Multi-layer composite rat-proof optical cable

Abstract

The utility model discloses a multi-layer composite rat-proof optical cable, relates to the technical field of optical cables, and remarkably improves the rat-proof effect by combining physical and chemical dual protection mechanisms. The optical cable comprises a self-expansion rubber layer, a rodent repellent slow-release layer (containing mint essential oil and laurel essential oil), an FRP reinforcing layer, an FPR reinforcing piece, water-blocking yarn, an outer sheath layer and the like, and a composite protection system for efficiently blocking and repelling mice is formed. And moreover, environment-friendly materials are adopted, so that environmental pollution is avoided, and relevant standards are met. Meanwhile, the FRP reinforcing layer replaces a metal material, so that the cost is reduced, and the weight is reduced.

Description

Technical Field

[0001] This utility model relates to the field of optical cable technology, specifically a multi-layer composite rodent-proof optical cable. Background Technology

[0002] In the application of optical cables, rodent control has always been a key concern in the industry. Rodent gnawing on optical cables not only damages them and affects communication quality, but can also cause more serious communication failures. Therefore, the research and development and application of rodent-proof optical cables are particularly important.

[0003] Traditional rodent-proof optical cables primarily rely on physical and chemical rodent-proofing techniques. Physical rodent-proofing typically employs metal armor (such as steel wire or steel tape) or non-metallic rigid materials (such as fiberglass reinforced polymer (FRP)) for protection. However, while metal materials offer excellent protection, they are heavy and difficult to bend, posing significant challenges to cable laying and maintenance. Non-metallic rigid materials like FRP, although relatively lightweight, have complex manufacturing processes and high costs, limiting their widespread application.

[0004] Chemical rodent control technology primarily achieves its effect by coating the surface of optical cables with chemical coatings such as capsaicin. However, these chemicals are harmful to humans and the environment, failing to meet current environmental protection and sustainable development requirements. Furthermore, single physical or chemical protective methods are often easily breached by rodents. For example, while metal armor can slow down rodent gnawing, it cannot actively repel rodents, thus limiting its protective effectiveness.

[0005] With the continuous development of communication technology and the increasing urgency of industry demands, lightweight, environmentally friendly multilayer composite optical cables that combine active rodent repellency and passive protection have become a research hotspot. These cables not only require excellent rodent-proof performance but also good mechanical properties, weather resistance, and environmental performance to meet the application needs of various harsh environments.

[0006] In summary, traditional rodent-proof optical cables have certain limitations in terms of technology and application, and cannot meet the current industry's urgent need for lightweight, environmentally friendly, and highly efficient rodent-proof optical cables. Therefore, this paper proposes to develop a novel multi-layer composite rodent-proof optical cable to overcome the shortcomings of existing technologies. Utility Model Content

[0007] In view of the shortcomings of existing technologies, this utility model provides a multi-layer composite rodent-proof optical cable, which solves the problems of the limitations of physical rodent-proof technology, the environmental problems of chemical rodent-proof technology, and the inadequacy of single protection methods.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer composite rodent-proof optical cable, comprising:

[0009] The self-expanding rubber layer is made of rubber material that expands when it comes into contact with water, and is used to form a physical barrier when rodents gnaw on it.

[0010] The rodent repellent slow-release layer releases irritating substances to repel rodents when damaged.

[0011] The reinforced compressive layer consists of several FRP rods with fan-shaped cross sections, arranged circumferentially to form a high-strength barrier structure;

[0012] Several cable cores are used to transmit signals.

[0013] Furthermore, the multi-layer composite rodent-proof optical cable also includes:

[0014] FPR reinforcement, located at the center of the optical cable, is used to improve the overall strength of the optical cable;

[0015] The outer sheath, located on the outermost layer of the optical cable, provides protection against high and low temperatures as well as UV radiation.

[0016] Water-blocking yarn is used to prevent moisture from entering the cable core.

[0017] Furthermore, the self-expanding rubber layer is made of polyurethane-modified rubber.

[0018] Furthermore, the rodent repellent slow-release layer contains peppermint oil and laurel oil.

[0019] Furthermore, the cable core includes optical fiber grease, several optical fibers, and a loose tube. The optical fibers are wrapped inside the loose tube, and the optical fiber grease fills the space between the optical fibers and the loose tube.

[0020] Furthermore, several FRP rods of the reinforced compressive layer are distributed around the FPR reinforcement.

[0021] This invention provides a multi-layer composite rodent-proof optical cable. Compared with the prior art, it has the following advantages:

[0022] 1. By combining physical protection (self-expanding rubber layer and FRP reinforcement layer) and chemical protection (peppermint oil and laurel oil rodent repellent slow-release layer), the system effectively blocks and repels rodents from gnawing, significantly improving the success rate of preventing optical cable from being bitten and effectively ensuring the integrity of the optical cable and the quality of communication.

[0023] 2. It abandons the use of traditional chemical agents and instead uses natural plant extracts as rodent repellents, avoiding environmental pollution and ecological damage, meeting relevant standards, and ensuring the environmental safety of the product.

[0024] 3. By using FRP reinforcement layers instead of metal materials, not only are material costs reduced, but the weight of the optical cable is also lightened, improving its flexibility and laying efficiency. At the same time, the multi-layer composite structure design allows for a reduction in the thickness of the protective layer, further lowering the overall cost of the optical cable. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of the present invention.

[0026] In the diagram: 1. Self-expanding rubber layer; 2. Rodent repellent slow-release layer; 3. Reinforcing and pressure-resistant layer; 4. Fiber optic grease; 5. Fiber optic cable; 6. FPR reinforcement; 7. Loose tube; 8. Water-blocking yarn; 9. Outer sheath layer. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1 This utility model provides a technical solution: a multi-layer composite rodent-proof optical cable, comprising a self-expanding rubber layer 1, a rodent repellent slow-release layer 2, a reinforcing and pressure-resistant layer 3, an FPR reinforcing member 6, a water-blocking yarn 8, an outer sheath layer 9, and several cable cores. The self-expanding rubber layer 1 is made of rubber material that expands when exposed to water. When rodents gnaw on it, the saliva produced will cause the bitten part of the self-expanding rubber layer 1 to become damp. After becoming damp, the volume of that part expands, thereby squeezing the rodent's mouth and forming a physical barrier against gnawing. The rodent repellent slow-release layer 2 can release irritating substances after being damaged. It can also repel rodents and enhance the pressure resistance layer 3, which includes several FRP rods with fan-shaped cross sections. The several FRP rods and several cable cores are arranged in a ring. The several cable cores are arranged around the FRP reinforcement 6, that is, the FRP reinforcement 6 is located in the center of the optical cable, which can improve the strength of the optical cable. The water-blocking yarn 8 can prevent water from entering the cable core. The outer sheath layer 9 is located on the outermost layer of the optical cable. It is preferably made of cross-linked polyethylene material, which has the characteristics of high temperature resistance, low temperature resistance, and ultraviolet resistance, so that the optical cable can still maintain good performance under extreme climatic conditions and is suitable for various harsh environments.

[0029] Specifically, the positions of the above structures are distributed as follows: several cable cores are arranged around the FPR reinforcing member 6, and water-blocking yarn 8 is filled between them. An enhanced pressure-resistant layer 3 is wrapped around the outside. A rodent repellent slow-release layer 2 is wrapped around the outside of the enhanced pressure-resistant layer 3. A self-expanding rubber layer 1 is wrapped around the outside of the rodent repellent slow-release layer 2. An outer sheath layer 9 is wrapped around the outside of the self-expanding rubber layer 1. The cable core includes optical fiber grease 4, several optical fibers 5, and loose tube 7. Several optical fibers 5 are wrapped inside the loose tube 7. The optical fiber grease 4 is filled in the space between the optical fibers 5 and the loose tube 7.

[0030] The self-expanding rubber layer 1 is preferably made of polyurethane modified rubber. The rodent repellent slow-release layer 2 contains peppermint oil and laurel oil, which stimulate the senses of rodents to achieve harmless repulsion of rodents. Both peppermint oil and laurel oil are plant extracts, non-toxic and biodegradable. Several FRP rods form a high-strength barrier structure that can prevent rodent teeth from penetrating. The FRP rods replace metal materials, which can significantly reduce the weight of the optical cable.

Claims

1. A multi-layer composite rodent-resistant optical cable, characterized by, Comprise: A self-expanding rubber layer (1) made of rubber material that can expand when exposed to water, used to form a physical barrier when gnawed by rodents; A rodent repellent slow-release layer (2) that can release irritating substances to repel rodents after being damaged; A reinforced compression-resistant layer (3) comprising a plurality of FRP rods with a fan-shaped cross-section arranged in a ring to form a high-strength barrier structure; A plurality of cable cores for transmitting signals.

2. A multi-layer composite rodent-resistant optical cable according to claim 1, wherein, Also include: An FPR reinforcing member (6) located in the center of the optical cable to improve the overall strength of the optical cable; An outer sheath layer (9) located on the outermost layer of the optical cable, which can provide protection against high temperature, low temperature and ultraviolet rays; A water-blocking yarn (8) to prevent water from entering the cable core.

3. The multi-layer composite rodent-resistant optical cable of claim 1, wherein, The self-expanding rubber layer (1) is made of polyurethane modified rubber.

4. The multi-layer composite rodent-resistant optical cable of claim 1, wherein, The cable core includes optical fiber grease (4), a plurality of optical fibers (5) and loose tubes (7), the optical fibers (5) are covered in the loose tubes (7), and the optical fiber grease (4) is filled in the space between the optical fibers (5) and the loose tubes (7).

5. A multi-layer composite rodent-resistant optical cable according to claim 2, wherein, The plurality of FRP rods of the reinforced compression-resistant layer (3) are distributed around the FPR reinforcing member (6).

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