CN207010150U - A kind of diameter adjustable sealing structure of cable penetration or poling - Google Patents
A kind of diameter adjustable sealing structure of cable penetration or poling Download PDFInfo
- Publication number
- CN207010150U CN207010150U CN201720794975.5U CN201720794975U CN207010150U CN 207010150 U CN207010150 U CN 207010150U CN 201720794975 U CN201720794975 U CN 201720794975U CN 207010150 U CN207010150 U CN 207010150U
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- cable
- seal layer
- flexible seal
- cover flange
- poling
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Abstract
The utility model discloses the diameter adjustable sealing structure of a kind of cable penetration or poling, mounting hole is offered on the installation body, pedestal sleeve pipe is fixed with the mounting hole, a flexible seal layer is fixed with the pedestal sleeve pipe, cable is located in the center through hole of the flexible seal layer, the interior outer face of the flexible seal layer is respectively fixed with upper press cover flange and lower cover flange, the upper press cover flange is pressed on the outer face of the pedestal sleeve pipe, and the upper press cover flange, flexible seal layer and lower cover flange are fixed as one by a connecting rod；Flexible seal layer is flexible material, solve because existing plugging material and cable and wall coil can not cable caused by tight seal soak for a long time brought cable breakdown accident；Also reserved for following dilatation, reduce upgrade maintenance and unconscious construction problem, safeguarded for installation and debugging and bring great convenience.
Description
Technical field
Field of electrical equipment is the utility model is related to, is related to the through walls or poling laying of cable, more particularly to a kind of cable
Through walls or poling diameter adjustable sealing structure.
Background technology
With the progress of expanding economy and the progress of technology, and urban network reconstruction engineering, power cable replaces frame
Ceases to be busy road turns into a kind of trend, is particularly insulated with crosslinked polyethylene (XLPE) for the polymer insulation power cable of representative,
Have the advantages that good insulation preformance, transmission capacity be big, annex makes simple, portable construction, do not limited by height fall, occupy
The absolute predominance status in cable application field.The laying of XLPE cable is to use the modes such as direct-burried, poling, through walls or tunnel mostly,
And cable seal is carried out at cable penetration and poling, at present, what the country used is that stifled mudding is blocked up or do not taken close mostly
Envelope.
Stifled mudding blocks up this sealing means and corrosion cable be present, is not suitable with outdoor moist, extremely cold very hot working environment
Problem, easily there is phenomena such as permeability when coating decortication, damp failure and high temperature；And then cause cable long period of soaking in water
In, cause cable jacket insulating barrier to corrode, insulating properties failure, in the case where exchanging electro ultrafiltration, cable metallic screens form circulation,
Cause electric cable heating to accelerate insulation ag(e)ing, ultimately result in cable breakdown accident, have impact on the powered stable of whole power network, more have very
Person, personal safety accident may be caused；Such as block sealing and do not have effect, or even have toy and crawl into cable and switch connection
Storehouse, the power outage such as short circuit or tripping operation is easily caused, the bad generation that can cause various security incidents is sealed, has a strong impact on power network
Safety and use.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model, which provides one kind, will not corrode cable, oil resistant antiknock
It is anti-mildew, improve the cable penetration of cable reliability of operation or the diameter adjustable sealing structure of poling.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of diameter adjustable sealing structure of cable penetration or poling, including installation body, described install open up on body
There is mounting hole, pedestal sleeve pipe is fixed with the mounting hole, is fixed with a flexible seal layer in the pedestal sleeve pipe, cable is worn
In the center through hole of the flexible seal layer, the interior outer face of the flexible seal layer is respectively fixed with upper press cover flange with
Gland flange, the upper press cover flange are pressed on the outer face of the pedestal sleeve pipe, the upper press cover flange, flexible seal layer
It is fixed as one with lower cover flange by a connecting rod.
As the further improvement of such scheme, the flexible seal layer is that can vulcanize ethylene-propylene-diene monomer rubber ring.
As the further improvement of such scheme, the ethylene-propylene-diene monomer rubber ring that vulcanizes is followed successively by sealing block from outside to inside
With tack sheet rubber.
As the further improvement of such scheme, the connecting rod is screw rod.
The beneficial effects of the utility model：
The diameter adjustable sealing structure of a kind of cable penetration of the utility model or poling, it is close using pedestal sleeve pipe fixing flexible
Sealing, flexible seal layer are closely set on cable and sealed, and flexible seal layer is tied with cable and pedestal sleeve into close
Close, solve because existing plugging material and cable and wall coil can not cable caused by tight seal soak for a long time brought cable
Breakdown accident；Flexible seal layer is flexible material, is conveniently replaced, and is also reserved for following dilatation, reduces applying for upgrade maintenance
Work problem, safeguarded for installation and debugging and bring great convenience；And flexible seal layer will not corrode cable, cable fortune is improved
Capable reliability；Whole encapsulating method is simple and convenient, breaches the technical bottleneck of cable penetration and poling sealing reliability, meets
The field fabrication of cable penetration and poling Seal, safeguard to move and change demand.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described.Obviously, described accompanying drawing is part of the embodiment of the present utility model, rather than entirely
Portion's embodiment, those skilled in the art on the premise of not paying creative work, can also obtain according to these accompanying drawings
Other designs and accompanying drawing：
Fig. 1 is the utility model preferred embodiment structure half-section diagram；
Fig. 2 is the utility model preferred embodiment structure top view；
Fig. 3 is the utility model preferred embodiment structure upward view.
Embodiment
Design, concrete structure and caused technique effect of the present utility model are carried out below with reference to embodiment and accompanying drawing
Clearly and completely describe, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is part of the embodiment of the present utility model, rather than whole embodiments, based on embodiment of the present utility model, the skill of this area
The other embodiment that art personnel are obtained on the premise of not paying creative work, belong to the model of the utility model protection
Enclose.
Referring to figs. 1 to Fig. 3, a kind of diameter adjustable sealing structure of cable penetration or poling, including installation body 1, it is described
Mounting hole is offered on installation body 1, pedestal sleeve pipe 2 is fixed with the mounting hole, it is soft to be fixed with one in the pedestal sleeve pipe 2
Property sealant 3, completely cut off flexible seal layer 3 and installation body 1 using pedestal sleeve pipe 2, only need to change flexible seal layer 3 i.e. during replacing
Can, it is not necessary to drilling or mounting seat on installation body 1 again, reduce installation steps.
Cable 4 is located in the center through hole of the flexible seal layer 3, the interior outer face difference of the flexible seal layer 3
Upper press cover flange 5 and lower cover flange 6 are fixed with, the outer face that the upper press cover flange 5 is pressed on the pedestal sleeve pipe 2 is enterprising
Spacing, the sealing that the upper press cover flange 5, flexible seal layer 3 and lower cover flange 6 are fixed as one by a connecting rod 7 of row
Module, the connecting rod 7 are screw rod.
Flexible seal layer 3 is closely set on cable 4 and sealed, flexible seal layer 3 and cable 4 and the shape of pedestal sleeve pipe 2
Into combining closely, solve because existing plugging material and cable 4 and wall coil cable can not soak for a long time caused by tight seal
Brought cable breakdown accident, improve reliability when cable 4 is run.
The flexible seal layer 3 is can vulcanize ethylene-propylene-diene monomer rubber ring, and the ethylene-propylene-diene monomer rubber ring that vulcanizes is by outside extremely
Inside it is followed successively by sealing block 31 and tack sheet rubber 32.The ethylene propylene diene rubber performance requirement that vulcanizes is：15.1-
Hardness (JISA), the 25-35% compression of 20.8Mpa tensile strength, 310-420% elongation at break, 62-90 forever becomes
Shape (100 DEG C of * 22h), 178h resistance to ozone aging (50pphm, 50 DEG C), 36-45 Mooney viscosity ML1+4 (100gradeC) and
Low water absorption.Flexible seal layer 3 is flexible material, is conveniently replaced, and is also reserved for following dilatation, reduces applying for upgrade maintenance
Work problem, safeguarded for installation and debugging and bring great convenience；And flexible seal layer 3 will not corrode cable, improve cable
The security performance of operation.
The encapsulating method of the sealing structure, comprises the following steps,
A) being dug on wall or body has mounting hole, fixed in mounting hole to load pedestal sleeve pipe 2, will using binding agent
Gap between pedestal sleeve pipe 2 and wall or body is filled up so that pedestal pipe sleeve 2 is tightly fastened with installation body 1 and is integrated.Bond
Cement concrete, or other kinds binding agent can be selected in agent.
B) cable 4 is passed through into lower cover flange 6, the tack sheet rubber 32 of the inner side of flexible seal layer 3 successively removed, directly
Annular diameters to flexible seal layer 3 are identical with the external diameter of cable 4, and flexible seal layer 3 can be closely fastened on outside cable 4, flexible close
Sealing 3 is set in outside cable 4, and gland flange 5 is installed in the upper end of flexible seal layer 3, using connecting rod 7 by upper press cover flange
5th, flexible seal layer 3 and lower cover flange 6 are fixed so that cable 4, upper press cover flange 5, flexible seal layer 3 and lower cover flange 6
It is connected to the seal modules of integral type；
C) lubricant is uniformly coated with the outer peripheral face of flexible seal layer 3, seal modules is pushed into pedestal sleeve pipe 1, when
Stop being pushed into when the outer face of upper press cover flange 5 and pedestal sleeve pipe 2 compresses；
D) connecting rod 7 is synchronously tightened using workpiece is symmetrical, compressed flexible sealant 3 makes its expansion, until flexible close
The surfaces externally and internally of sealing 3 is brought into close contact with cable 4 and pedestal sleeve pipe 2 respectively.Symmetrically synchronously tighten so that flexible seal layer 3 expands
More uniformly, the space between flexible seal layer 3 and cable 4 is reduced so that be bonded even closer.
Encapsulating method is easy to operate, and manufactured diameter adjustable seal modules form close knot with cable 4 and installation body 1
Close, breach the technical bottleneck of cable penetration and poling sealing reliability, meet showing for cable penetration and poling Seal
Field is made, maintenance is moved and changes demand.
Above is preferred embodiment of the present utility model is illustrated, but the utility model is created and is not limited to
The embodiment, those skilled in the art can also make a variety of etc. on the premise of without prejudice to the utility model spirit
With modification or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (4)
1. the diameter adjustable sealing structure of a kind of cable penetration or poling, including installation body, described install offer on body
Mounting hole, it is characterised in that：Pedestal sleeve pipe is fixed with the mounting hole, a flexible sealing is fixed with the pedestal sleeve pipe
Layer, cable are located in the center through hole of the flexible seal layer, and the interior outer face of the flexible seal layer is respectively fixed with
Gland flange and lower cover flange, the upper press cover flange are pressed on the outer face of the pedestal sleeve pipe, the upper press cover method
Blue, flexible seal layer and lower cover flange are fixed as one by a connecting rod.
2. the diameter adjustable sealing structure of cable penetration according to claim 1 or poling, it is characterised in that：The flexibility
Sealant is that can vulcanize ethylene-propylene-diene monomer rubber ring.
3. the diameter adjustable sealing structure of cable penetration according to claim 2 or poling, it is characterised in that：It is described can sulphur
Change ethylene-propylene-diene monomer rubber ring and be followed successively by sealing block and tack sheet rubber from outside to inside.
4. the diameter adjustable sealing structure of cable penetration according to claim 1 or poling, it is characterised in that：The connection
Bar is screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720794975.5U CN207010150U (en) | 2017-06-30 | 2017-06-30 | A kind of diameter adjustable sealing structure of cable penetration or poling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720794975.5U CN207010150U (en) | 2017-06-30 | 2017-06-30 | A kind of diameter adjustable sealing structure of cable penetration or poling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207010150U true CN207010150U (en) | 2018-02-13 |
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ID=61452001
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720794975.5U Active CN207010150U (en) | 2017-06-30 | 2017-06-30 | A kind of diameter adjustable sealing structure of cable penetration or poling |
Country Status (1)
| Country | Link |
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| CN (1) | CN207010150U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196255A (en) * | 2017-06-30 | 2017-09-22 | 长园电力技术有限公司 | The diameter adjustable sealing structure and its encapsulating method of a kind of cable penetration or poling |
-
2017
- 2017-06-30 CN CN201720794975.5U patent/CN207010150U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196255A (en) * | 2017-06-30 | 2017-09-22 | 长园电力技术有限公司 | The diameter adjustable sealing structure and its encapsulating method of a kind of cable penetration or poling |
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