Marine coaxial control cable

Abstract

The utility model discloses a marine coaxial control cable, which is characterized in that the marine coaxial control cable comprises an inner protective layer, a central reinforcing core is arranged in the inner protective layer, and a plurality of cable cores are arranged outside the central reinforcing core; the insulating layer is arranged outside the plurality of cable cores, and a filling layer is arranged inside the insulating layer; the anti-twisting assembly is arranged outside the inner protective layer, and the central reinforcing core, the anti-stretching rod and the armor layer are used in cooperation, so that the strength of the interior of the inner protective layer can be improved, and the situation that the cable core is excessively bent and makes contact with the tinned copper wire shield, and the shielding effect of the tinned copper wire shield is affected is avoided; by arranging the waterproof coating, water can be prevented from permeating into the outer protection layer, the later service life of the cable core is prolonged, the outer part of the outer protection layer is fixedly connected with a plurality of wear-resistant rods, the waterproof coating can be prevented from falling off due to friction between the outer protection layer and a ship body after the outer protection layer is fixed in a cabin, and the service life of the waterproof coating is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a coaxial control cable for ships. Background Art

[0002] With the development of the national economy, the demand for electricity is increasing. As one of the transmission carriers of electricity, power cables are also increasingly used. They are an indispensable component of power transmission and transformation equipment systems and the foundation of various industries. They are widely used in large power stations and transmission lines, as well as in airports, subways, river crossings, and cross-sea applications. Marine communication cables are widely used for communication, navigation, or signal transmission on ships and marine engineering equipment. Because ships need to work offshore, the shielding performance of marine communication cables is relatively high when transmitting signals.

[0003] For example, the Chinese patent with publication number CN209607438U proposes a new type of ship cable, which includes a power cable core, and the outer periphery of the power cable core is provided with a wrapping tape, a copper tape shielding layer and an isolation sleeve from the inside to the outside; a plurality of control core copper conductors are provided outside the isolation sleeve, wherein each control core copper conductor is provided with a control core insulation layer; the control core copper conductor and its control core insulation layer are provided with a copper plastic tape shielding layer, a tinned copper wire braided shielding layer and a halogen-free low-smoke outer sheath from the inside to the outside, and the copper plastic tape shielding layer, the tinned copper wire braided shielding layer and the halogen-free low-smoke outer sheath are concentrically arranged with the wrapping tape, the copper tape shielding layer and the isolation sleeve, so that the cable It can realize both power transmission and control signal transmission, and the two are shielded from each other to avoid mutual influence. Therefore, there is no need to lay power cables and control circuits separately during installation, which reduces the construction workload of the cables and saves space on ships. However, in the actual application of this solution, the copper cores in the power lines in the cable squeeze each other, resulting in excessive extrusion and fitting of the copper core conductors, causing excessive bending of the shielding layer at the bends on the copper core conductors. When in use, the heat generated by the copper core conductor acts on the shielding layer at the bends of the cable, which can easily cause the shielding layer to be damaged. The electromagnetic field of the power line itself affects the optical cable, affecting the efficiency of the optical cable. In order to solve the above problems, we have proposed a marine coaxial control cable. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a marine coaxial control cable, which solves the problems mentioned in the background art.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A marine coaxial control cable, comprising: an inner sheath, a central strengthening core is arranged inside the inner sheath, and a plurality of cable cores are arranged outside the central strengthening core; an insulating layer, the insulating layer is arranged outside the plurality of cable cores, a filling layer is arranged inside the insulating layer, and a tinned copper wire shield is wound outside the insulating layer; an anti-twist component, the anti-twist component is arranged outside the inner sheath and is used to prevent the cable core from being excessively twisted.

[0007] By adopting the above technical solution, by arranging the anti-twist component, the anti-twist component can prevent the cable core from being excessively twisted and contacting the tinned copper wire shield.

[0008] Preferably, the anti-twist component includes: a plurality of anti-tensile rods, the plurality of anti-tensile rods are fixedly connected to the outside of the inner sheath, and a buffer layer is arranged outside the plurality of anti-tensile rods; an outer sheath, the outer sheath is arranged outside the buffer layer.

[0009] By adopting the above technical solution, by arranging the central strengthening core, through the combined use of the central strengthening core, anti-tensile rods and the armor layer, the strength inside the inner sheath can be increased, and the cable core can be prevented from being excessively bent and contacting the tinned copper wire shield, which affects the shielding effect of the tinned copper wire shield.

[0010] Preferably, an armor layer is fixedly connected inside the outer sheath.

[0011] By adopting the above technical solution, by arranging the tinned copper wire shield, through the combined use of the tinned copper wire shield and the armor layer, the anti-interference ability of the cable core can be increased, and the cable core can be prevented from being interfered by the magnetic field during operation.

[0012] Preferably, a plurality of wear-resistant rods are fixedly connected to the outer circumferential wall surface of the outer sheath.

[0013] By adopting the above technical solution, by arranging the wear-resistant rods, since a plurality of wear-resistant rods are fixedly connected to the outside of the outer sheath, it can be avoided that the outer sheath rubs against the hull after being fixed inside the ship's cabin, resulting in the falling off of the waterproof coating, thereby improving the service life of the waterproof coating.

[0014] Preferably, a waterproof coating is arranged on the outer wall surface of the outer sheath.

[0015] By adopting the above technical solution, by arranging the waterproof coating, by arranging the waterproof coating, water can be prevented from penetrating into the inside of the outer sheath, and the service life of the cable core in the later stage can be improved.

[0016] Preferably, the filling layer is made of glass fiber material.

[0017] By adopting the above technical solution, through the setting of the filling layer, since the filling layer is made of fiberglass material, fiberglass is an excellent inorganic non-metallic material with a wide variety of types, and its advantages are good insulation, high heat resistance, good corrosion resistance, and high mechanical strength.

[0018] To sum up, the main beneficial effects of the present utility model are as follows:

[0019] By setting the central strengthening core, through the combined use of the central strengthening core, the anti-tensile rod and the armor layer, the strength inside the inner protection layer can be increased, avoiding the excessive bending of the cable core and contact with the tinned copper wire shield, which may affect the shielding effect of the tinned copper wire shield. By setting the waterproof coating, water infiltration into the interior of the outer protection layer can be prevented, improving the service life of the cable core in the later stage. By setting the wear-resistant rods, since a number of wear-resistant rods are fixedly connected to the outside of the outer protection layer, it can avoid the friction between the outer protection layer fixed inside the ship's cabin and the hull, resulting in the dropping of the waterproof coating, thereby improving the service life of the waterproof coating. By setting the filling layer, since the filling layer is made of fiberglass material, fiberglass is an excellent inorganic non-metallic material with a wide variety of types, and its advantages are good insulation, high heat resistance, good corrosion resistance, and high mechanical strength. By setting the tinned copper wire shield, through the combined use of the tinned copper wire shield and the armor layer, the anti-interference ability of the cable core can be increased, avoiding interference of the cable core by the magnetic field during operation. Brief Description of the Drawings

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0021] Figure 2 is a structural schematic diagram of the central strengthening core of the present utility model;

[0022] Figure 3 is a structural schematic diagram of the wear-resistant rod of the present utility model.

[0023] Reference Signs: 1, inner protection layer; 2, central strengthening core; 3, cable core; 4, insulating layer; 5, filling layer; 6, anti-tensile rod; 7, buffer layer; 8, outer protection layer; 9, armor layer; 10, wear-resistant rod; 11, tinned copper wire shield; 12, waterproof coating. Detailed Description of the Preferred Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present utility model.

[0025] Refer to Figure 1 、Figure 2 and Figure 3 , a marine coaxial control cable, comprising an inner sheath 1, inside the inner sheath 1 there is arranged a central strengthening core 2, outside the central strengthening core 2 there are arranged a plurality of cable cores 3, outside the plurality of cable cores 3 there is arranged an insulating layer 4, inside the insulating layer 4 there is arranged a filling layer 5, outside the insulating layer 4 there is wound a tinned copper wire shield 11, outside the inner sheath 1 there is arranged an anti-twist component for preventing the cable cores 3 from being excessively twisted. By arranging the central strengthening core 2, through the cooperation of the central strengthening core 2, the anti-tensile rod 6 and the armor layer 9, the strength inside the inner sheath 1 can be increased, avoiding the cable cores 3 from being excessively bent and contacting the tinned copper wire shield 11, which affects the shielding effect of the tinned copper wire shield 11;

[0026] The anti-twist component comprises a plurality of anti-tensile rods 6, the plurality of anti-tensile rods 6 are fixedly connected to the outside of the inner sheath 1, outside the plurality of anti-tensile rods 6 there is arranged a buffer layer 7, outside the buffer layer 7 there is arranged an outer sheath 8, inside the outer sheath 8 there is fixedly connected an armor layer 9, on the outer circumferential wall surface of the outer sheath 8 there are fixedly connected a plurality of wear-resistant rods 10, on the outer wall surface of the outer sheath 8 there is arranged a waterproof coating 12. The filling layer 5 is made of glass fiber material. By arranging the filling layer 5, since the filling layer 5 is made of glass fiber material, glass fiber is an inorganic non-metallic material with excellent performance, with a wide variety of types, and the advantages are good insulation, high heat resistance, good corrosion resistance, and high mechanical strength.

[0027] Working principle: Please refer to Figures 1-3 as shown. When in use, by arranging the central strengthening core 2, through the cooperation of the central strengthening core 2, the anti-tensile rod 6 and the armor layer 9, the strength inside the inner sheath 1 can be increased, avoiding the cable cores 3 from being excessively bent and contacting the tinned copper wire shield 11, which affects the shielding effect of the tinned copper wire shield 11. By arranging the waterproof coating 12, water can be prevented from penetrating into the inside of the outer sheath 8, improving the later service life of the cable cores 3. By arranging the wear-resistant rods 10, since there are fixedly connected a plurality of wear-resistant rods 10 to the outside of the outer sheath 8, it can be avoided that the outer sheath 8 rubs against the hull after being fixed inside the ship's cabin, resulting in the falling off of the waterproof coating 12, thereby improving the service life of the waterproof coating 12. By arranging the filling layer 5, since the filling layer 5 is made of glass fiber material, glass fiber is an inorganic non-metallic material with excellent performance, with a wide variety of types, and the advantages are good insulation, high heat resistance, good corrosion resistance, and high mechanical strength. By arranging the tinned copper wire shield 11, through the cooperation of the tinned copper wire shield 11 and the armor layer 9, the anti-interference ability of the cable cores 3 can be increased, avoiding the cable cores 3 from being interfered by the magnetic field during operation.

[0028] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A marine coaxial control cable, characterized in that: include: An inner protective layer (1), wherein a central reinforcement core (2) is provided inside the inner protective layer (1), and a plurality of cable cores (3) are provided outside the central reinforcement core (2); An insulating layer (4), the insulating layer (4) being arranged outside the plurality of cable cores (3), a filling layer (5) being arranged inside the insulating layer (4), and a tinned copper wire shield (11) being wound around the outside of the insulating layer (4); An anti-twist component is arranged outside the inner sheath (1) and is used to prevent the cable core (3) from being excessively twisted.

2. A marine coaxial control cable according to claim 1, characterized in that: The anti-twist assembly comprises: a plurality of anti-stretching rods (6), wherein the plurality of anti-stretching rods (6) are fixedly connected to the outside of the inner protective layer (1), and a buffer layer (7) is provided on the outside of the plurality of anti-stretching rods (6); An outer protective layer (8), wherein the outer protective layer (8) is arranged outside the buffer layer (7).

3. A marine coaxial control cable according to claim 2, characterized in that: An armor layer (9) is fixedly connected to the interior of the outer protective layer (8).

4. A marine coaxial control cable according to claim 2, characterized in that: A plurality of wear-resistant rods (10) are fixedly connected to the outer circular wall surface of the outer protective layer (8).

5. A marine coaxial control cable according to claim 2, characterized in that: The outer wall surface of the outer protective layer (8) is provided with a waterproof coating (12).

6. A marine coaxial control cable according to claim 1, characterized in that: The filling layer (5) is made of glass fiber material.

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