Anti-aging photoelectric composite medium-voltage cable

Abstract

The utility model relates to the technical field of cables, in particular to an anti-aging photoelectric composite medium-voltage cable, which comprises a cable body, the cable body comprises an outer covering layer and an insulation shielding layer, the inner wall of the outer covering layer is fixedly connected with an armor, the inner wall of the armor is fixedly connected with an isolation sleeve, and the inner wall of the isolation sleeve is fixedly connected with an outer covering layer. The inner wall of the insulation shielding layer is fixedly connected with an insulator, the inner wall of the insulator is fixedly connected with a conductor shielding layer, the interior of the isolation sleeve is fixedly connected with a reinforcing core filling layer, and the surface of the cable body is provided with a fastening structure. According to the utility model, the armoring, the insulator and the reinforcing core filling layer are arranged, so that the corrosion resistance and durability are increased, the cable has good mechanical strength and tensile property, electromagnetic interference inside the cable and electromagnetic interference outside the cable are effectively shielded, the cable is resistant to high temperature and corrosion, and the fastening structure is arranged, so that the damaged part is not easy to be secondarily damaged after maintenance, and the service life of the cable is prolonged. And the service life of the cable is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, and particularly relates to an anti-aging optical and electrical composite medium-voltage cable. Background Technique

[0002] An optical and electrical composite cable is a new type of cable that combines an optical cable and a power cable. It integrates optical fibers and power transmission copper wires as transmission lines, and can solve problems such as broadband access, equipment power supply, and signal transmission. The optical and electrical composite cable is applicable to insulated communication optical cables, traffic communication optical cable projects, square optical cable projects, aerial optical cable construction, power optical cable projects, and high-altitude optical cable construction.

[0003] Under different environmental conditions, the cable must meet the requirements of resisting harsh environments. After long-term use, conventional optical and electrical composite cables are prone to aging and damage, thus causing a series of safety problems. Moreover, when the existing optical and electrical composite medium-voltage cable is damaged, it needs to be repaired. After repair, the cable has no protection device, and the repaired place may still be damaged secondarily. For this reason, we propose an anti-aging optical and electrical composite medium-voltage cable. Content of the Utility Model

[0004] In order to overcome the above technical problems, the purpose of the present utility model is to provide an anti-aging optical and electrical composite medium-voltage cable to solve the problems proposed in the above background technique that after long-term use, conventional optical and electrical composite cables are prone to aging and damage, thus causing a series of safety problems, and when the existing optical and electrical composite medium-voltage cable is damaged, it needs to be repaired. After repair, the cable has no protection device, and the repaired place may still be damaged secondarily.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: an anti-aging optical and electrical composite medium-voltage cable, including a cable body. The cable body includes an outer covering layer and an insulating shielding layer. The inner wall of the outer covering layer is fixedly connected with an armor. The inner wall of the armor is fixedly connected with an isolation sleeve. An edge filler is fixedly connected inside the isolation sleeve. The inner wall of the insulating shielding layer is fixedly connected with an insulator. The inner wall of the insulator is fixedly connected with a conductor shielding layer. A conductor is fixedly connected inside the conductor shielding layer. A strengthening core filling layer is fixedly connected inside the isolation sleeve. A fastening structure is arranged on the surface of the cable body. The fastening structure includes an outer fastening shell. A hinge is arranged on the surface of the outer fastening shell. An inner filling layer is fixedly connected to the surface of the outer fastening shell. A fixing plate is fixedly connected to the surface of the inner filling layer. A fixing bolt is movably connected to the surface of the fixing plate.

[0006] Preferably, the edge filler is fixedly connected in the space formed by the isolation sleeve and the insulating shielding layer.

[0007] Preferably, there are three groups of the insulation shielding layer, the insulator, the conductor shielding layer, and the conductor arranged circumferentially, and the strengthening core filling layer is fixedly connected in the space between the three groups of insulation shielding layers.

[0008] Preferably, the armor is made of hot-dip galvanized steel wire.

[0009] Preferably, the insulator is made of cross-linked polyethylene.

[0010] Preferably, the strengthening core filling layer is made of aramid fibers with a tightly sleeved polyethylene cushion layer.

[0011] Preferably, there are two groups of the outer fastening shell and the inner filling layer. The two groups of the outer fastening shell and the inner filling layer are hinged through the hinge. There are two fixing plates arranged on the surfaces of the two groups of inner filling layers, and the two fixing plates are fixed through the fixing bolts and threads.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The anti-aging optical and electrical composite medium-voltage cable is provided with an armor, an insulator, and a strengthening core filling layer. The armor is made of hot-dip galvanized steel wire, which increases the corrosion resistance and durability, has good mechanical strength and tensile properties, effectively shields the electromagnetic interference inside the cable and the electromagnetic wave interference outside. The insulator is made of cross-linked polyethylene, which has excellent electrical insulation performance, strong wear resistance, and reliable performance. The strengthening core filling layer is made of aramid fibers with a tightly sleeved polyethylene cushion layer, which is resistant to high temperature and corrosion.

[0014] 2. The anti-aging optical and electrical composite medium-voltage cable is provided with a fastening structure. After repairing the damaged cable, the fastening structure is covered on the original damaged part, the inner filling layer tightly covers the surface of the damaged part, and then it is fixed through the fixing bolts on both sides of the outer fastening shell, so that the damaged part is not easily damaged again after repair, increasing the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view schematic diagram of the structure of the present utility model;

[0016] Figure 2 It is a rear view schematic diagram of the structure of the present utility model;

[0017] Figure 3 It is a cross-sectional view of the structure of the present utility model;

[0018] Figure 4 It is a dynamic schematic diagram of the structure of the present utility model;

[0019] Figure 5 It is an exploded schematic diagram of a partial structure of the fastening structure of the present utility model.

[0020] In the figure: 1. Cable body; 11. Outer covering layer; 12. Armor; 13. Isolation sleeve; 14. Edge filler; 15. Insulation shielding layer; 16. Insulator; 17. Conductor shielding layer; 18. Conductor; 19. Reinforcing core filling layer; 2. Fastening structure; 21. Outer fastening shell; 22. Hinge; 23. Inner filling layer; 24. Fixed plate; 25. Fixed bolt. Specific implementation mode

[0021] 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 creative work shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-5 , an embodiment provided by the present invention:

[0023] An anti-aging optical and electrical composite medium-voltage cable includes a cable body 1. The cable body 1 includes an outer covering layer 11 and an insulation shielding layer 15. The inner wall of the outer covering layer 11 is fixedly connected with an armor 12. The inner wall of the armor 12 is fixedly connected with an isolation sleeve 13. The inside of the isolation sleeve 13 is fixedly connected with an edge filler 14. The inner wall of the insulation shielding layer 15 is fixedly connected with an insulator 16. The inner wall of the insulator 16 is fixedly connected with a conductor shielding layer 17. The inside of the conductor shielding layer 17 is fixedly connected with a conductor 18. The inside of the isolation sleeve 13 is fixedly connected with a reinforcing core filling layer 19. A fastening structure 2 is arranged on the surface of the cable body 1. The fastening structure 2 includes an outer fastening shell 21. The surface of the outer fastening shell 21 is provided with a hinge 22. The surface of the outer fastening shell 21 is fixedly connected with an inner filling layer 23. The surface of the inner filling layer 23 is fixedly connected with a fixed plate 24. The surface of the fixed plate 24 is movably connected with a fixed bolt 25. The armor 12, the insulator 16 and the reinforcing core filling layer 19 are provided. The armor 12 is made of hot-dip galvanized steel wire, which increases the corrosion resistance and durability, has good mechanical strength and tensile properties, and effectively shields the electromagnetic interference inside the cable and the electromagnetic wave interference outside. The insulator 16 is made of cross-linked polyethylene, which has excellent electrical insulation performance, strong wear resistance and reliable performance. The reinforcing core filling layer 19 is made of aramid fiber with a tight polyethylene cushion layer, which is high-temperature resistant and corrosion-resistant. The fastening structure 2 is provided. After repairing the damaged cable, the fastening structure 2 is covered on the original damaged part, the inner filling layer 23 is tightly covered on the surface of the damaged part, and then it is fixed by the fixed bolts 25 on both sides of the outer fastening shell 21, so that the damaged part is not easily damaged again after repair, and the service life of the cable is increased.

[0024] Furthermore, the edge filler 14 is fixedly connected within the space formed by the isolation sleeve 13 and the insulation shielding layer 15, and the void inside the cable is completely filled by the edge filler 14.

[0025] Furthermore, there are three sets of the insulation shielding layer 15, the insulator 16, the conductor shielding layer 17, and the conductor 18 arranged circumferentially. The strengthening core filling layer 19 is fixedly connected within the space between the three sets of insulation shielding layers 15, and the strengthening core filling layer 19 increases the overall strength of the cable.

[0026] Furthermore, the armor 12 is made of hot-dip galvanized steel wires, which increases corrosion resistance and durability, and has good mechanical strength and tensile properties.

[0027] Furthermore, the insulator 16 is made of cross-linked polyethylene, which has excellent electrical insulation properties, strong wear resistance, and reliable performance.

[0028] Furthermore, the strengthening core filling layer 19 is made of aramid fibers with a tightly sleeved polyethylene cushion layer, which is resistant to high temperatures and corrosion.

[0029] Furthermore, there are two sets of the outer fastening shell 21 and the inner filling layer 23. The two sets of the outer fastening shell 21 and the inner filling layer 23 are hinged by a hinge 22. There are two sets of fixing plates 24 on the surfaces of the two sets of inner filling layers 23. The two sets of fixing plates 24 are fixed by fixing bolts 25 and threads, and the fastening structure 2 is covered on the original damaged part, so that the damaged part is not easily damaged again after repair, increasing the service life of the cable.

[0030] Working principle: A conductor 18 is arranged at the innermost part of the cable. A reinforcing core filling layer 19 made of aramid fibers with a tight polyethylene cushion is arranged at the center of the three groups of conductors 18, which is resistant to high temperature and corrosion. The outside of the conductor 18 is covered with a conductor shielding layer 17, and the outside of the conductor shielding layer 17 is covered with an insulator 16. The insulator 16 is made of cross-linked polyethylene and has excellent electrical insulation performance, strong wear resistance and reliable performance, isolating the conductor 18 from the outside world and preventing current leakage or electric shock. The outside of the insulator 16 is covered with an insulation shielding layer 15. The conductor shielding layer 17 and the insulation shielding layer 15 shield the electromagnetic field generated by the cable inside the cable, protecting the surrounding components from being affected. The gap between the insulation shielding layer 15 and the isolating sleeve 13 is filled with an edge filler 14. The isolating sleeve 13 isolates and protects the insulated part of the cable, preventing external media from sliding along the surface of the insulated part and damaging the service life and operation safety of the cable. The outside of the isolating sleeve 13 is covered with an armor 12. The armor 12 is made of hot-dip galvanized steel wires, which increases the corrosion resistance and durability, has good mechanical strength and tensile properties, and prevents external forces from damaging the inner protective sleeve. After the surface damage of the cable is repaired, the fastening structure 2 can be sleeved on the surface of the damaged part to be repaired. By rotating the outer fastening shell 21 and the inner filling layer 23 through the hinge 22, the inner filling layer 23 is covered on the damaged part, and the outer fastening shell 21 is tightened. The fixing plate 24 is fixed by the fixing bolt 25 so that the fastening structure 2 is pressed on the surface of the damaged part, preventing the repaired damaged part from being damaged again and increasing the service life of the cable.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An anti-aging optoelectronic composite medium voltage cable, comprising a cable body (1), characterized in that: The cable body (1) comprises an outer covering layer (11) and an insulating shielding layer (15); the inner wall of the outer covering layer (11) is fixedly connected to an armor (12); the inner wall of the armor (12) is fixedly connected to an isolation sleeve (13); the interior of the isolation sleeve (13) is fixedly connected to an edge filler (14); the inner wall of the insulating shielding layer (15) is fixedly connected to an insulator (16); the inner wall of the insulator (16) is fixedly connected to a conductor shielding layer (17); the interior of the conductor shielding layer (17) is fixedly connected to a conductor The cable body (18) is provided with a reinforcing core filling layer (19) fixedly connected to the interior of the isolation sleeve (13), a fastening structure (2) is arranged on the surface of the cable body (1), the fastening structure (2) comprises an outer fastening shell (21), a hinge (22) is arranged on the surface of the outer fastening shell (21), an inner filling layer (23) is fixedly connected to the surface of the outer fastening shell (21), a fixing plate (24) is fixedly connected to the surface of the inner filling layer (23), and a fixing bolt (25) is movably connected to the surface of the fixing plate (24).

2. The anti-aging optoelectronic composite medium voltage cable according to claim 1, characterized in that: The edge filler (14) is fixedly connected in the space formed by the isolation sleeve (13) and the insulating shielding layer (15).

3. The anti-aging optoelectronic composite medium voltage cable according to claim 1, characterized in that: The insulating shielding layer (15), the insulator (16), the conductor shielding layer (17) and the conductor (18) are all circumferentially arranged in three groups, and the reinforcing core filling layer (19) is fixedly connected in the space between the three groups of the insulating shielding layers (15).

4. The anti-aging optoelectronic composite medium voltage cable according to claim 1, characterized in that: The armor (12) is made of hot-dip galvanized steel wire.

5. The anti-aging optoelectronic composite medium voltage cable according to claim 1, characterized in that: The insulator (16) is made of cross-linked polyethylene.

6. The anti-aging optoelectronic composite medium voltage cable according to claim 1, characterized in that: The reinforcing core filling layer (19) is made of aramid yarns tightly wrapped with a polyethylene cushion layer.

7. The anti-aging optoelectronic composite medium voltage cable according to claim 1, characterized in that: The outer fastening shell (21) and the inner filling layer (23) are provided in two groups, the two groups of the outer fastening shell (21) and the inner filling layer (23) are hingedly connected via the hinge (22), and the surfaces of the two groups of the inner filling layers (23) are provided with two groups of fixing plates (24), and the two groups of the fixing plates (24) are fixed via the fixing bolts (25) and threads.

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