CN203717966U - Novel four-eccentric butterfly valve structure - Google Patents
Novel four-eccentric butterfly valve structure Download PDFInfo
- Publication number
- CN203717966U CN203717966U CN201420084555.4U CN201420084555U CN203717966U CN 203717966 U CN203717966 U CN 203717966U CN 201420084555 U CN201420084555 U CN 201420084555U CN 203717966 U CN203717966 U CN 203717966U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- valve
- pins
- novel
- rod
- 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 - Lifetime
Links
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 230000003628 erosive effect Effects 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 8
- 210000004907 gland Anatomy 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000012856 packing Methods 0.000 abstract 4
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Abstract
The utility model relates to a novel four-eccentric butterfly valve structure which comprises a valve body, wherein a valve rod is arranged on the valve body in a penetrating manner; bushings are symmetrically arranged on the valve rod; a valve plate is positioned between the two bushings and is connected to the periphery of the valve rod through pins; inclined surfaces are formed at the peripheries of the pins; a packing is packed between the valve rod and the valve body; a packing pressing sleeve is arranged at one end of the valve rod and is propped against a packing pressing cover; a flushing preventing ring is further arranged at one end of the valve rod and inside the packing pressing cover. The structure is simple in structure and convenient to mount, as the inclined surfaces which are in included angles with the horizontal plane are machined on the pins, the valve rod is tightly assembled when being mounted by utilizing the inclined surfaces, the thrust surface area of the pins and the valve rod is increased, and not only are influences of the pins on the strength of the valve rod effectively reduced in the working process, but also the possibility that clearance is formed between the pins and the rod is reduced.
Description
Technical field
The utility model relates to valve body, relates in particular to a kind of novel four eccentric-butterfly-valve structures.
Background technique
At present, the mode of existing four its transmitting torques of eccentric-butterfly-valve all adopts straight pin or keyway transmission, but while utilizing above-mentioned straight pin as torque drive, valve rod and straight pin can produce matching hole, and this matching hole affects valve rod intensity can cause valve stem crack; When adopting key transmission, because the accuracy of manufacturing of valve rod and valve plate is higher, after long-time use, between valve rod and valve plate, gap be can produce in addition, thereby degree of regulation and the sealability of valve affected; When final controlling element moment of torsion is excessive cause valve rod to twist off after, owing to existing pressure easily to produce valve rod is gone out to the situation of valve body in pipeline, thereby cause danger.In addition because valve rod is optical axis, and valve rod is connected by fixing pin with valve plate, and the lifting surface area due to valve plate after valve opening is different, and pipeline pressure can drive play before and after valve plate and valve rod, thereby affects stability and the sealing effect of valve body.
Model utility content
The applicant, for above-mentioned existing issue, is studied improvement, and a kind of novel four eccentric-butterfly-valve structures are provided, and has not only increased the intensity of valve rod, has also improved degree of regulation and the sealability of valve.
The technological scheme that the utility model adopts is as follows:
Novel four eccentric-butterfly-valve structures, comprise valve body, and valve rod through-going device is in described valve body, and lining symmetrical mounting, on described valve rod, between two linings, also connects valve plate by pin in the periphery of described valve rod, and the periphery that is positioned at described pin has inclined-plane; Returning apparatus filler between described valve rod and valve body, filler pressing sleeve device is in one end of valve rod and by Gland butt; In described Gland, be positioned at one end returning apparatus erosion control circle of described valve rod.
Its further technological scheme is:
The end that is positioned at described valve body is affixed end cap also, the other end butt of the inner side of described end cap and valve rod;
Between the inclined-plane of described pin and horizontal plane, form angle α, the angle of described angle α is 2 °～2.3 °;
Described erosion control circle is semi-open type cirque body.
The beneficial effects of the utility model are as follows:
The utility model is simple in structure, easy for installation, by process the inclined-plane with horizontal plane with angle on pin, utilize this inclined-plane when mounted valve rod to be realized to close-fitting, increased the lifting surface area of pin and valve rod, not only effectively reduced the intensity effect of pin to valve rod in working procedure, also reduce both and produced the possibility in gap, reached locking, reduced the phenomenon in valve dead band.By erosion control circle is designed to semi-open type cirque body; make it when valve stem crack and valve rod periphery is close to; thrust ring is driven and lining butt by valve rod simultaneously; play multilayer protection; simultaneously end and the end cap butt of valve rod, prevent the valve rod play that makes progress, and avoided valve rod to go out the situation of valve body; reduce danger, effectively improved stability of the present utility model and sealing.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model.
Fig. 2 is the structural representation that in the utility model, valve rod and taper pin coordinate.
Wherein: 1, valve rod; 101, groove; 2, erosion control circle; 3, Gland; 4, filler; 5, valve body; 6, lining; 7, valve plate; 701, valve plate hole; 8, pin; 9, filler pressing sleeve; 10, end cap.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As shown in Figure 1, a kind of novel four eccentric-butterfly-valve structures, comprise valve body 5, valve rod 1 through-going device is in valve body 5, lining 6 symmetrical mountings are on valve rod 1, between two linings 6, periphery at valve rod 1 also connects valve plate 7(as shown in Figure 1 by pin 8, pin 8 has two), on valve plate 7, have valve plate hole 701 for installing pin 8, the periphery that is positioned at pin 8 has inclined-plane, between the inclined-plane of pin 8 and horizontal plane, forms angle α, the angle of angle α is 2 °～2.3 °, groove 101 close-fittings that have on the inclined-plane of pin 8 and valve rod 1.Returning apparatus filler 4 between valve rod 1 and valve body 5, filler pressing sleeve 9 is installed on one end of valve rod 1 and passes through Gland 3 butts; In Gland 3, be positioned at one end returning apparatus erosion control circle 2 of valve rod 1.The end that is positioned at valve body 5 is affixed end cap 10 also, the other end butt of the inner side of end cap 10 and valve rod 1, and above-mentioned erosion control circle 2 is semi-open type cirque body.
The utility model is simple in structure, easy for installation, by process the inclined-plane with horizontal plane with angle on pin, utilize this inclined-plane when mounted valve rod to be realized to close-fitting, increased the lifting surface area of pin and valve rod, not only effectively reduced the intensity effect of pin to valve rod in working procedure, also reduce both and produced the possibility in gap, reached locking, reduced the phenomenon in valve dead band.By erosion control circle is designed to semi-open type cirque body; make it when valve stem crack and valve rod periphery is close to; thrust ring is driven and lining butt by valve rod simultaneously; play multilayer protection; simultaneously end and the end cap butt of valve rod, prevent the valve rod play that makes progress, and avoided valve rod to go out the situation of valve body; reduce danger, effectively improved stability of the present utility model and sealing.
More than describing is to explanation of the present utility model, is not the restriction to model utility, and the utility model limited range, referring to claim, within protection domain of the present utility model, can be done any type of modification.
Claims (4)
1. novel four eccentric-butterfly-valve structures, comprise valve body (5), valve rod (1) through-going device is in described valve body (5), lining (6) symmetrical mounting is on described valve rod (1), it is characterized in that: be positioned between two linings (6), periphery at described valve rod (1) also connects valve plate (7) by pin (8), and the periphery that is positioned at described pin (8) has inclined-plane; Be positioned at returning apparatus filler (4) between described valve rod (1) and valve body (5), filler pressing sleeve (9) is installed on one end of valve rod (1) and passes through Gland (3) butt; In described Gland (3), be positioned at one end returning apparatus erosion control circle (2) of described valve rod (1).
2. a kind of novel four eccentric-butterfly-valve structures as claimed in claim 1, is characterized in that: the end that is positioned at described valve body (5) is affixed end cap (10) also, the other end butt of the inner side of described end cap (10) and valve rod (1).
3. a kind of novel four eccentric-butterfly-valve structures as claimed in claim 1, is characterized in that: between the inclined-plane of described pin (8) and horizontal plane, form angle α, the angle of described angle α is 2 °～2.3 °.
4. a kind of novel four eccentric-butterfly-valve structures as claimed in claim 1, is characterized in that: described erosion control circle (2) is semi-open type cirque body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420084555.4U CN203717966U (en) | 2014-02-26 | 2014-02-26 | Novel four-eccentric butterfly valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420084555.4U CN203717966U (en) | 2014-02-26 | 2014-02-26 | Novel four-eccentric butterfly valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717966U true CN203717966U (en) | 2014-07-16 |
Family
ID=51157117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420084555.4U Expired - Lifetime CN203717966U (en) | 2014-02-26 | 2014-02-26 | Novel four-eccentric butterfly valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847909A (en) * | 2015-04-17 | 2015-08-19 | 无锡斯沃特流体控制技术有限公司 | Four-eccentric hard sealing type butterfly valve |
-
2014
- 2014-02-26 CN CN201420084555.4U patent/CN203717966U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847909A (en) * | 2015-04-17 | 2015-08-19 | 无锡斯沃特流体控制技术有限公司 | Four-eccentric hard sealing type butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
|
| CX01 | Expiry of patent term |