WO2023108309A1 - Multi-core pressure-resistant optical cable - Google Patents
Multi-core pressure-resistant optical cable Download PDFInfo
- Publication number
- WO2023108309A1 WO2023108309A1 PCT/CN2021/137315 CN2021137315W WO2023108309A1 WO 2023108309 A1 WO2023108309 A1 WO 2023108309A1 CN 2021137315 W CN2021137315 W CN 2021137315W WO 2023108309 A1 WO2023108309 A1 WO 2023108309A1
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- WO
- WIPO (PCT)
- Prior art keywords
- optical fiber
- sheath
- jacket
- pressure
- optical cable
- Prior art date
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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
Definitions
- the utility model relates to the technical field of optical cables, in particular to a multi-core anti-pressure optical cable.
- Optical cable is a communication cable assembly that uses multiple optical fibers placed in a sheath as the transmission medium. In today's society with the rapid development of the Internet, optical cables are widely used.
- the purpose of the utility model is to provide a multi-core anti-pressure optical cable, which improves the anti-pressure performance of the optical cable and reduces the problem of being flattened and damaged.
- a multi-core pressure-proof optical cable comprising: an optical fiber unit and a sheath, wherein a through hole is concentrically arranged in the sheath, and the optical fiber units are respectively pre-embedded in the inner wall of the sheath along the length direction of the sheath, and the optical fiber unit includes An optical fiber and a loose tube, the optical fiber is arranged in the loose tube, the annular array of the optical fiber units is distributed around the through hole, and the sheath is provided with an arc groove between the optical fiber unit and the outer circle of the sheath. The arc groove extends along the length direction of the sheath.
- a central reinforcing core is arranged in the through hole.
- the central reinforcing core adopts steel wire.
- the arc groove is concentric with the through hole.
- the loose tube is filled with fiber paste.
- the sheath adopts a polyethylene sheath.
- a multi-core anti-pressure optical cable specially designed arc grooves in the inner wall of the sheath, using the arc grooves corresponding to the optical fiber units one by one to carry out elastic deformation when the sheath is squeezed, Realize the pressure buffer, reduce the damage of the optical fiber unit, and strengthen the anti-pressure protection of the optical cable.
- Fig. 1 is the structural representation of the utility model
- Fig. 2 is another structural schematic diagram of the utility model.
- a multi-core pressure-proof optical cable includes: an optical fiber unit and a sheath 1, and a through hole 3 is concentrically arranged in the sheath 1 to reduce its own weight. Elastic deformation is carried out when the extrusion force is applied to achieve pressure buffering.
- the sheath 1 is made of polyethylene sheath.
- the polyethylene sheath is extruded and has good waterproof and insulation effects. It is also resistant to low temperature, has low water absorption, and has certain toughness. It can be bent for flexible construction of optical cables.
- optical fiber units are pre-embedded in the inner wall of the sheath 1 along the length direction of the sheath respectively, and the optical fiber units include an optical fiber 5 and a loose tube 4, and a plurality of optical fibers 5 are respectively arranged in the loose tube 4,
- the performance of communication transmission has been improved.
- the loose tube 4 is filled with fiber paste, and the optical fiber 5 is waterproofed and resistant to hydrogen evolution through the fiber paste.
- the circular array of four optical fiber units is distributed around the through hole 3, and the sheath 1 is provided with an arc groove 2 between the optical fiber unit and the outer circle of the sheath 1, and the arc groove 2 is along the length direction of the sheath 1
- the arc groove 2 corresponds to the optical fiber unit.
- the arc grooves 2 are concentric with the through hole 3 , the arc grooves 2 are evenly distributed, and can withstand extrusion forces from multiple directions.
- a central reinforcing core 6 is provided in the through hole 3 to improve the tensile performance of the sheath 1.
- the central reinforcing core 6 is made of steel wire , high structural strength, good tensile effect.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Provided is a multi-core pressure-resistant optical cable, comprising: optical fiber units and a jacket (1), wherein a through hole (3) is concentrically formed in the jacket (1); the optical fiber units are respectively pre-embedded in an inner wall of the jacket (1) in a lengthwise direction of the jacket (1), each optical fiber unit comprising an optical fiber (5) and a loose tube (4), and the optical fiber (5) being arranged in the loose tube (4); the optical fiber units are distributed around the through hole (3) in an annular array; and the jacket (1) is provided with arc slots (2) located between the optical fiber units and an outer circle of the jacket (1), the arc slots (2) extending in the lengthwise direction of the jacket (1). In the multi-core pressure-resistant optical cable, the arc slots (2) are specially designed in the inner wall of the jacket (1), and the arc slots (2) corresponding to the optical fiber units on a one-to-one basis will elastically deform when the jacket (1) is squeezed, such that pressure buffering is achieved in order to reduce damage to the optical fiber units, thereby strengthening the pressure-resistant protection of the optical cable.
Description
本实用新型涉及光缆技术领域,尤其涉及一种多芯防压光缆。The utility model relates to the technical field of optical cables, in particular to a multi-core anti-pressure optical cable.
光缆是利用置于包覆护套中的多根光纤作为传输媒质的通信线缆组件,在互联网飞速发展的当今社会,光缆的使用比较广泛。Optical cable is a communication cable assembly that uses multiple optical fibers placed in a sheath as the transmission medium. In today's society with the rapid development of the Internet, optical cables are widely used.
各行各业都离不开互联网,因此光缆需要安装在各种使用环境下,复杂的使用环境,对光缆的抗拉和抗压能力提出了更高的要求。现有技术中,多采用加强芯进行光缆的抗拉增强,但是忽视了抗压能力,在使用过程中,光缆往往容易被压扁而损坏,需要改进。All walks of life are inseparable from the Internet, so optical cables need to be installed in various usage environments, and complex usage environments put forward higher requirements for the tensile and compressive capabilities of optical cables. In the prior art, strengthening cores are often used to strengthen the tensile strength of the optical cable, but the compressive capacity is ignored. During use, the optical cable is often easily crushed and damaged, which needs to be improved.
实用新型内容Utility model content
本实用新型的目的在于提供一种多芯防压光缆,提升光缆的防压性能,减少被压扁损坏的问题。The purpose of the utility model is to provide a multi-core anti-pressure optical cable, which improves the anti-pressure performance of the optical cable and reduces the problem of being flattened and damaged.
为达此目的,本实用新型采用以下技术方案:For this purpose, the utility model adopts the following technical solutions:
一种多芯防压光缆,包括:光纤单元和护套,所述护套中同心设置有通孔,所述光纤单元分别沿护套长度方向预埋在护套内壁中,所述光纤单元包括光纤和松套管,所述光纤设置在松套管内,所述光纤单元环形阵列分布在通孔四周,所述护套中设置有位于光纤单元与护套外圆之间的圆弧槽,所述圆弧槽沿护套长度方向延伸。A multi-core pressure-proof optical cable, comprising: an optical fiber unit and a sheath, wherein a through hole is concentrically arranged in the sheath, and the optical fiber units are respectively pre-embedded in the inner wall of the sheath along the length direction of the sheath, and the optical fiber unit includes An optical fiber and a loose tube, the optical fiber is arranged in the loose tube, the annular array of the optical fiber units is distributed around the through hole, and the sheath is provided with an arc groove between the optical fiber unit and the outer circle of the sheath. The arc groove extends along the length direction of the sheath.
其中,所述通孔中设置有中心加强芯。Wherein, a central reinforcing core is arranged in the through hole.
其中,所述中心加强芯采用钢丝。Wherein, the central reinforcing core adopts steel wire.
其中,所述圆弧槽与通孔相同心。Wherein, the arc groove is concentric with the through hole.
其中,所述松套管内填充有纤膏。Wherein, the loose tube is filled with fiber paste.
其中,所述护套采用聚乙烯护套。Wherein, the sheath adopts a polyethylene sheath.
本实用新型的有益效果:一种多芯防压光缆,在护套内壁中特别设计了圆弧槽,利用与光纤单元一一对应的圆弧槽在护套受到挤压力时进行弹性形变,实现压力的缓冲,减少光纤单元的损坏,加强了光缆的防压保护。Beneficial effects of the utility model: a multi-core anti-pressure optical cable, specially designed arc grooves in the inner wall of the sheath, using the arc grooves corresponding to the optical fiber units one by one to carry out elastic deformation when the sheath is squeezed, Realize the pressure buffer, reduce the damage of the optical fiber unit, and strengthen the anti-pressure protection of the optical cable.
图1是本实用新型的结构示意图;Fig. 1 is the structural representation of the utility model;
图2是本实用新型的另一结构示意图。Fig. 2 is another structural schematic diagram of the utility model.
下面结合图1至图2并通过具体实施例来进一步说明本实用新型的技术方案。The technical scheme of the utility model will be further described below in conjunction with Fig. 1 to Fig. 2 and through specific embodiments.
实施例1:Example 1:
如图1所示,一种多芯防压光缆,包括:光纤单元和护套1,所述护套1中同心设置有通孔3,降低了自重,通孔3还可以在护套1受到挤压力时进行弹性形变,实现压力的缓冲。As shown in Figure 1, a multi-core pressure-proof optical cable includes: an optical fiber unit and a sheath 1, and a through hole 3 is concentrically arranged in the sheath 1 to reduce its own weight. Elastic deformation is carried out when the extrusion force is applied to achieve pressure buffering.
所述护套1采用聚乙烯护套,聚乙烯护套采用挤出成型,防水和绝缘的效果好,而且耐低温,吸水性小,具有一定的韧性,可以弯曲进行光缆的灵活施工。The sheath 1 is made of polyethylene sheath. The polyethylene sheath is extruded and has good waterproof and insulation effects. It is also resistant to low temperature, has low water absorption, and has certain toughness. It can be bent for flexible construction of optical cables.
在本申请中,4根光纤单元分别沿护套长度方向预埋在护套1内壁中,所述光纤单元包括光纤5和松套管4,多根光纤5分别设置在松套管4内,提升了通信传输的性能。所述松套管4内填充有纤膏, 通过纤膏进行光纤5的防水和抗析氢。In this application, four optical fiber units are pre-embedded in the inner wall of the sheath 1 along the length direction of the sheath respectively, and the optical fiber units include an optical fiber 5 and a loose tube 4, and a plurality of optical fibers 5 are respectively arranged in the loose tube 4, The performance of communication transmission has been improved. The loose tube 4 is filled with fiber paste, and the optical fiber 5 is waterproofed and resistant to hydrogen evolution through the fiber paste.
4根光纤单元环形阵列分布在通孔3四周,所述护套1中设置有位于光纤单元与护套1外圆之间的圆弧槽2,所述圆弧槽2沿护套1长度方向延伸,进一步降低自重,在本实施例中,圆弧槽2与光纤单元一样对应,护套1受到挤压力时圆弧槽2进行弹性形变,与通孔3一起,进行压力的缓冲,减少光纤单元的损坏。The circular array of four optical fiber units is distributed around the through hole 3, and the sheath 1 is provided with an arc groove 2 between the optical fiber unit and the outer circle of the sheath 1, and the arc groove 2 is along the length direction of the sheath 1 In this embodiment, the arc groove 2 corresponds to the optical fiber unit. When the sheath 1 is squeezed, the arc groove 2 undergoes elastic deformation, and together with the through hole 3, it buffers the pressure and reduces the Damage to the fiber optic unit.
在本实施例中,所述圆弧槽2与通孔3相同心,圆弧槽2分布均匀,可以承受多个方向的挤压力。In this embodiment, the arc grooves 2 are concentric with the through hole 3 , the arc grooves 2 are evenly distributed, and can withstand extrusion forces from multiple directions.
实施例2:Example 2:
如图2所示,在实施例1的基础上,所述通孔3中设置有中心加强芯6,提升护套1的抗拉性能,在本实施例中,所述中心加强芯6采用钢丝,结构强度高,抗拉效果好。As shown in Figure 2, on the basis of Embodiment 1, a central reinforcing core 6 is provided in the through hole 3 to improve the tensile performance of the sheath 1. In this embodiment, the central reinforcing core 6 is made of steel wire , high structural strength, good tensile effect.
以上内容仅为本实用新型的较佳实施例,对于本领域的普通技术人员,依据本实用新型的思想,在具体实施方式及应用范围上均会有改变之处,本说明书内容不应理解为对本实用新型的限制。The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.
Claims (6)
- 一种多芯防压光缆,其特征在于,包括:光纤单元和护套,所述护套中同心设置有通孔,所述光纤单元分别沿护套长度方向预埋在护套内壁中,所述光纤单元包括光纤和松套管,所述光纤设置在松套管内,所述光纤单元环形阵列分布在通孔四周,所述护套中设置有位于光纤单元与护套外圆之间的圆弧槽,所述圆弧槽沿护套长度方向延伸。A multi-core pressure-proof optical cable, characterized in that it includes: an optical fiber unit and a sheath, wherein a through hole is concentrically arranged in the sheath, and the optical fiber units are respectively pre-embedded in the inner wall of the sheath along the length direction of the sheath. The optical fiber unit includes an optical fiber and a loose tube, the optical fiber is arranged in the loose tube, the annular array of the optical fiber unit is distributed around the through hole, and a circle between the optical fiber unit and the outer circle of the sheath is arranged in the sheath an arc groove, and the arc groove extends along the length direction of the sheath.
- 根据权利要求1所述的多芯防压光缆,其特征在于,所述通孔中设置有中心加强芯。The multi-core anti-pressure optical cable according to claim 1, wherein a central strengthening core is arranged in the through hole.
- 根据权利要求2所述的多芯防压光缆,其特征在于,所述中心加强芯采用钢丝。The multi-core anti-pressure optical cable according to claim 2, wherein the central strengthening core is made of steel wire.
- 根据权利要求1所述的多芯防压光缆,其特征在于,所述圆弧槽与通孔相同心。The multi-core anti-pressure optical cable according to claim 1, characterized in that, the arc groove is concentric with the through hole.
- 根据权利要求1所述的多芯防压光缆,其特征在于,所述松套管内填充有纤膏。The multi-core anti-pressure optical cable according to claim 1, wherein the loose tube is filled with fiber paste.
- 根据权利要求1所述的多芯防压光缆,其特征在于,所述护套采用聚乙烯护套。The multi-core anti-pressure optical cable according to claim 1, wherein the sheath is a polyethylene sheath.
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CN210376805U (en) * | 2019-09-22 | 2020-04-21 | 湖北凯乐科技股份有限公司 | Flexible central tube type ribbon optical cable |
CN113253408A (en) * | 2021-05-27 | 2021-08-13 | 江苏华脉光电科技有限公司 | Flexible flat optical cable and preparation method thereof |
CN214174709U (en) * | 2021-02-26 | 2021-09-10 | 江苏华脉新材料有限公司 | Multi-core pressure-proof optical cable |
CN214409396U (en) * | 2021-03-16 | 2021-10-15 | 江苏华脉新材料有限公司 | Light weight-reducing optical cable |
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2021
- 2021-12-13 WO PCT/CN2021/137315 patent/WO2023108309A1/en unknown
Patent Citations (8)
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US20150268427A1 (en) * | 2014-03-19 | 2015-09-24 | Corning Optical Communications LLC | Fiber optic cable with large-diameter optical fibers |
CN205484973U (en) * | 2016-03-25 | 2016-08-17 | 苏州胜信光电科技有限公司 | Anti extruded optical cable of filled type |
CN208239683U (en) * | 2018-03-30 | 2018-12-14 | 江苏南方通信科技有限公司 | A kind of lateral pressure resistant optical cable |
CN209858795U (en) * | 2019-04-25 | 2019-12-27 | 深圳长飞智连技术有限公司 | Optical cable structure |
CN210376805U (en) * | 2019-09-22 | 2020-04-21 | 湖北凯乐科技股份有限公司 | Flexible central tube type ribbon optical cable |
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CN214409396U (en) * | 2021-03-16 | 2021-10-15 | 江苏华脉新材料有限公司 | Light weight-reducing optical cable |
CN113253408A (en) * | 2021-05-27 | 2021-08-13 | 江苏华脉光电科技有限公司 | Flexible flat optical cable and preparation method thereof |
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