CN2651536Y - Medium pressurized sealing burtterfly valve - Google Patents
Medium pressurized sealing burtterfly valve Download PDFInfo
- Publication number
- CN2651536Y CN2651536Y CN 200320101128 CN200320101128U CN2651536Y CN 2651536 Y CN2651536 Y CN 2651536Y CN 200320101128 CN200320101128 CN 200320101128 CN 200320101128 U CN200320101128 U CN 200320101128U CN 2651536 Y CN2651536 Y CN 2651536Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- inner chamber
- communicated
- gasket ring
- 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
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to a medium pressure sealing butterfly valve which comprises a drive device 1, a valve body 2, a butterfly plate 3 and a valve body gasket ring 4 and is characterized in that the section area of the valve body gasket ring 4 is convex or tripod-shaped, the valve body gasket ring 4 is provided with an inner chamber 5, the inner chamber 5 is provided with a pipeline 6 communicated with the exterior, and the valve body 2 is provided with a convex groove matched with the shaped of the valve body gasket ring 4; the exterior of the valve body 2 is provided with a two-phase three-way reversing valve, an O1 opening of the reversing valve is communicated with a pressure bearing side P2 of the valve through the reversing valve, an O2 opening is communicated with the pipeline communicated with the exterior of the inner chamber of the valve body gasket ring, and an O3 opening is communicated with a non-pressure bearing side P1 of the valve; the sealing butterfly valve has the good sealing effect and the convenient replacement, and saves the time.
Description
The utility model relates to the sealing pair of a kind of butterfly valve, particularly a kind of butterfly valve.
In prior art, be the disclosed a kind of medium pressurising seal butterfly valve of ZL95230750.2 as the patent No., shown in figure one, its principle core is that valve seals closely is pressed in by pressure ring and realizes sealing purpose on the valve body, shown in figure two.It is quite big that said structure exists the difficulty of changing valve seals in practice, causes the relatively poor problem of practicability.
The purpose of this utility model is in order to overcome above-mentioned shortcoming, on the basis of the disclosed a kind of medium pressurising seal butterfly valve of ZL95230750.2, proposing a kind of valve seals of special shape that adopts is sleeved on the valve body, utilize the expansive force of self medium, thus the medium pressurising seal butterfly valve of the purpose that valve seals and valve body is combined closely reach valve seal.
The purpose of this utility model is achieved in that
A kind of medium pressurising seal butterfly valve, comprise transmission device, valve body, butterfly plate and valve seals, the sectional area that it is characterized in that described valve seals is to be convex or ancient cooking vessel shape, inner chamber is arranged, and inner chamber has and the extraneous pipeline that is connected, the concave slot that has together the shape with valve seals match on the valve body.Valve body has a two-bit triplet selector valve, its O outward
1Mouth is by the pressure-bearing side P of selector valve and valve
2Be connected O
2Mouth is connected O with the pipeline that the existing external world of valve seals inner chamber is connected
3Mouthful with the non-pressure-bearing side P of valve
1Be connected.
One side of concave slot on the described valve body is a dismountable baffle ring.
When butterfly plate is in the closed position, petcock O
1O
2Mouth is communicated with, and P
1P
2Be connected on the non-pressure pocket and the pressure pocket of valve respectively.Under differential pressure action, change-over valve core is pushed to low voltage side, and the valve pressure pocket is communicated with valve seals, realizes the pressurising sealing.Opening or closing in the closed procedure at butterfly plate, if manually-operated gate, petcock handle under the dynamic pressure then on the offensive; If electric valve, then the petcock electromagnet of electric valve can be automatically and the motor synchronization motion on the transmission device behind the enable switch, makes petcock O
2O
3Mouth communicates, and the high-pressure medium in the valve seals can enter the non-pressure-bearing side of valve.Because valve seals is the pressurising protuberance no longer, therefore greatly reduce the frictional force between sealing pair, advance face and reach reduction keying moment, the purpose of Protective valve body sealing ring.
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is that the patent No. is the disclosed a kind of medium pressurising seal butterfly valve of ZL95230750.2;
Fig. 2. be that the patent No. is the sealing pair I partial enlarged drawing of the disclosed a kind of medium pressurising seal butterfly valve of ZL95230750.2;
Fig. 3. be the sealing pair I partial enlarged drawing of a kind of medium pressurising seal butterfly valve disclosed in the utility model;
Fig. 4 is a kind of medium pressurising seal butterfly valve sealing principle figure disclosed in the utility model.
A kind of medium pressurising seal butterfly valve described in the utility model comprises transmission device (1), valve body (2), butterfly plate (3) and valve seals (4).As shown in Figure 3, wherein the sectional area of valve seals (4) is to be convex or ancient cooking vessel shape, an inner chamber (5) is arranged, and inner chamber (5) has a pipeline (6) that is connected with the external world, the concave slot that has together the shape with valve seals (4) match on the valve body (2), the sizableness of concave slot adds its inner chamber (5) in valve seals (4), one side its is demountable baffle ring (7).As shown in Figure 4, the outer two-bit triplet selector valve in addition of valve body (2), its O
1Mouth is by the pressure-bearing side P of selector valve and valve
2Be connected O
2Mouth is connected O with the pipeline (6) that the inner chamber (5) of valve seals (4) is connected with the external world
3Mouthful with the non-pressure-bearing side P of valve
1Be connected.After the utility model has used certain hour, when needing to change valve seals (4), as long as the baffle ring (7) on the valve body (2) is unloaded, take out old valve seals (4), again change new valve seals (4), load onto baffle ring (7) just can, very convenient saving time.
Claims (2)
1, a kind of medium pressurising seal butterfly valve, comprise transmission device 1, valve body 2, butterfly plate 3 and valve seals 4, the sectional area that it is characterized in that described valve seals 4 is to be convex or ancient cooking vessel shape, inner chamber 5 is arranged, and inner chamber 5 have one with the extraneous pipeline 6 that is connected, the concave slot that has together the shape with valve seals 4 match on the valve body 2.
2, medium pressurising seal butterfly valve according to claim 1, one side it is characterized in that on the described valve body 2 concave slot be demountable baffle ring 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320101128 CN2651536Y (en) | 2003-10-07 | 2003-10-07 | Medium pressurized sealing burtterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320101128 CN2651536Y (en) | 2003-10-07 | 2003-10-07 | Medium pressurized sealing burtterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2651536Y true CN2651536Y (en) | 2004-10-27 |
Family
ID=34339525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320101128 Expired - Fee Related CN2651536Y (en) | 2003-10-07 | 2003-10-07 | Medium pressurized sealing burtterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2651536Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210216A (en) * | 2017-07-05 | 2019-01-15 | 王宇 | A kind of valve seal method |
| CN109780230A (en) * | 2019-04-04 | 2019-05-21 | 杭州蓝圣阀门有限公司 | A kind of antifreeze pressure release butterfly valve |
-
2003
- 2003-10-07 CN CN 200320101128 patent/CN2651536Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210216A (en) * | 2017-07-05 | 2019-01-15 | 王宇 | A kind of valve seal method |
| CN109780230A (en) * | 2019-04-04 | 2019-05-21 | 杭州蓝圣阀门有限公司 | A kind of antifreeze pressure release butterfly valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2651536Y (en) | Medium pressurized sealing burtterfly valve | |
| CN216742901U (en) | Butterfly valve capable of being opened and closed stably | |
| CN210240621U (en) | Plug valve capable of being used under high pressure difference | |
| CN210088025U (en) | Valve seat sealing structure of rubber-lined butterfly valve | |
| CN202326486U (en) | Leakage-free type pneumatic control hydraulic reversing valve | |
| CN201661697U (en) | Soft-sealing butterfly valve | |
| CN205013733U (en) | Pressure differential self sealss formula plug valve | |
| CN211599705U (en) | Non-rising stem elastic seat seal gate valve with anti-theft function | |
| CN2307962Y (en) | Ball valve | |
| CN2351626Y (en) | Wedge double-way sealing ball valve | |
| CN2506827Y (en) | Self-holder adjustable ball valve | |
| CN201934653U (en) | Sealing ring | |
| CN2689000Y (en) | Soft and hard sealed eccentric semi-ball valves | |
| CN201739553U (en) | Elastic valve seat of ball valve | |
| CN2382912Y (en) | Nesting stop cock | |
| CN2097929U (en) | Y-type gas-filled seal ring | |
| CN2308772Y (en) | Sleeve sealing anti-leakage valve | |
| CN2434496Y (en) | Three lead screw type pipeline blankoff flange valve | |
| CN2229997Y (en) | Rolling type gate valve | |
| CN212429781U (en) | Flexible sealing structure for hydraulic element | |
| CN216692224U (en) | Rubber gate valve rubber flashboard seal structure and rubber gate valve | |
| CN208858948U (en) | Double bias full lining bidirectional sealed line with rubber butterfly valves | |
| CN2314190Y (en) | Magnetic driving ball valve | |
| CN216361144U (en) | High-pressure through-shaft type center line butterfly valve | |
| CN1074516C (en) | Ball valve |
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 |