CN208076780U - A kind of low-density light communication optical cable - Google Patents
A kind of low-density light communication optical cable Download PDFInfo
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- CN208076780U CN208076780U CN201820232801.4U CN201820232801U CN208076780U CN 208076780 U CN208076780 U CN 208076780U CN 201820232801 U CN201820232801 U CN 201820232801U CN 208076780 U CN208076780 U CN 208076780U
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Abstract
The utility model discloses a kind of low-density light communication optical cables, it includes center reinforcemen, colored optical fiber unit, inner sheath, aramid fiber and oversheath successively from inside to outside, it is twisted outside center reinforcemen to have foaming packing gasket and colored optical fiber unit, foaming packing gasket and colored optical fiber unit surrounding are filled with water-blocking filling paste, colored optical fiber unit includes more colored optical fibers, thixotropy fiber paste and PBT Loose tubes, and more colored optical fibers, thixotropy fiber paste are filled in PBT Loose tubes.A kind of low-density light communication optical cable can reduce the weight of finished cable since density is small light-weight, save transportation cost, be easily installed construction, and do not absorb the moisture in optical cable paste, it is ensured that transmission performance prolongs the service life.The product weight is light, and density is low, and toughness is strong, environment friendly and pollution-free.
Description
Technical field
The present invention relates to a kind of low-density light communication optical cables.
Background technology
Communications optical cable is the important transmission line in internet, leads to since the circuit requirements that optical fiber transmission has form multiloop more
The transmission in road, so optical cable is designed to layer-stranding cable structure to meet the requirements according to requirements above, cable configuration is by more beams
Pipe and gasket for packing are twisted centered on strengthening core according to fiber number at many levels, and optical cable leaks outer layer in order to prevent after being twisted
Water is full of waterproofing unction between oversheath and beam tube, so common gasket for packing uses calcium carbonate as filler, easily absorbs optical cable
Moisture in cable cream, causes greasy for preventing water to break up, and does not have resistance effect, and optical cable is caused to seep water for a long time in external junction portion,
Signal transmission is influenced after installing and using, and shortens optical cable service life.And calcium carbonate master batch is not easy to disperse, mobile performance is bad,
It is of high cost in production, there is certain pollution to environment.
Accordingly, it is desirable to provide a kind of new technical solution solves the above problems.
Invention content
The technical problem to be solved in the present invention is to provide a kind of low-density light communication optical cables.
In order to solve the above technical problems, a kind of low-density light communication optical cable of the present invention, it includes successively from inside to outside
Center reinforcemen, colored optical fiber unit, inner sheath, aramid fiber and oversheath, the center reinforcemen is twisted outside foaming packing gasket
With colored optical fiber unit, the foaming packing gasket and colored optical fiber unit surrounding are filled with water-blocking filling paste, the colored optical fiber
Unit includes more colored optical fibers, thixotropy fiber paste and PBT Loose tubes, and more colored optical fibers, thixotropy fiber paste are filled in PBT pines
In casing.
The inner sheath is polyethylene inner sheath.
The oversheath is pe sheath or anti-electric-mark sheath.
Beneficial effects of the present invention：Foaming packing gasket can reduce the weight of finished cable since density is small light-weight, section
About transportation cost is easily installed construction, and does not absorb the moisture in optical cable paste, it is ensured that transmission performance prolongs the service life.
The product weight is light, and density is low, and toughness is strong, environment friendly and pollution-free.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Wherein：1, water-blocking filling paste, 2, foaming packing gasket, 3, center reinforcemen, 4, aramid fiber, 5, oversheath, 6, inner sheath,
7, colored optical fiber, 8, PBT Loose tubes, 9, thixotropy fiber paste.
Specific implementation mode
In order to deepen the understanding of the present invention, below in conjunction with embodiment and attached drawing, the invention will be further described, should
Embodiment is only used for explaining the present invention, does not restrict the protection scope of the present invention.
As shown in Figure 1, a kind of low-density light communication optical cable of the present invention, it includes center reinforcemen successively from inside to outside
3, colored optical fiber unit, inner sheath 6, aramid fiber 4 and oversheath 5, center reinforcemen 3 is twisted outside foaming packing gasket 2 and coloured light
Fine unit, foaming packing gasket 2 and colored optical fiber unit surrounding are filled with water-blocking filling paste 1, and colored optical fiber unit includes more
Coloured light fibre 7, thixotropy fiber paste 9 and PBT Loose tubes 8, more colored optical fibers 7, thixotropy fiber paste 9 are filled in PBT Loose tubes 8.
Inner sheath 6 is polyethylene inner sheath.Oversheath 5 is pe sheath or anti-electric-mark sheath.
Raw material（It is poly- that polyethylene is selected from high density polyethylene (HDPE) (HDPE), linear low density polyethylene (LLDPE), high density
Ethylene (HDPE), low density polyethylene (LDPE)（LDPE), calcium carbonate superfine powder, Foamex）, in order put into heating stirring elevator into
Row is sufficiently mixed, and respective characteristic is played after so that each raw material is passed through heating and mutually grafting, subsequently into extruder, is divided into double squeeze
Go out machine co-extrusion die head, cladding material is extruded into the cylinder of resistance to resistance to compression, and smooth in appearance does not absorb cable lubricate characteristic, and internal layer is formed
According to the porous foamed body that technology requires, volume is light, and material utilization amount is few.
Extruder technological temperature, it is 150 DEG C, 160 DEG C, 165 DEG C, 168 DEG C, 170 DEG C, 175 DEG C, 180 DEG C, multistage from low to high
Heating, extruder screw compression ratio 1:1.8.Packing gasket granule material heated melting in an extruder, while by nitrogen certain
It is injected under pressure wherein, gas is released using decompression, to generate the uniform bubble combined closely with internal layer, form second
Buried layer in alkene foaming packing gasket body, outer layer form the polyethylene foam that buried layer is combined closely with clad after resin coats
Gasket for packing.
Compared with common gasket for packing：The calcium carbonate that common gasket for packing uses easily absorbs the moisture in optical cable paste, causes to hinder
Water ointment breaks up, and does not have resistance effect, and signal transmission is influenced after causing optical cable to be installed and used, and shortens optical cable service life.
The present invention, since density is small, light-weight, can reduce the weight of finished cable using foaming packing gasket, save transport
Cost is easily installed construction, and does not absorb the moisture in optical cable paste, it is ensured that transmission performance prolongs the service life.The product
Light-weight, density is low, and toughness is strong, environment friendly and pollution-free.
Claims (3)
1. a kind of low-density light communication optical cable, it is characterised in that：It includes center reinforcemen, colored optical fiber successively from inside to outside
Unit, inner sheath, aramid fiber and oversheath, the center reinforcemen is twisted outside foaming packing gasket and colored optical fiber unit, described
Foaming packing gasket and colored optical fiber unit surrounding are filled with water-blocking filling paste, the colored optical fiber unit include more coloured light
Fine, thixotropy fiber paste and PBT Loose tubes, more colored optical fibers, thixotropy fiber paste are filled in PBT Loose tubes.
2. a kind of low-density light communication optical cable according to claim 1, it is characterised in that：The inner sheath is polyethylene
Inner sheath.
3. a kind of low-density light communication optical cable according to claim 1, it is characterised in that：The oversheath is polyethylene
Sheath or anti-electric-mark sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820232801.4U CN208076780U (en) | 2018-02-09 | 2018-02-09 | A kind of low-density light communication optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820232801.4U CN208076780U (en) | 2018-02-09 | 2018-02-09 | A kind of low-density light communication optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208076780U true CN208076780U (en) | 2018-11-09 |
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ID=64037871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820232801.4U Active CN208076780U (en) | 2018-02-09 | 2018-02-09 | A kind of low-density light communication optical cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN208076780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111554436A (en) * | 2020-06-08 | 2020-08-18 | 芜湖启航电缆材料有限公司 | Light filling rope for cable |
| 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 |
-
2018
- 2018-02-09 CN CN201820232801.4U patent/CN208076780U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111554436A (en) * | 2020-06-08 | 2020-08-18 | 芜湖启航电缆材料有限公司 | Light filling rope for cable |
| 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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