Strip-shaped self-supporting pipeline rubber-covered wire optical cable

Abstract

The utility model provides a band-shaped self-supporting pipeline rubber-covered wire optical cable, a suspension cable and cable cores are also arranged in parallel, an outer sheath is formed in a band shape and integrally wraps and fixes all the cable cores and the suspension cable, a safe distance is arranged between the suspension cable and the cable cores, a concave strip is formed at a position, corresponding to the safe distance, of the outer sheath, and the concave strip is connected with the outer sheath. The whole outbound sleeve is of a flat strip-shaped structure. The cable core is a central area for protecting the optical fiber, the cable core is in parallel linear arrangement, and the outer sheath is matched to form a band shape, so that the overall appearance thickness can be reduced, corner turning and threading are facilitated, the suspension cables are synchronously arranged on the optical cable, the suspension cables are also arranged in parallel, the appearance is not influenced, the suspension capability of the optical cable can be improved, and the service life of the optical cable is prolonged. Influence on transmission media of the optical cable is reduced and service life of the optical cable is prolonged.

Description

Technical Field

[0001] The utility model relates to an improvement on the structure of a communication optical cable, in particular to a ribbon-shaped self-supporting pipeline sheathed optical cable. Background Art

[0002] Optical cable is a communication infrastructure that uses optical fiber as the transmission medium. Optical cable also needs to have different structures according to different working scenarios. In large-span deployment scenarios, optical cables need to be suspended for a long distance. Optical cables have their own weight and will sag naturally, which will cause a certain amount of pulling on the optical fiber and cause deformation. Long-term suspension will increase signal attenuation. In addition, large-span suspension will also be affected by debris, which will aggravate the pulling of the optical cable. Therefore, the optical cable needs to have a certain degree of self-strength. In addition, conventional bundled optical cable structures have difficulty passing through narrow gaps, so there is also a need for improvement. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a ribbon-shaped self-supporting duct sheathed optical cable.

[0004] The technical solution adopted by the utility model to solve the above-mentioned problem is: the optical cable includes a cable core, a suspension cable and an outer sheath, the cable core is arranged in two or more, and is parallel and arranged in parallel to each other, the suspension cable and the cable core are also arranged in parallel, the outer sheath is formed into a belt shape, and integrally wraps and fixes all the cable cores and the suspension cable, a safety distance is set between the suspension cable and the cable core, the outer sheath is formed with a recessed strip at the position corresponding to the safety distance, and the outer sheath is formed into a flat belt structure as a whole. The cable core is the central area to protect the optical fiber, the cable core is arranged in parallel linearly, and the outer sheath is formed into a belt shape, which can reduce the overall thickness of the appearance, facilitate cornering and threading, and the optical cable is synchronously provided with a suspension cable, which is also arranged in parallel, does not affect the appearance, and can improve the suspension capacity of the optical cable, reduce the impact on the transmission medium of the optical cable, and extend the life of the optical cable.

[0005] Furthermore, the cable core includes an optical fiber and an inner sheath, wherein the optical fiber is wrapped in the inner sheath, and the outer portion of the inner sheath is surrounded and fixed by the outer sheath. The optical fiber is surrounded and fixed by the inner sheath alone to form reliable protection, and the inner sheath is fixed and positioned by the outer sheath to avoid deformation.

[0006] Furthermore, a retainer is provided between the cable cores, the retainer has a concave body for accommodating the outer shape of the cable core, both sides of the retainer are in contact with the cable core, the end of the retainer extends outward and is contained and fixed with the outer sheath, a cable core holding space is formed between the retainers, and the cable core is accommodated and arranged in the holding space. The function of the retainer is to maintain the relative distance between the cable cores, reduce the mutual extrusion between the cable cores, avoid compression deformation, and improve the stability of the optical cable shape.

[0007] Furthermore, the suspension cable is made of steel wire cable or polymer fiber cable, which is synchronously extended with the cable core, and the suspension cable is uniformly surrounded by the outer sheath. The suspension cable selects appropriate cable materials according to the specifications of the optical cable. The polymer fiber cable is light in weight and can be suitable for small-sized optical cables.

[0008] Furthermore, an oblong cable core space is formed in the outer sheath, the cable cores are evenly arranged in the cable core space, and the outer sheath is formed by hot-melt molding of low-smoke halogen-free material. The outer sheath is made of low-smoke halogen-free material, has the effect of flame retardancy and fire resistance, avoids the generation of harmful gases, and has a good protective and isolating effect on the cable core.

[0009] Compared with the prior art, the utility model has the following advantages and effects: the design is a strip-shaped self-supporting optical cable structure, which has a good hanging installation function and reduces the deformation of the optical cable. The strip-shaped structure is convenient for surface laying and can pass through a small area. It has better freedom of laying and is applicable to more scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of the optical cable cross-section direction.

[0011] Figure 2 It is a schematic diagram of the structure of the optical cable from the side.

[0012] In the figure: 1, cable core, 2, suspension cable, 3, outer sheath, 4, recessed strip, 5, optical fiber, 6, inner sheath, 7, retaining frame. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0014] A belt-shaped self-supporting pipe sheathed optical cable, the optical cable includes a cable core 1, a suspension cable 2 and an outer sheath 3, the cable cores 1 are arranged in two or more, and are parallel and arranged side by side, the suspension cables 2 and the cable cores 1 are also arranged side by side, the outer sheath 3 is formed into a belt shape, and integrally wraps and fixes all the cable cores 1 and the suspension cables 2, a safety distance is set between the suspension cables 2 and the cable core 1, a recessed strip 4 is formed on the outer sheath at a position corresponding to the safety distance, and the outer sheath as a whole is formed into a flat belt-shaped structure.

[0015] The cable core 1 includes an optical fiber 5 and an inner sheath 6 . The optical fiber 5 is wrapped in the inner sheath 6 , and the outer portion of the inner sheath 6 is surrounded and fixed by the outer sheath 3 .

[0016] A retaining frame 7 is arranged between the cable cores 1. The retaining frame 7 has a recessed body for accommodating the outer shape of the cable core 1. Both sides of the retaining frame 7 are in contact with the cable core 1. The ends of the retaining frame 7 extend outward and are enclosed and fixed with the outer sheath 3. A cable core 1 maintaining space is formed between the retaining frames 7, and the cable core 1 is accommodated and arranged in the maintaining space.

[0017] The suspension cable 2 is made of a steel cable or a polymer fiber cable, which is extended synchronously with the cable core 1 , and the suspension cable 2 is evenly surrounded by the outer sheath 3 .

[0018] An oblong cable core space is formed in the outer sheath 3, and the cable cores 1 are evenly arranged in the cable core space. The outer sheath 3 is formed by hot-melt molding of low-smoke halogen-free material.

[0019] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary rather than restrictive. The scope of the present invention is defined by the claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim involved.

[0020] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A ribbon-shaped self-supporting duct-cored optical cable, characterized in that: The optical cable comprises a cable core (1), a suspension cable (2) and an outer sheath (3). The cable cores (1) are arranged in two or more parallel and parallel arrangements. The suspension cables (2) and the cable cores (1) are also arranged in parallel. The outer sheath (3) is formed into a strip shape and integrally wraps and fixes all the cable cores (1) and the suspension cables (2). A safety distance is provided between the suspension cables (2) and the cable core (1). A recessed strip (4) is formed on the outer sheath at a position corresponding to the safety distance. The outer sheath as a whole is formed into a flat strip structure.

2. The ribbon-shaped self-supporting duct-covered optical cable according to claim 1, characterized in that: The cable core (1) comprises an optical fiber (5) and an inner sheath (6); the optical fiber (5) is wrapped in the inner sheath (6), and the outside of the inner sheath (6) is surrounded and fixed by the outer sheath (3).

3. The ribbon-shaped self-supporting duct-covered optical cable according to claim 1, characterized in that: A retaining frame (7) is arranged between the cable cores (1), the retaining frame (7) having a recessed body for accommodating the outer shape of the cable core (1), both sides of the retaining frame (7) are in contact with the cable core (1), the end of the retaining frame (7) extends outwards and is contained and fixed to the outer sheath (3), a cable core (1) maintaining space is formed between the retaining frames (7), and the cable core (1) is accommodated and arranged in the maintaining space.

4. The ribbon-shaped self-supporting duct-covered optical cable according to claim 1, characterized in that: The suspension cable (2) is made of a steel cable or a polymer fiber cable, which is extended synchronously with the cable core (1), and the suspension cable (2) is evenly surrounded by the outer sheath (3).

5. The ribbon-shaped self-supporting duct-covered optical cable according to claim 1, characterized in that: An oblong cable core space is formed in the outer sheath (3), and the cable cores (1) are evenly arranged in the cable core space. The outer sheath (3) is formed by hot-melt molding of low-smoke halogen-free material.

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