CN117784341A - Twelve-unit butterfly-shaped lead-in unit optical cable - Google Patents
Twelve-unit butterfly-shaped lead-in unit optical cable Download PDFInfo
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- CN117784341A CN117784341A CN202410204827.8A CN202410204827A CN117784341A CN 117784341 A CN117784341 A CN 117784341A CN 202410204827 A CN202410204827 A CN 202410204827A CN 117784341 A CN117784341 A CN 117784341A
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- 239000013307 optical fiber Substances 0.000 claims abstract description 28
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- 230000003014 reinforcing effect Effects 0.000 claims description 17
- 239000011241 protective layer Substances 0.000 claims description 12
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- 239000000463 material Substances 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 3
- 239000003063 flame retardant Substances 0.000 claims description 3
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 229920001684 low density polyethylene Polymers 0.000 claims description 3
- 239000004702 low-density polyethylene Substances 0.000 claims description 3
- 229920001179 medium density polyethylene Polymers 0.000 claims description 3
- 239000004701 medium-density polyethylene Substances 0.000 claims description 3
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
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- 229910000831 Steel Inorganic materials 0.000 description 4
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- 230000035939 shock Effects 0.000 description 1
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Abstract
The invention belongs to the field of cables, and particularly relates to a twelve-unit butterfly-shaped lead-in unit optical cable which consists of a cable core and an outer sheath, wherein the outer sheath is extruded outside the cable core, and the optical cable is characterized in that: the cable core consists of an inner protection layer and twelve butterfly-shaped introducing units, wherein the inner protection layer consists of six supporting frames, the six supporting frames are spliced into a six-mango star, six first accommodating cavities are formed in six corners of the six-mango star, six second accommodating cavities are formed in the middle of the six-mango star, one butterfly-shaped introducing unit is arranged in each of the first accommodating cavities and the second accommodating cavities, and optical communication components are arranged in the butterfly-shaped introducing units; the optical fiber splitting device has the advantages that the structure is simple, the production efficiency is high, the supporting frame can be repeatedly used, the butterfly-shaped introducing unit is torsion-resistant, the optical cable is high in compression resistance and impact resistance, the splitting opening can be prevented from aging, the optical fiber is separated from the splitting opening, the optical communication component is convenient to take and use, and the like.
Description
Technical Field
The invention belongs to the field of cables, and particularly relates to a twelve-unit butterfly-shaped lead-in unit optical cable.
Background
In the prior art, as disclosed in CN116609905a, a four-unit butterfly-shaped lead-in optical cable is provided with four butterfly-shaped lead-in units and an outer sheath, wherein each butterfly-shaped lead-in unit is composed of an optical fiber, two reinforcing pieces and a butterfly-shaped sheath, the two reinforcing pieces are respectively positioned at the upper side and the lower side of the optical fiber, the optical fiber and the two reinforcing pieces are integrally covered by the butterfly-shaped sheath, and the butterfly-shaped sheaths at the left side and the right side of the optical fiber are provided with tearing slits which are sunken towards the optical fiber; the method is characterized in that: the frame assembly is composed of four frame parts and a reinforcing part, the frame parts are composed of a first assembly body, a second assembly body, a third assembly body and a connecting body, the frame parts are of an integrated structure, a first folding groove is formed in the upper surface of the connecting position of the first assembly body and the second assembly body, a second folding groove is formed in the upper surface of the connecting position of the second assembly body and the third assembly body, the upper surfaces of the first assembly body, the second assembly body and the third assembly body are in the same plane, the first assembly body is connected with the lower surface of the second assembly body, the second assembly body is connected with the lower surface of the third assembly body, the first assembly body is positioned on the left side of the second assembly body, the second assembly body is positioned on the left side of the third assembly body, the connecting body extends from the right side of the first assembly body, connecting holes penetrating front and back are formed in the right side of the third assembly body, gaps are formed between the adjacent connecting bodies, the lengths of the adjacent connecting bodies are A, and the lengths of the gaps are less than or equal to 3A; the connecting bodies of the three frame parts are respectively embedded into the gaps of the other frame part, the reinforcing parts penetrate through all the connecting holes and are connected in series, when all the frame parts in the frame assembly are in an unbent state, on a plane vertical to the axis of the reinforcing parts, the adjacent frame parts are mutually vertical, the adjacent frame parts form a right-angle space, and the two surfaces of the adjacent frame parts forming the right-angle space are the upper surface of one frame part and the lower surface of the other frame part; when all the frame components in the frame assembly are in a bending state, the second assembly of each frame component is bent at right angles along the first folding groove of the frame component, the third assembly of each frame component is bent at right angles along the second folding groove of the frame component, after the right angle bending is finished, the non-bending end of the third assembly of each frame component is close to the right angle bending position of the first assembly of the previous frame component in a clockwise direction on a plane perpendicular to the axis of the reinforcing component, and the first assembly, the second assembly, the third assembly and the first assembly of the previous frame component of each frame component enclose a cavity with square cross section; the butterfly-shaped introducing units are positioned in square cavities, and only one butterfly-shaped introducing unit is arranged in each square cavity; the outer sheath is coated outside the frame assembly.
The prior art has the following defects: the four frame parts can only form four cavities which can accommodate the butterfly-shaped lead-in units, and there is still room for further lifting.
Disclosure of Invention
In order to solve the problems, the invention aims to disclose a twelve-unit butterfly-shaped lead-in unit optical cable, which is realized by adopting the following technical scheme.
The utility model provides a twelve unit butterfly-shaped introducing unit optical cable comprises cable core and outer sheath, and outer sheath extrusion molding is outside the cable core, its characterized in that: the cable core is composed of an inner protection layer and twelve butterfly-shaped introducing units, the inner protection layer is composed of six supporting frames, the supporting frames are composed of a first supporting arm, a second supporting arm and a third supporting arm in the same cross section, one end of the first supporting arm is connected with one end of the second supporting arm, an included angle between the first supporting arm and the second supporting arm is 60 degrees, the other end of the second supporting arm is connected with one end of the third supporting arm, an included angle between the second supporting arm and the third supporting arm is 60 degrees, the first supporting arm and the third supporting arm are located on the same side of the second supporting arm, an accommodating groove is formed between the first supporting arm, the second supporting arm and the third supporting arm, an attaching face is formed at a folded angle of the second supporting arm and the third supporting arm, and the included angle between the attaching face and the second supporting arm is 120 degrees;
along clockwise, the joint face of preceding support frame is located the holding tank of next support frame, the joint face of preceding support frame and the laminating of the second support arm of next support frame, the other end of the first support arm of next support frame and the laminating of the second support arm of preceding support frame, the other end of the third support arm of next support frame and the laminating of the third support arm of previous support frame, form a regular triangle's first appearance chamber between the second support arm of preceding support frame and the second support arm of next support frame, the first support arm, form a regular triangle's second appearance chamber between the third support arm of preceding support frame and the second support arm of next support frame, the third support arm respectively be equipped with a triangle's butterfly and introduce the unit in first appearance chamber and the second appearance intracavity, be equipped with optical communication part in the butterfly introducing the unit.
The twelve-unit butterfly-shaped lead-in unit optical cable is characterized in that: the side wall of the second supporting arm is provided with a limiting part, the limiting part is positioned outside the accommodating groove, the other end of the first supporting arm of the latter supporting arm is propped against the limiting part on the second supporting arm of the former supporting arm, and the positioning of the supporting arm is facilitated.
The utility model provides a twelve unit butterfly-shaped introducing unit optical cable comprises cable core and outer sheath, and outer sheath extrusion molding is outside the cable core, its characterized in that: the cable core is composed of an integrally formed inner protection layer and twelve butterfly-shaped introducing units, the inner protection layer is composed of six pairs of first protection walls, six second protection walls and six third protection walls, two ends of the six third protection walls are connected in the same cross section to form a regular-hexagon inner cavity, the six pairs of first protection walls are located outside the regular-hexagon inner cavity, the six second protection walls are located inside the regular-hexagon inner cavity, one end of each pair of first protection walls is connected, the other end of each pair of first protection walls is connected with two ends of the corresponding third protection wall respectively and forms a regular-triangle first containing cavity, one end of the six second protection walls is connected with one inner corner of the regular-hexagon inner cavity respectively, the other ends of the six second protection walls are connected together, a regular-triangle second containing cavity is formed between the third protection walls and the corresponding two second protection walls, a triangular butterfly-shaped introducing unit is arranged in each of the first containing cavity and the second containing cavity, and the butterfly-shaped introducing unit is internally provided with optical communication parts.
The twelve-unit butterfly-shaped lead-in unit optical cable is characterized in that: the butterfly-shaped introducing unit is regular triangle, in the same cross section, the butterfly-shaped introducing unit comprises a butterfly-shaped introducing unit protecting layer, a hanging wire, two connecting parts, at least one optical fiber and two reinforcing parts, a V-shaped groove is formed above the butterfly-shaped introducing unit protecting layer, the two reinforcing parts are respectively positioned in the butterfly-shaped introducing unit protecting layers on two sides of the V-shaped groove, the bottom of the V-shaped groove is a tearing opening, the optical fiber is positioned in the butterfly-shaped introducing unit protecting layer right below the tearing opening, the hanging wire protecting layer is positioned above the V-shaped groove, the hanging wire is positioned in the hanging wire protecting layer, the hanging wire protecting layer is respectively connected with two side walls of the V-shaped groove through the connecting parts, and the hanging wire protecting layer and the butterfly-shaped introducing unit protecting layer form a spacing groove.
The twelve-unit butterfly-shaped lead-in unit optical cable is characterized in that: the butterfly-shaped introducing unit sheath, the hanging wire sheath and the connecting component are integrally formed.
The twelve-unit butterfly-shaped lead-in unit optical cable is characterized in that: the side length of the butterfly-shaped introducing unit is smaller than the side length of the corresponding first accommodating cavity or second accommodating cavity and is larger than half of the side length of the corresponding first accommodating cavity or second accommodating cavity.
The twelve-unit butterfly-shaped lead-in unit optical cable is characterized in that: the butterfly-shaped introducing unit sheath, the hanging wire sheath and the connecting component are made of flame-retardant polyolefin.
The twelve-unit butterfly-shaped lead-in unit optical cable is characterized in that: a filling component is arranged between two adjacent first cavities, and the filling component is made of polypropylene.
The twelve-unit butterfly-shaped lead-in unit optical cable is characterized in that: the material of the outer protective layer is high-density polyethylene or medium-density polyethylene or low-density polyethylene.
The twelve-unit butterfly-shaped lead-in unit optical cable is characterized in that: the material of the inner protective layer is polybutylene terephthalate or modified polypropylene.
The twelve-unit butterfly-shaped lead-in unit optical cable is characterized in that: the hanging wire is a phosphorized steel wire or a glass fiber reinforced plastic rod.
The twelve-unit butterfly-shaped lead-in unit optical cable is characterized in that: the reinforcement is a phosphorized steel wire or a glass fiber reinforced plastic rod.
The twelve-unit butterfly-shaped lead-in unit optical cable is characterized in that: the type of the optical fiber is G.652 type, G.653 type, G.654 type, G.655 type, G.656 type, G.657 type, A1a type, A1b type or A1c type.
Therefore, the application has the following beneficial effects:
1. twelve accommodating cavities capable of accommodating butterfly-shaped introducing units are formed in the inner protection layer by six support frames, and twelve protection components are needed compared with the twelve butterfly-shaped introducing units in the traditional protection mode, so that the production efficiency is higher, the energy is saved, and the cost is saved.
2. The inner protective layer is formed by splicing six support frames, so that the butterfly-shaped introducing unit is convenient to take, and the support frames are not required to be damaged when being taken, so that the support frames can be recycled, resources are saved, and the butterfly-shaped introducing unit is environment-friendly.
3. The butterfly-shaped introducing unit is in a regular triangle shape, the side length of the butterfly-shaped introducing unit is smaller than the side length of the corresponding first containing cavity or second containing cavity and is larger than half of the side length of the corresponding first containing cavity or second containing cavity, and the butterfly-shaped introducing unit can be prevented from twisting in the corresponding first containing cavity or second containing cavity, so that the transmission performance of the optical fiber is affected.
4. The lifting wire sheath and the butterfly-shaped introducing unit sheath are connected to the two sides of the V-shaped groove through the two connecting parts, when pressure from the lifting wire sheath is received, the pressure is conducted to the two sides through the two connecting parts, and the pressure cannot directly act on the optical fiber or the optical fiber belt, so that the pressure resistance of the butterfly-shaped introducing unit is improved.
5. The lifting wire sheath is connected with the butterfly-shaped introducing unit sheath through the two connecting parts, so that the spacing groove plays a role in stretching and contracting, and the compression resistance and the shock resistance of the butterfly-shaped introducing unit can be improved.
6. The tear is located the inside of butterfly-shaped introducing unit, does not communicate with the outside, can prevent that butterfly-shaped introducing unit sheath from using for a long time and ageing, fracture in tear department to make optic fibre expose in the outside, influence the use.
7. The tearing opening is positioned at the bottom of the V-shaped groove, and the V-shaped groove is relatively large, so that the optical fiber or the optical fiber ribbon is more convenient to peel.
Drawings
Fig. 1 is a schematic perspective view of a section of embodiment 1.
Fig. 2 is a schematic structural view of the end face of embodiment 1.
Fig. 3 is a schematic diagram of the structure of the end face of the inner protective layer of embodiment 1.
Fig. 4 is a schematic structural view of an end face of the support frame of embodiment 1.
Fig. 5 is a schematic perspective view of a section of butterfly introducing unit of embodiment 1.
Fig. 6 is a schematic diagram of the structure of the end face of a section of the butterfly introduction unit of embodiment 1.
Fig. 7 is a schematic structural diagram of an inner protective layer in a section of embodiment 2.
Fig. 8 is a schematic structural view of an end face of the inner protective layer of embodiment 2.
Fig. 9 is a schematic perspective view of a section of butterfly introducing unit of embodiment 3.
Fig. 10 is a schematic diagram of the structure of the end face of a section of butterfly introduction unit of embodiment 3.
In the figure: 1. outer jacket, 2 filler member, 3 inner protective layer, 31 support bracket, 311 first support arm, 312 second support arm, 313 receiving slot, 314 spacing member, 315 third support arm, 316 faying surface, 32 first receiving cavity, 33 second receiving cavity, 34 first protective wall, 35 second protective wall, 36 third protective wall, 4 butterfly-shaped lead-in unit, 41 butterfly-shaped lead-in unit jacket, 42 messenger wire jacket, 43 messenger wire, 44 spacing slot, 45 connecting member, 46 tear seam, 47 optical fiber, 48 strength member, 49 optical fiber ribbon.
Detailed Description
Example 1
As shown in fig. 1 to 6, a twelve-unit butterfly-shaped lead-in unit optical cable is composed of a cable core and an outer sheath 1, wherein the outer sheath 1 is extruded outside the cable core, and is characterized in that: the cable core is composed of an inner protection layer 3 and twelve butterfly-shaped introducing units 4, the inner protection layer 3 is composed of six supporting frames 31, in the same cross section, each supporting frame 31 is composed of a first supporting arm 311, a second supporting arm 312 and a third supporting arm 315, one end of each first supporting arm 311 is connected with one end of each second supporting arm 312, an included angle between each first supporting arm 311 and each second supporting arm 312 is 60 degrees, the other end of each second supporting arm 312 is connected with one end of each third supporting arm 315, an included angle between each second supporting arm 312 and each third supporting arm 315 is 60 degrees, each first supporting arm 311 and each third supporting arm 315 are located on the same side of each second supporting arm 312, an accommodating groove 313 is formed between each first supporting arm 311, each second supporting arm 312 and each third supporting arm 315, an attaching face 316 is formed at a folding angle of each second supporting arm 312 and each third supporting arm 315, an included angle between each attaching face 316 and each second supporting arm 312 is 120 degrees, a limiting part 314 is arranged on a side wall of each second supporting arm 312, and the limiting part 314 is located outside the accommodating grooves 313;
the attaching surface 316 of the previous support frame 31 is positioned in the accommodating groove 313 of the next support frame 31 in the clockwise direction, the attaching surface 316 of the previous support frame 31 is attached to the second support arm 312 of the next support frame 31, the other end of the first support arm 311 of the next support frame 31 is attached to the second support arm 312 of the previous support frame 31 and abuts against the limiting component 314 on the second support arm 312 of the previous support frame 31, the other end of the third support arm 315 of the next support frame 31 is attached to the third support arm 315 of the previous support frame 31, a first right triangle-shaped accommodating cavity 32 is formed between the second support arm 312 of the previous support frame 31 and the second support arm 312 and the first support arm 311 of the next support frame 31, and a second right triangle-shaped accommodating cavity 33 is formed between the third support arm 315 of the previous support frame 31 and the second support arm 312 and the third support arm 315 of the next support frame 31;
the first cavity 32 and the second cavity 33 are respectively provided with a butterfly-shaped introducing unit 4, the butterfly-shaped introducing unit 4 is in a regular triangle shape, in the same cross section, the butterfly-shaped introducing unit 4 is composed of a butterfly-shaped introducing unit protecting layer 41, a hanging wire protecting layer 42, a hanging wire 43, two connecting parts 45, an optical fiber 47 and two reinforcing parts 48, a V-shaped groove is formed above the butterfly-shaped introducing unit protecting layer 41, the two reinforcing parts 48 are respectively positioned in the butterfly-shaped introducing unit protecting layers 41 at two sides of the V-shaped groove, a tearing opening 46 is formed at the bottom of the V-shaped groove, the optical fiber 47 is positioned in the butterfly-shaped introducing unit protecting layer 41 right below the tearing opening 46, the hanging wire protecting layer 42 is positioned above the V-shaped groove, the hanging wire 43 is positioned in the hanging wire protecting layer 42, and two side walls of the hanging wire protecting layer 42 and the V-shaped groove are respectively connected through the connecting parts 45, and the hanging wire protecting layer 42 and the butterfly-shaped introducing unit protecting layer 41 form a spacing groove 44.
Example 2
Referring to fig. 7 and 8, and referring to fig. 1, 2, 5 and 6, a twelve-unit butterfly lead-in unit optical cable is composed of a cable core and an outer sheath 1, wherein the outer sheath 1 is extruded outside the cable core, and is characterized in that: the cable core is formed by an integrally formed inner protection layer 3 and twelve butterfly-shaped introducing units 4, the inner protection layer 3 is formed by six pairs of first protection walls 34, six second protection walls 35 and six third protection walls 36, in the same cross section, two ends of the six third protection walls 36 are connected in pairs to form a regular-hexagon inner cavity, the six pairs of first protection walls 34 are positioned outside the regular-hexagon inner cavity, the six second protection walls 35 are positioned inside the regular-hexagon inner cavity, one end of each pair of first protection walls 34 is connected, the other end of each pair of first protection walls 34 is respectively connected with two ends of the corresponding third protection wall 36, and forms a regular-triangle first containing cavity 32, one end of each of the six second protection walls 35 is respectively connected with one inner corner of the regular-hexagon inner cavity, the other ends of the six second protection walls 35 are connected together, and a regular-triangle second containing cavity 33 is formed between the third protection walls 36 and the corresponding two second protection walls 35;
the first cavity 32 and the second cavity 33 are respectively provided with a butterfly-shaped introducing unit 4, the butterfly-shaped introducing unit 4 is in a regular triangle shape, in the same cross section, the butterfly-shaped introducing unit 4 is composed of a butterfly-shaped introducing unit protecting layer 41, a hanging wire protecting layer 42, a hanging wire 43, two connecting parts 45, an optical fiber 47 and two reinforcing parts 48, a V-shaped groove is formed above the butterfly-shaped introducing unit protecting layer 41, the two reinforcing parts 48 are respectively positioned in the butterfly-shaped introducing unit protecting layers 41 at two sides of the V-shaped groove, a tearing opening 46 is formed at the bottom of the V-shaped groove, the optical fiber 47 is positioned in the butterfly-shaped introducing unit protecting layer 41 right below the tearing opening 46, the hanging wire protecting layer 42 is positioned above the V-shaped groove, the hanging wire 43 is positioned in the hanging wire protecting layer 42, and two side walls of the hanging wire protecting layer 42 and the V-shaped groove are respectively connected through the connecting parts 45, and the hanging wire protecting layer 42 and the butterfly-shaped introducing unit protecting layer 41 form a spacing groove 44.
Example 3
As shown in fig. 9 and 10, and referring to fig. 1 to 4, a twelve-unit butterfly lead-in unit optical cable is composed of a cable core and an outer sheath 1, wherein the outer sheath 1 is extruded outside the cable core, and is characterized in that: the cable core is composed of an inner protection layer 3 and twelve butterfly-shaped introducing units 4, the inner protection layer 3 is composed of six supporting frames 31, in the same cross section, each supporting frame 31 is composed of a first supporting arm 311, a second supporting arm 312 and a third supporting arm 315, one end of each first supporting arm 311 is connected with one end of each second supporting arm 312, an included angle between each first supporting arm 311 and each second supporting arm 312 is 60 degrees, the other end of each second supporting arm 312 is connected with one end of each third supporting arm 315, an included angle between each second supporting arm 312 and each third supporting arm 315 is 60 degrees, each first supporting arm 311 and each third supporting arm 315 are located on the same side of each second supporting arm 312, an accommodating groove 313 is formed between each first supporting arm 311, each second supporting arm 312 and each third supporting arm 315, an attaching face 316 is formed at a folding angle of each second supporting arm 312 and each third supporting arm 315, an included angle between each attaching face 316 and each second supporting arm 312 is 120 degrees, a limiting part 314 is arranged on a side wall of each second supporting arm 312, and the limiting part 314 is located outside the accommodating grooves 313;
the attaching surface 316 of the previous support frame 31 is positioned in the accommodating groove 313 of the next support frame 31 in the clockwise direction, the attaching surface 316 of the previous support frame 31 is attached to the second support arm 312 of the next support frame 31, the other end of the first support arm 311 of the next support frame 31 is attached to the second support arm 312 of the previous support frame 31 and abuts against the limiting component 314 on the second support arm 312 of the previous support frame 31, the other end of the third support arm 315 of the next support frame 31 is attached to the third support arm 315 of the previous support frame 31, a first right triangle-shaped accommodating cavity 32 is formed between the second support arm 312 of the previous support frame 31 and the second support arm 312 and the first support arm 311 of the next support frame 31, and a second right triangle-shaped accommodating cavity 33 is formed between the third support arm 315 of the previous support frame 31 and the second support arm 312 and the third support arm 315 of the next support frame 31;
the first cavity 32 and the second cavity 33 are respectively provided with a butterfly-shaped introducing unit 4, the butterfly-shaped introducing units 4 are in regular triangle shape, in the same cross section, the butterfly-shaped introducing units 4 are composed of a butterfly-shaped introducing unit protecting layer 41, a hanging wire protecting layer 42, a hanging wire 43, two connecting parts 45, an optical fiber 47 and two reinforcing parts 48, a V-shaped groove is formed above the butterfly-shaped introducing unit protecting layer 41, the two reinforcing parts 48 are respectively positioned in the butterfly-shaped introducing unit protecting layers 41 at two sides of the V-shaped groove, a tearing opening 46 is formed at the bottom of the V-shaped groove, an optical fiber ribbon 49 is positioned in the butterfly-shaped introducing unit protecting layer 41 right below the tearing opening 46, the hanging wire protecting layer 42 is positioned above the V-shaped groove, the hanging wire 43 is positioned in the hanging wire protecting layer 42, the hanging wire protecting layer 42 is respectively connected with two side walls of the V-shaped groove through the connecting parts 45, the hanging wire protecting layer 42 and the butterfly-shaped introducing unit protecting layer 41 form a spacing groove 44, and the optical fiber ribbon 49 is formed by combining at least two optical fibers 47.
The application is said a twelve unit butterfly-shaped introducing unit optical cable, its characterized in that: the butterfly-shaped introduction unit sheath 41, the suspension wire sheath 42, and the connection member 45 are integrally formed.
The application is said a twelve unit butterfly-shaped introducing unit optical cable, its characterized in that: the side length of the butterfly-shaped introducing unit 4 is smaller than the side length of the corresponding first accommodating cavity 32 or second accommodating cavity 33, and is larger than half of the side length of the corresponding first accommodating cavity 32 or second accommodating cavity 33.
The application is said a twelve unit butterfly-shaped introducing unit optical cable, its characterized in that: the butterfly-shaped introducing unit sheath 41, the suspension wire sheath 42 and the connecting member 45 are made of flame-retardant polyolefin.
The application is said a twelve unit butterfly-shaped introducing unit optical cable, its characterized in that: a filling component 2 is arranged between two adjacent first cavities 32, and the material of the filling component 2 is polypropylene.
The application is said a twelve unit butterfly-shaped introducing unit optical cable, its characterized in that: the material of the outer protective layer 1 is high-density polyethylene or medium-density polyethylene or low-density polyethylene.
The application is said a twelve unit butterfly-shaped introducing unit optical cable, its characterized in that: the material of the inner protective layer 3 is polybutylene terephthalate or modified polypropylene.
The application is said a twelve unit butterfly-shaped introducing unit optical cable, its characterized in that: the suspension wire 43 is a phosphorized steel wire or a glass fiber reinforced plastic rod.
The application is said a twelve unit butterfly-shaped introducing unit optical cable, its characterized in that: the stiffener 48 is a phosphated steel wire or fiberglass reinforced plastic rod.
The application is said a twelve unit butterfly-shaped introducing unit optical cable, its characterized in that: the type of the optical fiber 47 is G.652 type, G.653 type, G.654 type, G.655 type, G.656 type, G.657 type, A1a type, A1b type or A1c type.
The application has the following beneficial effects:
1. twelve accommodating cavities capable of accommodating the butterfly-shaped introducing units 4 are formed in the inner protective layer 3 by six supporting frames 31, and twelve protective components are needed compared with the twelve butterfly-shaped introducing units in the traditional protective mode, so that the production efficiency is higher, the energy is saved, and the cost is saved.
Claims (10)
1. The utility model provides a twelve unit butterfly-shaped introducing unit optical cable comprises cable core and outer sheath (1), and outer sheath (1) extrusion molding is outside the cable core, its characterized in that: the cable core is composed of an inner protection layer (3) and twelve butterfly-shaped introducing units (4), the inner protection layer (3) is composed of six supporting frames (31), in the same cross section, each supporting frame (31) is composed of a first supporting arm (311), a second supporting arm (312) and a third supporting arm (315), one end of each first supporting arm (311) is connected with one end of each second supporting arm (312), an included angle between each first supporting arm (311) and each second supporting arm (312) is 60 degrees, the other end of each second supporting arm (312) is connected with one end of each third supporting arm (315), an included angle between each second supporting arm (312) and each third supporting arm (315) is 60 degrees, the first supporting arm (311) and each third supporting arm (315) are located on the same side of each second supporting arm (312), an accommodating groove (313) is formed between each first supporting arm (311), each second supporting arm (312) and each third supporting arm (315), an included angle between each second supporting arm (312) and each third supporting arm (315) is formed into an attaching face (316), and the attaching face (316) is 120 degrees between each second supporting arm (312); along clockwise, the laminating face (316) of preceding support frame (31) is located in holding tank (313) of next support frame (31), laminating face (316) of preceding support frame (31) and second support arm (312) of next support frame (31) are laminated, the other end of first support arm (311) of next support frame (31) and second support arm (312) of preceding support frame (31) are laminated, the other end of third support arm (315) of next support frame (31) and third support arm (315) of previous support frame (31) are laminated, form a right triangle-shaped's first appearance chamber (32) between second support arm (312) of next support frame (31) and second support arm (312) of first support arm (311), form a right triangle-shaped appearance chamber (33) between third support arm (315) of next support frame (31) and second support arm (312) of next support frame (31), the butterfly-shaped unit (4) are introduced in each butterfly-shaped unit (4) and are equipped with the butterfly-shaped unit (4).
2. A twelve-cell butterfly drop cable according to claim 1, wherein: the side wall of the second supporting arm (312) is provided with a limiting part (314), the limiting part (314) is positioned outside the accommodating groove (313), and the other end of the first supporting arm (311) of the rear supporting frame (31) is propped against the limiting part (314) on the second supporting arm (312) of the front supporting frame (31).
3. The utility model provides a twelve unit butterfly-shaped introducing unit optical cable comprises cable core and outer sheath (1), and outer sheath (1) extrusion molding is outside the cable core, its characterized in that: the cable core is formed by an integrally formed inner protection layer (3) and twelve butterfly-shaped introducing units (4), the inner protection layer (3) is formed by six pairs of first protection walls (34), six second protection walls (35) and six third protection walls (36), two ends of the six third protection walls (36) are connected in pairs to form a regular-hexagon inner cavity in the same cross section, the six pairs of first protection walls (34) are positioned outside the regular-hexagon inner cavity, the six second protection walls (35) are positioned inside the regular-hexagon inner cavity, one end of each pair of first protection walls (34) is connected, and the other end of each pair of first protection walls (34) is connected with two ends of the corresponding third protection wall (36) respectively to form a regular-triangle first accommodating cavity (32); one end of each of the six second protection walls (35) is connected with one inner corner of the inner cavity of the regular hexagon, the other ends of the six second protection walls (35) are connected together, a regular triangle second containing cavity (33) is formed between each of the third protection walls (36) and the corresponding two second protection walls (35), a triangle butterfly-shaped introducing unit (4) is arranged in each of the first containing cavity (32) and the second containing cavity (33), and optical communication components are arranged in the butterfly-shaped introducing units (4).
4. A twelve-cell butterfly drop cable according to claim 1 or claim 2 or claim 3, wherein: the butterfly-shaped introducing unit (4) is in a regular triangle shape, the butterfly-shaped introducing unit (4) is formed by a butterfly-shaped introducing unit sheath (41), a hanging wire sheath (42), a hanging wire (43), two connecting parts (45), at least one optical fiber (47) and two reinforcing parts (48), a V-shaped groove is formed above the butterfly-shaped introducing unit sheath (41), the two reinforcing parts (48) are respectively positioned in the butterfly-shaped introducing unit sheaths (41) on two sides of the V-shaped groove, a tearing opening (46) is formed at the bottom of the V-shaped groove, the optical fiber (47) is positioned in the butterfly-shaped introducing unit sheath (41) under the tearing opening (46), the hanging wire sheath (42) is positioned above the V-shaped groove, the hanging wire (43) is positioned in the hanging wire sheath (42), the hanging wire sheath (42) is connected with two side walls of the V-shaped groove respectively through the connecting parts (45), and the hanging wire sheath (42) and the butterfly-shaped introducing unit sheath (41) form a spacing groove (44).
5. A twelve-cell butterfly drop cable according to claim 4, wherein: the butterfly-shaped introducing unit sheath (41), the hanging wire sheath (42) and the connecting component (45) are integrally formed.
6. A twelve-cell butterfly drop cable according to claim 5, wherein: the side length of the butterfly-shaped introducing unit (4) is smaller than the side length of the corresponding first accommodating cavity (32) or second accommodating cavity (33), and is larger than half of the side length of the corresponding first accommodating cavity (32) or second accommodating cavity (33).
7. A twelve-cell butterfly drop cable according to claim 6, wherein: the butterfly-shaped introducing unit sheath (41), the suspension wire sheath (42) and the connecting component (45) are made of flame-retardant polyolefin.
8. A twelve-cell butterfly drop cable according to claim 7, wherein: a filling component (2) is arranged between two adjacent first cavities (32), and the filling component (2) is made of polypropylene.
9. A twelve-cell butterfly drop cable according to claim 8, wherein: the material of the outer protective layer (1) is high-density polyethylene or medium-density polyethylene or low-density polyethylene.
10. A twelve-cell butterfly drop cable according to claim 9, wherein: the material of the inner protective layer (3) is polybutylene terephthalate or modified polypropylene.
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| CN202410204827.8A CN117784341B (en) | 2024-02-26 | 2024-02-26 | Twelve-unit butterfly-shaped lead-in unit optical cable |
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