Compression-resistant flame-retardant optical fiber cable

Abstract

The utility model relates to the technical field of optical fiber cables, and provides a compression-resistant flame-retardant optical fiber cable, which comprises a coating layer and an optical cable main body, an optical cable main body is arranged in the coating layer, and a compression-resistant structure is arranged on the outer side of the optical cable main body; a connecting layer is arranged on the outer side of the compression-resistant structure, and a protective structure is arranged on the outer side of the connecting layer. According to the utility model, the protection structure is arranged, and the flame-retardant layer is made of flame-retardant polyethylene, so that the flame-retardant and heat-insulating effects are achieved, and the phenomena of high-temperature spontaneous combustion and the like of the cable are prevented, and the wear-resistant layer is adhered to the outer side of the cable through the adhesive layer and is made of silicon rubber, so that the service life of the cable is prolonged. The wear-resistant bumps are uniformly fixed on the outer side of the wear-resistant layer and are semicircular, so that the wear-resistant property of the wear-resistant layer is reinforced in an auxiliary manner, and the purposes of protecting the device and prolonging the service life of the device are achieved.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber and cable technology, and in particular to a pressure-resistant flame-retardant optical fiber and cable. Background Technology

[0002] With the development of the times, people are using the Internet more and more widely. The main function of optical fiber cables is as a medium for transmitting optical signals. They have a wide range of applications in the fields of communication, data transmission and the Internet, which leads to the increasingly widespread use of optical fiber cables.

[0003] To address this, patent CN209248114U discloses a guided optical fiber cable, comprising an optical fiber cladding, an optical fiber coating, a fiber reinforcement layer, and an outer sheath, wherein the optical fiber cladding, optical fiber coating, fiber reinforcement layer, and outer sheath are arranged sequentially from the inside out. Under the same diameter conditions, the guided optical fiber cable of this invention exhibits significantly higher strength and bending performance than existing optical fiber cables, thus meeting the strength requirements of communication optical fibers.

[0004] During transportation, installation, and use, optical fiber cables are subject to external friction, which may cause surface wear and affect their overall service life. They may also burn under high temperature conditions. It is difficult to reinforce these aspects of optical cables, thus affecting their service life. Utility Model Content

[0005] The purpose of this invention is to provide a pressure-resistant, flame-retardant optical fiber cable to address the shortcomings of existing optical fiber cables in terms of insufficient service life.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a pressure-resistant flame-retardant optical fiber cable, comprising a sheathing layer and an optical cable body;

[0007] The inner part of the sheathing layer is provided with an optical cable body, and the outer side of the optical cable body is provided with a pressure-resistant structure;

[0008] A connecting layer is provided on the outside of the compression-resistant structure, and a protective structure is provided on the outside of the connecting layer;

[0009] The protective structure includes a flame-retardant layer disposed on the outside of the connecting layer, an adhesive layer disposed on the outside of the flame-retardant layer, a wear-resistant layer disposed on the outside of the adhesive layer, and wear-resistant protrusions uniformly fixed on the outer wall of the wear-resistant layer.

[0010] Preferably, the coating layer is epoxy resin.

[0011] Preferably, the compression-resistant structure includes a reinforcing layer disposed on the outside of the optical cable body, an elastic filler disposed on the outside of the reinforcing layer, and an insulating layer disposed on the outside of the elastic filler.

[0012] Preferably, the elastic filler is a thermoplastic elastomer.

[0013] Preferably, the insulating layer is polytetrafluoroethylene.

[0014] Preferably, the flame-retardant layer is flame-retardant polyethylene, and the wear-resistant layer is silicone rubber.

[0015] Preferably, the wear-resistant bumps are semi-circular in design and are evenly distributed on the outer wall of the wear-resistant layer.

[0016] The present invention provides a pressure-resistant and flame-retardant optical fiber cable, the advantages of which are:

[0017] By incorporating a protective structure, the flame-retardant layer is made of flame-retardant polyethylene, which provides flame retardant and heat insulation effects, thereby preventing the cable from spontaneously combusting at high temperatures. An adhesive layer is then bonded to the outside of the flame-retardant layer, which is made of silicone rubber and has high wear resistance. Wear-resistant bumps are evenly fixed to the outside of the wear-resistant layer in a semi-circular design, which further enhances the wear resistance of the wear-resistant layer, thus achieving the purpose of protecting the device and increasing its service life.

[0018] By incorporating a pressure-resistant structure, the elastic filler, made of thermoplastic elastomer, provides cushioning, support, and protection for the optical cable, thereby preventing damage when the cable is compressed. Furthermore, an insulating layer made of polytetrafluoroethylene (PTFE) is placed on the outside of the elastic filler, which also provides insulation, thus enhancing the device's pressure resistance and insulation performance. Attached Figure Description

[0019] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a front view structural diagram of the present utility model;

[0021] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0022] Figure 4 This is a frontal three-dimensional structural schematic diagram of the present invention;

[0023] Figure 5 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0024] The following are the annotations in the figure: 1. Covering layer; 2. Optical cable body; 3. Compression-resistant structure; 301. Reinforcing layer; 302. Elastic filler; 303. Insulation layer; 4. Connecting layer; 5. Protective structure; 501. Flame-retardant layer; 502. Adhesive layer; 503. Wear-resistant layer; 504. Wear-resistant bump. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-5 The present invention provides a pressure-resistant flame-retardant optical fiber cable, comprising a sheathing layer 1 and an optical cable body 2.

[0027] Reference Figures 1-3 As shown, the optical cable body 2 is disposed inside the sheathing layer 1. The sheathing layer 1 is epoxy resin. The compression-resistant structure 3 is disposed outside the optical cable body 2. The compression-resistant structure 3 includes a reinforcing layer 301 disposed outside the optical cable body 2. An elastic filler 302 is disposed outside the reinforcing layer 301. An insulating layer 303 is disposed outside the elastic filler 302. The elastic filler 302 is thermoplastic elastomer. The insulating layer 303 is polytetrafluoroethylene.

[0028] During the operation and use of optical fiber cables, they may be subjected to pressure, which may damage the internal optical cable body 2 and affect the normal operation of the device. Therefore, pressure-resistant protection is required. This is achieved by setting up a pressure-resistant structure 3 and a reinforcing layer 301 to strengthen the overall strength of the optical cable. An insulating layer 303 is set on the outside to prevent the external environment from affecting it. An elastic filler 302, which is a thermoplastic elastomer, is set between the insulating layer 303 and the reinforcing layer 301. It can play a role in buffering, supporting and protecting the device, thereby preventing the device from being damaged by compression and greatly increasing the practicality of the device.

[0029] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, a connecting layer 4 is provided on the outside of the compression-resistant structure 3, and a protective structure 5 is provided on the outside of the connecting layer 4. The protective structure 5 includes a flame-retardant layer 501 provided on the outside of the connecting layer 4, an adhesive layer 502 provided on the outside of the flame-retardant layer 501, and a wear-resistant layer 503 provided on the outside of the adhesive layer 502. Wear-resistant protrusions 504 are uniformly fixed on the outer wall of the wear-resistant layer 503. The flame-retardant layer 501 is flame-retardant polyethylene, and the wear-resistant layer 503 is silicone rubber. The wear-resistant protrusions 504 are semi-circular in design and are evenly distributed on the outer wall of the wear-resistant layer 503.

[0030] During the operation and use of optical fiber cables, their outer walls are inevitably subject to friction, which can lead to the exposure of the cable body 2 and affect its performance. Furthermore, the high temperature environment may cause spontaneous combustion, posing a safety hazard. Therefore, a protective structure 5 is provided, which includes a wear-resistant layer 503 on the outside of the device to increase the wear resistance of the cable. Wear-resistant protrusions 504 are evenly fixed on the outer wall of the wear-resistant layer 503 to further enhance the wear resistance. On the inner side of the wear-resistant layer 503, a flame-retardant layer 501 is bonded to it through an adhesive layer 502, which isolates the internal and external temperatures of the cable and prevents high-temperature combustion from damaging the cable body 2, thereby greatly increasing the practicality of the device.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A compression-resistant flame-retardant optical fiber cable, comprising a cladding layer (1) and a cable body (2); Characterized in that: The inside of the cladding layer (1) is provided with the cable body (2), and the outside of the cable body (2) is provided with a compression-resistant structure (3); The outside of the compression-resistant structure (3) is provided with a connecting layer (4), and the outside of the connecting layer (4) is provided with a protective structure (5); The protective structure (5) comprises a flame-retardant layer (501) arranged outside the connecting layer (4), the outside of the flame-retardant layer (501) is provided with an adhesive layer (502), the outside of the adhesive layer (502) is provided with a wear-resistant layer (503), and the outer wall of the wear-resistant layer (503) is uniformly fixed with wear-resistant protrusions (504).

2. A crush resistant, flame retardant optical fiber cable according to claim 1, wherein: The cladding layer (1) is epoxy resin.

3. A crush resistant, flame retardant optical fiber cable according to claim 1, wherein: The compression-resistant structure (3) comprises a reinforcing layer (301) arranged outside the cable body (2), the outside of the reinforcing layer (301) is provided with an elastic filling (302), and the outside of the elastic filling (302) is provided with an insulating layer (303).

4. A crush resistant, flame retardant optical fiber cable according to claim 3, wherein: The elastic filling (302) is a thermoplastic elastomer.

5. A crush resistant, flame retardant optical fiber cable according to claim 3, wherein: The insulating layer (303) is polytetrafluoroethylene.

6. A crush resistant, flame retardant optical fiber cable according to claim 1, wherein: The flame-retardant layer (501) is flame-retardant polyethylene, and the wear-resistant layer (503) is silicone rubber.

7. A crush resistant, flame retardant optical fiber cable according to claim 1, wherein: The wear-resistant protrusions (504) are designed in a semicircular shape, and the wear-resistant protrusions (504) are distributed at equal intervals on the outer wall of the wear-resistant layer (503).

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