CN219866322U - Double-sealing structure and metal butterfly valve - Google Patents
Double-sealing structure and metal butterfly valve Download PDFInfo
- Publication number
- CN219866322U CN219866322U CN202320879904.0U CN202320879904U CN219866322U CN 219866322 U CN219866322 U CN 219866322U CN 202320879904 U CN202320879904 U CN 202320879904U CN 219866322 U CN219866322 U CN 219866322U
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- Prior art keywords
- valve
- sealing ring
- ring
- seat shell
- valve clack
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- 238000007789 sealing Methods 0.000 title claims abstract description 88
- 239000002184 metal Substances 0.000 title claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 9
- 230000009977 dual effect Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006978 adaptation Effects 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of butterfly valve sealing, and particularly discloses a double-sealing structure and a metal butterfly valve, comprising: the valve seat shell is provided with an inner sealing ring matched with the inner cavity of the valve seat shell, and side sealing rings are arranged at the opening ends of the two sides of the inner sealing ring; the two mounting grooves are respectively positioned at two sides of the inner sealing ring, and the side surface of the baffle ring is flush with the end surface of the valve seat shell; the edges of the front surface and the back surface of the valve clack are respectively attached to the two baffle rings; the beneficial effects are as follows: through having seted up the mounting groove in the side of sealing ring, the inner chamber of mounting groove is provided with the fender ring with its looks adaptation, and the surface bonding of fender ring has the side seal to fill up, and the side of valve clack is sealed with the inner wall contact of interior sealing ring, and the surface edge of valve clack closely laminates with the side seal pad on the fender ring, forms double containment structure, even if interior sealing ring inner wall receives wearing and tearing, and the side seal pad still can seal the edge of valve clack to effectively improved sealed effect, more can adapt to the abominable environment of quality of water.
Description
Technical Field
The utility model relates to the technical field of butterfly valve sealing, in particular to a double-sealing structure and a metal butterfly valve.
Background
The butterfly valve is also called as a flap valve, and is a valve which has a simple structure and can be used for opening and closing low-pressure pipeline media.
At present, the metal butterfly valve is provided with an annular sealing gasket on the inner wall of the valve seat, and a seal is formed between the valve clack and the valve seat by means of the sealing gasket so as to prevent liquid from leaking.
But when the quality of water of butterfly valve installation environment is relatively poor, granule impurity is more in the water, and the valve clack rotates, the process of scraping granule impurity at the edge of valve clack can lead to the scratch to sealed pad, uses for a long time and leads to sealed pad wearing and tearing easily to influence the sealed effect of butterfly valve.
Disclosure of Invention
The utility model aims to provide a double-sealing structure and a metal butterfly valve, which are used for solving the problem that the sealing gasket is scratched and worn in the process of scraping particle impurities from the edge of a valve clack in the background art, so that the sealing effect is affected.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a dual seal structure comprising:
the inner cavity of the valve seat shell is provided with an inner sealing ring matched with the inner sealing ring, both side opening ends of the inner sealing ring are provided with side sealing rings, and the side sealing rings are attached to the end face of the valve seat shell;
the mounting grooves are formed in the inner wall of the inner sealing ring and are two, the two mounting grooves are respectively positioned on two sides of the inner sealing ring, the inner cavity of the mounting groove is provided with a baffle ring matched with the mounting grooves, and the side surfaces of the baffle ring are flush with the end surface of the valve seat shell; and
The valve clack, the valve clack rotates the inner chamber of installing in the disk seat shell, the side surface of valve clack is laminated with the inside wall of interior sealing ring, the positive and negative both surfaces edge of valve clack is laminated with two backing rings respectively.
Preferably, the mounting groove and the baffle ring are semicircular, and a side surface, which is attached to the valve clack, of the baffle ring is bonded with a side sealing gasket, so that the sealing effect on the valve clack is further improved.
Preferably, the both ends opening part of interior sealing ring inner wall all is provided with the direction chamfer, the valve rod logical groove has all been seted up at the upper and lower both ends of interior sealing ring, and the rotation that the direction chamfer can prevent the valve clack receives the stop of interior sealing ring.
Preferably, the valve clack is disc type wholly, polygonal through grooves have been vertically seted up at the middle part of valve clack, and the valve clack can be better laminating with interior sealing ring.
Preferably, the middle part of valve clack is vertical to be pegged graft has the polygon inserted bar, the tip fixedly connected with of polygon inserted bar connects the valve rod, connect valve rod and valve rod logical groove movable through connection, can drive the valve clack and rotate in step when connecting the valve rod and rotate.
Preferably, the upper end fixedly connected with rotary handle of connection valve rod, the rotation of connection valve rod is installed in the inside of valve rod positioning tube, valve rod positioning tube and disk seat shell's lateral wall fixed connection, consequently connection valve rod can obtain good location, and it can only rotate and can not take place to remove.
A metal butterfly valve comprises the double sealing structure.
Compared with the prior art, the utility model has the beneficial effects that:
according to the double-sealing structure and the metal butterfly valve, the mounting groove is formed in the side edge of the inner sealing ring, the baffle ring matched with the mounting groove is arranged in the inner cavity of the mounting groove, the side sealing gasket is adhered to the surface of the baffle ring, the side edge of the inner sealing ring is adhered to the guide chamfer, when the valve clack rotates, the side edge of the valve clack contacts and seals with the inner wall of the inner sealing ring, the surface edge of the valve clack is tightly adhered to the side sealing gasket on the baffle ring to form the double-sealing structure, and even if the inner wall of the inner sealing ring is worn, the side sealing gasket can still seal the edge of the valve clack, so that the sealing effect is effectively improved, and the double-sealing structure can be more suitable for environments with severe water quality.
Drawings
FIG. 1 is a perspective view of the overall structure of the present utility model;
FIG. 2 is a schematic view of the overall structure of the present utility model in semi-section;
FIG. 3 is a schematic view of the installation of the inner seal ring and retainer ring structure of the present utility model;
FIG. 4 is a schematic illustration showing the separation of the inner seal ring and the retainer ring structure of the present utility model.
In the figure: 1. a valve seat housing; 2. an inner seal ring; 3. a side seal ring; 4. a mounting groove; 5. a baffle ring; 6. a side gasket; 7. guiding chamfering; 8. a valve rod through groove; 9. a valve flap; 10. polygonal inserted link; 11. connecting a valve rod; 12. and a valve rod positioning cylinder.
Detailed Description
In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.
Example 1
Referring to fig. 1-4, the present utility model provides a technical solution: a dual seal structure comprising: a valve seat housing 1, a mounting groove 4 and a valve flap 9.
Specifically, an inner sealing ring 2 matched with the valve seat shell 1 is arranged in the inner cavity of the valve seat shell 1 and is used for sealing the inner wall of the valve seat shell 1, side sealing rings 3 are arranged at the opening ends of the two sides of the inner sealing ring 2, the side sealing rings 3 are attached to the end face of the valve seat shell 1, and the side sealing rings 3 are buckled on the end face of the valve seat shell 1 and are used for improving the tightness of the valve seat shell 1 when being connected with an external pipeline, so that leakage of liquid is avoided;
secondly, the mounting grooves 4 are formed in the inner wall of the inner sealing ring 2 and are formed in two, the two mounting grooves 4 are respectively located on two sides of the inner sealing ring 2, the specific positions of the mounting grooves 4 are shown in fig. 4, a baffle ring 5 matched with the inner cavity of the mounting grooves 4 is arranged in the inner cavity of the mounting grooves, the side face of the baffle ring 5 is flush with the end face of the valve seat shell 1, when the valve seat shell 1 is connected with an external pipeline, the end face of the external pipeline presses the side sealing ring 3, so that the side sealing ring 3 can compress the baffle ring 5, and liquid leakage between the baffle ring 5 and the inner sealing ring 2 is avoided;
further, valve clack 9 rotates and installs in the inner chamber of disk seat shell 1, the side surface of valve clack 9 is laminated with the inside wall of interior sealing ring 2, the positive and negative both surfaces edge of valve clack 9 respectively with two keep off ring 5 laminating, as shown in fig. 2, when valve clack 9 rotates to with interior sealing ring 2 inside wall laminating, the surface edge department of valve clack 9 can press the surface at keep off ring 5, keep off ring 5 can carry out further sealedly to the edge of valve clack 9, thereby prevent interior sealing ring 2 by the scratch after, the leakproofness between interior sealing ring 2 and the valve clack 9 reduces and leads to liquid leakage, and then ensure that this device can adapt to more abominable, impurity more water quality environment.
Example two
On the basis of the first embodiment, in order to increase the sealing effect of the baffle ring 5 on the valve clack 9, the mounting groove 4 and the baffle ring 5 are both semicircular, and a side surface, which is attached to the valve clack 9, of the baffle ring 5 is adhered with the side sealing gasket 6, so that when the valve clack 9 rotates and presses the baffle ring 5, the sealing effect of the baffle ring 5 on the valve clack 9 can be increased by the side sealing gasket 6.
Example III
On the basis of the second embodiment, in order to prevent the edge of the valve clack 9 from being blocked by the corner of the inner sealing ring 2, the utility model also provides a guide chamfer 7 arranged at the openings at the two ends of the inner wall of the inner sealing ring 2, the upper end and the lower end of the inner sealing ring 2 are provided with valve rod through grooves 8, and the guide chamfer 7 is used for preventing the edge of the valve clack 9 from being blocked by the corner of the inner sealing ring 2 when the valve clack 9 rotates.
Example IV
On the basis of the third embodiment, in order to ensure better fit between the edge of the valve clack 9 and the inner side wall of the inner sealing ring 2, the valve clack 9 is integrally in a disc shape, a polygonal through groove is vertically formed in the middle of the valve clack 9, and the disc-shaped valve clack 9 can be better fit with the inner wall of the inner sealing ring 2.
Example five
On the basis of the fourth embodiment, in order to drive the valve clack 9 to rotate, the utility model also provides a polygonal inserted rod 10 vertically inserted in the middle of the valve clack 9, the end part of the polygonal inserted rod 10 is fixedly connected with a connecting valve rod 11, the connecting valve rod 11 is movably connected with the valve rod through groove 8 in a penetrating way, and the polygonal inserted rod 10 is used for driving the valve clack 9 to rotate.
Example six
On the basis of the fifth embodiment, in order to install and position the connecting valve rod 11, the utility model also has the advantages that the upper end of the connecting valve rod 11 is fixedly connected with a rotary handle, the rotation of the connecting valve rod 11 is installed in the valve rod positioning cylinder 12, the valve rod positioning cylinder 12 is fixedly connected with the outer side wall of the valve seat shell 1, and the valve rod positioning cylinder 12 is used for installing and positioning the connecting valve rod 11.
A metal butterfly valve comprises the double sealing structure.
When the valve seat is in actual use, the inner sealing ring 2 is firstly installed in the inner cavity of the valve seat shell 1, the two side sealing rings 3 are respectively attached to the two end surfaces of the valve seat shell 1, then the side sealing rings 3 are pulled to insert the baffle ring 5 into the inner cavity of the installation groove 4, then the valve seat shell 1 is connected with an external pipeline, and the end surfaces of the external pipeline press the side sealing rings 3, so that the baffle ring 5 can be pressed;
when the valve clack 9 rotates and closes the inner cavity of the valve seat shell 1, the surface edge of the valve clack 9 extrudes the baffle ring 5, at the moment, the two side surfaces of the baffle ring 5 are extruded by the valve clack 9 and the side sealing ring 3 respectively, the position of the baffle ring 5 can be kept stable, the side sealing gasket 6 on the surface of the baffle ring 5 further improves the performance of the valve clack 9, even if the inner wall of the inner sealing ring 2 is scratched, the valve clack 9 still can have good sealing effect, and therefore the device can adapt to more severe water quality environment.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A double seal structure, characterized in that: the double seal structure includes:
the valve seat comprises a valve seat shell (1), wherein an inner cavity of the valve seat shell (1) is provided with an inner sealing ring (2) matched with the inner cavity, both side opening ends of the inner sealing ring (2) are provided with side sealing rings (3), and the side sealing rings (3) are attached to the end face of the valve seat shell (1);
the mounting grooves (4) are formed in the inner wall of the inner sealing ring (2) and are two, the two mounting grooves (4) are respectively located at two sides of the inner sealing ring (2), a baffle ring (5) matched with the inner cavity of the mounting groove (4) is arranged in the inner cavity of the mounting groove, and the side face of the baffle ring (5) is flush with the end face of the valve seat shell (1); and
The valve clack (9), valve clack (9) rotate and install in the inner chamber of disk seat shell (1), the side surface of valve clack (9) is laminated with the inside wall of interior sealing ring (2), the positive and negative both surfaces edge of valve clack (9) is laminated with two backing rings (5) respectively.
2. A dual seal structure according to claim 1, wherein: the mounting groove (4) and the baffle ring (5) are both semicircular, and a side sealing gasket (6) is bonded on one side surface of the baffle ring (5) attached to the valve clack (9).
3. A dual seal structure according to claim 2, wherein: guide chamfers (7) are arranged at openings at two ends of the inner wall of the inner sealing ring (2), and valve rod through grooves (8) are formed in the upper end and the lower end of the inner sealing ring (2).
4. A dual seal structure according to claim 3, wherein: the valve clack (9) is integrally disc-shaped, and a polygonal through groove is vertically formed in the middle of the valve clack (9).
5. A dual seal structure according to claim 4, wherein: the middle part of valve clack (9) is vertical to be pegged graft has polygon inserted bar (10), the tip fixedly connected with of polygon inserted bar (10) connects valve rod (11), connect valve rod (11) and valve rod logical groove (8) activity through connection.
6. A dual seal structure according to claim 5, wherein: the upper end of the connecting valve rod (11) is fixedly connected with a rotary handle, the connecting valve rod (11) is rotatably arranged in the valve rod positioning cylinder (12), and the valve rod positioning cylinder (12) is fixedly connected with the outer side wall of the valve seat shell (1).
7. A metal butterfly valve, characterized in that: comprising a double seal structure according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320879904.0U CN219866322U (en) | 2023-04-18 | 2023-04-18 | Double-sealing structure and metal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320879904.0U CN219866322U (en) | 2023-04-18 | 2023-04-18 | Double-sealing structure and metal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219866322U true CN219866322U (en) | 2023-10-20 |
Family
ID=88343656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320879904.0U Active CN219866322U (en) | 2023-04-18 | 2023-04-18 | Double-sealing structure and metal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219866322U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117628186A (en) * | 2024-01-25 | 2024-03-01 | 邢台苏伯特油封制造有限公司 | Bidirectional sealing rotary oil seal |
| CN117967806A (en) * | 2024-04-02 | 2024-05-03 | 天津市塘沽第一阀门有限公司 | Butterfly valve with high protective performance |
-
2023
- 2023-04-18 CN CN202320879904.0U patent/CN219866322U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117628186A (en) * | 2024-01-25 | 2024-03-01 | 邢台苏伯特油封制造有限公司 | Bidirectional sealing rotary oil seal |
| CN117628186B (en) * | 2024-01-25 | 2024-04-19 | 邢台苏伯特油封制造有限公司 | Bidirectional sealing rotary oil seal |
| CN117967806A (en) * | 2024-04-02 | 2024-05-03 | 天津市塘沽第一阀门有限公司 | Butterfly valve with high protective performance |
| CN117967806B (en) * | 2024-04-02 | 2024-06-11 | 天津市塘沽第一阀门有限公司 | Butterfly valve with high protective performance |
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