CN106439077B - A kind of ball-type ultra-low torque plug valve - Google Patents
A kind of ball-type ultra-low torque plug valve Download PDFInfo
- Publication number
- CN106439077B CN106439077B CN201610931316.1A CN201610931316A CN106439077B CN 106439077 B CN106439077 B CN 106439077B CN 201610931316 A CN201610931316 A CN 201610931316A CN 106439077 B CN106439077 B CN 106439077B
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- China
- Prior art keywords
- ball
- cock
- hole
- valve
- slope
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0442—Spindles and actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Abstract
The present invention provides a kind of ball-type ultra-low torque plug valve, can greatly mitigate the opening and closing torque of plug valve.Runner hole is provided in valve body, cock is mounted in valve body, for opening and closing runner hole；Bushing is fixed on the hole wall in runner hole；Bush hole is provided in bushing, cock is pressed into bush hole；Valve deck is fixed on valve body, and cock is rotatably installed on valve deck；Slope is provided on valve deck, slope gradually rises along the opening direction of cock；Ball retainer is fixedly set in cock；Gland is fixedly set in cock, and ball retainer is fixed in cock by gland；Ball is movably arranged on ball retainer, and ball retainer constrains ball on the pivot center direction of cock and rotation direction so that ball is limited on the pivot center direction of cock and rotation direction and is moved together with ball retainer；It places on the slope the bottom of ball；Clamp nut and cock are connected through a screw thread, and ball retainer is pushed down in the lower face of clamp nut.
Description
Technical field
The present invention relates to a kind of ball-type ultra-low torque plug valves.
Background technology
Plug valve is closure member or the rotary valve of plunger shape, by being rotated by 90 ° on the passway and valve body that make on valve plug
Passway communicates or separates, and realizes a kind of valve being turned on and off, such as application No. is 201310123433.1 Chinese patents.
The structure of current plug valve drives the rotation of cock with rotatable handle.Plug valve is realized that sealing is mainly squeezed by cock and is served as a contrast
Set deforms to realize sealing, since the circularity of cock can not accomplish that the circularity with bushing fits like a glove, so valve is real
It now seals, it is necessary to be that sealing is realized to compress bushing deformation by cock.The sealing pair contact area of plug valve is often
Approximate ellipsoidal, contact area is much bigger compared with the circle of ball valve, therefore the torque of plug valve is all very big.In relevant criterion
Upper regulation（API599）, 4 cun（Contain）The above plug valve is required for matching retarder, causes the cost of plug valve high, this
It is the reason for restricting plug valve and using.
Invention content
It is an object of the invention to overcome above-mentioned deficiency existing in the prior art, and provide a kind of reasonable in design
Ball-type ultra-low torque plug valve can greatly mitigate the opening and closing torque of plug valve.
Technical solution is used by the present invention solves the above problems：A kind of ball-type ultra-low torque plug valve, including valve
Body, cock, bushing and valve deck；Runner hole is provided in valve body, cock is mounted in valve body, for opening and closing runner hole；Lining
Set is fixed on the hole wall in runner hole；Bush hole is provided in bushing, cock is pressed into bush hole；Valve deck is fixed on valve body, rotation
Plug is rotatably installed on valve deck；It is characterized in that：Slope is provided on valve deck, slope gradually rises along the opening direction of cock；Also
Including clamp nut, ball retainer, gland and ball；Ball retainer is fixedly set in cock；Gland is fixedly set in
In cock, ball retainer is fixed in cock by gland；Ball is movably arranged on ball retainer, and ball retainer is revolving
Ball is constrained in the pivot center direction of plug and rotation direction so that ball is in the pivot center direction of cock and rotation direction
On be limited and moved together with ball retainer；It places on the slope the bottom of ball；Clamp nut and cock pass through screw thread
Connection, ball retainer is pushed down in the lower face of clamp nut.
Plane is provided on valve deck of the present invention, top and the plane on slope connect together.
Limit hole is provided in ball retainer of the present invention, ball is movably arranged in limit hole；The shape of limit hole
Shape is matched with the shape of ball, and the orifice diameter at limit hole both ends is less than the diameter of ball.
Ball of the present invention is more, and the pivot center around cock is arranged.
Slope of the present invention is multiple, and the pivot center around cock is arranged.
Compared with prior art, the present invention haing the following advantages and effect：The present invention cleverly utilizes force of rolling friction remote
Much smaller than the principle of force of sliding friction, using the structure type of ball friction, the characteristics of using valve deck itself, one section is designed tiltedly
Slope allows torque when rotation to maintain state that is one smaller and stablizing, and when ball covers this section of slope, cock and bushing are
It disengages, torque is begun to decline to a very low level.By this small lift structure principle, can greatly subtract
The opening and closing torque of light plug valve.
Description of the drawings
Fig. 1 is the schematic cross-sectional view of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram that valve deck of the embodiment of the present invention is faced.
Fig. 3 is the schematic cross-sectional view of valve deck side view of the embodiment of the present invention.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited in following embodiments.
Referring to Fig. 1~Fig. 3, the present embodiment includes valve body 1, cock 2, bushing 3, clamp nut 4, ball retainer 5, gland
6, valve deck 7 and ball 8.
Runner hole is provided in valve body 1, cock 2 is mounted in valve body 1, for opening and closing runner hole.
Bushing 3 is fixed on the hole wall in runner hole.Bush hole is provided in bushing 3, cock 2 is pressed into bush hole, passes through lining
The flexible deformation of set 3 ensures cock 2 when closed, and valve may be implemented to seal.
Valve deck 7 is fixed on valve body 1, and cock 2 is rotatably installed on valve deck 7.Slope 9, slope are provided on the capping of valve deck 7
9 gradually rise along the opening direction of cock 2.Plane 10 is provided on the capping of valve deck 7, top and the plane 10 on slope 9 are connected in one
It rises, when ball 8 is covered, plane 10 is just gone on behind slope 9, the effect of plane 10 is will not be always when ball 8 can be made to move
Rise, prevent 2 displacement of cock excessive, after ball 8 is moved to plane 10, cock 2 and bushing 3 have been detached from, cock 2 need not again on
It rises.Slope 9 is multiple, and around the pivot center setting of cock 2, such stress is average.
Ball retainer 5 is fixedly set in cock 2.
Gland 6 is fixedly set in cock 2, and positioned at 5 outside of ball retainer, and gland 6 is kept ball by bolt
Frame 5 is fixed in cock 2.
Ball 8 is movably arranged on ball retainer 5, and ball retainer 5 is in the pivot center direction of cock 2 and rotation side
Ball 8 is constrained upwards so that ball 8 is limited on the pivot center direction of cock 2 and rotation direction and is kept with ball
Frame 5 moves together.Limit hole is provided in ball retainer 5, ball 8 is movably arranged in limit hole, the shape of limit hole and rolling
The shape of pearl 8 matches, and the orifice diameter at limit hole both ends is less than the diameter of ball 8, thus can be in the pivot center of cock 2
Ball 8 is constrained on direction and rotation direction.Ball 8 is more, and around the pivot center setting of cock 2, such stress is more flat
?.
The bottom of ball 8 is placed on slope 9.
Clamp nut 4 and cock are connected through a screw thread, and ball retainer 5, and then lower press rolls are pushed down in 4 lower face of clamp nut
Pearl 8 so that the bottom of ball 8 is tightly placed on slope 9.
When opening, cock 2 is rotated along the opening direction of cock 2, cock 2 drives ball retainer 5 to rotate, ball retainer
5 drive ball 8 to rotate, and ball 8 moves rising along slope 9, to which ball 8 drives ball retainer 5 to rise, ball retainer
5 drive cock 2 to rise in turn, and since bushing 3 is fixed, cock 2 and bushing 3 start to be detached from.When to cover this section oblique for ball 8
When slope 9, cock 2 and bushing 3 have been detached from, and are clearance fits between cock at this time 2 and bushing 3.Again when rotational handle, torque
It than before can be gently very much.When closing, the above process is in turn.By this structure, bushing 3 and cock 2 is allowed to disengage to reach
To the purpose for mitigating plug valve opening and closing torque.
Described in this specification above content is only to structure of the invention example explanation；Moreover, this hair
The title that bright each section is taken can also be different, what all structure, feature and principles according to described in inventional idea of the present invention were done etc.
Effect or simple change, are included in the scope of protection of the invention patent.
Claims (5)
1. a kind of ball-type ultra-low torque plug valve, including valve body, cock, bushing and valve deck；Runner hole, cock are provided in valve body
In valve body, for opening and closing runner hole；Bushing is fixed on the hole wall in runner hole；Bush hole is provided in bushing,
Cock is pressed into bush hole；Valve deck is fixed on valve body, and cock is rotatably installed on valve deck；It is characterized in that：It is provided on valve deck
Slope, slope gradually rise along the opening direction of cock；Further include clamp nut, ball retainer, gland and ball；Ball is protected
Frame is held to be fixedly set in cock；Gland is fixedly set in cock, and ball retainer is fixed in cock by gland；Ball is lived
Dynamic to be mounted on ball retainer, ball retainer constrains ball on the pivot center direction of cock and rotation direction, makes
Ball is obtained to be limited on the pivot center direction of cock and rotation direction and move together with ball retainer；The bottom of ball
It places on the slope；Clamp nut and cock are connected through a screw thread, and ball retainer is pushed down in the lower face of clamp nut.
2. ball-type ultra-low torque plug valve according to claim 1, it is characterised in that：It is provided on the valve deck flat
Face, top and the plane on slope connect together.
3. ball-type ultra-low torque plug valve according to claim 1, it is characterised in that：It is opened in the ball retainer
There are limit hole, ball to be movably arranged in limit hole；The shape of limit hole is matched with the shape of ball, and the hole at limit hole both ends
Mouth diameter is less than the diameter of ball.
4. ball-type ultra-low torque plug valve according to claim 1, it is characterised in that：The ball is more, ring
Pivot center around cock is arranged.
5. ball-type ultra-low torque plug valve according to claim 1, it is characterised in that：The slope is multiple, ring
Pivot center around cock is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610931316.1A CN106439077B (en) | 2016-10-31 | 2016-10-31 | A kind of ball-type ultra-low torque plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610931316.1A CN106439077B (en) | 2016-10-31 | 2016-10-31 | A kind of ball-type ultra-low torque plug valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106439077A CN106439077A (en) | 2017-02-22 |
| CN106439077B true CN106439077B (en) | 2018-11-06 |
Family
ID=58177524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610931316.1A Active CN106439077B (en) | 2016-10-31 | 2016-10-31 | A kind of ball-type ultra-low torque plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106439077B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262141Y (en) * | 1996-06-27 | 1997-09-10 | 石油勘探开发科学研究院机械研究所 | Low open and close torque high temperature high pressure plunger type valve |
| CN2278815Y (en) * | 1996-09-16 | 1998-04-15 | 孟永康 | High-temp. - and high-pressure-resistant whole hard seal ball valve |
| JP2000337550A (en) * | 1999-05-26 | 2000-12-05 | Osaka Kiki Seizo Kk | Valve device |
| CN2503280Y (en) * | 2001-10-11 | 2002-07-31 | 宁波忻杰燃气用具实业有限公司 | Ultra-low torque ball valve (3) |
| CN201322106Y (en) * | 2008-12-12 | 2009-10-07 | 彭国军 | Labor-saving high-sealing plug valve |
| CN203948686U (en) * | 2014-07-18 | 2014-11-19 | 凯喜姆阀门有限公司 | Low moment of torsion stopcock |
| CN204784826U (en) * | 2015-07-22 | 2015-11-18 | 雷蒙德(北京)科技股份有限公司 | Inclined plane ball valve |
-
2016
- 2016-10-31 CN CN201610931316.1A patent/CN106439077B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262141Y (en) * | 1996-06-27 | 1997-09-10 | 石油勘探开发科学研究院机械研究所 | Low open and close torque high temperature high pressure plunger type valve |
| CN2278815Y (en) * | 1996-09-16 | 1998-04-15 | 孟永康 | High-temp. - and high-pressure-resistant whole hard seal ball valve |
| JP2000337550A (en) * | 1999-05-26 | 2000-12-05 | Osaka Kiki Seizo Kk | Valve device |
| CN2503280Y (en) * | 2001-10-11 | 2002-07-31 | 宁波忻杰燃气用具实业有限公司 | Ultra-low torque ball valve (3) |
| CN201322106Y (en) * | 2008-12-12 | 2009-10-07 | 彭国军 | Labor-saving high-sealing plug valve |
| CN203948686U (en) * | 2014-07-18 | 2014-11-19 | 凯喜姆阀门有限公司 | Low moment of torsion stopcock |
| CN204784826U (en) * | 2015-07-22 | 2015-11-18 | 雷蒙德(北京)科技股份有限公司 | Inclined plane ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106439077A (en) | 2017-02-22 |
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