CN108488380A - A kind of corrugated rubber seal of double hardness - Google Patents
A kind of corrugated rubber seal of double hardness Download PDFInfo
- Publication number
- CN108488380A CN108488380A CN201810392638.2A CN201810392638A CN108488380A CN 108488380 A CN108488380 A CN 108488380A CN 201810392638 A CN201810392638 A CN 201810392638A CN 108488380 A CN108488380 A CN 108488380A
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- China
- Prior art keywords
- seal
- straight
- rubber seal
- hardness
- tube shape
- Prior art date
- 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.)
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- 238000007789 sealing Methods 0.000 claims abstract description 48
- 238000010276 construction Methods 0.000 claims abstract description 14
- 210000003205 muscle Anatomy 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 238000013461 design Methods 0.000 claims description 9
- 238000007689 inspection Methods 0.000 abstract description 21
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 20
- 230000002708 enhancing effect Effects 0.000 description 9
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 4
- 229920006255 plastic film Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 241000233855 Orchidaceae Species 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000010092 rubber production Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003292 glue Substances 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
- 238000005457 optimization Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The present invention relates to a kind of rubber seal, it to be used for underground inspection shaft interface, and in particular to a kind of double corrugated rubber seal of hardness, including straight-tube shape sealing and the hard flange that is connect with straight-tube shape sealing one end.The straight-tube shape sealing uses low-hardness rubber material, the hard flange to use high durometer rubber material, not only ensure that the soft seal performance of sealing position, but also solve since flange is excessively soft, poor rigidity, yielding problem in construction；It solves and is increased using extra cost caused by steel ring enhancement method simultaneously, manufacture difficulty and the high problem of quality risk.The bellow seal ring of shallow corrugated shape is equipped on the inside of the straight-tube shape sealing can directly demould when in favor of being made of mould pressing method；Dnockout core need not be set, the structure of mold is enormously simplified, improve production efficiency, reduce the cost of mould development and production；It solves the problems, such as easily to tear existing for serrated seal muscle on the inside of sealing ring simultaneously, improves the security reliability of product.
Description
Technical field
The present invention relates to a kind of rubber seal, and in particular to a kind of double corrugated rubber seal of hardness are used for underground
Inspection shaft interface.
Background technology
Inspection shaft is the important infrastructure in city.The various pipes such as buried cable, draining, blowdown, water supply, gas supply and communication
Road is needed across the circle interface being arranged on concrete or plastic inspection well wall, with the facility or piping connection in inspection shaft.
To prevent water, soil and other pollutants outside inspection shaft from entering in inspection shaft, need in the interface for checking the borehole wall and insertion
Rubber seal is arranged in pipeline enclosure.
As Figure 7-8, rubber seal is usually cyclic structure, and one end is equipped with flange.In construction, by rubber seal
Circle push-in circle interface on the outside of the inspection shaft makes the flange of rubber seal one end be bonded with the outer wall of inspection shaft, then by plastics or
Metal tube is inserted by rubber seal in inspection shaft.
Existing rubber seal passes through the inner wall interference fit of its outer wall and inspection shaft interface and rubber seal
Inner wall and the interference fit being inserted between pipe outer wall realize sealing effect.Usual rubber seal makes the simple knot of smooth straight tube
Structure makes in order to the molding of rubber seal.The straight drum part and flange section of rubber seal are using identical type, identical
The rubber material of hardness makes.
Since the precision of inspection shaft, pipeline and rubber seal manufacture is not high, there is fluctuation in size, often lead to seal
It is ineffective.Generally use increases the thickness of rubber seal, and to ensure interference fit and sealing effect, but this be easy to cause
Interference fit is too tight, and pipeline is inserted into difficult problem.
The lower rubber production of rubber seal generally use hardness, therefore the hardness of flange is relatively low, rigidity is poor, and one
Denier is susceptible to the flange gross distortion of rubber seal one end there is a situation where being interference fitted tension, in pipeline insertion process,
And then entire rubber seal is caused to be squeezed into inspection shaft by pipeline.This considerably increases the difficulty of construction and installation, and construct
There is also potential risks for sealing effect afterwards.
The drawbacks of in order to solve the prior art, by changing the structure of rubber seal straight drum part, with optimization sealing effect
Fruit reduces the difficulty of construction assembling, while to flange section by the way of composite strengthening, to improve rigidity.
As shown in Fig. 9-11, by the way that broached-tooth design is arranged on the inner and outer wall of rubber seal, matched with reducing interference
Resultant realizes sealing effect only by serrated tip position and insertion tube and inspection shaft interface inner wall interference fit.This has
Reduce to effect the difficulty of construction and installation.
It is embedded in enhancing steel ring 7 in the flange of rubber seal to improve the rigidity of flange, enhancing steel ring 7 rises in flange
To the effect of skeleton, the rigidity of flange is substantially increased, preferably solves the problem on deformation occurred in construction.
But the enhancing steel ring 7 inlayed in the broached-tooth design and flange inside and outside rubber seal considerably increases
The complexity of rubber seal ring die structure and the manufacture difficulty of compression molding.
To improve sealing effect and reducing installation difficulty, the broached-tooth design inside and outside rubber seal be often made compared with
It is deep.In molding produces, inside broached-tooth design demoulding difficulty is big, often because the tearing of rubber material leads to high rejection rate, if
Dnockout core structure will be made in the sawtooth of die inside, then mould structure is complicated, and production efficiency reduces.
Additional process and production cost are not only increased in the enhancing steel ring 7 that the flange of rubber seal is embedded in, is also held
Easily occur the problem of enhancing 7 position offset of steel ring in production, influences the function of flange.Also, if to 7 surface of enhancing steel ring
The pretreatment such as derusting decontamination it is improper, rubber may be caused to be combined with enhancing steel ring 7 bad, finally the matter of influence rubber seal
Sealing effect after amount and construction and reliability.
Invention content
In order to overcome shown in Fig. 7-8, since the structure and rigidity of flange of rubber seal are too low, lead to installation
Difficult problem；And shown in Fig. 9-11, the mould structure complexity of rubber seal, low production efficiency, of high cost, rubber
For sealing ring there are potential crackle and flange Problem of Failure etc., the present invention provides a kind of rubber seal of the corrugated structure of double hardness
Circle design reduces mold and manufactures the difficulty of rubber seal, and improve flange position rubber under the premise of ensureing sealing effect
The hardness of glue, to meet rigidity requirement.
Technical solution is as follows used by the present invention solves above-mentioned technical problem：
A kind of corrugated rubber seal of double hardness, including straight-tube shape sealing and connect with straight-tube shape sealing one end
Hard flange 3；
Bellow seal ring 2 is equipped on the inside of the straight-tube shape sealing；The bellow seal ring 2 uses shallow corrugated shape, with
Conducive to manufacturing for the corrugated rubber seal ring die structure of the double hardness and product；
The straight-tube shape sealing uses low-hardness rubber material, to ensure the soft and good close of straight-tube shape sealing
Effect is sealed, the hard flange 3 uses high durometer rubber material, to ensure that hard flange 3 has higher hardness and rigidity.
Based on the above technical solution, the outside of the straight-tube shape sealing is equipped with serrated seal muscle 1.
Based on the above technical solution, the serrated seal muscle 1 is higher, to reach good sealing effect.
Based on the above technical solution, the quantity of the serrated seal muscle 1 and height are according to requirement of actual working condition
It is adjusted design.
Based on the above technical solution, the size and number of the bellow seal ring 2 according to specific construction operating mode,
It is adjusted with conduit types, structure and the size joined together by bellow seal ring 2, to ensure enough sealing number of turns, reaches
Good sealing effect.
Based on the above technical solution, the pipeline is straight tube or bellows.
Based on the above technical solution, the corrugated rubber seal of double hardness is made of mould pressing method.
Based on the above technical solution, the hardness and size of the hard flange 3 are according to construction operating mode and hard method
The pipe diameter of 3 cooperation of orchid is adjusted.
The advantageous effects of technical solution of the present invention are as follows：
1, the inside of straight-tube shape sealing position can directly be demoulded using shallow corrugated structure, and dnockout core need not be arranged, significantly
The structure of mold is simplified, production efficiency is improved, reduces the manufacturing cost of mold and sealing ring；It solves simultaneously on the inside of sealing ring
Problem is easily torn existing for serrated seal muscle, improves the security reliability of product.
2, it using the rubber production of two kinds of different hardness, not only ensure that the soft seal performance of sealing position, but also solved
Since flange is excessively soft, poor rigidity, the problem of being easily deformed in construction；It is solved simultaneously using additional caused by steel ring enhancement method
Cost increases, manufacture difficulty and the high problem of quality risk.
Description of the drawings
The present invention has following attached drawing：
The front view of Fig. 1 present invention；
The left view of Fig. 2 present invention；
A-A sectional views in Fig. 3 Fig. 1；
Fig. 4 dimensional structure diagrams of the present invention；
Fig. 5 plastic straighttubes of the present invention seal schematic diagram with inspection shaft Interference fit；
Fig. 6 plastic film capicitors of the present invention seal schematic diagram with inspection shaft Interference fit；
Fig. 7 General Purpose Rubber sealing ring front views in the prior art；
B-B sectional views in Fig. 8 Fig. 7；
Rubber seal front views of the Fig. 9 with broached-tooth design and enhancing steel ring；
C-C sectional views in Figure 10 Fig. 9；
Partial enlarged view at D in Figure 11 Figure 10.
Reference numeral：
1 serrated seal muscle, 2 bellow seal rings, 3 hard flange, 4 inspection shaft interface, 5 plastic straighttubes, 6 plastic ripples
Pipe, 7 enhancing steel rings
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings.
It is schematic structural view of the invention as shown in Figs 1-4.
A kind of corrugated rubber seal of double hardness, including straight-tube shape sealing and connect with straight-tube shape sealing one end
Hard flange 3；
Bellow seal ring 2 is equipped on the inside of the straight-tube shape sealing；The bellow seal ring 2 uses shallow corrugated shape, with
Conducive to manufacturing for the corrugated rubber seal ring die structure of the double hardness and product；
The straight-tube shape sealing uses low-hardness rubber material, to ensure the soft and good close of straight-tube shape sealing
Effect is sealed, the hard flange 3 uses high durometer rubber material, to ensure that hard flange 3 has higher hardness and rigidity.
Based on the above technical solution, the outside of the straight-tube shape sealing is equipped with serrated seal muscle 1.
Based on the above technical solution, the serrated seal muscle 1 is higher, to reach good sealing effect.
Based on the above technical solution, the quantity of the serrated seal muscle 1 and height are according to requirement of actual working condition
It is adjusted design.
Based on the above technical solution, the size and number of the bellow seal ring 2 according to specific construction operating mode,
It is adjusted with conduit types, structure and the size joined together by bellow seal ring 2, to ensure enough sealing number of turns, reaches
Good sealing effect.
Based on the above technical solution, the pipeline is straight tube or bellows.
Based on the above technical solution, the corrugated rubber seal of double hardness is made of mould pressing method.
Based on the above technical solution, the hardness and size of the hard flange 3 are according to construction operating mode and hard method
The pipe diameter of 3 cooperation of orchid is adjusted.
【Embodiment 1】
As shown in figure 5, and in conjunction with Fig. 3, when specification is inserted into inspection shaft interface 4 for the plastic straighttube 5 of DN200, annular seal
It is equipped with 3 serrated seal muscle 1 on the outside of position, inside sets that there are two bellow seal rings 2.The height of outside serrated seal muscle 3
Can be adjusted accordingly according to the outer diameter of plastic straighttube 5 and the internal diameter of inspection shaft interface 4, with obtain preferable interference fit with
The height of sealing effect, inside bellow seal ring 2 is shallower, in favor of being demoulded when manufacture.Sealing position uses same type with flange
The rubber of type but different hardness, flange hardness can be controlled in 80 degree of shore hardness or more, to obtain higher rigidity.
【Embodiment 2】
As shown in fig. 6, and combining Fig. 3 and Fig. 5 can when the plastic film capicitor 6 that specification is DN500 is inserted into inspection shaft interface 4
Increase the quantity of serrated seal muscle 3 on the outside of rubber seal to obtain more reliable sealing effect, and according to plastic film capicitor 6
Size adjusting on the inside of bellow seal ring 2 quantity to increase the number of turns of interference fit, improve sealing effect.The size of flange can
It is appropriate to increase, it prevents from being squeezed into inspection shaft interface 4 by plastic film capicitor 6 due to deformation.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention is defined by the claims.
The content not being described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (7)
1. a kind of corrugated rubber seal of double hardness, it is characterised in that：Including straight-tube shape sealing and with straight-tube shape sealing
The hard flange (3) of one end connection；
Bellow seal ring (2) is equipped on the inside of the straight-tube shape sealing；The bellow seal ring (2) uses shallow corrugated shape；
The straight-tube shape sealing uses low-hardness rubber material, the hard flange (3) to use high durometer rubber material.
2. the corrugated rubber seal of double hardness as described in claim 1, it is characterised in that：Outside the straight-tube shape sealing
Side is equipped with serrated seal muscle (1).
3. the corrugated rubber seal of double hardness as claimed in claim 2, it is characterised in that：The serrated seal muscle (1)
Quantity and height design is adjusted according to requirement of actual working condition.
4. the corrugated rubber seal of double hardness as described in claim 1, it is characterised in that：The bellow seal ring (2)
Size and number are adjusted according to specific construction operating mode, with conduit types, structure and the size joined together by bellow seal ring (2)
It is whole.
5. the corrugated rubber seal of double hardness as claimed in claim 4, it is characterised in that：The pipeline is straight tube or ripple
Pipe.
6. the corrugated rubber seal of double hardness as described in claim 1, it is characterised in that：The corrugated rubber of double hardness
Sealing ring is made of mould pressing method.
7. the corrugated rubber seal of double hardness as described in claim 1, it is characterised in that：The hard flange (3) it is hard
Degree and size are adjusted according to construction operating mode, the pipe diameter coordinated with hard flange (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810392638.2A CN108488380A (en) | 2018-04-27 | 2018-04-27 | A kind of corrugated rubber seal of double hardness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810392638.2A CN108488380A (en) | 2018-04-27 | 2018-04-27 | A kind of corrugated rubber seal of double hardness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108488380A true CN108488380A (en) | 2018-09-04 |
Family
ID=63313233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810392638.2A Pending CN108488380A (en) | 2018-04-27 | 2018-04-27 | A kind of corrugated rubber seal of double hardness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108488380A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281449A (en) * | 2019-08-08 | 2019-09-27 | 马鞍山宏力橡胶制品有限公司 | A kind of ductile iron pipe STD type interface anti-avulsion sealing ring and its production method |
| CN115814560A (en) * | 2022-11-30 | 2023-03-21 | 江苏润宇环境工程集团有限公司 | Strong-sealing leakage-proof oil gas recovery adsorption device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1421551A (en) * | 1964-11-05 | 1965-12-17 | Ct De Rech S De Pont A Mousson | Gasket for pipe joint and gasket including application |
| GB1203633A (en) * | 1967-04-05 | 1970-08-26 | D W & D Beaulieu Ltd | An improved sealing ring |
| US3913928A (en) * | 1973-05-09 | 1975-10-21 | Seiichi Yamaguchi | Resilient joint |
| EP0994287A1 (en) * | 1998-10-16 | 2000-04-19 | Artech Rubber B.V. | Composite sleeve-shaped sealing means |
| CN2502082Y (en) * | 2001-10-25 | 2002-07-24 | 陈文澜 | Flexible machinery mouthpiece composite rubber sealing ring |
| CN201635091U (en) * | 2010-04-02 | 2010-11-17 | 张应忠 | Sealing structure of plastic inspection well and spigot of dual-wall corrugated tube |
| WO2016102038A1 (en) * | 2014-12-23 | 2016-06-30 | Wedi Gmbh | Sealing insert for a water drain |
| CN208431369U (en) * | 2018-04-27 | 2019-01-25 | 北京洛科瀚科技有限公司 | A kind of corrugated rubber seal of double hardness |
-
2018
- 2018-04-27 CN CN201810392638.2A patent/CN108488380A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1421551A (en) * | 1964-11-05 | 1965-12-17 | Ct De Rech S De Pont A Mousson | Gasket for pipe joint and gasket including application |
| GB1203633A (en) * | 1967-04-05 | 1970-08-26 | D W & D Beaulieu Ltd | An improved sealing ring |
| US3913928A (en) * | 1973-05-09 | 1975-10-21 | Seiichi Yamaguchi | Resilient joint |
| EP0994287A1 (en) * | 1998-10-16 | 2000-04-19 | Artech Rubber B.V. | Composite sleeve-shaped sealing means |
| CN2502082Y (en) * | 2001-10-25 | 2002-07-24 | 陈文澜 | Flexible machinery mouthpiece composite rubber sealing ring |
| CN201635091U (en) * | 2010-04-02 | 2010-11-17 | 张应忠 | Sealing structure of plastic inspection well and spigot of dual-wall corrugated tube |
| WO2016102038A1 (en) * | 2014-12-23 | 2016-06-30 | Wedi Gmbh | Sealing insert for a water drain |
| CN208431369U (en) * | 2018-04-27 | 2019-01-25 | 北京洛科瀚科技有限公司 | A kind of corrugated rubber seal of double hardness |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281449A (en) * | 2019-08-08 | 2019-09-27 | 马鞍山宏力橡胶制品有限公司 | A kind of ductile iron pipe STD type interface anti-avulsion sealing ring and its production method |
| CN115814560A (en) * | 2022-11-30 | 2023-03-21 | 江苏润宇环境工程集团有限公司 | Strong-sealing leakage-proof oil gas recovery adsorption device |
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