Anti-vibration all-nonmetal 8-shaped optical cable

Abstract

The utility model discloses a vibration-proof all-nonmetal 8-shaped optical cable, belongs to the technical field of optical cables, and aims to provide the vibration-proof all-nonmetal 8-shaped optical cable to solve the problems that the vibration-proof performance of the existing optical cable is poor, and optical fibers in a cable core are easily influenced by external vibration. The optical cable comprises a polyethylene protection layer, the polyethylene protection 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, G-FRP belts are arranged in the suspension wire part, the suspension belt part and the optical cable part, the G-FRP belts are coated with the polyethylene protection layer, the G-FRP belt located on the optical cable part is provided with an optical cable installation hole, and the optical cable installation hole is connected with the suspension belt part. A foam foaming layer is arranged on the hole wall of the optical cable mounting hole, and a layer-stranded cable core is arranged in the foam foaming layer. And a plurality of groups of layer-stranded cable cores are arranged. And the multiple groups of layer-stranded cable cores are uniformly distributed in the foam foaming layer. The polyethylene protective layer is a polyethylene protective sleeve. The utility model is suitable for the anti-vibration all-nonmetal 8-shaped optical cable.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical cables, and in particular relates to a vibration-proof all-non-metallic 8-shaped optical cable. Background Art

[0002] 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 sheath as a transmission medium and can be used alone or in groups. Optical cable is mainly composed of optical fiber, plastic protective sleeve and plastic sheath.

[0003] The figure-8 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 geographical environment in mountainous and rural areas is generally more complex. When the optical cable vibrates, the existing optical cable has poor anti-vibration performance, and the optical fiber in the cable core is easily affected by external vibration, which cannot guarantee the communication effect. Utility Model Content

[0004] The utility model aims to provide a vibration-proof all-non-metallic 8-shaped optical cable to solve the problems that the existing optical cables have poor vibration-proof performance and the optical fibers in the cable core are easily affected by external vibrations.

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

[0006] A vibration-proof all-non-metallic figure-8 optical cable comprises a polyethylene protective layer, wherein the polyethylene protective layer comprises an upper suspension wire portion, a lower optical cable portion, and a sling portion connecting the suspension wire portion and the optical cable portion, wherein the suspension wire portion, the sling portion, and the optical cable portion are all provided with G-FRP belts, wherein the polyethylene protective layer is coated on the G-FRP belts, wherein the G-FRP belts located at the optical cable portion are provided with an optical cable mounting hole, wherein a foam layer is provided on the hole wall of the optical cable mounting hole, and wherein a layer-twisted cable core is provided in the foam layer.

[0007] Furthermore, the layer-twisted cable cores are provided in multiple groups.

[0008] Furthermore, multiple groups of layer-twisted cable cores are evenly distributed in the foam layer.

[0009] Furthermore, the polyethylene protective layer is a polyethylene protective sleeve.

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

[0011] 1. In the utility model, all components are non-metallic structures, which can effectively prevent lightning strikes and meet the application requirements of mountainous and rural communication systems. At the same time, the extremely low-density foam layer arranged around the layer-twisted cable core can provide a buffer for the cable core and reduce the impact of external vibration on the optical fiber. In addition, the G-FRP belts are arranged in the suspension wire part, the sling part, and the optical cable part of the polyethylene protective layer, which can greatly increase the tension resistance of the optical cable, effectively solving the problem that the existing optical cable has poor anti-vibration performance and the optical fiber in the cable core is easily affected by external vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work, including:

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Description of the drawings: 1-polyethylene protective layer, 11-suspension wire part, 12-optical cable part, 13-suspension belt part, 2-G-FRP belt, 3-foaming layer, 4-layer twisted cable core. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the 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 utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] It should be noted that reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0018] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only simplified descriptions for the convenience of describing the present utility model, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0019] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0020] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] A vibration-proof all-non-metallic figure-8 optical cable comprises a polyethylene protective layer, wherein the polyethylene protective layer comprises an upper suspension wire portion, a lower optical cable portion, and a sling portion connecting the suspension wire portion and the optical cable portion, wherein the suspension wire portion, the sling portion, and the optical cable portion are all provided with G-FRP belts, wherein the polyethylene protective layer is coated on the G-FRP belts, wherein the G-FRP belts located at the optical cable portion are provided with an optical cable mounting hole, wherein a foam layer is provided on the hole wall of the optical cable mounting hole, and wherein a layer-twisted cable core is provided in the foam layer.

[0022] Furthermore, the layer-twisted cable cores are provided in multiple groups.

[0023] Furthermore, multiple groups of layer-twisted cable cores are evenly distributed in the foam layer.

[0024] Furthermore, the polyethylene protective layer is a polyethylene protective sleeve.

[0025] During the implementation of the utility model, all components are non-metallic structures, which can effectively prevent lightning strikes and meet the application requirements of communication systems in mountainous areas and rural areas. At the same time, the extremely low-density foam layer arranged around the twisted cable core can provide a buffer for the cable core and reduce the impact of external vibration on the optical fiber. In addition, G-FRP belts are arranged in the suspension line part, sling part, and optical cable part of the polyethylene protective layer, which can greatly increase the tension resistance of the optical cable, effectively solving the problem that the existing optical cable has poor anti-vibration performance and the optical fiber in the cable core is easily affected by external vibration.

[0026] Example 1

[0027] A vibration-proof all-non-metallic figure-8 optical cable comprises a polyethylene protective layer, wherein the polyethylene protective layer comprises an upper suspension wire portion, a lower optical cable portion, and a sling portion connecting the suspension wire portion and the optical cable portion, wherein the suspension wire portion, the sling portion, and the optical cable portion are all provided with G-FRP belts, wherein the polyethylene protective layer is coated on the G-FRP belts, wherein the G-FRP belts located at the optical cable portion are provided with an optical cable mounting hole, wherein a foam layer is provided on the hole wall of the optical cable mounting hole, and wherein a layer-twisted cable core is provided in the foam layer.

[0028] Example 2

[0029] Based on Example 1, the stranded cable cores are provided in multiple groups.

[0030] Example 3

[0031] On the basis of the above-mentioned embodiment, a plurality of groups of layer-twisted cable cores are evenly distributed in the foaming layer.

[0032] Example 4

[0033] Based on the above embodiment, the polyethylene protective layer is a polyethylene protective sleeve.

[0034] The above is the embodiment of the utility model. The above is the preferred embodiment of the utility model. If the preferred implementation methods in each preferred embodiment are not obviously self-contradictory or based on a preferred implementation method, each preferred implementation method can be arbitrarily superimposed and used in combination. The embodiments and specific parameters in the embodiments are only for the purpose of clearly describing the verification process of the utility model, and are not used to limit the patent protection scope of the utility model. The patent protection scope of the utility model is still subject to its claims. All equivalent structural changes made by using the description and drawings of the utility model should be included in the protection scope of the utility model.

Claims

1. A vibration-proof all-non-metallic figure-8 optical cable, characterized in that: The invention comprises a polyethylene protective layer (1), wherein the polyethylene 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); the suspension wire portion (11), the sling portion (13), and the optical cable portion (12) are all provided with a G-FRP tape (2); the polyethylene protective layer (1) is coated on the G-FRP tape (2); the G-FRP tape (2) located in the optical cable portion (12) is provided with an optical cable installation hole; a foam layer (3) is provided on the hole wall of the optical cable installation hole; and a layer-twisted cable core (4) is provided in the foam layer (3).

2. A vibration-proof all-non-metallic figure-8 optical cable according to claim 1, characterized in that: The layer-twisted cable cores (4) are provided in multiple groups.

3. A vibration-proof all-non-metallic figure-8 optical cable according to claim 2, characterized in that: A plurality of groups of layer-twisted cable cores (4) are evenly distributed in the foamed layer (3).

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

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