CN214367887U - Novel sealing structure for ball valve - Google Patents
Novel sealing structure for ball valve Download PDFInfo
- Publication number
- CN214367887U CN214367887U CN202021787582.XU CN202021787582U CN214367887U CN 214367887 U CN214367887 U CN 214367887U CN 202021787582 U CN202021787582 U CN 202021787582U CN 214367887 U CN214367887 U CN 214367887U
- Authority
- CN
- China
- Prior art keywords
- ball valve
- sealed
- case
- rubber layer
- layer
- 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.)
- Active
Links
Images
Landscapes
- Details Of Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a novel seal structure for ball valve, including disk seat and case, be equipped with sealed the pad between disk seat and the case, sealed inside of filling up is the rubber layer, and the sealed one side that contacts with the case that fills up is equipped with the polytetrafluoroethylene layer, the polytetrafluoroethylene layer be the outside of arc parcel on the rubber layer. The surface of the rubber layer is wrapped by the polytetrafluoroethylene layer, so that the surface roughness of the sealing gasket is reduced, the torque in use is lightened, the original 18NM is reduced to 12NM when no pressure exists, and the original 30NM is reduced to 18NM when pressure exists. Meanwhile, the rubber has the advantages of resilience and wear resistance of the PTFE, and the service life is prolonged.
Description
Technical Field
The utility model relates to a novel seal structure for ball valve.
Background
In order to guarantee the sealing performance of the ball valve, a sealing ring needs to be additionally arranged between the valve core and the valve seat, but the traditional sealing ring is difficult to give consideration to resilience and sealing performance due to the limitation of the material of the traditional sealing ring.
And after the ball valve is used for a long time, due to frequent opening and closing, the abrasion of a sealing ring is often serious, so that the sealing performance of the ball valve is reduced, and the surface of the sealing ring made of rubber can be corroded after the sealing ring is soaked for a long time in an acid-base environment, so that the sealing performance of the ball valve is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above prior art not enough, combine mechanism analysis, provide a better seal structure.
The utility model provides a novel seal structure for ball valve, includes disk seat and case, is equipped with sealed the pad between disk seat and the case, the inside of sealed pad is the rubber layer, and one side that sealed pad and case contacted is equipped with the polytetrafluoroethylene layer, the polytetrafluoroethylene layer be the outside of arc parcel on the rubber layer.
Preferably, the inner wall of the valve seat is provided with an annular stem protruding outwards in an annular shape, and the top of the annular stem abuts against the rubber layer of the sealing gasket. The sealing gasket is extruded and deformed by the annular stem, so that the sealing performance of the integral ball valve is improved.
Preferably, the upper end of the valve seat is provided with a transverse handle.
Preferably, the end of the handle is made of bakelite.
Preferably, a plug is arranged right below the valve core.
Has the advantages that:
the surface of the rubber layer is wrapped by the polytetrafluoroethylene layer, so that the surface roughness of the sealing gasket is reduced, the torque in use is lightened, the original 18NM is reduced to 12NM when no pressure exists, and the original 30NM is reduced to 18NM when pressure exists. Meanwhile, the rubber has the advantages of resilience and wear resistance of the PTFE, and the service life is prolonged.
Drawings
FIG. 1 is a schematic structural view of a novel sealing structure for a ball valve;
FIG. 2 is a schematic view of the structure at the sealing structure;
FIG. 3 is an enlarged view of portion A of FIG. 1;
1. the sealing gasket 11, the rubber layer 12, the polytetrafluoroethylene layer 2, the valve core 3, the valve seat 4 and the annular stem.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.
As shown in fig. 1-3, a novel sealing structure for a ball valve comprises a valve seat 3 and a valve core 2, wherein a transverse handle is arranged at the upper end of the valve seat 3, the end part of the handle is made of bakelite, and a plug is arranged right below the valve core.
Be equipped with sealed 1 between disk seat 3 and the case 2, the inside of sealed 1 is rubber layer 11, and the one side that sealed 1 and case 2 contacted is equipped with polytetrafluoroethylene layer 12, polytetrafluoroethylene layer 12 be the outside of arc parcel at rubber layer 11.
The inner wall of the valve seat 3 is provided with an annular stem 4 which protrudes outwards in an annular shape, and the top of the annular stem 4 abuts against the rubber layer 11 of the sealing gasket 1.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a novel seal structure for ball valve, includes disk seat and case, its characterized in that is equipped with sealed the pad between disk seat and the case, sealed inside of filling up is the rubber layer, and the sealed one side that contacts with the case that fills up is equipped with the polytetrafluoroethylene layer, the polytetrafluoroethylene layer be the outside of arc parcel on the rubber layer, be equipped with on the inner wall of disk seat and be the outside convex cyclic annular stem of annular, the top butt of cyclic annular stem is on sealed rubber layer of filling up.
2. A novel seal arrangement for a ball valve according to claim 1, wherein the upper end of the valve seat is provided with a transverse handle.
3. A novel seal structure for a ball valve according to claim 2, characterized in that the end of the handle is made of bakelite.
4. The novel sealing structure for the ball valve according to claim 1, wherein a plug is arranged right below the valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021787582.XU CN214367887U (en) | 2020-08-25 | 2020-08-25 | Novel sealing structure for ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021787582.XU CN214367887U (en) | 2020-08-25 | 2020-08-25 | Novel sealing structure for ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214367887U true CN214367887U (en) | 2021-10-08 |
Family
ID=77931040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021787582.XU Active CN214367887U (en) | 2020-08-25 | 2020-08-25 | Novel sealing structure for ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214367887U (en) |
-
2020
- 2020-08-25 CN CN202021787582.XU patent/CN214367887U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208687000U (en) | A kind of two way seal floating hard seal ball valve spring is against pressure and structure | |
| CN214367887U (en) | Novel sealing structure for ball valve | |
| CN201705982U (en) | High-temperature wear-resistant ball valve | |
| CN212429817U (en) | Overpressure preventing structure for valve cover lengthened inner cavity of low-temperature ball valve | |
| CN201047459Y (en) | Durable composite sealed type valve | |
| CN215214847U (en) | Hard sealing ball valve with lip-shaped sealing structure | |
| CN217271983U (en) | Pneumatic angle seat valve | |
| CN211951555U (en) | Y-shaped soft sealing energy-saving stop check valve | |
| CN203214906U (en) | Midline butterfly valve | |
| CN201047463Y (en) | Valve stem nut having composite seal function | |
| CN210372100U (en) | Novel elastic sealing structure | |
| CN202790659U (en) | Multifunctional spring seat of ball valve | |
| CN201531641U (en) | Combined sealing stationary type bullet valve | |
| CN201373112Y (en) | Constrained seal cut-off valve | |
| CN220134661U (en) | Ball valve | |
| CN201539577U (en) | Inverted umbrella-shaped valve core valve with high sealing property | |
| CN101368628A (en) | Combination sealing and fixing type ball valve | |
| CN209818785U (en) | Anti-leakage ball valve | |
| CN2926693Y (en) | Sealing structure of butterfly valve | |
| CN210716004U (en) | Butterfly valve sealing structure | |
| CN202501097U (en) | Novel positive axial sealing electromagnetic valve | |
| CN214222139U (en) | Stop valve with high sealing performance | |
| CN215596452U (en) | Combined sealing structure of eccentric half ball valve | |
| CN212360828U (en) | Integral check valve clack | |
| CN216923254U (en) | Valve sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |