Mesh optical fiber ribbon optical cable, mold for producing reinforcer and manufacturing method

Abstract

The invention relates to the technical field of communication, in particular to a netted optical fiber ribbon optical cable, a mold for producing reinforcers and a manufacturing method. The net-shaped optical fiber ribbon optical cable comprises a cable core which comprises a central optical unit and a plurality of outer-layer optical units arranged around the central optical unit; wherein the central optical unit is located in the center of the cable core; the plurality of outer-layer light units are distributed around the central light unit in a circumferential array manner; a plurality of reinforcing members which are spirally wound on the surface of the cable core and are distributed on the surface of the cable core at uniform intervals; the number of the reinforcers is the same as that of the outer-layer optical units; and the outer sheath wraps the cable core and the reinforcer. The invention has the advantages of reducing the diameter of the optical cable, improving the tensile strength and enhancing the bending performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, in particular to a mesh optical fiber ribbon cable, a mold for producing a reinforcing member and a manufacturing method. BACKGROUND

[0002] The central tube cable is a structured cable with optical fiber loose tube as the core, which is widely used in short-distance communication, security monitoring and other scenes, and has the characteristics of small outer diameter and strong pressure resistance.

[0003] The existing central tube cable has the following problems: First, the mesh optical fiber ribbon cable (as shown in Figure 1 ) has good coiling performance compared with the traditional optical fiber ribbon cable (as shown in Figure 2 ). The original intention of its development is to compress the optical fiber space ratio and minimize the cable diameter to reduce the weight of the cable. However, the existing mesh optical fiber ribbon cable has a large diameter, and the outer diameter of a 1000-core central tube cable is ≥15mm. In the scene of large information communication in data centers, it is difficult to meet the requirement of small wiring space. Second, the bending performance of the cable is insufficient, and it is difficult to meet the high bending performance requirement in construction. Third, the existing central tube cable has two or four reinforcing members symmetrically distributed on both sides of the cable core. The arrangement of the optical fiber ribbon is in a matrix form, which is difficult to provide sufficient tensile strength. Fourth, as shown in Figure 3 , the existing production process is as follows: first, the optical fibers are combined into optical fiber ribbons according to a certain arrangement. Multiple optical fiber ribbons are bundled to form the core part of the cable. A water-blocking protective layer is added outside the optical fiber ribbon bundle. Then, according to the design requirements and use environment of the cable, appropriate reinforcing member materials such as steel wire, aramid fiber (Kevlar) or glass fiber are selected. The diameter and number of reinforcing members need to be accurately calculated and designed according to the mechanical performance requirements of the cable. The reinforcing members are twisted together according to a certain twisting method to form the reinforcing structure of the cable. After twisting, the reinforcing members are evenly distributed in the center of the cable to form the skeleton structure of the cable. Finally, according to the use environment and requirements of the cable, appropriate outer sheath materials such as polyethylene (PE), polyvinyl chloride (PVC) or low-smoke halogen-free flame-retardant (LSZH) materials are selected. The selected outer sheath material is extruded by an extruder to form the outer sheath of the cable. As can be seen from the above, the existing production process needs to be divided into three processes, and the production efficiency is low.

[0004] In summary, the existence of these problems is mainly due to the limitation of the structure of the existing optical fiber ribbon, which restricts the compression of the optical fiber space ratio, and the existing reinforcing member distribution form and production process cannot simultaneously meet the requirements of small diameter, high bending performance and high tensile strength. SUMMARY

[0005] In order to solve the problems of the prior art, the application discloses a mesh optical fiber ribbon cable, a mold for producing a reinforcing member and a manufacturing method.

[0006] The technical scheme adopted by the application is as follows: In a first aspect, a mesh optical fiber ribbon cable is provided, comprising: a cable core comprising a central optical unit and a plurality of outer optical units arranged around the central optical unit; wherein the central optical unit is located at the center of the cable core; and the plurality of outer optical units are distributed in a circumferential array around the central optical unit; a plurality of reinforcing members spirally wound on the surface of the cable core and distributed at uniform intervals on the surface of the cable core; and the number of reinforcing members is the same as the number of outer optical units; an outer sheath wrapped outside the cable core and the reinforcing members.

[0007] In an embodiment of the application, the number of outer optical units is 6, and the number of reinforcing members is 6; the diameter of the reinforcing members is 0.4 mm.

[0008] In an embodiment of the application, the central optical unit and the outer optical unit each comprise an optical fiber bundle twisted from a plurality of mesh optical fiber ribbons to a preset diameter; and the optical fiber bundle is wrapped with an identification ribbon.

[0009] In an embodiment of the application, a water-blocking tape is further included, which is longitudinally wrapped on the surface of the cable core and fixed outside the cable core; and the thickness of the water-blocking tape is 0.25 mm.

[0010] In an embodiment of the application, an inner sheath is arranged between the cable core and the water-blocking tape.

[0011] In an embodiment of the application, a tear rope is further included, which is arranged between the cable core and the outer sheath.

[0012] In an embodiment of the application, the diameter of the mesh optical fiber ribbon cable is ≤10 mm.

[0013] In a second aspect, a mold for producing a reinforcing member is provided, which is used for producing the reinforcing member of the mesh optical fiber ribbon cable as described above, comprising a main body and a plurality of twisting bodies arranged in the main body and circumferentially arranged along the main body; the twisting bodies are provided with through holes; wherein the main body is arranged to fix the position of the reinforcing member and adjust the rotational twisting pitch of the reinforcing member.

[0014] In a third aspect, a manufacturing method of a mesh optical fiber ribbon cable is provided, which utilizes the mold as described above to manufacture the mesh optical fiber ribbon cable as described above, comprising the following steps: S1, twisting the optical fiber bundles together in a certain twisted manner to form a central optical unit and a plurality of outer optical units; the plurality of outer optical units are twisted around the central optical unit to form a cable core; S2, according to the pitch of the reinforcing member, rotating the wire rope by a wire rope winch and winding on the surface of the cable core in a spiral shape; S3, extruding a selected outer sheath material, and the extruded outer sheath is wrapped outside the cable core and the reinforcing member to form a mesh optical fiber ribbon cable.

[0015] In an embodiment of the present application, in step S1, a water-blocking tape is longitudinally wrapped on the surface of the cable core and fixed to the surface of the cable core.

[0016] The above technical solution of the present application has the following advantages compared with the prior art: The mesh optical fiber ribbon cable disclosed by the present application solves the problems of large diameter and insufficient mechanical strength of traditional optical cables by arranging the same number of reinforcing members as the number of optical units to spiral around the cable core and optimizing the production process, and has the advantages of reducing the diameter of the optical cable to less than 10 mm, improving the tensile strength and enhancing the bending performance. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the content of the present application more easily understood, the present application will be further described in detail below according to specific embodiments of the present application and in conjunction with the accompanying drawings.

[0018] Figure 1 is a schematic diagram of the existing mesh optical fiber ribbon cable.

[0019] Figure 2 is a schematic diagram of the existing traditional optical fiber ribbon cable.

[0020] Figure 3 is a flowchart of the manufacturing method of the existing central tube type optical cable.

[0021] Figure 4 is a schematic diagram of the structure of the mesh optical fiber ribbon cable in the present application.

[0022] Figure 5 is a sectional view of the mesh optical fiber ribbon cable in the present application.

[0023] Figure 6 is a schematic diagram of the structure of the optical fiber bundle twisting in the present application.

[0024] Figure 7 is a schematic diagram of the structure of the mold for producing the reinforcing member in the present application.

[0025] Figure 8 is a flowchart of the manufacturing method of the mesh optical fiber ribbon cable in the present application.

[0026] DESCRIPTION OF DRAWINGS 10. The meshed fiber ribbon cable; 101. The central optical unit; 102. The outer optical unit; 103. The strength member; 104. The water-blocking tape; 105. The outer jacket; 106. The tear rope; 107. The fiber bundle; 108. The identification tape; 20. The mold; 201. The main body; 202. The stranded body; 203. The through hole. DETAILED DESCRIPTION

[0027] The present application will be further described with reference to the drawings and specific examples, so that those skilled in the art can better understand the present application and implement it.

[0028] The foregoing and other technical contents, features and effects of the present application will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only with reference to the direction of the drawings. Therefore, the directional terms used are used to illustrate and not to limit the present application, and in all embodiments, the same reference numerals represent the same elements.

[0029] In the prior art, the central bundle tube type optical cable adopts a symmetrical distribution of strength members, resulting in insufficient tensile strength and a larger cable diameter. The traditional production process requires multiple processes to complete the strength member stranding and outer jacket forming, which is low in efficiency. In high-density wiring scenarios such as data centers, the existing optical cable is difficult to balance the requirements of small diameter, high bending performance and mechanical strength.

[0030] In order to solve the above problems, the optical cable structure needs to be redesigned to optimize the fiber space ratio. The existing symmetrical distribution of strength members cannot evenly disperse stress, resulting in limited tensile performance. If the number of strength members is matched with the number of optical units and distributed through spiral winding, the structural stability can be improved. At the same time, synchronous stranding of the strength members and the optical units can simplify the production process.

[0031] Therefore, in combination with Figure 4 and Figure 5 The present embodiment proposes a meshed fiber ribbon cable 10 comprising a cable core, a strength member 103 and an outer jacket 105. The cable core is composed of a central optical unit 101 and a circumferential array of outer optical units 102. The strength member 103 is uniformly wound in a spiral shape on the surface of the cable core, and the number is the same as that of the outer optical units 102. The outer jacket 105 wraps the cable core and the strength member 103.

[0032] Wherein, the cable core refers to a composite structure composed of a central optical unit 101 and an outer layer optical unit 102 distributed around it, which can be formed by twisting a plurality of optical fiber bundles 107, and space compactness is achieved by layered arrangement. The reinforcing member 103 refers to a reinforcing material spirally wound along the surface of the cable core, which can be a metal wire or a non-metal fiber, and the tensile uniformity is improved by uniform distribution. The outer sheath 105 refers to a protective layer covering the cable core and the reinforcing member 103, which can be extruded by a polymer material, and the internal structure is fixed by wrapping.

[0033] The embodiment further proposes that the number of outer layer optical units 102 is 6, and the number of reinforcing members 103 is 6; the diameter of the reinforcing member 103 is 0.4mm.

[0034] Wherein, the number of outer layer optical units 102 is 6 refers to the total number of fiber units distributed in a circular array around the central optical unit 101, which can be realized by a hexagonal symmetric layout, and this number setting can optimize the spatial distribution efficiency of the optical unit. Wherein, the number of reinforcing members 103 is 6 refers to the total number of reinforcing structures spirally wound on the surface of the cable core, which corresponds to the number of optical units to form a symmetrical support structure. Wherein, the diameter of the reinforcing member 103 is 0.4mm refers to the cross-sectional dimension of the reinforcing material, which can be controlled by the mold 20 for extrusion molding, and this size can control the overall volume of the optical cable while ensuring the tensile strength.

[0035] Specifically, when the outer layer optical unit 102 adopts six and is symmetrically distributed, the corresponding six reinforcing members 103 are uniformly wound on the surface of the cable core at the same angle interval. This symmetrical layout makes the reinforcing member 103 and the outer layer optical unit 102 form a one-to-one support relationship, which can uniformly disperse mechanical stress when the optical cable is stressed. By controlling the diameter of the reinforcing member 103 within a certain range, it not only avoids the expansion of the outer diameter of the mesh optical fiber ribbon optical cable 10 due to the diameter being too large, but also ensures that a single reinforcing member 103 has sufficient tensile strength.

[0036] The embodiment further proposes that the central optical unit 101 and the outer layer optical unit 102 each include a plurality of mesh optical fiber ribbons twisted into a predetermined diameter to form an optical fiber bundle 107; the optical fiber bundle 107 is wrapped with an identification band 108.

[0037] Wherein, as Figure 6As shown, the mesh fiber optic ribbon refers to a ribbon-like structure formed by multiple optical fibers in a cross-braiding manner. Polyester fiber can be used as the braiding material, and its braiding density can be adjusted according to the number of optical fibers. The preset diameter refers to the target outer diameter formed after the fiber bundle 107 is twisted. This can be achieved by controlling the rotation speed and traction speed of the twisting equipment. This parameter is related to the overall diameter of the mesh fiber optic cable 10. The fiber bundle 107 refers to an assembly formed by mechanically twisting multiple mesh fiber optic ribbons. A spiral twisting method can be used, and the twisting angle can be adjusted according to the bending performance requirements of the optical cable. The identification tape 108 refers to a colored identification layer wrapped around the fiber bundle 107. It can be achieved using heat-shrink tubing or coated with colored polyolefin material, and the color coding rules can be set according to the number of optical fibers.

[0038] Specifically, 12 mesh fiber ribbons are twisted using a stranding device to form a fiber bundle 107 with a diameter of 3.5 mm. During this process, the cross-braided structure of the mesh fiber ribbons allows for micro-displacement of the fibers during stranding, thereby reducing the impact of stranding stress on fiber transmission performance. The surface of the stranded fiber bundle 107 is wrapped with a color-coded identification tape 108, which is tightly adhered to the surface of the fiber bundle 107 by heat fusion or mechanical pressing. When multiple such fiber bundles 107 constitute the cable core, the different colored identification tapes 108 provide visual differentiation, facilitating rapid identification of specific fiber groups during construction.

[0039] Furthermore, due to the large number of optical cores, the mesh fiber ribbons are selected in 12-core bundles, with 12 mesh fiber ribbons forming a bundle, totaling seven fiber bundles (107). To distinguish the fiber ribbons by color, a color scheme of blue, white, blue, and white is used, with the fiber ribbons labeled #1, #2, #3, #4, #5, #6, #7, #8, #9, #10, #11, and #12, representing the blue mesh fiber ribbon bundles. The orange fiber ribbon bundles are arranged in alternating orange, white, orange, and white patterns, and so on. The white fiber ribbons are slightly different, arranged in alternating white, blue, white, and blue patterns.

[0040] This embodiment further proposes a water-blocking tape 104 that is longitudinally wrapped around and fixed to the outside of the cable core, and the thickness of the water-blocking tape 104 is 0.25mm.

[0041] The longitudinally wrapped water-blocking tape 104 refers to a strip of water-blocking material continuously wrapped along the cable core axis. Specifically, it can be made of polyester film composite water-blocking yarn or aluminum-plastic composite water-blocking tape. During the wrapping process, it is fixed to the cable core surface by hot melt adhesive bonding or mechanical pressing. The thickness of the water-blocking tape 104, 0.25mm, refers to the thickness of a single layer of the water-blocking material. This thickness can be achieved by adjusting the density of the water-blocking material substrate or the number of composite layers. This thickness ensures water-blocking performance without increasing the overall outer diameter of the optical cable.

[0042] Specifically, the water-blocking tape 104 is covered on the cable core surface by a continuous longitudinal wrapping process, and the water-blocking tape 104 is tightly attached to the cable core surface by tension control during the wrapping process. The bonding width of the longitudinally overlapped part can be controlled within the range of 2mm-4mm. The fixing method of the water-blocking tape 104 can be to bond the water-blocking tape 104 with the cable core surface after pre-coating a hot melt adhesive on the cable core surface. The thickness of the water-blocking tape 104 is optimized to meet the water tightness test requirements of the optical fiber ribbon cable 10 in the vertical direction, and to avoid air bubbles or deformation of the outer sheath 105 during extrusion due to excessive thickness.

[0043] The embodiment further proposes to provide an inner sheath between the cable core and the water-blocking tape 104.

[0044] The inner sheath refers to a protective layer between the cable core and the water-blocking tape 104, which can be implemented by an extrusion molding process using a polyethylene material, and is used to form a physical isolation layer on the cable core surface to prevent the water-blocking tape 104 from directly contacting the optical unit.

[0045] Specifically, a layer of inner sheath is wrapped on the cable core surface before the water-blocking tape 104 is longitudinally wrapped. The inner sheath is covered on the cable core surface by an extrusion molding process to form a continuous and uniform protective layer. The water-blocking tape 104 is then covered on the surface of the inner sheath in a longitudinal wrapping manner and is fixed by hot melt adhesive or mechanical pressing. The intervention of the inner sheath forms a buffer layer between the water-blocking tape 104 and the optical unit, preventing the water-blocking tape 104 from causing friction damage to the optical unit when the optical cable is bent, while maintaining the stability of the adhesion between the water-blocking tape 104 and the cable core.

[0046] The embodiment further proposes to provide a tear rope 106 between the cable core and the outer sheath 105.

[0047] The tear rope 106 refers to a rope-like structure used to assist in peeling the outer sheath 105, which can be made of high-strength fiber materials such as aramid or polyester fiber, and is pre-embedded between the cable core and the outer sheath 105 by extending along the axial direction of the optical cable. This structure can be pulled by external force to tear the tear rope 106 during construction or maintenance, so that the outer sheath 105 is cut neatly along the axial direction, avoiding damage to the internal structure caused by improper operation of the cutting tool.

[0048] Specifically, the tear rope 106 is arranged in the annular gap between the cable core and the outer sheath 105, and its position can be fixed synchronously during the wrapping process of the outer sheath 105 by an extrusion molding process. When it is necessary to peel the outer sheath 105, an axial force is applied by pulling the tear rope 106, and the outer sheath 105 is stressed and cracked at the position of the tear rope 106, thereby achieving quick and controllable sheath peeling. This design avoids the potential damage risk to the optical unit or the strength member 103 in the traditional cutting method, and does not need to increase the diameter of the optical cable additionally.

[0049] The embodiment further proposes that the diameter of the meshed optical fiber ribbon cable 10 is ≤10mm.

[0050] The diameter of the meshed optical fiber ribbon cable 10 refers to the maximum outer diameter of the cable cross section, which can be achieved by optimizing the arrangement of the optical units, the distribution density of the reinforcing member 103, and the thickness of the outer sheath 105, for example, by adopting a compact twisted structure to reduce the interlayer gap. This diameter limit reduces the overall size by compressing the fiber occupancy ratio and reducing the redundant space of non-functional materials.

[0051] Specifically, the diameter of the meshed optical fiber ribbon cable 10 is limited to no more than 10mm, and by adjusting the twisting pitch of the central optical unit 101 and the outer optical unit 102, the fiber bundle 107 is distributed at a tighter spiral angle, while controlling the pitch of the spiral winding of the reinforcing member 103 and the shrinkage rate of the extrusion molding process of the outer sheath 105, to achieve precise constraint of the outer diameter size. This scheme compresses the cable volume to a range suitable for wiring in narrow spaces while ensuring mechanical strength.

[0052] As shown in Figure 7 The embodiment further proposes a mold 20 for producing the reinforcing member 103, which is used to produce the reinforcing member 103 of the meshed optical fiber ribbon cable 10, a main body 201 and a plurality of twisted bodies 202 arranged circumferentially in the main body 201; the twisted body 202 is provided with a through hole 203; wherein the main body 201 is arranged to fix the position of the reinforcing member 103 and adjust the rotational twisting pitch of the reinforcing member 103.

[0053] The main body 201 refers to the support structure of the mold 20, which can be made of metal or high-strength composite material, used to bear the twisted body 202 and maintain its spatial position. The twisted body 202 refers to an independent unit distributed inside the main body 201, which can be achieved by detachable modular or one-piece design, and each twisted body 202 is provided with a through hole 203 inside to guide the passage path of the reinforcing member 103 material. The through hole 203 refers to the channel inside the twisted body 202, which can be designed as a circular cross section to constrain the forming trajectory of the reinforcing member 103 material. Adjusting the rotational twisting pitch refers to changing the relative motion parameters of the main body 201, such as rotational speed or pulling speed, to control the density of the spiral winding of the reinforcing member 103.

[0054] Specifically, during the operation of the mold 20, the reinforcing member 103 material is oriented and transported through the through hole 203 of the twisting body 202, and the rotating twisting pitch is adjusted by a mechanical transmission system such as the rotating head of an extruder to adapt to the requirements of different cable diameters. Through the design of the through hole 203 of the twisting body 202, the reinforcing member 103 material is limited to a spiral distribution during the passage, thereby directly forming a structure uniformly wound on the surface of the cable core. By controlling the position and motion parameters of the main body 201, the uniformity of the spacing of the reinforcing member 103 on the surface of the cable core is ensured.

[0055] As shown in Figure 8 The embodiment also proposes a manufacturing method of the mesh optical fiber ribbon cable 10, which uses the mold 20 for producing the reinforcing member 103 to manufacture the mesh optical fiber ribbon cable 10, including the following steps: S1, the optical fiber bundles 107 are twisted together in a certain twisting manner to form a central optical unit 101 and a plurality of outer optical units 102; the plurality of outer optical units 102 are twisted around the central optical unit 101 to form a cable core. This twisted structure can keep the optical fiber bundles 107 in a stable position in the optical cable, reduce the mutual friction and interference between the optical fiber bundles 107, and thus ensure the stability and reliability of optical signal transmission.

[0056] A water-blocking tape 104 with a thickness of 0.25 mm is longitudinally wrapped on the surface of the cable core. The water-blocking tape 104 not only effectively solves the problem of water seepage in the optical cable, prevents water from entering the interior of the optical cable to damage the optical fiber, but also protects the optical fiber from external mechanical forces to a certain extent. The thickness of the water-blocking tape 104 is accurately calculated and designed, which can not only meet the requirements of water-blocking performance, but also will not adversely affect the overall size and performance of the optical cable.

[0057] A single lashing yarn is used to fix the cable core after longitudinal wrapping. The pre-shrinking property of the lashing yarn plays a key role in the fixing process, but in order to prevent the lashing yarn from shrinking and generating excessive force on the optical fiber, the thickness of the water-blocking tape 104 is designed to be 0.25 mm, which can to a certain extent buffer the pressure generated by the shrinkage of the lashing yarn, protect the optical fiber from damage, and ensure the stability and safety of the optical fiber in the optical cable.

[0058] S2, according to the pitch of the reinforcing member 103, the pay-off winch rotates the pay-off wire, and passes through the mold 20 to be spirally wound on the surface of the cable core. Among them, the pay-off winch rotates the pay-off wire refers to controlling the release speed and twisting angle of the reinforcing member 103 by rotating the pay-off device, which can be realized by a mechanical transmission device with speed regulation function, to ensure that the reinforcing member 103 is uniformly wound on the surface of the cable core at a predetermined pitch. In order to make the optical cable have good tensile property, 6 reinforcing members 103 with a diameter of 0.4 mm are designed in this embodiment, which can be metal materials such as steel wires, or non-metal materials such as aramid fibers. The reasonable configuration of the reinforcing member 103 can effectively disperse the tensile force of the optical cable in the construction process, so as to ensure that the optical fiber is not affected by external force under the action of 1500N construction tensile force, and the stability of optical signal transmission and the integrity of the optical cable are maintained.

[0059] Through accurate design and optimization, the outer diameter of the optical cable is controlled within 10 mm. The control of this outer diameter size not only considers the mechanical performance and transmission performance of the optical cable, but also considers the installation and laying convenience of the optical cable, so that it can be flexibly used in various application scenarios, while meeting the industry standards and user needs.

[0060] S3, the selected outer sheath 105 material is extruded and formed, and the extruded and formed outer sheath 105 is wrapped outside the cable core and the reinforcing member 103 to form a mesh optical fiber ribbon optical cable 10.

[0061] Specifically, after the optical fiber bundle 107 is twisted to form the central optical unit 101 and the outer optical unit 102, the outer optical unit 102 is secondly twisted around the central optical unit 101 to form a cable core structure. The pay-off winch controls the release speed and rotation angle of the reinforcing member 103 according to the predetermined pitch, so that it is uniformly coated on the surface of the cable core after passing through the through hole 203 of the mold 20. The mold 20 adjusts the spatial distribution angle and twisting pitch of the twisted body 202 to ensure that the contact position and winding density of the reinforcing member 103 with the cable core meet the design requirements. The water-blocking tape 104 is covered on the surface of the cable core by longitudinal wrapping process and is fixed by hot melt adhesive to form a continuous waterproof layer. The outer sheath 105 material is heated and plasticized by the extruder and wrapped outside the cable core and the reinforcing member 103, and after cooling, the optical cable product is formed.

[0062] In the description of the embodiments of the application, it should also be noted that, unless otherwise explicitly specified and limited, if the terms "arrangement", "connection" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0063] Obviously, the above-mentioned embodiments are only examples for clearly illustrating the present application, and are not intended to limit the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and also impossible to enumerate all the embodiments. The obvious changes or variations derived from the above description are still within the protection scope of the present application.

Claims

1. A mesh-like fiber optic ribbon cable, characterized in that, include: The cable core includes a central optical unit (101) and a plurality of outer optical units (102) arranged around the central optical unit (101); wherein the central optical unit (101) is located at the center of the cable core; the plurality of outer optical units (102) are arranged in a circular array around the central optical unit (101); Multiple reinforcing members (103) are spirally wound around the surface of the cable core and distributed at a uniform spacing on the surface of the cable core; and the number of the reinforcing members (102) is the same as the number of the outer optical units (102); The outer sheath (105) is wrapped around the outside of the cable core and the reinforcing member (103).

2. The mesh fiber optic ribbon cable according to claim 1, characterized in that, The number of outer optical units (102) is 6, and the number of reinforcing members (103) is 6; the diameter of the reinforcing member (103) is 0.4 mm.

3. The mesh fiber optic ribbon cable according to claim 1, characterized in that, The central optical unit (101) and the outer optical unit (102) each include an optical fiber bundle (107) consisting of multiple mesh optical fiber ribbons twisted into a preset diameter; the optical fiber bundle (107) is wrapped with an identification tape (108).

4. The mesh fiber optic ribbon cable according to claim 1, characterized in that, It also includes a water-blocking tape (104) that is longitudinally wrapped around and fixed to the outside of the cable core; the thickness of the water-blocking tape (104) is 0.25 mm.

5. The mesh fiber optic ribbon cable according to claim 4, characterized in that, An inner sheath is provided between the cable core and the water-blocking strip (104).

6. The mesh fiber optic ribbon cable according to claim 1, characterized in that, It also includes a tear cord (106) disposed between the cable core and the outer sheath (105).

7. The mesh fiber optic ribbon cable according to claim 1, characterized in that, The diameter of the mesh fiber ribbon cable (10) is ≤10mm.

8. A mold for producing reinforcing parts, characterized in that, A reinforcing member (103) for producing a mesh fiber ribbon cable (10) as described in any one of claims 1-7 includes a main body (201) and a plurality of stranded bodies (202) disposed within the main body (201) and arranged circumferentially along the main body (201); the stranded bodies (202) have through holes (203); wherein the main body (201) is configured to fix the position of the reinforcing member (103) and adjust the rotational stranding pitch of the reinforcing member (103).

9. A method for manufacturing a mesh-like optical fiber ribbon cable, characterized in that, Manufacturing a mesh fiber ribbon cable (10) as described in any one of claims 1-7 using the mold (20) as described in claim 8 includes the following steps: S1. The optical fiber bundle (107) is twisted together in a certain twisting manner to form a central optical unit (101) and multiple outer optical units (102); the multiple outer optical units (102) are twisted around the central optical unit (101) twice to form a cable core; S2. The wire is fed by rotating the wire feeding auger according to the pitch of the reinforcing member (103) and passed through the mold (20) to be spirally wound on the surface of the cable core; S3. The selected outer sheath (105) material is extruded and molded. The extruded outer sheath (105) is wrapped around the outside of the cable core and the reinforcing member (103) to form a mesh fiber ribbon cable (10).

10. The manufacturing method according to claim 9, characterized in that, In step S1, water-blocking tape (104) is longitudinally wrapped around the surface of the cable core and the water-blocking tape (104) is fixed to the surface of the cable core.

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