CN210050313U - Two-way sealing butterfly valve - Google Patents
Two-way sealing butterfly valve Download PDFInfo
- Publication number
- CN210050313U CN210050313U CN201920965815.1U CN201920965815U CN210050313U CN 210050313 U CN210050313 U CN 210050313U CN 201920965815 U CN201920965815 U CN 201920965815U CN 210050313 U CN210050313 U CN 210050313U
- Authority
- CN
- China
- Prior art keywords
- valve body
- butterfly plate
- circumference
- ring
- valve
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 6
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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Abstract
The utility model discloses a two way seal butterfly valve, the cylinder valve body has, the front end of valve body has the water inlet, the rear end of valve body has the delivery port, there is the valve shaft on the valve body, one section of valve shaft in the valve body even has the butterfly plate, there is sealed vice between the circumference in the outer circumference of butterfly plate and valve body, sealed vice including link the valve body sealing ring on the valve body seal receptacle of circumference in the valve body with connecting bolt and inlay the butterfly plate sealing ring on the butterfly plate seal receptacle of the outer circumference of butterfly plate with ring clamp plate and bolt, the butterfly plate sealing ring is the J-shaped rubber circle of cross-section for J-shaped, the ring shape installation handle of circumference including J-shaped rubber circle has, the outer circumference of installation handle even has sealed lip through ring shape recess neck, ring clamp plate has the through-hole. The utility model discloses simple structure when using in fluid pipeline, can realize good two way seal.
Description
Technical Field
The utility model relates to a butterfly valve, specifically speaking relate to a two way seal butterfly valve.
Background
The butterfly valve is provided with a cylindrical valve body, the front end of the valve body is provided with a water inlet, the rear end of the valve body is provided with a water outlet, a valve shaft is arranged on the valve body, one section of the valve shaft in the valve body is connected with a butterfly plate, a sealing pair is arranged between the outer circumference of the butterfly plate and the inner circumference of the valve body, and the sealing pair comprises a valve body sealing ring which is connected with a valve body sealing seat on the inner circumference of the valve body through a connecting bolt and a butterfly plate sealing ring which is embedded on the butterfly plate.
In the prior art, a sealing pair between the outer circumference of a butterfly plate of a butterfly valve and the inner circumference of a valve body is a soft-hard sealing pair formed by combining a butterfly plate sealing ring made of rubber materials and a valve body sealing ring made of metal materials. The butterfly plate sealing ring in the soft-hard sealing pair is a T-shaped rubber ring with a T-shaped section, and the butterfly valve can only be used for one-way sealing and cannot be used for two-way sealing.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the above-mentioned not enough, provide a two-way seal butterfly valve that can be used for two-way seal.
For solving the technical problem, the utility model discloses a two-way seal butterfly valve has the cylinder valve body, the front end of valve body has the water inlet, the rear end of valve body has the delivery port, there is the valve shaft on the valve body, one section of valve shaft in the valve body even has the butterfly plate, there is sealed vice between the circumference in the outer circumference of butterfly plate and the valve body, sealed vice including link the valve body sealing ring on the valve body seal receptacle of circumference in the valve body with connecting bolt and inlay the butterfly plate sealing ring on the butterfly plate seal receptacle of the outer circumference of butterfly plate with ring clamp plate and bolt, the butterfly plate sealing ring is the J-shaped rubber circle that the cross-section is J-shaped, the ring shape installation handle of circumference including J-shaped rubber circle has, the outer circumference of installation handle even has sealed lip through ring shape recess neck, ring clamp plate.
The utility model discloses install and use in fluid pipeline. When the fluid flows in the forward direction, after the butterfly valve is closed, the sealing lip of the J-shaped rubber ring of the butterfly plate sealing ring is tightly propped against the sealing ring of the valve body, and ideal sealing is realized on the fluid flowing in the forward direction. When the fluid flows reversely, after the butterfly valve is closed, the pressure of the reverse fluid acts on the groove surface of the neck part of the circular groove of the butterfly plate sealing ring through the through holes uniformly distributed on the neck part of the circular groove of the circular pressing plate, so that the groove surface is expanded and deformed, and the sealing lip is tightly pressed on the sealing ring of the valve body to realize reverse sealing; if the butterfly plate is deformed under the action of the reverse fluid, a small gap is generated between the sealing lip of the butterfly plate sealing ring and the valve body sealing ring to enable the butterfly valve to leak, then the fluid flowing at a high speed is arranged between the sealing lip of the butterfly plate sealing ring and the valve body sealing ring, the pressure of the reverse fluid on the sealing lip of the butterfly plate sealing ring is smaller than the pressure of the groove surface of the butterfly plate sealing ring, the groove surface is enabled to generate the tendency of expansion deformation, the sealing lip is enabled to be tightly abutted to the valve body sealing ring, and good reverse sealing can still be achieved.
The utility model discloses simple structure when using in fluid pipeline, can realize good two way seal.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic sectional view of a main view of a bidirectional sealing butterfly valve according to the technical scheme of the present invention.
Fig. 2 is an enlarged schematic view of the structure at I in fig. 1.
Detailed Description
With reference to figure 1 of the drawings, fig. 2, the utility model discloses a two way seal butterfly valve has cylinder valve body 1, the front end of valve body has water inlet 2, the rear end of valve body has delivery port 3, there is valve shaft 4 on the valve body, there is butterfly plate 5 in one section of valve shaft in the valve body, there is sealed vice between the interior circumference of the outer circumference of butterfly plate and valve body, sealed vice including link valve body sealing ring 7 on the valve body seal receptacle of the circumference in the valve body with connecting bolt 6 and inlay butterfly plate sealing ring 10 on the butterfly plate seal receptacle of the outer circumference of butterfly plate with ring clamp 8 and bolt 9, the butterfly plate sealing ring is the J-shaped rubber circle that the cross-section is J-shaped, the ring shape installation handle 11 of circumference including J-shaped rubber circle has, the outer circumference of installation handle even has sealed lip 13 through ring shape recess neck 12, the recess face of ring shape recess neck is towards the delivery port, ring clamp has through.
Claims (1)
1. The utility model provides a two way seal butterfly valve, has the cylinder valve body, and the front end of valve body has the water inlet, and the rear end of valve body has the delivery port, has the valve shaft on the valve body, and one section of valve shaft in the valve body even has the butterfly plate, has sealed vice between the circumference of the outer circumference of butterfly plate and the interior circumference of valve body, and sealed vice including with the valve body sealing ring of connecting bolt on the valve body seal receptacle of the circumference in the valve body and inlay the butterfly plate sealing ring on the butterfly plate seal receptacle of the outer circumference of butterfly plate with ring-shaped pressing plate and bolt, its: the butterfly plate sealing ring is a J-shaped rubber ring with a J-shaped section, the J-shaped rubber ring is provided with a circular ring-shaped mounting handle at the inner circumference, the outer circumference of the mounting handle is connected with a sealing lip through a circular ring-shaped groove neck, and through holes are uniformly distributed on the circular ring-shaped groove neck by an annular pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920965815.1U CN210050313U (en) | 2019-06-26 | 2019-06-26 | Two-way sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920965815.1U CN210050313U (en) | 2019-06-26 | 2019-06-26 | Two-way sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210050313U true CN210050313U (en) | 2020-02-11 |
Family
ID=69398105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920965815.1U Expired - Fee Related CN210050313U (en) | 2019-06-26 | 2019-06-26 | Two-way sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210050313U (en) |
-
2019
- 2019-06-26 CN CN201920965815.1U patent/CN210050313U/en not_active Expired - Fee Related
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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: 20200211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |