CN219695522U - Pressure-resistant indoor optical cable - Google Patents
Pressure-resistant indoor optical cable Download PDFInfo
- Publication number
- CN219695522U CN219695522U CN202321008287.3U CN202321008287U CN219695522U CN 219695522 U CN219695522 U CN 219695522U CN 202321008287 U CN202321008287 U CN 202321008287U CN 219695522 U CN219695522 U CN 219695522U
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- China
- Prior art keywords
- optical fiber
- outer sheath
- pressure
- optical cable
- optical
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- 230000003287 optical effect Effects 0.000 title claims abstract description 40
- 239000013307 optical fiber Substances 0.000 claims abstract description 46
- 239000000178 monomer Substances 0.000 claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 18
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 14
- 229920000742 Cotton Polymers 0.000 claims description 6
- 239000003063 flame retardant Substances 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 6
- 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 4
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
The pressure-resistant indoor optical cable comprises an outer sheath and a cable core structure arranged in the outer sheath, wherein the cable core structure comprises a plurality of optical fiber monomers; an elastic member is wrapped outside each optical fiber monomer, and elastic filling members are arranged between the outer sheath and the optical fiber monomers and between the optical fiber monomers; meanwhile, a plurality of nonmetal reinforcing pieces are arranged in the outer sheath, and the nonmetal reinforcing pieces are arranged on the outer periphery side of the cable core structure. The utility model can effectively avoid the influence on the internal optical fiber when the optical cable is subjected to external pressure, ensures stable transmission of optical signals, and has the advantages of simple and compact structure, low cost and good flexibility.
Description
Technical Field
The utility model relates to an indoor optical cable, in particular to a pressure-resistant indoor optical cable, and belongs to the technical field of optical cables.
Background
Indoor fiber optic cables, as their name implies, are well known fiber optic cables deployed within buildings, primarily for use with communication equipment, computers, switches, end user equipment, etc. within the building to communicate information. Compared with an outdoor optical cable, the indoor optical cable has small tensile strength and poorer protective layer, but is lighter and more economical.
At present, the commonly used indoor optical cable structure generally adopts a combined structure of a tight sleeve, a nonmetal reinforcing piece and a low-smoke halogen-free flame-retardant polyolefin sheath, and the structure is small in size but weak in pressure resistance, when the structure is extruded, an optical fiber is easily affected to cause optical fiber faults, and the phenomenon of fiber breakage possibly occurs when the structure is serious.
The existing indoor optical cables with improved pressure resistance have the defects of complex structure and poor flexibility, for example, CN210742576U is an indoor optical cable with strong pressure resistance, the pressure resistance is realized by adopting a composite pressure resistance layer which is arranged on the outer side in a concentrated manner, the extrusion of foreign objects can be born only from the outer side in a single direction, the pressure resistance effect is general, the toughness of the optical cable is weakened, and the laying of a narrow and tortuous space is not facilitated. In addition, the indoor optical cable meets various requirements of building environment and laying conditions, and the defects of larger size or higher cost are unavoidable.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides the pressure-resistant indoor optical cable, which can effectively avoid the influence on the internal optical fiber when the optical cable is subjected to external pressure, ensure stable transmission of optical signals and has the advantages of simple and compact structure, low cost and good flexibility.
The technical scheme adopted for solving the technical problems is as follows:
the pressure-resistant indoor optical cable comprises an outer sheath and a cable core structure arranged in the outer sheath, wherein the cable core structure comprises a plurality of optical fiber monomers; an elastic member is wrapped outside each optical fiber monomer, and elastic filling members are arranged between the outer sheath and the optical fiber monomers and between the optical fiber monomers; meanwhile, a plurality of nonmetal reinforcing pieces are arranged in the outer sheath, and the nonmetal reinforcing pieces are arranged on the outer periphery side of the cable core structure.
Optionally, the optical fiber monomer mainly comprises an optical fiber and a tight sleeve arranged outside the optical fiber.
Optionally, the elastic member is a spring sleeved outside the tight sleeve.
Optionally, the elastic filling member is memory cotton filled between the optical fiber monomers, between the optical fiber monomers and the outer sheath, and between the outer sheath and the non-metal reinforcement.
Optionally, the nonmetallic reinforcing piece adopts an aramid fiber reinforcing core.
Optionally, the outer sheath is a low-smoke halogen-free flame-retardant polyolefin outer sheath.
With the help of the technical scheme, compared with the prior art, the pressure-resistant indoor optical cable provided by the utility model has at least the following advantages:
by arranging the outer sheath and the cable core structure as main structures, the structure is simple and compact, the use requirements of small size, low cost and convenient laying of the conventional indoor optical cable are met; the cable core structure with novel structure is further arranged, and the optical fiber monomer with the elastic component is arranged, the elastic filling component is arranged in the inner filling type structure, and the nonmetal reinforcing pieces are scattered and arranged, so that the compression-resistant protection capability of the optical cable is greatly improved, the good flexibility performance is kept, the influence on the inner optical fiber when the optical cable is subjected to external pressure is effectively avoided, and the stable transmission of optical signals is ensured.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic view showing the structure of an indoor pressure-resistant optical cable according to an embodiment of the present utility model.
The meaning of the reference signs in the figures indicates: 1-an outer sheath; 11-a low smoke halogen-free flame retardant polyolefin outer sheath; 2-a cable core structure; 21-optical fiber monomer; 211-optical fiber; 212-tightening the sleeve; 22-an elastic member; 221-a spring; 3-an elastic filler member; 31-memory cotton; 4-non-metallic reinforcement; 41-aramid fiber reinforced core.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
FIG. 1 is a schematic view showing a structure of a preferred embodiment of the present utility model, in which a pressure-resistant indoor optical cable includes an outer sheath 1 and a cable core structure 2 disposed in the outer sheath 1, the cable core structure 2 including a plurality of optical fiber units 21; an elastic member 22 is wrapped outside each optical fiber unit 21, and elastic filling members 3 are arranged between the outer sheath 1 and the optical fiber units 21 and between the optical fiber units 21; meanwhile, a plurality of non-metal reinforcements 4 are arranged in the outer sheath 1, and the non-metal reinforcements 4 are arranged on the outer periphery side of the cable core structure 2.
According to the pressure-resistant indoor optical cable, on the basis of not increasing the diameter of the original outer sheath 1, the elastic member 22 is arranged for each optical fiber monomer 21, and the elastic filling member is arranged in the gap inside the outer sheath 1, so that when the optical cable is extruded by external force, the elastic member 22 can provide outward force, meanwhile, the elastic filling member can reduce external stress, effective protection of each optical fiber monomer 21 inside is realized, the elastic member 22 and the elastic filling member also ensure the overall flexibility of the optical cable, and the optical cable is flexible and efficient to lay. The nonmetal reinforcing parts 4 which are arranged on the outer ring of the cable core structure 2 in a scattered way can improve the tensile property of the optical cable without affecting the maintenance of good flexibility.
As a further alternative implementation of the present embodiment, the optical fiber unit 21 is mainly composed of an optical fiber 211 and a tight sleeve 212 disposed outside the optical fiber 211. The tight sleeve 212 and the optical fiber 211 form a tight sleeve type optical fiber with a simple structure, which is more beneficial to the light weight, the miniaturization and the flexibility of the optical cable.
As a further alternative of this embodiment, the elastic member 22 is a spring 221 that is sleeved outside the tightening sleeve 212. The spring 221 can provide the expansion deformation in the axial direction of the optical fiber unit 21, and can provide the surrounding type support in the radial direction of the optical fiber unit 21, thereby playing a good protection function.
As a further alternative of this embodiment, the elastic filling member 3 is a memory cotton 31 filled between the optical fiber units 21, between the optical fiber units 21 and the outer sheath 1, and between the outer sheath and the 1 nonmetallic reinforcing pieces 4. The memory cotton 31 is convenient to obtain materials, low in price and has rebound resilience, the memory cotton 31 is filled among the optical fiber monomer 21, the outer sheath 1 and the nonmetal reinforcing piece 4, and the comprehensive, durable and recoverable flexible protection and flexible compression resistance are formed for each component, so that the whole optical cable has continuous flexibility and compression resistance.
As a further alternative of this embodiment, the nonmetallic reinforcing pieces 4 employ an aramid reinforcing core 41. The use of the aramid reinforcement core 41 can further improve the tensile properties of the cable.
As a further alternative of this example, the outer sheath 1 is a low smoke halogen-free flame retardant polyolefin outer sheath 11. The application of the low-smoke halogen-free flame-retardant polyolefin outer sheath 11 can further optimize the insulation performance of the optical cable, and is more environment-friendly and safer.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, but any simple modification and equivalent variation of the above embodiment according to the technical spirit of the present utility model falls within the scope of the present utility model.
Claims (6)
1. The pressure-resistant indoor optical cable comprises an outer sheath and a cable core structure arranged in the outer sheath, wherein the cable core structure comprises a plurality of optical fiber monomers; the method is characterized in that: an elastic member is wrapped outside each optical fiber monomer, and elastic filling members are arranged between the outer sheath and the optical fiber monomers and between the optical fiber monomers; meanwhile, a plurality of nonmetal reinforcing pieces are arranged in the outer sheath, and the nonmetal reinforcing pieces are arranged on the outer periphery side of the cable core structure.
2. The pressure-resistant indoor optical cable according to claim 1, wherein: the optical fiber monomer mainly comprises an optical fiber and a tight sleeve arranged outside the optical fiber.
3. The pressure-resistant indoor optical cable according to claim 2, wherein: the elastic component is the spring that the cover was established in tight sleeve outside.
4. A pressure-resistant indoor optical cable according to claim 3, wherein: the elastic filling member is memory cotton filled among the optical fiber monomers, between the optical fiber monomers and the outer sheath and between the outer sheath and the nonmetal reinforcing piece.
5. A pressure-resistant indoor optical cable according to claim 1 or 2 or 3 or 4, characterized in that: the nonmetallic reinforcing piece adopts an aramid fiber reinforcing core.
6. The pressure-resistant indoor optical cable according to claim 5, wherein: the outer sheath adopts a low-smoke halogen-free flame-retardant polyolefin outer sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321008287.3U CN219695522U (en) | 2023-04-24 | 2023-04-24 | Pressure-resistant indoor optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321008287.3U CN219695522U (en) | 2023-04-24 | 2023-04-24 | Pressure-resistant indoor optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219695522U true CN219695522U (en) | 2023-09-15 |
Family
ID=87968114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321008287.3U Active CN219695522U (en) | 2023-04-24 | 2023-04-24 | Pressure-resistant indoor optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219695522U (en) |
-
2023
- 2023-04-24 CN CN202321008287.3U patent/CN219695522U/en active Active
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