CN216045512U - Novel butterfly valve sealing structure - Google Patents
Novel butterfly valve sealing structure Download PDFInfo
- Publication number
- CN216045512U CN216045512U CN202122744373.8U CN202122744373U CN216045512U CN 216045512 U CN216045512 U CN 216045512U CN 202122744373 U CN202122744373 U CN 202122744373U CN 216045512 U CN216045512 U CN 216045512U
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- Prior art keywords
- sealing
- butterfly valve
- shaft hole
- lower shaft
- chamfer
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 100
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the technical field of butterfly valve sealing, in particular to a novel butterfly valve sealing structure which comprises a butterfly valve body, a lower shaft hole sealing cover is arranged at the bottom end of the butterfly valve body, a lower shaft hole sealing plug is arranged at the top of the lower shaft hole sealing cover, a second chamfer is arranged on the inner side of the bottom end of the butterfly valve body, a first chamfer is arranged on the outer side of the top end of the lower shaft hole sealing plug, a second sealing rubber ring is arranged in the second chamfer, a first sealing rubber ring is arranged in the first chamfer, the sealing performance of the structure is further enhanced by arranging the first chamfer angle at the top of the sealing plug of the lower shaft hole to form a sealing cavity and arranging the second chamfer angle at the bottom of the lower shaft hole of the butterfly valve to form a sealing cavity, through setting up the sealed rubber ring that the size slightly is greater than the inside size of seal chamber for the sealed rubber ring is extruded after the sealing plug installation, thereby makes its compression deformation, thereby makes the sealing performance of seal chamber structure further promote.
Description
Technical Field
The utility model relates to the technical field of butterfly valve sealing, in particular to a novel butterfly valve sealing structure.
Background
A butterfly valve is also called a flap valve, is a regulating valve with simple structure, can be used for the on-off control of low-pressure pipeline media, and is a valve which is opened and closed by rotating around a valve shaft by using a valve clack or a butterfly plate of a closing member as a disc. How to achieve a leak-proof seal is an important criterion from the point of view of the valve. Especially when the butterfly valve is applied to a water flowing pipeline, the sealing performance needs to be emphasized more, the shaft hole of the valve body of the butterfly valve is an important part for sealing, if the sealing is not good, serious liquid leakage can occur, the existing butterfly valve has the leakage risk, in the traditional technology, the sealing of the lower shaft hole of the butterfly valve is simple, the lower shaft hole is sleeved on the lower shaft through a sealing ring to form sealing with the shaft hole, and under the condition of long-time use, the sealing ring is easy to lose efficacy, so that the leakage of the position is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel butterfly valve sealing structure which comprises a butterfly valve body, wherein a lower shaft hole sealing cover is arranged at the bottom end of the butterfly valve body, a lower shaft hole sealing plug is arranged at the top of the lower shaft hole sealing cover, a second chamfer is arranged on the inner side of the bottom end of the butterfly valve body, a first chamfer is arranged on the outer side of the top end of the lower shaft hole sealing plug, a second sealing rubber ring is arranged in the second chamfer, a first sealing rubber ring is arranged in the first chamfer, a plurality of groups of first threaded holes are formed in the bottom of the butterfly valve body, a plurality of groups of second threaded holes are formed in the lower shaft hole sealing cover, and fastening bolts are in threaded connection with the first threaded holes and the second threaded holes.
Preferably: the size of the lower shaft hole sealing plug is matched with that of the lower shaft hole of the butterfly valve body.
Preferably: the size of fastening bolt and the size phase-match of first screw hole and second screw hole, the corresponding position phase-match of first screw hole and second screw hole.
Preferably: the top outside of lower shaft hole sealing plug is equipped with first chamfer, first chamfer and butterfly valve body form the seal chamber.
Preferably: the bottom inboard of butterfly valve body is equipped with the second chamfer, the second chamfer forms sealed chamber with lower shaft hole sealing lid and lower shaft hole sealing plug.
Preferably: the first sealing rubber ring and the second sealing rubber ring are O-shaped elastic rubber rings, and the diameters of the first sealing rubber ring and the second sealing rubber ring are slightly larger than the inner diameter of the sealing cavity.
Compared with the prior art, the utility model has the beneficial effects that:
through setting up shaft hole sealing plug under the butterfly valve, make the lower shaft hole leakproofness of butterfly valve obtain the reinforcing, through the sealed chamber that the second chamfer that sets up shaft hole bottom under shaft hole sealing plug top set up first chamfer formation sealed chamber and butterfly valve formed, the sealing performance of this structure has further been strengthened, slightly be greater than the sealed rubber ring of the inside size of sealed chamber through setting up the size, make the sealed rubber ring of extrusion after the sealing plug installation, thereby make its compression deformation, thereby make the sealing performance of sealed chamber structure further promote, through setting up a plurality of groups screw hole and fastening bolt, make sealing plug and sealed lid and butterfly valve body down be connected between the shaft hole closely firm more, thereby the stability of this structure has been promoted.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic diagram of structures A and B of the present invention.
In the figure:
1. a butterfly valve body; 2. a lower shaft hole sealing cover; 3. a lower shaft hole sealing plug; 4. fastening a bolt; 5. a first sealing rubber ring; 6. a first chamfer; 7. a second sealing rubber ring; 8. a second chamfer; 101. a first threaded hole; 201. and a second threaded hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the novel butterfly valve sealing structure of the utility model is shown, which comprises a butterfly valve body 1, wherein a lower shaft hole sealing cover 2 is arranged at the bottom end of the butterfly valve body 1, a lower shaft hole sealing plug 3 is arranged at the top of the lower shaft hole sealing cover 2, the sealing performance of the lower shaft hole of the butterfly valve is enhanced by arranging the lower shaft hole sealing plug 3, a second chamfer 8 is arranged at the inner side of the bottom end of the butterfly valve body 1, a first chamfer 6 is arranged at the outer side of the top end of the lower shaft hole sealing plug 3, a second sealing rubber ring 7 is arranged in the second chamfer 8, a first sealing rubber ring 5 is arranged in the first chamfer 6, a plurality of groups of first threaded holes 101 are arranged at the bottom of the butterfly valve body 1, a plurality of groups of second threaded holes 201 are arranged in the lower shaft hole sealing cover 2, and fastening bolts 4 are in threaded connection with the first threaded holes 101 and the second threaded holes 201, the size of the lower shaft hole sealing plug 3 is matched with the size of the lower shaft hole of the butterfly valve body 1, the size of the fastening bolt 4 is matched with the sizes of the first threaded hole 101 and the second threaded hole 201, the corresponding positions of the first threaded hole 101 and the second threaded hole 201 are matched, a first chamfer 6 is arranged on the outer side of the top end of the lower shaft hole sealing plug 3, the first chamfer 6 and the butterfly valve body 1 form a sealing cavity, a second chamfer 8 is arranged on the inner side of the bottom end of the butterfly valve body 1, the second chamfer 8, the lower shaft hole sealing cover 2 and the lower shaft hole sealing plug 3 form a sealing cavity, the first sealing rubber ring 5 and the second sealing rubber ring 7 are O-shaped elastic rubber rings, the diameters of the first sealing rubber ring 5 and the second sealing rubber ring 7 are slightly larger than the inner diameter of the sealing cavity, the sealing cavity is formed by arranging the first chamfer 6 on the top of the lower shaft hole sealing plug 3, and the sealing cavity formed by the second chamfer 8 arranged at the bottom of the lower shaft hole of the butterfly valve, the sealing performance of the structure is further enhanced.
Wherein: the first sealing rubber ring 5, the second sealing rubber ring 7 and the fastening bolt 4 are all mature production technologies and equipment which are already applied in real life.
While the utility model has been described in further detail in connection with specific embodiments thereof, it will be understood that the utility model is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the utility model, which should be considered to be within the scope of the utility model as defined by the appended claims.
Claims (6)
1. The utility model provides a novel butterfly valve seal structure, includes butterfly valve body (1), its characterized in that: the bottom of the butterfly valve body (1) is provided with a lower shaft hole sealing cover (2), the top of the lower shaft hole sealing cover (2) is provided with a lower shaft hole sealing plug (3), the bottom inner side of the butterfly valve body (1) is provided with a second chamfer (8), the top outer side of the lower shaft hole sealing plug (3) is provided with a first chamfer (6), a second sealing rubber ring (7) is arranged in the second chamfer (8), a first sealing rubber ring (5) is arranged in the first chamfer (6), a plurality of groups of first threaded holes (101) are arranged at the bottom of the butterfly valve body (1), a plurality of groups of second threaded holes (201) are arranged in the lower shaft hole sealing cover (2), and the first threaded holes (101) and the second threaded holes (201) are in threaded connection with fastening bolts (4).
2. A novel butterfly valve sealing structure according to claim 1, characterized in that: the size of the lower shaft hole sealing plug (3) is matched with that of the lower shaft hole of the butterfly valve body (1).
3. A novel butterfly valve sealing structure according to claim 1, characterized in that: the size of the fastening bolt (4) is matched with the size of the first threaded hole (101) and the second threaded hole (201), and the corresponding positions of the first threaded hole (101) and the second threaded hole (201) are matched.
4. A novel butterfly valve sealing structure according to claim 1, characterized in that: the top outside of lower shaft hole sealing plug (3) is equipped with first chamfer (6), first chamfer (6) and butterfly valve body (1) form the sealed chamber.
5. A novel butterfly valve sealing structure according to claim 1, characterized in that: the bottom inboard of butterfly valve body (1) is equipped with second chamfer (8), second chamfer (8) and lower shaft hole sealing lid (2) and lower shaft hole sealing plug (3) form sealed chamber.
6. A novel butterfly valve sealing structure according to claim 1, characterized in that: the first sealing rubber ring (5) and the second sealing rubber ring (7) are both O-shaped elastic rubber rings, and the diameters of the first sealing rubber ring (5) and the second sealing rubber ring (7) are slightly larger than the inner diameter of the sealing cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122744373.8U CN216045512U (en) | 2021-11-10 | 2021-11-10 | Novel butterfly valve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122744373.8U CN216045512U (en) | 2021-11-10 | 2021-11-10 | Novel butterfly valve sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216045512U true CN216045512U (en) | 2022-03-15 |
Family
ID=80615262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122744373.8U Expired - Fee Related CN216045512U (en) | 2021-11-10 | 2021-11-10 | Novel butterfly valve sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216045512U (en) |
-
2021
- 2021-11-10 CN CN202122744373.8U patent/CN216045512U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220315 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |