CN202118276U - Double-sealing butterfly valve with double valve plates - Google Patents
Double-sealing butterfly valve with double valve plates Download PDFInfo
- Publication number
- CN202118276U CN202118276U CN2011202281660U CN201120228166U CN202118276U CN 202118276 U CN202118276 U CN 202118276U CN 2011202281660 U CN2011202281660 U CN 2011202281660U CN 201120228166 U CN201120228166 U CN 201120228166U CN 202118276 U CN202118276 U CN 202118276U
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- valve
- plate
- seal ring
- rubber seal
- plates
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Abstract
The utility model relates to a double-sealing butterfly valve with double valve plates, which comprises a valve body, a valve rod and a valve seat, wherein a rubber sealing ring is arranged in the valve body; valve plates are arranged in the rubber sealing ring; the overall thickness of the valve plates is less that that of the rubber sealing ring; the shape of the valve plates is matched with the shape of the inner cavity of the rubber sealing ring; the valve rod is connected at the upper parts of the valve plates; the valve rod passes through the rubber sealing ring and the upper part of the valve body to be connected to a driving mechanism; the number of the valve plates is two; the two valve plates are arranged in parallel at a certain interval; an upper connecting body and a lower connecting body are respectively arranged at the upper part and the lower part between the two valve plates so as to connect the two valve plates into a whole body; and the valve rod is connected in the upper connecting body. The butterfly valve can form secondary seal by adopting the double-valve plate structure, thereby promoting the sealing capacity of the butterfly valve in a multiplying manner.
Description
Technical field
The utility model relates to the technical field of valve, particularly relates to a kind of bivalve plate double seals butterfly valve.
Background technique
Butterfly valve is meant that closure member (flap or butterfly plate) is a disk, rotates a kind of valve that reaches open and close around valve shaft, and main rising cut off and throttling usefulness on pipeline.The butterfly valve open-shut device is a discoidal butterfly plate, and the axis around himself in valve body rotates, thereby reaches the purpose that opens and closes or regulate.Normally less than 90 °, butterfly valve and butterfly bar itself do not have self-lock ability to the butterfly valve standard-sized sheet to complete shut-down, for the location of butterfly plate, on valve rod, install worm speed reducer additional.Adopt worm speed reducer, not only can make butterfly plate have self-lock ability, butterfly plate is stopped on the arbitrary position, can also improve the operating characteristics of valve.
Existing reed valve all is single valve plate, leans on the edge of valve plate to combine with Sealing to realize sealing that its sealability is relatively poor; Its seal element has plenty of the seal ring that is installed on the valve plate in addition, has plenty of the seal ring that is embedded in valve interior surface; Its seal element mostly is circle or ring in a word; In the rotation of valve plate, to its friction with gnaw and cut comparison severity, seal ring often occurs or ring comes off, often run that to leak all be to begin from here.
The model utility content
The purpose of the utility model is in order to address the above problem, bivalve plate double seals butterfly valve to be provided.
The technological scheme of the utility model is: a kind of bivalve plate double seals butterfly valve, contain valve body, valve rod, valve seat, and in the described valve body rubber seal ring is installed; Valve plate is installed in the rubber seal ring, and the integral thickness of valve plate is less than the thickness of this rubber seal ring, and valve plate shape and rubber seal ring cavity shape mate; Valve plate top is connected with valve rod, and valve rod passes rubber seal ring and valve body top is connected to driving mechanism, and described valve plate is the bivalve plate; Two valve plates laterally arrange, and are at regular intervals, and the upper and lower between two valve plates is respectively equipped with upper and lower connecting body; Two valve plates are connected as one, and described valve rod is connected in the connecting body on top.
The inner chamber of described rubber seal ring is a sphere, and this sphere centre face is through the center line of valve rod; Described valve plate be shaped as the circle with above-mentioned sphere coupling, the edge of valve plate is the sphere edge, the sphere of the inner chamber of this sphere edge and rubber seal ring is on the same sphere.
Be connected through pin between the last connecting body of described valve plate and the valve rod, be inserted with down apical axis in the following connecting body of described valve plate, the outer end of this time apical axis passes rubber seal ring and is installed in the valve body.
Be provided with stuffing box gland between described valve rod and the valve seat, be provided with stuffing box gland between described apical axis down and the valve body.
Two edges of described rubber seal ring outer ring surface are respectively equipped with flange, and these two flange are buckled in the both sides of valve body respectively.
Described driving mechanism is the worm and gear operating device.
Be provided with several between described two valve plates and strengthen a muscle, be distributed between two valve plates.
Described reinforcement prop up muscle be cylindrical, or for flat plate shape.
The beneficial effect of the utility model
This butterfly valve adopts bivalve plate structure, can form secondary seal, the sealability of lifting butterfly valve that can be at double.
The rubber seal ring of this butterfly valve is sleeved in the valve body; Valve plate is positioned at its inside, utilizes the internal surface of valve plate edge and this rubber seal ring to compress the realization sealing, and this rubber seal ring is the integral type seal ring; The whole valve plate outside that is sleeved on; Its wear resistance and intensity improve greatly, the obscission of Sealing can not occur, the working life of having improved whole butterfly valve.
Adopt ball face sealing between the valve plate of this butterfly valve and the rubber seal ring, can further improve sealability, and it is damaged to the friction of sealing surface at utmost to reduce valve plate, thereby improved its working life.
Strengthen the intensity that a muscle can improve two valve plates through being provided with, particularly under the bigger situation of valve plate size, can avoid valve plate owing to the pressure of fluid is out of shape.
Description of drawings
Fig. 1 is the structural representation of facing of this bivalve plate double seals butterfly valve;
Fig. 2 be Fig. 1 along stem shaft to cross-sectional view;
Fig. 3 is the A-A cross-sectional view of Fig. 1;
Fig. 4 is the main TV structure schematic representation of valve plate;
Fig. 5 is the plan structure schematic representation of Fig. 4;
Fig. 6 is the B-B cross-sectional view of Fig. 4;
Fig. 7 is the main TV structure schematic representation of valve plate;
Fig. 8 is the plan structure schematic representation of Fig. 7;
Fig. 9 is the B-B cross-sectional view of Fig. 7;
Figure 10 is the main TV structure schematic representation of valve plate;
Figure 11 is the plan structure schematic representation of Figure 10;
Figure 12 is the B-B cross-sectional view of Figure 10;
Figure 13 is the main TV structure schematic representation of valve plate;
Figure 14 is the plan structure schematic representation of Figure 13;
Figure 15 is the B-B cross-sectional view of Figure 13;
Figure 16 is the main TV structure schematic representation of valve plate;
Figure 17 is the plan structure schematic representation of Figure 16;
Figure 18 is the B-B cross-sectional view of Figure 16;
Figure 19 is the main TV structure schematic representation of rubber seal ring;
Figure 20 is the C-C cross-sectional view of Figure 19.
Embodiment
1. valve bodies among the figure, 2. valve rod, 3.. rubber seal ring, 4 valve plates, 5. driving mechanism, 6. apical axis, 7. pin, 8. connecting body, 4-4. pin hole, 4-5. strengthen propping up a muscle under stuffing box gland, 3-1. inner ring surface, 3-2. outer ring surface, 3-3. flange, 4-1. valve plate body, the last connecting body of 4-2., the 4-3..
Embodiment one: referring to Fig. 1-Fig. 6, and Figure 19, Figure 20, a kind of bivalve plate double seals butterfly valve among the figure; Contain valve body, valve rod, valve seat, in the described valve body rubber seal ring is installed, valve plate is installed in the rubber seal ring; The integral thickness of valve plate is less than the thickness of this rubber seal ring, and valve plate shape and rubber seal ring cavity shape mate, and valve plate top is connected with valve rod; Valve rod passes rubber seal ring and valve body top is connected to driving mechanism, and described valve plate is the bivalve plate, and two valve plates laterally arrange; At regular intervals; Upper and lower between two valve plates is respectively equipped with upper and lower connecting body, and two valve plates are connected as one, and described valve rod is connected in the connecting body on top.
The inner chamber of described rubber seal ring is a sphere, and this sphere centre face is through the center line of valve rod; Described valve plate be shaped as the circle with above-mentioned sphere coupling, the edge of valve plate is the sphere edge, the sphere of the inner chamber of this sphere edge and rubber seal ring is on the same sphere.
Be connected through pin between the last connecting body of described valve plate and the valve rod, be inserted with down apical axis in the following connecting body of described valve plate, the outer end of this time apical axis passes rubber seal ring and is installed in the valve body.
Be provided with stuffing box gland between described valve rod and the valve seat, be provided with stuffing box gland between described apical axis down and the valve body.
Two edges of described rubber seal ring outer ring surface are respectively equipped with flange, and these two flange are buckled in the both sides of valve body respectively.
Described driving mechanism is the worm and gear operating device.
Embodiment two: referring to Fig. 7-Fig. 9, embodiment two and embodiment one are basic identical, and something in common does not repeat, and difference does, are provided with several between described two valve plates described in the embodiment two and strengthen a muscle, are distributed between two valve plates; It is cylindrical that muscle is propped up in described reinforcement.
Embodiment three: referring to Figure 10-Figure 12, embodiment three and embodiment two are basic identical, and something in common does not repeat, and difference is that it is two circles that muscle is propped up in the reinforcement described in the embodiment three.
Embodiment four: referring to Figure 13-Figure 15, embodiment four and embodiment one are basic identical, and something in common does not repeat, and difference does, are provided with several between described two valve plates described in the embodiment four and strengthen a muscle, are distributed between two valve plates; It is flat plate shape that muscle is propped up in described reinforcement.
Embodiment five: referring to Figure 16-Figure 18, embodiment four and embodiment three are basic identical, and something in common does not repeat, and difference is that it is two circles that muscle is propped up in the reinforcement described in the embodiment five.
Operating device in the foregoing description can also be other operating devices such as man-operated mechanism, motor drive mechanism, all belongs to the protection domain of this patent, does not detail one by one at this.
Claims (8)
1. a bivalve plate double seals butterfly valve contains valve body, valve rod, valve seat, it is characterized in that: in the described valve body rubber seal ring is installed; Valve plate is installed in the rubber seal ring, and the integral thickness of valve plate is less than the thickness of this rubber seal ring, and valve plate shape and rubber seal ring cavity shape mate; Valve plate top is connected with valve rod, and valve rod passes rubber seal ring and valve body top is connected to driving mechanism, and described valve plate is the bivalve plate; Two valve plates laterally arrange, and are at regular intervals, and the upper and lower between two valve plates is respectively equipped with upper and lower connecting body; Two valve plates are connected as one, and described valve rod is connected in the connecting body on top.
2. bivalve plate double seals butterfly valve according to claim 1 is characterized in that: the inner chamber of described rubber seal ring is a sphere, and this sphere centre face is through the center line of valve rod; Described valve plate be shaped as the circle with above-mentioned sphere coupling, the edge of valve plate is the sphere edge, the sphere of the inner chamber of this sphere edge and rubber seal ring is on the same sphere.
3. bivalve plate double seals butterfly valve according to claim 1; It is characterized in that: be connected through pin between the last connecting body of described valve plate and the valve rod; Be inserted with down apical axis in the following connecting body of described valve plate, the outer end of this time apical axis passes rubber seal ring and is installed in the valve body.
4. bivalve plate double seals butterfly valve according to claim 3 is characterized in that: be provided with stuffing box gland between described valve rod and the valve seat, be provided with stuffing box gland between described apical axis down and the valve body.
5. bivalve plate double seals butterfly valve according to claim 1 is characterized in that: two edges of described rubber seal ring outer ring surface are respectively equipped with flange, and these two flange are buckled in the both sides of valve body respectively.
6. bivalve plate double seals butterfly valve according to claim 1 is characterized in that: described driving mechanism is the worm and gear operating device.
7. according to the described bivalve plate of the arbitrary claim of claim 1-6 double seals butterfly valve, it is characterized in that: be provided with several between described two valve plates and strengthen a muscle, be distributed between two valve plates.
8. bivalve plate double seals butterfly valve according to claim 7 is characterized in that: described reinforcement prop up muscle be cylindrical, or for flat plate shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202281660U CN202118276U (en) | 2011-06-22 | 2011-06-30 | Double-sealing butterfly valve with double valve plates |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120211426.3 | 2011-06-22 | ||
| CN201120211426 | 2011-06-22 | ||
| CN2011202281660U CN202118276U (en) | 2011-06-22 | 2011-06-30 | Double-sealing butterfly valve with double valve plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118276U true CN202118276U (en) | 2012-01-18 |
Family
ID=45459343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202281660U Expired - Fee Related CN202118276U (en) | 2011-06-22 | 2011-06-30 | Double-sealing butterfly valve with double valve plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278487A (en) * | 2011-06-22 | 2011-12-14 | 付永强 | Dual-seal butterfly valve with double valve plates |
-
2011
- 2011-06-30 CN CN2011202281660U patent/CN202118276U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278487A (en) * | 2011-06-22 | 2011-12-14 | 付永强 | Dual-seal butterfly valve with double valve plates |
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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: 20120118 Termination date: 20150630 |
|
| EXPY | Termination of patent right or utility model |