CN201025303Y - Self-enhancing flexible sealing cushion - Google Patents
Self-enhancing flexible sealing cushion Download PDFInfo
- Publication number
- CN201025303Y CN201025303Y CNU2007200365186U CN200720036518U CN201025303Y CN 201025303 Y CN201025303 Y CN 201025303Y CN U2007200365186 U CNU2007200365186 U CN U2007200365186U CN 200720036518 U CN200720036518 U CN 200720036518U CN 201025303 Y CN201025303 Y CN 201025303Y
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- Prior art keywords
- self
- metal tube
- ring
- special
- metal
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- Expired - Lifetime
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Abstract
A self enhanced flexible seal gasket is arranged including: a metal tube, which is overlapped by two special-shaped metal rings; the soft coatings, which are fixed on the upper surface and the lower surface of the metal tube. The two special-shaped metal rings are welded and fixed in the inner and the outer rings, and a gap is arranged therebetween. A guide pressure hole is provided closing to the inner ring of a least special-shaped metal ring, which is communicated with the gap. The diameter of the guide pressure hole is 0.1-10 mm. Because of the providing of the guide pressure hole, when the seal gasket is fixed between the pipe flanges, the pressure in the tube can be guided to the lumen between the two metal rings by the guide pressure hole, thus to realize the self enhanced function of the seal gasket using the medium pressure, steady the seal ratio pressure and enhance the resistance to pressure of the flexible seal gasket. The metal tube is overlapped by the two special-shaped metal rings, which can be used on a special seal gasket with gluten and other special-shaped structural seal gaskets.
Description
Technical field
The utility model relates to a kind of gasket seal, relates in particular to a kind of flexible sealing gasket.
Background technique
In the prior art, gasket seal is many to make as materials such as asbestos, rubber, because the ability that this kind material meets with stresses is relatively poor, in use for some time, owing to bear the effect of pressure and ambient temperature, gasket seal is easily aging or lax, sealing variation even lose sealability, flexible when mounted distortion has simultaneously influenced sealing effect.The gasket seal that other has metallic material to make, because of metal tube is a hollow, resistance to pressure and compression recovery performance are limited, and Applicable scope is narrower.
Summary of the invention
The utility model purpose provides a kind of self-reinforcing flexible sealing gasket, and its bearing capacity is stronger.
The technical solution of the utility model is: a kind of self-reinforcing flexible sealing gasket, it comprises by the flexible coating on folded metal tube, the upper surface that is installed in described metal tube and the lower surface that forms of two profiled metal circular layers, has the gap between described two profiled metal rings, described two profiled metal rings are fixing at inner ring and the welding of place, outer ring, offering the pressure guide hole that is connected with the gap near the inner ring place at least one profiled metal ring, the bore dia of described pressure guide hole is 0.1～10 millimeter.
In a kind of specific embodiments, can insert packing in the described gap.
Be installed with interior ring on the inner ring of described metal tube, be installed with outer shroud on the outer ring of described metal tube.Interior ring and outer shroud are in the interior outside of metal tube respectively, it is at the interior outside of metal tube banding metal tube, can be in laterally restriction metal tube deformation, and vertically, when flexible coating and metal tube are compressed to height and maintain an equal level with interior ring or outer shroud, the ring and the restriction of outer shroud in degree by compression then is subjected to, thus make this gasket seal avoid by excess compression deformation or be crushed.
Offer groove on the upper surface of described metal tube and the lower surface respectively, the degree of depth of described groove is 0～10 millimeter, the width of described groove is 0～200 millimeter, and described flexible coating is installed in the groove, and described flexible coating protrudes from 0.1～20 millimeter on the surface of metal tube.
All have pressure guide hole on described two profiled metal rings, 1～5000 pressure guide hole is arranged on each special-shaped metal ring.
The utility model has the advantages that: the offering of pressure guide hole, make this gasket seal when installation is applied between the piping flange, pressure in the pipeline can be through in the tube chamber between two metal rings of pressure guide hole importing, realize the self-strengthening of gasket seal to utilize pressure medium, stablize its seal pressure, strengthen the bearing capacity of this flexible sealing gasket.And metal tube constitutes by two profiled metal circular layers are folded, so can apply to the gasket seal of particular band muscle and the gasket seal of other polymorphic structure.
Description of drawings
Accompanying drawing 1 is a plan view of the present utility model;
Accompanying drawing 2 is the sectional drawing at A-A place in the accompanying drawing 1;
Accompanying drawing 3 is the enlarged view at the I place in the accompanying drawing 1;
Wherein: 1, interior ring; 2, outer shroud; 3, profiled metal ring; 4, flexible coating; 5, pressure guide hole; 6, weld seam; 7, gap; 8, packing; 9, groove.
Embodiment
Shown in Fig. 1-3, the utility model relates to a kind of self-reinforcing flexible sealing gasket, it comprises by the flexible coating 4 on two profiled metal rings, the 3 stacked metal tubes that form, the upper surface that is installed in described metal tube and the lower surface, has gap 7 between described two profiled metal rings 3, as shown in Figure 2, form weld seam 6 at the inner ring of two stacked profiled metal rings 3 and the joint of outer ring, described two profiled metal rings 3 are fixing at inner ring and the welding of place, outer ring.
The upper and lower surface of sealing pad is its sealing surface; flexible coating 4 promptly is on the sealing surface; when using installation; gasket seal is between the flange of butt joint pipeline; flexible coating 4 contacts with piping flange; play the effect of seal action and protection metal tube, this is common installation method, does not adopt accompanying drawing to give unnecessary details at this.
Can insert packing 8 in the described gap 7, to strengthen the anti-pressure ability of metal ring.
Rigidity for the enhanced leaktightness pad, ring 1 in being installed with on the inner ring of described metal tube, be installed with outer shroud 2 on the outer ring of described metal tube, in order to laterally to stop the metal tube distortion, simultaneously, when piping flange is compressed to flexible coating 4 and profiled metal ring 3 when maintaining an equal level with interior ring 1 or outer shroud 2, interior ring 1 or outer shroud 2 can stop gasket seal by excess compression or be crushed.
Offering the pressure guide hole 5 that is connected with gap 7 near the inner ring place at least one profiled metal ring 3, the bore dia of described pressure guide hole 5 is 0.1～10 millimeter.See the preferred embodiment that Fig. 2 shows, all have pressure guide hole 5 on described two profiled metal rings 3, on each special-shaped metal ring 3 1～5000 pressure guide hole 5 is arranged, each pressure guide hole 5 all is positioned at the inner ring place near profiled metal ring 3, and is in outside the zone that flexible coating 4 covered.When being installed in the sealing pad between the piping flange, pressure in the pipeline can be through in the gap 7 between the two-layer profiled metal ring 3 of pressure guide hole 5 importings, be subjected to pressure in the gap 7 to increase profiled metal ring 3, thereby increase the seal pressure of gasket seal, realize self-strengthening to utilize pressure medium.
Claims (6)
1. self-reinforcing flexible sealing gasket, it is characterized in that: it comprises by the flexible coating (4) on the stacked metal tube that forms of two profiled metal rings (3), the upper surface that is installed in described metal tube and the lower surface, has gap (7) between described two profiled metal rings (3), described two profiled metal rings (3) are fixing at inner ring and the welding of place, outer ring, at least one profiled metal ring (3) is gone up and is being offered the pressure guide hole (5) that is connected with gap (7) near the inner ring place, and the bore dia of described pressure guide hole (5) is 0.1～10 millimeter.
2. self-reinforcing flexible sealing gasket according to claim 1 is characterized in that: be filled with packing (8) in described gap (7).
3. self-reinforcing flexible sealing gasket according to claim 1 is characterized in that: be installed with interior ring (1) on the inner ring of described metal tube.
4. self-reinforcing flexible sealing gasket according to claim 1 is characterized in that: be installed with outer shroud (2) on the outer ring of described metal tube.
5. self-reinforcing flexible sealing gasket according to claim 1, it is characterized in that: offer groove (9) on the upper surface of described metal tube and the lower surface respectively, the degree of depth of described groove (9) is 0～10 millimeter, the width of described groove (9) is 0～200 millimeter, described flexible coating (4) is installed in the groove (9), and described flexible coating (4) protrudes from 0.1～20 millimeter on the surface of metal tube.
6. self-reinforcing flexible sealing gasket according to claim 1 is characterized in that: all have pressure guide hole (5) on described two profiled metal rings (3), on each special-shaped metal ring (3) 1～5000 pressure guide hole (5) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200365186U CN201025303Y (en) | 2007-03-28 | 2007-03-28 | Self-enhancing flexible sealing cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200365186U CN201025303Y (en) | 2007-03-28 | 2007-03-28 | Self-enhancing flexible sealing cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025303Y true CN201025303Y (en) | 2008-02-20 |
Family
ID=39099164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200365186U Expired - Lifetime CN201025303Y (en) | 2007-03-28 | 2007-03-28 | Self-enhancing flexible sealing cushion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025303Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261473A (en) * | 2011-07-22 | 2011-11-30 | 宁波金杉密封机械有限公司 | Metal vermiculite compound seal gasket |
| CN107642609A (en) * | 2017-09-22 | 2018-01-30 | 慈溪市春潮密封件有限公司 | A kind of self-reinforcing flexible sealing gasket |
| CN110185798A (en) * | 2019-06-24 | 2019-08-30 | 江苏省特种设备安全监督检验研究院 | A kind of self-sealed alloy double bellow seal Composition spacer |
-
2007
- 2007-03-28 CN CNU2007200365186U patent/CN201025303Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261473A (en) * | 2011-07-22 | 2011-11-30 | 宁波金杉密封机械有限公司 | Metal vermiculite compound seal gasket |
| CN102261473B (en) * | 2011-07-22 | 2015-08-26 | 宁波金杉密封机械有限公司 | Metal vermiculite compound seal gasket |
| CN107642609A (en) * | 2017-09-22 | 2018-01-30 | 慈溪市春潮密封件有限公司 | A kind of self-reinforcing flexible sealing gasket |
| CN110185798A (en) * | 2019-06-24 | 2019-08-30 | 江苏省特种设备安全监督检验研究院 | A kind of self-sealed alloy double bellow seal Composition spacer |
| CN110185798B (en) * | 2019-06-24 | 2024-02-27 | 江苏省特种设备安全监督检验研究院 | Self-sealing alloy dual-corrugated sealing composite gasket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 utility model: Self-reinforcing flexible sealing gasket and manufacture method therefor Granted publication date: 20080220 License type: Exclusive License Record date: 20111206 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080220 |
|
| CX01 | Expiry of patent term |