CN201262249Y - Anti-abdominal pressure locking apparatus of ceramic full-lining type ball valve - Google Patents
Anti-abdominal pressure locking apparatus of ceramic full-lining type ball valve Download PDFInfo
- Publication number
- CN201262249Y CN201262249Y CNU2008201455076U CN200820145507U CN201262249Y CN 201262249 Y CN201262249 Y CN 201262249Y CN U2008201455076 U CNU2008201455076 U CN U2008201455076U CN 200820145507 U CN200820145507 U CN 200820145507U CN 201262249 Y CN201262249 Y CN 201262249Y
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- CN
- China
- Prior art keywords
- valve
- valve body
- rotating rod
- swing arm
- ceramic
- 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
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- Lift Valve (AREA)
Abstract
A abdominal-pressure dead-lock prevention device of a ceramic full-lining ball valve comprises a valve body; a rotating rod arranged in the valve body; a ball body matched with valve seats on two sides; a ceramic sleeve sleeved outside the ball body and two valve seats; and a sealing ring, wherein, a shaft shoulder is arranged on the rotating rod; the rotating rod drives the ball body to rotate to start or close the valve; a boss is formed on the valve body; a shaft sleeve is sleeved outside the shaft shoulder of the rotating rod and leaned against the boss for positioning; the sealing ring is sleeved on the rotating rod; one end of the sealing ring is leaned against the shaft sleeve; the other end thereof is leaned against the ceramic sleeve; and a sealing part is added between the valve body and the ceramic sleeve. Through the technical scheme, the shaft sleeve and the sealing ring do not rotate along with the rotating rod, so that the height of the sealing ring can not be reduced, and gas or liquid can be effectively prevented from moving towards the space between the valve body and the ceramic sleeve. In addition, the sealing part is added between the valve body and the ceramic sleeve, so that two defensive lines are formed, and the phenomenon that abdominal pressure is formed by gas or liquid to press the two valve seats inwards and press the ball body to cause dead lock is prevented.
Description
Technical field:
The utility model relates to a kind of pottery lining type ball valve entirely, and is concrete, and the anti-abdominal pressure locking device of lining type ball valve is relevant entirely with a kind of pottery.
Background technique:
The structure of the full lining type ball valve of pottery of prior art comprises as shown in Figure 1:
Valve body 1 ';
Swing arm 2 ' is arranged in the valve body, which is provided with the shaft shoulder 21 ';
Porcelain bushing 5 ' is set in outside spheroid 3 ' and the valve seat 4 ';
Seal ring 6 ', it is resisted against between the sleeve pipe 5 ' and the shaft shoulder 21 ';
Swing arm 2 ' drives spheroid 3 ' and rotates the open and close valve;
The full lining type ball valve of the pottery of said structure, there is bigger shortcoming: swing arm is fixed by seal ring, prevent that it is to downslide, and swing arm when rotation, seal ring therewith rotates, thereby easily causes the lower surface wearing and tearing of seal ring, and swing arm is moved down, influence the rotation of ball valve, destroy spheroid, and, because the wearing and tearing of seal ring, can make gas or liquid via seal ring to fleeing (gapped between valve body and porcelain bushing) between valve body and porcelain bushing, and gas that flows into or liquid form abdominal pressure, two valve seats are inwardly pressed the compressing spheroid, cause locked, different with metal material because of ceramic material, pottery is hard and crisp, drives by force under at locking state, ceramic ball is known from experience broken, shortens the working life of whole ball valve greatly.
Summary of the invention:
The utility model purpose is to overcome above-mentioned shortcoming, and a kind of anti-abdominal pressure locking device simple in structure is provided, and it is applicable to the full lining type ball valve of pottery, has the ball valve life-span of prolongation, and Security is higher, the characteristics that wear-resistant and sealing effect is better.
For reaching above-mentioned purpose, the utility model adopts following technological scheme:
The anti-abdominal pressure locking device of the full lining type ball valve of pottery comprises valve body; Swing arm is arranged in the valve body, which is provided with the shaft shoulder; Spheroid cooperates with the both sides valve seat; Porcelain bushing is set in outside spheroid and two valve seats; Seal ring; Described swing arm drives spheroid and rotates the open and close valve; Described valve body is provided with a boss, one axle sleeve is sheathed on the swing arm shaft shoulder place outside and is resisted against on the boss and locatees, and described seal ring is set on the swing arm, and an end is resisted against on the axle sleeve, the other end is resisted against on the porcelain bushing, and sets up a Sealing between valve body and porcelain bushing.
Described Sealing is located at porcelain bushing and valve body two ends, is one " O " RunddichtringO.
Adopt technique scheme, when swing arm rotates, pressure seal ring under the axle sleeve, axle sleeve and seal ring are not rotated with swing arm, therefore the height of seal ring can not wear and tear, and swing arm is by the axle sleeve location, can not move down, influence the rotation of ball valve, can prevent effectively that gas or liquid from fleeing between valve body and porcelain bushing via seal ring yet because of the wearing and tearing of seal ring, in addition owing between valve body and porcelain bushing, set up a Sealing, even have fraction gas or liquid to overflow, also can sealed stop, form the twice defence line, prevent that effectively gas or liquid from forming abdominal pressure, pressing in two valve seats, the compressing spheroid, form locked situation (because of ceramic material different with metal material, pottery is hard and crisp, drive by force under at locking state, ceramic ball is known from experience broken), can guarantee the normal operation of ceramic valve, not only increase the sealing of ceramic valve, also can increase the working life of whole ball valve greatly.
Description of drawings:
Below with accompanying drawing the utility model is described in detail:
Fig. 1 is the utility model prior art constructions schematic representation;
Fig. 2 is a structural representation of the present utility model.
Embodiment:
Below in conjunction with drawings and Examples the utility model is described in detail:
Mode of execution of the present utility model as shown in Figure 2, the anti-abdominal pressure locking device of the full lining type ball valve of pottery comprises valve body 1; Swing arm 2 is arranged in the valve body 1, which is provided with the shaft shoulder 21; Spheroid 3 cooperates with both sides valve seat 4; Porcelain bushing 5 is set in outside spheroid and two valve seats; Seal ring 6; Described swing arm 2 drives spheroid 3 and rotates the open and close valve; Described valve body 1 is provided with a boss 11, one axle sleeve 7 is sheathed on the outside, the swing arm shaft shoulder 21 places and is resisted against location on the boss 11, and described seal ring 6 is set on the swing arm 2, and an end is resisted against on the axle sleeve 7, the other end is resisted against on the porcelain bushing 5, and sets up a Sealing 8 between valve body and porcelain bushing.
In order to process and easy to use, described Sealing 8 can be located at porcelain bushing 5 and valve body 1 two ends, is one " O " RunddichtringO.
During action, swing arm rotates, pressure seal ring under the axle sleeve, axle sleeve and seal ring are not rotated with swing arm, therefore the height of seal ring can not wear and tear, and swing arm can not move down because of the wearing and tearing of seal ring by the axle sleeve location, influences the rotation of ball valve, can prevent effectively that also gas or liquid from fleeing between valve body and porcelain bushing via seal ring, in addition, owing between valve body and porcelain bushing, set up a Sealing, even have fraction gas or liquid to overflow, also can sealed stop, form the twice defence line, prevent that effectively gas or liquid from forming abdominal pressure, pressing in two valve seats, the compressing spheroid, (different with metal material because of ceramic material, pottery is hard and crisp, drives by force under at locking state to form locked situation, ceramic ball is known from experience broken), can guarantee the normal operation of ceramic valve, not only increase the sealing effect of ball valve, also can increase the working life of whole ball valve greatly.
Claims (2)
1, the anti-abdominal pressure locking device of the full lining type ball valve of pottery comprises valve body; Swing arm is arranged in the valve body, which is provided with the shaft shoulder; Spheroid cooperates with the both sides valve seat; Porcelain bushing is set in outside spheroid and two valve seats; Seal ring; Described swing arm drives spheroid and rotates the open and close valve; It is characterized in that: described valve body is provided with a boss, one axle sleeve is sheathed on the swing arm shaft shoulder place outside and is resisted against on the boss and locatees, and described seal ring is set on the swing arm, and an end is resisted against on the axle sleeve, the other end is resisted against on the porcelain bushing, and sets up a Sealing between valve body and porcelain bushing.
2, the pottery as claimed in claim 1 anti-abdominal pressure locking device of lining type ball valve entirely, it is characterized in that: described Sealing is located at porcelain bushing and valve body two ends, is one " O " RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201455076U CN201262249Y (en) | 2008-09-10 | 2008-09-10 | Anti-abdominal pressure locking apparatus of ceramic full-lining type ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201455076U CN201262249Y (en) | 2008-09-10 | 2008-09-10 | Anti-abdominal pressure locking apparatus of ceramic full-lining type ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201262249Y true CN201262249Y (en) | 2009-06-24 |
Family
ID=40808722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201455076U Expired - Fee Related CN201262249Y (en) | 2008-09-10 | 2008-09-10 | Anti-abdominal pressure locking apparatus of ceramic full-lining type ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201262249Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102893067A (en) * | 2010-02-26 | 2013-01-23 | 株式会社富士金 | Ball valve |
-
2008
- 2008-09-10 CN CNU2008201455076U patent/CN201262249Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102893067A (en) * | 2010-02-26 | 2013-01-23 | 株式会社富士金 | Ball valve |
| CN102893067B (en) * | 2010-02-26 | 2014-07-16 | 株式会社富士金 | Ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xiamen Shengzhong Ceramics Valve Science and Technology Co., Ltd. Assignor: Xu Qiuquan Contract record no.: 2012990000256 Denomination of utility model: Anti-abdominal pressure locking apparatus of ceramic full-lining type ball valve Granted publication date: 20090624 License type: Exclusive License Record date: 20120420 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20160910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |