CN215575838U - Combinable fireproof optical cable - Google Patents

Abstract

The utility model relates to a combinable fireproof optical cable which comprises an optical cable framework and a cable core, wherein the optical cable framework comprises a supporting rod and a plurality of supports which are circumferentially distributed at intervals on the periphery of the supporting rod, the cable core comprises a plurality of optical fiber bundles, the optical fiber bundles are arranged in the supports in a penetrating mode in a one-to-one correspondence mode, a halogen-free flame-retardant inner sheath is wrapped on the outer sides of the supports, a compression-resistant layer is arranged on the outer side of the halogen-free flame-retardant inner sheath, a shielding layer is arranged on the outer side of the compression-resistant layer, an outer sheath is wrapped on the outer side of the shielding layer, a compression-resistant structure is arranged in the compression-resistant layer, a plug-buckle part is arranged on one side of the outer sheath along the length direction of the outer sheath, and a matching part which can be matched with the plug-buckle part is arranged on the other side of the outer sheath along the length direction of the outer sheath. The combined fireproof optical cable is mainly used for providing a combined fireproof optical cable which is high in structural strength, stable and efficient in transmission performance and capable of combining and fixing a plurality of optical cables.

Description

Combinable fireproof optical cable

Technical Field

The utility model relates to an optical cable, in particular to a combinable fireproof optical cable.

Background

With the development of science and technology and the progress of society, people have higher and higher requirements on communication, so that a communication network gradually turns to an optical cable which can transmit massive bandwidth. Also, the optical cable is lighter and smaller, so the optical cable has a wide range of applications. However, the existing optical cable is generally made of non-metal parts, so that the cable core is easily damaged greatly when being subjected to high-voltage impact, and even signal interruption or line damage is directly caused, and the use cost is additionally increased. Meanwhile, due to the popularization of a communication network, a plurality of optical cables need to be used in some places at the same time, are in an unordered state and are easy to disorder and knot, are not easy to arrange and are not easy to overhaul.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide the combinable fireproof optical cable which has high structural strength and stable and efficient transmission performance and can be formed by mutually combining and fixing a plurality of optical cables.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

the utility model provides a can modular fire prevention optical cable, includes optical cable skeleton and cable core, the optical cable skeleton includes bracing piece and a plurality of support of circumference interval distribution in the bracing piece periphery, the cable core includes a plurality of fiber bundle, and a plurality of fiber bundle one-to-one wears to locate in a plurality of support, a plurality of the support outside cladding has the fire-retardant inner sheath of steamed, the fire-retardant inner sheath outside of steamed is provided with the resistance to compression layer, the resistance to compression layer outside is provided with the shielding layer, the shielding layer outside cladding has the oversheath, be equipped with compressive structures in the resistance to compression layer, oversheath one side is equipped with the eye-splice portion along its self length direction, and the opposite side is equipped with along its self length direction can with eye-splice portion eye-splice complex cooperation portion.

Further, a flame-retardant layer and a corrosion-resistant layer are sequentially arranged between the shielding layer and the outer sheath from inside to outside.

Furthermore, a reinforced alloy core is arranged in the support rod.

Furthermore, the cross section structure of the bracket is a structure with two narrow ends and a wide middle part, and the optical fiber bundle is positioned in the middle part of the bracket.

Further, the anti-pressure structure includes a plurality of triangle-shaped anti-pressure structures that are the annular and distribute, and the pointed end of this triangle-shaped anti-pressure structure is towards the oversheath.

Furthermore, the inserting and buckling part is provided with an inverted hook-shaped inserting and buckling part, and the matching part is provided with a jack which is matched with the inserting and buckling part.

Furthermore, the positions, corresponding to the buckle inserting portion and the matching portion, in the outer sheath are respectively provided with a first reinforcing piece with an arc-shaped cross section, the middle of the outer side of the first reinforcing piece is connected with a second reinforcing piece, and the second reinforcing piece extends into the buckle inserting portion and the matching portion.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the compression resistance and the structural strength of the optical cable are greatly improved by improving the structures of the compression-resistant layer and the optical cable framework, so that the pressure transmitted to the cable core is greatly reduced, and the condition that the cable core is subjected to excessive impact or pressure to cause signal interruption or circuit damage is avoided; in addition, by arranging the inserting and buckling parts and the matching parts, a plurality of optical cables with the same structure can be matched and fixed with one another, the ordering is tidy and not disordered, the transmission performance is more stable, and the subsequent overhaul and maintenance are more convenient; the whole structure design is ingenious and reasonable, the service performance is obvious and stable, and the service life is long.

Drawings

FIG. 1 is a schematic structural view of a combinable fireproof optical cable according to the present invention;

wherein, 1, optical cable skeleton; 101. a support bar; 102. a support; 2. a cable core; 3. a filling layer; 4. a halogen-free flame-retardant inner sheath; 5. a pressure resistant layer; 6. a shielding layer; 7. an outer sheath; 8. a fitting portion; 9. a buckle part; 10. reinforcing plates I; 11. and a second reinforcing sheet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

It should be noted that, in the description of the technical solutions of the present invention, directional terms used for clearly describing technical features of the present invention, such as "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", etc., are all in accordance with the orientation of the drawings of the present invention.

Examples

As shown in fig. 1, the combinable fireproof optical cable of the embodiment includes an optical cable framework 1 and a cable core 2, the optical cable framework 1 includes a support rod 101 and a plurality of brackets 102 circumferentially distributed at the periphery of the support rod 101 at intervals, the support rod 101 is of a cylindrical structure, a reinforced alloy core is arranged in the support rod 101, and the reinforced alloy core is made of memory alloy wires and used for improving the overall structural strength and bending resistance of the optical cable. The cable core 2 comprises a plurality of optical fiber bundles, the plurality of optical fiber bundles are arranged in the plurality of supports 102 in a penetrating mode in a one-to-one mode, specifically, the supports 102 are five, the optical fiber bundles are connected to the periphery of the supporting rod 101 at intervals evenly, the cross section structure of the supports 102 is a structure with two narrow ends and a middle wide width, a protection bundle pipe is wrapped outside each optical fiber bundle, and the optical fiber bundles wrapped with the protection bundle pipes are installed in the middle of the supports 102. The halogen-free flame-retardant inner sheaths 4 are coated on the outer sides of the five brackets 102, filling layers 3 are filled in spaces surrounded by the halogen-free flame-retardant inner sheaths 4 and the five brackets 102, and the filling layers 3 are flame-retardant rubber layers and are formed by mixing thermoplastic elastomers, unsaturated rubber, halogen-free flame retardants and additives. Halogen-free flame-retardant inner sheath 4 outside is provided with anti-pressure layer 5, the 5 outside in anti-pressure layer is provided with shielding layer 6, be equipped with the compressive structure that rubber materials or silica gel material made in the anti-pressure layer 5, compressive structure includes a plurality of triangle-shaped compressive structure that are the annular distribution, this triangle-shaped compressive structure's most advanced orientation oversheath 7, the butt is in 6 inboards in shielding layer promptly, adopt this kind of triangle-shaped compressive structure, when pressure conduction to anti-pressure layer 5, pressure effect point conducts to triangle-shaped most advanced earlier, triangle-shaped most advanced pressurized produces the deformation, and then play the cushioning effect, and pressure conducts to the bottom from triangle-shaped most advanced, the conduction process is by the point to the face, pressure is dispersed gradually and is weakened, thereby effectively weaken pressure, improve the compressive property of optical cable. The shielding layer 6 is composed of tin-plated copper tows and high-density fiber yarn tows, electromagnetic interference can be effectively shielded, transmission performance is guaranteed, and meanwhile structural strength of the optical cable can be improved. The outer side of the shielding layer 6 is coated with an outer sheath 7, and the outer sheath 7 is a polyethylene outer sheath.

In addition, a flame retardant layer and a corrosion resistant layer are sequentially arranged between the shielding layer 6 and the outer sheath 7 from inside to outside. The flame-retardant layer is made of a magnesium hydroxide inorganic flame retardant, and the corrosion-resistant layer is made of a polytetrafluoroethylene material and is used for improving the corrosion resistance of the optical cable.

In this embodiment, one side of the outer sheath 7 is provided with a buckle part 9 along its length direction, and the other side is provided with a matching part 8 which can be matched with the buckle part 9 in a buckle way along its length direction. Specifically, the insertion part 9 is provided with a barb-type insertion buckle, and the mating part 8 is provided with a jack which is fitted to the insertion buckle. By adopting the structure, the optical cables with the same structures can be mutually spliced, matched and fixed through the plug-in buckle part 9 and the matching part 8, and the optical cable splicing and matching device is applied to occasions where the optical cables need to be laid, so that the optical cables are orderly and disorderly arranged, and the subsequent maintenance is convenient. In addition, the positions corresponding to the buckle part 9 and the matching part 8 in the outer sheath 7 are respectively provided with a first reinforcing sheet 10 with an arc-shaped cross section, the middle part of the outer side of the first reinforcing sheet 10 is connected with a second reinforcing sheet 11, and the second reinforcing sheet 11 extends into the buckle part 9 and the matching part 8. By adopting the structure, the connection strength between the outer sheath 7 and the inserting buckle part 9 and the matching part 8 is enhanced through the first reinforcing sheet 10 and the second reinforcing sheet 11, so that the use is more stable and the service life is long.

According to the combined fireproof optical cable, the compression resistance and the structural strength of the optical cable are greatly improved by improving the structures of the compression-resistant layer 5 and the optical cable framework 1, so that the pressure transmitted to the cable core 2 is greatly reduced, and the condition that the cable core 2 is subjected to excessive impact or pressure to cause signal interruption or circuit damage is avoided; in addition, by arranging the inserting and buckling part 9 and the matching part 8, a plurality of optical cables with the same structure can be matched and fixed with one another, the ordering is tidy and not disordered, the transmission performance is more stable, and the subsequent overhaul and maintenance are more convenient; the whole structure design is ingenious and reasonable, the service performance is obvious and stable, and the service life is long.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.

Claims (7)

1. A combinable fireproof optical cable is characterized in that: comprises an optical cable framework (1) and a cable core (2), wherein the optical cable framework (1) comprises a support rod (101) and a plurality of brackets (102) which are circumferentially distributed at intervals on the periphery of the support rod (101), the cable core (2) comprises a plurality of optical fiber bundles which are correspondingly arranged in the brackets (102) in a penetrating way, the outer sides of a plurality of brackets (102) are coated with halogen-free flame-retardant inner sheaths (4), the outer side of the halogen-free flame-retardant inner sheath (4) is provided with a pressure resistant layer (5), the outer side of the pressure resistant layer (5) is provided with a shielding layer (6), an outer sheath (7) is coated outside the shielding layer (6), a compression-resistant structure is arranged in the compression-resistant layer (5), one side of the outer sheath (7) is provided with a buckle part (9) along the length direction of the outer sheath, and the other side of the outer sheath is provided with a matching part (8) which can be matched with the buckle part (9) in a buckle way along the length direction of the outer sheath.

2. A combinable fire optical cable according to claim 1, wherein: and a flame-retardant layer and a corrosion-resistant layer are sequentially arranged between the shielding layer (6) and the outer sheath (7) from inside to outside.

3. A combinable fire optical cable according to claim 2, wherein: a reinforced alloy core is arranged in the supporting rod (101).

4. A combinable fire optical cable according to claim 3, wherein: the cross section structure of the bracket (102) is a structure with two narrow ends and a wide middle part, and the optical fiber bundle is positioned in the middle of the bracket (102).

5. A combinable fire optical cable according to claim 1, wherein: the compression-resistant structure comprises a plurality of triangular compression-resistant structures distributed in an annular shape, and the tips of the triangular compression-resistant structures face the outer sheath (7).

6. A combinable fire optical cable according to claim 1, wherein: the plug-in buckle part (9) is provided with a reverse hook type plug-in buckle, and the matching part (8) is provided with a jack matched with the plug-in buckle.

7. A combinable fire optical cable according to claim 6, wherein: the positions of the inner corresponding buckle part (9) and the matching part (8) of the outer sheath (7) are respectively provided with a first reinforcing sheet (10) with an arc-shaped cross section, the middle part of the outer side of the first reinforcing sheet (10) is connected with a second reinforcing sheet (11), and the second reinforcing sheet (11) extends into the buckle part (9) and the matching part (8).

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