Rodent and ant bite resistant abrasion resistant cable

Abstract

The utility model relates to a kind of wear-resistant cable of rat and ant bite prevention in the cable technical field, including cable core and filling layer, wrapping layer and outer sheath sequentially wrapped in the outer side of cable core from inside to outside, the outer side of the outer sheath is equipped with several wear-resistant muscle strips, several The wear-resistant muscle strip is equipped with cavity, the cavity is filled with the arrangement of medicament strip, the outer side of the wear-resistant muscle strip is equipped with several drug release holes with the cavity communication and is penetrated in setting.There is wear-resistant muscle strip on the outer side of outer sheath, reduce the direct friction of outer sheath and ground contact surface, improve cable wear resistance. And through the drug release hole of wear-resistant muscle strip outer side, the medicament strip in the cavity of wear-resistant muscle strip is continuously released to cable surface and peripheral environment, form effective repellent barrier, so that rat and ant are driven away when approaching cable, prevent its damage to outer sheath, to realize active protection, prolong the service life of cable and improve safety performance.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a wear-resistant cable that is resistant to rodent and ant bites. Background Technology

[0002] Cables, also known as electrical cables, are essential carriers for transmitting electricity or signals and are widely used in various engineering projects and daily life. However, in practical applications, cables are often laid in dark environments such as underground, in pipes, or within walls. These environments are prone to harboring rodents and ants, whose gnawing behavior seriously threatens the integrity and safety of the cables, leading to short circuits, signal interruptions, and even fires. To address the problem of rodent and ant bites, existing cables use chemical strips or armor layers on the inside of the outer sheath to repel or physically block rodents and ants, preventing their gnawing and damage.

[0003] However, because the protective layer or armor layer of existing cables is located inside the outer sheath, it only becomes effective after rodents and ants have chewed through the outer sheath. This fails to prevent rodents and ants from gnawing at the outer sheath, leading to repeated damage and accelerated aging and breakage. Consequently, the protective performance of the outer sheath gradually fails, affecting the cable's lifespan and safety. Therefore, this invention proposes a wear-resistant cable with rodent and ant bite protection. Summary of the Invention

[0004] This invention provides a wear-resistant cable that is resistant to rodent and ant bites. Through the drug release hole, the drug strip in the cavity of the wear-resistant rib continuously diffuses outward to form a repellent barrier, solving the technical problem that the outer sheath of existing cables is easily bitten repeatedly due to the lag in rodent and ant repellent measures.

[0005] The objective of this utility model is achieved through the following means: A wear-resistant cable for preventing rodent and ant bites includes a cable core and a filling layer, a wrapping layer, and an outer sheath that are sequentially wrapped around the outside of the cable core from the inside out. The outer sheath has several wear-resistant ribs on its outer side, and each of the wear-resistant ribs has a cavity. The cavity is filled with a drug strip, and the outer side of the wear-resistant rib has several drug release holes that communicate with the cavity.

[0006] Furthermore, several drug release holes are symmetrically arranged on both sides of the wear-resistant rib and linearly arrayed along the length of the wear-resistant rib.

[0007] Furthermore, the cross-section of the drug release orifice is funnel-shaped.

[0008] Furthermore, the diameter of the drug release hole gradually decreases along the outer side of the wear-resistant rib towards the cavity.

[0009] Furthermore, several of the wear-resistant ribs are arranged at intervals around the axis of the outer sheath.

[0010] Furthermore, the wear-resistant ribs are arranged to extend linearly along the axial direction of the outer sheath.

[0011] Furthermore, an inner sheath and an armor layer are provided sequentially from the inside out between the wrapping layer and the outer sheath.

[0012] Furthermore, a waterproof layer is provided between the armor layer and the inner sheath.

[0013] Furthermore, the cable core is composed of several conductors.

[0014] Furthermore, the wire includes a conductor and a conductor shielding layer, an insulating layer, and a metal shielding layer sequentially wrapped around the outside of the conductor.

[0015] The beneficial effects of this invention are as follows: By installing wear-resistant ribs on the outside of the outer sheath, direct friction between the outer sheath and surfaces such as the ground is reduced, improving the cable's wear resistance. Furthermore, through the drug release holes on the outside of the wear-resistant ribs, the drug strips within the rib cavities are continuously released onto the cable surface and surrounding environment, forming an effective repellent barrier. This repels rodents and ants when they approach the cable, preventing them from damaging the outer sheath, thus achieving active protection, extending the cable's service life, and improving safety performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a wear-resistant cable that is resistant to rodent and ant bites according to this utility model; Figure 2 for Figure 1 Enlarged diagram of A in the middle; Figure 3 This is a cross-sectional view of a wear-resistant cable that is resistant to rodent and ant bites according to this utility model. Figure 4 for Figure 3 Enlarged diagram of B in the middle; The labels in the figure are as follows: 1-Cable core, 11-Conductor, 111-Conductor, 112-Conductor shielding layer, 113-Insulation layer, 114-Metallic shielding layer, 2-Filling layer, 3-Wrapping layer, 4-Outer sheath, 41-Abrasion rib, 42-Cavity, 43-Medication strip, 44-Medication release hole, 5-Inner sheath, 6-Armor layer, 7-Waterproof layer. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] In this embodiment, refer to Figure 1 - Figure 4The specific implementation of this wear-resistant cable for preventing rodent and ant bites includes a cable core 1 and a filling layer 2, a wrapping layer 3, and an outer sheath 4 that are wrapped around the outside of the cable core 1 from the inside out. The outer sheath 4 has several wear-resistant ribs 41 on its outer side, and each wear-resistant rib 41 has a cavity 42. The cavity 42 is filled with a drug strip 43, and the outer side of the wear-resistant rib 41 has several drug release holes 44 that communicate with the cavity 42.

[0019] The outer sheath 4 is made of wear-resistant, high-temperature-resistant, and aging-resistant plastic or rubber materials to ensure the long-term stability of the cable in complex environments. The wrapping layer 3 uses mica tape to tightly wrap the filling layer 2 and the cable core 1, improving the overall mechanical strength and fire resistance of the structure. The filling layer 2 uses aramid rope, fiberglass rope, or high-strength PP rope to tightly fill the gaps in the cable core 1, effectively preventing the cable from being flattened and deformed and improving its impact resistance. Through the synergistic effect of the multi-layer composite structure, the cable's protective performance and environmental adaptability are improved, thereby extending the cable's service life in harsh environments.

[0020] The pesticide strip 43 is made by mixing and thoroughly stirring high-temperature resistant rodent and ant repellent drugs, adhesives, and slow-release materials in a specific ratio, then extruding the mixture into a strip shape and solidifying it. This solid structure allows the pesticide strip 43 to continuously release the rodent and ant repellent drugs during long-term use, and the drugs diffuse through the drug release holes 44 to the cable surface and surrounding environment, forming a long-term effective protective barrier. This inhibits rodents and ants from approaching or gnawing on the cable, preventing damage to the outer sheath 4 caused by rodents and ants, and improving the cable's service life and safety reliability.

[0021] During cable manufacturing, the wear-resistant ribs 41 and the outer sheath 4 are integrally extruded using extrusion equipment. Simultaneously, the drug strip 43 is embedded within the wear-resistant ribs 41, ensuring the drug strip 43 is firmly encased between the wear-resistant ribs 41 and the outer sheath 4. This creates a cavity 42 within the wear-resistant ribs 41 that tightly fits the drug strip 43, preventing displacement or detachment during long-term use. Subsequently, drug release holes 44 are precisely created on the outer surface of the wear-resistant ribs 41 using thermal processing or laser micro-hole processing technology. This allows the drug strip 43 to continuously and stably release active ingredients through the drug release holes 44, maintaining a long-lasting and stable protective effect.

[0022] In this embodiment, several drug release holes 44 are symmetrically arranged on both sides of the wear-resistant rib 41 and linearly arrayed along the length of the wear-resistant rib 41. Through the drug release holes 44 on both sides of the wear-resistant rib 41, the rodent- and ant-repellent drug in the drug strip 43 is evenly diffused to both sides of the rib. The spacing of the drug release holes 44 is adjusted according to the drug diffusion range to ensure the continuity and coverage of drug release, avoiding blind spots that could lead to partial exposure of the outer sheath 4 and subsequent rodent and ant bites.

[0023] The cross-section of the drug release orifice 44 is funnel-shaped. The diameter of the drug release orifice 44 gradually decreases from the outer side of the wear-resistant rib 41 towards the cavity 42. The funnel-shaped orifice structure, which is smaller inside and larger outside, can effectively prevent external impurities from clogging the release channel while slowing down the rate of drug evaporation and loss, making the drug release more sustained and stable.

[0024] Several wear-resistant ribs 41 are spaced around the axis of the outer sheath 4. The wear-resistant ribs 41 extend linearly along the axial direction of the outer sheath 4. The number of wear-resistant ribs 41 can be rationally configured according to the cable diameter and the slow-release range of the agent strips 43, and they are evenly distributed around the axis of the outer sheath 4 to ensure that the agent diffuses without dead zones. The linear arrangement design facilitates continuous extrusion molding during production, reduces process complexity, and improves production efficiency while ensuring structural stability.

[0025] Between the wrapping layer 3 and the outer sheath 4, an inner sheath 5 and an armor layer 6 are arranged sequentially from the inside out. The inner sheath 5 encloses the wrapping layer 3, the filling layer 2, and the cable core 1, acting as a buffer to prevent the armor layer 6 from damaging the inner wrapping layer 3 and the cable core 1. At the same time, it forms a moisture barrier to prevent moisture, humidity, and other chemical substances from penetrating the cable through the gaps in the armor layer 6, ensuring the stable and reliable electrical performance of the cable.

[0026] Armor layer 6 provides additional mechanical protection for the cable, enhancing its resistance to compression, tension, and impact, effectively resisting external physical damage. Armor layer 6 can be armored with steel tape or steel wire, and the appropriate type can be selected according to the mechanical stress conditions of the laying environment to ensure that the cable has excellent protective performance in different application scenarios such as direct burial, conduit, or overhead installation.

[0027] A waterproof layer 7 is also provided between the armor layer 6 and the inner sheath 5. The waterproof layer 7 can be made of water-absorbing and swelling materials such as water-blocking tape or water-blocking yarn. Upon contact with moisture, it quickly absorbs water to form a gel-like barrier, effectively sealing possible seepage paths. This provides a waterproof barrier for the cable, blocking external moisture penetration and preventing moisture from spreading longitudinally along the cable. It also prevents moisture from spreading longitudinally along the cable, ensuring the internal structure remains dry. Furthermore, it avoids water erosion caused by moisture intrusion, which can lead to a decrease in insulation performance and ensures long-term stable operation of the cable.

[0028] The cable core 1 is composed of several conductors 11. Each conductor 11 includes a conductor 111 and a conductor shielding layer 112, an insulation layer 113, and a metal shielding layer 114 that are sequentially wrapped around the conductor 111.

[0029] The conductor shielding layer 112 is made of a semi-conductive material that is at the same potential as the conductor 111, and it homogenizes the electric field on the surface of the conductor 111, suppresses partial discharge, and improves insulation reliability. The insulation layer 113 is made of insulating rubber or plastic material with flame-retardant and heat-resistant properties, thereby undertaking the main insulation function and ensuring that the conductor 11 operates stably in high-temperature and high-pressure environments.

[0030] The metal shielding layer 114 is made of braided or wound soft copper strip or copper wire mesh. The metal shielding layer 114 realizes electromagnetic shielding and grounding protection of the cable, provides a stable zero potential surface for the cable, and ensures the stability of the electric field distribution.

[0031] In this embodiment, the conductor 111 is composed of several stranded conductive metal wires. The stranding process gives the conductor 111 higher flexibility and fatigue resistance, making it easier to lay in environments with frequent bending and vibration, and effectively preventing core breakage due to mechanical stress concentration. Furthermore, the stranded structure increases the effective conductive area of ​​the conductor 111, reduces resistive heating, and further improves current carrying capacity and energy efficiency. This enhances the operational reliability of the conductor 111 under high loads and complex operating conditions.

[0032] The beneficial effects of this utility model are as follows: By setting wear-resistant ribs 41 on the outside of the outer sheath 4, the direct friction between the outer sheath 4 and the ground or other contact surfaces is reduced, thereby improving the wear resistance of the cable. Furthermore, through the drug release holes 44 on the outside of the wear-resistant ribs 41, the drug strips 43 inside the cavity 42 of the wear-resistant ribs 41 are continuously released to the cable surface and surrounding environment, forming an effective repellent barrier. This repels rodents and ants when they approach the cable, preventing them from damaging the outer sheath 4, thus achieving active protection, extending the cable's service life, and improving safety performance.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A wear-resistant cable resistant to rodent and ant bites, comprising a cable core (1) and a filling layer (2), a wrapping layer (3), and an outer sheath (4) sequentially wrapped around the outside of the cable core (1) from the inside out, characterized in that: The outer sheath (4) has several wear-resistant ribs (41) on its outer side, and each of the wear-resistant ribs (41) has a cavity (42) inside. The cavity (42) is filled with a drug strip (43), and the outer side of the wear-resistant ribs (41) has several drug release holes (44) that communicate with the cavity (42).

2. The wear-resistant cable resistant to rodent and ant bites according to claim 1, characterized in that: Several drug release holes (44) are symmetrically arranged on both sides of the wear-resistant rib (41) and linearly arrayed along the length of the wear-resistant rib (41).

3. The wear-resistant cable resistant to rodent and ant bites according to claim 1 or 2, characterized in that: The cross-section of the drug release orifice (44) is funnel-shaped.

4. The wear-resistant cable resistant to rodent and ant bites according to claim 3, characterized in that: The diameter of the drug release hole (44) gradually decreases along the outer side of the wear-resistant rib (41) toward the cavity (42).

5. The wear-resistant cable against rodent and ant bites according to claim 1, characterized in that: Several wear-resistant ribs (41) are arranged at intervals around the axis of the outer sheath (4).

6. The wear-resistant cable against rodent and ant bites according to claim 5, characterized in that: The wear-resistant ribs (41) are arranged to extend linearly along the axial direction of the outer sheath (4).

7. The wear-resistant cable resistant to rodent and ant bites according to claim 1, characterized in that: Between the wrapping layer (3) and the outer sheath (4), an inner sheath (5) and an armor layer (6) are provided sequentially from the inside to the outside.

8. The wear-resistant cable resistant to rodent and ant bites according to claim 7, characterized in that: A waterproof layer (7) is also provided between the armor layer (6) and the inner sheath (5).

9. The wear-resistant cable resistant to rodent and ant bites according to claim 1, characterized in that: The cable core (1) is composed of several conductors (11).

10. The wear-resistant cable against rodent and ant bites according to claim 9, characterized in that: The wire (11) includes a conductor (111) and a conductor shielding layer (112), an insulating layer (113) and a metal shielding layer (114) sequentially wrapped around the outside of the conductor (111).

Images