CN220600634U - High-tightness ball valve - Google Patents
High-tightness ball valve Download PDFInfo
- Publication number
- CN220600634U CN220600634U CN202321963021.4U CN202321963021U CN220600634U CN 220600634 U CN220600634 U CN 220600634U CN 202321963021 U CN202321963021 U CN 202321963021U CN 220600634 U CN220600634 U CN 220600634U
- Authority
- CN
- China
- Prior art keywords
- sealing
- sealing ring
- air bag
- valve
- valve body
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 87
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 239000000945 filler Substances 0.000 description 3
- 210000004712 air sac Anatomy 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a high-tightness ball valve, and belongs to the technical field of ball valves. The high-tightness ball valve comprises a valve body, wherein a valve rod is rotatably installed in the valve body, a sealing groove is formed in the upper end of the valve body, a sealing assembly is arranged in the sealing groove, and the sealing assembly is matched with the valve rod to form a seal; the upper end of the valve body is provided with a sealing cover; the sealing assembly comprises a sealing ring and an air bag; the sealing ring and the air bag are arranged in the sealing groove, the outer wall of the sealing ring abuts against the air bag, and the inner wall of the sealing ring abuts against the valve rod to form sealing; according to the utility model, the air bag and the sealing ring are arranged, the sealing ring is propped against the valve rod to form sealing through the air bag, the sealing ring is prevented from deforming through the arrangement of the air bag, the sealing performance is improved, and the leakage is avoided.
Description
Technical Field
The utility model belongs to the technical field of ball valves, and particularly relates to a high-tightness ball valve.
Background
The ball valve is driven by the valve rod and rotates around the axis of the ball valve; the device can also be used for regulating and controlling fluid, wherein the hard seal V-shaped ball valve has strong shearing force between the V-shaped ball core and the metal valve seat of the hard alloy for surfacing, and is particularly suitable for mediums containing fibers, tiny solid particles and the like.
In the structure of the ball valve, the sealing filler is usually added on the valve body to realize the purpose of sealing with the valve rod, but the traditional sealing filler can deform and leak after long-time use, the valve is often required to be disassembled for replacing the sealing filler, the operation is complex, the ball valves are generally difficult to disassemble after being installed, and the operation is difficult to be performed when the sealing ring is required to be replaced, so that the ball valves leak; therefore, a high-tightness ball valve is proposed.
Disclosure of Invention
The utility model aims to provide a high-tightness ball valve, which can realize high tightness of the ball valve.
The utility model relates to a high-tightness ball valve, which comprises a valve body, wherein a valve rod is rotatably arranged in the valve body, the upper end of the valve body is provided with a sealing groove, a sealing assembly is arranged in the sealing groove, and the sealing assembly is matched with the valve rod to form a seal; the upper end of the valve body is provided with a sealing cover; the sealing assembly comprises a sealing ring and an air bag; the sealing ring and the air bag are arranged in the sealing groove, the outer wall of the sealing ring abuts against the air bag, and the inner wall of the sealing ring abuts against the valve rod to form sealing.
As a further development of the utility model, the sealing ring cross section is convex towards the valve stem.
As a further improvement of the utility model, the sealing ring is made of nitrile rubber.
As a further improvement of the present utility model, the balloon has a ring-like structure.
As a further improvement of the utility model, the air bag is provided with an air inlet nozzle which penetrates through the sealing cover and extends out of the sealing groove, and the air inlet nozzle is provided with a plug.
Compared with the prior art, the utility model has the advantages that:
1. according to the utility model, the air bag and the sealing ring are arranged, the sealing ring is propped against the valve rod to form sealing through the air bag, the sealing ring is prevented from deforming through the arrangement of the air bag, the sealing performance is improved, and the leakage is avoided.
2. The air bag is provided with the air inlet nozzle, and extends out of the sealing groove, so that the air bag can be conveniently supplemented with air through the air inlet nozzle, the air bag can be always in a full state, the leakage problem caused by the shrinkage of the air bag can not occur, and meanwhile, the air is supplemented through the air inlet nozzle, the valve is not required to be detached, and the operation is more convenient.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a cross-sectional structure of a seal assembly according to the present utility model;
fig. 3 is a schematic view of the structure of the airbag of the present utility model.
The reference numerals in the figures illustrate:
1. a valve body; 101. sealing grooves; 2. a valve stem; 3. a seal assembly; 301. a seal ring; 302. an air bag; 3021. an air inlet nozzle; 4. sealing cover; 5. and (5) plugging.
Detailed Description
First embodiment: referring to fig. 1-3, a high-tightness ball valve comprises a valve body 1, wherein a valve rod 2 is rotatably installed in the valve body 1, a sealing groove 101 is formed in the upper end of the valve body 1, a sealing component 3 is arranged in the sealing groove 101, and the sealing component 3 is matched with the valve rod 2 to form a seal; the upper end of the valve body 1 is provided with a sealing cover 4 through a fastening bolt;
the seal assembly 3 comprises a seal ring 301 and an air bladder 302; the sealing ring 301 and the air bag 302 are arranged in the sealing groove 101, the outer wall of the sealing ring 301 abuts against the air bag 302, and the inner wall of the sealing ring 301 abuts against the valve rod 2 to form sealing; the sealing ring 301 is abutted against the sealing ring 301 through the air bag 302, so that the sealing ring 301 is abutted against the valve rod 2 to form sealing, the problem that the sealing ring 301 is deformed after being subjected to rotation friction of the valve rod 2 can be effectively avoided through the arrangement of the air bag 302, meanwhile, the sealing ring 301 is made of nitrile rubber, the wear resistance is better, the cross section of the sealing ring 301 is protruded towards the valve rod 2, and the protruded sealing ring 301 can ensure that the sealing ring 301 is always abutted against the valve rod 2 to form sealing.
The air bag 302 is of annular configuration; therefore, the air bag 302 can be contacted with the sealing ring 301 in all directions to provide supporting force, meanwhile, the air inlet nozzle 3021 is arranged on the air bag 302, the air inlet nozzle 3021 penetrates through the sealing cover 4 to extend out of the sealing groove 101, the air bag 302 can be conveniently supplemented with air through the air inlet nozzle 3021, the air bag 302 is always in a full state, the situation of shrinkage is avoided, the ball valve is not required to be detached, the operation is more convenient, and the plug 5 is arranged on the air inlet nozzle 3021 in a threaded mode; the plug 5 can ensure that the air bag 302 cannot leak air; and meanwhile, the air bag 302 is propped against the sealing groove 101 and the sealing cover 4, so that the condition of leakage from the sealing groove 101 is avoided.
Working principle: according to the utility model, the sealing ring 301 is always in contact with the air bag 302 through the support of the air bag 302 to form a seal, so that the leakage is avoided, meanwhile, through the arrangement of the air tap, the air can be conveniently supplemented from the outside, the air bag 302 is kept full, the situation that the air bag 302 is shriveled and leaked is avoided, the air can be supplemented without the need of valve disassembly, and the operation is simple and convenient.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (5)
1. The utility model provides a high leakproofness ball valve, includes valve body (1), valve rod (2), its characterized in that are installed in valve body (1) internal rotation: the upper end of the valve body (1) is provided with a sealing groove (101), a sealing component (3) is arranged in the sealing groove (101), and the sealing component (3) is matched with the valve rod (2) to form a seal; the upper end of the valve body (1) is provided with a sealing cover (4);
the sealing assembly (3) comprises a sealing ring (301) and a gas bag (302); the sealing ring (301) and the air bag (302) are arranged in the sealing groove (101), the outer wall of the sealing ring (301) abuts against the air bag (302), and the inner wall of the sealing ring (301) abuts against the valve rod (2) to form sealing.
2. The high tightness ball valve of claim 1 wherein: the cross section of the sealing ring (301) protrudes towards the valve rod (2).
3. The high tightness ball valve according to claim 2, wherein: the sealing ring (301) is made of nitrile rubber.
4. The high tightness ball valve of claim 1 wherein: the balloon (302) has a ring-like structure.
5. The high tightness ball valve according to claim 4, wherein: be provided with air inlet nozzle (3021) on gasbag (302), air inlet nozzle (3021) runs through sealed lid (4) and stretches out seal groove (101), installs end cap (5) on air inlet nozzle (3021).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321963021.4U CN220600634U (en) | 2023-07-25 | 2023-07-25 | High-tightness ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321963021.4U CN220600634U (en) | 2023-07-25 | 2023-07-25 | High-tightness ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220600634U true CN220600634U (en) | 2024-03-15 |
Family
ID=90167043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321963021.4U Active CN220600634U (en) | 2023-07-25 | 2023-07-25 | High-tightness ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220600634U (en) |
-
2023
- 2023-07-25 CN CN202321963021.4U patent/CN220600634U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220600634U (en) | High-tightness ball valve | |
| CN201715015U (en) | Metal-seal fixed ball valve | |
| CN213117571U (en) | Hard sealing fixed ball valve | |
| CN210461708U (en) | Stop valve | |
| CN205278506U (en) | Novel resistant high pressure isolating valve | |
| CN207080636U (en) | Low torque elastic floating ball valve | |
| CN215214847U (en) | Hard sealing ball valve with lip-shaped sealing structure | |
| CN211649126U (en) | Welding ball valve that floats | |
| CN103244694B (en) | Piston type zero leakage stop valve | |
| CN211010129U (en) | Valve rod sealing mechanism | |
| CN216519704U (en) | Cock gas valve | |
| CN218440774U (en) | Program control valve for S-Zorb device | |
| CN212251270U (en) | High-pressure cut-off ball valve | |
| CN204164410U (en) | A kind of New corrugated pipe seal ball-valve | |
| CN219299960U (en) | Bellows stop valve | |
| CN213655786U (en) | Encryption ball valve | |
| CN219712401U (en) | Low-torque pressure self-sealing fixed ball valve | |
| CN214946555U (en) | Hard sealing ball valve with middle cavity pressure relief function | |
| CN219082273U (en) | Leak-proof butterfly valve | |
| CN215805480U (en) | Internal thread pneumatic shuttle valve | |
| CN219493109U (en) | High-pressure floating ball valve | |
| CN215172422U (en) | Ball type valve body | |
| CN214579249U (en) | High temperature and high pressure resistant stop valve | |
| CN220622813U (en) | Ball valve with double seal valve seat | |
| CN214367836U (en) | Anti-static double-eccentric soft sealing butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |