CN202100715U - Winding type flexible seal cover - Google Patents
Winding type flexible seal cover Download PDFInfo
- Publication number
- CN202100715U CN202100715U CN2011201928550U CN201120192855U CN202100715U CN 202100715 U CN202100715 U CN 202100715U CN 2011201928550 U CN2011201928550 U CN 2011201928550U CN 201120192855 U CN201120192855 U CN 201120192855U CN 202100715 U CN202100715 U CN 202100715U
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Abstract
The utility model discloses a winding type flexible seal cover which comprises a winding layer, an inner transitional layer and an outer transitional layer, wherein the winding layer is at least wound twice and comprises an inner wall and an outer wall, the inner wall and the outer wall of the winding layer both take the shape of an Archimedes spiral, one end of the winding layer is an inner end, and the other end of the winding layer is an outer end; the outer wall of the inner transitional layer also takes the shape of an Archimedes spiral, the inner wall of the inner transitional layer takes a circular shape, one end of the inner transitional layer is an thick end and the other end of the inner transitional layer is a thin end; and the thick end of the inner transitional layer is simultaneously in butt joint with the outer end of the winding layer and the thin end of the outer transitional layer. The utility model has the advantage that the winding type flexible seal cover is simple to produce and process, and the strength and flexibility can be efficiently improved.
Description
Technical field
The utility model belongs to the mechanical seal transmission field, is specifically related to a kind of wrap style flexible sealing cover.
Background technique
In hot environments such as nuclear power, severe toxicity; Extremely strict for the requirement that leaks; Need to use the mechanical seal transmission, promptly need adopt the flexible sealing cover, Chinese patent 200920238041.9 discloses a kind of flexible sealing cover; The difficulty of processing of this flexible sealing cover is big, and flexible sealing cover intensity and flexibility are all relatively poor.
Summary of the invention
The purpose of the utility model is to overcome the defective of existing technology, and a kind of wrap style flexible sealing cover is provided, and the production and processing difficulty of the utility model is low, and can effectively improve the intensity and the flexibility of flexible sealing cover.
Its technological scheme is following.
A kind of wrap style flexible sealing cover; Comprise winding layer, interior transition layer and outer transition layer, winding layer twines two circles at least, and this winding layer comprises inwall and outer wall; The inwall of winding layer and outer wall all form Archimedes spiral, and a wherein end of winding layer is the outer end for inner, the other end; The outer wall of interior transition layer forms Archimedes spiral, and the inwall of interior transition layer forms circle, and a wherein end of interior transition layer is that thick end, the other end dock with the thin end of the inner of winding layer, interior transition layer for thin end, the thick end of interior transition layer simultaneously; The outer wall of outer transition layer forms circle, and the inwall of outer transition layer forms Archimedes spiral, and a wherein end of outer transition layer is that thick end, the other end dock with the thin end of the outer end of winding layer, outer transition layer for thin end, the thick end of outer transition layer simultaneously.
Below the further technical scheme of the utility model is described.
The said Archimedes spiral of the inwall of said winding layer is continuous, and the said Archimedes spiral of the outer wall of said winding layer is continuous.
The thickness of the thin end of transition layer and the inner thickness sum of winding layer in the thickness of transition bed thickness end equals in said.
The thickness of said outer transition bed thickness end equals the thickness of the thin end of outer transition layer and the thickness sum of winding layer outer end.
The thickness of said winding layer is 0.07 millimeter to 0.25 millimeter.
The thickness of transition bed thickness end and outer transition bed thickness end is 0.2 millimeter to 0.4 millimeter in said.
Also include inner sleeve, the inwall of this inner sleeve and outer wall all form circle, the inwall contact matching of the outer wall of this inner sleeve and said interior transition layer.
Also include outer sleeve, the inwall of this outer sleeve and outer wall all form circle, the outer wall contact matching of the inwall of this outer sleeve and said outer transition layer.
Advantage or principle in the face of the utility model describes down:
1, this wound form flexible sealing cover comprises winding layer, interior transition zone and outer transition zone; Winding layer twines by the mode of Archimedes spiral; And the inner of winding layer makes the inwall of whole flexible sealing cover form profile in the pure circle by interior transition zone transition; The outer end of winding layer makes the outer wall of whole flexible sealing cover form pure circular outline by outer transition zone transition; That is to say that the inwall of whole flexible sealing cover, outer wall are pure circle; This structure has significantly reduced the production and processing cost of product, and because the flexible sealing cover is made of the multi-turn winding layer, and its stress distribution is more even, intensity is high, and is flexible good;
2, for the thickness of winding layer, interior transition zone and outer transition zone; Its thickness can not be thin excessively; If thickness is thin excessively; Processing difficulties then; Thickness is blocked up; Influence the flexibility of seal closure, the scope that the thickness of winding layer is preferred 0.07 millimeter to 0.25 millimeter, preferred 0.2 millimeter to the 0.4 millimeter scope of thickness of interior transition bed thickness end and outer transition bed thickness end;
3, inner sleeve and outer sleeve are set after, can play further protective action to the flexible sealing cover, prolonged the working life of flexible sealing cover greatly.
Description of drawings
Fig. 1 is the utility model embodiment one a structural drawing;
Fig. 2 is the broken section enlarged view of Fig. 1;
Fig. 3 is the utility model embodiment two a structural drawing;
Fig. 4 is the broken section enlarged view of Fig. 3;
Description of reference numerals:
1, winding layer, 2, interior transition layer, 3, outer transition layer, 4, inner sleeve, 5, outer sleeve.
Embodiment
Embodiment in the face of the utility model is elaborated down.
Embodiment is just like Fig. 1, shown in Figure 2; A kind of wrap style flexible sealing cover; Comprise winding layer 1, interior transition layer 2 and outer transition layer 3, winding layer 1 twines two circles at least, and this winding layer 1 comprises inwall and outer wall; The inwall of winding layer 1 and outer wall all form Archimedes spiral, and a wherein end of winding layer 1 is the outer end for inner, the other end; The outer wall of interior transition layer 2 forms Archimedes spiral, and the inwall of interior transition layer 2 forms circle, and a wherein end of interior transition layer 2 is that thick end, the other end dock with the inner of winding layer 1, the thin end of interior transition layer 2 for thin end, the thick end of interior transition layer 2 simultaneously; The outer wall of outer transition layer 3 forms circle, and the inwall of outer transition layer 3 forms Archimedes spiral, and a wherein end of outer transition layer 3 is that thick end, the other end dock with the outer end of winding layer 1, the thin end of outer transition layer 3 for thin end, the thick end of outer transition layer 3 simultaneously.
Wherein, the said Archimedes spiral of the inwall of said winding layer 1 is continuous, and the said Archimedes spiral of the outer wall of said winding layer 1 is continuous.The thickness sum of the thickness of transition layer 2 thin ends and winding layer 1 the inner in the thickness of transition layer 2 thick ends equals in said.The thickness of said outer transition layer 3 thick ends equals the thickness of outer transition layer 3 thin ends and the thickness sum of winding layer 1 outer end.
The thickness of said winding layer 1 is 0.15 millimeter.The thickness of transition layer 2 thick ends and outer transition layer 3 thick ends is 0.3 millimeter in said.
In the present embodiment, a place is a circular arc line, and b, c, d place are Archimedes spiral, and the e place is a circular arc line.
Advantage or principle in the face of the utility model describes down:
1, this wrap style flexible sealing cover comprises winding layer 1, interior transition layer 2 and outer transition layer 3; Winding layer 1 twines by the mode of Archimedes spiral; And the inner of winding layer 1 makes the inwall of whole flexible sealing cover form profile in the pure circle through interior transition layer 2 transition; The outer end of winding layer 1 makes the outer wall of whole flexible sealing cover form pure circular external frame through outer transition layer 3 transition, that is to say that the inwall of whole flexible sealing cover, outer wall are pure circle; This structure has significantly reduced the production and processing cost of product, and because the flexible sealing cover is made up of many circles winding layer 1, and its stress distribution is more even, intensity is high, and is flexible good;
2, for the thickness of winding layer 1, interior transition layer 2 and outer transition layer 3; Its thickness can not be thin excessively, if thickness is thin excessively, and processing difficulties then; Thickness is blocked up; Influence the flexibility of seal closure, the scope that the thickness of winding layer 1 is preferred 0.15 millimeter, the preferred 0.3 millimeter scope of thickness of interior transition layer 2 thick ends and outer transition layer 3 thick ends.
Embodiment two is like Fig. 3, shown in Figure 4; Present embodiment is with the different of embodiment one; This embodiment also includes inner sleeve 4 and outer sleeve 5, and the inwall of this inner sleeve 4 and outer wall all form circle, the inwall contact matching of the outer wall of this inner sleeve 4 and said interior transition layer 2; The inwall of this outer sleeve 5 and outer wall all form circle, the outer wall contact matching of the inwall of this outer sleeve 5 and said outer transition layer 3.
In the present embodiment, a place is a circular arc line, and b, c, d place are Archimedes spiral, and the e place is a circular arc line, and f, g place are circular arc line.
After inner sleeve 4 and outer sleeve 5 are set, can play further protective action, prolong the working life of flexible sealing cover greatly the flexible sealing cover.
More than be merely the specific embodiment of the utility model, do not limit the protection domain of the utility model with this; Do not violate any replacement and the improvement of being done on the basis of the utility model design, all belonging to the protection domain of the utility model.
Claims (8)
1. wound form flexible sealing cover; It is characterized in that; Comprise winding layer, interior transition zone and outer transition zone; Winding layer twines two circles at least; This winding layer comprises inwall and outer wall; The inwall of winding layer and outer wall all form Archimedes spiral, and a wherein end of winding layer is the outer end for inner, the other end; The outer wall of interior transition zone forms Archimedes spiral, and the inwall of interior transition zone forms circle, and a wherein end of interior transition zone is that thick end, the other end dock with the thin end of the inner of winding layer, interior transition zone for thin end, the thick end of interior transition zone simultaneously; The outer wall of outer transition zone forms circle, and the inwall of outer transition zone forms Archimedes spiral, and a wherein end of outer transition zone is that thick end, the other end dock with the thin end of the outer end of winding layer, outer transition zone for thin end, the thick end of outer transition zone simultaneously.
2. wrap style flexible sealing cover according to claim 1 is characterized in that the said Archimedes spiral of the inwall of said winding layer is continuous, and the said Archimedes spiral of the outer wall of said winding layer is continuous.
3. wrap style flexible sealing cover according to claim 1 is characterized in that, said in the thickness of transition bed thickness end equal in the thickness sum of thickness and winding layer the inner of the thin end of transition layer.
4. wrap style flexible sealing cover according to claim 1 is characterized in that, the thickness of said outer transition bed thickness end equals the thickness of the thin end of outer transition layer and the thickness sum of winding layer outer end.
5. like each said wrap style flexible sealing cover in the claim 1 to 4, it is characterized in that the thickness of said winding layer is 0.07 millimeter to 0.25 millimeter.
6. like each said wrap style flexible sealing cover in the claim 1 to 4, it is characterized in that the thickness of said interior transition bed thickness end and outer transition bed thickness end is 0.2 millimeter to 0.4 millimeter.
7. like each said wrap style flexible sealing cover in the claim 1 to 4, it is characterized in that also include inner sleeve, the inwall of this inner sleeve and outer wall all form circle, the inwall contact matching of the outer wall of this inner sleeve and said interior transition layer.
8. like each said wrap style flexible sealing cover in the claim 1 to 4, it is characterized in that also include outer sleeve, the inwall of this outer sleeve and outer wall all form circle, the outer wall contact matching of the inwall of this outer sleeve and said outer transition layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201928550U CN202100715U (en) | 2011-06-09 | 2011-06-09 | Winding type flexible seal cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201928550U CN202100715U (en) | 2011-06-09 | 2011-06-09 | Winding type flexible seal cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100715U true CN202100715U (en) | 2012-01-04 |
Family
ID=45386729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201928550U Expired - Fee Related CN202100715U (en) | 2011-06-09 | 2011-06-09 | Winding type flexible seal cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100715U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252094A (en) * | 2011-06-09 | 2011-11-23 | 林德宽 | Winding flexible seal cover |
-
2011
- 2011-06-09 CN CN2011201928550U patent/CN202100715U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252094A (en) * | 2011-06-09 | 2011-11-23 | 林德宽 | Winding flexible seal cover |
| CN102252094B (en) * | 2011-06-09 | 2013-08-28 | 林德宽 | Winding flexible seal cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20140609 |