High-strength flame-retardant armored optical fiber jumper wire

Abstract

The utility model belongs to the field of optical fibers, and particularly relates to a high-strength flame-retardant armored optical fiber patch cord, which comprises a central tube type light pre-assembled optical cable, a patch cord branch cable, circular porous splitters and an optical fiber connector assembly, and is characterized in that the circular porous splitters are arranged on two sides of the central tube type light pre-assembled optical cable; the round porous splitter is connected with a plurality of jumper branch cables, one end of each jumper branch cable is provided with an optical fiber connector assembly, the central tube type light pre-assembled optical cable comprises an optical fiber, optical fiber filling paste, a loose tube, high-strength aramid yarn and a flame-retardant corrosion-resistant sheath, the optical fiber and the optical fiber filling paste are sleeved in the loose tube, and the optical fiber and the high-strength aramid yarn are sleeved in the flame-retardant corrosion-resistant sheath. High-strength aramid yarn is twisted outside the loose tube in an SZ mode. According to the utility model, the design is reasonable, the stretch resistance, side pressure resistance, flame retardance and corrosion resistance of the optical fiber patch cord can be enhanced through the arrangement of the high-strength aramid yarn and the flame-retardant corrosion-resistant sheath, and the optical fiber patch cord is more suitable for outdoor use.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fibers, in particular to a high-strength flame-retardant armored optical fiber jumper. Background Art

[0002] Since the advent of optical fiber, due to its inherent material properties, it has been necessary to manufacture cables with appropriate mechanical properties for use in various environments. This is to ensure the secure transmission of optical signals during laying, installation, use, and maintenance, thus ensuring the smooth operation of data transmission networks. However, optical fiber itself is particularly vulnerable in terms of tensile strength, lateral pressure resistance, flame retardancy, and corrosion resistance.

[0003] Existing, widely used outdoor and indoor optical cables lack the tensile strength, lateral pressure resistance, flame retardancy, and corrosion resistance required for complex environments. Conventional fiber optic patch cables, typically assembled from indoor optical cables and fiber optic connectors, have low tensile strength, lateral pressure resistance, flame retardancy, and corrosion resistance, making them unsuitable for outdoor communications. Therefore, we developed a high-strength, flame-retardant, armored fiber optic patch cable to address these issues. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a high-strength flame-retardant armored optical fiber jumper.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A high-strength flame-retardant armored fiber optic jumper, comprising a central tube-type lightweight pre-assembled optical cable, a jumper branch cable, a circular multi-hole brancher, and an optical fiber connector assembly. The central tube-type lightweight pre-assembled optical cable is provided with circular multi-hole branchers on both sides, and a plurality of jumper branch cables are connected to the circular multi-hole branchers. One end of the jumper branch cable is provided with an optical fiber connector assembly.

[0007] The central tube type lightweight pre-assembled optical cable includes optical fiber, optical fiber filling paste, loose tube, high-strength aramid yarn and flame retardant and corrosion-resistant sheath. The optical fiber and optical fiber filling paste are inserted into the loose tube. The high-strength aramid yarn is SZ-stranded outside the loose tube. A flame retardant and corrosion-resistant sheath is extruded outside the high-strength aramid yarn. The jumper branch cable includes an optical fiber empty tube and an optical fiber sheath tube. The optical fiber passes through the corresponding optical fiber empty tube, and the optical fiber sheath tube is then inserted outside the optical fiber empty tube.

[0008] Optionally, the circular multi-hole brancher is provided with a plurality of circular holes, and the jumper branch cables pass through the corresponding circular holes.

[0009] By adopting the above technical solution, since there are multiple circular holes on the circular porous brancher, the jumper branch cable is inserted into the circular holes in the circular porous brancher, and the circular porous brancher is inserted into the central tube type lightweight pre-assembled optical cable for assembly.

[0010] Optionally, the optical fiber connector assembly includes a tail handle and an optical fiber connector, the tail handle is inserted into the jumper branch cable, and the optical fiber in the jumper branch cable is assembled with the optical fiber connector.

[0011] By adopting the above technical solution, the tail handle can be connected to the jumper branch cable, and the optical fiber connector can be connected to the optical fiber in the jumper branch cable.

[0012] Optionally, the loose tube in the central tube type lightweight pre-assembled optical cable is made of a stainless steel capillary tube, and the wall thickness of the stainless steel capillary tube is 0.5±0.05 mm.

[0013] By adopting the above technical solution, the wall thickness of the loose tube is 0.5±0.05mm, which enhances the tensile strength and lateral pressure resistance of the optical fiber jumper.

[0014] Optionally, the loose tube outer SZ-twisted high-strength aramid yarn adopts a 333 series specification and is composed of 24 multi-strand high-strength aramid yarns tightly twisted together.

[0015] By adopting the above technical solution, optical fiber and optical fiber filling paste are inserted into the loose tube, and the filling amount of optical fiber filling paste in the loose tube cannot be less than 90% of the capacity of the loose tube. The high-strength aramid yarn is SZ-twisted outside the loose tube. The high-strength aramid yarn specification adopts the 333 series and is tightly twisted with 24 multi-strand high-strength aramid yarns, which further improves the tensile and lateral pressure resistance of the optical fiber jumper.

[0016] Optionally, the flame-retardant and corrosion-resistant sheath in the central tube type lightweight pre-assembled optical cable is made of TPU elastic polyurethane material. The extruded sheath has super softness, high flame retardancy, and strong corrosion resistance. The sheath thickness is 2.0±0.2mm.

[0017] By adopting the above technical solution, the flame retardant and corrosion resistant sheath adopts TPU polyurethane material, and the extruded sheath has super softness, high flame retardancy and strong corrosion resistance.

[0018] Optionally, the optical fiber sheath tube adopts LSZH low-smoke halogen-free flame retardant sheath, the outer diameter of the optical fiber sheath tube is 2.0±0.05mm, and the inner diameter of the optical fiber sheath tube is not less than 1.0mm.

[0019] By adopting the above technical solution, the optical fiber sheath tube adopts LSZH low-smoke halogen-free flame retardant sheath, which can achieve enhanced flame retardant performance.

[0020] Beneficial effects of the utility model:

[0021] 1. Due to the SZ-twisted high-strength aramid yarn outside the loose tube, the high-strength aramid yarn specification adopts 333 series, and multiple strands of high-strength aramid yarn are tightly twisted, which further improves the tensile and lateral pressure resistance of the optical fiber jumper.

[0022] 2. A flame retardant and corrosion resistant sheath is provided. The flame retardant and corrosion resistant sheath is made of TPU polyurethane material. The extruded sheath has super softness, high flame retardancy and strong corrosion resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of a high-strength flame-retardant armored optical fiber jumper proposed by the utility model.

[0024] Figure 2 This is a schematic diagram of the central tube type lightweight pre-assembled optical cable structure of a high-strength flame-retardant armored optical fiber jumper proposed by the utility model.

[0025] Figure 3 This is a schematic diagram of the jumper branch cable structure of a high-strength flame-retardant armored optical fiber jumper proposed by the utility model.

[0026] Figure 4 This is a schematic diagram of the structure of a circular multi-hole splitter for a high-strength flame-retardant armored optical fiber jumper proposed by the utility model.

[0027] Figure 5 This is a schematic structural diagram of an optical fiber connector assembly for a high-strength flame-retardant armored optical fiber jumper proposed in the utility model.

[0028] In the figure: 1. Central tube lightweight pre-assembled optical cable; 101. Optical fiber; 102. Optical fiber filling paste; 103. Loose tube; 104. High-strength aramid yarn; 105. Flame-retardant and corrosion-resistant sheath; 2. Jumper branch cable; 201. Optical fiber empty tube; 202. Optical fiber sheath tube; 3. Circular multi-hole splitter; 301. Circular hole; 4. Optical fiber connector assembly; 401. Tail handle; 402. Optical fiber connector. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-5 This application is described in further detail.

[0030] The embodiments of the present application disclose a high-strength flame-retardant armored optical fiber jumper.

[0031] Reference Figure 1-5A high-strength flame-retardant armored optical fiber jumper includes a central tube light pre-assembled optical cable 1, a jumper branch cable 2, a circular porous brancher 3, and an optical fiber connector 402 component. The central tube light pre-assembled optical cable 1 is provided with circular porous branchers 3 on both sides, and multiple jumper branch cables 2 are connected to the circular porous branchers 3. One end of the jumper branch cable 2 is provided with an optical fiber connector 402 component. The central tube light pre-assembled optical cable 1 includes an optical fiber 101, an optical fiber filling paste 102, a loose The loose tube 103 comprises a sleeve 103, a high-strength aramid yarn 104 and a flame-retardant and corrosion-resistant sheath 105, an optical fiber 101 and an optical fiber filling paste 102 are inserted into the loose tube 103, high-strength aramid yarn 104 is SZ-stranded outside the loose tube 103, a layer of flame-retardant and corrosion-resistant sheath 105 is extruded outside the high-strength aramid yarn 104, the jumper branch cable 2 comprises an optical fiber hollow tube 201 and an optical fiber sheath tube 202, the optical fiber 101 passes through the corresponding optical fiber hollow tube 201, and the optical fiber sheath tube 202 is inserted outside the optical fiber hollow tube 201.

[0032] In this embodiment, a plurality of circular holes 301 are formed on the circular multi-hole brancher 3 , and the jumper branch cables 2 pass through the corresponding circular holes 301 .

[0033] In this embodiment, the optical fiber connector 402 assembly includes a tail handle 401 and an optical fiber connector 402 . The tail handle 401 is inserted into the jumper branch cable 2 , and the optical fiber 101 in the jumper branch cable 2 is assembled with the optical fiber connector 402 .

[0034] In this embodiment, the loose tube 103 in the central tube type lightweight pre-assembled optical cable 1 is made of a stainless steel capillary tube, and the wall thickness of the stainless steel capillary tube is 0.5±0.05 mm.

[0035] In this embodiment, the loose tube 103 is SZ-twisted with high-strength aramid yarn 104 , which has a specification of 333 series and is composed of 24 strands of high-strength aramid yarn 104 tightly twisted together.

[0036] In this embodiment, the flame retardant and corrosion resistant sheath 105 in the central tube type lightweight pre-assembled optical cable 1 is made of TPU elastic polyurethane material. The extruded sheath has super softness, high flame retardancy and strong corrosion resistance. The thickness of the sheath is 2.0±0.2 mm.

[0037] In this embodiment, the optical fiber sheath tube 202 adopts LSZH low-smoke halogen-free flame retardant sheath, the outer diameter of the optical fiber sheath tube 202 is 2.0±0.05 mm, and the inner diameter of the optical fiber sheath tube 202 is not less than 1.0 mm.

[0038] In the present invention, the central tube type lightweight pre-assembled optical cable 1, the loose tube 103 is extruded from a stainless steel capillary material, which enhances the tensile strength and lateral pressure resistance of the optical fiber jumper, the optical fiber 101 and the optical fiber filling paste 102 are inserted into the loose tube 103, and the filling amount of the optical fiber filling paste 102 in the loose tube 103 cannot be less than 90% of the capacity of the loose tube 103, the loose tube 103 is SZ-twisted with high-strength aramid yarn 104 outside, the high-strength aramid yarn 104 specification adopts the 333 series, and is tightly twisted with 24 multi-strand high-strength aramid yarns 104, further improving the tensile strength and lateral pressure resistance of the optical fiber jumper, the high-strength aramid yarn 104 is extruded with a flame retardant and corrosion-resistant sheath 105 outside, the flame retardant and corrosion-resistant sheath adopts TPU polyurethane material, and the extruded sheath has super softness, high flame retardant grade, and strong corrosion resistance. The flame retardant and corrosion resistant sheaths 105 at both ends of the lightweight pre-assembled optical cable 1 are stripped off with a stripping length of 5±0.5m, and the multiple strands of high-strength aramid yarn 104 are cut off, and then the loose tube 103 is cut off. At the same time, the optical fiber 101 and the optical fiber filling paste 102 are wiped clean with alcohol cotton, and the optical fiber 101 is inserted into the optical fiber hollow tube 201 in the jumper branch cable 2, and the optical fiber sheath tube 202 is inserted outside the optical fiber hollow tube 201. The optical fiber sheath tube 202 adopts LSZH low-smoke halogen-free flame retardant sheath, and the jumper branch cable 2 is inserted into the circular hole 301 in the circular porous branch device 3. The circular porous branch device 3 is inserted into the central tube type lightweight pre-assembled optical cable 1 for assembly. The optical fiber connector assembly 4 includes a tail handle 401 and an optical fiber connector 402. The tail handle 401 is inserted into the jumper branch cable 2, and the optical fiber 101 in the jumper branch cable 2 is assembled with the optical fiber connector 402.

[0039] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-strength flame-retardant armored optical fiber jumper, characterized in that: The invention comprises a central tube type light pre-assembled optical cable (1), a jumper branch cable (2), a circular multi-hole brancher (3), and an optical fiber connector (402) component, wherein the central tube type light pre-assembled optical cable (1) is provided with circular multi-hole branchers (3) on both sides, a plurality of jumper branch cables (2) are connected to the circular multi-hole brancher (3), and an optical fiber connector (402) component is provided at one end of the jumper branch cable (2); The central tube type lightweight pre-assembled optical cable (1) comprises an optical fiber (101), an optical fiber filling paste (102), a loose tube (103), a high-strength aramid yarn (104) and a flame retardant and corrosion resistant sheath (105); the optical fiber (101) and the optical fiber filling paste (102) are inserted into the loose tube (103); the high-strength aramid yarn (104) is SZ-stranded outside the loose tube (103); and a flame retardant and corrosion resistant sheath (105) is extruded outside the high-strength aramid yarn (104); The jumper branch cable (2) comprises an optical fiber hollow tube (201) and an optical fiber sheath tube (202); the optical fiber (101) passes through the corresponding optical fiber hollow tube (201), and the optical fiber sheath tube (202) is then sheathed outside the optical fiber hollow tube (201).

2. The high-strength flame-retardant armored optical fiber jumper according to claim 1, characterized in that: The circular multi-hole brancher (3) is provided with a plurality of circular holes (301), and the jumper branch cables (2) pass through the corresponding circular holes (301).

3. The high-strength flame-retardant armored optical fiber jumper according to claim 1, characterized in that: The optical fiber connector (402) assembly comprises a tail handle (401) and an optical fiber connector (402); the tail handle (401) is inserted into the jumper branch cable (2); and the optical fiber (101) in the jumper branch cable (2) is assembled with the optical fiber connector (402).

4. The high-strength flame-retardant armored optical fiber jumper according to claim 1, characterized in that: The loose tube (103) in the central tube type lightweight pre-assembled optical cable (1) is made of a stainless steel capillary tube, and the wall thickness of the stainless steel capillary tube is 0.5±0.05 mm.

5. The high-strength flame-retardant armored optical fiber jumper according to claim 1, characterized in that: The loose tube (103) is externally SZ-twisted high-strength aramid yarn (104), the specification of which is 333 series, and is composed of 24 multi-strand high-strength aramid yarns (104) tightly twisted together.

6. The high-strength flame-retardant armored optical fiber jumper according to claim 1, characterized in that: The flame retardant and corrosion resistant sheath (105) in the central tube type lightweight pre-assembled optical cable (1) is made of TPU elastic polyurethane material. The extruded sheath has super softness, high flame retardancy, and strong corrosion resistance. The thickness of the sheath is 2.0±0.2 mm.

7. The high-strength flame-retardant armored optical fiber jumper according to claim 1, characterized in that: The optical fiber sheath tube (202) adopts an LSZH low-smoke halogen-free flame-retardant sheath, the outer diameter of the optical fiber sheath tube (202) is 2.0±0.05 mm, and the inner diameter of the optical fiber sheath tube (202) is not less than 1.0 mm.

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