CN2129844Y - Ball type butlerfly valve - Google Patents
Ball type butlerfly valve Download PDFInfo
- Publication number
- CN2129844Y CN2129844Y CN 92214929 CN92214929U CN2129844Y CN 2129844 Y CN2129844 Y CN 2129844Y CN 92214929 CN92214929 CN 92214929 CN 92214929 U CN92214929 U CN 92214929U CN 2129844 Y CN2129844 Y CN 2129844Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- ball type
- seal ring
- butterfly plate
- 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 provides a ball type butterfly valve, comprising a valve body, a valve shaft whose one end extends to the valve body, and a ball type butterfly plate which is arranged in a valve hole and is arranged on the valve shaft. A press cover is arranged on the end surface of the valve body, and the end surface of the valve body is positioned on the butterfly plate. A floating frictional ball type seal ring is arranged between the valve body and the butterfly plate. The other end of the valve body is provided with a moving flange, a seal ring is arranged between the valve body and the moving flange, and the valve body and the moving flange are provided with axial limit mechanisms. The moving flange is used to compensate the variation of axial dimension, and the axial limit mechanisms are used to adjust structural length. The utility model has the advantages of convenient operation and maintenance, good seal performance, long service life, big circulating through diameter, small pressure, and little flux loss.
Description
The utility model relates to a kind of valve, particularly be a kind of Ball type butlerfly valve.
The valve that existing flange connects, contain folder is connected, its structure length all is changeless, valve is installed on the pipeline, dismounting, maintenance and inspection, adjustment sealability are all very difficult, as changing seal ring or valve, just can carry out after not only will pulling down valve but also will pulling down parts such as the drive unit of valve, valve shaft, flap butterfly plate, will install once more after valve is pulled down, difficulty is sizable.Stimulating the menstrual flow of valve is big more, and installation difficulty is just big more, and the end face seal quality after being difficult to guarantee to install, and can cause the jointing medium to leak in a large number when serious.
For the ease of dismounting or the influence of expanding with heat and contract with cold of compensation pipeline, usually near valve, be equipped with expansion bend, when existing pipeline extension device is elongated to upper limit size, because of infinite place mechanism, in case manifold pressure increases, interior cover separates with overcoat, the accident of being permitted appearance can occur never filling in the engineering, if it is expansion bend is installed in pipe bent position, just more dangerous.
Existing butterfly valve mostly adopts the interference flexible sealing, and this kind sealing can only be used for the low pressure operating mode, and operational torque is big, and the working life of valve is short.
In view of above reason, the purpose of this utility model be for provide a kind of simple in structure, cost is low, easy for operation, that structure length is adjustable is safe and reliable, long service life, be suitable for the Ball type butlerfly valve of middle pressure, low pressure liquid, gas medium.
The utility model is achieved like this: valve body is arranged in the utility model, that one end can be connected with drive unit and the other end stretches into the valve shaft in the valve body, place in the valve opening of valve body and be contained in spherical butterfly plate on the valve shaft, be positioned at spherical butterfly plate place at the valve body end face and gland be housed by coupling, the unsteady wiping formula ball face sealing circle (7) that cooperates with spherical butterfly plate is arranged between valve body and gland, on the valve body the other end, loose flange is arranged, seal ring (8) is arranged between valve body and loose flange, axial limiting mechanism (referring to Fig. 1) is arranged on loose flange and the valve body, the wiping formula ball face sealing circle that set to float can guarantee that seal ring (7) and butterfly plate sphere be close to one heart, good sealing effect sets up position-limit mechanism can guarantee safety reliability in the using process.
Above-mentioned seal ring (8) can adopt L RunddichtringO (referring to Fig. 1).
Be provided with lining frame (referring to Fig. 1) in the above-mentioned seal ring (8), prevent that loose flange crush seal circle (8) back seal ring (8) from inwardly shrinking good seal performance.
Above-mentioned axial limiting mechanism comprises the bolt that is contained on loose flange and the valve body, with bolt nut engaged (referring to Fig. 1), adjusts the sealability that nut can be adjusted structure length or seal ring.
The butterfly spring of being close to loose flange (referring to Fig. 1) that is contained on the bolt is arranged in the above-mentioned axial limiting mechanism, in that to be mounted pipeline little when mobile, seal ring (8) is close on the end face of flange that is mounted pipeline, the plastic deformation of compensation sealing circle, sealing effect is good.
When axial limiting mechanism is installed, bolt is through the flange that is mounted pipeline successively, the back is fixed with nut on the fastening flange on loose flange, the valve body.
During the utility model work, under the effect of drive unit, valve shaft drives butterfly plate and does 90 ° of revolutions, and pipeline internal medium is played the throttling effect of damming.In the rotating and limiting mechanism on the bolt loose flange right side nut just can adjust structure length or sealability.
Compare with known butterfly valve, the utlity model has following advantage:
1, simple in structure, volume is little, cost is low.
2, structure length adjustable, can change within the specific limits, on the limit position of change position-limit mechanism is arranged, guaranteed safety reliability in use.
3, easy for operation, the sealability of dismounting pipeline, adjustment valve, it is convenient to change seal ring.
4, adopt the variation of loose flange compensating axial size, adopt the wiping formula ball face sealing circle that floats, sealability is reliable, long service life, and operational torque is little, and the circulation latus rectum is big, and flow resistance is little, and the pressure loss and flow loss are little, long service life.
5, applied widely, not only be applicable to low pressure but also be applicable to that middle press liquid, gas medium play throttling and dam.
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing, but protection domain of the present utility model is not limited only to the following examples:
Fig. 1 is a structural representation of the present utility model
As can be seen from Figure 1, valve shaft 1 one ends can be connected with drive unit and the other end stretches in the valve body 2.Place the spherical butterfly plate 4 of an end of valve opening 3 to be packed on the valve shaft 1, coupling--bolt 5 passes gland 6, valve body 2 successively and gland 6 is fastened on the valve body 2.The unsteady wiping formula ball face sealing circle 7 that cooperates with spherical butterfly plate is arranged at valve body 2 and 4 of spherical butterfly plates.On the other end of the axial position of valve body 2, L RunddichtringO 8 is housed, is contained in the loose flange 9 on the L RunddichtringO 8.Lining frame 10 is arranged in the L RunddichtringO 8.Fastening flange 14 backs that adjusting bolt 12 in the axial limiting mechanism 11 can pass on flange 13 on the connected pipe, loose flange 9, the valve body 2 successively are close to connected pipe and valve body with nut 15.Butterfly spring 16, adjusting nut 17 are contained on the adjusting bolt 12 and make butterfly spring 16 be close to loose flange 9.
Claims (5)
1, Ball type butlerfly valve, it is characterized in that in the described butterfly valve valve body being arranged, that one end can be connected with drive unit and the other end stretches into the valve shaft in the valve body, place in the valve opening of valve body and be contained in spherical butterfly plate on the valve shaft, be positioned at spherical butterfly plate place at the valve body end face and gland be housed by coupling, the unsteady wiping formula ball face sealing circle (7) that cooperates with spherical butterfly plate is arranged between valve body and gland, on the valve body the other end, loose flange is arranged, seal ring (8) is arranged between valve body and loose flange, on loose flange and the valve body axial limiting mechanism is arranged.
2, Ball type butlerfly valve as claimed in claim 1 is characterized in that described seal ring (8) adopts the L RunddichtringO.
3, Ball type butlerfly valve as claimed in claim 2 is characterized in that in the described seal ring 8 the lining frame being arranged.
4, Ball type butlerfly valve as claimed in claim 1 is characterized in that described axial limiting mechanism comprises the bolt that is contained on loose flange and the valve body, the nut equipped with bolt.
5, Ball type butlerfly valve as claimed in claim 4 is characterized in that the butterfly spring of being close to loose flange that is contained on the bolt is arranged in the described axial limiting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92214929 CN2129844Y (en) | 1992-07-15 | 1992-07-15 | Ball type butlerfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92214929 CN2129844Y (en) | 1992-07-15 | 1992-07-15 | Ball type butlerfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2129844Y true CN2129844Y (en) | 1993-04-14 |
Family
ID=33763936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92214929 Expired - Fee Related CN2129844Y (en) | 1992-07-15 | 1992-07-15 | Ball type butlerfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2129844Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287545A (en) * | 2011-07-20 | 2011-12-21 | 浙江宝龙阀门制造有限公司 | Butterfly ball valve |
| CN107620802A (en) * | 2017-09-06 | 2018-01-23 | 胜利阀门有限公司 | A kind of soft tube stretches butterfly valve |
-
1992
- 1992-07-15 CN CN 92214929 patent/CN2129844Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287545A (en) * | 2011-07-20 | 2011-12-21 | 浙江宝龙阀门制造有限公司 | Butterfly ball valve |
| CN102287545B (en) * | 2011-07-20 | 2013-05-01 | 浙江宝龙阀门制造有限公司 | Butterfly ball valve |
| CN107620802A (en) * | 2017-09-06 | 2018-01-23 | 胜利阀门有限公司 | A kind of soft tube stretches butterfly valve |
| CN107620802B (en) * | 2017-09-06 | 2023-08-08 | 胜利阀门有限公司 | Flexible rotary pipe telescopic butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |