High flame retardant high elasticity optical cable reinforcing core

Abstract

The utility model provides high flame -retardant high elasticity optical cable reinforcing core, include: core body, core body includes steel wire, a plurality of elastic cord, filling layer, flame -retardant layer, second protective sheath and wear -resisting layer, a plurality of elastic cord all set up in the outside of steel wire, filling layer sets up in the surface of elastic cord, flame -retardant layer sets up in the surface of filling layer, second protective sheath sets up in the surface of flame -retardant layer, wear -resisting layer sets up in the surface of second protective sheath, the utility model provides high flame -retardant high elasticity optical cable reinforcing core, through a plurality of elastic cord, make steel wire can restore to the linear state after winding or bending, prevent the transmission of optical cable bending influence simultaneously, through filling layer cooperation flame -retardant layer, increase the flame -retardant property of core body, and through second protective sheath cooperation wear -resisting layer, the protection of core body prevents in chemical plant, coastal area, saline and alkaline land etc. environment, the corrosion medium causes the erosion of core body, increases the strength of core body.

Description

Technical Field

[0001] This utility model relates to the field of optical cable reinforcing cores, and more particularly to high flame retardant and high elasticity optical cable reinforcing cores. Background Technology

[0002] Optical cables are manufactured to meet optical, mechanical, or environmental performance specifications. They are communication cable assemblies that use one or more optical fibers placed in a protective sheath as the transmission medium and can be used individually or in groups. Optical cables are mainly composed of optical fibers, plastic protective sheaths, and plastic outer sheaths. Optical cables do not contain metals such as gold, silver, copper, or aluminum and generally have no recycling value.

[0003] The fiber optic cable reinforcing core is a key component in the fiber optic cable structure. Its main function is to enhance the mechanical properties of the fiber optic cable, withstand external forces such as tension, flattening, and impact during laying and use, protect the optical fiber from damage, and maintain the structural stability of the fiber optic cable. The reinforcing core is placed in the center of the fiber optic cable and surrounded by loose tubes of optical fibers, forming a "central reinforcing element + stranded structure". This design can evenly distribute external forces.

[0004] Modern optical cable reinforcing cores typically use high-strength steel wires and steel strands. However, in humid, high-salt spray, or acidic / alkaline environments, such as coastal areas, the high-strength steel wires can oxidize and corrode, leading to a decrease in strength and even the generation of rust residue that contaminates the fiber coating of the internal components of the optical cable, affecting transmission performance.

[0005] Therefore, it is necessary to provide a high flame-retardant and high-elasticity optical cable reinforcing core to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a high flame-retardant and high-elasticity optical cable reinforcing core, which solves the problem that high-strength steel wires are prone to oxidation and corrosion in humid, high-salt spray, or acid-alkali environments.

[0007] To solve the above-mentioned technical problems, the present invention provides a high flame-retardant and high elasticity optical cable reinforcing core, comprising: a core body;

[0008] The core includes a steel wire, multiple elastic ropes, a filling layer, a flame-retardant layer, a second protective sleeve, and a wear-resistant layer. The multiple elastic ropes are all disposed on the outside of the steel wire. The filling layer is disposed on the surface of the elastic ropes. The flame-retardant layer is disposed on the surface of the filling layer. The second protective sleeve is disposed on the surface of the flame-retardant layer. The wear-resistant layer is disposed on the surface of the second protective sleeve.

[0009] Preferably, the core further includes a first protective sleeve disposed on the surface of the steel wire.

[0010] Preferably, the second protective sleeve is made of epoxy resin and is used to protect the flame-retardant layer.

[0011] Preferably, the filling layer is flame-retardant cotton, which is used to protect the elastic rope.

[0012] Preferably, the flame-retardant layer is made of ammonium phosphate and is used to retard the second protective sleeve.

[0013] Preferably, the surface of the wear-resistant layer is provided with an installation sleeve, and the installation sleeve has multiple installation grooves inside.

[0014] Preferably, the mounting sleeve is made of phenolic foam, which is used to block heat.

[0015] Compared with related technologies, the high flame-retardant and high elasticity optical cable reinforcing core provided by this utility model has the following characteristics:

[0016] Beneficial effects:

[0017] This utility model provides a high flame-retardant and high-elasticity optical cable reinforcing core. Through multiple elastic ropes, the steel wire can return to a straight state after being wound or bent, preventing the optical cable from bending and affecting transmission. At the same time, the flame-retardant layer and the filling layer together increase the flame retardancy of the core. Furthermore, the second protective sleeve and the wear-resistant layer together protect the core from corrosion caused by corrosive media in environments such as chemical plants, coastal areas, and saline-alkali land, thereby increasing the strength of the core. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the high flame-retardant and high elasticity optical cable reinforcing core provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shows the structure of the core.

[0020] Figure 3 Schematic diagrams of two preferred embodiments of the high flame-retardant and high elasticity optical cable reinforcing core provided by this utility model;

[0021] Figure 4 for Figure 3 The diagram shows the structure of the mounting sleeve.

[0022] The diagram is labeled as follows: 1. Core, 11. Steel wire, 12. First protective sleeve, 13. Elastic rope, 14. Filling layer, 15. Flame retardant layer, 16. Second protective sleeve, 17. Wear-resistant layer, 2. Mounting sleeve, 3. Mounting groove. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] First Embodiment

[0025] Please refer to the following: Figure 1 and Figure 2 ,in, Figure 1 A schematic diagram of a preferred embodiment of the high flame-retardant and high elasticity optical cable reinforcing core provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the core. The high flame-retardant, high-elasticity optical cable reinforcing core includes: core 1;

[0026] The core 1 includes a steel wire 11, multiple elastic ropes 13, a filling layer 14, a flame-retardant layer 15, a second protective sleeve 16, and a wear-resistant layer 17. The multiple elastic ropes 13 are all disposed on the outside of the steel wire 11. The filling layer 14 is disposed on the surface of the elastic ropes 13. The flame-retardant layer 15 is disposed on the surface of the filling layer 14. The second protective sleeve 16 is disposed on the surface of the flame-retardant layer 15. The wear-resistant layer 17 is disposed on the surface of the second protective sleeve 16.

[0027] Multiple elastic ropes 13 are made of rubber and are used to allow the steel wire 11 to return to a straight state after being wound or bent, so as to prevent the optical cable from bending and affecting the transmission.

[0028] The wear-resistant layer 17 is a polyurethane rubber coating used to protect the second protective sleeve 16.

[0029] The wear-resistant layer 17 can also be a neoprene rubber sleeve, which is fixedly connected to the surface of the second protective sleeve 16 to protect the second protective sleeve 16.

[0030] The core 1 also includes a first protective sleeve 12, which is disposed on the surface of the steel wire 11.

[0031] The first protective sleeve 12 is made of the same material as the second protective sleeve 12. It is used to prevent corrosive media from eroding the steel wire 11, which would lead to oxidation and rust, and produce rust residue that would contaminate the optical fiber coating layer of the internal components of the optical cable, thus affecting the transmission performance.

[0032] The second protective sleeve 12 is made of epoxy resin, and the second protective sleeve 16 is used to protect the flame retardant layer 15.

[0033] The protective sleeve 12 is used to protect the flame-retardant layer 15, thereby preventing corrosive media from eroding the core 1 in environments such as chemical plants, coastal areas, and saline-alkali land.

[0034] The filling layer 14 is flame-retardant cotton, which is used to protect the elastic rope 13.

[0035] While protecting the elastic rope 13, the filling layer 14 also provides secondary heat insulation, increasing the heat insulation effect. The flame-retardant cotton is treated with flame retardant agents, such as impregnation with phosphorus-based flame retardants, so that the fibers form a carbonized layer when burning, preventing the spread of flames and preventing molten drips. This prevents secondary fires caused by molten drips and injuries to personnel.

[0036] The flame-retardant layer 15 is made of ammonium phosphate and is used to retard the second protective sleeve 6.

[0037] The flame-retardant layer 15 is used to protect the second protective sleeve 6 in the event of a fire and to provide preliminary flame retardancy.

[0038] The working principle of the high flame-retardant and high elasticity optical cable reinforcing core provided by this utility model is as follows:

[0039] In use, multiple elastic ropes 13 allow the steel wire 11 to return to a straight state after winding or bending, preventing the optical cable from bending and affecting transmission. At the same time, the flame retardant layer 15, combined with the filling layer, increases the flame retardancy of the core, and the second protective sleeve 16, combined with the wear-resistant layer 17, protects the core 1.

[0040] Compared with related technologies, the high flame-retardant and high elasticity optical cable reinforcing core provided by this utility model has the following characteristics:

[0041] Beneficial effects:

[0042] This utility model provides a high flame-retardant and high-elasticity optical cable reinforcing core. Through multiple elastic ropes 13, the steel wires 11 can return to a straight state after being wound or bent, preventing the optical cable from bending and affecting transmission. At the same time, the flame-retardant layer 15 combined with the filling layer increases the flame retardancy of the core. Furthermore, the second protective sleeve 16 combined with the wear-resistant layer 17 protects the core 1, preventing corrosive media from eroding the core 1 in environments such as chemical plants, coastal areas, and saline-alkali land, thereby increasing the strength of the core 1.

[0043] Second Embodiment

[0044] Please refer to the following: Figure 3 and Figure 4 Based on the high flame-retardant and high elasticity optical cable reinforcing core provided in the first embodiment of this application, the second embodiment of this application proposes another high flame-retardant and high elasticity optical cable reinforcing core. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0045] Specifically, the difference between the high flame retardant and high elasticity optical cable reinforcing core provided in the second embodiment of this application is that the surface of the wear-resistant layer 17 of the high flame retardant and high elasticity optical cable reinforcing core is provided with an installation sleeve 2, and the interior of the installation sleeve 2 is provided with multiple installation grooves 3.

[0046] The mounting sleeve 2 is made of phenolic foam, which is used to block heat.

[0047] The installation sleeve 2 is used to insulate the core 1 and the optical cable, thereby preventing the optical cable from undergoing drastic temperature changes in high-temperature and high-humidity environments such as mines, which would cause the first protective sleeve 12 and the flame-retardant layer 15 to expand and allow moisture to continuously seep in through tiny gaps.

[0048] The working principle of the high flame-retardant and high elasticity optical cable reinforcing core provided by this utility model is as follows:

[0049] In use, the optical cable is wound inside the mounting slot 3.

[0050] Heat insulation is provided between core 1 and optical cable by installing sleeve 2.

[0051] Compared with related technologies, the high flame-retardant and high elasticity optical cable reinforcing core provided by this utility model has the following characteristics:

[0052] Beneficial effects:

[0053] This utility model provides a high flame-retardant and high elasticity optical cable reinforcing core. The installation sleeve 2 provides heat insulation between the core 1 and the optical cable, thereby preventing drastic temperature changes inside the optical cable in high-temperature and high-humidity environments such as mines, which would cause moisture to continuously seep in through tiny gaps. At the same time, multiple installation slots 3 are used to install the optical cable and the core 1.

[0054] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high flame retardant high elastic optical cable strength core, characterized by, Include: The core body includes a steel wire, a plurality of elastic ropes, a filling layer, a flame-retardant layer, a second protective sleeve and a wear-resistant layer, a plurality of the elastic ropes are arranged on the outer side of the steel wire, the filling layer is arranged on the surface of the elastic rope, the flame-retardant layer is arranged on the surface of the filling layer, the second protective sleeve is arranged on the surface of the flame-retardant layer, and the wear-resistant layer is arranged on the surface of the second protective sleeve. The core body further comprises a first protective sleeve, which is arranged on the surface of the steel wire.

2. The high flame retardant high elastomeric cable strength core of claim 1, wherein, The second protective sleeve is made of epoxy resin material, and the second protective sleeve is used for protecting the flame-retardant layer.

3. The high flame retardant high elastomeric cable strength core of claim 1, wherein, The filling layer is flame-retardant cotton, which is used for protecting the elastic rope.

4. The high flame retardant high elastomeric cable strength core of claim 1, wherein, The flame-retardant layer is made of ammonium nitrogen phosphate, which is used for flame-retardant of the second protective sleeve.

5. The high flame retardant high elastomeric cable strength core of claim 1, wherein, The surface of the wear-resistant layer is provided with a mounting sleeve, and a plurality of mounting grooves are formed in the mounting sleeve.

6. The high flame retardant high elastomeric cable strength core of claim 1, wherein, The mounting sleeve is made of phenolic foam material, and the phenolic foam is used for blocking heat.

7. The high flame retardant high elastomeric cable strength core of claim 6, wherein, ​

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