A new type of multi-beam tube type high-fiber count miniature indoor wiring optical cable

Abstract

The utility model relates to the technical field of optical cable, disclose a novel multi -beam pipe formula big core number miniature indoor wiring optical cable, including the core reinforcing part, the outside fixed connection of core reinforcing part has the sub -tube, the inner chamber of sub -tube is equipped with first aramid reinforcing part, the inner chamber of sub -tube contains the colored optical fiber, the inner chamber of sub -tube is equipped with first water -blocking yarn, and first water -blocking yarn and first aramid reinforcing part fill in the periphery of colored optical fiber, the outside fixed connection of core reinforcing part has filling group, and filling group includes second aramid reinforcing part and second water -blocking yarn, second aramid reinforcing part and second water -blocking yarn fill, the outside fixed connection of sub -tube and filling group has the wrapping tape, the outside fixed connection of wrapping tape has the tear rope, the outside fixed connection of wrapping tape has the water -blocking glass, the outside fixed connection of water -blocking glass has the outer sheath, the overall size is more space -saving compared with traditional optical cable, soft and easy to use, flexible sub -tube configuration mode and the selection of core reinforcing part material, so that the optical cable can be applicable to different use scene and demand, especially when using metal reinforcing part, can greatly improve the overall physical and mechanical properties of product.

Description

Technical Field

[0001] This utility model relates to the field of optical cable technology, specifically to a novel multi-bundle tube type large core count micro indoor wiring optical cable. Background Technology

[0002] With the development of information and communication, the volume of information and communication is increasing, so more cables need to be accommodated in a limited space. However, the available channels and conduits for cabling are limited, especially in cases of old house renovation and cabling upgrade. During construction, there are often other lines in the channels or conduits, and the available cabling space is even smaller. Therefore, transmission cables need to be thinner and more flexible to facilitate construction while maintaining basic performance.

[0003] For example, CN106646795A discloses a multi-scenario indoor cabling optical cable, including a micro flexible optical cable and a large-core-count flexible optical cable. The micro flexible optical cable includes a first cable core and a reinforcing layer and a sheath sequentially covering the first cable core. The first cable core includes multiple micro-tight-buffered optical fiber units, each of which consists of an optical fiber and a tight-buffered sheath covering the optical fiber. The large-core-count flexible optical cable includes a second cable core and a wrapping tape layer and an outer sheath sequentially covering the second cable core. The second cable core includes a central reinforcing member and multiple micro flexible optical fibers stranded around the central reinforcing member. This invention has a thinner outer diameter and better bending flexibility than traditional optical cables with the same core count capacity, enabling deployment in confined spaces such as cable trays, conduits, and junction boxes in buildings.

[0004] Traditional indoor fiber optic cables often have a large outer diameter, resulting in thicker, heavier, and stiffer products. This makes it difficult to produce long sections during manufacturing. Furthermore, the large and heavy reels make installation inconvenient, and the thickness and weight of the cable can cause significant compression of the inner coils, leading to deformation and potentially affecting product performance. Therefore, this art provides a novel multi-bundle tube-type large-core-count miniature indoor fiber optic cable to address the problems mentioned in the background. Utility Model Content

[0005] The purpose of this utility model is to provide a novel multi-bundle tube type large core count miniature indoor wiring optical cable, which solves the problems in the existing technology where the large and heavy reels are inconvenient to operate during indoor wiring construction, and the thick and heavy optical cable can easily cause great compression of the inner ring cable when placed on the optical cable reel, resulting in deformation of the inner ring optical cable and even affecting product performance.

[0006] This utility model provides the following technical solution: a novel multi-bundle tube-type large-core-count miniature indoor wiring optical cable, including a core reinforcement member, a sub-tube fixedly connected to the outer side of the core reinforcement member, a first aramid reinforcement member provided in the inner cavity of the sub-tube, a colored optical fiber contained in the inner cavity of the sub-tube, a first water-blocking yarn provided in the inner cavity of the sub-tube, and the first water-blocking yarn and the first aramid reinforcement member filling the area around the colored optical fiber, a filling group fixedly connected to the outer side of the core reinforcement member, the filling group including a second aramid reinforcement member and a second water-blocking yarn, the second aramid reinforcement member and the second water-blocking yarn being interwoven, a wrapping tape fixedly connected to the outer side of the sub-tube and the filling group, a tear cord fixedly connected to the outer side of the wrapping tape, a water-blocking glass yarn fixedly connected to the outer side of the wrapping tape, and an outer sheath fixedly connected to the outer side of the water-blocking glass yarn.

[0007] As a preferred embodiment of the above technical solution, the sub-tube is fixedly connected to the inner cavity of the wrapping tape, the inner cavity of the sub-tube can accommodate twelve colored optical fibers, and the inner cavity of the wrapping tape can accommodate three sets of sub-tubes and one filler set or four sets of sub-tubes.

[0008] As a preferred embodiment of the above technical solution, the core reinforcement is located at the center of the strap, and the sub-tubes are arranged in layers around the core reinforcement as the axis, and are fixedly wrapped by the strap and the outer sheath to form a layered structure.

[0009] As a preferred embodiment of the above technical solution, the sub-tube is filled with a combination structure of a first aramid reinforcing member and a first water-blocking yarn. The first aramid reinforcing member is used to provide radial tensile strength and buffer protection for the colored optical fiber. The first water-blocking yarn forms a water-blocking barrier in the sub-tube. The first aramid reinforcing member and the first water-blocking yarn are distributed around the colored optical fiber in a parallel filling manner.

[0010] As a preferred embodiment of the above technical solution, the core reinforcement is made of metal, a mixture of metal and non-metal, or a non-metal.

[0011] As a preferred embodiment of the above technical solution, the water-blocking glass yarn is composed of glass fiber and water-blocking material composite, in order to replace the commonly used aramid material.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The core reinforcement of this invention serves as the core support. The sub-tube and the internal first aramid reinforcement and first water-blocking yarn directly protect the colored optical fiber. The filling group, wrapping tape, water-blocking glass yarn, and outer sheath enhance the overall strength, water-blocking performance, and resistance to external interference of the optical cable. The stranded structure design gives the optical cable good flexibility and torsion resistance, facilitating construction and laying. At the same time, the flexible sub-tube configuration and the choice of core reinforcement material make the optical cable suitable for different application scenarios and needs. By replacing the traditional single-fiber tight-buffered design with sub-tubes, the overall outer diameter of the optical cable is reduced by more than 50%, and the space occupied is reduced by more than 75%, saving cabling space. It is also suitable for narrow channel scenarios such as old house renovation. The overall size is more space-saving than traditional optical cables. It is flexible and easy to use. The flexible sub-tube configuration and the choice of core reinforcement material make the optical cable suitable for different application scenarios and needs. In particular, when using metal reinforcement, the overall physical and mechanical properties of the product can be greatly improved.

[0014] Based on the aforementioned beneficial effects, this utility model incorporates water-blocking glass yarn and a first water-blocking yarn. The water-blocking glass yarn, composed of glass fiber and water-blocking material, has a water absorption expansion rate of 310% and a tensile strength of 349.115N. It effectively provides water blocking and mechanical support, while the hardness of the glass fiber effectively prevents rodent bites. Simultaneously, it expands upon contact with water to form a water-blocking barrier, preventing moisture penetration and adapting to humid environments. The composite structure of glass fiber and water-blocking material gives the water-blocking glass yarn not only good mechanical properties but also excellent water-blocking performance, improving the overall performance of the optical cable. It effectively prevents moisture penetration and protects the transmission performance of the colored optical fiber. The tear cord facilitates the stripping and maintenance of the optical cable by construction personnel. The entire optical cable has a compact and reasonable structural design, with each part working together to achieve the optical cable's high core count, small size, flexibility, rodent resistance, and water blocking properties, meeting various needs of indoor cabling. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a novel multi-bundle tube type high-core-count miniature indoor wiring optical cable;

[0016] Figure 2 This is a schematic diagram of the sub-tube group connection of a novel multi-bundle tube-type high-core-count micro indoor wiring optical cable.

[0017] Figure 3 This is a schematic diagram of the colored optical fiber front connection of a novel multi-bundle tube type high-core-count miniature indoor wiring optical cable.

[0018] In the diagram: 1. Core reinforcement; 2. Sub-tube; 3. First aramid reinforcement; 4. Colored optical fiber; 5. First water-blocking yarn; 6. Second aramid reinforcement; 7. Second water-blocking yarn; 8. Covering tape; 9. Tear cord; 10. Water-blocking glass yarn; 11. Outer sheath. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Please see Figures 1-3 As shown, this utility model provides a technical solution: a novel multi-bundle tube type large core count micro indoor wiring optical cable, including a core reinforcement member 1, a sub-tube 2 fixedly connected to the outside of the core reinforcement member 1, a first aramid reinforcement member 3 provided in the inner cavity of the sub-tube 2, a colored optical fiber 4 contained in the inner cavity of the sub-tube 2, a first water-blocking yarn 5 provided in the inner cavity of the sub-tube 2, and the first water-blocking yarn 5 and the first aramid reinforcement member 3 interwoven and connected around the colored optical fiber 4, a filling group fixedly connected to the outside of the core reinforcement member 1, the filling group including a second aramid reinforcement member 6 and a second water-blocking yarn 7, the second aramid reinforcement member 6 and the second water-blocking yarn 7 interwoven and connected, a wrapping tape 8 fixedly connected to the outside of the sub-tube 2 and the filling group, a tear cord 9 fixedly connected to the outside of the wrapping tape 8, a water-blocking glass yarn 10 fixedly connected to the outside of the wrapping tape 8, and an outer sheath 11 fixedly connected to the outside of the water-blocking glass yarn 10.

[0021] The core reinforcement 1 provides basic structural support and tensile strength for the optical cable, ensuring that it will not easily deform or break during laying and use. Secondly, the sub-tube 2 directly protects the colored optical fiber 4, preventing it from being damaged or worn by external mechanical forces. Then, the first aramid reinforcement 3 and the first water-blocking yarn 5 not only provide additional tensile strength and buffer protection for the colored optical fiber 4, but also prevent moisture from entering the sub-tube 2 and damaging the optical fiber. The presence of the filler group fills the space outside the core reinforcement 1, making the structure of the optical cable more compact. Meanwhile, the second aramid reinforcement 6 and the second water-blocking yarn 7 also play a role in strengthening and blocking water. Furthermore, the wrapping tape 8 fixes the sub-tube 2 and the filling group together to form a whole, which improves the structural stability of the optical cable. The tear rope 9 facilitates the stripping of the outer sheath 11 by construction personnel when laying the optical cable, which improves the construction efficiency. The combination of the outermost water-blocking glass yarn 10 and the outer sheath 11 not only further enhances the water-blocking performance of the optical cable, but also prevents rodents and other organisms from biting the optical cable. At the same time, the outer sheath 11 can also play a protective role in pressure resistance and abrasion resistance.

[0022] As one implementation method in this embodiment, please refer to Figures 1-3As shown, the sub-tube 2 is fixedly connected to the inner cavity of the wrapping tape 8. The inner cavity of the sub-tube 2 can accommodate twelve colored optical fibers 4, and the inner cavity of the wrapping tape 8 can accommodate three sets of sub-tubes 2 and one filler set or four sets of sub-tubes 2.

[0023] By replacing the traditional single-fiber tight-buffered design with sub-tube 2, the overall outer diameter of the optical cable is reduced by more than 50%, and the space occupied is reduced by more than 75%. This makes it suitable for narrow channel scenarios such as renovation of old buildings. Furthermore, the sub-tube 2 is fixedly connected to the inner cavity of the wrapping tape 8, ensuring the stability of the sub-tube 2 in the optical cable and preventing it from easily moving or shifting. This ensures that the position of the colored fiber 4 is relatively fixed, which is beneficial to the transmission performance of the optical fiber. Each sub-tube 2 can accommodate twelve colored fiber 4 cores, allowing the optical cable to accommodate a larger number of fiber cores in a smaller size, meeting the needs of high-core-count cabling. The inner cavity of the wrapping tape 8 can accommodate three sets of sub-tube 2 and one filler set or four sets of sub-tube 2. This flexible configuration can select the appropriate number of sub-tube 2 according to different usage scenarios and needs, improving the applicability of the optical cable.

[0024] As one implementation method in this embodiment, please refer to Figure 3 As shown, the core reinforcement 1 is located at the center of the wrapping tape 8, and the sub-tubes 2 are arranged in layers around the core reinforcement 1 as the axis, and are fixedly wrapped by the wrapping tape 8 and the outer sheath 11 to form a layered structure.

[0025] The core reinforcement 1 is located at the center of the wrapping tape 8, making the structure of the optical cable more symmetrical and the force more uniform, thereby improving the tensile strength and bending resistance of the optical cable. The sub-tubes 2 are arranged in layers with the core reinforcement 1 as the axis. This arrangement can ensure that when the optical cable is subjected to external tension or bending, the force can be evenly distributed to each sub-tube 2, reducing the possibility of a sub-tube 2 being damaged due to excessive force.

[0026] As one implementation method in this embodiment, please refer to Figure 3 As shown, the sub-tube 2 is filled with a combination structure of a first aramid reinforcement 3 and a first water-blocking yarn 5. The first aramid reinforcement 3 is used to provide radial tensile strength and buffer protection for the colored optical fiber 4. The first water-blocking yarn 5 forms a water-blocking barrier in the sub-tube 2. The first aramid reinforcement 3 and the first water-blocking yarn 5 are spirally wound around the outer surface of the colored optical fiber 4.

[0027] The first aramid reinforcement 3 has high radial tensile strength, which can effectively provide radial support and protection for the colored optical fiber 4, preventing the colored optical fiber 4 from deforming or breaking under external pressure. The water barrier formed by the first water-blocking yarn 5 can prevent water from entering the interior of the sub-tube 2, protecting the transmission performance of the colored optical fiber 4 and avoiding problems such as increased fiber attenuation caused by moisture. Furthermore, the spiral winding method allows the first aramid reinforcement 3 and the first water-blocking yarn 5 to be tightly attached to the outer surface of the colored optical fiber 4, improving the protection effect and water-blocking performance.

[0028] As one implementation method in this embodiment, please refer to Figures 1-3 As shown, the core reinforcement 1 is made of metal or non-metal material.

[0029] The metal core reinforcement 1 can provide high tensile strength and rigidity, and is suitable for scenarios with high tensile requirements, such as vertical cabling. The non-metallic core reinforcement 1 can meet the requirements of the all-dielectric structure and has the advantages of electromagnetic interference resistance and light weight. It is suitable for some scenarios that are sensitive to electromagnetic interference or require lighter weight. The choice of metal or non-metal materials can be flexibly made according to the tensile requirements of scenarios such as vertical cabling.

[0030] As one implementation method in this embodiment, please refer to Figures 2-3 As shown, the water-blocking glass yarn 10 is composed of glass fiber and water-blocking material.

[0031] Water-blocking glass yarn 10 is composed of glass fiber and water-blocking material. Its water absorption expansion rate reaches 310% and its tensile strength is 349.115N. It can effectively play the functions of water blocking and mechanical support. The hardness of glass fiber can also effectively prevent rodent bites. At the same time, it expands when it comes into contact with water to form a water-blocking barrier, preventing water penetration and adapting to humid environments. The composite composition of glass fiber and water-blocking material makes water-blocking glass yarn 10 not only have good mechanical properties, but also excellent water blocking performance, improving the overall performance of optical cable.

[0032] Working principle: The core reinforcement 1 serves as the core support. The sub-tube 2, along with the internal first aramid reinforcement 3 and first water-blocking yarn 5, directly protect the colored optical fiber 4. The filling group, wrapping tape 8, water-blocking glass yarn 10, and outer sheath 11 enhance the overall strength, water-blocking performance, and resistance to external interference of the optical cable. The layered structure design gives the optical cable good flexibility and torsion resistance, facilitating construction and laying. Furthermore, the flexible configuration of the sub-tube 2 and the selection of the core reinforcement 1 material allow the optical cable to be suitable for different application scenarios and needs. Replacing the traditional single-fiber tight-buffered design, the overall outer diameter of the optical cable is reduced by more than 50%, and the space occupied is reduced by more than 75%. It is suitable for narrow channel scenarios such as old house renovation. The setting of water-blocking glass yarn 10 and first water-blocking yarn 5 effectively prevents water penetration and protects the transmission performance of colored optical fiber 4. The setting of tear rope 9 facilitates the stripping and maintenance of optical cable by construction personnel. The entire optical cable has a compact and reasonable structural design, and the various parts of the structure cooperate with each other to achieve the optical cable's high core count, small size, flexibility, rodent resistance, water resistance and other properties, meeting various indoor wiring needs.

[0033] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A novel multi-tube, high-fiber count, micro indoor premises distribution cable characterized by: The device includes a core reinforcement member (1), a sub-tube (2) fixedly connected to the outside of the core reinforcement member (1), a first aramid reinforcement member (3) provided in the inner cavity of the sub-tube (2), a colored optical fiber (4) fixedly connected to the inner cavity of the sub-tube (2), a first water-blocking yarn (5) provided in the inner cavity of the sub-tube (2), and the first water-blocking yarn (5) and the first aramid reinforcement member (3) filling the area around the colored optical fiber (4). A filling group is fixedly connected to the outside of the core reinforcement member (1), the filling group including a second aramid reinforcement member (6) and a second water-blocking yarn (7), the second aramid reinforcement member (6) and the second water-blocking yarn (7) being interwoven. A wrapping tape (8) is fixedly connected to the outside of the sub-tube (2) and the filling group. A tear cord (9) is fixedly connected to the outside of the wrapping tape (8). A water-blocking glass yarn (10) is fixedly connected to the outside of the wrapping tape (8), and an outer sheath (11) is fixedly connected to the outside of the water-blocking glass yarn (10).

2. A novel multi-tube large core count micro indoor wiring optical cable according to claim 1, characterized in that: The sub-tube (2) is fixedly connected to the inner cavity of the wrapping tape (8). The inner cavity of the sub-tube (2) can accommodate up to twelve colored optical fibers (4). The inner cavity of the wrapping tape (8) can hold at least three sets of the sub-tubes (2) and one set of filling, and can accommodate up to four sets of the sub-tubes (2).

3. A novel multi-tube large core count micro indoor wiring optical cable according to claim 1, characterized in that: The core reinforcement (1) is located at the center of the wrapping tape (8). The sub-tubes (2) are arranged in layers with the core reinforcement (1) as the axis and are fixedly wrapped by the wrapping tape (8) and the outer sheath (11) to form a layered structure.

4. A novel multi-tube large core count micro indoor wiring optical cable according to claim 2, characterized in that: The sub-tube (2) is filled with a combination of a first aramid reinforcement (3) and a first water-blocking yarn (5). The first aramid reinforcement (3) is used to provide radial tensile strength and buffer protection for the colored optical fiber (4). The first water-blocking yarn (5) forms a water-blocking barrier in the sub-tube (2). The first aramid reinforcement (3) and the first water-blocking yarn (5) are distributed around the colored optical fiber (4) in a parallel filling manner.

5. A novel multi-tube large fiber count micro indoor wiring optical cable according to claim 3, characterized in that: The core reinforcement (1) is made of metal, a mixture of metal and non-metal, or a non-metal.

6. A novel multi-tube large fiber count microduct premises wiring cable according to claim 4, characterized by: The water-blocking glass yarn (10) is composed of glass fiber and water-blocking material to replace the commonly used aramid material.

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