Cable with protection function

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a cable with a protection function, which comprises a metal conductor wire, an inner protective sleeve and a rubber outer tube, the surface of the metal conductor wire is sleeved with the inner protective sleeve, the inner protective sleeve surrounds the outer ring of the inner tube, a rubber inner core penetrates through the inner tube, and the rubber inner core is sleeved with a rubber outer tube. The surface of the inner pipe is connected with a protective shell, the surface of the protective shell is sleeved with an insulating layer, filler is connected between the insulating layer and the protective shell, the outer surface of the insulating layer is sleeved with a flame-retardant pipe, and the surface of the flame-retardant pipe is wound with glass fiber filaments. According to the utility model, the hydrophobic coating is sprayed on the rubber outer pipe, so that a porous super-hydrophobic coating can be formed, rainwater can be prevented from being attached to the surface of the cable in winter and icing occurs, the weight of the cable can be prevented from being increased after the rainwater is frozen, and the situation that the suspended cable is broken due to overlarge weight is avoided; and meanwhile, the hydrophobic coating has corrosion resistance, high temperature resistance and wear resistance.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, and particularly relates to a cable with a protection function. Background Technique

[0002] A cable is a combination of wires used to transmit electric energy or signals. It is usually composed of multiple mutually insulated wires and is externally wrapped with an insulating protective layer. The structure of a cable is generally more complex than that of an ordinary wire because it includes an insulating layer, a shielding layer, and a protective layer, which enables the cable to have better anti-interference ability and higher transmission efficiency in fields such as high-voltage power transmission, communication, and data transmission. Cables are widely used in urban underground power grids, outgoing lines of power stations, internal power supply in industrial and mining enterprises, and underwater transmission lines across rivers and seas. In addition, the heat resistance of a cable is usually higher than that of a wire, and it can withstand a large amount of current and heat. Sometimes, it also has certain flame retardancy and high-temperature resistance.

[0003] When a cable is laid, it is installed on a telegraph pole or an electric tower. Since the cable between two telegraph poles or electric towers is relatively long, the cable suspended over a long distance is prone to skin damage under external forces, which will affect the power transmission and even cause danger. Content of the Utility Model

[0004] The purpose of the utility model is to provide a cable with a protection function, aiming to solve the problem that the cable suspended by hanging is prone to skin damage under external forces in the prior art, which will affect the power transmission and even cause danger.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A cable with a protection function includes a metal conducting wire, an inner protective sleeve, and a rubber outer tube. The surface of the metal conducting wire is sleeved with the inner protective sleeve. The inner protective sleeve surrounds the outer circle of the inner tube. A rubber inner core penetrates through the inside of the inner tube. A protective shell is connected to the surface of the inner tube. An insulating layer is sleeved on the surface of the protective shell. A filler is connected between the insulating layer and the protective shell. A flame-retardant tube is sleeved on the outer surface of the insulating layer. A glass fiber filament is wound around the surface of the flame-retardant tube. A rubber outer tube is sleeved on the outer surface of the glass fiber filament. A hydrophobic coating is sprayed on the surface of the rubber outer tube.

[0006] To prevent the cable from being indented due to extrusion, as an optimization of the cable with a protection function of the utility model, the rubber inner core is closely attached to the inner wall of the inner tube.

[0007] To facilitate the protection of the metal conducting wire, as an optimization of the cable with a protection function of the utility model, the protective shells are distributed in a circular array on the surface of the inner tube, and the protective shell and the inner tube are of an integral structure.

[0008] To increase the strength of the cable, as an optimization of the cable with a protection function in the present utility model, the filler is made of polypropylene material, and the filler is filled in the voids inside the insulating layer.

[0009] To increase the fireproof effect of the cable, as an optimization of the cable with a protection function in the present utility model, the flame retardant tube is composed of a double layer of soft flame retardant polyethylene material and hot melt adhesive.

[0010] To increase the tensile effect of the cable, as an optimization of the cable with a protection function in the present utility model, the glass fiber filaments are evenly wound on the surface of the flame retardant tube.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, by spraying a hydrophobic coating on the rubber outer tube, a porous superhydrophobic coating can be formed, which can prevent rainwater from adhering to the surface of the cable and freezing in winter. After the rainwater freezes, it will increase the weight of the cable, avoiding the breakage caused by the excessive weight of the suspended cable. At the same time, the hydrophobic coating has corrosion resistance, high temperature resistance and wear resistance.

[0013] 2. In the present utility model, when the surface of the cable is externally squeezed, first, the protective shell can protect the surface of the inner protective sleeve, and at the same time, the inner tube can be squeezed by the protective shell. When the inner tube is squeezed, it will deform and squeeze the rubber inner core. After being squeezed, the rubber inner core can squeeze the inner tube to restore its deformation through its own elasticity, thus avoiding the cable from being indented due to external extrusion; then, the overall tensile effect of the cable can be improved by the wound glass fiber filaments, thereby reducing the probability of breakage caused by long-distance suspension of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a first internal structural schematic diagram of the present utility model;

[0017] Figure 3 is a second internal structural schematic diagram of the present utility model;

[0018] Figure 4 is a schematic diagram of the connection structure of the protective shell of the present utility model.

[0019] In the figure: 1. Metal conductive wire; 2. Inner protective sleeve; 3. Inner tube; 4. Rubber inner core; 5. Protective shell; 6. Insulating layer; 7. Filler; 8. Flame-retardant tube; 9. Glass fiber filaments; 10. Rubber outer tube; 11. Hydrophobic coating. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0021] Please refer to Figures 1-4 , the present invention provides the following technical solutions: A cable with a protection function includes a metal conductive wire 1, an inner protective sleeve 2, and a rubber outer tube 10. The surface of the metal conductive wire 1 is sleeved with an inner protective sleeve 2. The inner protective sleeve 2 surrounds the outer circle of the inner tube 3. The inside of the inner tube 3 penetrates through a rubber inner core 4. The surface of the inner tube 3 is connected to a protective shell 5. The surface of the protective shell 5 is sleeved with an insulating layer 6. A filler 7 is connected between the insulating layer 6 and the protective shell 5. The outer surface of the insulating layer 6 is sleeved with a flame-retardant tube 8. Glass fiber filaments 9 are wound around the surface of the flame-retardant tube 8. The outer surface of the glass fiber filaments 9 is sleeved with a rubber outer tube 10. A hydrophobic coating 11 is sprayed on the surface of the rubber outer tube 10.

[0022] Preferably: The rubber inner core 4 is closely attached to the inner wall of the inner tube 3.

[0023] During specific use, when the inner tube 3 is squeezed, it will deform and squeeze the rubber inner core 4. After being squeezed, the rubber inner core 4 can squeeze the inner tube 3 through its own elasticity to restore the deformation.

[0024] Preferably: The protective shells 5 are distributed in a circular array on the surface of the inner tube 3, and the protective shells 5 and the inner tube 3 are of an integral structure.

[0025] During specific use, when the surface of the cable is externally squeezed, the surface of the inner protective sleeve 2 can be protected through the protective shell 5.

[0026] Preferably: The filler 7 is made of polypropylene material, and the filler 7 fills the gaps inside the insulating layer 6.

[0027] During specific use, through the filler 7, it is possible to prevent voids from appearing inside the cable, thereby affecting the overall strength of the cable.

[0028] Preferably: The flame-retardant tube 8 is composed of a double layer of soft flame-retardant polyethylene material and hot melt adhesive.

[0029] During specific use, the flame-retardant pipe 8 has the advantages of outer layer insulation, flame retardancy, inner layer capable of buffering mechanical strain and strong sealing performance.

[0030] Preferably, the glass fiber filaments 9 are evenly wound on the surface of the flame-retardant pipe 8.

[0031] During specific use, the wound glass fiber filaments 9 can improve the overall tensile effect of the cable, thereby reducing the probability of the cable breaking due to long-distance suspension and pulling.

[0032] Working principle of implementation: When using the cable with protection function, when the surface of the cable is subjected to external force extrusion, first, the protection shell 5 can protect the surface of the inner protection sleeve 2, and at the same time, the protection shell 5 can extrude the inner pipe 3. When the inner pipe 3 is extruded, it will deform and extrude the rubber inner core 4. After the rubber inner core 4 is extruded, it can restore the deformation of the inner pipe 3 by elastic extrusion of itself; then, the wound glass fiber filaments 9 can improve the overall tensile effect of the cable, thereby reducing the probability of the cable breaking due to long-distance suspension and pulling; secondly, by spraying a hydrophobic coating 11 on the rubber outer pipe 10, a porous superhydrophobic coating can be formed, thereby avoiding winter rainwater from adhering to the surface of the cable and freezing. At the same time, the hydrophobic coating 11 has corrosion resistance, high temperature resistance and wear resistance.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cable with a protective function, comprising a metal conductive wire (1), an inner protective sheath (2) and a rubber outer tube (10), characterized in that: The surface of the metal conductive wire (1) is sleeved with an inner protective sleeve (2), the inner protective sleeve (2) surrounds the outer ring of the inner tube (3), the interior of the inner tube (3) is penetrated by a rubber inner core (4), the surface of the inner tube (3) is connected with a protective shell (5), the surface of the protective shell (5) is sleeved with an insulating layer (6), a filler (7) is connected between the insulating layer (6) and the protective shell (5), the outer surface of the insulating layer (6) is sleeved with a flame retardant tube (8), the surface of the flame retardant tube (8) is wound with glass fiber yarns (9), the outer surface of the glass fiber yarns (9) is sleeved with a rubber outer tube (10), and the surface of the rubber outer tube (10) is sprayed with a hydrophobic coating (11).

2. A cable with a protective function according to claim 1, characterized in that: The rubber inner core (4) is tightly fitted on the inner wall of the inner tube (3).

3. The cable with protection function according to claim 1, characterized in that: The protective shells (5) are distributed in a ring array on the surface of the inner tube (3), and the protective shells (5) and the inner tube (3) are an integral structure.

4. The cable with protective function according to claim 1, characterized in that: The filler (7) is made of polypropylene material and is filled in the gap inside the insulating layer (6).

5. The cable with protection function according to claim 1, characterized in that: The flame retardant tube (8) is composed of a double layer of soft flame retardant polyethylene material and hot melt adhesive.

6. The cable with protection function according to claim 1, characterized in that: The glass fiber filaments (9) are evenly wound on the surface of the flame retardant tube (8).

Images