CN219774857U - Casting sealing structure applied to flange ball valve - Google Patents
Casting sealing structure applied to flange ball valve Download PDFInfo
- Publication number
- CN219774857U CN219774857U CN202320964830.0U CN202320964830U CN219774857U CN 219774857 U CN219774857 U CN 219774857U CN 202320964830 U CN202320964830 U CN 202320964830U CN 219774857 U CN219774857 U CN 219774857U
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- valve
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- valve rod
- seal
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- 238000007789 sealing Methods 0.000 title claims abstract description 146
- 238000005266 casting Methods 0.000 title claims description 14
- 239000000945 filler Substances 0.000 claims abstract description 23
- 238000012856 packing Methods 0.000 claims description 16
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization 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 provides a be applied to foundry goods seal structure of flange ball valve, including the valve body, the valve rod, valve gap and valve ball, form the valve pocket in the valve body, the valve gap sets up on the valve body, the valve ball sets up in the valve pocket, the valve rod runs through the valve gap and is connected with the valve ball, set up valve gap sealing portion on the valve gap, set up seal structure between valve gap sealing portion and the valve rod respectively, both sides of seal structure are sealed with valve gap sealing portion and valve rod and meet, set up valve gap sealing portion on the valve gap, and set up seal structure between valve gap sealing portion and valve rod, firmly seal valve gap and valve rod, simultaneously, the setting of first sealing member and second sealing member in the seal structure has carried out double seal to valve rod and valve gap sealing portion, again through setting up the sealing filler, set up the annular member and extrude its sealing performance better to it on the sealing filler, set up the filler backing ring again, have good resilience, the leakproofness of valve gap and valve rod has been further improved.
Description
Technical Field
The utility model relates to a valve casting, in particular to a casting sealing structure applied to a flange ball valve.
Background
The valve is a basic component in a pipeline system, the valve can be operated manually or by a hand wheel, a handle or a pedal, the pressure, the temperature and the flow rate of a fluid medium can be changed through control, the valve can continuously or repeatedly operate the changes, such as a safety valve installed in a hot water system or a steam boiler, an automatic control valve is adopted in a more complex control system according to the requirement of external input (namely, adjusting the setting point of the continuous change of a flowing pipeline), and a casting is a metal molded object obtained by various casting methods, namely, smelted liquid metal is poured into a pre-prepared casting mould by pouring, injection, suction or other casting methods, and the obtained object has a certain shape, size and performance after the subsequent processing means such as polishing after cooling.
Sealing filler is adopted in sealing between valve rod and valve gap of current traditional flange ball valve generally, thereby leads to the sealing filler between valve rod and the valve gap can ageing appear leaking the condition after long-term use, is inconvenient for use, causes the job stabilization nature of valve to reduce and later maintenance cost increases simultaneously easily, greatly reduced efficiency.
Disclosure of Invention
In view of this, the present utility model provides a cast sealing structure for a flanged ball valve.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a be applied to foundry goods seal structure of flange ball valve, includes valve body, valve rod, valve gap and valve ball, form the valve pocket in the valve body, the valve gap sets up on the valve body, the valve ball sets up in the valve pocket, the valve rod runs through the valve gap and is connected with the valve ball, set up the valve gap sealing portion on the valve gap, set up seal structure between valve gap sealing portion and the valve rod, seal structure's both sides respectively with valve gap sealing portion and valve rod seal meet, seal structure is the annular structure of formation on the valve rod inner wall, seal structure includes seal assembly, packing grommet, first seal and second seal, first seal, second seal, seal assembly and packing grommet set gradually from top to bottom in seal structure's position.
Preferably, the first sealing element is close to one side of the valve rod and is provided with a first sealing groove, a first sealing ring is arranged in the first sealing groove and is in sealing connection with the groove wall of the first sealing groove, the first sealing ring protrudes towards one side of the valve rod to form a protruding portion, the cross section of the protruding portion is in two semicircular arrangement, and the valve rod and the first sealing element are sealed through the first sealing ring.
Preferably, the second sealing piece is close to one side of the valve cover sealing part and is provided with a second sealing groove, a second sealing ring is arranged in the second sealing groove, two sides of the second sealing ring are respectively in sealing connection with the groove wall of the second sealing groove and the valve cover sealing part, and the valve cover sealing part and the second sealing piece are sealed through the second sealing ring.
Preferably, the sealing assembly comprises a plurality of sealing fillers and annular pieces, wherein the annular pieces are arranged along the circumference of the sealing fillers, the sealing fillers form annular grooves corresponding to the plurality of annular pieces, and the annular pieces extend into the annular grooves to be connected with the sealing fillers in a sealing way.
Preferably, the sealing filler is polytetrafluoroethylene.
The utility model has the beneficial effects that: according to the casting sealing structure applied to the flange ball valve, the valve cover sealing part is arranged on the valve cover, the sealing structure is arranged between the valve cover sealing part and the valve rod, the valve cover and the valve rod are firmly sealed, meanwhile, the first sealing element and the second sealing element in the sealing structure are arranged to double seal the valve rod and the valve cover sealing part, sealing filler is arranged, and the annular element is arranged on the sealing filler to extrude the sealing filler, so that the sealing performance is better, the filler gasket ring is arranged, the rebound resilience is good, and the sealing performance of the valve cover and the valve rod is further 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.
Reference numerals:
1. valve body, 2, valve rod, 3, valve gap, 4, valve ball, 5, valve pocket, 6, valve gap sealing part, 7, seal structure, 8, seal assembly, 9, packing backing ring, 10, first sealing piece, 11, second sealing piece, 12, first seal groove, 13, first seal ring, 14, bulge, 15, second seal groove, 16, second seal ring, 17, sealing packing, 18, annular piece, 19, ring channel.
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.
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 casting sealing structure applied to a flange ball valve, which comprises a valve body 1, a valve rod 2, a valve cover 3 and a valve ball 4, wherein a valve cavity 5 is formed in the valve body 1, the valve cover 3 is arranged on the valve body 1, the valve ball 4 is arranged in the valve cavity 5, and the valve rod 2 penetrates through the valve cover 3 to be connected with the valve ball 4, and is characterized in that: the valve cover 3 is provided with the valve cover sealing part 6, a sealing structure 7 is arranged between the valve cover sealing part 6 and the valve rod 2, two sides of the sealing structure 7 are respectively in sealing connection with the valve cover sealing part 6 and the valve rod 2, in the design, the valve cover 3 is provided with the valve cover sealing part 6, the valve cover 3 and the valve rod 2 are firmly sealed by arranging the sealing structure 7 between the valve cover sealing part 6 and the valve rod 2, meanwhile, the valve rod 2 and the valve cover sealing part 6 are doubly sealed by arranging a sealing filler 17, and an annular piece 18 is arranged on the sealing filler 17 to extrude the sealing filler to ensure that the sealing performance is better, and a filler gasket 9 is arranged, so that the sealing performance of the valve cover 3 and the valve rod 2 is further improved.
Further, the seal structure 7 is a ring groove structure formed on the inner wall of the valve rod 2, the seal structure 7 comprises a seal assembly 8, a packing backing ring 9, a first seal 10 and a second seal 11, the positions of the first seal 10, the second seal 11, the seal assembly 8 and the packing backing ring 9 in the seal structure 7 are sequentially arranged from top to bottom, a first seal groove 12 is formed on one side, close to the valve rod 2, of the first seal 10, a first seal ring 13 is arranged in the first seal groove 12, the first seal ring 13 is in sealing connection with the groove wall of the first seal groove 12, the first seal ring 13 protrudes towards one side of the valve rod 2 to form a protruding portion 14, the cross section of the protruding portion 14 is in two semicircular arrangement, the valve rod 2 and the first seal 10 are sealed through the first seal ring 13, in the design, meanwhile, the cross section of the first seal ring 13 is semicircular arrangement and protrudes towards one side of the valve rod 2, and the sealing performance is further enhanced.
Further, the second sealing member 11 is close to the valve gap sealing portion 6 one side and sets up second seal groove 15, set up second sealing washer 16 in the second seal groove 15, the both sides of second sealing washer 16 respectively with the cell wall of second seal groove 15 and valve gap sealing portion 6 seal meet, valve gap sealing portion 6 and second sealing member 11 seal through second sealing washer 16, in this design, through having set up second seal groove 15 and second sealing washer 16, make valve gap sealing portion 6 and second sealing member 11 seal, the setting of first sealing member 10 and second sealing member 11 has carried out double seal to valve rod 2 and valve gap 3 simultaneously.
Further, the seal assembly 8 comprises a seal packing 17 and an annular member 18, the annular member 18 is provided with a plurality of annular members 18 and is arranged along the circumferential direction of the seal packing 17, the seal packing 17 corresponds to the annular members 18 to form an annular groove 19, the annular member 18 extends into the annular groove 19 to be in sealing connection with the seal packing 17, the seal packing 17 is polytetrafluoroethylene, in the design, the cross section of the annular member 18 is rectangular, the seal packing 17 is extruded by the annular member 18, so that the sealing performance of the seal packing 17 is better, meanwhile, the seal packing is polytetrafluoroethylene, the defect of poor elasticity is overcome, the elasticity of rubber is overcome, the original characteristics of the rubber are not lost, the performance is greatly improved, and a good seal effect is achieved on a valve rod.
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 (5)
1. The utility model provides a be applied to foundry goods seal structure of flange ball valve, includes valve body, valve rod, valve gap and valve ball, form the valve pocket in the valve body, the valve gap sets up on the valve body, the valve ball sets up in the valve pocket, the valve rod runs through the valve gap and is connected its characterized in that with the valve ball: the valve cover is provided with a valve cover sealing part, a sealing structure is arranged between the valve cover sealing part and the valve rod, two sides of the sealing structure are respectively connected with the valve cover sealing part and the valve rod in a sealing mode, the sealing structure is a ring groove structure formed on the inner wall of the valve rod, the sealing structure comprises a sealing assembly, a packing backing ring, a first sealing member and a second sealing member, and the positions of the first sealing member, the second sealing member, the sealing assembly and the packing backing ring in the sealing structure are sequentially arranged from top to bottom.
2. The casting sealing structure applied to a flange ball valve according to claim 1, wherein: the valve rod is characterized in that a first sealing groove is formed in one side, close to the valve rod, of the first sealing element, a first sealing ring is arranged in the first sealing groove and is in sealing connection with the groove wall of the first sealing groove, the first sealing ring protrudes towards one side of the valve rod to form a protruding portion, the cross section of the protruding portion is in two semicircular arrangement, and the valve rod and the first sealing element are sealed through the first sealing ring.
3. The casting sealing structure applied to a flange ball valve according to claim 1, wherein: the second sealing piece is close to one side of the valve cover sealing part and is provided with a second sealing groove, a second sealing ring is arranged in the second sealing groove, two sides of the second sealing ring are respectively in sealing connection with the groove wall of the second sealing groove and the valve cover sealing part, and the valve cover sealing part and the second sealing piece are sealed through the second sealing ring.
4. The casting sealing structure applied to a flange ball valve according to claim 1, wherein: the sealing assembly comprises sealing filler and annular pieces, wherein a plurality of the annular pieces are arranged along the circumferential direction of the sealing filler, the sealing filler corresponds to the plurality of the annular pieces to form an annular groove, and the annular pieces extend into the annular groove to be connected with the sealing filler in a sealing way.
5. The casting sealing structure applied to the flange ball valve according to claim 4, wherein: the sealing filler is polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320964830.0U CN219774857U (en) | 2023-04-24 | 2023-04-24 | Casting sealing structure applied to flange ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320964830.0U CN219774857U (en) | 2023-04-24 | 2023-04-24 | Casting sealing structure applied to flange ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219774857U true CN219774857U (en) | 2023-09-29 |
Family
ID=88108402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320964830.0U Active CN219774857U (en) | 2023-04-24 | 2023-04-24 | Casting sealing structure applied to flange ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219774857U (en) |
-
2023
- 2023-04-24 CN CN202320964830.0U patent/CN219774857U/en active Active
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