CN117741884B - Central beam tube type optical fiber ribbon cable - Google Patents
Central beam tube type optical fiber ribbon cable Download PDFInfo
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- CN117741884B CN117741884B CN202410185683.6A CN202410185683A CN117741884B CN 117741884 B CN117741884 B CN 117741884B CN 202410185683 A CN202410185683 A CN 202410185683A CN 117741884 B CN117741884 B CN 117741884B
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 96
- 230000001681 protective effect Effects 0.000 claims abstract description 196
- 239000010410 layer Substances 0.000 claims abstract description 110
- 238000004891 communication Methods 0.000 claims abstract description 56
- 239000011241 protective layer Substances 0.000 claims abstract description 8
- 238000002955 isolation Methods 0.000 claims description 27
- -1 polybutylene terephthalate Polymers 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920001903 high density polyethylene Polymers 0.000 claims description 5
- 239000004700 high-density polyethylene Substances 0.000 claims description 5
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 210000001624 hip Anatomy 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 12
- 230000035939 shock Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 11
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 229920001179 medium density polyethylene Polymers 0.000 description 2
- 239000004701 medium-density polyethylene Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
The invention belongs to the field of cables, and particularly relates to a central beam tube type optical fiber ribbon optical cable, which is provided with an outer protection layer and a communication component, wherein the outer protection layer is positioned outside the communication component, and is characterized in that: a central beam tube is arranged between the outer protective layer and the communication part, the central beam tube is composed of an outer protective part and an inner protective part, the inner protective part is inserted into the outer protective part and fixed, a gap is formed between the outer protective part and the inner protective part, the communication part is positioned in the inner protective part, and the inner protective part is provided with a second inlet and outlet; the invention has the advantages of simple structure, convenient fixing and separating of the inner layer protecting component and the outer layer protecting component, repeated use of the inner layer protecting component and the outer layer protecting component, good shock resistance, convenient taking of the communication component, capability of changing the number of the accommodating cavities for accommodating the optical fiber ribbon, and the like.
Description
Technical Field
The invention belongs to the field of cables, and particularly relates to a central beam tube type optical fiber ribbon cable.
Background
In the prior art, as disclosed in CN116626826a, a rat-proof optical cable with high core density is provided with three insulated wires, a protection tube, a plurality of optical fiber bands, a framework and an outer sheath, wherein the insulated wires are composed of conductors and insulating layers coating the conductors, and the optical fiber bands are composed of a plurality of optical fibers and a bonding layer coating the plurality of optical fibers integrally; the method is characterized in that: the framework is of an integrated structure, the cross section of the framework is regular hexagon, the framework consists of a first framework strip, a first extension strip, a first limit strip, a second framework strip, a second extension strip, a second limit strip, a third framework strip, a third extension strip and a third limit strip, one end of the first framework strip is connected with the other end of the second framework strip, one end of the second framework strip is connected with the other end of the third framework strip, one end of the third framework strip is connected with the other end of the first framework strip, the first extension strip extends from the connection part of one end of the third framework strip and the other end of the first framework strip, the second extension strip extends from the connection part of one end of the first framework strip and the other end of the second framework strip, the third extension strip extends from the connection part of one end of the second framework strip and the other end of the third framework strip, the extending end of the first extending strip is connected with one end of the first extending strip, the extending end of the second extending strip is connected with one end of the second extending strip, the extending end of the third extending strip is connected with one end of the third extending strip, one end of the first limiting strip is connected with the other end of the first extending strip, one end of the second limiting strip is connected with the other end of the second extending strip, one end of the third limiting strip is connected with the other end of the third extending strip, a first opening is formed between the other end of the first limiting strip and one end of the first framework strip, a second opening is formed between the other end of the second limiting strip and one end of the second framework strip, a third opening is formed between the other end of the third limiting strip and one end of the third framework strip, an inner space enclosed by the first framework strip, the second framework strip and the third framework strip is a central cavity, the cross section of the central cavity is a regular triangle, the first expansion strip is parallel to the first framework strip, a first framework cavity is formed between the first expansion strip and the first framework strip, the second expansion strip is parallel to the second framework strip, a second framework cavity is formed between the second expansion strip and the second framework strip, a third framework cavity is formed between the third expansion strip and the third framework strip, and the cross sections of the first framework cavity, the second framework cavity and the third framework cavity are isosceles trapezoids; three insulated wires are distributed in the protection tube in a pairwise tangent mode, the protection tube is located in the central cavity, optical fiber belts are arranged in the first framework cavity, the second framework cavity and the third framework cavity, and the outer sheath is coated outside the framework.
The prior art has the following defects: 1. the insulated wires in the central cavity are taken out, the central cavity and the framework are required to be damaged, and the taking is inconvenient; 2. the earthquake-proof effect is poor.
Disclosure of Invention
In order to solve the problems, the invention aims to disclose a central beam tube type optical fiber ribbon cable, which is realized by adopting the following technical scheme.
A central beam tube optical fiber ribbon cable having an outer jacket and a communications component, the outer jacket being external to the communications component, characterized in that: a central beam tube is arranged between the outer protective layer and the communication part, the central beam tube is composed of an outer protective part and an inner protective part, the outer protective part is composed of five outer protective part main bodies with the same length and two first limiting blocks, the five outer protective part main bodies are connected end to end in the same cross section and are regular hexagon frames with one edge missing at the upper ends, a first inlet and a first outlet are formed at the opening, a first containing cavity is formed between the five outer protective part main bodies, one ends of the two first limiting blocks are respectively connected with the end part of the corresponding outer protective part main body of the first inlet and the first outlet, the included angle between the first limiting block and the outer protective part main body connected with the first limiting block is more than or equal to 60 degrees and less than 90 degrees, and the two first limiting blocks are positioned in the first containing cavity;
The inner layer protection component is composed of five inner layer protection component bodies, two second limiting blocks and a top block, the five inner layer protection component bodies are connected end to end, a regular hexagon frame with one edge missing at the lower end is formed, the opening is a second inlet and outlet, a second containing cavity is formed between the five inner layer protection component bodies, the two second limiting blocks are respectively connected with the end parts of the corresponding inner layer protection component bodies at the second inlet and outlet, the top block is trapezoid, one shorter bottom edge of the trapezoid is connected with the outer wall of the inner layer protection component body right opposite to the second inlet and outlet, the length of the shorter bottom edge of the trapezoid is the same as that of the inner layer protection component body, the five inner layer protection component bodies are located in the first containing cavity, the other end of the first limiting block is propped into the corresponding included angle formed by the inner layer protection component bodies adjacent to the two sides of the top block, the communication component is located in the second containing cavity, the height of the communication component is smaller than the distance between the two second limiting blocks, and the inner layer protection component and the outer layer protection component are formed in a gap, and at least two optical fiber bands are stacked in the communication component.
The above-mentioned a central beam tube type optical fiber ribbon cable, its characterized in that: the two waists of the trapezoid are respectively attached to the corresponding first limiting blocks, and the other ends of the two first limiting blocks are respectively abutted to the corresponding inner layer protection component bodies adjacent to the two sides of the top block.
The above-mentioned a central beam tube type optical fiber ribbon cable, its characterized in that: the communication component comprises an upper protective cover, a lower protective cover and a plurality of optical fiber ribbon assemblies, wherein the upper protective cover comprises an upper protective cover main body and at least three supporting strips, the supporting strips are distributed below the upper protective cover main body at intervals in the same cross section, the upper ends of the supporting strips are connected with the lower wall of the upper protective cover main body, the lower protective cover comprises a lower protective cover main body, first inserting grooves with the same quantity as the supporting strips are arranged on the upper wall of the lower protective cover main body at intervals, the supporting strips are inserted into the corresponding first inserting grooves, a containing cavity is formed between every two adjacent supporting strips, an optical fiber ribbon assembly is arranged in the containing cavity, and the optical fiber ribbon assembly is formed by stacking at least two optical fiber ribbons.
The above-mentioned a central beam tube type optical fiber ribbon cable, its characterized in that: the communication component is further provided with at least one spacing component, the spacing component is composed of a connecting component and a row of first isolation strips, the upper end of each first isolation strip is connected with the lower wall of the connecting component along the length direction of the connecting component, a group of jacks are formed in the upper wall of the upper protection cover main body between two adjacent support strips along the length direction of the upper protection cover main body, the jacks are distributed at intervals, the first isolation strips are spliced with the corresponding jacks, the corresponding accommodating cavity is divided into two small accommodating cavities by the first splicing grooves, an optical fiber ribbon assembly is arranged in each small accommodating cavity, and the distance between the lower end of each first isolation strip and the upper wall of the lower protection cover is smaller than the thickness of each optical fiber ribbon.
The above-mentioned a central beam tube type optical fiber ribbon cable, its characterized in that: the communication component is composed of at least two upper protective covers, at least one middle protective cover, a lower protective cover and a plurality of optical fiber ribbon assemblies;
The upper protective cover is composed of an upper protective cover main body and at least three supporting bars, the supporting bars are distributed below the upper protective cover main body at intervals in the same cross section, the upper ends of the supporting bars are connected with the lower wall of the upper protective cover main body, a group of jacks are formed in the upper wall of the upper protective cover main body between two adjacent supporting bars along the length direction of the upper protective cover main body, and the jacks are distributed at intervals;
The lower protective cover is composed of a lower protective cover main body, a plurality of first inserting grooves are formed in the upper wall of the lower protective cover main body at intervals, the number of the first inserting grooves is the same as that of the supporting bars of the upper protective cover positioned at the lowest position, the supporting bars of the upper protective cover positioned at the lowest position are inserted into the corresponding first inserting grooves of the lower protective cover, and a containing cavity is formed between every two adjacent supporting bars;
The protective cover consists of a middle protective cover main body and at least one row of second isolating bars, the upper wall of the protective cover main body is provided with a plurality of second inserting grooves at intervals, the number of the second inserting grooves is the same as that of the supporting bars of the upper protective cover which are positioned above the middle protective cover and inserted with the middle protective cover, and the second isolating bars are connected with the lower wall of the protective cover main body;
The communication part is also provided with at least one spacing part, the spacing part is composed of a connecting part and a row of first isolating bars, and the upper end of each first isolating bar is connected with the lower wall of the connecting part along the length direction of the connecting part;
From bottom to top, the second isolation strip of well protective cover and the corresponding jack grafting of the upper protective cover of adjacent below, the second isolation strip separates two little appearance chambeies with corresponding appearance chambeies, the second jack groove of well protective cover and the corresponding support bar grafting of the upper protective cover of adjacent above, the first isolation strip is pegged graft with the corresponding jack of the upper protective cover of the upper strata, first jack groove separates two little appearance chambeies with corresponding appearance chambeies, little appearance intracavity all is equipped with a fiber ribbon assembly.
The above-mentioned a central beam tube type optical fiber ribbon cable, its characterized in that: and a reinforcing piece is further arranged in the top block, so that the tensile property of the optical cable is improved.
The above-mentioned a central beam tube type optical fiber ribbon cable, its characterized in that: the joint of the support bar and the upper protective cover main body is provided with a tearing opening for rapidly removing the support bar to combine two adjacent accommodating cavities.
The above-mentioned a central beam tube type optical fiber ribbon cable, its characterized in that: the upper protective cover and the lower protective cover are made of polybutylene terephthalate or modified polypropylene.
The above-mentioned a central beam tube type optical fiber ribbon cable, its characterized in that: the material of the protective cover is polybutylene terephthalate or modified polypropylene.
The above-mentioned a central beam tube type optical fiber ribbon cable, its characterized in that: the outer layer protection component and the inner layer protection component are made of high-density polyethylene.
The above-mentioned a central beam tube type optical fiber ribbon cable, its characterized in that: the material of the outer protective layer is high-density polyethylene or medium-density polyethylene or low-density polyethylene.
The above-mentioned a central beam tube type optical fiber ribbon cable, its characterized in that: the optical fiber ribbon is formed by combining at least two optical fibers, and the optical fibers are multimode optical fibers or single-mode optical fibers.
The application has the following beneficial effects:
1. The inner layer protection component is inserted into the outer layer protection component to form double-layer protection, so that the protection of the communication component is improved.
2. The inner layer protection part and the outer layer protection part can be detached, so that the communication part is convenient to take, the inner layer protection part and the outer layer protection part are not required to be damaged, the inner layer protection part and the outer layer protection part can be reused, and materials are saved.
3. A gap is formed between the inner layer protection part and the outer layer protection part, so that the shock resistance of the optical cable can be improved.
4. The inner layer protection part and the outer layer protection part are clamped into corresponding included angles between the top block and adjacent inner layer protection part bodies on two sides of the top block through the first limiting block, so that the inner layer protection part and the outer layer protection part are fixed, fixing such as yarn binding is not needed, and materials are saved and the inner layer protection part and the outer layer protection part are convenient.
5. The inner layer protecting component is provided with a second inlet and outlet, so that the communication component is conveniently taken from the second inlet and outlet.
6. The multi-layer cavity can be formed up and down, and the optical fiber ribbon can be placed to prevent optical fibers of different types from being mixed.
7. The holding cavity can be divided into two small holding cavities through the spacing component, the holding quantity of the optical fiber ribbons is improved, the optical fiber ribbons with large core numbers can be placed in the holding cavities, and the optical fiber ribbons with small core numbers can be placed in the small holding cavities.
8. Adjacent two layers of holding cavities are fixed through a protective cover, and can form a whole.
9. The upper protective cover, the lower protective cover and the middle protective cover are detachable, so that the optical fiber ribbon can be conveniently taken out, and the optical fiber ribbon can be reused, thereby saving materials.
10. The upper protective cover, lower protective cover, and protective cover enhance the protection of the fiber optic ribbon.
11. The support bar is provided with a tearing opening, so that the support bar can be removed rapidly, and two adjacent cavities are combined to form a larger cavity.
Drawings
Fig. 1 is a schematic perspective view of a section of embodiment 1.
Fig. 2 is a schematic structural view of the end face of embodiment 1.
Fig. 3 is a schematic structural view of an end face of the outer layer protecting member of embodiment 1.
Fig. 4 is a schematic structural view of an end face of the inner layer protection member of embodiment 1.
Fig. 5 is a schematic perspective view of a section of the communication part of embodiment 1.
Fig. 6 is a schematic structural view of an end face of the communication member of embodiment 1.
Fig. 7 is a schematic perspective view of a section of the upper protective cover of embodiment 1.
Fig. 8 is a schematic structural view of an end face of the upper protective cover of embodiment 1.
Fig. 9 is a schematic perspective view of a section of the lower protective cover of embodiment 1.
Fig. 10 is a schematic structural view of an end face of the lower protective cover of embodiment 1.
Fig. 11 is a schematic perspective view of a section of the communication part of embodiment 2.
Fig. 12 is a schematic structural view of an end face of a communication member of embodiment 2.
Fig. 13 is a schematic perspective view of a segment of the protective cover of embodiment 2.
Fig. 14 is a front view of the protective cover of embodiment 2.
Fig. 15 is a left side view of the protective cover of embodiment 2.
Fig. 16 is a schematic perspective view of one end of the spacer in embodiment 1.
In the figure: 1. outer jacket, 2 outer protective member, 21, first access opening, 22, first stop, 23, outer protective member body, 24, first cavity, 3, inner protective member, 31, top block, 32, inner protective member body, 33, second cavity, 34, second access opening, 35, second stop, 4, communication member, 41, upper protective cover, 411, upper protective cover body, 412, receiving slot, 413, receptacle, 414, support bar, 416, tear seam, 42, fiber optic ribbon, 43, lower protective cover, 431, lower protective cover body, 432, first mating slot, 44, spacer member, 441, connecting member, 442, first spacer, 45, cavity, 46, middle protective cover, 461, protective cover body, 462, second mating slot, 463.
Detailed Description
Example 1
As shown in fig. 1 to 10 and 16, a central beam tube type optical fiber ribbon cable has an outer sheath 1 and a communication part 4, the outer sheath 1 being located outside the communication part 4, characterized in that: the communication component 4 is composed of an upper protective cover 41, a lower protective cover 43, two spacing components 44 and five optical fiber ribbon assemblies, the upper protective cover 41 is composed of an upper protective cover main body 411 and four supporting bars 414, the four supporting bars 414 are distributed below the upper protective cover main body 411 at intervals in the same cross section, the upper ends of the supporting bars 414 are connected with the lower wall of the upper protective cover main body 411, the upper wall of the upper protective cover main body 411 between two adjacent supporting bars 414 forms a containing groove 412 along the length direction of the upper protective cover main body 411, and a plurality of inserting holes 413 are arranged in the containing groove 412 at intervals along the length direction of the containing groove 412;
The lower protective cover 43 is formed by a lower protective cover main body 431, four first inserting grooves 432 are arranged on the upper wall of the lower protective cover main body 431 at intervals, the supporting bars 414 are inserted into the corresponding first inserting grooves 432, a containing cavity 45 is formed between two adjacent supporting bars 414, the corresponding containing cavity 45 is divided into two small containing cavities by the first inserting grooves 432, and an optical fiber ribbon assembly is respectively arranged in the containing cavity 45 and the small containing cavities;
the spacing member 44 is composed of a connecting member 441 and a row of first isolation strips 442, and along the length direction of the connecting member 441, the upper end of each first isolation strip 442 is connected with the lower wall of the connecting member 441, the first isolation strips 442 are inserted into the corresponding insertion holes 413, and the connecting member 441 is clamped into the corresponding receiving groove 412;
The optical fiber ribbon combination is formed by stacking at least two optical fiber ribbons, and the distance between the lower end of the first isolation strip 442 and the upper wall of the lower protective cover 43 is smaller than the thickness of the optical fiber ribbon 42;
A central beam tube is further arranged between the outer protective layer 1 and the communication part 4, the central beam tube is composed of an outer protective part 2 and an inner protective part 3, the outer protective part 2 is composed of five outer protective part main bodies 23 with the same length and two first limiting blocks 22, in the same cross section, the five outer protective part main bodies 23 are connected end to end, a regular hexagon frame with one edge missing at the upper end is formed, a first inlet and outlet 21 is arranged at an opening, a first containing cavity 24 is formed between the five outer protective part main bodies 23, one end of each first limiting block 22 is connected with the end part of the corresponding outer protective part main body 23 of the first inlet and outlet 21, an included angle between each first limiting block 22 and the outer protective part main body 23 connected with each first limiting block 22 is more than or equal to 60 degrees and less than 90 degrees, and the two first limiting blocks 22 are positioned in the first containing cavity 24;
The inner layer protection component 3 is composed of five inner layer protection component bodies 32, two second limiting blocks 35 and a top block 31, the five inner layer protection component bodies 32 are connected end to end, a regular hexagon frame with one edge missing at the lower end is formed, the opening is a second inlet and outlet 34, a second containing cavity 33 is formed between the five inner layer protection component bodies 32, the two second limiting blocks 35 are respectively connected with the end part of one corresponding inner layer protection component body 32 of the second inlet and outlet 34, the top block 31 is trapezoid, one shorter bottom edge of the trapezoid is connected with the outer wall of one inner layer protection component body 32 right opposite to the second inlet and outlet 34, the length of the shorter bottom edge of the trapezoid is the same as the length of the inner layer protection component body 32, two waists of the trapezoid are respectively attached to the corresponding first limiting blocks 22, the five inner layer protection component bodies 32 are located in the first containing cavity 24, the other ends of the two first limiting blocks 22 are respectively abutted to the corresponding inner layer protection component bodies 32 adjacent to the two sides of the top block 31, the communication component 4 is located in the second containing cavity 33, and the height of the communication component 4 is smaller than the distance between the two limiting blocks 35 and the outer layer protection component 3.
Example 2
As shown in fig. 11 to 15, and referring to fig. 1 to 4, fig. 7 to 10 and 16, a central beam tube type optical fiber ribbon cable has an outer sheath 1 and a communication part 4, the outer sheath 1 being located outside the communication part 4, characterized in that: the communication part 4 is composed of two upper protective covers 41, one protective cover 46, one lower protective cover 43, two spacing parts 44 and ten optical fiber ribbon assemblies;
the upper protective cover 41 is composed of an upper protective cover main body 411 and four supporting bars 414, the four supporting bars 414 are distributed below the upper protective cover main body 411 at intervals in the same cross section, the upper ends of the supporting bars 414 are connected with the lower wall of the upper protective cover main body 411, the upper wall of the upper protective cover main body 411 between two adjacent supporting bars 414 forms a containing slot 412 along the length direction of the upper protective cover main body 411, and a plurality of jacks 413 are arranged in the containing slot 412 at intervals along the length direction of the containing slot 412;
The lower protective cover 43 is formed by a lower protective cover main body 431, four first inserting grooves 432 are arranged on the upper wall of the lower protective cover main body 431 at intervals, the supporting bars 414 of the upper protective cover 41 positioned below are inserted into the corresponding first inserting grooves 432 of the lower protective cover 43, and a containing cavity 45 is formed between two adjacent supporting bars 414;
the protective cover 46 is composed of a protective cover main body 461 and two rows of second isolating strips 463, four second inserting grooves 462 are arranged on the upper wall of the central protective cover main body 461 at intervals, the two rows of second isolating strips 463 are connected to the lower wall of the protective cover main body 461, the two rows of second isolating strips 463 are inserted into corresponding inserting holes 413 of the upper protective cover 41 positioned below, each row of second isolating strips 463 divides the corresponding containing cavity 45 into two small containing cavities, and one optical fiber ribbon assembly is arranged in each of the containing cavity 45 and the small containing cavities;
The supporting bars 414 of the upper protective cover 41 positioned above are inserted into the corresponding second inserting grooves 462 of the protective cover 46, and a containing cavity 45 is formed between two adjacent supporting bars 414;
The spacing member 44 is composed of a connecting member 441 and a row of first isolation strips 442, along the length direction of the connecting member 441, the upper end of each first isolation strip 442 is connected with the lower wall of the connecting member 441, the first isolation strip 442 is inserted into the corresponding insertion hole 413 of the upper protective cover 41 located above, the connecting member 441 is clamped into the corresponding receiving groove 412 of the upper protective cover 41 located above, the first isolation strip 442 divides the corresponding receiving cavity 45 into two small receiving cavities, and one optical fiber ribbon assembly is respectively arranged in the receiving cavity 45 and the small receiving cavities;
The optical fiber ribbon combination is formed by stacking at least two optical fiber ribbons, and the distance between the lower end of the first isolation strip 442 and the upper wall of the lower protective cover 43 is smaller than the thickness of the optical fiber ribbon 42;
A central beam tube is further arranged between the outer protective layer 1 and the communication part 4, the central beam tube is composed of an outer protective part 2 and an inner protective part 3, the outer protective part 2 is composed of five outer protective part main bodies 23 with the same length and two first limiting blocks 22, in the same cross section, the five outer protective part main bodies 23 are connected end to end, a regular hexagon frame with one edge missing at the upper end is formed, a first inlet and outlet 21 is arranged at an opening, a first containing cavity 24 is formed between the five outer protective part main bodies 23, one end of each first limiting block 22 is connected with the end part of the corresponding outer protective part main body 23 of the first inlet and outlet 21, an included angle between each first limiting block 22 and the outer protective part main body 23 connected with each first limiting block 22 is more than or equal to 60 degrees and less than 90 degrees, and the two first limiting blocks 22 are positioned in the first containing cavity 24;
The inner layer protection component 3 is composed of five inner layer protection component bodies 32, two second limiting blocks 35 and a top block 31, the five inner layer protection component bodies 32 are connected end to end, a regular hexagon frame with one edge missing at the lower end is formed, the opening is a second inlet and outlet 34, a second containing cavity 33 is formed between the five inner layer protection component bodies 32, the two second limiting blocks 35 are respectively connected with the end part of one corresponding inner layer protection component body 32 of the second inlet and outlet 34, the top block 31 is trapezoid, one shorter bottom edge of the trapezoid is connected with the outer wall of one inner layer protection component body 32 right opposite to the second inlet and outlet 34, the length of the shorter bottom edge of the trapezoid is the same as the length of the inner layer protection component body 32, two waists of the trapezoid are respectively attached to the corresponding first limiting blocks 22, the five inner layer protection component bodies 32 are located in the first containing cavity 24, the other ends of the two first limiting blocks 22 are respectively abutted to the corresponding inner layer protection component bodies 32 adjacent to the two sides of the top block 31, the communication component 4 is located in the second containing cavity 33, and the height of the communication component 4 is smaller than the distance between the two limiting blocks 35 and the outer layer protection component 3.
The application relates to a central beam tube type optical fiber ribbon optical cable, which is characterized in that: the upper protective cover 41 and the lower protective cover 43 are made of polybutylene terephthalate or modified polypropylene.
The application relates to a central beam tube type optical fiber ribbon optical cable, which is characterized in that: the material of the protective cover 46 is polybutylene terephthalate or modified polypropylene.
The application relates to a central beam tube type optical fiber ribbon optical cable, which is characterized in that: the material of the outer layer protecting member 2 and the inner layer protecting member 3 is high density polyethylene.
The application relates to a central beam tube type optical fiber ribbon optical cable, which is characterized in that: the material of the outer protective layer 1 is high-density polyethylene or medium-density polyethylene or low-density polyethylene.
The application relates to a central beam tube type optical fiber ribbon optical cable, which is characterized in that: the optical fiber ribbon 42 is formed by combining at least two optical fibers, and the optical fibers are multimode optical fibers or single-mode optical fibers.
The application relates to a central beam tube type optical fiber ribbon optical cable, which is characterized in that: the joint of the supporting strip 414 and the upper protective cover body 411 is provided with a tearing opening 416 for rapidly removing the supporting strip 414 and combining two adjacent cavities 45 to form a larger cavity.
Further, the central beam tube type optical fiber ribbon cable of the application is characterized in that: a reinforcement member is further disposed in the top block 31 to improve the tensile property of the optical cable.
The application has the following beneficial effects:
1. The inner layer protection member 3 is inserted into the outer layer protection member 2 to form double-layer protection, thereby improving the protection of the communication member 4.
2. The inner layer protection part 3 and the outer layer protection part 2 can be detached, so that the communication part 4 is convenient to take, and the inner layer protection part 3 and the outer layer protection part 2 do not need to be damaged, so that the inner layer protection part 3 and the outer layer protection part 2 can be reused, and materials are saved.
3. A gap is formed between the inner protective member 3 and the outer protective member 2, so that the shock resistance of the optical cable can be improved.
4. The inner layer protection part 3 and the outer layer protection part 2 are clamped into corresponding included angles between the top block 31 and adjacent inner layer protection part main bodies 32 on two sides of the top block through the first limiting block 22, so that the inner layer protection part 3 and the outer layer protection part 2 are fixed, fixing by yarn binding and the like is not needed, and materials are saved and convenience is achieved.
5. The inner layer protection member 3 is provided with a second access opening 34 for facilitating access to the communication member 4 from the second access opening 34.
6. Multiple layers of cavities 45 can be formed up and down to hold ribbons 42 to prevent optical fibers of different types from being mixed.
7. The space 45 may be divided into two small spaces by the partition member 44 to increase the accommodating amount of the optical fiber ribbons, and the large-core number of the optical fiber ribbons 42 may be placed in the space 45, and the small-core number of the optical fiber ribbons 42 may be placed in the small space.
8. Adjacent two layers of cavities 45 are fixed by a protective cover 46, and can form a whole.
9. The upper protective cover 41, the lower protective cover 43 and the protective cover 46 are detachable, so that the optical fiber ribbon can be conveniently taken out, and the optical fiber ribbon can be reused, thereby saving materials.
10. The upper protective cover 41, lower protective cover 43, and protective cover 46 enhance the protection of the ribbon.
11. The support strip 414 is provided with a tearing opening 416, so that the support strip 414 can be removed quickly, and two adjacent cavities 45 are combined to form a larger cavity.
The above-described embodiments are only preferred embodiments of the present invention, and should not be construed as limiting the present invention. The protection scope of the present invention is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this invention are also within the scope of the invention.
Claims (9)
1. A central beam tube type optical fiber ribbon cable having an outer sheath (1) and a communication member (4), the outer sheath (1) being located outside the communication member (4), characterized in that: a central beam tube is arranged between the outer protective layer (1) and the communication part (4), the central beam tube is composed of an outer protective part (2) and an inner protective part (3), the outer protective part (2) is composed of five outer protective part main bodies (23) with the same length and two first limiting blocks (22), the five outer protective part main bodies (23) are connected end to end in the same cross section, a regular hexagon frame with one edge missing at the upper end is formed, a first inlet and outlet (21) is arranged at an opening, a first containing cavity (24) is formed between the five outer protective part main bodies (23), one ends of the two first limiting blocks (22) are respectively connected with the end part of one outer protective part main body (23) corresponding to the first inlet and outlet (21), an included angle between the first limiting block (22) and the outer protective part main body (23) connected with the first limiting block is more than or equal to 60 degrees and less than 90 degrees, and the two first limiting blocks (22) are positioned in the first containing cavity (24); the inner layer protection component (3) is composed of five inner layer protection component bodies (32), two second limiting blocks (35) and a top block (31), the five inner layer protection component bodies (32) are connected end to end, are in a regular hexagon frame with one side missing at the lower end, the opening is a second inlet and outlet (34), a second containing cavity (33) is formed between the five inner layer protection component bodies (32), the two second limiting blocks (35) are respectively connected with the end parts of one corresponding inner layer protection component body (32) of the second inlet and outlet (34), the top block (31) is trapezoid, one shorter bottom edge of the trapezoid is connected with the outer wall of one inner layer protection component body (32) right opposite to the second inlet and outlet (34), the length of one shorter bottom edge of the trapezoid is the same as that of the inner layer protection component body (32), the five inner layer protection component bodies (32) are positioned in the first containing cavity (24), the other end of the first limiting block (22) is abutted into the top block (31) and the inner layer protection component bodies (32) adjacent to the two sides of the top block (31) to form a corresponding inner layer protection component (4), the two communication layers (3) are positioned at a small included angle, the two communication layers (4) are formed between the two communication protection components (3), at least two optical fiber ribbons are stacked in the communication component (4);
The communication component (4) is composed of an upper protective cover (41), a lower protective cover (43) and a plurality of optical fiber ribbon assemblies, the upper protective cover (41) is composed of an upper protective cover main body (411) and at least three supporting strips (414), the supporting strips (414) are distributed below the upper protective cover main body (411) at intervals in the same cross section, the upper ends of the supporting strips (414) are connected with the lower wall of the upper protective cover main body (411), the lower protective cover (43) is composed of a lower protective cover main body (431), first inserting grooves (432) with the same quantity of the supporting strips (414) are formed in the upper wall of the lower protective cover main body (431) at intervals, the supporting strips (414) are inserted into the corresponding first inserting grooves (432), a containing cavity (45) is formed between every two adjacent supporting strips (414), and the optical fiber ribbon assemblies are arranged in the containing cavity (45) and are formed by stacking at least two optical fiber ribbons.
2. A central beam tube type optical fiber ribbon cable having an outer sheath (1) and a communication member (4), the outer sheath (1) being located outside the communication member (4), characterized in that: a central beam tube is arranged between the outer protective layer (1) and the communication part (4), the central beam tube is composed of an outer protective part (2) and an inner protective part (3), the outer protective part (2) is composed of five outer protective part main bodies (23) with the same length and two first limiting blocks (22), the five outer protective part main bodies (23) are connected end to end in the same cross section, a regular hexagon frame with one edge missing at the upper end is formed, a first inlet and outlet (21) is arranged at an opening, a first containing cavity (24) is formed between the five outer protective part main bodies (23), one ends of the two first limiting blocks (22) are respectively connected with the end part of one outer protective part main body (23) corresponding to the first inlet and outlet (21), an included angle between the first limiting block (22) and the outer protective part main body (23) connected with the first limiting block is more than or equal to 60 degrees and less than 90 degrees, and the two first limiting blocks (22) are positioned in the first containing cavity (24); the inner layer protection component (3) is composed of five inner layer protection component bodies (32), two second limiting blocks (35) and a top block (31), the five inner layer protection component bodies (32) are connected end to end, are in a regular hexagon frame with one side missing at the lower end, the opening is a second inlet and outlet (34), a second containing cavity (33) is formed between the five inner layer protection component bodies (32), the two second limiting blocks (35) are respectively connected with the end parts of one corresponding inner layer protection component body (32) of the second inlet and outlet (34), the top block (31) is trapezoid, one shorter bottom edge of the trapezoid is connected with the outer wall of one inner layer protection component body (32) right opposite to the second inlet and outlet (34), the length of one shorter bottom edge of the trapezoid is the same as that of the inner layer protection component body (32), the five inner layer protection component bodies (32) are positioned in the first containing cavity (24), the other end of the first limiting block (22) is abutted into the top block (31) and the inner layer protection component bodies (32) adjacent to the two sides of the top block (31) to form a corresponding inner layer protection component (4), the two communication layers (3) are positioned at a small included angle, the two communication layers (4) are formed between the two communication protection components (3), at least two optical fiber ribbons are stacked in the communication component (4);
The communication part (4) is composed of at least two upper protective covers (41), at least one middle protective cover (46), one lower protective cover (43) and a plurality of optical fiber ribbon assemblies; the upper protective cover (41) is composed of an upper protective cover main body (411) and at least three supporting bars (414), the supporting bars (414) are distributed below the upper protective cover main body (411) at intervals in the same cross section, the upper ends of the supporting bars (414) are connected with the lower wall of the upper protective cover main body (411), a group of jacks (413) are formed in the upper wall of the upper protective cover main body (411) between two adjacent supporting bars (414) along the length direction of the upper protective cover main body (411), and the jacks (413) are distributed at intervals; the lower protective cover (43) is composed of a lower protective cover main body (431), a plurality of first inserting grooves (432) are formed in the upper wall of the lower protective cover main body (431) at intervals, the number of the first inserting grooves (432) is the same as that of the supporting bars (414) of the upper protective cover (41) positioned at the lowest position, the supporting bars (414) of the upper protective cover (41) positioned at the lowest position are inserted into the corresponding first inserting grooves (432) of the lower protective cover (43), and a containing cavity (45) is formed between every two adjacent supporting bars (414); the middle protection cover (46) is composed of a middle protection cover main body (461) and at least one row of second isolation strips (463), a plurality of second inserting grooves (462) are formed in the upper wall of the middle protection cover main body (461) at intervals, the number of the second inserting grooves (462) is the same as that of supporting strips (414) which are positioned above the middle protection cover (46) and are inserted with the upper protection cover (41), and the second isolation strips (463) are connected to the lower wall of the middle protection cover main body (461); the communication component (4) is also provided with at least one spacing component (44), the spacing component (44) is composed of a connecting component (441) and a row of first isolation strips (442), and the upper end of each first isolation strip (442) is connected with the lower wall of the connecting component (441) along the length direction of the connecting component (441); from bottom to top, the second isolation strip (463) of well protective cover (46) is pegged graft with the corresponding jack (413) of adjacent upper protective cover (41) of below, second isolation strip (463) separates two little appearance chambeies with corresponding appearance chambeies (45), the second grafting groove (462) of well protective cover (46) is pegged graft with the corresponding support bar (414) of adjacent upper protective cover (41), first isolation strip (442) is pegged graft with the corresponding jack (413) of upper protective cover (41) of the upper strata, first grafting groove (432) separates two little appearance chambeies with corresponding appearance chambeies (45), little appearance chambeies are equipped with a fiber ribbon assembly.
3. A central beam tube type optical fiber ribbon cable according to claim 1, wherein: two waists of the trapezoid are respectively attached to corresponding first limiting blocks (22), and the other ends of the two first limiting blocks (22) are respectively abutted to corresponding inner layer protection component main bodies (32) adjacent to two sides of the top block (31).
4. A central beam tube type optical fiber ribbon cable according to claim 3, wherein: the communication component (4) is further provided with at least one spacing component (44), the spacing component (44) is composed of a connecting component (441) and a row of first isolation strips (442), the upper end of each first isolation strip (442) is connected with the lower wall of the connecting component (441) along the length direction of the connecting component (441), a group of jacks (413) are formed in the upper wall of the upper protective cover main body (411) between two adjacent support strips (414) along the length direction of the upper protective cover main body (411), the jacks (413) are distributed at intervals, the first isolation strips (442) are spliced with the corresponding jacks (413), the first splicing grooves (432) divide the corresponding accommodating cavity (45) into two small accommodating cavities, an optical fiber ribbon assembly is arranged in each small accommodating cavity, and the distance between the lower end of each first isolation strip (442) and the upper wall of the lower protective cover (43) is smaller than the thickness of the optical fiber ribbon (42).
5. A central beam tube type optical fiber ribbon cable according to claim 2 or claim 3 or claim 4, wherein: the joint of the supporting strip (414) and the upper protective cover main body (411) is provided with a tearing opening (416).
6. A central beam tube type optical fiber ribbon cable according to claim 5, wherein: and a reinforcing piece is further arranged in the top block (31).
7. A central beam tube type optical fiber ribbon cable according to claim 6, wherein: the upper protective cover (41) and the lower protective cover (43) are made of polybutylene terephthalate or modified polypropylene.
8. A central beam tube type optical fiber ribbon cable according to claim 7, wherein: the outer layer protection part (2) and the inner layer protection part (3) are made of high-density polyethylene.
9. A central beam tube type optical fiber ribbon cable according to claim 8, wherein: the optical fiber ribbon (42) is formed by combining at least two optical fibers, and the optical fibers are multimode optical fibers or single-mode optical fibers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410185683.6A CN117741884B (en) | 2024-02-20 | 2024-02-20 | Central beam tube type optical fiber ribbon cable |
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| CN202410185683.6A CN117741884B (en) | 2024-02-20 | 2024-02-20 | Central beam tube type optical fiber ribbon cable |
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| CN117741884B true CN117741884B (en) | 2024-04-26 |
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| CN117741884A (en) | 2024-03-22 |
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