CN2204883Y - C-shaped slip ring type combined seal - Google Patents
C-shaped slip ring type combined seal Download PDFInfo
- Publication number
- CN2204883Y CN2204883Y CN 94215705 CN94215705U CN2204883Y CN 2204883 Y CN2204883 Y CN 2204883Y CN 94215705 CN94215705 CN 94215705 CN 94215705 U CN94215705 U CN 94215705U CN 2204883 Y CN2204883 Y CN 2204883Y
- Authority
- CN
- China
- Prior art keywords
- slip ring
- shape
- sealing
- lip
- ring
- 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 - Fee Related
Links
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 18
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Sealing Devices (AREA)
Abstract
A C-shaped slip ring type combined seal is characterized in that a slip ring consists of a thin lip and two flanges or two thin lips and one flange. The width and thickness of the thin lip and the flange are controlled in a proper range, dynamic and static sealing of holes and shafts can be carried out on parts with any size, and the sealing device is particularly suitable for corrosion-resistant media and temperature-resistant and pressure-resistant sealing parts requiring low friction and long service life. Can be widely applied to sealing parts with high environmental protection requirements, such as chemical industry, food, refrigeration and the like.
Description
The utility model relates to a kind of combination sealing arrangement.
Chinese patent (patent No. 92204643.3) " right angle sliding ring type combination seal " is though that (see figure 1) has overcome " Ο " shape seal with elastometic washer friction is big, heat resistance is poor, shortcomings such as operating life is low, but because this kind sealing, must be the open type composite structure unexpectedly, promptly sealing medium be to contact working state entirely with " Ο " shape rubber ring.In case meet deep-etching or extraordinary sealing medium, then the general purpose rubber seal ring is difficult to satisfy, as technical requirementss such as permeability, swollen rising property, thereby its sealing was lost efficacy ahead of time, and application is restricted.
This is suitable for novel purpose is to improve at the shortcoming of " right angle sliding ring type combination seal ", a kind of have long-life, low friction, erosion-resisting novel sealing structure are provided, thereby enlarged the application area of combination seal, be particularly useful for the dynamic and static sealing position of industries such as chemical industry, pharmacy, refrigeration.
Technical solution of the present utility model is:
To comprising that the slip ring in the right angle sliding ring type combination seal that " Ο " shape rubber ring and right angle type slip ring form makes improvements, " right angle slip ring " of the prior art changed into the slip ring that has two shelves limits and thin lip or two thin lips and a shelves limit.Its thin lip is vertical arrangement with the shelves limit, its thin lip and slip ring parallel axes, with the width, THICKNESS CONTROL on sealing lip limit and shelves limit in suitable scope, when keeping the prior art advantage, " Ο " shape rubber ring is in working state open and that directly contact with the corrosivity sealing medium in the outstanding solution prior art.Its reason is under this state, is in " Ο " shape rubber ring in the corrosivity sealing medium, in long-term work, more or less all can be because of being subjected to corrosive action, occur that volume is swollen to rise, material capability descends, thereby influence sealing effect, cause seal failure ahead of time and leak.The utility model then makes " Ο " shape rubber ring be in (installation tightens up the back) under the totally-enclosed protection of the slip ring of being made by special material; and it is isolated with Korrosionsmedium; its rubber material capability is unaffected; can normally bring into play its elastic reaction; thereby can guarantee permanently effective sealability, improve the sealing part works life-span.
Below in conjunction with accompanying drawing in detail structure of the present utility model is described in detail.Fig. 1 is Chinese patent (92204643.3) disclosed " a right angle slip ring ".Wherein Fig. 1 a is facing and the side-looking structural representation of right angle slip ring; Fig. 2 a, b, c are the schematic representation of C shape slip ring of the present utility model; Wherein Fig. 2 a is the C shape slip ring cross section enlarged view that is used for seal shaft; Fig. 2 b is the C shape slip ring cross section enlarged view that is used for closed hole; Fig. 2 c gets final product the also C shape slip ring cross section enlarged view in salable hole of seal shaft; Fig. 3 a, b, c are the sectional views after the utility model assembling.Wherein Fig. 3 a is the structural representation of closed hole; Fig. 3 b is the structural representation of seal shaft; Fig. 3 c is the structural representation in seal shaft, hole.
By Fig. 2 and Fig. 3 as can be known, the utility model is made up of C shape slip ring (1) and " Ο " shape cushion rubber (2) and spacer (3).C shape slip ring labial surface can be used for closed hole outwardly, and (Fig. 3 a); Labial surface can be used for seal shaft (Fig. 3 b) inwardly.Opening is convenient to lay " Ο " shape cushion rubber, compresses back " Ο " shape cushion rubber and is in closed state.C shape slip ring (1) is made up of two-part; The one, thin lip g, another is to be 90 ° of shelves limit f with it.As required, thin lip and folk art term limit form be can make, two thin lips and single grade of limit form also can be made.Require (Fig. 3) to adapt to the different sealing position.Between its thin lip and shelves limit internal surface with garden arc R transition.
Because the lip of C shape slip ring is thick, the shelves limit is thick and lip is wide, shelves hem width moderate dimensions, then can guarantee easy for installation, sealing the best.Thereby satisfied low friction, corrosion-resistant, do not have seal requests such as leakage, long-life.
The utility model shows that through practice its scope of application is better than prior art greatly. And thoroughly solved low friction, the technical barrier of corrosion-resistant, high life.
Claims (4)
1, a kind of C shape sliding ring type combination seal comprises C shape slip ring, " O " shape rubber ring and spacer (or piston), it is characterized in that C shape slip ring is made up of two shelves limits and a perpendicular thin lip or a shelves limit and two perpendicular thin lips.
According to the combination seal of claim 1, it is characterized in that 2, it is " Ο " shape rubber ring diameter of section that C shape slip ring groove width b equals d(d), lip is thick to be the wide 0.6～0.9d that equals of 0.15～0.8mm. lip.
3, according to claim 1,2 combination seal, it is characterized in that the thick 0.5～1.5mm that equals of side shelves limit f of C shape slip ring.
According to claim 1,2 combination seal, it is characterized in that 4, the transition garden arc R between slip ring labial surface and shelves limit internal surface is 0.1～0.3d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94215705 CN2204883Y (en) | 1994-06-24 | 1994-06-24 | C-shaped slip ring type combined seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94215705 CN2204883Y (en) | 1994-06-24 | 1994-06-24 | C-shaped slip ring type combined seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2204883Y true CN2204883Y (en) | 1995-08-09 |
Family
ID=33831611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94215705 Expired - Fee Related CN2204883Y (en) | 1994-06-24 | 1994-06-24 | C-shaped slip ring type combined seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2204883Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052464A (en) * | 2010-11-10 | 2011-05-11 | 洛阳双瑞特种装备有限公司 | Composite structural rubber seal ring with self-tightening function |
| CN103322201A (en) * | 2013-06-18 | 2013-09-25 | 苏州市吴中区欣鑫开关配件厂 | Piston sealing device |
-
1994
- 1994-06-24 CN CN 94215705 patent/CN2204883Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052464A (en) * | 2010-11-10 | 2011-05-11 | 洛阳双瑞特种装备有限公司 | Composite structural rubber seal ring with self-tightening function |
| CN103322201A (en) * | 2013-06-18 | 2013-09-25 | 苏州市吴中区欣鑫开关配件厂 | Piston sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |