A crush-resistant, ruggedized cable
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 天津市华夏电缆有限公司
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-09
Smart Images
Figure CN224342073U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable technology, specifically to a compression-resistant and stable cable. Background Technology
[0002] In actual use, cables are often subjected to external pressure. For example, when laid underground, they may be subjected to soil pressure or pressure from construction machinery; in industrial environments, cables may be compressed due to equipment vibration or collisions.
[0003] Existing cables have certain deficiencies in their structural design regarding resistance to compression. When subjected to significant compressive force, the internal structure of the cable is easily damaged, leading to insulation layer damage, conductor deformation, or even breakage. This, in turn, affects the normal use of the cable, reduces its service life, and may also cause safety accidents such as leakage and short circuits.
[0004] Therefore, this utility model provides a compression-resistant and stable cable to solve the above problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, this invention provides a compression-resistant and robust cable, thus solving the aforementioned problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a compression-resistant and stable cable, comprising a conductor, an insulation layer fixedly installed on the outer side of the conductor, an inner shielding layer fixedly installed on the outer side of the insulation layer, a metal armor fixedly installed on the outer side of the inner shielding layer, an outer shielding layer fixedly installed on the outer side of the metal armor, a buffer layer fixedly installed on the outer side of the outer shielding layer, and an outer sheath layer fixedly installed on the outer side of the buffer layer. The metal armor is made of high-strength stainless steel with double-layer spiral winding, and the winding directions of the two steel strips are opposite.
[0007] Preferably, the conductor is made of high-purity oxygen-free copper wire twisted together in multiple strands.
[0008] Preferably, the insulating layer is made of cross-linked polyethylene material that is resistant to high temperatures and wear.
[0009] Preferably, the inner shielding layer is made of a semi-conductive shielding material, and the inner shielding layer is made of the same material as the outer shielding layer.
[0010] Preferably, the buffer layer is made of polyurethane foam material with high elasticity and shock absorption properties.
[0011] Preferably, the outer sheath layer is made of high-strength, aging-resistant neoprene rubber material.
[0012] Beneficial effects
[0013] This invention provides a compression-resistant and robust cable. Compared with the prior art, it has the following advantages:
[0014] 1. This compression-resistant and stable cable adopts a double-layer reverse-wound high-strength stainless steel metal armor structure, combined with elastic buffer material filled between the steel strips. When the cable is subjected to external compression, the steel strips can support and constrain each other to disperse the compression force, effectively preventing cable deformation. The high hardness and strength of the high-strength stainless steel, combined with the compression and impact resistance of the outer sheath material neoprene rubber, provides all-round mechanical protection for the cable, significantly improving its stability in complex environments.
[0015] 2. This compression-resistant and stable cable uses multi-strand stranded high-purity oxygen-free copper wire as the conductor, reducing transmission loss and improving flexibility and tensile strength; the insulation layer uses high-temperature and wear-resistant cross-linked polyethylene material, combined with the uniform electric field distribution of the inner and outer shielding layers, effectively preventing leakage and eliminating electric field concentration, improving electrical performance and operational stability; the polyurethane foam material of the buffer layer and the neoprene rubber material of the outer sheath layer enhance the cable's weather resistance and anti-aging ability from the aspects of buffer protection and resistance to environmental erosion, respectively, greatly extending the cable's service life. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a perspective view of the external structure of this utility model;
[0018] Figure 2 This is a three-dimensional view of the internal structure of this utility model;
[0019] Figure 3 This is a cross-sectional view of the internal structure of this utility model.
[0020] In the diagram: 1. Conductor; 2. Insulating layer; 3. Inner shielding layer; 4. Metal armor; 5. Outer shielding layer; 6. Buffer layer; 7. Outer sheath layer. Detailed Implementation
[0021] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0022] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.
[0023] Reference Figures 1 to 3 This application provides a compression-resistant and robust cable, including a conductor 1, an insulation layer 2 fixedly installed on the outer side of the conductor 1, an inner shielding layer 3 fixedly installed on the outer side of the insulation layer 2, a metal armor 4 fixedly installed on the outer side of the inner shielding layer 3, an outer shielding layer 5 fixedly installed on the outer side of the metal armor 4, a buffer layer 6 fixedly installed on the outer side of the outer shielding layer 5, and an outer sheath layer 7 fixedly installed on the outer side of the buffer layer 6. The metal armor 4 is made of high-strength stainless steel with double-layer spiral winding, and the winding directions of the two steel strips are opposite.
[0024] It should be noted that this double-layer reverse winding structure design can effectively disperse the compressive force when the cable is subjected to external compression through the mutual support and constraint between the steel strips, preventing the cable from deforming due to compression. At the same time, the high-strength stainless steel strip has high hardness and strength, which can provide reliable mechanical protection for the cable. In addition, elastic buffer materials, such as rubber strips, are filled between the steel or aluminum strips of the metal armor layer to further enhance the buffering performance of the metal armor layer and reduce the impact of external compressive force on the internal structure of the cable.
[0025] In an optional embodiment, the conductor 1 is made of high-purity oxygen-free copper wire twisted together.
[0026] It should be noted that the multi-strand stranded structure can improve the flexibility and tensile strength of conductor 1, adapting to different installation environments and usage requirements. High-purity oxygen-free copper or aluminum wires have good conductivity, which can effectively reduce the transmission loss of the cable.
[0027] In an optional embodiment, the insulating layer 2 is made of high-temperature resistant and wear-resistant cross-linked polyethylene material.
[0028] It should be noted that polyethylene material has excellent electrical insulation properties, which can effectively prevent the conductor from coming into contact with external conductive materials and avoid leakage accidents. At the same time, the high temperature resistance and wear resistance of this material enable it to maintain good insulation performance in complex operating environments and extend the service life of the cable.
[0029] In an optional embodiment: the inner shielding layer 3 is made of a semi-conductive shielding material, and the inner shielding layer 3 is made of the same material as the outer shielding layer 5.
[0030] It should be noted that the function of the shielding layer 3 is to uniformly distribute the electric field, eliminate the air gap and electric field concentration between the insulation layer and the conductor, and improve the electrical performance and operational stability of the cable. The outer shielding layer 5 is set outside the metal armor layer 4. Its main function is to prevent the metal armor layer 4 from generating induced current, and at the same time further uniformly distribute the electric field outside the cable, thereby improving the electromagnetic compatibility and operational safety of the cable.
[0031] In an optional embodiment, the buffer layer 6 is made of a polyurethane foam material with high elasticity and shock absorption properties.
[0032] It should be noted that polyurethane foam can effectively absorb the impact and extrusion forces transmitted to the cable from the outside, providing further buffer protection for the internal structure of the cable. In addition, the material also has good flexibility and weather resistance, and can adapt to different environmental temperature and humidity changes.
[0033] In an optional embodiment, the outer sheath layer 7 is made of high-strength, aging-resistant neoprene rubber material.
[0034] It should be noted that neoprene rubber has excellent wear resistance, acid and alkali resistance, and oil resistance, which can effectively protect the internal structure of the cable from external environmental factors. At the same time, the material has high strength and toughness, and can resist external compression and impact to a certain extent.
[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0036] It should 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 process, method, article, or apparatus.
[0037] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A compression-resistant and robust cable, comprising a conductor (1), characterized in that: An insulating layer (2) is fixedly installed on the outside of the conductor (1). An inner shielding layer (3) is fixedly installed on the outside of the insulating layer (2). A metal armor (4) is fixedly installed on the outside of the inner shielding layer (3). An outer shielding layer (5) is fixedly installed on the outside of the metal armor (4). A buffer layer (6) is fixedly installed on the outside of the outer shielding layer (5). An outer sheath layer (7) is fixedly installed on the outside of the buffer layer (6). The metal armor (4) is made of high-strength stainless steel with double-layer spiral winding, and the winding directions of the two steel strips are opposite.
2. The compression-resistant and stable cable according to claim 1, characterized in that: The conductor (1) is made of high-purity oxygen-free copper wire twisted in multiple strands.
3. The compression-resistant and stable cable according to claim 1, characterized in that: The insulation layer (2) is made of cross-linked polyethylene material that is resistant to high temperature and wear.
4. The compression-resistant and stable cable according to claim 1, characterized in that: The inner shielding layer (3) is made of semi-conductive shielding material, and the inner shielding layer (3) and the outer shielding layer (5) are made of the same material.
5. The compression-resistant and stable cable according to claim 1, characterized in that: The buffer layer (6) is made of polyurethane foam material with high elasticity and shock absorption properties.
6. The compression-resistant and stable cable according to claim 1, characterized in that: The outer sheath layer (7) is made of high-strength, aging-resistant neoprene rubber.