Flexible rodent and termite resistant optical cable

Abstract

The utility model discloses a kind of flexible rat-proof and termite-proof optical cable, including nylon outer sheath, aramid fiber braided layer, water-blocking glass yarn layer and cable core arranged from outside to inside in order, cable core includes several GFRP rods, optical fiber and water-blocking yarn, GFRP rod is wound with aramid yarn.The flexible rat-proof and termite-proof optical cable provided by the utility model, four GFRP rods are twisted together to form square structure, not parallel placement, allow each rod in inside to occur tiny relative displacement and slide when optical cable is bent, to disperse and absorb huge bending stress, so that whole optical cable can bend smoothly, improve the flexibility of optical cable;Water-blocking glass yarn can not only water-blocking, but also produce tingling to mouse mouth when being bitten by mouse, prevent mouse bite, nylon outer sheath can effectively play ant termite effect;Optical cable is non-metal material, can play lightning protection effect, and more light and soft than conventional steel wire armoured rat-proof cable.

Description

Technical Field

[0001] This utility model belongs to the field of optical cable technology, specifically relating to a flexible rodent-proof and ant-proof optical cable. Background Technology

[0002] Currently, most rodent- and termite-proof optical cables use steel wire armor and add rodent- and termite-repellent chemicals. However, steel wire armor has poor bending resistance, is too heavy, and has low construction efficiency. Over time, the rodent- and termite-repellent chemicals will gradually lose their effectiveness and cause some damage to the environment.

[0003] Based on this, the present invention discloses a flexible rodent-proof and ant-proof optical cable. Utility Model Content

[0004] To address the problems in the existing technology, the purpose of this utility model is to provide a flexible rodent-proof and ant-proof optical cable.

[0005] To achieve the above objectives and technical effects, the technical solution adopted by this utility model is as follows: A flexible rodent- and ant-proof optical cable includes, from the outside to the inside, a nylon outer sheath, an aramid fiber braided layer, a water-blocking glass yarn layer, and a cable core. The cable core includes several GFRP rods, optical fibers, and water-blocking yarn, with aramid yarn wound around the GFRP rods.

[0006] Furthermore, the cable core includes four twisted GFRP rods, with an optical fiber and water-blocking yarn disposed at the center of the four twisted GFRP rods.

[0007] Furthermore, the thickness of the nylon outer sheath is 0.3-1mm.

[0008] Furthermore, the weaving density of the aramid fiber braided layer is 70-90%.

[0009] Furthermore, the optical fiber is of type G652D or G657A2.

[0010] Furthermore, the water-blocking yarn is a water-blocking glass yarn, in which some fibers extend and are embedded in the mesh of the aramid fiber braided layer.

[0011] Furthermore, the aramid yarn is of type dtex6320 or dtex3160.

[0012] Furthermore, the diameter of the GFRP rod is 0.8-1.5 mm.

[0013] Furthermore, a TPU plastic layer is provided on the outer surface of the GFRP rod.

[0014] Furthermore, the thickness of the TPU plastic layer is 0.05-0.2 mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a flexible rodent-proof and ant-proof optical cable. Four GFRP rods are twisted together to form a square structure, rather than being placed parallel to each other. This allows the internal rods to undergo slight relative displacement and sliding when the optical cable is bent, thereby dispersing and absorbing the huge bending stress, enabling the entire optical cable to bend smoothly and improving its flexibility. The water-blocking glass yarn can not only block water, but also sting the mouths of rodents when they bite, thus preventing them from biting. The nylon outer sheath can effectively prevent ants. The optical cable is made entirely of non-metallic materials, which can provide lightning protection, and it is lighter and more flexible than conventional steel wire armored rodent-proof cables. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0017] The present invention will now be described in detail so that its advantages and features can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0018] The following provides a brief overview of one or more aspects to offer a basic understanding of them. This overview is not an exhaustive summary of all conceived aspects, nor is it intended to identify key or decisive elements of all aspects, nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form to prepare for the more detailed descriptions that follow.

[0019] like Figure 1 As shown, this utility model discloses a flexible rodent-proof and ant-proof optical cable, comprising a nylon outer sheath 1, an aramid fiber braided layer 2, a water-blocking glass yarn layer 3, and a cable core arranged sequentially from the outside to the inside. The cable core includes several stranded GFRP (glass fiber reinforced plastic) rods 4, with an optical fiber 5 and water-blocking yarn 6 arranged at the center of each stranded GFRP rod 4. Flexible aramid yarn 7 is evenly spirally wound on each GFRP rod 4. The aramid yarn 7 can be of the type dtex6320, dtex3160, etc. When the optical cable is bent, the spirally wound aramid yarn 7 mainly bears the tension. Its spiral structure allows it to naturally adapt to bending along its length direction, and it will not break like a rigid tube. The optical cable has good tensile strength and lateral pressure resistance.

[0020] The nylon outer sheath 1 has a thickness of 0.3-1mm, which can effectively protect against rodent and ant bites and wear during daily installation.

[0021] The aramid fiber braided layer 2 has a braiding density of 70-90% and a thickness of 0.15-0.35mm, which can significantly improve the resistance to lateral pressure and anti-biting ability without excessively increasing the diameter and stiffness of the optical cable.

[0022] The GFRP rod 4 has a diameter of 0.8-1.5mm and excellent bending performance. The four GFRP rods 4 are twisted together to form a square structure, rather than being placed parallel to each other. This allows for slight relative displacement and sliding of the internal rods when the optical cable bends, thereby dispersing and absorbing the huge bending stress. This allows the entire optical cable to bend smoothly instead of rigidly resisting, improving the flexibility of the optical cable.

[0023] According to actual needs, a TPU plastic layer can be uniformly extruded on the outer surface of the GFRP pole 4. The thickness of the TPU plastic layer is 0.05-0.2mm, which enhances the toughness, wear resistance, lateral pressure resistance and rodent bite resistance of the optical cable.

[0024] Fiber optic 5 can be selected from models such as G652D and G657A2 depending on the application scenario.

[0025] Water-blocking yarn 6 is water-blocking glass yarn, with some of its fibers extending and embedded in the mesh of the aramid fiber braided layer 2.

[0026] The optical cable mainly uses GFRP poles 4 to provide tensile strength, lateral pressure and rodent protection. The water-blocking glass mesh layer 3 can not only block water, but also sting the mouth of the rodent when it is bitten, thus preventing the rodent from biting. The nylon outer sheath 1 can effectively prevent ants.

[0027] The optical cables are all made of non-metallic materials, which can protect against lightning strikes, and are lighter and more flexible than conventional steel wire armored rodent-proof cables.

[0028] Example 1 like Figure 1 As shown, a flexible rodent- and ant-proof optical cable includes, from the outside to the inside, a nylon outer sheath 1, an aramid fiber braided layer 2, a water-blocking glass yarn layer 3, and a cable core. The cable core includes four twisted GFRP (glass fiber reinforced plastic) rods 4. An optical fiber 5 and a water-blocking yarn 6 are arranged at the center of the four twisted GFRP rods 4. Flexible aramid yarn 7 is evenly spirally wound on each GFRP rod 4. The aramid yarn 7 is of type dtex6320. When the optical cable is bent, the spirally wound aramid yarn 7 mainly bears the tension. Its spiral structure allows it to naturally adapt to bending along its length direction, and it will not break like a rigid tube. The optical cable has good tensile strength and lateral pressure resistance.

[0029] The nylon outer sheath 1 is 0.5mm thick, which can effectively protect against rodent bites and wear during daily installation.

[0030] The aramid fiber braided layer 2 has a braiding density of 70% and a thickness of 0.15mm, which can significantly improve the resistance to lateral pressure and anti-biting ability without excessively increasing the diameter and stiffness of the optical cable.

[0031] The GFRP rod 4 has a diameter of 0.8mm and excellent bending performance. The four GFRP rods 4 are twisted together to form a square structure, rather than being placed parallel to each other. This allows for slight relative displacement and sliding of the internal rods when the optical cable bends, thereby dispersing and absorbing the huge bending stress. This allows the entire optical cable to bend smoothly instead of rigidly resisting, improving the flexibility of the optical cable.

[0032] According to actual needs, a TPU plastic layer can be uniformly extruded on the outer surface of the GFRP pole 4. The thickness of the TPU plastic layer is 0.05mm, which enhances the toughness, wear resistance, lateral pressure resistance and rodent bite resistance of the optical cable.

[0033] Fiber optic 5 is selected as model G652D based on the usage scenario.

[0034] Water-blocking yarn 6 is water-blocking glass yarn, with some of its fibers extending and embedded in the mesh of the aramid fiber braided layer 2.

[0035] The optical cable mainly uses GFRP poles 4 to provide tensile strength, lateral pressure and rodent protection. The water-blocking glass mesh layer 3 can not only block water, but also sting the mouth of the rodent when it is bitten, thus preventing the rodent from biting. The nylon outer sheath 1 can effectively prevent ants.

[0036] The optical cables are all made of non-metallic materials, which can protect against lightning strikes, and are lighter and more flexible than conventional steel wire armored rodent-proof cables.

[0037] The parts or structures not specifically described in this utility model can be made using existing technology or existing products, and will not be elaborated here.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A flexible rodent- and termite-resistant optical cable, characterized in that, The cable core consists of a nylon outer sheath, an aramid fiber braided layer, a water-blocking glass yarn layer, and a cable core arranged sequentially from the outside to the inside. The cable core includes several GFRP rods, optical fibers, and water-blocking yarn, with aramid yarn wound around the GFRP rods. The cable core includes four twisted GFRP rods, with an optical fiber and water-blocking yarn disposed at the center of the four twisted GFRP rods.

2. A flexible rodent and termite resistant optical cable as claimed in claim 1, wherein, The thickness of the nylon outer sheath is 0.3-1mm.

3. A flexible rodent and termite resistant optical cable as claimed in claim 1, wherein, The braiding density of the aramid fiber braided layer is 70-90%.

4. The flexible rodent- and termite-resistant optical cable of claim 1, wherein, The optical fiber is of type G652D or G657A2.

5. A flexible rodent and termite resistant optical cable as claimed in claim 1, wherein, The water-blocking yarn is a water-blocking glass yarn, in which some fibers extend and are embedded in the mesh of the aramid fiber braided layer.

6. A flexible rodent and termite resistant optical cable as claimed in claim 1, wherein, The aramid yarn is of type dtex6320 or dtex3160.

7. A flexible rodent and termite resistant optical cable as claimed in claim 1, wherein, The diameter of the GFRP rod is 0.8-1.5mm.

8. A flexible rodent- and ant-proof optical cable according to claim 1, characterized in that, The outer surface of the GFRP rod is provided with a TPU plastic layer.

9. A flexible rodent and termite resistant optical cable as claimed in claim 8, wherein, The thickness of the TPU plastic layer is 0.05-0.2 mm.

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