CN219655414U - High-sealing corrugated pipe stop valve - Google Patents
High-sealing corrugated pipe stop valve Download PDFInfo
- Publication number
- CN219655414U CN219655414U CN202320481478.5U CN202320481478U CN219655414U CN 219655414 U CN219655414 U CN 219655414U CN 202320481478 U CN202320481478 U CN 202320481478U CN 219655414 U CN219655414 U CN 219655414U
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- Prior art keywords
- valve
- packing
- sealing
- sealing ring
- valve rod
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- 238000007789 sealing Methods 0.000 title claims abstract description 105
- 238000012856 packing Methods 0.000 claims abstract description 85
- 239000000945 filler Substances 0.000 claims abstract description 21
- 210000004907 gland Anatomy 0.000 claims abstract description 18
- 230000001939 inductive effect Effects 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Sealing Devices (AREA)
Abstract
A valve cavity is formed in a valve body, a valve core is arranged in the valve cavity, one end of a valve rod extends into the valve cavity to be connected with the valve core, a valve cover is arranged on the valve body, sealing filler and a packing gland are arranged on the valve cover, the valve rod penetrates through the valve cover to extend into the valve cavity, a filler groove is formed between the valve rod and the valve cover, the sealing filler is arranged in the filler groove, the sealing filler comprises a packing seal ring and a packing body, the packing seal ring is arranged above the packing body, a compressing part is arranged on the packing seal ring, one end of the packing gland is in sealing connection with the compressing part, and the packing groove can be connected with the compressing part on the packing seal ring in a matched manner through the arrangement of the packing seal ring above the packing body, so that the packing seal ring is compressed on the packing body, and the compressing part is further compressed, the contact area between the compressing part and the inner wall of the packing groove is increased, and the sealing performance is improved.
Description
Technical Field
The utility model relates to the technical field of bellows stop valves, in particular to a high-sealing bellows stop valve.
Background
The upper sealing structure of the valve in the prior art, in particular to a sealing device between a valve rod and the upper part of a valve body, adopts a mode of compressing packing seal in the traditional sealing, and the packing precompression force is not adjustable, so that the sealing compensation cannot be realized, and the sealing effect is poor.
Disclosure of Invention
In view of this, the present utility model provides a high seal bellows shut-off valve.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a high seal bellows stop valve, includes valve body, valve rod and case, form the valve pocket in the valve body, the case sets up in the valve pocket, the one end of valve rod stretches into the valve pocket and is connected with the case, set up the valve gap on the valve body, set up sealing filler and gland on the valve gap, the valve rod runs through the valve gap and stretches into the valve pocket, form the packing groove between valve rod and the valve gap, sealing filler sets up in the packing inslot, sealing filler includes packing ring and filler body, the packing ring sets up in filler body top, the packing ring sets up the pressure part, gland's one end and the sealed meeting of pressure part.
Preferably, the packing ring protrudes to form a sealing end, the pressing part is a ring groove formed between the sealing end and the top end of the packing ring, the section of the pressing part is in an inclined structure, the inclined direction of the pressing part is that the outer side of the middle part of the packing body is inclined towards the center of the top end of the packing body, the packing cover is sleeved on the valve rod, and the bottom end of the packing cover extends into the pressing part to press and seal the inner wall of the sealing end and the top end of the packing body.
Preferably, the packing gland is provided with an upper sealing part and a lower sealing part, the lower sealing part is arranged at the bottom end of the upper sealing part, and the lower sealing part is arranged corresponding to the shape of the pressing part.
Preferably, the inner wall of the upper sealing part is provided with a plurality of inner sealing ring grooves, the outer wall of the upper sealing part is provided with a plurality of outer sealing ring grooves, sealing rings are arranged in the inner sealing ring grooves and the outer sealing ring grooves, the sealing rings in the inner sealing ring grooves are respectively in sealing connection with the inner wall of the upper sealing part and the valve rod, and the sealing rings in the outer sealing ring grooves are respectively in sealing connection with the outer wall of the upper sealing part and the valve cover.
Preferably, the top end of the valve rod is provided with an inductive switch, and the top end of the valve rod is connected with the inductive switch.
Preferably, the packing sealing ring is made of elastic rubber, and the packing body is flexible graphite.
The utility model has the beneficial effects that: according to the packing device, the packing sealing ring is arranged above the packing body, one end of the packing gland can extend into the packing groove to be connected with the pressing part on the packing sealing ring in a matched mode, so that the packing sealing ring is pressed on the packing body, meanwhile, the pressing part is further pressed, the contact area between the pressing part and the inner wall of the packing groove is increased, and therefore the sealing performance is improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is an enlarged view at a in fig. 1.
Description of the embodiments
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.
The utility model will be further described with reference to the drawings.
The utility model provides the following technical scheme:
as shown in fig. 1-2, the utility model discloses a high-sealing corrugated pipe stop valve, which comprises a valve body 1, a valve rod 2 and a valve core 3, wherein a valve cavity 4 is formed in the valve body 1, the valve core 3 is arranged in the valve cavity 4, one end of the valve rod 2 extends into the valve cavity 4 to be connected with the valve core 3, a valve cover 5 is arranged on the valve body 1, a sealing filler 6 and a packing gland 7 are arranged on the valve cover 5, the valve rod 2 extends into the valve cavity 4 through the valve cover 5, a filler groove 8 is formed between the valve rod 2 and the valve cover 5, the sealing filler 6 is arranged in the filler groove 8, the sealing filler 6 comprises a filler sealing ring 9 and a filler body 10, the filler sealing ring 9 is arranged above the filler body 10, a pressing part 11 is arranged on the filler sealing ring 9, and one end of the packing gland 7 is in sealing connection with the pressing part 11. Specifically, in this design, through setting up packing seal 9 in the top of packing body 10, packing gland 7's one end can stretch into packing groove 8 and packing seal 9 on compress tightly portion 11 cooperation be connected to compress tightly packing seal 9 on packing body 10, further compress tightly portion 11, make the area of contact between portion 11 and the packing groove 8 inner wall increase, thereby improve sealing performance.
Further, the packing sealing ring 9 protrudes to form a sealing end 12, the pressing part 11 is a ring groove formed between the sealing end 12 and the top end of the packing sealing ring 9, the section of the pressing part 11 is in an inclined structure, the inclined direction of the pressing part 11 is that the outer side of the middle part of the packing body 10 is inclined towards the center of the top end of the packing body 10, the packing gland 7 is sleeved on the valve rod 2, and the bottom end of the packing gland 7 extends into the pressing part 11 to press and seal the inner wall of the sealing end 12 and the top end of the packing body 10.
Further, the packing gland 7 has an upper seal portion 18 and a lower seal portion 13, the lower seal portion 13 is disposed at a bottom end of the upper seal portion 18, and the lower seal portion 13 is disposed corresponding to a shape of the pressing portion 11.
Further, the inner wall of the upper sealing portion 18 is provided with a plurality of inner sealing ring grooves 14, the outer wall of the upper sealing portion 18 is provided with a plurality of outer sealing ring grooves 15, sealing rings are respectively arranged in the inner sealing ring grooves 14 and the outer sealing ring grooves 15, the sealing rings in the inner sealing ring grooves 14 are respectively in sealing connection with the inner wall of the upper sealing portion 18 and the valve rod 2, and the sealing rings in the outer sealing ring grooves 15 are respectively in sealing connection with the outer wall of the upper sealing portion 18 and the valve cover 5. Specifically, by arranging the inner seal ring and the outer seal ring on the upper seal part 18 of the packing gland 7, the seal strength between the packing gland 7 and the valve rod and the valve cover can be effectively enhanced, and the possibility of medium leakage is reduced.
Further, an inductive switch 16 is disposed at the top end of the valve rod 2, and the top end of the valve rod 2 is connected with the inductive switch 16. Specifically, in this embodiment, the inductive switch 16 is a valve feedback device in the prior art, which is not described herein, and the top end of the valve rod 2 is further provided with a pneumatic actuator 17, and the pneumatic actuator 17 is connected with the valve rod 2 to drive the valve core 3 to open and close in the valve cavity 4.
Further, the packing seal ring 9 is made of elastic rubber, and the packing body 10 is made of flexible graphite. Specifically, in this embodiment, the packing ring 9 made of elastic rubber can deform under the compression of the packing gland 7, so as to better contact with the inner wall of the packing groove 8, and reduce damage to the packing body 10 due to excessive pressure.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a high seal bellows stop valve, includes valve body, valve rod and case, form the valve pocket in the valve body, the case sets up in the valve pocket, the one end of valve rod stretches into the valve pocket and is connected with the case, set up the valve gap on the valve body, set up sealing filler and gland on the valve gap, its characterized in that; the valve rod penetrates through the valve cover and stretches into the valve cavity, a packing groove is formed between the valve rod and the valve cover, sealing packing is arranged in the packing groove and comprises a packing sealing ring and a packing body, the packing sealing ring is arranged above the packing body, a pressing part is arranged on the packing sealing ring, and one end of the packing gland is in sealing connection with the pressing part.
2. The high seal bellows shut-off valve of claim 1, wherein: the packing sealing ring is protruded to form a sealing end, the pressing part is a ring groove formed between the sealing end and the top end of the packing sealing ring, the section of the pressing part is in an inclined structure, the inclined direction of the pressing part is that the outer side of the middle part of the packing body is inclined towards the center of the top end of the packing body, the packing pressing cover is sleeved on the valve rod, and the bottom end of the packing pressing cover extends into the pressing part to press and seal the inner wall of the sealing end and the top end of the packing body.
3. The high seal bellows shut-off valve of claim 2, wherein: the packing gland is provided with an upper sealing part and a lower sealing part, the lower sealing part is arranged at the bottom end of the upper sealing part, and the lower sealing part is arranged corresponding to the shape of the pressing part.
4. A high seal bellows shut-off valve according to claim 3, wherein: the inner wall of the upper sealing part is provided with a plurality of inner sealing ring grooves, the outer wall of the upper sealing part is provided with a plurality of outer sealing ring grooves, sealing rings are arranged in the inner sealing ring grooves and the outer sealing ring grooves, the sealing rings in the inner sealing ring grooves are respectively in sealing connection with the inner wall of the upper sealing part and the valve rod, and the sealing rings in the outer sealing ring grooves are respectively in sealing connection with the outer wall of the upper sealing part and the valve cover.
5. The high seal bellows shut-off valve of claim 1, wherein: the top of valve rod sets up inductive switch, the top of valve rod is connected with inductive switch.
6. The high seal bellows shut-off valve of claim 1, wherein: the packing sealing ring is made of elastic rubber, and the packing body is made of flexible graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320481478.5U CN219655414U (en) | 2023-03-07 | 2023-03-07 | High-sealing corrugated pipe stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320481478.5U CN219655414U (en) | 2023-03-07 | 2023-03-07 | High-sealing corrugated pipe stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219655414U true CN219655414U (en) | 2023-09-08 |
Family
ID=87862584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320481478.5U Active CN219655414U (en) | 2023-03-07 | 2023-03-07 | High-sealing corrugated pipe stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219655414U (en) |
-
2023
- 2023-03-07 CN CN202320481478.5U patent/CN219655414U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |