CN201368220Y - Integrative high-pressure ball valve - Google Patents
Integrative high-pressure ball valve Download PDFInfo
- Publication number
- CN201368220Y CN201368220Y CNU2009201154548U CN200920115454U CN201368220Y CN 201368220 Y CN201368220 Y CN 201368220Y CN U2009201154548 U CNU2009201154548 U CN U2009201154548U CN 200920115454 U CN200920115454 U CN 200920115454U CN 201368220 Y CN201368220 Y CN 201368220Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- pressure
- valve body
- main valve
- 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 relates to an integrative high-pressure ball valve, comprising a main valve body, and a valve core and a valve pole which are arranged in the main valve body; valve seats which are matched with the valve core in a sealing way are arranged at the two sides of the valve core in the main valve body, a top pressure valve seat is located in the main valve body at one side of the valve seat, a top pressure spring is arranged between the top pressure valve seat and the valve seat, and the inlet end of the main valve body is welded with a connecting body. The ball valve overcomes the disadvantages that in the prior art, the valve seat of the common ball valve has small elastic range, can leak in a lower-pressure working condition and is easy to tightly coat the ball core when the temperature is heated up; by adopting the design, the abrasion, the pressure and size change caused by temperature fluctuation of a sealing surface can be automatically compensated, so as to realize reliable sealing; the integrative high-pressure ball valve has the advantages of simple structure, large elastic range of the valve seat, convenient assembly and long service life.
Description
Technical field
The utility model relates to a kind of integral type high-pressure ball valve.
Background technique
Ball valve is widely used in the control unit of making pipeline fluid in the various career fields, and it is little that ball valve has fluid resistance, opens and closes rapidly the better simply advantage of structure.Traditional ball valve generally adopts the soft seal valve seat, and its sealing mechanism relies on external force to produce seal pressure on the ball core and the contact surface of valve seat and realizes.Existing ball seat structure is generally nonelastic design, exists the numerous sense of cold flow, and elastic range is little, and the low pressure operating mode can be leaked, and valve seat easily packed tightly shortcomings such as ball core when temperature raise.
Summary of the invention
For the valve seat elastic range that overcomes ordinary ball valve in the prior art little, the low pressure operating mode can be leaked, valve seat easily packed tightly the problem of ball core when temperature raise, the utility model provides a kind of integral type high-pressure ball valve, simple in structure, the good seal performance of this integral type high-pressure ball valve, easy to assembly, long service life.
The technological scheme that its technical problem that solves the utility model adopts is: comprise spool, valve rod in main valve body and the main valve body, spool both sides in the main valve body are equipped with the valve seat that is sealed and matched with it, location roof pressure valve seat is provided with top pressure spring between roof pressure valve seat and the valve seat in the main valve body of valve seat one side.
The entrance point and the connecting body of main valve body are weldingly connected.
One end of connecting body inserts in the main valve body, the equal diameters of its insertion end diameter and roof pressure valve seat.
The utility model is by above-mentioned specific design, but the dimensional changes that the wearing and tearing of automatic compensation sealing face and pressure, temperature fluctuation cause, thus realize reliable sealing, have that elastic range simple in structure, valve seat is big, easy to assembly, the advantage of long service life.
Description of drawings
Below in conjunction with drawings and Examples detailed content of the present utility model is described.
Accompanying drawing is a structural representation of the present utility model.
Embodiment
As shown in the figure, the utility model comprises spool 2, the valve rod 3 in main valve body 1 and the main valve body 1, and main valve body 1 is an integral structure.Spool 2 both sides in the main valve body 1 are equipped with the valve seat 4 that is sealed and matched with it, and location roof pressure valve seat 5 is provided with top pressure spring 6 between roof pressure valve seat 5 and the valve seat 4 in the main valve body 1 of valve seat 4 one sides.Top pressure spring 6 roof pressure valve seats 4 can compensate the wearing and tearing of sealing surface of seat and the dimensional changes that pressure, temperature fluctuation cause automatically, thereby realize reliable sealing.The entrance point of main valve body 1 and connecting body 7 are weldingly connected, its Placement can be that an end of connecting body 7 inserts in the main valve body 1, its external seam welding links to each other, and the insertion end diameter of connecting body 7 and the equal diameters of roof pressure valve seat 5, this structure can improve the convenience of ball valve assembling greatly.Above-described embodiment only is that the preferred implementation to the utility model integral type high-pressure ball valve is described; be not that design and scope to model utility limits; under the prerequisite that does not break away from the utility model scheme; various external form modification and improvement that those skilled in the art make the technical solution of the utility model all should fall into the protection domain of the utility model integral type high-pressure ball valve.
Claims (3)
1, a kind of integral type high-pressure ball valve, comprise spool, valve rod in main valve body and the main valve body, spool (2) both sides in the main valve body (1) are equipped with the valve seat (4) that is sealed and matched with it, it is characterized in that location roof pressure valve seat (5) in the main valve body (1) of valve seat (4) one sides, between roof pressure valve seat (5) and the valve seat (4) top pressure spring (6) is set.
2, integral type high-pressure ball valve according to claim 1 is characterized in that the entrance point of main valve body (1) and connecting body (7) are weldingly connected.
3, integral type high-pressure ball valve according to claim 2 is characterized in that an end of connecting body (7) inserts in the main valve body (1) equal diameters of its insertion end diameter and roof pressure valve seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201154548U CN201368220Y (en) | 2009-03-14 | 2009-03-14 | Integrative high-pressure ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201154548U CN201368220Y (en) | 2009-03-14 | 2009-03-14 | Integrative high-pressure ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201368220Y true CN201368220Y (en) | 2009-12-23 |
Family
ID=41487113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201154548U Expired - Fee Related CN201368220Y (en) | 2009-03-14 | 2009-03-14 | Integrative high-pressure ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201368220Y (en) |
-
2009
- 2009-03-14 CN CNU2009201154548U patent/CN201368220Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20100314 |