CN202349246U - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN202349246U CN202349246U CN2011204740825U CN201120474082U CN202349246U CN 202349246 U CN202349246 U CN 202349246U CN 2011204740825 U CN2011204740825 U CN 2011204740825U CN 201120474082 U CN201120474082 U CN 201120474082U CN 202349246 U CN202349246 U CN 202349246U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- ball valve
- end surface
- ball
- 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. The ball valve comprises a valve body and a valve rod, wherein the valve body is provided with a valve rod bushing and a reducing part extends toward the center from the flat end surface of the valve rod bushing; the valve rod is matched with the valve rod bushing, the upper end surface of the middle part of the valve rod is in contact with the lower end surface of the reducing part of the valve rod bushing and the valve rod is rotatably fixed in a center hole of the valve rod bushing. The ball valve is characterized in that a limit part extends toward the center from the reducing part of the valve rod bushing; the upper end surface of the valve rod is provided with a rotating block matched with the limit part; and the biggest outer diameter of the rotating block is smaller than the inside diameter of the reducing part and greater than the inside diameter of the limit part. Compared with the existing ball valve, the ball valve provided by the utility model has the advantages that the rotation limit of the valve rod can be realized by improvement on the structures of the valve rod bushing and the valve rod, the ball valve is compact in structure, simple to process, lower in cost and stronger in practicability.
Description
Technical field
The present invention relates to the valve type product, the ball valve that especially rotates with valve rod.
Background technique
Ball valve is extensive use in building pipe, along with the development of commodity economy, to popular valve require increasingly highly, like the aspects such as structure of cost, safety, compact and reasonable higher requirement is being proposed.Ball valve valve rod limit structure 1 ' in the market is mostly as shown in Figure 1, is provided with projection 4 ' in the valve stem casing 2 ' outside of valve body; Handle 3 ' actuate valve stem 5 ' is rotated, and goes up the groove that cooperates with projection 4 ' 6 ' the spacing rotation angle that is provided with through handle 3 ', plays and fastens or open the maximum effect that puts in place of circulation.Such valve rod limit structure, projection 4 ' processing cost and cost of material are high, and spacing position and quantity difference, and the handle versatility that cooperates with it is poor.
The model utility content
The utility model provides a kind of ball valve of novel valve rod limit structure to the defective of the valve rod limit structure of existing ball valve, the cancellation spacing block set; Limit structure is improved in the structure of valve rod and valve stem casing; Compact practical, the low-cost defective that solves on the said structure has better practicability.
For realizing above-mentioned purpose, the present invention adopts following technological scheme:
A kind of ball valve comprises that one is provided with the valve body of valve stem casing, and the valve stem casing planar end surface is extended with a diameter shrinkage part to the center; The valve rod that cooperates with each valve stem casing; The upper-end surface of valve rod intermediate portion contacts with the diameter shrinkage part lower end surface of valve stem casing, and valve rod is rotatable as to be fixed in the valve stem casing mesopore, it is characterized in that: the diameter shrinkage part at valve stem casing is extended with stop portion to the center; Have a rotating block that cooperates with stop portion on the upper-end surface of valve rod, the rotating block maximum outside diameter is less than the diameter shrinkage part inside diameter and greater than the stop portion inside diameter.
The technological scheme that the utility model can also adopt:
Described stop portion cooperates formation 90 degree angle of swing with rotating block.
Above-mentioned stop portion adopts drawing.
A kind of ball valve of model utility of the present invention, the respective outer side edges realization rotary stopper through stop portion and valve rod need not increase accessory and small product size, and compact structure and improvement cost are low; Can whether put in place by direct feedback position during rotation, have advantages of high practicability.
Description of drawings
The limit structure schematic representation of Fig. 1, conventional ball valve;
Fig. 2, the utility model embodiment's one H type ball valve schematic perspective view;
The ball valve limit structure cross-sectional schematic of Fig. 3, the foregoing description;
Fig. 4, the utility model embodiment's two limit structure cross-sectional schematic;
Fig. 5, the utility model embodiment's three limit structure cross-sectional schematic.
Embodiment
With reference to the accompanying drawings the ball valve preferred embodiment of the utility model is done and further described.
Fig. 2 is the H type ball valve schematic perspective view of the utility model, and this H type ball valve is made up of two identical ball valves, is the limit structure of convenient explanation ball valve, adopts such ball valve to do an explanation.Ball valve comprises a valve body 1, and valve body 1 is provided with two valve stem casings 2, respectively on different valves.Valve stem casing 2 has a mesopore 11; The planar end surface 3 of valve stem casing 2 upper ends is extended with a diameter shrinkage part 4 to the center; Diameter shrinkage part 4 is extended with stop portion 5 to the center, and stop portion 5 is projections of a symmetry, shown in Fig. 3 limit structure cross-sectional schematic; Stop portion 5 adopts the punch process moulding, also can adopt forge hot or moulding by casting.Adopt mounting structure down with valve stem casing 2 supporting valve rods 6, reduced valve thimble, intermediate portion 7 diameters of valve rod 6 are greater than the diameter of diameter shrinkage part 4, and intermediate portion 7 is with two seal rings 8.The upper-end surface 9 of the intermediate portion 7 of valve rod 6 contacts with the indentation part of valve stem casing 24 lower end surfaces 10, makes that valve rod 6 is rotatable as to be fixed in valve stem casing 2 mesopores 11.The upper-end surface 9 of valve rod 2 has a rotating block 12 that cooperates with stop portion 5.Rotating block 12 is integral with valve rod 6, becomes " one " font substantially.Rotating block 12 maximum outside diameters are less than the inside diameter of diameter shrinkage part 4, and greater than the inside diameter of stop portion 5, make when rotary valve rod 6; Valve rod 6 receives the angle of swing restriction in the predetermined angular scope; General stop portion 5 cooperates with rotating block 12, forms the reasonable angle of swing of 90 degree, satisfies valve ball 13 and opens and closes angle; Also can adjust stop portion 5 and rotating block 12 size and dimensions, form different amount according to special requirement.
Above-mentioned H type ball valve is used for panel radiator, and this limit structure can be used for single ball-valve structure equally, and general ball valve as shown in Figure 1 also can be used for hexagonal section micro ball valve etc. in addition.
The limit structure embodiment two of the utility model adopts structure as shown in Figure 4; Indentation part 4 at valve stem casing 2 is extended a projection 14 to the center; Some circular groove 15 is cut in valve rod 6 outer rings, and valve rod 6 spacing position external diameters are less than the internal diameter of diameter shrinkage part 4 and greater than projection 14 internal diameters, and part circular groove 15 external diameters are less than the projection external diameter; Part circular groove 15 forms with projection 14 and cooperates, and satisfies spacing requirement.
Limit structure embodiment three of the present invention can also adopt structure as shown in Figure 5; Indentation part 4 at valve stem casing 2 is extended a part of loop configuration 17 to the center; Valve rod 6 lateral resection most form circular groove 18, cooperate with part loop configuration 17, realize the spacing of valve rod several angle.
The ball valve of the novel limit structure of the utility model is compared with conventional ball valve, realizes the valve rod rotary stopper through the structure of improving valve stem casing and valve rod, compact structure, processing simply and cost lower, have stronger practicability.
Claims (3)
1. a ball valve comprises that one is provided with the valve body (1) of valve stem casing (2), and valve stem casing (2) planar end surface (3) is extended with a diameter shrinkage part (4) to the center; The valve rod (6) that cooperates with each valve stem casing (2); The upper-end surface (9) of valve rod (6) intermediate portion (7) contacts with diameter shrinkage part (4) lower end surface (10) of valve stem casing (2); Valve rod (6) is rotatable as to be fixed in valve stem casing (2) mesopore (11), it is characterized in that: the diameter shrinkage part (4) in valve stem casing (2) is extended with stop portion (5) to the center; Have a rotating block (12) that cooperates with stop portion (5) on the upper-end surface (9) of valve rod (6), rotating block (12) maximum outside diameter is less than diameter shrinkage part (4) inside diameter and greater than stop portion (5) inside diameter.
2. a kind of ball valve as claimed in claim 1 is characterized in that: described stop portion (5) cooperates formation 90 degree angle of swing with rotating block (12).
3. according to claim 1 or claim 2 a kind of ball valve, it is characterized in that: described stop portion (5) adopts drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204740825U CN202349246U (en) | 2011-11-21 | 2011-11-21 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204740825U CN202349246U (en) | 2011-11-21 | 2011-11-21 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202349246U true CN202349246U (en) | 2012-07-25 |
Family
ID=46538253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204740825U Expired - Fee Related CN202349246U (en) | 2011-11-21 | 2011-11-21 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202349246U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909817A (en) * | 2016-06-04 | 2016-08-31 | 江苏神通阀门股份有限公司 | Ball valve rotation limit mechanism |
| CN114198522A (en) * | 2021-11-19 | 2022-03-18 | 吴忠仪表有限责任公司 | Floating ball valve rod shaft shoulder and blowout prevention shaft sleeve combination and mounting method thereof |
-
2011
- 2011-11-21 CN CN2011204740825U patent/CN202349246U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909817A (en) * | 2016-06-04 | 2016-08-31 | 江苏神通阀门股份有限公司 | Ball valve rotation limit mechanism |
| CN105909817B (en) * | 2016-06-04 | 2018-07-20 | 江苏神通阀门股份有限公司 | A kind of ball valve slewing limit mechanism |
| CN114198522A (en) * | 2021-11-19 | 2022-03-18 | 吴忠仪表有限责任公司 | Floating ball valve rod shaft shoulder and blowout prevention shaft sleeve combination and mounting 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: 20120725 Termination date: 20201121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |