Bird pecking prevention type all-dielectric self-supporting communication optical cable

Abstract

The utility model relates to the technical field of optical cable equipment, and provides an anti-bird pecking type all-dielectric self-supporting communication optical cable, which comprises an outer protective layer used for protecting the optical cable from environmental damage; the armor layer is arranged in the outer protective layer in a surrounding manner and provides mechanical protection and tensile strength; the inner protection layer is positioned in the armor layer and is used for isolating and fixing an internal structure; and a loose tube is arranged in the inner protective layer. The fiber reinforced composite material rod armor is added between the inner sheath and the outer sheath, so that the bird pecking prevention performance of the optical cable is improved, the risk that the optical fiber is broken by bird pecking is reduced, and the communication quality of the optical cable is improved to a great extent.

Description

Technical Field

[0001] The utility model relates to the technical field of optical cable equipment, in particular to a bird-pecking-proof all-dielectric self-supporting communication optical cable. Background Art

[0002] As the country's efforts to ban looting and protect the environment are increasing, the area of ​​forests is getting larger and larger, and the types and numbers of animals are also increasing. The existing all-dielectric self-supporting optical cables have no anti-bird pecking protection layer. Some birds will peck at the optical cables due to curiosity, foraging or nesting, especially in seasons when food is scarce. Although the outer sheath has a certain durability, it is easy to be pecked at certain weak points or connections, causing the optical fiber to break and affect communication. For this reason, we propose an anti-bird pecking all-dielectric self-supporting communication optical cable. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies of the prior art, the utility model provides a bird-pecking-proof all-dielectric self-supporting communication optical cable, which overcomes the deficiencies of the prior art, has a reasonable design, a compact structure, and solves the problems raised in the background technology.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The bird-pecking-proof all-dielectric self-supporting communication optical cable is characterized by comprising:

[0008] The outer sheath protects the cable from environmental damage;

[0009] The armor layer surrounds the outer sheath and provides mechanical protection and tensile strength;

[0010] The inner sheath is located inside the armor layer and is used to isolate and fix the internal structure;

[0011] A loose tube is arranged in the inner sheath.

[0012] Preferably, it further comprises an aramid layer, which surrounds the inner protective layer and is made of aramid fiber material to provide additional tensile strength and impact protection.

[0013] Preferably, it also includes an inner cushion layer, which surrounds the inner protective layer and is made of soft material to provide cushioning.

[0014] Preferably, it also includes a water-blocking yarn, which surrounds the inner protective layer to form a cavity, and the cavity includes:

[0015] at least one reinforcement member made of high-strength fiber material to withstand tensile and compressive forces;

[0016] At least one loose tube is surrounded on the strength member, and each loose tube contains at least two optical fibers.

[0017] Preferably, the cavity further includes at least one filler core that cooperates with the reinforcement member and the loose tube.

[0018] Preferably, the cavity further comprises cable paste, which is filled in the cavity formed by the water-blocking yarn to prevent direct contact between the reinforcement member and the loose tube and block moisture.

[0019] Preferably, the loose tube also includes fiber paste filled in each loose tube to protect the optical fiber from mechanical damage and external interference.

[0020] Preferably, the armor layer is composed of a plurality of annular glass fiber reinforced components, which surround and adhere closely to the inner wall of the outer protective layer.

[0021] (III) Beneficial effects

[0022] The utility model provides a bird-pecking-proof all-dielectric self-supporting communication optical cable. It has the following beneficial effects:

[0023] 1. Adding a layer of fiber-reinforced composite rod armor between the inner sheath and the outer sheath increases the bird-pecking resistance of the optical cable, reduces the risk of the optical fiber being pecked by birds, and greatly improves the communication quality of the optical cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the process flow of the utility model.

[0026] In the figure: 1. Outer sheath; 2. Armor layer; 3. Inner sheath; 4. Aramid layer; 5. Inner cushion layer; 6. Water-blocking yarn; 7. Cable paste; 8. Core filling; 9. Reinforcement member; 10. Loose tube; 11. Fiber paste; 12. Optical fiber. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Refer to the attached Figure 1-2 , bird-pecking-proof all-dielectric self-supporting communication optical cable, including:

[0029] Outer sheath 1, used to protect the optical cable from environmental damage;

[0030] The armor layer 2 surrounds the outer sheath 1 and provides mechanical protection and tensile strength;

[0031] The inner protective layer 3 is located inside the armor layer 2 and is used to isolate and fix the internal structure;

[0032] A loose tube 10 is arranged inside the inner sheath 3 .

[0033] In this embodiment, an aramid layer 4 is also included, which surrounds the inner protective layer 3 and is made of aramid fiber material to provide additional tensile strength and impact protection.

[0034] In this embodiment, an inner cushion layer 5 is also included, which surrounds the inner protective layer 3 and is made of soft material to provide cushioning.

[0035] In this embodiment, a water-blocking yarn 6 is further included, which surrounds the inner protective layer 3 to form a cavity, and the cavity includes:

[0036] at least one reinforcement member 9, made of high-strength fiber material to withstand tensile and compressive forces;

[0037] At least one loose tube 10 is surrounded on the reinforcement member 9, and each loose tube 10 contains at least two optical fibers 12, wherein the aramid layer 4 and the inner cushion layer 5 are arranged between the inner protective layer 3 and the water-blocking yarn 6, and which of the aramid layer 4 and the inner cushion layer 5 is the outermost layer can be adjusted according to needs.

[0038] In this embodiment, the cavity further includes at least one core filler 8 that cooperates with the reinforcement member 9 and the loose tube 10 .

[0039] In this embodiment, the cavity further includes a cable paste 7 which is filled in the cavity formed by the water-blocking yarn 6 to prevent direct contact between the reinforcement member 9 and the loose tube 10 and to block moisture.

[0040] In this embodiment, the loose tube 10 further includes a fiber paste 11 filled in each loose tube 10 to protect the optical fiber 12 from mechanical damage and external interference.

[0041] In this embodiment, the armor layer 2 is composed of a plurality of annular glass fiber reinforced components, surrounding and closely attached to the inner wall of the outer sheath 1 .

[0042] Product process flow:

[0043] Fiber coloring - loose tube - SZ cabling - inner cushion layer 5 - aramid wrapping - inner protection - FRP armor - sheath.

[0044] Fiber Coloring:

[0045] The optical fiber is colored in the full spectrum: blue, orange, green, brown, gray, white, etc., and the coloring uses 265um / 262um molds.

[0046] Loose tube 10:

[0047] Diameter of loose tube 10: 2.2 / 1.5mm; excess length of loose tube 10 is controlled within 0.08-0.15%. SZ cabling:

[0048] One FRP in the center: φ2.3mm; 4 outer layers of 2.2 / 1.5mm loose tubes 10 + 2 2.2mm filling ropes, twisted pitch: 65±3mm; binding yarn wrapping pitch: 15±5mm, 2 binding yarns; water-blocking yarn 6 wrapping pitch: 18±5mm one, and then a water-blocking yarn 6 is flatly dragged; the outer diameter of the SZ cable is controlled at: 6.7±0.1mm.

[0049] MDPE lining:

[0050] Mold core: 8.0mm, mold sleeve: 12.5mm, nominal thickness of lining layer: 0.8mm, thinnest thickness: 0.6mm, outer diameter of lining layer controlled at: 8.3±0.2mm.

[0051] Aramid wrapping:

[0052] Aramid specification: 6440, number of strands: 18, twisting pitch: 500±20mm, twisting direction: left, paralleling mode: 9.2mm, the outer diameter of the aramid wrapping is controlled at: 9.0±0.2mm.

[0053] MDPE inner sheath:

[0054] Mold core: 10.3mm, mold sleeve: 15.0mm, nominal thickness of inner protective layer 3 1.0mm, thinnest thickness: 0.8mm, outer diameter of inner protective layer 3 controlled at 11.0±0.2mm.

[0055] FRP Armor:

[0056] FRP diameter: 1.2mm, number of strands: 29, twist pitch: 150±10mm, twist direction: left, working tension: 6±2kg, FRP armor outer diameter is controlled at: 13.4±0.2mm.

[0057] MDPE outer sheath

[0058] Mold core: 14.0mm, mold sleeve: 18.0mm, outer sheath nominal thickness 1.8mm, average thickness: ≥1.7mm, thinnest thickness: 1.5mm, outer diameter of outer sheath controlled at 17.0±0.2mm.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Bird-pecking-proof all-dielectric self-supporting communication optical cable, characterized in that: include: An outer sheath (1) for protecting the optical cable from environmental damage; An armor layer (2) surrounding the outer sheath (1) and providing mechanical protection and tensile strength; An inner protective layer (3), located inside the armor layer (2), and used to isolate and fix the internal structure; A loose tube (10) is arranged inside the inner protective layer (3); The armor layer (2) is composed of a plurality of annular glass fiber reinforced components, surrounding and closely attached to the inner wall of the outer protective layer (1).

2. The bird-pecking-proof all-dielectric self-supporting communication optical cable according to claim 1, characterized in that: It also includes an aramid layer (4) surrounding the inner protective layer (3) and made of aramid fiber material to provide additional tensile strength and impact protection.

3. The bird-pecking-proof all-dielectric self-supporting communication optical cable according to claim 1, characterized in that: It also includes an inner cushion layer (5) surrounding the inner protective layer (3), which is made of a soft material and provides cushioning.

4. The bird-pecking-proof all-dielectric self-supporting communication optical cable according to claim 1, characterized in that: It also includes a water-blocking yarn (6) which surrounds the inner protective layer (3) to form a cavity, wherein the cavity includes: at least one reinforcement member (9) made of high-strength fiber material to withstand tensile and compressive forces; At least one loose tube (10) is surrounded by the strength member (9), and each loose tube (10) contains at least two optical fibers (12).

5. The bird-pecking-proof all-dielectric self-supporting communication optical cable according to claim 4, characterized in that: The cavity also includes at least one core filler (8) which cooperates with the reinforcement member (9) and the loose tube (10).

6. The bird-pecking-proof all-dielectric self-supporting communication optical cable according to claim 4, characterized in that: The cavity also includes: cable paste (7), which is filled in the cavity formed by the water-blocking yarn (6) to prevent direct contact between the reinforcement member (9) and the loose tube (10) and to block moisture.

7. The bird-pecking-proof all-dielectric self-supporting communication optical cable according to claim 4, characterized in that: The loose tube (10) also includes fiber paste (11), which is filled in each loose tube (10) to protect the optical fiber (12) from mechanical damage and external interference.

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