CN2577052Y - Winding spacer - Google Patents
Winding spacer Download PDFInfo
- Publication number
- CN2577052Y CN2577052Y CN 02257666 CN02257666U CN2577052Y CN 2577052 Y CN2577052 Y CN 2577052Y CN 02257666 CN02257666 CN 02257666 CN 02257666 U CN02257666 U CN 02257666U CN 2577052 Y CN2577052 Y CN 2577052Y
- Authority
- CN
- China
- Prior art keywords
- metal tape
- spirotallic gasket
- metal band
- utility
- model
- Prior art date
- 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
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- Gasket Seals (AREA)
Abstract
The utility model relates to a winding spacer. The inner part of the spacer comprises a metal band which is formed in a prepressing way, and nonmetal fillings. The utility model is characterized in that a stress and deformation surface of the metal band is provided with a plurality of bent points. A contact included angle between the metal band and a flange surface is smaller than 45 DEG.
Description
One, technical field
The utility model relates to the gasket seal of machinery equipment flange connections such as being used for pressurized container, pipeline, valve, particularly a kind of spirotallic gasket.
Two, background technique
Spirotallic gasket is a kind of static seal form, and its structure is to be fitted tightly by the multi-layer thin metal steel band of pre-molding and non-metallic fillers band, and alternately overlapping mutually, spiral is fastened and makes, so be also referred to as the spiral spirotallic gasket.Wherein, the effect of steel band is the clamping non-metallic fillers and makes pad integral body have rebound elasticity, recovery preferably, and the effect of filler is sealing.Therefore the sealing effect of spirotallic gasket comprehensively depends on the flow performance of recovery, rebound elasticity and the stuffing box packing of twining metal self.The spirotallic gasket of prior art has NBS, as shown in Figure 1, is a kind of spirotallic gasket with interior outer annular-stiffer 1 and 2, and 6 is non-metallic fillers.Every layer of metal tape 3 is V-shaped, has only a bending point A, and recovery and rebound elasticity are poor, and anti-pressure ability is low, and the contact angle between metal tape and the flange 4,5 is bigger than normal, greater than 45 °, easily damages flange facing.Since in the use occasion temperature is often arranged, the fluctuation of pressure, above-mentioned defective makes the sealing effect of sealing gasket integral body descend, the way one of solution is repeatedly to tighten flange bolt repeatedly, and the 2nd, need processing again after flanged surface is impaired.
Three, summary of the invention
The purpose of this utility model is shape, the structure that changes metal tape in the spirotallic gasket, to strengthen the rebound elasticity and the recovery of metal tape, when the integral sealing effect of pad is increased, the infringement of flange facing is also reduced, and also increased working life.
Above-mentioned purpose of the present utility model is to realize like this.
A kind of spirotallic gasket contains the metal tape and the non-metallic fillers of pre-molding in the pad, it is characterized in that the stress deformation face of metal tape is provided with two above bending points.Contact angle＜45 ° between metal tape and the flanged surface.
Four, description of drawings
Fig. 1 is the spirotallic gasket of existing structure;
Fig. 2,3,4 is respectively the spirotallic gasket that metal tape is provided with three, five and a plurality of bending points.
Fig. 5 is the partial enlarged drawing of five bending points.
Five, embodiment
Referring to Fig. 2-5, the same Fig. 1 of label declaration.Stain is represented the position of a plurality of bending points among the figure.The effect that increases bending point is to make metal tape expand to the form of springs of multiple answer, has improved the rebound elasticity and the recovery of metal tape.In addition, metal tape contacts angle＜45 ° with flanged surface, compresses the damage of back metal tape to flanged surface to reduce pad.
Claims (2)
1. spirotallic gasket contains the metal tape and the non-metallic fillers of pre-molding in the pad, it is characterized in that the stress deformation face of metal tape is provided with two above bending points.
2. spirotallic gasket according to claim 1 is characterized in that contacting angle＜45 ° between metal tape and the flanged surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257666 CN2577052Y (en) | 2002-10-09 | 2002-10-09 | Winding spacer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257666 CN2577052Y (en) | 2002-10-09 | 2002-10-09 | Winding spacer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2577052Y true CN2577052Y (en) | 2003-10-01 |
Family
ID=33725564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02257666 Expired - Lifetime CN2577052Y (en) | 2002-10-09 | 2002-10-09 | Winding spacer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2577052Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477992A (en) * | 2010-11-25 | 2012-05-30 | 江苏双达泵阀集团有限公司 | Residual heat removal pump for PWR (pressurized water reactor) nuclear power plants |
| CN103016732A (en) * | 2012-12-31 | 2013-04-03 | 自贡鑫剑密封科技有限公司 | H-shaped metal composite gasket |
| CN104620026A (en) * | 2012-07-06 | 2015-05-13 | 株式会社东芝 | Spiral gasket |
| CN104625647A (en) * | 2015-01-17 | 2015-05-20 | 哈尔滨东安实业发展有限公司 | Metal energy storage spring machining method |
| CN105090495A (en) * | 2014-05-16 | 2015-11-25 | 自贡鑫剑密封科技有限公司 | Combined wound gasket |
| CN107461494A (en) * | 2017-08-29 | 2017-12-12 | 慈溪市恒立密封材料有限公司 | A kind of constant stress gasket seal |
| CN108474476A (en) * | 2015-12-28 | 2018-08-31 | 日本华尔卡工业株式会社 | Spiral winding pads |
-
2002
- 2002-10-09 CN CN 02257666 patent/CN2577052Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477992A (en) * | 2010-11-25 | 2012-05-30 | 江苏双达泵阀集团有限公司 | Residual heat removal pump for PWR (pressurized water reactor) nuclear power plants |
| CN104620026A (en) * | 2012-07-06 | 2015-05-13 | 株式会社东芝 | Spiral gasket |
| CN103016732A (en) * | 2012-12-31 | 2013-04-03 | 自贡鑫剑密封科技有限公司 | H-shaped metal composite gasket |
| CN105090495A (en) * | 2014-05-16 | 2015-11-25 | 自贡鑫剑密封科技有限公司 | Combined wound gasket |
| CN104625647A (en) * | 2015-01-17 | 2015-05-20 | 哈尔滨东安实业发展有限公司 | Metal energy storage spring machining method |
| CN108474476A (en) * | 2015-12-28 | 2018-08-31 | 日本华尔卡工业株式会社 | Spiral winding pads |
| CN107461494A (en) * | 2017-08-29 | 2017-12-12 | 慈溪市恒立密封材料有限公司 | A kind of constant stress gasket seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AIGIN ( NANJING ) PRETIGHTENING ENVIRONMENTAL GAS Free format text: FORMER OWNER: ZHAO JINGWEI Effective date: 20080125 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080125 Address after: Building 15, science and technology software park, window of the world, No. 12, Huai gate, Gulou District, Jiangsu, Nanjing Province, 210013, postcode: Patentee after: Aig Nanjing Environmental Protection Gasket Preloading Material Co., Ltd. Address before: AI Zhi, 55, Liyuan South Road, Jiangning District, Jiangsu, Nanjing Province, China: 211100 Patentee before: Zhao Jingwei |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121009 Granted publication date: 20031001 |