CN113703106A - Optical cable - Google Patents
Optical cable Download PDFInfo
- Publication number
- CN113703106A CN113703106A CN202110850930.6A CN202110850930A CN113703106A CN 113703106 A CN113703106 A CN 113703106A CN 202110850930 A CN202110850930 A CN 202110850930A CN 113703106 A CN113703106 A CN 113703106A
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- Prior art keywords
- optical cable
- rib
- sheath
- along
- trapezoidal
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Classifications
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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
- G02B6/441—Optical cables built up from sub-bundles
-
- 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
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Communication Cables (AREA)
Abstract
The invention belongs to the field of cables, and particularly relates to an optical cable. It includes: the optical fiber cable comprises an outer sheath, an inner sheath and a bundle pipe which are sequentially arranged from outside to inside, wherein the outer sheath is arranged outside the inner sheath, the inner sheath is arranged outside the bundle pipe, and a plurality of optical fiber wires arranged along the axial direction of the optical fiber cable are arranged in the bundle pipe; the contact surface of the outer sheath and the inner sheath is in toothed meshing contact; a plurality of outer rib structures protruding inwards are uniformly distributed on the inner surface of the outer sheath along the circumferential direction of the optical cable on the radial section of the optical cable, and the outer ribs are trapezoidal on the radial section of the optical cable; rib grooves which are outward along the radial direction are arranged between the outer rib structures of the outer sheath; the surface of inner sheath is equipped with the interior rib with rib groove looks adaptation, and the outer end butt rib groove of interior rib. The optical cable can effectively avoid the optical cable from being directly acted by external force, has higher flexibility and smaller specific gravity, and is convenient to transport and erect.
Description
Technical Field
The invention belongs to the field of cables, and particularly relates to an optical cable.
Background
Optical fiber cables (optical fiber cables) are manufactured to meet optical, mechanical, or environmental performance specifications and are telecommunication cable assemblies that utilize one or more optical fibers disposed in a surrounding jacket as the transmission medium and that may be used individually or in groups.
For optical cables, the pressure resistance is a very important property. At present, the mode of improving the pressure resistance of the optical cable is mostly to coat a plurality of layers of rigid or hard structural layers outside the optical fiber so as to prevent the optical fiber from being damaged due to pressure. However, the structure can cause the specific gravity of the optical cable to be greatly improved, and is not beneficial to the overhead arrangement of the optical cable. Meanwhile, the protection piece with the rigid structure is adopted, the optical fiber in the optical cable still inevitably can be directly acted by external force, and the actual protection effect is relatively limited.
Disclosure of Invention
The invention provides an optical cable, aiming at solving the problems that the existing optical cable has limited compression resistance, the traditional compression-resistant structures are rigid structures, and the optical fiber is still easily and directly subjected to external force in the actual use process.
The invention aims to:
firstly, an optical cable with excellent pressure resistance is provided;
secondly, the optical fiber can be prevented from being directly stressed through the improvement of the structure;
and thirdly, reducing the specific gravity of the optical cable through a flexible compression-resistant structure.
In order to achieve the purpose, the invention adopts the following technical scheme:
an optical cable, comprising:
the optical fiber cable comprises an outer sheath, an inner sheath and a bundle pipe which are sequentially arranged from outside to inside, wherein the outer sheath is arranged outside the inner sheath, the inner sheath is arranged outside the bundle pipe, and a plurality of optical fiber wires arranged along the axial direction of the optical fiber cable are arranged in the bundle pipe;
the contact surface of the outer sheath and the inner sheath is in toothed meshing contact;
a plurality of outer rib structures protruding inwards are uniformly distributed on the inner surface of the outer sheath along the circumferential direction of the optical cable on the radial section of the optical cable, and the outer ribs are trapezoidal on the radial section of the optical cable;
rib grooves which are outward along the radial direction are arranged between the outer rib structures of the outer sheath;
the surface of inner sheath is equipped with the interior rib with rib groove looks adaptation, and the outer end butt rib groove of interior rib.
As a preference, the first and second liquid crystal compositions are,
the outer rib structure is in a trapezoid shape with the same upper bottom and two equal waists on the radial section of the optical cable.
As a preference, the first and second liquid crystal compositions are,
the rib groove is provided with a trapezoidal opening on the radial section;
the trapezoidal opening faces inward in the radial direction of the optical cable.
As a preference, the first and second liquid crystal compositions are,
the outer rib is internally provided with a trapezoidal cavity along the axial direction of the optical cable, the trapezoidal cavity is in an isosceles trapezoid shape with an inward upper bottom on the radial cross section of the optical cable, and two waists of the trapezoidal cavity are parallel to two side faces of the outer rib.
As a preference, the first and second liquid crystal compositions are,
the end part of the inner rib is provided with a hexagonal cavity matched with the inner rib.
As a preference, the first and second liquid crystal compositions are,
a reinforcing piece is arranged in the hexagonal cavity along the axial direction of the optical cable;
the radial section of the optical cable of the reinforcing part is of a Y-shaped structure with three side ribs;
the three side ribs are respectively abutted to the inner side walls at intervals of the hexagonal cavities, two side ribs face to two trapezoidal cavities adjacent to the hexagonal cavities along the circumferential direction of the optical cable, and the other side rib faces outwards along the radial direction of the optical cable
As a preference, the first and second liquid crystal compositions are,
the included angle between every two of the three side ribs is 120 degrees.
As a preference, the first and second liquid crystal compositions are,
in the hexagonal cavity, a hollow elastic tube is arranged between every two adjacent side ribs.
As a preference, the first and second liquid crystal compositions are,
the reinforcing piece is made of PE.
The invention has the beneficial effects that:
1) the optical cable can be effectively prevented from being directly acted by external force;
2) the optical cable has good compression resistance;
3) the optical cable has higher flexibility and smaller specific gravity, and is convenient to transport and erect.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a force diagram of a fiber optic cable according to the present invention;
FIG. 3 is a schematic view of another force for a fiber optic cable according to the present invention;
FIG. 4 is a schematic view of the tooth-like engagement of the cable under the action of the strength members;
in the figure: 100 outer sheath, 101 outer rib, 102 ladder-shaped cavity, 103 rib groove, 200 inner sheath, 201 inner rib, 202 hexagonal cavity, 300 bundle tube, 400 single mode fiber or multimode fiber or fiber bundle, 500 reinforcer, 600 hollow elastic tube.
The specific implementation mode is as follows:
the invention is described in further detail below with reference to specific embodiments and the attached drawing figures. Those skilled in the art will be able to implement the invention based on these teachings. Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Unless otherwise specified, the raw materials used in the examples of the present invention are all commercially available or available to those skilled in the art; unless otherwise specified, the methods used in the examples of the present invention are all those known to those skilled in the art.
Examples
An optical cable as shown in fig. 1, which specifically comprises:
the optical fiber cable comprises an outer sheath 100, an inner sheath 200 and a bundle pipe 300 which are sequentially arranged from outside to inside, wherein the outer sheath 100 is arranged outside the inner sheath 200, the inner sheath 200 is arranged outside the bundle pipe 300, and a plurality of optical fiber wires arranged along the axial direction of the optical fiber cable are arranged in the bundle pipe 300;
the optical fiber line is a single mode optical fiber or a multimode optical fiber or an optical fiber bundle 400;
the contact surface of the outer sheath 100 and the inner sheath 200 is in toothed meshing contact;
in particular, the method comprises the following steps of,
six outer rib 101 structures protruding inwards are uniformly distributed on the inner surface of the outer sheath 100 along the circumferential direction of the optical cable on the radial cross section of the optical cable, each outer rib 101 structure is in a half regular hexagon shape on the radial cross section of the optical cable, specifically, each outer rib 101 is in a trapezoid shape with an upper bottom and two equal waists, a trapezoid cavity 102 along the axial direction of the optical cable is arranged in each outer rib 101, each trapezoid cavity 102 is in an isosceles trapezoid shape with an upper bottom facing inwards on the radial cross section of the optical cable, the two waists are parallel to two side faces of each outer rib 101, specifically, the upper bottom of each trapezoid cavity 102 is equal to the two waists, and the length of the lower bottom is twice of that of the upper bottom in the embodiment;
a rib groove 103 which is outward along the radial direction is arranged between the outer rib 101 structures of the outer sheath 100, the rib groove 103 is a trapezoid opening on the radial section, specifically, the radial section of the trapezoid opening is an isosceles trapezoid, the upper bottom of the trapezoid opening faces outward, and the trapezoid opening is equal to the two waist parts;
the outer surface of the inner sheath 200 is provided with an inner rib 201 matched with the rib groove 103, the outer end of the inner rib 201 is abutted against the rib groove 103, and the end part of the inner rib 201 is provided with a hexagonal cavity 202 matched with the inner rib;
under the cooperation of the structure, the optical cable can generate excellent compression-resistant effect.
In particular, the method comprises the following steps of,
when the optical cable is stressed by radial pressure, the main stress conditions are as follows;
as shown in fig. 2, when the outer rib 101 is used as a main force-bearing portion, under the action of an external force F1, the upper bottom and the lower bottom of the trapezoidal cavity 102 are compressed along the a direction, the trapezoidal cavity 102 generates a squeezing action on the inner rib 201 along the b direction towards the two waist directions towards the two sides, so that the hexagonal cavity 202 is compressed along the b direction, and a good buffering and pressure-resisting effect can be achieved through the deformation of the trapezoidal cavity 102 and the hexagonal cavity 202, and meanwhile, the force can be prevented from being directly transmitted to the beam tube 300, and the transmission of the external force is blocked;
as shown in fig. 3, when the rib groove 103 is used as a main stress part and is acted by an external force F2, firstly, the stress of the outer sheath 100 is internally transmitted to the inner rib 201 part of the inner sheath 200, the inner rib 201 part is compressed along the c direction due to the existence of the hexagonal cavity 202, the upper side and the lower side of the hexagonal cavity 202 generate an acting force along the d direction on the two sides, the acting force acts on the ladder-shaped cavity 102 of the outer rib 101 to drive the ladder-shaped cavity 102 to be compressed and deformed along the d direction, the sufficient buffering of the external acting force can be realized through the deformation, and the conduction of the external force can be also blocked due to the existence of the hexagonal cavity 202;
under the matching of the structures, no matter which direction the outside of the optical cable is stressed, a good external force blocking effect can be actually generated, and meanwhile, the hexagonal cavity 202 and the trapezoidal cavity 102 can realize matching and buffering, so that the compression resistance of the optical cable can be remarkably improved;
in addition, the shape matching of the outer rib 101, the inner rib 201 and the rib groove 103 is also indispensable, and tests prove that the compression resistance of the optical cable is obviously weakened under the condition that the outer rib 101, the inner rib 201 and the rib groove 103 adopt triangular matching or rectangular matching or arc matching,
the trapezoidal cavity 102 and the hexagonal cavity 202 selected by the invention have good structural stability and support stability, can improve the roundness of the optical cable, are easy to recover after being extruded and deformed, and can effectively maintain the compression resistance of the optical cable for a longer time.
Further, in the above-mentioned case,
the hexagonal cavity 202 is internally provided with a PE (polyethylene) reinforcing piece 500 along the axial direction of the optical cable, the reinforcing piece 500 is of a Y-shaped structure with three side ribs on the radial section of the optical cable, the three side ribs are circumferentially and uniformly distributed by taking the geometric center of the reinforcing piece 500 as an axis, and the included angle between every two side ribs is 120 degrees;
the three side ribs are respectively abutted against alternate inner side walls of the hexagonal cavities 202, wherein two side ribs face two trapezoidal cavities 102 adjacent to the hexagonal cavities 202 along the circumferential direction of the optical cable, and the other side rib faces outwards along the radial direction of the optical cable;
through the setting of above-mentioned reinforcement 500, when optical cable rib groove 103 direction atress, can further improve the compressive resistance effect of conduct, form the guide force along optical cable circumference behind the side rib atress through radial setting, specifically as shown in fig. 4, receive effort F2 effect, when the side was compressed along the c direction about hexagonal chamber 202, produce the guide force along the e direction under reinforcement 500 effect, more effectively directly act on trapezoidal chamber 102, make trapezoidal chamber 102 can be more fully through the mode buffering of deformation, weaken external force, improve the coordination nature of hexagonal chamber 202 and trapezoidal chamber 102 greatly.
In a still further aspect of the present invention,
in hexagonal chamber 202, still be equipped with cavity elastic tube 600 between two liang of adjacent side ribs of reinforcement 500, cavity elastic tube 600's setting can show the deformation buffering effect of reinforceing the optical cable, realizes multi-level deformation buffering for the compressive property of optical cable obtains showing the promotion.
Claims (9)
1. An optical cable, comprising:
the optical fiber cable comprises an outer sheath, an inner sheath and a bundle pipe which are sequentially arranged from outside to inside, wherein the outer sheath is arranged outside the inner sheath, the inner sheath is arranged outside the bundle pipe, and a plurality of optical fiber wires arranged along the axial direction of the optical fiber cable are arranged in the bundle pipe;
the contact surface of the outer sheath and the inner sheath is in toothed meshing contact;
a plurality of outer rib structures protruding inwards are uniformly distributed on the inner surface of the outer sheath along the circumferential direction of the optical cable on the radial section of the optical cable, and the outer ribs are trapezoidal on the radial section of the optical cable;
rib grooves which are outward along the radial direction are arranged between the outer rib structures of the outer sheath;
the surface of inner sheath is equipped with the interior rib with rib groove looks adaptation, and the outer end butt rib groove of interior rib.
2. An optical cable according to claim 1,
the outer rib structure is in a trapezoid shape with the same upper bottom and two equal waists on the radial section of the optical cable.
3. An optical cable according to claim 1,
the rib groove is provided with a trapezoidal opening on the radial section;
the trapezoidal opening faces inward in the radial direction of the optical cable.
4. An optical cable according to claim 1,
the outer rib is internally provided with a trapezoidal cavity along the axial direction of the optical cable, the trapezoidal cavity is in an isosceles trapezoid shape with an inward upper bottom on the radial cross section of the optical cable, and two waists of the trapezoidal cavity are parallel to two side faces of the outer rib.
5. An optical cable according to claim 1,
the end part of the inner rib is provided with a hexagonal cavity matched with the inner rib.
6. An optical cable according to claim 1,
a reinforcing piece is arranged in the hexagonal cavity along the axial direction of the optical cable;
the radial section of the optical cable of the reinforcing part is of a Y-shaped structure with three side ribs;
the three side ribs are respectively abutted to the inner side walls at intervals of the hexagonal cavities, two side ribs face to two trapezoidal cavities adjacent to the hexagonal cavities along the circumferential direction of the optical cable, and the other side rib faces outwards along the radial direction of the optical cable
7. An optical cable according to claim 6,
the included angle between every two of the three side ribs is 120 degrees.
8. An optical cable according to claim 6,
in the hexagonal cavity, a hollow elastic tube is arranged between every two adjacent side ribs.
9. Optical cable according to any one of claims 6 to 8,
the reinforcing piece is made of PE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110850930.6A CN113703106A (en) | 2021-07-27 | 2021-07-27 | Optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110850930.6A CN113703106A (en) | 2021-07-27 | 2021-07-27 | Optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113703106A true CN113703106A (en) | 2021-11-26 |
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ID=78650797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110850930.6A Withdrawn CN113703106A (en) | 2021-07-27 | 2021-07-27 | Optical cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN113703106A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325974A (en) * | 2021-12-02 | 2022-04-12 | 杭州富通通信技术股份有限公司 | Compression-resistant damping optical cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060159408A1 (en) * | 2003-02-19 | 2006-07-20 | Kwang-Il Kim | All-dielectric, self-supporting, loose-tube optical fiber cable |
| CN101943777A (en) * | 2009-07-08 | 2011-01-12 | 江苏通光光电子有限公司 | Side pressure resistant submarine optical fiber cable core |
| CN106154453A (en) * | 2016-07-07 | 2016-11-23 | 成都迪谱光电科技有限公司 | The antitorque optical cable that a kind of mechanical strength is high |
| CN208141888U (en) * | 2018-05-23 | 2018-11-23 | 四川金开特种电线电缆有限公司 | A kind of compact stable buried cable |
| CN209525494U (en) * | 2019-03-26 | 2019-10-22 | 江苏万华通信科技有限公司 | A kind of layer-stranding cable that waterproofness is high |
| CN110596835A (en) * | 2019-08-27 | 2019-12-20 | 苏州胜信光电科技有限公司 | Tensile lightning protection optical cable for base station iron tower |
| CN210376806U (en) * | 2019-09-22 | 2020-04-21 | 湖北凯乐科技股份有限公司 | Loose tube layer-stranded photoelectric mixed optical cable |
| CN111781689A (en) * | 2020-07-27 | 2020-10-16 | 杭州富通通信技术股份有限公司 | Optical cable |
| CN211719337U (en) * | 2019-12-31 | 2020-10-20 | 浙江联杰科技有限公司 | Environment-friendly anti-press photoelectric composite cable |
| CN112037979A (en) * | 2020-08-25 | 2020-12-04 | 杭州富通通信技术股份有限公司 | 5G is with mixed cable of resistance to compression photoelectricity |
-
2021
- 2021-07-27 CN CN202110850930.6A patent/CN113703106A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060159408A1 (en) * | 2003-02-19 | 2006-07-20 | Kwang-Il Kim | All-dielectric, self-supporting, loose-tube optical fiber cable |
| CN101943777A (en) * | 2009-07-08 | 2011-01-12 | 江苏通光光电子有限公司 | Side pressure resistant submarine optical fiber cable core |
| CN106154453A (en) * | 2016-07-07 | 2016-11-23 | 成都迪谱光电科技有限公司 | The antitorque optical cable that a kind of mechanical strength is high |
| CN208141888U (en) * | 2018-05-23 | 2018-11-23 | 四川金开特种电线电缆有限公司 | A kind of compact stable buried cable |
| CN209525494U (en) * | 2019-03-26 | 2019-10-22 | 江苏万华通信科技有限公司 | A kind of layer-stranding cable that waterproofness is high |
| CN110596835A (en) * | 2019-08-27 | 2019-12-20 | 苏州胜信光电科技有限公司 | Tensile lightning protection optical cable for base station iron tower |
| CN210376806U (en) * | 2019-09-22 | 2020-04-21 | 湖北凯乐科技股份有限公司 | Loose tube layer-stranded photoelectric mixed optical cable |
| CN211719337U (en) * | 2019-12-31 | 2020-10-20 | 浙江联杰科技有限公司 | Environment-friendly anti-press photoelectric composite cable |
| CN111781689A (en) * | 2020-07-27 | 2020-10-16 | 杭州富通通信技术股份有限公司 | Optical cable |
| CN112037979A (en) * | 2020-08-25 | 2020-12-04 | 杭州富通通信技术股份有限公司 | 5G is with mixed cable of resistance to compression photoelectricity |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325974A (en) * | 2021-12-02 | 2022-04-12 | 杭州富通通信技术股份有限公司 | Compression-resistant damping optical cable |
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Application publication date: 20211126 |