CN101929557A - Rail regulation cut-off ball valve - Google Patents
Rail regulation cut-off ball valve Download PDFInfo
- Publication number
- CN101929557A CN101929557A CN 201010271735 CN201010271735A CN101929557A CN 101929557 A CN101929557 A CN 101929557A CN 201010271735 CN201010271735 CN 201010271735 CN 201010271735 A CN201010271735 A CN 201010271735A CN 101929557 A CN101929557 A CN 101929557A
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- valve
- spheroid
- valve rod
- ball
- valve body
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Abstract
The invention provides a rail regulation cut-off ball valve which comprises a thin-film actuating mechanism, a valve rod, a ball body and a valve body, wherein the valve body is provided with a straight through hole flow channel one end of which is a liquid inlet and the other end of which is a liquid outlet; the ball body is arranged in the middle part of the straight through hole flow channel of the valve body; a valve seat is arrange at an inner side of the liquid outlet; a supporting sleeve for the valve body is arranged on a contact surface between the bottom of the ball body and the valve body; and one end of the valve rod is inserted into the ball body and the other end of the valve rod is connected with the thin-film actuating mechanism. The rail regulation cut-off ball valve has the following beneficial technical effects that sealing pressure is large, thus achieving tight seal between a sealing surface of the ball body and the valve seat; no friction occurs between the sealing surface of the ball body and the valve seat; and an oblique plane of a pin column of the ball body has a self-locking function, thus being capable of keeping not loose and unchanged.
Description
Technical field
The present invention relates to a kind of cut-out ball valve, relate in particular to a kind of rail regulation cut-off ball valve.
Background technique
At present, use on the market more widely ball valve O type ball valve and cam are arranged around two kinds on curve valve (eccentric ball valve):
No matter conventional O type ball valve is floating type or fixed, and spheroid contacts all the time, rubs with valve seat, causes that switching torque is big, sealing surface damages (wearing and tearing) etc. easily, causes valve reduction in working life; And, cause valve seat and sphere locking easily and cisco unity malfunction in hot environment.In addition, this valve is not because the restriction of structure possesses regulatory function.
Eccentric ball valve by changing rotating center and sphere centre position, has effectively been avoided the friction of valve seat and sphere in the opening-closing process; The trace of dependence valve seat floats and eliminates the part processing foozle, further improve the leakage class of valve, but still there are following 2 deficiencys: first, owing to sealed the influence of radius, the positive pressure that the output torque of actuator forms between spheroid and sealing surface of seat is lower, seal pressure is less, meets the demands when leakage class requires to have only when high by increasing the actuator stem force square; The second, be not suitable for High Pressure Difference and cut off; At first be because in the High Pressure Difference occasion, required seal pressure height between spheroid and the sealing surface of seat, difficulty is selected by actuator; Next is that the rigidity deficiency when pressure medium acts on the valve rod by spheroid, easily produces bending deflection, influences spherome surface and contacts with the effective of sealing surface of seat, causes leakage class to reduce because of valve rod size-constrained (cross conference and influence negotiability).
Summary of the invention
For solving low, problem such as leakage class is low in the working life that existing ball valve technology exists, the present invention proposes a kind of rail regulation cut-off ball valve.Rail regulation cut-off ball valve of the present invention comprises: diaphragm actuator, valve rod, spheroid and valve body, valve body are provided with a clear opening runner, and an end is a liquid entering hole, and an end is a liquid outlet; Spheroid is arranged on the middle part of valve body straight through hole flow channel; The inboard of liquid outlet is provided with valve seat; The spheroid bottom is provided with the valve body supporting sleeve with the surface of contact of valve body; One end of valve rod inserts in the spheroid, and the other end connects diaphragm actuator.
Valve rod is provided with " S " type spiral chute, has a pilot pin to be inserted in " S " type spiral chute on the valve body.
The section surface that valve rod inserts spheroid is provided with two planes that are symmetrical in the valve rod central axis, equally, on the spheroid inwall in hole also be provided with valve rod on pairing two planes, plane, the plane of plane that is provided with on the valve rod and the inwall setting of spheroid hole closely cooperates and can move axially; More than the plane that is provided with on the valve rod, also have one section axis to be the inclined-plane of clockwise angle with valve rod (3).
Spheroid is provided with the sealing sphere and runs through the through hole runner, and its cross section of running through the through hole runner is semicircle and leg-of-mutton combination, and a leg-of-mutton limit overlaps with the diameter limit of semicircle.
The useful technique effect of rail regulation cut-off ball valve of the present invention is: sealing load is big, and ball seal face and valve seat are realized tight envelope; Ball seal face and valve seat do not produce friction; Spheroid pin inclined-plane has self-locking action, guarantees not loosening the variation.
Description of drawings
Fig. 1 is the elevational cross-sectional view of rail regulation cut-off ball valve of the present invention.
Fig. 2 is the front view of the valve rod of rail regulation cut-off ball valve of the present invention.
Fig. 3 is the valve rod of rail regulation cut-off ball valve of the present invention and the schematic cross-section of spheroid contact segment.
Fig. 4 launches schematic representation for the spiral fluted on the valve rod of rail regulation cut-off ball valve of the present invention.
Fig. 5 is the sectional view of the spheroid of rail regulation cut-off ball valve of the present invention.
Fig. 6 is the plan view of the spheroid of rail regulation cut-off ball valve of the present invention shown in Figure 5.
Below in conjunction with the drawings and specific embodiments rail regulation cut-off ball valve of the present invention is further described.
Embodiment
Fig. 1 is the elevational cross-sectional view of rail regulation cut-off ball valve of the present invention, and among the figure, 1 is valve seat, and 3 is valve rod, and 5 is that diaphragm actuator, 6 is that pilot pin, 7 is that spheroid, 8 is the valve body supporting sleeve, and 9 is valve body.As seen from the figure, rail regulation cut-off ball valve of the present invention comprises: diaphragm actuator 5, valve rod 3, spheroid 7 and valve body 9, valve body 9 are provided with a clear opening runner, and an end is a liquid entering hole, and an end is a liquid outlet; Spheroid 7 is arranged on the middle part of valve body 9 straight through hole flow channel; The inboard of liquid outlet is provided with valve seat 1; The surface of contact of spheroid 7 bottoms and valve body 9 is provided with valve body supporting sleeve 8; One end of valve rod 3 is inserted in the spheroid 7, and the other end connects diaphragm actuator 5.
Fig. 2 is the front view of the valve rod of rail regulation cut-off ball valve of the present invention, Fig. 4 launches schematic representation for the spiral fluted on the valve rod of rail regulation cut-off ball valve of the present invention, as seen from the figure, valve rod 3 is provided with " S " type spiral chute, 1 also as can be known in conjunction with the accompanying drawings, has a pilot pin 6 to be inserted in " S " type spiral chute on the valve body 9.
Fig. 3 is the valve rod of rail regulation cut-off ball valve of the present invention and the schematic cross-section of spheroid contact segment, and Fig. 6 is the plan view of the spheroid of rail regulation cut-off ball valve of the present invention shown in Figure 5.As seen from the figure, the section surface that valve rod 3 is inserted in spheroid 7 is provided with two planes that are symmetrical in valve rod 3 central axis, equally, on the spheroid 7 inwall in hole also be provided with valve rod 3 on pairing two planes, plane, the plane that is provided with on the valve rod 3 closely cooperates with the plane of spheroid 7 hole inwall settings and also can move axially.2 also as can be known in conjunction with the accompanying drawings, also has one section axis to be the inclined-plane post of clockwise angle more than the plane that is provided with on the valve rod 3.
Fig. 5 is the sectional view of the spheroid of rail regulation cut-off ball valve of the present invention, as seen from the figure, be provided with the sealing sphere in the spheroid 7 and run through the through hole runner, its cross section of running through the through hole runner is semicircle and leg-of-mutton combination, and a leg-of-mutton limit overlaps with the diameter limit of semicircle.
Rail regulation cut-off ball valve of the present invention is when closing liquid stream, diaphragm actuator 5 extruding valve rods 3 downward straight line motions, because " S " type spiral fluted is provided with, and the acting in conjunction of inserting the pilot pin 6 in " S " type spiral chute on the valve rod 3 on the valve body 9, valve rod 3 straight-line downwards simultaneously also can be along the axis rotation of self, because valve rod 3 is two planes with the surface of contact of spheroid 7, the plane that is provided with on the valve rod 3 and the plane of spheroid 7 hole inwall settings closely cooperate and can move axially, therefore, driving spheroid 7 when valve rod 3 rotatablely moves rotatablely moves, when valve rod 3 rotatablely moves to track terminal, spheroid 7 also rotates to the position of ball sealer in the face of the valve seat 1 on the accurate liquid outlet, the sealing sphere of spheroid 7 at this moment still has certain slit with valve seat 1, valve rod 3 continues to move downward, and the inclined-plane on the valve rod 3 promotes spheroid 7 to the right, makes sealing sphere being attached on the valve seat 1 tightly of spheroid 7, form sealing, thereby cut off liquid stream.
Rail regulation cut-off ball valve of the present invention is when opening liquid stream, diaphragm actuator 5 drives upwards straight line motion of valve rod 3, because the inclined-plane on the valve rod 3 promotes spheroid 7 left, makes the sealing sphere of spheroid 7 lift off a seat 1, make the sealing sphere of spheroid 7 and valve seat 1 produce the slit; Along with, valve rod 3 continues upwards straight line motion, because " S " type spiral fluted is provided with, and the acting in conjunction of inserting the pilot pin 6 in " S " type spiral chute on the valve rod 3 on the valve body 9, valve rod 3 make progress straight-line simultaneously also can be along the axis rotation of self, because valve rod 3 is two planes with the surface of contact of spheroid 7, the plane that is provided with on the valve rod 3 and the plane of spheroid 7 hole inwall settings closely cooperate and can move axially, therefore, driving spheroid 7 when valve rod 3 rotatablely moves rotatablely moves, when valve rod 3 rotatablely moves to another of track when terminal, spheroid 7 also rotates to and runs through the position that the through hole runner is aimed at liquid entering hole and liquid outlet, form liquid chunnel, thereby open liquid stream.
Claims (4)
1. a rail regulation cut-off ball valve comprises diaphragm actuator (5), valve rod (3), spheroid (7) and valve body (9), and it is characterized in that: valve body (9) is provided with a clear opening runner, and an end is a liquid entering hole, and an end is a liquid outlet; Spheroid (7) is arranged on the middle part of valve body (9) straight through hole flow channel; The inboard of liquid outlet is provided with valve seat (1); Spheroid (7) bottom is provided with valve body supporting sleeve (8) with the surface of contact of valve body (9); One end of valve rod (3) inserts in the spheroid (7), and the other end connects diaphragm actuator (5).
2. rail regulation cut-off ball valve according to claim 1 is characterized in that: valve rod (3) is provided with " S " type spiral chute, has a pilot pin (6) to insert in " S " type spiral chute on the valve body (9).
3. rail regulation cut-off ball valve according to claim 1, it is characterized in that: the section surface that valve rod (3) inserts spheroid (7) is provided with two planes that are symmetrical in valve rod (3) central axis, equally, the inwall that spheroid (7) is gone up the hole also be provided with valve rod (3) on pairing two planes, plane, the plane that valve rod (3) is gone up the plane that is provided with and spheroid (7) hole inwall setting closely cooperates and also can move axially; More than the plane that valve rod (3) upward is provided with, also have one section axis to be the inclined-plane of clockwise angle with valve rod (3).
4. rail regulation cut-off ball valve according to claim 1, it is characterized in that: spheroid (7) is provided with the sealing sphere and runs through the through hole runner, its cross section of running through the through hole runner is semicircle and leg-of-mutton combination, and a leg-of-mutton limit overlaps with the diameter limit of semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010271735 CN101929557A (en) | 2010-09-03 | 2010-09-03 | Rail regulation cut-off ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010271735 CN101929557A (en) | 2010-09-03 | 2010-09-03 | Rail regulation cut-off ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101929557A true CN101929557A (en) | 2010-12-29 |
Family
ID=43368896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010271735 Pending CN101929557A (en) | 2010-09-03 | 2010-09-03 | Rail regulation cut-off ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101929557A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927306A (en) * | 2011-04-07 | 2013-02-13 | 丛爱国 | Pressure container valve capable of being automatically locked |
| CN103511656A (en) * | 2013-09-26 | 2014-01-15 | 岳廷 | Segmentation valve rod type friction-free ball valve |
| CN105179732A (en) * | 2015-09-30 | 2015-12-23 | 黄建斌 | Adjusting ball valve |
| CN112576777A (en) * | 2020-12-18 | 2021-03-30 | 玖隆阀门有限公司 | Novel pneumatic ball valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221138Y (en) * | 1995-03-29 | 1996-02-28 | 裴守智 | Sealing ball valve with translational rotary single seat |
| CN2234026Y (en) * | 1995-06-23 | 1996-08-28 | 浙江长城公贸公司 | Ball valve for industrial conveying pipeline |
| CN2276098Y (en) * | 1996-10-07 | 1998-03-11 | 机械工业部第七设计研究院 | Regulating valve |
| CN2355176Y (en) * | 1998-12-26 | 1999-12-22 | 张桥 | Frictionfree twin core ball valve |
| CN2375829Y (en) * | 1999-06-01 | 2000-04-26 | 杨永祥 | Ball valve |
| CN1355390A (en) * | 2000-11-28 | 2002-06-26 | 温州市瓯斯特阀门有限公司 | Dual-sealing ball valve with moving core |
| CN201763996U (en) * | 2010-09-03 | 2011-03-16 | 重庆川武仪表有限公司 | Rail type adjusting cut-off ball valve |
-
2010
- 2010-09-03 CN CN 201010271735 patent/CN101929557A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221138Y (en) * | 1995-03-29 | 1996-02-28 | 裴守智 | Sealing ball valve with translational rotary single seat |
| CN2234026Y (en) * | 1995-06-23 | 1996-08-28 | 浙江长城公贸公司 | Ball valve for industrial conveying pipeline |
| CN2276098Y (en) * | 1996-10-07 | 1998-03-11 | 机械工业部第七设计研究院 | Regulating valve |
| CN2355176Y (en) * | 1998-12-26 | 1999-12-22 | 张桥 | Frictionfree twin core ball valve |
| CN2375829Y (en) * | 1999-06-01 | 2000-04-26 | 杨永祥 | Ball valve |
| CN1355390A (en) * | 2000-11-28 | 2002-06-26 | 温州市瓯斯特阀门有限公司 | Dual-sealing ball valve with moving core |
| CN201763996U (en) * | 2010-09-03 | 2011-03-16 | 重庆川武仪表有限公司 | Rail type adjusting cut-off ball valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927306A (en) * | 2011-04-07 | 2013-02-13 | 丛爱国 | Pressure container valve capable of being automatically locked |
| CN103511656A (en) * | 2013-09-26 | 2014-01-15 | 岳廷 | Segmentation valve rod type friction-free ball valve |
| CN103511656B (en) * | 2013-09-26 | 2015-10-28 | 岳廷 | Segmentation valve rod type friction-free ball valve |
| CN105179732A (en) * | 2015-09-30 | 2015-12-23 | 黄建斌 | Adjusting ball valve |
| CN112576777A (en) * | 2020-12-18 | 2021-03-30 | 玖隆阀门有限公司 | Novel pneumatic ball valve |
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Application publication date: 20101229 |