production equipment |
| CN112524365A (en) * | 2020-12-17 | 2021-03-19 | 中国成达工程有限公司 | Combined sealing gasket suitable for various working conditions |
-
2014
- 2014-06-13 CN CN201420339401.5U patent/CN203906779U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074975A (en) * | 2014-06-13 | 2014-10-01 | 慈溪市恒立密封材料有限公司 | Low-stress efficient sealing gasket and manufacturing method thereof |
| CN108331920A (en) * | 2018-03-08 | 2018-07-27 | 苏州天沃环境能源工程有限公司 | Gasket seal in solid caustic soda production equipment |
| CN112524365A (en) * | 2020-12-17 | 2021-03-19 | 中国成达工程有限公司 | Combined sealing gasket suitable for various working conditions |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |