CN208283615U - A kind of non-armored optical cable of layer-twisted type - Google Patents
A kind of non-armored optical cable of layer-twisted type Download PDFInfo
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- CN208283615U CN208283615U CN201820849266.7U CN201820849266U CN208283615U CN 208283615 U CN208283615 U CN 208283615U CN 201820849266 U CN201820849266 U CN 201820849266U CN 208283615 U CN208283615 U CN 208283615U
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- peripheral surface
- optical cable
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- outer peripheral
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Abstract
The utility model relates to a kind of non-armored optical cables of layer-twisted type, belong to optical cable technology field, solves the technical problem of optical cable heat insulation difference, including cable core ontology, the outer peripheral surface of cable core ontology is successively coated with aluminium-plastic tape, sheath and fireprotection layer, the insulating unit for improving the non-armored optical cable heat insulation of layer-twisted type is provided between sheath and fireprotection layer, insulating unit includes the glass layer for being coated on sheath outer peripheral surface and the mica layer for being coated on glass layer outer peripheral surface, and the inner peripheral surface and outer peripheral surface of glass layer are coated with nanometer titanium dioxide silica aerogel.The non-armored optical cable of the layer-twisted type of the utility model, by the glass fibre and mica layer of coated with nano aerosil, making it not only has good heat insulation, but also has the advantages that fire prevention, higher-strength.
Description
Technical field
The utility model relates to optical cable technology field, in particular to a kind of non-armored optical cable of layer-twisted type.
Background technique
Optical fiber is a kind of light conduction work up to the total reflection principle transmission for causing light in the fiber made of glass or plastics
Tool.Optical cable is a certain number of optical fiber according to the certain way group stranding heart, is surrounded by sheath outside, some also cladding outer jackets, to
Realize a kind of communication line of optical signal transmission.
With information-based development, the conveying capacity of information is increased rapidly, and optical cable is widely used.Existing optical cable exists
In use process, usually due to the variation of ambient temperature cause to generate between each material it is different expand with heat and contract with cold, when serious
Cause Loose tube to bounce back, causes the optic fibre force in Loose tube, optical fiber generates bending, to influence communication performance.
Utility model content
The purpose of this utility model is to provide a kind of non-armored optical cables of layer-twisted type, not only have good heat-insulated effect
Fruit, but also have the advantages that fire prevention, high intensity.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of non-armored optical cable of layer-twisted type, including cable core ontology, the outer peripheral surface of the cable core ontology are successively coated with plastic-aluminum
Composite band, sheath and fireprotection layer are provided with for improving the heat-insulated effect of the non-armored optical cable of layer-twisted type between the sheath and fireprotection layer
The insulating unit of fruit, the insulating unit include being coated on the glass layer of sheath outer peripheral surface and being coated on outside glass layer
The mica layer of circumferential surface, the inner peripheral surface and outer peripheral surface of the glass layer are coated with nanometer titanium dioxide silica aerogel.
By using above-mentioned technical proposal, mica layer and glass layer, have excellent high temperature resistant, it is resistance to burning and it is heat-insulated
Performance, when ambient temperature changes, can be avoided high temperature biography by the mutual cooperation of glass layer and mica layer
It is delivered to the inside of the non-armored optical cable of layer-twisted type, plays good heat insulation, glass fibre layer surface coated with nano silica
Aeroge further improves the heat insulation of the non-armored optical cable of layer-twisted type, prevent the non-armored optical cable internal material of layer-twisted type it
Between generate expand with heat and contract with cold and influence its communication performance.The non-armored optical cable of the layer-twisted type not only has good heat insulation, and
And also have the advantages that fire prevention, high intensity.
The utility model is further arranged to: the fireprotection layer is by the polylefin thermoplatic composite material system containing fire retardant
At fireprotection layer, be provided with several reinforcing ribs along its length in the mica layer, the reinforcing rib is set as steel wire.
By using above-mentioned technical proposal, the setting of reinforcing rib improves the intensity of the non-armored optical cable of layer-twisted type.
The utility model is further arranged to: the sheath outer peripheral surface offers along its length to be arranged in semi-cylindrical
And radius is less than the cavity of jacket thickness.
By using above-mentioned technical proposal, cavity not only acts as certain heat-blocking action, and increases the deformation of sheath
Space, when the non-armored optical cable of layer-twisted type is by external pressure, can effective dissipation of ferees, reduce the non-armouring of layer-twisted type
There is a possibility that fracture damage in optical cable.
The utility model is further arranged to: the cable core ontology includes center reinforcemen, several around center reinforcemen
Outer peripheral surface is compact to be twisted into circular fiber unit and the cable cream for filling gap between fiber unit and aluminium-plastic tape,
The fiber unit includes Loose tube, the optical fiber being sheathed in Loose tube and for filling gap between optical fiber and Loose tube
Fiber paste, the quantity of the optical fiber are at least one.
By using above-mentioned technical proposal, optical fiber is sheathed in Loose tube, and the gap between optical fiber and Loose tube passes through
Fiber paste filling prevents cable core body interior from cavity occur and influences the intensity of cable core ontology；Center reinforcemen further mentions simultaneously
The high intensity of the non-armored optical cable of layer-twisted type.
The utility model is further arranged to: the center reinforcemen is set as steel wire, and the fiber paste, cable cream are disposed as
Waterproofing unction.
By using above-mentioned technical proposal, not only make the processing of center reinforcemen more convenient, but also waterproofing unction can rise
To good block-water effect, and then improve the waterproof effect of cable core ontology.
The utility model is further arranged to: being evenly distributed with granular activated carbon in the cable cream.
By using above-mentioned technical proposal, waterproofing unction make because of corrosive moisture moisture flow into its it is internal when, by
There are good water absorbing properties in granular activated carbon, and moisture is all absorbed into inside it, prevent moisture to waterproofing unction
It further corrodes, by the mutual cooperation between waterproofing unction and granular activated carbon, further improves the waterproof of cable core ontology
Effect.
The utility model is further arranged to: the oval setting in the cross section of the Loose tube, and the Loose tube
The extended line of cross section long axis and the axis intersection of center reinforcemen.
By using above-mentioned technical proposal, the circular in cross-section for the Loose tube that compares is arranged, and the cross section of Loose tube is in
Ellipse setting, not only increases the intensity of cable core ontology, and increase the capacity of optical fiber in cable core ontology.
The utility model is further arranged to: the Loose tube outer peripheral surface is installed with along one end of its cross section short-axis direction
Limited block, the other end offer limiting groove compatible with limited block, and the end face of the limited block front of motor is in bending side
To the arc setting for being directed toward Loose tube.
By using above-mentioned technical proposal, when fiber unit is in installation condition, the fixed block of Loose tube is located at adjacent
In the limiting groove of Loose tube, several Loose tubes are compact to be twisted into a circle.The setting of limited block and limiting groove, to adjacent
The position of two Loose tubes is defined, and not only makes the installation of several Loose tubes more convenient, but also prevent the non-armouring light of layer-twisted type
Cable Loose tube in processing moves.
The utility model is further arranged to: the fiber unit outer peripheral surface is coated with one layer of protective jacket, the protective jacket
Inner peripheral surface offers positioning groove compatible with Loose tube.
By using above-mentioned technical proposal, when fiber unit is in installation condition, Loose tube is along its cross section long axis side
It is located in positioning groove to and far from one end of center reinforcemen, further defines the installation site of Loose tube, make Loose tube
It installs more stable, simultaneously because Loose tube one end is located in locating slot, increases the contact area between Loose tube and protective jacket,
When the non-armored optical cable of layer-twisted type is by external pressure, pressure is effectively dispersed, and then improve the intensity of cable core ontology.
The utility model is further arranged to: winding cable core ontology is provided between the aluminium-plastic tape and cable core ontology
The water blocking yarn of outer peripheral surface, the water blocking yarn outer peripheral surface longitudinal wrap have a waterstop, and the waterstop is located at water blocking yarn and plastic-aluminum combined
Between band.
By using above-mentioned technical proposal, water blocking yarn and waterstop can play good waterproof effect, to improve
The waterproof effect of the non-armored optical cable of layer-twisted type.
In conclusion the utility model has the following beneficial effects:
1, the non-armored optical cable of the layer-twisted type of the utility model not only has good heat insulation, but also has anti-
The advantages of fire, high compressive strength.
2, the setting of reinforcing rib improves the intensity of the non-armored optical cable of layer-twisted type；The cavity opened up on sheath simultaneously, into one
Step improves the heat insulation of the non-armored optical cable of layer-twisted type, and reduce that fracture damage occurs in the non-armored optical cable of layer-twisted type can
It can property.
3, by being added granular activated carbon in waterproofing unction, the mutual cooperation of waterproofing unction and granular activated carbon is realized,
Improve the waterproof effect of cable core ontology.
4, the oval setting in Loose tube cross section, not only increases the intensity of cable core ontology, and increases cable core sheet
The capacity of optical fiber in body.
5, by the way that limited block is arranged on Loose tube and opens up limiting groove, the quick of several Loose tubes is not only realized
Installation, and prevent the non-armored optical cable of layer-twisted type Loose tube in processing from moving, while protective jacket is set and is being protected
Set opens up positioning groove, not only makes the installation of Loose tube more stable, but also improve the intensity of cable core ontology.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is the top view of embodiment；
Fig. 3 is the portion the A enlarged drawing in Fig. 2.
In figure, 1, cable core ontology；11, center reinforcemen；12, fiber unit；121, Loose tube；1211, limited block；
1212, limiting groove；122, optical fiber；123, fiber paste；13, cable cream；131, granular activated carbon；14, protective jacket；141, it positions recessed
Slot；2, aluminium-plastic tape；21, water blocking yarn；22, waterstop；3, sheath；31, cavity；4, insulating unit；41, glass layer；
42, mica layer；421, reinforcing rib；5, fireprotection layer.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.The wherein identical attached drawing of identical components
Label indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to
It is the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and "outside" are referred respectively to towards or away from particular elements geometry
The direction at center.
Embodiment, a kind of non-armored optical cable of layer-twisted type as depicted in figs. 1 and 2, including cable core ontology 1, are coated on cable core sheet
The aluminium-plastic tape 2 of 1 outer peripheral surface of body, is coated on the heat-insulated of 3 outer peripheral surface of sheath at the sheath 3 for being coated on 2 outer peripheral surface of aluminium-plastic tape
Unit 4 and the fireprotection layer 5 for being coated on 4 outer peripheral surface of insulating unit.
As shown in Figures 2 and 3, cable core ontology 1 include center reinforcemen 11, it is several around 11 outer peripheral surface of center reinforcemen it is tight
It gathers and is twisted into circular fiber unit 12 and the cable cream 13 for filling gap between fiber unit 12 and aluminium-plastic tape 2.
The quantity of fiber unit 12 is set as 19 in the present embodiment.Cable cream 13 is preferably greasy for preventing water, in order to increase cable core ontology 1
Waterproof effect, cable cream 13 is interior to contain granular activated carbon 131, and granular activated carbon 131 and cable cream 13 uniformly mix.Center reinforcemen
11 be preferably phosphating steel wire.
Greasy for preventing water can play good block-water effect, therefore improve the waterproof effect of cable core ontology 1, while anti-
Water ointment make because of corrosive moisture moisture flow into its it is internal when, due to granular activated carbon 131 have good water absorbing properties,
And be all absorbed into moisture inside it, further erosion of the moisture to waterproofing unction is prevented, it is living by waterproofing unction and particle
Mutual cooperation between property charcoal 131, improves the waterproof effect of cable core ontology 1.
As shown in figure 3, fiber unit 12 includes the Loose tube 121 of the oval setting in cross section, 121 cross section of Loose tube
Long axis and the axis of center reinforcemen 11 be vertically arranged, and the axis of the extended line of 121 long axis of Loose tube and center reinforcemen 11
Line intersection.At least one optical fiber 122 is arranged in Loose tube 121, and the gap fiber paste between Loose tube 121 and optical fiber 122
123 fillings.In order to improve the waterproof effect of fiber unit 12, fiber paste 123 is preferably greasy for preventing water.
When the non-armored optical cable of layer-twisted type is by external force and applies pressure to fiber unit 12,121 cross section of Loose tube is in
Ellipse compares 121 cross section of Loose tube when being round, not only increases Loose tube 121 along cross section long axis direction in separate
11 one end of center reinforcemen to increase the deflection of Loose tube 121, and then increases to the distance of 11 axis of center reinforcemen
The intensity of optical cable unit；And the contact area between two neighboring Loose tube 121 is also added, effectively disperse pressure
Power further improves the intensity of cable core ontology 1.
Simultaneously in the circular ring shape that 13 cross section of cable cream is formed, since the short axle of 121 cross section of Loose tube is less than cable cream 13
Thickness, when relative to 121 cross section of Loose tube being round, i.e. the diameter of 121 cross section of the Loose tube thickness that is equal to cable cream 13,
If the percentage that gross area when several 121 cross sections of Loose tube are ellipse accounts for the gross area of 13 cross section of cable cream is greater than dry and soft
Gross area when 121 cross section of casing is round accounts for the gross area of 13 cross section of cable cream, therefore 121 cross section of Loose tube is ellipse
Shape increases the capacity of optical fiber 122 in cable core ontology 1.
As shown in Figures 2 and 3, in the process of cable core ontology 1, for the ease of realizing between several fiber units 12
Fast Installation and positioning, 121 outer peripheral surface of Loose tube in one end along its cross section short-axis direction be installed with limited block 1211,
The other end offers limiting groove 1212 compatible with limited block 1211, and the end face of 1211 front of motor of limited block is arc-shaped to be set
It sets, and the bending direction of arc is directed toward Loose tube 121.12 outer peripheral surface of fiber unit is coated with one layer of protective jacket 14, protective jacket 14
It is made of polyethylene, and the inner peripheral surface of protective jacket 14 offers positioning groove 141 compatible with Loose tube 121.In optical fiber list
When member 12 is in installation condition, the fixed block of Loose tube 121 is located in the limiting groove 1212 of adjacent Loose tube 121, if dry and soft
Casing 121 is compact to be twisted into a circle, and Loose tube 121 along its cross section long axis direction and far from center reinforcemen 11 one
End is located in positioning groove 141.
The setting of limited block 1211 and limiting groove 1212 is defined the position of two neighboring Loose tube 121, not only
Keep the installation of several Loose tubes 121 more convenient, and prevents the non-armored optical cable of layer-twisted type Loose tube 121 in processing from moving
It is dynamic.The setting of positioning groove 141 on protective jacket 14, further defines the installation site of Loose tube 121, pacifies Loose tube 121
It fills more stable, simultaneously because 121 one end of Loose tube is located in locating slot, increases connecing between Loose tube 121 and protective jacket 14
Contacting surface product, when the non-armored optical cable of layer-twisted type is by external pressure, can effectively disperse pressure, and then improve cable core ontology
1 intensity.
As depicted in figs. 1 and 2, for 2 longitudinal wrap of aluminium-plastic tape on 1 outer peripheral surface of cable core ontology, aluminium-plastic tape 2 is set as double
Face plastic-coated aluminium strip.Water blocking yarn 21 and waterstop 22 are provided between aluminium-plastic tape 2 and cable core ontology 1, water blocking yarn 21 winds cable
The setting of 1 outer peripheral surface of core ontology, waterstop 22 are coated on 21 outer peripheral surface of water blocking yarn, and be located at water blocking yarn 21 and aluminium-plastic tape 2 it
Between.
As depicted in figs. 1 and 2, sheath 3 is made of polyethylene, and the outer peripheral surface of sheath 3 uniformly opens up along its length
There are several cavitys 31, cavity 31 is arranged in semi-cylindrical, and the radius of cavity 31 is less than the thickness of sheath 3.
As depicted in figs. 1 and 2, insulating unit 4 includes glass layer 41 and mica layer 42, and glass layer 41 is located at cloud
Between mother layer 42 and sheath 3, the inner peripheral surface and outer peripheral surface of glass layer 41 are coated with one layer of nanometer titanium dioxide silica aerogel,
10 reinforcing ribs 421 are evenly arranged in mica layer 42, reinforcing rib 421 is arranged along 42 length direction of mica layer, and reinforcing rib 421
Setting cylindrical, reinforcing rib 421 are preferably steel wire.Fireprotection layer 5 is made of the polylefin thermoplatic composite material containing fire retardant,
And hydracid is not discharged, have the characteristics that self-extinguishment.
Mica layer 42 is a kind of high performance hot-face insulation insulating product, have excellent high temperature resistant, it is resistance to burning and it is heat-insulated
Performance can be avoided the inside that high temperature is transmitted to the non-armored optical cable of layer-twisted type, play good when ambient temperature changes
Good heat insulation；And the glass layer 41 of coated with nano aerosil, further improve the non-armour of layer-twisted type
The heat insulation of dress optical cable realizes the non-armored optical cable of layer-twisted type by the mutual cooperation of glass layer 41 and mica layer 42
Heat insulation, prevent between the non-armored optical cable internal material of layer-twisted type generate expand with heat and contract with cold and influence its communication performance.The layer
The non-armored optical cable of strand formula, not only has good heat insulation, but also has the advantages that fire prevention, high intensity.
The setting of reinforcing rib 421 improves the intensity of the non-armored optical cable of layer-twisted type；The cavity 31 opened up on sheath 3 is not only
Certain heat-blocking action is played, and increases the deformation space of sheath 3, in the non-armored optical cable of layer-twisted type by external pressure
When, it can effectively disperse pressure, reduce the non-armored optical cable of layer-twisted type and a possibility that fracture damage occur.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (10)
1. a kind of non-armored optical cable of layer-twisted type, it is characterised in that: including cable core ontology (1), the outer peripheral surface of the cable core ontology (1)
It is successively coated with aluminium-plastic tape (2), sheath (3) and fireprotection layer (5), is arranged between the sheath (3) and fireprotection layer (5) useful
In the insulating unit (4) for improving the non-armored optical cable heat insulation of layer-twisted type, the insulating unit (4) is coated on sheath (3)
The glass layer (41) of outer peripheral surface and the mica layer (42) for being coated on glass layer (41) outer peripheral surface, the glass layer
(41) inner peripheral surface and outer peripheral surface is coated with nanometer titanium dioxide silica aerogel.
2. the non-armored optical cable of a kind of layer-twisted type according to claim 1, it is characterised in that: the fireprotection layer (5) is by containing
Fireprotection layer (5) made of the polylefin thermoplatic composite material of fire retardant, the mica layer (42) is interior to be arranged along its length
Have several reinforcing ribs (421), the reinforcing rib (421) is set as steel wire.
3. the non-armored optical cable of a kind of layer-twisted type according to claim 1, it is characterised in that: sheath (3) the outer peripheral surface edge
Its length direction is offered in semi-cylindrical setting and radius is less than the cavity (31) of sheath (3) thickness.
4. the non-armored optical cable of a kind of layer-twisted type according to claim 1, it is characterised in that: the cable core ontology (1) includes
Center reinforcemen (11), it is several around center reinforcemen (11) outer peripheral surface it is compact be twisted into circular fiber unit (12) and use
The cable cream (13) in gap between filling fiber unit (12) and aluminium-plastic tape (2), the fiber unit (12) include pine set
Pipe (121), the optical fiber (122) that is sheathed in Loose tube (121) and for filling between optical fiber (122) and Loose tube (121)
The quantity of the fiber paste (123) in gap, the optical fiber (122) is at least one.
5. the non-armored optical cable of a kind of layer-twisted type according to claim 4, it is characterised in that: the center reinforcemen (11) sets
It is set to steel wire, the fiber paste (123), cable cream (13) are disposed as waterproofing unction.
6. the non-armored optical cable of a kind of layer-twisted type according to claim 5, it is characterised in that: uniformly divide in the cable cream (13)
It is furnished with granular activated carbon (131).
7. the non-armored optical cable of a kind of layer-twisted type according to claim 4, it is characterised in that: the cross of the Loose tube (121)
Ellipsoidal cross section setting, and the axis of the extended line of the cross section long axis of the Loose tube (121) and center reinforcemen (11)
Intersection.
8. the non-armored optical cable of a kind of layer-twisted type according to claim 7, it is characterised in that: Loose tube (121) periphery
Face is installed with limited block (1211) along one end of its cross section short-axis direction, the other end is offered and is adapted with limited block (1211)
Limiting groove (1212), the end face of limited block (1211) front of motor is directed toward the arc of Loose tube (121) in bending direction
Shape setting.
9. the non-armored optical cable of a kind of layer-twisted type according to claim 8, it is characterised in that: fiber unit (12) periphery
Bread is covered with one layer of protective jacket (14), and it is recessed that protective jacket (14) inner peripheral surface offers positioning compatible with Loose tube (121)
Slot (141).
10. the non-armored optical cable of a kind of layer-twisted type according to claim 1, it is characterised in that: the aluminium-plastic tape (2) and
The water blocking yarn (21) of winding cable core ontology (1) outer peripheral surface is provided between cable core ontology (1), water blocking yarn (21) outer peripheral surface is vertical
It is surrounded by waterstop (22), and the waterstop (22) is located between water blocking yarn (21) and aluminium-plastic tape (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820849266.7U CN208283615U (en) | 2018-06-02 | 2018-06-02 | A kind of non-armored optical cable of layer-twisted type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820849266.7U CN208283615U (en) | 2018-06-02 | 2018-06-02 | A kind of non-armored optical cable of layer-twisted type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208283615U true CN208283615U (en) | 2018-12-25 |
Family
ID=64705628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820849266.7U Expired - Fee Related CN208283615U (en) | 2018-06-02 | 2018-06-02 | A kind of non-armored optical cable of layer-twisted type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208283615U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114594556A (en) * | 2022-01-14 | 2022-06-07 | 杭州富通通信技术股份有限公司 | Flame-retardant optical cable |
| CN117741883A (en) * | 2024-02-19 | 2024-03-22 | 江苏南方通信科技有限公司 | Layer-twisted type outdoor optical cable |
-
2018
- 2018-06-02 CN CN201820849266.7U patent/CN208283615U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114594556A (en) * | 2022-01-14 | 2022-06-07 | 杭州富通通信技术股份有限公司 | Flame-retardant optical cable |
| CN117741883A (en) * | 2024-02-19 | 2024-03-22 | 江苏南方通信科技有限公司 | Layer-twisted type outdoor optical cable |
| CN117741883B (en) * | 2024-02-19 | 2024-05-03 | 江苏南方通信科技有限公司 | Layer-twisted type outdoor optical cable |
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| CF01 | Termination of patent right due to non-payment of annual fee |