Stretch-resistant and fracture-resistant electric wire

Abstract

The utility model discloses an anti-stretching and anti-fracture wire comprising a central piece and a plurality of conductors, and the plurality of conductors are uniformly distributed on the outer side of the central piece. A reinforcing layer is arranged on the outer side of the conductors, a buffer layer is arranged on the outer side of the reinforcing layer, and an insulating layer is arranged on the outer side of the buffer layer; a reinforcing device is arranged at the insulating layer and comprises a plurality of reinforcing pieces, and the reinforcing pieces are uniformly distributed in the perimeter direction of the insulating layer; according to the utility model, the reinforcing device is arranged on the outer side of the conductor and at the insulating layer, so that the conductor is protected under the condition that the tensile resistance of the insulating layer is enhanced, and the probability that the conductor is broken due to a wire pull rope is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric wire, concretely is a kind of anti-stretching fracture electric wire. BACKGROUND

[0002] In industrial automation production line, a large number of motors, sensors and controllers are connected by electric wire.For example, the mechanical arm of automobile manufacturing workshop, in high speed, accurately carries out welding, paint spraying and assembly operation process, electric wire needs to stretch and bend constantly with mechanical arm.If electric wire is not anti-stretching, it is easy to break in frequent movement, causes signal transmission to be interrupted, makes mechanical arm stop working.This not only can cause the stagnation of production process, can also lead to the product being processed damage, bring huge economic loss.

[0003] For some continuous operation chemical production equipment, such as the heating device of reaction kettle, material conveying pump and the like, its power supply depends on electric wire.Once electric wire breaks, reaction process can be out of control, conveying pump stops working and leads to material plugging pipeline and other problems, even can cause dangerous chemical reaction.

[0004] In addition, the electric wire used in work and life is usually hidden in wall or ceiling, once breaking short circuit, can cause fire.Moreover, after the breakage of electric wire insulating layer, damage also can increase the risk of electric leakage, increases the possibility of electric shock of personnel.

[0005] From the above, electric wire for power transmission should have anti-stretching, anti-fracture ability.From the disclosed technology, at present, electric wire generally includes conductor, insulating layer, and the insulating layer is wrapped on the outer side of conductor.After electric wire laying, only conductor and insulating layer cooperate to play the role of anti-stretching, anti-fracture.And conductor is mostly copper or aluminum, and insulating layer is mostly rubber, and its anti-stretching ability is poor, when subjected to tensile force, stress is easy to concentrate on a certain point, once external force exceeds its yield strength, it is easy to break. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of anti-stretching fracture electric wire, to improve the problem that electric wire anti-stretching ability needs to be improved.

[0007] The utility model is realized as follows: a kind of anti-stretching fracture electric wire, including center piece and multiple conductors, multiple conductors are evenly distributed and set on the outer side of center piece;Reinforcing layer is arranged on the outer side of multiple conductors, buffer layer is arranged on the outer side of reinforcing layer, and insulating layer is arranged on the outer side of buffer layer;Reinforcing device is arranged at insulating layer, and reinforcing device includes multiple reinforcing pieces, and multiple reinforcing pieces are evenly distributed along the circumference direction of insulating layer.

[0008] Preferably, each of the reinforcing members is arranged along the length direction of the conductor; the reinforcing device further comprises a plurality of hoops, which are uniformly distributed along the length direction of the conductor and connected with the reinforcing members.

[0009] Preferably, the insulating layer is formed with annular grooves and strip grooves, the annular grooves are uniformly distributed along the length direction of the insulating layer, the hoops are arranged in the annular grooves, and the strip grooves are arranged along the length direction of the insulating layer, and the reinforcing members are arranged in the strip grooves.

[0010] Preferably, each of the conductors is arranged in a spiral structure, and the plurality of conductors are twisted and arranged outside the central member.

[0011] Preferably, the reinforcing layer is arranged in a mesh structure and is made of a fiber material.

[0012] Preferably, the buffer layer is made of a rubber material.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The utility model discloses a reinforcing device, which is arranged outside the conductor and at the insulating layer, realizes the protection of the conductor in the case of enhancing the tensile resistance of the insulating layer, and reduces the probability of conductor fracture caused by wire pulling.

[0015] 2. The utility model discloses a central member, which further enhances the tensile resistance of the wire and realizes the multiple protection of the conductor in cooperation with the reinforcing device, and further reduces the probability of conductor fracture caused by wire pulling.

[0016] 3. The utility model discloses a wear-resistant layer, which can improve the wear resistance and corrosion resistance of the wire in a complex environment, prevent the insulating layer and the internal structure from being abraded, prolong the service life of the wire, and indirectly improve the risk resistance of the wire to fracture caused by external abrasion. DRAWINGS

[0017] Figure 1 is the schematic view of the utility model;

[0018] Figure 2 is the structural schematic view of the insulating layer of the utility model;

[0019] Figure 3 is the structural schematic view of the reinforcing device of the utility model.

[0020] In the drawing: 1, central member; 2, conductor; 3, reinforcing layer; 4, buffer layer; 5, insulating layer; 51, annular groove; 52, strip groove; 6, wear-resistant layer; 7, reinforcing device; 71, hoop; 72, reinforcing member. DETAILED DESCRIPTION

[0021] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can be indirectly connected through the intermediate medium, can be the communication or the interaction of two elements of two elements inside.For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] The utility model will be further described below in conjunction with the drawings and specific embodiments:

[0023] In order to enhance the tensile resistance of the electric wire, the embodiment provides a new electric wire structure.

[0024] As Figure 1 The electric wire includes a center piece 1, a conductor 2, a reinforcing layer 3, a buffer layer 4, an insulating layer 5, a wear-resistant layer 6, a reinforcing device 7, etc. The conductor 2 is provided with multiple strands, each conductor 2 is provided in a spiral structure, and the multiple strands are twisted and connected. The pitch of the regular twist is uniform, and the stress can be well dispersed when the tension is applied. The multiple twisted conductors improve the tensile resistance to some extent, as the tension can be dispersed to each strand of filament, and the single solid conductor is less likely to break.

[0025] The center piece 1 is arranged on the inner side of the multiple conductors 2, and can be a high-tensile-strength device such as a wire. The center piece 1 enhances the tensile strength of the entire electric wire and reduces the probability of breaking under external force.

[0026] The reinforcing layer 3 is arranged on the outer side of the multiple conductors 2 and is provided in a mesh structure and made of fiber material. For example, the mesh structure is woven from high-strength aramid fiber. The aramid fiber has extremely high strength and modulus, and the mesh structure woven therefrom can effectively limit the displacement of the conductor during stretching, evenly distribute the tensile force to the entire conductor cross section, and greatly improve the tensile resistance of the electric wire. At the same time, the aramid fiber is bonded between the insulating layer and the conductor using a special adhesive to ensure that delamination does not occur during long-term use.

[0027] The buffer layer 4 is arranged on the outer side of the reinforcing layer 3 and is made of rubber material with buffering performance, such as nitrile rubber. When the electric wire is subjected to a large instantaneous tensile force or repeated stretching, the buffer layer can absorb and disperse part of the energy, reducing the impact on the conductor and the insulating layer, playing a protective role, and further improving the tensile resistance and durability of the electric wire.

[0028] The insulation layer 5, located outside the buffer layer 4, is made of a high-strength, highly elastic insulating material, such as a blend of silicone rubber and polyurethane. This blend combines the excellent insulation, weather resistance, and heat resistance of silicone rubber with the high elasticity and strength of polyurethane. This ensures excellent insulation performance during wire stretching and deformation, effectively preventing problems such as short circuits caused by insulation layer rupture.

[0029] Wear-resistant layer 6, located outside insulating layer 5 and made of polyvinyl chloride (PVC) or polyethylene (PE), enhances the wire's wear and corrosion resistance in challenging environments. In environments such as construction sites and industrial plants, where wires may rub against the ground, walls, or other equipment, the wear-resistant protective layer prevents wear and tear on the insulation and internal structure, extending the wire's service life and indirectly increasing its resistance to breakage due to external wear.

[0030] like Figure 2 、 Figure 3 As shown, the reinforcement device 7 is disposed on the insulating layer 5 and includes multiple reinforcement members 72, multiple hoops 71, and the like. Each reinforcement member 72 is disposed along the length of the conductor 2, and the multiple reinforcement members 72 are evenly distributed along the circumference of the insulating layer 5. The multiple hoops 71 are evenly distributed along the length of the conductor 2 and connected to the multiple reinforcement members 72. Furthermore, the reinforcement members 72 and hoops 71 can be made of high-tensile-strength materials such as iron wire. Therefore, the reinforcement device 7 increases the tensile strength of the insulating layer 5, preventing the insulating layer 5 from breaking under external forces and providing additional protection for the conductor 2.

[0031] During wire production, the reinforcing element 7 is placed over the outside of the buffer layer 4 and, along with the conductor 2, enters the insulation layer 5 extrusion equipment. Under the action of the basic equipment, the insulation layer 5 is covered with the reinforcing element 7. At this point, the insulation layer 5 is formed with annular grooves 51 and strip grooves 52. The annular grooves 51 are evenly distributed along the length of the insulation layer 5. The hoop 71 is located within the annular grooves 51. The strip grooves 52 are arranged along the length of the insulation layer 5. The reinforcing element 72 is located within the strip grooves 52.

[0032] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A tensile strength kink resistant electrical cord, characterized by, The center piece (1) and a plurality of conductors (2) are included, the plurality of conductors (2) are uniformly distributed on the outside of the center piece (1); an enhancement layer (3) is arranged on the outside of the plurality of conductors (2), a buffer layer (4) is arranged on the outside of the enhancement layer (3), and an insulation layer (5) is arranged on the outside of the buffer layer (4); an enhancement device (7) is arranged at the insulation layer (5), and the enhancement device (7) includes a plurality of enhancement members (72), and the plurality of enhancement members (72) are uniformly distributed along the circumferential direction of the insulation layer (5).

2. A tensile strength kink resistant electrical cord according to claim 1, wherein, Each of the enhancement members (72) is arranged along the length direction of the conductor (2); the enhancement device (7) further includes a plurality of hoops (71), the plurality of hoops (71) are uniformly distributed along the length direction of the conductor (2) and are connected with the plurality of enhancement members (72).

3. A tensile strength kink resistant electrical cord according to claim 2, wherein, The insulation layer (5) is formed with a ring groove (51) and a strip-shaped groove (52), the plurality of ring grooves (51) are uniformly distributed along the length direction of the insulation layer (5), the hoop (71) is located in the ring groove (51), and the strip-shaped groove (52) is arranged along the length direction of the insulation layer (5), and the enhancement member (72) is located in the strip-shaped groove (52).

4. The tensile strength, kink-resistant electrical wire of claim 1, wherein, Each of the conductors (2) is arranged in a spiral structure, and the plurality of conductors (2) are twisted and arranged on the outside of the center piece (1).

5. A tensile strength kink resistant electrical cord in accordance with claim 1, wherein, The enhancement layer (3) is arranged in a mesh structure and is made of fiber material.

6. A tensile strength kink resistant electrical cord in accordance with claim 1, wherein, The buffer layer (4) is made of rubber material.

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