CN202118292U - Trunnion mounted ball valve - Google Patents
Trunnion mounted ball valve Download PDFInfo
- Publication number
- CN202118292U CN202118292U CN201120192800XU CN201120192800U CN202118292U CN 202118292 U CN202118292 U CN 202118292U CN 201120192800X U CN201120192800X U CN 201120192800XU CN 201120192800 U CN201120192800 U CN 201120192800U CN 202118292 U CN202118292 U CN 202118292U
- Authority
- CN
- China
- Prior art keywords
- valve
- sleeve
- spheroid
- ball valve
- 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
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Abstract
The utility model discloses a trunnion mounted ball valve, which comprises a valve body, a valve seat, a bonnet, a ball and a valve stem. A gland flange is arranged above the valve body, a sleeve surrounds the lower portion of the valve stem, the top of the sleeve is butted against the bottom of the gland flange, and the bottom of the sleeve is further butted against the ball. The sleeve surrounds the valve stem, and pressure of a pipeline is applied to the valve seat, transmitted to the ball from the valve seat and then transmitted to the sleeve from the ball and finally applied to the valve body when the valve is shut off, thereby the valve stem is prevented from bearing the pressure directly, the service life of the valve stem is prolonged and sealing of the valve stem is facilitated.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of fixing ball valve.
Background technique
Fixing ball valve is a high-performance ball valve of new generation, is mainly used in the transmission of fluid or gas pipeline, and block fluid or gas are so that safeguard, overhaul or construction, industries such as extensive use petroleum refining, combustion gas conveying, chemical industry, papermaking, pharmacy, water conservancy, electric power.
Different according to applying working condition, the ball valve that has needs pivot structure, and heavy caliber fixing ball valve pivot structure mainly is in the market: spheroid 4 relies on valve rod 5 location, and promptly valve rod directly is inserted in the top of spheroid, and spheroid relies on the valve rod location, shown in accompanying drawing 1.
Yet the ball valve of said structure is in switching process, and valve rod not only need bear twisting stress, also will bear channel pressure, thereby has influenced the working life of valve rod, also can produce harmful effect to the sealing of valve rod simultaneously.
Summary of the invention
The utility model purpose provides a kind of fixing ball valve.
For achieving the above object; The technological scheme that the utility model adopts is: a kind of fixing ball valve; Comprise valve body, valve seat, valve gap, spheroid and valve rod, the top of valve body is provided with gland flange, and the lower peripheral of said valve rod is provided with sleeve; The top of sleeve and the bottom of said gland flange offset, and the bottom and the spheroid of sleeve offset.
The utility model has enclosed sleeve on valve rod, bear channel pressure through sleeve, because the top of sleeve is butted on the bottom surface of gland flange; And gland flange is fixedly connected with valve body, therefore when valve closing, because line pressure acts on valve seat; Pass to spheroid by valve seat; Pass to sleeve by spheroid, finally bear, thereby avoided valve rod directly to bear the problem that pressure brings by valve body.
In the technique scheme, be provided with bearing between said sleeve and the spheroid.Thereby spheroid and sleeve are rotationally connected,, do not influence the normal rotation of spheroid and realize the keying of ball valve even can relatively rotate between spheroid and the sleeve.
In the technique scheme, be provided with pad between the bottom of said sleeve and the spheroid.
In the technique scheme, the end face of said sleeve is provided with at least 1 and lifts the hole.
Optimized technical scheme, the said hole that lifts is a tapped hole.The effect that lifts the hole is the convenient sleeve that takes out in the ball valve disassembly process.As tapped hole being set, when needs take out sleeve, can utilizing bolt to be screwed in the tapped hole, thereby sleeve taken out through lifting bolt at the sleeve end face; Preferably, lifting the hole is 4, circumferentially is distributed in the end face of sleeve.
Because the technique scheme utilization, the advantage that the utility model compared with prior art has is:
1, the utility model is provided with sleeve in the lower peripheral of valve rod, during valve closing, because line pressure acts on valve seat; Pass to spheroid by valve seat; Pass to sleeve by spheroid, finally bear, thereby avoided valve rod directly to bear channel pressure by valve body; Prolong the working life of valve rod, and helped the sealing at valve rod place.
2, the sleeve of the utility model is independent parts, thereby can select material different according to different working condition pressures, and Economy is better; Also make things convenient for simultaneously the manufacturing of sleeve and gland flange, practiced thrift cost.
3, the utility model is simple in structure, is easy to processing and fabricating, is particularly useful for making into the heavy caliber fixing ball valve.
Description of drawings
Fig. 1 is the structural representation of fixing ball valve in the background technique;
Fig. 2 is the utility model embodiment one a structural representation;
Fig. 3 is the partial view of Fig. 2;
Fig. 4 is the A portion enlarged view of Fig. 3.
Wherein: 1, valve gap; 2, valve seat; 3, valve body; 4, spheroid; 5, valve rod; 6, gland flange; 7, sleeve; 8, bearing; 9, lift the hole; 10, filler.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment one
Shown in Fig. 2 ~ 4, a kind of fixing ball valve comprises valve gap 1, valve seat 2, valve body 3, spheroid 4 and valve rod 5; The top of valve body is provided with gland flange 6; The lower peripheral of said valve rod is provided with sleeve 7, and the top of sleeve and the bottom of said gland flange offset, and the bottom and the spheroid of sleeve offset.Be provided with filler 10 between gland flange and the valve rod.
Be provided with bearing 8 between said sleeve and the spheroid.Thereby spheroid and sleeve are rotationally connected,, do not influence the normal rotation of spheroid and realize the keying of ball valve even can relatively rotate between spheroid and the sleeve.
Be provided with pad between the bottom of said sleeve and the spheroid.
The end face of said sleeve is provided with 4 and lifts hole 9, and the said hole that lifts is a tapped hole, and circumferentially is distributed in the end face of sleeve.
The utility model has enclosed sleeve on valve rod, bear channel pressure through sleeve, because the top of sleeve is butted on the bottom surface of gland flange; And gland flange is fixedly connected with valve body, therefore when valve closing, because line pressure acts on valve seat; Pass to spheroid by valve seat; Pass to sleeve by spheroid, finally bear, thereby avoided valve rod directly to bear the problem that pressure brings by valve body.
Claims (5)
1. fixing ball valve; Comprise valve gap (1), valve seat (2), valve body (3), spheroid (4) and valve rod (5); The top of valve body is provided with gland flange (6); It is characterized in that: the lower peripheral of said valve rod is provided with sleeve (7), and the top of sleeve and the bottom of said gland flange offset, and the bottom and the spheroid of sleeve offset.
2. fixing ball valve according to claim 1 is characterized in that: be provided with bearing (8) between said sleeve and the spheroid.
3. fixing ball valve according to claim 1 is characterized in that: be provided with pad between the bottom of said sleeve and the spheroid.
4. fixing ball valve according to claim 1 is characterized in that: the end face of said sleeve is provided with at least 1 and lifts hole (9).
5. fixing ball valve according to claim 4 is characterized in that: the said hole that lifts is a tapped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120192800XU CN202118292U (en) | 2011-06-09 | 2011-06-09 | Trunnion mounted ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120192800XU CN202118292U (en) | 2011-06-09 | 2011-06-09 | Trunnion mounted ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118292U true CN202118292U (en) | 2012-01-18 |
Family
ID=45459359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120192800XU Expired - Fee Related CN202118292U (en) | 2011-06-09 | 2011-06-09 | Trunnion mounted ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027326A (en) * | 2018-08-24 | 2018-12-18 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of multi-pipeline conducting valve |
-
2011
- 2011-06-09 CN CN201120192800XU patent/CN202118292U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027326A (en) * | 2018-08-24 | 2018-12-18 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of multi-pipeline conducting valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20180609 |