CN220085133U - Nonmetallic armored optical cable - Google Patents
Nonmetallic armored optical cable Download PDFInfo
- Publication number
- CN220085133U CN220085133U CN202321762468.5U CN202321762468U CN220085133U CN 220085133 U CN220085133 U CN 220085133U CN 202321762468 U CN202321762468 U CN 202321762468U CN 220085133 U CN220085133 U CN 220085133U
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- China
- Prior art keywords
- nonmetallic
- inner sheath
- fiber optic
- cable
- frp
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Links
- 230000003287 optical effect Effects 0.000 title abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 239000013307 optical fiber Substances 0.000 claims description 22
- 239000000835 fiber Substances 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 9
- 239000004760 aramid Substances 0.000 claims description 5
- 229920003235 aromatic polyamide Polymers 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910052755 nonmetal Inorganic materials 0.000 description 3
- 241000256602 Isoptera Species 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000013308 plastic optical fiber Substances 0.000 description 1
- -1 polybutylene terephthalate Polymers 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Communication Cables (AREA)
Abstract
The utility model discloses a nonmetallic armored optical cable, which comprises an inner sheath; at least two cable cores arranged in the inner sheath side by side; a protective water-resistant layer surrounding the cable core and located within the inner sheath; an outer sheath surrounding the inner sheath; the first FRP layer is arranged between the inner sheath and the outer sheath, the first FRP layer comprises a plurality of flat FRP rods, and the plurality of flat FRP rods are arranged around the inner sheath to form an annular structure. According to the nonmetallic armored optical cable, the flat FRP rods with the corresponding number can be selected according to the diameter of the inner sheath, and the FRP rods can be freely and self-assembled into the FRP layer.
Description
Technical Field
The utility model relates to the field of cables, in particular to a nonmetallic armored optical cable.
Background
Cables are a generic term for items such as optical cables and electric cables. The cable has many applications, mainly for signal transmission, control installation, connection equipment, power transmission, and the like.
Cables are a generic term for items such as optical cables and electric cables. The optical cable has many applications, mainly for controlling installation, connection equipment, power transmission, etc.
Communication cables consist of two or more glass or plastic optical fiber cores, which are positioned in a protective coating, covered by a polymeric material sleeve.
Currently, there are many types of communication cables, and the number of optical fibers in the cables varies depending on the application. The loose tube is as follows: optical fibers can be loosely placed in the cable, and a sleeve made of polybutylene terephthalate (PBT) protects the optical fibers from internal stress and external side pressure. CN116125613a discloses a nonmetallic optical cable, but in the optical cable, the FRP layer adopted by the optical cable is of an integral annular structure, so that the assembly of optical fibers with different diameters cannot be satisfied, and in addition, the requirement of tightness between the FRP layer and other layers is difficult to satisfy during assembly.
Disclosure of Invention
Based on the technical defects, the utility model provides the nonmetal armored optical cable, which can select flat FRP rods with corresponding numbers according to the diameter of the inner sheath, and can be freely and self-assembled into an FRP layer, so that the problems in the prior art are solved.
The utility model provides a nonmetallic armored optical cable, which comprises an inner sheath; at least two cable cores arranged in the inner sheath side by side; a protective water-resistant layer surrounding the cable core and located within the inner sheath; an outer sheath surrounding the inner sheath; the first FRP layer is arranged between the inner sheath and the outer sheath, the first FRP layer comprises a plurality of flat FRP rods, and the plurality of flat FRP rods are arranged around the inner sheath to form an annular structure.
In an embodiment of the utility model, the protective water-blocking layer includes a water-blocking layer surrounding the cable core; the aramid yarn layer is arranged between the water-resistant layer and the inner sheath.
In an embodiment of the utility model, the nonmetallic armored optical cable further includes a second FRP layer disposed in the inner sheath, and the cable core is disposed around the second FRP layer.
In one embodiment of the present utility model, the loose tube includes a water blocking yarn disposed within the inner sheath.
In one embodiment of the utility model, the water blocking yarns are disposed between the cable core and the second FRP layer.
In an embodiment of the utility model, the loose tube further includes a first tearing rope disposed between the protective water-blocking layer and the inner sheath; and a second tear line disposed between the first FRP layer and the outer sheath.
In one embodiment of the utility model, the cable core comprises a loose tube; the optical fiber is arranged in the loose tube; and fiber paste filled in the loose tube.
In an embodiment of the present utility model, a groove is provided on an outer surface of the loose tube, and a color bar is provided in the groove.
In an embodiment of the present utility model, the color of the color bar is different from the color of the sleeve body.
In an embodiment of the present utility model, the number of the optical fibers is functionally corresponding to the number of the color bars: the color type of the sleeve body is n, the color type of the color bars is m, when the number of the optical fibers is more than n and less than or equal to n multiplied by m, the number of the color bars is 1, and when the number of the optical fibers is more than n multiplied by m and less than or equal to n multiplied by m 2 The number of color bars is 2.
The beneficial effects are that: the nonmetal armored optical cable disclosed by the utility model is free of metal materials, is nonconductive, can prevent lightning stroke, and has excellent rat and termite biting prevention. The loose tube and the cable core have simple structures, can effectively mark optical fibers of different specifications, have high identification degree, are not limited by the number of the optical fibers, are basically suitable for all types of cables, are widely applied, and are easy to distinguish by adopting a color adding strip mode when the number of the inner jackets of the cable core exceeds 12 if the color of the tube body is set to be 12; does not fade, does not migrate, and can be identified in the whole life of the optical cable.
Drawings
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
FIG. 1 is a schematic diagram of a nonmetallic armored cable in accordance with an embodiment of the present utility model.
Fig. 2 is a schematic structural view of a cable core according to example 1 of the present utility model.
Fig. 3 is a schematic structural view of a cable core according to example 2 of the present utility model.
Wherein:
1 a cable core; 11 loose tubes; a 111 sleeve body;
13 color bars; 14 optical fibers; 15, fiber paste; 16 water-blocking yarns;
2 an inner sheath; 3, protecting a water-blocking layer; 31 a water barrier; 32 aramid yarn layers; 4 a first FRP layer; 5 an outer sheath; 6 a second FRP layer; 71 a first tear line; a second tear line 72; and 8, second water blocking yarns.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is referred to in the embodiment of the present utility model, the directional indication is merely used to explain a relative positional relationship, a movement condition, and the like between the components in a specific posture (shown in the drawings), and if the specific posture is changed, the directional indication is correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
As shown in fig. 1, the present utility model further provides a nonmetallic armored optical cable, which comprises an inner sheath 2, at least two cable cores, a protective waterproof layer 3, a first FRP layer 4, an outer sheath 5, a second FRP layer 6, a first tearing rope 71 and a second tearing rope 72.
At least two cable cores are arranged in the inner sheath 2 side by side; the cable core 1 comprises the loose tube 11; and a plurality of optical fibers 14 arranged in parallel in the loose tube 11. The loose tube 11 comprises a tube body 111 and at least one color bar 13. The sleeve body 111 is made of PBT material, and at least one groove is formed on the outer surface of the sleeve body in a concave manner, and extends along the length direction of the sleeve body 111; inner diameter of the sleeve body 111: 1.5-3.0mm, and the thickness is 0.2-0.5mm. The color of the sleeve body 111 is selected from: blue, orange, green, brown, gray, white, red, black, yellow, violet, pink, and cyan.
The color bar 13 is fixed in the groove. The color bar 13 can also be made of PBT material. The depth of the groove is one-fourth to one-half of the thickness of the sleeve body 111. The width of the color bars 13 is 1.0-2.0mm. The color of the color bar 13 is different from the color of the sleeve body 111. The color of the color bar 13 is selected from: blue, orange, green, brown, gray, white, red, black, yellow, violet, pink, and cyan.
The number of fibers 14 is functionally related to the number of color bars 13: the color type of the ferrule body 111 is n, the color type of the color bar 13 is m, when the number of the optical fibers 14 is greater than n and less than or equal to n×m, the number of the color bars 13 is 1, when the number of the optical fibers 14 is greater than n×m and less than or equal to n×m 2 The number of color bars 13 is 2. The cable core 1 further comprises a water blocking yarn 16 or fiber paste 15 filled in the loose tube 11.
As shown in example 1 and fig. 2, the present embodiment provides a cable core 1, which includes a loose tube 11, the color of the loose tube 11 is blue, 13 optical fibers 14 are arranged inside the loose tube 11, a fiber paste 15 is filled inside the loose tube 11, 1 color bar 13 is arranged inside the loose tube, and the color is black.
As shown in example 2 and fig. 3, the present embodiment provides a cable core 1, which includes a loose tube 11, the color of the loose tube 11 is yellow, 13 optical fibers 14 are arranged inside the loose tube 11, water blocking yarns 16 are filled inside the loose tube 11, 1 color bar 13 is arranged inside the loose tube, and the color is black.
The loose tube and the cable core of the embodiment have simple structure, can effectively mark optical fibers of different specifications, have high identification degree, are not limited by the number of the optical fibers, are basically suitable for all types of cables, have wide application, and are easy to distinguish by adopting a color strip mode when the number of the jackets in the cable core exceeds 12 if the color of the tube body is set to be 12; does not fade, does not migrate, and can be identified in the whole life of the optical cable.
The protective waterproof layer 3 surrounds the cable core and is positioned in the inner sheath 2; the protective waterproof layer 3 comprises a waterproof layer 31 and an aramid yarn layer 32, and the waterproof layer 31 surrounds the cable core 1; the aramid yarn layer 32 is disposed between the water blocking layer 31 and the inner sheath 2.
The outer sheath 5 surrounds the inner sheath 2; the first FRP layer 4 is arranged between the inner sheath 2 and the outer sheath 5, and the first FRP layer 4 comprises a plurality of flat FRP rods which are arranged around the inner sheath 2 to form an annular structure.
The second FRP layer 6 is disposed within the inner sheath 2, and the cable core is disposed around the second FRP layer 6.
The loose tube comprises water-blocking yarns, namely second water-blocking yarns 8, and is arranged in the inner sheath 2. In this embodiment, the second water blocking yarn 8 is disposed between the cable core and the second FRP layer 6.
The loose tube also comprises a first tearing rope 71 and a second tearing rope 72, wherein the first tearing rope 71 is arranged between the protective waterproof layer 3 and the inner sheath 2; a second tear line 72 is provided between the first FRP layer 4 and the outer sheath 5.
The nonmetal armored optical cable disclosed by the utility model is free of metal materials, is nonconductive, can prevent lightning stroke, and has excellent rat and termite biting prevention. According to the diameter of the inner sheath, flat FRP rods with corresponding numbers can be selected, and the FRP rods are freely self-assembled into FRP layers, so that the tightness among the layers of the optical cable is met.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It should be understood by those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the present utility model, and the present utility model is not limited to the above-described embodiments.
Claims (10)
1. A nonmetallic armored fiber optic cable, comprising
An inner sheath;
at least two cable cores arranged in the inner sheath side by side;
a protective water-resistant layer surrounding the cable core and located within the inner sheath;
an outer sheath surrounding the inner sheath;
the first FRP layer is arranged between the inner sheath and the outer sheath, the first FRP layer comprises a plurality of flat FRP rods, and the plurality of flat FRP rods are arranged around the inner sheath to form an annular structure.
2. The nonmetallic armored fiber optic cable of claim 1, wherein the protective water barrier comprises a water barrier surrounding the cable core;
the aramid yarn layer is arranged between the water-resistant layer and the inner sheath.
3. The nonmetallic armored fiber optic cable of claim 2, further comprising a second FRP layer disposed within the inner jacket, and the cable core is disposed about the second FRP layer.
4. A nonmetallic armored fiber optic cable according to claim 3, comprising a water blocking yarn disposed within the inner jacket.
5. The nonmetallic armored fiber optic cable of claim 4, wherein the water blocking yarns are disposed between the cable core and the second FRP layer.
6. The nonmetallic armored fiber optic cable of claim 1, further comprising
A first tear line disposed between the protective water barrier and the inner sheath; and
and the second tearing rope is arranged between the first FRP layer and the outer sheath.
7. The nonmetallic armored fiber optic cable of claim 1, wherein the cable core comprises a loose tube;
the optical fiber is arranged in the loose tube; and
and the fiber paste is filled in the loose tube.
8. The nonmetallic armored fiber optic cable of claim 7, wherein the outer surface of the loose tube is provided with grooves, and color bars are disposed in the grooves.
9. The nonmetallic armored fiber optic cable of claim 8, wherein the color bars are different from the color of the jacket body.
10. The nonmetallic armored fiber optic cable of claim 8, wherein the number of optical fibers is a functional correspondence with the number of color bars: the color type of the sleeve body is n, the color type of the color bars is m, when the number of the optical fibers is more than n and less than or equal to n multiplied by m, the number of the color bars is 1, and when the number of the optical fibers is more than n multiplied by m and less than or equal to n multiplied by m 2 The number of color bars is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321762468.5U CN220085133U (en) | 2023-07-06 | 2023-07-06 | Nonmetallic armored optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321762468.5U CN220085133U (en) | 2023-07-06 | 2023-07-06 | Nonmetallic armored optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220085133U true CN220085133U (en) | 2023-11-24 |
Family
ID=88823976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321762468.5U Active CN220085133U (en) | 2023-07-06 | 2023-07-06 | Nonmetallic armored optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220085133U (en) |
-
2023
- 2023-07-06 CN CN202321762468.5U patent/CN220085133U/en active Active
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