CN220622783U - Butterfly valve with multiple seal structure - Google Patents
Butterfly valve with multiple seal structure Download PDFInfo
- Publication number
- CN220622783U CN220622783U CN202322399627.6U CN202322399627U CN220622783U CN 220622783 U CN220622783 U CN 220622783U CN 202322399627 U CN202322399627 U CN 202322399627U CN 220622783 U CN220622783 U CN 220622783U
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- Prior art keywords
- valve
- rod
- valve body
- cavity
- close
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- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Mechanically-Actuated Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a butterfly valve with a multiple sealing structure, which relates to the technical field of butterfly valves and comprises a valve body, a threaded block and a third rubber ring, wherein the bottom end in the valve body is rotationally connected with a valve rod, the outer wall of the valve rod in the valve body is provided with a valve clack, the outer wall of the valve clack is provided with a second rubber sealing ring, the inner side of the valve body outside the valve clack is provided with a first rubber sealing ring, the two sides of the upper end and the lower end in the valve body are respectively provided with a second cavity, one side, far away from the valve rod, of the second cavity is rotationally connected with a unidirectional threaded rod, and the outer wall of the unidirectional threaded rod in the second cavity is respectively connected with the threaded block through threads. According to the butterfly valve, the connecting rod is driven by the threaded block, so that the connecting rod drives the third rubber ring, the third rubber rings are close to each other, and the second step of sealing is performed by the third rubber rings.
Description
Technical Field
The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with a multiple sealing structure.
Background
The butterfly valve is also called as a flap valve, and is a simple-structure regulating valve, the butterfly valve capable of being used for the on-off control of low-pressure pipeline medium is characterized in that a closing member is a disc, the butterfly valve rotates around a valve shaft to achieve the purpose of opening and closing, the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive mediums, slurry, oil products, liquid metal, radioactive mediums and the like, the butterfly valve mainly plays the roles of cutting off and throttling on a pipeline, and the butterfly valve opening and closing member is a disc-shaped butterfly plate and rotates around the axis of the butterfly valve in a valve body, so that the purpose of opening and closing or regulating is achieved.
In the process of using a traditional butterfly valve, a valve rod is controlled to rotate through a hand wheel, so that a valve clack is controlled to rotate, when the valve clack and a valve body are ninety degrees, the butterfly valve can be closed, a sealing ring between the valve clack and the valve body is usually used for sealing, and if the sealing ring is corroded, liquid leakage is easily caused.
Disclosure of Invention
The utility model aims to provide a butterfly valve with a multiple sealing structure, which solves the problem that the sealing ring provided in the background technology is corroded and is easy to cause liquid leakage.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a butterfly valve with multiple sealing structures comprises a valve body, a thread block and a third rubber ring;
the valve body is characterized in that the valve rod is connected to the bottom inside the valve body in a rotating mode, the valve clack is installed on the outer wall of the valve rod inside the valve body, the second rubber sealing ring is installed on the outer wall of the valve clack, the first rubber sealing ring is installed on the inner side of the valve body outside the valve body, the second cavity is formed in the two sides of the upper end and the lower end inside the valve body, one side, far away from the valve rod, of the second cavity is connected with the unidirectional threaded rod in a rotating mode, the outer wall of the unidirectional threaded rod is connected with a threaded block through threads, one end, close to the valve rod, of the unidirectional threaded rod is provided with a driven gear, one end, close to the valve clack, of the threaded block is provided with a connecting rod, one side, close to the valve rod, of the connecting rod is provided with a third rubber ring, a first cavity is formed in the inner portion, of the valve body between the second cavity, a driving gear is installed on the outer wall of the valve rod, a mounting groove is installed on the top end of the valve body, the top of the valve body is provided with a rotating gear, one side, inside the mounting groove is far away from the valve rod, one side, and one side, close to the driving gear is rotated.
Preferably, the top end of the valve rod sequentially passes through the valve body and the mounting groove, and the top end of the valve rod extends to the inside of the mounting groove.
Preferably, the end of the connecting rod, which is close to the valve clack, penetrates through the valve body, and the end of the connecting rod, which is close to the valve clack, extends to the inside of the valve body.
Preferably, the ends of the unidirectional threaded rods close to each other penetrate through the valve body, and the ends of the unidirectional threaded rods close to each other extend to the inside of the first cavity.
Preferably, the driven gears are located on two sides of the driving gear, and the driven gears are meshed with the driving gear.
Preferably, one end of the worm passes through the mounting groove, and one end of the worm extends to one side of the mounting groove.
Preferably, the rotating gear is located at the front end of the worm, and the rotating gear is meshed with the worm.
Compared with the prior art, the utility model has the beneficial effects that: can drive driven gear rotation through driving gear, it is rotatory to drive the unidirectional screw rod through driven gear, because unidirectional screw rod passes through threaded connection with the thread piece, so at the in-process that unidirectional screw rod rotated, the thread piece can be along with the screw thread removal at unidirectional screw rod's outer wall, and the driven gear rotation direction of driving gear both sides is opposite, so the opposite direction that the thread piece removed, when the valve clack is closed, the thread piece can be moved to the direction that is close to each other, drive the connecting rod through the thread piece, make the connecting rod drive the third rubber circle, make the third rubber circle be close to each other, carry out the seal of second step through the third rubber circle, the multiple seal of butterfly valve has been realized to this structure, the sealed effect is better, prevent to leak.
Drawings
FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;
FIG. 2 is a schematic diagram of a side view, partially in section, of the present utility model;
FIG. 3 is an enlarged cross-sectional top view schematic of the mounting slot of the present utility model;
fig. 4 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.
In the figure: 1. a valve body; 2. a valve flap; 3. a valve stem; 4. a hand wheel; 5. a worm; 6. rotating the gear; 7. a mounting groove; 8. a first rubber seal ring; 9. a second rubber seal ring; 10. a first cavity; 11. a drive gear; 12. a third rubber ring; 13. a connecting rod; 14. a one-way threaded rod; 15. a screw block; 16. a second cavity; 17. a driven gear.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1: referring to fig. 1-4, a butterfly valve with multiple sealing structure includes a valve body 1, a threaded block 15 and a third rubber ring 12;
the bottom inside the valve body 1 is rotationally connected with a valve rod 3, the valve clack 2 is installed on the outer wall of the valve rod 3 inside the valve body 1, the second rubber sealing ring 9 is installed on the outer wall of the valve clack 2, the first rubber sealing ring 8 is installed on the inner side of the valve body 1 outside the valve clack 2, the second cavity 16 is formed in two sides of the upper end and the lower end inside the valve body 1, one side, far away from the valve rod 3, of the second cavity 16 is rotationally connected with a unidirectional threaded rod 14, the outer wall of the unidirectional threaded rod 14 inside the second cavity 16 is connected with a threaded block 15 through threads, one end, close to the valve rod 3, of the unidirectional threaded rod 14 is provided with a driven gear 17, one end, close to the valve clack 2, of the threaded block 15 is provided with a connecting rod 13, one side, close to the valve rod 3, of the connecting rod 13 is provided with a third rubber ring 12, a first cavity 10 is formed in the valve body 1 between the second cavity 16, a driving gear 11 is installed on the outer wall of the valve rod 3 inside the first cavity 10, a mounting groove 7 is installed on the top end of the valve body 1, one side, far away from the valve rod 3 inside the mounting groove 7 is rotationally connected with a rotary gear 6, one side, inside the mounting groove 7 is rotationally connected with a worm 5, and one end 4 of the worm 4 is installed on one side of the worm 4;
the top end of the valve rod 3 sequentially passes through the valve body 1 and the mounting groove 7, and the top end of the valve rod 3 extends to the inside of the mounting groove 7;
one end of the connecting rod 13, which is close to the valve clack 2, penetrates through the valve body 1, and one end of the connecting rod 13, which is close to the valve clack 2, extends into the valve body 1;
one ends of the unidirectional threaded rods 14, which are close to each other, penetrate through the valve body 1, and one ends of the unidirectional threaded rods 14, which are close to each other, extend into the first cavity 10;
the driven gears 17 are positioned on two sides of the driving gear 11, and the driven gears 17 are meshed with the driving gear 11;
one end of the worm 5 passes through the mounting groove 7, and one end of the worm 5 extends to one side of the mounting groove 7;
the rotating gear 6 is positioned at the front end of the worm 5, and the rotating gear 6 is meshed with the worm 5;
specifically, as shown in fig. 1, 2, 3 and 4, when the valve clack 2 is closed, the screw thread block 15 moves in a direction approaching each other, the connecting rod 13 is driven by the screw thread block 15, the connecting rod 13 drives the third rubber ring 12, the third rubber ring 12 approaches each other, and the second step of sealing is performed by the third rubber ring 12.
Working principle: the staff rotates the hand wheel 4, drives the worm 5 to rotate through the hand wheel 4, has the worm 5 and the rotation gear 6 to be meshed with each other, can drive the rotation gear 6 to rotate through the worm 5, drives the valve rod 3 to rotate through the rotation gear 6, drives the valve clack 2 to rotate through the valve rod 3, and enables the valve clack 2 to rotate, so that the valve body 1 is closed, and in the closing process, the first rubber sealing ring 8 and the second rubber sealing ring 9 are contacted with each other to seal in the first step;
in the process of rotating the valve rod 3, the driving gear 11 is driven to rotate through the valve rod 3, the driving gear 11 and the driven gear 17 are meshed with each other, the driven gear 17 can be driven to rotate through the driving gear 11, the unidirectional threaded rod 14 is driven to rotate through the driven gear 17, the unidirectional threaded rod 14 and the threaded block 15 are connected through threads, so in the process of rotating the unidirectional threaded rod 14, the threaded block 15 can move along with threads on the outer wall of the unidirectional threaded rod 14, the rotation directions of the driven gears 17 on two sides of the driving gear 11 are opposite, the movement directions of the threaded block 15 are opposite, when the valve clack 2 is closed, the threaded block 15 can move towards the directions close to each other, the connecting rod 13 is driven by the threaded block 15, the connecting rod 13 drives the third rubber ring 12 to enable the third rubber ring 12 to be close to each other, and the second step of sealing is carried out through the third rubber ring 12.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. Butterfly valve with multiple seal structure, including valve body (1), its characterized in that: the device also comprises a thread block (15) and a third rubber ring (12);
the valve body (1) is characterized in that the valve rod (3) is rotationally connected to the bottom end inside the valve body (1), the valve clack (2) is installed on the outer wall of the valve rod (3) inside the valve body (1), the second rubber sealing ring (9) is installed on the outer wall of the valve clack (2), the first rubber sealing ring (8) is installed on the inner side of the valve body (2) outside the valve body (1), the second cavity (16) is formed in two sides of the upper end and the lower end inside the valve body (1), one side, far away from the valve rod (3), of the second cavity (16) is rotationally connected with the one-way threaded rod (14), the outer wall of the one-way threaded rod (14) inside the second cavity (16) is connected with the threaded block (15) through threads, one end, close to the valve rod (3), of the one end, close to the valve rod (2), of the threaded block (15) is provided with the connecting rod (13), one side, close to the valve rod (3), is provided with the third rubber ring (12), the inner side, of the second cavity (16) is provided with the first cavity (10), one side, far away from the valve rod (3), one side, of the valve body (1) is provided with the driving groove (7), and the top of valve rod (3) inside mounting groove (7) is installed and is rotated gear (6), one side of mounting groove (7) inside rotates and is connected with worm (5), and hand wheel (4) are installed to one end of worm (5).
2. A butterfly valve with multiple seal structure according to claim 1, wherein: the top of the valve rod (3) sequentially passes through the valve body (1) and the mounting groove (7), and the top of the valve rod (3) extends to the inside of the mounting groove (7).
3. A butterfly valve with multiple seal structure according to claim 1, wherein: one end of the connecting rod (13) close to the valve clack (2) penetrates through the valve body (1), and one end of the connecting rod (13) close to the valve clack (2) extends to the inside of the valve body (1).
4. A butterfly valve with multiple seal structure according to claim 1, wherein: one ends of the unidirectional threaded rods (14) close to each other penetrate through the valve body (1), and one ends of the unidirectional threaded rods (14) close to each other extend to the inside of the first cavity (10).
5. A butterfly valve with multiple seal structure according to claim 1, wherein: the driven gears (17) are positioned on two sides of the driving gear (11), and the driven gears (17) are meshed with the driving gear (11).
6. A butterfly valve with multiple seal structure according to claim 1, wherein: one end of the worm (5) passes through the mounting groove (7), and one end of the worm (5) extends to one side of the mounting groove (7).
7. A butterfly valve with multiple seal structure according to claim 1, wherein: the rotating gear (6) is positioned at the front end of the worm (5), and the rotating gear (6) is meshed with the worm (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322399627.6U CN220622783U (en) | 2023-09-05 | 2023-09-05 | Butterfly valve with multiple seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322399627.6U CN220622783U (en) | 2023-09-05 | 2023-09-05 | Butterfly valve with multiple seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220622783U true CN220622783U (en) | 2024-03-19 |
Family
ID=90222933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322399627.6U Active CN220622783U (en) | 2023-09-05 | 2023-09-05 | Butterfly valve with multiple seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220622783U (en) |
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2023
- 2023-09-05 CN CN202322399627.6U patent/CN220622783U/en active Active
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