CN204004675U - Electric device for valve valve rod cover structure - Google Patents
Electric device for valve valve rod cover structure Download PDFInfo
- Publication number
- CN204004675U CN204004675U CN201420297590.4U CN201420297590U CN204004675U CN 204004675 U CN204004675 U CN 204004675U CN 201420297590 U CN201420297590 U CN 201420297590U CN 204004675 U CN204004675 U CN 204004675U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- rod cover
- valve
- electric device
- adjusting ring
- 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 electric device for valve valve rod cover structure, comprise case lid b, bearing a, bearing b, live axle, Stem Mut, valve rod, vavle shelf and casing, it is characterized in that it also comprises valve rod cover seat, valve rod cover Adjusting ring and valve rod cover cap, described valve rod cover seat is installed on case lid b by screw c, described valve rod cover Adjusting ring is threaded connection and is installed on valve rod cover seat, and described valve rod cover cap is threaded connection and is installed on valve rod cover Adjusting ring.Superiority: the utility model adopts engineering plastics ABS as the material of valve rod cover, and its outdoor usability is good, can corrosion not come off, and improves the reliability that electric device for valve is used out of doors, has reduced the inconvenience bringing owing to producing the valve rod cover of different length.
Description
(1) technical field:
The utility model belongs to electric device for valve technical field, the valve rod cover structure while particularly relating to a kind of electric device for valve gate valve.
(2) background technique:
At present, electric device for valve is that a kind of and valve are used in conjunction with, the electromechanical integration industry equipment of control valve opening and closing.During electric device for valve action, drive gate valve rod to do straight line motion.The structure of valve rod cover is not subject to the effects such as dust pollution, moisture corrosion for the protection of valve rod.Therefore, the valve rod cover of electric device for valve is the indispensable important component part of electric device for valve.Because site environment more complicated and gate valve rod length differ, thus the valve rod cover structure of electric device for valve should be easy for installation, can adapt to multiple shaft length and valve rod is had to certain protectiveness.
Electric device for valve valve rod cover in known technology is installed and structure is shown in Fig. 1, valve rod cover 1 is threaded connection and is arranged on case lid a2, case lid a2 is mounted on casing 9 by screw a10, bearing a3, bearing b4 is arranged on live axle 5 by interference fit, Stem Mut 6 is arranged on live axle 5 by spline joint, valve rod 7 is threaded connection and is arranged on Stem Mut 6, vavle shelf 8 is connected and installed on casing 9 by screw b11, when electric device for valve moves, live axle 5 drives Stem Mut 6 to rotate, then Stem Mut 6 band ovable valve stems 7 are done straight line motion, because valve rod 7 communicates with external environment, so increase valve rod cover 1 as protective measure.
But there is following shortcoming in this structure:
1, because valve rod cover 1 is that iron and steel is welded, and electric device for valve major part is all used out of doors, so valve rod cover can produce corrosion, when valve rod cover 1 inwall iron rust comes off when Stem Mut 6 and valve rod 7 screw threads screw place, cause Stem Mut 6 and valve rod 7 " rust is dead " state, electric device for valve cannot normally be controlled valve rod 7 unlatching or throttle downs.
2, because valve rod cover 1 completes once welding, its length will be fixed, and cannot be increased or reduce, but shaft length is varied, if it is unrealistic to make one by one the valve rod cover of all lengths.
(3) model utility content:
The purpose of this utility model is to provide a kind of electric device for valve valve rod cover structure, its outdoor better performances, and length is adjustable, has solved the technical problem existing in known technology.
The technical solution of the utility model: electric device for valve valve rod cover structure, comprise case lid b, bearing a, bearing b, live axle, Stem Mut, valve rod, vavle shelf and casing, case lid b is arranged on casing by screw a, the inner ring of the inner ring of bearing a and bearing b respectively with live axle interference fit, the outer ring of the outer ring of bearing a and bearing b respectively with casing interference fit, casing is arranged on vavle shelf by screw b, Stem Mut is arranged on live axle by spline joint, valve rod is threaded connection and is arranged on Stem Mut, it is characterized in that it also comprises valve rod cover seat, valve rod cover Adjusting ring and valve rod cover cap, described valve rod cover seat is installed on case lid b by screw c, described valve rod cover Adjusting ring is threaded connection and is installed on valve rod cover seat, described valve rod cover cap is threaded connection and is installed on valve rod cover Adjusting ring.
Valve rod cover Adjusting ring 13 described above be one, two or more, between valve rod cover Adjusting ring, be threaded connection to combine and adjust height.
Valve rod cover seat described above is ABS engineering plastics valve rod cover seat.
Valve rod cover Adjusting ring described above is ABS engineering plastics valve rod cover Adjusting ring.
Valve rod cover cap described above is ABS engineering plastics valve rod cover cap.
Advantage and the good effect that the utlity model has are: the utility model adopts engineering plastics ABS as the material of valve rod cover, its outdoor usability is good, can corrosion not come off, solved in known technology valve rod cover because corrosion causes that electric device for valve cannot normally be used and problem that cannot regulating valve stem cover length.According to the stackable a plurality of valve rod cover Adjusting rings of the height of valve rod, in this way the height of valve rod cover is made to adjustable form, improve the reliability that electric device for valve is used out of doors, reduced the inconvenience bringing owing to producing the valve rod cover of different length.
(4) accompanying drawing explanation:
Fig. 1 is known technology structural representation.
Fig. 2 is the structural representation of the related electric device for valve valve rod cover of the utility model structure.
Wherein, 1 is valve rod cover, and 2 is case lid a, and 3 is bearing a, and 4 is bearing b, and 5 is live axle, 6 is Stem Mut, and 7 is valve rod, and 8 is vavle shelf, and 9 is casing, and 10 is screw a, and 11 is screw b, 12 is valve rod cover seat, and 13 is valve rod cover Adjusting ring, and 14 is valve rod cover cap, and 15 is screw c, and 16 is case lid b.
(5) embodiment:
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to describe in detail.
Embodiment: electric device for valve valve rod cover structure (seeing Fig. 2), comprise case lid b16, bearing a3, bearing b4, live axle 5, Stem Mut 6, valve rod 7, vavle shelf 8 and casing 9, case lid b16 is arranged on casing 9 by screw a10, the inner ring of the inner ring of bearing a3 and bearing b4 respectively with live axle 5 interference fit, the outer ring of the outer ring of bearing a3 and bearing b4 respectively with casing 9 interference fit, casing 9 is arranged on vavle shelf 8 by screw b11, Stem Mut 6 is arranged on live axle 5 by spline joint, valve rod 7 is threaded connection and is arranged on Stem Mut 6, it is characterized in that it also comprises valve rod cover seat 12, valve rod cover Adjusting ring 13 and valve rod cover cap 14, described valve rod cover seat 12 is installed on case lid b16 by screw c15, described valve rod cover Adjusting ring 13 is threaded connection and is installed on valve rod cover seat 12, described valve rod cover cap 14 is threaded connection and is installed on valve rod cover Adjusting ring 13.
Valve rod cover Adjusting ring 13 described above is two, is threaded connection to combine to adjust height between valve rod cover Adjusting ring 13.
Valve rod cover seat 12 described above is ABS engineering plastics valve rod cover seat.
Valve rod cover Adjusting ring 13 described above is ABS engineering plastics valve rod cover Adjusting ring.
Valve rod cover cap 14 described above is ABS engineering plastics valve rod cover cap.
Claims (5)
1. electric device for valve valve rod cover structure, comprise case lid b, bearing a, bearing b, live axle, Stem Mut, valve rod, vavle shelf and casing, case lid b is arranged on casing by screw a, the inner ring of the inner ring of bearing a and bearing b respectively with live axle interference fit, the outer ring of the outer ring of bearing a and bearing b respectively with casing interference fit, casing is arranged on vavle shelf by screw b, Stem Mut is arranged on live axle by spline joint, valve rod is threaded connection and is arranged on Stem Mut, it is characterized in that it also comprises valve rod cover seat, valve rod cover Adjusting ring and valve rod cover cap, described valve rod cover seat is installed on case lid b by screw c, described valve rod cover Adjusting ring is threaded connection and is installed on valve rod cover seat, described valve rod cover cap is threaded connection and is installed on valve rod cover Adjusting ring.
2. electric device for valve valve rod cover structure according to claim 1, it is characterized in that described valve rod cover Adjusting ring be one, two or more, between valve rod cover Adjusting ring, be threaded connection to combine and adjust height.
3. according to electric device for valve valve rod cover structure described in claim 1 or 2, it is characterized in that described valve rod cover seat is ABS engineering plastics valve rod cover seat.
4. electric device for valve valve rod cover structure according to claim 1, is characterized in that described valve rod cover Adjusting ring is ABS engineering plastics valve rod cover Adjusting ring.
5. electric device for valve valve rod cover structure according to claim 1, is characterized in that described valve rod cover cap is ABS engineering plastics valve rod cover cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420297590.4U CN204004675U (en) | 2014-06-06 | 2014-06-06 | Electric device for valve valve rod cover structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420297590.4U CN204004675U (en) | 2014-06-06 | 2014-06-06 | Electric device for valve valve rod cover structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004675U true CN204004675U (en) | 2014-12-10 |
Family
ID=52044678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420297590.4U Expired - Fee Related CN204004675U (en) | 2014-06-06 | 2014-06-06 | Electric device for valve valve rod cover structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204004675U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895189A (en) * | 2015-12-18 | 2017-06-27 | 纽威阀门有限公司 | A kind of motor-driven valve for refrigeration system |
-
2014
- 2014-06-06 CN CN201420297590.4U patent/CN204004675U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895189A (en) * | 2015-12-18 | 2017-06-27 | 纽威阀门有限公司 | A kind of motor-driven valve for refrigeration system |
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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: 20141210 Termination date: 20170606 |