CN117031668B - Nonmetal outdoor optical cable for communication - Google Patents
Nonmetal outdoor optical cable for communication Download PDFInfo
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- CN117031668B CN117031668B CN202311302072.7A CN202311302072A CN117031668B CN 117031668 B CN117031668 B CN 117031668B CN 202311302072 A CN202311302072 A CN 202311302072A CN 117031668 B CN117031668 B CN 117031668B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 46
- 238000004891 communication Methods 0.000 title claims abstract description 34
- 229910052755 nonmetal Inorganic materials 0.000 title abstract description 14
- 238000005452 bending Methods 0.000 claims abstract description 211
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 100
- 239000013307 optical fiber Substances 0.000 claims abstract description 60
- 230000002787 reinforcement Effects 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 11
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4403—Optical cables with ribbon structure
- G02B6/4404—Multi-podded
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/441—Optical cables built up from sub-bundles
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Communication Cables (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The application belongs to the field of optical cables, and discloses a nonmetal outdoor optical cable for communication, which is provided with a cable core (1), a nonmetal reinforcement layer and an outer sheath; the method is characterized in that: the cable core is composed of 3n identical bending parts (11) and reinforcing parts, the bending parts are composed of bending bodies (113) and optical fiber ribbons positioned in the bending bodies, the bending parts are laminated in the same bending direction by n groups and are divided into three laminated bodies, n is a positive integer, on a plane perpendicular to the axis of the optical cable, the inner surfaces of the three laminated bodies enclose a central cavity (10), the outer surfaces of the three laminated bodies and the first side surfaces of the three laminated bodies form the outer surface of the cable core, the reinforcing parts are positioned in the central cavity, and the three laminated bodies are all attached to the reinforcing parts. The application has the following main beneficial technical effects: simple structure, easy manufacture, convenient combination and separation, smaller size, lighter weight, less material consumption and lower cost.
Description
Technical Field
The application belongs to the field of optical cables, and particularly relates to a nonmetallic outdoor optical cable for communication.
Background
As a carrier for wired and high-speed communication, the use of optical cables is increasing. As the average global air temperature and the average summer air temperature increase, thunderstorm weather increases gradually, lightning strokes can cause breakage of metal parts in the optical cable, so that the performance of the optical cable is reduced and even the optical cable cannot be used, and therefore, the use amount of the nonmetal optical cable increases gradually. On the other hand, nonmetallic optical cables in the prior art adopt a layer-stranded structure, loose tubes are round and stranded around a central reinforcing piece, and larger gaps are reserved between adjacent loose tubes and between the loose tubes and the central reinforcing piece, so that space is wasted, the size of a product is high, the material consumption is high, and the cost is high.
CN116665981a discloses a butterfly-shaped optical cable with a curved optical fiber ribbon, which has a plurality of optical fiber ribbons, four power transmission components, a butterfly-shaped introducing unit, and a protective layer; the method is characterized in that: the shell part is square in cross section and consists of four identical first shells and a central body; the power transmission component is positioned in the first shell, the optical fiber ribbon is in a bent shape, the optical fiber ribbon is positioned in a bent cavity formed by the adjacent first shells, and the butterfly-shaped introducing unit is positioned in a central cavity of the central body; the protective layer is coated outside the shell component. The application also discloses a ribbon cable and a power cable with the bent optical fiber ribbon. The fiber core has higher fiber core density, can realize photoelectric simultaneous transmission in the same cable, has simple and compact structure, is easy to manufacture, has higher space utilization rate, stronger power transmission capability and more flexible power transmission mode.
CN116598058A discloses a ribbon cable with a curved power transmission unit, having a cable core and an outer sheath located outside the cable core, the cable core being composed of three power transmission components; the method is characterized in that: the power transmission assembly comprises a first power transmission unit, a second power transmission unit, a third power transmission unit and a fourth power transmission unit, wherein the first power transmission unit comprises a first conductor and a first insulating layer, the first insulating layer covers the first conductor, the first insulating layer comprises a first insulating side wall, a second insulating side wall and a third insulating side wall, the first insulating side wall and the second insulating side wall form an angle of hundred twenty degrees with each other, the outer edge of the third insulating side wall is a part of a cylindrical surface, the first power transmission unit is of a symmetrical structure, the second power transmission unit comprises a second conductor and a second insulating layer, the second insulating layer covers the second conductor, the second power transmission unit comprises two sections forming an angle of one hundred twenty degrees with each other, the second power transmission unit is of a symmetrical structure, the third power transmission unit comprises two sections forming an angle of one hundred twenty degrees with each other, the third power transmission unit is of a symmetrical structure, the fourth power transmission unit comprises an optical fiber ribbon and a fourth insulating layer, the fourth power transmission unit comprises two sections forming an angle of two hundred twenty degrees with each other, and the fourth power transmission unit comprises two sections forming a symmetrical structure; the outer sheath is composed of a sheath body and a plurality of raised strips, the outer sheath is of an integrated structure, the raised strips protrude from the inner wall of the sheath body to the center of the outer sheath, grooves are formed between adjacent raised strips, a central cavity is formed in the sheath, and the grooves are communicated with the central cavity; the two ends of all the first power transmission units, the second power transmission units, the third power transmission units and the fourth power transmission units are positioned in the grooves, straight lines formed at the bending positions of all the power transmission units in each power transmission assembly are in a first plane passing through the central axis of the outer sheath, the bending positions of all the power transmission units in each power transmission assembly face the same direction and face the center of the outer sheath, the distance between the bending positions of the fourth power transmission units in each power transmission assembly and the central axis of the outer sheath is minimum, the distance between the bending positions of the third power transmission units and the central axis of the outer sheath is second minimum, the distance between the bending positions of the second power transmission units and the central axis of the outer sheath is third minimum, the distance between the bending positions of the first power transmission units and the bending positions of the outer sheath are maximum, and adjacent power transmission units in each power transmission assembly are not contacted; the first planes of the three power transmission assemblies are at an angle of one hundred twenty degrees to each other.
CN116594130a discloses a ribbon optical cable with bending parts, which has an outer sheath, and is characterized in that: the device also comprises a cross bending part, four identical second bending bodies, four identical third bending bodies, four identical filling parts, four identical first optical fiber ribbon bodies and four identical second optical fiber ribbon bodies; the filling component consists of a filling core and a cladding shell, wherein the cladding shell is clad outside the filling core, and the cross section of the outer edge of the cladding shell is isosceles right triangle; the cross bending part divides the space into four quadrants, the second bending body, the third bending body, the first optical fiber ribbon body and the second optical fiber ribbon body are all in right-angle bending shapes, and in each quadrant, a first optical fiber ribbon body, a second bending body, a second optical fiber ribbon body, a third bending body and a filling part are sequentially arranged outwards from the center of the cross bending part; the outer sheath is composed of first to eighth side walls which are sequentially connected and form a closed structure, a sheath cavity is arranged in the outer sheath, on a plane perpendicular to the axis of the outer sheath, the first side wall is parallel to the fifth side wall, the third side wall is parallel to the seventh side wall, the second side wall is parallel to the sixth side wall, the fourth side wall is parallel to the eighth side wall, the extension of the first side wall is intersected with the extension of the third side wall to form a first vertex, the extension of the fifth side wall is intersected with the extension of the third side wall to form a second vertex, the extension of the fifth side wall is intersected with the extension of the seventh side wall to form a third vertex, the extending part of the first side wall and the extending part of the seventh side wall are intersected to form a fourth vertex, a straight line passing through the first vertex and the third vertex is a first diagonal line, a straight line passing through the second vertex and the fourth vertex is a second diagonal line, the first diagonal line and the second diagonal line are mutually perpendicular, the first diagonal line is parallel to the fourth side wall, the second diagonal line is parallel to the second side wall, the outer sheath is divided into upper and lower parts by a horizontal symmetry axis and is symmetrical about the horizontal symmetry axis, and the outer sheath is divided into left and right parts by a vertical symmetry axis and is symmetrical about the vertical symmetry axis; the second bending body, the third bending body, the first optical fiber ribbon body, the second optical fiber ribbon body and the cross bending part are positioned in the inner cavity of the sheath, the horizontal part of the cross bending part is overlapped with the horizontal symmetrical axis, and the vertical part of the cross bending part is overlapped with the vertical symmetrical axis.
CN116360047a discloses a divergent optical fiber ribbon cable, which has a reinforcing member and an outer protective layer, the outer protective layer is located outside the reinforcing member, and is characterized in that at least three protective sleeves are arranged between the reinforcing member and the outer protective layer, the cross section of each protective sleeve is arc-shaped, an optical fiber ribbon containing cavity along the arc direction of the cross section of the protective sleeve body is formed inside each protective sleeve, and at least one optical fiber ribbon along the arc direction of the cross section of the protective sleeve body is arranged in each optical fiber ribbon containing cavity; the lower parts of the protection sleeves are attached to the reinforcing members, the upper parts of the protection sleeves are attached to the inner wall of the outer protective layer, the bottoms of two adjacent protection sleeves are abutted, and the upper parts of the two adjacent protection sleeves are not contacted; the structure is simpler, the manufacturing is easier, the cost is lower, the fiber core density is higher, the bending performance is better, and the product structure is more stable and reliable.
CN114927282a discloses an optical fiber ribbon cable with a curved sleeve, which is provided with a reinforcing member, a plurality of insulated wires, a plurality of optical fiber ribbons, a plurality of curved sleeves, a protective layer and an outer sheath, wherein the optical fiber ribbons are composed of a plurality of optical fibers and a bonding layer for wrapping all the optical fibers, all the curved sleeves are symmetrically distributed outside the reinforcing member, and the protective layer wraps all the curved sleeves, and the outer sheath is positioned outside the protective layer; the method is characterized in that: the bending sleeve is composed of a bending sleeve wall body, a bending sleeve cavity is formed in the sleeve wall body, a sleeve cavity is formed in the lower portion of the lower surface of the sleeve wall body, one end face of the bending sleeve is a first end face, the other end face of the bending sleeve is a second end face, the first end face and the second end face are on the same cylindrical surface, the radius of the cylindrical surface where the first end face is located is equal to the radius R of the reinforcing piece, the diameter of the cylindrical surface where the second end face is located is equal to the diameter of the reinforcing piece, the bottom of the first end face and the bottom of the second end face are in the same plane, and the plane passes through the bottom horizontal line of the bending sleeve; the optical fibers are sequentially arranged in a curve shape, and any two adjacent optical fibers are not contacted with each other; the optical fiber ribbon is in a bent shape and is positioned in the sleeve cavity; the insulated wire is composed of an insulating layer and an electric conductor positioned in the insulating layer, and the insulated wire is positioned in the inner cavity of the sleeve; the insulating bottom surface is closely attached to the outer surface of the reinforcing member, and the first end surface and the second end surface are closely attached to the outer surface of the reinforcing member.
CN114594558A discloses an optical fiber ribbon cable with an inner winding structure, which comprises a pipeline body, a plurality of optical fiber ribbons and a plurality of inner winding structures, wherein a plurality of tearing slits are formed on the outer wall of the pipeline body, a plurality of optical fibers are arranged in the optical fiber ribbons, and a pipeline inner cavity is formed in the pipeline body; the inner coil structure is a curved arc structure, each clamp body cavity is internally provided with an optical fiber ribbon, the other end of the outer clamp body in each inner coil structure and the other end of the inner clamp body are not contacted with the adjacent inner coil structure, the outer clamp body is close to the inner wall of the pipeline body, the inner clamp body is far away from the inner wall of the pipeline body, the tearing opening is positioned on the outer wall of the pipeline body outside the clamp body cavity, and the other end of the inner coil structure is open.
CN113903526a discloses a communication optical cable, which has a reinforcing component, a plurality of accommodating components distributed on the outer edge of the reinforcing component, a protective layer outside all the accommodating components, and an outer protective layer coated outside the protective layer, wherein each accommodating component is internally provided with a light transmission component; the device is characterized in that the accommodating part consists of a third bending part, a second connecting part, a fourth bending part, a third connecting part and a fifth bending part which are sequentially connected, a second cavity is formed between the third bending part and the fifth bending part, the fifth bending part is not connected with the third bending part, a fourth cavity is formed between the fourth bending part and the fifth bending part, a third cavity is formed between the second connecting part and the fifth bending part, the second cavity is communicated with the third cavity, the third cavity is communicated with the fourth cavity, the inner surface of the fourth bending part is a part of a cylindrical surface, and the accommodating part is of an integrated structure; the light transmission component consists of a sixth bending part, a fourth connecting part and a seventh bending part which are sequentially connected, a fifth cavity is arranged among the sixth bending part, the fourth connecting part and the seventh bending part, the sixth bending part is not connected with the seventh bending part, the lower surface of the sixth bending part is positioned below the lower surface of the seventh bending part, a space is arranged between the sixth bending part and the seventh bending part, a plurality of optical fibers are arranged in the light transmission component, and the light transmission component is of an integrated structure; the seventh bending part is embedded in the fourth cavity, the fourth connecting part is embedded in the third cavity, and the sixth bending part is embedded in the second cavity.
However, the above-mentioned prior art still has the defects of complicated structure, excessive space occupation, etc.
Disclosure of Invention
In order to solve the problems, the application aims to disclose a nonmetallic outdoor optical cable for communication, which is realized by adopting the following technical scheme.
A nonmetallic outdoor optical cable for communication is provided with a cable core, a nonmetallic reinforcing part layer and an outer sheath, wherein the nonmetallic reinforcing part layer is coated outside the cable core, and the outer sheath is extruded and coated outside the nonmetallic reinforcing part layer; the method is characterized in that: the cable core consists of 3n identical bending parts and reinforcing parts, wherein each bending part consists of a bending body and an optical fiber ribbon positioned in the bending body, the cross section of each bending part is a part of a circular cylinder, the outer surface and the inner surface of each circular cylinder have the same curvature and the same bending direction, the two side surfaces of each circular cylinder have the same curvature and the opposite bending direction, the bending parts are laminated in the same bending direction and in a group of n, and then are divided into three laminated bodies, n is more than or equal to 1, n is a positive integer, and the outer surfaces of the first side surface and the second laminated body of the first laminated body are positioned in a first cylindrical surface on a plane perpendicular to the axis of the optical cable; the first side of the second laminate and the outer surface of the third laminate are in a second cylindrical surface; the first side of the third laminate is in a third cylindrical surface with the outer surface of the first laminate; the inner surface of the first laminate is in close contact with the second side of the second laminate; the inner surface of the second laminate is in close contact with the second side of the third laminate; the inner surface of the third laminate is in close contact with the second side of the first laminate; the inner surfaces of the three laminated bodies enclose a central cavity; the reinforcing member is located within the central cavity and all three stacks are affixed to the reinforcing member.
A nonmetallic outdoor optical cable for communication is provided with a cable core, a nonmetallic reinforcing part layer and an outer sheath, wherein the nonmetallic reinforcing part layer is coated outside the cable core, and the outer sheath is extruded and coated outside the nonmetallic reinforcing part layer; the method is characterized in that: the cable core consists of 3n identical bending parts and reinforcing parts, the reinforcing parts consist of reinforcing parts and cushion layers coated outside the reinforcing parts, the outer edges of the cross sections of the reinforcing parts consist of three sections of circular arcs with equal curvature and equal central angles, the heads and the tails of the three sections of circular arcs are sequentially connected to form a closed structure, and the bending directions of the three sections of circular arcs face the outside of the reinforcing parts; the bending part consists of a bending body and an optical fiber ribbon positioned in the bending body, wherein the optical fiber ribbon consists of a plurality of optical fibers and an adhesive layer which covers all the optical fibers integrally, the cross section outer edge of the bending part consists of an outer surface of the bending body, a first side surface of the bending body, an inner surface of the bending body and a second side surface of the bending body which are connected in sequence, the head end of the outer surface of the bending body is connected with the tail end of the second side surface of the bending body, the four outer surfaces of the bending body are all part of circular arcs, the bending directions of the outer surface of the bending body and the inner surface of the bending body are the same, the curvature radiuses of the first side surface of the bending body and the second side surface of the bending body are the same, the first side surface of the bending body and the second side surface of the bending body are opposite, and the curvature radiuses of the first side surface of the bending body are the same; the bending component is divided into three laminated bodies after being laminated by taking n as a group in the same bending direction, n is more than or equal to 1, n is a positive integer, the three laminated bodies are spliced to form a closed cable core, and each laminated body comprises: the first sides of all the bends are on one cylindrical surface, the second sides of all the bends are on another cylindrical surface, the outer surface of the outermost one of the bends in the stack is called the outer surface of the stack, the inner surface of the innermost one of the bends in the stack is called the inner surface of the stack, the first sides of all the bends in the stack are called the first sides of the stack, the second sides of all the bends in the stack are called the second sides of the stack, and the cable core: the inner surface of the first laminate is in close contact with the second side of the second laminate, the inner surface of the second laminate is in close contact with the second side of the third laminate, and the inner surface of the third laminate is in close contact with the second side of the first laminate; the outer surface of the first laminate, the first side of the third laminate being on a first circumference, the outer surface of the second laminate, the first side of the first laminate being on a second circumference, the outer surface of the third laminate, the first side of the second laminate being on a third circumference, the inner surfaces of the three laminates enclosing a central cavity; the reinforcing member is located within the central cavity and all three stacks are affixed to the reinforcing member.
The application has the following main beneficial technical effects: simple structure, easy manufacture, convenient combination and separation, smaller size, lighter weight, less material consumption and lower cost.
Drawings
Fig. 1 is a schematic cross-sectional structure of embodiment example 1.
Fig. 2 is a schematic cross-sectional structure of the cable core used in fig. 1.
Fig. 3 is a schematic perspective view of a section of an anatomic structure of a bending member used in the present application.
Fig. 4 is an enlarged schematic cross-sectional structure of fig. 3.
Fig. 5 is a schematic cross-sectional structure of the reinforcing member used in embodiment example 1.
Fig. 6 is a schematic cross-sectional structure of the reinforcing member used in embodiment example 2.
Fig. 7 is a schematic cross-sectional structure of the cable core used in embodiment example 3.
Detailed Description
So that those skilled in the art can better understand and practice the present patent, reference will now be made in detail to the drawings, which are illustrated in the accompanying drawings.
In the figure: 1-cable core, 2-strength members, 3-nonmetallic strength member layer, 4-outer jacket, 10-central cavity, 11-bending members, 111-optical fibers, 112-bonding layer, 113-bending body, 1131-outer surface of bending body, 1132-first side of bending body, 1133-inner surface of bending body, 1134-second side of bending body, 21-strength member, 22-cushion layer.
Implementation example 1: referring to fig. 1 to 5, a nonmetal outdoor optical cable for communication is provided with a cable core 1, a nonmetal reinforcement layer 3 and an outer sheath 4, wherein the nonmetal reinforcement layer 3 is coated outside the cable core 1, and the outer sheath 4 is extruded and coated outside the nonmetal reinforcement layer 3; the method is characterized in that: the cable core 1 is composed of three identical bending parts 11 and reinforcing parts 2, the reinforcing parts 2 are composed of reinforcing parts 21 and cushion layers 22 coated outside the reinforcing parts 21, the outer edge of the cross section of the reinforcing parts 2 is composed of three sections of circular arcs with equal curvature and equal central angles, the heads and the tails of the three sections of circular arcs are sequentially connected to form a closed structure, and the bending directions of the three sections of circular arcs face the outside of the reinforcing parts 2; the bending member 11 is composed of a bending body 113 and an optical fiber ribbon located inside the bending body 113, the optical fiber ribbon is composed of a plurality of optical fibers 111 and an adhesive layer 112 which covers all the optical fibers 111 integrally, the outer edge of the cross section of the bending member 11 is composed of an outer surface 1131 of the bending body, a first side 1132 of the bending body, an inner surface 1133 of the bending body and a second side 1134 of the bending body which are connected in sequence, the head end of the outer surface 1131 of the bending body is connected with the tail end of the second side 1134 of the bending body, the four outer surfaces of the bending body are all part of an arc, the bending directions of the outer surface 1131 of the bending body and the inner surface 1133 of the bending body are the same, the curvature radiuses of the two are the same, the curvature radiuses of the first side 1132 of the bending body and the second side 1134 of the bending body are opposite, and the curvature radiuses of the outer surface 1131 of the bending body and the first side 1132 of the bending body are the same; in the cable core 1: the inner surface 1133 of the curved body of the first curved member 11 is in close contact with the second side 1134 of the curved body of the second curved member 11, the inner surface 1133 of the curved body of the second curved member 11 is in close contact with the second side 1134 of the curved body of the third curved member 11, and the inner surface 1133 of the curved body of the third curved member 11 is in close contact with the second side 1134 of the curved body of the first curved member 11; the outer surface 1131 of the curved body of the first curved member 11, the first side 1132 of the curved body of the third curved member 11 are on a first circumference, the outer surface 1131 of the curved body of the second curved member 11, the first side 1132 of the curved body of the first curved member 11 are on a second circumference, the outer surface 1131 of the curved body of the third curved member 11, the first side 1132 of the curved body of the second curved member 11 are on a third circumference, and the inner surfaces 1133 of the curved bodies of the three curved members 11 enclose the central cavity 10; the stiffening element 2 is located in the central cavity 10 and three curved elements 11 are all attached to the stiffening element 2.
The above-mentioned nonmetal outdoor optical cable for communication, characterized in that: the cross section of the stiffener 21 is circular.
Implementation example 2: please refer to fig. 6, and refer to fig. 1 to 5, a nonmetallic outdoor optical cable for communication, which is basically the same as embodiment 1, except that: the cross-sectional shape of the reinforcing member 21 is similar to the shape of the outer edge of the reinforcing member, i.e., is peach-shaped or heart-shaped, the reinforcing member 21 is concentric with the mat and is positioned correspondingly, i.e., is not positionally offset, as in fig. 6, one, two corresponding intersections are equal in length when connected, two, the line between the corresponding endpoints crosses the center of the reinforcing member, three, is symmetrical about the connection between the corresponding end account cards, as in fig. 6, the reinforcing member is symmetrical about the line of the uppermost two intersections, the reinforcing member is symmetrical about the line of the rightmost two intersections, the uppermost two intersections refer to the uppermost intersection of the mat outer edge and the uppermost intersection of the reinforcing member 21; the two right-most intersections refer to the right-most intersection of the outer edges of the mat and the right-most intersection of the reinforcement 21; the leftmost two intersection points refer to the leftmost intersection point of the outer edge of the mat and the leftmost intersection point of the reinforcement 21.
Of course, the strength member 21 of the non-metallic outdoor optical cable for communication according to the present application may be of any shape other than those of example 1 and example 2, such as triangular, rectangular, parallelogram, trapezoid, etc. in cross section.
Implementation example 3: referring to fig. 7, and referring to fig. 1 to 6, basically the same as in embodiment 1 and embodiment 2, a non-metallic outdoor optical cable for communication has a cable core 1, a non-metallic reinforcement layer and an outer sheath, wherein the non-metallic reinforcement layer is coated outside the cable core 1, and the outer sheath is extrusion-coated outside the non-metallic reinforcement layer; the method is characterized in that: the cable core 1 is composed of six identical bending parts 11 and reinforcing parts, wherein each reinforcing part is composed of a reinforcing part and a cushion layer coated outside the reinforcing part, the outer edge of the cross section of each reinforcing part is composed of three sections of circular arcs with equal curvature and equal central angles, the heads and the tails of the three sections of circular arcs are sequentially connected to form a closed structure, and the bending directions of the three sections of circular arcs face the outside of the reinforcing part; the bending member 11 is composed of a bending body 113 and an optical fiber ribbon located inside the bending body 113, the optical fiber ribbon is composed of a plurality of optical fibers 111 and an adhesive layer 112 which covers all the optical fibers 111 integrally, the outer edge of the cross section of the bending member 11 is composed of an outer surface 1131 of the bending body, a first side 1132 of the bending body, an inner surface 1133 of the bending body and a second side 1134 of the bending body which are connected in sequence, the head end of the outer surface 1131 of the bending body is connected with the tail end of the second side 1134 of the bending body, the four outer surfaces of the bending body are all part of an arc, the bending directions of the outer surface 1131 of the bending body and the inner surface 1133 of the bending body are the same, the curvature radiuses of the two are the same, the curvature radiuses of the first side 1132 of the bending body and the second side 1134 of the bending body are opposite, and the curvature radiuses of the outer surface 1131 of the bending body and the first side 1132 of the bending body are the same; the bending members 11 are laminated in the same bending direction and in a group of two, and then are divided into three laminated bodies, and the three laminated bodies are spliced to form the closed cable core 1, and in each laminated body: the first sides 1132 of all the bends are on one cylindrical surface, the second sides 1134 of all the bends are on another cylindrical surface, the outer surface of the outermost one of the bends in the stack is referred to as the outer surface of the stack, the inner surface of the innermost one of the bends in the stack is referred to as the inner surface of the stack, the first sides of all the bends in the stack are referred to as the first sides of the stack, the second sides of all the bends in the stack are referred to as the second sides of the stack, and the cable core 1: the inner surface of the first laminate is in close contact with the second side of the second laminate, the inner surface of the second laminate is in close contact with the second side of the third laminate, and the inner surface of the third laminate is in close contact with the second side of the first laminate; the outer surface of the first laminate, the first side of the third laminate being on a first circumference, the outer surface of the second laminate, the first side of the first laminate being on a second circumference, the outer surface of the third laminate, the first side of the second laminate being on a third circumference, the inner surfaces of the three laminates enclosing a central cavity 10; the stiffening element is located within the central cavity 10 and all three stacks are attached to the stiffening element.
The application relates to a nonmetallic outdoor optical cable for communication, which is characterized in that: the material of the nonmetallic reinforcement layer is glass fiber reinforced plastic tape or aramid yarn or glass fiber yarn.
The application relates to a nonmetallic outdoor optical cable for communication, which is characterized in that: the material of the outer sheath is plastic, preferably low density polyethylene or medium density polyethylene or high density polyethylene or nylon.
The application relates to a nonmetallic outdoor optical cable for communication, which is characterized in that: the type of optical fiber 111 is single mode or multimode.
The application relates to a nonmetallic outdoor optical cable for communication, which is characterized in that: the material of the adhesive layer 112 is plastic.
The application relates to a nonmetallic outdoor optical cable for communication, which is characterized in that: the material of the curved body 113 is plastic.
The application relates to a nonmetallic outdoor optical cable for communication, which is characterized in that: the material of the stiffener 21 is glass fibre reinforced plastic.
The application relates to a nonmetallic outdoor optical cable for communication, which is characterized in that: the material of the cushion layer 22 is plastic, preferably low density polyethylene or medium density polyethylene or high density polyethylene or polypropylene.
Of course, in the present application, the cable core 1 may be composed of 3n identical bending members 11 and reinforcing members, wherein the bending members 11 are laminated in the same bending direction and in a group of n, and then are divided into three laminated bodies, n is equal to or greater than 1, and n is a positive integer.
According to the application, a cable core is formed by skillfully splicing in a bending lamination body mode, the three outer surfaces of the cable core are all part of cylindrical surfaces, the curvature radiuses of the three outer surfaces of the cable core are equal, the bending directions of the three outer surfaces of the cable core face to the outside, a peach-shaped structure is formed, the three inner surfaces of the cable core form a closed central cavity, a reinforcing part is positioned in the three inner surfaces of the cable core, namely the central cavity, and supports the three lamination bodies, a nonmetal reinforcing part layer is coated outside the cable core, an outer sheath is coated outside the nonmetal reinforcing part layer, and a coating layer can be arranged between the cable core and the nonmetal reinforcing part layer, and at least one protective layer can be arranged between the nonmetal reinforcing part layer and the outer sheath according to requirements, wherein the protective layer is waterproof, antiseptic, fireproof, compression-resistant, anti-meshing and the like; the structure of the cable core enables the surface of the finished product to be smoother, when the nonmetallic reinforcement layer is aramid yarn or glass fiber yarn, the nonmetallic reinforcement layer is distributed outside the cable core in a spiral winding mode, when the nonmetallic reinforcement layer is provided with a plurality of aramid yarn or glass fiber yarn, the nonmetallic reinforcement layer can be wound in a positive and negative two directions, and of course, the nonmetallic reinforcement layer can also be provided with aramid yarn and glass fiber yarn simultaneously, one layer is the aramid yarn, and the other layer is the glass fiber yarn; when the nonmetallic reinforcement layers are glass fiber reinforced plastic strips, the layers are coated in a spiral coating manner or a longitudinal coating manner.
In the application, all raw materials are free of metal, so the cable is called a nonmetallic optical cable, the cable is electrically insulated because of no metal, lightning strike does not cause electric conduction of the cable, the cable can be ensured to be used in thunderstorm days, the cable is particularly suitable for the technical field of electric power and communication, because a layer-twisted structure is not adopted, a plurality of identical bent parts are adopted, a bent body presents a sector ring column structure, the side surfaces of the bent parts are part of cylindrical surfaces, the outer surfaces of the bent parts and the first side surfaces and the second side surfaces are equal in curvature radius, the bent parts can be spliced into a peach-like or heart-shaped structure, the bent parts can be conveniently assembled and separated, the structure is quite simple, the gap of a central cavity can be made smaller, the space is fully utilized, the waste of the space and the waste of materials are reduced, and the cable realizes size miniaturization, weight reduction, material consumption reduction and obvious cost reduction. In the application, through the structure of the bent laminated body and/or the bending part, not only the functions of convenient combination and convenient separation are achieved, but also the space is effectively utilized, and the fiber core density of the optical fiber in the space is enlarged.
The application has the following main beneficial technical effects: simple structure, easy manufacture, convenient combination and separation, smaller size, lighter weight, less material consumption and lower cost.
The above-described embodiments are only preferred embodiments of the present application, and should not be construed as limiting the present application. The protection scope of the present application is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this application are also within the scope of the application.
Claims (12)
1. A nonmetallic outdoor optical cable for communication is provided with a cable core (1), a nonmetallic reinforcing part layer and an outer sheath, wherein the nonmetallic reinforcing part layer is coated outside the cable core (1), and the outer sheath is extruded and coated outside the nonmetallic reinforcing part layer; the method is characterized in that: the cable core (1) is composed of 3n identical bending parts (11) and reinforcing parts, each reinforcing part is composed of a reinforcing part and a cushion layer coated outside the reinforcing part, the outer edge of the cross section of each reinforcing part is composed of three sections of circular arcs with equal curvature and equal central angles, the heads and the tails of the three sections of circular arcs are sequentially connected to form a closed structure, and the bending directions of the three sections of circular arcs face the outside of the reinforcing part; the bending part (11) is composed of a bending body (113) and an optical fiber ribbon positioned in the bending body (113), the cross section of the bending part (11) is a part of a circular cylinder, the outer surface and the inner surface of the circular cylinder have the same curvature and the same bending direction, the two side surfaces of the circular cylinder have the same curvature and opposite bending directions, the bending part (11) is divided into three laminated bodies after being laminated in the same bending direction and in a group of n, n is more than 1, n is a positive integer, and the outer surfaces of the first side surface and the second laminated body of the first laminated body are positioned in a first cylindrical surface on a plane perpendicular to the axis of the optical cable; the first side of the second laminate and the outer surface of the third laminate are in a second cylindrical surface; the first side of the third laminate is in a third cylindrical surface with the outer surface of the first laminate; the inner surface of the first laminate is in close contact with the second side of the second laminate; the inner surface of the second laminate is in close contact with the second side of the third laminate; the inner surface of the third laminate is in close contact with the second side of the first laminate; the inner surfaces of the three laminates enclose a central cavity (10); the reinforcing component is positioned in the central cavity (10) and all three laminates are attached to the reinforcing component; the material of the nonmetallic reinforcement layer is glass fiber reinforced plastic tape or aramid yarn or glass fiber yarn; when the nonmetallic reinforcement layer is aramid yarn or glass fiber yarn, the nonmetallic reinforcement layer is distributed outside the cable core in a spiral winding mode; when the nonmetallic reinforcement layer is a glass fiber reinforced plastic belt, the cable core is coated in a spiral coating mode or a longitudinal coating mode; the cross section shape of the reinforcing part and the shape of the outer edge of the reinforcing part are peach shapes; the curvature radius of the three outer surfaces of the cable core is equal, and the bending directions of the three outer surfaces of the cable core face to the outside, so that a peach-shaped structure is formed.
2. A nonmetallic outdoor optical cable for communication according to claim 1, wherein: the material of the outer sheath is plastic.
3. A nonmetallic outdoor optical cable for communication is provided with a cable core (1), a nonmetallic reinforcing part layer and an outer sheath, wherein the nonmetallic reinforcing part layer is coated outside the cable core (1), and the outer sheath is extruded and coated outside the nonmetallic reinforcing part layer; the method is characterized in that: the cable core (1) is composed of 3n identical bending parts (11) and reinforcing parts, each reinforcing part is composed of a reinforcing part and a cushion layer coated outside the reinforcing part, the outer edge of the cross section of each reinforcing part is composed of three sections of circular arcs with equal curvature and equal central angles, the heads and the tails of the three sections of circular arcs are sequentially connected to form a closed structure, and the bending directions of the three sections of circular arcs face the outside of the reinforcing part; the bending part (11) is composed of a bending body (113) and an optical fiber ribbon positioned in the bending body (113), the optical fiber ribbon is composed of a plurality of optical fibers (111) and an adhesive layer (112) which covers all the optical fibers (111) integrally, the outer edge of the cross section of the bending part (11) is composed of an outer surface (1131) of the bending body, a first side (1132) of the bending body, an inner surface (1133) of the bending body and a second side (1134) of the bending body which are connected in sequence, the head end of the outer surface (1131) of the bending body is connected with the tail end of the second side (1134) of the bending body, the four outer surfaces of the bending body are all part of circular arcs, the outer surface (1131) of the bending body is identical to the inner surface (1133) of the bending body in the bending direction, the curvature radiuses of the outer surface (1132) of the bending body are identical to the curvature radiuses of the second side (1134) of the bending body, the first side (1132) of the bending body is opposite to the bending direction of the second side (1134) of the bending body, and the outer surface (1131) of the bending body is identical to the curvature radiuses of the first side (1132) of the bending body; the bending parts (11) are laminated in the same bending direction and in a group of n, and then are divided into three laminated bodies, wherein n is more than 1, n is a positive integer, and the three laminated bodies are spliced to form a closed cable core (1), and each laminated body comprises: the first sides (1132) of all the bends are on one cylindrical surface, the second sides (1134) of all the bends are on the other cylindrical surface, the outer surface of the outermost one of the bends in the laminate is called the outer surface of the laminate, the inner surface of the innermost one of the bends in the laminate is called the inner surface of the laminate, the first sides of all the bends in the laminate are called the first sides of the laminate, the second sides of all the bends in the laminate are called the second sides of the laminate, and the cable core (1) is: the inner surface of the first laminate is in close contact with the second side of the second laminate, the inner surface of the second laminate is in close contact with the second side of the third laminate, and the inner surface of the third laminate is in close contact with the second side of the first laminate; the outer surface of the first laminate, the first side of the third laminate being on a first circumference, the outer surface of the second laminate, the first side of the first laminate being on a second circumference, the outer surface of the third laminate, the first side of the second laminate being on a third circumference, the inner surfaces of the three laminates enclosing a central cavity (10); the reinforcing component is positioned in the central cavity (10) and all three laminates are attached to the reinforcing component; the material of the nonmetallic reinforcement layer is glass fiber reinforced plastic tape or aramid yarn or glass fiber yarn; when the nonmetallic reinforcement layer is aramid yarn or glass fiber yarn, the nonmetallic reinforcement layer is distributed outside the cable core in a spiral winding mode; when the nonmetallic reinforcement layer is a glass fiber reinforced plastic belt, the cable core is coated in a spiral coating mode or a longitudinal coating mode; the cross section shape of the reinforcing part and the shape of the outer edge of the reinforcing part are peach shapes; the curvature radius of the three outer surfaces of the cable core is equal, and the bending directions of the three outer surfaces of the cable core face to the outside, so that a peach-shaped structure is formed.
4. A nonmetallic outdoor optical cable for communication according to claim 3, wherein: the material of the outer sheath is plastic.
5. A nonmetallic outdoor optical cable for communication according to claim 3, wherein: the type of optical fiber (111) is single mode or multimode.
6. A nonmetallic outdoor optical cable for communication according to claim 3, wherein: the material of the adhesive layer (112) is plastic.
7. A nonmetallic outdoor optical cable for communication according to claim 3, wherein: the material of the bending body (113) is plastic.
8. A nonmetallic outdoor optical cable for communication is provided with a cable core (1), a nonmetallic reinforcing part layer and an outer sheath, wherein the nonmetallic reinforcing part layer is coated outside the cable core (1), and the outer sheath is extruded and coated outside the nonmetallic reinforcing part layer; the method is characterized in that: the cable core (1) is composed of six identical bending parts (11) and a reinforcing part, the reinforcing part is composed of a reinforcing part and a cushion layer coated outside the reinforcing part, the outer edge of the cross section of the reinforcing part is composed of three sections of circular arcs with equal curvature and equal central angles, the heads and the tails of the three sections of circular arcs are sequentially connected to form a closed structure, and the bending directions of the three sections of circular arcs face the outside of the reinforcing part; the bending part (11) is composed of a bending body (113) and an optical fiber ribbon positioned in the bending body (113), the optical fiber ribbon is composed of a plurality of optical fibers (111) and an adhesive layer (112) which covers all the optical fibers (111) integrally, the outer edge of the cross section of the bending part (11) is composed of an outer surface (1131) of the bending body, a first side (1132) of the bending body, an inner surface (1133) of the bending body and a second side (1134) of the bending body which are connected in sequence, the head end of the outer surface (1131) of the bending body is connected with the tail end of the second side (1134) of the bending body, the four outer surfaces of the bending body are all part of circular arcs, the outer surface (1131) of the bending body is identical to the inner surface (1133) of the bending body in the bending direction, the curvature radiuses of the outer surface (1132) of the bending body are identical to the curvature radiuses of the second side (1134) of the bending body, the first side (1132) of the bending body is opposite to the bending direction of the second side (1134) of the bending body, and the outer surface (1131) of the bending body is identical to the curvature radiuses of the first side (1132) of the bending body; the bending parts (11) are laminated in the same bending direction and in a group of two, and then are divided into three laminated bodies, and the three laminated bodies are spliced to form a closed cable core (1), and each laminated body comprises: the first sides (1132) of all the bends are on one cylindrical surface, the second sides (1134) of all the bends are on the other cylindrical surface, the outer surface of the outermost one of the bends in the laminate is called the outer surface of the laminate, the inner surface of the innermost one of the bends in the laminate is called the inner surface of the laminate, the first sides of all the bends in the laminate are called the first sides of the laminate, the second sides of all the bends in the laminate are called the second sides of the laminate, and the cable core (1) is: the inner surface of the first laminate is in close contact with the second side of the second laminate, the inner surface of the second laminate is in close contact with the second side of the third laminate, and the inner surface of the third laminate is in close contact with the second side of the first laminate; the outer surface of the first laminate, the first side of the third laminate being on a first circumference, the outer surface of the second laminate, the first side of the first laminate being on a second circumference, the outer surface of the third laminate, the first side of the second laminate being on a third circumference, the inner surfaces of the three laminates enclosing a central cavity (10); the reinforcing component is positioned in the central cavity (10) and all three laminates are attached to the reinforcing component; the material of the nonmetallic reinforcement layer is glass fiber reinforced plastic tape or aramid yarn or glass fiber yarn; when the nonmetallic reinforcement layer is aramid yarn or glass fiber yarn, the nonmetallic reinforcement layer is distributed outside the cable core in a spiral winding mode; when the nonmetallic reinforcement layer is a glass fiber reinforced plastic belt, the cable core is coated in a spiral coating mode or a longitudinal coating mode; the cross section shape of the reinforcing part and the shape of the outer edge of the reinforcing part are peach shapes; the curvature radius of the three outer surfaces of the cable core is equal, and the bending directions of the three outer surfaces of the cable core face to the outside, so that a peach-shaped structure is formed.
9. A nonmetallic outdoor optical cable for communication according to claim 8, wherein: the material of the outer sheath is plastic.
10. A nonmetallic outdoor optical cable for communication according to claim 8, wherein: the type of optical fiber (111) is single mode or multimode.
11. A nonmetallic outdoor optical cable for communication according to claim 8, wherein: the material of the adhesive layer (112) is plastic.
12. A nonmetallic outdoor optical cable for communication according to claim 8, wherein: the material of the bending body (113) is plastic.
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| CN117761854B (en) * | 2024-02-19 | 2024-04-23 | 常熟白莲光电科技有限公司 | Optical fiber ribbon cable with special-shaped loose sleeve part and manufacturing method thereof |
| CN117849972B (en) * | 2024-03-05 | 2024-05-07 | 常熟虞通光电科技有限公司 | Corrugated butterfly-shaped lead-in optical cable |
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