A wear-resistant and tensile-resistant cable

Abstract

The present application relates to a wear-resistant and tensile-resistant cable, which relates to the technical field of electric wires, and comprises an insulating layer and a plurality of core wires inside the insulating layer; the inner side surface of the insulating layer is provided with a plurality of anti-breaking wires twisted with the core wires; due to the installation arrangement of the anti-breaking wires, the present application can effectively increase the bearing capacity of the cable when subjected to tension during the application of the cable, and reduce the risk of the core wire being broken due to improper pulling force during wiring or use, thereby protecting the integrity of the cable structure and ensuring the normal use of the cable.

Description

Technical Field

[0001] The present application relates to the technical field of electric wires, and in particular to a wear-resistant and tensile-resistant cable. Background Art

[0002] Cable is a general term for optical cables, electrical cables and other items. Cables have many uses, mainly used for control installation, connecting equipment, transmitting electricity and other multiple functions. They are common and indispensable in daily life. Because cables are charged, they need to be installed with special care.

[0003] In the related art, the cable includes a rubber insulation layer and a plurality of conductive wires located inside the rubber insulation layer. During power construction, a large number of wires are used for wiring operations.

[0004] When laying cables, construction workers will pull the cables. Due to the complexity of the laying, erection and use environment of power cables, if the construction workers operate improperly or exceed the cable's bearing capacity, such as overloading the cable when the cable is stretched to its length, it may cause cracks in the cable. In severe cases, it may also cause the cable to break. Once the cable is damaged, it needs to be repaired and replaced, which will affect the progress of power construction. There is room for improvement. Utility Model Content

[0005] The purpose of this application is to provide a wear-resistant and tensile-resistant cable to solve the problem that cracks or even breakages may occur in the cable during the wiring process, which may affect the progress of power construction.

[0006] The present application provides a wear-resistant and tensile-resistant cable adopting the following technical solution:

[0007] A wear-resistant and tensile-resistant cable comprises an insulating layer and a plurality of core wires inside the insulating layer; the inner side surface of the insulating layer is provided with a plurality of anti-breaking wires twisted with the core wires.

[0008] By adopting the above technical solution, the cable's ability to withstand tension can be effectively increased, and the risk of core wire breakage due to improper pulling force during wiring or use can be reduced, thereby protecting the integrity of the cable structure and ensuring the normal use of the cable.

[0009] Optionally, a shielding layer is provided on the inner side surface of the insulating layer, and the shielding layer is sleeved on the outer peripheral surface of the plurality of core wires and the anti-breaking wire.

[0010] By adopting the above technical solution, the shielding layer can effectively shield the magnetic field generated by these cables inside the cable, protecting the surrounding components from electromagnetic interference; if the core wire of the cable is damaged, the leaked current can flow into the grounding grid along the shielding layer, thereby playing a protective role and preventing safety hazards caused by current leakage.

[0011] Optionally, a plurality of marking convex rings are evenly distributed on the outer circumference of the insulating layer.

[0012] By adopting the above technical solution, due to the setting of the marking convex ring, the cable is easier to identify and locate during the laying, installation and maintenance of the cable; especially in complex cable systems, these marking convex rings can help workers quickly and accurately find specific cable segments, thereby improving work efficiency.

[0013] Optionally, the outer side surface of the marking convex ring is a curved surface.

[0014] By adopting the above technical solution, the arc surface design can reduce the direct contact area between the marking convex ring and the surrounding objects, thereby reducing friction, which helps to reduce the wear of the marking convex ring during the movement, laying and installation of the cable and extend the service life of the cable.

[0015] Optionally, a plurality of first reinforcing steel wires are embedded inside the insulating layer.

[0016] By adopting the above technical solution, due to the arrangement of the first reinforcing steel wire in the insulating layer, the structural strength of the insulating layer is improved, and the possibility of deformation or even breakage of the insulating layer during the application of the cable is reduced.

[0017] Optionally, a spiral wire protection sleeve is provided on the outer circumference of the insulating layer, and a second reinforcing steel wire is embedded in the spiral wire protection sleeve.

[0018] By adopting the above technical solution, the spiral wire sheath provides additional physical protection for the cable, which can reduce the damage to the cable caused by external mechanical damage, shearing or pulling; and by embedding a second reinforcing steel wire inside the spiral wire sheath, the structural strength of the spiral wire sheath is further improved, thereby extending the service life of the bolt wire sheath.

[0019] Optionally, a limiting convex strip is provided on the inner wall of the spiral wire protection sleeve, and the outer side surface of the limiting convex strip is a curved surface.

[0020] By adopting the above technical solution, the limiting convex strip forms a certain distance between the cable and the inner wall of the cable sheath, and because the outer side surface of the limiting convex strip is an arc surface, the direct contact area between the cable and the cable sheath is further reduced, which helps to reduce the friction coefficient and reduce wear, thereby extending the service life of the cable and the cable sheath.

[0021] Optionally, a plurality of anti-slip grooves are provided on the outer peripheral surface of the limiting convex strip.

[0022] By adopting the above technical solution, due to the setting of the anti-skid groove on the surface of the limiting convex strip, the spiral cable sheath can adapt to cables with different surface materials. Whether it is a cable with a smooth surface or a rough surface, the anti-skid groove can provide sufficient friction to ensure stable fixation of the cable.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Due to the installation setting of the anti-breaking wire, during the application of the cable, it can effectively increase the cable's ability to withstand tension, reduce the risk of core wire breakage due to improper pulling force during wiring or use, thereby protecting the integrity of the cable structure and ensuring the normal use of the cable.

[0025] 2. Due to the setting of the shielding layer, the shielding layer can effectively shield the magnetic field generated by these cables inside the cable, protecting the surrounding components from electromagnetic interference; if the core wire of the cable is damaged, the leaked current can flow into the grounding grid along the shielding layer, thereby playing a protective role and preventing safety hazards caused by current leakage.

[0026] 3. Due to the installation setting of the spiral wire sheath, the spiral wire sheath provides additional physical protection for the cable, which can reduce the damage to the cable caused by external mechanical damage, shearing or pulling; and by embedding a second reinforcing steel wire inside the spiral wire sheath, the structural strength of the spiral wire sheath is further improved, thereby extending the service life of the bolt wire sheath. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0029] Figure 2 is a schematic cross-sectional structural diagram of Example 1 of the present application;

[0030] Figure 3 It is a schematic diagram of the overall structure of Example 2 of the present application;

[0031] Figure 4 This is a schematic diagram of the overall structure of Example 2 of the present application, which embodies the distribution of the marking convex rings on the insulating layer;

[0032] Figure 5 yes Figure 4 A partial enlarged schematic diagram of part A;

[0033] Figure 6 It is a partial structural schematic diagram of the installation and matching of the spiral cable sheath in Example 2 of the present application;

[0034] Figure 7 It is a schematic diagram of the local structure of the installation cooperation between the second reinforcing steel wire and the limiting convex ring according to Example 2 of the present application.

[0035] In the figure, 1, insulating layer; 11, marking convex ring; 12, first reinforcing steel wire; 2, core wire; 3, anti-breaking wire; 4, shielding layer; 5, spiral wire sheath; 51, second reinforcing steel wire; 52, limiting convex strip; 521, anti-slip groove. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0037] Embodiment 1:

[0038] Reference Figure 1 and Figure 2 A wear-resistant and tensile-resistant cable comprises an insulating layer 1 and four core wires 2 inside the insulating layer 1; wherein the insulating layer 1 is made of polytetrafluoroethylene and has good wear resistance, aging resistance and insulation performance, and the structure of the core wire 2 is a copper wire and a rubber insulating sleeve wrapped around the outside of the copper wire.

[0039] Reference Figure 1 and Figure 2 The inner side of the insulating layer 1 is provided with a plurality of anti-breaking wires 3 twisted with the core wires 2, wherein the anti-breaking wires 3 are made of polyester fiber, which has good tensile strength and corrosion resistance, thereby improving the tensile performance of the cable. The inner side of the insulating layer 1 is provided with a shielding layer 4, which is sleeved on the outer peripheral surface of the four core wires 2 and the anti-breaking wires 3, wherein the shielding layer 4 is wrapped with a metal mesh braided layer, and the main material is copper or aluminum. This braided shielding layer 4 can effectively reduce the influence of the electromagnetic field on the power supply or communication line, and prevent the line from radiating electromagnetic energy outward.

[0040] The implementation principle of the embodiment of the present application is:

[0041] During the application of the cable, the anti-breaking wire 3 is provided to improve the tensile strength of the cable, and the shielding layer 4 is provided to reduce the influence of the electromagnetic field on the power supply or communication line.

[0042] Embodiment 2:

[0043] Reference Figure 3 and Figure 4 The difference between the embodiment of the present application and the embodiment 1 is that a plurality of marking convex rings 11 are evenly distributed on the outer periphery of the insulating layer 1, wherein the insulating layer 1 and the marking convex rings 11 are integrally injection molded; the marking convex rings 11 are used as a physical mark, making it easier to identify and locate the cable during laying, installation and maintenance. Especially in a complex cable system, these marking convex rings 11 can help the staff to quickly and accurately find a specific cable segment, thereby improving work efficiency;

[0044] The outer side surface of the marking convex ring 11 is an arc surface, and the arc length corresponding to the arc surface cross section is a minor arc; the arc surface design can reduce the direct contact area between the marking convex ring 11 and the surrounding objects, thereby reducing friction, which helps to reduce the wear of the marking convex ring 11 during the movement, laying and installation of the cable and extend the service life of the cable.

[0045] Reference Figure 4 and Figure 5 A plurality of first reinforcing steel wires 12 are evenly embedded inside the insulating layer 1, wherein the length direction of the first reinforcing steel wires 12 is parallel to the length direction of the insulating layer 1; thereby improving the structural strength of the insulating layer 1 and reducing the possibility of deformation or even breakage of the insulating layer 1 during cable application.

[0046] Reference Figure 6 and Figure 7 The outer circumference of the insulating layer 1 is sheathed with a spiral wire sheath 5, wherein the spiral wire sheath 5 is made of polyethylene, a second reinforcing steel wire 51 is embedded in the spiral wire sheath 5, a limiting convex strip 52 is fixedly arranged on the inner wall of the spiral wire sheath 5, and the outer side surface of the limiting convex strip 52 is an arc surface, and the arc length corresponding to the arc surface cross section is an inferior arc; a plurality of anti-skid grooves 521 are provided on the outer circumference of the limiting convex strip 52, and the length direction of the anti-skid groove 521 is parallel to the length direction of the limiting convex strip 52;

[0047] The spiral sheath 5 provides additional physical protection for the cable, and can reduce damage to the cable caused by external mechanical damage, shearing or pulling, etc.; the limiting convex strip 52 forms a certain distance between the cable and the inner wall of the spiral sheath 5, reducing the direct contact area between the cable and the spiral sheath 5. The design of the anti-skid groove 521 enables the spiral sheath 5 to adapt to cables with different surface materials. Whether it is a cable with a smooth surface or a rough surface, the anti-skid groove 521 can provide sufficient friction to ensure the stable fixation of the cable.

[0048] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0049] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wear-resistant and tensile-resistant cable, comprising an insulating layer (1) and a plurality of core wires (2) inside the insulating layer (1); characterized in that: The inner side surface of the insulating layer (1) is provided with a plurality of anti-breaking wires (3) twisted with the core wire (2); The outer circumference of the insulating layer (1) is covered with a spiral wire protection sleeve (5), and a second reinforcing steel wire (51) is embedded in the interior of the spiral wire protection sleeve (5); a limiting convex strip (52) is provided on the inner wall of the spiral wire protection sleeve (5), and the outer side surface of the limiting convex strip (52) is an arc surface; and a plurality of anti-slip grooves (521) are provided on the outer circumference of the limiting convex strip (52).

2. A wear-resistant and tensile-resistant cable according to claim 1, characterized in that: A shielding layer (4) is provided on the inner side surface of the insulating layer (1), and the shielding layer (4) is sleeved on the outer peripheral surface of a plurality of core wires (2) and the anti-break wire (3).

3. A wear-resistant and tensile-resistant cable according to claim 1, characterized in that: A plurality of marking convex rings (11) are evenly distributed on the outer periphery of the insulating layer (1).

4. A wear-resistant and tensile-resistant cable according to claim 3, characterized in that: The outer side surface of the marking convex ring (11) is a cambered surface.

5. The wear-resistant and tensile-resistant cable according to claim 1, characterized in that: A plurality of first reinforcing steel wires (12) are embedded inside the insulating layer (1).

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