CN219345684U - Bellows governing valve seal structure - Google Patents
Bellows governing valve seal structure Download PDFInfo
- Publication number
- CN219345684U CN219345684U CN202320478272.7U CN202320478272U CN219345684U CN 219345684 U CN219345684 U CN 219345684U CN 202320478272 U CN202320478272 U CN 202320478272U CN 219345684 U CN219345684 U CN 219345684U
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- valve
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- top cover
- bellows
- valve rod
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- 238000007789 sealing Methods 0.000 claims abstract description 36
- 230000001105 regulatory effect Effects 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model relates to a sealing structure of a corrugated pipe regulating valve, which comprises a valve body, wherein a valve core is arranged in the valve body, a valve cover is arranged on the valve body, a valve rod is arranged in the valve cover, the lower end of the valve rod is connected with the valve core, a top cover is arranged on the valve cover, and a limiting ring is arranged between the valve cover and the top cover; one end of the valve rod penetrates through the valve cover and the top cover and is connected with the valve core, a corrugated pipe is arranged between the valve rod and the valve cover, a sealing plate is arranged at the upper end of the corrugated pipe, and the sealing plate is clamped between the limiting ring and the top cover; the lower extreme of bellows is provided with the locating plate, the annular boss on locating plate and the valve rod is connected. The original integrated valve cover is divided into the valve cover and the top cover, so that the valve rod, the corrugated pipe and other parts can be conveniently installed and replaced, and the top cover can be designed in a modularized manner, thereby being beneficial to standardization and improving the sharing rate; the external diameter of the sealing plate at the upper end of the corrugated pipe is smaller than the internal diameter of the mounting hole, and the corrugated pipe and other parts can directly pass through the mounting hole, so that the assembly is convenient.
Description
Technical Field
The utility model belongs to the technical field of regulating valves, and relates to a sealing structure of a corrugated pipe regulating valve.
Background
The corrugated pipe regulating valve is an extension product of the regulating valve, and usually, the corrugated pipe regulating valve needs better sealing performance, one end of the corrugated pipe needs to be provided with a sealing ring plate so as to position and seal the corrugated pipe, however, the size of the ring plate is larger, the size of an additionally arranged sealing gasket is larger, and the strength requirement on the connecting bolt is higher in order to ensure the sealing performance of the gasket; and the valve cover is manufactured in an integrated way, has poor replaceability and is relatively inconvenient to install and maintain.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, solve the problem of inconvenient installation and maintenance of a corrugated pipe regulating valve, and provide a sealing structure of the corrugated pipe regulating valve.
In order to achieve the above purpose, the following technical scheme is adopted:
the corrugated pipe regulating valve sealing structure comprises a valve body, a valve cover, a valve rod, a corrugated pipe and a valve core, wherein the valve core is arranged in the valve body, the valve cover is arranged on the valve body, the valve rod is arranged in the valve cover, the lower end of the valve rod is connected with the valve core, a top cover is arranged on the valve cover, and a limiting ring is arranged between the valve cover and the top cover; one end of the valve rod penetrates through the valve cover and the top cover and is connected with the valve core, a corrugated pipe is arranged between the valve rod and the valve cover, a sealing plate is arranged at the upper end of the corrugated pipe, and the sealing plate is clamped between the limiting ring and the top cover; the lower extreme of bellows is provided with the locating plate, the annular boss on locating plate and the valve rod is connected.
Preferably, a valve seat is arranged in the valve body, and the valve core can be matched with the valve seat.
Preferably, the top cover is connected with the valve cover by a first connecting piece, and the valve cover is mounted on the valve body by a second connecting piece.
Preferably, a mounting hole for mounting the valve rod is formed in the valve cover, a step groove is formed in the upper end of the mounting hole, and the limiting ring is mounted in the step groove.
Preferably, the top cover is provided with a valve rod hole, and the middle part of the valve rod hole is provided with an annular clamping strip protruding inwards.
Preferably, an annular pressing table is arranged below the top cover, and the annular pressing table can be matched with the limiting ring.
Preferably, the positioning plate and the annular boss are fixed by welding.
Preferably, a connecting ring is arranged between the corrugated pipes.
Preferably, a detection interface is arranged on one side of the top cover, and one end of the detection interface is communicated with the valve rod hole.
Preferably, the limiting ring consists of two limiting arc plates with the same structure.
Compared with the prior art, the utility model has the following advantages:
the original integrated valve cover is divided into the valve cover and the top cover, so that the valve rod, the corrugated pipe and other parts can be conveniently installed and replaced, and the top cover can be designed in a modularized manner, thereby being beneficial to standardization and improving the sharing rate; the external diameter of the sealing plate at the upper end of the corrugated pipe is smaller than the internal diameter of the mounting hole, and the corrugated pipe and other parts can directly pass through the mounting hole, so that the assembly is convenient.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic view of a bellows portion of the present utility model.
Fig. 3 is a schematic view of a stop collar according to the present utility model.
Fig. 4 is a schematic view of a valve stem of the present utility model.
FIG. 5 is a schematic view of the valve cover and cap of the present utility model.
In the figure: 1. a valve body; 2. a valve cover; 3. a valve stem; 4. a bellows; 5. a valve core; 6. a top cover; 7. a limiting ring; 8. a sealing plate; 9. a positioning plate; 10. an annular boss; 11. a valve seat; 12. a first connector; 13. a second connector; 14. a mounting hole; 15. a step groove; 16. a valve stem bore; 17. an annular clamping strip; 19. a connecting ring; 20. detecting an interface; 21. an annular pressing table; 22. and limiting the arc plate.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
As shown in fig. 1-5, the sealing structure of the bellows adjusting valve comprises a valve body 1, a valve cover 2, a valve rod 3, a bellows 4 and a valve core 5, wherein the valve core 5 is arranged in the valve body 1, the valve cover 2 is arranged on the valve body 1, the valve rod 3 is arranged in the valve cover 2, the lower end of the valve rod 3 is connected with the valve core 5, and the valve rod 3 can drive the valve core 5 to move up and down in the valve body 1 when moving up and down;
the valve cover 2 is provided with the top cover 6, a limiting ring 7 is arranged between the valve cover 2 and the top cover 6, and the top cover 6 and the valve cover 2 are in split type design, so that the valve rod 3, the corrugated pipe 4 and the limiting ring 7 are conveniently installed;
one end of the valve rod 3 penetrates through the valve cover 2 and the top cover 6 and is connected with the valve core 5, a corrugated pipe 4 is arranged between the valve rod 3 and the valve cover 2, a sealing plate 8 is arranged at the upper end of the corrugated pipe 4, the sealing plate 8 is clamped between the limiting ring 7 and the top cover 6, the position of the sealing plate 8 is fixed, namely the upper end of the corrugated pipe 4 is fixed, a closed cavity is formed among the corrugated pipe 4, the sealing plate 8, the limiting ring 7 and the valve cover 2, and fluid cannot leak after entering the closed cavity;
the lower extreme of bellows 4 is provided with locating plate 9, locating plate 9 is connected with the annular boss 10 on the valve rod 3, and the lower extreme and the valve rod 3 fixed connection of bellows 4 promptly, valve rod 3.
Further, a valve seat 11 is disposed in the valve body 1, and the valve core 5 can be matched with the valve seat 11.
Further, the top cover 6 is connected to the valve cover 2 by a first connecting member 12, and the valve cover 2 is mounted to the valve body 1 by a second connecting member 13.
Further, a mounting hole 14 for mounting the valve rod 3 is formed in the valve cover 2, and the inner diameter of the mounting hole 14 is larger than the outer diameter of the sealing plate 8, so that the corrugated pipe 4 and the sealing plate 8 can be assembled conveniently; the upper end of the mounting hole 14 is provided with a step groove 15, and the limiting ring 7 is mounted in the step groove 15.
Further, a valve rod hole 16 is formed in the top cover 6, an annular clamping strip 17 protruding inwards is arranged in the middle of the valve rod hole 16, and the annular clamping strip 17 plays a limiting role on the valve rod 3.
Further, an annular pressing table 21 is arranged below the top cover 6, the annular pressing table 21 can be matched with the limiting ring 7, the lower surface of the annular pressing table 21 can press the upper surface of the limiting ring 7 to fix the limiting ring 7, and the inner side wall of the annular pressing table 21 can fix the sealing plate 8.
Further, the positioning plate 9 and the annular boss 10 are fixed by welding.
Further, a connection ring 19 is provided between the bellows 4.
Further, a detection interface 20 is provided on one side of the top cover 6, one end of the detection interface 20 is communicated with the valve rod hole 16, and a pressure detection meter can be installed on the detection interface 20 to detect whether leakage occurs in the bellows.
Further, the limiting ring 7 is composed of two limiting arc plates 22 with the same structure, and the limiting arc plates 22 facilitate assembly of the sealing plate 8.
Working principle: when the valve cover is used, the positioning plate 9 at the lower end of the corrugated pipe 4 is fixed with the annular boss 10 on the valve rod 3 by welding, then the lower end of the valve rod 3 is connected with the valve core 5, the valve cover 2 is arranged on the valve body 1, when the valve cover 2 is arranged, the valve rod 3 and the corrugated pipe 4 integrally pass through the inside of the mounting hole 14, the limiting ring 7 is arranged in the stepped groove 15 at the upper end of the valve cover 2, then the lower surface of the sealing plate 8 abuts against the upper surface of the limiting ring 7, and then the top cover 6 is arranged on the valve cover 2.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present utility model, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the utility model, and are also considered to be within the scope of the utility model.
Claims (10)
1. The utility model provides a bellows governing valve seal structure, includes valve body (1), valve gap (2), valve rod (3), bellows (4) and case (5), be provided with case (5) in valve body (1), be provided with valve gap (2) on valve body (1), be provided with valve rod (3) in valve gap (2), the lower extreme of valve rod (3) is connected characterized by with case (5): a top cover (6) is arranged on the valve cover (2), and a limiting ring (7) is arranged between the valve cover (2) and the top cover (6); one end of the valve rod (3) penetrates through the valve cover (2) and the top cover (6) and is connected with the valve core (5), a corrugated pipe (4) is arranged between the valve rod (3) and the valve cover (2), a sealing plate (8) is arranged at the upper end of the corrugated pipe (4), and the sealing plate (8) is clamped between the limiting ring (7) and the top cover (6); the lower extreme of bellows (4) is provided with locating plate (9), locating plate (9) are connected with annular boss (10) on valve rod (3).
2. The bellows regulating valve sealing structure according to claim 1, characterized in that: a valve seat (11) is arranged in the valve body (1), and the valve core (5) can be matched with the valve seat (11).
3. The bellows regulating valve sealing structure according to claim 1, characterized in that: the top cover (6) is connected with the valve cover (2) by a first connecting piece (12), and the valve cover (2) is arranged on the valve body (1) by a second connecting piece (13).
4. The bellows regulating valve sealing structure according to claim 1, characterized in that: the valve cover (2) is internally provided with a mounting hole (14) for mounting the valve rod (3), the upper end of the mounting hole (14) is provided with a step groove (15), and the limiting ring (7) is mounted in the step groove (15).
5. The bellows regulating valve sealing structure according to claim 1, characterized in that: the top cover (6) is provided with a valve rod hole (16), and the middle part of the valve rod hole (16) is provided with an annular clamping strip (17) protruding inwards.
6. The bellows regulating valve sealing structure according to claim 1, characterized in that: an annular pressing table (21) is arranged below the top cover (6), and the annular pressing table (21) can be matched with the limiting ring (7).
7. The bellows regulating valve sealing structure according to claim 1, characterized in that: the positioning plate (9) and the annular boss (10) are fixed by welding.
8. The bellows regulating valve sealing structure according to claim 1, characterized in that: a connecting ring (19) is arranged between the corrugated pipes (4).
9. The bellows regulating valve sealing structure according to claim 5, wherein: one side of the top cover (6) is provided with a detection interface (20), and one end of the detection interface (20) is communicated with the valve rod hole (16).
10. The bellows regulating valve sealing structure according to claim 1, characterized in that: the limiting ring (7) consists of two limiting arc plates (22) with the same structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320478272.7U CN219345684U (en) | 2023-03-13 | 2023-03-13 | Bellows governing valve seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320478272.7U CN219345684U (en) | 2023-03-13 | 2023-03-13 | Bellows governing valve seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219345684U true CN219345684U (en) | 2023-07-14 |
Family
ID=87097029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320478272.7U Active CN219345684U (en) | 2023-03-13 | 2023-03-13 | Bellows governing valve seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219345684U (en) |
-
2023
- 2023-03-13 CN CN202320478272.7U patent/CN219345684U/en active Active
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| GR01 | Patent grant |