CN107620802B - Flexible rotary pipe telescopic butterfly valve - Google Patents
Flexible rotary pipe telescopic butterfly valve Download PDFInfo
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- CN107620802B CN107620802B CN201710795381.0A CN201710795381A CN107620802B CN 107620802 B CN107620802 B CN 107620802B CN 201710795381 A CN201710795381 A CN 201710795381A CN 107620802 B CN107620802 B CN 107620802B
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- valve
- valve body
- flow cavity
- butterfly plate
- telescopic pipe
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Abstract
The invention discloses a flexible rotary pipe telescopic butterfly valve, which comprises a valve body and a butterfly plate, wherein a flow cavity is arranged on the valve body; the butterfly plate is connected with a valve rod; the butterfly plate is positioned in the flow cavity; the upper end of the valve rod is connected with a worm gear case on the valve body; the bottom of the valve rod is connected with the bottom of the flow cavity; the valve rod can rotate relative to the valve body, the worm gear box drives the valve rod to rotate, and then the butterfly plate is driven to rotate so as to realize the opening and closing of the flow cavity; a telescopic pipe is arranged in one side of the flow cavity; the valve body is connected with an adjusting limiting screw through a nut, and the adjusting limiting screw is connected with the telescopic pipe. The invention has simple structure, good sealing performance and long service life, and overcomes the adverse effect of installation caused by non-parallel valve flange and pipeline flange surface.
Description
Technical Field
The invention relates to the field of valves, in particular to a flexible rotary tube telescopic butterfly valve.
Background
The pipeline is buried and overhead due to earth crust soil change and the like, the flange faces of the valve and the flange faces of the pipeline cannot be guaranteed to be parallel for a long time, after the bolts between the old valve and the pipeline are removed by replacing the valve, the stress between the flange faces is released, the phenomenon that the valve is not parallel to the flange faces of the pipeline is exposed, and the existing rigid telescopic valve is usually incapable of being matched with the flange faces of the pipeline correctly due to the fact that the left flange face and the right flange face cannot be flexibly rotated, and can be screwed down by the flange bolts forcibly; the neck of the valve flange is easily broken, and the phenomenon of loose sealing of the flange surface is easily caused.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the flexible rotary tube expansion butterfly valve which is simple in structure, convenient to operate and practical.
The invention is realized by the following modes:
the utility model provides a flexible pipe flexible butterfly valve which characterized in that: the valve comprises a valve body 1 and a butterfly plate 3, wherein a flow cavity 101 is arranged on the valve body 1; the butterfly plate 3 is connected with a valve rod 4; the butterfly plate 3 is positioned in the flow cavity 101; the upper end of the valve rod 4 is connected with a worm gear case 5 on the valve body 1; the bottom of the valve rod 4 is connected with the bottom of the flow cavity 101; the valve rod 4 can rotate relative to the valve body 1, and the worm gear case 5 drives the valve rod 4 to rotate, so as to drive the butterfly plate 3 to rotate to realize the opening and closing of the flow cavity 101; a telescopic pipe 9 is arranged in one side of the flow cavity 101; an adjusting limiting screw rod 7 is connected to the valve body 1 through a nut, and the adjusting limiting screw rod 7 is connected with a telescopic pipe 9; a valve sealing ring 2 is connected in the valve body 1 through an adjusting screw 6; the valve sealing ring 2 is connected with or separated from the butterfly plate 3.
Further, the telescopic tube 9 is connected to the valve body 1 through a pressing ring 12; the inner end surface of the pressing ring 12 is provided with an inclined surface, and an included angle alpha is formed between the inclined surface and the horizontal plane.
Further, an axial O-shaped ring 8 is arranged between the pressing ring 12 and the valve body 1.
Further, a connection boss 102 is arranged in the valve body 1, and the connection boss 102 is positioned in the flow cavity 101; the outer wall of the telescopic pipe 9 is attached to the connecting boss 102; a gap delta is formed between the outer surface of the bellows 9 and the bottom of the flow chamber 101.
Further, a radial O-shaped ring 11 is arranged between the connecting boss 102 and the connecting part of the telescopic pipe 9.
The invention has the beneficial effects that: simple structure, convenient operation, long service life and reliable sealing performance.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a partial schematic view of fig. 1 at a.
Detailed Description
The technical scheme of the invention is further specifically described below through specific embodiments and with reference to the accompanying drawings. It should be understood that the embodiments of the present invention are not limited to the following examples, and that any modifications and/or changes made to the present invention will fall within the scope of the present invention.
Examples:
a flexible rotary pipe telescopic butterfly valve, as shown in figure 1, figure 2, comprises a valve body 1, a butterfly plate 3, wherein a flow cavity 101 is arranged on the valve body 1; the butterfly plate 3 is connected with a valve rod 4; the butterfly plate 3 is positioned in the flow cavity 101; the upper end of the valve rod 4 is connected with a worm gear case 5 on the valve body 1; the bottom of the valve rod 4 is connected with the bottom of the flow cavity 101; the valve rod 4 can rotate relative to the valve body 1, and the worm gear case 5 drives the valve rod 4 to rotate, so as to drive the butterfly plate 3 to rotate to realize the opening and closing of the flow cavity 101; a telescopic pipe 9 is arranged in one side of the flow cavity 101; the valve body 1 is connected with an adjusting and limiting screw rod 7 through a nut, and the adjusting and limiting screw rod 7 is connected with a telescopic pipe 9; a valve sealing ring 2 is connected in the valve body 1 through an adjusting screw 6; the valve sealing ring 2 is connected with or separated from the butterfly plate 3; the telescopic pipe 9 is connected to the valve body 1 through a pressing ring 12; the inner end surface of the pressing ring 12 is provided with an inclined surface, and an included angle alpha is formed between the inclined surface and the horizontal surface; a connecting boss 102 is arranged in the valve body 1, and the connecting boss 102 is positioned in the flow cavity 101; the outer wall of the telescopic tube 9 is attached to the connecting boss 102, and a gap delta is formed between the outer surface of the telescopic tube 9 and the bottom of the flow cavity 101.
In the embodiment, an axial O-shaped ring 8 is arranged between the pressing ring 12 and the valve body 1, so that the sealing performance is improved.
In the embodiment, a radial O-shaped ring 11 is arranged between the connecting boss 102 and the connecting part of the telescopic pipe 9, so that the sealing performance is improved.
In the embodiment, the valve sealing ring 2 is fixed on the valve body 1 through a pressing ring, and the adjusting screw 6 can control the compression amount of the valve sealing ring 2 and the butterfly plate 3 so as to achieve the purpose of valve sealing; the telescopic pipe 9 is sleeved in the cavity of the valve body 1, a gap delta is generated, the pressing ring 12 is provided with a chamfer angle alpha, and the telescopic pipe 9 can be flexibly rotated; a gap delta and an included angle alpha are formed between the valve body 1 and the telescopic pipe 9, so that the telescopic pipe 9 is allowed to have a certain flexible rotation angle around the axis of the pipeline, and the adverse effect of installation caused by non-parallel between the valve flange and the flange surface of the pipeline is overcome; the valve is ensured to be sealed by adopting a double-sealing structure of an axial O-shaped ring 8 and a radial O-shaped ring 11; the valve sealing ring 2 is arranged on the valve body 1, so that the medium is prevented from directly sealing the valve sealing ring 2, and the service life of the valve is prolonged.
In the implementation process, the worm gear case 5 or any angular travel device drives the valve rod 4 and the butterfly plate 3 to swing 90 degrees through key connection, so that the purpose of opening and closing the valve is achieved; the telescopic pipe 9 is driven to axially move by the adjusting limiting screw 7, so that the purpose of adjusting the overall axial dimension of the valve is achieved, and the valve is convenient to disassemble and assemble from a pipeline.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (3)
1. The utility model provides a flexible pipe flexible butterfly valve which characterized in that: the valve comprises a valve body (1) and a butterfly plate (3), wherein a flow cavity (101) is arranged on the valve body (1); a valve rod (4) is connected to the butterfly plate (3); the butterfly plate (3) is positioned in the flow cavity (101); the upper end of the valve rod (4) is connected with a worm gear case (5) on the valve body (1); the bottom of the valve rod (4) is connected with the bottom of the flow cavity (101); the valve rod (4) can rotate relative to the valve body (1), and the worm gear case (5) drives the valve rod (4) to rotate, so as to drive the butterfly plate (3) to rotate to realize the opening and closing of the flow cavity (101); a telescopic pipe (9) is arranged in one side of the flow cavity (101); an adjusting limiting screw (7) is connected to the valve body (1) through a nut, and the adjusting limiting screw (7) is connected with the telescopic pipe (9); a valve sealing ring (2) is connected in the valve body (1) through an adjusting screw (6); the valve sealing ring (2) is connected with or separated from the butterfly plate (3);
the telescopic pipe (9) is connected to the valve body (1) through a pressing ring (12); an inclined plane is arranged on the inner end surface of the pressing ring (12), and an included angle (alpha) is formed between the inclined plane and the horizontal plane;
a connecting boss (102) is arranged in the valve body (1), and the connecting boss (102) is positioned in the flow cavity (101); the outer wall of the telescopic pipe (9) is attached to the connecting boss (102); a gap (delta) is formed between the outer surface of the telescopic pipe (9) and the bottom of the flow cavity (101).
2. The flexible rotary tube butterfly valve of claim 1, wherein: an axial O-shaped ring (8) is arranged between the pressing ring (12) and the valve body (1).
3. The flexible rotary tube butterfly valve of claim 1, wherein: a radial O-shaped ring (11) is arranged between the connecting boss (102) and the connecting part of the telescopic pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710795381.0A CN107620802B (en) | 2017-09-06 | 2017-09-06 | Flexible rotary pipe telescopic butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710795381.0A CN107620802B (en) | 2017-09-06 | 2017-09-06 | Flexible rotary pipe telescopic butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107620802A CN107620802A (en) | 2018-01-23 |
| CN107620802B true CN107620802B (en) | 2023-08-08 |
Family
ID=61089309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710795381.0A Active CN107620802B (en) | 2017-09-06 | 2017-09-06 | Flexible rotary pipe telescopic butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107620802B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282053A (en) * | 2018-11-30 | 2019-01-29 | 博纳斯威阀门股份有限公司 | Eccentric half-ball valve with Telescopic |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2129844Y (en) * | 1992-07-15 | 1993-04-14 | 邹声武 | Ball type butlerfly valve |
| JP2002106738A (en) * | 2000-09-28 | 2002-04-10 | Kubota Corp | Valve with expandable joining part |
| CN2890526Y (en) * | 2006-01-13 | 2007-04-18 | 章祖翼 | Limit telescopic butterfly valve |
| CN103574075A (en) * | 2013-11-20 | 2014-02-12 | 天津市卡尔斯阀门有限公司 | Soft seal telescopic butterfly valve |
| CN205101573U (en) * | 2015-10-26 | 2016-03-23 | 四川川力智能阀业有限公司 | Butterfly plate area three -section circular arc seals one end flange telescopic butterfly valve |
-
2017
- 2017-09-06 CN CN201710795381.0A patent/CN107620802B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2129844Y (en) * | 1992-07-15 | 1993-04-14 | 邹声武 | Ball type butlerfly valve |
| JP2002106738A (en) * | 2000-09-28 | 2002-04-10 | Kubota Corp | Valve with expandable joining part |
| CN2890526Y (en) * | 2006-01-13 | 2007-04-18 | 章祖翼 | Limit telescopic butterfly valve |
| CN103574075A (en) * | 2013-11-20 | 2014-02-12 | 天津市卡尔斯阀门有限公司 | Soft seal telescopic butterfly valve |
| CN205101573U (en) * | 2015-10-26 | 2016-03-23 | 四川川力智能阀业有限公司 | Butterfly plate area three -section circular arc seals one end flange telescopic butterfly valve |
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| Publication number | Publication date |
|---|---|
| CN107620802A (en) | 2018-01-23 |
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