High strength stretch resistant structural polyvinyl chloride wire

Abstract

The utility model belongs to the field of electric wire, and disclose a kind of high-strength tensile structure polyvinyl chloride electric wire, including wire core, multiple wire core is covered in inner sheath, the insulating layer is equipped on the outer side of inner sheath, and the tensile layer is arranged outside insulating layer, outer tensile layer is equipped with outer sheath and anticorrosive layer, wire core is multiple copper core polymerization, and metal nickel plating layer is evenly plated on copper core, tensile layer includes constraint layer and multiple tensile filling bundles, multiple filling holes along the direction of electric wire are arranged in constraint layer, and multiple filling holes are all inserted with tensile filling bundle, and tensile filling bundle is multiple glass fiber silk polymerization, two groups of avoiding holes are arranged on constraint layer and tensile layer, and two groups of avoiding holes are all inserted with tensile reinforcing rib, the utility model structure design is compact and reasonable, can greatly improve the tensile performance of electric wire, can prevent electric wire from being affected by self weight and stretching fracture.

Description

Technical Field

[0001] This utility model relates to the field of electrical wires, specifically a high-strength, tensile-resistant polyvinyl chloride (PVC) electrical wire. Background Technology

[0002] Electrical wires, as a fundamental electrical material used to transmit electrical energy or signals, play an indispensable role in all areas of modern society. They mainly consist of a conductor, an insulation layer, and a sheath. The conductor, the core channel for current or signal transmission, is typically made of metals with good conductivity, such as copper or aluminum. The insulation layer surrounds the conductor, playing a crucial role in isolating current and preventing leakage; it is made from a variety of materials, including rubber and plastics. The sheath, the outermost layer, not only provides mechanical protection for the internal structure but also resists corrosion from external environmental factors such as moisture, chemicals, and mechanical damage.

[0003] The development of electrical wires is closely linked to the technological progress of human society. Early electrical wires had simple structures and limited performance. With the advancement of the Industrial Revolution and the continuous development of electrical technology, people's performance requirements for wires have increased significantly. Today, electrical wires are diverse, ranging from ordinary household wiring to high-voltage transmission lines, from delicate connecting wires for electronic devices to special wires used in special environments, each playing its own role in different scenarios. In daily life, electrical wires are widely used in homes, commercial buildings, and industrial facilities, providing power to various electrical devices and ensuring the normal operation of lighting, air conditioning, televisions, computers, and other equipment. In the transportation sector, electrical wires are used in electric vehicle charging systems, rail transit power networks, and the electrical systems of aircraft and ships. In the communications sector, electrical wires are crucial for signal transmission, ensuring the smooth operation of telephone, internet, and other communication services.

[0004] In many practical applications, electrical wires are subject to their own weight, resulting in significant tensile forces. This issue seriously threatens the lifespan and safety of electrical wires.

[0005] In overhead power transmission lines, wires typically span long distances, such as across diverse terrains like mountainous areas and plains. Due to their own weight, the wires naturally sag between poles or towers. As the span increases, the tensile force generated by the wire's own weight also increases significantly. For example, in some remote long-distance transmission lines, the span can reach hundreds or even thousands of meters, resulting in immense tensile forces on the wires. In severe weather conditions, such as strong winds or blizzards, the swaying of the wires intensifies, and the combined effect of its own weight, wind force, and the added weight of ice and snow further increases the tensile force. Prolonged exposure to this high tensile force can cause fatigue in the internal metal conductors of the wire, gradually destroying the metal lattice structure, leading to a decrease in wire strength and eventual breakage. A broken wire can cause widespread power outages, severely disrupting people's lives and production, and potentially resulting in significant economic losses. In vertically installed applications, such as elevator shafts in high-rise buildings and mines, wires also face the problem of tensile forces due to their own weight. In elevator shafts of high-rise buildings, the elevator's traveling cable needs to constantly expand and contract with the elevator's vertical movement. The cable's own weight causes it to bear significant tensile forces in the vertical direction. Furthermore, the frequent starts and stops of the elevator generate dynamic impact forces, further exacerbating the tensile stress on the cable. In mines, wires used to transmit power and signals need to extend from the surface to depths underground. With increasing depth, the tensile force caused by the wire's own weight continuously increases. Simultaneously, the complex environment in mines, with its humidity and corrosive gases, accelerates the aging of the wire's insulation and sheath, reducing the overall strength of the wire and making it more prone to breakage under its own weight. A broken wire in a mine not only disrupts normal production operations but may also threaten the lives of underground workers. Moreover, even in relatively short-distance wiring scenarios, such as electrical equipment connections in factory workshops or localized wiring within large commercial buildings, improper installation methods that fail to fully consider the impact of gravity can lead to unnecessary tensile forces on the wires. For example, in factory workshops where equipment vibrates significantly, if electrical wires are not properly secured and supported, they will be constantly stretched by the vibrations of the equipment, and over time, they are prone to breakage.

[0006] In conclusion, the tensile force exerted by the weight of electrical wires during actual use cannot be ignored. Whether in long-distance overhead transmission lines, in special environments with vertical installations, or in general wiring scenarios, this issue can seriously affect the performance and reliability of electrical wires. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this utility model provides a high-strength, tensile-resistant polyvinyl chloride (PVC) wire, which solves the problems mentioned in the background art, such as the wire being easily broken due to its own weight.

[0009] (II) Technical Solution

[0010] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a high-strength tensile-resistant polyvinyl chloride wire, comprising wire cores, multiple sets of wire cores being encased in an inner sheath, an insulation layer being provided on the outer side of the inner sheath, a tensile-resistant layer being provided outside the insulation layer, an outer sheath and an anti-corrosion layer being provided on the outer side of the tensile-resistant layer, and two sets of tensile-resistant reinforcing ribs being provided inside the outer sheath.

[0011] Preferably, the wire core is composed of multiple sets of copper cores aggregated together, and each copper core is plated with a metallic nickel plating layer.

[0012] Preferably, the tensile layer includes a constraint layer and multiple sets of tensile filler bundles. Multiple sets of filler holes along the wire direction are formed in the constraint layer, and tensile filler bundles are inserted into each set of filler holes.

[0013] Preferably, the tensile filler bundle is composed of multiple glass fiber filaments polymerized together.

[0014] Preferably, the constraint layer and the tensile layer are provided with two sets of clearance holes, and tensile reinforcing ribs are inserted into both sets of clearance holes.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a high-strength tensile-resistant polyvinyl chloride wire with the following characteristics:

[0017] Beneficial effects:

[0018] 1. This high-strength, tensile-resistant PVC wire has a tensile-resistant layer, which can significantly improve the tensile strength of the wire and prevent it from breaking due to its own weight.

[0019] 2. It is filled with glass fiber bundles, which are characterized by high temperature resistance and good insulation properties. These fibers can be filled into electrical wires to increase their mechanical strength and tensile strength, thus improving their tensile performance.

[0020] 3. It is equipped with tensile reinforcing ribs, which have strong mechanical properties and can withstand large tensile forces, giving the wire high tensile strength. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic cross-sectional view of the present invention;

[0023] Figure 3 This is a schematic diagram of the tensile layer and outer sheath structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the tensile filler bundle of this utility model.

[0025] In the diagram: 1. Core wire; 2. Inner sheath; 3. Insulation layer; 4. Tensile layer; 5. Outer sheath; 6. Anti-corrosion layer; 7. Constraint layer; 8. Filler hole; 9. Tensile filler bundle; 10. Clearance hole; 11. Tensile reinforcing rib. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 This utility model provides a technical solution:

[0028] A high-strength tensile-resistant polyvinyl chloride (PVC) wire includes a core 1, multiple cores 1 are wrapped inside an inner sheath 2, an insulation layer 3 is provided outside the inner sheath 2, a tensile-resistant layer 4 is provided outside the insulation layer 3, an outer sheath 5 and an anti-corrosion layer 6 are provided outside the tensile-resistant layer 4, and two sets of tensile-resistant reinforcing ribs 11 are provided inside the outer sheath 5.

[0029] Furthermore, core 1 is composed of multiple copper cores, each plated with a nickel plating layer. The nickel plating is applied using anodizing, with a thickness of 5-20 μm. This plating layer protects the copper wire from corrosion, extends its service life, and isolates it from oxygen, preventing oxidation. Oxidized copper wire has a significantly increased conductivity, resulting in a substantial decrease in electrical performance. Nickel plating improves the conductivity of the copper wire. Additionally, nickel has strong passivation capabilities, rapidly forming a very thin passivation film on its surface, resisting corrosion from the atmosphere, alkalis, and certain acids.

[0030] Furthermore, the tensile layer 4 includes a constraint layer 7 and multiple sets of tensile filler bundles 9. Multiple sets of filler holes 8 are formed in the constraint layer 7 along the wire direction, and tensile filler bundles 9 are inserted into each set of filler holes 8.

[0031] Furthermore, the tensile filler bundle 9 is composed of multiple polymerized glass fiber filaments. Glass fiber filaments are characterized by high temperature resistance and good insulation properties. They can be filled in gaps to increase the mechanical strength and tensile strength of the wire. Especially in wires that need to operate in high-temperature environments, glass fiber filaments can ensure the stability of the wire and prevent the filler material from failing due to high temperatures.

[0032] Furthermore, two sets of clearance holes 10 are provided on the constraint layer 7 and the tensile layer 4, and tensile reinforcing ribs 11 are inserted into both sets of clearance holes 10.

[0033] Working Principle: This invention begins with the innermost core, which is composed of multiple copper cores. Copper has excellent electrical conductivity, making it an ideal material for current transmission. A nickel plating layer is applied to the copper core using anodizing, with a thickness of 5-20 μm. The nickel plating layer serves multiple purposes: firstly, its relatively stable chemical properties prevent oxidation and corrosion of the copper core, extending the lifespan of the wire; secondly, it improves the wear resistance of the core, protecting it from damage during friction and ensuring stable current transmission. The multiple cores 1 are encased within an inner sheath 2, which provides initial insulation and protection. Its material typically possesses a certain degree of flexibility and insulation, ensuring effective protection of the cores during bending and use. An insulation layer 3 on the outer side of the inner sheath 2 further enhances the wire's insulation performance. It can withstand a certain voltage, preventing current leakage and ensuring user safety and the normal operation of surrounding equipment. The insulation layer 3 is typically made of materials with excellent insulation properties, such as polyvinyl chloride (PVC), whose good electrical insulation properties effectively prevent current leakage. The tensile layer 4 outside the insulation layer 3 is one of the key structures of the wire. The tensile layer 4 includes a constraint layer 7 and multiple sets of tensile filler bundles 9. Multiple sets of filling holes 8 are formed along the wire direction within the constraint layer 7, and tensile filler bundles 9 are inserted into each of these holes. The tensile filler bundles 9 are composed of multiple fiberglass filaments, which have high strength, high modulus, and high tensile strength, enabling them to withstand significant tensile forces. When the wire is subjected to tensile force, the tensile filler bundles 9 can bear most of the tensile force, preventing damage to the wire due to stretching. The constraint layer 7 serves to fix and constrain the tensile filler bundles 9, allowing them to work together to resist tensile forces under stress. Simultaneously, two sets of clearance holes 10 are also formed on the tensile layer 4, and tensile reinforcing ribs 11 are inserted into each of the clearance holes 10. The tensile reinforcing ribs 11 further enhance the tensile strength of the wire. Working in conjunction with the tensile filler bundles 9, they work together to significantly improve the overall tensile strength of the wire when subjected to significant tensile force. The outermost sheath 5 and the anti-corrosion layer 6 provide mechanical protection against external physical damage such as scratches and impacts. The sheath 5 protects the wire from corrosive gases or liquids, ensuring the internal structure remains uncorroded and maintaining its normal performance. This high-strength, tensile-resistant PVC wire achieves excellent conductivity, insulation, tensile strength, and corrosion resistance through the synergistic effect of its various structural layers and materials, providing a reliable guarantee for power transmission and the stable operation of electrical equipment.

[0034] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength, stretch-resistant, structural polyvinyl chloride electrical wire comprising a core (1), characterized in that: A plurality of the wire cores (1) are covered in an inner sheath (2), an insulation layer (3) is sleeved outside the inner sheath (2), a tensile-resistant layer (4) is arranged outside the insulation layer (3), an outer sheath (5) and a corrosion-resistant layer (6) are sleeved outside the tensile-resistant layer (4), and two groups of tensile-resistant reinforcing ribs (11) are arranged in the outer sheath (5).

2. A high strength, stretch resistant, structural polyvinyl chloride electrical wire according to claim 1, wherein: The wire core (1) is formed by polymerization of a plurality of copper cores, and a metal nickel plating layer is arranged on the copper core.

3. A high strength, stretch resistant, structural polyvinyl chloride electrical wire according to claim 1, wherein: The tensile-resistant layer (4) comprises a constraint layer (7) and a plurality of tensile-resistant filling bundles (9), a plurality of filling holes (8) in the wire direction are arranged in the constraint layer (7), and the tensile-resistant filling bundles (9) are inserted into the plurality of filling holes (8).

4. A high strength, stretch resistant, structural polyvinyl chloride electrical wire according to claim 3, wherein: The tensile-resistant filling bundle (9) is formed by polymerization of a plurality of glass fiber filaments.

5. A high strength, stretch resistant, structural polyvinyl chloride electrical wire according to claim 3, wherein: Two groups of avoiding holes (10) are arranged on the constraint layer (7) and the tensile-resistant layer (4), and the tensile-resistant reinforcing ribs (11) are inserted into the two groups of avoiding holes (10).

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