CN201027970Y - Wave-shaped live-pressure four-fluorine sealing washer - Google Patents
Wave-shaped live-pressure four-fluorine sealing washer Download PDFInfo
- Publication number
- CN201027970Y CN201027970Y CNU2007200350373U CN200720035037U CN201027970Y CN 201027970 Y CN201027970 Y CN 201027970Y CN U2007200350373 U CNU2007200350373 U CN U2007200350373U CN 200720035037 U CN200720035037 U CN 200720035037U CN 201027970 Y CN201027970 Y CN 201027970Y
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- China
- Prior art keywords
- waveform
- sealed pad
- gasket
- pressure
- polytetrafluoroethylsealed sealed
- Prior art date
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Abstract
A waveshape movable pressure tetrafluorated gasket seal is characterized in that the surface of the gasket is of a rugged wave shape, and the concave surfaces and convex surfaces are evenly spaced in concentric circles and are staggered. The surface of the gasket is provided with at least one intact waveform corresponding to a contact element.
Description
Technical field
The utility model relates to the gasket seal that is used for case lid joint static, that be installed in pipeline flange and equipment, the polytetrafluoroethylsealed sealed pad of particularly a kind of Waveform movable pressing.
Background technique
Present polytetrafluoroethylsealed sealed pad to static joint, public use sectional shape is arranged is 100% polytetrafluoroethylsealed sealed pad of rectangle or round (O circle), the polytetrafluoroethylsealed sealed pad that adds fiber, gasket seal that tetrafluoro is embraced multiple fiber, be the skeleton surface gasket seal that pastes multiple tetrafluoro etc. with the metal, because after sectional shape is rectangle or round PTFE slaking, be subjected to produce creep under the pressure outside situation, and the resilience of material self is poor, especially under the operating mode of serviceability temperature, pressure alternation, creep is more obvious.Though added creep resisting fiber in some teflon flat gasket product, the resilience of pad still can not get significantly improving. above shortcoming causes seal leakage serious, seal failure.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of Waveform movable pressing polytetrafluoroethylsealed sealed pad, it changes the sectional shape of polytetrafluoroethylsealed sealed pad, significantly improves the resilience and the anti-pressure ability of pad, under the operating mode of serviceability temperature, pressure alternation, guarantee that sealing effect is long-acting reliable.
Above-mentioned purpose of the present utility model is realized by following technological scheme: the polytetrafluoroethylsealed sealed pad of a kind of Waveform movable pressing, it is characterized in that gasket surface is rough waveform, it is evenly spaced apart that the concave, convex of gasket surface can be concentric circle, pad two lip-deep concave, convex are staggered, gasket surface has waveform complete more than at least with respect to contact component
Advantage of the present utility model and effect: place two to connect between the end face on the polytetrafluoroethylsealed sealed pad of Waveform movable pressing, and be connected the end face contact with two.Under the effect of closing force, pad is deformed extension with respect to two waveforms that connect end face, and produces corresponding spring-back force outside, and the size of spring-back force can be set according to the width of waveform.The polytetrafluoroethylsealed sealed pad of Waveform movable pressing connects between the end face relative static with two, thereby the polytetrafluoroethylsealed sealed pad of realization Waveform movable pressing is connected the inside and outside both sides of end face not to be communicated by isolated with two, under the operating mode of temperature, pressure alternation, the waveform that is deformed extension produces deformation power thereupon and becomes, be connected end face and combine closely with two keeping, to realize effective sealing, also be significantly improving simultaneously to safety guarantee.Under the operating mode of identical temperature alternating and under the identical flange pretightening force, effectively sealing load is that sectional shape is more than 1.5 times of rectangle teflon gasket. the material of the polytetrafluoroethylsealed sealed pad of Waveform movable pressing can be that 100% tetrafluoro, fibre-reinforced tetrafluoro or inside have the stainless steel metal waveform to strengthen.
Description of drawings
Fig. 1 is the utility model sealing state schematic representation;
Fig. 2-the 4th, several embodiments of the utility model general structure.
Embodiment
Referring to Fig. 1, the utility model Waveform movable pressing Tetrafluoro spacer 1 places and connects end face 2, between 3, realize two by tightening of bolt 5 and nut 4 and be connected end face 2,3 exert pressure to pad 1, thereby make pad 1 connect end face 2 with respect to two, 3 waveform is deformed extension, and produce corresponding spring-back force, and be connected end face 2 with two, static relatively between 3, thereby realize that the polytetrafluoroethylsealed sealed pad 1 of Waveform movable pressing is connected end face 2 with two, a left side of 3, right both sides are not communicated by isolated, in temperature, under the operating mode of pressure alternation, the waveform that is deformed extension produces deformation power thereupon and becomes, to keep being connected end face 2 with two, 3 combine closely, to realize effective sealing.
Fig. 2 is the gasket seal that adopts 100% tetrafluoro and fibre-reinforced tetrafluoro; Fig. 3 adopts the inner embodiment who has stainless steel metal waveform 6 to strengthen; Fig. 4 is the concave, convex distribution map of gasket surface (front), and it is evenly spaced apart that concave, convex can be concentric circle, the 7th, and recessed circle, the 8th, dome, reverse side are then opposite.
Claims (3)
1. the polytetrafluoroethylsealed sealed pad of Waveform movable pressing is characterized in that gasket surface is rough waveform.
2. according to the polytetrafluoroethylsealed sealed pad of the described Waveform movable pressing of claim 1, it is evenly spaced apart that the concave, convex that it is characterized in that gasket surface is concentric circle, and pad two lip-deep concave, convex are staggered.
3. according to claim 1 or the polytetrafluoroethylsealed sealed pad of 2 described Waveform movable pressings, it is characterized in that gasket surface has waveform complete more than at least with respect to contact component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200350373U CN201027970Y (en) | 2007-03-09 | 2007-03-09 | Wave-shaped live-pressure four-fluorine sealing washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200350373U CN201027970Y (en) | 2007-03-09 | 2007-03-09 | Wave-shaped live-pressure four-fluorine sealing washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027970Y true CN201027970Y (en) | 2008-02-27 |
Family
ID=39132180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200350373U Expired - Lifetime CN201027970Y (en) | 2007-03-09 | 2007-03-09 | Wave-shaped live-pressure four-fluorine sealing washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027970Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725711A (en) * | 2008-10-30 | 2010-06-09 | 日本皮拉工业株式会社 | Spacer |
| CN103267185A (en) * | 2013-06-04 | 2013-08-28 | 慈溪博格曼密封材料有限公司 | Cladding pad |
| CN104684709A (en) * | 2012-06-26 | 2015-06-03 | 卡勒克密封技术有限责任公司 | Gasket material, gaskets, and related methods |
| CN105402413A (en) * | 2015-11-26 | 2016-03-16 | 成都九十度工业产品设计有限公司 | Compound gasket for engine |
| CN105402405A (en) * | 2015-11-26 | 2016-03-16 | 成都九十度工业产品设计有限公司 | Metal combination gasket |
| CN107709883A (en) * | 2015-07-09 | 2018-02-16 | 林内株式会社 | Water heater |
-
2007
- 2007-03-09 CN CNU2007200350373U patent/CN201027970Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725711A (en) * | 2008-10-30 | 2010-06-09 | 日本皮拉工业株式会社 | Spacer |
| CN104684709A (en) * | 2012-06-26 | 2015-06-03 | 卡勒克密封技术有限责任公司 | Gasket material, gaskets, and related methods |
| CN103267185A (en) * | 2013-06-04 | 2013-08-28 | 慈溪博格曼密封材料有限公司 | Cladding pad |
| CN103267185B (en) * | 2013-06-04 | 2016-06-08 | 慈溪博格曼密封材料有限公司 | A kind of coated pad |
| CN107709883A (en) * | 2015-07-09 | 2018-02-16 | 林内株式会社 | Water heater |
| US10480821B2 (en) | 2015-07-09 | 2019-11-19 | Rinnai Corporation | Water heater |
| CN105402413A (en) * | 2015-11-26 | 2016-03-16 | 成都九十度工业产品设计有限公司 | Compound gasket for engine |
| CN105402405A (en) * | 2015-11-26 | 2016-03-16 | 成都九十度工业产品设计有限公司 | Metal combination gasket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080227 |
|
| CX01 | Expiry of patent term |