CN2921482Y - Separate ball valve - Google Patents
Separate ball valve Download PDFInfo
- Publication number
- CN2921482Y CN2921482Y CN 200620044015 CN200620044015U CN2921482Y CN 2921482 Y CN2921482 Y CN 2921482Y CN 200620044015 CN200620044015 CN 200620044015 CN 200620044015 U CN200620044015 U CN 200620044015U CN 2921482 Y CN2921482 Y CN 2921482Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- ball core
- ball
- valve seat
- 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 a separate ball valve which comprises a valve body (1), wherein, a pipe (2) is arranged in the middle of the valve body (1); a ball core (3) is arranged in the valve body (1); a valve handle (4) is connected with the ball core (3); a valve seat (5) is arranged between the ball core (3) and the valve body (1) which formed by connected a left valve body (6) and a right valve body (7), and a middle spacer (8) is arranged in the joint of the left valve body (6) and the right valve body (7). The valve body of the utility model is divided into two parts, namely the left valve body and the right valve body. When in normal use, the contact surface between the arc-shaped ball core and the valve seat surface is small and essentially becomes a line contact; when the pipe pressure increases suddenly, the force on the ball core will press the valve seat and the pressure will be reduced through the deformation of the valve body, thereby preventing the ball core from getting into the valve seat and avoiding a failure to emergency valve opening. The utility model has the advantages of simple structure, good seal effect and assured valve opening.
Description
Technical field: the utility model relates to a kind of split type ball valve, belongs to the ball valve technical field.
Background technique: during the ball valve valve closing, the ball core is pressed on the valve seat, if urgency, when the pressure in the pipeline raise suddenly, the ball core might " be absorbed in " between the valve seat, made that the ball core is stuck by valve seat, this moment, valve can't emergency opening, and security incident takes place easily.
Summary of the invention
The purpose of this utility model is: a kind of split type ball valve of simple in structure, good sealing effect is provided, can cause being absorbed in of ball core and valve seat when pipeline pressure increases, thereby guarantee the unlatching of valve.
The utility model is to constitute like this: it comprises valve body (1), be provided with pipeline (2) in the middle of the valve body (1), in valve body (1), be provided with ball core (3), ball core (3) is gone up and is connected valve rod (4), between ball core (3) and valve body (1), be provided with valve seat (5), valve body (1) is connected and composed by left valve barrel (6) and right valve barrel (7), is provided with middle pad (8) in the slit in left valve barrel (6) and being connected of right valve barrel (7).
Above-mentioned split type ball valve, ball core (3) is an arc with the surface of contact (9) of valve seat (5).
Valve body of the present utility model is divided into two parts of left and right sides valve body, middle pad in the connection slit can prevent the leakage of valve body, during normal the use, the ball core and the valve base surface surface of contact of circular arc are little, substantially reach the line contact, when the pressure of pipeline raises suddenly, the power that acts on the ball core is squeezed on the valve seat, valve seat passes to pressure on the valve body of the left and right sides, reduce pressure by the deformation between the valve body, along with the increase of pressure, the area of contact of valve seat and ball core increases, can avoid the ball core to be absorbed between the valve seat, cause the valve can't emergency opening.Therefore the utlity model has simple in structure, good sealing effect, can guarantee the advantage of valve opening.
Description of drawings: accompanying drawing 1 is a structural representation of the present utility model; The user mode figure of accompanying drawing 2 ball core and valve seat when normally closing; The user mode figure of ball core and valve seat when accompanying drawing 3 increases for pressure.
Embodiment
Embodiment of the present utility model: make valve body (1), valve body (1) is divided into left valve barrel (6) and right valve barrel (7) two-part, left valve barrel (6) and right valve barrel (7) are connected and fixed by screw and nut (10), pad (8) in being connected of left valve barrel (6) and right valve barrel (7) adds in the slit, lock screw and nut (10), guarantee the sealing of valve body (1), in the middle of valve body (1) is pipeline (2), ball core (3) is installed in valve body (1), go up connection valve rod (4) at ball core (3), between ball core (3) and valve body (1) valve seat (5) is installed, (9) are made as arc to ball core (3) with contacting of valve seat (5), and the surface of valve seat (5) is the plane.When normally closing, as shown in Figure 2, ball core (3) contacts for line with valve seat (5) surface, when the pressure in the pipeline (2) increased, as shown in Figure 3, ball core (3) increased with the surface of contact of valve seat (5), valve seat (5) passes to pressure on left valve barrel (6) and the right valve barrel (7), reduce the pressure of ball core (3) by deformation, it is stuck to prevent that ball core (3) is absorbed in the valve seat (5), makes that valve can emergency opening.
Claims (2)
1, a kind of split type ball valve, it comprises valve body (1), be provided with pipeline (2) in the middle of the valve body (1), in valve body (1), be provided with ball core (3), ball core (3) is gone up and is connected valve rod (4), be provided with valve seat (5) between ball core (3) and valve body (1), it is characterized in that: valve body (1) is connected and composed by left valve barrel (6) and right valve barrel (7), is provided with middle pad (8) in the slit in left valve barrel (6) and being connected of right valve barrel (7).
2, split type ball valve according to claim 1 is characterized in that: ball core (3) is an arc with the surface of contact (9) of valve seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044015 CN2921482Y (en) | 2006-07-19 | 2006-07-19 | Separate ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044015 CN2921482Y (en) | 2006-07-19 | 2006-07-19 | Separate ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2921482Y true CN2921482Y (en) | 2007-07-11 |
Family
ID=38253961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620044015 Expired - Fee Related CN2921482Y (en) | 2006-07-19 | 2006-07-19 | Separate ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2921482Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062433A (en) * | 2013-01-14 | 2013-04-24 | 嘉士凯（苏州）阀门配件有限公司 | High-pressure deformation compensation sphere and method for manufacturing same |
-
2006
- 2006-07-19 CN CN 200620044015 patent/CN2921482Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062433A (en) * | 2013-01-14 | 2013-04-24 | 嘉士凯（苏州）阀门配件有限公司 | High-pressure deformation compensation sphere and method for manufacturing same |
| CN103062433B (en) * | 2013-01-14 | 2014-08-06 | 嘉士凯（苏州）阀门配件有限公司 | High-pressure deformation compensation sphere and method for manufacturing same |
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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: 20070711 Termination date: 20130719 |