CN205908758U - High pressure resistant eccentric butterfly valve - Google Patents
High pressure resistant eccentric butterfly valve Download PDFInfo
- Publication number
- CN205908758U CN205908758U CN201620632827.9U CN201620632827U CN205908758U CN 205908758 U CN205908758 U CN 205908758U CN 201620632827 U CN201620632827 U CN 201620632827U CN 205908758 U CN205908758 U CN 205908758U
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- CN
- China
- Prior art keywords
- valve
- shaft sleeve
- axle sleeve
- valve rod
- high pressure
- 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 discloses a high pressure resistant eccentric butterfly valve, include valve rod, valve plate, valve body, go up axle sleeve and lower axle sleeve, upward axle sleeve, lower axle sleeve set up respectively in the upper and lower portion of valve body, the valve rod supports on the valve body through the last axle sleeve that sets up from top to bottom, lower axle sleeve, the valve rod surface interval of going up in the axle sleeve hole is equipped with the twice annular, is equipped with the sealing washer in the annular, constitutes dual radial shaft seal structure, valve rod surface interval in the axle sleeve hole is equipped with the twice annular down, is equipped with the sealing washer in the annular, constitutes dual radial shaft seal structure, the further improvement lies in: upward axle sleeve, lower axle sleeve hole surface are equipped with metal wear -resistant coating respectively, valve rod, valve plate pass through spline struvture and connect. The utility model discloses sealed reliable, the valve leakage volume is few, high pressure resistant, long service life.
Description
Technical field
This utility model is related to a kind of valve, particularly a kind of eccentric-butterfly-valve.
Background technology
Eccentric-butterfly-valve is widely used in the industrial pipelines such as metallurgy, electric power, petrochemical industry and plumbing and urban construction
On, make adjustments flow and block fluid use.The valve rod of existing eccentric-butterfly-valve passes through Upper shaft sleeve setting up and down, Lower shaft sleeve supporting
On valve body, interporal lacuna cooperation in valve rod and Upper shaft sleeve, Lower shaft sleeve, during use, pumped (conveying) medium easily from valve rod and Upper shaft sleeve,
Leak at inner hole of shaft sleeve cooperation, sealing reliability is poor, pressure poor performance.
Content of the invention
This utility model is directed to the deficiencies in the prior art, proposes a kind of to significantly improve sealing reliability, pressure performance
High pressure resistant eccentric-butterfly-valve.
This utility model is achieved through the following technical solutions technical goal.
High pressure resistant eccentric-butterfly-valve, including valve rod, valve plate, valve body, Upper shaft sleeve and Lower shaft sleeve；Described Upper shaft sleeve, Lower shaft sleeve divide
It is not arranged on valve body upper and lower part；Described valve rod is bearing on valve body by Upper shaft sleeve setting up and down, Lower shaft sleeve；It improves it
Place is: the stem surface in described Upper shaft sleeve endoporus is interval with twice annular groove, is provided with sealing ring in annular groove, constitutes dual footpath
To shaft seal structure；Stem surface in described Lower shaft sleeve endoporus is interval with twice annular groove, is provided with sealing ring in annular groove, constitutes double
Weight radial shaft seal structure.
In said structure, described Upper shaft sleeve, Lower shaft sleeve bore area are respectively equipped with abrasion-resistant metal coating.
In said structure, described valve rod, valve plate are connected by spline structure.
This utility model compared with prior art, has the positive effect that:
1st, the stem surface in upper and lower inner hole of shaft sleeve is respectively separated and is provided with twice annular groove, is provided with sealing ring in annular groove, constitutes
Double radial shaft seal structure, so, significantly improves and reliably seals at upper and lower axle sleeve and valve rod cooperation, even if in certain pressure
Under, pumped (conveying) medium also will not leak at valve rod with Upper shaft sleeve, Lower shaft sleeve inner hole, significantly improves this utility model resistance to pressure
Energy.
2nd, Upper shaft sleeve, Lower shaft sleeve bore area are respectively equipped with abrasion-resistant metal coating, significantly improve Upper shaft sleeve, Lower shaft sleeve endoporus
Surface abrasion resistance, improves this utility model service life.
3rd, valve rod, valve plate are connected by spline structure, and spline connection can eliminate fit-up gap to greatest extent, make valve plate action
Position is accurately it is ensured that seal stability.
Brief description
Fig. 1 is this utility model structural representation.
Fig. 2 is enlarged schematic partial view in Fig. 1.
Fig. 3 is enlarged schematic partial view in Fig. 1.
Specific embodiment
Below according to accompanying drawing and in conjunction with the embodiments the utility model is described in further detail.
High pressure resistant eccentric-butterfly-valve shown in the drawings, including valve rod 1, valve plate 2, valve body 3, Upper shaft sleeve 4 and Lower shaft sleeve 5, this reality
Apply in example, valve rod 1, valve plate 2 are connected by spline structure；Upper shaft sleeve 4, Lower shaft sleeve 5 are separately positioned on valve body 3 upper and lower part, this reality
Apply in example, Upper shaft sleeve 4, Lower shaft sleeve 5 bore area are respectively equipped with abrasion-resistant metal coating；Valve rod 1 passes through Upper shaft sleeve setting up and down
4th, Lower shaft sleeve 5 is bearing on valve body 3；Valve rod 1 spaced surface in Upper shaft sleeve 4 endoporus is provided with twice annular groove, is provided with close in annular groove
Seal 6, constitutes double radial shaft seal structure；Valve rod 1 spaced surface in Lower shaft sleeve 5 endoporus is provided with twice annular groove, sets in annular groove
There is sealing ring 6, constitute double radial shaft seal structure.
Claims (3)
1. a kind of high pressure resistant eccentric-butterfly-valve, including valve rod (1), valve plate (2), valve body (3), Upper shaft sleeve (4) and Lower shaft sleeve (5)；Institute
State Upper shaft sleeve (4), Lower shaft sleeve (5) is separately positioned on valve body (3) upper and lower part；Described valve rod (1) passes through Upper shaft sleeve setting up and down
(4), Lower shaft sleeve (5) is bearing on valve body (3)；It is characterized in that: valve rod (1) spaced surface in described Upper shaft sleeve (4) endoporus
It is provided with twice annular groove, in annular groove, is provided with sealing ring (6), constitute double radial shaft seal structure；Valve in described Lower shaft sleeve (5) endoporus
Bar (1) spaced surface is provided with twice annular groove, is provided with sealing ring (6) in annular groove, constitutes double radial shaft seal structure.
2. high pressure resistant eccentric-butterfly-valve according to claim 1 it is characterised in that: described Upper shaft sleeve (4), in Lower shaft sleeve (5)
Hole surface is respectively equipped with abrasion-resistant metal coating.
3. high pressure resistant eccentric-butterfly-valve according to claim 1 and 2 it is characterised in that: described valve rod (1), valve plate (2) pass through
Spline structure connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620632827.9U CN205908758U (en) | 2016-06-24 | 2016-06-24 | High pressure resistant eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620632827.9U CN205908758U (en) | 2016-06-24 | 2016-06-24 | High pressure resistant eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205908758U true CN205908758U (en) | 2017-01-25 |
Family
ID=57812834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620632827.9U Expired - Fee Related CN205908758U (en) | 2016-06-24 | 2016-06-24 | High pressure resistant eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205908758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987180A (en) * | 2016-06-24 | 2016-10-05 | 江苏中昊船用阀门制造有限公司 | High pressure resistant eccentric butterfly valve |
| US11994220B1 (en) | 2022-11-10 | 2024-05-28 | Caterpillar Inc. | Wear surface sleeve press fit onto a shaft in a high temperature air valve application |
-
2016
- 2016-06-24 CN CN201620632827.9U patent/CN205908758U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987180A (en) * | 2016-06-24 | 2016-10-05 | 江苏中昊船用阀门制造有限公司 | High pressure resistant eccentric butterfly valve |
| US11994220B1 (en) | 2022-11-10 | 2024-05-28 | Caterpillar Inc. | Wear surface sleeve press fit onto a shaft in a high temperature air valve application |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 Termination date: 20210624 |