CN2317364Y - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN2317364Y CN2317364Y CN 97230494 CN97230494U CN2317364Y CN 2317364 Y CN2317364 Y CN 2317364Y CN 97230494 CN97230494 CN 97230494 CN 97230494 U CN97230494 U CN 97230494U CN 2317364 Y CN2317364 Y CN 2317364Y
- Authority
- CN
- China
- Prior art keywords
- valve rod
- valve
- nut
- ball
- valve body
- 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 a ball valve which is composed of a valve body, a ball-shaped valve core, an O-ring seal, a combining cap, a valve rod, a valve rod nut, a handle, a tightening nut, etc. The lower part of the valve rod is provided with a convex boss step. The inner diameter of a valve rod mounting hole which is arranged on the valve body is bigger than the outer diameter of the thickest part of the valve rod. The valve rod nut is tightened in the valve rod mounting hole on the valve body. The bottom of valve rod nut abuts on the convex boss step of the valve rod to prevent the valve rod from moving upwards. The valve rod of the ball valve with the structure and the sealing element of the valve rod can be easily replaced, so the ball valve can be conveniently used.
Description
The utility model relates to a kind of ball valve, especially a kind of ball valve that is made of valve body, spherical valve core, O-ring seal and cap, valve rod, valve rod nut, handle, fastening nut.
Existing ball valve, on the valve rod mounting hole of its valve body the convex protrusion step is arranged generally, its valve rod is installed on the valve body in the ball chamber by valve body, the one end stretches out outside the valve body, the other end is stuck in the ball chamber of valve body by the valve rod mounting hole of valve body, because valve rod is to rotate continually so that drive ball valve to realize opening and closing at work, diaphragm seal on the valve rod or seal ring need often to change because of wearing and tearing, valve rod itself also needs in time to change because of wearing and tearing, and valve rod is to install in the ball chamber of valve body, if replacing diaphragm seal or seal ring and replacing valve rod must be pulled down whole ball valve earlier earlier from pipeline, again ball valve is taken apart, valve rod is taken out in the ball chamber just replaceable, give so undoubtedly produce and life in the ball valve of use said structure bring many inconvenience.
The purpose of this utility model provides a kind of ball valve that can change the seal element on valve rod and the valve rod easily.
To achieve these goals, technical solution of the present utility model is such: ball valve is made of valve body, spherical valve core, O-ring seal and cap, valve rod, valve rod nut, handle, fastening nut etc., its stem lower portion has a convex protrusion step, the valve rod mounting hole internal diameter of valve body is greater than the external diameter of valve rod thickest part, the valve rod nut is fastened in the valve rod mounting hole of valve body, the bottom surface of valve rod nut heads on the convex protrusion step of valve rod, and the restriction valve rod moves up.
Because in the above-mentioned technical solution, the convex protrusion step of valve rod is to realize spacing by the bottom surface of valve rod nut, if change the diaphragm seal or the seal ring of valve rod and change valve rod itself, only need pull down the valve rod nut can take out valve rod and Sealing, need not whole ball valve to be pulled down from pipeline very bothersomely, take ball valve again apart, made things convenient for use widely.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the utility model example structure view.
Wherein: 1. valve body; 2. spherical valve core; 3. O-ring seal; 4. and cap; 5. valve rod; 6. valve rod nut; 7. handle; 8. fastening nut; 9. convex protrusion step; 10. sealed groove; 11.O RunddichtringO; 12. gasket seal; 13. interface thread hole.
As shown in the figure, there is the ball chamber in valve body 1 central authorities, be processed with the valve rod mounting hole above the ball chamber, respectively there is an interface thread hole 13 at the two ends of valve body 1, spherical valve core 2 is located between two O-ring seals 3, and by and cap 4 location be pressed in the ball chamber, one convex protrusion step 9 is arranged at valve rod 5 bottoms, the valve rod mounting hole internal diameter of valve body 1 is greater than the external diameter of valve rod 5 thickest partes, valve rod nut 6 is fastened in the valve rod mounting hole of valve body 1, the bottom of valve rod nut 6 heads on the convex protrusion step 9 of valve rod 5, restriction valve rod 5 moves up, and is processed with two sealed grooves 10 on the external cylindrical surface that valve rod 5 and valve rod nut 6 match, and in every sealed groove 10 O RunddichtringO 11 is housed, be provided with gasket seal 12 between valve rod nut 6 and the valve body 1, handle 7 is fixed on the valve rod 5 by fastening nut 8, handle with sleeve 7, and valve rod 5 is being followed and is being rotated, the rotation of valve rod 5 drives the rotation of spherical valve core 2, realizes the control function of ball valve.In using installation, ball valve is connected on the pipeline by the interface thread hole 13 at two ends, in use for some time, if valve rod 5 or valve rod sealing member need to change because of wearing and tearing, need not to tear being connected of ball valve and pipeline open,, pull down handle 7 as long as unclamp fastening nut 8, unclamp valve rod nut 6 again, can take out and change valve rod 5 and valve rod sealing member easily.
Claims (3)
1, a kind of ball valve, mainly constitute by valve body, spherical valve core, O-ring seal and cap, valve rod, valve rod nut, handle, fastening nut, it is characterized in that: a convex protrusion step (9) is arranged at valve rod (5) bottom, the valve rod mounting hole internal diameter of valve body (1) is greater than the external diameter of valve rod (5) thickest part, valve rod nut (6) is fastened in the valve rod mounting hole of valve body (1), the bottom surface of valve rod nut (6) heads on the convex protrusion step (9) of valve rod (5), and restriction valve rod (5) moves up.
2, ball valve according to claim 1, it is characterized in that: on the external cylindrical surface that valve rod (5) and valve rod nut (6) endoporus match, be processed with sealed groove (10), O RunddichtringO (11) is housed in the sealed groove (10), is provided with gasket seal (12) between valve rod nut (6) and the valve body (1).
3, ball valve according to claim 2, it is characterized in that: the sealed groove (10) on the external cylindrical surface that valve rod (5) and valve rod nut (6) endoporus match has two, has two O RunddichtringOs (11) to be contained in respectively in two sealed grooves (10) accordingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97230494 CN2317364Y (en) | 1997-12-17 | 1997-12-17 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97230494 CN2317364Y (en) | 1997-12-17 | 1997-12-17 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2317364Y true CN2317364Y (en) | 1999-05-05 |
Family
ID=33942991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97230494 Expired - Fee Related CN2317364Y (en) | 1997-12-17 | 1997-12-17 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2317364Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116540C (en) * | 2000-12-08 | 2003-07-30 | 陈西火 | Leakproof durable ball valve structure |
| CN1325825C (en) * | 2001-05-14 | 2007-07-11 | 博诺米阀门机床有限责任公司 | Valve with metal seal between coupled parts of its body |
| CN105782482A (en) * | 2016-04-12 | 2016-07-20 | 蒋立伟 | Inner guide PPR water pipe ball valve |
-
1997
- 1997-12-17 CN CN 97230494 patent/CN2317364Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116540C (en) * | 2000-12-08 | 2003-07-30 | 陈西火 | Leakproof durable ball valve structure |
| CN1325825C (en) * | 2001-05-14 | 2007-07-11 | 博诺米阀门机床有限责任公司 | Valve with metal seal between coupled parts of its body |
| CN105782482A (en) * | 2016-04-12 | 2016-07-20 | 蒋立伟 | Inner guide PPR water pipe ball 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 |