CN116594132A - Butterfly-shaped leading-in optical cable with adjustable reinforcing piece - Google Patents
Butterfly-shaped leading-in optical cable with adjustable reinforcing piece Download PDFInfo
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- CN116594132A CN116594132A CN202310867701.4A CN202310867701A CN116594132A CN 116594132 A CN116594132 A CN 116594132A CN 202310867701 A CN202310867701 A CN 202310867701A CN 116594132 A CN116594132 A CN 116594132A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 66
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 48
- 238000005192 partition Methods 0.000 claims abstract description 364
- 239000011241 protective layer Substances 0.000 claims abstract description 13
- 239000013307 optical fiber Substances 0.000 claims description 61
- 239000010410 layer Substances 0.000 claims description 25
- 230000002787 reinforcement Effects 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- -1 polyethylene Polymers 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 229920001707 polybutylene terephthalate Polymers 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 239000004831 Hot glue Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G02B6/4403—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
- G02B6/4415—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- 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 optical cables, and particularly relates to a butterfly-shaped lead-in optical cable with an adjustable reinforcing part, which is provided with an outer protective layer, and is characterized in that: the outer protective layer is internally provided with a spacing armor, the spacing armor is composed of at least three left and right partition plates, all the left and right partition plates are arranged in parallel, accommodating grooves are arranged between every two adjacent left and right partition plates, the opening direction of the 2n-1 accommodating grooves is opposite to the opening direction of the 2 n-th accommodating grooves from left to right, n is a positive integer, and the sum of the number of first reinforcing pieces in the accommodating grooves and the number of light units in the accommodating grooves is smaller than or equal to the number of the accommodating grooves; the invention has the advantages of simple structure, low cost, good compression resistance and tensile resistance, convenient taking of the light unit, capability of adjusting the first reinforcing piece according to the need, and the like.
Description
Technical Field
The invention belongs to the field of optical cables, and particularly relates to a butterfly-shaped lead-in optical cable with an adjustable reinforcing part.
Background
The butterfly-shaped lead-in optical cable is widely applied to FTTX and is a common optical cable collected by operators.
In the prior art, CN202256805U discloses a large core number optical fiber ribbon butterfly-shaped lead-in optical cable, which is characterized in that: the optical fiber unit comprises a central optical fiber unit, two first reinforcing parts which are positioned on two sides of the optical fiber unit and are arranged in parallel with the optical fiber unit, and a sheath layer which is coated on the optical fiber unit and the outer part of the first reinforcing parts, wherein the two first reinforcing parts are symmetrically distributed relative to the optical fiber unit, the cross section of the sheath layer is butterfly-shaped, and the optical fiber unit is formed by combining a plurality of optical fiber belts.
The prior art has the following defects: (1) The left side and the right side of the optical fiber ribbon are not protected by other parts except the sheath layers, and the lateral pressure resistance is weak; (2) The first reinforcement is fixed in the sheath layer and is not adjustable.
CN218824831U discloses an outdoor photoelectric hybrid butterfly-shaped layer stranded optical cable, which comprises an outer sheath and a reinforcing member arranged at the center of the outer sheath; the method is characterized in that: a plurality of photoelectric hybrid butterfly-shaped optical cables are arranged on the periphery of the reinforcing member in an annular array, and a water blocking structure layer and an armor structure layer are sequentially arranged in Zhou Xiangyou between the photoelectric hybrid butterfly-shaped optical cables and the outer sheath outwards; the photoelectric hybrid butterfly-shaped optical cable comprises a butterfly-shaped sheath and an optical fiber monomer arranged in the center of the butterfly-shaped sheath, wherein conductor cables are symmetrically arranged on two sides of the optical fiber monomer.
The prior art has the following defects: (1) the structure is complex, and the cost is high; (2) When the shell is opened, the outer sheath, the water-blocking structural layer, the armor structural layer and the like are required to be broken, the shell is inconvenient, and the construction efficiency is low.
Disclosure of Invention
In order to solve the above problems, the present invention aims to disclose a butterfly drop cable with an adjustable reinforcement, which is realized by adopting the following technical scheme.
A butterfly drop cable with adjustable strength members having an outer jacket, characterized in that: the outer protective layer is internally provided with a spacing armor, the spacing armor is composed of at least three left and right spacing plates, all the left and right spacing plates are arranged in parallel, an upper spacing plate is arranged between the upper ends of the 2n-1 left and right spacing plates and the upper ends of the 2n left and right spacing plates from left to right, the left and right ends of the upper spacing plate between the upper ends of the 2n-1 left and right spacing plates and the upper ends of the 2n left and right spacing plates are fixedly connected with the upper ends of the 2n-1 left and right spacing plates and the upper ends of the 2n left and right spacing plates respectively, and a downward opening accommodating groove is formed between the 2n-1 left and right spacing plates and the 2n left and right spacing plates;
a lower partition plate is arranged between the lower ends of the 2n left and right partition plates and the lower ends of the 2n+1 left and right partition plates, the left and right ends of the lower partition plate between the lower ends of the 2n left and right partition plates and the lower ends of the 2n+1 left and right partition plates are fixedly connected with the lower ends of the 2n left and right partition plates and the lower ends of the 2n+1 left and right partition plates respectively, an upper opening containing groove with an upward opening is formed between the 2n left and right partition plates and the 2n+1 left and right partition plates, and n is a positive integer;
The lower opening accommodating groove and the upper opening accommodating groove are internally provided with a first reinforcing piece and light units, the number of the light units is more than or equal to 1, and the sum of the numbers of the first reinforcing piece and the light units is less than or equal to the sum of the numbers of the lower opening accommodating groove and the upper opening accommodating groove.
The butterfly-shaped lead-in optical cable with adjustable reinforcement is characterized in that: when the light unit is contained in the lower opening containing groove, a first tearing groove is arranged at the outer edge of the outer protective layer corresponding to the opening of the lower opening containing groove, and when the light unit is contained in the upper opening containing groove, a first tearing groove is arranged at the outer edge of the outer protective layer corresponding to the opening of the upper opening containing groove.
A butterfly drop cable with adjustable strength members having an outer jacket, characterized in that: the outer protection layer is internally provided with two interval armors which are arranged up and down, the interval armors are formed by at least three left and right partition plates, the number of the left and right partition plates of the two interval armors is the same, all the left and right partition plates are arranged in parallel, the interval armors positioned below are provided with an upper partition plate from left to right, between the upper ends of the 2n-1 left and right partition plates and the upper ends of the 2n left and right partition plates, the left and right ends of the upper partition plate between the upper ends of the 2n-1 left and right partition plates and the upper ends of the 2n left and right partition plates are fixedly connected with the upper ends of the 2n-1 left and right partition plates and the upper ends of the 2n left and right partition plates respectively, and a downward opening accommodating groove is formed between the 2n-1 left and right partition plates;
A lower partition plate is arranged between the lower ends of the 2n left and right partition plates and the lower ends of the 2n+1 left and right partition plates, the left and right ends of the lower partition plate between the lower ends of the 2n left and right partition plates and the lower ends of the 2n+1 left and right partition plates are respectively fixedly connected with the lower ends of the 2n left and right partition plates and the lower ends of the 2n+1 left and right partition plates, and an upper opening containing groove with an upward opening is formed between the 2n left and right partition plates and the 2n+1 left and right partition plates;
the upper spacing armor is from left to right, a lower spacing plate is arranged between the lower ends of the 2n-1 left spacing plate and the lower ends of the 2n left spacing plate, the left and right ends of the lower spacing plate between the lower ends of the 2n-1 left spacing plate and the lower ends of the 2n left spacing plate are respectively fixedly connected with the lower ends of the 2n-1 left spacing plate and the lower ends of the 2n left spacing plate, and an upper opening accommodating groove with an upward opening is formed between the 2n-1 left spacing plate and the 2n left spacing plate;
an upper partition plate is arranged between the upper ends of the 2n left and right partition plates and the upper ends of the 2n+1 left and right partition plates, the left and right ends of the upper partition plate between the upper ends of the 2n left and right partition plates and the upper ends of the 2n+1 left and right partition plates are fixedly connected with the upper ends of the 2n left and right partition plates and the upper ends of the 2n+1 left and right partition plates respectively, a downward opening containing groove is formed between the 2n left and right partition plates and the 2n+1 left and right partition plates, and n is a positive integer;
The lower opening accommodating groove of the interval armor positioned above and the corresponding upper opening accommodating groove of the interval armor positioned below are folded to form a closed accommodating cavity, a light unit is arranged in the closed accommodating cavity, a first reinforcing piece is arranged in the upper opening accommodating groove of the interval armor positioned above, and a first reinforcing piece is arranged in the lower opening accommodating groove of the interval armor positioned below.
A butterfly drop cable with adjustable strength members having an outer jacket, characterized in that: the outer protection layer is internally provided with two interval armors which are arranged up and down, the interval armors are formed by at least three left and right partition plates, the number of the left and right partition plates of the two interval armors is the same, all the left and right partition plates are arranged in parallel, the interval armors positioned below are arranged from left to right, a lower partition plate is arranged between the lower end of the 2n-1 left and right partition plate and the lower end of the 2n left and right partition plate, the left and right ends of the lower partition plate between the lower end of the 2n-1 left and right partition plate and the lower end of the 2n left and right partition plate are fixedly connected with the lower end of the 2n-1 left and right partition plate and the lower end of the 2n left and right partition plate respectively, and an upper opening accommodating groove with an upward opening is formed between the 2n-1 left and right partition plates;
An upper partition plate is arranged between the upper ends of the 2n left and right partition plates and the upper ends of the 2n+1 left and right partition plates, the left and right ends of the upper partition plate between the upper ends of the 2n left and right partition plates and the upper ends of the 2n+1 left and right partition plates are respectively fixedly connected with the upper ends of the 2n left and right partition plates and the upper ends of the 2n+1 left and right partition plates, and a downward opening containing groove is formed between the 2n left and right partition plates and the 2n+1 left and right partition plates;
the upper spacing armor is arranged from left to right, an upper spacing plate is arranged between the upper ends of the 2n-1 left spacing plate and the upper ends of the 2n left spacing plate, the left and right ends of the upper spacing plate between the upper ends of the 2n-1 left spacing plate and the upper ends of the 2n left spacing plate are respectively fixedly connected with the upper ends of the 2n-1 left spacing plate and the upper ends of the 2n left spacing plate, and a lower opening containing groove with a downward opening is formed between the 2n-1 left spacing plate and the 2n left spacing plate;
a lower partition plate is arranged between the lower ends of the 2n left and right partition plates and the lower ends of the 2n+1 left and right partition plates, the left and right ends of the lower partition plate between the lower ends of the 2n left and right partition plates and the lower ends of the 2n+1 left and right partition plates are respectively fixedly connected with the lower ends of the 2n left and right partition plates and the lower ends of the 2n+1 left and right partition plates, an upper opening containing groove with an upward opening is formed between the 2n left and right partition plates and the 2n+1 left and right partition plates, and n is a positive integer;
The lower opening accommodating groove of the interval armor positioned above and the corresponding upper opening accommodating groove of the interval armor positioned below are folded to form a closed accommodating cavity, a light unit is arranged in the closed accommodating cavity, a first reinforcing piece is arranged in the upper opening accommodating groove of the interval armor positioned above, and a first reinforcing piece is arranged in the lower opening accommodating groove of the interval armor positioned below.
The butterfly-shaped lead-in optical cable with adjustable reinforcement is characterized in that: the outer fringe of the left and right sides of outer sheath respectively is equipped with a first tear groove, and the cross-section of first tear groove is the V-arrangement, and the crest line that the tank bottom of first tear groove in left side is located, and the crest line that the tank bottom of first tear groove in right side is located on the plane that the bottom surface of the left and right division bar in the interval armor of top is located, and the bottom surface that the bottom surface of the left and right division bar in the interval armor of top is located on.
The butterfly-shaped lead-in optical cable with adjustable reinforcement is characterized in that: the optical unit consists of a loose tube and at least one optical fiber positioned in the loose tube; or at least one optical fiber ribbon, wherein the optical fiber ribbon is formed by combining at least two optical fibers, and when the optical fibers are at least two optical fiber ribbons, the optical fiber ribbons are stacked layer by layer.
The butterfly-shaped lead-in optical cable with adjustable reinforcement is characterized in that: the optical unit is a butterfly unit, the butterfly unit is composed of a butterfly unit protection layer, two second reinforcing pieces and at least one optical fiber, all the optical fibers are an optical fiber group, the two second reinforcing pieces are positioned on the upper side and the lower side of the optical fiber group, the butterfly unit protection layer is extruded outside the two second reinforcing pieces and the optical fiber group, and the outer edges of the butterfly unit protection layers on the left side and the right side of the optical fiber group are respectively provided with a second tearing groove.
The butterfly-shaped lead-in optical cable with adjustable reinforcement is characterized in that: the outer protective layer is made of polyethylene.
The butterfly-shaped lead-in optical cable with adjustable reinforcement is characterized in that: the material of the interval armor is steel or aluminum.
The butterfly-shaped lead-in optical cable with adjustable reinforcement is characterized in that: the first reinforcement is a square steel wire or glass fiber reinforced plastic rod.
The butterfly-shaped lead-in optical cable with adjustable reinforcement is characterized in that: the optical fiber is a multimode optical fiber or a single mode optical fiber.
The butterfly-shaped lead-in optical cable with adjustable reinforcement is characterized in that: the loose tube is made of polybutylene terephthalate.
The butterfly-shaped lead-in optical cable with the adjustable reinforcing piece comprises two spacing armors, wherein the two spacing armors are adhered by hot melt adhesive.
The invention has the following beneficial effects:
(1) The first reinforcement and the optical unit are separated by a spacing armor, and when the optical cable is subjected to external force, the spacing armor can prevent the first reinforcement from extruding the optical unit, so that the operation of the optical fiber in the optical unit is ensured.
(2) When the optical cable is internally provided with a spacing armor, each upper opening accommodating groove and each lower opening accommodating groove of the spacing armor are non-closed, so that the optical unit and the first reinforcing piece inside the optical cable can be conveniently taken out during construction.
(3) The spacing armor has at least three left and right spacing plates, so that the optical cable is more uniformly stressed when being stressed by the upper side and the lower side, and the compression resistance of the optical cable is improved.
(4) An upper partition plate is arranged beside the upper opening accommodating groove, and a lower partition plate is arranged beside the lower opening accommodating groove, so that when the optical cable is subjected to pressure of the upper side and the lower side, a larger stress surface is provided by interval armor, and the compression resistance of the optical cable is further improved.
(5) The number of the first reinforcing members in the optical cable and the positions of the first reinforcing members in the optical cable, which are positioned in the upper opening accommodating groove and the lower opening accommodating groove, can be adjusted according to the number of cores in the optical cable, the number of the upper opening accommodating groove and the lower opening accommodating groove, the tensile resistance and the compressive resistance which are required to be achieved by the optical cable, and the like.
(6) The spacing armor enables the optical cable to have certain elasticity on the left side and the right side, and improves the impact resistance of the left side and the right side of the optical cable.
(7) When two interval armors are arranged, a plurality of closed cavities can be formed by the two interval armors, and the light units in the closed cavities are better protected.
(8) The optical cable has simple structure and lower cost.
Drawings
Fig. 1 is a schematic perspective view of a stripped end of a segment of example 1.
Fig. 2 is a front view of a section of the implementation example 1.
Fig. 3 is a schematic perspective view of a spacing armor of a section of example 1.
Fig. 4 is a front view of a spacing armor embodying a section of example 1.
Fig. 5 is a schematic perspective view of the end of the section of example 2 after stripping.
Fig. 6 is a front view of a section of implementation example 2.
Fig. 7 is a schematic perspective view of a spacing armor of a section of embodiment example 2.
Fig. 8 is a front view of a spacing armor embodying a section of example 2.
Fig. 9 is a schematic perspective view of the end of the embodiment 3 after stripping.
Fig. 10 is a front view of a section of embodiment example 3.
Fig. 11 is a front view of two spaced armor combinations embodying a section of example 3.
Fig. 12 is a schematic perspective view of the end of the embodiment 4 after stripping.
Fig. 13 is a front view of a section of embodiment example 4.
Fig. 14 is a front view of two spaced armor combinations embodying a section of example 4.
Fig. 15 is a schematic perspective view of the light unit of embodiment 5 with the end of one segment peeled off.
Fig. 16 is a front view of a segment of a light unit embodying example 5.
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. outer jacket, 11, first tear groove, 2, spacing armor, 21, left and right spacer plates, 22, upper open receiving groove, 23, upper spacer plate, 24, lower open receiving groove, 25, lower spacer plate, 3, loose tube, 4, optical fiber, 5, first strength member, 6, optical fiber ribbon, 7, butterfly unit jacket, 71, second tear groove, 8, second strength member.
Detailed Description
Example 1
Referring to fig. 1 to 4, a butterfly drop cable with adjustable strength members has an outer jacket 1, and is characterized in that: a spacing armor 2 is arranged in the outer protective layer 1, the spacing armor 2 is composed of five left and right spacing plates 21, the five left and right spacing plates 21 are arranged in parallel, an upper spacing plate 23 is arranged between the upper end of the first left and right spacing plate 21 and the upper end of the second left and right spacing plate 21 from left to right, the left and right ends of the upper spacing plate 23 between the upper end of the first left and right spacing plate 21 and the upper end of the second left and right spacing plate 21 are fixedly connected with the upper end of the first left and right spacing plate 21 and the upper end of the second left and right spacing plate 21 respectively, and a downward opening accommodating groove 24 is formed between the first left and right spacing plate 21 and the second left and right spacing plate 21;
A lower partition plate 25 is arranged between the lower end of the second left and right partition plates 21 and the lower end of the third left and right partition plates 21, the left and right ends of the lower partition plate 25 between the lower end of the second left and right partition plates 21 and the lower end of the third left and right partition plates 21 are fixedly connected with the lower end of the second left and right partition plates 21 and the lower end of the third left and right partition plates 21 respectively, and an upward opening accommodating groove 22 is formed between the second left and right partition plates 21 and the third left and right partition plates 21;
an upper partition plate 23 is arranged between the upper ends of the third left and right partition plates 21 and the upper ends of the fourth left and right partition plates 21, the left and right ends of the upper partition plate 23 between the upper ends of the third left and right partition plates 21 and the upper ends of the fourth left and right partition plates 21 are fixedly connected with the upper ends of the third left and right partition plates 21 and the upper ends of the fourth left and right partition plates 21 respectively, and a downward opening containing groove 24 is formed between the third left and right partition plates 21 and the fourth left and right partition plates 21;
a lower partition plate 25 is arranged between the lower ends of the fourth left and right partition plates 21 and the lower ends of the fifth left and right partition plates 21, the left and right ends of the lower partition plate 25 between the lower ends of the fourth left and right partition plates 21 and the lower ends of the fifth left and right partition plates 21 are fixedly connected with the lower ends of the fourth left and right partition plates 21 and the lower ends of the fifth left and right partition plates 21 respectively, and an upper opening accommodating groove 22 with an upward opening is formed between the fourth left and right partition plates 21 and the fifth left and right partition plates 21;
A first reinforcement 5 is respectively arranged in the leftmost lower open accommodating groove 24 and the rightmost upper open accommodating groove 22, and light units are arranged in the rest lower open accommodating grooves 24 and the rest upper open accommodating grooves 22, and are composed of a loose tube 3 and at least one optical fiber 4 positioned in the loose tube 3;
the outer edge of the lower wall of the outer protective layer 1 corresponding to the lower opening containing groove 24 containing the light unit is provided with a first tearing groove 11, and the outer edge of the upper wall of the outer protective layer 1 corresponding to the upper opening containing groove 22 containing the light unit is provided with a first tearing groove 11.
The butterfly-shaped lead-in optical cable with adjustable reinforcement is characterized in that: the loose tube 3 is made of polybutylene terephthalate.
Please refer to fig. 5 to 8, a butterfly-shaped drop cable with adjustable reinforcement member, which has an outer sheath 1, and is characterized in that: a spacing armor 2 is arranged in the outer protective layer 1, the spacing armor 2 is composed of six left and right spacing plates 21, the six left and right spacing plates 21 are arranged in parallel, a lower spacing plate 25 is arranged between the lower end of the first left and right spacing plate 21 and the lower end of the second left and right spacing plate 21 from left to right, the left and right ends of the lower spacing plate 25 between the lower end of the first left and right spacing plate 21 and the lower end of the second left and right spacing plate 21 are fixedly connected with the lower end of the first left and right spacing plate 21 and the lower end of the second left and right spacing plate 21 respectively, and an upper opening accommodating groove 22 with an upward opening is formed between the first left and right spacing plate 21 and the second left and right spacing plate 21;
An upper partition plate 23 is arranged between the upper ends of the second left and right partition plates 21 and the upper ends of the third left and right partition plates 21, the left and right ends of the upper partition plate 23 between the upper ends of the second left and right partition plates 21 and the upper ends of the third left and right partition plates 21 are fixedly connected with the upper ends of the second left and right partition plates 21 and the upper ends of the third left and right partition plates 21 respectively, and a downward opening containing groove 24 is formed between the second left and right partition plates 21 and the third left and right partition plates 21;
a lower partition plate 25 is arranged between the lower end of the third left and right partition plates 21 and the lower end of the fourth left and right partition plates 21, the left and right ends of the lower partition plate 25 between the lower end of the third left and right partition plates 21 and the lower end of the fourth left and right partition plates 21 are fixedly connected with the lower end of the third left and right partition plates 21 and the lower end of the fourth left and right partition plates 21 respectively, and an upper opening accommodating groove 22 with an upward opening is formed between the third left and right partition plates 21 and the fourth left and right partition plates 21;
an upper partition plate 23 is arranged between the upper ends of the fourth left and right partition plates 21 and the upper ends of the fifth left and right partition plates 21, the left and right ends of the upper partition plate 23 between the upper ends of the fourth left and right partition plates 21 and the upper ends of the fifth left and right partition plates 21 are fixedly connected with the upper ends of the fourth left and right partition plates 21 and the upper ends of the fifth left and right partition plates 21 respectively, and a downward opening containing groove 24 is formed between the fourth left and right partition plates 21 and the fifth left and right partition plates 21;
A lower partition plate 25 is arranged between the lower ends of the fifth left and right partition plates 21 and the lower ends of the sixth left and right partition plates 21, the left and right ends of the lower partition plate 25 between the lower ends of the fifth left and right partition plates 21 and the lower ends of the sixth left and right partition plates 21 are fixedly connected with the lower ends of the fifth left and right partition plates 21 and the lower ends of the sixth left and right partition plates 21, respectively, and an upper opening accommodating groove 22 with an upward opening is formed between the fifth left and right partition plates 21 and the sixth left and right partition plates 21;
a first reinforcement 5 is arranged in each of the leftmost upper open accommodating groove 22, the middle upper open accommodating groove 22 and the rightmost upper open accommodating groove 22, and light units are arranged in the two lower open accommodating grooves 24, and each light unit consists of a loose tube 3 and at least one optical fiber 4 positioned in the loose tube 3;
the lower wall outer edge of the outer sheath 1 corresponding to the lower opening containing groove 24 containing the light unit is provided with a first tearing groove 11.
The butterfly-shaped lead-in optical cable with adjustable reinforcement is characterized in that: the loose tube 3 is made of polybutylene terephthalate.
Example 2
Referring to fig. 9 to 11, a butterfly drop cable with adjustable strength members has an outer jacket 1, and is characterized in that: the outer sheath 1 is internally provided with two spacing armors 2, the two spacing armors 2 are vertically arranged, the number of left and right spacing plates 21 of the two spacing armors 2 is the same, the spacing armors 2 are composed of six left and right spacing plates 21, the six left and right spacing plates 21 are arranged in parallel, the spacing armors 2 positioned below are arranged from left to right, a lower spacing plate 25 is arranged between the lower end of a first left and right spacing plate 21 and the lower end of a second left and right spacing plate 21, the left and right ends of the lower spacing plate 25 between the lower end of the first left and right spacing plate 21 and the lower end of the second left and right spacing plate 21 are fixedly connected with the lower end of the first left and right spacing plate 21 and the lower end of the second left and right spacing plate 21 respectively, and an upper opening accommodating groove 22 with an upward opening is formed between the first left and right spacing plate 21 and the second left and right spacing plate 21;
An upper partition plate 23 is arranged between the upper ends of the second left and right partition plates 21 and the upper ends of the third left and right partition plates 21, the left and right ends of the upper partition plate 23 between the upper ends of the second left and right partition plates 21 and the upper ends of the third left and right partition plates 21 are fixedly connected with the upper ends of the second left and right partition plates 21 and the upper ends of the third left and right partition plates 21 respectively, and a downward opening containing groove 24 is formed between the second left and right partition plates 21 and the third left and right partition plates 21;
a lower partition plate 25 is arranged between the lower end of the third left and right partition plates 21 and the lower end of the fourth left and right partition plates 21, the left and right ends of the lower partition plate 25 between the lower end of the third left and right partition plates 21 and the lower end of the fourth left and right partition plates 21 are fixedly connected with the lower end of the third left and right partition plates 21 and the lower end of the fourth left and right partition plates 21 respectively, and an upper opening accommodating groove 22 with an upward opening is formed between the third left and right partition plates 21 and the fourth left and right partition plates 21;
an upper partition plate 23 is arranged between the upper ends of the fourth left and right partition plates 21 and the upper ends of the fifth left and right partition plates 21, the left and right ends of the upper partition plate 23 between the upper ends of the fourth left and right partition plates 21 and the upper ends of the fifth left and right partition plates 21 are fixedly connected with the upper ends of the fourth left and right partition plates 21 and the upper ends of the fifth left and right partition plates 21 respectively, and a downward opening containing groove 24 is formed between the fourth left and right partition plates 21 and the fifth left and right partition plates 21;
A lower partition plate 25 is arranged between the lower ends of the fifth left and right partition plates 21 and the lower ends of the sixth left and right partition plates 21, the left and right ends of the lower partition plate 25 between the lower ends of the fifth left and right partition plates 21 and the lower ends of the sixth left and right partition plates 21 are fixedly connected with the lower ends of the fifth left and right partition plates 21 and the lower ends of the sixth left and right partition plates 21, respectively, and an upper opening accommodating groove 22 with an upward opening is formed between the fifth left and right partition plates 21 and the sixth left and right partition plates 21;
the upper spacing armor 2 is arranged from left to right, an upper spacing plate 23 is arranged between the upper end of the first left and right spacing plates 21 and the upper end of the second left and right spacing plates 21, the left and right ends of the upper spacing plate 23 between the upper end of the first left and right spacing plates 21 and the upper end of the second left and right spacing plates 21 are respectively fixedly connected with the upper end of the first left and right spacing plates 21 and the upper end of the second left and right spacing plates 21, and a downward opening accommodating groove 24 is formed between the first left and right spacing plates 21 and the second left and right spacing plates 21;
a lower partition plate 25 is arranged between the lower end of the second left and right partition plates 21 and the lower end of the third left and right partition plates 21, the left and right ends of the lower partition plate 25 between the lower end of the second left and right partition plates 21 and the lower end of the third left and right partition plates 21 are fixedly connected with the lower end of the second left and right partition plates 21 and the lower end of the third left and right partition plates 21 respectively, and an upward opening accommodating groove 22 is formed between the second left and right partition plates 21 and the third left and right partition plates 21;
An upper partition plate 23 is arranged between the upper ends of the third left and right partition plates 21 and the upper ends of the fourth left and right partition plates 21, the left and right ends of the upper partition plate 23 between the upper ends of the third left and right partition plates 21 and the upper ends of the fourth left and right partition plates 21 are fixedly connected with the upper ends of the third left and right partition plates 21 and the upper ends of the fourth left and right partition plates 21 respectively, and a downward opening containing groove 24 is formed between the third left and right partition plates 21 and the fourth left and right partition plates 21;
a lower partition plate 25 is arranged between the lower ends of the fourth left and right partition plates 21 and the lower ends of the fifth left and right partition plates 21, the left and right ends of the lower partition plate 25 between the lower ends of the fourth left and right partition plates 21 and the lower ends of the fifth left and right partition plates 21 are fixedly connected with the lower ends of the fourth left and right partition plates 21 and the lower ends of the fifth left and right partition plates 21 respectively, and an upper opening accommodating groove 22 with an upward opening is formed between the fourth left and right partition plates 21 and the fifth left and right partition plates 21;
an upper partition plate 23 is arranged between the upper ends of the fifth left and right partition plates 21 and the upper ends of the sixth left and right partition plates 21, the left and right ends of the upper partition plate 23 between the upper ends of the fifth left and right partition plates 21 and the upper ends of the sixth left and right partition plates 21 are fixedly connected with the upper ends of the fifth left and right partition plates 21 and the upper ends of the sixth left and right partition plates 21 respectively, and a downward opening containing groove 24 is formed between the fifth left and right partition plates 21 and the sixth left and right partition plates 21;
The lower opening accommodating groove 24 of the upper interval armor 2 and the corresponding upper opening accommodating groove 22 of the lower interval armor 2 are folded to form a closed accommodating cavity, a light unit consisting of two optical fiber belts 6 is arranged in the closed accommodating cavity, the optical fiber belts 6 are formed by combining at least two optical fibers, a first reinforcing piece 5 is arranged in the upper opening accommodating groove 22 of the upper interval armor 2, and a first reinforcing piece 5 is arranged in the lower opening accommodating groove 24 of the lower interval armor 2.
The outer fringe of the left and right sides of outer sheath 1 respectively is equipped with a first tear groove 11, and the cross-section of first tear groove 11 is the V-arrangement, and the crest line that the tank bottom of first tear groove 11 in left side is located, and the crest line that the tank bottom of first tear groove 11 in right side is located on the plane that the bottom surface of spacing board 21 is located about the left side of spacing armor 2 of top was located, and the tank bottom of first tear groove 11 is the bottom of V-arrangement on the plane that the bottom surface of spacing board 21 was located about the right side of spacing armor 2 of top was located.
Example 3
Referring to fig. 12 to 14, a butterfly drop cable with adjustable strength members has an outer jacket 1, and is characterized in that: the outer sheath 1 is internally provided with two spacing armors 2, the two spacing armors 2 are vertically arranged, the number of left and right spacing plates 21 of the two spacing armors 2 is the same, the spacing armors 2 are composed of six left and right spacing plates 21, the six left and right spacing plates 21 are arranged in parallel, the spacing armors 2 positioned below are arranged from left to right, an upper spacing plate 23 is arranged between the upper end of a first left and right spacing plate 21 and the upper end of a second left and right spacing plate 21, the left and right ends of the upper spacing plate 23 between the upper end of the first left and right spacing plate 21 and the upper end of the second left and right spacing plate 21 are fixedly connected with the upper end of the first left and right spacing plate 21 and the upper end of the second left and right spacing plate 21 respectively, and a downward opening containing groove 24 is formed between the first left and right spacing plates 21 and the second left and right spacing plates 21;
A lower partition plate 25 is arranged between the lower end of the second left and right partition plates 21 and the lower end of the third left and right partition plates 21, the left and right ends of the lower partition plate 25 between the lower end of the second left and right partition plates 21 and the lower end of the third left and right partition plates 21 are fixedly connected with the lower end of the second left and right partition plates 21 and the lower end of the third left and right partition plates 21 respectively, and an upper opening accommodating groove 22 with an upward opening is formed between the second left and right partition plates 21 and the third left and right partition plates 21;
an upper partition plate 23 is arranged between the upper ends of the third left and right partition plates 21 and the upper ends of the fourth left and right partition plates 21, the left and right ends of the upper partition plate 23 between the upper ends of the third left and right partition plates 21 and the upper ends of the fourth left and right partition plates 21 are fixedly connected with the upper ends of the third left and right partition plates 21 and the upper ends of the fourth left and right partition plates 21 respectively, and a downward opening containing groove 24 is formed between the third left and right partition plates 21 and the fourth left and right partition plates 21;
a lower partition plate 25 is arranged between the lower ends of the fourth left and right partition plates 21 and the lower ends of the fifth left and right partition plates 21, the left and right ends of the lower partition plate 25 between the lower ends of the fourth left and right partition plates 21 and the lower ends of the fifth left and right partition plates 21 are fixedly connected with the lower ends of the fourth left and right partition plates 21 and the lower ends of the fifth left and right partition plates 21 respectively, and an upper opening accommodating groove 22 with an upward opening is formed between the fourth left and right partition plates 21 and the fifth left and right partition plates 21;
An upper partition plate 23 is arranged between the upper ends of the fifth left and right partition plates 21 and the upper ends of the sixth left and right partition plates 21, the left and right ends of the upper partition plate 23 between the upper ends of the fifth left and right partition plates 21 and the upper ends of the sixth left and right partition plates 21 are fixedly connected with the upper ends of the fifth left and right partition plates 21 and the upper ends of the sixth left and right partition plates 21 respectively, and a downward opening containing groove 24 is formed between the fifth left and right partition plates 21 and the sixth left and right partition plates 21;
the upper spacing armor 2 is provided with a lower spacing plate 25 between the lower end of the first left and right spacing plates 21 and the lower end of the second left and right spacing plates 21 from left to right, the left and right ends of the lower spacing plate 25 between the lower end of the first left and right spacing plates 21 and the lower end of the second left and right spacing plates 21 are respectively fixedly connected with the lower end of the first left and right spacing plates 21 and the lower end of the second left and right spacing plates 21, and an upper opening accommodating groove 22 with an upward opening is formed between the first left and right spacing plates 21 and the second left and right spacing plates 21;
an upper partition plate 23 is arranged between the upper ends of the second left and right partition plates 21 and the upper ends of the third left and right partition plates 21, the left and right ends of the upper partition plate 23 between the upper ends of the second left and right partition plates 21 and the upper ends of the third left and right partition plates 21 are fixedly connected with the upper ends of the second left and right partition plates 21 and the upper ends of the third left and right partition plates 21 respectively, and a downward opening containing groove 24 is formed between the second left and right partition plates 21 and the third left and right partition plates 21;
A lower partition plate 25 is arranged between the lower end of the third left and right partition plates 21 and the lower end of the fourth left and right partition plates 21, the left and right ends of the lower partition plate 25 between the lower end of the third left and right partition plates 21 and the lower end of the fourth left and right partition plates 21 are fixedly connected with the lower end of the third left and right partition plates 21 and the lower end of the fourth left and right partition plates 21 respectively, and an upper opening accommodating groove 22 with an upward opening is formed between the third left and right partition plates 21 and the fourth left and right partition plates 21;
an upper partition plate 23 is arranged between the upper ends of the fourth left and right partition plates 21 and the upper ends of the fifth left and right partition plates 21, the left and right ends of the upper partition plate 23 between the upper ends of the fourth left and right partition plates 21 and the upper ends of the fifth left and right partition plates 21 are fixedly connected with the upper ends of the fourth left and right partition plates 21 and the upper ends of the fifth left and right partition plates 21 respectively, and a downward opening containing groove 24 is formed between the fourth left and right partition plates 21 and the fifth left and right partition plates 21;
a lower partition plate 25 is arranged between the lower ends of the fifth left and right partition plates 21 and the lower ends of the sixth left and right partition plates 21, the left and right ends of the lower partition plate 25 between the lower ends of the fifth left and right partition plates 21 and the lower ends of the sixth left and right partition plates 21 are fixedly connected with the lower ends of the fifth left and right partition plates 21 and the lower ends of the sixth left and right partition plates 21, respectively, and an upper opening accommodating groove 22 with an upward opening is formed between the fifth left and right partition plates 21 and the sixth left and right partition plates 21;
The lower opening accommodating groove 24 of the upper interval armor 2 and the corresponding upper opening accommodating groove 22 of the lower interval armor 2 are folded to form a closed accommodating cavity, a light unit consisting of two optical fiber belts 6 is arranged in the closed accommodating cavity, the optical fiber belts 6 are formed by combining at least two optical fibers, a first reinforcing piece 5 is arranged in the upper opening accommodating groove 22 of the upper interval armor 2, and a first reinforcing piece 5 is arranged in the lower opening accommodating groove 24 of the lower interval armor 2.
The outer fringe of the left and right sides of outer sheath 1 respectively is equipped with a first tear groove 11, and the cross-section of first tear groove 11 is the V-arrangement, and the crest line that the apex angle of first tear groove 11 in left side is located, and the crest line that the tank bottom of first tear groove 11 in right side is located on the plane that the bottom surface of spacing board 21 was located about the left side of spacing armor 2 of top was located, and the tank bottom of first tear groove 11 is the bottom of V-arrangement on the plane that the bottom surface was located about the spacing board 21 of the right side of spacing armor 2 of top was located.
Example 4
Please refer to fig. 15 and 16, the present embodiment is basically the same as embodiment 1, except that the optical unit is a butterfly unit, the butterfly unit is composed of a butterfly unit protection layer 7, two second reinforcing members 8 and an optical fiber 4, the two second reinforcing members 8 are located at the upper and lower sides of the optical fiber 4, the butterfly unit protection layer 7 is extruded outside the two second reinforcing members 8 and the optical fiber 4, and the outer edges of the butterfly unit protection layers 7 at the left and right sides of the optical fiber 4 are further provided with a second tearing groove 71.
The application relates to a butterfly-shaped lead-in optical cable with an adjustable reinforcing piece, which is characterized in that: the material of the outer protective layer 1 is polyethylene.
The application relates to a butterfly-shaped lead-in optical cable with an adjustable reinforcing piece, which is characterized in that: the material of the interval armor 2 is steel or aluminum.
The application relates to a butterfly-shaped lead-in optical cable with an adjustable reinforcing piece, which is characterized in that: the first reinforcement 5 is a square steel wire or glass fiber reinforced plastic rod.
The application relates to a butterfly-shaped lead-in optical cable with an adjustable reinforcing piece, which is characterized in that: the optical fiber 4 is a multimode optical fiber or a single mode optical fiber.
When the butterfly-shaped lead-in optical cable with the adjustable reinforcing part is provided with two interval armors 2, the two interval armors 2 are adhered by hot melt adhesive.
The application has the following beneficial effects:
(1) The first reinforcing member 5 and the optical unit are separated by the spacing armour 2, and when the optical cable is subjected to external force, the spacing armour 2 can prevent the first reinforcing member 5 from extruding the optical unit, so as to ensure the operation of the optical fiber 4 in the optical unit.
(2) When the optical cable is internally provided with the interval armor 2, each of the upper opening accommodating groove 22 and the lower opening accommodating groove 24 of the interval armor 2 is non-closed, so that the light unit and the first reinforcing member 5 inside the optical cable can be conveniently taken out during construction.
(3) The spacing armor 2 is provided with at least three left and right spacing plates 21, so that the pressure of the optical cable is more uniform when the optical cable is stressed by the upper side and the lower side, and the compression resistance of the optical cable is improved.
(4) An upper partition plate 23 is arranged beside the upper opening accommodating groove 22, and a lower partition plate 25 is arranged beside the lower opening accommodating groove 24, so that the partition armor 2 provides a larger stress surface when the optical cable is stressed by the upper side and the lower side, and the compression resistance of the optical cable is further improved.
(5) The number of first strength members 5 in the cable and which of the upper and lower open receiving grooves 22, 24 the first strength members 5 are located in can be adjusted according to the number of cores in the cable, the number of upper and lower open receiving grooves 22, 24, the tensile and compressive strength required to be achieved by the cable, etc., and the positions of the first strength members 5 can be adjusted after laying.
(6) The spacing armor 2 enables the optical cable to have certain elasticity on the left side and the right side, and improves the impact resistance of the left side and the right side of the optical cable.
(7) When two interval armors 2 are provided, a plurality of closed cavities can be formed by the two interval armors 2, so that the light units in the closed cavities are better protected.
(8) The optical cable has simple structure and lower cost.
The above examples 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 (10)
1. Butterfly drop cable with adjustable strength members, having an outer jacket (1), characterized in that: the outer protection layer (1) is internally provided with a spacing armor (2), the spacing armor (2) is composed of at least three left and right spacing plates (21), all the left and right spacing plates (21) are arranged in parallel, an upper spacing plate (23) is arranged between the upper ends of the 2n-1 th left and right spacing plates (21) and the upper ends of the 2n-1 th left and right spacing plates (21), the left and right ends of the upper spacing plate (23) between the upper ends of the 2n-1 th left and right spacing plates (21) are fixedly connected with the upper ends of the 2n-1 th left and right spacing plates (21) and the upper ends of the 2 n-th left and right spacing plates (21), and a downward opening accommodating groove (24) is formed between the 2n-1 th left and right spacing plates (21);
a lower partition plate (25) is arranged between the lower ends of the 2 n-th left and right partition plates (21) and the lower ends of the 2n+1-th left and right partition plates (21), the left and right ends of the lower partition plate (25) between the lower ends of the 2 n-th left and right partition plates (21) and the lower ends of the 2n+1-th left and right partition plates (21) are fixedly connected with the lower ends of the 2 n-th left and right partition plates (21) and the lower ends of the 2n+1-th left and right partition plates (21), and an upper opening accommodating groove (22) with an upward opening is formed between the 2 n-th left and right partition plates (21) and the 2n+1-th left and right partition plates (21), and n is a positive integer;
The lower opening accommodating groove (24) and the upper opening accommodating groove (22) are internally provided with a first reinforcing piece (5) and light units, the number of the light units is more than or equal to 1, and the sum of the numbers of the first reinforcing piece (5) and the light units is less than or equal to the sum of the numbers of the lower opening accommodating groove (24) and the upper opening accommodating groove (22).
2. A strength member adjustable butterfly drop cable according to claim 1, wherein: when the light unit is contained in the lower opening containing groove (24), a first tearing groove (11) is arranged at the outer edge of the outer protective layer (1) corresponding to the opening of the lower opening containing groove (24), and when the light unit is contained in the upper opening containing groove (22), a first tearing groove (11) is arranged at the outer edge of the outer protective layer (1) corresponding to the opening of the upper opening containing groove (22).
3. Butterfly drop cable with adjustable strength members, having an outer jacket (1), characterized in that: the outer protection layer (1) is internally provided with two interval armors (2), the two interval armors (2) are vertically arranged, the interval armors (2) are formed by at least three left and right interval plates (21), the number of the left and right interval plates (21) of the two interval armors (2) is the same, all the left and right interval plates (21) are arranged in parallel, the interval armors (2) positioned below are arranged from left to right, an upper interval plate (23) is arranged between the upper end of the 2n-1 left and right interval plate (21) and the upper end of the 2n-1 left and right interval plate (21), the left and right ends of the upper interval plate (23) between the upper end of the 2n-1 left and right interval plate (21) are respectively connected with the upper end of the 2n-1 left and right interval plate (21), and the upper end of the 2n-1 left and right interval plate (21) form a downward opening accommodating groove (24) between the 2n-1 left and 2 n-th interval plate (21);
A lower partition plate (25) is arranged between the lower ends of the 2 n-th left and right partition plates (21) and the lower ends of the 2n+1-th left and right partition plates (21), the left and right ends of the lower partition plate (25) between the lower ends of the 2 n-th left and right partition plates (21) and the lower ends of the 2n+1-th left and right partition plates (21) are fixedly connected with the lower ends of the 2 n-th left and right partition plates (21) and the lower ends of the 2n+1-th left and right partition plates (21), and an upper opening accommodating groove (22) with an upward opening is formed between the 2 n-th left and right partition plates (21) and the 2n+1-th left and right partition plates (21);
the upper spacing armor (2) is provided with a lower spacing plate (25) from left to right between the lower end of the 2n-1 left spacing plate (21) and the lower end of the 2n left spacing plate (21), the left and right ends of the lower spacing plate (25) between the lower end of the 2n-1 left spacing plate (21) and the lower end of the 2n left spacing plate (21) are fixedly connected with the lower end of the 2n-1 left spacing plate (21) and the lower end of the 2n left spacing plate (21), and an upper opening accommodating groove (22) with an upward opening is formed between the 2n-1 left spacing plate (21) and the 2n left spacing plate (21);
an upper partition plate (23) is arranged between the upper ends of the 2 n-th left and right partition plates (21) and the upper ends of the 2n+1-th left and right partition plates (21), the left and right ends of the upper partition plate (23) between the upper ends of the 2 n-th left and right partition plates (21) and the upper ends of the 2n+1-th left and right partition plates (21) are fixedly connected with the upper ends of the 2 n-th left and right partition plates (21) and the upper ends of the 2n+1-th left and right partition plates (21), and a downward opening accommodating groove (24) with a downward opening is formed between the 2 n-th left and right partition plates (21) and the 2n+1-th left and right partition plates (21), and n is a positive integer;
The lower opening accommodating groove (24) of the upper interval armor (2) and the upper opening accommodating groove (22) of the corresponding lower interval armor (2) are folded to form a closed accommodating cavity, a light unit is arranged in the closed accommodating cavity, a first reinforcing piece (5) is arranged in the upper opening accommodating groove (22) of the upper interval armor (2), and a first reinforcing piece (5) is arranged in the lower opening accommodating groove (24) of the lower interval armor (2).
4. Butterfly drop cable with adjustable strength members, having an outer jacket (1), characterized in that: the outer protection layer (1) is internally provided with two interval armors (2), the two interval armors (2) are vertically arranged, the interval armors (2) are composed of at least three left and right interval plates (21), the number of the left and right interval plates (21) of the two interval armors (2) is the same, all the left and right interval plates (21) are arranged in parallel, the interval armors (2) positioned below are arranged from left to right, a lower interval plate (25) is arranged between the lower end of the 2n-1 left and right interval plate (21) and the lower end of the 2n-1 left and right interval plate (21), the left and right ends of the lower interval plate (25) between the lower end of the 2n-1 left and right interval plate (21) are respectively connected with the lower end of the 2n-1 left and right interval plate (21), and the lower end of the 2n-1 left and right interval plate (21) form an upward opening accommodating groove (22) between the 2n-1 left and 2 n-th interval plate (21);
An upper partition plate (23) is arranged between the upper ends of the 2 n-th left and right partition plates (21) and the upper ends of the 2n+1-th left and right partition plates (21), the left and right ends of the upper partition plate (23) between the upper ends of the 2 n-th left and right partition plates (21) and the upper ends of the 2n+1-th left and right partition plates (21) are fixedly connected with the upper ends of the 2 n-th left and right partition plates (21) and the upper ends of the 2n+1-th left and right partition plates (21), and a downward opening accommodating groove (24) is formed between the 2 n-th left and right partition plates (21) and the 2n+1-th left and right partition plates (21);
an upper spacing armor (2) is arranged between the upper end of a 2n-1 left spacing plate (21) and the upper end of a 2n left spacing plate (21) from left to right, the left and right ends of the upper spacing plate (23) between the upper end of the 2n-1 left spacing plate (21) and the upper end of the 2n left spacing plate (21) are fixedly connected with the upper end of the 2n-1 left spacing plate (21) and the upper end of the 2n left spacing plate (21), and a downward opening accommodating groove (24) is formed between the 2n-1 left spacing plate (21) and the 2n left spacing plate (21);
a lower partition plate (25) is arranged between the lower ends of the 2 n-th left and right partition plates (21) and the lower ends of the 2n+1-th left and right partition plates (21), the left and right ends of the lower partition plate (25) between the lower ends of the 2 n-th left and right partition plates (21) and the lower ends of the 2n+1-th left and right partition plates (21) are fixedly connected with the lower ends of the 2 n-th left and right partition plates (21) and the lower ends of the 2n+1-th left and right partition plates (21), and an upper opening accommodating groove (22) with an upward opening is formed between the 2 n-th left and right partition plates (21) and the 2n+1-th left and right partition plates (21), and n is a positive integer;
The lower opening accommodating groove (24) of the upper interval armor (2) and the upper opening accommodating groove (22) of the corresponding lower interval armor (2) are folded to form a closed accommodating cavity, a light unit is arranged in the closed accommodating cavity, a first reinforcing piece (5) is arranged in the upper opening accommodating groove (22) of the upper interval armor (2), and a first reinforcing piece (5) is arranged in the lower opening accommodating groove (24) of the lower interval armor (2).
5. A strength member adjustable butterfly drop cable according to claim 3 or claim 4, wherein: the outer fringe of the left and right sides of outer sheath (1) respectively is equipped with a first tear groove (11), and the cross-section of first tear groove (11) is the V-arrangement, and the crest line that the tank bottom of first tear groove (11) in left side is located, and the crest line that the bottom surface of the left and right partition plate (21) in the leftmost side of interval armor (2) of top is located on the plane, and the crest line that the tank bottom of first tear groove (11) in right side is located on the plane that the bottom surface of the left and right partition plate (21) in the rightmost side of interval armor (2) of top is located.
6. A strength member adjustable butterfly drop cable according to claim 5, wherein: the light unit is composed of a loose tube (3) and at least one optical fiber (4) positioned in the loose tube (3); or at least one optical fiber ribbon (6), wherein the optical fiber ribbon (6) is formed by combining at least two optical fibers (4), and the optical fiber ribbon (6) is stacked when the at least two optical fiber ribbons (6).
7. A strength member adjustable butterfly drop cable according to claim 5, wherein: the optical unit is a butterfly unit, the butterfly unit is composed of a butterfly unit protection layer (7), two second reinforcing pieces (8) and at least one optical fiber (4), the two second reinforcing pieces (8) are located all the optical fibers (4) to form an optical fiber group, the butterfly unit protection layer (7) is extruded outside the whole body of the two second reinforcing pieces (8) and the optical fiber group, and the outer edges of the butterfly unit protection layers (7) on the left side and the right side of the optical fiber group are respectively provided with a second tearing groove (71).
8. A strength member adjustable butterfly drop cable according to claim 7, wherein: the optical fiber (4) is a multimode optical fiber or a single mode optical fiber.
9. A strength member adjustable butterfly drop cable according to claim 8, wherein: the material of the interval armor (2) is steel or aluminum.
10. A strength member adjustable butterfly drop cable according to claim 9, wherein: the first reinforcement (5) is a square steel wire or glass fiber reinforced plastic rod.
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| CN202310867701.4A CN116594132B (en) | 2023-07-16 | 2023-07-16 | Butterfly-shaped leading-in optical cable with adjustable reinforcing piece |
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| CN202310867701.4A CN116594132B (en) | 2023-07-16 | 2023-07-16 | Butterfly-shaped leading-in optical cable with adjustable reinforcing piece |
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| CN116594132B CN116594132B (en) | 2023-12-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117784340A (en) * | 2024-02-24 | 2024-03-29 | 常熟迅联光电科技有限公司 | Rectangular optical fiber ribbon cable and rectangular butterfly-shaped lead-in cable |
| CN117826350A (en) * | 2024-03-05 | 2024-04-05 | 苏州知遇光电科技有限公司 | Plug-in butterfly-shaped optical cable and optical cable |
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| CN117784340A (en) * | 2024-02-24 | 2024-03-29 | 常熟迅联光电科技有限公司 | Rectangular optical fiber ribbon cable and rectangular butterfly-shaped lead-in cable |
| CN117784340B (en) * | 2024-02-24 | 2024-04-30 | 常熟迅联光电科技有限公司 | Rectangular optical fiber ribbon cable and rectangular butterfly-shaped lead-in cable |
| CN117826350A (en) * | 2024-03-05 | 2024-04-05 | 苏州知遇光电科技有限公司 | Plug-in butterfly-shaped optical cable and optical cable |
| CN117826350B (en) * | 2024-03-05 | 2024-05-03 | 苏州知遇光电科技有限公司 | Plug-in butterfly-shaped optical cable and optical cable |
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