CN211117664U - Floating valve plate sealing butterfly valve - Google Patents
Floating valve plate sealing butterfly valve Download PDFInfo
- Publication number
- CN211117664U CN211117664U CN201922023186.3U CN201922023186U CN211117664U CN 211117664 U CN211117664 U CN 211117664U CN 201922023186 U CN201922023186 U CN 201922023186U CN 211117664 U CN211117664 U CN 211117664U
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- CN
- China
- Prior art keywords
- valve
- valve body
- floating
- valve plate
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 14
- 210000001503 joint Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
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Abstract
The utility model discloses a floating valve plate seals butterfly valve, which comprises a valve body, the fixed cover in inner chamber middle part of valve body connects and is equipped with long axle sleeve, the bottom fixed connection of valve body is equipped with the disk seat, the inside fixed connection of disk seat is equipped with the valve plate, the fixed grafting in inner chamber upper end of valve body is equipped with the valve rod, it is equipped with and is located to insert in the inner chamber of valve body the lower valve rod of valve rod below. Compared with the prior art, the utility model the advantage lie in: the sealing effect of the floating valve plate sealing butterfly valve is good.
Description
Technical Field
The utility model relates to a butterfly valve technical field specifically indicates a butterfly valve is sealed to valve plate floats.
Background
The central line butterfly valve is a part that is used for realizing pipe-line system break-make and flow control, utilizes the interference fit realization of valve plate and disk seat to seal, and at present, traditional central line butterfly valve plate is generally the tight fit with being connected of valve rod in the market, and the butterfly valve plate is the sealed key part of butterfly valve, and central line butterfly valve plate symmetry degree requirement is very high, consequently needs accurate digit control machine tool and strict quality control just can accomplish that valve seal does not reveal, and these problems all remain to be solved, so need improve this.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a sealed effectual butterfly valve of valve plate seal.
In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a butterfly valve is sealed to floating valve plate, includes the valve body, the fixed cover in inner chamber middle part of valve body connects and is equipped with long axle sleeve, the bottom fixed connection of valve body is equipped with the disk seat, the inside fixed connection of disk seat is equipped with the valve plate, the fixed grafting in inner chamber upper end of valve body is equipped with the valve rod, the grafting is equipped with and is located in the inner chamber of valve body the lower valve rod of valve rod below.
Compared with the prior art, the utility model the advantage lie in: the utility model provides a butterfly valve is sealed to floating valve plate, includes the valve body, the fixed cover in inner chamber middle part of valve body connects and is equipped with long axle sleeve, can play the effect that the cooperation valve body is connected like this, the bottom fixed connection of valve body is equipped with the disk seat, can play the connection effect like this, the inside fixed connection of disk seat is equipped with the valve plate, the fixed grafting in inner chamber upper end of valve body is equipped with the valve rod, it is equipped with and is located to peg graft in the inner chamber of valve body go up the lower valve rod of valve rod below, can play the effect of driving.
As an improvement, a retainer ring for a hole is fixedly sleeved between the upper valve rod and the valve body, so that the sealing function can be achieved.
As an improvement, a gasket positioned below the hole check ring is fixedly sleeved between the upper valve rod and the valve body, so that the function of protecting and separating the hole check ring and the shaft check ring can be achieved.
As an improvement, a shaft check ring positioned below the gasket is fixedly sleeved between the upper valve rod and the valve body, so that the function of protecting a shaft can be achieved.
As an improvement, a short shaft sleeve positioned below the shaft retainer ring is fixedly sleeved and connected between the upper valve rod and the valve body, and an O-shaped sealing ring is embedded and connected in the middle of the short shaft sleeve, so that a sealing effect can be achieved.
Drawings
Fig. 1 is a schematic structural view of the floating valve plate sealing butterfly valve of the present invention.
Fig. 2 is a partial schematic view of a valve plate of the floating valve plate sealing butterfly valve of the present invention.
As shown in the figure: 1. the valve comprises an upper valve rod, 2, a hole retainer ring, 3, a gasket, 4, a shaft retainer ring, 5, a short shaft sleeve, 6, an O-shaped sealing ring, 7, a valve body, 8, a long shaft sleeve, 9, a valve seat, 10, a valve plate, 11 and a lower valve rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model discloses when concrete implementation, a floating valve plate seals butterfly valve is provided, including valve body 7, the fixed cover in middle part of the inner chamber of valve body 7 connects and is equipped with long axle sleeve 8, the bottom fixed connection of valve body 7 is equipped with disk seat 9, the inside fixed connection of disk seat 9 is equipped with valve plate 10, the fixed grafting in inner chamber upper end of valve body 7 is equipped with valve rod 1, it is equipped with and is located to insert in the inner chamber of valve body 7 go up the lower valve rod 11 of 1 below of valve rod.
A retainer ring 2 for holes is fixedly sleeved between the upper valve rod 1 and the valve body 7.
And a gasket 3 positioned below the hole retainer ring 2 is fixedly sleeved between the upper valve rod 1 and the valve body 7.
And a shaft check ring 4 positioned below the gasket 3 is fixedly sleeved between the upper valve rod 1 and the valve body 7.
The upper valve rod 1 and the valve body 7 are fixedly sleeved with a short shaft sleeve 5 positioned below the shaft retainer ring 4, and the middle part of the short shaft sleeve 5 is embedded with an O-shaped sealing ring 6.
The utility model discloses a theory of operation is: the utility model discloses a floating valve plate seals butterfly valve sealed effectual, at present, the traditional central line butterfly valve plate in the market is generally the tight fit with the connection of valve rod, and the butterfly valve plate is the key part that the butterfly valve seals, and central line butterfly valve plate symmetry requires very much, leads to the leakproofness often not good, and to these circumstances, this floating valve plate 10 seals butterfly valve, including valve body 7, the fixed cover of the inner chamber middle part of valve body 7 is equipped with long axle sleeve 8, long axle sleeve 8 cooperates valve body 7 to connect, the bottom fixed connection of valve body 7 is equipped with valve seat 9, can utilize valve seat 9 to play the connection effect, and in addition, the inside fixed connection of valve seat 9 is equipped with valve plate 10, the inner chamber upper end fixed grafting of valve body 7 is equipped with upper valve rod 1, the lower valve rod 11 that is located in the inner chamber of valve body 7 is inserted and connected to be equipped with and is located upper valve rod 1, can utilize upper valve, a hole check ring 2 is fixedly sleeved between the upper valve rod 1 and the valve body 7, a gasket 3 is fixedly sleeved below the hole check ring 2, a shaft check ring 4 is connected below the gasket 3, a short shaft sleeve 5 positioned below the shaft check ring 4 is fixedly sleeved between the upper valve rod 1 and the valve body 7, an O-shaped sealing ring 6 is embedded in the middle of the short shaft sleeve 5, in addition, referring to fig. 2, the dimensional fit a of the valve plate 10 and the valve rod is clearance fit, B is tight fit, a > B, so that under the action of the valve seat 9, the valve plate 10, can generate micro-offset in the A direction to realize floating seal, so that the tolerance of the symmetry degree can be enlarged in the process of processing the valve plate 10, the working time cost is reduced, and because the micro-offset can be realized, in the opening and closing process of the butterfly valve, the valve plate 10 is self-centering, so that the torque can be reduced, and the sealing performance is improved.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (5)
1. The utility model provides a floating valve plate seals butterfly valve, includes valve body (7), its characterized in that: the fixed cover in inner chamber middle part of valve body (7) connects and is equipped with long axle sleeve (8), the bottom fixed connection of valve body (7) is equipped with disk seat (9), the inside fixed connection of disk seat (9) is equipped with valve plate (10), the fixed grafting in inner chamber upper end of valve body (7) is equipped with valve rod (1), it is equipped with to peg graft in the inner chamber of valve body (7) is located lower valve rod (11) of last valve rod (1) below.
2. The floating valve plate seal butterfly valve of claim 1, wherein: a check ring (2) for holes is fixedly sleeved between the upper valve rod (1) and the valve body (7).
3. The floating valve plate seal butterfly valve of claim 2, wherein: and a gasket (3) positioned below the hole check ring (2) is fixedly sleeved between the upper valve rod (1) and the valve body (7).
4. A floating valve plate seal butterfly valve in accordance with claim 3, wherein: and a shaft check ring (4) positioned below the gasket (3) is fixedly sleeved between the upper valve rod (1) and the valve body (7).
5. The floating valve plate seal butterfly valve of claim 4, wherein: go up valve rod (1) with fixed cover between valve body (7) connects and is equipped with and is located short axle sleeve (5) of axle retaining ring (4) below, the middle part scarf joint of short axle sleeve (5) is equipped with O type sealing washer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922023186.3U CN211117664U (en) | 2019-11-21 | 2019-11-21 | Floating valve plate sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922023186.3U CN211117664U (en) | 2019-11-21 | 2019-11-21 | Floating valve plate sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211117664U true CN211117664U (en) | 2020-07-28 |
Family
ID=71695997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922023186.3U Expired - Fee Related CN211117664U (en) | 2019-11-21 | 2019-11-21 | Floating valve plate sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211117664U (en) |
-
2019
- 2019-11-21 CN CN201922023186.3U patent/CN211117664U/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: 20200728 |