High-toughness bending-resistant cable

Abstract

The utility model belongs to the technical field of cables and discloses a high-toughness bending-resistant cable which comprises an outer sheath layer, a compression-resistant layer is arranged in the outer sheath layer, a bending-resistant layer is arranged in the compression-resistant layer, an insulating layer is arranged in the bending-resistant layer, an inner sheath layer is arranged in the insulating layer, an elastic tube is arranged in the inner sheath layer, and the elastic tube is arranged in the outer sheath layer. A flame-retardant filling layer is arranged between the outer side of the elastic tube and the inner sheath layer, a core sleeve is wrapped in the flame-retardant filling layer, and a wire core is arranged in the core sleeve. Through the arrangement of the outer sheath layer, the compression-resistant layer, the bending-resistant layer, the insulating layer, the inner sheath layer, the flame-retardant filling layer, the elastic tube, the core sleeve and the wire core, the toughness and elasticity inside and outside the cable are improved, meanwhile, the flame-retardant and heat-resistant capabilities of the cable are improved, the cable is prevented from being damaged or broken due to external force, and the service life of the cable is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a high-toughness, bend-resistant cable. Background Technology

[0002] A power cable is a type of cable used to transfer electrical energy from a power source (such as a wall socket or power plug) to electronic devices or devices for power supply. It typically consists of a conductor, insulating material, and a protective outer layer.

[0003] A bending-resistant and flame-retardant coaxial cable is disclosed in Chinese utility model patent with publication number CN202123300476.1. The cable consists of a core wire layer, an insulation layer, a first oblique sheath layer, a second oblique sheath layer, and an outer sheath layer arranged coaxially from the inside out.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: the cables are often subjected to compression and bending during use. During compression and bending, due to insufficient strength or low toughness of the cables themselves, the cables may break or break, posing safety hazards and affecting their service life. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a high-toughness, bend-resistant cable.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-toughness, bend-resistant cable, comprising an outer sheath layer, an anti-compression layer disposed inside the outer sheath layer, a bend-resistant layer disposed inside the anti-compression layer, an insulation layer disposed inside the bend-resistant layer, an inner sheath layer disposed inside the insulation layer, an elastic tube disposed inside the inner sheath layer, a flame-retardant filling layer disposed between the outer side of the elastic tube and the inner sheath layer, a core sleeve wrapped inside the flame-retardant filling layer, and a wire core disposed inside the core sleeve.

[0007] By adopting the above technical solution, through the setting of outer sheath layer, pressure-resistant layer, bending-resistant layer, insulation layer, inner sheath layer, flame-retardant filling layer, elastic tube, core sleeve and wire core, the toughness and elasticity of the cable inside and out are improved, while the flame retardancy and heat resistance of the cable are improved, avoiding damage or breakage of the cable due to external force, and extending the service life of the cable.

[0008] Furthermore, both the outer sheath and the inner sheath are made of polytetrafluoroethylene propylene.

[0009] By adopting the above technical solution and setting an outer sheath layer and an inner sheath layer made of polytetrafluoroethylene propylene, the cable has higher non-flammability, more fully meets the fire prevention and flame retardant function of the cable, and has more reliable shielding and anti-interference performance.

[0010] Furthermore, the outer wall of the outer sheath layer is provided with spirally distributed strip-shaped wear-resistant protrusions, which are rubber structural ribs.

[0011] By adopting the above technical solution, the wear-resistant protrusions formed by the rubber structural ribs on the outer wall of the outer sheath layer are used to improve the wear resistance of the cable exterior and enhance the toughness of the cable exterior.

[0012] Furthermore, the flame-retardant filler layer is phenolic foam.

[0013] By adopting the above technical solution and setting a flame-retardant filling layer composed of phenolic foam, the internal flame-retardant effect of the cable is enhanced, and the fire resistance of the cable is improved.

[0014] Furthermore, the compressive strength layer is provided with an elastic filling layer inside, and the elastic filling layer is provided with a plurality of elastic rubber plates inside. The elastic rubber plates are arc-shaped and the plurality of elastic rubber plates are evenly distributed in an array along the circumference. The elastic filling layer is made of vulcanized rubber.

[0015] By adopting the above technical solution, and by setting an elastic filling layer made of vulcanized rubber, the cable interior is provided with high elasticity and high heat resistance, preventing the cable from being damaged by compression. By setting elastic rubber plates evenly distributed in an array along the circumference, the cable toughness is increased, making the cable more resistant to bending and effectively preventing the cable from breaking during use.

[0016] Furthermore, the interior of the bending-resistant layer is provided with a reinforcing mesh, which is a galvanized copper woven mesh.

[0017] By adopting the above technical solution, and through the addition of a bend-resistant layer and a galvanized copper braided mesh, the overall strength of the cable is improved while the shielding effect is enhanced.

[0018] Furthermore, the elastic tube is internally provided with reinforcing ribs, which are high-polymer nylon fiber strands, and the elastic tube is an insulated ethylene propylene rubber tube.

[0019] By adopting the above technical solution, the elastic tube and reinforcing ribs enhance the bending resistance of the cable, effectively preventing the cable from being damaged by external bending. The elastic tube made of insulating ethylene propylene rubber tube can enhance the insulation capacity of the cable.

[0020] Furthermore, the insulating layer is a cross-linked polyethylene layer.

[0021] By adopting the above technical solution and setting an insulation layer composed of cross-linked polyethylene, the cable not only has good insulation properties, but also better resistance to environmental stress cracking, chemical corrosion, creep resistance, and electrical properties.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. In this application, by setting an outer sheath layer and an inner sheath layer made of polytetrafluoroethylene propylene, the cable has higher non-flammability, more fully meets the fire prevention and flame retardant function of the cable, and has more reliable shielding and anti-interference performance. By setting wear-resistant protrusions made of rubber structural ribs on the outer wall of the outer sheath layer, the wear resistance of the cable is improved, and the toughness of the cable outside is enhanced.

[0024] 2. In this application, by setting an elastic filling layer made of vulcanized rubber, high elasticity and high heat resistance are provided to the inside of the cable, preventing the cable from being damaged by compression. By setting an elastic rubber plate evenly distributed in an array along the circumference, the toughness of the cable is increased, making the cable more resistant to bending and effectively preventing the cable from breaking during use. By setting a bending-resistant layer and a galvanized copper braided mesh, the overall strength of the cable is improved while the shielding effect is enhanced.

[0025] 3. In this application, the flame-retardant filling layer composed of phenolic foam enhances the internal flame-retardant effect of the cable and improves its fire resistance. The elastic tube and reinforcing ribs enhance the internal bending resistance of the cable and effectively prevent the cable from being damaged by external bending. The elastic tube composed of insulating ethylene propylene rubber tube can enhance the internal insulation of the cable. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0027] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0028] Figure 3 This is a schematic diagram of the bending-resistant layer and reinforcing mesh in an embodiment of this utility model.

[0029] In the diagram: 1. Outer sheath layer; 11. Wear-resistant protrusion; 2. Compression-resistant layer; 21. Elastic filler layer; 22. Elastic rubber sheet; 3. Bending-resistant layer; 31. Reinforcing mesh; 4. Insulation layer; 5. Inner sheath layer; 6. Flame-retardant filler layer; 7. Elastic tube; 71. Reinforcing rib; 8. Core sleeve; 81. Wire core. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] like Figure 1-3 As shown in the figure, this application discloses a high-toughness, bend-resistant cable, including an outer sheath layer 1, an anti-compression layer 2 disposed inside the outer sheath layer 1, a bend-resistant layer 3 disposed inside the anti-compression layer 2, an insulation layer 4 disposed inside the bend-resistant layer 3, an inner sheath layer 5 disposed inside the insulation layer 4, an elastic tube 7 disposed inside the inner sheath layer 5, a flame-retardant filling layer 6 disposed between the outer side of the elastic tube 7 and the inner sheath layer 5, a core sleeve 8 wrapped inside the flame-retardant filling layer 6, and a wire core 81 disposed inside the core sleeve 8.

[0032] Both the outer sheath layer 1 and the inner sheath layer 5 are made of polytetrafluoroethylene propylene.

[0033] The outer wall of the outer sheath layer 1 is provided with spirally distributed strip-shaped wear-resistant protrusions 11, and the wear-resistant protrusions 11 are rubber structural ribs.

[0034] The flame-retardant filler layer 6 is phenolic foam.

[0035] The compression-resistant layer 2 has an elastic filling layer 21 inside, and a plurality of elastic rubber plates 22 are disposed inside the elastic filling layer 21. The elastic rubber plates 22 are arc-shaped and the plurality of elastic rubber plates 22 are evenly distributed in an array along the circumference. The elastic filling layer 21 is made of vulcanized rubber.

[0036] The bending-resistant layer 3 has a reinforcing mesh 31 inside, which is a galvanized copper woven mesh.

[0037] The elastic tube 7 is provided with a reinforcing rib 71 inside, the reinforcing rib 71 is a high-polymer nylon fiber strand, and the elastic tube 7 is an insulated ethylene propylene rubber tube.

[0038] The insulating layer 4 is a cross-linked polyethylene layer.

[0039] The working principle of a high-toughness, bend-resistant cable in this embodiment is as follows: By setting an outer sheath layer 1 and an inner sheath layer 5 made of polytetrafluoroethylene propylene, the cable has higher non-flammability, more comprehensively meets the fire-retardant function of the cable, and has more reliable shielding and anti-interference performance. By setting wear-resistant protrusions 11 composed of rubber structural ribs on the outer wall of the outer sheath layer 1, the wear resistance of the cable's exterior is improved, and the toughness of the cable's exterior is enhanced. By setting an elastic filling layer 21 made of vulcanized rubber, high elasticity and high heat resistance are provided for the inside of the cable, preventing the cable from being damaged by compression. By setting a uniform array along the circumference... The distributed elastic rubber sheet 22 increases the cable's toughness, making it more resistant to bending and effectively preventing breakage during use. The bend-resistant layer 3 and galvanized copper braided mesh enhance the overall strength and shielding effect of the cable. The flame-retardant filling layer 6 made of phenolic foam enhances the internal flame resistance and improves the cable's fire resistance. The elastic tube 7 and reinforcing rib 71 enhance the cable's internal bend resistance, effectively preventing damage from external bending. The elastic tube 7 made of insulating ethylene propylene rubber tube enhances the cable's internal insulation.

[0040] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A high-toughness, bend-resistant cable, comprising an outer sheath (1), characterized in that: The outer sheath layer (1) has a pressure-resistant layer (2) inside, the pressure-resistant layer (2) has a bending-resistant layer (3) inside, the bending-resistant layer (3) has an insulation layer (4) inside, the insulation layer (4) has an inner sheath layer (5) inside, the inner sheath layer (5) has an elastic tube (7) inside, the outer side of the elastic tube (7) and the inner sheath layer (5) have a flame-retardant filling layer (6) between them, the flame-retardant filling layer (6) has a core sleeve (8) inside, and the core sleeve (8) has a wire core (81) inside.

2. The high-toughness, bend-resistant cable according to claim 1, characterized in that: Both the outer sheath layer (1) and the inner sheath layer (5) are made of polytetrafluoroethylene propylene.

3. The high-toughness, bend-resistant cable according to claim 1, characterized in that: The outer wall of the outer sheath layer (1) is provided with spirally distributed strip-shaped wear-resistant protrusions (11), and the wear-resistant protrusions (11) are rubber structural ribs.

4. The high-toughness, bend-resistant cable according to claim 1, characterized in that: The flame-retardant filler layer (6) is phenolic foam.

5. The high-toughness, bend-resistant cable according to claim 1, characterized in that: The pressure-resistant layer (2) has an elastic filling layer (21) inside, and the elastic filling layer (21) has a plurality of elastic rubber plates (22) inside. The elastic rubber plates (22) are arc-shaped and the plurality of elastic rubber plates (22) are evenly distributed in an array along the circumference. The elastic filling layer (21) is made of vulcanized rubber.

6. The high-toughness, bend-resistant cable according to claim 1, characterized in that: The bending-resistant layer (3) is provided with a reinforcing mesh (31) inside, and the reinforcing mesh (31) is a galvanized copper woven mesh.

7. The high-toughness, bend-resistant cable according to claim 1, characterized in that: The elastic tube (7) is provided with reinforcing ribs (71) inside. The reinforcing ribs (71) are high-polymer nylon fiber strands, and the elastic tube (7) is an insulating ethylene propylene rubber tube.

8. The high-toughness, bend-resistant cable according to claim 1, characterized in that: The insulating layer (4) is a cross-linked polyethylene layer.

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