阅读说明：本技术 加强型扁平光缆 (Reinforced flat optical cable ) 是由 王志强 李为 谢松华 王首佳 陈健 石小龙 彭辉 冯凌玉 王晓珍 张得怀 于 2018-08-26 设计创作，主要内容包括：本发明属于通信光缆技术领域,涉及一种加强型扁平光缆。2～12根光纤置于松套管内并填充纤膏,非金属复合带包覆在松套管上组成圆形横截面缆芯,2条互相平行的加强件分别对称置于缆芯两侧,扁平的护套以缆芯为中心把缆芯和加强件一起包覆,在护套的上、下平面上各有2条纵向且互相平行对称设置的侧楞,侧楞的横截面为等腰三角形,侧楞和护套为在同一个模具中挤制而成的一体结构。本发明中,侧楞减小了扁平光缆安装敷设时的摩擦力,易于敷设安装；缆芯包带层的FRP非金属复合带和玻璃纤维棒加强件,增加了光缆的抗拉、抗压以及抗弯曲性能；光缆的全介质结构,能防雷电侵袭。本发明适用于居民小区、机房、室外管道间的信号传输。(The invention belongs to the technical field of communication optical cables, and relates to a reinforced flat optical cable. The optical fiber cable comprises a loose tube, 2-12 optical fibers, a non-metal composite belt, a cable core, 2 reinforcing pieces, flat sheaths and an integral structure, wherein the loose tube is internally filled with fiber paste, the non-metal composite belt is coated on the loose tube to form a cable core with a circular cross section, the 2 reinforcing pieces which are parallel to each other are symmetrically arranged on two sides of the cable core respectively, the flat sheaths coat the cable core and the reinforcing pieces together by taking the cable core as a center, the upper plane and the lower plane of each sheath are respectively provided with 2 longitudinal side edges which are symmetrically arranged in parallel to each other, the cross sections of the side edges are isosceles triangles, and. In the invention, the side edges reduce the friction force when the flat optical cable is installed and laid, and the flat optical cable is easy to lay and install; the FRP nonmetal composite belt and the glass fiber rod reinforcing piece of the cable core belting layer increase the tensile, compression and bending resistance of the optical cable; the all-dielectric structure of the optical cable can prevent lightning invasion. The invention is suitable for signal transmission among residential areas, machine rooms and outdoor pipelines.)

1. A reinforced flat optical cable is characterized in that the reinforced flat optical cable is composed of optical fibers (1), fiber paste (2), a loose tube (3), a non-metal composite tape (4), a reinforcing piece (5), a sheath (6) and side edges (7), 2-12 optical fibers (1) are arranged in the loose tube (3), the loose tube (3) is further filled with the fiber paste (2), the non-metal composite tape (4) is coated on the loose tube (3) to form a cable core with a circular cross section, on the same diameter extension line of the cable core, the reinforcing pieces (5) with 2 circular cross sections are parallel to the cable core and are symmetrically arranged on the left side and the right side of the cable core respectively, the flat sheath (6) takes the cable core as a center to coat the cable core and the reinforcing pieces (5) together, the outer surface of the sheath (6) is composed of an upper plane, a lower plane, a left side surface and a right side surface, the upper plane and the lower plane of the sheath (6) are parallel to each other, the left side surface and the right side surface of the sheath (6) are semi-cylindrical surfaces which are symmetrical to each other, a generatrix of a cylinder on the left side surface is parallel to a generatrix of a cylinder on the right side surface, 2 longitudinal side edges (7) are respectively arranged on an upper plane and a lower plane of the sheath (6), 2 side edges (7) on the upper plane are symmetrically arranged and are parallel to each other, 2 side edges (7) on the lower plane are also symmetrical to 2 side edges (7) on the lower plane, and the cross sections of the side edges (7) are isosceles triangles; the side edges (7) and the sheath (6) are of an integral structure formed by extrusion in the same die;

the non-metal composite belt (4) is made of fiber reinforced composite material;

the reinforcing piece (5) is a glass fiber rod.

2. A reinforced flat cable according to claim 1, characterized in that the optical fibers (1) are ordinary optical fibers.

3. A reinforced flat cable according to claim 1, characterized in that the fiber paste (2) is a flame retardant fiber paste.

4. A reinforced flat cable according to claim 1, characterized in that the material of the loose tube (3) is polybutylene terephthalate.

5. A reinforced flat cable according to claim 1, characterized in that the material of the jacket (6) and the side edges (7) is nylon jacket material.

Technical Field

The invention belongs to the technical field of communication optical cables, and particularly relates to a reinforced flat optical cable.

Background

Along with the development of the optical fiber to the home, the optical fiber communication network replaces a copper wire communication network to continuously extend to the terminal, the structure of the optical cable is continuously improved, a new variety of optical cable is continuously pushed out, the optical cable is converted into a form that the traditional structure is mainly used as the auxiliary structure from the traditional structure form, but the structural change of the optical cable is always not suitable for the requirement of the laying environment of a user and the requirements of convenience and rapidness in construction, cost reduction and resource saving.

In frequent moving and bending dragging occasions, the strength of the flat optical cable of the existing various optical cable products cannot meet the actual requirement. Therefore, there is a need for a high strength flat cable that meets the requirements of frequent moving and bending towing applications.

Disclosure of Invention

The invention aims to solve the problem of background technology, provides a reinforced flat optical cable, and provides a high-strength flat optical cable meeting the requirements of frequent moving and bending dragging occasions.

The technical scheme of the invention is as follows:

the reinforced flat optical cable is composed of optical fibers 1, fiber paste 2, a loose tube 3, a non-metal composite tape 4, a reinforcing piece 5, a sheath 6 and side edges 7, 2-12 optical fibers 1 are arranged in the loose tube 3, the loose tube 3 is also filled with the fiber paste 2, the non-metal composite tape 4 is coated on the loose tube 3 to form a cable core with a circular cross section, on the same diameter extension line of the cable core, 2 reinforcing pieces 5 with the circular cross section are parallel to the cable core and are symmetrically arranged on the left side and the right side of the cable core respectively, the flat sheath 6 takes the cable core as the center to coat the cable core and 2 reinforcing pieces 5 together, the outer surface of the sheath 6 is composed of an upper plane, a lower plane, a left side surface and a right side surface, the upper plane and the lower plane of the sheath 6 are parallel to each other and are symmetrical to each other, the left side surface and the right side surface of the sheath 6 are semi-cylindrical surfaces which are symmetrical to each other, and the bus, 2 longitudinal side edges 7 are respectively arranged on the upper plane and the lower plane of the sheath 6, the 2 side edges 7 on the upper plane are mutually symmetrically arranged and are mutually parallel, the 2 side edges 7 on the lower plane are also mutually symmetrical with the 2 side edges 7 on the lower plane, and the cross sections of the side edges 7 are isosceles triangles; the side edges 7 and the sheath 6 are of an integral structure formed by extrusion in the same die, and the flat optical cable with the side edge structural design reduces friction force during installation and laying and is easy to lay and install;

the optical fiber 1 is a common optical fiber;

the fiber paste 2 is flame-retardant fiber paste and has better flame-retardant and water-blocking properties;

the loose tube 3 is made of polybutylene terephthalate;

the non-metal composite belt 4 is a Fiber Reinforced Polymer/Plastic (FRP), the FRP is a high-performance material formed by mixing a Fiber material and a base material (resin) in proportion, and the FRP is light and hard, is non-conductive, high in mechanical strength, corrosion-resistant, and has good mechanical performance and water resistance;

the reinforcing pieces 5 are glass fiber rods and are arranged on two sides of the cable core, so that the tensile resistance and the bending resistance are good;

the sheath 6 and the side edges 7 are made of nylon sheath materials and have good mechanical properties.

The invention has the beneficial effects that the flat sheath is adopted, compared with the common optical cable with the circular cross section, the volume of the optical cable is reduced by 30 percent, the material is saved, and the production efficiency is improved; the unique side ridge design is adopted, so that the friction between the side ridge and the ground or an installation frame during installation and laying is reduced, and the installation and the laying are facilitated; the non-metal composite belt 4 of the belting layer of the cable core adopts FRP, and the reinforcement 5 adopts a glass fiber rod, so that the tensile resistance, the compression resistance and the bending resistance of the optical cable are improved; the sheath is made of nylon sheath material, so that the mechanical property is good and no pollution is caused; all-dielectric structure, lightning attack prevention. The invention is suitable for residential areas, machine rooms and outdoor pipelines, and can efficiently transmit signals.

Drawings

Fig. 1 is a schematic cross-sectional view of a reinforced flat cable.

In the figure, 1 is an optical fiber, 2 is a fiber paste, 3 is a loose tube, 4 is a non-metal composite tape, 5 is a reinforcing piece, 6 is a sheath layer, and 7 is a side edge.

Detailed Description

The invention is further illustrated below with reference to examples and figures.

This embodiment is a reinforced flat optical cable and a method for producing the same, and fig. 1 is a schematic cross-sectional view of a reinforced flat optical cable.

The reinforced flat optical cable is composed of optical fibers 1, fiber paste 2, a loose tube 3, a non-metal composite tape 4, a reinforcing piece 5, a sheath 6 and side edges 7, 10 optical fibers 1 are arranged in the loose tube 3, the loose tube 3 is also filled with the fiber paste 2, the non-metal composite tape 4 is coated on the loose tube 3 to form a cable core with a circular cross section, on the same diameter extension line of the cable core, 2 reinforcing pieces 5 with the circular cross section are all parallel to the cable core and are symmetrically arranged on the left side and the right side of the cable core respectively, the flat sheath 6 coats the cable core and 2 reinforcing pieces 5 together by taking the cable core as a center, the outer surface of the sheath 6 is composed of an upper plane, a lower plane, a left side surface and a right side surface, the upper plane and the lower plane of the sheath 6 are parallel and are symmetrical to each other, the left side surface and the right side surface of the sheath 6 are semi-cylindrical surfaces which are symmetrical to each other, and the generatrix of, 2 longitudinal side edges 7 are respectively arranged on the upper plane and the lower plane of the sheath 6, the 2 side edges 7 on the upper plane are mutually symmetrically arranged and are mutually parallel, the 2 side edges 7 on the lower plane are mutually symmetrically arranged and are mutually parallel, the 2 side edges 7 on the upper plane and the 2 side edges 7 on the lower plane are also mutually symmetrical, and the cross sections of the side edges 7 are isosceles triangles; the side edges 7 and the sheath 6 are of an integral structure formed by extrusion in the same die, and the flat optical cable with the side edge structure reduces friction force during installation and laying and is easy to install and lay.

The optical fiber 1 is a normal optical fiber. The fiber paste 2 is flame-retardant fiber paste and has better flame-retardant and water-blocking properties. The material of the loose tube 3 is polybutylene terephthalate. The non-metal composite belt 4 is a Fiber Reinforced Plastic (FRP) composite material, the FRP composite material is a high-performance material formed by mixing a fiber material and a base material (resin) according to a certain proportion, and the FRP composite material is light and hard, is non-conductive, high in mechanical strength, corrosion-resistant, and has good mechanical performance and water-blocking performance. The reinforcing parts 5 are glass fiber rods, are arranged on two sides of the cable core, and have tensile resistance and bending resistance. The sheath 6 and the side edges 7 are made of nylon sheath materials and have good mechanical properties.

The structural dimensions of each part of the reinforced flat optical cable of the embodiment are as follows:

the outer diameter of the loose tube 3 is 2.15-2.25 mm, and the wall thickness is 0.33-0.35 mm;

the outer diameter of the reinforcing piece 5 is 1.9-2.1 mm;

the distance between the outer surface of the reinforcing piece 5 and the outer surface of the cable core is 0.55-0.60 mm;

the width of the cross section of the sheath 6 is 9.0-9.2 mm, and the height is 4.0-4.2 mm;

the distance between the 2 side edges 7 on the upper plane of the sheath 6 and the distance between the 2 side edges 7 on the lower plane are both 2.8-3.0 mm.

The invention is suitable for signal transmission among residential areas, machine rooms and outdoor pipelines.