WO2018214488A1 - Porous optical cable - Google Patents

Porous optical cable Download PDF

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Publication number
WO2018214488A1
WO2018214488A1 PCT/CN2017/117117 CN2017117117W WO2018214488A1 WO 2018214488 A1 WO2018214488 A1 WO 2018214488A1 CN 2017117117 W CN2017117117 W CN 2017117117W WO 2018214488 A1 WO2018214488 A1 WO 2018214488A1
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WIPO (PCT)
Prior art keywords
layer
core
cable
porous
disposed
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PCT/CN2017/117117
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French (fr)
Chinese (zh)
Inventor
沈小平
李文善
李俊
刘延辉
孙勤良
李震宇
肖仁贵
陈斌
李刚
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通鼎互联信息股份有限公司
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Publication of WO2018214488A1 publication Critical patent/WO2018214488A1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G02B6/4432—Protective covering with fibre reinforcements

Definitions

  • the present application belongs to the technical field of optical cable manufacturing, and in particular to a porous optical cable.
  • Multi-core optical cables mainly have three structural forms: center bundle tube type, layer strand type, and skeleton type.
  • the layer twisting application is relatively wide.
  • each unit (the loose tube) accommodating the optical fiber is independently manufactured, and then is twisted together with the filling unit and the reinforcing unit to form a cable core, and then the outer sheath layer is formed to form an optical cable.
  • the fibers are coated in groups.
  • Skeleton fiber optic cable has the advantage of high efficiency in the fabrication of fiber-optic coating components, but there is one more process for placing fiber optics.
  • the layered type has the advantages of making the fiber-coated component and the fiber, and also has the advantage of production efficiency, but the process of twisting the casing has a unit combination process.
  • the present application aims to propose a porous optical cable capable of fabricating a plurality of optical fiber coating components at one time and placing optical fibers while fabricating the optical fiber coating assembly, thereby improving production efficiency and reducing manufacturing costs.
  • a porous optical cable comprising an outer sheath structure, at least one cable core and or one or more optical cable filling members are disposed inside the outer sheath structure; and a reinforcing member is disposed in the cable core or the sheath structure;
  • Each of the cores includes at least one cladding member having a porous structure, the inner hole of the cladding member being coated with an optical fiber or an optical fiber ribbon, and or a functional component; the functional component including a filler, a resistor a water material and a tear cord; the cover member and/or the core filler member in each core is uniformly disposed centrally with the core; the reinforcement member is disposed at the center of the core or symmetrically centered on the core Set in the sheath structure.
  • each of the inner holes of the covering member is arranged in a threaded manner.
  • the sheath structure comprises a mat layer, an armor layer and an outer layer.
  • the underlayer is made of a polypropylene layer, a polyethylene layer or a polyvinyl chloride layer.
  • the outer layer is made of a fiber layer, a polyvinyl chloride layer, or a polyethylene layer.
  • the outer layer is made of a nylon-coated polyethylene structure.
  • the inner hole of the covering member has a different wall thickness, or a flange or a sharp corner at the inner hole for facilitating stress concentration.
  • the inner hole of the covering member has a cross section of an arbitrary shape.
  • the present application creates a one-time overmolding using a porous covering member, which reduces the number of loose tube processing and eliminates the cable forming process compared with the conventional layer twisted optical cable.
  • the cable core is more compact in physical structure. It has more excellent compression resistance, and also effectively reduces the outer diameter of the cable, reduces the amount of materials, and reduces the cost.
  • Figure 1 is a schematic view showing the structure of the present application created by the reinforcing member disposed at the center of the core;
  • FIG. 2 is a schematic structural view of the present application created by the reinforcing member disposed in the sheath structure
  • FIG 3 is a schematic view showing the structure of the present application provided with a plurality of covering members and a core filler.
  • first”, second, and the like are used for the purpose of description only, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first”, “second”, etc. may include one or more of the features, either explicitly or implicitly.
  • “multiple” means two or more unless otherwise stated.
  • connection is disassembled or connected integrally; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the specific meaning of the above terms in the creation of the present application can be understood by a person of ordinary skill in the art.
  • a porous optical cable as shown in Figures 1 to 3, comprising an outer sheath structure, at least one cable core, and or one or more cable core fillers 14 are disposed inside the outer sheath structure 10; Core or guard A reinforcing member 6 is disposed in the layer structure; each of the cores includes at least one covering member 4 having a porous structure. It should be noted that the inner hole of the covering member is preferably disposed uniformly at the center of the covering member.
  • the inner hole of the covering member is covered with an optical fiber 1 or an optical fiber ribbon, and or a functional component;
  • the functional component comprises a filler 7, an inner water blocking material layer 2 and a first tearing cord 3; each cable
  • the cladding member and/or the core filler member in the core are disposed centrally with the core;
  • the reinforcement member 6 is disposed at the center of the core or symmetrically disposed within the sheath structure centering on the core.
  • the optical fiber includes an uncolored fiber, a colored fiber, a color ring fiber, a color lock fiber, a tight fiber, a fiber ribbon, a fiber bundle, and the fiber is a communication fiber or a non-communication fiber, such as a power transmission fiber.
  • An outer layer of water blocking material 8 is disposed between the covering member and the sheath structure, and between the core filler member and the sheath structure, and a second tearing cord 9 is disposed in the outer water blocking material layer. .
  • a cushion layer 15 may be disposed outside the center reinforcing member to ensure that the reinforcing member does not damage the covering member and the optical fiber when the force is applied.
  • the marking strip 5 can also be disposed in the covering member, and the marking strip is used for identification of the two ends of the optical cable, and can be longitudinally penetrated through the entire porous unit.
  • the marking strip may be a color strip different from the color of the porous unit, and the single color strips arranged in different colors, or the relative positions or colors of the plurality of color strips are different to distinguish the two ends of the identification cable, and the color strip is located on the outer surface of the porous unit.
  • it may be a groove (or protrusion) located on the outer surface of the porous unit, using a single groove (or protrusion) shape, or a plurality of grooves (or protrusions) having different relative positions or shapes.
  • the hole is filled with water blocking material.
  • the inner holes of the above-mentioned covering member 4 are arranged in a threaded manner inside the covering member, and the structure is compact, and the optical cable has strong external impact capability and stable operation.
  • the inner hole may also directly penetrate the entire cable core along the longitudinal direction of the porous unit, or may be arranged in a loose tube SZ twisted manner when the cable is cabled.
  • the sheath structure includes a mat layer, an armor layer 11 and an outer layer 12 which are sequentially disposed.
  • the sheath layer may be at least one of a mat layer, an armor layer and an outer layer, as needed.
  • the cushion layer is made of a polypropylene layer, a polyethylene layer or a polyvinyl chloride layer.
  • the outer layer is made of a fiber layer, a polyvinyl chloride layer, or a polyethylene layer.
  • the armor layer may be a steel pipe, a wrapped double steel strip, a single thin round steel wire, a double thin round steel wire, a single thick round steel wire, a double thick round steel wire, a corrugated steel strip, a non-metallic wire, a non-metallic belt.
  • the outer cover layer is preferably a nylon-coated polyethylene structure.
  • the covering member can be made of PBT, PP, PC, PA, PE, PET, PVC or LSZH material, and the inner hole of the covering member 4 has an arbitrary shape, and can be flexibly selected according to requirements, and the limitation is small.
  • the inner hole of the cover member 4 has different wall thicknesses or a flange or a sharp corner for facilitating stress concentration at the inner hole, so that the inner hole can be opened and peeled, thereby removing the optical fiber.
  • the number of holes in each of the covering members is a positive integer of not less than 1.
  • the inner hole may identify or identify each hole according to the shape of the hole, or the arrangement of holes of different shapes, and the distance between the holes. Fibers or corresponding functional components may not be provided in some internal holes as needed.
  • the present application creates a one-time overmolding using a porous covering member, which reduces the number of loose tube processing and eliminates the cable forming process compared with the conventional layer twisted optical cable.
  • the cable core is more compact in physical structure. It has more excellent compression resistance, and also effectively reduces the outer diameter of the optical cable, reduces the amount of materials, and reduces the cost.
  • the present application provides an effective solution for reducing the overall cost of the optical cable, and at the same time, to improve the anti-cord cable resistance. Pressure performance provides a new structure.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Insulated Conductors (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

Provided is a porous optical cable, comprising an outer sheath structure (10), wherein the outer sheath structure (10) is internally provided with at least one cable core, and one or more optional core filling members (14); a reinforcing member (6) is disposed in the cable core or the outer sheath structure (10); each cable core comprises at least one coating member (4) having a porous structure, and inner holes of the coating member (4) hold therein an optical fiber (1) or an optical fiber ribbon, and an optional functional assembly; the functional assembly comprises a filler (7), a water-resistant material (2, 8, 13) and a ripcord (3); the coating member in each cable core (4) and the optional core filling member (14) are uniformly arranged around the cable core center; and the reinforcing member (6) is disposed at the center of the cable core or symmetrically disposed in the outer sheath structure (10) with the cable core as the center. Compared with a traditional layered stranded cable, the porous optical cable is obtained through a one-process plastic coating molding of the porous cover member (4) and reduces the number of loose tube processes, eliminates a cable-forming process, provides superior compression resistance, and reduces material usage, thereby reducing costs.

Description

一种多孔光缆Porous optical cable 技术领域Technical field
本申请创造属于光缆生产制造技术领域，尤其是涉及一种多孔光缆。The present application belongs to the technical field of optical cable manufacturing, and in particular to a porous optical cable.
背景技术Background technique
多芯光缆主要有三种结构形式：中心束管式、层绞式、骨架式。其中层绞式应用比较广泛。对于层绞式光缆，其容纳光纤的各个单元(松套管)独立制造而成，后与填充单元及加强单元一起绞合而形成缆芯，后经外护层制作过程，形成光缆。光纤是分组施以被覆的。对于骨架式光缆，其容纳光纤的组件是一次制作形成，而后再放置光纤于其中。骨架式光缆在制作光纤被覆组件上具备高效率的优势，但放置光纤多了一道工序。而层绞式则具备将制作光纤被覆组件与放置光纤同步实现，也具备制作效率优势，但其绞合套管的过程则多了一道单元组合的工序。Multi-core optical cables mainly have three structural forms: center bundle tube type, layer strand type, and skeleton type. Among them, the layer twisting application is relatively wide. For the layer-twisted optical cable, each unit (the loose tube) accommodating the optical fiber is independently manufactured, and then is twisted together with the filling unit and the reinforcing unit to form a cable core, and then the outer sheath layer is formed to form an optical cable. The fibers are coated in groups. For a skeleton cable, the components that house the fiber are formed in one shot, and then the fiber is placed therein. Skeleton fiber optic cable has the advantage of high efficiency in the fabrication of fiber-optic coating components, but there is one more process for placing fiber optics. The layered type has the advantages of making the fiber-coated component and the fiber, and also has the advantage of production efficiency, but the process of twisting the casing has a unit combination process.
申请内容Application content
有鉴于此，本申请创造旨在提出一种多孔光缆，既能一次制作多个光纤被覆组件、又能在制作光纤被覆组件的同时放置光纤，提高生产效率，降低制造成本。In view of this, the present application aims to propose a porous optical cable capable of fabricating a plurality of optical fiber coating components at one time and placing optical fibers while fabricating the optical fiber coating assembly, thereby improving production efficiency and reducing manufacturing costs.
为达到上述目的，本申请创造的技术方案是这样实现的：In order to achieve the above object, the technical solution created by the present application is implemented as follows:
一种多孔光缆，包括外护层结构，在外护层结构内部设有至少一根缆芯、以及或有的一根或数根光缆填充件；在缆芯或护层结构内设有加强件；每一所述缆芯均包括至少一个具有多孔结构的包覆件，该包覆件的内孔中包覆有光纤或光纤带、以及或有的功能组件；所述功能组件包括填充物、阻水材料和撕裂绳；每一缆芯内的包覆件以及或有的缆芯填充件以该缆芯中心均布设置；所述加强件设置在缆芯中心处或以缆芯为中心对称设置在护层结构内。 A porous optical cable comprising an outer sheath structure, at least one cable core and or one or more optical cable filling members are disposed inside the outer sheath structure; and a reinforcing member is disposed in the cable core or the sheath structure; Each of the cores includes at least one cladding member having a porous structure, the inner hole of the cladding member being coated with an optical fiber or an optical fiber ribbon, and or a functional component; the functional component including a filler, a resistor a water material and a tear cord; the cover member and/or the core filler member in each core is uniformly disposed centrally with the core; the reinforcement member is disposed at the center of the core or symmetrically centered on the core Set in the sheath structure.
进一步，所述包覆件的各个内孔以螺纹绞合方式布置。Further, each of the inner holes of the covering member is arranged in a threaded manner.
进一步，所述护层结构包括垫层、铠装层和外被层。Further, the sheath structure comprises a mat layer, an armor layer and an outer layer.
进一步，所述垫层采用聚丙烯层、聚乙烯层或聚氯乙烯层。Further, the underlayer is made of a polypropylene layer, a polyethylene layer or a polyvinyl chloride layer.
进一步，所述外被层采用纤维层、聚氯乙烯层、或聚乙烯层Further, the outer layer is made of a fiber layer, a polyvinyl chloride layer, or a polyethylene layer.
进一步，所述外被层采用尼龙加覆聚乙烯结构。Further, the outer layer is made of a nylon-coated polyethylene structure.
进一步，所述包覆件的内孔的壁厚不同、或在内孔处设有便于产生应力集中的折边或尖角。Further, the inner hole of the covering member has a different wall thickness, or a flange or a sharp corner at the inner hole for facilitating stress concentration.
进一步，所述包覆件的内孔截面为任意形状。Further, the inner hole of the covering member has a cross section of an arbitrary shape.
相对于现有技术，本申请创造具有以下优势：Compared with the prior art, the present application has the following advantages:
本申请创造采用多孔的包覆件一次性套塑成型，与传统的层绞式光缆相比，减少了松套管加工数量以及免除了成缆工序；其次，光缆的缆芯为实体结构更加紧凑，具有更加优异的抗压性能，还有效减小了光缆的外径，降低了材料用量，从而降低成本。The present application creates a one-time overmolding using a porous covering member, which reduces the number of loose tube processing and eliminates the cable forming process compared with the conventional layer twisted optical cable. Secondly, the cable core is more compact in physical structure. It has more excellent compression resistance, and also effectively reduces the outer diameter of the cable, reduces the amount of materials, and reduces the cost.
附图说明DRAWINGS
构成本申请创造的一部分的附图用来提供对本申请创造的进一步理解，本申请创造的示意性实施例及其说明用于解释本申请创造，并不构成对本申请创造的不当限定。在附图中：The accompanying drawings, which are incorporated in the claims of the claims In the drawing:
图1为加强件设置在缆芯中心处的本申请创造的结构示意图；Figure 1 is a schematic view showing the structure of the present application created by the reinforcing member disposed at the center of the core;
图2为加强件设置在护层结构内的本申请创造的结构示意图；2 is a schematic structural view of the present application created by the reinforcing member disposed in the sheath structure;
图3为设置有数个包覆件以及缆芯填充件的本申请创造的结构示意图。3 is a schematic view showing the structure of the present application provided with a plurality of covering members and a core filler.
附图标记说明：Description of the reference signs:
1-光纤；2-内侧阻水材料层；3-第一撕裂绳；4-包覆件；5-标识条；6- 加强件；7-填充物；8-外侧阻水材料层；9-第二撕裂绳；10-外护层结构；11-铠装层；12-外被层；13-中层阻水材料；14-缆芯填充件；15-缓冲垫层。1-fiber; 2-inner water blocking material layer; 3-first tearing rope; 4-cladding; 5-marking strip; Reinforcement member; 7-filler; 8--outer water-blocking material layer; 9-second tearing rope; 10--outer sheath structure; 11-armor layer; 12-outer layer; 13-middle layer water-blocking material; 14-core filler; 15-cushion.
具体实施方式detailed description
需要说明的是，在不冲突的情况下，本申请创造中的实施例及实施例中的特征可以相互组合。It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
在本申请创造的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请创造和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请创造的限制。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请创造的描述中，除非另有说明，“多个”的含义是两个或两个以上。In the description created by the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", The orientation or positional relationship of the indications of "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, only for convenience of description of the present application. The description and the simplification of the present invention are not intended to limit or imply that the device or component referred to has a particular orientation, and is constructed and operated in a particular orientation. Moreover, the terms "first", "second", and the like are used for the purpose of description only, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first", "second", etc. may include one or more of the features, either explicitly or implicitly. In the description created in the present application, "multiple" means two or more unless otherwise stated.
在本申请创造的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以通过具体情况理解上述术语在本申请创造中的具体含义。In the description of the present application, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be, for example, a fixed connection or a The connection is disassembled or connected integrally; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be internal communication between the two elements. The specific meaning of the above terms in the creation of the present application can be understood by a person of ordinary skill in the art.
下面将参考附图并结合实施例来详细说明本申请创造。The present application will be described in detail below with reference to the accompanying drawings in conjunction with the embodiments.
一种多孔光缆，如图1至3所示，包括外护层结构，在外护层结构10内部设有至少一根缆芯、以及或有的一根或数根缆芯填充件14；在缆芯或护 层结构内设有加强件6；每一所述缆芯均包括至少一个具有多孔结构的包覆件4，需要指出的是，包覆件的内孔最好以包覆件中心均布设置，该包覆件的内孔中包覆有光纤1或光纤带、以及或有的功能组件；所述功能组件包括填充物7、内侧阻水材料层2和第一撕裂绳3；每一缆芯内的包覆件以及或有的缆芯填充件以该缆芯中心均布设置；所述加强件6设置在缆芯中心处或以缆芯为中心对称设置在护层结构内。A porous optical cable, as shown in Figures 1 to 3, comprising an outer sheath structure, at least one cable core, and or one or more cable core fillers 14 are disposed inside the outer sheath structure 10; Core or guard A reinforcing member 6 is disposed in the layer structure; each of the cores includes at least one covering member 4 having a porous structure. It should be noted that the inner hole of the covering member is preferably disposed uniformly at the center of the covering member. The inner hole of the covering member is covered with an optical fiber 1 or an optical fiber ribbon, and or a functional component; the functional component comprises a filler 7, an inner water blocking material layer 2 and a first tearing cord 3; each cable The cladding member and/or the core filler member in the core are disposed centrally with the core; the reinforcement member 6 is disposed at the center of the core or symmetrically disposed within the sheath structure centering on the core.
上述的光纤包括未着色光纤、着色光纤、色环光纤、锁色光纤、紧套光纤、光纤带、光纤束，光纤是通信光纤、或者是非通信光纤，如传能光纤。The optical fiber includes an uncolored fiber, a colored fiber, a color ring fiber, a color lock fiber, a tight fiber, a fiber ribbon, a fiber bundle, and the fiber is a communication fiber or a non-communication fiber, such as a power transmission fiber.
在包覆件与护层结构之间、以及或有的缆芯填充件与护层结构之间设有外侧阻水材料层8，并在外侧阻水材料层内设有第二撕裂绳9。An outer layer of water blocking material 8 is disposed between the covering member and the sheath structure, and between the core filler member and the sheath structure, and a second tearing cord 9 is disposed in the outer water blocking material layer. .
当加强件设置在缆芯中心处时，在包覆件与加强件之间、或有的缆芯填充件与加强件之间、以及包覆件与或有的缆芯填充件之间设有中层阻水材料13。且，中心的加强件外侧可以设置缓冲垫层15，确保在受力时加强件不会对包覆件以及光纤造成伤害。When the reinforcing member is disposed at the center of the cable core, between the covering member and the reinforcing member, between the cable core filling member and the reinforcing member, and between the covering member and the existing core filling member Middle layer water blocking material 13. Moreover, a cushion layer 15 may be disposed outside the center reinforcing member to ensure that the reinforcing member does not damage the covering member and the optical fiber when the force is applied.
需要指出的是，在包覆件内还可以设置标识条5，标识条用于光缆两端的辨识，可以是纵向贯穿整个多孔单元。标识条可以是与多孔单元颜色不同的色条，采用不同颜色排列的单根色条，或多个色条的相对位置或颜色不同来来区分辨识光缆两端，色条位于多孔单元的外表面或者内部；当然，也可以是位于多孔单元外表面的凹槽(或凸起)，采用单个凹槽(或凸起)的形状，或多个凹槽(或凸起)的相对位置或形状不同来区分辨识光缆两端；另外，还可以是位于多孔单元内的孔，采用单个孔的形状，或多个孔的相对位置或形状不同来区分辨识光缆两端，孔内填充阻水材料。It should be noted that the marking strip 5 can also be disposed in the covering member, and the marking strip is used for identification of the two ends of the optical cable, and can be longitudinally penetrated through the entire porous unit. The marking strip may be a color strip different from the color of the porous unit, and the single color strips arranged in different colors, or the relative positions or colors of the plurality of color strips are different to distinguish the two ends of the identification cable, and the color strip is located on the outer surface of the porous unit. Or internal; of course, it may be a groove (or protrusion) located on the outer surface of the porous unit, using a single groove (or protrusion) shape, or a plurality of grooves (or protrusions) having different relative positions or shapes. To distinguish between the two ends of the identification cable; in addition, it may be a hole in the porous unit, the shape of a single hole, or the relative position or shape of the plurality of holes to distinguish the two ends of the identification cable, the hole is filled with water blocking material.
上述包覆件4的各个内孔在包覆件内部以螺纹绞合方式布置，结构布置紧凑，光缆承受外力冲击能力强，工作稳定。当然，为了便于加工或根据实 际需要，其内孔也可以是沿多孔单元纵向直接贯穿整个缆芯，还可以是类似光缆成缆时松套管SZ绞合方式排列。The inner holes of the above-mentioned covering member 4 are arranged in a threaded manner inside the covering member, and the structure is compact, and the optical cable has strong external impact capability and stable operation. Of course, in order to facilitate processing or If necessary, the inner hole may also directly penetrate the entire cable core along the longitudinal direction of the porous unit, or may be arranged in a loose tube SZ twisted manner when the cable is cabled.
上述护层结构包括依次设置的垫层、铠装层11和外被层12，当然，根据需要，可以将护层结构采用垫层、铠装层和外被层中的至少一种。其中，垫层采用聚丙烯层、聚乙烯层或聚氯乙烯层。外被层采用纤维层、聚氯乙烯层、或聚乙烯层。铠装层可以是无或钢管、绕包双钢带、单细圆钢丝、双细圆钢丝、单粗圆钢丝、双粗圆钢丝、皱纹钢带、非金属丝、非金属带其中的一种。上述外被层优选采用尼龙加覆聚乙烯结构。The sheath structure includes a mat layer, an armor layer 11 and an outer layer 12 which are sequentially disposed. Of course, the sheath layer may be at least one of a mat layer, an armor layer and an outer layer, as needed. Wherein, the cushion layer is made of a polypropylene layer, a polyethylene layer or a polyvinyl chloride layer. The outer layer is made of a fiber layer, a polyvinyl chloride layer, or a polyethylene layer. The armor layer may be a steel pipe, a wrapped double steel strip, a single thin round steel wire, a double thin round steel wire, a single thick round steel wire, a double thick round steel wire, a corrugated steel strip, a non-metallic wire, a non-metallic belt. . The outer cover layer is preferably a nylon-coated polyethylene structure.
包覆件可以采用PBT、PP、PC、PA、PE、PET、PVC或LSZH材料制成，上述包覆件4的内孔截面为任意形状，根据需要可灵活选择，局限性小。上述包覆件4的内孔的壁厚不同、或在内孔处设有便于产生应力集中的折边或尖角，便于实现开剥各内孔，从而取出光纤。每一包覆件内孔个数为不小于1的正整数。内孔可以根据孔的形状的不同、或者不同形状的孔的排列不同、孔之间的距离不同，来标识或辨识各孔。可以根据需要，在某些内孔中，不设置光纤或相应的功能组件。The covering member can be made of PBT, PP, PC, PA, PE, PET, PVC or LSZH material, and the inner hole of the covering member 4 has an arbitrary shape, and can be flexibly selected according to requirements, and the limitation is small. The inner hole of the cover member 4 has different wall thicknesses or a flange or a sharp corner for facilitating stress concentration at the inner hole, so that the inner hole can be opened and peeled, thereby removing the optical fiber. The number of holes in each of the covering members is a positive integer of not less than 1. The inner hole may identify or identify each hole according to the shape of the hole, or the arrangement of holes of different shapes, and the distance between the holes. Fibers or corresponding functional components may not be provided in some internal holes as needed.
本申请创造采用多孔的包覆件一次性套塑成型，与传统的层绞式光缆相比，减少了松套管加工数量以及免除了成缆工序；其次，光缆的缆芯为实体结构更加紧凑，具有更加优异的抗压性能，还有效减小了光缆的外径，降低了材料用量，从而降低成本，本申请创造为降低光缆综合成本提供了一种有效的解决方案，同时为提高光缆抗压性能提供了一种新型结构。The present application creates a one-time overmolding using a porous covering member, which reduces the number of loose tube processing and eliminates the cable forming process compared with the conventional layer twisted optical cable. Secondly, the cable core is more compact in physical structure. It has more excellent compression resistance, and also effectively reduces the outer diameter of the optical cable, reduces the amount of materials, and reduces the cost. The present application provides an effective solution for reducing the overall cost of the optical cable, and at the same time, to improve the anti-cord cable resistance. Pressure performance provides a new structure.
以上所述仅为本申请创造的较佳实施例而已，并不用以限制本申请创造，凡在本申请创造的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请创造的保护范围之内。 The above description is only for the preferred embodiment of the present application, and is not intended to limit the creation of the present application. Any modifications, equivalent substitutions, improvements, etc., which are made within the spirit and principles of the present application, should be included in The scope of protection created by this application.

Claims (8)

  1. 一种多孔光缆，其特征在于：包括外护层结构，在该外护层结构内部设有至少一根缆芯、以及或有的一根或数根光缆填充件；在所述缆芯或护层结构内设有加强件；每一所述缆芯均包括至少一个具有多孔结构的包覆件，该包覆件的内孔中包覆有光纤或光纤带、以及或有的功能组件；所述功能组件包括填充物、阻水材料和撕裂绳；每一所述缆芯内的包覆件以及或有的缆芯填充件以该缆芯中心均布设置；所述加强件设置在缆芯中心处或以缆芯为中心对称设置在护层结构内。A porous optical cable, comprising: an outer sheath structure, wherein at least one cable core and/or one or more optical cable fillers are disposed inside the outer sheath structure; A reinforcing member is disposed in the layer structure; each of the cores includes at least one covering member having a porous structure, and the inner hole of the covering member is covered with an optical fiber or an optical fiber ribbon, and or a functional component; The functional component includes a filler, a water blocking material, and a tear line; a cover member and an optional core filler in each of the cores are uniformly disposed at a center of the core; the reinforcement is disposed on the cable The center of the core or symmetrically disposed within the sheath structure is centered on the core.
  2. 根据权利要求1所述的一种多孔光缆，其特征在于：所述包覆件的各个内孔以螺纹绞合方式布置。A porous optical cable according to claim 1, wherein each of the inner holes of the covering member is arranged in a threaded manner.
  3. 根据权利要求1所述的一种多孔光缆，其特征在于：所述护层结构包括垫层、铠装层和外被层。A porous optical cable according to claim 1, wherein said sheath structure comprises a mat layer, an armor layer and an outer layer.
  4. 根据权利要求3所述的一种多孔光缆，其特征在于：所述垫层采用聚丙烯层、聚乙烯层或聚氯乙烯层。A porous optical cable according to claim 3, wherein said underlayer is a polypropylene layer, a polyethylene layer or a polyvinyl chloride layer.
  5. 根据权利要求3所述的一种多孔光缆，其特征在于：所述外被层采用纤维层、聚氯乙烯层、或聚乙烯层A porous optical cable according to claim 3, wherein said outer layer is made of a fiber layer, a polyvinyl chloride layer, or a polyethylene layer.
  6. 根据权利要求3所述的一种多孔光缆，其特征在于：所述外被层采用尼龙加覆聚乙烯结构。A porous optical cable according to claim 3, wherein said outer layer is made of a nylon-coated polyethylene structure.
  7. 根据权利要求1所述的一种多孔光缆，其特征在于：所述包覆件的内孔的壁厚不同、或在内孔处设有便于产生应力集中的折边或尖角。A porous optical fiber cable according to claim 1, wherein the inner diameter of the inner surface of the covering member is different, or a flange or a sharp corner for facilitating stress concentration is provided at the inner hole.
  8. 根据权利要求1所述的一种多孔光缆，其特征在于：所述包覆件的内孔截面为任意形状。 A porous optical fiber cable according to claim 1, wherein said inner diameter of said covering member has an arbitrary cross section.
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