CN203131102U - Valve core of ball valve - Google Patents
Valve core of ball valve Download PDFInfo
- Publication number
- CN203131102U CN203131102U CN 201320106113 CN201320106113U CN203131102U CN 203131102 U CN203131102 U CN 203131102U CN 201320106113 CN201320106113 CN 201320106113 CN 201320106113 U CN201320106113 U CN 201320106113U CN 203131102 U CN203131102 U CN 203131102U
- Authority
- CN
- China
- Prior art keywords
- hole
- valve core
- ball
- outer ball
- outer spheroid
- 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 valve core of a ball valve and belongs to the technical field of valves. The valve core of the ball valve comprises an outer ball and an inner straight pipe; the middle of the outer ball is hollow; a through hole is formed in the outer ball; cross sections of the upper end and the lower end of the through hole are in round shapes which are parallel to and identical with each other; a notch which penetrates through the internal and external of the outer ball is formed on the outer ball; the inner straight pipe is embedded in the through hole of the outer ball and junction positions are closely attached; space between the inner straight pipe and the through hole of the outer ball is transitionally fit; the inner straight pipe is directly pressed into the through hole of the outer ball through a hydraulic device; the notch is formed on a large circle of the outer ball; and a cross section of the large circle is parallel to the cross sections of the upper end and the lower end of the through hole. The valve core of the ball valve has the advantages of solving the technical problems that the existing valve core of the ball valve in the market is poor in seal performance, short in service life and high in ex-factory cost, being good in seal performance and long in service life and enabling the ex-factory cost to be reduced.
Description
Technical field
The utility model relates to valve, specifically refers to a kind of ball valve core.
Background technique
As everyone knows, the structure of present ball valve core and defective are: the first, and the notch bottom of offering on the spheroid outside causes waste of material for what seal, and cost of material rises; The second, being connected by welding fabrication between outer spheroid and the interior straight tube needs chamfering, and sealing is poor, and working life is short; The 3rd, an end of interior straight tube needs flange to be fixed on the outer spheroid; Second directly causes working efficiency low with thirdly operation is loaded down with trivial details, and the cost that dispatches from the factory rises.
The model utility content
The purpose of this utility model is in order to address the above problem, a kind of ball valve core cheaply to be provided.
For achieving the above object, the utility model provides following technological scheme: a kind of ball valve core, become empty outer spheroid and interior straight tube in the middle of comprising, the inside of described outer spheroid offers through hole, the shape of cross section of the upper/lower terminal of this through hole is the circle that is parallel to each other and equates, offers the notch that runs through the ectosphere inside and outside on the described outer spheroid; Straight tube is entrenched in the through hole of this outer spheroid and the junction fits tightly in described.
Be transition fit between above-mentioned interior straight tube and the through hole of outer spheroid.
Above-mentioned interior straight tube directly is pressed into to the through hole of outer spheroid by hydraulic equipment.
Above-mentioned notch is opened on the great circle of outer spheroid, the transverse cross-section parallel of the cross section of this great circle and the upper/lower terminal of through hole.
The utility model beneficial effect compared to existing technology is: offer the notch that runs through the ectosphere inside and outside on the outer spheroid of the utility model, reduced cost of material, reduced the cost that dispatches from the factory; Interior straight tube directly is pressed into to the through hole of outer spheroid by hydraulic equipment, and sealing is good, and long service life need not chamfering and flange, has reduced production process, has improved working efficiency, thereby has further reduced the cost that dispatches from the factory.
Description of drawings
Fig. 1 is overall structure schematic representation of the present utility model;
Fig. 2 is the A-A direction sectional view of Fig. 1;
Fig. 3 is the B-B direction sectional view of Fig. 1;
Fig. 4 is the sectional view of outer spheroid;
Fig. 5 is the sectional view of interior straight tube.
The number in the figure implication:
The outer spheroid of 1-; Straight tube in the 2-; The 3-through hole; The 4-notch.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Referring to Fig. 1-shown in Figure 5, a kind of ball valve core, become empty outer spheroid 1 and interior straight tube 2 in the middle of comprising, the inside of described outer spheroid 1 offers through hole 3, the shape of cross section of the upper/lower terminal of this through hole 3 is the circle that is parallel to each other and equates, offers the notch 4 that runs through the ectosphere inside and outside on the described outer spheroid 1; Straight tube 2 is entrenched in the through hole 3 of this outer spheroid 1 and the junction fits tightly in described.
Further, between the through hole 3 of above-mentioned interior straight tube 2 and outer spheroid 1 for excessively to cooperate.
Further, above-mentioned interior straight tube 2 directly is pressed into to the through hole 3 of outer spheroid 1 by hydraulic equipment.
Further, above-mentioned notch 4 is opened on the great circle of outer spheroid 1, the transverse cross-section parallel of the upper/lower terminal of the cross section of this great circle and through hole 3.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and modification, these of above-mentioned hypothesis improve and modification also should be considered as protection domain of the present utility model.
Claims (4)
1. ball valve core, it is characterized in that: become empty outer spheroid and interior straight tube in the middle of comprising, the inside of described outer spheroid offers through hole, the shape of cross section of the upper/lower terminal of this through hole is the circle that is parallel to each other and equates, offers the notch that runs through the ectosphere inside and outside on the described outer spheroid; Straight tube is entrenched in the through hole of this outer spheroid and the junction fits tightly in described.
2. ball valve core according to claim 1 is characterized in that: be transition fit in described between the through hole of straight tube and outer spheroid.
3. ball valve core according to claim 2 is characterized in that: straight tube directly is pressed into to the through hole of outer spheroid by hydraulic equipment in described.
4. ball valve core according to claim 1, it is characterized in that: described notch is opened on the great circle of outer spheroid, the transverse cross-section parallel of the cross section of this great circle and the upper/lower terminal of through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320106113 CN203131102U (en) | 2013-03-08 | 2013-03-08 | Valve core of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320106113 CN203131102U (en) | 2013-03-08 | 2013-03-08 | Valve core of ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203131102U true CN203131102U (en) | 2013-08-14 |
Family
ID=48939082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320106113 Expired - Fee Related CN203131102U (en) | 2013-03-08 | 2013-03-08 | Valve core of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203131102U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115163A (en) * | 2013-03-08 | 2013-05-22 | 杨建国 | Ball valve core and production method thereof |
-
2013
- 2013-03-08 CN CN 201320106113 patent/CN203131102U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115163A (en) * | 2013-03-08 | 2013-05-22 | 杨建国 | Ball valve core and production method thereof |
| CN103115163B (en) * | 2013-03-08 | 2015-10-28 | 杨建国 | A kind of ball valve core and production method thereof |
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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: 20130814 Termination date: 20150308 |
|
| EXPY | Termination of patent right or utility model |