A communication double shielded cable dedicated for industrial network

Abstract

The application relates to the technical field of network cables, and discloses a communication double-layer shielding cable special for industrial networks, which comprises a fireproof coating layer, three anti-extrusion flaps are arranged in the inner diameter of the fireproof coating layer, the fireproof coating layer is fixedly connected with the anti-extrusion flaps, a hollow pipe is fixedly connected between the inner sides of the three anti-extrusion flaps, a partition sleeve is fixedly connected in the inner diameter of the hollow pipe, an anti-interference guide wire is fixedly connected in the inner diameter of the partition sleeve, and the anti-interference guide wire penetrates through and extends to the rear end of the partition sleeve. The hollow pipe, the jacking piece, the anti-extrusion flaps and the partition sleeve are matched, sufficient protection structure is provided for the wire core in the fireproof coating layer, the arc-shaped anti-extrusion flaps provide outward stress for the cable, the partition sleeve supports the hollow pipe, thereby providing space for the wire core, the jacking piece jacks up the fireproof coating layer, the outer surface of the cable is beautiful, protection structure is provided for the wire core, and the wire core is prevented from being deformed due to extrusion.

Description

Technical Field

[0001] This invention relates to the field of network cable technology, specifically to a double-shielded communication cable for industrial networks. Background Technology

[0002] Industrial network communication cables are specifically designed for data communication and control systems in industrial environments, while double-shielded cables are high-performance cables designed to cope with complex electromagnetic interference in industrial environments. They have a double-shielded structure that can effectively reduce the impact of external electromagnetic interference on communication signals.

[0003] Currently available network cables typically have a sheath covering the wire core, and the sheath and insulation layer are covered by an outer jacket. The internal wire core has no protective structure and is easily deformed by compression. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a double-shielded cable for industrial network communication, which solves the problem that the internal core wires will deform under pressure due to the lack of a protective structure.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a double-shielded communication cable for industrial networks, comprising a fireproof sheath, three anti-crushing flaps disposed within the inner diameter of the fireproof sheath, the fireproof sheath being fixedly connected to the anti-crushing flaps, a hollow tube being fixedly connected between the inner sides of the three anti-crushing flaps, a partition sleeve being fixedly connected within the inner diameter of the hollow tube, and an anti-interference guide wire being fixedly connected within the inner diameter of the partition sleeve, the anti-interference guide wire penetrating and extending to the rear end of the partition sleeve, and the outer center of the three anti-crushing flaps... Each of the three lifting components is fixedly connected to a lifting element at its position. The inner diameter of each of the three lifting components is provided with tensile-resistant wires. Three wire cores are fixedly connected to the surface of the partition sleeve. A third filling layer is filled between the partition sleeve and the hollow tube. A first filling layer is filled between the fireproof covering layer and the anti-compression flap. A second filling layer is filled between the partition sleeve, the anti-compression flap, and the fireproof covering layer. A second shielding layer is fixedly connected to the outer diameter of the fireproof covering layer. A first shielding layer is fixedly connected to the outer diameter of the second shielding layer. An insulating outer sheath is fixedly connected to the outer diameter of the first shielding layer.

[0006] Preferably, the method for preparing a double-shielded cable for industrial network communication includes the following specific steps: Step 1: First, select high-purity copper or aluminum wire as the core, then select high-purity copper wire as the anti-interference conductor to ensure the stability of electrical signal transmission. Use nylon tensile-resistant wire, then select high-quality insulating material that meets the standards and wrap it with aluminum foil as the first shielding layer and copper wire braid as the second shielding layer. Finally, prepare a cross-linked polyethylene first filling layer, an asbestos second filling layer and a polypropylene third filling layer. Step 2: Wrap a copper wire mesh second shielding layer over the fireproof covering layer as the first shielding layer. Then wrap an aluminum foil-wrapped first shielding layer over the second shielding layer as the second shielding layer. The weaving density and thickness of the second and first shielding layers can be adjusted according to the cable's anti-interference requirements. Finally, wrap an insulating outer layer made of polyvinyl chloride over the first shielding layer to give the insulating outer layer wear-resistant, corrosion-resistant, and anti-aging properties. Step 3: The cavity formed between the fireproof coating and the anti-compression flap is filled with a tensile filler made of cross-linked polyethylene to form the first filling layer. The cavity between the lifting member and the anti-compression flap is also filled with tensile filler to improve the tensile performance of the cable. Then, the cavity formed between the fireproof coating, the anti-compression flap and the hollow tube is filled with a fireproof filler made of asbestos to form the second filling layer. Finally, the cavity formed by the inner diameter partition sleeve of the hollow tube is filled with an insulating filler made of polypropylene to form the third filling layer.

[0007] Preferably, the anti-interference guide wire is a high-purity copper wire, used to reduce interference and maintain stable network transmission.

[0008] Preferably, the tensile-resistant wire is made of nylon to increase tensile strength, and the tensile-resistant wire prevents the wire core and the anti-interference guide wire from breaking during wire pulling.

[0009] Preferably, the second shielding layer and the first shielding layer are used to block external electromagnetic interference and improve the shielding of the cable.

[0010] Preferably, the lifting member is fixedly connected to the tensile wire, and the tensile wire extends through and to the rear end of the lifting member.

[0011] This invention provides a double-shielded cable for industrial network communication. It has the following advantages: 1. This invention provides a sufficient protective structure for the wire core within the fireproof coating layer by using a hollow tube, a lifting component, an anti-compression flap, and a partition sleeve. The arc-shaped anti-compression flap provides outward stress to the cable, the partition sleeve supports the hollow tube, thereby providing space for the wire core, and the lifting component lifts the fireproof coating layer, making the outer surface of the cable aesthetically pleasing and providing a protective structure for the wire core, preventing the wire core from being deformed by compression.

[0012] 2. This invention adopts a double-layer shielding structure to effectively shield electromagnetic interference and improve the cable's anti-interference ability. It is filled with fire-retardant materials to improve the cable's fire resistance and ensure the cable's safe operation in harsh environments. It also uses high-performance insulation and tensile materials to improve the cable's insulation performance and mechanical strength, and extend the cable's service life. Attached Figure Description

[0013] Figure 1 This is a cross-sectional schematic diagram of a double-shielded cable for industrial network communication according to the present invention. Figure 2 This is a schematic diagram of the process for a double-shielded cable for industrial network communication according to the present invention.

[0014] Among them, 1. Insulating outer skin; 2. Anti-interference guide wire; 3. First shielding layer; 4. Second shielding layer; 5. Hollow tube; 6. Fireproof covering layer; 7. Wire core; 8. Lifting component; 9. Tensile wire; 10. First filling layer; 11. Anti-compression folding piece; 12. Second filling layer; 13. Partition sleeve; 14. Third filling layer. Detailed Implementation

[0015] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see the appendix Figure 1 - Appendix Figure 2 This invention provides a double-shielded communication cable for industrial networks, comprising a fireproof sheathing layer 6, three anti-crushing flaps 11 arranged on the inner diameter of the fireproof sheathing layer 6, the fireproof sheathing layer 6 and the anti-crushing flaps 11 being fixedly connected, a hollow tube 5 being fixedly connected between the inner sides of the three anti-crushing flaps 11, a partition sleeve 13 being fixedly connected to the inner diameter of the hollow tube 5, an anti-interference guide wire 2 being fixedly connected to the inner diameter of the partition sleeve 13, the anti-interference guide wire 2 penetrating and extending to the rear end of the partition sleeve 13, and a lifting device being fixedly connected at the center position of the outer side of each of the three anti-crushing flaps 11. Part 8, the inner diameter of each of the three lifting parts 8 is provided with tensile wires 9, the surface of the partition sleeve 13 is fixedly connected with three wire cores 7, the partition sleeve 13 and the hollow tube 5 are filled with a third filling layer 14, the fireproof covering layer 6 and the anti-compression flap 11 are filled with a first filling layer 10, the partition sleeve 13 and the anti-compression flap 11 and the fireproof covering layer 6 are filled with a second filling layer 12, the outer diameter of the fireproof covering layer 6 is fixedly connected with a second shielding layer 4, the outer diameter of the second shielding layer 4 is fixedly connected with a first shielding layer 3, and the outer diameter of the first shielding layer 3 is fixedly connected with an insulating skin 1.

[0017] The hollow tube 5 is an equilateral triangle, and all three corners of the hollow tube 5 are rounded to prevent sharp corners from damaging the cable from the inside. The cavity inside the hollow tube 5 is filled to fix the wire core 7 and provide some protection for the wire core 7. The anti-compression flaps 11 are arc-shaped, and all three anti-compression flaps 11 open outward. When the cable is compressed, the anti-compression flaps 11 deform under force, and the opening of the anti-compression flaps 11 increases. As the degree of compression increases, the anti-compression flaps 11 gradually flatten out, maintaining the release of stress. When the compression disappears, the anti-compression flaps 11 quickly spring back and return to their original shape. The pressure received on the outside of the lifting member 8 is directly applied to the partition sleeve 13 by the lifting member 8.

[0018] A method for manufacturing a double-shielded cable for industrial network communication includes the following specific steps: Step 1: First, select high-purity copper or aluminum wire as the core 7, then select high-purity copper wire as the anti-interference conductor 2 to ensure the stability of electrical signal transmission, and select nylon tensile wire 9. Then, select high-quality insulating material that meets the standards and wrap it with aluminum foil as the first shielding layer 3 and copper wire braided as the second shielding layer 4. Finally, it is also necessary to prepare the first filler layer 10 of cross-linked polyethylene, the second filler layer 12 of asbestos and the third filler layer 14 of polypropylene material. Step 2: Wrap a copper wire woven mesh second shielding layer 4 over the fireproof covering layer 6 as the first shielding layer. Then wrap an aluminum foil wrapped first shielding layer 3 over the second shielding layer 4 as the second shielding layer. The weaving density and thickness of the second shielding layer 4 and the first shielding layer 3 can be adjusted according to the anti-interference requirements of the cable. Finally, wrap an insulating outer skin 1 made of polyvinyl chloride over the first shielding layer 3, so that the insulating outer skin 1 has wear-resistant, corrosion-resistant and anti-aging properties. Step 3: The cavity formed between the fireproof covering layer 6 and the anti-compression flap 11 is filled with a tensile filler made of cross-linked polyethylene to form a first filling layer 10. The cavity between the lifting member 8 and the anti-compression flap 11 is also filled with tensile filler to improve the tensile performance of the cable. Then, the cavity formed between the fireproof covering layer 6, the anti-compression flap 11 and the hollow tube 5 is filled with a fireproof filler made of asbestos to form a second filling layer 12. Finally, the cavity formed by the inner diameter partition sleeve 13 of the hollow tube 5 is filled with an insulating filler made of polypropylene to form a third filling layer 14.

[0019] The second shielding layer 4 uses a high-density copper wire braided mesh with a braiding density of 18 meshes / inch, and is coated with a tin layer to enhance conductivity and corrosion resistance. The first shielding layer 3 uses high-purity aluminum foil with a thickness of 0.05 mm, and is specially treated to enhance oxidation resistance and shielding effect. A high-density copper wire braided mesh is woven on the outer layer of the conductor, and the braided mesh is fixed by welding or clamping to ensure good contact between it and the conductor, forming a closed shielding layer. The outer layer of the second shielding layer 4 is covered with aluminum foil, and the aluminum foil is fixed by tape, welding, or clamping to ensure good contact between the aluminum foil and the second shielding layer 4, forming a complete double-layer shielding structure.

[0020] The anti-interference guide wire 2 is made of high-purity copper wire, used to reduce interference and maintain stable network transmission.

[0021] The anti-interference guide wire 2 also has a low resistivity, which can effectively reduce the loss during signal transmission, ensure the integrity and accuracy of the signal, and effectively improve the signal transmission efficiency. In addition, the anti-interference guide wire 2 usually maintains a certain distance from the outer shielding layer to form a certain electrical isolation, effectively preventing external electromagnetic interference from affecting signal transmission.

[0022] The tensile strength filament 9 is made of nylon and is used to increase tensile strength. The tensile strength filament 9 prevents the core wire 7 and the anti-interference guide wire 2 from breaking during wire pulling.

[0023] The second shielding layer 4 and the first shielding layer 3 are used to block external electromagnetic interference and improve the shielding of the cable.

[0024] The lifting member 8 is fixedly connected to the tensile wire 9, and the tensile wire 9 passes through and extends to the rear end of the lifting member 8.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-shielded communication cable for industrial networks, comprising a fire-resistant sheathing layer (6), characterized in that, The fireproof covering layer (6) has three anti-compression flaps (11) on its inner diameter. The fireproof covering layer (6) and the anti-compression flaps (11) are fixedly connected. A hollow tube (5) is fixedly connected between the inner sides of the three anti-compression flaps (11). A partition sleeve (13) is fixedly connected to the inner diameter of the hollow tube (5). An anti-interference guide wire (2) is fixedly connected to the inner diameter of the partition sleeve (13). The anti-interference guide wire (2) passes through and extends to the rear end of the partition sleeve (13). A lifting member (8) is fixedly connected to the center position of the outer side of each of the three anti-compression flaps (11). An anti-tension wire (9) is provided on the inner diameter of each of the three lifting members (8). The partition sleeve (13) is fixedly connected to three wire cores (7), the partition sleeve (13) and the hollow tube (5) are filled with a third filling layer (14), the fireproof covering layer (6) and the anti-compression flap (11) are filled with a first filling layer (10), the partition sleeve (13) and the anti-compression flap (11) and the fireproof covering layer (6) are filled with a second filling layer (12), the outer diameter of the fireproof covering layer (6) is fixedly connected to a second shielding layer (4), the outer diameter of the second shielding layer (4) is fixedly connected to a first shielding layer (3), and the outer diameter of the first shielding layer (3) is fixedly connected to an insulating skin (1).

2. The method for preparing a double-shielded cable for industrial network communication according to claim 1, characterized in that, The specific steps include the following: Step 1: First, select high-purity copper or aluminum wire as the core (7), then select high-purity copper wire as the anti-interference conductor (2) to ensure the stability of electrical signal transmission, and select nylon tensile wire (9). Then select high-quality insulating material that meets the standards and wrap it with aluminum foil as the first shielding layer (3) and copper wire braid as the second shielding layer (4). Finally, it is also necessary to prepare the first filling layer of cross-linked polyethylene (10), the second filling layer of asbestos (12) and the third filling layer of polypropylene material (14). Step 2: A copper wire woven mesh second shielding layer (4) is wrapped around the fireproof covering layer (6) as the first shielding layer. Then, an aluminum foil wrapped first shielding layer (3) is wrapped around the second shielding layer (4) as the second shielding layer. The weaving density and thickness of the second shielding layer (4) and the first shielding layer (3) can be adjusted according to the anti-interference requirements of the cable. Finally, an insulating skin (1) made of polyvinyl chloride is wrapped around the first shielding layer (3) to give the insulating skin (1) wear-resistant, corrosion-resistant and anti-aging properties. Step 3: The cavity formed between the fireproof covering layer (6) and the anti-compression flap (11) is filled with tensile filler made of cross-linked polyethylene to form the first filling layer (10). The cavity between the lifting member (8) and the anti-compression flap (11) is also filled with tensile filler to improve the tensile performance of the cable. Then, the cavity formed between the fireproof covering layer (6), the anti-compression flap (11) and the hollow tube (5) is filled with fireproof filler made of asbestos to form the second filling layer (12). Finally, the cavity formed by the inner diameter partition sleeve (13) of the hollow tube (5) is filled with insulating filler made of polypropylene to form the third filling layer (14).

3. The industrial network dedicated communication double-shielded cable according to claim 1, characterized in that, The anti-interference guide wire (2) is a high-purity copper wire used to reduce interference and maintain stable network transmission.

4. The double-shielded cable for industrial network communication according to claim 1, characterized in that, The tensile-resistant wire (9) is made of nylon and is used to increase tensile strength. The tensile-resistant wire (9) prevents the wire core (7) and the anti-interference guide wire (2) from breaking during wire pulling.

5. The double-shielded cable for industrial network communication according to claim 1, characterized in that, The second shielding layer (4) and the first shielding layer (3) are used to block external electromagnetic interference and improve the shielding of the cable.

6. The industrial network dedicated communication double-shielded cable according to claim 1, characterized in that, The lifting member (8) is fixedly connected to the tensile wire (9), and the tensile wire (9) extends through and to the rear end of the lifting member (8).

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