CN201359108Y - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN201359108Y CN201359108Y CNU2009201145568U CN200920114556U CN201359108Y CN 201359108 Y CN201359108 Y CN 201359108Y CN U2009201145568 U CNU2009201145568 U CN U2009201145568U CN 200920114556 U CN200920114556 U CN 200920114556U CN 201359108 Y CN201359108 Y CN 201359108Y
- Authority
- CN
- China
- Prior art keywords
- valve rod
- conical surface
- valve
- cushion cap
- sealing
- 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
Links
- 238000012856 packing Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 13
- 239000000945 filler Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
Images
Landscapes
- Taps Or Cocks (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a ball valve, which comprises a valve body and a valve rod. A valve clack is connected with the lower end of the valve rod, an annular sealing cushion cap is arranged at the lower part of the valve rod, the upper edge of the annular sealing cushion cap is distributed along a conical surface, the valve rod is sheathed with a sealing ring, the lower surface of the sealing ring is provided with a ring-shaped conical surface which is matched with the conical surface upper edge of the annular sealing cushion cap. As the valve rod of the ball valve is sheathed with the sealing ring and the lower surface of the sealing ring is provided with the ring-shaped conical surface which is matched with the conical surface upper edge of the annular sealing cushion cap, the conical surface matching structure can achieve better sealing effect, and can also realize second sealing on the basis of packing sealing, and the sealing ring prevents the valve rod from swinging easily, so the control accuracy of the valve rod can be improved and the operation property is better.
Description
Technical field
The utility model relates to a kind of ball valve.
Background technique
Conventional ball valve generally comprises valve body and valve rod, and the valve rod lower end is connected with flap, and general valve rod and valve body place seal by filler is set.But this ball valve is tightly relatively poor by the guarantee row that one filler seals, and not have the encapsulation process measure of preparation to operate when revealing appears in this place, and the valve rod of this ball valve plays pendulum easily in addition, influences the accuracy of controlling.
Summary of the invention
Technical problem to be solved in the utility model provides the ball valve that the better and valve rod of a kind of sealability is difficult for teeter.
For this reason, the ball valve that the utility model provides comprises valve body and valve rod, the valve rod lower end is connected with flap, stem lower portion has the ring packing cushion cap, the upper edge of ring packing cushion cap is the conical surface and distributes, valve rod is with seal ring, and the seal ring lower surface has the circular cone that mates with the conical surface upper edge of ring packing cushion cap.
Because the valve rod of the ball valve that the utility model provides is with seal ring, and the seal ring lower surface has the circular cone that mates with the conical surface upper edge of ring packing cushion cap, the structure of cone match can reach better sealing effect, and can on the gland sealed basis, realize secondary seal, and the existence of seal ring can make not teeter easily of valve rod, thereby can improve the control accuracy of valve rod, and operability is better.
Description of drawings
The structure cross-sectional schematic of the ball valve that Fig. 1 provides.
Fig. 2 is the valve rod among Fig. 1 and the structure split schematic representation of seal ring.
Embodiment
As shown in Figure 1 and Figure 2, the ball valve that the utility model provides comprises valve body 1 and valve rod 2, valve rod 2 lower ends are connected with flap 3, valve rod 1 bottom has ring packing cushion cap 4, the upper edge of ring packing cushion cap 4 is the conical surface and distributes, valve rod 2 is with seal ring 5, and seal ring 5 lower surfaces have the circular cone 6 that mates with the conical surface upper edge of ring packing cushion cap 4.
Claims (1)
1, a kind of ball valve, comprise valve body (1) and valve rod (2), valve rod (2) lower end is connected with flap (3), it is characterized in that: valve rod (1) bottom has ring packing cushion cap (4), the upper edge of ring packing cushion cap (4) is the conical surface and distributes, described valve rod (2) is with seal ring (5), and seal ring (5) lower surface has the circular cone (6) that mates with the conical surface upper edge of ring packing cushion cap (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201145568U CN201359108Y (en) | 2009-02-27 | 2009-02-27 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201145568U CN201359108Y (en) | 2009-02-27 | 2009-02-27 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201359108Y true CN201359108Y (en) | 2009-12-09 |
Family
ID=41424872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201145568U Expired - Fee Related CN201359108Y (en) | 2009-02-27 | 2009-02-27 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201359108Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759059A (en) * | 2014-01-26 | 2014-04-30 | 重庆市伟岸测器制造股份有限公司 | Remote control valve |
| CN106051203A (en) * | 2016-07-13 | 2016-10-26 | 罗启明 | Stop valve |
-
2009
- 2009-02-27 CN CNU2009201145568U patent/CN201359108Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759059A (en) * | 2014-01-26 | 2014-04-30 | 重庆市伟岸测器制造股份有限公司 | Remote control valve |
| CN103759059B (en) * | 2014-01-26 | 2016-05-18 | 重庆市伟岸测器制造股份有限公司 | A kind of Remote control valve |
| CN106051203A (en) * | 2016-07-13 | 2016-10-26 | 罗启明 | Stop valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201359108Y (en) | Ball valve | |
| CN105626880A (en) | Soft and hard dual-sealing regulation valve | |
| CN205207745U (en) | Floating ball valve | |
| CN204985759U (en) | Double containment high performance plunger type baiting valve | |
| CN203670835U (en) | Bellows stop valve | |
| CN202144874U (en) | Construction of valve clack sealing surface | |
| CN201802905U (en) | Three-plate ball valve without dead angles | |
| CN105508644A (en) | Magnetic ball valve | |
| CN202252316U (en) | Sealing structure for valve rod | |
| CN205618715U (en) | Integral type screw thread ball valve | |
| CN203463688U (en) | Valve clack of stop valve | |
| CN105299256A (en) | Stainless steel magnetic ball valve | |
| CN203548931U (en) | High-temperature and high-pressure needle valve | |
| CN203549095U (en) | Stop valve | |
| CN202100789U (en) | Adjusting valve | |
| CN204114325U (en) | Deep seafloor valve | |
| CN202360754U (en) | Sealing gasket | |
| CN201582435U (en) | Ball valve | |
| CN204677880U (en) | A kind of one-way valve valve gap and valve rod elastic sealing structure | |
| CN201599486U (en) | Non-leakage sealing structure of valve rod | |
| CN204677778U (en) | A kind of needle type valve | |
| CN204328014U (en) | A kind of discharging valve of good seal performance | |
| CN202756605U (en) | High-tightness piston for engineering machinery | |
| CN203214898U (en) | Sealing structure of bottom valve | |
| CN203384409U (en) | Line-contact spherical surface sealing ring |
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: 20091209 Termination date: 20130227 |