CN2525318Y - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN2525318Y CN2525318Y CN 02202290 CN02202290U CN2525318Y CN 2525318 Y CN2525318 Y CN 2525318Y CN 02202290 CN02202290 CN 02202290 CN 02202290 U CN02202290 U CN 02202290U CN 2525318 Y CN2525318 Y CN 2525318Y
- Authority
- CN
- China
- Prior art keywords
- valve
- seal ring
- ball
- card
- steel ball
- 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
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model provides a ball valve which overcomes the disadvantages of hard to rotate and poor sealing performance of the prior common ball valves. The ball valve comprises a steel ball with a port and a valve card which is used for sealing the steel ball, and an inner sealing ring and an outer sealing ring are arranged inside the valve card. A sealing ring is arranged between the valve card and a shell to prevent the valve card from becoming flexible and increases the sealing performance of the valve card. The ball valve has the advantages of good sealing performance and long service life.
Description
Technical field: the utility model relates to a kind of valve, relates in particular to a kind of ball valve.
Background technique: existing ball valve comprises steel ball and seal ring of a rotating band port, owing to must guarantee its sealability, extruding is very tight between steel ball and the seal ring, when causing steel ball to rotate and the friction between the seal ring very big, not only hard, and be worn easily, working life is not long.
Summary of the invention: the utility model is exactly at the prior art deficiency, and a kind of good seal performance is provided, and rotates ball valve easily.What the utility model cooperated with steel ball is former and later two seal rings, what be close to steel ball is the inner seal ring made from PTFE, the sealing circle is good springiness not only, and smooth surface is wear-resisting, the seal ring of back is to make exterior seal ring by silicone rubber material, the sealing circle can not only weaken the friction between steel ball and the inner seal ring, also has seal action.The surface of contact of valve card and watchcase also is provided with seal ring in addition, can prevent that the valve card is loosening, has good seal performance, characteristics such as long service life.
Description of drawings: Fig. 1, structural representation of the present utility model.
1, ball valve 2, interior sense seal ring 3, exterior seal ring 4, valve card 5, seal ring
Embodiment:
The utility model comprises the steel ball 1 of being with port and the valve card 4 that is used for sealed steel ball 1, and valve card 4 the insides are provided with inside and outside two seal rings 2,3.What be close to steel ball 1 is inner seal ring 2, and the outside of inner seal ring 2, the bottom of valve card 4 are exterior seal rings 3.Be provided with seal ring 5 between valve card 4 and the watchcase, can prevent that the valve card is loosening, and increase the sealing of valve card.
Claims (1)
1, a kind of ball valve, comprise the steel ball (1) of a rotating band port and be used for the seal ring and the valve card (4) of sealed steel ball (1), it is characterized in that described seal ring comprises inside and outside two seal rings (2,3), what be close to steel ball (1) is inner seal ring (2), the outside of inner seal ring (2), the bottom of valve card (4) is exterior seal ring (3), is provided with seal ring (5) between valve card (4) and the watchcase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202290 CN2525318Y (en) | 2002-01-15 | 2002-01-15 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202290 CN2525318Y (en) | 2002-01-15 | 2002-01-15 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2525318Y true CN2525318Y (en) | 2002-12-11 |
Family
ID=33684880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02202290 Expired - Fee Related CN2525318Y (en) | 2002-01-15 | 2002-01-15 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2525318Y (en) |
-
2002
- 2002-01-15 CN CN 02202290 patent/CN2525318Y/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 | ||
| 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 |