CN211852839U - Flap valve sealing strip structure - Google Patents
Flap valve sealing strip structure Download PDFInfo
- Publication number
- CN211852839U CN211852839U CN202020341196.1U CN202020341196U CN211852839U CN 211852839 U CN211852839 U CN 211852839U CN 202020341196 U CN202020341196 U CN 202020341196U CN 211852839 U CN211852839 U CN 211852839U
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- China
- Prior art keywords
- flap valve
- sealing ring
- sealing strip
- sealing
- strip structure
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 110
- 230000003075 superhydrophobic effect Effects 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 26
- 239000011229 interlayer Substances 0.000 claims description 13
- 239000002052 molecular layer Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 7
- 238000001125 extrusion Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 229910001338 liquidmetal Inorganic materials 0.000 description 4
- 230000002285 radioactive effect Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003921 oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model discloses a flap valve sealing strip structure, which comprises an annular sealing ring and a side skirt, wherein a positioning mounting hole is formed on the sealing ring, air bubbles are arranged inside the sealing ring, and the side skirt which is annular and has the same inner diameter as the sealing ring is arranged below the sealing ring; the sealing washer includes super hydrophobic nanometer layer, super hydrophobic nanometer layer covers in rubber main part layer top, rubber main part layer below is provided with the skid resistant course, this kind of flap valve sealing strip structure, and deformability is good, and the bolt extrusion that can provide when the installation is automatic warp down, covers at the upper surface and the inner wall of flap valve to improve the leakproofness of flap valve, simultaneously the utility model discloses a sealing strip coefficient of stiction is big, can guarantee the stability between sealing strip and the flap valve, avoids the sealing strip to slide and leads to revealing.
Description
Technical Field
The utility model relates to a flap valve field specifically is a flap valve sealing strip structure.
Background
A butterfly valve, also called a flap valve, is a regulating valve with a simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing part (a valve clack or a butterfly plate) which is a disc and rotates around a valve shaft to open and close. The pipe mainly plays a role in cutting off and throttling.
When the flap valve is used in the installation, the flap valve and the flap valve sealing strip are installed in a matched mode generally, so that the sealing performance of the flap valve is guaranteed, various types of fluid such as air, water, steam, various corrosive media, slurry, oil, liquid metal and radioactive media are prevented from leaking, the conveying safety and the conveying efficiency are guaranteed, the flap valve is mature in technology at present, the structure of the flap valve sealing strip is still simple, the flap valve and the flap valve sealing strip are installed insecurely, gaps exist, and relative sliding is easy to occur between the flap valve and the flap valve sealing strip.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flap valve sealing strip structure to current flap valve sealing strip structure still is comparatively simple on the existing market that proposes in solving above-mentioned background art, and appears gap and relative slip's problem easily between flap valve and the flap valve sealing strip that leads to.
The technical scheme of the utility model is realized like this: a flap valve sealing strip structure comprises an annular sealing ring and a side skirt, wherein a positioning mounting hole is formed in the sealing ring, air bubbles are arranged in the sealing ring, and the side skirt which is annular and has the same inner diameter as the sealing ring is arranged below the sealing ring;
the sealing ring comprises a super-hydrophobic nano layer, the super-hydrophobic nano layer covers the rubber main body layer, and an anti-skid layer is arranged below the rubber main body layer;
the side skirt comprises a skirt plate main body, an elastic interlayer is arranged outside the skirt plate main body, and leakproof sealing grains are formed on the outer wall of the elastic interlayer.
Preferably, the linear distance between the central point of the positioning mounting hole and the inner wall of the sealing ring is half of the linear distance between the central point of the positioning mounting hole and the outer wall of the sealing ring.
Preferably, the inner wall of the positioning and mounting hole is formed with threads.
Preferably, the sealing ring and the side skirt are integrally formed.
Preferably, the superhydrophobic nano-layer is fixedly connected with the rubber main body layer, and the rubber main body layer and the anti-slip layer are integrally formed.
Preferably, the anti-slip layer is a high friction coefficient rubber composite material.
Preferably, the apron board main body and the elastic interlayer are integrally molded, and the leakage-proof sealing grains are fixed on the surface of the elastic interlayer.
The working principle is as follows: covering a sealing ring on the flap valve, keeping the center of a circle of the sealing ring coincident with the center of a circle of the flap valve, arranging a side skirt inside the flap valve, abutting leakproof sealing lines on the inner wall of the flap valve, installing the flap valve on a pipeline, arranging a side skirt between the inner wall of the flap valve and the pipeline, installing a fixing bolt on a positioning installation hole, fixing the sealing strip on the flap valve through the matching of the positioning installation hole and the fixing bolt, compressing air bubbles in the sealing ring under the extrusion action of a bolt, deforming the sealing ring, thinning the sealing ring, wrapping the sealing ring on the upper surface of the flap valve under the combined action of deformation and elasticity of the sealing ring, improving the sealing property between the flap valve and the sealing strip, improving the static friction force between the sealing ring and the flap valve by an antiskid layer, and avoiding relative sliding between the sealing ring and the flap valve under external action force, meanwhile, the side skirt is extruded by the inner wall of the flap valve and the pipeline, and multiple sealing and isolating effects are provided between the inner wall of the flap valve and the pipeline through the anti-leakage sealing lines, so that various types of fluid such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like are prevented from being leaked, and the safety is improved.
By adopting the technical scheme, the beneficial effects of the utility model are that:
this kind of flap valve sealing strip structure, deformability is good, can be when the bolt extrusion effect that the installation provided under automatic deformation, cover at the upper surface and the inner wall of flap valve to improve the leakproofness of flap valve, simultaneously the utility model discloses a sealing strip coefficient of static friction is big, can guarantee the stability between sealing strip and the flap valve, avoids the sealing strip to slide and leads to revealing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a bottom view of the present invention;
fig. 2 is a sectional view in a head-up state according to the present invention;
fig. 3 is a cross-sectional view of a seal ring of the present invention;
fig. 4 is a cross-sectional view of a side skirt of the present invention.
Wherein: 1. a seal ring; 2. positioning the mounting hole; 3. a side skirt; 4. air bubbles; 101. a superhydrophobic nanolayer; 102. a rubber body layer; 103. an anti-slip layer; 301. a skirt board main body; 302. an elastic interlayer; 303. and (5) leakage-proof sealing lines.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-4, the sealing strip structure of the flap valve comprises an annular sealing ring 1 and a side skirt 3, wherein a positioning mounting hole 2 is formed in the sealing ring 1, an air bubble 4 is arranged inside the sealing ring 1, and the side skirt 3 which is annular and has the same inner diameter as the sealing ring 1 is arranged below the sealing ring 1;
the sealing ring 1 comprises a super-hydrophobic nano layer 101, wherein the super-hydrophobic nano layer 101 covers the rubber main body layer 102, and an anti-skid layer 103 is arranged below the rubber main body layer 102;
the side skirt 3 comprises a skirt board main body 301, an elastic interlayer 302 is arranged outside the skirt board main body 301, and leakproof seal lines 303 are formed on the outer wall of the elastic interlayer 302.
Specifically, the straight-line distance between the central point of the positioning mounting hole 2 and the inner wall of the sealing ring 1 is half of the straight-line distance between the central point of the positioning mounting hole 2 and the outer wall of the sealing ring 1, and the distance between the positioning mounting holes 2 at the symmetrical positions on the sealing ring 1 can be reduced by setting the straight-line distance, so that the moment of stress given by the flap valve on the sealing ring 1 is reduced, and the service life of the sealing ring 1 is prolonged.
Specifically, the inner wall of the positioning mounting hole 2 is formed with threads, so that the sealing ring 1 is fixedly mounted on the flap valve through the matching of the bolt and the positioning mounting hole 2.
Specifically, sealing washer 1 and side skirt 3 integrated into one piece set up like this and can guarantee the joint strength between sealing washer 1 and the side skirt 3, avoid sealing washer 1 and side skirt 3 fracture under the extrusion between flap valve and pipeline to the life of this sealing strip has been improved.
Specifically, super-hydrophobic nano layer 101 and rubber main body layer 102 fixed connection, rubber main body layer 102 and skid resistant course 103 integrated into one piece set up like this and can provide the guard action of putting the greasy dirt for rubber main body layer 102 through super-hydrophobic nano layer 101, avoid the greasy dirt to corrode, pollute rubber main body layer 102, and skid resistant course 103 is in between sealing washer 1 and the flap valve, can improve the static friction force between sealing washer 1 and the flap valve to avoid taking place relative slip between sealing washer 1 and the flap valve, improve sealed effect.
Specifically, the anti-slip layer 103 is a high friction coefficient rubber composite material.
Specifically, the apron board main body 301 and the elastic interlayer 302 are integrally formed, the leakage-proof sealing lines 303 are fixed on the surface of the elastic interlayer 302, so that multiple sealing and isolating effects can be provided between the inner wall of the flap valve and a pipeline through the leakage-proof sealing lines 303, leakage of various types of fluids such as air, water, steam, various corrosive media, slurry, oil, liquid metal and radioactive media is avoided, and safety is improved.
The working principle is as follows: covering a sealing ring 1 on the flap valve, keeping the center of a circle of the sealing ring 1 coincident with the center of the circle of the flap valve, positioning a side skirt 3 inside the flap valve, abutting a leakage-proof sealing line 303 on the inner wall of the flap valve, installing the flap valve on a pipeline, positioning the side skirt 3 between the inner wall of the flap valve and the pipeline, installing a fixing bolt on a positioning installation hole 2, fixing the sealing strip on the flap valve through the cooperation of the positioning installation hole 2 and the fixing bolt, compressing air bubbles 4 in the sealing ring 1 under the extrusion action of a bolt, deforming the sealing ring 1, thinning the sealing ring 1, wrapping the sealing ring 1 on the upper surface of the flap valve under the combined action of deformation and elasticity of the sealing ring 1, improving the sealing performance between the flap valve and the sealing strip, improving the static friction force between the sealing ring 1 and the flap valve by an anti-slip layer 103, and avoiding relative sliding between the sealing ring 1 and the flap valve under external acting force, meanwhile, the side skirt 3 is extruded by the inner wall of the flap valve and the pipeline, and multiple sealing and isolating effects are provided between the inner wall of the flap valve and the pipeline through the anti-leakage sealing lines 303, so that leakage of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like is avoided, and the safety is improved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a flap valve sealing strip structure which characterized in that includes: the sealing ring comprises an annular sealing ring (1) and side skirt (3), wherein a positioning mounting hole (2) is formed in the sealing ring (1), an air bubble (4) is arranged in the sealing ring (1), and the side skirt (3) which is annular and has the same inner diameter as the sealing ring (1) is arranged below the sealing ring (1);
the sealing ring (1) comprises a super-hydrophobic nano layer (101), the super-hydrophobic nano layer (101) covers the rubber main body layer (102), and an anti-skid layer (103) is arranged below the rubber main body layer (102);
the side skirt (3) comprises a skirt body (301), an elastic interlayer (302) is arranged outside the skirt body (301), and leakproof seal grains (303) are formed on the outer wall of the elastic interlayer (302).
2. The flap valve sealing strip structure according to claim 1, characterized in that: the straight line distance between the central point of the positioning mounting hole (2) and the inner wall of the sealing ring (1) is half of the straight line distance between the central point of the positioning mounting hole (2) and the outer wall of the sealing ring (1).
3. The flap valve sealing strip structure according to claim 1, characterized in that: and threads are formed on the inner wall of the positioning mounting hole (2).
4. The flap valve sealing strip structure according to claim 1, characterized in that: the sealing ring (1) and the side skirt (3) are integrally formed.
5. The flap valve sealing strip structure according to claim 1, characterized in that: the super-hydrophobic nano layer (101) is fixedly connected with the rubber main body layer (102), and the rubber main body layer (102) and the anti-slip layer (103) are integrally formed.
6. The flap valve sealing strip structure according to claim 1, characterized in that: the anti-skid layer (103) is made of a high-friction-coefficient rubber composite material.
7. The flap valve sealing strip structure according to claim 1, characterized in that: the apron body (301) and the elastic interlayer (302) are integrally molded, and the leakage-proof sealing grains (303) are fixed on the surface of the elastic interlayer (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020341196.1U CN211852839U (en) | 2020-03-18 | 2020-03-18 | Flap valve sealing strip structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020341196.1U CN211852839U (en) | 2020-03-18 | 2020-03-18 | Flap valve sealing strip structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211852839U true CN211852839U (en) | 2020-11-03 |
Family
ID=73134332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020341196.1U Expired - Fee Related CN211852839U (en) | 2020-03-18 | 2020-03-18 | Flap valve sealing strip structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211852839U (en) |
-
2020
- 2020-03-18 CN CN202020341196.1U patent/CN211852839U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201103 |