CN208431369U - A kind of corrugated rubber seal of double hardness - Google Patents
A kind of corrugated rubber seal of double hardness Download PDFInfo
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- CN208431369U CN208431369U CN201820617246.7U CN201820617246U CN208431369U CN 208431369 U CN208431369 U CN 208431369U CN 201820617246 U CN201820617246 U CN 201820617246U CN 208431369 U CN208431369 U CN 208431369U
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- rubber seal
- tube shape
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Abstract
The utility model relates to a kind of rubber seal, are 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 being connect with straight-tube shape sealing one end.The straight-tube shape sealing uses low-hardness rubber material, and the hard flange uses 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, easily-deformable 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.It is equipped with the bellow seal ring of shallow corrugated shape on the inside of the straight-tube shape sealing, when in favor of using mould pressing method production, can directly demould；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 simultaneously tearable existing for serrated seal muscle on the inside of sealing ring, improves the security reliability of product.
Description
Technical field
The utility model 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 technique
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 and insertion for checking the borehole wall
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 is bonded the flange of rubber seal one end with the outer wall of inspection shaft, then by plastics or
Metal tube is inserted into inspection shaft by rubber seal.
Existing rubber seal passes through the inner wall interference fit of its outer wall and inspection shaft interface and rubber seal
Interference fit between inner wall and insertion pipe outer wall realizes sealing effect.Usual rubber seal is made into the simple knot of smooth straight tube
Structure, in order to which the molding of rubber seal makes.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.The thickness for increasing rubber seal is generallyd use, to guarantee interference fit and sealing effect, but this be easy to cause
It is interference fitted too tight, the difficult problem of pipeline insertion.
Rubber seal generallys use the lower rubber production of hardness, therefore the hardness of flange is relatively low, and rigidity is poor, and one
For denier there is a situation where being interference fitted tension, the flange that rubber seal one end is easy to appear in pipeline insertion process is severely deformed,
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 modifying 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.
Enhancing steel ring 7 is embedded in the flange of rubber seal to improve the rigidity of flange, and 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 production, inside broached-tooth design demoulding difficulty is big, often because the tearing of rubber material leads to high rejection rate, if
It will be made into dnockout core structure 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 positional shift of steel ring in production, influences the function of flange.Also, if to enhancing 7 surface of steel ring
The pretreatment such as derusting decontamination it is improper, may cause rubber and combined bad, the final matter of influence rubber seal with enhancing steel ring 7
Sealing effect and reliability after amount and construction.
Utility model 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 of rubber seal is complicated, production efficiency is low, at high cost, rubber
For sealing ring there are potential crackle and flange Problem of Failure etc., the utility model provides a kind of rubber of corrugated structure of double hardness
Sealing ring design reduces mold and manufactures the difficulty of rubber seal, and improve flange portion under the premise of guaranteeing sealing effect
The hardness of position rubber, to meet rigidity requirement.
It is as follows that the utility model solves technical solution used by above-mentioned technical problem:
A kind of corrugated rubber seal of double hardness is connect including straight-tube shape sealing and 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 guarantee the soft and good close of straight-tube shape sealing
Effect is sealed, the hard flange 3 uses high durometer rubber material, to guarantee the hardness with higher of hard flange 3 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 condition,
It is adjusted with conduit types joined together by bellow seal ring 2, structure and size, to ensure enough sealing ring numbers, 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 condition and hard method
The pipe diameter of 3 cooperation of orchid is adjusted.
The advantageous effects of technical solutions of the utility model 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 is solved on the inside of sealing ring simultaneously
Tearable problem 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
Increased costs, manufacture difficulty and the high problem of quality risk.
Detailed description of the invention
The utility model has following attached drawing:
The main view of Fig. 1 the utility model；
The left view of Fig. 2 the utility model；
A-A cross-sectional view in Fig. 3 Fig. 1；
Fig. 4 the utility model schematic perspective view；
Fig. 5 the utility model plastic straighttube and inspection shaft Interference fit seal schematic diagram；
Fig. 6 the utility model plastic film capicitor and inspection shaft Interference fit seal schematic diagram；
Fig. 7 General Purpose Rubber sealing ring main view in the prior art；
B-B cross-sectional view in Fig. 8 Fig. 7；
Rubber seal main view of the Fig. 9 with broached-tooth design and enhancing steel ring；
C-C cross-sectional view in Figure 10 Fig. 9；
Partial enlarged view at D in Figure 11 Figure 10.
Appended drawing reference:
1 serrated seal muscle, 2 bellow seal rings, 3 hard flange, 4 inspection shaft interface, 5 plastic straighttubes, 6 plastic film capicitors,
7 enhancing steel rings
Specific embodiment
The utility model is described in further details below in conjunction with attached drawing.
It is as shown in Figs 1-4 the utility model structure diagram.
A kind of corrugated rubber seal of double hardness is connect including straight-tube shape sealing and 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 guarantee the soft and good close of straight-tube shape sealing
Effect is sealed, the hard flange 3 uses high durometer rubber material, to guarantee the hardness with higher of hard flange 3 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 condition,
It is adjusted with conduit types joined together by bellow seal ring 2, structure and size, to ensure enough sealing ring numbers, 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 condition 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 demoulding when manufacture.Sealing position and flange use same type
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 circle number 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 due to deformation by plastic film capicitor 6.
Embodiment of above is merely to illustrate the utility model, and is not limitation of the utility model, related technology neck
The those of ordinary skill in domain, in the case where not departing from the spirit and scope of the utility model, can also make a variety of changes and
Modification, therefore all equivalent technical solutions also belong to the scope of the utility model, the scope of patent protection of the utility model by
Claim limits.
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) are 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, and the hard flange (3) uses 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 condition, with conduit types, structure and 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: double corrugated rubber of hardness
Sealing ring is made of mould pressing method.
7. the corrugated rubber seal of hardness as described in claim 1 double, it is characterised in that: the hard flange (3) it is hard
Degree and size are adjusted according to construction operating condition, the pipe diameter cooperated with hard flange (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820617246.7U CN208431369U (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 |
|---|---|---|---|
| CN201820617246.7U CN208431369U (en) | 2018-04-27 | 2018-04-27 | A kind of corrugated rubber seal of double hardness |
Publications (1)
| Publication Number | Publication Date |
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| CN208431369U true CN208431369U (en) | 2019-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820617246.7U Active CN208431369U (en) | 2018-04-27 | 2018-04-27 | A kind of corrugated rubber seal of double hardness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488380A (en) * | 2018-04-27 | 2018-09-04 | 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 CN201820617246.7U patent/CN208431369U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488380A (en) * | 2018-04-27 | 2018-09-04 | 北京洛科瀚科技有限公司 | A kind of corrugated rubber seal of double hardness |
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