CN215214847U - Hard sealing ball valve with lip-shaped sealing structure - Google Patents
Hard sealing ball valve with lip-shaped sealing structure Download PDFInfo
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- CN215214847U CN215214847U CN202121295566.3U CN202121295566U CN215214847U CN 215214847 U CN215214847 U CN 215214847U CN 202121295566 U CN202121295566 U CN 202121295566U CN 215214847 U CN215214847 U CN 215214847U
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- lip
- valve
- valve body
- disk seat
- sealing washer
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Abstract
The utility model provides a take lip seal structure's hard seal ball valve, is including the valve body that is provided with the disk seat, connects the spheroid of valve rod lower extreme and the hard seal cooperation of disk seat, has filled up the sealing washer between disk seat and valve body, and the lateral part of this sealing washer is concave inwards to form outer lip limit and interior lip limit, and outer lip limit contact valve body, interior lip limit contact disk seat form the lip seal additional strengthening. The utility model discloses a rational in infrastructure, it has the sealing washer to fill up between disk seat and valve body, and the lateral part indent of sealing washer forms the lip, even when the valve is opened, the pressure of medium also can promote the sealing washer and warp, makes outer lip more tightly touch the valve body, and the disk seat is more tightly touched on the inner lip, and similar piston effect has stopped the possibility of seepage, makes the whole sealed reliability of ball valve improve greatly.
Description
The technical field is as follows: the utility model relates to a ball valve, especially hard seal ball valve.
Background art: ball valves used in some process pipelines often pass through a large amount of high-temperature and high-pressure media, the working conditions are strict, and a hard sealing ball valve is generally needed to ensure the sealing performance. The hard valve seat in the common hard sealing ball valve is installed and connected in the valve body, and a gap is formed between the valve seat and the valve body during long-term use, so that a small amount of leakage of a medium is generated. Especially when the valve is opened, the leakage condition can be aggravated, and the whole sealing reliability of the ball valve is directly influenced.
The invention content is as follows: the utility model provides a to prior art not enough, the utility model provides a sealed comprehensive hard seal ball valve of taking lip seal structure.
The utility model discloses a be provided with the valve body of disk seat, connect the spheroid of valve rod lower extreme and the hard sealed cooperation of disk seat, it has the sealing washer to fill up between disk seat and valve body, and the lateral part of this sealing washer is interior concave to form outer lip limit and interior lip limit, and outer lip limit contact valve body, interior lip limit contact disk seat form the lip seal additional strengthening.
The utility model discloses a rational in infrastructure, it has the sealing washer to fill up between disk seat and valve body, and the lateral part indent of sealing washer forms the lip, even when the valve is opened, the pressure of medium also can promote the sealing washer and warp, makes outer lip more tightly touch the valve body, and the disk seat is more tightly touched on the inner lip, and similar piston effect has stopped the possibility of seepage, makes the whole sealed reliability of ball valve improve greatly.
The invention is further described with reference to the following figures and examples.
Description of the drawings: fig. 1 is a schematic diagram of the main structure of the embodiment.
Fig. 2 is an enlarged schematic view of a portion I of fig. 1.
The specific implementation mode is as follows: as shown in fig. 1 and 2, a valve seat 2 is provided in a valve body 1, and a ball 4 connected to a lower end of a valve stem 3 is in hard sealing engagement with the valve seat 2. A sealing ring 5 is padded between the valve seat 2 and the valve body 1, the side part of the sealing ring 5 is inwards concave to form an outer lip edge 6 and an inner lip edge 7, the outer lip edge 6 is contacted with the valve body 1, and the inner lip edge 7 is contacted with the valve seat 2 to form a lip-shaped sealing reinforcing structure.
When the valve is opened, the pressure of the medium can also push the sealing ring 5 to deform, and the sealing ring is similar to a piston effect, so that the outer lip edge 6 is more tightly contacted with the valve body 1, and the inner lip edge 7 is more tightly contacted with the valve seat 2, and leakage is prevented. The width of the outer lip edge 6 of the sealing ring 5 can be larger than that of the inner lip edge 7, so that the piston effect is more obvious when the sealing ring is deformed under pressure, and the sealing property is better.
In this embodiment, a fixing shaft 8 is installed at the bottom of the valve body 1 and is coaxial with the valve stem 3, and the center of the lower portion of the ball 4 is rotatably connected to the fixing shaft 8. Therefore, the upper part and the lower part of the ball body 4 are provided with the fixed rotating shafts, so that the ball body can adapt to higher medium pressure, and is wear-resistant and scouring-resistant.
Claims (3)
1. The utility model provides a take lip seal structure's hard seal ball valve, is including the valve body that is provided with the disk seat, connects the spheroid and the disk seat hard seal cooperation at the valve rod lower extreme, characterized in that: a sealing ring (5) is padded between the valve seat (2) and the valve body (1), the side part of the sealing ring (5) is recessed inwards to form an outer lip edge (6) and an inner lip edge (7), the outer lip edge (6) is contacted with the valve body (1), and the inner lip edge (7) is contacted with the valve seat (2) to form a lip-shaped sealing reinforcing structure.
2. A hard seal ball valve with a lip seal according to claim 1, wherein: the width of the outer lip edge (6) of the sealing ring (5) is larger than that of the inner lip edge (7).
3. A hard seal ball valve with a lip seal according to claim 1, wherein: the bottom of the valve body (1) is provided with a fixed shaft (8) which has the same axis with the valve rod (3), and the center of the lower part of the sphere (4) is rotationally connected with the fixed shaft (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121295566.3U CN215214847U (en) | 2021-06-10 | 2021-06-10 | Hard sealing ball valve with lip-shaped sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121295566.3U CN215214847U (en) | 2021-06-10 | 2021-06-10 | Hard sealing ball valve with lip-shaped sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215214847U true CN215214847U (en) | 2021-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121295566.3U Active CN215214847U (en) | 2021-06-10 | 2021-06-10 | Hard sealing ball valve with lip-shaped sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215214847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116045024A (en) * | 2023-04-03 | 2023-05-02 | 瑞纳智能设备股份有限公司 | Valve assembly and valve control system |
-
2021
- 2021-06-10 CN CN202121295566.3U patent/CN215214847U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116045024A (en) * | 2023-04-03 | 2023-05-02 | 瑞纳智能设备股份有限公司 | Valve assembly and valve control system |
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