CN200940703Y - Ball valve core - Google Patents
Ball valve core Download PDFInfo
- Publication number
- CN200940703Y CN200940703Y CN 200620106649 CN200620106649U CN200940703Y CN 200940703 Y CN200940703 Y CN 200940703Y CN 200620106649 CN200620106649 CN 200620106649 CN 200620106649 U CN200620106649 U CN 200620106649U CN 200940703 Y CN200940703 Y CN 200940703Y
- Authority
- CN
- China
- Prior art keywords
- valve core
- spherical shell
- ball valve
- straight tube
- groove
- 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 valve core of a ball valve, relates to a valve. The utility model solves the problem which exists in the existing technology that the manufacturing cost is high and the sealing performance is not good. The valve core of ball valve, which is globular, is provided with a through hole through the center thereof. A groove, which cooperates with a valve stem, is arranged on the surface of the valve core. The valve core of ball valve is consisted of an outer spherical shell which is provided with spherical shell shape and an inner straight tube which is provided with cylinder shape. The outer spherical shell and the inner straight tube are fixedly connected to form a hollow body. The through hole is the inner hole of the inner straight tube. The groove is arranged on the outer spherical shell. By connecting the inner straight tube and the out spherical shell to form a hollow body, the weight of the valve core of the utility model is relative lighter, thus massive raw material is saved and the cost is reduced.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of ball valve core.
Background technique
The spherical valve core of ball valve is to utilize the moulding of casting processing mode traditionally, and the ball valve core of making because of casting technique is solid body, and weight is heavier, and the copper large usage quantity is so can cause the increase of cost.The ball valve core of existing casting technique generally all adopts the founding casting in addition, once-through, and tend to occur cinder hole in ball valve core surface or the ball valve core in the founding process, cause the ball valve core infiltration, make and water leakage phenomenon to occur under valve in off position, the diameter of casting the ball valve core blank in addition is more than 1.5 times of finished diameter normally, and blank carried out turning to the required diameter of finished product, it is not only more loaded down with trivial details time-consuming in manufacturing processing, and can't solve the problem that has sand hole on the foundry goods fully, cause the finished product rate low, have a strong impact on processing speed and the manufacture cost of making ball valve core, waste is very serious simultaneously; When adopting casting technique to make ball valve core in addition, need to adopt hot environment, produce a large amount of dusts, not only need the more increase cost of energy, and cause the pollution of environment.
Summary of the invention
The utility model is at the above-mentioned technical problem of existing in prior technology, and a kind of water proofing property and good airproof performance, saving material, ball valve core that cost is low are provided.
Above-mentioned technical purpose of the present utility model solves by the following technical programs: a kind of ball valve core, be spherical, has a through hole that connects its center, its surface has one and is used for the groove that matches with valve rod, it is characterized in that, described ball valve core by the outer spherical shell that is spherical shell shape and be cylindraceous in straight tube formed, both are fixed together and form a hollow body, described through hole is the endoporus of interior straight tube, and described groove is opened on outer spherical shell.The cavity of outer spherical shell inside is used to install interior straight tube, interior straight tube intersects flow inlet and the outlet that forms spool with the outer surface of outer spherical shell, the endoporus of interior straight tube is a flow channel, smooth and the sealing of the connection part of interior straight tube two ends and outer spherical shell can guarantee that like this spool water intake and water outlet are water-tight.Groove and the valve rod offered on the outer spherical shell match, described groove can be rectangular, valve rod inserts in the groove, get final product rotational valve core by rotation valve rod, so require valve rod vertical with described through hole, it is the spool of a hollow body that described interior straight tube and outer spherical shell are connected, and this makes that the weight of spool described in the utility model is less, thereby saved great deal of raw materials, reduced cost.
Because ball valve core is higher to the seal request at water intake and water outlet place, as preferably, described outer spherical shell and interior straight tube are connected by welding.Welding back ball valve core sealing is better, thereby plays the effect that well prevents the current seepage.
In above-mentioned ball valve core, groove is by cracking on the spherical shell outside, forming through the punch ram distortion.Act on mutually with valve rod by the groove that cracks, form on the outer global shell through the punch ram distortion.Groove through being stamped to form guarantees the Percent of contact area height of itself and valve rod, and surface of contact is big, and such structure has also guaranteed the intensity of groove simultaneously.
Therefore, the utlity model has light weight, water-tight, the saving characteristics such as the cost of material is low of good airproof performance.
Description of drawings
Fig. 1 is the cross-sectional view of the ball valve core that provides of the utility model;
Fig. 2 is the form structure schematic representation of the ball valve core that provides of the utility model;
Among the figure, 1, interior straight tube; 2, outer spherical shell; 21, through hole; 22, contacting part; 3, groove; 31, vertical masonry joint.
Embodiment
Below by specific embodiment also in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
As depicted in figs. 1 and 2, outside straight tube 1 is inserted in in ball valve core of the present utility model in the through hole 21 of spherical shell 2, the two ends contacting part 22 of interior straight tube 1 and outer spherical shell 2 is fixed together by welding, interior straight tube 1 all is the spherical arc shape transition with the connection part of outer spherical shell 2, the middle part of outer spherical shell 2 has groove 3, groove 3 is a cuboid, the middle part that is in outer spherical shell 2 is vertical with interior straight tube 1, the bottom of groove 3 and interior straight tube 1 join, described outer spherical shell 2 and interior straight tube 1 connect into spool, and described spool is a hollow shell.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as interior straight tube 1, outer spherical shell 2, through hole 21, contacting part 22, groove 3, vertical masonry joint 31 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (3)
1, a kind of ball valve core, be spherical, has a through hole (21) that connects its center, its surface has one and is used for the groove (3) that matches with valve rod, it is characterized in that, described ball valve core by the outer spherical shell (2) that is spherical shell shape and be cylindraceous in straight tube (1) formed, both are fixed together and form a hollow body, described through hole (21) is the endoporus of interior straight tube (1), and described groove (3) is opened on outer spherical shell (2).
2, ball valve core according to claim 1 is characterized in that, described outer spherical shell (2) is connected by welding with interior straight tube (1).
3, ball valve core according to claim 1 and 2 is characterized in that, described groove (3) is by cracking on the spherical shell (2) outside, forming through the punch ram distortion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106649 CN200940703Y (en) | 2006-08-14 | 2006-08-14 | Ball valve core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106649 CN200940703Y (en) | 2006-08-14 | 2006-08-14 | Ball valve core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200940703Y true CN200940703Y (en) | 2007-08-29 |
Family
ID=38746880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620106649 Expired - Fee Related CN200940703Y (en) | 2006-08-14 | 2006-08-14 | Ball valve core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200940703Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246950A (en) * | 2016-08-23 | 2016-12-21 | 成都欧浦特控制阀门有限公司 | A kind of ball valve core being applicable to Korrosionsmedium |
| CN109866092A (en) * | 2018-11-28 | 2019-06-11 | 自贡硬质合金有限责任公司 | A kind of ball valve processing method |
-
2006
- 2006-08-14 CN CN 200620106649 patent/CN200940703Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246950A (en) * | 2016-08-23 | 2016-12-21 | 成都欧浦特控制阀门有限公司 | A kind of ball valve core being applicable to Korrosionsmedium |
| CN109866092A (en) * | 2018-11-28 | 2019-06-11 | 自贡硬质合金有限责任公司 | A kind of ball valve processing method |
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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: 20070829 Termination date: 20090914 |