Anti-dragging cable

Abstract

The utility model discloses an anti-dragging cable, and specifically relates to the technical field of cables, the cable comprises a cable main body, the outer wall of the cable main body is wrapped with a tensile layer 1, the outer wall of the tensile layer 1 is wrapped with a shielding layer, the outer wall of the shielding layer is wrapped with a tensile layer 2, the tensile layer 1 comprises a fiber film, and the fiber film comprises a fiber film. A plurality of tensile rib lines are arranged in the fiber film and are distributed in an annular array by taking the wire core as the center, and the tensile layer II comprises a polyurethane film. The first tensile layer and the second tensile layer are arranged on the outer side of the cable body, the first tensile layer is composed of the fiber film and the tensile rib lines, the fiber film is formed by weaving the aramid fibers and the nylon fibers, the strength is high, the tensile performance is good, and therefore the dragging resistance of the cable body can be improved, the second tensile layer is composed of the polyurethane film, the two annular plates and the reinforcing ribs, and the tensile strength is good. And the outermost layer of the cable main body can have wear-resistant and tensile effects, so that the dragging resistance of the cable main body is further improved.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and more specifically to an anti-drag cable. Background Technology

[0002] As one of the largest supporting industries in the national economy, power cables are an indispensable component of power transmission and transformation equipment systems, forming the foundation of various industries. They are widely used in large power plants and transmission lines, as well as in airports, subways, river crossings, and sea crossings. With the continuous development of urbanization in my country, urban electricity consumption and power quality have been continuously improving, leading to the rapid development of cable transmission networks. Existing cables are typically rope-like cables composed of several or several groups of conductors (each group containing at least two conductors) twisted together. Each group of conductors is insulated from each other and is often twisted around a central core, with the entire cable covered by a highly insulating outer layer. They can also be defined as conductors made of one or more mutually insulated conductors and an outer insulating protective layer, used to transmit electricity or information from one place to another.

[0003] Currently, by adding various functional materials to cables, it is possible to give them the same functions. For example, a cable with prior art publication number CN220796310U has a core comprising a conductor, a conductor shielding layer, a first insulation layer, and an insulation shielding layer. The first sheath, with its double-layer structure, not only improves the cable's insulation performance but also its fire resistance, thereby significantly enhancing the cable's operational stability. Furthermore, even if the cable catches fire, the flame-retardant layer, made of low-smoke halogen-free flame-retardant polyolefin material, will not produce large amounts of smoke or toxic gases during combustion, thus greatly improving the cable's environmental friendliness.

[0004] However, the existing technology has the following problems in use: During cable laying, construction workers often need to adjust the position of the cable according to the laying requirements. During this period, dragging the cable is an unavoidable operation. However, traditional cables have low drag resistance and are prone to breakage due to insufficient tension during construction, and even more serious core breakage may occur. Based on this, this utility model provides a cable with high drag resistance. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides an anti-drag cable. It comprises a first tensile layer and a second tensile layer on the outer side of the cable body. The first tensile layer consists of a fiber membrane and tensile reinforcing wires. The fiber membrane is woven from aramid and nylon fibers, exhibiting high strength and good tensile properties, thereby improving the cable body's anti-drag resistance. The second tensile layer consists of a polyurethane membrane, two ring plates, and multiple reinforcing ribs, providing wear resistance and tensile strength at the outermost layer of the cable body, further enhancing its anti-drag resistance and thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-drag cable, comprising a cable body, the outer wall of which is wrapped with a first tensile layer, the outer wall of which is wrapped with a shielding layer, and the outer wall of which is wrapped with a second tensile layer. The first tensile layer comprises a fiber membrane, and the fiber membrane contains a plurality of tensile ribs arranged in a ring array around the core. The second tensile layer comprises a polyurethane membrane, and each end of the polyurethane membrane has two ring plates, and a plurality of reinforcing ribs arranged in a linear array are connected between the two ring plates.

[0007] In a preferred embodiment, the cable body includes a conductor and an insulation layer wrapped around the outside of the conductor. The insulation layer includes a thermoplastic elastomer film disposed between the conductor and a plurality of tensile reinforcing wires.

[0008] In a preferred embodiment, the shielding layer includes a shielding mesh disposed between the fiber membrane and the polyurethane membrane, the shielding mesh being woven from multiple tin-plated copper wires using a warp knitting machine.

[0009] In a preferred embodiment, the fiber membrane is woven from multiple transverse braided filaments and multiple longitudinal braided filaments using a warp knitting machine, wherein the transverse braided filaments are aramid fibers and the longitudinal braided filaments are nylon fibers.

[0010] In a preferred embodiment, the outer walls at both ends of the polyurethane membrane are machined with annular grooves adapted to the ring plate, and the outer walls of the polyurethane membrane are machined with rectangular grooves of the same number as the reinforcing ribs, and the rectangular grooves are connected to the annular grooves.

[0011] In a preferred embodiment, each reinforcing rib has an outer wall machined with a mounting groove adapted to the ring plate, the ring plate being fitted into multiple mounting grooves and detachably connected to the reinforcing rib.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model provides a first tensile layer and a second tensile layer on the outer side of the cable body. The first tensile layer consists of a fiber membrane and tensile reinforcement wires. The fiber membrane is woven from aramid fiber and nylon fiber, which has high strength and good tensile properties, thereby improving the drag resistance of the cable body. The second tensile layer consists of a polyurethane membrane, two ring plates and multiple reinforcing ribs, which can play a wear-resistant and tensile role on the outermost layer of the cable body, further improving the drag resistance of the cable body.

[0014] 2. By setting multiple reinforcing ribs on the outer wall of the polyurethane membrane, the cable body's resistance to dragging and deformation can be improved. At the same time, the ring plates at both ends facilitate the use of dragging the cable body.

[0015] 3. By installing a shielding mesh on the cable body, the shielding mesh is made of tinned copper wire. When the shielding mesh passes through a changing magnetic field, the tinned copper wire will generate an induced electromotive force, which will then form eddy currents in the shielding mesh. The eddy currents will generate a magnetic field opposite to the original electromagnetic field, thereby canceling or weakening the influence of the original electromagnetic field and playing a shielding role. This can enhance the anti-interference ability of the cable body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a structural diagram of the ring plate and reinforcing ribs of this utility model;

[0018] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 4 for Figure 3 Top view;

[0020] Figure 5 This is a structural diagram of the fiber membrane of this utility model.

[0021] The attached diagram is labeled as follows: 1. Cable body; 11. Insulation layer; 12. Insulation layer; 121. Thermoplastic elastomer film; 2. Tensile layer one; 21. Fiber film; 211. Transverse braided filament; 212. Longitudinal braided filament; 22. Tensile reinforcement wire;

[0022] 3. Shielding layer; 31. Shielding mesh; 4. Tensile layer II; 41. Polyurethane film; 42. Ring plate; 43. Reinforcing rib; 44. Annular groove; 45. Rectangular groove; 46. Mounting groove. Detailed Implementation

[0023] 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.

[0024] Refer to the instruction manual appendix Figure 1-5 This utility model provides an anti-drag cable, including a cable body 1. The cable body 1 includes a conductor 11 and an insulation layer 12 wrapped around the conductor 11. The insulation layer 12 includes a thermoplastic elastomer film 121, which is disposed between the conductor 11 and a plurality of tensile reinforcement wires 22. Then, a tensile layer 1 2 is wrapped around the outer wall of the thermoplastic elastomer film 121. A shielding layer 3 is wrapped around the outer wall of the tensile layer 1 2, and a tensile layer 2 4 is wrapped around the outer wall of the shielding layer 3. The tensile layer 1 2 includes a fiber membrane 21, which is woven by a warp knitting machine from a plurality of transverse braided filaments 211 and a plurality of longitudinal braided filaments 212. The transverse braided filaments 211 are aramid fibers, and the longitudinal braided filaments 212 are nylon fibers. A plurality of tensile reinforcement wires 22 are provided inside the fiber membrane 21, and the plurality of tensile reinforcement wires 22 are distributed in a ring array with the conductor 11 as the center.

[0025] The second tensile layer 4 includes a polyurethane membrane 41, with two annular plates 42 at both ends of the polyurethane membrane 41. Multiple reinforcing ribs 43 arranged in a linear array are connected between the two annular plates 42. Furthermore, annular grooves 44 adapted to the annular plates 42 are machined on the outer walls of both ends of the polyurethane membrane 41. Rectangular grooves 45, the same number as the reinforcing ribs 43, are machined on the outer walls of the polyurethane membrane 41, and these rectangular grooves 45 communicate with the annular grooves 44.

[0026] Furthermore, each reinforcing rib 43 has an installation groove 46 on its outer wall that is compatible with the ring plate 42. The ring plate 42 is fitted into multiple installation grooves 46 and is detachably connected to the reinforcing rib 43 by bolts, which facilitates the removal and replacement of the ring plate 42.

[0027] Tensile layer 1 2 and tensile layer 2 4 are provided on the outside of the cable body 1 to improve the drag resistance of the cable body 1. Tensile layer 1 2 is composed of a fiber membrane 21 and multiple tensile reinforcing wires 22. The fiber membrane 21 is woven from aramid fiber and nylon fiber. Aramid fiber has excellent properties such as ultra-high strength, high temperature resistance, acid and alkali resistance, light weight, insulation, and anti-aging. Nylon fiber has high elastic recovery rate and high fracture strength. When used with tensile reinforcing wires 22, it can improve the drag resistance of the cable body 1. Tensile layer 2 4 is composed of a polyurethane membrane 41, two ring plates 42 and multiple reinforcing ribs 43. The polyurethane membrane 41 has excellent wear resistance, elasticity, flexibility and strength, so it can play a wear-resistant and tensile role on the outermost layer of the cable body 1, which can further improve the drag resistance of the cable body 1.

[0028] In this embodiment, the shielding layer 3 includes a shielding mesh 31, which is disposed between the fiber membrane 21 and the polyurethane membrane 41. The shielding mesh 31 is woven from multiple tin-plated copper wires by a warp knitting machine. When the shielding mesh 31 passes through a changing magnetic field, the tin-plated copper wires generate an induced electromotive force, which in turn forms an induced current, i.e., eddy current, in the shielding mesh 31. These eddy currents generate a magnetic field opposite to the original electromagnetic field, thereby canceling or weakening the influence of the original electromagnetic field and playing a shielding role, thereby enhancing the anti-interference ability of the cable body 1.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drag-resistant cable, comprising a cable body (1), characterized in that: The outer wall of the cable body (1) is wrapped with a tensile layer one (2), the outer wall of the tensile layer one (2) is wrapped with a shielding layer (3), and the outer wall of the shielding layer (3) is wrapped with a tensile layer two (4); The tensile layer 1 (2) includes a fiber membrane (21), and the fiber membrane (21) is provided with a plurality of tensile reinforcing lines (22) inside, and the plurality of tensile reinforcing lines (22) are arranged in a ring array with the core (11) as the center; The second tensile layer (4) includes a polyurethane membrane (41), and two ring plates (42) are provided at both ends of the polyurethane membrane (41). Multiple reinforcing ribs (43) arranged in a linear array are connected between the two ring plates (42).

2. The anti-drag cable according to claim 1, characterized in that: The cable body (1) includes a conductor (11) and an insulation layer (12) wrapped around the outside of the conductor (11). The insulation layer (12) includes a thermoplastic elastomer film (121) disposed between the conductor (11) and a plurality of tensile reinforcing wires (22).

3. The anti-drag cable according to claim 1, characterized in that: The shielding layer (3) includes a shielding mesh (31), which is disposed between the fiber membrane (21) and the polyurethane membrane (41). The shielding mesh (31) is woven from multiple tin-plated copper wires by a warp knitting machine.

4. The anti-drag cable according to claim 1, characterized in that: The fiber membrane (21) is made by weaving multiple transverse braided filaments (211) and multiple longitudinal braided filaments (212) using a warp knitting machine. The transverse braided filaments (211) are aramid fibers, and the longitudinal braided filaments (212) are nylon fibers.

5. The anti-drag cable according to claim 1, characterized in that: Both ends of the polyurethane membrane (41) are machined with annular grooves (44) that are compatible with the ring plate (42). The outer wall of the polyurethane membrane (41) is machined with rectangular grooves (45) in the same number as the reinforcing ribs (43), and the rectangular grooves (45) are connected to the annular grooves (44).

6. The anti-drag cable according to claim 5, characterized in that: Each reinforcing rib (43) has an installation groove (46) on its outer wall that is compatible with the ring plate (42). The ring plate (42) is fitted into multiple installation grooves (46) and is detachably connected to the reinforcing rib (43).

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