CN203979627U - A kind of butterfly valve valve rod sealing device - Google Patents
A kind of butterfly valve valve rod sealing device Download PDFInfo
- Publication number
- CN203979627U CN203979627U CN201420396610.3U CN201420396610U CN203979627U CN 203979627 U CN203979627 U CN 203979627U CN 201420396610 U CN201420396610 U CN 201420396610U CN 203979627 U CN203979627 U CN 203979627U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- valve
- sealing device
- cushion rubber
- gum cover
- 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
Abstract
A butterfly valve valve rod sealing device is to consist of: gum cover, gasket set, annular base, cushion rubber, space ring, aprons slot; Outside gum cover, valve rod hole periphery arranges gasket set; Adopt anticorrosive ageing-resistant macromolecule organic material, be applicable to heating power, chemical industry, petrochemical industry, smelting, medicine, each field of food, high temperature resistant, resistance to high and cold, overcome the sealed ring deformation that temperature variation produces; Not easy to wear, in the working life of increase, reduced maintenance cost and energy loss; Utilize the structure of seal ring, in valve switch process, reduce dew point, economize on resources.
Description
Technical field
The utility model relates to butterfly valve and manufactures field, especially a kind of butterfly valve valve rod sealing device.
Background technique
At present, application widely of butterfly valve.Butterfly valve is that open-shut device is plectane, around stem movement, realizes opening and closing, is applied in the pipeline transport of all kinds of fluids, rises and cut off and throttling action on pipeline; Wherein valve rod and gum cover are in relative rotation, and traditional valve stem seal is with seal ring and O type circle; Be not durable, be prone to dew point.
In view of the deficiencies in the prior art part, provide following technological scheme.
Model utility content
The purpose of this utility model is in order to overcome deficiency of the prior art, and a kind of butterfly valve valve rod sealing device is provided, not easy to wear, in the working life of increase, has reduced maintenance cost and energy loss.
The utility model to achieve these goals, adopts following technological scheme: a kind of butterfly valve valve rod sealing device is to consist of, gum cover, gasket set, annular base, cushion rubber, space ring, aprons slot; Outside gum cover, valve rod hole periphery arranges gasket set.
Described gasket set is to consist of, annular base, cushion rubber, space ring, aprons slot; Annular base middle inside arranges space ring, and aprons slot is reserved in space ring both sides, and in aprons slot, correspondence arranges cushion rubber.
The inner ring diameter of described cushion rubber is less than the diameter of valve rod hole.
The beneficial effects of the utility model are: the utility model adopts anticorrosive ageing-resistant macromolecule organic material, be applicable to heating power, chemical industry, petrochemical industry, smelting, medicine, each field of food, high temperature resistant, resistance to high and cold, overcome the sealed ring deformation that temperature variation produces; Not easy to wear, in the working life of increase, reduced maintenance cost and energy loss; Utilize the structure of seal ring, in valve switch process, reduce dew point, economize on resources.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is, general assembly structural representation;
Fig. 2 is, gasket set blast structural representation in Fig. 1;
In Fig. 1,2, gum cover 1, gasket set 2, annular base 2-1, cushion rubber 2-2, space ring 2-3, aprons slot 2-4.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
As shown in the figure, gum cover 1 outside valve rod hole periphery arranges gasket set 2.
Described gasket set 2 be by, annular base 2-1, cushion rubber 2-2, space ring 2-3, aprons slot 2-4 form; Annular base 2-1 middle inside arranges space ring 2-3, and aprons slot 2-4 is reserved in space ring 2-3 both sides, and in aprons slot 2-4, correspondence arranges cushion rubber 2-2.
The inner ring diameter of described cushion rubber 2-2 is less than the diameter of valve rod hole.
Claims (3)
1. a butterfly valve valve rod sealing device, be by: gum cover (1), gasket set (2), annular base (2-1), cushion rubber (2-2), space ring (2-3), aprons slot (2-4) form; It is characterized in that: gum cover (1) outside valve rod hole periphery arranges gasket set (2).
2. a kind of butterfly valve valve rod sealing device according to claim 1, is characterized in that: described gasket set (2) be by, annular base (2-1), cushion rubber (2-2), space ring (2-3), aprons slot (2-4) form; Annular base (2-1) middle inside arranges space ring (2-3), and aprons slot (2-4) is reserved in space ring (2-3) both sides, and in aprons slot (2-4), correspondence arranges cushion rubber (2-2).
3. a kind of butterfly valve valve rod sealing device according to claim 1 and 2, is characterized in that: the inner ring diameter of described cushion rubber (2-2) is less than the diameter of valve rod hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420396610.3U CN203979627U (en) | 2014-07-11 | 2014-07-11 | A kind of butterfly valve valve rod sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420396610.3U CN203979627U (en) | 2014-07-11 | 2014-07-11 | A kind of butterfly valve valve rod sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979627U true CN203979627U (en) | 2014-12-03 |
Family
ID=51977070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420396610.3U Expired - Fee Related CN203979627U (en) | 2014-07-11 | 2014-07-11 | A kind of butterfly valve valve rod sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979627U (en) |
-
2014
- 2014-07-11 CN CN201420396610.3U patent/CN203979627U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20150711 |
|
| EXPY | Termination of patent right or utility model |