CN204512468U - A kind of anti-silt mechanism for butterfly valve - Google Patents
A kind of anti-silt mechanism for butterfly valve Download PDFInfo
- Publication number
- CN204512468U CN204512468U CN201420861068.4U CN201420861068U CN204512468U CN 204512468 U CN204512468 U CN 204512468U CN 201420861068 U CN201420861068 U CN 201420861068U CN 204512468 U CN204512468 U CN 204512468U
- Authority
- CN
- China
- Prior art keywords
- valve
- shaft sleeve
- valve plate
- sleeve
- valve body
- 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 claims abstract description 10
- 210000004907 gland Anatomy 0.000 claims abstract description 7
- 238000005461 lubrication Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
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- Lift Valve (AREA)
Abstract
A kind of anti-silt mechanism for butterfly valve, comprise valve body, in valve body, valve plate is set, valve body installs whirling device, Upper shaft sleeve and Lower shaft sleeve are set between described valve body and valve plate, in described Upper shaft sleeve, upper valve rod is set, valve plate is shaped with valve plate hole, upper valve rod inserts in valve plate hole, and is connected by counterbore by screw, Upper shaft sleeve installs interstage sleeve, interstage sleeve has gland; In described Lower shaft sleeve, lower valve rod is set, outside Lower shaft sleeve, has end cap.This programme changes counterbore design into by the through hole be connected with valve plate hole by upper valve rod, counterbore does not communicate, cut off the contact of upper valve rod and valve inner, and between axle sleeve and valve plate, set up sealing O type circle, thoroughly cut off axle sleeve (butterfly valve is inner) and the contact of extraneous medium, prevent silt from entering in axle sleeve, wearing and tearing axle sleeve, thus avoid valve internal to wear and tear and corrode, alleviate valve torque, improve valve working life.
Description
Technical field
The utility model relates to butterfly valve, particularly relates to a kind of anti-silt mechanism for butterfly valve, belongs to valve field.
Background technique
Do not arrange anti-sediment structure between tradition butterfly valve body and whirling device, directly and medium contact, silt is easy to enter valve inner, after the time is long, easily causes valve internal wear and tear and increase the weight of valve torque, reduces the working life of valve for the valve rod of butterfly valve.And the valve plate hole that traditional butterfly valve coordinates with valve shaft is through hole, does not have Sealing between axle sleeve and valve plate, thoroughly cannot cuts off the contact of valve inner and extraneous medium, cause silt to invade, corrode valve internal structure.
Summary of the invention
The purpose of this utility model is the shortcoming in order to overcome prior art, there is provided a kind of and adopt the dry axle design of counterbore, and be furnished with self lubrication bearing and add interstage sleeve, thorough partition valve body (axle sleeve) and extraneous gap, axle sleeve does not wear and tear, open and close flexibly, a kind of anti-silt mechanism for butterfly valve of long service life.
The technological scheme of a kind of anti-silt mechanism for butterfly valve of the utility model is: comprise valve body, in valve body, valve plate is set, valve body installs whirling device, it is characterized in that arranging Upper shaft sleeve and Lower shaft sleeve between described valve body and valve plate, in described Upper shaft sleeve, upper valve rod is set, valve plate is shaped with valve plate hole, upper valve rod inserts in valve plate hole, and be connected by counterbore by screw, Upper shaft sleeve installs interstage sleeve, interstage sleeve has gland; In described Lower shaft sleeve, lower valve rod is set, outside Lower shaft sleeve, has end cap.
A kind of anti-silt mechanism for butterfly valve of the present utility model, main feature is that the through hole by being connected with valve plate hole by upper valve rod changes counterbore design into, counterbore does not communicate, and has cut off the contact of upper valve rod and valve inner, and between axle sleeve and valve plate, set up sealing O type circle, the contact of thorough partition axle sleeve (butterfly valve is inner) and extraneous medium, prevent silt from entering in axle sleeve, wearing and tearing axle sleeve, thus avoid valve internal to wear and tear and corrode, alleviate valve torque, improve valve working life.
A kind of anti-silt mechanism for butterfly valve of the present utility model, installs between described Upper shaft sleeve and valve plate and seals O type circle.Lower seal O type circle is installed between described Lower shaft sleeve and valve plate.There are upper sealing O type circle and lower seal O type circle, valve plate and seal better between Upper shaft sleeve and Lower shaft sleeve.Between described valve body and valve plate, seal ring is installed, and is fixed by sealing gland, had seal ring, seal more reliable between valve plate and valve body.Described Upper shaft sleeve and Lower shaft sleeve are self lubrication bearing, self oiling, and it is flexible, stable that keying is thrown away in permanent use.
Accompanying drawing explanation
Fig. 1 is a kind of anti-silt mechanism structure schematic diagram for butterfly valve of the present utility model.
Embodiment
The utility model relates to a kind of anti-silt mechanism for butterfly valve, as shown in Figure 1, comprises valve body 1, valve plate 2 is set in valve body, valve body is installed whirling device 3, described whirling device is turbine and worm speed reducer, arranges Upper shaft sleeve 4 and Lower shaft sleeve 5 between described valve body 1 and valve plate 2, upper valve rod 6 is set in described Upper shaft sleeve, valve plate 2 is shaped with valve plate hole 7, upper valve rod 6 inserts in valve plate hole 7, and is connected by counterbore 9 by screw 8, Upper shaft sleeve 4 is installed interstage sleeve 10, interstage sleeve 10 has gland 11; In described Lower shaft sleeve 5, lower valve rod 12 is set, outside Lower shaft sleeve 5, has end cap 13.The main feature of this programme is that the through hole by being connected with valve plate hole 7 by upper valve rod 6 changes counterbore 9 into and designs, counterbore does not communicate, cut off the contact of upper valve rod 6 and valve inner, and between axle sleeve and valve plate, set up sealing O type circle, thoroughly cut off axle sleeve (butterfly valve is inner) and the contact of extraneous medium, prevent silt from entering in axle sleeve, wearing and tearing axle sleeve, thus avoid valve internal to wear and tear and corrode, alleviate valve torque, improve valve working life.Install between described Upper shaft sleeve 4 and valve plate 2 and seal O type circle 14.Lower seal O type circle 15 is installed between described Lower shaft sleeve 5 and valve plate 2.There are upper sealing O type circle and lower seal O type circle, valve plate and seal better between Upper shaft sleeve and Lower shaft sleeve.Between described valve body 1 and valve plate 2, seal ring 16 is installed, and is fixed by sealing gland 17, had seal ring 16, seal more reliable between valve plate and valve body.Described Upper shaft sleeve 4 and Lower shaft sleeve 5 are self lubrication bearing, self oiling, and it is flexible, stable that keying is thrown away in permanent use.
Claims (5)
1. the anti-silt mechanism for butterfly valve, comprise valve body (1), valve plate (2) is set in valve body, valve body is installed whirling device (3), it is characterized in that arranging Upper shaft sleeve (4) and Lower shaft sleeve (5) between described valve body (1) and valve plate (2), upper valve rod (6) is set in described Upper shaft sleeve, valve plate (2) is shaped with valve plate hole (7), upper valve rod (6) inserts in valve plate hole (7), and be connected by counterbore (9) by screw (8), Upper shaft sleeve (4) is installed interstage sleeve (10), interstage sleeve (10) has gland (11); In described Lower shaft sleeve (5), lower valve rod (12) is set, outside Lower shaft sleeve (5), has end cap (13).
2. a kind of anti-silt mechanism for butterfly valve as claimed in claim 1, is characterized in that installing between described Upper shaft sleeve (4) and valve plate (2) sealing O type circle (14).
3. a kind of anti-silt mechanism for butterfly valve as claimed in claim 1, is characterized in that installing lower seal O type circle (15) between described Lower shaft sleeve (5) and valve plate (2).
4. a kind of anti-silt mechanism for butterfly valve as claimed in claim 1, is characterized in that installing seal ring (16) between described valve body (1) and valve plate (2), and is fixed by sealing gland (17).
5. a kind of anti-silt mechanism for butterfly valve as claimed in claim 1, is characterized in that described Upper shaft sleeve (4) and Lower shaft sleeve (5) are self lubrication bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420861068.4U CN204512468U (en) | 2014-12-31 | 2014-12-31 | A kind of anti-silt mechanism for butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420861068.4U CN204512468U (en) | 2014-12-31 | 2014-12-31 | A kind of anti-silt mechanism for butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512468U true CN204512468U (en) | 2015-07-29 |
Family
ID=53710448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420861068.4U Expired - Fee Related CN204512468U (en) | 2014-12-31 | 2014-12-31 | A kind of anti-silt mechanism for butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204512468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115704479A (en) * | 2021-08-03 | 2023-02-17 | 中国石油天然气集团有限公司 | Flue Butterfly Valve with Lower Shafting Support Structure |
-
2014
- 2014-12-31 CN CN201420861068.4U patent/CN204512468U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115704479A (en) * | 2021-08-03 | 2023-02-17 | 中国石油天然气集团有限公司 | Flue Butterfly Valve with Lower Shafting Support Structure |
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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: 20150729 Termination date: 20161231 |