Waterproof sealed preformed optical cable

Abstract

The utility model relates to the technical field of optical fiber communication, specifically relates to a waterproof sealed prefabricated optical cable, including optical cable body, the optical cable body is by inner layer, reinforcing layer, sensing layer, repair layer, sealing layer and outer layer is composed, and is arranged according to the order from inside to outside, the utility model discloses the cooperation between optical cable body, inner layer, reinforcing layer, sensing layer, repair layer, sealing layer and outer layer, realizes sealing structure through bionic scale, after optical cable body is destroyed by external force, shape memory alloy scale, can close the crack in short time automatically, blocks the moisture invasion, and the nanometer capsule release repair agent that is set up in the repair layer interior, the waterproof performance of quick recovery, compared with traditional optical cable passive waterproof mode, significantly improves waterproof reliability and emergency ability handling, and the inside setting of sensing layer has a plurality of optical fiber sensors, can detect optical cable body temperature, humidity, strain etc. Parameter in real time, realizes the accurate positioning of fault.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication technology, specifically to a waterproof and sealed prefabricated optical cable. Background Technology

[0002] An optical fiber cable is a communication cable used to transmit optical signals. It consists of multiple optical fibers (optical guide fibers), each of which is made of high-purity glass or plastic.

[0003] Currently, traditional waterproof and sealed prefabricated optical cables mostly adopt a structure that combines static physical sealing with chemical water blocking, such as sealant filling and sealing ring wrapping. However, this type of structure has obvious defects: when subjected to mechanical damage (such as cutting or puncture), the waterproof layer is easily damaged and cannot be automatically repaired, leading to water intrusion and subsequent signal transmission interruption; at the same time, existing optical cables lack real-time monitoring capabilities, making it difficult to quickly locate the fault location, increasing maintenance costs and repair time.

[0004] In response to the problems raised in the above article, we propose a waterproof and sealed prefabricated optical cable. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a waterproof and sealed prefabricated optical cable, which can effectively solve the problems in the existing technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a waterproof and sealed prefabricated optical cable, including an optical cable body. The optical cable body is composed of an inner layer, a reinforcing layer, a sensing layer, a repair layer, a sealing layer, and an outer layer, arranged in order from the inside to the outside. The interior of the optical cable body has multiple single-mode optical fibers arranged in a honeycomb array, and the inner wall base of the optical cable body is made of flexible rubber.

[0008] According to the above-mentioned waterproof and sealed prefabricated optical cable, the inner layer has a ring array of multiple fiber tubes, and the fiber tubes are hollow. The inner layer is provided with buffer particles.

[0009] According to the above-mentioned waterproof and sealed prefabricated optical cable, the inner wall of the reinforcing layer is embedded with multiple optical fiber sensors.

[0010] According to the above-mentioned waterproof and sealed prefabricated optical cable, the inner wall of the sensing layer is coated with nanocapsules.

[0011] According to the above-mentioned waterproof and sealed prefabricated optical cable, the inner wall of the repair layer is provided with multiple biomimetic scales, which are overlapped in a serrated pattern.

[0012] According to the above-mentioned waterproof and sealed prefabricated optical cable, the outer side of the sealing layer is provided with a lotus leaf-like hydrophobic texture, and the whole is made of ultra-elastic polyurethane elastomer.

[0013] According to the above-mentioned waterproof and sealed prefabricated optical cable, the inner layer's internal tube wall is configured with multiple gradients.

[0014] According to the above-mentioned waterproof and sealed prefabricated optical cable, the nanocapsule is internally encapsulated with a two-component repair material.

[0015] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0016] This invention utilizes the cooperation between the optical cable body, inner layer, reinforcing layer, sensing layer, repair layer, sealing layer, and outer layer to achieve a sealing structure through biomimetic scales. After the optical cable body is damaged by external force, the shape memory alloy scales can automatically close the cracks in a short time, preventing water intrusion. Furthermore, the nanocapsules set inside the repair layer release repair agents, quickly restoring waterproof performance. Compared with traditional passive waterproofing methods for optical cables, this significantly improves waterproof reliability and emergency response capabilities. In addition, the sensing layer is equipped with multiple fiber optic sensors that can detect parameters such as temperature, humidity, and strain of the optical cable body in real time, enabling precise fault location. Attached Figure Description

[0017] 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 based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a cross-sectional view of the reinforcing layer of this utility model;

[0021] Figure 4 This is a cross-sectional view of the sensing layer of this utility model;

[0022] Figure 5 This is a cross-sectional view of the repair layer of this utility model;

[0023] Figure 6 This is a cross-sectional view of the sealing layer of this utility model.

[0024] Reference numerals in the attached diagram: 1. Optical cable body; 2. Inner layer; 3. Reinforcing layer; 4. Sensing layer; 5. Repair layer; 6. Sealing layer; 7. Outer layer; 21. Single-mode optical fiber; 31. Fiber tube. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The present invention will be further described below with reference to the embodiments.

[0027] Example: Refer to Figures 1 to 6 A waterproof and sealed prefabricated optical cable includes an optical cable body 1, which is composed of an inner layer 2, a reinforcing layer 3, a sensing layer 4, a repair layer 5, a sealing layer 6, and an outer layer 7, arranged in order from the inside to the outside. The interior of the optical cable body 1 has multiple single-mode optical fibers 21 arranged in a honeycomb array, and the inner wall substrate of the optical cable body 1 is made of flexible rubber. Through the cooperation between the optical cable body 1, the inner layer 2, the reinforcing layer 3, the sensing layer 4, the repair layer 5, the sealing layer 6, and the outer layer 7, dynamic adaptive waterproofing is achieved, improving the reliability of waterproofing.

[0028] The inner layer 2 has a ring array of multiple fiber tubes 31, which are hollow. Buffer particles are installed inside the inner layer 2. These buffer particles are fiber bundle units to enhance shock resistance. Multiple fiber optic sensors are embedded in the inner wall of the reinforcing layer 3 for positioning and data transmission. The inner wall of the sensing layer 4 is coated with nanocapsules, which can repair gaps in a timely manner. The inner wall of the repair layer 5 has multiple biomimetic scales that overlap in a serrated pattern. By overlapping the biomimetic scales in a serrated pattern, they can shrink and close gaps under current stimulation when damaged, preventing water intrusion. The outer side of the sealing layer 6 has a lotus leaf-like hydrophobic texture and is made entirely of super-elastic polyurethane elastomer. Polyurethane elastomer has high elasticity and wear resistance, can resist bending fatigue and scratches, and the hydrophobic texture can prevent water droplets from adhering and penetrating.

[0029] The inner wall of the inner layer 2 is designed with multiple gradients, which can effectively resist impact. The nanocapsule is encapsulated with a two-component repair material, which can cure quickly, improve repair efficiency, and ensure performance stability.

[0030] The working principle of this utility model is as follows: In use, the prefabricated optical cable is laid in pipes, trenches or overhead in the same way as traditional optical cables. No complicated welding process is required during installation. The connection can be completed by a special quick connector, which reduces the difficulty of construction and time cost. During use, the biomimetic scales achieve a sealing structure. After the optical cable body 1 is damaged by external force, the shape memory alloy scales can automatically close the cracks in a short time to prevent water intrusion. In addition, the nanocapsules set inside the repair layer 5 release repair agents to quickly restore the waterproof performance. Compared with the traditional passive waterproofing method of optical cables, it significantly improves the reliability of waterproofing and emergency handling capabilities. In addition, the sensing layer 4 is equipped with multiple fiber optic sensors, which can detect parameters such as temperature, humidity and strain of the optical cable body 1 in real time to achieve accurate fault location.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A waterproof, sealed prefabricated optical cable, comprising an optical cable body (1), characterized in that: The optical cable body (1) is composed of an inner layer (2), a reinforcing layer (3), a sensing layer (4), a repair layer (5), a sealing layer (6) and an outer layer (7), arranged in order from the inside to the outside. The interior of the optical cable body (1) is arranged in a honeycomb array with multiple single-mode optical fibers (21), and the inner wall base of the optical cable body (1) is made of flexible rubber.

2. The waterproof and sealed prefabricated optical cable according to claim 1, characterized in that: The inner layer (2) has a ring array of multiple fiber tubes (31) inside, and the fiber tubes (31) are hollow. The inner layer (2) is provided with buffer particles inside.

3. The waterproof and sealed prefabricated optical cable according to claim 1, characterized in that: The inner wall of the reinforcing layer (3) is embedded with multiple fiber optic sensors.

4. The waterproof and sealed prefabricated optical cable according to claim 1, characterized in that: The inner wall of the sensing layer (4) is coated with nanocapsules.

5. A waterproof, sealed prefabricated optical cable according to claim 1, characterized in that: The inner wall of the repair layer (5) is provided with multiple biomimetic scales, which are overlapped in a serrated pattern.

6. A waterproof, sealed prefabricated optical cable according to claim 1, characterized in that: The outer side of the sealing layer (6) is provided with a lotus leaf-like hydrophobic texture, and the whole is made of super-elastic polyurethane elastomer.

7. A waterproof, sealed prefabricated optical cable according to claim 2, characterized in that: The inner wall of the inner layer (2) is configured with a multi-layer gradient.

8. A waterproof, sealed prefabricated optical cable according to claim 4, characterized in that: The nanocapsule contains a two-component repair material.

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