CN111781689B - Optical cable - Google Patents
Optical cable Download PDFInfo
- Publication number
- CN111781689B CN111781689B CN202010730841.3A CN202010730841A CN111781689B CN 111781689 B CN111781689 B CN 111781689B CN 202010730841 A CN202010730841 A CN 202010730841A CN 111781689 B CN111781689 B CN 111781689B
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- Prior art keywords
- sheath layer
- cable core
- optical cable
- shaped
- cable
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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
- G02B6/4415—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
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Communication Cables (AREA)
Abstract
The invention belongs to the field of cables, and particularly relates to an optical cable with good pressure resistance. It includes: the cable comprises a sheath layer, a cable core and two shaping strips embedded in the sheath layer; the section of the sheath layer is butterfly-shaped or 8-shaped, the center of the sheath layer is hollow, the hollow part is oval, an oval outer beam pipe is attached to the inner wall of the hollow part to form an oval inner cavity, and the long axis of the oval outer beam pipe is parallel to the long axis direction of the section of the sheath layer; the cable core is arranged in the inner cavity and is tangent to the minor axis direction of the inner wall of the inner cavity; the shaping strips are symmetrically arranged in the long axis direction of the section of the sheath layer by taking the cable core as a symmetric center, a crescent notch is arranged on one side facing the cable core, the end part of the crescent notch is tangent to the outer beam tube, and the bottom of the crescent notch is separated from the outer beam tube. The compression resistance of the optical cable is remarkably improved, and the optical cable has the capability of bearing larger limit pressure; when the cable is extruded by strong external force, the force can be dispersed and offset by matching the structures, and the stress of the cable core part is reduced.
Description
Technical Field
The invention belongs to the field of cables, and particularly relates to an optical cable with good pressure resistance.
Background
Optical fiber cables are common cables for realizing optical signal transmission functions in the field of communications, and have been developed rapidly in recent years, and various optical fiber cables have been produced. The butterfly-shaped optical cable is a novel user access optical cable, can reasonably design the optical cable structure and various technical parameters according to different application environments and laying conditions, integrates the characteristics of indoor soft optical cables and self-supporting optical cables, is a best alternative product for solving the FTTX (fiber to the x) network, and can play a unique role in constructing networks such as intelligent buildings, digital cells, campus networks, local area networks and the like.
However, the conventional butterfly-shaped optical cable has a small wire diameter, and thus it is difficult to form a structure having good pressure resistance. The structure of the existing compression-resistant butterfly-shaped optical cable can completely separate the shaped strip part from the cable core part, but the arrangement mode of the completely separated structure can lead the optical cable to be wider and flatter and be easily bent, and the deformation of the shaped strip after stress still easily produces the extrusion effect on the cable core, so that the actual compression resistance is limited.
Disclosure of Invention
The invention provides an optical cable, aiming at solving the problems that the existing butterfly-shaped optical cable generally has weaker pressure resistance, the pressure-resistant butterfly-shaped optical cable still cannot realize good pressure resistance, and the external force is still easily transmitted to a cable core part after the pressure is applied, so that the optical cable is damaged and the like.
The invention aims to:
firstly, the compression resistance of the butterfly-shaped optical cable is improved;
and secondly, the optical cable is not easily conducted to the cable core under the action of external pressure, and the optical fiber is prevented from being damaged.
In order to achieve the purpose, the invention adopts the following technical scheme.
An optical cable, comprising:
the cable comprises a sheath layer, a cable core and two shaping strips embedded in the sheath layer;
the section of the sheath layer is butterfly-shaped or 8-shaped, the center of the sheath layer is hollow, the hollow part is oval, an oval outer beam pipe is attached to the inner wall of the hollow part to form an oval inner cavity, and the long axis of the oval outer beam pipe is parallel to the long axis direction of the section of the sheath layer;
the cable core is arranged in the inner cavity and is formed by wrapping optical fibers or optical fiber bundles by an inner tube bundle, and the cable core is tangent to the minor axis direction of the inner wall of the inner cavity;
the shaping strips are symmetrically arranged in the long axis direction of the section of the sheath layer by taking the cable core as a symmetric center, a crescent notch is arranged on one side facing the cable core, the end part of the crescent notch is tangent to the outer bundle tube, and the bottom of the crescent notch is separated from the outer bundle tube.
As a matter of preference,
each shaping strip is internally provided with a plurality of circular arc-shaped reinforcing pieces which are coaxially arranged and arch towards the outer side.
As a preference, the first and second liquid crystal compositions are,
each shaping strip is internally provided with three arc-shaped reinforcing pieces which are coaxially arranged.
As a preference, the first and second liquid crystal compositions are,
each shaping strip is internally provided with an inner reinforcing piece, and the inner reinforcing pieces are arranged on the inner sides of the circular arc-shaped reinforcing pieces.
As a matter of preference,
the cross section of the inner reinforcement is arc-shaped and arched towards the cable core direction.
As a matter of preference,
the outer diameter of the inner reinforcing part is smaller than that of any circular arc reinforcing part.
The invention has the beneficial effects that:
1) the compression resistance of the optical cable is remarkably improved, and the optical cable has the capability of bearing larger limit pressure;
2) when the optical cable is extruded by strong external force, the force can be dispersed and offset through the ingenious matching of the structures, and the stress of the cable core part is reduced.
Description of the drawings:
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of section A-A of FIG. 1;
FIG. 3 is a force diagram of the present invention;
in the figure: 100 sheath layers, 101 outer bundle tubes, 102 cavities, 200 cable cores, 201 inner bundle tubes, 202 single-mode or multi-mode optical fibers or optical fiber bundles, 300 shaping strips, 301 crescent notches, 3011 bottoms, 3012 end portions, 302 circular arc-shaped reinforcing parts and 303 inner reinforcing parts.
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, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, 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 explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; 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 interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. 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 and 2, comprising in particular:
the cable comprises a sheath layer 100, a cable core 200 and shaping strips 300 embedded in the sheath layer 100, wherein the shaping strips 300 are symmetrically arranged in the long axis direction of the cross section of the sheath layer 100, namely, the left side and the right side in the figure are symmetrically arranged;
the section of the sheath layer 100 is butterfly-shaped or 8-like as shown in figure 1, the center of the sheath layer is hollow, the hollow part is oval, the inner wall of the hollow part is provided with an oval outer beam tube 101 in a fit manner to form an oval inner cavity, the long axis of the oval outer beam tube 101 is parallel to the long axis direction of the section of the sheath layer 100, as shown in figure 1, the long axis of the cable core 200 is transversely arranged, the cable core 200 is arranged in the inner cavity, the section of the cable core 200 is circular, and the outer wall of the cable core is tangent to the inner side walls at two ends of the outer beam tube 101 in the short axis direction;
the cable core 200 is formed by coating a single-mode or multi-mode optical fiber or optical fiber bundle 202 by an inner bundle tube 201;
the section of the shaping strip 300 is circular, the edge of the section is provided with a crescent notch 301, the bottom 3011 of the crescent notch 301 is separated from and does not contact with the outer tube bundle 101, a buffer cavity 102 is formed by a gap between the crescent notch 301 and the left end and the right end of the outer tube bundle 101, the end 3012 of the crescent notch 301 is tangent to the outer wall of the oval tube bundle, and the inner wall of the outer tube bundle 101 corresponding to the tangent position is not contacted with the cable core 200;
in the structure, when the optical cable is stressed longitudinally, the part mainly bearing the force is on the shaping strip 300, and the invention is matched through a special structure, the shaping strip 300 is buffered by the cavity 102 under the condition of small deformation, the shaping strip 300 can not directly transmit force to the cable core 200 part, and has certain deformation allowance, the cable core 200 is protected and prevented from being extruded, when the bottom 3011 of the crescent notch 301 deforms to be attached to the outer wall of the outer beam tube 101 under the condition of large deformation, the long axis of the outer beam tube 101 is compressed, the short axis of the outer beam tube 101 is expanded, but the extension of the short shaft is limited by the end 3012 of the crescent-shaped notch 301, and the offset is generated during the deformation process, a large amount of force is concentrated on the crescent notch 301 and the outer beam tube 101 of the shaping strip 300 and is difficult to be transmitted to the cable core 200 inwards, and a very excellent protection effect is generated on the cable core 200;
specifically, as shown in fig. 3, under the action of an external force F1 and a corresponding reaction force, the upper and lower ends of the shaping strip 300 are firstly pressed by F2, so as to squeeze the shaping strip 300, after the pressing action, the left and right ends of the shaping strip 300 are firstly unfolded, which is exemplified by the right half part in fig. 3, the right side of the right shaping strip 300 is unfolded along the a direction, and the left side thereof is divided into two parts, namely a bottom 3011 and an end 3012 of the crescent notch 301, the bottom 3011 extends towards the cable core 200 along the b direction in the figure, the end 3012 extends towards the middle part along the c direction in the figure, but because a margin space exists between the bottom 3011 of the crescent notch 301 and the outer bundle tube 101, the bottom 3011 extends more easily along the b direction, the b direction extends to a greater extent than the c direction until the bottom 3011 of the crescent notch 301 deforms to be attached to the outer wall of the outer bundle tube 101, the outer bundle tube 101 contracts towards 200 along the d direction, and the upper and the lower ends of the outer bundle tube 101 along the e direction, however, the unfolding process is limited by the end 3012 of the crescent notch 301, which results in the increase of unfolding difficulty and the obstruction of deformation of the shaping strip 300, i.e. the structure of the optical cable of the invention continuously changes the force transmission direction, so that the external force is offset in the transmission process, and most of the external force is offset and weakened by means of the cooperation of the shaping strip 300 and other components, thereby protecting the cable core 200;
on the other hand, the crescent notch 301 and the outer tube 101 are matched, so that the overall width of the butterfly-shaped optical cable is narrowed, and the bending resistance is improved.
Further, the air conditioner is characterized in that,
the shaping strip 300 is internally provided with a plurality of circular arc-shaped reinforcing pieces 302, and the circular arc-shaped reinforcing pieces 302 are coaxially arranged and arch outwards;
as shown in fig. 1, the setting bars 300 on the left and right sides of the sheath layer 100 are respectively provided with three semi-circular arc-shaped reinforcing members 302 coaxially, and are arched towards the outer sides of the left and right sides;
the arrangement of the arc-shaped reinforcing piece 302 enables the overall bending resistance of the butterfly-shaped optical cable to be remarkably improved, compared with the conventional circular reinforcing piece, the butterfly-shaped optical cable can generate a more excellent bending resistance effect, and the pressure resistance performance is not weaker than that of the conventional circular reinforcing piece, on the other hand, the outward arching arrangement mode generates a certain guiding effect on the deformation of the shaping strip 300, so that the shaping strip 300 is easier to extend outwards when being deformed by pressure, the inward extending and compressing amplitude is reduced, and the protection effect on the cable core 200 is improved;
the inner reinforcing member 303 is also arranged in the shaping strip 300, the inner reinforcing member 303 is also arc-shaped, but the outer diameter of the inner reinforcing member 303 is smaller than the outer diameter of any arc-shaped reinforcing member 302, the inner reinforcing member is arched towards the cable core 200 and is arranged on the inner side of the arc-shaped reinforcing member 302, the limit pressure resistance of the butterfly-shaped optical cable is further improved due to the arrangement of the inner reinforcing member 303, under the condition that the butterfly-shaped optical cable is extruded by a great external force, when the integral shaping strip 300 is flattened to a great extent, the inner reinforcing member 303 can further prevent the arc-shaped reinforcing member 302 from deforming, and meanwhile, due to the smaller outer diameter of the inner reinforcing member, the guide effect is weaker and basically ignored, so that the extrusion on the cable core 200 part cannot be increased.
Under the cooperation of the structures of the parts, the butterfly-shaped optical cable integrally generates a very excellent compression-resistant and bending-resistant effect, so that the compression resistance and the bending resistance of the butterfly-shaped optical cable can be greatly improved while the width of the butterfly-shaped optical cable is kept small.
With reference to fig. 3 again, after the arc-shaped reinforcing member 302 is arranged, the deformation tendency of the shaping strip 300 can be effectively changed, so that the extent of the extending deformation of the shaping strip 300 along the direction a is increased, and the extent of the deformation of the crescent-shaped notch 301 along the directions b and c is synchronously decreased, thereby better protecting the cable core 200;
when the inner reinforcement 303 is further arranged, the deformation range in the b direction is slightly increased to a certain extent, but the outer diameter of the inner reinforcement 303 is smaller, and the increased deformation range is basically negligible, but the deformation ranges in the c direction and the a direction are reduced, so that the end 3012 of the crescent notch 301 is less prone to squeezing the outer bundled tube 101, and meanwhile, the effect of limiting the deformation of the outer bundled tube 101 along the e direction by the end 3012 of the crescent notch 301 can be ensured, and the pressure resistance of the optical cable is further improved.
Claims (6)
1. An optical cable, comprising:
the cable comprises a sheath layer, a cable core and two shaping strips embedded in the sheath layer;
the section of the sheath layer is butterfly-shaped or 8-shaped, the center of the sheath layer is hollow, the hollow part is oval, an oval outer beam pipe is attached to the inner wall of the hollow part to form an oval inner cavity, and the long axis of the oval outer beam pipe is parallel to the long axis direction of the section of the sheath layer;
the cable core is arranged in the inner cavity and is formed by wrapping optical fibers or optical fiber bundles by an inner tube bundle, and the cable core is tangent to the minor axis direction of the inner wall of the inner cavity;
the shaping strips are symmetrically arranged in the long axis direction of the section of the sheath layer by taking the cable core as a symmetric center, a crescent notch is arranged on one side facing the cable core, the end part of the crescent notch is tangent to the outer beam tube, and the bottom of the crescent notch is separated from the outer beam tube.
2. An optical cable according to claim 1,
each shaping strip is internally provided with a plurality of circular arc-shaped reinforcing pieces which are coaxially arranged and arch towards the outer side.
3. An optical cable according to claim 2,
each shaping strip is internally provided with three coaxially arranged circular arc-shaped reinforcing pieces.
4. An optical cable according to claim 2 or 3,
each shaping strip is internally provided with an inner reinforcing piece, and the inner reinforcing pieces are arranged on the inner sides of the circular arc-shaped reinforcing pieces.
5. An optical cable according to claim 4,
the cross section of the inner reinforcing part is arc-shaped and arched towards the cable core direction.
6. An optical cable according to claim 4,
the outer diameter of the inner reinforcing part is smaller than that of any circular arc reinforcing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010730841.3A CN111781689B (en) | 2020-07-27 | 2020-07-27 | Optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010730841.3A CN111781689B (en) | 2020-07-27 | 2020-07-27 | Optical cable |
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| Publication Number | Publication Date |
|---|---|
| CN111781689A CN111781689A (en) | 2020-10-16 |
| CN111781689B true CN111781689B (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010730841.3A Active CN111781689B (en) | 2020-07-27 | 2020-07-27 | Optical cable |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113703106A (en) * | 2021-07-27 | 2021-11-26 | 杭州富通通信技术股份有限公司 | Optical cable |
| CN113703108A (en) * | 2021-07-27 | 2021-11-26 | 杭州富通通信技术股份有限公司 | Meshing optical cable |
| CN114706179B (en) * | 2022-04-06 | 2023-09-01 | 富通集团（嘉善）通信技术有限公司 | Wind-light-resistant cable |
| CN114895416A (en) * | 2022-05-06 | 2022-08-12 | 杭州富通通信技术股份有限公司 | Optical fiber ribbon cable |
| CN114815104B (en) * | 2022-05-07 | 2023-04-07 | 富通集团有限公司 | Air-supported butterfly cable |
| CN114967016B (en) * | 2022-06-29 | 2023-08-04 | 深圳新澳科电缆有限公司 | Anti-twisting ribbon optical cable |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2872389Y (en) * | 2006-03-20 | 2007-02-21 | 西古光纤光缆有限公司 | House sleeved optical-fiber cable |
| CN104900319A (en) * | 2015-06-28 | 2015-09-09 | 黄浩 | Central tube type cable with improved structure |
| CN107065091A (en) * | 2017-02-28 | 2017-08-18 | 烽火通信科技股份有限公司 | A kind of optical cable and its manufacture method of easily putting in a skylight |
| CN108919452A (en) * | 2018-09-20 | 2018-11-30 | 苏州大成瑞丰通信科技有限公司 | A kind of shock resistance butterfly leading in cable and its jumping fiber |
| CN109100846A (en) * | 2018-09-20 | 2018-12-28 | 苏州大成瑞丰通信科技有限公司 | A kind of self-bearing type butterfly leading in cable and its jumping fiber |
| CN209373218U (en) * | 2019-03-02 | 2019-09-10 | 苏州瑞力特通信科技有限公司 | A kind of reinforced outdoor butterfly optical cable |
| CN210323486U (en) * | 2019-06-13 | 2020-04-14 | 苏州托瑞斯光电科技有限公司 | Novel independent butterfly-shaped optical cable |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8682124B2 (en) * | 2011-10-13 | 2014-03-25 | Corning Cable Systems Llc | Access features of armored flat fiber optic cable |
| US9557232B2 (en) * | 2013-05-10 | 2017-01-31 | Corning Optical Communications LLC | Structural strain sensing optical cable |
| US20190113703A1 (en) * | 2017-10-12 | 2019-04-18 | Superior Essex International LP | Fiber Optic Drop Cable |
-
2020
- 2020-07-27 CN CN202010730841.3A patent/CN111781689B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2872389Y (en) * | 2006-03-20 | 2007-02-21 | 西古光纤光缆有限公司 | House sleeved optical-fiber cable |
| CN104900319A (en) * | 2015-06-28 | 2015-09-09 | 黄浩 | Central tube type cable with improved structure |
| CN107065091A (en) * | 2017-02-28 | 2017-08-18 | 烽火通信科技股份有限公司 | A kind of optical cable and its manufacture method of easily putting in a skylight |
| CN108919452A (en) * | 2018-09-20 | 2018-11-30 | 苏州大成瑞丰通信科技有限公司 | A kind of shock resistance butterfly leading in cable and its jumping fiber |
| CN109100846A (en) * | 2018-09-20 | 2018-12-28 | 苏州大成瑞丰通信科技有限公司 | A kind of self-bearing type butterfly leading in cable and its jumping fiber |
| CN209373218U (en) * | 2019-03-02 | 2019-09-10 | 苏州瑞力特通信科技有限公司 | A kind of reinforced outdoor butterfly optical cable |
| CN210323486U (en) * | 2019-06-13 | 2020-04-14 | 苏州托瑞斯光电科技有限公司 | Novel independent butterfly-shaped optical cable |
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| CN111781689A (en) | 2020-10-16 |
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