CN220872723U - High flame retardant buried loose sleeve layer stranded optical cable - Google Patents
High flame retardant buried loose sleeve layer stranded optical cable Download PDFInfo
- Publication number
- CN220872723U CN220872723U CN202322739883.5U CN202322739883U CN220872723U CN 220872723 U CN220872723 U CN 220872723U CN 202322739883 U CN202322739883 U CN 202322739883U CN 220872723 U CN220872723 U CN 220872723U
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- Prior art keywords
- buried
- loose
- optical cable
- retardant
- flame
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- 230000003287 optical effect Effects 0.000 title claims abstract description 55
- 239000003063 flame retardant Substances 0.000 title claims abstract description 38
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 238000005192 partition Methods 0.000 claims abstract description 22
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 15
- 229920003023 plastic Polymers 0.000 claims abstract description 15
- 239000013307 optical fiber Substances 0.000 claims description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 8
- -1 polyethylene Polymers 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 239000000126 substance Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract 1
- 238000005253 cladding Methods 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 238000010008 shearing Methods 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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- Communication Cables (AREA)
Abstract
The utility model provides a high flame-retardant buried loose sleeve layer stranded optical cable, which relates to the technical field of flame-retardant optical cables and comprises the following components: comprising the following steps: the cable core filling device comprises a round pipe and a cable core filling material, wherein a plurality of partition boards are uniformly and fixedly connected to the outer side of the round pipe, and wire units are arranged on two sides of each partition board. According to the utility model, the wire units are limited through the cooperation between the round pipe and the partition board, when the high-flame-retardant buried loose-sleeve layer stranded optical cable is produced, a plurality of wire units are firstly placed in the limiting clamping groove formed between the round pipe and the partition board, then the aluminum-plastic composite belt is coated on the outer side of the partition board, and the filling equipment fills the cable core filler into the limiting clamping groove formed between the round pipe and the partition board, so that the wire units are uniformly distributed in the high-flame-retardant buried loose-sleeve layer stranded optical cable, and meanwhile, the cable core filler can completely and uniformly cover the wire units, so that the high-flame-retardant buried loose-sleeve layer stranded optical cable has stable physical and chemical properties.
Description
Technical Field
The utility model relates to the technical field of flame-retardant optical cables, in particular to a high-flame-retardance buried loose sleeve layer stranded optical cable.
Background
In consideration of the influence of the environment, workers can adopt different laying methods when laying the optical cables, the optical cables can be divided into different types according to different laying modes, and common optical cables can be divided into pipeline optical cables, direct-buried optical cables, aerial optical cables and underwater optical cables, and the optical cables have different physical properties and chemical properties for adapting to the use environment.
In the prior art, in the production process of the existing optical cable, loose tubes and optical fibers coated by the loose tubes are stacked at the bottom end of the inside of the optical cable, when filling with cable core fillers, the cable core fillers extrude the loose tubes and the optical fibers coated by the loose tubes at the bottom end of the inside of the optical cable, so that the optical fibers are unevenly distributed, the physical and chemical properties of different positions of the existing optical cable are different, and the physical and chemical properties of the whole optical cable are affected.
Disclosure of utility model
The utility model mainly provides a high-flame-retardance buried loose sleeve layer stranded optical cable with stable physical and chemical properties.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: a high flame retardant buried loose tube layer twisted optical cable comprising: pipe and cable core filler, the outside of pipe evenly fixedly connected with a plurality of baffle, a plurality of the both sides of baffle are provided with wire unit, and a plurality of the outside cladding of baffle has the compound area of plastic-aluminum, the cable core filler is filled between baffle and wire unit, the outside cladding of the compound area of plastic-aluminum has the polyethylene inner sheath, the outside cladding of polyethylene inner sheath has the compound area of plastic-steel, the outside cladding of the compound area of plastic-steel has outer protective sheath, the outside cladding of outer protective sheath has the polyolefin sheath, and the spacing draw-in groove that constitutes between pipe and the baffle can be spacing to wire unit, and when producing this high fire-retardant loose layer hank cable of burying, place a plurality of wire unit inside the spacing draw-in groove that constitutes between pipe and baffle earlier, the inside cladding plastic-aluminum compound area of spacing draw-in groove that constitutes between baffle again at filling equipment for wire unit evenly distributes in the inside of this high fire-retardant loose layer hank cable of burying, and cable core filler can be complete evenly cladding wire unit, makes this high fire-retardant loose layer hank cable have the fire-retardant performance of burying.
Preferably, the center of the round tube is fixedly connected with a center reinforcing member, the center reinforcing member has the main function of combining and protecting with the outer reinforcing member, the strength of the high-flame-retardant buried loose-sleeve layer-stranded optical cable is improved, and the high-flame-retardant buried loose-sleeve layer-stranded optical cable cannot be broken easily when being subjected to external shearing force.
Preferably, the wire unit includes a loose tube, a plurality of optical fibers are disposed in the loose tube, a fiber paste is filled between the loose tube and the optical fibers, the loose tube is mainly used for loosely placing the optical fibers, protecting the optical fibers from internal stress and external side pressure, and the fiber paste is mainly used for preventing moisture erosion in air and relieving external influence on mechanical forces such as vibration, impact and bending of the optical fibers.
Preferably, the inside of outer protective sheath evenly fixedly connected with a plurality of outer reinforcement, the main role of outer reinforcement is to make up the protection with central reinforcement, improves the intensity of this high fire-retardant loose cover layer hank type optical cable of burying, can not take place the rupture easily when this high fire-retardant loose cover layer hank type optical cable of burying receives external shearing force.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. According to the utility model, the wire units are limited through the cooperation between the round pipe and the partition board, when the high-flame-retardant buried loose-sleeve layer stranded optical cable is produced, a plurality of wire units are firstly placed in the limiting clamping groove formed between the round pipe and the partition board, then the aluminum-plastic composite belt is coated on the outer side of the partition board, and the filling equipment fills the cable core filler into the limiting clamping groove formed between the round pipe and the partition board, so that the wire units are uniformly distributed in the high-flame-retardant buried loose-sleeve layer stranded optical cable, and meanwhile, the cable core filler can completely and uniformly cover the wire units, so that the high-flame-retardant buried loose-sleeve layer stranded optical cable has stable physical and chemical properties.
2. According to the utility model, the strength of the high-flame-retardance buried loose-sleeve layer-stranded optical cable is improved through the double-layer protection effect of the central reinforcing piece and the outer reinforcing piece, and the high-flame-retardance buried loose-sleeve layer-stranded optical cable cannot be easily broken when being subjected to external shearing force, so that the impact resistance of the high-flame-retardance buried loose-sleeve layer-stranded optical cable is improved.
Drawings
Fig. 1 is a schematic perspective view of a high flame retardant buried loose layer twisted optical cable according to the present utility model;
FIG. 2 is a schematic diagram showing the connection relationship between a round tube and a partition plate in a high flame retardant buried loose tube layer twisted optical cable;
Fig. 3 is a cross-sectional view of a buried loose tube layer twisted optical cable according to the present utility model.
Legend description: 1. a round tube; 11. a partition plate; 12. a central reinforcement; 2. a wire unit; 21. a loose tube; 22. an optical fiber; 23. a fiber paste; 3. an aluminum-plastic composite belt; 4. a core filler; 5. a polyethylene inner sheath; 6. steel-plastic composite belt; 7. an outer protective sleeve; 71. an outer layer reinforcement; 8. a polyolefin sheath.
Detailed Description
In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.
Referring to fig. 1-3, the present utility model provides a technical solution: a high flame retardant buried loose tube layer twisted optical cable comprising: the cable core filler 4 is filled between the partition plate 11 and the wire unit 2, the outer side of the aluminum plastic composite belt 3 is coated on the outer side of the partition plate 11, the polyethylene inner sheath 5 is coated on the outer side of the aluminum plastic composite belt 3, the steel plastic composite belt 6 is coated on the outer side of the polyethylene inner sheath 5, the outer protective sleeve 7 is coated on the outer side of the steel plastic composite belt 6, the polyolefin sheath 8 is coated on the outer side of the outer protective sleeve 7, the wire unit 2 can be limited by a limiting clamping groove formed between the round pipe 1 and the partition plate 11, when the high-flame-retardant buried loose-sleeve layer twisted optical cable is produced, the wire unit 2 is firstly placed inside the limiting clamping groove formed between the round pipe 1 and the partition plate 11, and then the aluminum plastic composite belt 3 is coated on the outer side of the partition plate 11, the filling equipment fills the cable core filler 4 into the limiting clamping groove formed between the round pipe 1 and the partition plate 11, so that the wire unit 2 is uniformly distributed inside the high-flame-retardant buried loose-sleeve layer twisted optical cable, and the cable unit 2 can be uniformly coated with the high-flame-retardant buried loose-sleeve layer twisted optical cable, and the cable can be stably coated with the high-flame-retardant buried-retardant layer twisted-layer optical cable.
As shown in fig. 2, a central reinforcing member 12 is fixedly connected to the center of the round tube 1, and the central reinforcing member 12 is mainly used for combined protection with an outer reinforcing member 71, so that the strength of the high-flame-retardance buried loose-tube layer twisted optical cable is improved, and the high-flame-retardance buried loose-tube layer twisted optical cable cannot be broken easily when being subjected to external shearing force.
As shown in fig. 3, the wire unit 2 includes a loose tube 21, a plurality of optical fibers 22 are disposed in the loose tube 21, a fiber paste 23 is filled between the loose tube 21 and the optical fibers 22, the loose tube 21 mainly serves to loosely hold the optical fibers 22, protect the optical fibers 22 from internal stress and external side pressure, and the fiber paste 23 mainly serves to prevent moisture erosion in air and to alleviate the influence of external mechanical forces such as vibration, impact, bending and the like on the optical fibers 22.
As shown in fig. 1, the outer protective sleeve 7 is uniformly and fixedly connected with a plurality of outer reinforcing members 71, and the outer reinforcing members 71 are mainly used for combined protection with the central reinforcing member 12, so that the strength of the high-flame-retardant buried loose-sleeve twisted-layer optical cable is improved, and the high-flame-retardant buried loose-sleeve twisted-layer optical cable cannot be easily broken when being subjected to external shearing force.
The application method and the working principle of the device are as follows: when the high-flame-retardant buried loose-tube layer-twisted optical cable is produced, a plurality of wire units 2 are firstly placed in a limiting clamping groove formed between a circular tube 1 and a partition plate 11, then an aluminum-plastic composite belt 3 is coated on the outer side of the partition plate 11, a filling device fills cable core filler 4 into the limiting clamping groove formed between the circular tube 1 and the partition plate 11, the wire units 2 are uniformly distributed in the high-flame-retardant buried loose-tube layer-twisted optical cable, then a polyethylene inner sheath 5, a steel-plastic composite belt 6, an outer protective sheath 7 and a polyolefin sheath 8 are sequentially coated on the outer side of the aluminum-plastic composite belt 3, the production process is completed, and when the high-flame-retardant buried loose-tube layer-twisted optical cable is subjected to external shearing force, a double-layer protection is provided for the high-flame-retardant buried loose-tube layer-twisted optical cable by a central reinforcing member 12 and an outer reinforcing member 71, wherein the polyolefin sheath 8 is high in thermal stability, so that the high-flame-retardant buried loose-tube layer-twisted optical cable has good flame resistance.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.
Claims (4)
1. A high flame retardant buried loose tube layer twisted optical cable comprising: pipe (1) and cable core filler (4), its characterized in that: the cable core filler (4) is filled between the partition plate (11) and the lead unit (2), the outer side of the aluminum-plastic composite belt (3) is coated with the polyethylene inner sheath (5), the outer side of the polyethylene inner sheath (5) is coated with the steel-plastic composite belt (6), the outer side of the steel-plastic composite belt (6) is coated with the outer layer protective sleeve (7), and the outer side of the outer layer protective sleeve (7) is coated with the polyolefin protective sleeve (8).
2. The high flame retardant buried loose tube layer twisted optical cable according to claim 1, wherein: the center of the round tube (1) is fixedly connected with a center reinforcing piece (12).
3. The high flame retardant buried loose tube layer twisted optical cable according to claim 1, wherein: the wire unit (2) comprises a loose tube (21), a plurality of optical fibers (22) are arranged in the loose tube (21), and fiber paste (23) is filled between the loose tube (21) and the optical fibers (22).
4. The high flame retardant buried loose tube layer twisted optical cable according to claim 1, wherein: the inside of the outer protective sleeve (7) is uniformly and fixedly connected with a plurality of outer reinforcing pieces (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322739883.5U CN220872723U (en) | 2023-10-11 | 2023-10-11 | High flame retardant buried loose sleeve layer stranded optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322739883.5U CN220872723U (en) | 2023-10-11 | 2023-10-11 | High flame retardant buried loose sleeve layer stranded optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220872723U true CN220872723U (en) | 2024-04-30 |
Family
ID=90816378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322739883.5U Active CN220872723U (en) | 2023-10-11 | 2023-10-11 | High flame retardant buried loose sleeve layer stranded optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220872723U (en) |
-
2023
- 2023-10-11 CN CN202322739883.5U patent/CN220872723U/en active Active
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