Ultra-low-loss high-density optical cable with butterfly-shaped units

Abstract

The invention provides an ultralow-loss high-density optical cable with butterfly-shaped units, and relates to the technical field of optical cables. A core hole is formed in the middle of the butterfly-shaped reinforcing piece, a protective sleeve is arranged in the core hole, an optical cable core is installed in the protective sleeve, reinforcing rods are arranged on the two sides of the optical cable core, and the reinforcing rods are installed at the two ends of the butterfly-shaped reinforcing piece; by adopting the structural design that the butterfly-shaped units are closely arranged, more fiber cores than a traditional optical cable can be accommodated under the same outer diameter size, so that the transmission capacity of the optical cable is improved, the space required for wiring is reduced, and meanwhile, effective aggregation constraint can be formed on adjacent butterfly-shaped reinforcing pieces under the arrangement of the tensioning rods and the insertion slot holes, so that the service life of the optical cable is prolonged. Therefore, the butterfly-shaped reinforcements can be ensured to be close to each other, the compactness of the whole structure is improved, and the situation of looseness and dislocation caused by overhigh distribution density of the butterfly-shaped reinforcements can be avoided, so that the stability and reasonability of the layout of the butterfly-shaped reinforcements are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical cable, in particular to an ultra-low-loss high-density optical cable with butterfly unit. BACKGROUND

[0002] With the rapid development of communication technology, the performance requirements of optical cable are constantly rising. In today's information age, data traffic is showing an explosive growth trend, and various information transmission demands are increasing. Whether it is the large-scale construction of 5G communication network, the massive lines laid for the realization of high-speed and wide-coverage communication services, or the continuous expansion of data centers to cope with the growing data storage and processing tasks, optical cables are urgently needed to have higher transmission capacity to carry more information data, lower signal loss to ensure information stability and clarity in long-distance transmission, and more compact structure to adapt to complex and diverse laying environments and save space resources. However, when dealing with these high-performance requirements, the inherent defects of traditional optical cables are gradually highlighted, revealing many limitations. The core density of traditional optical cable is at a low level, which makes it difficult to efficiently integrate a large number of optical fibers in a limited space. This directly leads to the fact that in space-limited application scenarios such as indoor comprehensive wiring and narrow pipeline laying, the actual demand for continuous expansion of communication lines cannot be met, greatly restricting the expansion and upgrading of communication networks in these scenarios, and making it difficult to adapt to the urgent demand for high-density optical fiber integration of modern communication technology. SUMMARY

[0003] Therefore, the present application provides an ultra-low loss high-density optical cable with a butterfly unit, which can accommodate more fiber cores than traditional optical cables under the same outer diameter size by adopting a structure design of closely arranged butterfly units, thereby improving the transmission capacity of the optical cable and reducing the space required for wiring.

[0004] The present application provides an ultra-low loss high-density optical cable with a butterfly unit, which specifically comprises: a butterfly reinforcing member. The butterfly reinforcing member is provided with a core hole in the middle, the inside of the core hole is provided with a protective sleeve, the inside of the protective sleeve is provided with an optical cable core, the two sides of the optical cable core are provided with reinforcing rods, and the reinforcing rods are installed at both ends of the butterfly reinforcing member. The butterfly reinforcing member is horizontally arranged, and the middle of the upper and lower ends of the butterfly reinforcing member is provided with a fitting groove, two groups of vertical butterfly reinforcing members are closely fitted in the fitting groove, two groups of horizontal butterfly reinforcing members are further provided on the both sides of the fitting groove of the two groups of vertical butterfly reinforcing members, and another two groups of vertical butterfly reinforcing members are further vertically provided between the two groups of horizontal butterfly reinforcing members, and one end of the fitting groove on one side of the additionally provided butterfly reinforcing member is closely fitted with the two ends of the middle butterfly reinforcing member. The butterfly reinforcing member is provided with nine groups, and the nine groups of butterfly reinforcing members are provided with a missing slot, the missing slot is provided with an insertion slot hole on the adjacent butterfly reinforcing member, the missing slot is provided with an insertion block, the four edges of the insertion block are fixedly connected with a connecting protrusion, the end of the connecting protrusion is fixedly connected with a tension rod, and the tension rod is inserted into the insertion slot hole.

[0005] Further, the protective sleeve is made of polyvinyl chloride, and the reinforcing rod is made of aramid fiber.

[0006] Further, the outer side of the butterfly-shaped reinforcing member is provided with a water-blocking layer, the inside of the water-blocking layer is filled with a waterproof filler, and the waterproof filler is provided with an opening cable.

[0007] Further, the waterproof filler is petroleum paste, and the water-blocking layer is made of non-woven fabric impregnated with a water-blocking agent.

[0008] Further, the outer side of the water-blocking layer is provided with a buffer layer, the inside of the buffer layer is provided with a fitting groove, and the inside of the fitting groove is provided with a reinforcing rib.

[0009] Further, the buffer layer is usually made of polyethylene foam or rubber, and the reinforcing rib is made of high-strength fiber material or metal wire.

[0010] Further, the outer side of the buffer layer is provided with a moisture-proof layer, the moisture-proof layer is an aluminum-plastic composite tape, the aluminum-plastic composite tape is usually composed of an aluminum foil and a plastic film, the outer side of the moisture-proof layer is provided with an armor layer, the armor layer is made of a steel belt, and the outer side of the armor layer is pressed with a rhombic pattern.

[0011] Further, the outer side of the armor layer is provided with an outer sheath, the inner side wall of the outer sheath is provided with a rhombic groove that increases friction with the rhombic pattern, the outer side of the outer sheath is annularly arrayed with a connecting convex strip, and the connecting convex strip is fixedly connected with an anti-skid convex ball.

[0012] Further, the outer sheath is made of polyethylene (PE) or polyvinyl chloride (PVC).

[0013] The butterfly unit has the following advantages 1. By adopting the structure design of the butterfly unit arranged closely, more fiber cores than traditional optical cables can be accommodated under the same outer diameter size, the transmission capacity of the optical cable is improved, the space required for wiring is reduced, and the adjacent butterfly-shaped reinforcing members can be effectively aggregated and constrained under the setting of the tensioning rod and the plug-in slot hole, so that the stability and rationality of the layout of the butterfly-shaped reinforcing members are ensured.

[0014] 2. The material selection and structure design of the reinforcing rod and the protective sleeve in the butterfly unit give the optical cable excellent bending resistance, compression resistance and tensile resistance. This makes the optical cable better adapt to various complex environmental conditions during laying and use, reduces the damage risk caused by external force, and improves the reliability and service life of the optical cable.

[0015] 3、By setting reinforcing ribs inside the buffer layer, it can further improve the tensile and bending resistance of the buffer layer, and enhance the overall structural stability of the optical cable. By performing pattern treatment on the surface of the steel belt, it can increase the friction between the armor layer and the outer sheath, prevent the outer sheath from sliding on the surface of the armor layer, and improve the integrity of the optical cable structure. By setting protrusions and convex balls on the surface of the outer sheath, it not only can increase the friction between the optical cable and the laying environment, prevent the optical cable from sliding during laying, facilitate the fixation and installation of the optical cable. At the same time, it can also improve the bending resistance of the outer sheath and reduce the stress on the outer sheath when the optical cable is bent. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0017] The drawings described in the following description only relate to some embodiments of the present application, and are not a limitation of the present application.

[0018] In the drawings: Figure 1 The schematic diagram of the optical cable disassembled structure according to the present application is shown; Figure 2 The schematic diagram of the overall combined structure according to the present application is shown; Figure 3 The schematic diagram of the butterfly-shaped reinforcing member and waterproof filler structure according to the present application is shown; Figure 4 The schematic diagram of the Figure 3 The enlarged structure schematic diagram of A in the middle is shown; Figure 5 The schematic diagram of the butterfly-shaped reinforcing member and the split structure of the insertion block according to the present application is shown; Figure 6 The schematic diagram of the internal structure of the buffer layer after being cut open according to the present application is shown; Figure 7 The schematic diagram of the armor layer structure according to the present application is shown; Figure 8 The schematic diagram of the outer sheath structure according to the present application is shown; LIST OF REFERENCE NUMERALS 1、Butterfly-shaped reinforcing member; 101、Core hole; 1011、Protective sleeve; 1012、Optical cable core; 1013、Reinforcing rod; 102、Laminating groove; 103、Missing slot; 1031、Insertion slot hole; 104、Insertion block; 1041、Connecting protrusion; 1042、Tension rod; 2、Waterproof filler; 201、Cable opening rope; 3, water barrier layer; 4, buffer layer; 401, embedded groove; 4011, reinforcing rib; 5, moisture-proof layer; 6, armored layer; 601, diamond pattern; 7, outer sheath; 701, diamond groove; 702, connecting convex strip; 7021, anti-skid convex ball. DETAILED DESCRIPTION

[0019] Example one: please refer to Figures 1 to 8 : The application provides an ultra-low-loss high-density optical cable with a butterfly-shaped unit, comprising: a butterfly-shaped reinforcing member 1; A core hole 101 is arranged at the middle of the butterfly-shaped reinforcing member 1, a protective sleeve 1011 is arranged in the core hole 101, an optical cable core 1012 is arranged in the protective sleeve 1011, reinforcing rods 1013 are arranged at the two sides of the optical cable core 1012, and the reinforcing rods 1013 are arranged at the two ends of the butterfly-shaped reinforcing member 1; The butterfly-shaped reinforcing member 1 is arranged in a transverse direction, a fitting groove 102 is arranged at the middle of the upper end and the lower end of the butterfly-shaped reinforcing member 1, two groups of vertical butterfly-shaped reinforcing members 1 are tightly arranged in the fitting groove 102, two groups of transverse butterfly-shaped reinforcing members 1 are arranged at the two sides of the fitting groove 102 of the two groups of vertical butterfly-shaped reinforcing members 1, and another two groups of vertical butterfly-shaped reinforcing members 1 are arranged vertically between the two groups of transverse butterfly-shaped reinforcing members 1, and one end of the butterfly-shaped reinforcing member 1 arranged on one side of the fitting groove 102 is tightly arranged with the two ends of the butterfly-shaped reinforcing member 1 arranged in the middle; The butterfly-shaped reinforcing member 1 is arranged in a transverse direction, a fitting groove 102 is arranged at the middle of the upper end and the lower end of the butterfly-shaped reinforcing member 1, two groups of vertical butterfly-shaped reinforcing members 1 are tightly arranged in the fitting groove 102, two groups of transverse butterfly-shaped reinforcing members 1 are arranged at the two sides of the fitting groove 102 of the two groups of vertical butterfly-shaped reinforcing members 1, and another two groups of vertical butterfly-shaped reinforcing members 1 are arranged vertically between the two groups of transverse butterfly-shaped reinforcing members 1, and one end of the butterfly-shaped reinforcing member 1 arranged on one side of the fitting groove 102 is tightly arranged with the two ends of the butterfly-shaped reinforcing member 1 arranged in the middle;

[0020] The protective sleeve 1011 is made of polyvinyl chloride, and the reinforcing rod 1013 is made of aramid fiber.

[0021] By adopting the structure design that the butterfly-shaped units are closely arranged, the optical cable can accommodate more fiber cores than the traditional optical cable under the same outer diameter size, the protective sleeve 1011 in the butterfly-shaped reinforcing member 1 is made of polyvinyl chloride (PVC) material, has good flexibility and insulation performance, and can effectively protect the internal optical cable core 1012 and the reinforcing rod 1013, the reinforcing rod 1013 is made of aramid fiber, and the high strength and light weight characteristics of the reinforcing rod 1013 can provide sufficient mechanical support for the butterfly-shaped reinforcing member 1, the adjacent butterfly-shaped reinforcing members 1 are effectively aggregated by the cooperative arrangement of the tension rod 1042 and the plug-in slot hole 1031, the close arrangement of the butterfly-shaped reinforcing members 1 is ensured, the compactness of the overall structure is improved, and the situation that the butterfly-shaped reinforcing members 1 are loose and misaligned due to the high distribution density of the butterfly-shaped reinforcing members 1 is avoided, so that the stability and rationality of the layout of the butterfly-shaped reinforcing members 1 are ensured.

[0022] In the embodiment two, as shown in Figure 1 and Figure 2 , the outer side of the butterfly-shaped reinforcing member 1 is provided with a water-blocking layer 3, the inside of the water-blocking layer 3 is filled with a waterproof filler 2, and the waterproof filler 2 is provided with a cable opening rope 201.

[0023] The waterproof filler 2 is petroleum paste, and the water-blocking layer 3 is made of non-woven fabric impregnated with a water-blocking agent.

[0024] The waterproof filler 2 mainly plays a role in the gap between the optical cable core 1012 and the water-blocking layer 3, prevents water from invading from the gap of the optical cable core 1012, and further enhances the waterproof effect of the water-blocking layer 3.

[0025] In the embodiment three, as shown in Figures 6 to 8 , the outer side of the water-blocking layer 3 is provided with a buffer layer 4, the inside of the buffer layer 4 is provided with an embedded groove 401, and the embedded groove 401 is provided with a reinforcing rib 4011.

[0026] The buffer layer 4 is usually made of polyethylene foam or rubber, and the reinforcing rib 4011 is made of high-strength fiber material or metal wire.

[0027] The outer side of the buffer layer 4 is provided with a moisture-proof layer 5, the moisture-proof layer 5 is an aluminum-plastic composite tape, the outer side of the moisture-proof layer 5 is provided with an armor layer 6, the armor layer 6 is made of steel tape, and the outer side of the armor layer 6 is pressed with a rhombic pattern 601.

[0028] The outer side of the armor layer 6 is provided with an outer sheath 7, the inner side wall of the outer sheath 7 is provided with a rhombic groove 701 that increases friction with the rhombic pattern 601, the outer side of the outer sheath 7 is annularly arranged with a connecting convex strip 702, and the connecting convex strip 702 is fixedly connected with an anti-skid convex ball 7021.

[0029] The outer sheath 7 is made of polyethylene (PE) or polyvinyl chloride (PVC).

[0030] The main function of the buffer layer 4 is to absorb external impact force and vibration, reduce the impact on the cable core, avoid the breakage or performance degradation of the cable core caused by external impact, and further improve the tensile and bending resistance of the buffer layer 4 through the arrangement of the reinforcing rib 4011. The core function of the moisture-proof layer 5 is to prevent the invasion of external moisture. The armored layer 6 can resist external mechanical impact force, pressure and tension, etc., and protect the internal optical cable core 1012 from damage, so as to ensure the structural stability and reliable performance of the optical cable in complex laying and using environment. Through the cooperation of the diamond pattern 601 and the diamond groove 701, the friction between the armored layer 6 and the outer sheath 7 can be increased, the outer sheath 7 can be prevented from sliding on the surface of the armored layer 6, the integrity of the optical cable structure can be improved, the connecting convex strip 702 can improve the bending resistance of the outer sheath 7 and reduce the stress on the outer sheath when the optical cable is bent, and the anti-skid convex ball 7021 can mainly increase the friction between the outer sheath 7 and the external environment to avoid movement.

[0031] The specific use and effect of the embodiment are as follows: in the present application, the optical cable core 1012 is sleeved with the protective sleeve 1011, then the optical cable core 1012 and the reinforcing rod 1013 are assembled into the butterfly-shaped reinforcing member 1 to form a complete butterfly-shaped unit, 9 groups of butterfly-shaped reinforcing members 1 are assembled together according to the designed arrangement mode, then the plug-in block 104 is embedded in the missing groove 103 between the butterfly-shaped reinforcing members 1 to form effective aggregation constraint, which not only ensures that the butterfly-shaped reinforcing members 1 can be closely close to each other to improve the compactness of the overall structure, but also avoids the loose misalignment caused by the high distribution density of the butterfly-shaped reinforcing members 1, so as to ensure the stability and rationality of the layout of the butterfly-shaped reinforcing members 1, then the water-blocking layer 3 is arranged outside, then the waterproof filler 2 is filled between the water-blocking layer 3 and the combined cable core, the polyethylene foam material is extruded outside the water-blocking layer 4 to form the buffer layer 4, and the reinforcing rib 4011 is embedded in the buffer layer 4 at the same time to improve the tensile and bending resistance of the buffer layer 4, the moisture-proof layer 5 is laid outside the buffer layer 4, then the steel belt treated with pattern is wrapped outside the moisture-proof layer 5 to form the armored layer 6, finally, the outer sheath 7 is installed outside the armored layer 6, and the preparation of the optical cable is finally completed. The optical cable can accommodate more fiber cores than the traditional optical cable under the same outer diameter size through the structure design of the closely arranged butterfly-shaped unit, which not only improves the transmission capacity of the optical cable, but also reduces the space required for wiring.

Claims

1. An ultra-low loss high-density optical cable with butterfly-shaped units, characterized in that: Specifically include: Butterfly reinforcement (1); The butterfly-shaped reinforcement member (1) is provided with a core hole (101) in the middle thereof, a protective sleeve (1011) is provided inside the core hole (101), an optical cable core (1012) is installed inside the protective sleeve (1011), reinforcement rods (1013) are provided on both sides of the optical cable core (1012), and the reinforcement rods (1013) are installed at both ends of the butterfly-shaped reinforcement member (1); The butterfly reinforcement (1) is arranged horizontally, and a fitting groove (102) is provided in the middle of the upper and lower ends of the butterfly reinforcement (1). Two groups of vertical butterfly reinforcements (1) are tightly fitted at the fitting groove (102). Two groups of horizontal butterfly reinforcements (1) are provided at the fitting grooves (102) on both sides of the two groups of vertical butterfly reinforcements (1). At the same time, another two groups of vertical butterfly reinforcements (1) are vertically provided between the two groups of horizontal butterfly reinforcements (1). One end fitting groove (102) of one side of the additional butterfly reinforcement (1) is tightly fitted with the two ends of the middle butterfly reinforcement (1). The butterfly-shaped reinforcement members (1) are provided with nine groups in total, and a notch (103) is provided between the nine groups of butterfly-shaped reinforcement members (1). An insertion slot (1031) is provided on the butterfly-shaped reinforcement members (1) adjacent to the notch (103). An insertion block (104) is fitted and embedded in the notch (103). Connecting protrusions (1041) are fixedly connected to the four sides of the insertion block (104). A tension rod (1042) is fixedly connected to the end of the connecting protrusion (1041). The tension rod (1042) is fitted and inserted in the insertion slot (1031).

2. The ultra-low loss, high-density optical cable with butterfly-shaped units according to claim 1, characterized in that: The protective sleeve (1011) is made of polyvinyl chloride, and the reinforcing rod (1013) is made of aramid fiber.

3. The ultra-low loss, high-density optical cable with butterfly-shaped units according to claim 1, characterized in that: The outer side of the butterfly-shaped reinforcement (1) is provided with a water-blocking layer (3), the interior of the water-blocking layer (3) is filled with a waterproof filler (2), and an open cable (201) is provided in the waterproof filler (2).

4. The ultra-low loss high-density optical cable with butterfly-shaped units according to claim 3, characterized in that: The waterproof filler (2) is petroleum jelly, and the water-blocking layer (3) is made of non-woven fabric impregnated with a water-blocking agent.

5. The ultra-low loss high-density optical cable with butterfly-shaped units according to claim 3, characterized in that: A buffer layer (4) is provided on the outside of the water-blocking layer (3), an interlocking groove (401) is provided inside the buffer layer (4), and a reinforcing rib (4011) is installed inside the interlocking groove (401).

6. The ultra-low loss high-density optical cable with butterfly-shaped units according to claim 5, characterized in that: The buffer layer (4) is usually made of polyethylene foam or rubber, and its reinforcing ribs (4011) are made of high-strength fiber material or metal wire.

7. The ultra-low loss high-density optical cable with butterfly-shaped units according to claim 5, characterized in that: A moisture-proof layer (5) is provided on the outside of the buffer layer (4), and the moisture-proof layer (5) is an aluminum-plastic composite tape, which is usually composed of aluminum foil and plastic film. An armor layer (6) is provided on the outside of the moisture-proof layer (5), and the armor layer (6) is made of a steel tape, and a diamond pattern (601) is pressed on the outside of the armor layer (6).

8. The ultra-low loss high-density optical cable with butterfly-shaped units according to claim 7, characterized in that: An outer sheath (7) is provided on the outer side of the armor layer (6); an inner side wall of the outer sheath (7) is provided with a diamond groove (701) for increasing friction with the diamond pattern (601); an outer annular array of the outer sheath (7) has connecting convex strips (702); and anti-slip convex balls (7021) are fixedly connected to the connecting convex strips (702).

9. The ultra-low loss high-density optical cable with butterfly-shaped units according to claim 8, characterized in that: The outer sheath (7) is made of polyethylene (PE) or polyvinyl chloride (PVC).

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