CN203686231U - Double-piston effect valve seat - Google Patents
Double-piston effect valve seat Download PDFInfo
- Publication number
- CN203686231U CN203686231U CN201320871231.0U CN201320871231U CN203686231U CN 203686231 U CN203686231 U CN 203686231U CN 201320871231 U CN201320871231 U CN 201320871231U CN 203686231 U CN203686231 U CN 203686231U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- valve
- runddichtringo
- double
- sealing 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
Links
- 230000000694 effects Effects 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract 3
- 238000007906 compression Methods 0.000 abstract 3
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a double-piston effect valve seat which comprises a valve, a valve seat and a valve core which are assembled together, wherein a first O-shaped sealing ring is arranged between the valve body and the valve seat; the circumference of the valve seat is sleeved with the first O-shaped sealing ring; the valve body is provided with an assembling chamfering for assembling the O-shaped sealing ring; a second O-shaped sealing ring is arranged between the valve core and the valve seat; a second O-shaped sealing ring mounting groove is formed in a contact surface of the valve seat and the valve core; the second O-shaped sealing ring is arranged inside the second O-shaped sealing ring mounting groove; a compression spring which is coaxial with the valve seat is arranged between the valve body and the valve seat; a mounting groove for holding the compression spring is formed in the valve body; a spring support surface perpendicular to the compression spring is arranged on the valve seat. The double-piston effect valve seat disclosed by the utility model is compact in structure, a design space is saved, the production cost is lowered, and the sealing property of the valve is not changed.
Description
Technical field
The utility model relates to double-piston effect valve seat.
Background technique
Double-piston effect valve seat claims again double-sealing valve seat, be generally used for rock gas and gas field, its feature is the magnitude of pressure differential before and after ball no matter, and the every one end of valve or valve lumen can independently be born the poor sealing of total head, and can guarantee that upstream and downstream seals simultaneously, guarantee continuously without leaking.
But existing double-piston effect valve seat construction is compact not, and cost of production is high.
Model utility content
The purpose of this utility model is to provide a kind of double-piston effect valve seat, and its structure is compacter, and valve seal performance is constant simultaneously.
For achieving the above object, the technical solution of the utility model is a kind of double-piston effect valve seat of design, comprises the valve body, valve seat and the spool that are assembled together;
Described valve body and valve base chamber are provided with an O RunddichtringO, and a described O RunddichtringO is enclosed within valve seat periphery, and described valve body is provided with the assembly chamfer for assembling O RunddichtringO;
Described spool and valve base chamber are provided with the 2nd O RunddichtringO, and described valve seat is provided with the 2nd O RunddichtringO mounting groove on the surface of contact of itself and spool, and described the 2nd O RunddichtringO is arranged in the 2nd O RunddichtringO mounting groove;
Described valve body and valve base chamber are provided with and the homoaxial Compress Spring of valve seat, and described valve body is provided with the mounting groove for placing Compress Spring, and described valve seat is provided with the spring supporting face vertical with Compress Spring.
Preferably, the surface of contact of described valve seat and spool and spool are tangent.
Advantage of the present utility model and beneficial effect are: a kind of double-piston effect valve seat is provided, use the metal supporting rings at valve seat place in existing double-piston effect valve seat construction instead special O RunddichtringO, its structure is compacter, saved design space and reduced cost of production, valve seal performance is constant simultaneously.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
The concrete technological scheme of implementing of the utility model is:
As shown in Figure 1, a kind of double-piston effect valve seat 2, comprises the valve body 1, valve seat 2 and the spool 3 that are assembled together;
Between described valve body 1 and valve seat 2, be provided with an O RunddichtringO 4, a described O RunddichtringO 4 is enclosed within valve seat 2 peripheries, and described valve body 1 is provided with the assembly chamfer for assembling O RunddichtringO;
Between described spool 3 and valve seat 2, be provided with the 2nd O RunddichtringO 5, described valve seat 2 is provided with the 2nd O RunddichtringO 5 mounting grooves on the surface of contact of itself and spool 3, and described the 2nd O RunddichtringO 5 is arranged in the 2nd O RunddichtringO 5 mounting grooves;
Between described valve body 1 and valve seat 2, be provided with and the homoaxial Compress Spring 6 of valve seat 2, described valve body 1 is provided with the mounting groove for placing Compress Spring 6, and described valve seat 2 is provided with the spring supporting face vertical with Compress Spring 6.
Described valve seat 2 is tangent with surface of contact and the spool 3 of spool 3.
The double-piston effect valve seat 2 that the utility model provides, use the metal supporting rings at valve seat 2 places in existing double-piston effect valve seat 2 structures instead special O RunddichtringO, its structure is compacter, has saved design space and has reduced cost of production, and valve seal performance is constant simultaneously.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. double-piston effect valve seat, is characterized in that, comprises the valve body, valve seat and the spool that are assembled together;
Described valve body and valve base chamber are provided with an O RunddichtringO, and a described O RunddichtringO is enclosed within valve seat periphery, and described valve body is provided with the assembly chamfer for assembling O RunddichtringO;
Described spool and valve base chamber are provided with the 2nd O RunddichtringO, and described valve seat is provided with the 2nd O RunddichtringO mounting groove on the surface of contact of itself and spool, and described the 2nd O RunddichtringO is arranged in the 2nd O RunddichtringO mounting groove;
Described valve body and valve base chamber are provided with and the homoaxial Compress Spring of valve seat, and described valve body is provided with the mounting groove for placing Compress Spring, and described valve seat is provided with the spring supporting face vertical with Compress Spring.
2. double-piston effect valve seat according to claim 1, is characterized in that, surface of contact and the spool of described valve seat and spool are tangent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871231.0U CN203686231U (en) | 2013-12-27 | 2013-12-27 | Double-piston effect valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871231.0U CN203686231U (en) | 2013-12-27 | 2013-12-27 | Double-piston effect valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686231U true CN203686231U (en) | 2014-07-02 |
Family
ID=51008131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320871231.0U Expired - Fee Related CN203686231U (en) | 2013-12-27 | 2013-12-27 | Double-piston effect valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051204A (en) * | 2016-08-03 | 2016-10-26 | 常州大学 | Ultra-large diameter all-welded ball valve sealing structure |
-
2013
- 2013-12-27 CN CN201320871231.0U patent/CN203686231U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051204A (en) * | 2016-08-03 | 2016-10-26 | 常州大学 | Ultra-large diameter all-welded ball valve sealing structure |
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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: 20140702 |