CN2314167Y - Fully openable valve with conic piston and dual sealing transmission - Google Patents
Fully openable valve with conic piston and dual sealing transmission Download PDFInfo
- Publication number
- CN2314167Y CN2314167Y CN 97246358 CN97246358U CN2314167Y CN 2314167 Y CN2314167 Y CN 2314167Y CN 97246358 CN97246358 CN 97246358 CN 97246358 U CN97246358 U CN 97246358U CN 2314167 Y CN2314167 Y CN 2314167Y
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- CN
- China
- Prior art keywords
- valve
- sealing
- valve body
- utility
- screw rod
- 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 provides a fully openable valve with conic pistons and dual sealing transmission. The utility model adopts a sealing structure that an upper part and a lower part are respectively provided with two stages; conical surfaces of plunger blocks in an inverted conical shape inosculate with conical surfaces of a valve body; pressure rings which are provided with sharp wedges and arranged on the lower part of the plunger blocks in the inverted conical shape are tightly embedded on sealing elements in the working grooves of the valve body; the inner part of screw rods and valve covers is provided with upper and lower sealing rings which tightly press the sealing elements in the grooves. When the pressure of medium in the valve increases, the structure which is adopted by the valves can make the compression of the sealing elements more compact, the generated sealing force increase and the sealing effect better, and effectively prevent leakage from happening. The utility model has the advantages of flexible opening and closing and high reliability and can be widely used for industries, such as steam with high-temperature and high-pressure, petroleum, chemical industry, pesticide, etc.
Description
The utility model relates to a kind of valve, especially a kind of circular cone plunger double-sealing transmission complete opening type valve.
Mostly the valve that uses is to adopt rotary screw part asbestos rope as sealing material at present, because asbestos rope is easy to wear, often causes seepage.
The purpose of this utility model provides that a kind of switch is flexible, reliability is high, double-sealing, ne-leakage, long service life, circular cone plunger double-sealing transmission complete opening type valve applied widely.
The utility model improves on the basis of existing valve, respectively adopt the two-stage sealing up and down at valve, the bottom that is inverted cone plunger piece is the ring that a band point is carved, compress the seal element that is embedded in the valve body work nest, the conical surface of plunger and valve body conical surface kissing are combined into the two-stage sealing, on in screw rod and valve gap, having seal joint and lower seal pressure ring with groove in seal element compress, form the two-stage leak-tight seal.
The utility model is owing to adopted above level Four sealing configuration, can make valve pressure as if medium in the valve body when work increase, then the shaft shoulder of screw rod is also increased by the strength of upwards pushing, thereby make compressing of seal element more closely knit, the sealing force that produces also increases, the effect of sealing is also good more, more effectively anti-leak.This threshold switch is flexible simultaneously, and the reliability height can be widely used in the industrial every profession and trade of high temperature high pressure such as steam, oil, chemical industry, agricultural chemicals, sugaring.
Elaborate below in conjunction with accompanying drawing.
Fig. 1 is the utility model structural representation.
Indicate among the figure: 1, handwheel 2, screw rod 3, transmission nut 4, inverted cone plunger piece 5, valve body 6, seal element 7, the shaft shoulder 8, nut 9, valve gap 10, last seal joint 11, lower seal pressure ring 12,13, seal element.
The utility model mainly is made up of valve body, valve gap, handle, screw rod, inverted cone sealing chock, seal joint, transmission nut and seal element.Handwheel (1) is fixed on screw rod (2) top, screw rod enters in the valve body from valve gap (9) top on the valve body (5), valve respectively adopts the two-stage sealing up and down, on promptly in screw rod and valve gap, having seal joint (10) and lower seal pressure ring (11) with groove in seal element compress, form the two-stage leak-tight seal; The bottom that the inverted cone plunger lacks (4) is the ring that a band point is carved, and compresses the seal element (6) that is embedded in valve body (5) work nest, and the conical surface of plunger (4) and valve body (5) conical surface match and form the two-stage sealing.Both can shut valve at arbitrary working, this valve is to drive coupled circular cone plunger piece (4) by transmission nut (3) to move up and down the opening and closing valve, rotation is played on screw rod top in valve gap, this can guarantee effectively that sealability is excellent.The shaft shoulder (7) that screw rod (2) middle part is provided with is at the nut (8) on screw rod top when tightening up, just screw rod is fixed on the valve gap (9), will be embedded in valve gap by upper and lower seal joint (10,11) simultaneously and combines seal element (12,13) in form recessed poor with screw axis and compress and form the two-stage leak-tight seal.
This valve is according to the requirement that is used in different medium, and the material that can change valve body and seal element easily just can adapt to.Adopt carbon steel and adopt special asbestos product such as oil stain asbestos packing or rubber asbestos packing to make seal element as valve body, make its applicable to≤450 ℃ ,≤60Kgf/cm
2High-temperature high-pressure medium, as steam, heavy crude etc.So the Applicable scope of this valve is quite extensive.
Claims (1)
1, a kind of circular cone plunger double-sealing transmission complete opening type valve, handwheel (1) is fixed on screw rod (2) top, screw rod enters in the valve body from valve gap (9) top on the valve body (5), it is characterized in that: valve respectively adopts the two-stage sealing up and down, on promptly in screw rod and valve gap, having seal joint (10) and lower seal pressure ring (11) with groove in seal element compress, form the two-stage leak-tight seal; The bottom of inverted cone plunger piece (4) is the ring that a band point is carved, and compresses the seal element (6) that is embedded in valve body (5) work nest, and the conical surface of plunger (4) and valve body (5) conical surface match and form the two-stage sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97246358 CN2314167Y (en) | 1997-12-05 | 1997-12-05 | Fully openable valve with conic piston and dual sealing transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97246358 CN2314167Y (en) | 1997-12-05 | 1997-12-05 | Fully openable valve with conic piston and dual sealing transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2314167Y true CN2314167Y (en) | 1999-04-14 |
Family
ID=33954574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97246358 Expired - Fee Related CN2314167Y (en) | 1997-12-05 | 1997-12-05 | Fully openable valve with conic piston and dual sealing transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2314167Y (en) |
-
1997
- 1997-12-05 CN CN 97246358 patent/CN2314167Y/en not_active Expired - Fee Related
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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 |