CN204300390U - A kind of less trouble three eccentric butterfly valve - Google Patents
A kind of less trouble three eccentric butterfly valve Download PDFInfo
- Publication number
- CN204300390U CN204300390U CN201420709452.2U CN201420709452U CN204300390U CN 204300390 U CN204300390 U CN 204300390U CN 201420709452 U CN201420709452 U CN 201420709452U CN 204300390 U CN204300390 U CN 204300390U
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- pin
- valve
- valve rod
- plate
- mounting hole
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Abstract
A kind of less trouble three eccentric butterfly valve, comprise valve body, valve plate and the first valve rod and the second valve rod, valve plate is located in valve body by two valve rods, two valve rod fitting seats with valve rod mounting hole are provided with in the side of valve plate, two valve rods are located in two valve rod mounting holes respectively, the columniform pin be arranged in parallel respectively by two between each root valve rod and corresponding valve rod fitting seat is fixedly connected with, axis and the corresponding valve rod of pin are perpendicular, and parallel with valve plate, pin is provided with the mounting plane with pin axis with tilt angle, corresponding valve rod fitting seat is provided with two pin mounting holes, position corresponding to pin on corresponding valve rod is provided with the mountion plate matched with mounting plane, tapped hole is provided with at the small end of pin, Dogbolt is provided with in tapped hole.The utility model can prevent pin from exiting, and can eliminate hole shaft clearance, and reduce orifice axle rubs, and extends the working life of valve.
Description
Technical field
The utility model relates to a kind of butterfly valve of pipeline, especially a kind of less trouble three eccentric butterfly valve.
Background technique
Butterfly valve is as opening or the valve of medium of closing duct and equipment, and play a part to regulate and dam in pipeline and equipment, at oil, rock gas, the fields such as chemical industry have a wide range of applications.Butterfly valve more advanced in prior art is three eccentric butterfly valve, and valve body and valve seat are disjunctor component, valve seat sealing surface layer built-up welding heatproof, corrosion resistant alloy material, and the soft stacked seal ring of multilayer is fixed on valve plate.
As shown in Figure 1, because the eccentric A of a biased size between valve rod axis and sealing surface of valve plate, and and a size bias is biased between valve channel
b, valve seat rotational axis and valve channel axis form the eccentric C of an eccentric angle, therefore form three eccentricity.Butterfly valve is when opening for 0 °-90 °, sealing surface of valve plate can depart from sealing surface of seat immediately in the moment of opening, when closing for 90 °-0 °, the moment of only closing, its valve plate conical sealing face just can contact and compress the sealing of valve seat taper shape, so between sealing surface on valve seat and valve plate without any friction, the possibility eliminating wearing and tearing and leak.
This butterfly valve also has high temperature resistant compared with traditional butterfly valve, operates light, comes compensation sealing, the sealability that improve butterfly valve and the advantage increased the service life during closedown along with the moment of driving mechanism increases.
But in the application of reality, in order to the convenience of repair demolition, valve rod and valve plate mounting hole normally Spielpassung, the while of then adopting pin and valve rod and valve plate, vertically disposed mode fixes and is connected valve rod and valve plate, such Placement, or be that tension not easily detachable maintaining installed by pin, be pin partially pine be in use easy to exit, thus causing following problem: sealing surface of valve plate can not depart from sealing surface of seat immediately in the moment of opening, but there is certain delay, butterfly valve also can not cut out due to the existence in this gap fast when cutting out, this not only causes the deviations in accuracy of open and close action, and cause further wearing and tearing between valve rod and mounting hole, thus reduce the working life of whole butterfly valve, the existence of hole shaft clearance also can cause aggressive medium in pipeline to the corrosion of valve rod and mounting hole in addition, when pin exits serious, even there is the phenomenon that valve plate can not normally be opened, thus bring hidden danger for safety in production.
Model utility content
In order to solve the problems of the technologies described above, the utility model provides a kind of less trouble three eccentric butterfly valve.
The utility model is in order to solve the problems of the technologies described above, and the technological scheme adopted is: a kind of less trouble three eccentric butterfly valve, comprise valve body, valve plate, first valve rod and the second valve rod, described valve plate is arranged in valve body rotationally by two valve rods, the sealing surface coordinated with valve body is circumferentially provided with at valve plate, it is characterized in that: be provided with the first valve rod fitting seat and the second valve rod fitting seat in the side of valve plate, the valve rod mounting hole passed through for corresponding valve rod is respectively equipped with in two valve rod fitting seats, and the center line of two valve rod mounting holes coincides, two described valve rods are located in two valve rod mounting holes respectively, first valve rod fitting seat with between the first valve rod and the second valve rod fitting seat be fixedly connected with the columniform pin be arranged in parallel respectively by two between the second valve rod, the axis of described pin and the axis perpendicular of corresponding valve rod, and parallel with valve plate, described pin is provided with the mounting plane of the axis with pin axis with tilt angle, corresponding valve rod fitting seat is provided with two pin mounting holes connected with corresponding valve rod mounting hole respectively, described pin mounting hole is through hole, described pin mounting hole center line and corresponding valve rod perpendicular, and parallel with valve plate, position corresponding to pin on corresponding valve rod is provided with the mountion plate matched with the mounting plane of pin, the tapped hole consistent with pin axial direction is provided with the crossing end of pin axis at the mounting plane of pin, pin is connected with a Dogbolt by tapped hole.
Further, the mounting plane of pin is arranged within pin mounting hole with the crossing end of pin axis, described pin mounting hole is provided with step at this end, described step is provided with pad, after described Dogbolt and the tapped hole of pin are connected, the large end of bolt is pressed on by pad on the step of pin mounting hole, and the other end of described pin is arranged on outside pin mounting hole.
Further, the degree of depth radially residing on corresponding valve rod of described mountion plate be the 0.15-0.20 of respective valve shank diameter doubly, the diameter of described pin be the 1.8-2.2 of the mountion plate degree of depth doubly.
Beneficial effect:
1, the utility model by valve rod milling mountion plate and in cylindrical pins milling mounting plane, and at mounting plane, tapped hole is set with the crossing end of cylindrical pins axis, a Dogbolt is connected by tapped hole, thus valve rod and valve plate are linked together securely, not only for ease of maintenaince dismounting, and ensure that pin can not exit from pin mounting hole, thus ensure that the reliability that valve uses, reduce the rate of fault of valve.
2, step is set in one end of pin mounting hole, and pad is set, after bolt and tapped hole are connected, the large end of bolt is pressed on pad, can make to adjust tighter and tighter between pin and valve rod by the effect that tightens of Dogbolt, while ensure that pin can not exit, also eliminate the gap between valve rod and valve rod mounting hole, thus the friction reduced between the axle of hole, and can prevent ducted Korrosionsmedium from entering space, cause the corrosion of hole axle, extend the working life of whole valve further, reduce the rate of fault of valve.
Accompanying drawing explanation
Fig. 1 is three eccentricity geometric representation.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is D-D view in Fig. 2.
Fig. 4 is pin feature figure.
Fig. 5 is the right elevation of Fig. 4.
In figure, the 1, second valve rod, 101, mountion plate, 2, pin, 201, mounting plane, 3, pad, 4, Dogbolt, 5, valve plate, the 501, first valve rod fitting seat, the 502, second valve rod fitting seat, 6, valve body, 7, sealing surface, 8, tapped hole, the 9, first valve rod.
Embodiment
Below in conjunction with the drawings and specific embodiments, concrete detailed description is further done to the utility model.
A kind of less trouble three eccentric butterfly valve, comprise valve body 6, valve plate 5, first valve rod 9 and the second valve rod 1, described valve plate 5 is arranged in valve body 6 by two valve rods rotationally, the sealing surface 7 coordinated with valve body 6 is circumferentially provided with at valve plate 5, the first valve rod fitting seat 501 and the second valve rod fitting seat 502 is provided with in the side of valve plate 5, the valve rod mounting hole passed through for corresponding valve rod is respectively equipped with in two valve rod fitting seats, and the center line of two valve rod mounting holes coincides, two described valve rods are located in two valve rod mounting holes respectively.
The columniform pin 2 be arranged in parallel respectively by two between first valve rod fitting seat 501 with the first valve rod 9 and between the second valve rod fitting seat 502 with the second valve rod 1 is fixedly connected with.
Its structural type is described below for the connection between the second valve rod fitting seat 502 and the second valve rod 1.
Described pin 2 axis and the second valve rod 1 perpendicular, parallel with valve plate 5, described pin 2 is provided with the mounting plane 201 with pin axis with the axis at tilt angle, second valve rod fitting seat 502 is provided with two pin mounting holes connected with the valve rod mounting hole of the second valve rod fitting seat 502 respectively, described pin mounting hole is through hole, described pin mounting hole center line and the second valve rod 1 perpendicular, and parallel with valve plate 5, on the second described valve rod 1, the position corresponding to pin 2 is provided with the mountion plate 101 matched with the mounting plane 201 of pin, the tapped hole 8 consistent with pin axial direction is provided with the crossing end of pin axis at the mounting plane 201 of pin 2, pin 2 is connected with a Dogbolt 4 by tapped hole 8.
The mounting plane 201 of pin is arranged within pin mounting hole with the crossing end of pin axis, and described pin mounting hole is provided with step at this end, and described step is provided with pad 3, and this pad can use plain cushion.
After described Dogbolt 4 and the tapped hole 8 of pin 2 are connected, the large end of bolt is pressed on by pad 3 on the step of pin mounting hole, and the other end of described pin 2 is arranged on outside pin mounting hole.
Because the mounting plane on pin 2 201 and pin 2 have tilt angle, thus make large one end, pin 2 one end little, small end (i.e. the mounting plane 201 of pin and the crossing end of pin axis) is provided with inner bolt hole 8, and be connected with Dogbolt 4, thus ensure that valve plate 5 and the second valve rod 1 are fixed together by pin 2 securely, and due to the stop of Dogbolt 4, pin 2 can not exit from pin mounting hole.
Owing to being coordinated by mounting plane 201 and mountion plate 101 between pin 2 with the second valve rod 1, thus limit the rotary motion of pin 2, further ensure the reliability connected between valve plate 5 and the second valve rod 1, and the frictional loss avoided because rotary motion brings and injury.
By screwing Dogbolt 4, can pin 2 be adjusted tighter and tighter, thus make valve rod mounting hole by the second valve rod 1 armful tighter, not only can eliminate the gap between the second valve rod 1 and valve rod mounting hole, reduce the friction between valve rod mounting hole and the second valve rod 1, and can prevent ducted Korrosionsmedium from entering gap, cause the corrosion of hole axle, extend the working life of whole valve further.
Can also ensure that the intensity of the second valve rod 1 is unaffected while being connected firmly with valve plate 5 at guarantee second valve rod 1, the degree of depth radially residing on the second valve rod 1 of described mountion plate 101 is preferably the 0.15-0.20 of the second valve rod 1 diameter doubly, and the diameter of described pin is preferably the 1.8-2.2 of mountion plate 101 degree of depth doubly.
The mode that is fixedly connected with between first valve rod fitting seat 501 and the first valve rod 9 is identical with the Placement between the second valve rod fitting seat 502 and the second valve rod 1, no longer describes in detail herein.
Claims (3)
1. a less trouble three eccentric butterfly valve, comprise valve body (6), valve plate (5), first valve rod (9) and the second valve rod (1), described valve plate (5) is arranged in valve body (6) by two valve rods rotationally, the sealing surface (7) coordinated with valve body (6) is circumferentially provided with at valve plate (5), it is characterized in that: be provided with the first valve rod fitting seat (501) and the second valve rod fitting seat (502) in the side of valve plate (5), the valve rod mounting hole passed through for corresponding valve rod is respectively equipped with in two valve rod fitting seats, and the center line of two valve rod mounting holes coincides, two described valve rods are located in two valve rod mounting holes respectively, first valve rod fitting seat (501) with between the first valve rod (9) and the second valve rod fitting seat (502) be fixedly connected with the columniform pin (2) be arranged in parallel respectively by two between the second valve rod (1), the described axis of pin (2) and the axis perpendicular of corresponding valve rod, and parallel with valve plate (5), described pin (2) is provided with the mounting plane (201) with pin axis with the axis at tilt angle, corresponding valve rod fitting seat is provided with two pin mounting holes connected with corresponding valve rod mounting hole respectively, described pin mounting hole is through hole, described pin mounting hole center line is perpendicular with corresponding valve rod and parallel with valve plate (5), on corresponding valve rod, position corresponding with pin (2) is provided with the mountion plate (101) matched with the mounting plane of pin (201), mounting plane (201) in pin (2) and the crossing end of pin axis are provided with the tapped hole (8) consistent with pin axial direction, pin (2) is connected with a Dogbolt (4) by tapped hole (8).
2. a kind of less trouble three eccentric butterfly valve according to claim 1, it is characterized in that: the mounting plane (201) of pin is arranged within pin mounting hole with the crossing end of pin axis, described pin mounting hole is provided with step at this end, described step is provided with pad (3), after described Dogbolt (4) and the tapped hole (8) of pin (2) are connected, the large end of bolt is pressed on the step of pin mounting hole by pad (3), and the other end of described pin (2) is arranged on outside pin mounting hole.
3. a kind of less trouble three eccentric butterfly valve according to claim 2, it is characterized in that: the degree of depth radially residing on corresponding valve rod of described mountion plate (101) be the 0.15-0.20 of respective valve shank diameter doubly, the diameter of described pin (2) be the 1.8-2.2 of the mountion plate degree of depth doubly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709452.2U CN204300390U (en) | 2014-11-24 | 2014-11-24 | A kind of less trouble three eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709452.2U CN204300390U (en) | 2014-11-24 | 2014-11-24 | A kind of less trouble three eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300390U true CN204300390U (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420709452.2U Expired - Fee Related CN204300390U (en) | 2014-11-24 | 2014-11-24 | A kind of less trouble three eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204300390U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420561A (en) * | 2017-09-27 | 2017-12-01 | 济南迈克阀门科技有限公司 | A kind of self sealss eccentric-butterfly-valve |
| CN109723870A (en) * | 2019-03-04 | 2019-05-07 | 浙江欧科阀门有限公司 | A kind of Novel swing check valve |
-
2014
- 2014-11-24 CN CN201420709452.2U patent/CN204300390U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420561A (en) * | 2017-09-27 | 2017-12-01 | 济南迈克阀门科技有限公司 | A kind of self sealss eccentric-butterfly-valve |
| CN109723870A (en) * | 2019-03-04 | 2019-05-07 | 浙江欧科阀门有限公司 | A kind of Novel swing check valve |
| CN109723870B (en) * | 2019-03-04 | 2024-04-16 | 浙江欧科阀门有限公司 | Novel swing check 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: 20150429 Termination date: 20211124 |