CN209707756U - A kind of outdoor communication optical cable with foamed insulation bed course - Google Patents
A kind of outdoor communication optical cable with foamed insulation bed course Download PDFInfo
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- CN209707756U CN209707756U CN201920387091.7U CN201920387091U CN209707756U CN 209707756 U CN209707756 U CN 209707756U CN 201920387091 U CN201920387091 U CN 201920387091U CN 209707756 U CN209707756 U CN 209707756U
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- bed course
- foamed insulation
- insulation bed
- optical cable
- belting layer
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Abstract
The utility model provides a kind of outdoor communication optical cable with foamed insulation bed course, and under the premise of meeting cable pulling force requirement, cost is small, product is light, insulation lightning protection, preferably in the aerial laying in multi-thunder area.It includes that the cross section that is arranged successively of ecto-entad is circular oversheath, belting layer, the center of the inner cavity of belting layer is the center reinforcemen that several path metal reinforcements and foamed insulation bed course are composed, several path metal reinforcements are located at the central area of foamed insulation bed course, it is spread in a manner of non-touching, the distance of the outer wall of foamed insulation bed course and the outer wall positioned at the path metal reinforcement of outermost radial outside is not less than the one third of foamed insulation bed course radius, the intertwist body that class annular housing inner ring is furnished with Loose tube is formed by between the foamed insulation bed course and the belting layer, the metal center reinforcer and foamed insulation bed course combine to form composite material center reinforcemen, the interior of the Loose tube intracavitary is provided with optical fiber and fiber paste.
Description
Technical field
The utility model relates to the technical field of cable configuration, specially a kind of outdoor communication light with foamed insulation bed course
Cable.
Background technique
With the popularity of the internet, Fibre Optical Communication Technology has become the main media of present information interaction.Due to number
The explosive growth of information, requirement of the market to properties of optical fiber cable are higher and higher.Existing conventional cable structure is as follows, from center to
It is followed successively by metal reinforcement, the PBT casing comprising optical fiber, glass fiber yarn, polyethylene outer sheath outside, for the waterproof for guaranteeing optical cable
Performance, the outer diameter of PBT casing has full-size limitation, and center reinforcemen need to be close to sleeve outer wall arrangement, so big in production
When core number optical cable, with increasing for casing, hollow size increases, and metal reinforcement size has been more than optical cable with increasing together
Required pulling tension requirements.Simultaneously as center reinforcemen is thicker, metal material dosage and weight are multiplied, and considerably increase light
The cost and weight of cable；In addition in the aerial laying in multi-thunder area, conductive metal easily meets with lightning stroke damage.
Summary of the invention
In view of the above-mentioned problems, the utility model provides a kind of outdoor communication optical cable with foamed insulation bed course, full
Under the premise of sufficient cable pulling force requires, cost is small, product is light, insulation lightning protection, preferably in the aerial laying in multi-thunder area.
A kind of outdoor communication optical cable with foamed insulation bed course, it is characterised in that: it includes what ecto-entad was arranged successively
Cross section is circular oversheath, belting layer, and the center of the inner cavity of the belting layer is several path metal reinforcements
The center reinforcemen being composed with foamed insulation bed course, several path metal reinforcements are located in foamed insulation bed course
Heart district domain is spread in a manner of non-touching, the outer wall of the foamed insulation bed course and the path metal positioned at outermost radial outside
The distance of the outer wall of reinforcer is not less than the one third of foamed insulation bed course radius, the foamed insulation bed course and the band
The intertwist body that class annular housing inner ring is furnished with Loose tube, the metal center reinforcer and foamed insulation pad are formed by between layer
Layer combination forms composite material center reinforcemen, and the interior of the Loose tube intracavitary is provided with optical fiber and fiber paste.
It is further characterized by:
The intertwist body further includes having gasket for packing, the filling out when quantity of the Loose tube is inadequate, by filling corresponding number
Rope is filled, so that Loose tube, gasket for packing combine to form corresponding intertwist body；
The radially inner side of the component part of the intertwist body is close to the corresponding position of the outer ring surface of the foamed insulation bed course
Arrangement, the radial outside of the component part of the intertwist body are close to the corresponding position arrangement of the inner ring surface of the belting layer；
The belting layer is specially glass fiber yarn；
The oversheath is specially polyethylene outer sheath；
The foamed insulation bed course is specially ethylene-vinyl acetate copolymer bed course.
After the utility model, in the case where meeting pulling tension requirements, several path metal reinforcements and foamed insulation
The center reinforcemen that bed course is composed, several path metal reinforcements be located at foamed insulation bed course central area, with
Non-touching mode is spread, the outer wall of the foamed insulation bed course and positioned at outermost radial outside path metal reinforcement it is outer
The distance of wall is not less than the one third of foamed insulation bed course radius, and several path metal reinforcements are located at foamed insulation
The central area of bed course is spread in a manner of non-touching, so that the strength range expanding surface domain of central area is big, it is ensured that pulling force
Reliability, foamed insulation bed course fills up in optical cable space, and to guarantee infiltration qualified, and reduces the usage amount of metal material, reduces
Optical cable cost；Using the composite material center reinforcemen of lighter in weight, optical cable weight is effectively reduced, reduces aerial laying
When self load bearing, widen span, reduce capital construction cost, while optical cable transportation cost can also be reduced；Insulating blanket makes cable core
In state of insulation, can greatly reduce by the risk of lightning stroke damage；Foamed material has certain flexibility compared to metal, can be with
More it is close to Loose tube outer wall, can has a certain upgrade to the infiltration of optical cable；Foamed material compares metal material friction
Power is stronger, keeps the structure of product more stable；To sum up, under the premise of meeting cable pulling force requirement, cost is small, product is light, insulation
Lightning protection, it is preferably in the aerial laying in multi-thunder area.
Detailed description of the invention
Fig. 1 is the cross-sectional cut-away structure schematic diagram of the utility model；
Title corresponding to serial number is as follows in figure:
Oversheath 1, path metal reinforcement 3, foamed insulation bed course 4, Loose tube 5, optical fiber 6, fiber paste 7, is filled out belting layer 2
Fill rope 8.
Specific embodiment
A kind of outdoor communication optical cable with foamed insulation bed course, is shown in Fig. 1: it includes the cross section that ecto-entad is arranged successively
For circular oversheath 1, belting layer 2, the center of the inner cavity of the belting layer 2 is several 3 Hes of path metal reinforcement
The center reinforcemen that foamed insulation bed course 4 is composed, several path metal reinforcements 3 are located at foamed insulation bed course 4
Central area is spread in a manner of non-touching, the outer wall of the foamed insulation bed course 4 and the path gold positioned at outermost radial outside
The distance for belonging to the outer wall of reinforcer 3 is not less than the one third of 4 radius of foamed insulation bed course, foamed insulation bed course 4 and belting layer 2
Between be formed by the intertwist body that class annular housing inner ring is furnished with Loose tube 5, metal center reinforcer 3 and foamed insulation bed course 4
Combination forms composite material center reinforcemen, and the interior of Loose tube 5 intracavitary is provided with optical fiber 6 and fiber paste 7.
Intertwist body further includes having gasket for packing 8, the gasket for packing 8 when the quantity of Loose tube 5 is inadequate, by filling corresponding number,
So that the combination of Loose tube 5, gasket for packing 8 forms corresponding intertwist body；
The radially inner side of the component part of intertwist body is close to the corresponding position arrangement of the outer ring surface of foamed insulation bed course 4, twists
The radial outside of fit component part is close to the corresponding position arrangement of the inner ring surface of belting layer 2；
Belting layer 2 is specially glass fiber yarn；
Oversheath 1 is specially polyethylene outer sheath；
Foamed insulation bed course 4 is specially ethylene-vinyl acetate copolymer bed course.
In specific embodiment, four Loose tubes 5 and a 8 ring cloth of gasket for packing are between foamed insulation bed course 4 and belting layer 2
It is formed by class annular housing, it is intracavitary in every Loose tube 5 to be provided with optical fiber 6 and fiber paste 7.
Its advantages are as follows: in the case where meeting pulling tension requirements, in the metal center reinforcer quilt of same cross-sectional area
Several path metal reinforcements are separated into, the center that several path metal reinforcements and foamed insulation bed course are composed is reinforced
Part, foamed insulation bed course fills up space in optical cable and guarantees infiltration qualification, and reduces the usage amount of metal material, reduced optical cable
Cost；
Using the composite material center reinforcemen of lighter in weight, optical cable weight is effectively reduced, is reduced when making somebody a mere figurehead laying
Self load bearing widens span, reduces capital construction cost, while can also reduce optical cable transportation cost；
Insulating blanket central area is provided with several path metal reinforcements, the outer wall of foamed insulation bed course and is located at radial
The distance of the outer wall of outermost path metal reinforcement is not less than the one third of foamed insulation bed course radius, is in cable core
State of insulation can greatly reduce by the risk of lightning stroke damage；
Foamed material has certain flexibility compared to metal, can more be close to Loose tube outer wall, prevent optical cable
Permeability performance has a certain upgrade；
Foamed material is stronger compared to metal material frictional force, keeps the structure of product more stable.
Specific embodiment of the utility model is described in detail above, but content is only what the utility model was created
Preferred embodiment should not be construed as limiting the practical range of the utility model creation.All create according to the utility model is applied
All the changes and improvements made by range etc., shall still fall within the scope of this patent.
Claims (6)
1. a kind of outdoor communication optical cable with foamed insulation bed course, it is characterised in that: it includes the cross that ecto-entad is arranged successively
Section is circular oversheath, belting layer, the center of the inner cavity of the belting layer be several path metal reinforcements and
The center reinforcemen that foamed insulation bed course is composed, several path metal reinforcements are located at the center of foamed insulation bed course
Region is spread in a manner of non-touching, and the outer wall of the foamed insulation bed course and the path metal positioned at outermost radial outside add
The distance of the outer wall of strong part is not less than the one third of foamed insulation bed course radius, the foamed insulation bed course and the belting layer
Between be formed by the intertwist body that class annular housing inner ring is furnished with Loose tube, the metal center reinforcer and foamed insulation bed course
Combination forms composite material center reinforcemen, and the interior of the Loose tube intracavitary is provided with optical fiber and fiber paste.
2. a kind of outdoor communication optical cable with foamed insulation bed course as described in claim 1, it is characterised in that: the intertwist body
It further include having gasket for packing, the gasket for packing when quantity of the Loose tube is inadequate, by filling corresponding number, so that Loose tube, filling out
It fills rope combination and forms corresponding intertwist body.
3. a kind of outdoor communication optical cable with foamed insulation bed course as claimed in claim 1 or 2, it is characterised in that: the strand
The radially inner side of fit component part is close to the corresponding position arrangement of the outer ring surface of the foamed insulation bed course, the intertwist body
Component part radial outside be close to the belting layer inner ring surface corresponding position arrangement.
4. a kind of outdoor communication optical cable with foamed insulation bed course as described in claim 1, it is characterised in that: the belting layer
Specially glass fiber yarn.
5. a kind of outdoor communication optical cable with foamed insulation bed course as described in claim 1, it is characterised in that: the oversheath
Specially polyethylene outer sheath.
6. a kind of outdoor communication optical cable with foamed insulation bed course as described in claim 1, it is characterised in that: the foaming is exhausted
Edge bed course is specially ethylene-vinyl acetate copolymer bed course.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920387091.7U CN209707756U (en) | 2019-03-26 | 2019-03-26 | A kind of outdoor communication optical cable with foamed insulation bed course |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920387091.7U CN209707756U (en) | 2019-03-26 | 2019-03-26 | A kind of outdoor communication optical cable with foamed insulation bed course |
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| CN209707756U true CN209707756U (en) | 2019-11-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114296196A (en) * | 2021-12-29 | 2022-04-08 | 通鼎互联信息股份有限公司 | Foaming filling method for optical cable |
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2019
- 2019-03-26 CN CN201920387091.7U patent/CN209707756U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114296196A (en) * | 2021-12-29 | 2022-04-08 | 通鼎互联信息股份有限公司 | Foaming filling method for optical cable |
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