CN221075280U - Anti-drop butterfly valve sealing ring - Google Patents
Anti-drop butterfly valve sealing ring Download PDFInfo
- Publication number
- CN221075280U CN221075280U CN202322990326.0U CN202322990326U CN221075280U CN 221075280 U CN221075280 U CN 221075280U CN 202322990326 U CN202322990326 U CN 202322990326U CN 221075280 U CN221075280 U CN 221075280U
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- CN
- China
- Prior art keywords
- stainless steel
- sealing ring
- steel ring
- ring
- sealing washer
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- 238000007789 sealing Methods 0.000 title claims abstract description 96
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 63
- 239000010935 stainless steel Substances 0.000 claims abstract description 63
- 244000188472 Ilex paraguariensis Species 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Lift Valve (AREA)
Abstract
An anti-drop butterfly valve sealing ring belongs to the technical field of valve sealing. The utility model comprises a slotted sealing ring and a sealing ring pressing plate, wherein an E-shaped groove is formed in the slotted sealing ring, a first stainless steel ring and a second stainless steel ring which can be mutually matched are arranged in the E-shaped groove, a threaded hole is formed in the first stainless steel ring, through holes are formed in the sealing ring pressing plate and the slotted sealing ring at the same time, after the sealing ring pressing plate is matched and attached with the slotted sealing ring, the threaded hole corresponds to the through hole, an expansion screw penetrates through the through hole from the outside of the sealing ring pressing plate and is matched with the threaded hole, the rear end part of the expansion screw penetrates through the first stainless steel ring to be propped against the second stainless steel ring, and then the expansion screw is locked by a locking nut outside the sealing ring pressing plate. The utility model improves the structure based on the original flat plate type sealing ring, and can prevent the sealing ring from falling off during use.
Description
Technical Field
The utility model belongs to the technical field of valve sealing, and particularly relates to an anti-drop butterfly valve sealing ring.
Background
In drinking water and seawater media, rubber-lined butterfly valves are increasingly adopted by more projects due to excellent corrosion resistance and higher cost performance. The butterfly valve with rubber lining has the structure that a layer of rubber is coated on the surfaces of the valve body and the butterfly plate, which are contacted with the medium, so as to avoid the contact between the medium and the metal surface.
The butterfly plate sealing ring structural formula of the non-lining rubber is that narrower grooves are processed on the butterfly plate and the sealing ring pressing plate, bosses are arranged on two sides of the butterfly plate sealing ring, and the bosses are pressed into the grooves for fixing. However, due to the limitation of the rubber lining process of the rubber lining butterfly valve, rubber cannot be lined in a narrow groove, so that the butterfly plate cannot be grooved to install the butterfly plate sealing ring as in the prior art. In the prior art, the butterfly plate sealing ring is only made into a flat plate sealing ring, and the butterfly plate sealing ring in the form is completely fixed by virtue of friction force generated when the butterfly plate and the sealing ring pressing plate are pressed by the pressing plate screw.
However, the sealing ring with the structure can fall off in a whole circle, and the analysis is that the flat plate type sealing ring is fixed between the butterfly plate and the sealing ring pressing plate completely by friction force. After the butterfly valve is used, the friction coefficient is reduced due to aging and hardening, and in the opening and closing process of the butterfly valve, the flat plate type sealing ring is pulled out from the middle of the butterfly plate and the sealing ring pressing plate by friction force of the valve body sealing ring, so that the flat plate type sealing ring falls off.
Disclosure of utility model
Aiming at the problems, the utility model overcomes the defects of the prior art and provides an anti-drop butterfly valve sealing ring; the utility model improves the structure based on the original flat plate type sealing ring, and can prevent the sealing ring from falling off during use.
In order to achieve the above purpose, the present utility model adopts the following technical scheme.
The utility model provides an anti-falling butterfly valve sealing ring which is characterized by comprising a slotted sealing ring and a sealing ring pressing plate, wherein an E-shaped groove is formed in the slotted sealing ring, a first stainless steel ring and a second stainless steel ring which can be mutually matched are arranged in the E-shaped groove, a threaded hole is formed in the first stainless steel ring, through holes are formed in the sealing ring pressing plate and the slotted sealing ring at the same time, after the sealing ring pressing plate is matched and attached with the slotted sealing ring, the threaded hole corresponds to the through holes, an expansion screw penetrates through the through holes from the outside of the sealing ring pressing plate and then is matched with the threaded holes, the expansion screw penetrates through the rear end part of the first stainless steel ring to prop against the second stainless steel ring, then the expansion screw is locked by a locking nut outside the sealing ring pressing plate, and a mounting screw hole is formed in the sealing ring pressing plate and is connected with a butterfly plate by the pressing plate through the pressing plate.
Further, the edge of the first stainless steel ring is provided with a clamping protrusion, the edge of the second stainless steel ring is provided with a groove, and the clamping protrusion can be matched with the groove, so that the first stainless steel ring and the second stainless steel ring can only move axially relatively.
Further, the first stainless steel ring is L-shaped, the second stainless steel ring is concave, the first stainless steel ring and the second stainless steel ring are combined together to form a structure matched with the E-shaped groove, and the concave surface of the second stainless steel ring is embedded in the grooved sealing ring.
Further, the first stainless steel ring and the second stainless steel ring are formed by sequentially connecting a plurality of sections, connecting grooves are formed in cooperation of adjacent sections, and the adjacent sections are connected together by installing connecting blocks in the connecting grooves.
The utility model has the beneficial effects of.
According to the utility model, the lining rubber in the narrow groove can be realized through the expansion structure, and the sealing ring is arranged in the groove and cannot fall off; the novel structure sealing ring is improved on the basis of the flat plate type sealing ring in the prior art, the original flat plate type sealing ring has the same appearance and size, the sealing ring can be directly replaced on the existing butterfly valve, the butterfly valve does not need to be replaced, and waste is avoided.
Drawings
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description is presented by way of example only and is not intended to limit the utility model.
Fig. 1 is a schematic view of the overall cross-sectional structure of the present utility model after installation.
FIG. 2 is a schematic cross-sectional view of a grooved seal ring of the present utility model.
FIG. 3 is a schematic cross-sectional view of the grooved seal ring of the present utility model after two stainless steel rings are installed therein.
Fig. 4 is a schematic diagram of a combination of two stainless steel rings of the present utility model.
FIG. 5 is a schematic illustration of a segmented connection of a grooved seal ring or seal ring platen of the present utility model.
The marks in the figure: the novel stainless steel sealing device comprises a grooved sealing ring 1, a sealing ring pressing plate 2, an E-shaped groove 3, a first stainless steel ring 4, a second stainless steel ring 5, an expansion screw 6, a locking nut 7, a pressing plate screw 8, a clamping protrusion 9, a groove 10, a section 11, a connecting block 12, a valve body 13 and a butterfly plate 14.
Detailed Description
As shown in the attached drawings, the embodiment provides an anti-falling butterfly valve sealing ring, which comprises a grooved sealing ring 1 and a sealing ring pressing plate 2.
The grooved sealing ring 1 is provided with an E-shaped groove 3 at the inner diameter, a first stainless steel ring 4 and a second stainless steel ring 5 which can be matched with each other are arranged in the E-shaped groove 3, the first stainless steel ring 4 is L-shaped, the second stainless steel ring 5 is concave, the first stainless steel ring 4 and the second stainless steel ring 5 are combined together to form a structure matched with the E-shaped groove 3, and the concave surface of the second stainless steel ring 5 is embedded in the grooved sealing ring 1.
The edge of the first stainless steel ring 4 is provided with a clamping protrusion 9, the edge of the second stainless steel ring 5 is provided with a groove 10, and the clamping protrusion 9 can be matched with the groove 10, so that the first stainless steel ring 4 and the second stainless steel ring 5 can only move axially relatively.
The first stainless steel ring 4 is provided with a threaded hole, the sealing ring pressing plate 2 and the grooved sealing ring 1 are simultaneously provided with a through hole, the sealing ring pressing plate 2 is matched with the grooved sealing ring 1, the threaded hole corresponds to the through hole, the expansion screw 6 is arranged to penetrate through the through hole from the outside of the sealing ring pressing plate 2 and then is matched with the threaded hole, the expansion screw 6 penetrates through the rear end of the first stainless steel ring 4 to be propped against the second stainless steel ring 5, and the expansion screw 6 is locked by the locking nut 7 outside the sealing ring pressing plate 2.
The sealing ring pressing plate 2 is also provided with a mounting screw hole, and the sealing ring pressing plate 2 is connected to the butterfly plate 14 through the pressing plate screw 8 penetrating through the mounting screw hole.
During assembly, the first stainless steel ring 4 and the second stainless steel ring 5 are combined and then pressed into the E-shaped groove 3 of the grooved sealing ring 1, the combined grooved sealing ring 1 is installed on the sealing ring pressing plate 2 through the expansion screw 6, then the sealing ring pressing plate 2 and the grooved sealing ring 1 are jointly arranged between the valve body 13 and the butterfly plate 14, the butterfly plate 14 is installed through the pressing plate screw 8, the pressing plate screw 8 is screwed, and the grooved sealing ring 1 is pressed until the butterfly valve achieves sealing.
For the butterfly valve with large caliber, the butterfly valve sealing ring can be replaced or maintained in the pipeline, in order to enable the stainless steel ring to enter the pipeline from the manhole, the first stainless steel ring 4 and the second stainless steel ring 5 are respectively arranged to be sequentially connected through a plurality of sections 11, the adjacent sections 11 are matched and commonly provided with connecting grooves, and the adjacent sections 11 are connected together through installing connecting blocks 12 in the connecting grooves.
The working principle is as follows:
After the butterfly valve sealing ring is installed, the expansion screw 6 is screwed, the first stainless steel ring 4 is pressed towards the sealing ring pressing plate 2 by the screw thread of the expansion screw 6, meanwhile, the second stainless steel ring 5 is pressed towards the butterfly plate 14 in a propping mode, two clamping annular bands are formed on two sides of the grooved sealing ring 1, thick rubber on the inner diameter side of the grooved sealing ring 1 cannot pass through the clamping annular band spaces with narrow sides, and therefore the grooved sealing ring 1 is pulled, and falling of the grooved sealing ring is avoided.
It will be appreciated that the above detailed description of the utility model is provided for illustration of the utility model and not for limitation of the technical solutions described in the embodiments of the utility model, and that the person skilled in the art should understand that the utility model may be modified or substituted for the same technical effects; as long as the use requirement is met, the utility model is within the protection scope of the utility model.
Claims (4)
1. The utility model provides an anti-drop butterfly valve sealing washer, its characterized in that, including fluting sealing washer (1) and sealing washer clamp plate (2), set up E groove (3) on fluting sealing washer (1) be provided with first stainless steel ring (4) and second stainless steel ring (5) that can mutually support in E groove (3), be provided with the screw hole on first stainless steel ring (4), sealing washer clamp plate (2) with set up the through-hole simultaneously on fluting sealing washer (1), sealing washer clamp plate (2) with after fluting sealing washer (1) matees, the screw hole with the through-hole corresponds, is provided with expansion screw (6) from sealing washer clamp plate (2) outside pass the through-hole again with the screw hole cooperation, expansion screw (6) pass tip top behind first stainless steel ring (4) is in on second stainless steel ring (5), rethread locking nut (7) outside sealing washer clamp plate (2) will expansion screw (6), still set up on clamp plate (2) and install screw (14) and pass through seal plate (2) and install seal plate (14) on the clamp plate.
2. The anti-drop butterfly valve sealing ring according to claim 1, wherein a clamping protrusion (9) is arranged at the edge of the first stainless steel ring (4), a groove (10) is arranged at the edge of the second stainless steel ring (5), and the clamping protrusion (9) can be matched with the groove (10) so that the first stainless steel ring (4) and the second stainless steel ring (5) can only axially and relatively move.
3. The anti-drop butterfly valve sealing ring according to claim 1, wherein the first stainless steel ring (4) is L-shaped, the second stainless steel ring (5) is concave, the first stainless steel ring (4) and the second stainless steel ring (5) are combined together to form a structure matched with the E-shaped groove (3), and the concave surface of the second stainless steel ring (5) is embedded in the grooved sealing ring (1).
4. The anti-drop butterfly valve sealing ring according to claim 1, wherein the first stainless steel ring (4) and the second stainless steel ring (5) are formed by sequentially connecting a plurality of segments (11), adjacent segments (11) are matched and commonly provided with connecting grooves, and the adjacent segments (11) are connected together by installing connecting blocks (12) in the connecting grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322990326.0U CN221075280U (en) | 2023-11-07 | 2023-11-07 | Anti-drop butterfly valve sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322990326.0U CN221075280U (en) | 2023-11-07 | 2023-11-07 | Anti-drop butterfly valve sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221075280U true CN221075280U (en) | 2024-06-04 |
Family
ID=91265009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322990326.0U Active CN221075280U (en) | 2023-11-07 | 2023-11-07 | Anti-drop butterfly valve sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221075280U (en) |
-
2023
- 2023-11-07 CN CN202322990326.0U patent/CN221075280U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |