Abrasion-resistant cable provided with a bending-resistant structure

Abstract

The utility model relates to a cable field especially is provided with wear -resisting type cable of anti -bending structure, including conductor unit, anti -bending reinforcing layer includes many elastic reinforcing bars, and elastic reinforcing bar is spirally wound and is arranged at the outside of insulating layer, and the outside of elastic reinforcing bar is provided with support, and the outside of support is corrugated structure, and the corrugated direction is perpendicular with cable axial direction, and elastic reinforcing bar is embedded in the inside of support, the utility model has the advantages that: through setting up the bending -resistant elasticity layer between insulating layer and buffer filling layer, the tenacity and strength of cable have been improved, have the good effect of anti -tension, high -pressure resistance and bending -resistant, and the spiral elastic reinforcing bar absorbs more than 80% bending stress through the superelastic deformation of nickel -titanium alloy, and the wave crest wave trough structure of corrugated support occurs elastic compression, stretching, forms axial displacement compensation, so that the cable strength improves.

Description

Technical Field

[0001] This utility model relates to the field of cables, and in particular to a wear-resistant cable with an anti-bending structure. Background Technology

[0002] A cable is a device for transmitting electrical energy or signals, usually composed of several or several groups of conductors. With the rapid development of the communications industry over the past two decades, cable products have also developed at an astonishing pace, evolving from simple telephone and telegraph cables to multi-pair telephone cables, coaxial cables, optical cables, data cables, and even composite communication cables. The applications of cables are becoming more and more widespread, and the environments in which they operate are becoming more and more complex and diverse.

[0003] When workers are laying cables, they can easily scratch the outer sheath during the laying process. During the use of the cable, it is easy to be bent and pulled at will, which can easily cause the core to break, thus leaving safety hazards and causing accidents. At the same time, due to the poor resilience of the cable, when the cable is bent or squeezed, the bending and squeezing points are prone to deformation and damage, which in turn affects the service life of the cable. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model provides a technical solution that can solve the above problems.

[0005] A wear-resistant cable with an anti-bending structure includes a conductor unit; An insulating layer is provided on the outside of the conductor unit, an anti-bending reinforcement layer is provided on the outside of the insulating layer, a buffer filling layer is provided on the outside of the anti-bending reinforcement layer, a shielding layer is provided on the outside of the buffer filling layer, and a wear-resistant outer sheath is provided on the outside of the shielding layer. The bending-resistant reinforcement layer includes multiple elastic reinforcing ribs, which are spirally wound on the outside of the insulation layer. A support body is provided on the outside of the elastic reinforcing ribs, and the outside of the support body has a corrugated structure with the corrugation direction perpendicular to the cable axis. The elastic reinforcing ribs are embedded in the inside of the support body.

[0006] As a further embodiment of this utility model: the wear-resistant outer sheath includes an elastomer disposed on the outer layer of the shielding layer, the interior of the elastomer is uniformly provided with a plurality of hollow glass microspheres, and the outer side of the elastomer is coated with a tungsten carbide wear-resistant coating by plasma spraying.

[0007] As a further embodiment of this utility model: the elastic reinforcing rib is made of nickel-titanium memory alloy wire and aramid fiber composite twisted together, and is evenly wound around the outside of the insulation layer at a helical angle of 30°-45°.

[0008] As a further embodiment of this invention: the conductor unit is made of multiple strands of silver-plated copper wire bundles twisted together, and each strand of silver-plated copper wire bundle is wrapped with a graphene-modified polyimide film.

[0009] As a further embodiment of this utility model: the insulating layer has a three-layer co-extruded structure, with the inner layer being silicone rubber, the middle layer being nano-alumina reinforced ethylene propylene rubber, and the outer layer being fluororubber.

[0010] As a further embodiment of this invention, the shielding layer is made of a mixed woven mesh of tin-plated copper wire and carbon fiber.

[0011] As a further embodiment of this invention, the buffer filling layer is made of low-density polyethylene foam.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a bending-resistant elastic layer between the insulation layer and the buffer filling layer, the toughness and strength of the cable are improved, and it has good tensile strength, high voltage resistance and bending resistance. The spiral elastic reinforcing rib absorbs more than 80% of the bending stress through the superelastic deformation of the nickel-titanium alloy. At the same time, the crest and trough structure of the corrugated support undergoes elastic compression and tension, forming axial displacement compensation, which improves the cable strength and enhances the cable's resilience. It buffers external extrusion and bending forces, effectively prevents internal damage to the cable, improves the cable's service life, and thus improves the cable's safety.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this embodiment or the prior art, the drawings used in the description of the embodiment or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Fig. 1 This is a schematic diagram of the structure of this utility model.

[0016] Fig. 2 This is a schematic diagram of the structure of the elastic reinforcing rib.

[0017] The figure shows: 1. Conductor unit; 2. Insulation layer; 3. Bending resistance reinforcement layer; 31. Elastic reinforcing rib; 32. Support body; 4. Buffer filling layer; 5. Shielding layer; 6. Wear-resistant outer sheath; 61. Elastomer; 62. Hollow glass microspheres; 63. Wear-resistant coating. Detailed Implementation

[0018] 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.

[0019] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] Please see Figs. 1-2 A wear-resistant cable with an anti-bending structure includes a conductor unit 1; An insulating layer 2 is provided on the outside of the conductor unit 1, an anti-bending reinforcement layer 3 is provided on the outside of the insulating layer 2, a buffer filling layer 4 is provided on the outside of the anti-bending reinforcement layer 3, a shielding layer 5 is provided on the outside of the buffer filling layer 4, and a wear-resistant outer sheath 6 is provided on the outside of the shielding layer 5. The bending-resistant reinforcing layer 3 includes multiple elastic reinforcing ribs 31. The elastic reinforcing ribs 31 are spirally wound on the outside of the insulation layer 2. A support body 32 is provided on the outside of the elastic reinforcing ribs 31. The outside of the support body 32 has a corrugated structure, and the corrugation direction is perpendicular to the cable axis. The elastic reinforcing ribs 31 are embedded in the inside of the support body 32.

[0023] The spiral elastic reinforcing rib 31 can absorb more than 80% of the bending stress through superelastic deformation. At the same time, the crest and trough structure of the corrugated support 32 undergoes elastic compression and tension, forming axial displacement compensation, which improves the cable strength and enhances the cable's resilience.

[0024] A further solution: The wear-resistant outer sheath 6 includes an elastomer 61 disposed on the outer layer of the shielding layer 5. Multiple hollow glass microspheres 62 are uniformly disposed inside the elastomer 61, and the outer side of the elastomer 61 is coated with a tungsten carbide wear-resistant coating 63 by plasma spraying.

[0025] The elastomer 61 of the hollow glass microspheres 62 can reduce the transmission of external impact force to the internal structure, the tungsten carbide wear-resistant coating 63 resists abrasion from sand and gravel through its high-hardness surface, and the PTFE component reduces the coefficient of friction to below 0.1, achieving a self-lubricating and wear-resistant effect.

[0026] A further solution: The elastic reinforcing rib 31 is made of nickel-titanium shape memory alloy wire and aramid fiber composite twisted together and evenly wound on the outside of the insulation layer 2 at a helical angle of 30°-45°.

[0027] It can form a dynamically recoverable spiral buffer structure.

[0028] A further solution: Conductor unit 1 is made of multiple strands of silver-plated copper wire bundles twisted together, with each strand of silver-plated copper wire bundle wrapped with a graphene-modified polyimide film.

[0029] It can effectively improve the conductivity and temperature resistance of cables.

[0030] A further proposed solution: Insulation layer 2 is a three-layer co-extruded structure, with the inner layer being silicone rubber, the middle layer being nano-alumina reinforced ethylene propylene rubber, and the outer layer being fluororubber.

[0031] It can effectively improve the low temperature resistance, dielectric strength and oil resistance of cables.

[0032] A further solution: Shielding layer 5 uses a mixed mesh of tin-plated copper wire and carbon fiber.

[0033] At 1GHz, the shielding efficiency reaches 98dB, meeting the anti-interference requirements for high-speed data transmission.

[0034] A further solution: The buffer filling layer 4 is made of low-density polyethylene foam.

[0035] It is filled between the bending-resistant reinforcing layer 3 and the shielding layer 5 to absorb radial impact energy.

[0036] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wear-resistant cable provided with a bending resistance structure, characterized by: Includes conductor unit (1); An insulating layer (2) is provided on the outside of the conductor unit (1), an anti-bending reinforcement layer (3) is provided on the outside of the insulating layer (2), a buffer filling layer (4) is provided on the outside of the anti-bending reinforcement layer (3), a shielding layer (5) is provided on the outside of the buffer filling layer (4), and a wear-resistant outer sheath (6) is provided on the outside of the shielding layer (5). The bending-resistant reinforcement layer (3) includes multiple elastic reinforcing ribs (31). The elastic reinforcing ribs (31) are spirally wound on the outside of the insulation layer (2). A support body (32) is provided on the outside of the elastic reinforcing ribs (31). The outside of the support body (32) has a corrugated structure, and the corrugation direction is perpendicular to the cable axis. The elastic reinforcing ribs (31) are embedded in the inside of the support body (32).

2. A wear-resistant cable provided with an anti-kinking structure according to claim 1, characterized in that: The wear-resistant outer sheath (6) includes an elastomer (61) disposed on the outer layer of the shielding layer (5). Multiple hollow glass microspheres (62) are uniformly disposed inside the elastomer (61), and the outer side of the elastomer (61) is coated with a tungsten carbide wear-resistant coating (63) by plasma spraying.

3. A kink-resistant, abrasion-resistant cable as claimed in claim 1, wherein: The elastic reinforcing rib (31) is made of nickel-titanium memory alloy wire and aramid fiber composite twisted together and evenly wound on the outside of the insulation layer (2) with a spiral angle of 30°-45°.

4. A kink-resistant, abrasion-resistant cable as claimed in claim 1, wherein: The conductor unit (1) is made of multiple strands of silver-plated copper wire bundles twisted together, and each silver-plated copper wire bundle is wrapped with a graphene-modified polyimide film.

5. A kink-resistant, abrasion-resistant cable as claimed in claim 1, wherein: The insulating layer (2) is a three-layer co-extruded structure, with the inner layer being silicone rubber, the middle layer being nano-alumina reinforced ethylene propylene rubber, and the outer layer being fluororubber.

6. A kink-resistant, abrasion-resistant cable as claimed in claim 1, wherein: The shielding layer (5) is made of a mixed woven mesh of tin-plated copper wire and carbon fiber.

7. A kink-resistant, abrasion-resistant cable as claimed in claim 1, wherein: The buffer filling layer (4) is made of low-density polyethylene foam.

Images