Wire cable with good protection performance
By improving the outer protective sheath and inner layer structure of the cable, the problems of wear resistance, corrosion resistance and shock absorption in soil environment were solved, realizing the stable and safe operation of the cable in complex soil environment and extending its service life.
Patent Information
- Application Number
- CN202520577604.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Existing wires and cables lack sufficient wear resistance, corrosion resistance, and aging resistance in soil environments. They also lack effective cushioning and shock absorption measures, have poor flexibility, cannot adapt to complex soil environments, and their external protective materials are incomplete, making them unable to cope with various challenges.
It adopts a rectangular strip-shaped outer protective sleeve with positioning and installation perforations inside, and elastic buffer strips inside the installation perforations. The outer protective sleeve is made of fluororubber. The inner structure includes an outer fixing layer, a metal armor layer, a filling layer, and a central reinforcing rib. The outer protective sleeve has grooves on both sides, and the elastic buffer strip and the bottom of the installation perforation have an arc-shaped protrusion design.
It improves the cable's wear resistance, corrosion resistance, and aging resistance, enhances the buffering and shock absorption effect, improves the cable's flexibility and stability in soil environments, provides reliable external protection, and extends the cable's service life.
Smart Images

Figure CN223941569U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire and cable technology, specifically to a wire and cable with good protective properties. Background Technology
[0002] With the continuous development of modern society, wires and cables are being used more and more widely in various fields, serving as an important carrier for power and signal transmission.
[0003] However, existing electrical wires and cables buried in soil have some significant shortcomings. On the one hand, many cables have relatively simple external protective structures, lacking sufficient wear resistance, corrosion resistance, and aging resistance. In the complex environment of soil, they are easily eroded and damaged, failing to ensure stable and long-term use. On the other hand, existing cables lack effective cushioning and shock absorption measures when facing pressure and impact from the soil, making their internal structure susceptible to damage under pressure, affecting their performance and lifespan. Furthermore, existing cables lack flexibility when bending in soil, easily leading to excessive bending damage. They also lack specialized designs adapted to the soil environment, making it difficult to effectively cope with the various adverse effects of soil. In addition, the performance of some existing cable protective materials is not comprehensive enough to fully meet the challenges faced in soil, such as high temperatures, oil contamination, and chemical corrosion, which greatly limits the application effectiveness and reliability of cables in soil environments. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a wire and cable with good protective properties to solve the above-mentioned problems.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a protective wire and cable, comprising a cable body, an outer protective sleeve provided on the outside of the cable body, the outer protective sleeve being specifically configured as a rectangular strip distributed along the length of the cable body, a positioning through hole for installing the cable body provided inside the outer protective sleeve, an installation through hole provided above the positioning through hole inside the outer protective sleeve, an elastic buffer strip provided inside the installation through hole, and several grooves evenly provided on both sides of the outer protective sleeve to facilitate bending of the entire wire and cable.
[0008] As a preferred technical solution of this utility model, the bottom wall of the mounting hole is set as an upward-protruding arc-shaped protrusion, and the center of the arc-shaped protrusion is concentric with the center of the cable body, and the shape of the elastic buffer strip is consistent with the inside of the mounting hole.
[0009] As a preferred technical solution of this utility model, the elastic buffer strip is specifically made of natural rubber material, and the interior of the elastic buffer strip is set with a porous honeycomb structure.
[0010] As a preferred technical solution of this utility model, the outer protective sleeve is made of fluororubber.
[0011] As a preferred technical solution of this utility model, the cable body includes an outer fixing layer, a metal armor layer, a filling layer, a cable core, and a central reinforcing rib. The outer fixing layer, the metal armor layer, and the filling layer are distributed sequentially from the outside to the inside. The cable core is disposed inside the filling layer, and the central reinforcing rib is disposed in the center inside the filling layer.
[0012] As a preferred technical solution of this utility model, the outer fixing layer is made of cross-linked polyethylene material.
[0013] As a preferred technical solution of this utility model, the metal armor is made of copper strip material.
[0014] As a preferred technical solution of this utility model, the filling layer is made of PP fiber.
[0015] As a preferred technical solution of this utility model, the central reinforcing rib is made of multiple steel wires interwoven into a rope shape.
[0016] Compared with the prior art, this utility model provides a wire and cable with good protection, which has the following beneficial effects:
[0017] The outer protective sheath of this cable is rectangular and features excellent wear resistance, corrosion resistance, and aging resistance, effectively resisting erosion from various factors in the soil environment and ensuring the cable's normal operation over a long period. The positioning perforations fit tightly against the cable body, stabilizing its position and enhancing its stability in the soil. The elastic buffer strips within the installation perforations have excellent elastic deformation capabilities, rapidly absorbing and dispersing energy when the cable is subjected to pressure or impact from the soil, providing excellent cushioning and shock absorption, and effectively protecting the cable's internal structure from damage. The grooves on both sides of the outer protective sheath allow for more flexible and convenient bending of the cable in the soil, while avoiding damage caused by excessive bending, further enhancing the cable's adaptability to complex soil environments. The arc-shaped protrusion at the bottom of the installation perforations fits tightly against the elastic buffer strip, enhancing the cushioning effect and better coping with soil pressure. The fluororubber material used in the outer protective sheath is resistant to high temperatures, oil, and chemical corrosion, providing reliable external protection for the cable and ensuring its safe operation under various harsh soil conditions.
[0018] In summary, this type of wire and cable with a special external protective structure, thanks to its wear-resistant, corrosion-resistant, and aging-resistant outer protective sheath, as well as its elastic buffer strip with shock absorption function and easy-to-bend groove design, can significantly improve the compressive strength of cables buried in the soil. This ensures the stable and safe operation of the cable in complex and pressurized soil environments, extends the service life of the cable, and reduces cable damage and failures caused by external pressure, providing a reliable and high-performance solution for power and signal transmission in related fields. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the cable body of this utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the outer protective sleeve of this utility model.
[0023] The components include: 1. Cable body; 2. Outer protective sleeve;
[0024] 11. Outer fixing layer; 12. Metal armor layer; 13. Filler layer; 14. Cable core; 15. Central reinforcing rib;
[0025] 21. Positioning perforation; 22. Installation perforation; 23. Elastic buffer strip; 24. Groove. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.
[0027] It should be noted that if the utility model embodiment involves directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0028] Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the utility model.
[0029] Please see Figure 1-4 A type of protective wire and cable, comprising a cable body 1 and an outer protective sheath 2.
[0030] The outer protective sleeve 2 is a rectangular strip distributed along the length of the cable body 1, possessing excellent wear resistance, corrosion resistance, and aging resistance. Inside the outer protective sleeve 2 are positioning through holes 21 for mounting the cable body 1. These holes 21 fit tightly against the cable body 1, providing fixation and protection. Above the positioning through holes 21 is a through-hole 22, with an elastic buffer strip 23 inside. This elastic buffer strip 23 has excellent elastic deformation capability, effectively absorbing and dispersing energy when the cable is subjected to external impact or compression, providing cushioning and shock absorption, and protecting the internal structure of the cable from damage. Several grooves 24 are evenly distributed on both sides of the outer protective sleeve 2 to facilitate bending of the entire cable. These grooves 24 make bending the cable more flexible and convenient, while also preventing damage from excessive bending.
[0031] The bottom wall of the mounting hole 22 is an upward-convex arc-shaped protrusion, the center of which is concentric with the center of the cable body 1. This design allows for better contact with the elastic buffer strip 23, enhancing the buffering effect. The shape of the elastic buffer strip 23 is consistent with the interior of the mounting hole 22, tightly filling the hole. The elastic buffer strip 23 is made of natural rubber, which has good elasticity and toughness, and its internal porous honeycomb structure further improves the buffering performance and energy absorption effect. The outer protective sleeve 2 is made of fluororubber, which has excellent properties such as high temperature resistance, oil resistance, and chemical corrosion resistance, providing reliable external protection for the cable.
[0032] The cable body 1 includes an outer fixing layer 11, a metal armor layer 12, a filler layer 13, a cable core 14, and a central reinforcing rib 15. The outer fixing layer 11, as the outer layer of the cable, is made of cross-linked polyethylene. Cross-linked polyethylene has advantages such as high strength, high insulation, and heat resistance, effectively protecting the internal structure and providing good insulation performance. The metal armor layer 12 is wrapped with copper tape, which has good conductivity and mechanical strength, shielding against external electromagnetic interference and enhancing the overall strength of the cable. The filler layer 13 is filled with PP fiber, which is lightweight and resistant to acids and alkalis, making the internal structure of the cable more stable, while also providing some heat insulation and sound insulation. The cable core 14 is located inside the filler layer 13 and is responsible for transmitting electrical energy or signals. The central reinforcing rib 15 is located in the center of the filler layer 13 and is made of multiple steel wires crisscrossed into a rope shape, greatly improving the tensile strength and bending resistance of the cable, ensuring that the cable is not easily damaged during use.
[0033] 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.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A protective wire and cable, comprising a cable body (1), characterized in that: An outer protective sleeve (2) is provided on the outside of the cable body (1). The outer protective sleeve (2) is specifically configured as a rectangular strip distributed along the length of the cable body (1). The outer protective sleeve (2) is provided with a positioning through hole (21) for installing the cable body (1). The outer protective sleeve (2) is provided with a through mounting hole (22) above the positioning through hole (21). An elastic buffer strip (23) is provided inside the mounting through hole (22). Several grooves (24) are evenly provided on both sides of the outer protective sleeve (2) to facilitate bending of the entire cable.
2. The protective wire and cable according to claim 1, characterized in that: The bottom wall of the mounting hole (22) is set as an upward-protruding arc-shaped protrusion, and the center of the arc-shaped protrusion is concentric with the center of the cable body (1). The shape of the elastic buffer strip (23) is consistent with the inside of the mounting hole (22).
3. The protective wire and cable according to claim 2, characterized in that: The elastic buffer strip (23) is made of natural rubber, and the interior of the elastic buffer strip (23) is set with a porous honeycomb structure.
4. The protective wire and cable according to claim 1, characterized in that: The outer protective sleeve (2) is made of fluororubber.
5. The protective wire and cable according to claim 1, characterized in that: The cable body (1) includes an outer fixing layer (11), a metal armor layer (12), a filling layer (13), a cable core (14), and a central reinforcing rib (15). The outer fixing layer (11), the metal armor layer (12), and the filling layer (13) are distributed sequentially from the outside to the inside. The cable core (14) is disposed inside the filling layer (13), and the central reinforcing rib (15) is disposed at the center inside the filling layer (13).
6. The protective wire and cable according to claim 5, characterized in that: The outer fixing layer (11) is made of cross-linked polyethylene.
7. The protective wire and cable according to claim 5, characterized in that: The metal armor is made of copper strips.
8. The protective wire and cable according to claim 5, characterized in that: The filling layer (13) is made of PP fiber.
9. A protective wire and cable according to claim 5, characterized in that: The central reinforcing rib (15) is made of multiple steel wires interwoven into a rope shape.