CN201802884U - Metal hard sealing butterfly valve with double butterfly plates - Google Patents
Metal hard sealing butterfly valve with double butterfly plates Download PDFInfo
- Publication number
- CN201802884U CN201802884U CN2010205333111U CN201020533311U CN201802884U CN 201802884 U CN201802884 U CN 201802884U CN 2010205333111 U CN2010205333111 U CN 2010205333111U CN 201020533311 U CN201020533311 U CN 201020533311U CN 201802884 U CN201802884 U CN 201802884U
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- CN
- China
- Prior art keywords
- butterfly plate
- butterfly
- valve
- voussoir
- valve 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 - Fee Related
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Abstract
The utility model provides a metal hard sealing butterfly valve with double butterfly plates, which comprises a valve body, the first butterfly plate, the second butterfly plate and a valve stem. A fluid channel and an inner cavity are arranged in the valve body; the inner cavity perpendicular to the fluid channel penetrates through the fluid channel; the valve stem is movably arranged in the inner cavity of the valve body; and the fluid channel is provided with a valve seat. The metal hard sealing butterfly valve is characterized in that the first butterfly plate and the second butterfly plate are respectively arranged on two sides of the valve stem in the manner of being perpendicular to the fluid channel, and attached to the valve seat in a sealed manner, the two sides of the valve stem are respectively provided with a first wedge and a second wedge, the valve stem is slidably connected with the first butterfly plate and the second butterfly plate in a dovetail assistance manner respectively by the aid of the first wedge and the second wedge, the contact surface of the first butterfly plate with the first wedge matches with the shape of the first wedge, and the contact surface of the second butterfly plate with the second wedge matches with the shape of the second wedge. The metal hard sealing butterfly valve is capable of functioning in effective sealing, elimination of sealing surface friction and adjustment of sealing specific pressure.
Description
[technical field]
The utility model relates to a kind of valving, particularly a kind of pair of Butterfly plate valve door device.
[background technique]
Problems such as the sealing configuration of existing valve exists the sealing deficiency easily, and the friction between the sealing surface is impaired.The existing reed valve device is though can alleviate the impaired problem of the friction of sealing surface, seal pressure that can not regulating valve.
[model utility content]
The technical problems to be solved in the utility model is to provide a kind of pair of butterfly plate metal hard-sealing butterfly valve, and it can play effective sealing, eliminates the friction of sealing surface, regulates the effect of seal pressure.
The utility model is achieved in that
A kind of pair of butterfly plate metal hard-sealing butterfly valve of the utility model, it comprises valve body, first butterfly plate, second butterfly plate, one valve rod, be provided with a fluid passage and vertical and run through an inner chamber of this fluid passage in the described valve body, described valve rod is movable to be arranged at described body cavity, described fluid passage is provided with a valve seat, it is characterized in that: described first butterfly plate, second butterfly plate is arranged at the valve rod both sides perpendicularly with described fluid passage respectively, and fit with described valve base sealing, the both sides of described valve rod are provided with first voussoir respectively, second voussoir, described valve rod is by described first voussoir and first butterfly plate, be slidingly connected with the secondary form of dovetail by second voussoir and second butterfly plate, the surface of contact of described first butterfly plate and first voussoir and the shape of first voussoir are complementary, and the surface of contact of described second butterfly plate and second voussoir and the shape of second voussoir are complementary.
Further, described first butterfly plate, second butterfly plate with the surface of contact of corresponding voussoir be the inclined-plane.
Further, described butterfly plate is that conical surface contacts with the surface of contact of described valve seat.
Further, described body cavity also comprises and all is set in divided ring on one on the described valve rod, divided ring once, described first butterfly plate is connected with first locating piece, second butterfly plate is connected with second locating piece, described first locating piece, divided ring is withstood in the upper end of second locating piece, and divided ring is withstood down in the lower end.
Further, it also comprises an axostylus axostyle, and a support, described support are arranged at described valve body top, described axostylus axostyle is arranged in the described support, described valve rod upper end is stretched in the described support, and is connected with described axostylus axostyle, described axostylus axostyle symmetry be provided with two spiral chutes, described valve rod upper end radially is provided with a bearing pin, described support is provided with an inverted L shape groove, and described bearing pin passes two spiral chutes of described axostylus axostyle, and is erected at the inverted L shape groove the inside of described support.
Advantage of the present utility model is:
1. good seal performance of the present utility model, and simple in structure, be easy to manufacturing;
2. the utility model can change moving of valve rod by adjusting the angle of swing of axostylus axostyle, thereby adjusts the sealing of butterfly plate and valve seat, changes the seal pressure of valve, is applicable to the working environment of High Temperature High Pressure;
3. butterfly plate of the present utility model has contraction and opens performance, can eliminate the friction between butterfly plate and the sealing surface, and the friction between the voussoir on butterfly plate and the valve rod, the working life of having improved valve.
[description of drawings]
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 is the utility model one embodiment's a positive axially sectional view, wherein shows the butterfly valve closed state.
Fig. 2 is the positive axially sectional view of butterfly valve open mode embodiment illustrated in fig. 1.
Fig. 3 is that B wherein shows partial structurtes to view among Fig. 1 embodiment.
Fig. 4 is the sectional view of A-A among Fig. 1.
[embodiment]
Consult Fig. 1 to Fig. 4, embodiment of the present utility model is elaborated.
As shown in Figure 1 and Figure 2, the utility model one embodiment, it comprises valve body 2, the first butterfly plates 51, second butterfly plate 52, valve rod 8, axostylus axostyle 10, support 11, described support 11 is arranged at described valve body 2 tops, described axostylus axostyle 10 is arranged in the described support 11, and described valve rod 8 upper ends are stretched in the described support 11, and is connected with described axostylus axostyle 10.Described valve rod 8 is movably set in described valve body 2 inner chambers, and described valve body 2 also comprises the valve seat 21 that matches with first butterfly plate 51, second butterfly plate 52, fluid passage 13.Described axostylus axostyle 10 is provided with two spiral chutes 100, and described valve rod 8 upper ends are provided with a bearing pin 9, and described support 11 is provided with an inverted L shape groove 110.Described bearing pin 9 passes two spiral chutes 100 of described axostylus axostyle 10, and is erected at the inverted L shape groove the inside 110 of described support 11.In conjunction with Fig. 3, in the time of axostylus axostyle 10 dextrorotation, two spiral chutes 100 on the axostylus axostyle 10 drive bearing pin 9 and move up along the inverted L shape groove on the support 11.Because bearing pin 9 is connected with valve rod 8, so valve rod 8 also moves up synchronously.Axostylus axostyle 10 continues rotation, and bearing pin 9 is done 90 ° of rotations along the inverted L shape groove, and valve rod 8 is rotation simultaneously also, if instead axostylus axostyle 10 is left-handed, valve rod 8 first half-twists move down then.
The upper end-hole of described valve body 2 is disposed with upper press cover 7, filler 14, last lining 6 from top to bottom, and the mesopore of described upper press cover 7, filler 14, last lining 6 is actively socketed on the valve rod 8, divided ring 15 on the described upward lining 6 terminal pivot bush units one.The lower end mouth of described valve body 2 is disposed with down lining 3 from top to bottom, end cap 1, and the described mesopore of lining 3, end cap 1 down is actively socketed on the valve rod 8, and 3 upper end pivot bush units of described lining down are divided ring 16 once.
In conjunction with Fig. 4, described first butterfly plate 51, second butterfly plate 52 are positioned at described fluid passage 13, are arranged at the both sides of described valve rod 8 respectively.And described first butterfly plate 51, second butterfly plate 52 fit with valve seat 21 sealings of described valve body 2 inner chambers, and perpendicular with described fluid passage 13.Described valve rod 8 sides are provided with first voussoir 121, second voussoir 122, and described voussoir 121,122 is wide at the top and narrow at the bottom.Described valve rod 8 is by described first voussoir 121 and first butterfly plate 51, be slidingly connected with the secondary form of dovetail by second voussoir 122 and second butterfly plate 52, and described first butterfly plate 51 is the inclined-plane with described first voussoir 121, described second butterfly plate 52 with the surface of contact of described second voussoir 122.Described first butterfly plate 51 connects first locating piece 53, second butterfly plate 52 connects second locating piece 54, and divided ring 15 is withstood in described first locating piece 53, second locating piece, 54 upper ends, and divided ring 16 is withstood down in the lower end.
Move up along the inverted L shape groove on the support 11 when axostylus axostyle 10 dextrorotation drive bearing pin 9, valve rod 8 also moves up.Because voussoir and butterfly plate on the valve rod 8 are that the dovetail pair is slidingly connected,, make the butterfly plate 51 of winning, second butterfly plate, 52 disengaging sealing surfaces so first voussoir 121, second voussoir 122 drive first butterfly plate 51 respectively, second butterfly plate 52 moves to the centre.Axostylus axostyle 10 continues rotation, and bearing pin 9 is done 90 ° of rotations along inverted L shape groove 110, and valve rod 8 is rotation simultaneously also, at this moment, valve open, state is as shown in Figure 2 at this moment.If instead axostylus axostyle 10 is left-handed, valve rod 8 first half-twists move down then.First voussoir 121 on the valve rod 8, second voussoir drove first butterfly plate 51 in 122 minutes, second butterfly plate 52 compresses sealing surface, valve closing.State as shown in Figure 1 at this moment.Because described first locating piece 53, second locating piece, 54 upper ends withstand divided ring 15, divided ring 16 is withstood down in the lower end, has prevented the skew of first butterfly plate 51, second butterfly plate 52 above-below direction in mobile process.
The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented according to this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (5)
1. two butterfly plate metal hard-sealing butterfly valve, it comprises valve body, first butterfly plate, second butterfly plate, one valve rod, be provided with a fluid passage and vertical and run through an inner chamber of this fluid passage in the described valve body, described valve rod is movable to be arranged at described body cavity, described fluid passage is provided with a valve seat, it is characterized in that: described first butterfly plate, second butterfly plate is arranged at the valve rod both sides perpendicularly with described fluid passage respectively, and fit with described valve base sealing, the both sides of described valve rod are provided with first voussoir respectively, second voussoir, described valve rod are slidingly connected with the secondary form of dovetail by second voussoir and second butterfly plate by described first voussoir and first butterfly plate, the surface of contact of described first butterfly plate and first voussoir and the shape of first voussoir are complementary, and the surface of contact of described second butterfly plate and second voussoir and the shape of second voussoir are complementary.
2. a kind of pair of butterfly plate metal hard-sealing butterfly valve according to claim 1 is characterized in that: described first butterfly plate, second butterfly plate with the surface of contact of corresponding voussoir be the inclined-plane.
3. a kind of pair of butterfly plate metal hard-sealing butterfly valve according to claim 1 is characterized in that: described butterfly plate is that conical surface contacts with the surface of contact of described valve seat.
4. a kind of pair of butterfly plate metal hard-sealing butterfly valve according to claim 1, it is characterized in that: described body cavity also comprises and all is set in divided ring on one on the described valve rod, divided ring once, described first butterfly plate is connected with first locating piece, second butterfly plate is connected with second locating piece, described first locating piece, divided ring is withstood in the upper end of second locating piece, and divided ring is withstood down in the lower end.
5. a kind of pair of butterfly plate metal hard-sealing butterfly valve according to claim 1, it is characterized in that: it also comprises an axostylus axostyle, one support, described support is arranged at described valve body top, described axostylus axostyle is arranged in the described support, described valve rod upper end is stretched in the described support, and be connected with described axostylus axostyle, described axostylus axostyle symmetry be provided with two spiral chutes, described valve rod upper end radially is provided with a bearing pin, described support is provided with an inverted L shape groove, and described bearing pin passes two spiral chutes of described axostylus axostyle, and is erected at the inverted L shape groove the inside of described support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205333111U CN201802884U (en) | 2010-09-17 | 2010-09-17 | Metal hard sealing butterfly valve with double butterfly plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205333111U CN201802884U (en) | 2010-09-17 | 2010-09-17 | Metal hard sealing butterfly valve with double butterfly plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201802884U true CN201802884U (en) | 2011-04-20 |
Family
ID=43872383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205333111U Expired - Fee Related CN201802884U (en) | 2010-09-17 | 2010-09-17 | Metal hard sealing butterfly valve with double butterfly plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201802884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246931A (en) * | 2016-08-30 | 2016-12-21 | 天津市国威给排水设备制造有限公司 | A kind of adjustable soft sealing butterfly valve |
-
2010
- 2010-09-17 CN CN2010205333111U patent/CN201802884U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246931A (en) * | 2016-08-30 | 2016-12-21 | 天津市国威给排水设备制造有限公司 | A kind of adjustable soft sealing butterfly valve |
| CN106246931B (en) * | 2016-08-30 | 2024-02-13 | 天津市国威给排水设备制造有限公司 | Adjustable soft sealing butterfly 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 |
Granted publication date: 20110420 Termination date: 20150917 |
|
| EXPY | Termination of patent right or utility model |