CN203322364U - Ball valve with hard-seal valve base - Google Patents
Ball valve with hard-seal valve base Download PDFInfo
- Publication number
- CN203322364U CN203322364U CN2013204150403U CN201320415040U CN203322364U CN 203322364 U CN203322364 U CN 203322364U CN 2013204150403 U CN2013204150403 U CN 2013204150403U CN 201320415040 U CN201320415040 U CN 201320415040U CN 203322364 U CN203322364 U CN 203322364U
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- China
- Prior art keywords
- valve
- tongue
- valve seat
- ball
- annular
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- Expired - Fee Related
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Abstract
The utility model discloses a ball valve with a hard-seal valve base. The ball valve comprises a valve body, a ball body valve core, the valve base and a valve rod. The ball body valve core and the valve base are arranged in a valve body inner cavity, the valve body inner cavity is further provided with an upper bearing plate and a lower bearing plate, the ball body valve core is arranged between the upper bearing plate and the lower bearing plate in a rotatable mode, and the top portion of the ball body valve core is connected with the valve rod. The ball valve with the hard-seal valve base is characterized in that the valve base is axially and movably arranged inside a valve base hole of a pressing ring, the pressing ring is fixedly installed on the wall of the valve body inner cavity, an elastic component is arranged on the back face of the valve base, and the hard-seal face of the valve base is tightly attached to the ball face of the ball body valve core under the pushing of the elastic component; an annular turnup tongue is arranged on the outer circle of the valve base, the top portion of the annular turnup tongue is tightly pressed on the wall of the valve body inner cavity through the pressing ring, sealing gaskets are arranged on the top portion of the annular turnup tongue, the left side end face, facing the pressing ring, of the annular turnup tongue, and the right side end face, facing the wall of the valve body inner cavity, of the annular turnup tongue respectively, and the root portion of the annular turnup tongue is connected with the outer circle of the valve base. The ball valve with the hard-seal valve base has the advantages of being good in sealing performance and the service life of the ball valve is prolonged.
Description
Technical field:
The utility model relates to a kind of improvement invention of ball valve.
Background technique:
At present, the structure of hard seal valve seat ball valve is so substantially: comprise valve body, ball valve core, valve seat and valve rod, ball valve core, valve seat are located at body cavity, body cavity also is provided with lower support plate, ball valve core rotatably arranges between upper lower support plate, and the top of ball valve core is connected with valve rod.Wherein, the valve seat of only a few ball valve is hard-wired, and the valve seat of most of ball valve can be axially movable in valve seat orifice, and between valve seat and valve seat orifice, by the sealing of O type circle, shortcoming is: the sealing of O type circle easily damages, and causes ball valve short working life.
Summary of the invention:
For the deficiencies in the prior art, the purpose of this utility model aims to provide a kind of good airproof performance, improves the hard seal valve seat ball valve in working life.
The technical solution adopted in the utility model is:
A kind of hard seal valve seat ball valve, comprise valve body, ball valve core, valve seat and valve rod, ball valve core, valve seat are located at body cavity, body cavity also is provided with lower support plate, ball valve core rotatably arranges between upper lower support plate, the top of ball valve core is connected with valve rod, it is characterized in that: valve seat is axially movable setting in the valve seat orifice of trim ring, trim ring fixedly mounts on the body cavity wall, the back side of valve seat is provided with elastic component, under the promotion of elastic component, the hard sealing surface of valve seat is close to the sphere of ball valve core; The outer ring of described valve seat is provided with annular and sticks up tongue, the top that annular is stuck up tongue is pressed on the body cavity wall by trim ring, annular stick up the top of tongue and trim ring and body cavity wall over against the left and right side end face be respectively equipped with gasket seal, the root that annular is stuck up tongue is connected in the valve seat outer ring, when valve seat is movable, the root that annular is stuck up tongue relies on its resiliently deformable to make the top of sticking up tongue keep motionless.
The hard seal valve seat ball valve of technique scheme, when ball valve is closed, the left and right side end face that sticks up the tongue top due to annular has reliable sealing respectively and between trim ring and body cavity wall, so the medium of ball valve import just can not enter into by the free gap between valve seat and valve seat orifice in valve pocket, and when valve seat is movable, the root that annular is stuck up tongue relies on its elastic deformation energy to make the top that annular is stuck up tongue remain motionless, guarantees sealing reliability, and long-term use is not is not worn and torn.
As preferably, described annular sticks up tongue and valve seat is structure as a whole.The sectional shape that described annular is stuck up tongue is T-shaped.Described gasket seal adopts spiral wound gasket.
The accompanying drawing explanation:
Fig. 1 is structural drawing of the present utility model,
The I section enlarged view that Fig. 2 is Fig. 1.
Embodiment:
As shown in the figure, hard seal valve seat ball valve of the present utility model, comprise that valve body is (by left valve barrel 9, middle valve body 8 and right valve barrel 7 are formed by fixedly connecting), ball valve core 5, valve seat 1 and valve rod 6, ball valve core 5, valve seat 1 is located at body cavity, body cavity also is provided with lower support plate 4, ball valve core 5 rotatably arranges between upper lower support plate 4, the top of ball valve core 5 is connected with valve rod 6, valve seat 1 is axially movable setting in the valve seat orifice of trim ring 2, trim ring 2 fixedly mounts on the body cavity wall by screw, the back side of valve seat 1 is provided with elastic component 3(and is comprised of spring seat 11 and spring 12), under the promotion of elastic component 3, the sphere of ball valve core 5 is close in the front of valve seat 1 (hard sealing surface), the outer ring of described valve seat 1 is provided with annular and sticks up tongue (being comprised of top 1a and root 1b), the sectional shape that described annular is stuck up tongue is T-shaped, the top 1a(that annular is stuck up tongue is T-shape head section) by trim ring 2, be pressed on the body cavity wall, annular stick up the top 1a of tongue and trim ring and body cavity wall over against the left and right side end face be respectively equipped with gasket seal 10, gasket seal 10 adopts spiral wound gasket, the root 1b that annular is stuck up tongue is connected in valve seat 1 outer ring, annular sticks up tongue and valve seat is structure as a whole, when valve seat 1 is movable, the root 1b that annular is stuck up tongue relies on its resiliently deformable to make the top 1a that sticks up tongue keep motionless.
Hard seal valve seat ball valve of the present utility model, when ball valve is closed, the left and right side end face that sticks up the tongue top due to annular has reliable sealing respectively and between trim ring and body cavity wall, so the medium of ball valve import just can not enter into by the free gap between valve seat and valve seat orifice in valve pocket, and when valve seat is movable, the root that annular is stuck up tongue relies on its elastic deformation energy to make the top that annular is stuck up tongue remain motionless, guarantees sealing reliability, and long-term use is not is not worn and torn.
Claims (4)
1. a hard seal valve seat ball valve, comprise valve body, ball valve core, valve seat and valve rod, ball valve core, valve seat are located at body cavity, body cavity also is provided with lower support plate, ball valve core rotatably arranges between upper lower support plate, the top of ball valve core is connected with valve rod, it is characterized in that: valve seat is axially movable setting in the valve seat orifice of trim ring, trim ring fixedly mounts on the body cavity wall, the back side of valve seat is provided with elastic component, under the promotion of elastic component, the hard sealing surface of valve seat is close to the sphere of ball valve core; The outer ring of described valve seat is provided with annular and sticks up tongue, the top that annular is stuck up tongue is pressed on the body cavity wall by trim ring, annular stick up the top of tongue and trim ring and body cavity wall over against the left and right side end face be respectively equipped with gasket seal, the root that annular is stuck up tongue is connected in the valve seat outer ring, when valve seat is movable, the root that annular is stuck up tongue relies on its resiliently deformable to make the top of sticking up tongue keep motionless.
2. a kind of hard seal valve seat ball valve as claimed in claim 1, it is characterized in that: described annular sticks up tongue and valve seat is structure as a whole.
3. a kind of hard seal valve seat ball valve as claimed in claim 1, it is characterized in that: the sectional shape that described annular is stuck up tongue is T-shaped.
4. a kind of hard seal valve seat ball valve as claimed in claim 1, is characterized in that: described gasket seal employing spiral wound gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204150403U CN203322364U (en) | 2013-07-12 | 2013-07-12 | Ball valve with hard-seal valve base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204150403U CN203322364U (en) | 2013-07-12 | 2013-07-12 | Ball valve with hard-seal valve base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322364U true CN203322364U (en) | 2013-12-04 |
Family
ID=49661716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204150403U Expired - Fee Related CN203322364U (en) | 2013-07-12 | 2013-07-12 | Ball valve with hard-seal valve base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909821A (en) * | 2016-06-16 | 2016-08-31 | 五洲阀门股份有限公司 | High-temperature high-pressure rigidity seal ball valve |
-
2013
- 2013-07-12 CN CN2013204150403U patent/CN203322364U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909821A (en) * | 2016-06-16 | 2016-08-31 | 五洲阀门股份有限公司 | High-temperature high-pressure rigidity seal ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Ball valve with hard-seal valve base Effective date of registration: 20140530 Granted publication date: 20131204 Pledgee: Zhejiang Ruian rural cooperative bank square sub branch Pledgor: Kairuite Valve Industry Co., Ltd. Registration number: 2014990000428 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20151126 Granted publication date: 20131204 Pledgee: Ruian Zhejiang rural commercial bank Limited by Share Ltd Square Branch Pledgor: Kairuite Valve Industry Co., Ltd. Registration number: 2014990000428 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20151126 Registration number: 2014990000428 Pledgee after: Ruian Zhejiang rural commercial bank Limited by Share Ltd Square Branch Pledgee before: Zhejiang Ruian rural cooperative bank square sub branch |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20180712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |