CN103955041B - A kind of introducing optical cable for FTTX - Google Patents
A kind of introducing optical cable for FTTX Download PDFInfo
- Publication number
- CN103955041B CN103955041B CN201410224450.9A CN201410224450A CN103955041B CN 103955041 B CN103955041 B CN 103955041B CN 201410224450 A CN201410224450 A CN 201410224450A CN 103955041 B CN103955041 B CN 103955041B
- Authority
- CN
- China
- Prior art keywords
- opening
- sleeve body
- yarn
- accommodating
- accommodating chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 54
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims abstract description 13
- 230000004308 accommodation Effects 0.000 claims description 31
- 239000002131 composite material Substances 0.000 claims description 16
- 239000003365 glass fiber Substances 0.000 claims description 16
- 229920003023 plastic Polymers 0.000 claims description 16
- 239000004033 plastic Substances 0.000 claims description 16
- 230000002787 reinforcement Effects 0.000 claims description 16
- 239000004760 aramid Substances 0.000 claims description 14
- 229920003235 aromatic polyamide Polymers 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 229920000728 polyester Polymers 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000011152 fibreglass Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 8
- 239000011241 protective layer Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000005728 strengthening Methods 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 abstract description 3
- 239000013307 optical fiber Substances 0.000 description 38
- 239000004698 Polyethylene Substances 0.000 description 6
- -1 polyethylene Polymers 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 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 description 4
- 239000003063 flame retardant Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 229920001179 medium density polyethylene Polymers 0.000 description 2
- 239000004701 medium-density polyethylene Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000007765 extrusion coating Methods 0.000 description 1
Landscapes
- Ropes Or Cables (AREA)
- Communication Cables (AREA)
Abstract
本发明属于线缆技术领域，尤其是涉及一种用于FTTX的引入光缆，它包含有套管体、护套层，其特征在于套管体的套管本体之内的空腔中具有光传输元件，套管体的外圆周上有开口，相邻的开口之间形成防护条；在任一横截面上：开口的对称轴线L过套管体的中心，每个开口的下方具有与该开口相连接通的容置腔室，容置腔室与容纳光传输元件的空腔不相通，相邻的容置腔室之间是不连通的，容置腔室对称地分布在套管本体之内，容置腔室的宽度是逐渐增大的；容置腔室中具有加强元件。本发明具有以下主要有益效果：纤芯密度更大，分支引入更方便，不需要复杂、昂贵的加强元件绞合设备，加强元件的固定更牢靠，生产工序更少，光缆外径更细，成本更低。
The invention belongs to the field of cable technology, and in particular relates to a lead-in optical cable for FTTX, which includes a sleeve body and a sheath layer, and is characterized in that the cavity inside the sleeve body of the sleeve body has optical transmission There are openings on the outer circumference of the sleeve body, and protective strips are formed between adjacent openings; on any cross-section: the symmetrical axis L of the opening passes through the center of the sleeve body, and each opening has a Connected accommodating chambers, the accommodating chambers are not connected to the cavity accommodating the optical transmission element, and adjacent accommodating chambers are not connected, and the accommodating chambers are symmetrically distributed in the sleeve body , the width of the accommodating chamber increases gradually; there are reinforcing elements in the accommodating chamber. The present invention has the following main beneficial effects: higher fiber core density, more convenient branch introduction, no need for complex and expensive strengh lower.
Description
技术领域 technical field
本发明属于线缆技术领域，尤其是涉及一种用于FTTX的引入光缆。 The invention belongs to the technical field of cables, and in particular relates to an incoming optical cable for FTTX.
背景技术 Background technique
随着3G、4G网络的规模应用，FTTX快速推进，光缆的需求日益增加，尤其是FTTX引入光缆的需求不断攀升，为此，国内外加大了FTTX光缆的研究与投入中华人民共和国邮电部通信行业标准YD/T769中规定了中心束管式光缆的结构，中心束管式光缆由于其仅有一根套管，因此，结构比较紧凑、纤芯密度大，但是中心束管式光缆的承力性能较差，通常采用钢丝在套管外绞合来保护套管及套管中的光通信部件，钢丝绞合通常需要体积庞大的绞合设备，而且生产厂商的投入比较大；中华人民共和国邮电部通信行业标准YD/T981中规定了骨架式光缆的结构，骨架式光缆具有分支容易的优点，特别适合于FTTX用途，但是骨架槽的制作比较麻烦，而且不适合大芯数结构；因此，国内外运营商期待有一种新型的光缆，它不仅体积小巧，承力性能优良，而且易分支，能满足大芯数要求。 With the large-scale application of 3G and 4G networks, FTTX is advancing rapidly, and the demand for optical cables is increasing day by day, especially the demand for FTTX lead-in optical cables. The standard YD/T769 stipulates the structure of the central beam tube optical cable. Since the central beam tube optical cable has only one sleeve, the structure is relatively compact and the core density is high, but the load-bearing performance of the central beam tube optical cable is relatively low. Poor, steel wires are usually twisted outside the casing to protect the casing and the optical communication components in the casing. Steel wire twisting usually requires bulky twisting equipment, and the manufacturer's investment is relatively large; Communications of the Ministry of Posts and Telecommunications of the People's Republic of China The industry standard YD/T981 stipulates the structure of the skeleton optical cable. The skeleton optical cable has the advantage of being easy to branch and is especially suitable for FTTX applications. Manufacturers look forward to a new type of optical cable, which is not only small in size, excellent in load bearing performance, but also easy to branch, and can meet the requirements of large core count.
发明内容 Contents of the invention
为了解决上述问题，本发明的目的揭示一种用于FTTX的引入光缆，它可以应用在室内、室外、室内外，它可以以管道方式、普通架空方式及自承式架空方式进行敷设。本发明是通过以下技术方案来实现的。 In order to solve the above problems, the object of the present invention discloses a drop optical cable for FTTX, which can be applied indoors, outdoors, indoors and outdoors, and can be laid in pipeline, common overhead and self-supporting overhead. The present invention is achieved through the following technical solutions.
本发明的实施实例1中，一种用于FTTX的引入光缆，它包含有套管体1、挤塑包覆在套管体之外的护套层2，其特征在于套管体的套管本体11之内的空腔中具有光传输元件12，套管体的外圆周上有多个对称分布的开口14，相邻的开口之间形成防护条15；在任一横截面上：开口的对称轴线L过套管体的中心，每个开口的下方具有与该开口相连接通的容置腔室13，容置腔室与容纳光传输元件的空腔是不相通的，相邻的容置腔室之间是不连通的，容置腔室对称地分布在套管本体之内，每个容置腔室的中心位于对应的开口的对称轴线L上，容置腔室的中心位于同一圆周上，开口与容置腔室连接处为开口内侧，套管体的外边缘为开口外侧，与任一开口的对称轴线相垂直的直线与该开口下方的容置腔室具有两个交点，该两个交点之间的长度称为容置腔室的宽度,从任一开口内侧沿该开口的对称轴线到容置腔室中心，容置腔室的宽度是逐渐增大的；容置腔室中具有加强元件3。 In embodiment 1 of the present invention, a kind of lead-in optical cable for FTTX, it comprises sleeve body 1, the sheath layer 2 that is extruded and coated on the outside of sleeve body, is characterized in that the sleeve of sleeve body There is a light transmission element 12 in the cavity inside the body 11, and there are a plurality of symmetrically distributed openings 14 on the outer circumference of the sleeve body, and a protective strip 15 is formed between adjacent openings; on any cross section: the openings are symmetrical The axis L passes through the center of the sleeve body, and below each opening there is an accommodating chamber 13 connected to the opening. The chambers are not connected, and the accommodation chambers are symmetrically distributed in the sleeve body, the center of each accommodation chamber is located on the symmetrical axis L of the corresponding opening, and the center of the accommodation chambers is located on the same circumference Above, the joint between the opening and the accommodation chamber is the inner side of the opening, the outer edge of the sleeve body is the outer side of the opening, and the line perpendicular to the axis of symmetry of any opening has two intersection points with the accommodation chamber below the opening. The length between the two intersection points is called the width of the accommodation chamber. From the inside of any opening along the axis of symmetry of the opening to the center of the accommodation chamber, the width of the accommodation chamber increases gradually; the accommodation chamber There is a reinforcing element 3 in it.
本发明的实施实例2中，一种用于FTTX的引入光缆，其特征还在于套管体的外圆周上具有凹槽16，凹槽位于相邻的开口之间的防护条上。 In Embodiment 2 of the present invention, an incoming optical cable for FTTX is further characterized in that there is a groove 16 on the outer circumference of the sleeve body, and the groove is located on the protective strip between adjacent openings.
本发明的实施实例3中，一种用于FTTX的引入光缆，它包含有套管体1、包覆在套管体外的保护层4、挤塑包覆在保护层4之外的护套层2，其特征在于套管体的套管本体11之内的空腔中具有光传输元件12，套管体的外圆周上有多个对称分布的开口14，相邻的开口之间形成防护条15；在任一横截面上：开口的对称轴线L过套管体的中心，每个开口的下方具有与该开口相连接通的容置腔室13，容置腔室与容纳光传输元件的空腔是不相通的，相邻的容置腔室之间是不连通的，容置腔室对称地分布在套管本体之内，每个容置腔室的中心位于对应的开口的对称轴线L上，容置腔室的中心位于同一圆周上，开口与容置腔室连接处为开口内侧，套管体的外边缘为开口外侧，与任一开口的对称轴线相垂直的直线与该开口下方的容置腔室具有两个交点，该两个交点之间的长度称为容置腔室的宽度,从任一开口内侧沿该开口的对称轴线到容置腔室中心，容置腔室的宽度是逐渐增大的；容置腔室中具有加强元件3。 In embodiment 3 of the present invention, a kind of lead-in optical cable for FTTX, it comprises casing body 1, the protective layer 4 that is coated on the outside of casing, the sheath layer that extrusion is coated on the outside of protective layer 4 2. It is characterized in that there is an optical transmission element 12 in the cavity inside the sleeve body 11 of the sleeve body, and there are a plurality of symmetrically distributed openings 14 on the outer circumference of the sleeve body, and a protective strip is formed between adjacent openings 15. On any cross-section: the symmetrical axis L of the opening passes through the center of the sleeve body, and there is an accommodating chamber 13 connected to the opening below each opening, and the accommodating chamber and the space for accommodating the optical transmission element The cavities are not connected, and the adjacent accommodating chambers are not connected. The accommodating chambers are symmetrically distributed in the sleeve body, and the center of each accommodating chamber is located on the symmetrical axis L of the corresponding opening. Above, the center of the accommodating chamber is located on the same circumference, the connection between the opening and the accommodating chamber is the inner side of the opening, the outer edge of the sleeve body is the outer side of the opening, and the line perpendicular to the axis of symmetry of any opening is directly below the opening. The accommodating chamber has two intersection points, the length between the two intersecting points is called the width of the accommodating chamber, from the inside of any opening along the axis of symmetry of the opening to the center of the accommodating chamber, the length of the accommodating chamber The width is gradually increased; there is a reinforcing element 3 in the accommodation chamber.
本实施实例中所述的用于FTTX的引入光缆，其特征所述保护层为钢塑复合带或铝塑复合带或玻璃纤维带或芳纶纱或玻璃纤维纱。 The introduction optical cable for FTTX described in this implementation example is characterized in that the protective layer is steel-plastic composite tape or aluminum-plastic composite tape or glass fiber tape or aramid yarn or glass fiber yarn.
进一步地，本实施实例中所述的用于FTTX的引入光缆，其特征所述加强元件还可为光导纤维或光导纤维带。 Further, the introduction optical cable for FTTX described in this implementation example is characterized in that the reinforcing element can also be an optical fiber or an optical fiber ribbon.
上述所述的任意一种用于FTTX的引入光缆，其特征在于所述套管本体的材料为塑料，所述套管体是一体形成的。 Any one of the above-mentioned drop optical cables for FTTX is characterized in that the material of the sleeve body is plastic, and the sleeve body is integrally formed.
上述所述的任意一种用于FTTX的引入光缆，其特征在于所述加强元件还可为钢丝或玻璃纤维增强塑料或芳纶纱或玻璃纤维纱或者是复合体，所述复合体指内部为钢丝或玻璃纤维增强塑料或芳纶纱或玻璃纤维纱，外部为与管本体一样的塑料。 Any one of the above-mentioned lead-in optical cables for FTTX is characterized in that the reinforcing element can also be steel wire or glass fiber reinforced plastic or aramid yarn or glass fiber yarn or a composite body, and the composite body refers to an internal Steel wire or glass fiber reinforced plastic or aramid yarn or glass fiber yarn, the outside is the same plastic as the pipe body.
上述所述的任意一种用于FTTX的引入光缆，其特征还在于，在任一横截面上，沿任一开口的对称轴线方向，从开口外侧到开口内侧，开口的宽度是一样大的或者开口的宽度是逐渐增大的。 Any one of the above-mentioned lead-in cables for FTTX is further characterized in that, on any cross-section, along the direction of the axis of symmetry of any opening, from the outside of the opening to the inside of the opening, the width of the opening is the same or the width of the opening is the same. The width is gradually increased.
上述所述的任意一种用于FTTX的引入光缆，其特征在于所述光传输元件为光导纤维或光导纤维带或既有光导纤维又有光导纤维带。 Any one of the above-mentioned drop optical cables for FTTX is characterized in that the optical transmission element is an optical fiber or an optical fiber ribbon or both an optical fiber and an optical fiber ribbon.
进一步地，上述所述的任意一种用于FTTX的引入光缆，其特征在于所述光导纤维为单模光纤或多模光纤；所述光导纤维带中的光导纤维为单模光纤或多模光纤。 Further, any one of the above-mentioned drop optical cables for FTTX is characterized in that the optical fiber is a single-mode optical fiber or a multi-mode optical fiber; the optical fiber in the optical fiber ribbon is a single-mode optical fiber or a multi-mode optical fiber .
上述所述的任意一种用于FTTX的引入光缆，其特征在于所述护套层的材料为低密度聚乙烯或中密度聚乙烯或高密度聚乙烯或阻燃聚乙烯或低烟无卤聚乙烯或低烟低卤阻燃聚乙烯。 Any one of the above-mentioned lead-in cables for FTTX is characterized in that the material of the sheath layer is low-density polyethylene or medium-density polyethylene or high-density polyethylene or flame-retardant polyethylene or low-smoke halogen-free polyethylene. Ethylene or low-smoke low-halogen flame-retardant polyethylene.
上述所述的任意一种用于FTTX的引入光缆，其特征在于，套管体外螺旋包覆有防脱物质。 Any one of the above-mentioned lead-in optical cables for FTTX is characterized in that the outer casing is helically coated with a detachment-preventing substance.
进一步地，上述所述的任意一种用于FTTX的引入光缆，其特征在于所述防脱物质是聚酯带或聚酯纱或阻水带或阻水纱或芳纶纱或玻璃纤维纱或涤纶纱或锦纶纱。 Further, any one of the above-mentioned lead-in cables for FTTX is characterized in that the anti-shedding material is polyester tape or polyester yarn or water-blocking tape or water-blocking yarn or aramid yarn or glass fiber yarn or Polyester yarn or nylon yarn.
本发明中，由于从任一开口内侧沿该开口的对称轴线到容置腔室中心，容置腔室的宽度是逐渐增大的；以及沿任一开口的对称轴线方向，从开口外侧到开口内侧，开口的宽度是一样大的或者开口的宽度是逐渐增大的；因此，即使在套管体生产完成后，加强元件也极易从开口置入到容置腔室，且可填充饱满容置腔室；当然，也可以在生产套管体时，将加强元件直接置入容置腔室，这样大大节省了工序；而且加强件对称地分布在容置腔室中，因此，即使经过多次反复弯曲，卷绕，曲挠，反复施工，光缆的机械性能仍能保持一致，加强元件不会象平时的绞合方式一样会松散开。 In the present invention, the width of the accommodating chamber gradually increases from the inside of any opening along the axis of symmetry of the opening to the center of the accommodating chamber; and along the direction of the axis of symmetry of any opening, from the outside of the opening to the center of the opening On the inner side, the width of the opening is the same or the width of the opening is gradually increased; therefore, even after the production of the sleeve body is completed, the reinforcing element is very easy to be placed into the accommodation chamber from the opening, and the full volume can be filled. Of course, when the sleeve body is produced, the reinforcement elements can be placed directly into the accommodating chamber, which greatly saves the process; and the reinforcements are symmetrically distributed in the accommodating chamber, so even after many Repeated bending, winding, flexing, and repeated construction, the mechanical properties of the optical cable can still remain consistent, and the reinforcing elements will not loosen like the usual twisting method.
本发明中，套管体外螺旋包覆有防脱物质，更确保了加强元件不会从容置腔室中逸出，保证了光缆加强件分布的均匀性及光缆力学性能的一致性。 In the present invention, the outside of the casing is helically coated with the detachment-preventing substance, which further ensures that the reinforcing element will not escape from the accommodating chamber, and ensures the uniformity of the distribution of the optical cable reinforcement and the consistency of the mechanical properties of the optical cable.
本发明中，加强元件为复合体时，复合体指内部为钢丝或玻璃纤维增强塑料或芳纶纱或玻璃纤维纱，外部为与管本体一样的塑料；这样，在生产套管体时若加入加强元件，则加强元件可与套管本体粘结为一体，使加强元件很难从开口中逸出，即使不采用防脱物质也可达到使加强元件固定的目的。 In the present invention, when the reinforcing element is a composite body, the composite body refers to steel wire or glass fiber reinforced plastic or aramid yarn or glass fiber yarn inside, and the outside is the same plastic as the pipe body; in this way, if adding If the reinforcement element is used, the reinforcement element can be bonded with the casing body as a whole, so that the reinforcement element is difficult to escape from the opening, and the purpose of fixing the reinforcement element can be achieved even if no anti-detachment material is used.
本发明中，由于套管体是同塑料制成的，塑料具有相当高的韧性，因此，相邻的防护条可以小范围地分开与贴近，分开时有利于加强元件的置入，贴近时可以使防止加强元件的逸出；防脱物质可以使防护条相互贴近。 In the present invention, since the sleeve body is made of plastic, the plastic has relatively high toughness, therefore, the adjacent protective strips can be separated and brought close together in a small range. To prevent the escape of reinforcing elements; the anti-shedding material can make the protective strips close to each other.
本发明中，若加强元件可为光导纤维或光导纤维带，则可大大地提高光纤的密度，使其达到更大芯数的目的，而且，容置腔室中的光导纤维或光导纤维带极易被取出，用于分支接入，而且不会破坏套管体，产品可被灵活应用于FTTX引入中。 In the present invention, if the reinforcing element can be an optical fiber or an optical fiber ribbon, the density of the optical fiber can be greatly improved to achieve a larger number of cores, and the optical fiber or optical fiber ribbon in the accommodating chamber It is easy to be taken out for branch access without damaging the sleeve body, and the product can be flexibly used in FTTX introduction.
因此，本发明具有以下主要有益效果：纤芯密度更大，分支引入更方便，不需要复杂、昂贵的加强元件绞合设备，加强元件的固定更牢靠，生产工序更少，光缆外径更细，成本更低。 Therefore, the present invention has the following main beneficial effects: higher fiber core density, more convenient branch introduction, no need for complicated and expensive strengthening element stranding equipment, more reliable fixing of strengthening elements, fewer production processes, and thinner outer diameter of the optical cable , the cost is lower.
附图说明 Description of drawings
图1为本发明实施实例1的一段剖开后的立体结构示意图。 Fig. 1 is a schematic diagram of a cut-away three-dimensional structure of Example 1 of the present invention.
图2为图1放大后的横截面结构示意图。 FIG. 2 is a schematic diagram of an enlarged cross-sectional structure of FIG. 1 .
图3为图1中的套管体的立体结构示意图。 FIG. 3 is a schematic perspective view of the three-dimensional structure of the sleeve body in FIG. 1 .
图4为图3放大后的横截面结构示意图。 FIG. 4 is a schematic diagram of an enlarged cross-sectional structure of FIG. 3 .
图5为本发明实施实例2的横截面结构示意图。 Fig. 5 is a schematic diagram of the cross-sectional structure of Embodiment 2 of the present invention.
图6为本发明实施实例3的一段剖开后的立体结构示意图。 Fig. 6 is a schematic diagram of a cut-away three-dimensional structure of Embodiment 3 of the present invention.
具体实施方式 detailed description
实施实例1Implementation Example 1
请见图1至图4；一种用于FTTX的引入光缆，它包含有套管体1、挤塑包覆在套管体之外的护套层2，其特征在于套管体的套管本体11之内的空腔中具有光传输元件12，套管体的外圆周上有12个对称分布的开口14，相邻的开口之间形成防护条15；在任一横截面上：开口的对称轴线L过套管体的中心，每个开口的下方具有与该开口相连接通的容置腔室13，容置腔室与容纳光传输元件的空腔是不相通的，相邻的容置腔室之间是不连通的，容置腔室对称地分布在套管本体之内，每个容置腔室的中心位于对应的开口的对称轴线L上，容置腔室的中心位于同一圆周上，开口与容置腔室连接处为开口内侧，套管体的外边缘为开口外侧，与任一开口的对称轴线相垂直的直线与该开口下方的容置腔室具有两个交点，该两个交点之间的长度称为容置腔室的宽度,从任一开口内侧沿该开口的对称轴线到容置腔室中心，容置腔室的宽度是逐渐增大的；容置腔室中具有加强元件3。 Please see Figures 1 to 4; an incoming optical cable for FTTX, which includes a sleeve body 1, a sheath layer 2 that is extruded and coated outside the sleeve body, and is characterized in that the sleeve of the sleeve body There is a light transmission element 12 in the cavity inside the body 11, and there are 12 symmetrically distributed openings 14 on the outer circumference of the sleeve body, and a protective strip 15 is formed between adjacent openings; on any cross section: the openings are symmetrical The axis L passes through the center of the sleeve body, and below each opening there is an accommodating chamber 13 connected to the opening. The chambers are not connected, and the accommodation chambers are symmetrically distributed in the sleeve body, the center of each accommodation chamber is located on the symmetrical axis L of the corresponding opening, and the center of the accommodation chambers is located on the same circumference Above, the joint between the opening and the accommodation chamber is the inner side of the opening, the outer edge of the sleeve body is the outer side of the opening, and the line perpendicular to the axis of symmetry of any opening has two intersection points with the accommodation chamber below the opening. The length between the two intersection points is called the width of the accommodation chamber. From the inside of any opening along the axis of symmetry of the opening to the center of the accommodation chamber, the width of the accommodation chamber increases gradually; the accommodation chamber There is a reinforcing element 3 in it.
实施实例2Implementation example 2
请见图5，并参考图1至图4，一种用于FTTX的引入光缆，基本同实施实例1，不同之处在于套管体的外圆周上具有凹槽16，凹槽位于相邻的开口之间的防护条上；凹槽存在时，即使容置腔室中的为相同芯数的光纤或光纤带，在两端或中间也可以方便地识别；同时，在生产制作时，可以方便地定位。 Please see Fig. 5, and referring to Fig. 1 to Fig. 4, a kind of lead-in optical cable for FTTX is basically the same as embodiment 1, the difference is that there is a groove 16 on the outer circumference of the sleeve body, and the groove is located in the adjacent On the protective strip between the openings; when the groove exists, even if the optical fiber or optical fiber ribbon in the accommodating chamber is the same number of cores, it can be easily identified at both ends or in the middle; at the same time, it can be convenient during production location.
实施实例3Implementation Example 3
请见图6，并参考图1至图4，一种用于FTTX的引入光缆，它包含有套管体1、包覆在套管体外的保护层4、挤塑包覆在保护层4之外的护套层2，其特征在于套管体的套管本体11之内的空腔中具有光传输元件12，套管体的外圆周上有多个对称分布的开口14，相邻的开口之间形成防护条15；在任一横截面上：开口的对称轴线L过套管体的中心，每个开口的下方具有与该开口相连接通的容置腔室13，容置腔室与容纳光传输元件的空腔是不相通的，相邻的容置腔室之间是不连通的，容置腔室对称地分布在套管本体之内，每个容置腔室的中心位于对应的开口的对称轴线L上，容置腔室的中心位于同一圆周上，开口与容置腔室连接处为开口内侧，套管体的外边缘为开口外侧，与任一开口的对称轴线相垂直的直线与该开口下方的容置腔室具有两个交点，该两个交点之间的长度称为容置腔室的宽度,从任一开口内侧沿该开口的对称轴线到容置腔室中心，容置腔室的宽度是逐渐增大的；容置腔室中具有加强元件3。 Please see Fig. 6, and refer to Fig. 1 to Fig. 4, a kind of drop-in optical cable for FTTX, which includes a sleeve body 1, a protective layer 4 coated on the outside of the sleeve, and extrusion coating on the protective layer 4 The outer sheath layer 2 is characterized in that there is an optical transmission element 12 in the cavity inside the sleeve body 11 of the sleeve body, and there are a plurality of symmetrically distributed openings 14 on the outer circumference of the sleeve body, adjacent openings Protective strip 15 is formed between; On any cross-section: the symmetrical axis L of opening passes the center of casing body, the bottom of each opening has the accommodating chamber 13 that is connected with this opening, accommodating chamber and accommodating The cavities of the optical transmission element are not connected, and the adjacent accommodating chambers are not connected. The accommodating chambers are symmetrically distributed in the sleeve body, and the center of each accommodating chamber is located in the corresponding On the axis of symmetry L of the opening, the center of the accommodating chamber is located on the same circumference, the connection between the opening and the accommodating chamber is the inner side of the opening, and the outer edge of the sleeve body is the outer side of the opening, perpendicular to the axis of symmetry of any opening The straight line has two intersections with the accommodation chamber below the opening, and the length between the two intersections is called the width of the accommodation chamber, from the inside of any opening along the axis of symmetry of the opening to the center of the accommodation chamber, The width of the accommodating chamber increases gradually; there is a reinforcing element 3 in the accommodating chamber.
本实施实例中所述的用于FTTX的引入光缆，其特征所述保护层为钢塑复合带或铝塑复合带或玻璃纤维带或芳纶纱或玻璃纤维纱。 The introduction optical cable for FTTX described in this implementation example is characterized in that the protective layer is steel-plastic composite tape or aluminum-plastic composite tape or glass fiber tape or aramid yarn or glass fiber yarn.
进一步地，本实施实例中所述的用于FTTX的引入光缆，其特征所述加强元件还可为光导纤维或光导纤维带。 Further, the introduction optical cable for FTTX described in this implementation example is characterized in that the reinforcing element can also be an optical fiber or an optical fiber ribbon.
上述所述的任意一种用于FTTX的引入光缆，其特征在于所述开口还可为其它多个，根据需要的抗拉力、光缆的直径、套管体的外径等确确定。 Any one of the above-mentioned lead-in optical cables for FTTX is characterized in that the openings can also be other multiples, which are determined according to the required tensile force, the diameter of the optical cable, and the outer diameter of the sleeve body.
上述所述的任意一种用于FTTX的引入光缆，其特征在于所述套管本体的材料为塑料，所述套管体是一体形成的。 Any one of the above-mentioned drop optical cables for FTTX is characterized in that the material of the sleeve body is plastic, and the sleeve body is integrally formed.
上述所述的任意一种用于FTTX的引入光缆，其特征在于所述加强元件还可为钢丝或玻璃纤维增强塑料或芳纶纱或玻璃纤维纱或者是复合体，所述复合体指内部为钢丝或玻璃纤维增强塑料或芳纶纱或玻璃纤维纱，外部为与管本体一样的塑料。 Any one of the above-mentioned lead-in optical cables for FTTX is characterized in that the reinforcing element can also be steel wire or glass fiber reinforced plastic or aramid yarn or glass fiber yarn or a composite body, and the composite body refers to an internal Steel wire or glass fiber reinforced plastic or aramid yarn or glass fiber yarn, the outside is the same plastic as the pipe body.
上述所述的任意一种用于FTTX的引入光缆，其特征还在于，在任一横截面上，沿任一开口的对称轴线方向，从开口外侧到开口内侧，开口的宽度是一样大的或者开口的宽度是逐渐增大的。 Any one of the above-mentioned lead-in cables for FTTX is further characterized in that, on any cross-section, along the direction of the axis of symmetry of any opening, from the outside of the opening to the inside of the opening, the width of the opening is the same or the width of the opening is the same. The width is gradually increased.
上述所述的任意一种用于FTTX的引入光缆，其特征在于所述光传输元件为光导纤维或光导纤维带或既有光导纤维又有光导纤维带。 Any one of the above-mentioned drop optical cables for FTTX is characterized in that the optical transmission element is an optical fiber or an optical fiber ribbon or both an optical fiber and an optical fiber ribbon.
进一步地，上述所述的任意一种用于FTTX的引入光缆，其特征在于所述光导纤维为单模光纤或多模光纤；所述光导纤维带中的光导纤维为单模光纤或多模光纤。 Further, any one of the above-mentioned drop optical cables for FTTX is characterized in that the optical fiber is a single-mode optical fiber or a multi-mode optical fiber; the optical fiber in the optical fiber ribbon is a single-mode optical fiber or a multi-mode optical fiber .
上述所述的任意一种用于FTTX的引入光缆，其特征在于所述护套层的材料为低密度聚乙烯或中密度聚乙烯或高密度聚乙烯或阻燃聚乙烯或低烟无卤聚乙烯或低烟低卤阻燃聚乙烯。 Any one of the above-mentioned lead-in cables for FTTX is characterized in that the material of the sheath layer is low-density polyethylene or medium-density polyethylene or high-density polyethylene or flame-retardant polyethylene or low-smoke halogen-free polyethylene. Ethylene or low-smoke low-halogen flame-retardant polyethylene.
上述所述的任意一种用于FTTX的引入光缆，其特征在于，套管体外螺旋包覆有防脱物质。 Any one of the above-mentioned lead-in optical cables for FTTX is characterized in that the outer casing is helically coated with a detachment-preventing substance.
进一步地，上述所述的任意一种用于FTTX的引入光缆，其特征在于所述防脱物质是聚酯带或聚酯纱或阻水带或阻水纱或芳纶纱或玻璃纤维纱或涤纶纱或锦纶纱。 Further, any one of the above-mentioned lead-in cables for FTTX is characterized in that the anti-shedding material is polyester tape or polyester yarn or water-blocking tape or water-blocking yarn or aramid yarn or glass fiber yarn or Polyester yarn or nylon yarn.
本发明中，由于从任一开口内侧沿该开口的对称轴线到容置腔室中心，容置腔室的宽度是逐渐增大的；以及沿任一开口的对称轴线方向，从开口外侧到开口内侧，开口的宽度是一样大的或者开口的宽度是逐渐增大的；因此，即使在套管体生产完成后，加强元件也极易从开口置入到容置腔室，且可填充饱满容置腔室；当然，也可以在生产套管体时，将加强元件直接置入容置腔室，这样大大节省了工序；而且加强件对称地分布在容置腔室中，因此，即使经过多次反复弯曲，卷绕，曲挠，反复施工，光缆的机械性能仍能保持一致，加强元件不会象平时的绞合方式一样会松散开。 In the present invention, the width of the accommodating chamber gradually increases from the inside of any opening along the axis of symmetry of the opening to the center of the accommodating chamber; and along the direction of the axis of symmetry of any opening, from the outside of the opening to the center of the opening On the inner side, the width of the opening is the same or the width of the opening is gradually increased; therefore, even after the production of the sleeve body is completed, the reinforcing element is very easy to be placed into the accommodation chamber from the opening, and the full volume can be filled. Of course, when the sleeve body is produced, the reinforcement elements can be placed directly into the accommodating chamber, which greatly saves the process; and the reinforcements are symmetrically distributed in the accommodating chamber, so even after many Repeated bending, winding, flexing, and repeated construction, the mechanical properties of the optical cable can still remain consistent, and the reinforcing elements will not loosen like the usual twisting method.
本发明中，套管体外螺旋包覆有防脱物质，更确保了加强元件不会从容置腔室中逸出，保证了光缆加强件分布的均匀性及光缆力学性能的一致性。 In the present invention, the outside of the casing is helically coated with the detachment-preventing substance, which further ensures that the reinforcing element will not escape from the accommodating chamber, and ensures the uniformity of the distribution of the optical cable reinforcement and the consistency of the mechanical properties of the optical cable.
本发明中，加强元件为复合体时，复合体指内部为钢丝或玻璃纤维增强塑料或芳纶纱或玻璃纤维纱，外部为与管本体一样的塑料；这样，在生产套管体时若加入加强元件，则加强元件可与套管本体粘结为一体，使加强元件很难从开口中逸出，即使不采用防脱物质也可达到使加强元件固定的目的。 In the present invention, when the reinforcing element is a composite body, the composite body refers to steel wire or glass fiber reinforced plastic or aramid yarn or glass fiber yarn inside, and the outside is the same plastic as the pipe body; in this way, if adding If the reinforcement element is used, the reinforcement element can be bonded with the casing body as a whole, so that the reinforcement element is difficult to escape from the opening, and the purpose of fixing the reinforcement element can be achieved even if no anti-detachment material is used.
本发明中，由于套管体是同塑料制成的，塑料具有相当高的韧性，因此，相邻的防护条可以小范围地分开与贴近，分开时有利于加强元件的置入，贴近时可以使防止加强元件的逸出；防脱物质可以使防护条相互贴近。 In the present invention, since the sleeve body is made of plastic, the plastic has relatively high toughness, therefore, the adjacent protective strips can be separated and brought close together in a small range. To prevent the escape of reinforcing elements; the anti-shedding material can make the protective strips close to each other.
本发明中，若加强元件可为光导纤维或光导纤维带，则可大大地提高光纤的密度，使其达到更大芯数的目的，而且，容置腔室中的光导纤维或光导纤维带极易被取出，用于分支接入，而且不会破坏套管体，产品可被灵活应用于FTTX引入中。 In the present invention, if the reinforcing element can be an optical fiber or an optical fiber ribbon, the density of the optical fiber can be greatly improved to achieve a larger number of cores, and the optical fiber or optical fiber ribbon in the accommodating chamber It is easy to be taken out for branch access without damaging the sleeve body, and the product can be flexibly used in FTTX introduction.
因此，本发明具有以下主要有益效果：纤芯密度更大，分支引入更方便，不需要复杂、昂贵的加强元件绞合设备，加强元件的固定更牢靠，生产工序更少，光缆外径更细，成本更低。 Therefore, the present invention has the following main beneficial effects: higher fiber core density, more convenient branch introduction, no need for complicated and expensive strengthening element stranding equipment, more reliable fixing of strengthening elements, fewer production processes, and thinner outer diameter of the optical cable , the cost is lower.
本发明不局限于上述最佳实施方式，应当理解，本发明的构思可以按其他种种形式实施运用，它们同样落在本发明的保护范围内。 The present invention is not limited to the best implementation mode above, it should be understood that the concept of the present invention can be implemented in other forms, and they also fall within the protection scope of the present invention.
Claims (2)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410224450.9A CN103955041B (en) | 2014-05-26 | 2014-05-26 | A kind of introducing optical cable for FTTX |
| CN201610199173.XA CN105652401B (en) | 2014-05-26 | 2014-05-26 | A kind of FTTX introducings optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410224450.9A CN103955041B (en) | 2014-05-26 | 2014-05-26 | A kind of introducing optical cable for FTTX |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610199173.XA Division CN105652401B (en) | 2014-05-26 | 2014-05-26 | A kind of FTTX introducings optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103955041A CN103955041A (en) | 2014-07-30 |
| CN103955041B true CN103955041B (en) | 2016-06-01 |
Family
ID=51332333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410224450.9A Active CN103955041B (en) | 2014-05-26 | 2014-05-26 | A kind of introducing optical cable for FTTX |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103955041B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104965279A (en) * | 2015-07-16 | 2015-10-07 | 成都亨通兆业精密机械有限公司 | Optical cable possessing voltage withstanding function |
| CN105301727A (en) * | 2015-09-23 | 2016-02-03 | 沈群华 | Anti-rat central loose tube type optical cable and manufacturing method thereof |
| CN113406758B (en) * | 2021-08-20 | 2021-10-29 | 江苏裕荣光电科技有限公司 | Halogen-free flame-retardant shielding prefabricated optical cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4327395A1 (en) * | 1993-08-14 | 1995-02-16 | Kwo Kabel Gmbh | Cable for laying in the subscriber connection region |
| CN2876811Y (en) * | 2006-03-09 | 2007-03-07 | 深圳市特发信息股份有限公司光缆分公司 | Skeleton type optical fiber band optical cable |
| CN102590968A (en) * | 2012-04-07 | 2012-07-18 | 常熟市谷雷特机械产品设计有限公司 | Skeleton type cable |
| CN203894452U (en) * | 2014-05-26 | 2014-10-22 | 沈群华 | Leading-in optical cable for FTTX |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07128557A (en) * | 1993-10-29 | 1995-05-19 | Sumitomo Electric Ind Ltd | Optical cable |
| JP3231200B2 (en) * | 1994-11-30 | 2001-11-19 | 株式会社フジクラ | Fiber optic cable |
| JP2010044359A (en) * | 2008-07-15 | 2010-02-25 | Mitsubishi Cable Ind Ltd | Optical cable and method of intermediate branching of the same |
-
2014
- 2014-05-26 CN CN201410224450.9A patent/CN103955041B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4327395A1 (en) * | 1993-08-14 | 1995-02-16 | Kwo Kabel Gmbh | Cable for laying in the subscriber connection region |
| CN2876811Y (en) * | 2006-03-09 | 2007-03-07 | 深圳市特发信息股份有限公司光缆分公司 | Skeleton type optical fiber band optical cable |
| CN102590968A (en) * | 2012-04-07 | 2012-07-18 | 常熟市谷雷特机械产品设计有限公司 | Skeleton type cable |
| CN203894452U (en) * | 2014-05-26 | 2014-10-22 | 沈群华 | Leading-in optical cable for FTTX |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103955041A (en) | 2014-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104062732B (en) | A kind of self-supporting cable being easily assembled to | |
| KR100442620B1 (en) | Distribution optical cable | |
| CN103852845A (en) | Special-shaped full-medium high-intensive-type introduced optical fiber and cable and manufacturing method thereof | |
| CN103955041B (en) | A kind of introducing optical cable for FTTX | |
| CN101546019A (en) | UV optical cable | |
| CN211265108U (en) | 5G communication base station is with amalgamation structure optical cable and cable | |
| US8559778B2 (en) | High density multifiber interconnect cable | |
| CN105676397A (en) | Optical cable with external symmetrical reinforcements | |
| US20230213716A1 (en) | Ribbed and grooved sheath for optical fiber cable | |
| KR101395474B1 (en) | Fiber optic cable | |
| CN104867586A (en) | Photoelectric composite cable | |
| CN104216080A (en) | Super-high-density central tube cable | |
| CN106847389A (en) | A kind of optoelectrical cable | |
| CN103971840B (en) | Photovoltaic composite cable for power system | |
| CN207488585U (en) | A kind of stainless steel tube layer-stranding cable | |
| CN104793305B (en) | Central-beam tube type fiber optic cable and preparation method | |
| CN104751981B (en) | A kind of optoelectronic composite cable with special-shaped packing gasket | |
| CN207488580U (en) | A kind of double jacketed cables of stainless steel tube wire armoring | |
| WO2012036031A1 (en) | Plastic optical fiber unit and plastic optical fiber cable using same | |
| CN209231580U (en) | A kind of flexible armored duct optical cable and its components | |
| CN111142205A (en) | Special-shaped structure optical cable and special-shaped structure cable | |
| CN105374456A (en) | Photoelectric composite cable | |
| CN205844597U (en) | Central tubular fire-retardant cable | |
| CN203825262U (en) | Enhanced flame-retardant field cable | |
| CN211086702U (en) | Anti-shrinkage loose tube based on thermoplastic reinforcing wire MFR |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Yonggang Inventor after: Lu Xingwang Inventor after: Chen Yibo Inventor after: Zhou Zichao Inventor after: Lu Jingxiang Inventor after: Xu Yanbo Inventor after: Liu Xiangbo Inventor after: Liu Changfeng Inventor after: Han Bangdong Inventor after: Wang Jiawu Inventor after: Leng Bing Inventor after: Zhao Dianyun Inventor before: Shen Qunhua |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160503 Address after: 276800 Rizhao City, Donggang Province, Yantai Road, No. 68 State Grid Shandong electric power company Rizhao Power Company Applicant after: Rizhao Power Supply Company of State Grid Shandong Province Electric Power Company Applicant after: State Grid Corporation of China Address before: Suzhou City, Jiangsu Province, 215554 Changshou City Shang Hu Zhen Da he Cun Shen Tang Wan Tao (28) No. 79 Applicant before: Shen Qunhua |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |