Compression-resistant insulating flame-retardant cable

Abstract

The utility model discloses a compression-resistant insulating flame-retardant cable, which relates to the technical field of wires and cables and comprises a first cable core and three second cable cores, the first cable core and the three second cable cores are all arranged in the same inner filling layer, and three first shearing openings distributed in a central symmetry manner are arranged on the inner filling layer. The three first shearing openings are respectively located between two adjacent second cable cores, the inner filling layer is arranged in the outer sheath, the outer sheath is provided with three second shearing openings which are distributed in a central symmetry manner, and the three second shearing openings are respectively arranged opposite to the three first shearing openings; according to the utility model, the inner filling layer and the outer sheath are respectively provided with the first shearing opening and the second shearing opening, so that great convenience is provided for the maintenance of the cable, and when maintenance is needed, a technician can easily shear or rip a corresponding part without damaging the whole cable, thereby greatly shortening the maintenance time and improving the maintenance efficiency. And the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of wire and cable technology, and in particular to a pressure-resistant, insulated, and flame-retardant cable. Background Technology

[0002] Cables play a crucial role in power transmission and distribution systems, and their performance directly affects the stable operation and safety of the power system. However, when traditional cable structures require maintenance, technicians often need to disassemble the entire cable, a process that is not only cumbersome and time-consuming but also significantly increases maintenance costs.

[0003] Based on this, the present invention proposes a pressure-resistant, insulated, and flame-retardant cable to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to address the deficiencies in the existing technology by proposing a pressure-resistant, insulated, and flame-retardant cable.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pressure-resistant, insulated, and flame-retardant cable includes a first cable core and three second cable cores. The three second cable cores are evenly arranged in a centrally symmetrical manner around the first cable core. The first cable core and the three second cable cores are all disposed within the same inner filling layer. The inner filling layer has three centrally symmetrically distributed first shearing openings, which are located between two adjacent second cable cores. The inner filling layer is disposed within an outer sheath, which has three centrally symmetrically distributed second shearing openings, which are respectively arranged opposite to the three first shearing openings.

[0007] As a preferred embodiment of this utility model, the first cable core and the three second cable cores are all wrapped with a flame-retardant layer, and the four flame-retardant layers are all wrapped with an inner insulation layer. An inner buffer layer is installed between the flame-retardant layer and the inner insulation layer.

[0008] As a preferred embodiment of this utility model, the inner filling layer is wrapped inside the outer filling layer, and the inner filling layer and the outer filling layer are made of highly flame-retardant and environmentally friendly materials.

[0009] As a preferred embodiment of this utility model, the outer filling layer is wrapped with an outer buffer layer, and both the inner buffer layer and the outer buffer layer are provided with multiple buffer strips made of rubber.

[0010] As a preferred embodiment of this utility model, the outer buffer layer is wrapped with an outer insulating layer, and both the inner insulating layer and the outer insulating layer are made of polyvinyl chloride.

[0011] As a preferred embodiment of this utility model, the outer insulation layer is wrapped with an anti-corrosion layer, which is enclosed within the outer sheath. The anti-corrosion layer is made of hot-dip galvanized material.

[0012] As a preferred embodiment of this utility model, multiple anti-slip strips are fixedly installed on the outer sheath.

[0013] As a preferred embodiment of this utility model, the outer sheath and the plurality of anti-slip strips are all made of ceramicized silicone rubber.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention provides great convenience for cable maintenance by designing a first shearing opening and a second shearing opening on the inner filling layer and the outer sheath, respectively. When maintenance is required, technicians can easily cut or slit the corresponding part without damaging the entire cable, thereby greatly shortening maintenance time and reducing maintenance costs.

[0016] This invention, through the setting of a flame-retardant layer, an inner insulation layer, and an outer insulation layer, as well as the selection of highly flame-retardant and environmentally friendly materials, enables the cable of this invention to maintain stable transmission in high-temperature environments, making it less prone to combustion or spread, thus significantly improving the fire resistance of the cable.

[0017] This invention significantly improves the cable's impact resistance and wear resistance through the design of rubber buffer strips in the inner and outer buffer layers, as well as the use of ceramicized silicone rubber outer sheath and anti-slip strips. At the same time, the addition of anti-slip strips makes the cable more stable during laying and use, making it less prone to slipping or displacement, thus improving the cable's stability and safety. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Fig. 1 This is a schematic diagram of the overall structure of a pressure-resistant, insulated, and flame-retardant cable proposed in this utility model;

[0020] Fig. 2 This is a front view of a pressure-resistant, insulated, and flame-retardant cable proposed in this utility model;

[0021] Fig. 3 This is a schematic diagram of the structure of the first cable core, the second cable core, and the inner filling layer in this utility model.

[0022] In the picture:

[0023] 1. First cable core; 2. Second cable core; 3. Inner filler layer; 4. First shearing opening; 5. Outer sheath; 6. Second shearing opening; 7. Flame retardant layer; 8. Inner insulation layer; 9. Inner buffer layer; 10. Outer filler layer; 11. Outer buffer layer; 12. Outer insulation layer; 13. Anti-corrosion layer; 14. Anti-slip strip. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0025] Reference Figs. 1-3 A pressure-resistant, insulated, and flame-retardant cable includes a first cable core 1 and three second cable cores 2. The three second cable cores 2 are evenly arranged around the first cable core 1 in a centrally symmetrical manner, which improves the overall structural strength of the cable and ensures the uniformity and stability of current transmission. The first cable core 1 and the three second cable cores 2 are all arranged in the same inner filling layer 3. The inner filling layer 3 is used to fill and support the cable cores and provide additional protection. The inner filling layer 3 has three centrally symmetrically distributed first shearing slots 4, which are located between two adjacent second cable cores 2, respectively. This facilitates the cutting of the inner filling layer 3 when maintenance is needed, separating the faulty cable from the normal cable and making it easier to repair the faulty cable. The inner filling layer 3 is arranged inside an outer sheath 5 for protection. The outer sheath 5 has three centrally symmetrically distributed second shearing slots 6, which are respectively arranged opposite to the three first shearing slots 4. The outer sheath 5 can be directly cut along the second shearing slots 6 to easily access the inner filling layer 3. The first shearing opening 4 and the second shearing opening 6 respectively opened on the inner filling layer 3 and the outer sheath 5 provide great convenience for maintenance. The design of these shearing openings makes it easy to cut or slit the corresponding part when maintenance is needed, without damaging the entire cable; greatly shortening maintenance time and reducing maintenance costs.

[0026] The first cable core 1 and the three second cable cores 2 are all wrapped with a flame-retardant layer 7, and each of the four flame-retardant layers 7 is wrapped with an inner insulation layer 8. An inner buffer layer 9 is installed between the flame-retardant layer 7 and the inner insulation layer 8. The introduction of the flame-retardant layer 7 significantly improves the fire resistance of the cable, enabling it to maintain stable transmission even in high-temperature environments and preventing combustion or spread. The inner buffer layer 9 enhances the durability of the cable, effectively absorbing external impacts and compression, protecting the internal cable cores and flame-retardant layer 7 from damage. The electrical insulation performance of the inner insulation layer 8 ensures stable current transmission in the cable, preventing electrical safety problems such as current leakage and short circuits.

[0027] The inner filler layer 3 is wrapped inside the outer filler layer 10. Both the inner filler layer 3 and the outer filler layer 10 are made of highly flame-retardant and environmentally friendly materials. The layered design of the inner filler layer 3 and the outer filler layer 10 is designed to provide multiple layers of protection and support. The inner filler layer 3 mainly serves to fill and support the cable core, ensuring that the cable core does not shift or get damaged during transportation and use. The outer filler layer 10 further enhances the overall structural strength of the cable and provides additional protection. Both the inner filler layer 3 and the outer filler layer 10 are made of highly flame-retardant and environmentally friendly materials. These materials typically have excellent flame-retardant properties, thermal stability, and environmental characteristics. High flame-retardant properties mean that in high-temperature environments such as fires, these materials can slow the spread of fire, providing additional safety protection for the cable. At the same time, environmental characteristics ensure that the cable's impact on the environment is minimized during production and use.

[0028] The outer filling layer 10 is wrapped with an outer buffer layer 11. Multiple rubber-made buffer strips are installed within both the inner buffer layer 9 and the outer buffer layer 11. These rubber buffer strips possess excellent elasticity and shock absorption properties. In the cable, they are used to fill the gaps in the inner buffer layer 9 and the outer buffer layer 11, thereby increasing the cable's flexibility and reducing the impact and vibration that may occur during transportation, installation, and use. The multi-layered buffer design and the introduction of rubber buffer strips significantly improve the cable's impact resistance, enabling it to better withstand external impact forces during transportation, installation, and use, reducing damage caused by impacts.

[0029] The outer buffer layer 11 is wrapped with an outer insulation layer 12. Both the inner insulation layer 8 and the outer insulation layer 12 are made of polyvinyl chloride (PVC). The PVC inner insulation layer 8 and the outer insulation layer 12 have good electrical insulation properties, which can effectively isolate current, prevent current leakage or leakage, and ensure the safe operation of the cable.

[0030] The outer insulation layer 12 is wrapped with an anti-corrosion layer 13, which is enclosed within the outer sheath 5. The anti-corrosion layer 13 is made of hot-dip galvanized material. The hot-dip galvanized anti-corrosion layer 13 can significantly improve the cable's resistance to external corrosive environments. This zinc layer not only has excellent corrosion resistance, but can also self-repair in corrosive environments, forming a new protective layer, thereby extending the cable's service life.

[0031] Multiple anti-slip strips 14 are fixedly installed on the outer sheath 5; both the outer sheath 5 and the multiple anti-slip strips 14 are made of ceramicized silicone rubber. The ceramicized silicone rubber outer sheath 5 and the anti-slip strips 14 have excellent wear resistance, high temperature resistance and chemical resistance, which can resist the erosion and damage of the external environment and extend the service life of the cable; the addition of anti-slip strips 14 makes the cable more stable during laying and use, and less prone to slipping or displacement, thereby improving the stability and safety of the cable.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0033] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pressure-resistant, insulated, flame-retardant cable, characterized in that, The cable includes a first cable core (1) and three second cable cores (2). The three second cable cores (2) are evenly arranged around the first cable core (1) in a centrally symmetrical manner. The first cable core (1) and the three second cable cores (2) are all arranged in the same inner filling layer (3). The inner filling layer (3) has three centrally symmetrically distributed first shearing slots (4). The three first shearing slots (4) are located between two adjacent second cable cores (2). The inner filling layer (3) is arranged inside the outer sheath (5). The outer sheath (5) has three centrally symmetrically distributed second shearing slots (6). The three second shearing slots (6) are respectively arranged opposite to the three first shearing slots (4).

2. The pressure-resistant, insulated, flame-retardant cable according to claim 1, characterized in that, The first cable core (1) and the three second cable cores (2) are all wrapped with flame-retardant layers (7), and the four flame-retardant layers (7) are all wrapped with inner insulation layers (8). An inner buffer layer (9) is installed between the flame-retardant layers (7) and the inner insulation layers (8).

3. The pressure-resistant, insulated, flame-retardant cable according to claim 2, characterized in that, The inner filling layer (3) is wrapped inside the outer filling layer (10), and the inner filling layer (3) and the outer filling layer (10) are made of highly flame-retardant and environmentally friendly materials.

4. The pressure-resistant, insulated, flame-retardant cable according to claim 3, characterized in that, The outer filling layer (10) is wrapped with an outer buffer layer (11), and both the inner buffer layer (9) and the outer buffer layer (11) are provided with multiple buffer strips made of rubber.

5. A pressure-resistant, insulated, flame-retardant cable according to claim 4, characterized in that, The outer buffer layer (11) is wrapped with an outer insulation layer (12), and both the inner insulation layer (8) and the outer insulation layer (12) are made of polyvinyl chloride.

6. The compression-resistant, insulated, flame-retardant cable according to claim 5, characterized in that, The outer insulation layer (12) is wrapped with an anti-corrosion layer (13), which is enclosed in the outer sheath (5). The anti-corrosion layer (13) is made of hot-dip galvanized material.

7. The compression-resistant, insulated, flame-retardant cable according to claim 6, characterized in that, Multiple anti-slip strips (14) are fixedly installed on the outer sheath (5).

8. A pressure-resistant, insulated, flame-retardant cable according to claim 7, characterized in that, The outer sheath (5) and the multiple anti-slip strips (14) are both made of ceramicized silicone rubber.

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