CN203395205U - Butterfly valve - Google Patents
Butterfly valve Download PDFInfo
- Publication number
- CN203395205U CN203395205U CN201320461809.5U CN201320461809U CN203395205U CN 203395205 U CN203395205 U CN 203395205U CN 201320461809 U CN201320461809 U CN 201320461809U CN 203395205 U CN203395205 U CN 203395205U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve shaft
- butterfly
- hypomere
- ceramic layer
- 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 butterfly valve which comprises a butterfly plate, a valve body with a round inner cavity and a valve shaft used for driving the butterfly plate to rotate. A shaft hole is formed in the inner cavity of the valve body in the radial direction, the valve shaft penetrates the shaft hole to be fixedly connected with the butterfly plate, the inner cavity of the valve body is matched with the butterfly plate to form a passage which can be opened and closed, a ceramic layer covers the valve shaft, and the ceramic layer comprises an upper section, a middle section and a lower section which are sequentially arranged. The middle section is arranged to be of a recessed structure relative to the upper section and the lower section, the upper section and the lower section are arranged to be of a protrusion structure relative to the middle section to provide enough space for a fixing block for fixing the valve shaft and the butterfly plate and ensure that the valve shaft and the butterfly plate can be firmly and fixedly connected, the middle section of the ceramic layer is of the recessed structure relative to the upper section and the lower section, impact face of fluid on the ceramic layer is reduced, impact exerted on the valve shaft is reduced accordingly, the service life of the valve shaft is prolonged, and the whole service life of the butterfly valve is prolonged. The butterfly valve is impact-resistant, simple in structure and long in service life.
Description
Technical field
The utility model relates to a kind of butterfly valve, and more particularly, it relates to a kind of butterfly valve of long service life.
Background technique
Butterfly valve is again Flap valve, is a kind of modulating valve simple in structure, and the switch that also can be used for low pressure pipeline medium is simultaneously controlled.Butterfly valve refers to that closure member (flap or butterfly plate) is disk, rotates to reach a kind of valve of open and close around valve shaft, and on pipeline, main rising cut off and throttling action.Butterfly valve open-shut device is a discoidal butterfly plate, and the axis around himself in valve body rotates, thereby reaches the object that opens and closes or regulate.
Butterfly valve is applicable to carry on the pipeline of various corrosivity, non-corrosive fluids medium in the engineering systems such as producer, coal gas, rock gas, liquefied petroleum gas (LPG), town gas, cold and hot air, chemical industry smelting and generation environment-friendly, for regulating and block flowing of medium.
At present, butterfly valve on market, it comprises butterfly plate, is provided with valve body and the valve shaft for driving butterfly plate to rotate of round cavity, the inner chamber of valve body is in radially having axis hole, valve shaft is fixedly connected with butterfly plate through axis hole, the inner chamber of valve body coordinates the path that forms switching with butterfly plate, by valve shaft is rotated, drive butterfly plate to rotate, and reaches the object that opens and closes or regulate.This butterfly valve, although cover one deck ceramic layer thereon in order to protect valve shaft, it is rectangular-shaped that ceramic layer is generally; in the process that opens and closes or regulate at butterfly valve; fluid is larger to the impact force of ceramic layer, shortens valve shaft working life, and then shortens butterfly valve whole service life.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of impact force little, the butterfly valve of long service life.
For achieving the above object, the utility model provides following technological scheme: a kind of butterfly valve, comprise butterfly plate, be provided with valve body and the valve shaft for driving butterfly plate to rotate of round cavity, the inner chamber of described valve body is in radially offering axis hole, described valve shaft is fixedly connected with butterfly plate through axis hole, the inner chamber of described valve body coordinates the path that forms switching with butterfly plate, described valve shaft is coated with ceramic layer, described ceramic layer comprises epimere, stage casing and the hypomere setting gradually, and the relative epimere in described stage casing, hypomere are sunk structure setting.
By adopting technique scheme, epimere, hypomere are raised structures setting with respect to stage casing, for the fixing fixed block of valve shaft and butterfly plate reserves sufficient space, guarantee that valve shaft can firmly be fixedly connected with butterfly plate, the stage casing of ceramic layer is sunk structure with respect to epimere, hypomere, has reduced the shock surface of fluid to ceramic layer, thereby has reduced the impact force that valve shaft is subject to, extend valve shaft working life, and then extend butterfly valve whole service life.
This use is novel to be further set to: described stage casing is evagination is circular-arcly close to valve shaft setting, and epimere, hypomere are cubic setting and are socketed on valve shaft, and the diameter in described stage casing is less than the length of side of epimere, hypomere.
By adopting technique scheme, because stage casing is circular-arc streamlined, further reduced the impact force of fluid to valve shaft, extend butterfly valve whole service life.
The utility model is further set to: described epimere, the ceramic layer of hypomere are equipped with half round edge.
By adopting technique scheme, because epimere, hypomere are streamlined, further reduced the impact force of fluid to valve shaft, extend butterfly valve whole service life.
The utility model is further set to: described ceramic layer integral body is glued on valve shaft, and described epimere, hypomere all have the screw for reinforced ceramic coating, and described epimere, hypomere are fixedly connected with valve shaft by the bolt in screw.
By adopting technique scheme, make the more solid and reliable of ceramic layer laminating.
This use is novel to be further set to: described bolt consists of pottery.
By adopting technique scheme, easy being corroded property flow-induced corrosion after having eliminated that metal-made bolt is long-term and using, further, corrosive fluid enters in ceramic layer by screw, and the shortcoming of corrosion valve shaft, fixed block and butterfly plate, protects valve shaft all sidedly.
Accompanying drawing explanation
Fig. 1 is the utility model butterfly valve embodiment's structural representation;
Fig. 2 is ceramic layer schematic diagram on the utility model butterfly valve embodiment's valve shaft;
Fig. 3 is the utility model butterfly valve embodiment's bolt schematic diagram.
Description of reference numerals: 1, valve body; 2, butterfly plate; 3, valve shaft; 4, ceramic layer; 41, epimere; 42, stage casing; 43, hypomere; 5, bolt.
Embodiment
Referring to figs. 1 through 3 couples of the utility model butterfly valve embodiments, be described further.
A kind of butterfly valve, comprise butterfly plate 2, be provided with valve body 1 and the valve shaft 3 for driving butterfly plate 2 to rotate of round cavity, the inner chamber of valve body 1 is in radially offering axis hole, valve shaft 3 is fixedly connected with butterfly plate 2 through axis hole, the inner chamber of valve body 1 coordinates the path that forms switching with butterfly plate 2, valve shaft 3 is coated with ceramic layer 4, and ceramic layer 4 comprises that the epimere 41, stage casing 42 setting gradually epimere 41 relative to hypomere 43， stage casing 42, hypomere 43 are sunk structure setting.Epimere 41, hypomere 43 are raised structures setting with respect to stage casing 42, for fixing valve shaft 3 and the fixed block of butterfly plate 2 reserve sufficient space, guarantee that valve shaft 3 can firmly be fixedly connected with butterfly plate 2, the stage casing 42 of ceramic layer 4 is sunk structure with respect to epimere 41, hypomere 43, reduced the shock surface of fluid to ceramic layer 4, thereby reduced the impact force that valve shaft 3 is subject to, extended 3 working lifes of valve shaft, and then extend butterfly valve whole service life.
The circular-arc valve shaft 3 of being close to that stage casing 42 is evagination arranges, and epimere 41, hypomere 43 are cubic setting and are socketed on valve shaft 3, and the diameter in described stage casing 42 is less than the length of side of epimere 41, hypomere 43.Because stage casing 42 is circular-arc streamlined, further reduced the impact force of fluid to valve shaft 3, extend butterfly valve whole service life.
The ceramic layer 4 of epimere 41, hypomere 43 is equipped with half round edge.Because epimere 41, hypomere 43 are streamlined, further reduced the impact force of fluid to valve shaft 3, extend butterfly valve whole service life.
Ceramic layer 4 integral body are glued on valve shaft 3, and epimere 41, hypomere 43 all have the screw for reinforced ceramic coating 4, and epimere 41, hypomere 43 are fixedly connected with valve shaft 3 by the bolt 5 in screw, make the more solid and reliable of ceramic layer 4 laminatings.
Claims (5)
1. a butterfly valve, comprise butterfly plate, be provided with valve body and the valve shaft for driving butterfly plate to rotate of round cavity, the inner chamber of described valve body is in radially offering axis hole, described valve shaft is fixedly connected with butterfly plate through axis hole, the inner chamber of described valve body coordinates the path that forms switching with butterfly plate, described valve shaft is coated with ceramic layer, it is characterized in that: described ceramic layer comprises epimere, stage casing and the hypomere setting gradually, and the relative epimere in described stage casing, hypomere are sunk structure setting.
2. butterfly valve according to claim 1, is characterized in that: described stage casing is evagination is circular-arcly close to valve shaft setting, and epimere, hypomere are cubic setting and are socketed on valve shaft, and the diameter in described stage casing is less than the length of side of epimere, hypomere.
3. butterfly valve according to claim 1 and 2, is characterized in that: described epimere, the ceramic layer of hypomere are equipped with half round edge.
4. butterfly valve according to claim 1 and 2, is characterized in that: described ceramic layer integral body is glued on valve shaft, and described epimere, hypomere all have the screw for reinforced ceramic coating, and described epimere, hypomere are fixedly connected with valve shaft by the bolt in screw.
5. butterfly valve according to claim 1 and 2, is characterized in that: described bolt consists of pottery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320461809.5U CN203395205U (en) | 2013-07-30 | 2013-07-30 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320461809.5U CN203395205U (en) | 2013-07-30 | 2013-07-30 | Butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395205U true CN203395205U (en) | 2014-01-15 |
Family
ID=49906738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320461809.5U Expired - Fee Related CN203395205U (en) | 2013-07-30 | 2013-07-30 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107110376A (en) * | 2014-12-19 | 2017-08-29 | 大陆汽车有限责任公司 | Valve gear in motor vehicle |
-
2013
- 2013-07-30 CN CN201320461809.5U patent/CN203395205U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107110376A (en) * | 2014-12-19 | 2017-08-29 | 大陆汽车有限责任公司 | Valve gear in motor vehicle |
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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 |
Granted publication date: 20140115 Termination date: 20140730 |
|
| EXPY | Termination of patent right or utility model |