Optical fiber communication composite cable
By alternately arranging fiber optic cable cores and communication cable cores in a non-standard frame and combining multiple waterproof designs, the problems of space waste and poor waterproof performance caused by laying fiber optic and communication cables separately are solved, achieving efficient and reliable signal transmission and waterproof effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-24
AI Technical Summary
In urban environments, laying fiber optic cables and communication cables separately leads to wasted space and poor waterproofing, affecting the stability and security of communication networks.
The fiber optic cable core and communication cable core are arranged alternately with irregular skeleton and cable core groove, combined with multiple waterproof designs, including waterproof medium, waterproof layer and waterproof coating, plus armor layer and sheath, to form a full cross-section water-blocking effect.
It improves laying efficiency, ensures the stability of signal transmission and the compactness of the cable, and enhances the reliability and waterproof performance of the cable in harsh environments.
Smart Images
Figure CN224036127U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to cable technical field, concretely relates to a kind of optical fiber communication composite cable. BACKGROUND
[0002] In urban environment, due to limited land resources, buildings are densely populated, underground pipelines, bridges, tunnels and other infrastructure are complex, so that the laying space of cable is greatly limited. However, the traditional optical fiber and communication cable are laid separately, this way not only occupies a large amount of valuable laying space, increases the engineering cost, but also will face many inconveniences when maintaining and upgrading.
[0003] In addition, the performance and life of the cable depend largely on its waterproof design. In urban environment, the cable may face rain erosion, humidity change, temperature change and other adverse factors, which can cause performance degradation and even communication interruption. Especially in the water-collecting areas such as underground pipelines and bridges, cables with poor waterproof performance are more likely to be damaged, which seriously affects the stability and security of the communication network.
[0004] Therefore, how to solve the problem of limited laying space while ensuring waterproof performance, so as to improve the adaptability and reliability of optical fiber cable in urban environment is the current urgent problem to be solved. SUMMARY
[0005] The utility model aims at providing a kind of optical fiber communication composite cable, solve the technical problem that optical fiber cable cannot simultaneously solve laying space limited and poor waterproof performance in prior art.
[0006] The utility model discloses a kind of optical fiber communication composite cable, comprising:
[0007] Special-shaped framework, outer periphery is equipped with a plurality of uniformly distributed cable core grooves;
[0008] Tensile member, is located in the axis position of the special-shaped framework;
[0009] Communication cable core, is arranged in a part of the cable core groove,
[0010] Optical fiber cable core, is arranged in another part of the cable core groove;
[0011] Waterproof medium, is filled in the interstitial region of the cable core groove;
[0012] Waterproof layer, is wrapped in the special-shaped framework outside;
[0013] Armoring layer, is wrapped in the waterproof layer outside;
[0014] Waterproof coating, is coated in the armoring layer outside;
[0015] an outer sheath wrapped outside the waterproof coating;
[0016] The communication cable core and the optical fiber cable core are arranged alternately around the central axis of the profiled framework.
[0017] The application combines the optical fiber and the communication cable by adopting the profiled framework and alternately arranging the optical fiber cable core and the communication cable core in the cable core groove, thereby avoiding the space waste of the traditional separate laying mode, improving the laying efficiency, ensuring the stability of signal transmission, improving the compactness of the cable, and constructing the multiple waterproof designs from the inside to the outside through the waterproof medium, the waterproof layer and the waterproof coating, so as to realize the full cross-section water blocking effect and guarantee the long-term reliability in harsh environments.
[0018] On the basis of the above technical scheme, the scheme of the application can also be improved as follows:
[0019] Preferably, it comprises:
[0020] an aluminum-plastic composite tape layer wrapped outside the waterproof layer;
[0021] an inner sheath wrapped outside the aluminum-plastic composite tape layer and located inside the armor layer; the adoption of the scheme provides metal shielding, mechanical protection, electrical insulation and additional protective barriers, realizes the radial waterproof effect, and optimizes the electrical performance of the cable together, thereby ensuring the stability and reliability of signal transmission.
[0022] Preferably, the inner sheath and the outer sheath are both polyethylene sheaths; the adoption of the scheme has the waterproof performance and realizes the radial water blocking effect.
[0023] Preferably, the tensile member is composed of 1*7 steel strands, and the steel strands are phosphorized steel strands; the adoption of the scheme can provide the tensile performance when the cable is vertically laid.
[0024] Preferably, the optical fiber cable core is horizontally packaged by a plurality of coated optical fibers and forms a flat ribbon structure; the adoption of the scheme significantly reduces the cross-sectional area of the cable, greatly saves the laying space, improves the overall bending performance and mechanical stability, can also disperse external force, reduces the risk of optical fiber fracture, and is suitable for high-density wiring, long-distance transmission and rapid construction scenarios.
[0025] Preferably, the communication cable core comprises two pairs of uniformly twisted insulated cores, and the insulated core comprises a conductor and an insulating layer wrapped outside the conductor; the adoption of the scheme utilizes the twisted structure of the two insulated cores to realize the synergistic optimization of signal transmission performance, mechanical stability and construction convenience.
[0026] Preferably, the armor layer is formed by galvanized steel wires wound in a spiral layer twisting manner; with this solution, efficient mechanical protection and environmental adaptability are provided.
[0027] Preferably, the waterproof medium and the waterproof coating each comprise a waterproof ointment; with this solution, a continuous and dense waterproof structure can be formed, thereby effectively preventing moisture penetration, and having fluidity to automatically fill newly formed gaps, realizing self-adaptive sealing, maintaining waterproof effect, and absorbing mechanical vibration and impact to protect the internal cable core from external damage.
[0028] Through the above technical solution, the utility model realizes following beneficial effects:
[0029] 1. The application combines optical fiber and communication cable by adopting a special-shaped framework and alternately arranging optical fiber cable cores and communication cable cores in the cable core groove, thereby avoiding space waste of the traditional separate laying mode, improving laying efficiency, ensuring signal transmission stability, improving cable compactness, and realizing full cross-section water blocking effect through multiple waterproof designs from the inside to the outside by the waterproof medium, the waterproof layer and the waterproof coating, thereby guaranteeing long-term reliability in harsh environments.
[0030] 2. The application provides metal shielding and mechanical protection by setting the aluminum-plastic composite tape layer, provides electrical insulation and an additional protective barrier by setting the inner sheath, realizes radial waterproofing, and optimizes the electrical performance of the cable together, thereby ensuring signal transmission stability and reliability. BRIEF DESCRIPTION OF DRAWINGS
[0031] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.
[0032] Figure 1 The structure diagram of the optical fiber communication composite cable described in the specific embodiments of the utility model;
[0033] Explanation of reference signs:
[0034] 1. Special-shaped framework; 101. Cable core groove; 2. Tensile member; 3. Communication cable core; 31. Insulated wire core; 311. Conductor; 312. Insulating layer; 4. Optical fiber cable core; 5. Waterproof medium; 6. Waterproof layer; 7. Aluminum-plastic composite tape layer; 8. Inner sheath; 9. Armor layer; 10. Waterproof coating; 11. Outer sheath. Specific embodiments
[0035] The embodiments of the technical scheme of the utility model will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and therefore only serve as examples, and cannot limit the protection scope of the utility model.
[0036] First of all, it needs to be pointed out that in the following description, some orientation words involved in the technical scheme of the utility model, such as the terms "horizontal", "inner", "outer" and the like, are all analogically used according to the meaning of the orientation of the normal structure in the optical fiber communication composite cable, and are only used for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0037] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be direct connection, or indirect connection through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0038] In order to better understand the above technical scheme, the above technical scheme will be described in detail below with reference to the drawings and specific embodiments of the specification.
[0039] Embodiment:
[0040] As shown in Figure 1 The utility model discloses a kind of optical fiber communication composite cables, can simultaneously solve the problem that laying space is limited and waterproof performance is not good, improve the adaptability and reliability of cable in urban environment, its specific structure includes: special-shaped framework 1, tensile member 2, communication cable core 3, optical fiber cable core 4, waterproof medium 5, waterproof layer 6, armored layer 9, waterproof coating 10 and outer sheath 11.
[0041] Special-shaped framework 1 is preferably made of high-density polyethylene material, and is integrally formed by special-shaped die extrusion, which is slightly hard after forming and has certain supporting property, can prevent optical fiber cable core 4 and communication cable core 3 from being extruded, and then affect the transmission performance of cable;And outer periphery is equipped with a plurality of evenly distributed cable core grooves 101, for realizing the integrated layout of optical fiber cable core 4 and communication cable core 3, to reduce the number of laid cable while not affecting information transmission, so that cable laying space and cost can be effectively reduced, and its evenly distributed setting effectively utilizes the cross-sectional area of cable, improves laying efficiency.
[0042] Specifically, the cable core groove 101 is designed in a rectangular shape, and the depth can be set as required, so that it can be used to place multiple layers of optical fiber cable cores 4 or communication cable cores 3, thereby improving the utilization rate of internal space and greatly reducing the outer diameter of the cable, facilitating cable laying.
[0043] Exemplarily, the cable core groove 101 is provided in four, and six layers of optical fiber cable cores 4 or two communication cable cores 3 are placed in one cable core groove 101; but not limited to this, no specific limitation is made.
[0044] The tensile member 2 is arranged at the position of the central axis of the profiled framework 1, and is used to enhance the tensile capacity of the cable by bearing axial tension, reduce the risk of mechanical damage during laying and use, and ensure long-term reliability.
[0045] The communication cable core 3 is arranged in a part of the cable core groove 101, and is responsible for the transmission of electrical signals.
[0046] The optical fiber cable core 4 is arranged in another part of the cable core groove 101, and is responsible for the transmission of optical signals.
[0047] The waterproof medium 5 is filled in the gap area of the cable core groove 101, so as to form a physical barrier to prevent water from penetrating into the cable core and leaking longitudinally in the cable core.
[0048] The waterproof layer 6 is wrapped outside the profiled framework 1, and is preferably formed by overlapping and tightly wrapping the waterproof tape. The waterproof tape expands when it comes into contact with water, and the tapes press against each other to form a water barrier layer, which is used to block external water from entering the cable core groove 101, thereby protecting the communication cable core 3 and the optical fiber cable core 4 from damage.
[0049] The armor layer 9 is wrapped outside the waterproof layer 6, which is used to provide tensile properties for the cable and prevent external mechanical properties from being lost.
[0050] The waterproof coating 10 is coated outside the armor layer 9 to form a corrosion and waterproof effect.
[0051] The outer sheath 11 is wrapped outside the waterproof coating 10, which serves as the outermost layer and has certain weather resistance and wear resistance.
[0052] Among them, the communication cable core 3 and the optical fiber cable core 4 are arranged alternately around the central axis of the profiled framework 1, so as to ensure the independence of signal transmission, and reduce electromagnetic interference through a compact structure.
[0053] The application combines the optical fiber and the communication cable by adopting the special-shaped skeleton 1 and alternately arranging the optical fiber cable core 4 and the communication cable core 3 in the cable core groove 101, thereby avoiding the space waste of the traditional separate laying mode, improving the laying efficiency, ensuring the stability of signal transmission, improving the compactness of the cable, and realizing the full cross-section water blocking effect by the multiple waterproof designs from the inside to the outside through the waterproof medium 5, the waterproof layer 6 and the waterproof coating 10, thereby guaranteeing the long-term reliability in harsh environments.
[0054] In some embodiments, as shown in Figure 1 , further comprising:
[0055] The aluminum-plastic composite tape layer 7 is longitudinally wrapped outside the waterproof layer 6 and forms a tubular structure by being shaped by a mold, so as to ensure the close fit between the aluminum-plastic composite tape layer 7 and the waterproof layer 6, thereby forming a continuous protective barrier, and the tubular structure improves the roundness of the cable and enhances the overall mechanical properties of the cable.
[0056] The inner sheath 8 is wrapped outside the aluminum-plastic composite tape layer 7 and located in the armor layer 9, and the inner sheath 8 softens the film of the outer layer of the aluminum-plastic composite tape at a high temperature in the extrusion process, so that the aluminum-plastic composite tape and the inner sheath 8 are adhered to each other, thereby enhancing the bonding force between the aluminum-plastic composite tape and the inner sheath 8, preventing the interlayer slippage or separation, and improving the overall structural stability.
[0057] Specifically, the aluminum layer in the aluminum-plastic composite tape layer 7 has good electrical conductivity, can effectively shield external electromagnetic interference, and protect the stability of signal transmission inside the cable; and can enhance the ability of the cable to resist external mechanical impact and protect the internal communication cable core 3 and the optical fiber cable core 4 from damage.
[0058] The aluminum-plastic composite tape layer 7 provides metal shielding and mechanical protection, the inner sheath 8 provides electrical insulation and an additional protective barrier, and realizes the radial waterproof effect, and the two cooperate with each other to optimize the electrical performance of the cable, thereby ensuring the stability and reliability of signal transmission.
[0059] On the basis of the above embodiments, the inner sheath 8 and the outer sheath 11 are both polyethylene sheaths, which adopt polyethylene sheath materials in accordance with GB / T15065, so as to realize the radial water blocking effect by the small gap between the molecules of the polyethylene material itself.
[0060] In some embodiments, as shown in Figure 1 , the tensile member 2 is composed of 1*7 steel strands, and the steel strands are phosphorized steel strands, which have a smooth surface and an effective Young's modulus not less than 170 GPa, and can provide tensile properties for the vertical laying of the cable.
[0061] In some embodiments, as shown in Figure 1As shown, the optical cable core 4 is horizontally encapsulated by a plurality of coated optical fibers, and forms a flat ribbon structure. The coating can protect the optical fibers from microbend loss, mechanical damage and environmental erosion, ensure stable transmission of optical signals, and the coating surface has a full-color color mark, which is convenient for construction personnel to distinguish by color.
[0062] Through the above arrangement, a flat ribbon structure is formed, which significantly reduces the cross-sectional area of the cable, greatly saves the laying space, and also improves the overall bending resistance and mechanical stability, and can disperse external force, reduce the risk of optical fiber fracture, and is suitable for high-density, long-distance transmission and rapid construction scenarios.
[0063] In some embodiments, as shown in FIG. 1, the communication cable core 3 includes two insulated wire cores 31 uniformly twisted into a pair, and the insulated wire core 31 includes a conductor 311 and an insulation layer 312 wrapped outside the conductor 311. Figure 1
[0064] Specifically, the conductor 311 adopts oxygen-free copper wire, and the elongation rate is not less than 20%, and the diameter tolerance of the conductor 311 is controlled within 1%, so as to prevent the average value of the resistance imbalance of the conductors 311 in the wire pair from being greater than 1.5%, and strictly ensure the quality of the conductors 311.
[0065] Specifically, the insulation layer 312 adopts high-purity polyethylene insulation material with good mechanical strength and electrical performance in accordance with the YD / T 760 standard, and the outer diameter tolerance of the insulated wire core 31 is controlled within ±0.02mm, so as to ensure that the electrical performance such as working capacitance and attenuation of the communication cable core 3 meets the requirements.
[0066] It should be noted that the twisted structure makes the electromagnetic fields of the two wire cores offset each other, thereby reducing the crosstalk between the wire pairs, and the symmetrical structure formed by the twisting helps to keep the characteristic impedance of the wire pair stable, reduce signal reflection, and make the cable core softer, facilitating bending and laying, and when stressed, the stress can be dispersed through the spiral structure, reducing the risk of conductor 311 fracture.
[0067] Through the above design of the communication cable core 3, the twisted structure of the two insulated wire cores 31 realizes the synergistic optimization of signal transmission performance, mechanical stability and construction convenience.
[0068] In some embodiments, the armor layer 9 is formed by galvanized steel wires wound in a spiral layer twisting manner, thereby providing efficient mechanical protection and environmental adaptability.
[0069] Specifically, the spiral layer twisting can disperse the radial pressure, improve the compressive strength and tensile strength of the armor layer 9, and can absorb impact energy to protect the internal cable core from external damage, and is suitable for direct-buried laying. While the galvanized steel wire has high corrosion resistance and weather resistance, and is suitable for long-term exposure in outdoor scenes.
[0070] In some embodiments, the waterproof medium 5 and the waterproof coating 10 each comprise a waterproof ointment, which can form a continuous dense waterproof structure to effectively prevent moisture penetration, and has fluidity to automatically fill newly formed gaps, realize self-adaptive sealing, maintain waterproof effect, and absorb mechanical vibration and impact to protect internal cable cores from external force damage.
[0071] In the description of the present application, a large number of specific details are explained. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the present description.
[0072] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present description and the features of the different embodiments or examples, without contradiction.
[0073] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and description of the present application.
Claims
1. A fiber optic telecommunications composite cable, characterized by, The application relates to a communication cable, comprising: a special-shaped framework, the outer periphery of which is provided with a plurality of uniformly distributed cable core grooves; a tensile member arranged in the central axis of the special-shaped framework; a communication cable core arranged in a part of the cable core grooves, an optical fiber cable core arranged in another part of the cable core grooves; a waterproof medium filled in the gap area of the cable core grooves; a waterproof layer wrapped outside the special-shaped framework; an armor layer wrapped outside the waterproof layer; a waterproof coating coated outside the armor layer; an outer sheath wrapped outside the waterproof coating; wherein the communication cable core and the optical fiber cable core are alternately arranged around the central axis of the special-shaped framework.
2. The fiber optic telecommunications composite cable of claim 1, wherein, The application further relates to a communication cable, comprising: an aluminum-plastic composite tape layer wrapped outside the waterproof layer; an inner sheath wrapped outside the aluminum-plastic composite tape layer and located inside the armor layer.
3. The fiber optic telecommunications composite cable of claim 2, wherein, The inner sheath and the outer sheath are both polyethylene sheaths.
4. The fiber optic telecommunications composite cable of claim 1, wherein, The tensile member is composed of 1*7 steel strands, and the steel strands are phosphorized steel strands.
5. The fiber optic telecommunications composite cable of claim 1, wherein, The optical fiber cable core is horizontally packaged by a plurality of coated optical fibers and forms a flat ribbon structure.
6. The fiber optic telecommunications composite cable of claim 1, wherein, The communication cable core comprises two pairs of uniformly twisted insulated cores, and the insulated cores comprise conductors and insulating layers wrapped outside the conductors.
7. The fiber optic telecommunications composite cable of claim 1, wherein, The armor layer is formed by galvanized steel wires wound in a spiral layer twisting mode.
8. The fiber optic telecommunications composite cable of claim 1, wherein, The waterproof medium and the waterproof coating both comprise waterproof ointment.