CN112835164A - Resistance to compression type area form optical cable - Google Patents
Resistance to compression type area form optical cable Download PDFInfo
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- CN112835164A CN112835164A CN202110198386.1A CN202110198386A CN112835164A CN 112835164 A CN112835164 A CN 112835164A CN 202110198386 A CN202110198386 A CN 202110198386A CN 112835164 A CN112835164 A CN 112835164A
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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
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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
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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
- G02B6/4432—Protective covering with fibre reinforcements
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention belongs to the field of optical cables, and particularly relates to a pressure-resistant ribbon optical cable. It includes: the optical fiber cable comprises a sheath layer and an optical fiber ribbon, wherein a coating layer is arranged on the outer surface of the sheath layer; the axis of the sheath layer is provided with a central shaft hole along the axial direction of the optical cable, and a reinforcing piece is arranged in the central shaft hole; the sheath layer is uniformly provided with a plurality of optical fiber holes for containing optical fiber ribbons along the circumferential direction of the central shaft hole; the lateral wall that the optical fiber hole is close to the center shaft hole is the inside wall, the lateral wall of keeping away from the center shaft hole is the lateral wall, and inside wall and lateral wall are the arc wall, and the lateral wall in a plurality of optical fiber holes all is in a virtual circle, and the inside wall is protruding towards the center shaft hole, and the junction of lateral wall and inside wall is the fillet. The optical cable can form a stable semi-hollow structure, so that the optical fiber ribbon is not stressed directly; the whole optical cable has good structural stability and pressure resistance; the stranded optical fiber ribbon cable can be used for the existing layer stranded optical fiber ribbon cable and can also be independently cabled, and the stranded optical fiber ribbon cable has very good universality.
Description
Technical Field
The invention belongs to the field of optical cables, and particularly relates to a pressure-resistant ribbon optical cable.
Background
The ribbon cable is an optical cable formed by bonding multi-core optical cables together by using special materials to form a single ribbon or by combining multiple ribbons. At present, most of optical cables having a plurality of cores, for example, 72 cores or more, are ribbon cables. Compared with the common single-core optical cable, the optical fiber ribbon cable has obvious advantages in the aspects of construction, connection, termination and the like, so that the application is more and more extensive.
Existing ribbon cables are generally classified into two types of structures: tube bundle type and skeleton type. The skeleton type ribbon optical cable is divided into a single skeleton type ribbon optical cable and a composite skeleton type ribbon optical cable, and is adjusted according to different application environments. But more commonly still, tube-bundle ribbon is subdivided into a central tube ribbon and a layer-stranded ribbon.
The most common of them is the layer-stranded ribbon optical cable, which is composed of several protective layers covering the optical cable units containing ribbon optical fibers, the internal optical cable units are distributed in scattered points, and it has the characteristics of many cores and convenient branching treatment. However, in the existing layer-stranded optical fiber ribbon cable, the optical cable unit adopts a full solid structure, and after the layer-stranded structure is matched, the compressive property of the whole optical cable is weaker, and the optical fiber is easy to attenuate after being compressed and has larger attenuation.
Disclosure of Invention
The invention provides a pressure-resistant ribbon optical cable, aiming at solving the problems that the conventional ribbon optical cable has poor pressure resistance and is easy to generate larger optical fiber attenuation after being stressed, so that the transmission performance is weakened.
The invention aims to:
firstly, improving the optical cable structure to form a stable semi-hollow structure;
secondly, the optical cable with the improved structure has good compression resistance;
and thirdly, the optical fiber cable can be used as an optical cable unit of a conventional layer stranded ribbon optical cable and can also be independently cabled.
In order to achieve the purpose, the invention adopts the following technical scheme.
A pressure-resistant ribbon cable comprising:
the optical fiber cable comprises a sheath layer and an optical fiber ribbon, wherein a coating layer is arranged on the outer surface of the sheath layer;
the axis of the sheath layer is provided with a central shaft hole along the axial direction of the optical cable, and a reinforcing piece is arranged in the central shaft hole;
the sheath layer is uniformly provided with a plurality of optical fiber holes for containing optical fiber ribbons along the circumferential direction of the central shaft hole;
the lateral wall that the optical fiber hole is close to the center shaft hole is the inside wall, the lateral wall of keeping away from the center shaft hole is the lateral wall, and inside wall and lateral wall are the arc wall, and the lateral wall in a plurality of optical fiber holes all is in a virtual circle, and the inside wall is protruding towards the center shaft hole, and the junction of lateral wall and inside wall is the fillet.
As a preference, the first and second liquid crystal compositions are,
the virtual circle center is positioned on the axis of the central shaft hole.
As a preference, the first and second liquid crystal compositions are,
the two ends of the optical fiber ribbon in the long direction of the section are abutted with the fillets at the connection parts of the inner side wall and the outer side wall of the optical fiber hole.
As a preference, the first and second liquid crystal compositions are,
the number of the optical fiber holes is odd.
As a preference, the first and second liquid crystal compositions are,
an outer sheath is arranged between the coating layer and the sheath layer;
a compression-resistant buffer piece is arranged between the outer sheath and the sheath layer;
each optical fiber hole is correspondingly provided with a compression-resistant buffer member, the optical fiber holes and the corresponding compression-resistant buffer members are distributed along the radial direction of the optical cable, and the compression-resistant buffer members are arranged outside the optical fiber holes;
the lateral wall that resistance to compression bolster was faced the restrictive coating is the arc for inner wall and inner wall, and the inner wall cambered surface is parallel with the lateral wall cambered surface in optical fiber hole.
As a preference, the first and second liquid crystal compositions are,
the protective sleeve is characterized in that a force guide piece is further arranged in the protective sleeve layer, each optical fiber hole is correspondingly provided with one force guide piece, and the force guide pieces and the corresponding optical fiber holes are arranged on two sides of the central shaft hole in the same diameter direction.
As a preference, the first and second liquid crystal compositions are,
the radial section of the force guide part is radial, an outer rib which faces outwards along the radial direction and inner ribs which point to two ends of the inner side wall of the corresponding optical fiber hole are arranged, and the connecting line of the circle center of the central shaft hole and the center of the outer rib bisects the included angle formed by the two inner ribs.
The invention has the beneficial effects that:
1) a stable semi-hollow structure can be formed, so that the optical fiber ribbon is not stressed directly;
2) the whole optical cable has good structural stability and pressure resistance;
3) the stranded optical fiber ribbon cable can be used for the existing layer stranded optical fiber ribbon cable and can also be independently cabled, and the stranded optical fiber ribbon cable has very good universality.
Description of the drawings:
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a schematic diagram of different fiber hole configurations;
FIG. 3 is a schematic structural view of example 2 of the present invention;
FIG. 4 is a schematic diagram of the deformation trend of optical fiber holes of different structures;
in the figure: 100 sheath layers, 100a virtual circle, 101 central shaft holes, 102a, 102b, 102c and 102d optical fiber holes, 1021 outer side walls, 1022 inner side walls, 200 reinforcing parts, 300 optical fiber ribbons, 300a multi-core optical fiber ribbons or a composite structure formed by combining a plurality of optical fiber ribbons, 400 outer sheaths, 500 compression-resistant buffering parts, 501 inner walls, 502 outer walls, 600 coating layers, 700 force guide parts, 701 outer ribs and 702 inner ribs.
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.
Example 1
A pressure-resistant ribbon optical cable having a radial cross-section as shown in fig. 1, comprising:
the optical fiber ribbon comprises a sheath layer 100 and an optical fiber ribbon 300, wherein a coating layer 600 is arranged on the outer surface of the sheath layer 100, and the coating layer 600 mainly plays a role in moisture protection, oxidation protection and the like;
the axis of the sheath layer 100 is provided with a central axial hole 101 along the axial direction of the optical cable, and a reinforcing piece 200 is arranged in the central axial hole 101 to realize the supporting and forming of the optical cable;
the sheath layer 100 is uniformly provided with a plurality of optical fiber holes 102 for accommodating optical fiber ribbons 300 along the circumferential direction of the central shaft hole 101, and the number of the optical fiber holes 102 is odd;
the optical fiber holes 102 are approximately in a round-corner spindle shape, the side wall of each optical fiber hole 102 close to the central shaft hole 101 is an inner side wall 1022, the side wall far away from the central shaft hole 101 is an outer side wall 1021, the inner side wall 1022 and the outer side wall 1021 are both arc walls, the outer side walls 1021 of the optical fiber holes 102 are all located on a virtual circle 100a, the inner side wall 1022 protrudes towards the central shaft hole 101, and the connecting position of the outer side wall 1021 and the inner side wall 1022 is a round corner;
the center of the virtual circle 100a is located on the axial line of the central axis hole 101, i.e. the virtual circle is concentric with the central axis hole 101;
the optical fiber ribbon 300 is arranged in the optical fiber hole 102, two ends of the optical fiber ribbon 300 in the long direction of the cross section are abutted against the round corners at the connection positions of the inner side wall 1022 and the outer side wall 1021 of the optical fiber hole 102 so as to fix the optical fiber ribbon 300, and the optical fiber ribbon 300 can be separated from the outer side wall 1021 and the inner side wall 1022 of the optical fiber hole 102;
through the matching arrangement of the above structures, the defect that the optical fiber ribbon 300 is easy to be directly stressed due to the adoption of the full solid configuration of the existing ribbon optical cable unit is overcome, for example, the conventional optical cable unit recorded in the technical scheme of CN201610060184.X or CN201510063890.5, and the like, namely, the optical cable unit formed by covering a plurality of ribbon optical fibers by a loose tube, the invention forms the non-tightly-packed design of the optical fiber ribbon 300 through the ingenious structural improvement, can generate a larger buffer space when being acted by the external radial pressure, and when being wholly and radially flattened by the external force, the optical fiber ribbon 300 can form a buffer space in the optical fiber hole 102, and the outer side wall 1021 and the inner side wall 1022 can not directly exert the pressure on the optical fiber ribbon 300, on the other hand, the fusiform structure of the optical fiber hole 102 enables the optical fiber ribbon 300 to form acceptable arc bending, and because the optical fibers in the, the arc-shaped bent compression-resistant ribbon-shaped optical cable is attached to the outer side wall 1021 or the inner side wall 1022 and cannot damage optical fibers, the compression-resistant ribbon-shaped optical cable with the structure is used as an optical cable unit of the existing layer-stranded ribbon-shaped optical cable, compared with an optical cable unit with a conventional full solid structure, a compression performance test (test pressure is 2500N and is kept for 1min) is carried out according to a method E3 'compression state' in GB/T7424.2-2008, the attenuation of the optical cable is reduced by 21%, the test pressure is adjusted to 3500N, and after the optical cable is kept for 1min, the attenuation of the optical cable is reduced by 29%;
if the structure of the optical fiber hole 102 is changed into a rectangle as shown in fig. 2(a), and the optical fiber ribbon abuts against the short side wall of the rectangular optical fiber hole 102a, under the condition of a test pressure of 2500N and kept for 1min, the attenuation of the optical cable is reduced by only 6% compared with that of the optical cable unit with a conventional full solid configuration; if the structure of the optical fiber hole 102 is changed into a diamond shape as shown in fig. 2(b), and the optical fiber ribbon abuts against two opposite corners of the diamond-shaped optical fiber hole 102b, under the condition of a test pressure of 2500N and maintained for 1min, the attenuation of the optical cable is reduced by 11% compared with that of the optical cable unit with a conventional full solid configuration; if the structure of the optical fiber holes 102 is changed into a pointed spindle shape as shown in fig. 2(c), and the optical fiber ribbon abuts against the opposite pointed angle of the pointed spindle-shaped optical fiber holes 102c, under the condition of a test pressure of 2500N and maintained for 1min, the attenuation of the optical cable is reduced by 14% compared with that of the optical cable unit with a conventional full solid configuration; if the structure of the optical fiber hole 102 is changed into a circular shape as shown in fig. 2(d), and the optical fiber ribbon abuts against the side wall of the circular optical fiber hole 102d, under the condition of a test pressure of 2500N and kept for 1min, the attenuation of the optical cable is reduced by 4% compared with that of the optical cable unit with a conventional full solid configuration;
through the comparison tests, the round-corner spindle-shaped optical fiber hole 102 has greater advantages compared with hole structures with other configurations, by further observing that the optical cable configured in this embodiment has relatively uniform attenuation of the individual optical fibers within ribbon 300 during the pressure test, the optical fiber attenuation in the middle of the optical fiber ribbon 300 matched with the rectangular optical fiber hole 102a is stronger, the optical fiber attenuation at two ends of the optical fiber ribbon 300 matched with the diamond-shaped optical fiber hole 102b is stronger, the optical fiber attenuation at two ends of the optical fiber ribbon 300 matched with the sharp-angled spindle-shaped optical fiber hole 102c is stronger, the optical fiber attenuation in the optical fiber ribbon 300 matched with the circular optical fiber hole 102d has larger difference and does not have generalizable regularity, it can be seen, therefore, that the rounded spindle-shaped fiber holes 102 used in this embodiment provide the best protection for the fibers in the ribbon 300, the optical fibers are stressed evenly, so that the problem that the optical fibers in the optical cable are damaged due to concentrated stress is not easy to occur;
meanwhile, the rectangular optical fiber holes 102a and the diamond-shaped optical fiber holes 102b also have the problems of high processing difficulty, easy collapse and deformation of the circular optical fiber holes 102d and the like.
Example 2
Further, the optical fiber ribbon cable of embodiment 1 can be used as a thin-diameter optical fiber ribbon cable alone, and can also be used as an optical cable unit in a thick-diameter layer-stranded optical fiber ribbon cable, and the compression resistant effect can meet the actual use requirement. However, if a large-diameter ribbon cable is formed, the compression resistance effect is still to be improved, so that the structure of the ribbon cable is improved as shown in fig. 3, and a multi-core optical fiber ribbon or a composite structure 300a formed by combining a plurality of optical fiber ribbons is replaced with the optical fiber ribbon 300;
on the basis of the compressive type strip optical cable in the embodiment 1, an outer sheath 400 is arranged between the coating layer 600 and the sheath layer 100, the outer sheath 400 and the sheath layer 100 are made of the same material, a compressive buffering member 500 is arranged between the outer sheath 400 and the sheath layer 100, the compressive buffering member 500 is made of rubber or plastic material with low cost and high compressive strength, and the compressive buffering member 500 is made of fluororubber in the embodiment;
the compression-resistant buffers 500 correspond to the optical fiber holes 102 one by one, each optical fiber hole 102 is correspondingly provided with one compression-resistant buffer 500, the optical fiber holes 102 and the corresponding compression-resistant buffers 500 are distributed along the radial direction of the optical cable, the compression-resistant buffers 500 are arranged outside the optical fiber holes 102, the cross sections of the compression-resistant buffers 500 are arc-shaped, the side wall facing the outer sheath 400 and embedded into the outer sheath 400 is an outer wall 502, the side wall facing the sheath layer 100 and embedded into the sheath layer 100 is an inner wall 501, and the arc surfaces of the inner wall 501 and the outer wall 502 are both parallel to the arc surface of the outer;
the arrangement of the compression-resistant buffer 500 can enable the stress of the outer sheath 400 to be transmitted to the sheath layer 100, the point stress of the outer sheath 400 is converted into the surface stress of the sheath layer 100 through the action of the compression-resistant buffer 500, the stress area is increased, the local stress is reduced, and the force dispersion effect is formed, and as the parallel arrangement of the compression-resistant buffer 500 and the outer side wall 1021 of the optical fiber hole 102 is corresponding to the arrangement of the outer side wall 1021 of the optical fiber hole 102, the trend of guiding the deformation of the outer side wall 1021 of the optical fiber hole 102 can be formed, under the condition that the compression-resistant buffer 500 is not arranged, the middle parts of the outer side wall 1021 and the inner side wall 1022 after the optical fiber hole 102 is stressed protrude towards the optical fiber ribbon 300, after the overlarge pressure action is applied, the outer side wall 1021 and the inner side wall 1022 can finally approach the optical fiber ribbon 300, a direct acting force is, the inner side wall 1022 and the outer side wall 1021 are not easy to press on the optical fiber ribbon 300, and a better compression-resistant effect is formed;
specifically, as shown in fig. 4(a) and 4(B), fig. 4(a) shows a case where the compression-resistant buffer 500 is not provided, the outer sidewall 1021 and the inner sidewall 1022 of the optical fiber hole 102 are both compressed and deformed in the direction of a by point stress, and a good buffering effect can be formed under the action of a small external force, when the external force increases until the external force exceeds the deformation limit of the optical fiber hole 102, both the outer sidewall 1021 and the inner sidewall 1022 form a direct contact stress on the optical fiber ribbon 300, and after the compression-resistant buffer 500 is provided, the outer sidewall 1021 is subjected to surface stress, the inner sidewall 1022 maintains a point stress trend, and is deformed in the direction of B, the deformation amount of the outer sidewall 1021 is reduced, and both generate a deformation difference, and the middle portion of the optical fiber ribbon 300 is easily bent to the outer sidewall 1021 due;
further, in the present invention,
the sheath layer 100 is further provided with a force guide member 700 as shown in fig. 3, the force guide member 700 is made of an elastic material, in this embodiment, the force guide member 700 is made of silicone rubber, each optical fiber hole 102 is correspondingly provided with one force guide member 700, and the force guide members 700 and the corresponding optical fiber holes 102 are arranged on two sides of the central shaft hole 101 in the same diameter direction;
the radial section of the force guide member 700 is radial, and is provided with an outer rib 701 which faces outwards along the radial direction and inner ribs 702 which point to two ends of the inner side wall 1022 of the corresponding optical fiber hole 102, and the connecting line of the center of the central shaft hole 101 and the center of the outer rib 701 bisects the included angle formed by the two inner ribs 702;
when the force guide member 700 is stressed, the inner rib 702 may be outwardly turned out, so as to further change the deformation tendency of the inner side wall 1022 and the outer side wall 1021 of the optical fiber hole 102, as shown in fig. 4(C), the inner side wall 1022 and the outer side wall 1021 are deformed along the direction C and are protruded towards the optical fiber ribbon 300, and the deformation amount of the inner side wall 1022 is reduced by a relatively large margin compared with that of fig. 4(b), and meanwhile, the inner rib 702 is turned out to drive the two ends of the inner side wall 1022 to be correspondingly deformed along the direction D, so as to generate a new deformation tendency, thereby making the optical fiber ribbon 300 less prone to be directly stressed in contact with the side wall of the optical fiber hole.
After the above improvement, after the outer sheath 400 and the crush-resistant buffer 500 are added to the example 1, the crush performance test (test pressure 4500N, keeping for 1min) is performed according to the method E3 "crush" in GB/T7424.2-2008, the attenuation of the optical cable is reduced by 22% compared to the structure of the example 1, the test condition is adjusted to 5500N, after keeping for 1min, the attenuation of the optical cable is reduced by 24% compared to the structure of the example 1, and after the outer sheath 400, the crush-resistant buffer 500 and the guide 700 are added to the example 1, the crush performance test is performed again according to the method E3 "crush" in GB/T7424.2-2008, the test pressure 4500N, keeping for 1min, the attenuation of the optical cable is reduced by 26% compared to the example 1, the test pressure is adjusted to 5500N, and after keeping for 1min, the attenuation of the optical cable is reduced by 41% compared to the structure of the example.
As apparent from the above test results, the pressure-resistant ribbon optical cable of the present invention has very excellent pressure-resistant properties. The multi-core independent ribbon cable can be used with a simple structure in cooperation with an existing layer stranded ribbon cable, can also be formed by arranging the outer sheath 400, the compression-resistant buffer 500, the force guide 700 and the like, and has better compression resistance.
Claims (7)
1. A pressure-resistant ribbon fiber cable, comprising:
the optical fiber cable comprises a sheath layer and an optical fiber ribbon, wherein a coating layer is arranged on the outer surface of the sheath layer;
the axis of the sheath layer is provided with a central shaft hole along the axial direction of the optical cable, and a reinforcing piece is arranged in the central shaft hole;
the sheath layer is uniformly provided with a plurality of optical fiber holes for containing optical fiber ribbons along the circumferential direction of the central shaft hole;
the lateral wall that the optical fiber hole is close to the center shaft hole is the inside wall, the lateral wall of keeping away from the center shaft hole is the lateral wall, and inside wall and lateral wall are the arc wall, and the lateral wall in a plurality of optical fiber holes all is in a virtual circle, and the inside wall is protruding towards the center shaft hole, and the junction of lateral wall and inside wall is the fillet.
2. The pressure-resistant ribbon optical cable of claim 1,
the virtual circle center is positioned on the axis of the central shaft hole.
3. The pressure-resistant type ribbon optical cable as claimed in claim 1 or 2,
the two ends of the optical fiber ribbon in the long direction of the section are abutted with the fillets at the connection parts of the inner side wall and the outer side wall of the optical fiber hole.
4. The pressure-resistant ribbon optical cable of claim 1,
the number of the optical fiber holes is odd.
5. The pressure-resistant ribbon optical cable of claim 1,
an outer sheath is arranged between the coating layer and the sheath layer;
a compression-resistant buffer piece is arranged between the outer sheath and the sheath layer;
each optical fiber hole is correspondingly provided with a compression-resistant buffer member, the optical fiber holes and the corresponding compression-resistant buffer members are distributed along the radial direction of the optical cable, and the compression-resistant buffer members are arranged outside the optical fiber holes;
the lateral wall that resistance to compression bolster was faced the restrictive coating is the arc for inner wall and inner wall, and the inner wall cambered surface is parallel with the lateral wall cambered surface in optical fiber hole.
6. The pressure-resistant ribbon optical cable of claim 5,
the protective sleeve is characterized in that a force guide piece is further arranged in the protective sleeve layer, each optical fiber hole is correspondingly provided with one force guide piece, and the force guide pieces and the corresponding optical fiber holes are arranged on two sides of the central shaft hole in the same diameter direction.
7. The pressure-resistant ribbon optical cable of claim 6,
the radial section of the force guide part is radial, an outer rib which faces outwards along the radial direction and inner ribs which point to two ends of the inner side wall of the corresponding optical fiber hole are arranged, and the connecting line of the circle center of the central shaft hole and the center of the outer rib bisects the included angle formed by the two inner ribs.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN113835171A (en) * | 2021-07-28 | 2021-12-24 | 杭州富通通信技术股份有限公司 | Light heterogeneous optical cable |
| CN114460699A (en) * | 2021-12-27 | 2022-05-10 | 富通集团（嘉善）通信技术有限公司 | Anti-distortion optical cable |
| CN114758826A (en) * | 2022-05-06 | 2022-07-15 | 深圳新澳科电缆有限公司 | Optical cable |
| CN114895417A (en) * | 2022-05-07 | 2022-08-12 | 杭州富通通信技术股份有限公司 | Optical fiber ribbon cable |
| CN114967016A (en) * | 2022-06-29 | 2022-08-30 | 深圳新澳科电缆有限公司 | Anti-distortion ribbon optical cable |
| CN114967015A (en) * | 2022-06-28 | 2022-08-30 | 杭州富通通信技术股份有限公司 | Cable with |
| CN115047575A (en) * | 2022-07-27 | 2022-09-13 | 深圳新澳科电缆有限公司 | Flat belt cable |
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|---|---|---|---|---|
| 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 |
| CN113835171A (en) * | 2021-07-28 | 2021-12-24 | 杭州富通通信技术股份有限公司 | Light heterogeneous optical cable |
| CN114460699A (en) * | 2021-12-27 | 2022-05-10 | 富通集团（嘉善）通信技术有限公司 | Anti-distortion optical cable |
| CN114460699B (en) * | 2021-12-27 | 2024-02-20 | 富通集团（嘉善）通信技术有限公司 | Anti-twisting optical cable |
| CN114758826A (en) * | 2022-05-06 | 2022-07-15 | 深圳新澳科电缆有限公司 | Optical cable |
| CN114895417A (en) * | 2022-05-07 | 2022-08-12 | 杭州富通通信技术股份有限公司 | Optical fiber ribbon cable |
| CN114967015A (en) * | 2022-06-28 | 2022-08-30 | 杭州富通通信技术股份有限公司 | Cable with |
| CN114967015B (en) * | 2022-06-28 | 2024-01-12 | 杭州富通通信技术股份有限公司 | Belt cable |
| CN114967016A (en) * | 2022-06-29 | 2022-08-30 | 深圳新澳科电缆有限公司 | Anti-distortion ribbon optical 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 |
| CN115047575A (en) * | 2022-07-27 | 2022-09-13 | 深圳新澳科电缆有限公司 | Flat belt cable |
| CN115047575B (en) * | 2022-07-27 | 2023-08-04 | 深圳新澳科电缆有限公司 | Flat belt cable |
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|---|---|
| CN112835164B (en) | 2022-05-31 |
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