CN2761927Y - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN2761927Y CN2761927Y CN 200520001761 CN200520001761U CN2761927Y CN 2761927 Y CN2761927 Y CN 2761927Y CN 200520001761 CN200520001761 CN 200520001761 CN 200520001761 U CN200520001761 U CN 200520001761U CN 2761927 Y CN2761927 Y CN 2761927Y
- Authority
- CN
- China
- Prior art keywords
- valve
- lining
- spool
- valve body
- valve core
- 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
- 230000008676 import Effects 0.000 claims description 2
- 239000011229 interlayer Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 9
- 239000012530 fluid Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a ball valve capable of preventing internal leakage. The utility model has the structure that a valve body (1), a lining sleeve (8), a valve core (5), a rubber sealing ring (6) and a valve joint (7) are sequentially connected between an inlet and an outlet; the lining sleeve (8) can freely slide in the valve body (1), one end is leaned in the valve body (1), and the other end is tightly compressed on the valve core (5); one end of the lining sleeve (8) is provided with an annular groove (9), the other end opening forms a spherical face shape which is matched with the shape of the valve core (5), and the end is also provided with a groove (10). With the use of the ball valve with the structure, the valve core is tightly pressed by the self elasticity of the material of the lining sleeve and the impelling force generated from the flow of fluid; the automatic regulation can be carried out when the valve core is abraded, the sealing reliability can be ensured forever; thus, the service life is long, the fabrication is convenient and the cost is low.
Description
Technical field
The utility model relates to a kind of valve class, particularly a kind of ball valve.
Background technique
Ball valve is industrial stopper commonly used, and the sealing configuration of ball valve has very big influence to its usability, the general sealing structure that all adopts plastic seal ring in the spool both sides of existing ball valve, very flexible, open and close difficulty, sealing effect is bad, leaks phenomenon in being easy to generate.Chinese patent CN99252986.7 discloses a kind of employing elastic sealing structure, cluster spring at large diameter spring of seal ring overcoat or minor diameter, by the elastic force pressed spool of spring, reach the purpose of leakproof, the ball valve of this structure in use gets rusty easily for spring admittedly, aging, make valve produce the interior phenomenon of leaking, the life-span of valve is not long, in addition on the one hand, structure is more complicated also, the processing cost height.
Utility class is held
To cause the life-span not long for leakage conductance in the purpose of this utility model was to overcome in the prior art easily, and the shortcoming that processing cost is high provides a kind of life-span long, and anti-interior leakage is easy to process, the ball valve that cost is low.
Ball valve of the present utility model mainly is made up of valve body, valve rod, nut, planar bilayer seal ring, spool, rubber seal, valve joint and lining, from the import to the outlet, be connected with valve body, lining, spool, rubber seal, valve joint in turn, lining can be free to slide in valve body, one end leans against in the valve body, an other end presses spool, one end of lining is provided with annular groove, and the sphere shape of another one port for matching with spool also is provided with a groove at this end.
As further improvement of the utility model, can increase the elasticity of lining at several breach of solution of contiguity of lining and spool.
Use the ball valve of the utility model structure, when valve closing, fluid produces automatic Driving force to the annular groove of lining, promoting lining slides to Way out, pressed spool, owing to be by the flow Driving force that produces rather than use the spring compression spool of the elasticity of the material of lining own and fluid, making seal spool just can not get rusty aging or be corroded because of spring length service time makes ball valve produce the interior phenomenon of leaking, after the spool wearing and tearing, can regulate automatically, guarantee the reliability of sealing forever, so long service life, simultaneously easy to process, cost is low.
Description of drawings
Fig. 1 is the structural representation of the utility model ball valve.
Fig. 2 is the structural representation of the utility model ball valve lining.
Fig. 3 is the right elevation of the utility model ball valve lining.
Among the figure: 1. valve body, 2. valve rod, 3. nut, 4. planar bilayer seal ring, 5. spool, 6. rubber seal, 7. valve joint, 8. lining, 9. groove, 10. annular groove.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further, the utility model is not limited to embodiment.
Lining 8 is made by elastic material, and the one end is provided with annular groove 10 one, and the sphere shape of an other end for matching with valve core 5 also has a groove 9 at this port, has 6 breach in the contact segment of lining 8 and spool 5, increases the elasticity of lining.
It in valve body 1 step-like circular hole, lining 8 is enclosed within the hole that matches in the valve body 1, lining 8 can be free to slide in the hole in the valve body 1, puts into spool 5, has the groove that adapts with valve rod 2 on spool 5, insert valve rod 2, valve rod 2 is embedded in the groove at spool 5 tops, puts the planar bilayer seal ring 4 back nuts 3 of using and lock, rubber seal 6 is enclosed within the groove of valve joint 7 centres, valve joint 7 by supporting being threaded in the valve body 1, is screwed.By rotation valve rod 5 spool 5 of ball valve is rotated, thereby reach the effect of opening or closing.
The valve body that uses the utility model structure is when valve closing, fluid can produce automatic Driving force to the annular groove 10 of lining 8, promoting lining 8 slides to Way out, pressed spool 5, owing to be by the flow Driving force that produces rather than with spring compression spool 5 of the elasticity of lining 8 materials own and fluid, make spool 5 sealings just can not get rusty aging or be corroded to make in the ball valve generation and leak phenomenon because of spring length service time, after spool 5 wearing and tearing, can regulate automatically, guarantee the reliability of sealing forever, so long service life, simultaneously easy to process, cost is low.
Claims (2)
1. ball valve, mainly by valve body (1), valve rod (2), nut (3), interlayer seal ring (4), spool (5), rubber seal (6), valve joint (7) and lining (8) are formed, it is characterized in that: from the import to the outlet, be connected with valve body (1) in turn, lining (8), spool (5), rubber seal (6), valve joint (7), lining (8) can be free to slide in valve body (1), one end leans against in the valve body (1), an other end presses spool (5), one end of lining (8) is provided with annular groove (9), the sphere shape of another one port for matching with spool (5) also is provided with a groove (10) at this end.
2. ball valve as claimed in claim 1 is characterized in that: at lining (8) several breach of solution of contiguity with spool (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520001761 CN2761927Y (en) | 2005-01-28 | 2005-01-28 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520001761 CN2761927Y (en) | 2005-01-28 | 2005-01-28 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2761927Y true CN2761927Y (en) | 2006-03-01 |
Family
ID=36095053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520001761 Expired - Fee Related CN2761927Y (en) | 2005-01-28 | 2005-01-28 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2761927Y (en) |
-
2005
- 2005-01-28 CN CN 200520001761 patent/CN2761927Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060301 |