CN202469060U - Sealing structure of ball valve - Google Patents
Sealing structure of ball valve Download PDFInfo
- Publication number
- CN202469060U CN202469060U CN2012200456398U CN201220045639U CN202469060U CN 202469060 U CN202469060 U CN 202469060U CN 2012200456398 U CN2012200456398 U CN 2012200456398U CN 201220045639 U CN201220045639 U CN 201220045639U CN 202469060 U CN202469060 U CN 202469060U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- valve body
- valve
- elastic component
- ball valve
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000004809 Teflon Substances 0.000 description 4
- 229920006362 Teflon® Polymers 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
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Abstract
The utility model provides a sealing structure of a ball valve, and belongs to the technical field of ball valves. By the sealing structure, the technical problems of short service life, poor sealing effect and the like in the sealing structure of the conventional ball valve are solved. According to the sealing structure of the ball valve, the ball valve comprises a valve body and a valve plug formed in the valve body. The sealing structure comprises a seal ring, wherein the seal ring is arranged between the valve body and the valve plug; one end face of the seal ring is pressed against the valve plug; an elastic piece which is in the compression state and makes the seal ring have the motion trend towards the valve plug is arranged between the seal ring and the valve body, and the hardness of the elastic piece is smaller than that of the seal ring; an annular positioning groove is formed on the seal ring; the elastic piece is sleeved in the positioning groove and can be pressed against the valve body; an annular bulged part is arranged on the seal ring and is positioned on one side of the positioning groove; and the elastic piece can be pressed against on the bulged part. The sealing structure has the advantages of long service life, good sealing effect and the like.
Description
Technical field
The utility model belongs to the ball valve technical field, relates to the sealing configuration of a kind of ball valve, particularly a kind of ball valve.
Background technique
At present in the relevant device of the draining of industry and agriculture usefulness and liquid control system, switch is rapid, easy to operate, fluid resistance is little because ball valve has, advantages of simple structure and simple and extensively being adopted.Ball valve is developed by stopcock, and its open-shut device utilizes spool to revolve the purpose that turn 90 degrees the realization opening and closing around the axis of valve rod as a spheroid spool.
Because the spool in the ball valve roughly is autumn clothing; Thereby when work, the seal ring of spool outer circumferential face and valve seat interior surface keeps sealing state, and all the problem of sealing variation appears in various degree the ball valve that exists after long-time use at present; In order to address the above problem; People improve seal ring, and for example the disclosed a kind of ball valve of Chinese patent document is with compound seal element [authorize publication number CN2512961Y], be by the silicone rubber O-ring seals with gather tetrafluoro ball face sealing circle carry out machinery compound constitute; The combination of the material through two different hardness changes the characteristic of seal element, increases the working life of seal element.But can not get compensating in long-time back seal ring and the spool wearing and tearing back abrasion loss amount used, make the sealing variation of seal ring and spool.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of sealing configuration of ball valve, and it is stable that the sealing structure has sealing effect, the characteristics of long service life.
The purpose of the utility model can realize through following technical proposal: a kind of sealing configuration of ball valve; Described ball valve comprises valve body and the spool that is arranged in the valve body; It is characterized in that; This sealing configuration comprises seal ring, and described seal ring is arranged between valve body and the spool, and described seal ring one end face can lean with described spool; Between seal ring and valve body, be provided with and be in compressive state and can make seal ring have the elastic component towards valve core movement trend, the hardness of described elastic component is less than seal ring hardness; Offer the locating slot of annular on the described seal ring, described elastic component is socketed in this locating slot, and described elastic component can lean with above-mentioned valve body; Have the bump of annular on the described seal ring, this bump is positioned at a side of locating slot, and above-mentioned elastic component can be resisted against on this bump.
Offer some passages in the valve body, spool is arranged on the intersection of passage, and ball valve also comprises valve rod, and valve rod is arranged on the valve body and links to each other with spool controls the rotation of spool, drives valve core rotation through rotation valve rod and realizes opening or closing of valve; Because the hardness of elastic component less than the hardness of seal ring, makes the elasticity of seal ring increase when seal ring receives the spool extruding, increases the working life of seal ring; During installation; Elastic component is compressed packs between valve body and the spool, and after long-term the use, the wearing and tearing that seal ring can receive spool make the sealing of seal ring reduce; Elastic component can be expanded the wear extent of compensation sealing circle, makes seal ring and spool can keep good sealing state all the time.
In the sealing configuration of above-mentioned ball valve, described seal ring adopts polytetrafluoroethylmaterial material to process.Teflon all is an inertia to nearly all chemical substance, and has that friction factor is little, stable performance, is difficult for the comprehensive feature aging, that temperature applicable range is wide and sealability is good.
In the sealing configuration of above-mentioned ball valve, the material of described elastic component is a rubber.The relative teflon of the hardness of rubber wants little and rubber elasticity good.
Compared with prior art, the sealing configuration of this ball valve has the following advantages:
1, the hardness of the hardness ratio seal ring of elastic component is little, has increased the elasticity of seal ring, has reduced the wear extent that seal ring receives, and has increased the working life of seal ring.
2, between seal ring and valve body, be provided with the elastic component that is in compressive state with crossing, elastic component expansion compensate for wear amount behind ring wear, the sealing that has improved seal ring is stable.
Description of drawings
Fig. 1 is the structural representation of ball valve and this sealing configuration.
Fig. 2 is the local enlarged diagram at A place among Fig. 1.
Fig. 3 is the seal ring at A place among Fig. 1 and the location diagram that valve body is installed.
Among the figure, 11a, valve body; 11b, passage; 12, spool; 13, valve rod; 14a, seal ring; 14b, locating slot; 14c, bump; 15, elastic component.
Embodiment
Like Fig. 1, Fig. 2 and shown in Figure 3; A kind of sealing configuration of ball valve; Described ball valve comprises valve body 11a and the spool 12 that is arranged in the valve body 11a; This sealing configuration comprises seal ring 14a, and described seal ring 14a is arranged between valve body 11a and the spool 12, and described seal ring 14a one end face can lean with described spool 12; Between seal ring 14a and valve body 11a, be provided with and be in compressive state and can make seal ring 14a have the elastic component 15 towards spool 12 movement tendencies, the hardness of described elastic component 15 is less than seal ring 14a hardness; Offer the locating slot 14b of annular on the described seal ring 14a, described elastic component 15 is socketed among this locating slot 14b, and described elastic component 15 can lean with above-mentioned valve body 11a; Have the bump 14c of annular on the described seal ring 14a, this bump 14c is positioned at the side of locating slot 14b, and above-mentioned elastic component 15 can be resisted against on this bump 14c.
In the present embodiment, described seal ring 14a adopts polytetrafluoroethylmaterial material to process.Teflon all is an inertia to nearly all chemical substance, and has that friction factor is little, stable performance, is difficult for the comprehensive feature aging, that temperature applicable range is wide and sealability is good.The material of elastic component 15 is a rubber, and the relative teflon of the hardness of rubber wants little and rubber elasticity good.
In valve body 11a, offer some passage 11b; Spool 12 is arranged on the intersection of passage 11b; Ball valve also comprises valve rod 13; Valve rod 13 is arranged on to link to each other on the valve body 11a and with spool 12 controls the rotation of spool 12, drives spool 12 rotations through rotation valve rod 13 and realizes opening or closing of valve; Because the hardness of elastic component 15 less than the hardness of seal ring 14a, makes the elasticity of seal ring 14a increase when seal ring 14a receives spool 12 extruding, increases the working life of seal ring 14a; During installation; 15 compressed packing between valve body 11a and the spool 12 of elastic component; After long-term the use; The wearing and tearing that seal ring 14a can receive spool 12 make the sealing of seal ring 14a reduce, and elastic component 15 can be expanded the wear extent of compensation sealing circle 14a, makes seal ring 14a and spool 12 can keep good sealing state all the time.
Claims (3)
1. the sealing configuration of a ball valve; Described ball valve comprises valve body and the spool that is arranged in the valve body, it is characterized in that this sealing configuration comprises seal ring; Described seal ring is arranged between valve body and the spool; Described seal ring one end face can lean with described spool, between seal ring and valve body, is provided with to be in compressive state and can to make seal ring have the elastic component towards valve core movement trend, and the hardness of described elastic component is less than seal ring hardness; Offer the locating slot of annular on the described seal ring, described elastic component is socketed in this locating slot, and described elastic component can lean with above-mentioned valve body; Have the bump of annular on the described seal ring, this bump is positioned at a side of locating slot, and above-mentioned elastic component can be resisted against on this bump.
2. the sealing configuration of ball valve according to claim 1 is characterized in that, described seal ring adopts polytetrafluoroethylmaterial material to process.
3. the sealing configuration of ball valve according to claim 1 is characterized in that, the material of described elastic component is a rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200456398U CN202469060U (en) | 2012-02-14 | 2012-02-14 | Sealing structure of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200456398U CN202469060U (en) | 2012-02-14 | 2012-02-14 | Sealing structure of ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202469060U true CN202469060U (en) | 2012-10-03 |
Family
ID=46917219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200456398U Expired - Fee Related CN202469060U (en) | 2012-02-14 | 2012-02-14 | Sealing structure of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202469060U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090286A (en) * | 2016-08-23 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of ball valve of good leak tightness |
| CN106090287A (en) * | 2016-08-23 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | The pneumatic ball valve that a kind of reliability is high |
| CN110966434A (en) * | 2018-09-29 | 2020-04-07 | 浙江三花汽车零部件有限公司 | Ball valve |
| CN115380182A (en) * | 2020-07-27 | 2022-11-22 | 翰昂汽车零部件有限公司 | Hard sealing element for plug valve on cylindrical wall |
| US20250075805A1 (en) * | 2023-09-06 | 2025-03-06 | Hanon Systems | Reinforced rotary valve seal assembly |
-
2012
- 2012-02-14 CN CN2012200456398U patent/CN202469060U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090286A (en) * | 2016-08-23 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of ball valve of good leak tightness |
| CN106090287A (en) * | 2016-08-23 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | The pneumatic ball valve that a kind of reliability is high |
| CN110966434A (en) * | 2018-09-29 | 2020-04-07 | 浙江三花汽车零部件有限公司 | Ball valve |
| CN115380182A (en) * | 2020-07-27 | 2022-11-22 | 翰昂汽车零部件有限公司 | Hard sealing element for plug valve on cylindrical wall |
| US20250075805A1 (en) * | 2023-09-06 | 2025-03-06 | Hanon Systems | Reinforced rotary valve seal assembly |
| US12313187B2 (en) * | 2023-09-06 | 2025-05-27 | Hanon Systems | Reinforced rotary valve seal assembly |
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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: 20121003 Termination date: 20130214 |