CN211599562U - High-sealing butterfly valve - Google Patents
High-sealing butterfly valve Download PDFInfo
- Publication number
- CN211599562U CN211599562U CN202020052246.4U CN202020052246U CN211599562U CN 211599562 U CN211599562 U CN 211599562U CN 202020052246 U CN202020052246 U CN 202020052246U CN 211599562 U CN211599562 U CN 211599562U
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- valve
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Abstract
A high-sealing butterfly valve comprises a valve body, a valve plate, an eccentric shaft and a rotating shaft; a valve plate is arranged on the inner wall of the valve body; an annular sealing block is arranged on one side of the valve plate and is sealed in a gap between the valve plate and the valve body; the sealing block is connected to the inner wall of the valve body; the other side of the valve plate is provided with a rotating block and a connecting rod; the eccentric shaft is rotationally connected to the rotating block; one side of the eccentric shaft is rotatably connected to the valve body, and the other side of the eccentric shaft is rotatably connected to the rotating shaft; the rotating shaft is rotatably connected to the valve body; one side of the rotating arm is fixedly connected to the rotating shaft, and the other side of the rotating arm is rotatably connected to the connecting rod; in the utility model, one side of the valve plate is provided with an annular sealing block which is sealed at the gap between the valve plate and the valve body; through the sealing block with the valve plate laminating realizes the sealed to the valve body, has avoided valve body and valve plate to take place the friction, has guaranteed butterfly valve sealing performance.
Description
Technical Field
The utility model relates to a butterfly valve field, concretely relates to high sealed butterfly valve.
Background
A butterfly valve is a valve which is opened and closed by driving a butterfly plate to rotate by a valve rod, is arranged on a pipeline and is used for adjusting and cutting off the flow of a medium, and is a widely applied equipment part in industrial production. However, the problem of long-term friction generally exists in the use of the butterfly valve, the valve body and the valve plate of the butterfly valve are always in a scraping state, the resistance is large, the abrasion is fast, and the sealing performance is poor.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a high sealed butterfly valve to avoid causing the butterfly valve sealing performance variation because of wearing and tearing.
The utility model provides a following technical scheme:
a high-sealing butterfly valve comprises a valve body, a valve plate, an eccentric shaft and a rotating shaft; a valve plate is arranged on the inner wall of the valve body; an annular sealing block is arranged on one side of the valve plate and is sealed in a gap between the valve plate and the valve body; the sealing block is connected to the inner wall of the valve body; the other side of the valve plate is provided with a rotating block and a connecting rod; a certain distance is arranged between the rotating block and the connecting rod; the eccentric shaft is rotationally connected to the rotating block; the axis of the eccentric shaft is parallel to the axis of the connecting rod; one side of the eccentric shaft is rotatably connected to the valve body, and the other side of the eccentric shaft is rotatably connected to the rotating shaft; the rotating shaft is rotatably connected to the valve body; one side of the rotating arm is fixedly connected to the rotating shaft, and the other side of the rotating arm is rotatably connected to the connecting rod.
Preferably, the eccentric shaft comprises a first shaft section, a second shaft section and a third shaft section; the axes of the first shaft section and the third shaft section are coincident; the radius of the second shaft section is larger than the radius of the first shaft section and the radius of the third shaft section; the first shaft section is rotationally connected to the valve body; the second shaft section is rotatably connected to the rotating block; the third shaft section is rotatably connected to the rotating shaft.
Preferably, the eccentric shaft is connected with a first rotating handle; and a second rotating handle is connected to the rotating shaft.
Preferably, the side wall of the valve plate is provided with a first conical surface; the upper radius of the first conical surface is reduced along the direction close to the sealing block; the first conical surface is provided with a first sealing washer; a second conical surface is arranged on the sealing block; the shape of the second conical surface is adaptive to that of the first conical surface; when the butterfly valve is in a closed state, the first sealing washer is attached to the second conical surface of the sealing block.
Preferably, the valve plate comprises a first valve plate and a second valve plate; the first valve plate and the second valve plate are circular; the second valve plate is attached to one side, close to the sealing block, of the first valve plate; the radius of the first valve plate is larger than that of the second valve plate; the sealing block is provided with a first step surface and a second step surface; when the butterfly valve is in a closed state, the first step surface is attached to the first valve plate, and the second step surface is attached to the second valve plate; a second sealing washer is arranged on the first step surface; and a third sealing gasket is arranged on the second step surface.
Preferably, an arc-shaped guide rail is arranged on the valve body; two sides of the axis of the connecting rod are connected with the arc-shaped guide rail in a sliding mode.
Preferably, a first sealing ring is arranged between the eccentric shaft and the valve body; and a second sealing ring is arranged between the rotating shaft and the valve body.
Compared with the prior art, the utility model has the advantages of it is following and effect:
(1) in the utility model, one side of the valve plate is provided with an annular sealing block which is sealed at the gap between the valve plate and the valve body; through the sealing block with the valve plate laminating realizes the sealed to the valve body, has avoided valve body and valve plate to take place the friction, has guaranteed butterfly valve sealing performance.
(2) In the utility model, an eccentric shaft is arranged in the rotating block; one side of the rotating arm is fixedly connected to the rotating shaft, and the other side of the rotating arm is rotatably connected to the connecting rod; the valve plate is rotated by rotating the rotating shaft; the valve plate is prevented from rotating and interfering with the sealing block by rotating the eccentric shaft, and the valve plate is extruded by the eccentric shaft when the butterfly valve is closed, so that the sealing effect of the valve plate on the valve body is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a plan view of the butterfly valve of the present invention in a closed state.
Fig. 2 is a plan view of the butterfly valve of the present invention in an open state.
Fig. 3 is a bottom view of the butterfly valve of the present invention in a closed state.
Fig. 4 is a front view of the butterfly valve of the present invention in a closed state.
Fig. 5 is a front view of the eccentric shaft of the present invention.
In the figure: the valve comprises a valve body 1, a sealing block 2, a first step surface 21, a second step surface 22, a second step surface 23, a second sealing washer 24, a third sealing washer 25, a rotating block 3, a second sealing washer 4, a rotating shaft 5, a second rotating handle 6, a rotating arm 7, a valve plate 8, a first valve plate 81, a second valve plate 82, a first conical surface 83, a first sealing washer 84, a connecting rod 9, an eccentric shaft 10, a first shaft section 101, a second shaft section 102, a third shaft section 103, a first rotating handle 11, a first sealing washer 12 and an arc-shaped guide rail 13.
Detailed Description
The utility model discloses a concrete implementation way does:
referring to fig. 1-5, a high-sealing butterfly valve includes a valve body 1, a valve plate 8, an eccentric shaft 10, and a rotating shaft 5; a valve plate 8 is arranged on the inner wall of the valve body 1; an annular sealing block 2 is arranged on one side of the valve plate 8, and the sealing block 2 is sealed in a gap between the valve plate 8 and the valve body 1; the sealing block 2 is connected to the inner wall of the valve body 1; the other side of the valve plate 8 is provided with a rotating block 3 and a connecting rod 9; the flow direction of the fluid in the valve body 1 is from the valve plate 8 to the sealing block 2, and the sealing property between the valve plate 8 and the sealing block 2 is improved by using the pressure of the fluid; a certain distance is arranged between the rotating block 3 and the connecting rod 9, so that the valve plate 8 can rotate; an eccentric shaft 10 is arranged in the rotating block 3; the eccentric shaft 10 comprises a first shaft section 101, a second shaft section 102 and a third shaft section 103; the axes of the first shaft segment 101 and the third shaft segment 103 coincide; the radius of the second shaft section 102 is larger than that of the first shaft section 101 and that of the third shaft section 103; the axis of the eccentric shaft 10 is parallel to the axis of the connecting rod 9; the first shaft section 101 is rotatably connected to the valve body 1; a first sealing ring 12 is arranged between the eccentric shaft 10 and the valve body 10 to prevent leakage between the eccentric shaft 10 and the valve body 10; the first shaft section 101 extends outwards to the outer side of the valve body 1; the first shaft section 101 is connected with a first rotating handle 11; the second shaft section 102 is rotatably connected to the rotating block 3; the third shaft section 103 is rotatably connected to the rotation shaft 5.
The rotating shaft 5 is rotatably connected to the valve body 1; a second sealing ring 4 is arranged between the rotating shaft 5 and the valve body to prevent leakage between the rotating shaft 5 and the valve body; one side of the rotating shaft 5 extends to the outer side of the valve body 1, and a second rotating handle 6 is connected to the rotating shaft 5; the first rotating handle 11 and the second rotating handle 6 are arranged on the outer side of the valve body 1; one side of the rotating arm 7 is fixedly connected to the rotating shaft 5, and the other side of the rotating arm 7 is rotatably connected to the connecting rod 9; an arc-shaped guide rail 13 is arranged on the valve body 1; the both sides of connecting rod 9 axis sliding connection in arc guide rail 13, through arc guide rail 13 guarantees the stability of valve plate 8 motion.
The valve plate 8 includes a first valve plate 81 and a second valve plate 82; the first valve plate 81 and the second valve plate 82 are circular; the second valve plate 82 is attached to one side of the first valve plate 81 close to the sealing block 2; the rotating block 3 and the connecting rod 9 are arranged on the other side of the first valve plate 81; the side wall of the second valve plate 82 is provided with a first conical surface 83; the first taper surface 83 has a decreasing radius in a direction approaching the sealing block 2; the first conical surface 83 is provided with a first sealing washer 84; the sealing block 2 is provided with a second conical surface 22; the shape of the second conical surface 22 is adapted to the shape of the first conical surface 83; when the butterfly valve is in a closed state, the first sealing washer 84 is attached to the second conical surface 22 of the sealing block 2, and the first sealing washer 84 is attached to the second conical surface 22 more tightly by using the pressure of the valve body fluid.
The radius of the first valve plate 81 is larger than that of the second valve plate 82; the sealing block 2 is provided with a first step surface 21 and a second step surface 23; when the butterfly valve is in a closed state, the first step surface 21 is attached to the first valve plate 81, and the second step surface 23 is attached to the second valve plate 82; a second sealing washer 24 is arranged on the first step surface 21; a third sealing washer 25 is arranged on the second step surface 23; the second sealing washer 24 and the third sealing washer 25 ensure the sealing performance of the joint of the valve plate 8 and the sealing block 2.
The working principle is as follows: when the working personnel need to close the butterfly valve, the second rotating handle 6 is manually rotated; the second rotating handle 6 drives the rotating arm 7 to rotate through the rotating shaft 5; the rotating arm 7 drives the connecting rod 9 to move along the arc-shaped guide rail 13, and the connecting rod 9 drives one side of the valve plate 8 to be attached to the sealing block 2; manually rotating a first rotating handle 12, wherein the first rotating handle 12 drives the eccentric shaft 10 to rotate; the eccentric shaft 10 pushes the other side of the valve plate 8 to be attached to the sealing block 2, so that the valve body 1 is sealed; when the butterfly valve is closed, the valve plate 8 is extruded through the eccentric shaft 10, so that the sealing effect of the valve plate 8 on the valve body 1 is improved; the first sealing washer 84, the second sealing washer 24 and the third sealing washer 25 ensure the sealing performance of the joint of the valve plate 8 and the sealing block 2.
When a worker needs to open the butterfly valve, the worker rotates the first rotating handle 12 to separate one side of the valve plate 8 from the sealing block 2, so that the valve plate 8 is prevented from interfering with the sealing block 2 when rotating; manually rotating a second rotating handle 6, wherein the second rotating handle 6 drives a rotating arm 7 to rotate through a rotating shaft 5; the rotating arm 7 drives the connecting rod 9 to move along the arc-shaped guide rail 13, so that the butterfly valve is opened.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a high sealed butterfly valve which characterized in that: comprises a valve body, a valve plate, an eccentric shaft and a rotating shaft; a valve plate is arranged on the inner wall of the valve body; an annular sealing block is arranged on one side of the valve plate and is sealed in a gap between the valve plate and the valve body; the sealing block is connected to the inner wall of the valve body; the other side of the valve plate is provided with a rotating block and a connecting rod; a certain distance is arranged between the rotating block and the connecting rod; the eccentric shaft is rotationally connected to the rotating block; the axis of the eccentric shaft is parallel to the axis of the connecting rod; one side of the eccentric shaft is rotatably connected to the valve body, and the other side of the eccentric shaft is rotatably connected to the rotating shaft; the rotating shaft is rotatably connected to the valve body; one side of the rotating arm is fixedly connected to the rotating shaft, and the other side of the rotating arm is rotatably connected to the connecting rod.
2. The high-sealing butterfly valve according to claim 1, wherein: the eccentric shaft comprises a first shaft section, a second shaft section and a third shaft section; the axes of the first shaft section and the third shaft section are coincident; the radius of the second shaft section is larger than the radius of the first shaft section and the radius of the third shaft section; the first shaft section is rotationally connected to the valve body; the second shaft section is rotatably connected to the rotating block; the third shaft section is rotatably connected to the rotating shaft.
3. The high-sealing butterfly valve according to claim 1, wherein: the eccentric shaft is connected with a first rotating handle; and a second rotating handle is connected to the rotating shaft.
4. The high-sealing butterfly valve according to claim 1, wherein: the side wall of the valve plate is provided with a first conical surface; the upper radius of the first conical surface is reduced along the direction close to the sealing block; the first conical surface is provided with a first sealing washer; a second conical surface is arranged on the sealing block; the shape of the second conical surface is adaptive to that of the first conical surface; when the butterfly valve is in a closed state, the first sealing washer is attached to the second conical surface of the sealing block.
5. The high-sealing butterfly valve according to claim 1, wherein: the valve plate comprises a first valve plate and a second valve plate; the first valve plate and the second valve plate are circular; the second valve plate is attached to one side, close to the sealing block, of the first valve plate; the radius of the first valve plate is larger than that of the second valve plate; the sealing block is provided with a first step surface and a second step surface; when the butterfly valve is in a closed state, the first step surface is attached to the first valve plate, and the second step surface is attached to the second valve plate; a second sealing washer is arranged on the first step surface; and a third sealing gasket is arranged on the second step surface.
6. The high-sealing butterfly valve according to claim 1, wherein: the valve body is provided with an arc-shaped guide rail; two sides of the axis of the connecting rod are connected with the arc-shaped guide rail in a sliding mode.
7. The high-sealing butterfly valve according to claim 1, wherein: a first sealing ring is arranged between the eccentric shaft and the valve body; and a second sealing ring is arranged between the rotating shaft and the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020052246.4U CN211599562U (en) | 2020-01-10 | 2020-01-10 | High-sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020052246.4U CN211599562U (en) | 2020-01-10 | 2020-01-10 | High-sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211599562U true CN211599562U (en) | 2020-09-29 |
Family
ID=72577868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020052246.4U Expired - Fee Related CN211599562U (en) | 2020-01-10 | 2020-01-10 | High-sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211599562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116753311A (en) * | 2023-08-21 | 2023-09-15 | 江苏祥荣机械制造有限公司 | Eccentric butterfly valve with good sealing performance |
-
2020
- 2020-01-10 CN CN202020052246.4U patent/CN211599562U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116753311A (en) * | 2023-08-21 | 2023-09-15 | 江苏祥荣机械制造有限公司 | Eccentric butterfly valve with good sealing performance |
| CN116753311B (en) * | 2023-08-21 | 2023-11-03 | 江苏祥荣机械制造有限公司 | Eccentric butterfly valve with good sealing performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200929 Termination date: 20220110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |