Anti-bending wire cable
By optimizing the cable structure and material combination, the flexibility and protection of the cable are enhanced, solving the problems of stress concentration and stripping difficulties in existing cables when bending, and achieving higher durability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG XIANGDALI WIRE & CABLE CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-01
AI Technical Summary
Existing bend-resistant wires and cables are prone to stress concentration when bent, which can lead to damage to the outer sheath or breakage of the internal conductor. Their rigid structure also makes stripping difficult, and they are not resistant to external impacts and chemical corrosion, resulting in insufficient durability.
The cable features a structural design that includes a reinforcing core, inner protective layer, overall shielding layer, support plate, flexible components, bending-resistant layer, metal wire, compression-resistant layer, and stripping layer. Combined with an optimized bonding process, this design enhances the cable's flexibility and protection, and facilitates stripping operations.
It improves the cable's resistance to bending, enhances its durability and safety, reduces structural damage, simplifies the stripping process, and adapts to diverse installation environments.
Smart Images

Figure CN224190708U_ABST
Abstract
Description
A type of bend-resistant wire and cable Technical Field
[0001] This utility model relates to the field of wire and cable technology, and in particular to wires and cables that are resistant to bending. Background Technology
[0002] In modern construction and daily life, wires and cables serve as important carriers of electricity and information transmission. The stability and reliability of their performance are directly related to the safe operation of the entire system. In power transmission and signal transmission, wires and cables are indispensable infrastructure, and their performance and structure are directly related to the stability and safety of the entire system. With the advancement of science and technology and the development of industrialization, the requirements for wires and cables are becoming increasingly stringent, especially in terms of bending resistance. However, existing bending-resistant wire and cable structures still have some shortcomings in practical applications.
[0003] In actual installation and use, existing anti-bending cables are not only difficult to bend due to their rigidity, but also prone to stress concentration at bends, leading to damage to the cable sheath or breakage of the internal conductor. This affects the cable's electrical performance and service life. Secondly, some existing cables are unable to effectively resist physical damage such as external impacts and compression, as well as chemical erosion such as moisture and corrosion, thus reducing the overall durability of the cable. At the same time, due to the excessive rigidity or tight bonding of the outer material in existing cable structures, stripping operations are extremely difficult. Summary of the Invention
[0004] This utility model proposes a bend-resistant wire and cable, which solves the contradiction between the strength and flexibility of existing bend-resistant wire and cable materials, as well as the problems of insufficient outer layer protection and difficulty in stripping the cable.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A bend-resistant wire and cable includes a reinforcing core, an inner protective layer on the outside of the reinforcing core, and a main shielding layer on the outside of the inner protective layer. The main shielding layer has corresponding mounting grooves on the inside and outside of the inner protective layer, and multiple sets of support plates are arranged inside the mounting grooves. Flexible components are arranged on the outside of the support plates. A stripping layer is arranged on the outside of the main shielding layer, and a bend-resistant layer is arranged on the outside of the stripping layer. Multiple sets of mounting holes are arranged inside the bend-resistant layer, and metal wires are arranged inside the mounting holes. A honeycomb-shaped pressure-resistant layer is arranged on the outside of the bend-resistant layer, and protective components are arranged on the side of the pressure-resistant layer.
[0007] Preferably, the flexible component includes a slot, a flame-retardant layer, a filler layer, a cable core, a sub-shielding layer, and a limiting groove. The flame-retardant layer is disposed on the outer side of the inner protective layer between the support plates. The limiting groove is disposed inside the flame-retardant layer, and the cable core is disposed inside the limiting groove. The sub-shielding layer is disposed on the outer side of the cable core.
[0008] Preferably, a filler layer is provided on the outer side of the fireproof layer inside the main shielding layer, and multiple sets of slots are provided inside the support plate.
[0009] Preferably, the release layer is made of thermoplastic polyvinyl chloride.
[0010] Preferably, a flame-retardant layer is provided on the outer side of the flexural layer, and a honeycomb-shaped buffer hole is provided inside the compressive layer.
[0011] Preferably, the protective component includes placement holes, elastic steel sheets, and a wear-resistant layer. The pressure-resistant layer has multiple sets of placement holes located on the side of the buffer hole. The placement holes are provided with elastic steel sheets, and the pressure-resistant layer is provided with a wear-resistant layer on the outside.
[0012] Preferably, the outer side of the wear-resistant layer is provided with multiple sets of wear-resistant protective protrusions.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This bend-resistant wire and cable has multiple sets of mounting holes inside the bend-resistant layer. Metal wires are installed inside the mounting holes. The use of metal wires and the bend-resistant layer helps to enhance the strength of the wire and cable and improve its bend resistance. In addition, the metal wires enhance the flexibility and resilience of the cable. When bending, the flexibility of the metal wires and the bend-resistant layer itself can effectively provide bending space for the cable core, thereby effectively preventing breakage.
[0015] 2. Corresponding mounting grooves are provided inside the main shielding layer and outside the inner protective layer. Multiple sets of support plates are installed inside the mounting grooves. A support structure is provided inside the main shielding layer. At the same time, multiple sets of slots are provided inside the support plates, which can effectively disperse bending stress and reduce structural damage. In addition, honeycomb-shaped buffer holes are provided inside the pressure-resistant layer, and elastic steel sheets are installed inside the placement holes. Multiple sets of wear-resistant protective protrusions are provided outside the wear-resistant layer. The buffering properties of the buffer holes and elastic steel sheets help to enhance the cable's resistance to the external environment, prevent wear and cutting damage, and further improve the cable's durability and safety.
[0016] 3. A release layer is provided between the main shielding layer and the bending-resistant layer. The release layer is made of thermoplastic polyvinyl chloride material, which can be easily peeled off under heating or the action of specific tools, while ensuring that the peeling process does not damage the internal structure. In addition, the bonding process is optimized to ensure that the bonding strength between the main shielding layer and the bending-resistant layer is moderate, which not only ensures the integrity of the cable, but also facilitates the stripping operation, thereby helping to improve the overall durability of the cable. At the same time, it is convenient for operators to install and connect the cable structure. Attached Figure Description
[0017] Figure 1 is a schematic diagram of the cross-sectional structure of this utility model.
[0018] Figure 2 is a schematic diagram of the structure of this utility model from another perspective.
[0019] Figure 3 is a schematic diagram of the exploded structure of this utility model.
[0020] Figure 4 is a schematic diagram of the limiting groove and support plate structure of this utility model.
[0021] The following are the labeling elements in the diagram: 1. Reinforcing core; 2. Inner protective layer; 3. Overall shielding layer; 4. Mounting groove; 5. Support plate; 6. Stripping layer; 7. Bending-resistant layer; 8. Mounting hole; 9. Metal wire; 10. Compression-resistant layer; 11. Slot; 12. Flame-retardant layer; 13. Filler layer; 14. Cable core; 15. Sub-shielding layer; 16. Limiting groove; 17. Flame-retardant layer; 18. Buffer hole; 19. Placement hole; 20. Elastic steel sheet; 21. Wear-resistant layer; 22. Wear-resistant protective protrusion. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Example 1
[0024] Referring to Figures 1-4, this utility model provides a technical solution: a bend-resistant wire and cable, including a reinforcing core 1. The reinforcing core 1 is made of high-strength aramid fiber, which significantly improves the cable's tensile and bending resistance due to its lightweight, high strength, and wear-resistant properties. An inner protective layer 2 is provided on the outside of the reinforcing core 1, and a total shielding layer 3 is provided on the outside of the inner protective layer 2. Corresponding mounting grooves 4 are provided inside the total shielding layer 3 and outside the inner protective layer 2. Multiple sets of support plates 5 are provided inside the mounting grooves 4. Flexible components are provided on the outside of the support plates 5. A peeling layer 6 is provided on the outside of the total shielding layer 3. A bend-resistant layer 7 is provided on the outside of the peeling layer 6. Multiple sets of mounting holes 8 are provided inside the bend-resistant layer 7. Metal wires 9 are provided inside the mounting holes 8. A honeycomb-shaped pressure-resistant layer 10 is provided on the outside of the bend-resistant layer 7. Protective components are provided on the side of the pressure-resistant layer 10.
[0025] Referring to Figures 3 and 4, the flexible component includes slots 11, a flame-retardant layer 12, a filler layer 13, a cable core 14, a sub-shielding layer 15, and a limiting slot 16. The flame-retardant layer 12 is located on the outer side of the inner protective layer 2 between the support plates 5. The limiting slot 16 is located inside the flame-retardant layer 12, and the cable core 14 is located inside the limiting slot 16. The sub-shielding layer 15 is located on the outer side of the cable core 14. The shielding layer can effectively isolate external interference, protect the clarity and stability of signal transmission, and also has a certain mechanical strength, which strengthens the overall cable structure. The filler layer 13 is located on the outer side of the flame-retardant layer 12 inside the total shielding layer 3, and multiple sets of slots 11 are provided inside the support plate 5. The peeling layer 6 is made of thermoplastic polyvinyl chloride material.
[0026] In practical implementation, a type of bend-resistant wire and cable, when in use, firstly, the stripping layer 6 is made of thermoplastic polyvinyl chloride material. By heating and using specific tools, the outer sheath of the cable can be easily peeled off, while ensuring that the peeling process does not damage the internal structure, facilitating subsequent installation and connection of the cable structure by operators. At the same time, the bend-resistant layer 7 and metal wires 9 inside the cable enhance the strength of the wire and cable and improve its bend resistance. When the wire and cable need to be bent, the flexibility of the metal wires 9 and the bend-resistant layer 7 can effectively provide bending space for the cable core 14, thereby effectively preventing breakage and adapting to installation in various environments such as confined spaces. Through the above operations, the bend resistance of the cable is significantly improved, and its environmental adaptability is enhanced.
[0027] Example 2
[0028] Referring to Figures 1 and 2, this embodiment is an optimization based on Embodiment 1. A flame-retardant layer 17 is provided on the outside of the bending-resistant layer 7, and a honeycomb-shaped buffer hole 18 is provided inside the pressure-resistant layer 10. The buffer hole 18 inside the pressure-resistant layer 10 has excellent elastic recovery force, which can maintain the overall integrity after repeated bending and prevent cracks from forming. The protective component includes placement holes 19, elastic steel sheets 20, and wear-resistant layer 21. Multiple sets of placement holes 19 are provided inside the pressure-resistant layer 10 on the side of the buffer hole 18. Elastic steel sheets 20 are provided inside the placement holes 19. The elastic steel sheets 20 can fully absorb external impact force and enhance the cable's resistance to the external environment. A wear-resistant layer 21 is provided on the outside of the pressure-resistant layer 10, and multiple sets of wear-resistant protective protrusions 22 are provided on the outside of the wear-resistant layer 21.
[0029] In specific implementation, a bend-resistant wire and cable, when protecting the wire and cable, firstly, the wear-resistant layer 21 and wear-resistant protective protrusions 22 on the outer side of the cable can effectively reduce the friction of the cable during installation and dragging. At the same time, the honeycomb-shaped buffer holes 18 inside the pressure-resistant layer 10 and the elastic steel sheets 20 inside the placement holes 19, through the buffering properties of the buffer holes 18 and elastic steel sheets 20, help to enhance the cable's resistance to the external environment. Secondly, a support structure is set inside the total shielding layer 3, and the support plate 5 is provided with multiple sets of slots 11, which can effectively disperse bending stress and reduce structural damage. In addition, the setting of the flame-retardant layer 12 and the flame-retardant layer 17 can improve the cable's high-temperature and low-temperature resistance performance to adapt to the usage requirements of different environments. Through the above operations, the durability and safety of the cable are further improved.
[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A bend-resistant wire and cable, comprising a reinforcing core (1), characterized in that, The reinforcing core (1) is provided with an inner protective layer (2) on the outside, and a total shielding layer (3) is provided on the outside of the inner protective layer (2). The total shielding layer (3) is provided with corresponding mounting grooves (4) on the inside and outside of the inner protective layer (2). Multiple sets of support plates (5) are provided inside the mounting grooves (4). Flexible components are provided on the outside of the support plates (5). A peeling layer (6) is provided on the outside of the total shielding layer (3). A bending-resistant layer (7) is provided on the outside of the peeling layer (6). Multiple sets of mounting holes (8) are provided inside the bending-resistant layer (7). Metal wires (9) are provided inside the mounting holes (8). A honeycomb-shaped pressure-resistant layer (10) is provided on the outside of the bending-resistant layer (7). Protective components are provided on the side of the pressure-resistant layer (10).
2. The bend-resistant wire and cable according to claim 1, characterized in that, The flexible component includes a slot (11), a flame-retardant layer (12), a filler layer (13), a cable core (14), a sub-shielding layer (15), and a limiting groove (16). The flame-retardant layer (12) is provided on the outer side of the inner protective layer (2) between the support plates (5). The limiting groove (16) is provided inside the flame-retardant layer (12), and the cable core (14) is provided inside the limiting groove (16). The sub-shielding layer (15) is provided on the outer side of the cable core (14).
3. The bend-resistant wire and cable according to claim 2, characterized in that, The fireproof layer (12) is located outside the total shielding layer (3) and a filler layer (13) is provided inside it. The support plate (5) is provided with multiple sets of slots (11).
4. The kink-resistant electrical cord cable of claim 1, wherein, The release layer (6) is made of thermoplastic polyvinyl chloride.
5. The kink-resistant electrical cord cable of claim 1, wherein, The flexural layer (7) is provided with a flame-retardant layer (17) on the outside, and the pressure-resistant layer (10) is provided with honeycomb-shaped buffer holes (18) inside.
6. The kink-resistant electrical cord cable of claim 1, wherein, The protective component includes placement holes (19), elastic steel sheets (20), and wear-resistant layer (21). The pressure-resistant layer (10) has multiple sets of placement holes (19) located on the side of the buffer hole (18). The placement holes (19) are provided with elastic steel sheets (20), and the pressure-resistant layer (10) is provided with wear-resistant layer (21) on the outside.
7. The bend-resistant wire and cable according to claim 6, characterized in that, Multiple sets of wear-resistant protective protrusions (22) are provided on the outer side of the wear-resistant layer (21).