CN201100432Y - Butterfly valve with maintenance lock machine - Google Patents
Butterfly valve with maintenance lock machine Download PDFInfo
- Publication number
- CN201100432Y CN201100432Y CNU2007200161013U CN200720016101U CN201100432Y CN 201100432 Y CN201100432 Y CN 201100432Y CN U2007200161013 U CNU2007200161013 U CN U2007200161013U CN 200720016101 U CN200720016101 U CN 200720016101U CN 201100432 Y CN201100432 Y CN 201100432Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve shaft
- butterfly
- shaft seat
- butterfly valve
- 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)
Abstract
The utility model relates to a butterfly valve which has a maintaining and locking mechanism, comprising a valve body, wherein a butterfly plate is arranged inside the valve body; the butterfly plate is connected with a valve shaft; two sides of the side wall outside the valve body are provided with valve shaft pedestal; the valve shaft is threaded through the valve shaft pedestal; a radial inner screw thread hole of the valve shaft pedestal is disposed on the valve shaft pedestal; a radial depression which is separately corresponded to the radial inner screw thread hole on the valve shaft pedestal when the butterfly valve is opened or closed is installed on the valve shaft; a locking bolt is screwed inside the radial inner screw thread hole on the valve shaft pedestal; and sealing ting is disposed between the locking bolt and the valve shaft pedestal. When the butterfly valve is used, if a power drive device has faults and is disassembled from the butterfly valve to maintain, the locking bolt inside the radial inner screw thread hole on the valve shaft pedestal can be screwed into the radial depression on the valve shaft before the power drive device is disassembled, and the locking valve shaft doesn't move and causes the opening and the closing situation of the butterfly valve is locked, thereby not influencing the normal transportation of the liquid in the pipeline.
Description
Technical field
The utility model relates to a kind of butterfly valve of dynamic drive unit, particularly a kind of maintenance locking framework of dynamic drive unit butterfly valve.
Background technique
Butterfly valve has valve body, and butterfly plate is arranged in the valve body, and butterfly plate is connected with valve shaft, some large-diameter butterfly valve is because the moment that opens and closes is bigger, valve shaft is connected with Power Drive Unit, and Power Drive Unit can drive the switching of butterfly valve, and Power Drive Unit also has the effect of locking to the open and-shut mode of butterfly valve.Butterfly valve with Power Drive Unit in use, Power Drive Unit breaks down sometimes, in order to eliminate the fault of Power Drive Unit, needs sometimes Power Drive Unit extractd from butterfly valve and keeps in repair.In the prior art, butterfly valve with Power Drive Unit does not keep in repair locking framework, when the butterfly valve with Power Drive Unit uses in fluid delivery pipeline, after extracing Power Drive Unit for some reason, the open and-shut mode of butterfly valve has lost locking, butterfly plate is under the impact of fluid in the pipeline, and butterfly valve can not keep original open and-shut mode, influences the normal conveying of fluid in the pipeline.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, propose a kind of extract Power Drive Unit from butterfly valve after, can keep the butterfly valve that keeps in repair locking framework that has of original open and-shut mode.
The utility model is realized with the following method.
Butterfly valve with maintenance locking framework has valve body, butterfly plate is arranged in the valve body, butterfly plate is connected with valve shaft, there is the valve shaft seat both sides of valve body outer side wall, valve shaft passes from the valve shaft seat, at the valve shaft seat valve shaft seat interior threaded hole is radially arranged, have on the valve shaft when the butterfly valve open and close respectively with the valve shaft seat on the corresponding radially pit of radially interior threaded hole, the valve shaft seat radially is rotary with lock(ing) bolt in the interior threaded hole, between lock(ing) bolt and the valve shaft seat seal ring is arranged.
The utility model in use, after if Power Drive Unit breaks down, Power Drive Unit is extractd when keeping in repair from butterfly valve, can be before extracing Power Drive Unit, the valve shaft seat radially the lock(ing) bolt in the interior threaded hole screw in the radially pit on the valve shaft, the locking valve shaft is motionless, makes the open and-shut mode of butterfly valve locked, does not influence the normal conveying of fluid in the pipeline.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is the main cross-sectional schematic with butterfly valve of maintenance locking framework;
Fig. 2 is that the A-A of Fig. 1 analyses and observe enlarged diagram.
Embodiment
Among Fig. 1, Fig. 2, butterfly valve with maintenance locking framework has valve body 1, valve plate 2 is arranged in the valve body, valve plate is connected with valve shaft 3, and there is valve shaft seat 4,5 both sides of valve body outer side wall, and valve shaft passes from the valve shaft seat, at the valve shaft seat valve shaft seat interior threaded hole 6 is radially arranged, have on the valve shaft when the butterfly valve open and close respectively with the valve shaft seat on the corresponding radially pit 7,8 of radially interior threaded hole, the valve shaft seat radially is rotary with lock(ing) bolt 9 in the interior threaded hole, between lock(ing) bolt and the valve shaft seat seal ring is arranged.
Claims (1)
1. one kind has the butterfly valve that keeps in repair locking framework, valve body is arranged, butterfly plate is arranged in the valve body, butterfly plate is connected with valve shaft, and there is the valve shaft seat both sides of valve body outer side wall, and valve shaft passes from the valve shaft seat, it is characterized in that: valve shaft seat interior threaded hole is radially arranged at the valve shaft seat, have on the valve shaft when the butterfly valve open and close respectively with the valve shaft seat on the corresponding radially pit of radially interior threaded hole, the valve shaft seat radially is rotary with lock(ing) bolt in the interior threaded hole, between lock(ing) bolt and the valve shaft seat seal ring is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200161013U CN201100432Y (en) | 2007-11-23 | 2007-11-23 | Butterfly valve with maintenance lock machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200161013U CN201100432Y (en) | 2007-11-23 | 2007-11-23 | Butterfly valve with maintenance lock machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201100432Y true CN201100432Y (en) | 2008-08-13 |
Family
ID=39936967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200161013U Expired - Fee Related CN201100432Y (en) | 2007-11-23 | 2007-11-23 | Butterfly valve with maintenance lock machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201100432Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397754A (en) * | 2019-08-14 | 2019-11-01 | 德维阀门铸造（苏州）股份有限公司 | A kind of floating ball valve handle fixation structure |
| JP2019210962A (en) * | 2018-05-31 | 2019-12-12 | 前澤工業株式会社 | Butterfly valve, braking method for valve rod included in butterfly valve, and fitting member |
-
2007
- 2007-11-23 CN CNU2007200161013U patent/CN201100432Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019210962A (en) * | 2018-05-31 | 2019-12-12 | 前澤工業株式会社 | Butterfly valve, braking method for valve rod included in butterfly valve, and fitting member |
| JP7136594B2 (en) | 2018-05-31 | 2022-09-13 | 前澤工業株式会社 | Butterfly valve, method for braking valve stem of butterfly valve, and fitting member |
| CN110397754A (en) * | 2019-08-14 | 2019-11-01 | 德维阀门铸造（苏州）股份有限公司 | A kind of floating ball valve handle fixation 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 |
Granted publication date: 20080813 Termination date: 20151123 |