Zero-buoyancy composite cable

Abstract

The utility model discloses a zero-buoyancy composite cable in the field of composite cables, which comprises a cable core formed by mutually twisting a power core wire, a control wire group, a signal transmission wire group and a plurality of tensile wires, and the outer side of the cable core is coated with a filling layer. A shielding layer, a waterproof layer, an elastic layer, an outer sheath and a waterproof layer are sequentially arranged on the outer side of the filling layer from inside to outside, the filling layer and the elastic layer are both made of buoyancy foaming materials, the elastic layer comprises a plurality of hollow elastic parts which are sequentially connected left and right, and a connecting part is arranged between every two adjacent hollow elastic parts. The utility model has the advantages of light dead weight and better waterproof performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of integrated cables, and particularly relates to a zero-buoyancy integrated cable. Background Art

[0002] In the prior art, the integrated cable is a combination of cables of different types, which can not only connect to the power supply, but also realize the functions of transmitting audio and video signals, etc., and has a compact structure and is easy to use. With the development of automation technology, the number of underwater and above-water operation equipment has increased, such as diving robots, underwater video operations, underwater construction, water music fountains, etc. When working in water, electricity and signal transmission are inevitably used. Therefore, the integrated cable for underwater operation needs to have a reasonable structure to ensure its safety performance. The current integrated cables, such as submarine cables, have poor buoyancy due to their heavy materials and will sink to the bottom of the water. The weight of the cable itself will increase the load burden of the equipment. In addition, some integrated cables do not have good waterproof performance and cannot achieve long-term underwater work. Utility Model Content

[0003] The utility model aims to provide a zero-buoyancy integrated cable which has light weight and good waterproof performance.

[0004] The purpose of the utility model is achieved as follows: a zero-buoyancy integrated cable, comprising a cable core formed by twisting a power core wire, a control wire group, a signal transmission wire group and a plurality of tensile wires together, the outer side of the cable core is coated with a filling layer, and the outer side of the filling layer is provided with a shielding layer, a water-blocking layer, an elastic layer, an outer sheath and a waterproof layer in sequence from the inside to the outside, the filling layer and the elastic layer are both made of buoyancy foam material, the elastic layer comprises a plurality of hollow elastic parts connected in sequence on the left and right, and a connecting part is provided between two adjacent hollow elastic parts.

[0005] Compared with the prior art, the beneficial effects of the utility model are: by arranging a filling layer and an elastic layer made of buoyancy foam material to reduce the cable's own weight and increase the buoyancy of the cable, when the cable is dragged and sunk with the diving operation of the equipment, the inconvenience caused by excessive sinking of traditional underwater cables can be effectively avoided; the hollow elastic part can enhance the flexibility of the cable, provide bending space to reduce the radial pressure and bending stress caused by the floating water flow, and ensure the waterproof performance of the cable by arranging a water-blocking layer and a waterproof layer; this cable is a composite cable that combines power, control, and signal transmission feedback functions, is easy to use, and saves installation space.

[0006] As a further improvement of the present invention, the cross section of the hollow elastic portion is an elliptical structure.

[0007] As a further improvement of the utility model, the tensile wire is made of aramid composite fiber material.

[0008] As a further improvement of the present invention, the water-blocking layer is formed by stacking and coating multiple layers of water-blocking yarn, and water-blocking glue is filled between two adjacent layers of the water-blocking yarn.

[0009] As a further improvement of the utility model, the water-blocking layer is formed by winding a plurality of water-blocking ropes in sequence, and a water-blocking glue is filled between two adjacent water-blocking ropes.

[0010] As a further improvement of the present invention, the shielding layer is a tinned wire braided mesh.

[0011] As a further improvement of the present invention, the waterproof layer is coated with a waterproof material.

[0012] As a further improvement of the utility model, the power core wire includes a conductor and an insulating layer wrapped around the outside of the conductor, and a shielding layer is arranged outside the insulating layer.

[0013] As a further improvement of the present invention, the control line group includes three control line cores twisted together and a protective sheath extruded and wrapped around the outside of the control line cores.

[0014] As a further improvement of the utility model, the signal transmission line group includes two signal core wires twisted together to form a signal core wire pair and a protective sheath extruded and wrapped around the outside of the signal core wire pair. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the utility model.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the elastic layer in a flat state.

[0017] Figure 3 Schematic diagram of the local structure of the elastic layer.

[0018] Among them, 1 conductor, 2 insulation layer, 3 shielding layer, 4 control wire core, 5 protective cover, 6 signal core wire, 7 tensile wire, 8 filling layer, 9 water-blocking layer, 10 elastic layer, 1001 hollow elastic part, 1002 connecting part, 11 outer sheath, 12 waterproof layer. DETAILED DESCRIPTION Embodiment 1

[0019] like Figure 1-3As shown, a zero-buoyancy integrated cable includes a cable core formed by twisting a power core wire, a control wire group, a signal transmission wire group and a plurality of tensile wires 7; the power core wire includes a conductor 1 and an insulating layer 2 wrapped around the outside of the conductor 1, and a shielding layer 3 is arranged outside the insulating layer 2; the control wire group includes three control wire cores 4 twisted together and a protective sheath 5 extruded outside the control wire core 4; the signal transmission wire group includes two signal core wires 6 twisted together to form a pair of signal core wires 6 and a protective sheath 5 extruded outside the pair of signal core wires 6. Protective cover 5; the outer side of the cable core is coated with a filling layer 8, and the outer side of the filling layer 8 is provided with a shielding layer 3, a water-blocking layer 9, an elastic layer 10, an outer sheath 11 and a waterproof layer 12 in sequence from the inside to the outside. The filling layer 8 and the elastic layer 10 are both made of buoyancy foam material, and the elastic layer 10 includes a plurality of hollow elastic parts 1001 connected in sequence on the left and right sides, and a connecting part 1002 is provided between two adjacent hollow elastic parts 1001. In order to reduce the volume of the cable, the cross-section of the hollow elastic part 1001 is preferably an elliptical structure.

[0020] Specifically, the tensile wire 7 is made of aramid composite fiber material, which is a high-strength, high-modulus material with the characteristics of light weight, high strength, and durability. Adding it to the cable core can improve the overall tensile performance of the cable; the water-blocking layer 9 is formed by stacking and wrapping multiple layers of water-blocking yarn, and water-blocking glue is filled between two adjacent layers of water-blocking yarn. The waterproof layer 12 is coated with waterproof material to provide double-layer waterproof protection for the cable; the shielding layer 3 is a tinned wire woven mesh. Embodiment 2

[0021] The difference between this embodiment and the first embodiment is that the water-blocking layer 9 is formed by winding a plurality of water-blocking ropes in sequence, and the space between two adjacent water-blocking ropes is filled with water-blocking glue.

[0022] The advantages of the utility model are that both the water-blocking yarn and the water-blocking rope have excellent axial water-blocking effects, and can rapidly expand when in contact with water to form a large gel-like substance. The gel-like substance has a very strong water-retaining capacity and can effectively prevent further infiltration and diffusion of water. Combined with the waterproof layer 12, it can adapt to a variety of complex underwater environments; the shielding layer 3 adopts a single-layer or double-layer tinned wire braided mesh structure, which can ensure the stability and accuracy of underwater signal transmission and feedback signals.

[0023] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A zero buoyancy integrated cable, characterized in that: The utility model comprises a cable core which is twisted together by a power core line, a control line group, a signal transmission line group and a plurality of tensile lines. The outer side of the cable core is coated with a filling layer. The outer side of the filling layer is provided with a shielding layer, a water-blocking layer, an elastic layer, an outer sheath and a waterproof layer in sequence from the inside to the outside. The filling layer and the elastic layer are both made of buoyancy foam material. The elastic layer comprises a plurality of hollow elastic parts which are sequentially connected to each other on the left and the right, and a connecting part is provided between two adjacent hollow elastic parts.

2. A zero-buoyancy integrated cable according to claim 1, characterized in that: The cross section of the hollow elastic portion is an elliptical structure.

3. A zero-buoyancy integrated cable according to claim 1, characterized in that: The tensile wire is made of aramid composite fiber material.

4. A zero-buoyancy integrated cable according to claim 1, characterized in that: The water-blocking layer is formed by stacking and coating multiple layers of water-blocking yarns, and water-blocking glue is filled between two adjacent layers of the water-blocking yarns.

5. A zero-buoyancy integrated cable according to claim 1, characterized in that: The water-blocking layer is formed by winding a plurality of water-blocking ropes in sequence, and a water-blocking glue is filled between two adjacent water-blocking ropes.

6. A zero-buoyancy integrated cable according to claim 1, characterized in that: The shielding layer is a tinned wire braided mesh.

7. A zero-buoyancy integrated cable according to claim 1, characterized in that: The waterproof layer is coated with waterproof material.

8. A zero-buoyancy integrated cable according to claim 1, characterized in that: The power core wire comprises a conductor and an insulating layer wrapped around the outside of the conductor, and a shielding layer is arranged outside the insulating layer.

9. A zero-buoyancy integrated cable according to claim 1, characterized in that: The control line group comprises three control line cores twisted together and a protective sheath extruded and wrapped around the outer side of the control line cores.

10. A zero-buoyancy integrated cable according to claim 1, characterized in that: The signal transmission line group comprises two signal core wires twisted together to form a signal core wire pair and a protective sheath extruded and wrapped around the outside of the signal core wire pair.

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