CN109856746B - Butterfly cable - Google Patents

Abstract

The invention discloses a butterfly cable, comprising: a pair of reinforcements and a main part, a pair of reinforcements are respectively arranged on both sides of the main part; the reinforcement part is provided with a sharp edge on one side adjacent to the main part, and the sharp edge is connected to the main part through an adhesive layer. The main parts are connected, the sharp edge protrudes to the inside of the main part, the sharp edge is connected to the extension part, and the extension part is covered on the outer surface of the reinforcement part; the sharp edge and the extension part are made of pressure-resistant material; The foam layer is made of foam material, the foam material is filled with nitrogen, the nitrogen pressure is greater than or equal to 1.5 standard atmospheric pressure, and the optical fiber is arranged in the foam layer; the radial height of the main part is less than or equal to the radial height of the reinforcement. In the present invention, the reinforcement with sharp edges and extension parts is provided, so that the pressure resistance of the reinforcement is better, and at the same time, the sharp edges are connected with the main part through the adhesive layer, so that the sharp edges are more easily separated from the main part, and the main part is separated after separation. Two opposite grooves are formed, and the optical fiber can be obtained by further tearing the foamed layer. The invention is easy to operate and has excellent protection performance.

Description

Butterfly cable

This application is a divisional application with an application date of July 15, 2016, an application number of 201610575292.0, and the name of the invention "butterfly optical cable".

technical field

The invention relates to the field of optical fiber cable production, in particular to a butterfly optical cable.

Background technique

Butterfly optical cable is a new type of user access optical cable. According to the different application environment and laying conditions, the optical cable structure and various technical parameters are reasonably designed, and the characteristics of indoor soft optical cable and self-supporting optical cable are combined. Butterfly optical cable is the best alternative product for FTTX network solution, and plays its unique role in the establishment of intelligent buildings, digital communities, campus networks, local area networks and other networks.

Existing butterfly optical cable: 1) It adopts rounded square, track type, and figure 8 design, and twisting phenomenon often occurs in the process of wiring, and because the butterfly optical cable is a tight structure, it produces stress on the optical fiber and causes optical fiber attenuation. The coefficient increases, reducing the service life of the fiber. 2) There is only a thin layer of plastic between the bottom of the groove of the butterfly cable and the optical fiber, which is prone to water seepage, causing hydrogen loss of the optical fiber, increasing the attenuation coefficient of the optical fiber, and reducing the service life of the optical fiber. 3) The ability to protect the optical fiber is weak.

SUMMARY OF THE INVENTION

The invention provides a butterfly optical cable, which solves the defects of short service life, easy water penetration and weak optical fiber protection capability of the existing butterfly optical cable.

In order to solve the above problems, the present invention discloses a butterfly optical cable, comprising: a pair of reinforcements and a main part, the pair of reinforcements are respectively arranged on both sides of the main part; a pointed edge, the pointed edge is connected with the main part through the adhesive layer, the pointed edge is protruding toward the inner side of the main part, the pointed edge is connected with an extension part, and the extended part is covered on the outer surface of the reinforcement part; the The sharp edge and the extension part are made of pressure-resistant materials; the main part is provided with a foamed layer, the foamed layer is made of foamed material, and the foamed material is filled with nitrogen, and the nitrogen pressure is greater than or equal to 1.5 standard atmospheric pressure , the optical fiber is arranged in the foam layer; the radial height of the main part is less than or equal to the radial height of the reinforcement part. In the present invention, by setting the reinforcing member with sharp edges and extending portions, the radial height of the main member is less than or equal to the radial height of the reinforcing member, so that when the optical cable is subjected to vertical pressure, more force is distributed to the reinforcing member, so that the reinforcement can be strengthened. Pieces have better pressure resistance. At the same time, the sharp edge is connected to the main part through the adhesive layer, so that the sharp edge is easier to separate from the main part, and the main part forms two opposite grooves after separation, which is convenient for peeling again, and the optical fiber can be obtained by further tearing the foam layer. By setting the method of secondary stripping, the stripping direction of the optical fiber is changed, the thickness of the main part is increased, and the protection performance of the optical fiber in the vertical direction is greatly improved. The waterproof penetration performance of the optical fiber is improved by the one-time stripping method perpendicular to the surface of the optical cable, which brings about short service life, easy water seepage, and weak ability to protect the optical fiber, so that the main component can adopt a better protective structure. , excellent protection performance.

Optionally, the sharp edge is composed of two folded pieces, and the two folded pieces intersect to form an acute angle. The sharp edge is composed of two folding blocks, and the two folding blocks intersect to form an acute angle. The contact area between the sharp edge and the main part is smaller, and it is more labor-saving when peeling off the reinforcement and the main part.

Optionally, the upper and lower outer surfaces of the main component are covered with a waterproof and pressure-resistant layer. The waterproof and pressure-resistant layer further improves the protection performance of the main component to the optical fiber.

Optionally, the waterproof and pressure-resistant layer is made of PVC material.

Optionally, the adhesive layer is glue.

Optionally, the outer surface of the optical fiber is also wrapped with a protective film.

Optionally, the protective film adopts waterproof and light-proof paint. For the design using the foam layer (white), the waterproof and opaque coating is used to further improve the reflection performance of the optical fiber, reduce the signal loss caused by the refracted optical fiber, and further improve the waterproof performance.

Compared with the prior art, the technical solution has the following advantages:

In the present invention, by setting the reinforcing member with sharp edges and extending portions, the radial height of the main member is less than or equal to the radial height of the reinforcing member, so that when the optical cable is subjected to vertical pressure, more force is distributed to the reinforcing member, so that the reinforcement can be strengthened. Pieces have better pressure resistance. At the same time, the sharp edge is connected to the main part through the adhesive layer, so that the sharp edge is easier to separate from the main part, and the main part forms two opposite grooves after separation, which is convenient for peeling again, and the optical fiber can be obtained by further tearing the foam layer. By setting the method of secondary stripping, the stripping direction of the optical fiber is changed, and the thickness of the main part is increased, so that the protection performance of the optical fiber in the vertical direction is greatly improved, and the foam layer filled with nitrogen gas with a pressure of 1.5 standard atmosphere or more is used to further improve the optical fiber. The invention improves the defects of short service life, easy water seepage and weak ability to protect the optical fiber caused by the one-time stripping method perpendicular to the surface of the optical cable, so that the main part can adopt a better protective structure, and the present invention is easy to operate, Excellent protection performance.

In addition, the sharp edge is composed of two folded pieces, and the two folded pieces intersect to form an acute angle, and the contact area of the sharp edge with the main piece is smaller, which saves effort when peeling off the reinforcement and the main piece. The waterproof and pressure-resistant layer further improves the protection performance of the main component to the optical fiber. For the design using the foam layer (white), the waterproof and opaque coating is used to further improve the reflection performance of the optical fiber, reduce the signal loss caused by the refracted optical fiber, and further improve the waterproof performance.

Description of drawings

Fig. 1 is the structural representation of the first embodiment of the butterfly 1-shaped optical cable of the present invention;

Fig. 2 is the partial structure schematic diagram of the optical fiber, the foam layer and the protective film of the first embodiment of the butterfly 1-shaped optical cable of the present invention;

3 is a schematic structural diagram of Embodiment 2 of the butterfly 1-shaped optical cable of the present invention.

1. Reinforcement member, 2. Main piece, 3. Edge, 4. Adhesive layer, 5. Extension, 6. Foam layer, 7. Optical fiber, 21. Waterproof and pressure-resistant layer, 31. Folding block, 71, protective film.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below through specific embodiments in conjunction with the accompanying drawings.

Example 1:

The present invention discloses a butterfly optical cable (see Figures 1 and 2), comprising: a pair of reinforcements 1 and a main part 2, the pair of reinforcements 1 are respectively arranged on both sides of the main part 2; the reinforcements 1. A sharp edge 3 is provided on the side adjacent to the main part 2. The sharp edge 3 is connected with the main part 2 through the adhesive layer 4. 5. The extension part 5 is covered on the outer surface of the reinforcement 1; the sharp edge 3 and the extension part 5 are made of pressure-resistant materials; the main part 2 is provided with a foam layer 6, and the foam layer 6 A foamed material is used, the foamed material is filled with nitrogen, the nitrogen pressure is greater than or equal to 1.5 standard atmospheric pressure, and the optical fiber 7 is arranged in the foamed layer 6; the radial height of the main part 2 is less than or equal to the reinforcement 1 radial height. In the present invention, by setting the reinforcing member 1 with the sharp edge 3 and the extension portion 5, the radial height of the main member 2 is less than or equal to the radial height of the reinforcing member 1, so that when the optical cable is subjected to vertical pressure, more force is distributed to the reinforcing member. On the part 1, the pressure resistance of the reinforcement part 1 is better. At the same time, the sharp edge 3 passes through the adhesive layer 4 and the main part 2, so that the sharp edge 3 is easier to separate from the main part 2, and the main part 2 forms two opposite grooves after separation, which is convenient for peeling again and further tearing the foam layer 6, the optical fiber 7 can be obtained. By setting the method of secondary stripping, the stripping direction of the optical fiber 7 is changed, and the thickness of the main component 2 is increased, so that the protection performance of the optical fiber 7 in the vertical direction is greatly improved. The foam layer 6 of nitrogen further improves the waterproof penetration performance of the optical fiber 7, and the present invention makes the defects of short service life, easy water infiltration, and weak ability to protect the optical fiber 7 brought about by a stripping method perpendicular to the surface of the optical cable to be improved, so that the main component is improved. 2. Better protection structure can be adopted, the present invention is easy to operate and has excellent protection performance. In this embodiment, the reinforcing member 1 and other parts of the main member 2 are mainly made of insulating materials.

The sharp edge 3 is composed of two folding blocks 31, and the two folding blocks 31 intersect to form an acute angle. The sharp edge 3 is composed of two folding blocks 31, and the two folding blocks 31 intersect to form an acute angle. The contact area between the sharp edge 3 and the main part 2 is smaller, and it is more labor-saving when peeling off the reinforcement part 1 and the main part 2.

The upper and lower surfaces of the main component 2 are covered with a waterproof and pressure-resistant layer 21 . The waterproof and pressure-resistant layer 21 further improves the protection performance of the main component 2 to the optical fiber 7 . The waterproof and pressure-resistant layer 21 is made of PVC material. The adhesive layer 4 is glue. The outer surface of the optical fiber 7 is also wrapped with a protective film 71 . The protective film 71 is made of waterproof and opaque paint. For the design using the foam layer 6 (white), the waterproof and light-proof paint is used to further improve the reflection performance of the optical fiber 7, reduce the signal loss caused by the refracted optical fiber 7, and further improve the waterproof performance.

Embodiment 2

The pointed edge 3 is a rod-shaped structure in a protruding section, and the top of the pointed edge 3 is provided with a pointed mouth (see FIG. 3 ). The adhesion layer 4 is other materials with low density and low adhesion strength.

When the embodiment of the present invention is implemented, hold the two ends of the reinforcement member and apply force to the left and right respectively to separate the reinforcement member and the main member, and obtain deep openings on both sides of the main member. Bubble material to obtain bare fiber.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can use the methods and technical contents disclosed above to improve the present invention without departing from the spirit and scope of the present invention. The technical solutions are subject to possible changes and modifications. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention belong to the technical solutions of the present invention. protected range.

Claims (5)

1. A butterfly cable, comprising: the pair of reinforcing members are respectively arranged on two sides of the main part; the reinforcing piece is provided with a sharp edge on one side close to the main piece, the sharp edge is connected with the main piece through an adhesive layer, the sharp edge protrudes towards the inner side of the main piece, the sharp edge is connected with an extension part, and the extension part covers the outer surface of the reinforcing piece; the sharp edge and the extension part are made of pressure-resistant materials;

a foaming layer is arranged in the main part, the foaming layer is made of foaming materials, and the optical fibers are arranged in the foaming layer; the radial height of the main part is smaller than that of the reinforcing piece; the sharp edge is formed by two folding blocks which are intersected to form an acute angle; and waterproof pressure-resistant layers are coated on the upper outer surface and the lower outer surface of the main part.

2. A butterfly cable according to claim 1, wherein the waterproof and pressure-resistant layer is of PVC material.

3. A butterfly cable according to claim 1, wherein the adhesive layer is glue.

4. A butterfly cable according to claim 1, wherein the outer surface of the optical fiber is further coated with a protective film.

5. A butterfly cable according to claim 4, wherein the protective membrane is a waterproof, light-tight coating.

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