Anti-bending optical fiber structure

Abstract

The utility model relates to the field of optical fiber structures, and discloses an anti-bending optical fiber structure, which comprises an optical fiber shell, a central reinforcing assembly is arranged in the optical fiber shell, a plurality of groups of optical fibers are arranged between the optical fiber shell and the central reinforcing assembly, and polyethylene bulges are integrally formed on the outer side of the optical fiber shell. According to the anti-bending optical fiber structure, the rectangular reinforcing ribs and the central reinforcing assembly are additionally arranged, the strength of the optical fiber can be enhanced, breakage is prevented, and meanwhile the anti-bending performance can be further improved.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber structures, specifically a bend-resistant optical fiber structure. Background Technology

[0002] Optical fiber is a highly transparent glass fiber drawn from quartz material. In cross-section, it consists of three parts: a core with a high refractive index, a cladding with a low refractive index, and a protective coating. The refractive index distribution is usually uniform along the optical axis. Based on the radial distribution of the refractive index in the core region, optical fibers can be divided into two categories. Fibers with different refractive index distributions have completely different transmission characteristics. Existing optical fiber structures generally consist of multiple fiber groups within a cladding layer. To increase overall strength, a reinforcing rib is added in the middle region of these fiber groups, thereby increasing the tensile strength of the overall fiber structure. However, relying solely on a single reinforcing rib cannot effectively increase the fiber's resistance to bending. Therefore, we propose a bend-resistant optical fiber structure. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a bend-resistant optical fiber structure, thus solving the aforementioned problems.

[0005] (II) Technical Solution

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a bend-resistant optical fiber structure, comprising an optical fiber shell, a central reinforcing component disposed inside the optical fiber shell, multiple sets of optical fibers disposed between the optical fiber shell and the central reinforcing component, a polyethylene protrusion integrally formed on the outer side of the optical fiber shell, a rectangular cavity formed on the polyethylene protrusion, and a rectangular reinforcing rib fixedly installed inside the rectangular cavity.

[0007] Preferably, the optical fiber shell comprises a polyethylene outer layer, a plastic-coated aluminum strip, a flame-retardant layer, and a polyethylene inner layer. The polyethylene inner layer is disposed inside the flame-retardant layer, the flame-retardant layer is disposed inside the plastic-coated aluminum strip, the plastic-coated aluminum strip is disposed inside the polyethylene outer layer, and the polyethylene protrusion is integrally formed on the outer side of the polyethylene outer layer.

[0008] Preferably, the central reinforcing component includes a central reinforcing rib and a rubber pad layer, wherein the central reinforcing rib is disposed on the inner side of the rubber pad layer, and multiple sets of optical fibers are disposed in the gap between the polyethylene inner layer and the rubber pad layer.

[0009] Preferably, the rubber pad is made of deformable rubber, and the central reinforcing rib is made of steel wire or fiber-reinforced plastic.

[0010] Preferably, multiple sets of elastic diaphragms are connected between the rubber pad layer and the polyethylene inner layer, and each optical fiber is located in the gap between two elastic diaphragms. The multiple sets of elastic diaphragms can separate the optical fibers.

[0011] Preferably, the hollow region between the two elastic diaphragms and the optical fiber is filled with filler rubber.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a bend-resistant optical fiber structure, which has the following beneficial effects:

[0014] 1. This bend-resistant optical fiber structure incorporates rectangular reinforcing ribs and a central reinforcing component, which enhances the strength of the optical fiber, prevents breakage, and further increases its bend resistance.

[0015] 2. The anti-bend fiber optic structure incorporates rectangular polyethylene protrusions, allowing the polyethylene protrusions to conform to the wall surface during installation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 A magnified view of part A in the diagram.

[0018] In the diagram: 1. Fiber optic outer shell; 2. Polyethylene protrusion; 3. Rectangular cavity; 4. Rectangular reinforcing rib; 5. Polyethylene outer layer; 6. Plastic-coated aluminum strip; 7. Flame retardant layer; 8. Polyethylene inner layer; 9. Elastic diaphragm; 10. Filling rubber; 11. Fiber optic cable; 12. Rubber pad; 13. Central reinforcing rib. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-2A bend-resistant optical fiber structure includes an optical fiber shell 1, a central reinforcing component inside the optical fiber shell 1, multiple sets of optical fibers 11 arranged between the optical fiber shell 1 and the central reinforcing component, and a polyethylene protrusion 2 integrally formed on the outer side of the optical fiber shell 1. A rectangular cavity 3 is formed on the polyethylene protrusion 2, and a rectangular reinforcing rib 4 is fixedly installed inside the rectangular cavity 3. By adding a polyethylene protrusion 2 with a rectangular cross-section, the polyethylene protrusion 2 can fit against the wall surface when the device is laid. At the same time, the addition of the rectangular reinforcing rib 4 and the central reinforcing component can strengthen the strength of the optical fiber, prevent breakage, and further increase the bend resistance.

[0021] Furthermore, the optical fiber shell 1 comprises a polyethylene outer layer 5, a plastic-coated aluminum strip 6, a flame-retardant layer 7, and a polyethylene inner layer 8. The polyethylene inner layer 8 is disposed inside the flame-retardant layer 7, the flame-retardant layer 7 is disposed inside the plastic-coated aluminum strip 6, and the plastic-coated aluminum strip 6 is disposed inside the polyethylene outer layer 5. The polyethylene protrusion 2 is integrally formed on the outside of the polyethylene outer layer 5. Adding the plastic-coated aluminum strip 6 and the flame-retardant layer 7 can increase the flame-retardant performance of this optical fiber and also increase its tensile properties. Both the polyethylene outer layer 5 and the polyethylene inner layer 8 are made of polyethylene. Polyethylene is a thermoplastic resin obtained by polymerization of ethylene monomers. Polyethylene is odorless, non-toxic, has a waxy feel, excellent low-temperature resistance, and good chemical stability. Because the polymer molecules are connected by carbon-carbon single bonds, it can resist the corrosion of most acids and alkalis. It is insoluble in common solvents at room temperature, has low water absorption, and excellent electrical insulation.

[0022] Furthermore, the central reinforcing component includes a central reinforcing rib 13 and a rubber pad layer 12. The central reinforcing rib 13 is disposed on the inner side of the rubber pad layer 12, and multiple sets of optical fibers 11 are disposed in the gap between the polyethylene inner layer 8 and the rubber pad layer 12.

[0023] Furthermore, the rubber pad 12 is made of deformable rubber, and the central reinforcing rib 13 is made of steel wire or fiber-reinforced plastic. The steel wire has high strength and can effectively prevent the optical fiber from being broken when subjected to external force. Fiber-reinforced plastic is a composite material that is lightweight, corrosion-resistant, and can also provide good tensile strength for the optical fiber.

[0024] Furthermore, multiple sets of elastic diaphragms 9 are connected between the rubber pad layer 12 and the polyethylene inner layer 8, and each optical fiber 11 is located in the gap between two elastic diaphragms 9. The multiple sets of elastic diaphragms 9 can separate the optical fibers 11.

[0025] Furthermore, the hollow area between the two elastic diaphragms 9 and the optical fiber 11 is filled with filling rubber 10. Adding filling rubber 10 can ensure that the optical fiber 11 can be stably placed between the two elastic diaphragms 9 and is not easily twisted or deformed.

[0026] Working principle: The addition of a rectangular polyethylene protrusion 2 allows the polyethylene protrusion 2 to fit against the wall surface during installation. The addition of a rectangular reinforcing rib 4 and a central reinforcing component strengthens the optical fiber, preventing breakage and further increasing its bending resistance.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bend-insensitive optical fiber structure comprising an optical fiber housing (1), characterized in that, The optical fiber housing (1) is provided with a central reinforcing component inside. Multiple optical fibers (11) are provided between the optical fiber housing (1) and the central reinforcing component. A polyethylene protrusion (2) is integrally formed on the outer side of the optical fiber housing (1). A rectangular cavity (3) is opened on the polyethylene protrusion (2). A rectangular reinforcing rib (4) is fixedly installed inside the rectangular cavity (3).

2. The bend-insensitive optical fiber structure of claim 1, wherein: The fiber optic shell (1) comprises a polyethylene outer layer (5), a plastic-coated aluminum strip (6), a flame-retardant layer (7), and a polyethylene inner layer (8). The polyethylene inner layer (8) is disposed inside the flame-retardant layer (7), the flame-retardant layer (7) is disposed inside the plastic-coated aluminum strip (6), the plastic-coated aluminum strip (6) is disposed inside the polyethylene outer layer (5), and the polyethylene protrusion (2) is integrally formed on the outside of the polyethylene outer layer (5).

3. The bend-insensitive optical fiber structure of claim 2, wherein: The central reinforcing component includes a central reinforcing rib (13) and a rubber pad layer (12). The central reinforcing rib (13) is disposed on the inner side of the rubber pad layer (12), and multiple sets of optical fibers (11) are disposed in the gap between the polyethylene inner layer (8) and the rubber pad layer (12).

4. The bend-insensitive optical fiber structure of claim 3, wherein: The rubber pad (12) is deformable rubber, and the central reinforcing rib (13) is made of steel wire or fiber-reinforced plastic.

5. The bend-insensitive optical fiber structure of claim 3, wherein: Multiple sets of elastic diaphragms (9) are connected between the rubber pad layer (12) and the polyethylene inner layer (8), and each optical fiber (11) is located in the gap between two elastic diaphragms (9).

6. A bend-insensitive optical fiber structure according to claim 5, wherein: The hollow area between the two elastic diaphragms (9) and the optical fiber (11) is filled with filling rubber (10).

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