Anti-vibration and anti-icing all-nonmetal 8-shaped optical cable

Abstract

The utility model discloses an anti-vibration and anti-icing all-nonmetal 8-shaped optical cable, belongs to the technical field of optical cables, aims to provide an anti-vibration and anti-icing all-nonmetal 8-shaped optical cable, and solves the problems that the existing optical cable is poor in anti-vibration performance and cannot prevent icing. The optical cable comprises a polyolefin protective layer, the polyolefin protective layer comprises a suspension wire part on the upper side, an optical cable part on the lower side and a suspension belt part connecting the suspension wire part and the optical cable part, a solid G-FRP round rod is arranged in the suspension wire part, a layer-stranded cable core is arranged in the optical cable part, a foam foaming layer is arranged on the inner side of the optical cable part, and the foam foaming layer is arranged on the outer side of the suspension wire part. And a hydrophobic layer is arranged outside the polyolefin protective layer. The hydrophobic layer is one of a polyvinylidene fluoride sheath, a polypropylene sheath and a polytetrafluoroethylene sheath. And the hydrophobic layer is a fluorocarbon coating. The polyolefin protective layer is a polyolefin protective sleeve. The utility model is suitable for the anti-vibration and anti-icing all-nonmetal 8-shaped optical cable.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical cables, and particularly relates to a fully non-metallic figure-eight optical cable with anti-vibration and anti-icing functions. Background Art

[0002] An optical cable is a communication cable assembly manufactured to meet optical, mechanical, or environmental performance specifications. It mainly uses one or more optical fibers placed in a cladding sheath as the transmission medium and can be used alone or in groups. An optical cable mainly consists of optical fibers, a plastic protective sleeve, and a plastic outer skin.

[0003] The figure-eight optical cable is a self-supporting optical cable. As a special optical cable with self-supporting ability and strong adaptability, it is widely used in mountainous and rural communication systems. However, the existing optical cables have poor anti-icing ability. In mountainous and rural areas where the geographical environment is relatively complex, in some cases, excessive icing may cause cable breakage accidents. At the same time, the existing optical cables also have poor anti-vibration performance. When vibration occurs, the optical fibers in the cable core are easily affected by external vibration, and the communication effect cannot be guaranteed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fully non-metallic figure-eight optical cable with anti-vibration and anti-icing functions, and solve the problems of poor anti-vibration performance and inability to prevent icing of the existing optical cables.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A fully non-metallic figure-eight optical cable with anti-vibration and anti-icing functions includes a polyolefin protective layer. The polyolefin protective layer includes a suspension part on the upper side, an optical cable part on the lower side, and a suspension belt part connecting the suspension part and the optical cable part. A solid G-FRP round bar is arranged in the suspension part, a stranded cable core is arranged in the optical cable part, a foam foaming layer is arranged inside the optical cable part, and a hydrophobic layer is arranged outside the polyolefin protective layer.

[0007] Further, the hydrophobic layer is one of a polyvinylidene fluoride sheath, a polypropylene sheath, and a polytetrafluoroethylene sheath.

[0008] Further, the hydrophobic layer is a fluorocarbon coating.

[0009] Further, the polyolefin protective layer is a polyolefin protective sleeve.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are as follows:

[0011] 1. In the present utility model, all components are made of non-metallic structures, which can effectively prevent lightning strike accidents, meet the application requirements of communication systems in mountainous areas and rural areas. At the same time, a single solid G-FRP round bar is arranged inside the suspension line part to increase the strength of the suspension line part. A foam foaming layer with extremely low density is arranged around the stranded cable core, which can provide buffering for the cable core and reduce the influence of external vibration on the optical fiber. Based on the two-layer sheath design, the inner polyolefin protective sheath protects the cable core, and the outer hydrophobic sheath reduces the attachment of water mist and water droplets, reduces ice accretion, and effectively solves the problems of poor anti-vibration performance and inability to prevent ice accretion of existing optical cables. Brief Description of the Drawings

[0012] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings, where:

[0013] Figure 1 is a structural schematic diagram of the present utility model;

[0014] Brief Description of the Drawings: 1 - Polyolefin protective layer, 11 - Suspension line part, 12 - Optical cable part, 13 - Suspender part, 2 - Solid G-FRP round bar, 3 - Stranded cable core, 4 - Foam foaming layer, 5 - Hydrophobic layer. Detailed Description of the Specific Embodiment

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0017] It should be noted that: reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0018] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and is a simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0019] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0020] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] A fully non-metallic figure-eight optical cable for anti-vibration and anti-icing, including a polyolefin protective layer. The polyolefin protective layer includes a suspension line part on the upper side, an optical cable part on the lower side, and a suspension belt part connecting the suspension line part and the optical cable part. A solid G-FRP round bar is arranged in the suspension line part, a stranded cable core is arranged in the optical cable part, a foam foaming layer is arranged on the inner side of the optical cable part, and a hydrophobic layer is arranged outside the polyolefin protective layer.

[0022] Further, the hydrophobic layer is one of a polyvinylidene fluoride sheath, a polypropylene sheath, and a polytetrafluoroethylene sheath.

[0023] Further, the hydrophobic layer is a fluorocarbon coating.

[0024] Further, the polyolefin protective layer is a polyolefin protective sleeve.

[0025] During the implementation of this utility model, all components are made of non-metallic structures, which can effectively prevent lightning strike accidents, meet the application requirements of communication systems in mountainous areas and rural areas. At the same time, a single solid G-FRP round bar is arranged inside the suspension line part to increase the strength of the suspension line part. A foam foaming layer with extremely low density is arranged around the stranded cable core, which can provide buffering for the cable core and reduce the impact of external vibration on the optical fiber. Based on the two-layer sheath design, the inner polyolefin protective sheath protects the cable core, and the outer hydrophobic sheath reduces the attachment of water mist and water droplets and reduces the occurrence of icing, effectively solving the problems of poor anti-vibration performance and inability to prevent icing of existing optical cables.

[0026] In addition, it is also possible to choose to set a hydrophobic fluorocarbon coating on the polyolefin protective layer.

[0027] Embodiment 1

[0028] A fully non-metallic figure-eight optical cable with anti-vibration and anti-icing functions, including a polyolefin protective layer. The polyolefin protective layer includes a suspension line part on the upper side, an optical cable part on the lower side, and a sling part connecting the suspension line part and the optical cable part. A solid G-FRP round bar is arranged inside the suspension line part, a stranded cable core is arranged inside the optical cable part, a foam foaming layer is arranged inside the optical cable part, and a hydrophobic layer is arranged outside the polyolefin protective layer.

[0029] Embodiment 2

[0030] On the basis of Embodiment 1, the hydrophobic layer is one of a polyvinylidene fluoride sheath, a polypropylene sheath, and a polytetrafluoroethylene sheath.

[0031] Embodiment 3

[0032] On the basis of the above embodiments, the hydrophobic layer is a fluorocarbon coating.

[0033] Embodiment 4

[0034] On the basis of the above embodiments, the polyolefin protective layer is a polyolefin protective sleeve.

[0035] The above is the embodiment of the present utility model. The foregoing are the various preferred embodiments of the present utility model. If the preferred implementation manners in each preferred embodiment are not obviously self-contradictory or based on a certain preferred implementation manner, each preferred implementation manner can be arbitrarily superimposed and combined for use. The embodiments and the specific parameters in the embodiments are only for clearly expressing the verification process of the utility model, and are not used to limit the patent protection scope of the present utility model. The patent protection scope of the present utility model still takes its claims as the criterion. All equivalent structural changes made by using the description and drawings of the present utility model should, by the same token, be included in the protection scope of the present utility model.

Claims

1. A vibration and ice-proof all-non-metallic figure-8 optical cable, characterized in that: The invention comprises a polyolefin protective layer (1), wherein the polyolefin protective layer (1) comprises a suspension wire portion (11) on the upper side, an optical cable portion (12) on the lower side, and a sling portion (13) connecting the suspension wire portion (11) and the optical cable portion (12); a solid G-FRP round rod (2) is arranged in the suspension wire portion (11); a layer-twisted cable core (3) is arranged in the optical cable portion (12); a foaming layer (4) is arranged on the inner side of the optical cable portion (12); and a hydrophobic layer (5) is arranged on the outer side of the polyolefin protective layer (1).

2. A vibration-proof and ice-proof all-non-metallic figure-8 optical cable according to claim 1, characterized in that: The hydrophobic layer (5) is one of a polyvinylidene fluoride sheath, a polypropylene sheath, and a polytetrafluoroethylene sheath.

3. A vibration and ice-proof all-non-metallic figure-8 optical cable according to claim 1, characterized in that: The hydrophobic layer (5) is a fluorocarbon coating.

4. A vibration-proof and ice-proof all-non-metallic figure-8 optical cable according to claim 1, characterized in that: The polyolefin protective layer (1) is a polyolefin protective sleeve.

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