CN201377597Y - Butterfly valve limiting and locking device - Google Patents
Butterfly valve limiting and locking device Download PDFInfo
- Publication number
- CN201377597Y CN201377597Y CN200920089636U CN200920089636U CN201377597Y CN 201377597 Y CN201377597 Y CN 201377597Y CN 200920089636 U CN200920089636 U CN 200920089636U CN 200920089636 U CN200920089636 U CN 200920089636U CN 201377597 Y CN201377597 Y CN 201377597Y
- Authority
- CN
- China
- Prior art keywords
- fan
- sector
- butterfly valve
- rear end
- end cover
- 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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- Lift Valve (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The utility model discloses a butterfly valve limiting and locking device, comprising a rear end cover arranged on a valve body, and a lower valve shaft which is arranged in a locating hole of the rear end cover in a sliding fit way; a sector convex plate is arranged at the lower end surface of the lower valve shaft, a sector groove structure is arranged at the bottom part of the locating hole of the rear end cover, and the sector convex plate on the lower end surface of the lower valve shaft is extended into the sector groove structure; the sector angle of the sector groove is more than the sector angle of the sector convex plate, and a sector locking block is movably arranged in the sector groove. The butterfly valve limiting and locking device has the advantages that a butterfly valve driving mechanism can be maintained or replaced without draining mediums in the pipeline in an on-line way, thereby greatly improving the on-line operating efficiency and maintaining efficiency of the pipeline and reducing the maintaining cost and labor intensity.
Description
Technical field
The utility model relates to butterfly valve, especially relates to butterfly valve limitation locking device.
Background technique
Butterfly valve applies in the various pipelines widely to play the effect of switching pipeline internal medium.Butterfly valve in use usually need repair or replace because of driving mechanism breaks down.At present to after the maintenance of butterfly valve driving mechanism or changing the medium of all wanting in the pipeline of emptying butterfly valve place, do not have to operate under the medium situation ensuring safety in assurance, but so not only wasted time and energy but also directly influenced ordinary production.
The model utility content
The utility model purpose be to provide a kind of can the online butterfly valve limitation locking device that the butterfly valve driving mechanism is keeped in repair, changes.
For achieving the above object, the utility model can be taked following technical proposals:
Butterfly valve limitation locking device described in the utility model, it comprises the rear end cover that is arranged on the valve body, is arranged on lower valve shaft in the described rear end cover positioning hole with sliding matching mode; Be provided with fan-shaped boss in the lower end surface of described lower valve shaft; The bottom of rear end cover positioning hole is for offering the scalloped recess structure, and the fan-shaped boss on the described lower valve shaft lower end surface extends in the described scalloped recess; The fan angle of scalloped recess is greater than the fan angle of fan-shaped boss; In scalloped recess, be movably set with fan-shaped clamping block.
The fan angle of described scalloped recess is 225 °; The fan angle of fan-shaped boss is 135 °; The fan angle of fan-shaped clamping block is 90 °.
The utility model advantage is need not the interior medium of emptying pipe and can online the butterfly valve driving mechanism be repaired or replaced, and has improved the operational efficiency and the maintenance efficiency of online pipeline greatly, has reduced maintenance expenses and labor intensity.During the online proper functioning of butterfly valve, described fan-shaped clamping block is taken out in the scalloped recess of rear end cover positioning hole bottom, therefore, the fan-shaped boss on the lower valve shaft lower end surface can rotate freely by 90 ° of sector regions in scalloped recess, with the unlatching that realizes butterfly valve plate or close; While has also prevented reaching a standard of valve plate or has crossed and open.Dismantle the butterfly valve driving mechanism when repairing or replacing when needs, fan-shaped clamping block placed valve plate to be locked in the scalloped recess on standard-sized sheet or the complete shut-down position, with the circulation that keeps the pipeline medium with block; Thereby realize online the butterfly valve driving mechanism being keeped in repair, change purpose.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of lower valve shaft described in the utility model.
Fig. 3 is the structural representation of rear end cover described in the utility model.
Fig. 4 is the structural representation of fan-shaped clamping block described in the utility model.
Embodiment
As shown in the figure, butterfly valve limitation locking device described in the utility model, it comprises the rear end cover 1 that is arranged on the valve body, is arranged on lower valve shaft 2 in described rear end cover 1 positioning hole with sliding matching mode; Be provided with fan-shaped boss 3 in the lower end surface of described lower valve shaft 2; The bottom of rear end cover 1 positioning hole is for offering scalloped recess 4 structures, and the fan-shaped boss 3 on described lower valve shaft 2 lower end surfaces extends in the described scalloped recess 4; In scalloped recess 4, be movably set with fan-shaped clamping block 5; The fan angle of described fan-shaped clamping block 5 is 90 °, and the fan angle of scalloped recess 4 is 225 °, and the fan angle of fan-shaped boss 3 is 135 °; For convenient fan-shaped clamping block 5 takes out or drops into, on fan-shaped clamping block 5, offer the silk hole 6 of matching with lifting bolt in scalloped recess 4; Because when the butterfly valve driving mechanism of dismantling repairs or replaces, rear end cover 1 will be subjected to may rotating skew from the effect of lower valve shaft 2 moments, therefore can on rear end cover 1, offer a positioning pin hole 7 and locate by bearing pin.
Claims (2)
1, a kind of butterfly valve limitation locking device, it comprises the rear end cover (1) that is arranged on the valve body, is arranged on the interior lower valve shaft (2) of described rear end cover (1) positioning hole with sliding matching mode; It is characterized in that: be provided with fan-shaped boss (3) in the lower end surface of described lower valve shaft (2); The bottom of rear end cover (1) positioning hole is for offering scalloped recess (4) structure, and the fan-shaped boss (3) on described lower valve shaft (2) lower end surface extends in the described scalloped recess (4); The fan angle of scalloped recess (4) is greater than the fan angle of fan-shaped boss (3); In scalloped recess (4), be movably set with fan-shaped clamping block (5).
2, butterfly valve limitation locking device according to claim 1, it is characterized in that: the fan angle of described scalloped recess (4) is 225 °; The fan angle of described fan-shaped boss (3) is 135 °; The fan angle of described fan-shaped clamping block (5) is 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920089636U CN201377597Y (en) | 2009-04-16 | 2009-04-16 | Butterfly valve limiting and locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920089636U CN201377597Y (en) | 2009-04-16 | 2009-04-16 | Butterfly valve limiting and locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201377597Y true CN201377597Y (en) | 2010-01-06 |
Family
ID=41517705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920089636U Expired - Fee Related CN201377597Y (en) | 2009-04-16 | 2009-04-16 | Butterfly valve limiting and locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201377597Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032589A (en) * | 2012-12-12 | 2013-04-10 | 中国航天科技集团公司第六研究院第十一研究所 | Electric explosion isolation valve buffered by single axis band |
| CN110107598A (en) * | 2019-06-12 | 2019-08-09 | 广州泰科节能环保科技有限公司 | A kind of angle bearing |
| CN112762179A (en) * | 2021-01-14 | 2021-05-07 | 天工阀门集团有限公司 | Ultra-low temperature butterfly valve convenient to online maintenance |
-
2009
- 2009-04-16 CN CN200920089636U patent/CN201377597Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032589A (en) * | 2012-12-12 | 2013-04-10 | 中国航天科技集团公司第六研究院第十一研究所 | Electric explosion isolation valve buffered by single axis band |
| CN103032589B (en) * | 2012-12-12 | 2014-10-22 | 中国航天科技集团公司第六研究院第十一研究所 | Electric explosion isolation valve buffered by single axis band |
| CN110107598A (en) * | 2019-06-12 | 2019-08-09 | 广州泰科节能环保科技有限公司 | A kind of angle bearing |
| CN112762179A (en) * | 2021-01-14 | 2021-05-07 | 天工阀门集团有限公司 | Ultra-low temperature butterfly valve convenient to online maintenance |
| CN112762179B (en) * | 2021-01-14 | 2021-07-27 | 天工阀门集团有限公司 | Ultra-low temperature butterfly valve convenient to online maintenance |
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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: 20100106 Termination date: 20150416 |
|
| EXPY | Termination of patent right or utility model |