CN2929381Y - Connector for regulating valve rod and valve core - Google Patents
Connector for regulating valve rod and valve core Download PDFInfo
- Publication number
- CN2929381Y CN2929381Y CN 200620109501 CN200620109501U CN2929381Y CN 2929381 Y CN2929381 Y CN 2929381Y CN 200620109501 CN200620109501 CN 200620109501 CN 200620109501 U CN200620109501 U CN 200620109501U CN 2929381 Y CN2929381 Y CN 2929381Y
- Authority
- CN
- China
- Prior art keywords
- spool
- valve rod
- valve stem
- valve
- utility
- 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 - Lifetime
Links
- 230000001105 regulatory effect Effects 0.000 title claims description 7
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Abstract
The utility model discloses a connecting device of a valve stem and a spool of an adjustable valve, which comprises a valve stem (1), a spool (2), and a cap nut (3), wherein the spool (2) is provided with a hole, the lower portion of the valve stem (1) is provided with a screw thread, and the screw thread on the valve stem (1) crosses the hole on the spool (2) and is secured on the spool (2) via the cap nut (3). A gap of 0.08 - 0.15 mm is left between the valve stem (1) and the spool (2), which avoids the inflexibility caused by the valve stem and the stool having different centers. The valve stem (1) and the cap nut (3) are connected with each other via weld. The utility model has simple and practical structure, which solve the problem of breakage of the valve stem, thereby greatly extending the service life of the adjustable valve.
Description
Technical field:
The utility model belongs to the connection set of a kind of valve rod and spool.
Technical background:
At present, conventional screw thread and the cylindrical pins used of regulating valve rod and spool is connected and fixed, and there are two defectives in this Placement: one, such valve is many works under High Temperature High Pressure, unavoidably can cause weakening of valve rod intensity; Two, use cylindrical pins no doubt can prevent that valve rod from screwing out in spool, but the intensity of valve rod at the pin-and-hole place greatly reduces, also form stress and concentrate at this place.Two kinds of reason superpositions cause valve rod to rupture at the pin-and-hole place easily.And such valve is applied on the critical workflow of production more, and its fault takes place frequently and can cause direct influence to production.
Summary of the invention:
The purpose of this utility model is: the connection set of a kind of regulating valve rod and valve core chamber is provided, solves the valve stem crack problem, prolonged the working life of modulating valve greatly.
The utility model is achieved in that
It is made up of valve rod (1), spool (2), nut (3), and spool (2) is gone up porose, and screw thread is arranged at valve rod (1) bottom, and valve rod (1) threaded end passes the hole on the spool (2), is anchored on the spool (2) by nut (3).Leave the gap of 0.08 ~ 0.15mm between valve rod (1) and the spool (2).Valve rod (1) is welded to connect with nut (3).
The utility model compared with prior art has simple and practically, solves the valve stem crack problem, the advantage that prolongs the working life of modulating valve greatly.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
Embodiment:
Embodiment of the present utility model:
Go up perforation at spool (2), the car silk forms screw thread (5) in valve rod (1) bottom.Valve rod (1) threaded end passes the hole on the spool (2), is anchored on the spool (2) by two nuts (3).Leave the gap of 0.08 ~ 0.15mm between valve rod (1) and the spool (2), avoid valve rod and spool to cause bite because of decentraction.Valve rod (1) is connected by soldering point (4) with nut (3).
Claims (3)
1, the connection set of a kind of regulating valve rod and spool, it is made up of valve rod (1), spool (2), nut (3), it is characterized in that: spool (2) is gone up porose, screw thread is arranged at valve rod (1) bottom, valve rod (1) threaded end passes the hole on the spool (2), is anchored on the spool (2) by nut (3).
2, the connection set of regulating valve rod according to claim 1 and spool is characterized in that: the gap of leaving 0.08～0.15mm between valve rod (1) and the spool (2).
3, the connection set of regulating valve rod according to claim 1 and spool is characterized in that: valve rod (1) is welded to connect with nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620109501 CN2929381Y (en) | 2006-07-07 | 2006-07-07 | Connector for regulating valve rod and valve core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620109501 CN2929381Y (en) | 2006-07-07 | 2006-07-07 | Connector for regulating valve rod and valve core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929381Y true CN2929381Y (en) | 2007-08-01 |
Family
ID=38307763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620109501 Expired - Lifetime CN2929381Y (en) | 2006-07-07 | 2006-07-07 | Connector for regulating valve rod and valve core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929381Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016838A (en) * | 2012-11-30 | 2013-04-03 | 吴忠仪表有限责任公司 | Anti-loose structure for connection of spool and valve rod |
-
2006
- 2006-07-07 CN CN 200620109501 patent/CN2929381Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016838A (en) * | 2012-11-30 | 2013-04-03 | 吴忠仪表有限责任公司 | Anti-loose structure for connection of spool and valve rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070801 |
|
| EXPY | Termination of patent right or utility model |