CN117849972B - Corrugated butterfly-shaped lead-in optical cable - Google Patents
Corrugated butterfly-shaped lead-in optical cable Download PDFInfo
- Publication number
- CN117849972B CN117849972B CN202410248068.5A CN202410248068A CN117849972B CN 117849972 B CN117849972 B CN 117849972B CN 202410248068 A CN202410248068 A CN 202410248068A CN 117849972 B CN117849972 B CN 117849972B
- Authority
- CN
- China
- Prior art keywords
- butterfly
- unit
- butterfly unit
- bending
- protective layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 37
- 239000011241 protective layer Substances 0.000 claims abstract description 87
- 238000005452 bending Methods 0.000 claims description 77
- 230000003014 reinforcing effect Effects 0.000 claims description 67
- 239000013307 optical fiber Substances 0.000 claims description 56
- 239000010410 layer Substances 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 4
- 239000003351 stiffener Substances 0.000 description 10
- 239000000725 suspension Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
-
- 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
- G02B6/4433—Double reinforcement laying in straight line with optical transmission element
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention belongs to the field of cables, and particularly relates to a corrugated butterfly-shaped lead-in optical cable, which is provided with 2n+2 butterfly-shaped units, wherein n is a positive integer, and is characterized in that: from left to right, the short side of the front butterfly unit on the left is attached to the long side of the rear butterfly unit on the right, the long side of the front butterfly unit on the right is located on the same plane with the short side of the rear butterfly unit on the right, and the short side b of the first butterfly unit on the left is connected with a hanging wire sheath extruded outside through a connecting rib; the protective layers, the connecting ribs and the hanging wire protective layers of all the butterfly units are integrally formed, and in the same section, the joint surfaces of the front butterfly unit and the rear butterfly unit form two second tearing cracks; the invention has the advantages of simple structure, random separation of butterfly units, tidy and convenient wiring, strong compression resistance, impact resistance and tensile property, and the like.
Description
Technical Field
The invention belongs to the field of cables, and particularly relates to a corrugated butterfly-shaped lead-in optical cable.
Background
In the prior art, as CN116577892a discloses an embedded butterfly-shaped lead-in optical cable, which has an outer sheath and a cable core, and is characterized in that: the cable core comprises four reinforcing limiting parts and twelve subunits, in the same cross section, the reinforcing limiting parts are provided with four vertex angles, a section of arc which is concave towards the middle is formed between every two adjacent vertex angles, the centers of the four reinforcing limiting parts are positioned on the four vertex angles of the same large square, each arc of each reinforcing limiting part is attached with one subunit, the adjacent two reinforcing limiting parts share one subunit, and butterfly units are arranged in the subunits.
The disadvantages of the above prior art are: 1. the optical cable is large in structure, low in fiber core density, irregular in laying, capable of separating different numbers of butterfly units according to different lines, and poor in compression resistance and impact resistance.
Disclosure of Invention
In order to solve the problems, the invention aims to disclose a corrugated butterfly-shaped lead-in optical cable, which is realized by adopting the following technical scheme.
A corrugated butterfly drop cable having 2n+2 butterfly elements, n being a positive integer, characterized in that: the butterfly unit consists of a protective layer, two reinforcing pieces and an optical fiber, wherein the two reinforcing pieces and the optical fiber are positioned in the protective layer, the two reinforcing pieces are arranged in parallel, the optical fiber is positioned between the two reinforcing pieces, the same section is provided with a long side a on the protective layer, the side parallel to a connecting line of the axes of the two reinforcing pieces is a short side b on the protective layer, the side perpendicular to the connecting line of the axes of the two reinforcing pieces is a short side b, and two long sides a corresponding to the optical fiber are respectively provided with a first tearing opening;
From left to right, the short side b of the front butterfly unit on the left is attached to the long side a of the rear butterfly unit on the right, the long side a of the front butterfly unit on the right is located on the same plane with the short side b of the rear butterfly unit on the right, a downward V-shaped groove with a downward opening is formed between the 2n-1 st butterfly unit and the 2 n-th butterfly unit, an upward V-shaped groove with an upward opening is formed between the 2 n-th butterfly unit and the 2n+1 st butterfly unit, and the short side b of the left of the first butterfly unit is connected with a hanging wire sheath extruded outside through a connecting rib;
And the protective layers, the connecting ribs and the hanging wire protective layers of all the butterfly units are integrally formed, and in the same section, the joint surfaces of the front butterfly unit and the rear butterfly unit form two second tearing cracks for separating the butterfly units.
A corrugated butterfly drop cable having at least two bending units, each bending unit having 2n+2 butterfly units, characterized in that: the butterfly unit consists of a protective layer, two reinforcing pieces and an optical fiber, wherein the two reinforcing pieces and the optical fiber are positioned in the protective layer, the two reinforcing pieces are arranged in parallel, the optical fiber is positioned between the two reinforcing pieces, the same section is provided with a long side a on the protective layer, the side parallel to a connecting line of the axes of the two reinforcing pieces is a short side b on the protective layer, the side perpendicular to the connecting line of the axes of the two reinforcing pieces is a short side b, and two long sides a corresponding to the optical fiber are respectively provided with a first tearing opening;
Each bending unit is from left to right, the short side b of the front butterfly unit, which is positioned on the left side, is attached to the long side a of the rear butterfly unit, which is positioned on the right side, the long side a of the front butterfly unit, which is positioned on the right side, is positioned on the same plane with the short side b of the rear butterfly unit, a lower V-shaped groove with a downward opening is formed between the 2n-1 st butterfly unit and the 2 n-th butterfly unit, an upper V-shaped groove with an upward opening is formed between the 2 n-th butterfly unit and the 2n+1 st butterfly unit, and the short side b of the left side of the first butterfly unit is connected with a hanging wire sheath through a connecting rib in an extrusion molding way; the protective layers, the connecting ribs and the hanging wire protective layers of all the butterfly units are integrally formed, and in the same section, two second tearing cracks are formed on the joint surfaces of the front butterfly unit and the rear butterfly unit and are used for separating the butterfly units;
All the bending units are also provided with an outer protective layer, the bending units are sequentially placed from top to bottom, the downward bending angle of the previous bending unit is placed in the upper V-shaped groove of the next bending unit, and the upward bending angle of the next bending unit is placed in the lower V-shaped groove of the previous bending unit.
The above-mentioned a flute butterfly-shaped introducing optical cable, its characterized in that: in the upper V-shaped groove of the bending unit at the uppermost layer, a filling component is arranged between the butterfly unit at the leftmost side and the outer protective layer, and a filling component is arranged in the lower V-shaped groove of the bending unit at the lowermost layer.
A corrugated butterfly drop cable having two bending elements, each bending element having 2n+2 butterfly elements, characterized in that: the butterfly unit consists of a protective layer, two reinforcing pieces and an optical fiber, wherein the two reinforcing pieces and the optical fiber are positioned in the protective layer, the two reinforcing pieces are arranged in parallel, the optical fiber is positioned between the two reinforcing pieces, the same section is provided with a long side a on the protective layer, the side parallel to a connecting line of the axes of the two reinforcing pieces is a short side b on the protective layer, the side perpendicular to the connecting line of the axes of the two reinforcing pieces is a short side b, and two long sides a corresponding to the optical fiber are respectively provided with a first tearing opening;
Each bending unit is from left to right, the short side b of the front butterfly unit, which is positioned on the left side, is attached to the long side a of the rear butterfly unit, which is positioned on the right side, the long side a of the front butterfly unit, which is positioned on the right side, is positioned on the same plane with the short side b of the rear butterfly unit, a lower V-shaped groove with a downward opening is formed between the 2n-1 st butterfly unit and the 2 n-th butterfly unit, an upper V-shaped groove with an upward opening is formed between the 2 n-th butterfly unit and the 2n+1 st butterfly unit, and the short side b of the left side of the first butterfly unit is connected with a hanging wire sheath through a connecting rib in an extrusion molding way; the protective layers, the connecting ribs and the hanging wire protective layers of all the butterfly units are integrally formed, and in the same section, two second tearing cracks are formed on the joint surfaces of the front butterfly unit and the rear butterfly unit and are used for separating the butterfly units;
the two bending units are symmetrically placed up and down, the corresponding lower V-shaped grooves of the two bending units are opposite to each other, n+1 identical rectangular containing cavities are formed, an inner sleeve is arranged in each containing cavity, and at least one optical communication unit is arranged in the inner sleeve.
The above-mentioned a flute butterfly-shaped introducing optical cable, its characterized in that: adjacent two inner sleeves are connected through a connecting part; the opposite folding angles of the two folding units are propped against the corresponding connecting parts.
The corrugated butterfly-shaped lead-in optical cable is characterized in that the connecting part is provided with a third tearing opening, so that the inner sleeve can be conveniently separated.
The above-mentioned a flute butterfly-shaped introducing optical cable, its characterized in that: the right side stiffener of the 2n-1 th butterfly unit is located directly above the corresponding lower V-shaped groove, and the right side stiffener of the 2 n-th butterfly unit is located directly below the corresponding upper V-shaped groove.
The above-mentioned a flute butterfly-shaped introducing optical cable, its characterized in that: in the upper V-shaped groove of the bending unit at the uppermost layer, a filling part is arranged between the butterfly unit at the leftmost side and the outer protective layer and between the butterfly unit at the rightmost side and the outer protective layer;
the above-mentioned a flute butterfly-shaped introducing optical cable, its characterized in that: in the upper V-shaped groove of the bending unit at the lowest layer, a filling part is arranged between the butterfly unit at the leftmost side and the outer protective layer and between the butterfly unit at the rightmost side and the outer protective layer.
The above-mentioned a flute butterfly-shaped introducing optical cable, its characterized in that: the optical communication unit is an optical fiber or an optical fiber ribbon, and the optical fiber ribbon is formed by combining at least one optical fiber.
The invention has the following beneficial effects:
1. According to the invention, the self-supporting butterfly-shaped lead-in optical cable with the hanging wire 5 and the five non-self-supporting butterfly-shaped lead-in optical cables without the hanging wire can be separated from the corresponding second tearing opening 7, and the butterfly-shaped units with different numbers can be separated according to different lines, so that the construction is more convenient.
2. The invention is provided with the suspension wire 5, thereby realizing self-supporting installation.
3. In the invention, the reinforcing piece 3 on the right side of the first to fifth butterfly units is positioned right below the corresponding lower V-shaped groove 9 or right above the upper V-shaped groove 8, when pressure is applied, the pressure action point is positioned at the folded corner of the corrugated butterfly-shaped lead-in optical cable, the reinforcing piece 3 is arranged below the folded corner instead of the optical fiber 4, the pressure can not directly act on the optical fiber 4, and meanwhile, the corrugated structure ensures that the optical cable has elasticity, and the lateral pressure resistance and the impact resistance are further improved.
4. In the invention, the reinforcing pieces 3 are distributed in the protective layer 1 at intervals, so that the stress of the optical cable is more uniform when the optical cable is stretched, and the tensile capacity of the optical cable is improved.
5. In the invention, a plurality of corrugated butterfly-shaped lead-in cables can be stacked layer by layer during wiring, the downward folded corner of the upper corrugated butterfly-shaped lead-in cable is placed in the upper V-shaped groove 8 of the lower corrugated butterfly-shaped lead-in cable, and the upward folded corner of the lower corrugated butterfly-shaped lead-in cable is placed in the lower V-shaped groove 9 of the upper corrugated butterfly-shaped lead-in cable, so that the optical cable wiring is neat and cannot move left and right; in order to fix two adjacent corrugated butterfly-shaped lead-in cables, glue can be smeared between the two corrugated butterfly-shaped lead-in cables during wiring.
6. In the invention, a plurality of inner sleeves 12 are connected between two bending units, so that the fiber core density of the optical cable is increased; the bending units at the upper side and the lower side enable the inner sleeve 12 to be better protected, the rectangular inner sleeve 12 is arranged in the rectangular containing cavity, and when the optical fiber ribbon 14 is placed in the inner sleeve 12, the space utilization rate of the inner sleeve 12 is higher; the opposite folding angles of the two folding units are propped against the corresponding connecting parts 13, when the optical cable is stressed up and down, the stress points are positioned on the connecting parts 13, the inner sleeve 12 is not stressed, and the compression resistance of the optical cable is stronger.
Drawings
Fig. 1 is a schematic perspective view of embodiment 1.
Fig. 2 is a front view of embodiment 1.
Fig. 3 is a schematic perspective view of the butterfly unit and suspension wire assembly of embodiment 1 after separation.
Fig. 4 is a front view of the butterfly unit of embodiment 1 after separation.
Fig. 5 is a front view of the wiring of embodiment 1.
Fig. 6 is a front view of embodiment 2.
Fig. 7 is a front view of embodiment 3.
Fig. 8 is a front view of embodiment 4.
In the figure: 1. protective layer, 2, hanging wire protective layer, 3, reinforcement, 4, optical fiber, 5, hanging wire, 6, first tear, 7, second tear, 8, upper V-groove, 9, lower V-groove, 10, filler component, 11, outer protective layer, 12, inner sleeve, 13, connecting component, 14, optical fiber ribbon, a, long side, b, short side.
Detailed Description
Example 1
As shown in fig. 1,2 and 4, a corrugated butterfly drop cable has six butterfly units, characterized in that: the butterfly unit is composed of a protective layer 1, two reinforcing pieces 3 and an optical fiber 4, wherein the two reinforcing pieces 3 and the optical fiber 4 are positioned in the protective layer 1, the two reinforcing pieces 3 are arranged in parallel, the optical fiber 4 is positioned between the two reinforcing pieces 3, on the same section, the side of the protective layer 1 parallel to the connecting line of the axes of the two reinforcing pieces 3 is a long side a, the side of the protective layer 1 perpendicular to the connecting line of the axes of the two reinforcing pieces 3 is a short side b, and two long sides a corresponding to the optical fiber 4 are respectively provided with a first tearing opening 6;
From left to right, the short side b of the front butterfly unit on the left is attached to the long side a of the rear butterfly unit on the right, the long side a of the front butterfly unit on the right is on the same plane with the short side b of the rear butterfly unit on the right, a lower V-shaped groove 9 with a downward opening is formed between the first butterfly unit and the second butterfly unit, a lower V-shaped groove 9 with a downward opening is formed between the third butterfly unit and the fourth butterfly unit, a lower V-shaped groove 9 with a downward opening is formed between the fifth butterfly unit and the sixth butterfly unit, an upper V-shaped groove 8 with an upward opening is formed between the second butterfly unit and the third butterfly unit, and an upper V-shaped groove 8 with an upward opening is formed between the fourth butterfly unit and the fifth butterfly unit; the short side b at the left side of the first butterfly unit is connected with a hanging wire 5 with a hanging wire sheath 2 extruded outside through a connecting rib;
The protective layers 1, the connecting ribs and the hanging wire protective layers 2 of all the butterfly units are integrally formed, and in the same section, two second tearing slits 7 are formed on the joint surfaces of the front butterfly unit and the rear butterfly unit and are used for separating the butterfly units;
The right-hand stiffener 3 of the first, third and fifth butterfly units is located directly above the corresponding lower V-groove 9, and the right-hand stiffener 3 of the second, fourth and sixth butterfly units is located directly below the corresponding upper V-groove 8.
As shown in fig. 3 and fig. 4, the present embodiment can be separated into a self-supporting butterfly-shaped drop cable with a suspension wire 5 and five non-self-supporting butterfly-shaped drop cables without suspension wires from the corresponding second tearing openings 7, and different numbers of butterfly-shaped units can be separated according to different lines, so that the construction is more convenient.
In this embodiment, the suspension wire 5 is provided, so that self-supporting installation can be realized.
In this embodiment, the reinforcing member 3 on the right side of the first to fifth butterfly units is located directly below the corresponding lower V-shaped groove 9 or directly above the upper V-shaped groove 8, and when pressure is applied, the pressure application point is located at the folded corner of the corrugated butterfly-shaped lead-in optical cable, the reinforcing member 3 is located below the folded corner, instead of the optical fiber 4, and the pressure does not directly act on the optical fiber 4, and meanwhile, due to the corrugated structure, the optical cable has elasticity, and the lateral pressure resistance and the impact resistance are further improved.
In this embodiment, the reinforcing members 3 are distributed in the protective layer 1 at intervals, so that the stress of the optical cable is more uniform during stretching, and the tensile capacity of the optical cable is improved.
As shown in fig. 5, when wiring, a plurality of corrugated butterfly-shaped lead-in cables according to the invention can be stacked layer by layer, the downward folded corner of the last corrugated butterfly-shaped lead-in cable is placed in the upper V-shaped groove 8 of the next corrugated butterfly-shaped lead-in cable, and the upward folded corner of the next corrugated butterfly-shaped lead-in cable is placed in the lower V-shaped groove 9 of the last corrugated butterfly-shaped lead-in cable, so that the wiring of the cables is neat and cannot move left and right; in order to fix two adjacent corrugated butterfly-shaped lead-in cables, glue can be smeared between the two corrugated butterfly-shaped lead-in cables during wiring.
Example 2
Referring to fig. 6, and referring to fig. 2, a corrugated butterfly drop cable having three bending units, each bending unit having six butterfly units, characterized in that: the butterfly unit is composed of a protective layer 1, two reinforcing pieces 3 and an optical fiber 4, wherein the two reinforcing pieces 3 and the optical fiber 4 are positioned in the protective layer 1, the two reinforcing pieces 3 are arranged in parallel, the optical fiber 4 is positioned between the two reinforcing pieces 3, on the same section, the side of the protective layer 1 parallel to the connecting line of the axes of the two reinforcing pieces 3 is a long side a, the side of the protective layer 1 perpendicular to the connecting line of the axes of the two reinforcing pieces 3 is a short side b, and two long sides a corresponding to the optical fiber 4 are respectively provided with a first tearing opening 6;
Each bending unit is from left to right, the short side b of the front butterfly unit positioned on the left is attached to the long side a of the rear butterfly unit positioned on the right, the long side a of the front butterfly unit positioned on the right is positioned on the same plane with the short side b of the rear butterfly unit positioned on the right, a lower V-shaped groove 9 with a downward opening is formed between the first butterfly unit and the second butterfly unit, a lower V-shaped groove 9 with a downward opening is formed between the third butterfly unit and the fourth butterfly unit, a lower V-shaped groove 9 with a downward opening is formed between the fifth butterfly unit and the sixth butterfly unit, an upper V-shaped groove 8 with an upward opening is formed between the second butterfly unit and the third butterfly unit, an upper V-shaped groove 8 with an upward opening is formed between the fourth butterfly unit and the fifth butterfly unit, and the short side b on the left of the first butterfly unit is connected with a hanging wire 5 of the outer extrusion molding wire sheath 2 through connecting ribs; the protective layers 1, the connecting ribs and the hanging wire protective layers 2 of all the butterfly units are integrally formed, and in the same section, two second tearing slits 7 are formed on the joint surfaces of the front butterfly unit and the rear butterfly unit and are used for separating the butterfly units; the right-hand stiffener 3 of the first, third and fifth butterfly units is located directly above the corresponding lower V-groove 9, and the right-hand stiffener 3 of the second, fourth and sixth butterfly units is located directly below the corresponding upper V-groove 8;
The three bending units are also provided with an outer protective layer 11, the three bending units are sequentially arranged from top to bottom, the downward bending angle of the last bending unit is placed into the upper V-shaped groove 8 of the next bending unit, and the upward bending angle of the next bending unit is placed into the lower V-shaped groove 9 of the last bending unit;
in the upper V-shaped groove 8 of the bending unit at the uppermost layer, a filling component 10 is arranged between the butterfly unit at the leftmost side and the outer protective layer 11, and a filling component 10 is arranged in the lower V-shaped groove 9 of the bending unit at the lowermost layer.
Example 3
Referring to fig. 7, and referring to fig. 2, a corrugated butterfly drop cable having two bending units, each bending unit having six butterfly units, characterized in that: the butterfly unit is composed of a protective layer 1, two reinforcing pieces 3 and an optical fiber 4, wherein the two reinforcing pieces 3 and the optical fiber 4 are positioned in the protective layer 1, the two reinforcing pieces 3 are arranged in parallel, the optical fiber 4 is positioned between the two reinforcing pieces 3, on the same section, the side of the protective layer 1 parallel to the connecting line of the axes of the two reinforcing pieces 3 is a long side a, the side of the protective layer 1 perpendicular to the connecting line of the axes of the two reinforcing pieces 3 is a short side b, and two long sides a corresponding to the optical fiber 4 are respectively provided with a first tearing opening 6;
Each bending unit is from left to right, the short side b of the front butterfly unit positioned on the left is attached to the long side a of the rear butterfly unit positioned on the right, the long side a of the front butterfly unit positioned on the right is positioned on the same plane with the short side b of the rear butterfly unit positioned on the right, a lower V-shaped groove 9 with a downward opening is formed between the first butterfly unit and the second butterfly unit, a lower V-shaped groove 9 with a downward opening is formed between the third butterfly unit and the fourth butterfly unit, a lower V-shaped groove 9 with a downward opening is formed between the fifth butterfly unit and the sixth butterfly unit, an upper V-shaped groove 8 with an upward opening is formed between the second butterfly unit and the third butterfly unit, an upper V-shaped groove 8 with an upward opening is formed between the fourth butterfly unit and the fifth butterfly unit, and the short side b on the left of the first butterfly unit is connected with a hanging wire 5 of the outer extrusion molding wire sheath 2 through connecting ribs; the protective layers 1, the connecting ribs and the hanging wire protective layers 2 of all the butterfly units are integrally formed, and in the same section, two second tearing slits 7 are formed on the joint surfaces of the front butterfly unit and the rear butterfly unit and are used for separating the butterfly units; the right-hand stiffener 3 of the first, third and fifth butterfly units is located directly above the corresponding lower V-groove 9, and the right-hand stiffener 3 of the second, fourth and sixth butterfly units is located directly below the corresponding upper V-groove 8;
The two bending units are also provided with an outer protective layer 11, the two bending units are symmetrically placed up and down, the corresponding lower V-shaped grooves 9 of the two bending units are opposite to each other and form three identical rectangular containing cavities, each containing cavity is internally provided with an inner sleeve 12, at least one optical fiber 4 is arranged in each inner sleeve 12, and two adjacent inner sleeves 12 are connected through a connecting part 13; the opposite corners of the two bending units abut against the corresponding connecting parts 13.
In the upper V-shaped groove 8 of the bending unit at the uppermost layer, a filling part 10 is arranged between the butterfly unit at the leftmost side and the outer protective layer 11 and between the butterfly unit at the rightmost side and the outer protective layer 11;
In the upper V-shaped groove 8 of the bending unit at the lowest layer, a filling part 10 is arranged between the butterfly unit at the leftmost side and the outer protective layer 11 and between the butterfly unit at the rightmost side and the outer protective layer 11.
Example 4
Referring to fig. 8, and referring to fig. 2, a corrugated butterfly drop cable having two bending units, each bending unit having six butterfly units, characterized in that: the butterfly unit is composed of a protective layer 1, two reinforcing pieces 3 and an optical fiber 4, wherein the two reinforcing pieces 3 and the optical fiber 4 are positioned in the protective layer 1, the two reinforcing pieces 3 are arranged in parallel, the optical fiber 4 is positioned between the two reinforcing pieces 3, on the same section, the side of the protective layer 1 parallel to the connecting line of the axes of the two reinforcing pieces 3 is a long side a, the side of the protective layer 1 perpendicular to the connecting line of the axes of the two reinforcing pieces 3 is a short side b, and two long sides a corresponding to the optical fiber 4 are respectively provided with a first tearing opening 6;
Each bending unit is from left to right, the short side b of the front butterfly unit positioned on the left is attached to the long side a of the rear butterfly unit positioned on the right, the long side a of the front butterfly unit positioned on the right is positioned on the same plane with the short side b of the rear butterfly unit positioned on the right, a lower V-shaped groove 9 with a downward opening is formed between the first butterfly unit and the second butterfly unit, a lower V-shaped groove 9 with a downward opening is formed between the third butterfly unit and the fourth butterfly unit, a lower V-shaped groove 9 with a downward opening is formed between the fifth butterfly unit and the sixth butterfly unit, an upper V-shaped groove 8 with an upward opening is formed between the second butterfly unit and the third butterfly unit, an upper V-shaped groove 8 with an upward opening is formed between the fourth butterfly unit and the fifth butterfly unit, and the short side b on the left of the first butterfly unit is connected with a hanging wire 5 of the outer extrusion molding wire sheath 2 through connecting ribs; the protective layers 1, the connecting ribs and the hanging wire protective layers 2 of all the butterfly units are integrally formed, and in the same section, two second tearing slits 7 are formed on the joint surfaces of the front butterfly unit and the rear butterfly unit and are used for separating the butterfly units; the right-hand stiffener 3 of the first, third and fifth butterfly units is located directly above the corresponding lower V-groove 9, and the right-hand stiffener 3 of the second, fourth and sixth butterfly units is located directly below the corresponding upper V-groove 8;
the two bending units are also provided with an outer protective layer 11, the two bending units are symmetrically placed up and down, the corresponding lower V-shaped grooves 9 of the two bending units are opposite to each other and form three identical rectangular containing cavities, an inner sleeve 12 is arranged in each containing cavity, the outer wall of the inner sleeve 12 is respectively parallel to the corresponding side wall of the rectangular containing cavity, at least one optical fiber ribbon 14 is arranged in the inner sleeve 12, the optical fiber ribbon 14 is formed by combining at least two optical fibers 4, and the two adjacent inner sleeves 12 are connected through a connecting part 13; the opposite corners of the two bending units abut against the corresponding connecting parts 13.
In the upper V-shaped groove 8 of the bending unit at the uppermost layer, a filling part 10 is arranged between the butterfly unit at the leftmost side and the outer protective layer 11 and between the butterfly unit at the rightmost side and the outer protective layer 11;
In the upper V-shaped groove 8 of the bending unit at the lowest layer, a filling part 10 is arranged between the butterfly unit at the leftmost side and the outer protective layer 11 and between the butterfly unit at the rightmost side and the outer protective layer 11.
A corrugated butterfly-shaped drop cable according to embodiments 3 and 4 is characterized in that the connecting member 13 is provided with a third tear seam to facilitate separation of the inner jacket tube 12.
In embodiments 3 and 4, a plurality of inner sleeves 12 are connected between two bending units, so that the core density of the optical cable is increased; the bending units at the upper side and the lower side enable the inner sleeve 12 to be better protected, the rectangular inner sleeve 12 is arranged in the rectangular containing cavity, and when the optical fiber ribbon 14 is placed in the inner sleeve 12, the space utilization rate of the inner sleeve 12 is higher; the opposite folding angles of the two folding units are propped against the corresponding connecting parts 13, when the optical cable is stressed up and down, the stress points are positioned on the connecting parts 13, the inner sleeve 12 is not stressed, and the compression resistance of the optical cable is stronger.
The above-described embodiments are only preferred embodiments of the present invention, and should not be construed as limiting the present invention. The protection scope of the present invention 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 invention are also within the scope of the invention.
Claims (5)
1. A corrugated butterfly drop cable having at least two bending units, each bending unit having 2n+2 butterfly units, characterized in that: the butterfly unit is composed of a protective layer (1), two reinforcing pieces (3) and an optical fiber (4), wherein the two reinforcing pieces (3) and the optical fiber (4) are positioned in the protective layer (1), the two reinforcing pieces (3) are arranged in parallel, the optical fiber (4) is positioned between the two reinforcing pieces (3) on the same section, the side, parallel to the connecting line of the axes of the two reinforcing pieces (3), of the protective layer (1) is a long side a, the side, perpendicular to the connecting line of the axes of the two reinforcing pieces (3), of the protective layer (1) is a short side b, and two long sides a corresponding to the optical fiber (4) are respectively provided with a first tearing opening (6); each bending unit is from left to right, the short side b of the front butterfly unit on the left side is attached to the long side a of the rear butterfly unit on the right side, the long side a of the front butterfly unit on the right side is located on the same plane with the short side b of the rear butterfly unit on the right side, a lower V-shaped groove (9) with a downward opening is formed between the 2n-1 st butterfly unit and the 2 n-th butterfly unit, an upper V-shaped groove (8) with an upward opening is formed between the 2 n-th butterfly unit and the 2n+1 st butterfly unit, and the short side b of the left side of the first butterfly unit is connected with a hanging wire (5) with a hanging wire sheath (2) through a connecting rib in an extrusion molding mode; the protective layers (1), the connecting ribs and the hanging wire protective layers (2) of all the butterfly units are integrally formed, and in the same section, two second tearing cracks (7) are formed on the joint surfaces of the front butterfly unit and the rear butterfly unit; the outer protective layers (11) are arranged outside all the bending units, the bending units are sequentially arranged from top to bottom, the downward bending angle of the last bending unit is placed into the upper V-shaped groove (8) of the next bending unit, and the upward bending angle of the next bending unit is placed into the lower V-shaped groove (9) of the last bending unit;
in the upper V-shaped groove (8) of the bending unit at the uppermost layer, a filling component (10) is arranged between the butterfly unit at the leftmost side and the outer protective layer (11) and between the butterfly unit at the rightmost side and the outer protective layer (11), and a filling component (10) is arranged in the lower V-shaped groove (9) of the bending unit at the lowermost layer.
2. A corrugated butterfly drop cable having two bending elements, each bending element having 2n+2 butterfly elements, characterized in that: the butterfly unit is composed of a protective layer (1), two reinforcing pieces (3) and an optical fiber (4), wherein the two reinforcing pieces (3) and the optical fiber (4) are positioned in the protective layer (1), the two reinforcing pieces (3) are arranged in parallel, the optical fiber (4) is positioned between the two reinforcing pieces (3) on the same section, the side, parallel to the connecting line of the axes of the two reinforcing pieces (3), of the protective layer (1) is a long side a, the side, perpendicular to the connecting line of the axes of the two reinforcing pieces (3), of the protective layer (1) is a short side b, and two long sides a corresponding to the optical fiber (4) are respectively provided with a first tearing opening (6); each bending unit is from left to right, the short side b of the front butterfly unit on the left side is attached to the long side a of the rear butterfly unit on the right side, the long side a of the front butterfly unit on the right side is located on the same plane with the short side b of the rear butterfly unit on the right side, a lower V-shaped groove (9) with a downward opening is formed between the 2n-1 st butterfly unit and the 2 n-th butterfly unit, an upper V-shaped groove (8) with an upward opening is formed between the 2 n-th butterfly unit and the 2n+1 st butterfly unit, and the short side b of the left side of the first butterfly unit is connected with a hanging wire (5) with a hanging wire sheath (2) through a connecting rib in an extrusion molding mode; the protective layers (1), the connecting ribs and the hanging wire protective layers (2) of all the butterfly units are integrally formed, and in the same section, two second tearing cracks (7) are formed on the joint surfaces of the front butterfly unit and the rear butterfly unit; an outer protective layer (11) is arranged outside the two bending units, the two bending units are symmetrically arranged up and down, the corresponding lower V-shaped grooves (9) of the two bending units are opposite to each other, n+1 identical rectangular containing cavities are formed, an inner sleeve (12) is arranged in each containing cavity, and at least one optical communication unit is arranged in each inner sleeve (12);
Adjacent two inner sleeves (12) are connected through a connecting part (13); opposite folding angles of the two bending units are propped against corresponding connecting parts (13); the connecting part (13) is provided with a third tearing opening; in the upper V-shaped groove (8) of the bending unit at the uppermost layer, a filling component (10) is arranged between the butterfly unit at the leftmost side and the outer protective layer (11) and between the butterfly unit at the rightmost side and the outer protective layer (11).
3. A corrugated butterfly drop cable according to claim 2, wherein: in the upper V-shaped groove (8) of the bending unit at the lowest layer, a filling component (10) is arranged between the butterfly unit at the leftmost side and the outer protective layer (11) and between the butterfly unit at the rightmost side and the outer protective layer (11).
4. A corrugated butterfly drop cable according to any one of claims 1 to 3, wherein: the right reinforcing piece (3) of the 2n-1 butterfly unit is positioned right above the corresponding lower V-shaped groove (9), and the right reinforcing piece (3) of the 2n butterfly unit is positioned right below the corresponding upper V-shaped groove (8).
5. A corrugated butterfly drop cable according to claim 2, wherein: the optical communication unit is an optical fiber (4), or the optical communication unit is an optical fiber ribbon (14), and the optical fiber ribbon (14) is formed by combining at least one optical fiber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410248068.5A CN117849972B (en) | 2024-03-05 | 2024-03-05 | Corrugated butterfly-shaped lead-in optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410248068.5A CN117849972B (en) | 2024-03-05 | 2024-03-05 | Corrugated butterfly-shaped lead-in optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117849972A CN117849972A (en) | 2024-04-09 |
| CN117849972B true CN117849972B (en) | 2024-05-07 |
Family
ID=90544371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410248068.5A Active CN117849972B (en) | 2024-03-05 | 2024-03-05 | Corrugated butterfly-shaped lead-in optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117849972B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004206008A (en) * | 2002-12-26 | 2004-07-22 | Fujikura Ltd | Optical fiber cable and its manufacturing method |
| CN112151216A (en) * | 2020-10-20 | 2020-12-29 | 常熟白莲光电科技有限公司 | Power cable, photoelectric composite cable, communication optical cable and optical fiber ribbon |
| WO2022027886A1 (en) * | 2020-08-05 | 2022-02-10 | 江苏长飞中利光纤光缆有限公司 | High-strength optical cable |
| CN114077023A (en) * | 2021-12-03 | 2022-02-22 | 江苏长飞中利光纤光缆有限公司 | Rat-proof optical cable |
| CN115144986A (en) * | 2022-07-24 | 2022-10-04 | 常熟迅联光电科技有限公司 | Butterfly-shaped introduction optical unit module and butterfly-shaped introduction optical cable with same |
| CN116577893A (en) * | 2023-07-14 | 2023-08-11 | 江苏永鼎股份有限公司 | Butterfly-shaped lead-in optical cable with multi-unit structure |
| CN116594133A (en) * | 2023-07-17 | 2023-08-15 | 江苏永鼎股份有限公司 | Optical fiber ribbon cable with foldable parts |
| CN117031668A (en) * | 2023-10-10 | 2023-11-10 | 江苏永鼎股份有限公司 | Nonmetal outdoor optical cable for communication |
| CN117031660A (en) * | 2023-07-12 | 2023-11-10 | 常熟迅联光电科技有限公司 | Butterfly-shaped lead-in optical cable with optical fiber ribbon and layer-stranded optical fiber ribbon optical cable |
| CN117348180A (en) * | 2023-10-13 | 2024-01-05 | 常熟闪通电力科技有限公司 | Optical ribbon cable and ribbon cable |
-
2024
- 2024-03-05 CN CN202410248068.5A patent/CN117849972B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004206008A (en) * | 2002-12-26 | 2004-07-22 | Fujikura Ltd | Optical fiber cable and its manufacturing method |
| WO2022027886A1 (en) * | 2020-08-05 | 2022-02-10 | 江苏长飞中利光纤光缆有限公司 | High-strength optical cable |
| CN112151216A (en) * | 2020-10-20 | 2020-12-29 | 常熟白莲光电科技有限公司 | Power cable, photoelectric composite cable, communication optical cable and optical fiber ribbon |
| CN114077023A (en) * | 2021-12-03 | 2022-02-22 | 江苏长飞中利光纤光缆有限公司 | Rat-proof optical cable |
| CN115144986A (en) * | 2022-07-24 | 2022-10-04 | 常熟迅联光电科技有限公司 | Butterfly-shaped introduction optical unit module and butterfly-shaped introduction optical cable with same |
| CN117031660A (en) * | 2023-07-12 | 2023-11-10 | 常熟迅联光电科技有限公司 | Butterfly-shaped lead-in optical cable with optical fiber ribbon and layer-stranded optical fiber ribbon optical cable |
| CN116577893A (en) * | 2023-07-14 | 2023-08-11 | 江苏永鼎股份有限公司 | Butterfly-shaped lead-in optical cable with multi-unit structure |
| CN116594133A (en) * | 2023-07-17 | 2023-08-15 | 江苏永鼎股份有限公司 | Optical fiber ribbon cable with foldable parts |
| CN117031668A (en) * | 2023-10-10 | 2023-11-10 | 江苏永鼎股份有限公司 | Nonmetal outdoor optical cable for communication |
| CN117348180A (en) * | 2023-10-13 | 2024-01-05 | 常熟闪通电力科技有限公司 | Optical ribbon cable and ribbon cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117849972A (en) | 2024-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1967304B (en) | Fiber optic cable with a concave surface | |
| KR20080027328A (en) | Fiber optic cables and methods for forming the same | |
| CN113655579B (en) | Layer stranded optical cable with heart-shaped unit | |
| CN100462760C (en) | Improved optical fiber cables | |
| CN116577892A (en) | Butterfly-shaped lead-in optical cable with embedded structure | |
| CN211604792U (en) | Hanging type cable and optical cable | |
| CN117784341B (en) | Twelve-unit butterfly-shaped lead-in unit optical cable | |
| CN117849972B (en) | Corrugated butterfly-shaped lead-in optical cable | |
| CN117111239A (en) | Layer stranded type ribbon optical cable and cable with hexagonal prism parts | |
| CN117784340B (en) | Rectangular optical fiber ribbon cable and rectangular butterfly-shaped lead-in cable | |
| US8559778B2 (en) | High density multifiber interconnect cable | |
| CN111667950A (en) | Optical cable and high density optical cable of layering distribution | |
| CN117111245B (en) | Flame-retardant optical fiber ribbon cable | |
| CN220730493U (en) | Butterfly-shaped optical cable with center reinforcement | |
| JP7341689B2 (en) | connection harness | |
| CN111403101A (en) | Hanging type cable and optical cable | |
| CN213482531U (en) | Extensible multi-core butterfly-shaped leading-in optical cable | |
| CN114927282A (en) | Optical fiber ribbon optical cable with bent sleeve | |
| CN2629052Y (en) | Central bundle type optical cable with excellent bending performance | |
| CN118131421B (en) | Optical cable or cable with special-shaped loose tube | |
| CN111403088A (en) | Cable and optical cable easy to manufacture | |
| CN118363127B (en) | Outdoor optical cable for communication | |
| CN117741884B (en) | Central beam tube type optical fiber ribbon cable | |
| CN210835387U (en) | Micro-beam tube type indoor optical cable for data center | |
| CN218497214U (en) | Enhanced lateral pressure resistant micro ribbon optical cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240531 Address after: 710000 No. 18, information Avenue, new industrial park, high tech Industrial Development Zone, Xi'an, Shaanxi Province Patentee after: FURUKAWA ELECTRIC XI'AN OPTICAL COMMUNICATION Co.,Ltd. Country or region after: China Address before: No.26 Shatong Road, Xinzhuang Town, Changshu City, Suzhou City, Jiangsu Province Patentee before: CHANGSHU YUTONG PHOTOELECTRIC TECHNOLOGY Co.,Ltd. Country or region before: China |