Moistureproof cable

Abstract

The utility model relates to the technical field of cables, and discloses a moisture-proof cable, which comprises a cable body, the cable body comprises a plurality of conductors, a first shielding layer is wrapped on the outer side of each conductor, an insulating layer is wrapped on the outer side of each first shielding layer, and a second shielding layer is wrapped on the outer side of each insulating layer. The outer sides of the plurality of second shielding layers are simultaneously wrapped by an inner sheath, the outer side of the inner sheath is wrapped by a steel tape armor, the outer side of the steel tape armor is wrapped by a waterproof layer, the outer side of the waterproof layer is wrapped by an outer sheath, and a filling layer is arranged between the plurality of second shielding layers and the inner sheath. According to the moisture-proof cable, the outer side of the steel tape armoring is wrapped with the waterproof layer, so that when the cable body is buried underground, moisture contained in the ground can be prevented from entering the cable to cause damage and erosion of the conductor, and meanwhile, water vapor and the like can be prevented from corroding the steel tape armoring to cause corrosion damage of the steel tape armoring.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a moisture-proof cable. Background Art

[0002] A cable is a device for transmitting electric energy or signals, usually composed of several or several groups of wires. There are power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single-strand or multi-strand wires and an insulating layer, used to connect circuits, electrical appliances, etc.

[0003] The existing cables have insufficient moisture-proof and waterproof performance, and are easily eroded by moisture or water in some specific environments, which will affect the use effect and safety of the cables. For example, when installing cables underground, a waterproof pipe is usually sleeved outside the cable to prevent groundwater from seeping into the interior and eroding the cable. However, there may still be cracks and gaps at the buried part and joints of the waterproof pipe. Buried underground for a long time, water vapor may enter the interior through these gaps, causing certain erosion to the cable, which is not conducive to the safety and stability of cable use. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a moisture-proof cable. For example, a moisture-proof cable is provided to enable the cable itself to have a certain moisture-proof and waterproof performance, improving the safety and stability of cable use.

[0005] To achieve the above object, the utility model provides the following technical solution: A moisture-proof cable, including a cable body, the cable body includes a plurality of conductors, a first shielding layer is wrapped outside each of the plurality of conductors, an insulating layer is wrapped outside each of the plurality of first shielding layers, a second shielding layer is wrapped outside each of the plurality of insulating layers, an inner sheath is simultaneously wrapped outside the plurality of second shielding layers, a steel tape armor is wrapped outside the inner sheath, a waterproof layer is wrapped outside the steel tape armor, an outer sheath is wrapped outside the waterproof layer, and a filling layer is provided between the plurality of second shielding layers and the inner sheath.

[0006] Further, an anti-erosion layer is provided between the insulating layer and the second shielding layer.

[0007] Further, a first wear-resistant layer is wrapped outside the second shielding layer, and the first wear-resistant layer is located in the filling layer.

[0008] Further, a second wear-resistant layer is provided between the inner sheath and the steel tape armor.

[0009] Further, a moisture-proof layer is provided between the inner sheath and the second wear-resistant layer.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] For this moisture-proof cable, by wrapping a waterproof layer outside the steel tape armor, it can not only prevent the moisture in the ground from entering the cable interior when the cable body is buried underground, causing damage and erosion to the conductor, but also prevent the steel tape armor from being eroded by water vapor, etc., resulting in rust and damage to the steel tape armor. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic cross-sectional structure diagram of the cable body of the utility model.

[0013] In the figure: 1. Cable body; 2. Conductor; 3. First shielding layer; 4. Insulating layer; 5. Second shielding layer; 6. Inner sheath; 7. Steel tape armor; 8. Waterproof layer; 9. Outer sheath; 10. Filling layer; 11. Anti-corrosion layer; 12. First wear-resistant layer; 13. Second wear-resistant layer; 14. Moisture-proof layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.

[0015] Please refer to Figure 1 , a moisture-proof cable, including a cable body 1, the cable body 1 includes a plurality of conductors 2, a first shielding layer 3 is wrapped outside each of the plurality of conductors 2, an insulating layer 4 is wrapped outside each of the plurality of first shielding layers 3, a second shielding layer 5 is wrapped outside each of the plurality of insulating layers 4, an inner sheath 6 is simultaneously wrapped outside each of the plurality of second shielding layers 5, a steel tape armor 7 is wrapped outside the inner sheath 6, a waterproof layer 8 is wrapped outside the steel tape armor 7, an outer sheath 9 is wrapped outside the waterproof layer 8, and a filling layer 10 is provided between a plurality of anti-corrosion layers 11 and the inner sheath 6.

[0016] As Figure 1 shown, a moisture-proof cable in the utility model is similar to the existing cable structure. The main improvement point of the utility model lies in strengthening the waterproof performance of the cable itself to avoid damage to the cable caused by water ingress when buried underground, as Figure 1As shown, when the moisture-proof cable of the present utility model is in use, when the cable body 1 is buried underground, in rainy and snowy weather and in low-lying areas, there may be more water surrounding the cable body 1. At this time, the outermost outer sheath 9 can play a certain waterproof effect. However, during long-term use, when cracks appear in the outer sheath 9, some water vapor may enter the cable body 1 through the cracks. At this time, the waterproof layer 8 can block the water vapor, thereby preventing the water vapor from contacting the steel tape armor 7, avoiding problems such as water vapor erosion and rust caused by the steel tape armor 7 contacting water vapor for a long time, improving the waterproof performance inside the cable body 1, and increasing the service life of the cable body 1. Among them, the waterproof layer 8 can be made of a polymer material.

[0017] As Figure 1 shown, an anti-corrosion layer 11 is provided between the insulating layer 4 and the second shielding layer 5. By adding the anti-corrosion layer 11 between the insulating layer 4 and the second shielding layer 5, the influence of uneven external temperature on the internal first shielding layer 3 and the conductor 2 can be reduced, making the functions such as signal transmission of the conductor 2 more stable. The anti-corrosion layer 11 can be made of a heat-insulating material.

[0018] As Figure 1 shown, the outside of the second shielding layer 5 is wrapped with a first wear-resistant layer 12, and the first wear-resistant layer 12 is located in the filling layer 10. By setting the first wear-resistant layer 12, the second shielding layer 5 inside the filling layer 10 can be protected, reducing the possible frictional damage caused by the filling layer 10 to the second shielding layer 5.

[0019] As Figure 1 shown, a second wear-resistant layer 13 is provided between the inner sheath 6 and the steel tape armor 7. Through the second wear-resistant layer 13, the inner sheath 6 inside the steel tape armor 7 can be protected, reducing the possible frictional damage caused by the steel tape armor 7 to the inner sheath 6. At the same time, when rust appears on the steel tape armor 7, the second wear-resistant layer 13 can prevent the rust blocks from damaging the inner sheath 6, improving the structural stability of the cable body 1.

[0020] As Figure 1 shown, a moisture-proof layer 14 is provided between the inner sheath 6 and the second wear-resistant layer 13. When rust appears on the steel tape armor 7, water vapor will inevitably penetrate inward through the steel tape armor 7. At this time, the moisture-proof layer 14 can prevent the water vapor from entering the inside of the cable body 1, further improving the moisture-proof effect of the cable body 1 and preventing the internal conductor 2 from being damaged by contacting the water vapor.

[0021] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model.

Claims

1. A moisture-proof cable, comprising a cable body (1), characterized in that: The cable body (1) comprises a plurality of conductors (2), the outer sides of the plurality of conductors (2) are all wrapped with a first shielding layer (3), the outer sides of the plurality of first shielding layers (3) are all wrapped with an insulating layer (4), the outer sides of the plurality of insulating layers (4) are all wrapped with a second shielding layer (5), the outer sides of the plurality of second shielding layers (5) are simultaneously wrapped with an inner sheath (6), the outer side of the inner sheath (6) is wrapped with a steel belt armor (7), the outer side of the steel belt armor (7) is wrapped with a waterproof layer (8), the outer side of the waterproof layer (8) is wrapped with an outer sheath (9), and a filling layer (10) is provided between the plurality of second shielding layers (5) and the inner sheath (6).

2. A moisture-proof cable according to claim 1, characterized in that: An anti-corrosion layer (11) is provided between the insulating layer (4) and the second shielding layer (5).

3. A moisture-proof cable according to claim 1 or 2, characterized in that: The outer side of the second shielding layer (5) is wrapped with a first wear-resistant layer (12), and the first wear-resistant layer (12) is located inside the filling layer (10).

4. A moisture-proof cable according to claim 1 or 2, characterized in that: A second wear-resistant layer (13) is provided between the inner sheath (6) and the steel belt armor (7).

5. A moisture-proof cable according to claim 4, characterized in that: A moisture-proof layer (14) is provided between the inner sheath (6) and the second wear-resistant layer (13).

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