Ultraviolet-proof cable

Abstract

The utility model discloses an ultraviolet-proof cable, which comprises an outer sheath and an electric wire, the shielding layer is arranged in the outer sheath, and the inner sheath is arranged on the inner side of the shielding layer. Meanwhile, a corrugated supporting pipe is further arranged in the inner layer sheath, at least four sets of wires are arranged in the corrugated supporting pipe, and each wire comprises an insulating layer and at least three twisted battery cells located in the insulating layer. A gypsum filling layer is filled between the corrugated supporting pipe and the electric wire; the cable provided by the utility model has the characteristics of ozone resistance, ultraviolet irradiation resistance and the like, the service life of the cable is prolonged, and the cable is prevented from cracking due to long-term ultraviolet irradiation; and the corrugated supporting pipe is connected between the inner sheath and the gypsum filling layer to enhance the bonding strength of the gypsum filling layer and the inner sheath, so that the gypsum filling layer can be prevented from moving in the cable after being broken.

Description

Technical Field

[0001] The utility model relates to the field of cables, in particular to an anti-ultraviolet cable. Background Technique

[0002] A cable is a cable used for transmitting and distributing electric energy. Power cables are commonly used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing. A power cable is a cable product used to transmit and distribute high-power electric energy in the main lines of a power system.

[0003] For example, the patent with the authorization announcement number CN221687266U discloses a moisture-proof cable, including a cable conductor. A winding layer is arranged on the surface of the cable conductor. An inner sheath is arranged on the side of the winding layer away from the cable conductor. An insulating layer is arranged on the side of the inner sheath away from the winding layer. An outer surface layer is arranged on the side of the insulating layer away from the inner sheath.

[0004] The above patent is provided with an inner sheath, an insulating rubber layer and a polytetrafluoroethylene layer, which can resist the erosion of most acids and alkalis, have little water absorption, can still maintain flexibility at low temperatures, have high electrical insulation, play a role in high temperature resistance for the cable, and at the same time increase the electrical insulation performance of the cable. Through the setting of the outer surface layer, ethylene propylene rubber layer, polyvinyl chloride layer and PE material layer, it has excellent resistance to bending, oil, flame retardancy, weather resistance, abrasion resistance, cold resistance, anti-ultraviolet, waterproof and moisture resistance, and can be used for a long time in dry or wet and harsh construction sites, increasing the service strength of the cable, and further improving the abrasion resistance performance; however, the disadvantage of the above patent is that: after axial compression, the above patent is easily damaged.

[0005] Therefore, it is necessary for us to improve such a structure to overcome the above defects. Content of the Utility Model

[0006] The purpose of the utility model is to provide an anti-ultraviolet cable to solve the problems put forward in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] The ultraviolet-proof cable includes an outer sheath and an electric wire; a shielding layer is arranged inside the outer sheath, and an inner sheath is further arranged on the inner side of the shielding layer; meanwhile, a corrugated support tube is arranged inside the inner sheath, at least four groups of electric wires are arranged inside the corrugated support tube, the electric wire includes an insulating layer and at least three stranded electric cores located inside the insulating layer; a gypsum filling layer is filled between the corrugated support tube and the electric wire, the gypsum filling layer is mainly used to provide a certain mechanical strength for the whole cable and has a flame retardant effect, and the corrugated support tube is used to connect between the inner sheath and the gypsum filling layer to enhance the bonding strength between the gypsum filling layer and the inner sheath.

[0009] Further, both the outer sheath and the inner sheath are made of rubber materials.

[0010] Further, the outer sheath is made of chloroprene rubber material.

[0011] Further, the shielding layer is woven by metal wires.

[0012] Further, the corrugated support tube is made of flame-retardant polyvinyl chloride material.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The cable has characteristics such as ozone resistance and ultraviolet radiation protection, prolongs the service life of the cable, and prevents the cable from cracking due to long-term ultraviolet radiation.

[0015] The gypsum filling layer ensures the overall mechanical strength of the cable, has a simple structure, and at the same time, the corrugated support tube is used to connect between the inner sheath and the gypsum filling layer to enhance the bonding strength between the gypsum filling layer and the inner sheath, which helps to prevent the gypsum filling layer from moving in the cable after breaking. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the ultraviolet-proof cable.

[0017] Figure 2 It is a front view of the ultraviolet-proof cable.

[0018] Figure 3 It is a side view of the ultraviolet-proof cable.

[0019] Figure 4 It is a top view of the ultraviolet-proof cable.

[0020] Figure 5 It is Figure 2 The cross-sectional view taken along the A-A direction in Specific Embodiments

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0022] Please refer to Figures 1-5 , an ultraviolet-proof cable, including an outer sheath 1 and a wire 5;

[0023] A shielding layer 2 is provided inside the outer sheath 1. At the same time, an inner sheath 3 is also provided inside the shielding layer 2. Both the outer sheath 1 and the inner sheath 3 are made of rubber materials. At the same time, a corrugated support tube 4 is provided inside the inner sheath 3. At least four groups of wires 5 are provided inside the corrugated support tube 4.

[0024] The wire 5 includes an insulating layer 6 and at least three stranded electric cores 7 located inside the insulating layer 6;

[0025] The shielding layer 2 is woven from metal wires;

[0026] Among them, the outer sheath 1 is made of chloroprene rubber material, so that the cable has characteristics such as ozone resistance and ultraviolet radiation protection, extending the service life of the cable and preventing the cable from cracking due to long-term ultraviolet radiation.

[0027] The corrugated support tube 4 is made of flame-retardant polyvinyl chloride material. When a fire occurs, the corrugated support tube 4 can be carbonized into a protective layer, which can separate the inside and outside of the cable. And when the corrugated support tube 4 burns, it can continuously release water vapor, thus playing a role in protecting the internal structure of the cable and cooling down.

[0028] At the same time, in this solution, a gypsum filling layer 8 is filled between the corrugated support tube 4 and the wire 5. The gypsum filling layer 8 is mainly used to provide a certain mechanical strength to the whole cable and has a flame-retardant effect. And using the corrugated support tube 4 to connect between the inner sheath 3 and the gypsum filling layer 8 helps to prevent the gypsum filling layer 8 from moving inside the cable after breaking.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "set", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. Anti-ultraviolet cable, including an outer sheath and an electric wire; characterized in that, A shielding layer is provided inside the outer sheath, and an inner sheath is also provided on the inner side of the shielding layer; at the same time, a corrugated support tube is further provided inside the inner sheath, and at least four groups of electric wires are provided inside the corrugated support tube. The electric wires include an insulating layer and at least three stranded electric cores located inside the insulating layer; a gypsum filling layer is filled between the corrugated support tube and the electric wires. The gypsum filling layer is mainly used to provide a certain mechanical strength for the whole cable and has a flame retardant effect. The corrugated support tube is used to connect between the inner sheath and the gypsum filling layer to enhance the bonding strength between the gypsum filling layer and the inner sheath.

2. The anti-ultraviolet cable according to claim 1, wherein Both the outer sheath and the inner sheath are made of rubber material.

3. The anti-ultraviolet cable according to claim 2, wherein The outer sheath is made of neoprene rubber material.

4. The anti-ultraviolet cable according to claim 1, wherein The shielding layer is woven from metal wires.

5. The anti-ultraviolet cable according to claim 1, characterized in that, The corrugated support tube is made of flame retardant polyvinyl chloride material.

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