CN113281865B - Pressure-resistant anti-vibration optical cable - Google Patents
Pressure-resistant anti-vibration optical cable Download PDFInfo
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- CN113281865B CN113281865B CN202110620970.1A CN202110620970A CN113281865B CN 113281865 B CN113281865 B CN 113281865B CN 202110620970 A CN202110620970 A CN 202110620970A CN 113281865 B CN113281865 B CN 113281865B
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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
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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
- G02B6/4403—Optical cables with ribbon structure
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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
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Abstract
The invention belongs to the technical field of ribbon cables, and particularly relates to a pressure-resistant vibration-resistant optical cable which comprises an outer cladding, an inner cladding and a cable core assembly, wherein the inner cladding is positioned in the outer cladding. The anti-vibration hoop is arranged between the outer covering layer and the inner covering layer and comprises a pair of outer hoops and a pair of inner hoops; the pair of outer hoops are symmetrically distributed in the left-right direction, the space is reserved between the two ends of the two outer hoops, and the pair of inner hoops are symmetrically distributed in the up-down direction and are slidably attached to the inner walls of the outer hoops. Set up the anti vibration staple bolt between outer covering and inner cladding, this anti vibration staple bolt is embraced hoop and interior staple bolt by outer and is constituteed, and be two-layer structure, wherein the outer structure pressurized back diameter of constituteing by two outer staple bolts reduces, under the effect of its self stress, alleviate partial vibration, and alleviate the residual vibration through further reducing the diameter by the inner structure of two interior staple bolts, and when the vibration is the weakest, whole anti vibration staple bolt can resume original shape, thereby support anti external vibration, protect inside cable core subassembly.
Description
Technical Field
The invention belongs to the technical field of ribbon optical cables, and particularly relates to a pressure-resistant vibration-resistant optical cable.
Background
The multi-strand cable core is arranged in the cable, and the rest structures of the cable except the cable core are mainly used for protecting the cable core, such as water resistance, bite resistance, pressure resistance, flame resistance and the like. In actual use, the cable laid on the bridge bottom, near the railway, or the like is also subjected to continuous or intermittent vibration, which causes the cable core to be in a micro-jump state, and the cable in such an environment has a large signal attenuation and a short life as compared with the cable in a static state.
Disclosure of Invention
The invention aims to provide a pressure-resistant anti-vibration optical cable, which buffers vibration layer by adding an anti-vibration hoop with contraction and relaxation functions, thereby reducing the influence of vibration on a cable core to the maximum extent.
In order to achieve the purpose, the invention provides the following technical scheme: the pressure-resistant vibration-resistant optical cable comprises an outer cladding layer, an inner cladding layer and a cable core assembly, wherein the inner cladding layer is positioned in the outer cladding layer, and the cable core assembly is positioned in the inner cladding layer. The anti-vibration hoop is arranged between the outer covering layer and the inner covering layer and comprises a pair of outer hoops and a pair of inner hoops; the one is bilateral symmetry to outer staple bolt and distributes, and reserves the interval between the both ends of two outer staple bolts, and the inner wall setting of the outer staple bolt of symmetric distribution about a pair of interior staple bolt is and slide the laminating, and reserves the interval between the both ends of two interior staple bolts. When this ribbon cable receives the extrusion or when vibrating, the staple bolt in the hoop extrusion is embraced outward for the reservation interval of outer staple bolt and interior staple bolt tip reduces, realizes reducing of anti-vibration staple bolt diameter, and when the vibration weakest or external force diminishes, outer staple bolt and interior staple bolt recover gradually.
In the technical scheme, set up the anti vibration staple bolt between outer covering and inner cladding, this anti vibration staple bolt comprises outer hoop and interior staple bolt, and be two-layer structure, wherein the outer structure that comprises two outer staple bolts reduces by the diameter after the compression, under the effect of its self stress, alleviate partial vibration, and alleviate remaining vibration through further reducing the diameter by the inner layer structure of two interior staple bolts, and when the vibration is the weakest, whole anti vibration staple bolt can resume original shape, thereby support external vibration, protect inside cable core subassembly.
Preferably, an outer limiting arm is arranged in a reserved space between two ends of the two outer hoops, is T-shaped and is provided with an unfolding arm which is in contact with the inner wall of the outer cladding and has the same curvature and a fixing arm which is connected with the unfolding arm and is fixedly connected with the inner hoops; the two sides of the fixed arm are provided with limiting pipes I with compression deformation recovery functions, and the end part of the outer hoop is inserted into a space formed by the unfolding arm and the fixed arm and is in top contact with the limiting pipes I; set up interior spacing arm in the reservation interval between the both ends of two interior staple bolts, the inner wall of the outer staple bolt of this interior spacing arm fixed connection touches the inner sheath on top, and including the both sides of spacing arm set up the spacing pipe II that has compression deformation and recover the function, the both ends top of interior staple bolt touches spacing pipe II. Interior spacing arm and outer spacing arm can restrict the displacement range of interior staple bolt and outer staple bolt respectively, and simultaneously, spacing pipe I and the tip of spacing pipe II direct contact outer staple bolt and interior staple bolt, this can provide a set of power for outer staple bolt and interior staple bolt, and this group of power finally forces outer staple bolt and interior staple bolt to get back to initial position to avoid the anti-vibration staple bolt to reduce the anti-vibration performance because of inner structure takes place the skew.
Preferably, the inner wall that contacts at outer staple bolt and interior staple bolt sets up spacing fitting piece, and this spacing fitting piece spacing groove includes spacing, spacing groove, and spacing groove extend round the axis of belted cable, and equidistant distribution on the length direction of belted cable, and relative slip can take place for spacing and spacing groove. In the length direction of the belt cable, the combination of the limiting strips and the limiting grooves enables the outer hoop and the inner hoop not to generate axial displacement difference, so that the structural stability of the whole anti-vibration hoop can be ensured, and the tensile strength of the belt cable can be ensured.
Preferably, the ends of the outer hoop and the inner hoop, which are in contact with the limiting pipe I and the limiting pipe II, are provided with hollow structures, so that the hollow structures form a vibration reduction contact head I and a vibration reduction contact head II respectively. Damping contact I and damping contact II can cushion partial vibration through deformation, can give outer staple bolt and interior staple bolt more shrink space simultaneously.
Preferably, the outer covering layer comprises an outermost outer covering layer and an innermost aramid fiber covering layer, an armor layer is arranged between the outer covering layer and the aramid fiber covering layer, and the aramid fiber covering layer is directly wrapped on the periphery of the anti-vibration hoop.
Preferably, set up at least one hollow deformation pipe on the inner sheath, this deformation pipe makes the inner sheath diameter reduce through taking place deformation when the inner sheath pressurized, and this can avoid the inner sheath to produce the deformation that can not restore to the original, and simultaneously, the deformation pipe can absorb partial vibration through deformation to further reduce the influence of vibration to the cable core subassembly.
Preferably, the space between the cable core assembly and the inner jacket is filled with a filler that keeps the fiber optic ribbon from contacting and from contacting the inner jacket, which can both absorb vibrations and provide sufficient force points for the fiber optic ribbon to maintain structural stability of the cable core assembly.
Preferably, the cable cores I are distributed in the outer hoop or/and the inner hoop along the length direction, the cable cores I can be cable cores and optical cable cores, and can also be cable cores with detection functions and other functions, and the design is used for increasing the additional functions of the ribbon cable so as to meet the following use requirements.
Preferably, the cable core assembly comprises a plurality of groups of optical fiber belts positioned in the inner cladding and a soft central tube positioned at the axis of the cable, the cross section profile of the central tube is in a regular polygon shape or a circular shape, and the plurality of groups of optical fiber belts are radially and uniformly distributed and are connected together by taking the central tube as a connecting piece. When vibration is transmitted to the inside of the ribbon cable, the ribbon cable distributed in the radial mode vibrates under the constraint of the central tube, the vibration is gradually reduced from one side close to the inner sheath to one side connected with the central tube, and the vibration can be buffered in the process. In addition, when the cable is pressed, the optical fiber ribbon in the stressed area deflects towards the side direction, and the central tube is compressed, so that the front stress and the buffer pressure are avoided.
Preferably, grooved connection seats are provided on each face of the central tube, and the optical fiber ribbons are directly installed in the connection seats during production, and meanwhile, in the connection process, the groups of optical fiber ribbons are also conveniently processed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic cross-sectional structure of an embodiment of the present invention;
FIG. 2 is a schematic view of the split state plane structure of the inner hoop and the outer hoop in FIG. 1;
FIG. 3 is a schematic perspective view of the inner hoop and the outer hoop shown in FIG. 2 in a disassembled state;
FIG. 4 is a schematic view illustrating the movement trend of the inner hoop and the outer hoop of the belt cable shown in FIG. 1 during longitudinal vibration;
fig. 5 is a schematic diagram illustrating the movement trend of the inner hoop and the outer hoop when the belt cable shown in fig. 1 vibrates in the transverse direction.
In the figure, an outer sheath 1, an armor layer 2, an aramid fiber cladding 3, an outer hoop 4, a reinforcing rib I5, a vibration reduction contact I6, an inner limiting arm 7, a limiting layer 8, an inner hoop 9, a vibration reduction contact II10, an outer limiting arm 11, a limiting pipe I12 and a limiting pipe II13The cable comprises a cable core I14, a deformation pipe 15, a reinforcing rib II16, an inner sheath 17, an optical fiber ribbon 18, a filler 19, a central pipe 20, a connecting seat 21, a reserved gap 22, a limiting strip 23, a limiting groove 24, and longitudinal vibration F 1 Transverse vibration F 2 Direction of contraction IS 1 IIS shrinkage direction 2 。
Detailed Description
The embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement the technical means for solving the technical problems and achieving the technical effects of the present application can be fully understood and implemented.
Fig. 1-3 illustrate an embodiment of the present invention, a pressure-resistant vibration-resistant optical cable. As shown in fig. 1, the anti-vibration ribbon cable comprises an outer cladding, an inner cladding and a cable core assembly, wherein the inner cladding is located in the outer cladding, the cable core assembly is located in the inner cladding, and an anti-vibration hoop is arranged between the outer cladding and the inner cladding. The inner jacket comprises an inner sheath 17 and a filler 19 filled between the inner sheath 17 and the cable core assembly. Two hollow deformation pipes 15 are symmetrically arranged on the inner sheath 17, and the diameter of the inner sheath is reduced by deformation of the deformation pipes when the inner sheath is pressed.
Specifically, the surrounding layer includes outermost oversheath 1 and innermost aramid fiber covering 3 to set up armor 2 between oversheath 1 and aramid fiber covering 3, and aramid fiber covering 3 directly wraps up the periphery at anti-vibration staple bolt. The anti-vibration hoop comprises a pair of outer hoops 4 and a pair of inner hoops 9, reinforcing ribs I5 and reinforcing ribs II16 are arranged in the outer hoops 4 and the inner hoops 9 respectively, and hollow structures are arranged at the end parts of the outer hoops 4 and the inner hoops 9 so as to form a vibration reduction contact I6 and a vibration reduction contact II10 respectively. One is left and right symmetric distribution to outer staple bolt 4, and reserves the interval between two outer staple bolts 4's both ends, and a pair of interior staple bolt 9 is upper and lower symmetric distribution and slides the inner wall setting of laminating outer staple bolt 4, and reserves the interval between two interior staple bolts 9's both ends. As shown in fig. 5, an arc-shaped limiting groove 24 is formed in the inner wall of the outer hoop 4, an arc-shaped limiting bar 23 in sliding fit with the limiting groove 24 is formed in the outer wall of the inner hoop 9, and the arc centers of the limiting bar 23 and the limiting groove 24 are located on the axis of the optical cable. These stopper grooves 24 and stopper bars 23 are equally spaced in the lengthwise direction of the belt cable.
When this ribbon cable receives the extrusion or when vibrating, hold hoop 4 extrusion interior staple bolt 9 outward for the reservation interval of outer staple bolt 4 and interior staple bolt 9 tip reduces, realizes reducing of anti-vibration staple bolt diameter, and when the vibration weakest or external force diminishes, hold hoop 4 outward and interior staple bolt 9 and recover gradually.
Specifically, set up outer spacing arm 11 in the reservation interval between the both ends of two outer staple bolts 4, this outer spacing arm 11 is the T type, and it has the exhibition arm that contacts and the camber is the same with outer covering inner wall to and connect the fixed arm of exhibition arm and fixed connection inner staple bolt 9, as shown in fig. 1, set up spacing layer 8 the same with exhibition arm camber at the lateral surface of outer staple bolt 4, and form between spacing layer 8 and the exhibition arm and reserve clearance 22. The two sides of the fixed arm are provided with a limiting tube I12 with a compression deformation recovery function, and the end part of the outer hoop 4 is inserted into a space surrounded by the display arm and the fixed arm and contacts against the limiting tube I12; spacing arm 7 in setting up in the reservation interval between two interior staple bolts 9's both ends, the inner wall of the outer staple bolt 4 of this interior spacing arm 7 fixed connection is pushed up and is touched inner sheath 17, and including the both sides setting of spacing arm 7 have compression deformation and restore spacing pipe II13 of function, the both ends of interior staple bolt 9 are pushed up and are touched spacing pipe II 13. The inner limiting arm 7 and the outer limiting arm 11 can limit the displacement range of the inner hoop 9 and the outer hoop 4 respectively, and meanwhile, the limiting pipe I12 and the limiting pipe II13 directly contact the ends of the outer hoop 4 and the inner hoop 9, so that a set of force is provided for the outer hoop 4 and the inner hoop 9, and the set of force finally forces the outer hoop 4 and the inner hoop 9 to return to the original positions, so that the vibration-proof hoop is prevented from being reduced in vibration-proof performance due to the deviation of the inner structure.
The cable core subassembly that this embodiment chooseed for use includes six groups of optical fiber bands 18, still includes the soft center tube 20 that is located the ribbon axle center, and the cross sectional profile of this center tube 20 is regular hexagon, sets up grooved connecting seat 21 in each face of center tube 20, when production, directly installs optical fiber band 18 in this connecting seat 21, simultaneously, at the in-process that continues, also is convenient for handle each group optical fiber band 18. The radially distributed ribbons 18 vibrate under the constraint of the central tube 20 as the vibration propagates to the interior of the ribbon cable, and the vibration is gradually reduced from the side near the inner jacket 17 to the side connected to the central tube 20, which also dampens the vibration. Additionally, when the ribbon is compressed, the ribbon 18 in the stressed area deflects laterally while compressing the center tube 20, thereby avoiding front stress and cushioning pressure.
For the optical cable needing to have special functions, the cable core I14 can be distributed in the inner hoop 9 along the length direction, and this part of the cable core I14 can be a cable core, an optical cable core, or a cable core with functions of detection and the like.
In the above technical scheme, set up the anti vibration staple bolt between outer cladding and inner cladding, this anti vibration staple bolt comprises outer hoop 4 and interior staple bolt 9, and is two-layer structure. When the cable is subjected to a longitudinal vibration F directed downwards as in figures 4 and 5 1 When in use, under the action of the outer sheath 1 and the outer limiting arm 11, the upper ends of the two outer hoops 4 are along the contraction direction IS 1， The right ends of the two inner hoops 9 are along the shrinkage direction IIS 2 Approaching, wherein the left end is simultaneously approached; when subjected to transverse vibration F 2 When the outer hoops 4 are under transverse pressure, the upper ends of the two outer hoops 4 still extend along the contraction direction IS 1 Close to, the right ends of the two inner hoops 9 are along the contraction direction IIS 2 The close proximity, specifically, whichever direction of vibration, causes the outer and inner hoops 4 and 9 to contract and resist the vibration by retracting and relaxing.
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.
It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, and is not to be construed as excluding other embodiments, and that the invention is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a withstand voltage anti vibration optical cable, includes surrounding layer, inner cladding and cable core subassembly, and wherein the inner cladding is arranged in the surrounding layer, and the cable core subassembly is arranged in the inner cladding, its characterized in that: arranging an anti-vibration hoop between the outer cladding layer and the inner cladding layer, wherein the anti-vibration hoop comprises a pair of outer hoops and a pair of inner hoops; the pair of outer hoops are symmetrically distributed left and right, a space is reserved between two ends of the two outer hoops, the pair of inner hoops are symmetrically distributed up and down and are arranged in a manner of being in sliding fit with the inner walls of the outer hoops, and a space is reserved between two ends of the two inner hoops;
an outer limiting arm is arranged in a reserved space between two ends of the two outer hoops, is T-shaped and is provided with an expansion arm which is in contact with the inner wall of the outer cladding and has the same curvature and a fixed arm which is connected with the expansion arm and is fixedly connected with the inner hoops; the two sides of the fixed arm are provided with limiting tubes I with compression deformation recovery functions, and the end part of the outer hoop is inserted into a space formed by the expansion arm and the fixed arm and is in top contact with the limiting tubes I; an inner limiting arm is arranged in a reserved space between two ends of the two inner hoops, the inner limiting arm is fixedly connected with the inner wall of the outer hoop and pushes against the inner sheath, limiting pipes II with compression deformation recovery functions are arranged on two sides of the inner limiting arm, and two ends of the inner hoop push against the limiting pipes II; the end parts of the outer hoop and the inner hoop, which are in contact with the limiting pipe I and the limiting pipe II, are provided with hollow structures, so that the hollow structures form a vibration reduction contact I and a vibration reduction contact II respectively.
2. A pressure resistant, vibration resistant optical cable as claimed in claim 1, wherein: the inner wall that the staple bolt and interior staple bolt contacted sets up spacing fitting piece outside, and this spacing fitting piece spacing groove includes spacing, spacing groove, and spacing groove extend round the axis of taking the cable, and equidistant distribution on the length direction of taking the cable, and relative slip can take place for spacing and spacing groove.
3. A pressure resistant, vibration resistant optical cable as claimed in claim 1, wherein: the outer covering layer comprises an outermost outer covering sleeve and an innermost aramid fiber covering layer, an armor layer is arranged between the outer covering sleeve and the aramid fiber covering layer, and the aramid fiber covering layer is directly wrapped on the periphery of the anti-vibration hoop.
4. A pressure resistant, vibration resistant optical cable as claimed in claim 1, wherein: the inner sheath is sheathe in and is set up at least one hollow deformation pipe, and this deformation pipe makes the inner sheath diameter reduce through taking place deformation when the inner sheath is compressed.
5. A pressure resistant, vibration resistant optical cable as claimed in claim 4, wherein: the space between the cable core assembly and the inner jacket is filled with a filler that keeps the fiber optic ribbon from contacting and contacting the inner jacket.
6. A pressure resistant, vibration resistant optical cable as recited in claim 4, wherein: and the cable cores I are distributed in the outer hoop or/and the inner hoop along the length direction.
7. A pressure-resistant vibration-resistant optical cable as claimed in any one of claims 1 to 6, wherein: the cable core assembly comprises a plurality of groups of optical fiber belts positioned in the inner cladding and a soft central tube positioned at the axis of the ribbon cable, the cross section profile of the central tube is in a regular polygon shape or a circular shape, and the groups of optical fiber belts are connected together by taking the central tube as a connecting piece in a radial and uniform distribution manner.
8. A pressure resistant, vibration resistant optical cable as claimed in claim 7, wherein: grooved connection seats are provided on respective faces of the central tube, in which the optical fiber ribbons are mounted.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110620970.1A CN113281865B (en) | 2021-06-03 | 2021-06-03 | Pressure-resistant anti-vibration optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110620970.1A CN113281865B (en) | 2021-06-03 | 2021-06-03 | Pressure-resistant anti-vibration optical cable |
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| CN113281865A CN113281865A (en) | 2021-08-20 |
| CN113281865B true CN113281865B (en) | 2022-07-26 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114967016B (en) * | 2022-06-29 | 2023-08-04 | 深圳新澳科电缆有限公司 | Anti-twisting ribbon optical cable |
| CN115755311B (en) * | 2023-01-10 | 2023-05-02 | 江苏亨通光电股份有限公司 | Composite layer stranded optical cable |
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| CN111897069A (en) * | 2020-08-22 | 2020-11-06 | 常熟高通智能装备有限公司 | Special-shaped compression-resistant optical cable |
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| US6449412B1 (en) * | 1998-06-30 | 2002-09-10 | Corning Cable Systems Llc | Fiber optic ribbon interconnect cable |
| TW201418547A (en) * | 2012-06-28 | 2014-05-16 | Univ Danmarks Tekniske | A construction and a tension element comprising a cable and a plurality of strakes |
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| CN113281865A (en) | 2021-08-20 |
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