CN204226689U - The single-seat adjusting valve that a kind of join strength is high - Google Patents
The single-seat adjusting valve that a kind of join strength is high Download PDFInfo
- Publication number
- CN204226689U CN204226689U CN201420498775.1U CN201420498775U CN204226689U CN 204226689 U CN204226689 U CN 204226689U CN 201420498775 U CN201420498775 U CN 201420498775U CN 204226689 U CN204226689 U CN 204226689U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- valve rod
- seat
- taper hole
- 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 the single-seat adjusting valve that a kind of join strength is high, comprise valve body, valve seat, spool, valve gap, valve rod, connecting thread, taper hole locating face, spot-welded point, described valve inner is fixedly installed valve seat, and valve gap is connected with valve body fastening piece; Described spool and valve rod link together through valve gap, and between spool and valve rod bottom-up be connected with in turn connecting thread, taper hole coordinate, spot-welded point.Valve rod spool of the present utility model adopts the taper hole location be threaded with 60 °, decrease the space between valve rod and spool, enhance the concentricity between valve rod and spool, prevent valve rod and spool from loosening additionally by spot-welded point, enhance the join strength of valve rod and spool.
Description
Technical field
The utility model relates to control valve field, is specially the single-seat adjusting valve that a kind of join strength is high.
Background technique
Control valve is the terminal control original paper of automatic control system, and single-seat adjusting valve is most widely used one, and direct single seat control valve is made up of parts such as valve body, valve seat, spool, guide sleeve, valve gap, valve rod and fillers.The connecting means of spool and valve rod generally adopts the pin again that is threaded to fix, and is provided with guide sleeve, play the guiding role for spool moves up and down between valve gap and valve body.A spool and a valve seat is only had in the valve body of direct single seat control valve.Feature is that leakage rate is little, is easy to ensure sealing.The active force of medium to spool is large simultaneously, namely unbalanced force is large, particularly even more serious in High Pressure Difference, bigbore situation, can determine that from above spool bears the effect of various power by valve rod and medium, the connection part of spool and valve rod is weak link, the high then overall intensity of connection part intensity is all right, otherwise this connection part can be very easy to be damaged and cause that valve rod is bending even to rupture.Thus cause the serious accident of production and danger.
Model utility content
The technical problem that the utility model solves is the single-seat adjusting valve providing a kind of join strength high, to solve the problem.
The technical problem that the utility model solves realizes by the following technical solutions:
The single-seat adjusting valve that join strength is high, comprise valve body, valve seat, spool, valve gap, valve rod, connecting thread, taper hole cooperation, spot-welded point, described valve inner is fixedly installed valve seat, and valve gap is connected with valve body fastening piece; Described spool and valve rod link together through valve gap, and between spool and valve rod bottom-up be connected with in turn connecting thread, taper hole coordinate, spot-welded point.
As preferably, described spool and valve rod are not the structures of one, and valve rod is by be with movable valve plug to do function that upper and lower straight line motion completes the closedown of valve, unlatching and adjust flux pressure together with valve seat.
As preferably, described spool and valve rod adopt the taper hole location fit of 60 °, make chamfered transition can not produce stress and concentrate, be also the contact of uniform face simultaneously, do not have connection weakness, improve surface roughness quality and quality of fit.
As preferably, described spool and valve rod adopt spot-welded point to loosen to prevent valve rod and spool.
As preferably, described stem bottom screw thread is connected with the screw of spool, and the fitting surface taper hole of valve rod and spool is located, and join strength ensures by the close contact in taper hole face.
Valve rod spool of the present utility model adopts the taper hole location be threaded with 60 °, decrease the space between valve rod and spool, enhance the concentricity between valve rod and spool, prevent valve rod and spool from loosening additionally by spot-welded point, enhance the join strength of valve rod and spool.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is valve rod spool schematic diagram of the present utility model.
Embodiment
In order to make actualizing technology means of the present utility model, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, set forth the utility model further.
As shown in Figure 1-2, the single-seat adjusting valve that a kind of join strength is high, comprise valve body 1, valve seat 2, spool 3, valve gap 4, valve rod 5, connecting thread 6, taper hole locating face 7, spot-welded point 8, described valve body 1 inside is fixedly installed valve seat 2, and valve gap 4 is connected with fastening piece with valve body 1; Described spool 3 and valve rod 5 link together through valve gap 4, and bottom-uply between spool 3 and valve rod 5 are connected with connecting thread 6, taper hole locating face 7, spot-welded point point 8 in turn.
As preferably, described spool 3 and valve rod 5 adopt the taper hole location fit of 60 °, make chamfered transition can not produce stress and concentrate, be also the contact of uniform face simultaneously, do not have connection weakness, improve surface roughness quality and quality of fit.
As preferably, described spool 3 and valve rod 5 adopt spot-welded point 8 to loosen to prevent valve rod 5 and spool 3.
As preferably, described spool 3 and valve rod 5 are not the structures of one, and valve rod 5 does by band movable valve plug 3 function that upper and lower straight line motion completes the closedown of valve, unlatching and adjust flux pressure together with valve seat 2.
As preferably, be connected with the screw of screw thread with spool 3 bottom described valve rod 5, the fitting surface taper hole of valve rod 5 and spool 3 is located, and join strength ensures by the close contact in taper hole face.
Valve rod spool of the present utility model adopts the taper hole location be threaded with 60 °, decrease the space between valve rod and spool, enhance the concentricity between valve rod and spool, prevent valve rod and spool from loosening additionally by spot-welded point, enhance the join strength of valve rod and spool.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.Claimed scope of the present utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. the single-seat adjusting valve that a join strength is high, comprise valve body, valve seat, spool, valve gap, valve rod, connecting thread, taper hole locating face, spot-welded point, it is characterized in that: described valve inner is fixedly installed valve seat, and valve gap is connected with valve body fastening piece; Described spool and valve rod link together through valve gap, and bottom-uply between spool and valve rod are connected with connecting thread, taper hole locating face, spot-welded point in turn.
2. the single-seat adjusting valve that a kind of join strength according to claim 1 is high, is characterized in that: described spool and valve rod are not the structures of one.
3. the single-seat adjusting valve that a kind of join strength according to claim 1 is high, is characterized in that: described spool and valve rod adopt the taper hole location be threaded with 60 °.
4. the single-seat adjusting valve that a kind of join strength according to claim 1 is high, is characterized in that: described spool and valve rod adopt spot-welded point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498775.1U CN204226689U (en) | 2014-09-01 | 2014-09-01 | The single-seat adjusting valve that a kind of join strength is high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498775.1U CN204226689U (en) | 2014-09-01 | 2014-09-01 | The single-seat adjusting valve that a kind of join strength is high |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226689U true CN204226689U (en) | 2015-03-25 |
Family
ID=52924788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420498775.1U Expired - Fee Related CN204226689U (en) | 2014-09-01 | 2014-09-01 | The single-seat adjusting valve that a kind of join strength is high |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204226689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499833A (en) * | 2016-11-18 | 2017-03-15 | 扬中市阀门厂有限公司 | A kind of Novel supercritical unit pressure-reducing valve closure member |
-
2014
- 2014-09-01 CN CN201420498775.1U patent/CN204226689U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499833A (en) * | 2016-11-18 | 2017-03-15 | 扬中市阀门厂有限公司 | A kind of Novel supercritical unit pressure-reducing valve closure member |
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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: 20150325 Termination date: 20170901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |