CN220872722U - High fire-retardant loose cover layer stranded optical cable - Google Patents
High fire-retardant loose cover layer stranded optical cable Download PDFInfo
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- CN220872722U CN220872722U CN202322734174.8U CN202322734174U CN220872722U CN 220872722 U CN220872722 U CN 220872722U CN 202322734174 U CN202322734174 U CN 202322734174U CN 220872722 U CN220872722 U CN 220872722U
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- Prior art keywords
- optical fibers
- flame retardant
- cable
- polyethylene
- optical
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- 230000003287 optical effect Effects 0.000 title claims abstract description 30
- 239000003063 flame retardant Substances 0.000 title claims description 50
- 239000013307 optical fiber Substances 0.000 claims abstract description 70
- 239000004698 Polyethylene Substances 0.000 claims abstract description 34
- -1 polyethylene Polymers 0.000 claims abstract description 34
- 229920000573 polyethylene Polymers 0.000 claims abstract description 34
- 239000000945 filler Substances 0.000 claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 22
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 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 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims description 16
- 230000002787 reinforcement Effects 0.000 claims description 11
- 239000006071 cream Substances 0.000 claims description 7
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims 2
- 235000011613 Pinus brutia Nutrition 0.000 claims 2
- 241000018646 Pinus brutia Species 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 24
- 229920003023 plastic Polymers 0.000 abstract description 15
- 239000004033 plastic Substances 0.000 abstract description 15
- 239000002131 composite material Substances 0.000 abstract description 13
- 230000002035 prolonged effect Effects 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 238000005253 cladding Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 3
- 238000012999 compression bending Methods 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229940085805 fiberall Drugs 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a high-flame-retardance loose layer stranded optical cable, which relates to the technical field of optical cables and comprises a polyethylene outer sheath, a central reinforcing piece and a plurality of groups of optical fibers, wherein a polyethylene inner sheath is fixedly arranged on the inner wall of the polyethylene outer sheath, and a steel-plastic composite belt is fixedly arranged on the inner wall of the polyethylene inner sheath. The central reinforcing piece, the cable core filler and the fiber paste are arranged, so that the fixation effect on bundled optical fibers is achieved, the problems of displacement, wire detachment and the like of the optical fibers in long-distance wire pulling are effectively avoided, the compression resistance and fracture resistance of the optical fibers are improved, the service life of the optical fibers is prolonged, the cable core filler and the fiber paste have good water resistance, and further good dampproof effects on the optical fibers are achieved.
Description
Technical Field
The utility model relates to the technical field of optical cables, in particular to a high-flame-retardance loose-sleeve layer-stranded optical cable.
Background
Plastic optical cables are very important communication devices for transmitting optical signals, however, as the service time increases, the plastic optical cables are affected by various factors such as temperature, humidity, ultraviolet rays, etc., resulting in gradual degradation of their performance, wherein the optical cables are extremely susceptible to burning upon contact with external fire sources in an environment of high outdoor temperature for a long period of time.
However, in the prior art, when the optical cable is in a long-term outdoor high-temperature environment and is in contact with an external fire source, the optical cable is extremely easy to burn, the traditional optical cable can cause brittle fracture of the optical fiber due to the burning damage of elements, so that the signal transmission is interrupted, the effectiveness of a safety guarantee system can be influenced, the use of telephones, closed-circuit televisions and the like can be caused to be faulty, and the implementation of rescue after the fire disaster occurs can be greatly influenced.
Disclosure of utility model
The utility model mainly provides a high-flame-retardance loose-sleeve layer-stranded optical cable which is high in flame retardance, not easy to break and long in service life.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a high fire-retardant loose layer stranded optical cable, includes polyethylene oversheath, center reinforcement and multiunit optic fibre, the inner wall fixed mounting of polyethylene oversheath has the polyethylene inner sheath, the inner wall fixed mounting of polyethylene inner sheath has the steel plastic composite tape, the inside packing of steel plastic composite tape has the cable core filler, the outside of center reinforcement is provided with five group's loose tube, five groups the inside of loose tube all is filled with fine cream, at first colors optic fibre, then carries out the merging or bunching to multiunit optic fibre, carries out the secondary cladding and twines to the optic fibre of bunching again, then all coats the loose tube at the outer wall of every bundle optic fibre, packs fine cream in the inside of loose tube, fixes the multiunit loose tube at the outer wall of center reinforcement, again with the cladding of steel plastic composite tape at the outer wall of loose tube, to the filler of filling cable core filler therein, through being provided with center reinforcement, cable core filler and fine cream, plays fixed action to the optic fibre of bunching, effectively avoids taking place displacement line scheduling problem when acting as go-between to the fine, and having promoted the bending resistance ability, the extension optic fibre has also has good fire-retardant effect to take place well as the fire-retardant effect to the well as the fire-retardant cable, has the good fire-retardant effect to have the well as the fire-retardant cable has the life to have the good fire-retardant effect to have and the life to the fire-resistant well as the life to the old and has the fire-resistant effect to the optic cable.
Preferably, the multiunit optical fiber sets up respectively in five loose tubes's inside, multiunit the outer wall of optical fiber all cladding has fine cream, through being provided with fine cream, play fixed action to bundled optical fiber, effectively avoid the optical fiber to take place displacement when long distance is acted as go-between and take place problem such as line, and the resistance to compression bending ability of optical fiber has been promoted, the life of optical fiber has been prolonged, and fine cream has good water resistance, and then play good dampproofing effect to optical fiber, because loose tube itself has good flame retardant efficiency, play good flame retardant efficiency to the optical cable of long-term use, avoid old optical cable to take place to burn under high temperature environment, make fire hazard area also can normally erect.
Preferably, the cable core filler sets up five groups loose tube's outer wall, the cable core filler sets up the outer wall at central reinforcement, through being provided with central reinforcement, plays the fixed action to the bunched optical fiber to the cable core filler has good water resistance, and then plays good dampproofing effect to the optical fiber, because loose tube itself has good flame retardant efficiency, plays good flame retardant efficiency to the optical cable of long-term use.
Preferably, the inside of polyethylene inner sheath is filled with halogen-free flame retardant, the inside of polyethylene inner sheath is provided with multiunit protection steel wire, at the outer wall cladding polyethylene inner sheath of steel-plastic composite tape, the outer wall cladding polyethylene oversheath of polyethylene inner sheath, play fixed action through setting up multiunit protection steel wire and halogen-free flame retardant, play fixed action to bundled optical fiber, effectively avoid the optical fiber to take place displacement off-line scheduling problem when long distance is acted as go-between, and the resistance to compression bending ability of optical fiber has been promoted, the life of optical fiber has been prolonged, play flame retardant effect to the optical fiber when playing fixed action to the protection steel wire through filling halogen-free flame retardant, avoid the optical fiber to receive external influence or inside influence to take place burning.
Preferably, the plurality of groups of the protection steel wires are arranged in the halogen-free flame retardant, and the halogen-free flame retardant is filled, so that the protection steel wires are fixed, and meanwhile, the protection steel wires have a flame retardant effect on the optical fibers, and the optical fibers are prevented from being burnt due to external influences or internal influences.
Compared with the prior art, the utility model has the advantages and positive effects that:
1. According to the utility model, the central reinforcing piece, the cable core filler and the fiber paste are arranged to fix the bundled optical fibers, so that the problems of displacement, wire dislocation and the like of the optical fibers in long-distance wire pulling are effectively avoided, the compression resistance and fracture resistance of the optical fibers are improved, the service life of the optical fibers is prolonged, the cable core filler and the fiber paste have good water resistance, and further, a good moisture-proof effect is achieved on the optical fibers, and the loose tube has good flame retardant effect, so that the optical cables used for a long time have good flame retardant effect, the old optical cables are prevented from burning in a high-temperature environment, and the fire hazard area can be normally erected.
2. According to the utility model, the plurality of groups of protection steel wires and the halogen-free flame retardant are arranged to fix the bundled optical fibers, so that the problems of displacement and wire detachment of the optical fibers during long-distance wire drawing are effectively avoided, the compression resistance and fracture resistance of the optical fibers are improved, the service life of the optical fibers is prolonged, the halogen-free flame retardant is filled to fix the protection steel wires, and meanwhile, the optical fibers are flame-retardant to avoid the optical fibers from being burnt under external influence or internal influence.
Drawings
FIG. 1 is a cross-sectional view of a high flame retardant loose tube layer twisted optical cable according to the present utility model;
FIG. 2 is an enlarged schematic view of the portion A of FIG. 1 of a high flame retardant loose tube layer twisted optical cable according to the present utility model;
Fig. 3 is an enlarged schematic view of the structure of an optical fiber of a high flame retardant loose tube layer twisted optical cable according to the present utility model.
Legend description: 1. a polyethylene outer sheath; 2. steel-plastic composite belt; 3. a core filler; 4. a central reinforcement; 5. a loose tube; 6. an optical fiber; 7. a fiber paste; 8. a polyethylene inner sheath; 9. protecting the steel wire; 10. halogen-free flame retardant.
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.
Example 1
As shown in fig. 1 to 3, the present utility model provides a high flame retardant loose tube layer twisted optical cable, comprising a polyethylene outer jacket 1, a central reinforcement 4 and a plurality of groups of optical fibers 6, wherein a polyethylene inner jacket 8 is fixedly installed on the inner wall of the polyethylene outer jacket 1, a steel-plastic composite tape 2 is fixedly installed on the inner wall of the polyethylene inner jacket 8, a cable core filler 3 is filled in the steel-plastic composite tape 2, five groups of loose tubes 5 are arranged on the outer side of the central reinforcement 4, fiber paste 7 is filled in the five groups of loose tubes 5, the optical fibers 6 are firstly colored, then a plurality of groups of optical fibers 6 are combined or bundled, then the bundled optical fibers 6 are secondarily coated and twisted, then the loose tubes 5 are coated on the outer wall of each bundle of optical fibers 6, the fiber paste 7 is filled in the loose tubes 5, the multi-group loose tube 5 is fixed on the outer wall of the central reinforcing member 4, the steel-plastic composite belt 2 is wrapped on the outer wall of the loose tube 5, the cable core filler 3 is filled in the steel-plastic composite belt, the central reinforcing member 4, the cable core filler 3 and the fiber paste 7 are arranged, the fixation effect is achieved on the bundled optical fibers 6, the problems that the optical fibers 6 are displaced and off-line during long-distance stay wire and the like are effectively avoided, the compression resistance and fracture resistance of the optical fibers 6 are improved, the service life of the optical fibers 6 is prolonged, the cable core filler 3 and the fiber paste 7 have good water resistance, and further good dampproof effects are achieved on the optical fibers 6, and due to the good flame retardant effect of the loose tube 5, good flame retardant effects are achieved on optical cables used for a long time, the old optical cables are prevented from burning in a high-temperature environment, and the fire hazard area can be normally erected.
As shown in fig. 1-3, the optical fibers 6 are respectively arranged in the five groups of loose tubes 5, the outer walls of the optical fibers 6 are respectively coated with the fiber paste 7, and the optical fibers 6 are fixed by the aid of the fiber paste 7, so that the problems of displacement, wire dislocation and the like of the optical fibers 6 during long-distance wire pulling are effectively avoided, the compression-resistant and fracture-resistant capabilities of the optical fibers 6 are improved, the service life of the optical fibers 6 is prolonged, the fiber paste 7 has good water resistance, and further, a good damp-proof effect is achieved on the optical fibers 6, and due to the good flame-retardant effect of the loose tubes 5, the good flame-retardant effect is achieved on an optical cable used for a long time, the old optical cable is prevented from burning in a high-temperature environment, and the fire hazard area can be normally erected.
As shown in fig. 1-3, the cable core filler 3 is disposed on the outer walls of the five groups of loose tubes 5, the cable core filler 3 is disposed on the outer wall of the central reinforcing member 4, and by providing the central reinforcing member 4, the bundled optical fibers 6 are fixed, and the cable core filler 3 has good water resistance, so that a good damp-proof effect is achieved on the optical fibers 6, and since the loose tubes 5 have good flame-retardant effect, a good flame-retardant effect is achieved on the optical cable used for a long time.
As shown in fig. 1-3, the inside of the polyethylene inner sheath 8 is filled with a halogen-free flame retardant 10, a plurality of groups of protection steel wires 9 are arranged in the polyethylene inner sheath 8, the outer wall of the steel-plastic composite belt 2 is coated with the polyethylene inner sheath 8, the outer wall of the polyethylene inner sheath 8 is coated with the polyethylene outer sheath 1, the plurality of groups of protection steel wires 9 and the halogen-free flame retardant 10 are arranged to fix the bundled optical fibers 6, the problems that the optical fibers 6 are displaced and off-line during long-distance stay wire and the like are effectively avoided, the compression resistance and the folding resistance of the optical fibers 6 are improved, the service life of the optical fibers 6 is prolonged, the halogen-free flame retardant 10 is filled, the protection steel wires 9 are fixed, the optical fibers 6 are flame-retarded, and the optical fibers 6 are prevented from being influenced by the outside or from being burnt by the internal influence.
As shown in fig. 1-3, the plurality of groups of protection steel wires 9 are all arranged in the halogen-free flame retardant 10, and the halogen-free flame retardant 10 is filled, so that the protection steel wires 9 are fixed, and meanwhile, the protection steel wires have flame retardant effect on the optical fiber 6, and the optical fiber 6 is prevented from being burnt under external influence or internal influence.
The application method and the working principle of the device are as follows: firstly, coloring optical fibers 6, then combining or bundling a plurality of groups of optical fibers 6, then secondarily coating and twisting the bundled optical fibers 6, then coating loose tubes 5 on the outer wall of each bundle of optical fibers 6, filling fiber paste 7 in the loose tubes 5, fixing a plurality of groups of loose tubes 5 on the outer wall of a central reinforcing member 4, coating a steel-plastic composite belt 2 on the outer wall of the loose tubes 5, filling cable core filler 3 into the loose tubes, coating a polyethylene inner sheath 8 on the outer wall of the steel-plastic composite belt 2, and coating a polyethylene outer sheath 1 on the outer wall of the polyethylene inner sheath 8, wherein the polyethylene inner sheath 8 is filled with halogen-free flame retardant 10 and protective steel wires 9.
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 (5)
1. The utility model provides a high fire-retardant loose cover layer hank optical cable, includes polyethylene oversheath (1), center reinforcement (4) and multiunit optic fibre (6), its characterized in that: the inner wall fixed mounting of polyethylene oversheath (1) has polyethylene inner sheath (8), the inner wall fixed mounting of polyethylene inner sheath (8) has steel to mould compound area (2), the inside of steel to mould compound area (2) is filled with cable core filler (3), the outside of center reinforcement (4) is provided with five pine sleeve pipes (5), five groups the inside of pine sleeve pipe (5) all is filled with fine cream (7).
2. The high flame retardant loose tube lay cable of claim 1, wherein: the optical fibers (6) are respectively arranged in the five groups of loose tubes (5), and the outer walls of the optical fibers (6) are coated with fiber paste (7).
3. The high flame retardant loose tube lay cable of claim 1, wherein: the cable core filler (3) is arranged on the outer walls of the five groups of loose tubes (5), and the cable core filler (3) is arranged on the outer wall of the central reinforcing piece (4).
4. The high flame retardant loose tube lay cable of claim 1, wherein: the inside of polyethylene inner sheath (8) is filled with halogen-free flame retardant (10), the inside of polyethylene inner sheath (8) is provided with multiunit protection steel wire (9).
5. The high flame retardant loose tube lay cable of claim 4, wherein: the plurality of groups of the protection steel wires (9) are arranged in the halogen-free flame retardant (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322734174.8U CN220872722U (en) | 2023-10-11 | 2023-10-11 | High fire-retardant loose cover layer stranded optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322734174.8U CN220872722U (en) | 2023-10-11 | 2023-10-11 | High fire-retardant loose cover layer stranded optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220872722U true CN220872722U (en) | 2024-04-30 |
Family
ID=90820988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322734174.8U Active CN220872722U (en) | 2023-10-11 | 2023-10-11 | High fire-retardant loose cover layer stranded optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220872722U (en) |
-
2023
- 2023-10-11 CN CN202322734174.8U patent/CN220872722U/en active Active
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