CN114779418A - Assembled optical cable - Google Patents
Assembled optical cable Download PDFInfo
- Publication number
- CN114779418A CN114779418A CN202210349085.9A CN202210349085A CN114779418A CN 114779418 A CN114779418 A CN 114779418A CN 202210349085 A CN202210349085 A CN 202210349085A CN 114779418 A CN114779418 A CN 114779418A
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- Prior art keywords
- optical cable
- beam tube
- oval
- buffer beam
- reinforcing parts
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- 230000003287 optical effect Effects 0.000 title claims abstract description 66
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 25
- 230000002787 reinforcement Effects 0.000 claims abstract description 21
- 230000003139 buffering effect Effects 0.000 claims abstract description 6
- 239000013307 optical fiber Substances 0.000 claims description 13
- 239000003351 stiffener Substances 0.000 claims description 6
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 description 12
- 238000007906 compression Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000008093 supporting effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
-
- 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)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention belongs to the field of cables, and particularly relates to an assembled optical cable. It includes: the core wire, the buffering beam tube, the assembled protection reinforcement and the outer sheath are arranged from inside to outside in sequence; the buffer beam tube is oval on the radial section of the optical cable, and the core wire is arranged in the buffer beam tube; the assembled protection reinforcing parts comprise main reinforcing parts and auxiliary reinforcing parts with equal quantity, the main reinforcing parts and the auxiliary reinforcing parts are circumferentially inserted or clamped to be matched into a ring, and the end parts of two circumferential ends of each main reinforcing part protrude outwards along the radial direction of the optical cable to form abutting end heads; a sheath cavity is arranged in the outer sheath, the sheath cavity is oval, and the oval long axis of the sheath cavity is perpendicular to the oval long axis of the buffer beam tube; the end part of the main reinforcement is abutted against the end head and is abutted against the inner wall of the sheath cavity outwards. According to the optical cable, through reasonable structural arrangement, the optical cable has more excellent pressure resistance, and external force is not easily conducted to act on the optical cable core line directly after the external force acts on the optical cable.
Description
Technical Field
The invention belongs to the field of cables, and particularly relates to an assembled optical cable.
Background
Optical fiber cables are very common functional cables for optical signal transmission, and play a very important role in modern society. The mainstream signal transmission means at present is carried out through an optical cable.
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, most of the existing compression-resistant structures adopt solid structures, the solid structures generate compression-resistant effects through the characteristic that materials are not easy to deform, and once the solid structures deform, core wires in the optical cable are damaged more easily.
Disclosure of Invention
The invention provides an assembled optical cable, aiming at solving the problems that the existing optical cable has limited compression resistance, the existing mode for improving the compression resistance of the optical cable can cause the specific gravity of the optical cable to be greatly improved, and meanwhile, a solid compression-resistant structure has certain defects and the like.
The invention aims to:
firstly, the compression resistance of the optical cable is improved;
and secondly, improving the compression-resistant structure of the optical cable, so that the optical cable still can play a good protection effect on the core wire after being subjected to compression deformation.
In order to achieve the purpose, the invention adopts the following technical scheme.
A fabricated fiber optic cable, comprising:
the core wire, the buffering beam tube, the assembled protection reinforcement and the outer sheath are arranged from inside to outside in sequence;
the buffer beam tube is oval on the radial section of the optical cable, and the core wire is arranged in the buffer beam tube;
the assembled protection reinforcing parts comprise main reinforcing parts and auxiliary reinforcing parts with equal quantity, the main reinforcing parts and the auxiliary reinforcing parts are inserted or clamped in a matching mode in the circumferential direction to form a ring, and the end parts of the two circumferential ends of each main reinforcing part protrude outwards in the radial direction of the optical cable to form abutting ends;
a sheath cavity is arranged in the outer sheath, the sheath cavity is oval, and the oval long axis of the sheath cavity is perpendicular to the oval long axis of the buffer beam tube;
the end abutting end of the main reinforcement is abutted to the inner wall of the sheath cavity in an outward abutting mode.
As a matter of preference,
the core wire is formed by a non-woven fabric wrapping tape wrapping a single optical fiber or an optical fiber bundle formed by combining a plurality of optical fibers.
As a preference, the first and second liquid crystal compositions are,
the buffer beam tube is provided with a plurality of buffer cavities which are uniformly distributed around the circumference of the buffer beam tube along the axial direction of the optical cable.
As a preference, the first and second liquid crystal compositions are,
the abutting end is columnar on the radial section of the optical cable.
As a matter of preference,
the outer surface of the secondary reinforcing member is provided with a split along the axial direction of the optical cable.
As a preference, the first and second liquid crystal compositions are,
the split is provided in the middle of the outer surface of the secondary reinforcement.
As a preference, the first and second liquid crystal compositions are,
the depth of the split is 30-50% of the thickness of the auxiliary reinforcing piece.
The beneficial effects of the invention are:
1) through reasonable structural arrangement, the optical cable has more excellent pressure resistance;
2) after the optical cable is deformed under the action of external force, the external force is not easily directly conducted to act on the optical cable core line;
3) the assembled structure can form unconventional deformation to realize the buffering and the dispersion of external force.
Description of the drawings:
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of a force condition according to the present invention;
FIG. 3 is a schematic view of a variation of the fabricated protective reinforcement of the present invention;
FIG. 4 is a schematic view of another force condition of the present invention;
FIG. 5 is a schematic view of another variation of the fabricated protective reinforcement of the present invention;
in the figure: 100 cores, 200 buffer bundle tubes, 201 buffer chambers, 300 fabricated protective stiffeners, 301 primary stiffener, 3011 butt termination, 302 secondary stiffeners, 3021 split, 400 outer jacket, 401 jacket chambers.
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 practice the invention based on these descriptions. Furthermore, the embodiments of the present invention described in the following description are generally only a part of the embodiments of the present invention, and not all of the 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 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 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, all the raw materials used in the examples of the present invention are 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 assembled optical cable as shown in fig. 1, which specifically comprises:
the core wire 100, the buffer beam tube 200, the assembled protection reinforcement 300 and the outer sheath 400 are arranged from inside to outside in sequence;
the core wire 100 is formed by a non-woven fabric tape covering a single optical fiber or an optical fiber bundle combined by a plurality of optical fibers, and is used for transmitting optical signals to realize the basic communication function of the optical cable;
the buffer beam tube 200 is oval on the radial section of the optical cable, a plurality of buffer cavities 201 are uniformly distributed around the circumference of the optical cable along the axial direction of the optical cable, and the buffer cavities 201 can increase the deformation buffer capacity of the optical cable when stressed and reduce the extrusion effect of the optical cable on the inner core wire 100;
the assembled protective reinforcement 300 is composed of equal number of main reinforcements 301 and auxiliary reinforcements 302, the main reinforcements 301 and the auxiliary reinforcements 302 are circumferentially inserted or clamped to be matched into a ring, the ring is circular or nearly circular, and the end parts of two circumferential ends of each main reinforcement 301 protrude outwards along the radial direction of the optical cable to form abutting end heads 3011;
the abutting end 3011 is columnar on the radial section of the optical cable;
a sheath cavity 401 is arranged in the outer sheath 400, the sheath cavity 401 is oval, and in an initial state, the oval long axis of the sheath cavity 401 should be perpendicular to the oval cross-section long axis of the buffer beam tube 200;
the end of the main reinforcement 301 of the fabricated protective reinforcement 300 abuts against the end 3011 outwardly against the inner wall of the sheath cavity 401.
With the above structure, the optical cable of the present invention can generate very excellent impact resistance and extrusion resistance, as shown in fig. 2, when the optical cable is subjected to an external acting force along the short axis direction of the sheath cavity 401, the middle portion of the main strength member 301 is stressed inward along the radial direction of the optical cable, and the two ends of the main strength member 301 tilt up, during the tilting process of the two ends, the auxiliary strength member 302 is deformed from the original arc shape to the straight line shape, due to the existence of the abutting end 3011, the assembled protection strength member 300 is not deformed into the oval structure as a conventional circular ring structure, but as shown in fig. 2, the abutting end 3011 between two adjacent upper and lower main strength members 301 will gather relatively, because the ends of the main strength member 301 and the auxiliary strength member 302 are inserted or clamped and matched, when the auxiliary strength member 302 is deformed from the original arc shape to the straight line shape, the middle portion thereof shrinks radially inward, during the shrinking process, because the inside of the oval buffer beam tube 200 is arranged, and a margin gap exists between the oval buffer beam tube 200 and the oval buffer beam tube 200, the oval buffer beam tube 200 and the core wire 100 in the buffer beam tube 200 cannot be directly abutted and extruded, so that the direct stress of the core wire 100 is avoided, and after the deformation is linear, the auxiliary reinforcing member 302 is actually parallel to the stress direction, so that stronger supporting capability can be formed, meanwhile, because the oval buffer beam tube is linear generated by stress deformation, certain elastic potential energy is accumulated in the oval buffer beam tube, so that a better supporting effect can be generated, and the further compression deformation of the optical cable is prevented;
specifically, as shown in fig. 3, when the main reinforcement 301 is stressed, the deformation of the fabricated protective reinforcement 300 gradually changes from circular to rectangular, and while the main reinforcement 301 generates a deformation buffering effect, the sub-reinforcement 302 is changed into a "force-bearing column" as a main stressed part to resist external force and avoid the core wire 100 inside the sub-reinforcement;
as shown in fig. 4, when the optical cable is subjected to a force along the long axis direction of the sheath cavity 401, the abutting end 3011 is used as a first force-receiving portion, the abutting end 3011 on the same main strength member 301 is subjected to a frictional force and first tends to gather, the abutting end 3011, the main strength member 301 and the sub strength member 302 are arranged in a splicing or clamping fit manner, as shown in fig. 5, the sub strength member 302 is driven to protrude outward along the radial direction of the optical cable, so that the sub strength member 302 protrudes outward along the radial direction in the opposite direction of the force-receiving direction of the optical cable, in the process, the external force is absorbed and buffered by the compression deformation of the buffer beam tube 200, and the direct force applied to the core wires 100 is reduced by the oval configuration of the buffer beam tube 200, and when the sub strength member 302 abuts outward against the inner wall of the sheath cavity 401 with the inward shrinkage deformation, the normal deformation mode of inward shrinkage deformation is formed again, that is only a compression deformation process occurs outside the optical cable macroscopically, but multiple deformation buffering actually occurs inside the optical cable, so that external acting force can be greatly absorbed and counteracted, and the purpose of protecting the core wire 100 inside the optical cable is effectively achieved.
In a further aspect of the present invention,
the outer surface of the secondary reinforcing element 302 is provided with a split 3021 along the axial direction of the optical cable, and the split 3021 is arranged in the middle of the outer surface of the secondary reinforcing element 302;
to ensure structural stability of the secondary stiffener 302 itself and avoid tearing damage, the depth of the split 3021 should be 30-50% of the thickness of the secondary stiffener 302;
the arrangement of the split 3021 can further realize the deformation guidance of the secondary strength member 302, if the optical cable is subjected to an acting force along the short axis direction of the jacket cavity 401, the secondary strength member 302 is firstly deformed into a straight line shape to form a support, when the external force exceeds the threshold of the supporting capability thereof, the arrangement of the split 3021 enables the secondary strength member 302 to be deformed convexly outwards without suddenly impacting the core wire 100 inwards, and the deformation process of the bulge outwards generates an offset effect with the acting effect of the main strength member 301 on the secondary strength member, so that the stress concentration and offset effect is generated, and the actual compression resistance threshold of the optical cable can be further increased;
without the presence of the split 3021, once the cable is subjected to an excessive force exceeding the support threshold for the sub-strength members 302 to become linear, the core wire 100 is very easily pressed inward by the dual action of the external force and the deformation guide generated by the main strength members 301, resulting in damage to the optical fiber in the core wire 100.
Claims (7)
1. An assembled fiber optic cable, comprising:
the core wire, the buffering beam tube, the assembled protection reinforcement and the outer sheath are arranged from inside to outside in sequence;
the buffer beam tube is oval on the radial section of the optical cable, and the core wire is arranged in the buffer beam tube;
the assembled protection reinforcing parts comprise main reinforcing parts and auxiliary reinforcing parts with equal quantity, the main reinforcing parts and the auxiliary reinforcing parts are circumferentially inserted or clamped to be matched into a ring, and the end parts of two circumferential ends of each main reinforcing part protrude outwards along the radial direction of the optical cable to form abutting end heads;
a sheath cavity is arranged in the outer sheath, the sheath cavity is oval, and the oval long axis of the sheath cavity is perpendicular to the oval long axis of the buffer beam tube;
the end part of the main reinforcement is abutted against the end head and is abutted against the inner wall of the sheath cavity outwards.
2. A fabricated optical cable according to claim 1,
the core wire is formed by wrapping a single optical fiber or an optical fiber bundle combined by a plurality of optical fibers by a non-woven fabric wrapping tape.
3. A fabricated optical cable according to claim 1,
the buffer beam tube is provided with a plurality of buffer cavities which are uniformly distributed around the circumference of the buffer beam tube along the axial direction of the optical cable.
4. A fabricated optical cable according to claim 1,
the abutting end is columnar on the radial section of the optical cable.
5. A fabricated optical cable according to claim 1,
the outer surface of the auxiliary reinforcing piece is provided with a split along the axial direction of the optical cable.
6. A fabricated optical cable according to claim 5,
the split is disposed in the middle of the outer surface of the secondary stiffener.
7. A fabricated optical cable according to claim 5 or 6,
the depth of the split is 30-50% of the thickness of the auxiliary reinforcing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210349085.9A CN114779418A (en) | 2022-04-01 | 2022-04-01 | Assembled optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210349085.9A CN114779418A (en) | 2022-04-01 | 2022-04-01 | Assembled optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114779418A true CN114779418A (en) | 2022-07-22 |
Family
ID=82427335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210349085.9A Withdrawn CN114779418A (en) | 2022-04-01 | 2022-04-01 | Assembled optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114779418A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679386A (en) * | 2020-06-22 | 2020-09-18 | 杭州富通通信技术股份有限公司 | Flexible optical cable |
| CN112526686A (en) * | 2020-12-08 | 2021-03-19 | 杭州富通通信技术股份有限公司 | Optical cable |
| CN113281863A (en) * | 2021-05-31 | 2021-08-20 | 富通集团（嘉善）通信技术有限公司 | Anti-distortion optical cable |
| CN113703107A (en) * | 2021-07-27 | 2021-11-26 | 杭州富通通信技术股份有限公司 | Optical fiber ribbon cable |
| CN113848618A (en) * | 2021-09-07 | 2021-12-28 | 富通集团（嘉善）通信技术有限公司 | Optical cable |
-
2022
- 2022-04-01 CN CN202210349085.9A patent/CN114779418A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679386A (en) * | 2020-06-22 | 2020-09-18 | 杭州富通通信技术股份有限公司 | Flexible optical cable |
| CN112526686A (en) * | 2020-12-08 | 2021-03-19 | 杭州富通通信技术股份有限公司 | Optical cable |
| CN113281863A (en) * | 2021-05-31 | 2021-08-20 | 富通集团（嘉善）通信技术有限公司 | Anti-distortion optical cable |
| CN113703107A (en) * | 2021-07-27 | 2021-11-26 | 杭州富通通信技术股份有限公司 | Optical fiber ribbon cable |
| CN113848618A (en) * | 2021-09-07 | 2021-12-28 | 富通集团（嘉善）通信技术有限公司 | Optical cable |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220722 |
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| WW01 | Invention patent application withdrawn after publication |