CN113671645B - Combined skeleton optical cable - Google Patents
Combined skeleton optical cable Download PDFInfo
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- CN113671645B CN113671645B CN202110887697.9A CN202110887697A CN113671645B CN 113671645 B CN113671645 B CN 113671645B CN 202110887697 A CN202110887697 A CN 202110887697A CN 113671645 B CN113671645 B CN 113671645B
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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
- G02B6/4407—Optical cables with internal fluted support member
- G02B6/4409—Optical cables with internal fluted support member for ribbons
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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
- G02B6/441—Optical cables built up from sub-bundles
- G02B6/4413—Helical 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
- G02B6/4429—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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention belongs to the technical field of optical cables, in particular to a combined skeleton optical cable which comprises an outermost outer sheath and an internal cable core assembly, wherein the cable core assembly comprises a spiral central shaft and six cable core belts, the spiral central shaft is spirally twisted around the axis of the spiral central shaft, all the cable core belts are uniformly arranged around the spiral central shaft, and a buckling structure is arranged at the contact part of the spiral central shaft and the cable core belts; a cable core cavity is arranged in the middle of the cable core belt, and the optical fiber belt is filled in the cable core cavity; the cable core assembly further comprises shoulder strap clamping pieces, and the shoulder strap clamping pieces are used for fixing two adjacent cable core straps together. The whole framework structure is formed by combining a cable core belt, a shoulder strap clamping piece and a spiral middle shaft, wherein the cable core belt and the shoulder strap clamping piece are in a flat strip shape extending in a natural state, so that the optical fiber belt is easily placed into a cable core cavity of the cable core belt during production, after the cable core belt, the shoulder strap clamping piece and the shoulder strap clamping piece are combined, an additional installation process is assisted under the action of the spiral middle shaft, and a formed cable core assembly is in a spiral distortion state integrally.
Description
Technical Field
The invention belongs to the technical field of optical cables, and particularly relates to a combined skeleton optical cable.
Background
The skeleton type optical cable is an optical cable comprising an inner skeleton, the core of which is embedded in the groove of a spiral plastic skeleton by a primary coated optical fiber, and the optical fiber can be less affected by the lateral pressure. The material, the manufacturing process, the spiral pitch, the shape and the size of the groove and the smoothness of the framework have great influence on the performance of the optical fiber. The existing skeleton type optical cable can be divided into two types of a groove single fiber and a groove multi-fiber, because the optical fiber is arranged in a spiral skeleton groove of the optical cable prepared in advance, the optical fiber can move freely, and the skeleton bears axial tension and lateral pressure, the mechanical property and the shock resistance are excellent, and the optical fiber micro-bending loss caused in cabling is small. However, for the multi-core-count skeleton type optical cable, because the skeleton is spiral, the phenomenon that the optical fiber cannot be smoothly embedded into the groove body exists in the whole processing process of the optical cable, the process is complex, and the cost is high.
Disclosure of Invention
The invention aims to provide an optical cable with a combined skeleton structure, which is provided with a straight and extended cable core belt, can accurately and quickly fill the optical fiber belt into the optical fiber belt, and then assembles the skeleton structure together, thereby solving the problem of high production difficulty of the existing skeleton optical cable with large core number.
In order to achieve the purpose, the invention provides the following technical scheme: the combined type skeleton optical cable comprises an outer sheath at the outermost layer, a cable core assembly inside the outer sheath, and an inner cladding layer assembly located between the outer sheath and the cable core assembly. The cable core assembly comprises a spiral middle shaft and at least three strip-shaped cable core belts with the same cross section shape, wherein the spiral middle shaft is spirally twisted around the axis of the spiral middle shaft, all the cable core belts are uniformly arranged around the spiral middle shaft, a buckling structure is arranged at the contact part of the spiral middle shaft and the cable core belts, the cable core belts and the spiral middle shaft are buckled together, and the whole cable core assembly is in a bolt twisting shape under the action of the spiral structure of the spiral middle shaft; a cable core cavity is arranged in the middle of the cable core belt, and the optical fiber belt is filled in the cable core cavity; the top of the cable core cavity is provided with an operation opening, the opening width of the operation opening is smaller than the width of the cable core cavity, and the operation opening extends along the length direction of the cable core cavity; the top of the adjacent side of the cable core belt is provided with a hooking groove, the cable core assembly further comprises a long-strip-shaped shoulder belt clamping piece with two hooking parts, and the two adjacent cable core belts are fixed together by the shoulder belt clamping piece through the hooking parts and the hooking groove clamping.
As a preferable scheme of the combined type skeleton optical cable, a belt cladding is wrapped on the periphery of the cable core assembly, is made of a non-metal flame-retardant material and is spirally wound along the length direction of the optical cable, and the overall coverage of the appearance of the cable core assembly is realized. In production, after the cable core belt, the spiral middle shaft and the shoulder belt clamping piece are combined, the combined cable core assembly can be further shaped and fixed by winding the belt covering layer, so that the combined cable core assembly has a stable combination relation, and a subsequent protective layer can be conveniently processed.
As a preferred scheme of the shoulder strap clamping piece in the combined type skeleton optical cable, the cross section of the shoulder strap clamping piece is in a flat E shape and comprises an arc-shaped overlapping part at the top and an inserting part extending downwards from the middle part of the overlapping part, the hooking part is positioned at two ends of the overlapping part, and the hooking part is drawn close to and extends towards the inserting part; and the adjacent side surfaces of the cable core belts are provided with avoidance ports, two adjacent avoidance ports are combined to form an avoidance slot, and the inserting part is inserted into the avoidance slot. After the cable core belts are clamped on the spiral middle shaft, the shoulder belt clamping pieces are hooked with two adjacent hooking grooves through the hooking parts at the two ends, and locking of the adjacent cable core belts is realized under the action of the lapping parts, and all the cable core belts and the shoulder belt clamping pieces are combined to realize fixing of all the cable core belts; in addition, the inserting part extends into the avoiding slot, the structural strength of the whole shoulder strap clamping piece can be increased, and meanwhile, the stable installation position of the shoulder strap clamping piece can be guaranteed under the limitation of the avoiding opening.
To above-mentioned fastener is shouldered to E type, set up in the tip that inlays the portion of inserting and keep away from the overlap joint portion and assist the muscle, and should assist the muscle and make by non-metallic material, assist the tensile strength that the muscle both can increase the fastener is shouldered, also can reduce simultaneously and inlay the deformation length of portion of inserting and prevent its fracture to the structural strength and the installation stability that make the fastener are shouldered all obtain further improvement.
As the preferred scheme of the spiral middle shaft in the combined skeleton optical cable, the middle part of the spiral middle shaft is provided with a main reinforcing rib extending along the length direction, the main reinforcing rib is a steel strand formed by stranding at least three steel wires or a woven steel wire pipe formed by the steel wires, and the main reinforcing rib of the steel strand or the woven steel wire pipe has a rough surface, so that the spiral middle shaft can be ensured to have enough tensile strength, and meanwhile, each section of the spiral middle shaft can be firmly combined with the main reinforcing rib, and the separation and independent deformation of the spiral middle shaft and the main reinforcing rib are avoided.
As a further preferable scheme of the spiral middle shaft with the structure, a plurality of deformation cavities extending along the length direction are arranged inside the spiral middle shaft, the number of the deformation cavities corresponds to the number of the cable core belts one by one, and each deformation cavity is positioned in the middle of the cable core belt and the main reinforcing rib when viewed from the cross section of the spiral middle shaft; the part between adjacent deformation cavities is a support column, and all the support columns are distributed in a radial shape. When the whole optical cable is extruded, the deformation cavity buffers partial extrusion force through deformation, the stress of the cable core belt is reduced, and meanwhile, the cable core belt moves towards the direction of the deformation cavity to reduce the damage probability; in addition, the deformation cavity can reduce the weight of the spiral middle shaft, so that the weight of the optical cable in unit length is reduced.
As a further preferable scheme of the spiral middle shaft with the shape variable cavity, the buckling structure comprises an insertion groove arranged in the middle of the bottom of the cable core belt, the insertion groove is narrow in opening and wide in groove bottom; the buckling structure also comprises inserting heads arranged on the surface of the spiral middle shaft, the number of the inserting heads corresponds to the number of the inserting grooves one by one, and the shapes of the inserting heads are matched with the shapes of the inserting grooves; the plug is just to the deformation chamber, and the width in deformation chamber is less than the width of plug root, and two adjacent support columns support the plug that corresponds. Because the width of the deformation cavity is less than the width of the root of the inserting head, when a certain inserting head direction is extruded, the inserting head can not directly collapse in the deformation cavity, but transmits force to two adjacent supporting columns, and transmits the force to the inner part of the spiral middle shaft and the two sides of the supporting columns by the supporting columns, so that a plurality of deformation cavities can participate in deformation, the buffering effect can be improved, the recovery performance can be ensured, and the service life of the spiral middle shaft is prolonged.
As the preferred scheme of the cable core belt in the combined skeleton optical cable, water-blocking grease is filled in the cable core cavity and wraps the optical fiber belt, the outer sheath and the inner sheath group serve as the first two waterproof barriers of the optical cable, and the water-blocking grease in the cable core cavity can respectively carry out water-blocking protection on the optical fiber belt in the strand of cable core belt and serve as the third water-blocking barrier of the optical cable.
As a further preferred scheme of the core belt in the combined skeleton optical cable, shielding edges are respectively arranged on two sides of an operation opening at the top of a cable core cavity, the operation opening is sealed after the shielding edges are closed, the whole core belt can deform towards two sides by taking the bottom of the cable core cavity as a joint, and through deformation, the two shielding edges are opened to form the operation opening. The shading edge can seal the operation opening, the optical fiber ribbons which are installed in place can be limited, the optical fiber ribbons are prevented from being separated from the grooves, and the scheme that water blocking grease is filled in the cavity of the cable core can prevent the water blocking grease from flowing outwards.
For the further preferable scheme of the cable core belt with the shielding edges, the thickness of the connecting part of the shielding edges and the cable core belt is larger than that of the connecting part of the two shielding edges, in the same group of shielding edges which are mutually contacted, the contact end part of one shielding edge is provided with a groove, the contact end part of the other shielding edge is provided with a convex strip, and when the two shielding edges are contacted, the convex strip is in matched contact with the groove. Two hide along supporting each other, can prevent that the cable core area from to cable core chamber deformation, consequently can protect the inside ribbon of cable core chamber not receive the extrusion.
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 view of a modular skeletal cable according to the present invention;
FIG. 2 is a schematic structural diagram of a combined-type framework optical cable in a ring-stripping state according to the present invention;
FIG. 3 is a schematic cross-sectional view of a portion of a core assembly of a composite optical fiber cable according to the present invention;
FIG. 4 is a schematic view of the shoulder strap clip of FIG. 1;
FIG. 5 is a schematic view of the construction of the core belt of FIG. 1;
FIG. 6 is a schematic representation of the deformation of the ribbon of FIG. 5 as it is filled with a ribbon;
fig. 7 is a schematic structural view of the screw central shaft in fig. 1.
In the figure, an outer sheath 1, an inner bag group 2, a belt cladding 3, a cable core belt 4, a shoulder strap fastener 5, a spiral middle shaft 6, a cable core cavity 7, an optical fiber belt 8, water-blocking ointment 9, an insertion joint 10, a deformation cavity 11, a main reinforcing rib 12, an insertion groove 41, a shielding edge 42, a hooking groove 43, an avoiding port 44, a groove 45, a convex strip 46, an operation port 47, an insertion part 51, a lapping part 52, a hooking part 53 and an auxiliary reinforcing rib 54.
Detailed Description
Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.
Fig. 1-7 illustrate an embodiment of a modular skeletal cable according to the present invention. As shown in fig. 1, the combined type skeleton optical cable includes an outermost outer sheath 1 and an inner core assembly, wherein the core assembly is arranged in a spirally twisted manner and includes a skeleton structure and an optical fiber ribbon 8. This combination formula skeleton optical cable still includes the interior packet of group 2 that is located between oversheath 1 and the cable core subassembly, and this interior packet of group 2 includes armor, flame retardant coating and waterproof layer at least.
The invention focuses on improving the framework structure in the cable core assembly, and particularly the cable core assembly comprises a spiral middle shaft 6 and six long strip-shaped cable core belts 4 with the same cross section shape, wherein the spiral middle shaft 6 is spirally twisted around the axis of the spiral middle shaft, and the center of the spiral middle shaft is provided with a main reinforcing rib 12 made of a steel strand. All the cable core belts 4 are uniformly arranged around the spiral middle shaft 6, and are buckled together through a buckling structure before the spiral middle shaft 6 and the cable core belts 4, and under the action of the spiral structure of the spiral middle shaft 6, the whole cable core assembly is in a bolt twisting shape. As shown in fig. 3, a core cavity 7 is provided in the middle of each core ribbon 4, and the core cavity 7 is filled with an optical fiber ribbon 8. This top in cable core chamber 7 sets up operation mouth 47, and operation mouth 47 extends along the length direction in cable core chamber 7, in addition, set up respectively in the operation mouth 47 both sides at cable core chamber 7 top and hide edge 42, hide to seal operation mouth 47 after the edge 42 is closed, and whole cable core area 4 can use the bottom in cable core chamber 7 to warp to both sides as the junction, through warping, two parts hide to open along 42, and form above-mentioned operation mouth 47, in production, pack into cable core chamber 7 with optic fibre area 8 from operation mouth 47, and pack the factice 9 that blocks water in cable core chamber 7, and under the sealing effect who hides edge 42, the factice 9 that blocks water can not flow out from cable core chamber 7. In this embodiment, the outer sheath 1 and the inner sheath group 2 serve as the first two waterproof barriers of the optical cable, and the water-blocking ointment 9 in the cable core cavity 7 can respectively perform water-blocking protection on the optical fiber ribbons 8 in the cable core ribbon 4 to serve as the third water-blocking barrier of the optical cable. In addition, the top of the adjacent side of the cable core belt 4 is provided with a hooking groove 43, the cable core assembly further comprises a strip-shaped shoulder belt clamp 5 with two hooking parts 53, and the two adjacent cable core belts 4 are fixed together by the shoulder belt clamp 5 through the clamping of the hooking parts 53 and the hooking grooves 43.
According to the structure, the whole framework structure is formed by combining the cable core belt 4, the shoulder strap clamping pieces 5 and the spiral middle shaft 6, wherein the cable core belt 4 and the shoulder strap clamping pieces 5 are in a flat extending strip shape in a natural state, therefore, the optical fiber belt 8 is easily placed into the cable core cavity 7 of the cable core belt 4 in production, after the three are combined, an additional installation process is assisted under the action of the spiral middle shaft 6, and the formed cable core assembly is in a spiral distortion state integrally.
In this embodiment, the cable core assembly is wrapped with a band cladding 3, the band cladding 3 is made of a non-metallic flame retardant material, and is spirally wound along the length direction of the optical cable, so as to cover the entire outer surface of the cable core assembly. In production, after combining cable core area 4, spiral axis 6 and baldric fastener 5, can further moulding fixed to combination formula cable core subassembly through winding band covering 3, make it have stable combinatorial relation to make things convenient for the processing of follow-up protective layer, in addition, make band covering 3 by non-metallic flame retardant material and can overcome the gap or the recess on combination formula cable core subassembly surface, thereby obtain the regular cable core structure in surface, reduce the air volume that the in-process of exterior structure production is detained in the cable core inside.
In addition, the cross section of the shoulder strap clip 5 used in the present embodiment is formed in a flat E-shape, including the arc bridging portion 52 at the top and the inserting portion 51 extending downward from the middle of the bridging portion 52, the auxiliary reinforcement 5 is provided in the end of the inserting portion 51 away from the bridging portion 52, and the auxiliary reinforcement 5 is made of a non-metallic material, the auxiliary reinforcement 5 can both increase the tensile strength of the shoulder strap clip 5, and at the same time, can also reduce the deformation length of the inserting portion 51 and prevent the breakage thereof. The hooking portions 53 are located at both ends of the overlapping portion 52, and the hooking portions 53 extend toward the insertion portion 51. The adjacent side surfaces of the cable core belt 4 are provided with avoidance ports 44, two adjacent avoidance ports are combined to form an avoidance slot, and the inserting part 51 is inserted into the avoidance slot. After the cable core belts 4 are clamped on the spiral middle shaft 6, the shoulder belt clamping pieces 5 are hooked with the two adjacent hooking grooves 43 through the hooking parts 53 at the two ends, and the locking of the adjacent cable core belts 4 is realized under the action of the overlapping parts 52, and all the cable core belts 4 are combined with the shoulder belt clamping pieces 5, so that the fixing of all the cable core belts 4 can be realized; in addition, the insertion portion 51 extends into the avoiding slot, which can increase the structural strength of the entire shoulder strap buckle 5, and at the same time, can ensure that the shoulder strap buckle 5 maintains a stable installation position under the limitation of the avoiding opening 44.
In order to prevent deformation of the core cable 4 toward the core cable cavity 7, in this embodiment, the thickness of the connecting portion of the cover edge 42 and the core cable 4 is greater than the thickness of the connecting portion of the two cover edges 42, and in the same set of mutually contacting cover edges, a groove 45 is provided at the contacting end of one cover edge 42, a protrusion 46 is provided at the contacting end of the other cover edge 42, and when the two cover edges contact, the protrusion 46 is in fit contact with the groove 45. The two rims 42 support each other to improve the compression resistance of the core ribbon 4 itself and to protect the optical fiber ribbon 8 inside the core chamber 7 from compression.
In this embodiment, six deformation cavities 11 extending along the length direction are arranged inside the spiral middle shaft 6, and each deformation cavity 11 is located in the middle of the core belt 4 and the main reinforcing rib 12 when viewed from the cross section of the spiral middle shaft 6; due to the deformation chambers 11, support columns are formed between adjacent deformation chambers 11, and all the support columns are distributed in a radial shape. When the whole optical cable is extruded, the deformation cavity 11 buffers partial extrusion force through deformation, so that the stress of the cable core belt 4 is reduced, and meanwhile, the cable core belt 4 moves towards the deformation cavity 11 to reduce the damage probability; in addition, the deformation chamber 11 can reduce the weight of the helical central shaft 6, thereby reducing the weight of the optical cable per unit length.
As shown in fig. 5 and 3, the fastening structure for fastening between the cable core belt 4 and the spiral central axis 6 comprises an insertion groove 41 arranged in the middle of the bottom of the cable core belt 4, wherein the insertion groove 41 has a narrow opening and a wide groove bottom; the buckling structure further comprises inserting heads 10 arranged on the surface of the spiral middle shaft 6, the number of the inserting heads 10 corresponds to the number of the inserting grooves 41 one by one, and the shapes of the inserting heads 10 are matched with the shapes of the inserting grooves 41; the inserting and combining heads 10 are opposite to the deformation cavity 11, the width of the deformation cavity 11 is smaller than that of the root parts of the inserting and combining heads 10, and the two adjacent support columns support the corresponding inserting and combining heads 10. Because the width of the deformation cavity 11 is less than the width of the root of the plug 10, when a certain plug 10 is extruded, the plug 10 can not directly collapse in the deformation cavity 11, but transmits the force to two adjacent support columns, and transmits the force to the inside of the spiral middle shaft 6 and two sides of the support columns by the support columns, so that the deformation cavities 11 can all participate in deformation, the buffering effect can be improved, the recovery performance can be ensured, and the service life of the spiral middle shaft 6 is prolonged.
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 phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in articles of commerce or systems including such elements.
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, but is not to be construed as excluding other embodiments and 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 (10)
1. Combination formula skeleton optical cable includes outermost oversheath and inside cable core subassembly to and be located the interior packet group between oversheath and the cable core subassembly, its characterized in that: the cable core assembly comprises a spiral middle shaft and at least three strip-shaped cable core belts with the same cross section shape, wherein the spiral middle shaft is spirally twisted around the axis of the spiral middle shaft, all the cable core belts are uniformly arranged around the spiral middle shaft, a buckling structure is arranged at the contact part of the spiral middle shaft and the cable core belts, the cable core belts and the spiral middle shaft are buckled together, and the whole cable core assembly is in a bolt twisting shape under the action of the spiral structure of the spiral middle shaft; a cable core cavity is arranged in the middle of the cable core belt, and the optical fiber belt is filled in the cable core cavity; the top of the cable core cavity is provided with an operation opening, the opening width of the operation opening is smaller than the width of the cable core cavity, and the operation opening extends along the length direction of the cable core cavity; the top of the adjacent side of the cable core belt is provided with a hooking groove, and the cable core assembly further comprises a strip-shaped shoulder belt clamping piece with two hooking parts, and the two adjacent cable core belts are fixed together by the shoulder belt clamping piece through the hooking parts and the hooking groove clamping.
2. The modular skeletal cable of claim 1, wherein: and a band covering layer is wrapped on the periphery of the cable core assembly, is made of a non-metal flame-retardant material and is spirally wound along the length direction of the optical cable, and the appearance of the cable core assembly is completely covered.
3. The modular skeletal cable of claim 1, wherein: the cross section of the shoulder strap clamping piece is in a horizontally arranged E shape and comprises an arc-shaped overlapping part at the top and an inserting part extending downwards from the middle of the overlapping part, the hooking parts are positioned at two ends of the overlapping part, and the hooking parts are drawn together and extend towards the inserting part; and the adjacent side surfaces of the cable core belts are provided with avoidance ports, two adjacent avoidance ports are combined to form avoidance slots, and the inserting part is inserted into the avoidance slots.
4. The modular skeletal cable of claim 3, wherein: an auxiliary reinforcing rib is arranged in the end part of the inserting part far away from the overlapping part, and the auxiliary reinforcing rib is made of non-metal materials.
5. The modular skeletal cable of claim 1, wherein: the middle part of the spiral middle shaft is provided with a main reinforcing rib extending along the length direction, and the main reinforcing rib is a steel strand formed by stranding at least three steel wires or a braided steel wire pipe formed by the steel wires.
6. The modular skeletal cable of claim 5, wherein: a plurality of deformation cavities extending along the length direction are arranged inside the spiral middle shaft, the number of the deformation cavities corresponds to the number of the cable core belts one to one, and each deformation cavity is positioned in the middle of the cable core belt and the main reinforcing rib when being observed from the cross section of the spiral middle shaft; the part between adjacent deformation cavities is a support column, and all the support columns are distributed in a radial shape.
7. The modular skeletal cable of claim 6, wherein: the buckling structure comprises an inserting groove arranged in the middle of the bottom of the cable core belt, the opening of the inserting groove is narrow, and the bottom of the groove is wide; the buckling structure also comprises inserting heads arranged on the surface of the spiral middle shaft, the number of the inserting heads corresponds to the number of the inserting grooves one by one, and the shapes of the inserting heads are matched with the shapes of the inserting grooves; the plug is just to the deformation chamber, and the width in deformation chamber is less than the width of plug root, and two adjacent support columns support the plug that corresponds.
8. The modular skeletal cable of claim 1, wherein: and water-blocking grease is filled in the cable core cavity, and the optical fiber ribbon is wrapped by the water-blocking grease.
9. The modular skeletal cable of any of claims 1 to 8, wherein: the two sides of the operation port at the top of the cable core cavity are respectively provided with a shielding edge, the shielding edges are closed and then seal the operation port, the whole cable core belt can deform towards two sides by taking the bottom of the cable core cavity as a joint, and the two shielding edges are opened through deformation to form the operation port.
10. The modular skeletal cable of claim 9, wherein: hide along the thickness that links to each other the position with the cable core area and be greater than two and hide the thickness that meets the department position along, and in the same group of mutual contact hide along, the contact tip that one was sheltered along sets up the recess, and the contact tip that another was sheltered along sets up the sand grip, and when two were sheltered along the contact, sand grip and recess cooperation contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110887697.9A CN113671645B (en) | 2021-08-03 | 2021-08-03 | Combined skeleton optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110887697.9A CN113671645B (en) | 2021-08-03 | 2021-08-03 | Combined skeleton optical cable |
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| CN113671645A CN113671645A (en) | 2021-11-19 |
| CN113671645B true CN113671645B (en) | 2023-03-14 |
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| CN114967016B (en) * | 2022-06-29 | 2023-08-04 | 深圳新澳科电缆有限公司 | Anti-twisting ribbon optical cable |
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| JP2003337267A (en) * | 2002-05-17 | 2003-11-28 | Sumitomo Electric Ind Ltd | Optical fiber cable |
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| CN2876812Y (en) * | 2006-03-09 | 2007-03-07 | 深圳市特发信息股份有限公司光缆分公司 | Unidirectional skeleton type optical fiber band optical cable |
| JP5377460B2 (en) * | 2010-11-05 | 2013-12-25 | 日本電信電話株式会社 | Optical fiber tape and optical fiber cable |
| CN201965269U (en) * | 2010-12-27 | 2011-09-07 | 杭州富通通信技术股份有限公司 | Easy-to-separate skeleton optical-fiber-protected optical cable |
| JP2013205501A (en) * | 2012-03-27 | 2013-10-07 | Sumitomo Electric Ind Ltd | Optical fiber ribbon and optical fiber cable including optical fiber ribbon |
| CN107577016A (en) * | 2017-10-03 | 2018-01-12 | 于洋 | Cable configuration |
| CN111403097B (en) * | 2020-04-21 | 2024-04-16 | 国网湖北省电力有限公司鄂州供电公司 | Cable with clamping structure, optical cable and optical cable |
| CN211955930U (en) * | 2020-05-20 | 2020-11-17 | 杭州燕青科技有限公司 | Multimode shielding optical cable |
| CN111897069B (en) * | 2020-08-22 | 2024-05-28 | 河北哈鑫科技有限公司 | Special-shaped compression-resistant optical cable |
| CN112466541B (en) * | 2020-09-30 | 2022-07-26 | 杭州富通电线电缆有限公司 | Cable with improved insulation |
| CN213149326U (en) * | 2020-10-14 | 2021-05-07 | 合肥兴联通讯有限公司 | Wading towing optical cable with protection performance |
-
2021
- 2021-08-03 CN CN202110887697.9A patent/CN113671645B/en active Active
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