Tensile photoelectric composite cable

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a tensile photoelectric composite cable, which comprises an outer sheath, an inner sheath and an outer sheath, the outer sheath is internally provided with an accommodating cavity, and the accommodating cavity is filled with an aramid fiber reinforcing layer; the multiple wires are arranged in the containing cavity in an annular mode at intervals, and the periphery side of each wire is wrapped with an inner sheath; the optical fiber bundle is arranged at the central position of the accommodating cavity, and the wires are arranged around the optical fiber; and the reinforcing cores are arranged in the accommodating cavity, and each reinforcing core is arranged between two adjacent wires. According to the floating cable, the aramid fiber reinforcing layer is filled in the cable, and the reinforcing core is arranged between the two adjacent wires, so that the tensile strength of the cable is effectively enhanced, the floating cable can be applied to various use scenes, and the floating cable is long in service life and high in utilization rate.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, and particularly relates to a tensile optical and electrical composite cable. Background Art

[0002] As a power transmission, signal transmission or signal control connection cable between underwater devices, a floating cable is mainly applied to mechanical devices operating in harsh underwater environments such as underwater robots, underwater salvage equipment, underwater construction equipment, underwater robotic arms, and underwater hydraulic cutters, and can be dragged and telescoped in water along with the devices. Since such cables need to withstand huge pulling forces and often need to move with underwater devices, conventional floating cables have a pure cable structure. When optical cables must be used according to engineering requirements, an optical and electrical composite floating cable will also be made. However, traditional optical and electrical composite floating cables have problems of being not suitable for bending and laying in small spaces, and are not suitable for an operating environment with repeated pulling. The traditional optical and electrical composite floating cables have a short service life, low usage frequency, narrow application scenarios, and harsh laying conditions, which limit the freedom of underwater intelligent equipment. Therefore, the defects are very obvious and a solution is urgently needed. Summary of the Utility Model

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a high-strength tensile optical and electrical composite cable.

[0004] To achieve the above purpose, an embodiment of the utility model provides a tensile optical and electrical composite cable, including:

[0005] An outer sheath, a receiving cavity is arranged inside the outer sheath, and an aramid strengthening layer is filled in the receiving cavity;

[0006] Wires, there are multiple wires, and each wire is arranged in the receiving cavity at annular intervals, and an inner sheath is wrapped around the outer peripheral side of each wire;

[0007] An optical fiber bundle, the optical fiber bundle is arranged at the central position of the receiving cavity, and each wire surrounds the optical fiber;

[0008] Reinforcing cores, the reinforcing cores are arranged in the receiving cavity, and each reinforcing core is arranged between two adjacent wires.

[0009] As a preferred solution, the reinforcing core is made of fiber-reinforced plastic material.

[0010] As a preferred solution, the diameter of the wire is not less than 6 mm, and the diameter of the reinforcing core is not less than 2.9 mm.

[0011] As a preferred solution, the aramid strengthening layer is made of Kevlar fiber material.

[0012] As a preferred solution, the optical fiber bundle includes a core wire, a shielding layer, and an armor layer. The shielding layer is sleeved on the outer peripheral side of the core wire, and the armor layer is disposed between the core wire and the shielding layer.

[0013] As a preferred solution, the braiding density of the shielding layer is not less than 85%.

[0014] As a preferred solution, an insulating layer and a lining layer are provided between the wire and the inner sheath. The insulating layer wraps the wire, and the lining layer is disposed between the insulating layer and the inner sheath.

[0015] As a preferred solution, the lining layer is made of non-woven fabric.

[0016] As a preferred solution, the surface of the outer sheath is coated with a polyurethane coating.

[0017] One or more of the above technical solutions in the tensile optical and electrical composite cable provided by the embodiments of the present invention have at least one of the following technical effects:

[0018] By arranging a filling aramid strengthening layer in the cable and arranging a strengthening core between adjacent two wires, the tensile strength of the cable is effectively enhanced, and it can be applied to a variety of usage scenarios. The floating cable has a long service life and a high utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a cross-sectional schematic diagram of the tensile optical and electrical composite cable provided by the embodiments of the present invention;

[0021] Among them, the reference numerals in the drawings are as follows:

[0022] 1 - outer sheath; 2 - wire; 3 - optical fiber bundle; 4 - strengthening core; 5 - accommodating cavity; 6 - aramid strengthening layer; 7 - inner sheath; 8 - insulating layer; 9 - lining layer; 10 - core wire; 11 - shielding layer; 12 - armor layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the embodiments of the present utility model, and should not be construed as limiting the present utility model.

[0024] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the 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 thus should not be construed as limiting the present utility model.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0026] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0027] In an embodiment of the present utility model, as Figure 1 shown, a tensile photo-optical composite cable is provided, including: an outer sheath 1, a conductor 2, an optical fiber bundle 3, and a strengthening core 4.

[0028] A receiving cavity 5 is provided inside the outer sheath 1, and an aramid strengthening layer 6 is filled inside the receiving cavity 5. The outer sheath 1 is made of a special mixed nitrile material, and a polyurethane coating 12 is coated on the surface of the outer sheath 1, which is corrosion-resistant and wear-resistant, can withstand the frictional loss with the concrete at the bending part of the underwater structure, and has an extremely long service life. The thickness of the outer sheath is not less than 8.6 mm, and the outer diameter of the outer sheath is not less than 38.8 mm. In this embodiment, the aramid strengthening layer 6 is made of Kevlar fiber material.

[0029] There are multiple wires 2, and each of the wires 2 is arranged at an annular interval in the accommodating cavity 5. An inner sheath 7 is wrapped around the outer peripheral side of each wire 2, and the material of the outer sheath 7 is special mixed nitrile. An insulating layer 8 and a lining layer 9 are arranged between the wire 2 and the inner sheath 7. The insulating layer 8 wraps the wire 2, and the lining layer 9 is arranged between the insulating layer 8 and the inner sheath 7. The lining layer 9 is made of non-woven fabric material.

[0030] The optical fiber bundle 3 is arranged at the central position of the accommodating cavity 5, and each wire 2 surrounds the optical fiber 3. The optical fiber bundle 3 includes a core wire 10, a shielding layer 11, and an armor layer 12. The number of the core wires 10 is 4. The shielding layer 11 is sleeved on the outer peripheral side of the core wire 10, and the braiding density of the shielding layer 11 is not less than 85%. The armor layer 12 is arranged between the core wire 10 and the shielding layer 11.

[0031] In this embodiment, the number of the wires 2 is 2, there are 4 core wires arranged in the optical fiber bundle 3, the diameter of the wire 2 is not less than 6 mm, the diameter of the copper core in the wire 2 is not less than 4 mm, and the diameter of the optical fiber bundle 3 is not less than 3 mm.

[0032] The strengthening core 4 is arranged in the accommodating cavity 5, and each strengthening core 4 is arranged between two adjacent wires 2. In this embodiment, the strengthening core 4 is made of fiber-reinforced plastic material, and the diameter of the strengthening core 4 is not less than 2.9 mm.

[0033] By arranging the aramid strengthening layer 6 and the strengthening core 4 in the outer sheath 1, and at the same time arranging the lining layer 9 made of non-woven fabric material between the wire 2 and the inner sheath 7 for buffering, the utility model is not easy to break even in the case of ultra-high length, has excellent tensile strength and tear resistance, and can maintain flexibility. The maximum working temperature of this cable reaches 80 °C, the safe working load is 300 kg (more than three times the weight of the equipment), and the maximum breaking force is 1. In the case of extreme accidents, the underwater equipment can be lifted ashore by dragging the cable.

[0034] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A tensile-resistant optoelectronic composite cable, characterized in that: include: An outer sheath, wherein a receiving cavity is provided in the outer sheath, and the receiving cavity is filled with an aramid reinforcement layer; Conductors, the conductors are multiple, each of the conductors is arranged in the accommodating cavity in an annular manner and at intervals, and the outer circumference of each of the conductors is wrapped with an inner sheath; An optical fiber bundle, wherein the optical fiber bundle is arranged at the center of the accommodating cavity, and each of the conductive wires is arranged around the optical fiber; A reinforcing core is arranged in the accommodating cavity, and each reinforcing core is arranged between two adjacent conducting wires.

2. The tensile-resistant optoelectronic composite cable according to claim 1, characterized in that: The reinforcing core is made of fiber reinforced plastic.

3. The tensile-resistant optoelectronic composite cable according to claim 2, characterized in that: The diameter of the wire is not less than 6 mm, and the diameter of the reinforcing core is not less than 2.9 mm.

4. The tensile-resistant optoelectronic composite cable according to claim 1, characterized in that: The aramid reinforcement layer is made of Kevlar fiber.

5. The tensile-resistant optoelectronic composite cable according to any one of claims 1 to 4, characterized in that: The optical fiber bundle comprises a core wire, a shielding layer and an armor layer. The shielding layer is arranged on the outer peripheral side of the core wire, and the armor layer is arranged between the core wire and the shielding layer.

6. The tensile-resistant optoelectronic composite cable according to claim 5, characterized in that: The braiding density of the shielding layer is not less than 85%.

7. The tensile-resistant optoelectronic composite cable according to any one of claims 1 to 4, characterized in that: An insulating layer and an inner lining layer are arranged between the conductive wire and the inner sheath. The insulating layer wraps the conductive wire, and the inner lining layer is arranged between the insulating layer and the inner sheath.

8. The tensile-resistant optoelectronic composite cable according to claim 7, characterized in that: The lining layer is made of non-woven fabric.

9. The tensile-resistant optoelectronic composite cable according to any one of claims 1 to 4, characterized in that: The surface of the outer sheath is coated with a polyurethane coating.

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