Fire-resistant and high-temperature-resistant copper-clad steel grounding wire

Abstract

The utility model provides a fire-resistant and high-temperature-resistant copper-clad steel grounding wire. Comprising a protective sleeve, a central core assembly is arranged at the center of the inner side of the protective sleeve, a plurality of protective assemblies are arranged on the surface of the central core assembly, and compression-resistant assemblies are arranged on the surfaces of the protective assemblies. According to the fire-resistant and high-temperature-resistant copper-clad steel grounding wire provided by the utility model, all parts of the device are arranged in a mutual matching manner, so that the grounding wire has relatively high overall strength and relatively high flexibility, the mass of the grounding wire can be reduced on the premise of the grounding wire with the same size, and the grounding wire can be prevented from being damaged by matching with the effect of the compression-resistant assembly. Through the arrangement of the protruding layer which is staggered with the protective sleeve, a strong supporting effect can be achieved, it is guaranteed that the grounding wire has good strength, and through the cooperation of the effect of the anti-pressure piece, the anti-pressure capability of the grounding wire is further enhanced, most pressure is offset, normal work of the grounding wire is guaranteed, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding wires, in particular to a fire-resistant and high-temperature-resistant copper-clad steel grounding wire. Background Art

[0002] The ground wire is a wire that is directly connected to the earth, and can also be called a safety return line. In case of danger, it transfers high voltage directly to the earth. In order to avoid accidents, you can connect a wire to the metal casing of the appliance and connect the other end of the wire to the ground. Once the appliance leaks electricity, the ground wire will bring static electricity into the earth and release it.

[0003] In the related art, the copper-clad steel grounding wire is a composite material that combines the excellent conductivity and corrosion resistance of copper with the high strength of steel. Application number: CN 217933241 U discloses a copper-clad steel grounding wire. The device is assembled by copper-clad steel stranded wire including a wire core, a flame retardant sleeve, a heat insulation sleeve, a copper layer and a protective layer, which can further improve the fire resistance and corrosion resistance of the grounding wire and further improve the conductive effect of the grounding wire. However, the device wraps the copper-clad steel stranded wire around the outer periphery of the pressure-resistant core. Such a mechanism makes the grounding wire lack pressure resistance, which is not conducive to working in a working environment where it is often subjected to crushing. It cannot better protect the internal copper layer. The wire is easily damaged and fails, and the service life is very short.

[0004] Therefore, it is necessary to provide a fire-resistant and high-temperature resistant copper-clad steel grounding wire to solve the above technical problems. Utility Model Content

[0005] The utility model provides a fire-resistant and high-temperature resistant copper-clad steel grounding wire, which solves the problem that some existing devices wrap the copper-clad steel stranded wire around the outer periphery of the pressure-resistant core. Such a structure makes the grounding wire lack pressure resistance, is not conducive to working in a working environment where it is often subjected to crushing, cannot better protect the internal copper layer, and the wire is easily damaged and fails, resulting in a very short service life.

[0006] In order to solve the above technical problems, the utility model provides a fire-resistant and high-temperature resistant copper-clad steel grounding wire, comprising: a protective sleeve, a core component is provided at the center of the inner side of the protective sleeve, a plurality of protective components are provided on the surface of the core component, and a pressure-resistant component is provided on the surface of the protective component;

[0007] The core assembly includes two steel cores arranged inside the protective cover, the two steel cores are arranged side by side and spaced apart, a first plastic fiber and a plurality of steel fibers arranged around the first plastic fiber are arranged at the center of the inner side of the steel core, and a second plastic fiber is arranged between the two steel fibers on the same side and around the first plastic fiber at the center;

[0008] The protective component includes a plurality of copper-clad steel strands arranged on the surface of the core component, a wire core is arranged at the inner center of the copper-clad steel strand, a flame-retardant sleeve is arranged on the surface of the wire core, and a heat-insulating sleeve is fixedly arranged on the surface of the flame-retardant sleeve;

[0009] The pressure-resistant component includes a pressure-resistant layer arranged on the surface of the protective component, a plurality of protruding layers are arranged on the outer edge of the pressure-resistant layer, and pressure-resistant parts are arranged through the inner sides of the protruding layers.

[0010] Preferably, the first plastic fibers, steel fibers and second plastic fibers are twisted together in a spiral shape, and the outer edges of the two steel cores are jointly covered with elastic filling.

[0011] Preferably, the plurality of protection components are all arranged inside the protective cover, and the plurality of protection components are all wrapped around the outer surface of the core component.

[0012] Preferably, a copper layer is fixedly provided on the surface of the thermal insulation sleeve, and the copper layer adopts a flame-retardant low-smoke halogen-free polyolefin sheath layer.

[0013] Preferably, the plurality of protruding layers are distributed in an annular manner with equal distances about the axis of the pressure-resistant layer, and the pressure-resistant layer is made of silicone material.

[0014] Preferably, a plurality of grooves are provided on the surface of the protective cover along its length direction, and the distance between two adjacent grooves is 1M.

[0015] Compared with related technologies, the fire-resistant and high-temperature resistant copper-clad steel grounding wire provided by the present invention has the following beneficial effects:

[0016] The utility model provides a fire-resistant and high-temperature resistant copper-clad steel grounding wire. By coordinating the various components of the device, the grounding wire has good flexibility while having greater overall strength, and can reduce the mass of the grounding wire under the premise of the same size of the grounding wire. In conjunction with the effect of the pressure-resistant component, the protruding layer arranged in a staggered manner with the protective cover can play a strong supporting role, ensuring that the grounding wire has good strength. In conjunction with the effect of the pressure-resistant part, the pressure resistance of the grounding wire is further enhanced, most of the pressure is offset, the normal operation of the grounding wire is ensured, and the service life is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a preferred embodiment of the fire-resistant and high-temperature-resistant copper-clad steel grounding wire provided by the present invention;

[0018] Figure 2 for Figure 1 A schematic structural diagram of a front cross-sectional view of the protection assembly shown;

[0019] Figure 3 for Figure 1The structural diagram of the core component shown is a front view cross-sectional view.

[0020] Numbers in the figure: 10, protective cover; 20, core component; 21, steel core; 22, first plastic fiber; 23, steel fiber; 24, second plastic fiber; 25, elastic filling; 30, protective component; 31, copper-clad steel stranded wire; 32, wire core; 33, flame retardant cover; 34, thermal insulation cover; 35, copper layer; 40, pressure-resistant component; 41, pressure-resistant layer; 42, protruding layer; 43, pressure-resistant part; 50, groove. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0022] Please refer to Figure 1 、 Figure 2 、 Figure 3 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of the fire-resistant and high-temperature-resistant copper-clad steel grounding wire provided by the present invention; Figure 2 for Figure 1 A schematic structural diagram of a front cross-sectional view of the protection assembly shown; Figure 3 for Figure 1 A schematic diagram of the structure of a front cross-sectional view of a core assembly is shown. A fire-resistant and high-temperature resistant copper-clad steel grounding wire comprises: a protective sleeve 10, a core assembly 20 disposed at the center of the inner side of the protective sleeve 10, a plurality of protective assemblies 30 disposed on the surface of the core assembly 20, and a pressure-resistant assembly 40 disposed on the surface of the protective assembly 30;

[0023] The core component 20 includes two steel cores 21 disposed inside the protective cover 10. The two steel cores 21 are arranged side by side and spaced apart. A first plastic fiber 22 and a plurality of steel fibers 23 surrounding the first plastic fiber 22 are disposed at the center of the inner side of the steel core 21. A second plastic fiber 24 is disposed between the two steel fibers 23 on the same side and surrounds the central first plastic fiber 22.

[0024] By providing the steel core 21 and arranging the two steel cores 21 in parallel and at intervals, the carrying capacity of the grounding wire can be increased accordingly. Each steel core 21 includes steel fibers 23, first plastic fibers 22, and second plastic fibers 24. This allows the grounding wire to have greater overall strength while also having better flexibility, enabling the copper-clad steel wire to be bent well. Due to the properties of the plastic, the flexibility of the grounding wire can be enhanced, allowing it to be easily bent even when the grounding wire is thicker. Furthermore, by providing the first plastic fibers 22 and the second plastic fibers 24, the mass of the grounding wire can be reduced while maintaining the same size of the grounding wire.

[0025] The protective assembly 30 includes a plurality of copper-clad steel strands 31 disposed on the surface of the core assembly 20. A core 32 is disposed at the inner center of the copper-clad steel strands 31. A flame-retardant sleeve 33 is disposed on the surface of the core 32. A heat-insulating sleeve 34 is fixedly disposed on the surface of the flame-retardant sleeve 33.

[0026] The pressure-resistant component 40 includes a pressure-resistant layer 41 disposed on the surface of the protective component 30. A plurality of protruding layers 42 are disposed on the outer edge of the pressure-resistant layer 41. Pressure-resistant parts 43 are disposed on the inner sides of the protruding layers 42.

[0027] The protruding layer 42, which is offset from the protective cover 10, can play a strong supporting role, ensuring that the grounding wire has good strength. Combined with the function of the pressure-resistant part 43, the pressure resistance of the grounding wire is further enhanced, offsetting most of the pressure, ensuring the normal operation of the grounding wire, and improving its service life.

[0028] The first plastic fiber 22 , the steel fiber 23 and the second plastic fiber 24 are twisted together in a spiral shape, and the outer edges of the two steel cores 21 are covered with an elastic filler 25 .

[0029] The plurality of protection components 30 are all disposed inside the protective cover 10 , and the plurality of protection components 30 are all wrapped around the outer surface of the core component 20 .

[0030] A copper layer 35 is fixedly provided on the surface of the heat insulation sleeve 34 , and the copper layer 35 is a flame retardant low smoke halogen-free polyolefin sheath layer.

[0031] The plurality of protruding layers 42 are distributed in an annular manner with equal distances around the axis of the pressure-resistant layer 41 . The pressure-resistant layer 41 is made of silicone material.

[0032] A plurality of grooves 50 are provided on the surface of the protective cover 10 along its length direction, and the interval between two adjacent grooves 50 is 1M.

[0033] The working principle of the fire-resistant and high-temperature resistant copper-clad steel grounding wire provided by the utility model is as follows:

[0034] The first step: through the arrangement of the steel core 21 and the side-by-side spacing of the two steel cores 21, the carrying capacity of the grounding wire can be increased accordingly. Each steel core 21 includes a steel fiber 23, a first plastic fiber 22 and a second plastic fiber 24, so that the grounding wire has a large overall strength and good flexibility, so that the copper-clad steel wire can be bent well. Due to its plastic properties, the flexibility of the grounding wire can be enhanced, so that when the grounding wire is thicker, it can still achieve the effect of being easy to bend. Moreover, through the arrangement of the first plastic fiber 22 and the second plastic fiber 24, the mass of the grounding wire can be reduced under the premise of the same size of grounding wire. The protruding layer 42 staggered with the protective cover 10 can play a strong supporting role, ensuring that the grounding wire has good strength. With the function of the pressure-resistant part 43, the compressive capacity of the grounding wire is further enhanced, most of the pressure is offset, the normal operation of the grounding wire is ensured, and the service life is improved.

[0035] Compared with related technologies, the fire-resistant and high-temperature resistant copper-clad steel grounding wire provided by the present invention has the following beneficial effects:

[0036] By coordinating the various components of the device, the grounding wire has greater overall strength and better flexibility, and can reduce the mass of the grounding wire under the premise of the same size of the grounding wire. In conjunction with the function of the pressure-resistant component 40, the protruding layer 42 that is offset from the protective cover 10 can play a strong supporting role, ensuring that the grounding wire has better strength. In conjunction with the function of the pressure-resistant part 43, the pressure resistance of the grounding wire is further enhanced, most of the pressure is offset, the normal operation of the grounding wire is ensured, and the service life is increased.

[0037] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fire-resistant and high-temperature resistant copper-clad steel grounding wire, characterized in that: include: A protective cover (10), wherein a core component (20) is provided at the center of the inner side of the protective cover (10), a plurality of protective components (30) are provided on the surface of the core component (20), and a pressure-resistant component (40) is provided on the surface of the protective component (30); The core component (20) comprises two steel cores (21) arranged inside the protective cover (10), the two steel cores (21) being arranged in parallel and spaced apart, a first plastic fiber (22) and a plurality of steel fibers (23) arranged around the first plastic fiber (22) being arranged at the center of the inner side of the steel core (21), and a second plastic fiber (24) being arranged between the two steel fibers (23) on the same side and surrounding the first plastic fiber (22) at the center; The protective component (30) includes a plurality of copper-clad steel strands (31) arranged on the surface of the core component (20), a wire core (32) is arranged at the inner center of the copper-clad steel strands (31), a flame-retardant sleeve (33) is arranged on the surface of the wire core (32), and a heat-insulating sleeve (34) is fixedly arranged on the surface of the flame-retardant sleeve (33); The pressure-resistant component (40) comprises a pressure-resistant layer (41) arranged on the surface of the protective component (30), a plurality of protruding layers (42) are arranged on the outer edge of the pressure-resistant layer (41), and pressure-resistant parts (43) are arranged on the inner side of each of the protruding layers (42).

2. The fire-resistant and high-temperature resistant copper-clad steel grounding wire according to claim 1, characterized in that: The first plastic fibers (22), the steel fibers (23) and the second plastic fibers (24) are twisted and arranged in a spiral shape, and the outer edges of the two steel cores (21) are jointly covered with elastic filling (25).

3. The fire-resistant and high-temperature resistant copper-clad steel grounding wire according to claim 1, characterized in that: The plurality of protective components (30) are all arranged inside the protective cover (10), and the plurality of protective components (30) are all wrapped around the outer surface of the core component (20).

4. The fire-resistant and high-temperature resistant copper-clad steel grounding wire according to claim 1, characterized in that: A copper layer (35) is fixedly provided on the surface of the heat-insulating sleeve (34), and the copper layer (35) adopts a flame-retardant low-smoke halogen-free polyolefin sheath layer.

5. The fire-resistant and high-temperature resistant copper-clad steel grounding wire according to claim 1, characterized in that: The plurality of protruding layers (42) are all distributed in an equidistant annular pattern about the axis of the pressure-resistant layer (41), and the pressure-resistant layer (41) is made of silicone material.

6. The fire-resistant and high-temperature resistant copper-clad steel grounding wire according to claim 1, characterized in that: A plurality of grooves (50) are provided on the surface of the protective cover (10) along its length direction, and the distance between two consecutive grooves (50) is 1M.

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