CN2566076Y - Hard sealed ball valve - Google Patents
Hard sealed ball valve Download PDFInfo
- Publication number
- CN2566076Y CN2566076Y CN 02278729 CN02278729U CN2566076Y CN 2566076 Y CN2566076 Y CN 2566076Y CN 02278729 CN02278729 CN 02278729 CN 02278729 U CN02278729 U CN 02278729U CN 2566076 Y CN2566076 Y CN 2566076Y
- Authority
- CN
- China
- Prior art keywords
- valve
- ball valve
- ball
- groove
- valve seat
- 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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- Taps Or Cocks (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a hard sealed ball valve, which comprises a valve body, a valve rod, a ball body, an upper valve seat and a lower valve seat, wherein, a groove is arranged between the upper valve seat and the lower valve seat, and an elastic sealing element is arranged in the groove. Since the elastic sealing element is pressed on the movable valve seats of the ball valve after adopting the utility model, variation caused by heat expansion and cold contraction and the gap between the ball body and the movable valve seats due to friction can be regulated by elasticity, and the ball valve can be tightly embraced with the movable valve seats. The problem of the leakage of the ball valve is solved, and the service life of the ball valve is prolonged. In addition, since the ball body is pressed on a sealing surface by the elastic sealing element, any impurity can not enter to damage the sealing surface, and thus the service life of the ball valve is prolonged.
Description
Technical field
The utility model relates to a kind of valve of controlling plumbing fixtures media flow, especially a kind of hard seal ball valve.
Background technique
The seal arrangement of ordinary ball valve generally all is based on soft seal, sealing seat generally is that these have flexible nonmetallic material and make with teflon or rubber, by them spool is clamped, reach sealing, but these nonmetallic material can not be born high temperature or high pressure.Thereby dwindled their using scope greatly, therefore just require to use hard seal ball valve to adapt to the High Temperature High Pressure working environment, because its valve seat and spheroid all are to adopt special Hardmetal materials to make, sealing is pressed on the spheroid by valve seat and realizes, but when opening and closing valve, the spheroid and the contact surface of valve seat produce strong sliding friction at every turn, the damage sealing surface, time one length will form the gap, thereby causes leaking, and has a strong impact on the working life of ball valve.In use easily enter impurity in addition between valve rod and the valve body, make valve seat produce the working life that displacement also can influence valve body.
The model utility content
The purpose of this utility model provides the hard seal ball valve of a kind of novel structure, good seal performance long service life.
The technical solution of the utility model is: a kind of hard seal ball valve, comprise valve body, valve rod, spheroid, upper valve base and lower valve base, and between upper valve base and valve body, have a groove, an elastomer seal is housed in groove.
Above-mentioned elastomer seal is a wavy spring.
Above-mentioned elastomer seal is the dish spring.
After adopting the technical program, because elastomer seal is pressed in above the movable valve seat of ball valve, the gap that spheroid that the variation that so just reliable elasticity adjustment causes owing to expanding with heat and contract with cold and other reason cause and movable valve base chamber cause because of friction, all the time guarantee ball valve and the tight obvolvent of movable valve seat, thereby solve the leakage problem of ball valve, improve the working life of ball valve.Owing to elastomer seal spheroid is pressed on the sealing surface in addition, any impurity can't enter the damage sealing surface, thereby improves the working life of ball valve.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Structure of the present utility model comprises valve body 1, card orchid 6, transmission shaft 7 as shown in Figure 1, stud bolt 8,10, supporting plate 11, interior six square bolts 12, bracket tube 13, seal ring 14, packing pad 15, valve rod 3, lower valve base 2, upper valve base 5 and spheroid 4, between spheroid 4 and upper valve base 5, have a groove 16, wavy spring 9 or dish spring 9 are housed in groove 16.
Claims (3)
1, a kind of hard seal ball valve comprises valve body, valve rod, spheroid, upper valve base and lower valve base, it is characterized in that: have a groove between upper valve base and valve body, an elastomer seal is housed in groove.
2, hard seal ball valve according to claim 1 is characterized in that: above-mentioned elastomer seal is a wavy spring.
3, hard seal ball valve according to claim 1 is characterized in that: above-mentioned elastomer seal is the dish spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02278729 CN2566076Y (en) | 2002-08-09 | 2002-08-09 | Hard sealed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02278729 CN2566076Y (en) | 2002-08-09 | 2002-08-09 | Hard sealed ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2566076Y true CN2566076Y (en) | 2003-08-13 |
Family
ID=33741967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02278729 Expired - Fee Related CN2566076Y (en) | 2002-08-09 | 2002-08-09 | Hard sealed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2566076Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287562A (en) * | 2011-07-20 | 2011-12-21 | 梁敬喜 | Structure of valve sealing surface |
| CN104373627A (en) * | 2013-08-16 | 2015-02-25 | 浙江盾安人工环境股份有限公司 | Four-way valve |
-
2002
- 2002-08-09 CN CN 02278729 patent/CN2566076Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287562A (en) * | 2011-07-20 | 2011-12-21 | 梁敬喜 | Structure of valve sealing surface |
| CN104373627A (en) * | 2013-08-16 | 2015-02-25 | 浙江盾安人工环境股份有限公司 | Four-way 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 |