CN2667265Y - Ball shape valve stem valve - Google Patents
Ball shape valve stem valve Download PDFInfo
- Publication number
- CN2667265Y CN2667265Y CN 200320128055 CN200320128055U CN2667265Y CN 2667265 Y CN2667265 Y CN 2667265Y CN 200320128055 CN200320128055 CN 200320128055 CN 200320128055 U CN200320128055 U CN 200320128055U CN 2667265 Y CN2667265 Y CN 2667265Y
- Authority
- CN
- China
- Prior art keywords
- valve
- spherical
- spool
- valve stem
- ball shape
- 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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- Taps Or Cocks (AREA)
- Lift Valve (AREA)
Abstract
The utility model relates to a ball shape valve stem valve, which mainly solves the problem of the friction drag and heavy wear when the prior ball shape valve stem valve opens and closes. The utility model is characterized in that a built-in valve stem 1 which upper side is in ball shape and connected with the valve core 3 is arranged in the valve body 2. The ball shape valve stem valve has a small friction drag when opening or closing the valve, and can avoid the leakage of the packing sealing effectively.
Description
Technical field:
The utility model relates to used valve, especially spherical valve stem valve door on oil field, chemical industry, building and the manufacturing gathering line field.
Background technique:
Valve is widely used in each department of national economy, it is a kind of universal machine product that has a large capacity and a wide range, it is mounted in valve in the various piping system, be used to control pressure, flow and the flow direction etc. of pipeline medium, because the difference of pressure, temperature, flow, physical property and the chemical property of medium, and the control requirement of system and usage requirement is different, so valve is of a great variety.Valve rod is a critical piece in the valve, and existing valve rod generally all adopts the cylinder shape belt packing seal, and this sealing configuration surface friction drag is big, opening and closing are all inconvenient, easily produce the seepage phenomenon during switch valve, though can filled again sealing, sealing effect is poor.
The model utility content:
For to overcome existing valve rod be cylindrical and stuffing box packing easily produces the deficiency of seepage phenomenon, the utility model provides a kind of spherical valve stem valve door, and this spherical valve stem valve door has surface friction drag when switch valve little and can effectively avoid packing seal easily to produce the characteristics of seepage.
The technical solution of the utility model is: spherical valve stem valve door comprises valve body, spool and valve seat, and valve body is built-in with the top that links to each other with spool and is spherical valve rod.
Above-mentioned spool can be shaft-like; Can be the flashboard shape; Can be spherical; The spherical outer surface of valve rod can have coating; Spool can have coating with the surface that valve seat touches mutually.
The beneficial effect that the utlity model has is: owing to adopt spherical valve rod, by with the combining of spherical valve rod and spherical sealing seat, sealing effect is strengthened greatly, and, touch the surface mutually and handle,, can realize the ceramet sealing of spherical valve stem valve door as the HVAF technical finesse by plasma spray technology, increase sealing effect and working life greatly, it is big and can effectively avoid packing seal easily to produce the defective of seepage to have eliminated surface friction drag during valve switch.
Description of drawings:
Fig. 1 is the utility model structure sectional view;
Fig. 2, Fig. 3 are the utility model structure sectional views of two kinds of application in addition.
1-valve rod among the figure, the 2-valve body, the 3-spool, the 4-valve seat, the 5-sealing seat, the 6-seal, 7-encircles platform, 8-pressure cap.
Embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
As shown in Figure 1, this spherical valve stem valve door comprises valve body 2, spool 3 and valve seat 4, spool 3 places in the valve seat 4, spool 3 can be shaft-like and fixedlys connected with spherical valve rod 1, valve rod 1 middle part is that spherical two ends are cylindrical, put in there is the valve body 2 of ring platform 7 at the middle part, spherical valve rod 1 has sealing seat 5 with the space disposal that valve body 2 constitutes, on sealing seat 5, be equipped with threaded pressure cap 8, pressure cap 8 and valve body 2 are fixed by screw thread, and the bottom of valve rod 1 links to each other with spool 3 by screw thread, and the bottom of spool 3 places on the valve seat 4, be equipped with seal 6 between spool 3 and the valve seat 4, play the effect of leakage proof; The spherical outer surface of valve rod 1 can have coating, spool 3 can have coating with the surface that valve seat 4 touches mutually, handle by plasma spray technology, as the HVAF technical finesse, can realize the ceramet sealing of spherical valve stem valve door, increase sealing effect and working life greatly, it is big and can effectively avoid packing seal easily to produce the defective of seepage to have eliminated surface friction drag; As shown in Figure 2, spool 3 also can be the flashboard shape and with valve rod 1 for being threaded, as shown in Figure 3, spool 3 also can be spherical and with valve rod 1 card connection mutually, realize the sealing effect of spherical valve stem valve door.
This spherical valve stem valve door is owing to adopt spherical valve rod 1, by with the combining of spherical valve rod 1 and spherical sealing seat 5, sealing effect is strengthened greatly, and, handle by plasma spray technology,, can realize the ceramet sealing of spherical valve stem valve door as the HVAF technical finesse, increase sealing effect and working life greatly, it is big and can effectively avoid packing seal easily to produce the defective of seepage to have eliminated surface friction drag.
Claims (6)
1, a kind of spherical valve stem valve door comprises valve body (2), spool (3) and valve seat (4), and spool (3) places in the valve seat (4), it is characterized in that: valve body (2) is built-in with the top that links to each other with spool (3) and is spherical valve rod (1).
2, spherical valve stem valve door according to claim 1, it is characterized in that: spool (3) can be shaft-like.
3, spherical valve stem valve door according to claim 1, it is characterized in that: spool (3) can be the flashboard shape.
4, spherical valve stem valve door according to claim 1, it is characterized in that: spool (3) can be spherical.
5, spherical valve stem valve door according to claim 1, it is characterized in that: the spherical outer surface of valve rod (1) can have coating.
6, according to claim 1,2,3 or 4 described spherical valve stem valve doors, it is characterized in that: spool (3) can have coating with the surface that valve seat (4) touches mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320128055 CN2667265Y (en) | 2003-12-18 | 2003-12-18 | Ball shape valve stem valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320128055 CN2667265Y (en) | 2003-12-18 | 2003-12-18 | Ball shape valve stem valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2667265Y true CN2667265Y (en) | 2004-12-29 |
Family
ID=34349753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320128055 Expired - Fee Related CN2667265Y (en) | 2003-12-18 | 2003-12-18 | Ball shape valve stem valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2667265Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135208A (en) * | 2011-01-18 | 2011-07-27 | 尤隐森 | Ball rod valve |
| CN102364176A (en) * | 2011-10-26 | 2012-02-29 | 宣达实业集团有限公司 | Ball valve |
| CN105257853A (en) * | 2015-11-02 | 2016-01-20 | 苏州市淞舜五金有限公司 | Stable anti-leakage lubricating gate valve |
-
2003
- 2003-12-18 CN CN 200320128055 patent/CN2667265Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135208A (en) * | 2011-01-18 | 2011-07-27 | 尤隐森 | Ball rod valve |
| CN102364176A (en) * | 2011-10-26 | 2012-02-29 | 宣达实业集团有限公司 | Ball valve |
| CN105257853A (en) * | 2015-11-02 | 2016-01-20 | 苏州市淞舜五金有限公司 | Stable anti-leakage lubricating gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |