CN117784340A - Rectangular optical fiber ribbon cable and rectangular butterfly-shaped lead-in cable - Google Patents
Rectangular optical fiber ribbon cable and rectangular butterfly-shaped lead-in cable Download PDFInfo
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- CN117784340A CN117784340A CN202410204493.4A CN202410204493A CN117784340A CN 117784340 A CN117784340 A CN 117784340A CN 202410204493 A CN202410204493 A CN 202410204493A CN 117784340 A CN117784340 A CN 117784340A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 51
- 230000003287 optical effect Effects 0.000 claims abstract description 38
- 239000010410 layer Substances 0.000 claims description 164
- 239000011241 protective layer Substances 0.000 claims description 130
- 230000001681 protective effect Effects 0.000 claims description 32
- 230000002787 reinforcement Effects 0.000 claims description 19
- 239000000835 fiber Substances 0.000 claims description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- -1 polybutylene terephthalate Polymers 0.000 claims description 3
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 description 10
- 239000003351 stiffener Substances 0.000 description 8
- 238000004891 communication Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention belongs to the field of cables, and particularly relates to a rectangular optical fiber ribbon optical cable, which is provided with four loose tubes, wherein at least one optical fiber ribbon is arranged in each loose tube, and the rectangular optical fiber ribbon optical cable is characterized in that: the optical fiber cable is characterized by further comprising four protection components, wherein the four protection components are embedded in each other to form a closed protection layer, the protection layer forms four accommodating cavities, loose tubes are arranged in the four accommodating cavities, and at least one optical fiber cable is arranged in the loose tubes; the invention has the advantages of simple structure, convenient construction, good protection effect, low production cost, strong mechanical property and the like; the invention also discloses a rectangular butterfly-shaped lead-in optical cable.
Description
Technical Field
The invention belongs to the field of cables, and particularly relates to a rectangular optical fiber ribbon cable and a rectangular butterfly-shaped lead-in cable.
Background
The butterfly-shaped lead-in optical cable is used for the last kilometer of fiber to the home, and is widely applied to application environments such as intelligent buildings, digital communities, campus networks, local area networks and the like due to the advantages of small outer diameter, light weight, low cost, good flexibility and bending performance, convenient laying and the like.
The utility model discloses an improved butterfly-shaped optical cable like CN212570461U among the prior art, has outer sheath and four optical communication units, its characterized in that outer sheath comprises outer sheath main part, and outer sheath main part is "8" font, and outer sheath main part inside right side forms a first appearance chamber, and the left side forms a second appearance chamber, and outer sheath main part middle part stretches out a partition part to first appearance chamber and second appearance intracavity respectively, outer sheath main part end that first appearance chamber and second appearance chamber correspond sets up a first joint part respectively, and outer sheath main part outer wall middle part upper and lower surface is equipped with two first joint grooves that correspond with first joint part, two first joint parts clamp into two first joint grooves that correspond respectively, two optical communication units are located first appearance intracavity, and two other optical communication units are located the second appearance intracavity, partition part tip is (0) with the inner wall distance of first appearance chamber or second appearance chamber, optical communication unit's radius, optical communication unit comprises sleeve pipe and at least one optic fibre that is located the pine.
The prior art has the following defects: 1. the optical cable has poor protection capability; 2. the clamping structure of the extruded outer protective layer is easy to fall off.
Disclosure of Invention
In order to solve the problems, the invention aims to disclose a rectangular optical fiber ribbon optical cable and a rectangular butterfly-shaped lead-in optical cable, which are realized by adopting the following technical schemes.
A rectangular optical fiber ribbon cable is provided with four loose tubes, and each loose tube is internally provided with at least one optical fiber ribbon, and is characterized in that: the four protection components are formed by a first longitudinal protection layer, a first transverse protection layer, a second longitudinal protection layer, a third longitudinal protection layer, a second transverse protection layer, a third transverse protection layer, a fourth longitudinal protection layer and a fourth transverse protection layer, wherein the first longitudinal protection layer, the second longitudinal protection layer, the third longitudinal protection layer and the fourth longitudinal protection layer are parallel, the first transverse protection layer, the second transverse protection layer, the third transverse protection layer and the fourth transverse protection layer are parallel, the first longitudinal protection layer is perpendicular to the first transverse protection layer, the lower end of the first longitudinal protection layer is connected with the left end of the fourth transverse protection layer, the upper end of the first longitudinal protection layer is connected with the left end of the first transverse protection layer, the right end of the first transverse protection layer is connected with the upper end of the second longitudinal protection layer, the lower end of the second longitudinal protection layer is connected with the lower end of the third longitudinal protection layer, the right end of the third longitudinal protection layer is connected with the left end of the third longitudinal protection layer, the right end of the third longitudinal protection layer is connected with the upper end of the fourth longitudinal protection layer, a first longitudinal cavity, a second longitudinal cavity, a third longitudinal cavity, a fourth longitudinal cavity and a fourth longitudinal cavity are formed between the first longitudinal protection layer and the first longitudinal cavity and the fourth longitudinal protection layer;
the length of the third longitudinal sheath plus the thickness of the second transverse sheath plus the thickness of the third transverse sheath is less than the length of the fourth longitudinal sheath plus the thickness of the third transverse sheath, the length of the fourth longitudinal sheath plus the thickness of the third transverse sheath is less than the length of the first transverse sheath minus the thickness of the first longitudinal sheath minus the thickness of the second longitudinal sheath, the length of the third transverse sheath is less than the length of the first longitudinal sheath, the length of the fourth transverse sheath is less than the length of the third longitudinal sheath plus the thickness of the third transverse sheath, and the length of the first longitudinal sheath plus the thickness of the first transverse sheath is the same as the length of the first transverse sheath;
the fourth transverse protective layer of the previous protective component is embedded into the embedded groove of the next protective component along the clockwise direction, the third longitudinal protective layer, the third transverse protective layer and the fourth longitudinal protective layer of the next protective component are positioned in the first containing cavity of the previous protective component, and the loose tube is positioned in the second containing cavity.
The rectangular optical fiber ribbon cable described above is characterized in that: a central cavity is formed in the middle of the four protection components, a rectangular central reinforcing piece is arranged in the central cavity, and four side faces of the central reinforcing piece are respectively attached to the corresponding second transverse protection layers.
The rectangular optical fiber ribbon cable described above is characterized in that: the first longitudinal protective layer and the first transverse protective layer have the same thickness.
The rectangular optical fiber ribbon cable described above is characterized in that: the first longitudinal sheath of the preceding protective member is bonded to the third transverse sheath of the following protective member.
The rectangular optical fiber ribbon cable described above is characterized in that: the loose tube is made of polybutylene terephthalate.
The rectangular optical fiber ribbon cable described above is characterized in that: the optical fiber ribbon is formed by combining at least two optical fibers.
The utility model provides a rectangle butterfly-shaped introducing optical cable, has butterfly-shaped introducing unit, butterfly-shaped introducing unit comprises butterfly-shaped unit sheath, two parallel butterfly-shaped unit reinforcement and an optic fibre, and two butterfly-shaped unit reinforcement and an optic fibre are located butterfly-shaped unit sheath, and the optic fibre is located between two butterfly-shaped unit reinforcement, and the butterfly-shaped unit sheath outer wall of optic fibre both sides respectively forms a first tear, in the same cross-section, and the line of two first tear is perpendicular with the line of the axle center of two butterfly-shaped unit reinforcements, its characterized in that: the four protection components are formed by a first longitudinal protection layer, a first transverse protection layer, a second longitudinal protection layer, a second transverse protection layer and a fourth transverse protection layer, the first longitudinal protection layer, the second longitudinal protection layer and the left side face of the butterfly-shaped introducing unit are parallel, the first transverse protection layer, the second transverse protection layer and the fourth transverse protection layer are parallel, the first longitudinal protection layer is perpendicular to the first transverse protection layer, the lower end of the first longitudinal protection layer is connected with the left end of the fourth transverse protection layer, the upper end of the first longitudinal protection layer is connected with the left end of the first transverse protection layer, the right end of the first transverse protection layer is connected with the upper end of the second longitudinal protection layer, the lower end of the second longitudinal protection layer is connected with the left end of the second transverse protection layer, the right end of the second transverse protection layer is connected with the left lower end of the butterfly-shaped introducing unit, and an embedded groove is formed between the second longitudinal protection layer and the butterfly-shaped introducing unit, and a first containing cavity is formed between the first longitudinal protection layer, the first transverse protection layer, the second longitudinal protection layer and the fourth transverse protection layer;
the height of the butterfly-shaped introducing unit is smaller than the length of the first transverse protective layer minus the thickness of the first longitudinal protective layer and minus the thickness of the second longitudinal protective layer, the length of the butterfly-shaped introducing unit is smaller than the length of the first longitudinal protective layer, the length of the fourth transverse protective layer is smaller than the height of the butterfly-shaped introducing unit minus the thickness of the second transverse protective layer, and the length of the first longitudinal protective layer plus the thickness of the first transverse protective layer is the same as the length of the first transverse protective layer;
the fourth transverse protective layer of the previous protective component is embedded into the embedded groove of the next protective component along the clockwise direction, and the butterfly-shaped introducing unit of the next protective component is positioned in the first containing cavity of the previous protective component.
The above-mentioned rectangle butterfly-shaped introducing optical cable, its characterized in that: a central cavity is formed in the middle of the four protection components, a rectangular central reinforcing piece is arranged in the central cavity, and four side faces of the central reinforcing piece are respectively attached to the corresponding second transverse protection layers.
The above-mentioned rectangle butterfly-shaped introducing optical cable, its characterized in that: the first longitudinal protective layer and the first transverse protective layer have the same thickness.
The above-mentioned rectangle butterfly-shaped introducing optical cable, its characterized in that: and two sides of the joint of the second transverse protection layer and the butterfly-shaped introducing unit are respectively provided with a second tearing opening for rapidly separating the second transverse protection layer from the butterfly-shaped introducing unit.
The above-mentioned rectangle butterfly-shaped introducing optical cable, its characterized in that: an electrical unit is also provided in each of the embedded slots.
The invention has the following beneficial effects:
1. the protection part can be formed by extrusion molding in advance, and the later-stage optical cable can be formed by scarf joint under the cooling state, so that the protection part is convenient to replace when damaged, the protection part does not need to be like an outer sheath formed by extrusion molding of one time of a common optical cable, and when the outer sheath is damaged, peeling is performed, extrusion is performed again, so that materials are saved, and the cost is reduced.
2. The protection parts are mutually embedded, so that the optical cable can be taken out of the inner loose tube or butterfly-shaped leading-in unit without tools during construction and maintenance, and the construction and maintenance are convenient.
3. The square central reinforcing piece is arranged, so that stronger tensile property is provided for the optical cable, stronger lateral pressure resistance is provided for the optical cable, and the optical cable structure is prevented from being scattered due to deformation of the protective component when the optical cable is subjected to stronger pressure.
4. An electric unit is further arranged in the embedded groove, so that the optical cable can transmit light and electricity simultaneously, and when the electric unit needs to be taken out, the fourth transverse protective layer is pulled out of the embedded groove, so that construction is facilitated.
5. In the rectangular optical fiber ribbon cable, the protection components are mutually embedded to form four second accommodating cavities for accommodating loose tubes, and the loose tubes are mutually separated and are not contacted, so that the mutual extrusion influence between the loose tubes is avoided.
6. In a rectangular optical fiber ribbon cable, the outside of each loose tube is protected by a layer of protection component, so that stronger protection is provided for the optical fibers in the loose tube.
7. In the rectangular butterfly-shaped lead-in optical cable, the protection component and the butterfly-shaped lead-in unit are integrally formed, and the sections of the first longitudinal protective layer, the first transverse protective layer, the second longitudinal protective layer and the fourth transverse protective layer form a hook shape, so that the cable can be hung during construction, other tools are not needed, and the self-supporting effect can be achieved.
8. In the rectangular butterfly-shaped lead-in optical cable, two sides of the joint of the second transverse protective layer and the butterfly-shaped lead-in unit are respectively provided with a second tearing opening, when the protective component is removed from the second tearing opening, the GJXH-type butterfly-shaped cable with a common structure can be obtained, and the applicability is strong in all laying modes of the GJXH-type butterfly-shaped cable with the common structure.
9. In the rectangular butterfly-shaped introducing optical cable, the protection components are mutually embedded to form four first accommodating cavities, the butterfly-shaped introducing units are positioned in the first accommodating cavities and are mutually separated and not contacted, so that the mutual extrusion influence among the butterfly-shaped introducing units is avoided.
10. In the rectangular butterfly-shaped introducing optical cable, the outer part of each butterfly-shaped introducing unit is protected by a layer of protecting component, so that stronger protection is provided for the optical fibers in the butterfly-shaped introducing units.
Drawings
Fig. 1 is a schematic end view of embodiment 1.
Fig. 2 is a schematic view of the structure of the protective member of embodiment 1.
Fig. 3 is a schematic end view of embodiment 2.
Fig. 4 is a schematic end view of embodiment 3.
Fig. 5 is a schematic view showing the structure of a protective member of embodiment 3.
Fig. 6 is a schematic view of the structure of the protective member of embodiment 4.
Fig. 7 is a schematic end view of embodiment 5.
In the figure: 1. protection component, 2, loose tube, 3, fiber optic ribbon, 4, central cavity, 5, central reinforcement, 6, electrical unit, 11, first longitudinal sheath, 12, first transverse sheath, 13, second longitudinal sheath, 14, embedded groove, 15, third longitudinal sheath, 16, second transverse sheath, 17, third transverse sheath, 18, fourth longitudinal sheath, 19, fourth transverse sheath, 110, first cavity, 111, second cavity, 112, butterfly unit sheath, 113, butterfly unit reinforcement, 114, optical fiber, 115, first tear seam, 116, second tear seam.
Detailed Description
Example 1
Referring to fig. 1 and 2, a rectangular optical fiber ribbon cable has four loose tubes 2, and at least one optical fiber ribbon 3 is disposed in each loose tube 2, which is characterized in that: the protective component 1 is also provided with four protective components 1, the protective component 1 is composed of a first longitudinal protective layer 11, a first transverse protective layer 12, a second longitudinal protective layer 13, a third longitudinal protective layer 15, a second transverse protective layer 16, a third transverse protective layer 17, a fourth longitudinal protective layer 18 and a fourth transverse protective layer 19, the first longitudinal protective layer 11, the second longitudinal protective layer 13, the third longitudinal protective layer 15 and the fourth longitudinal protective layer 18 are parallel, the first transverse protective layer 12, the second transverse protective layer 16, the third transverse protective layer 17 and the fourth transverse protective layer 19 are parallel, the first longitudinal protective layer 11 is vertical to the first transverse protective layer 12, the lower end of the first longitudinal protective layer 11 is connected with the left end of the fourth transverse protective layer 19, the upper end of the first longitudinal protective layer 11 is connected with the left end of the first transverse protective layer 12, the right end of the first transverse sheath 12 is connected with the upper end of the second longitudinal sheath 13, the lower end of the second longitudinal sheath 13 is connected with the left end of the second transverse sheath 16, the right end of the second transverse sheath 16 is connected with the lower end of the third longitudinal sheath 15, the lower end of the third longitudinal sheath 15 is connected with the left end of the third transverse sheath 17, the right end of the third transverse sheath 17 is connected with the upper end of the fourth longitudinal sheath 18, an embedded groove 14 is formed between the second longitudinal sheath 13 and the third longitudinal sheath 15, a second containing cavity 111 is formed among the third longitudinal sheath 15, the third transverse sheath 17 and the fourth longitudinal sheath 18, and a first containing cavity 110 is formed among the first longitudinal sheath 11, the first transverse sheath 12, the second longitudinal sheath 13 and the fourth transverse sheath 19;
as shown in fig. 1, the length of the third longitudinal sheath 15 plus the thickness of the second transverse sheath 16 plus the thickness of the third transverse sheath 17 is less than the length of the fourth longitudinal sheath 18 plus the thickness of the third transverse sheath 17, the length of the fourth longitudinal sheath 18 plus the thickness of the third transverse sheath 17 is less than the length of the first transverse sheath 12 minus the thickness of the first longitudinal sheath 11 plus the thickness of the second longitudinal sheath 13, the length of the third transverse sheath 17 is less than the length of the first longitudinal sheath 11, the length of the fourth transverse sheath 19 is less than the length of the third longitudinal sheath 15 plus the thickness of the third transverse sheath 17, the length of the first longitudinal sheath 11 plus the thickness of the first transverse sheath 12 is the same as the length of the first transverse sheath 12;
as shown in fig. 2, the first longitudinal sheath 11 and the first transverse sheath 12 have the same thickness;
as shown in fig. 1 and 2, the fourth transverse sheath 19 of the previous protection component 1 is embedded in the embedded groove 14 of the next protection component 1 in the clockwise direction, the first longitudinal sheath 11 of the previous protection component 1 is attached to the third transverse sheath 17 of the next protection component 1, the third longitudinal sheath 15, the third transverse sheath 17 and the fourth longitudinal sheath 18 of the next protection component 1 are located in the first accommodating cavity 110 of the previous protection component 1, a central cavity 4 is formed in the middle of the four protection components 1, and the loose tube 2 is located in the second accommodating cavity 111.
Example 2
Referring to fig. 2 and 3, a rectangular optical fiber ribbon cable has four loose tubes 2, and at least one optical fiber ribbon 3 is disposed in each loose tube 2, which is characterized in that: the protective component 1 is also provided with four protective components 1, the protective component 1 is composed of a first longitudinal protective layer 11, a first transverse protective layer 12, a second longitudinal protective layer 13, a third longitudinal protective layer 15, a second transverse protective layer 16, a third transverse protective layer 17, a fourth longitudinal protective layer 18 and a fourth transverse protective layer 19, the first longitudinal protective layer 11, the second longitudinal protective layer 13, the third longitudinal protective layer 15 and the fourth longitudinal protective layer 18 are parallel, the first transverse protective layer 12, the second transverse protective layer 16, the third transverse protective layer 17 and the fourth transverse protective layer 19 are parallel, the first longitudinal protective layer 11 is vertical to the first transverse protective layer 12, the lower end of the first longitudinal protective layer 11 is connected with the left end of the fourth transverse protective layer 19, the upper end of the first longitudinal protective layer 11 is connected with the left end of the first transverse protective layer 12, the right end of the first transverse sheath 12 is connected with the upper end of the second longitudinal sheath 13, the lower end of the second longitudinal sheath 13 is connected with the left end of the second transverse sheath 16, the right end of the second transverse sheath 16 is connected with the lower end of the third longitudinal sheath 15, the lower end of the third longitudinal sheath 15 is connected with the left end of the third transverse sheath 17, the right end of the third transverse sheath 17 is connected with the upper end of the fourth longitudinal sheath 18, an embedded groove 14 is formed between the second longitudinal sheath 13 and the third longitudinal sheath 15, a second containing cavity 111 is formed among the third longitudinal sheath 15, the third transverse sheath 17 and the fourth longitudinal sheath 18, and a first containing cavity 110 is formed among the first longitudinal sheath 11, the first transverse sheath 12, the second longitudinal sheath 13 and the fourth transverse sheath 19;
as shown in fig. 2, the length of the third longitudinal sheath 15 plus the thickness of the second transverse sheath 16 plus the thickness of the third transverse sheath 17 is less than the length of the fourth longitudinal sheath 18 plus the thickness of the third transverse sheath 17, the length of the fourth longitudinal sheath 18 plus the thickness of the third transverse sheath 17 is less than the length of the first transverse sheath 12 minus the thickness of the first longitudinal sheath 11 plus the thickness of the second longitudinal sheath 13, the length of the third transverse sheath 17 is less than the length of the first longitudinal sheath 11, and the length of the fourth transverse sheath 19 is less than the length of the third longitudinal sheath 15 plus the thickness of the third transverse sheath 17; the length of the first longitudinal sheath 11 plus the thickness of the first transverse sheath 12 is the same as the length of the first transverse sheath 12;
as shown in fig. 3, the first longitudinal sheath 11 and the first transverse sheath 12 have the same thickness;
referring to fig. 2 and 3, and referring to fig. 1, the fourth transverse sheath 19 of the previous protection member 1 is inserted into the insertion groove 14 of the next protection member 1 in the clockwise direction, the first longitudinal sheath 11 of the previous protection member 1 is attached to the third transverse sheath 17 of the next protection member 1, the third longitudinal sheath 15, the third transverse sheath 17 and the fourth longitudinal sheath 18 of the next protection member 1 are located in the first cavity 110 of the previous protection member 1, a central cavity 4 is formed between the four protection members 1, a rectangular central reinforcement 5 is disposed in the central cavity 4, four sides of the central reinforcement 5 are attached to the corresponding second transverse sheaths 16, and the loose tube 2 is located in the second cavity 111.
The material of the loose tube 2 described in example 1 and example 2 is polybutylene terephthalate.
The optical fiber ribbon 3 described in example 1 and example 2 is formed by splicing at least two optical fibers 114.
Example 3
As shown in fig. 4 and fig. 5, a rectangular butterfly-shaped drop cable has a butterfly-shaped drop unit, the butterfly-shaped drop unit is composed of a butterfly-shaped unit protection layer 112, two parallel butterfly-shaped unit reinforcing members 113 and an optical fiber 114, the two butterfly-shaped unit reinforcing members 113 and the optical fiber 114 are located in the butterfly-shaped unit protection layer 112, the optical fiber 114 is located between the two butterfly-shaped unit reinforcing members 113, a first tearing opening 115 is formed on the outer wall of the butterfly-shaped unit protection layer 112 at two sides of the optical fiber 114 respectively, and in the same section, the connecting line of the two first tearing openings 115 is perpendicular to the connecting line of the axes of the two butterfly-shaped unit reinforcing members 113, and the rectangular butterfly-shaped drop cable is characterized in that: the four protection components 1 are further arranged, the protection components 1 are composed of a first longitudinal protection layer 11, a first transverse protection layer 12, a second longitudinal protection layer 13, a second transverse protection layer 16 and a fourth transverse protection layer 19, the first longitudinal protection layer 11, the second longitudinal protection layer 13 and the left side surface of the butterfly-shaped introducing unit are parallel, the first transverse protection layer 12, the second transverse protection layer 16 and the fourth transverse protection layer 19 are parallel, the first longitudinal protection layer 11 is perpendicular to the first transverse protection layer 12, the lower end of the first longitudinal protection layer 11 is connected with the left end of the fourth transverse protection layer 19, the upper end of the first longitudinal protection layer 11 is connected with the left end of the first transverse protection layer 12, the right end of the first transverse protection layer 12 is connected with the upper end of the second longitudinal protection layer 13, the lower end of the second longitudinal protection layer 13 is connected with the left end of the second transverse protection layer 16, the right end of the second transverse protection layer 16 is connected with the lower left side end of the butterfly-shaped introducing unit, an embedded groove 14 is formed between the second longitudinal protection layer 13 and the butterfly-shaped introducing unit, and a first cavity 110 is formed between the first longitudinal protection layer 11, the first transverse protection layer 12, the second longitudinal protection layer 13 and the fourth transverse protection layer 19;
as shown in fig. 4, the height of the butterfly introducing unit is smaller than the length of the first lateral sheath 12 minus the thickness of the first longitudinal sheath 11 minus the thickness of the second longitudinal sheath 13, the length of the butterfly introducing unit is smaller than the length of the first longitudinal sheath 11, the length of the fourth lateral sheath 19 is smaller than the height of the butterfly introducing unit minus the thickness of the second lateral sheath 16, the length of the first longitudinal sheath 11 plus the thickness of the first lateral sheath 12 is the same as the length of the first lateral sheath 12;
as shown in fig. 5, the first longitudinal sheath 11 and the first transverse sheath 12 have the same thickness;
referring to fig. 4 and 5, and referring to fig. 1, the fourth transverse sheath 19 of the previous protection member 1 is inserted into the insertion groove 14 of the next protection member 1 in the clockwise direction, the butterfly-shaped introduction unit of the next protection member 1 is located in the first cavity 110 of the previous protection member 1, a central cavity 4 is formed in the middle of the four protection members 1, a rectangular central reinforcement 5 is disposed in the central cavity 4, and four sides of the central reinforcement 5 are respectively attached to the corresponding second transverse sheath 16.
Example 4
Referring to fig. 6 and referring to fig. 4, a rectangular butterfly-shaped drop cable has a butterfly-shaped drop unit, the butterfly-shaped drop unit is composed of a butterfly-shaped unit sheath 112, two parallel butterfly-shaped unit stiffeners 113 and an optical fiber 114, the two butterfly-shaped unit stiffeners 113 and the optical fiber 114 are located in the butterfly-shaped unit sheath 112, the optical fiber 114 is located between the two butterfly-shaped unit stiffeners 113, the outer walls of the butterfly-shaped unit sheath 112 on both sides of the optical fiber 114 respectively form a first tearing opening 115, and in the same section, the connecting line of the two first tearing openings 115 is perpendicular to the connecting line of the axes of the two butterfly-shaped unit stiffeners 113, and the rectangular butterfly-shaped drop cable is characterized in that: the protective component 1 is also provided with four protective components 1, the protective component 1 is composed of a first longitudinal protective layer 11, a first transverse protective layer 12, a second longitudinal protective layer 13, a second transverse protective layer 16 and a fourth transverse protective layer 19, the first longitudinal protective layer 11, the second longitudinal protective layer 13 and the left side surface of the butterfly-shaped introducing unit are parallel, the first transverse protective layer 12, the second transverse protective layer 16 and the fourth transverse protective layer 19 are parallel, the first longitudinal protective layer 11 is vertical to the first transverse protective layer 12, the lower end of the first longitudinal protective layer 11 is connected with the left end of the fourth transverse protective layer 19, the upper end of the first longitudinal protective layer 11 is connected with the left end of the first transverse protective layer 12, the right end of the first transverse sheath 12 is connected with the upper end of the second longitudinal sheath 13, the lower end of the second longitudinal sheath 13 is connected with the left end of the second transverse sheath 16, the right end of the second transverse sheath 16 is connected with the left lower end of the butterfly-shaped introducing unit, two sides of the connecting part of the second transverse sheath 16 and the butterfly-shaped introducing unit are respectively provided with a second tearing opening 116 for quickly separating the second transverse sheath 16 from the butterfly-shaped introducing unit, an embedded groove 14 is formed between the second longitudinal sheath 13 and the butterfly-shaped introducing unit, and a first accommodating cavity 110 is formed among the first longitudinal sheath 11, the first transverse sheath 12, the second longitudinal sheath 13 and the fourth transverse sheath 19;
as shown in fig. 4, the height of the butterfly introducing unit is smaller than the length of the first lateral sheath 12 minus the thickness of the first longitudinal sheath 11 minus the thickness of the second longitudinal sheath 13, the length of the butterfly introducing unit is smaller than the length of the first longitudinal sheath 11, the length of the fourth lateral sheath 19 is smaller than the height of the butterfly introducing unit minus the thickness of the second lateral sheath 16, the length of the first longitudinal sheath 11 plus the thickness of the first lateral sheath 12 is the same as the length of the first lateral sheath 12;
as shown in fig. 6, the first longitudinal sheath 11 and the first transverse sheath 12 have the same thickness;
referring to fig. 4 and 6, and referring to fig. 1, the fourth transverse sheath 19 of the previous protection member 1 is inserted into the insertion groove 14 of the next protection member 1 in the clockwise direction, the butterfly-shaped introduction unit of the next protection member 1 is located in the first cavity 110 of the previous protection member 1, a central cavity 4 is formed in the middle of the four protection members 1, a rectangular central reinforcement 5 is disposed in the central cavity 4, and four sides of the central reinforcement 5 are respectively attached to the corresponding second transverse sheath 16.
Example 5
Referring to fig. 4 and 7, a rectangular butterfly drop cable has a butterfly drop unit, where the butterfly drop unit is composed of a butterfly unit sheath 112, two parallel butterfly unit stiffeners 113 and an optical fiber 114, the two butterfly unit stiffeners 113 and the optical fiber 114 are located in the butterfly unit sheath 112, the optical fiber 114 is located between the two butterfly unit stiffeners 113, the outer walls of the butterfly unit sheaths 112 on two sides of the optical fiber 114 form first tear slits 115 respectively, and in the same section, the connection line of the two first tear slits 115 is perpendicular to the connection line of the axes of the two butterfly unit stiffeners 113, and the rectangular butterfly drop cable is characterized in that: the four protection components 1 are further arranged, the protection components 1 are composed of a first longitudinal protection layer 11, a first transverse protection layer 12, a second longitudinal protection layer 13, a second transverse protection layer 16 and a fourth transverse protection layer 19, the first longitudinal protection layer 11, the second longitudinal protection layer 13 and the left side surface of the butterfly-shaped introducing unit are parallel, the first transverse protection layer 12, the second transverse protection layer 16 and the fourth transverse protection layer 19 are parallel, the first longitudinal protection layer 11 is perpendicular to the first transverse protection layer 12, the lower end of the first longitudinal protection layer 11 is connected with the left end of the fourth transverse protection layer 19, the upper end of the first longitudinal protection layer 11 is connected with the left end of the first transverse protection layer 12, the right end of the first transverse protection layer 12 is connected with the upper end of the second longitudinal protection layer 13, the lower end of the second longitudinal protection layer 13 is connected with the left end of the second transverse protection layer 16, the right end of the second transverse protection layer 16 is connected with the lower left side end of the butterfly-shaped introducing unit, an embedded groove 14 is formed between the second longitudinal protection layer 13 and the butterfly-shaped introducing unit, and a first cavity 110 is formed between the first longitudinal protection layer 11, the first transverse protection layer 12, the second longitudinal protection layer 13 and the fourth transverse protection layer 19;
as shown in fig. 4, the height of the butterfly introducing unit is smaller than the length of the first lateral sheath 12 minus the thickness of the first longitudinal sheath 11 minus the thickness of the second longitudinal sheath 13, the length of the butterfly introducing unit is smaller than the length of the first longitudinal sheath 11, the length of the fourth lateral sheath 19 is smaller than the height of the butterfly introducing unit minus the thickness of the second lateral sheath 16, the length of the first longitudinal sheath 11 plus the thickness of the first lateral sheath 12 is the same as the length of the first lateral sheath 12;
as shown in fig. 7, the first longitudinal sheath 11 and the first transverse sheath 12 have the same thickness;
referring to fig. 4 and 7, and referring to fig. 1, the fourth transverse sheath 19 of the previous protection member 1 is embedded in the embedded groove 14 of the next protection member 1 in the clockwise direction, an electric unit 6 is further provided in each embedded groove 14, the butterfly-shaped introducing unit of the next protection member 1 is located in the first accommodating cavity 110 of the previous protection member 1, a central cavity 4 is formed in the middle of the four protection members 1, a rectangular central reinforcement 5 is provided in the central cavity 4, and four sides of the central reinforcement 5 are respectively attached to the corresponding second transverse sheath 16.
In embodiments 3 to 5, the optical fiber 114 is a multimode optical fiber or a single mode optical fiber.
The invention has the following beneficial effects:
1. the protection part 1 can be formed by extrusion molding in advance, and the later-stage optical cable can be formed by scarf joint under the cooling state, so that the protection part is convenient to replace when damaged, the protection part does not need to be like an outer sheath formed by extrusion molding of one time of a common optical cable, and when the outer sheath is damaged, peeling is performed for extrusion molding again, so that materials are saved, and the cost is reduced.
2. The protection components 1 are mutually embedded, so that the optical cable can be taken out of the inner loose tube 2 or the butterfly-shaped introducing unit without tools during construction and maintenance, and the construction and maintenance are convenient.
3. The square central reinforcement 5 provides stronger tensile properties for the cable and also provides stronger lateral pressure resistance for the cable, and also prevents the protective member 1 from deforming to scatter the cable structure when subjected to stronger pressure.
4. An electric unit 6 is further arranged in the embedded groove 14, so that the optical cable can transmit the light and the electricity simultaneously, and when the electric unit 6 needs to be taken out, the fourth transverse protective layer 19 is pulled out of the embedded groove 14, thereby facilitating construction.
5. In the rectangular optical fiber ribbon cable, the protection components 1 are mutually embedded to form four second accommodating cavities 111 for accommodating the loose tubes 2, and the loose tubes 2 are mutually separated and are not contacted, so that the mutual extrusion influence between the loose tubes 2 is avoided.
6. In a rectangular ribbon cable, the exterior of each loose tube 2 is protected by a layer of protection elements 1, providing greater protection for the optical fibers 114 within the loose tube 2.
7. In the rectangular butterfly-shaped lead-in optical cable, the protection component 1 and the butterfly-shaped lead-in unit are integrally formed, and the sections of the first longitudinal protection layer 11, the first transverse protection layer 12, the second longitudinal protection layer 13 and the fourth transverse protection layer 19 form a hook shape, so that the cable can be used for hanging a rope during construction, and can achieve the self-supporting effect without other tools.
8. In the rectangular butterfly-shaped lead-in optical cable, two sides of the joint of the second transverse protection layer 16 and the butterfly-shaped lead-in unit are respectively provided with a second tearing opening 116, when the protection component 1 is removed from the second tearing opening 116, the GJXH-type butterfly cable with a common structure can be obtained, and the applicability is strong in all laying modes of the GJXH-type butterfly cable with the common structure.
9. In the rectangular butterfly-shaped introducing optical cable, the protection components 1 are mutually embedded to form four first accommodating cavities 110, the butterfly-shaped introducing units are positioned in the first accommodating cavities 110 and are mutually separated and not contacted, so that the mutual extrusion influence among the butterfly-shaped introducing units is avoided.
10. In a rectangular butterfly drop cable, the exterior of each butterfly drop unit is protected by a layer of protection elements 1, providing greater protection for the optical fibers 114 within the butterfly drop unit.
The above-described embodiments are only preferred embodiments of the present invention, and should not be construed as limiting the present invention. The protection scope of the present invention is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this invention are also within the scope of the invention.
Claims (10)
1. A rectangular optical fiber ribbon cable, which is provided with four loose tubes (2), wherein each loose tube (2) is internally provided with at least one optical fiber ribbon (3), and is characterized in that: the protective component (1) is further provided with four protective components (1), the protective components are composed of a first longitudinal protective layer (11), a first transverse protective layer (12), a second longitudinal protective layer (13), a third longitudinal protective layer (15), a second transverse protective layer (16), a third transverse protective layer (17), a fourth longitudinal protective layer (18) and a fourth transverse protective layer (19), the first longitudinal protective layer (11), the second longitudinal protective layer (13), the third longitudinal protective layer (15) and the fourth longitudinal protective layer (18) are parallel, the first transverse protective layer (12), the second transverse protective layer (16), the third transverse protective layer (17) and the fourth transverse protective layer (19) are parallel, the first longitudinal protective layer (11) is perpendicular to the first transverse protective layer (12), the lower end of the first longitudinal protective layer (11) is connected with the left end of the fourth transverse protective layer (19), the right end of the first longitudinal protective layer (11) is connected with the upper end of the second longitudinal protective layer (13), the lower end of the second longitudinal protective layer (13) is connected with the left end of the third longitudinal protective layer (17), the lower end of the second longitudinal protective layer (13) is connected with the right end of the third longitudinal protective layer (17) is connected with the right end of the third longitudinal protective layer (16), an embedded groove (14) is formed between the second longitudinal protective layer (13) and the third longitudinal protective layer (15), a second containing cavity (111) is formed among the third longitudinal protective layer (15), the third transverse protective layer (17) and the fourth longitudinal protective layer (18), and a first containing cavity (110) is formed among the first longitudinal protective layer (11), the first transverse protective layer (12), the second longitudinal protective layer (13) and the fourth transverse protective layer (19);
the length of the third longitudinal sheath (15) plus the thickness of the second transverse sheath (16) plus the thickness of the third transverse sheath (17) is smaller than the length of the fourth longitudinal sheath (18) plus the thickness of the third transverse sheath (17), the length of the first transverse sheath (12) minus the thickness of the first longitudinal sheath (11) minus the thickness of the second longitudinal sheath (13), the length of the third transverse sheath (17) is smaller than the length of the first longitudinal sheath (11), the length of the fourth transverse sheath (19) is smaller than the length of the third longitudinal sheath (15) plus the thickness of the third transverse sheath (17), and the length of the first longitudinal sheath (11) plus the thickness of the first transverse sheath (12) is the same as the length of the first transverse sheath (12);
in the clockwise direction, the fourth transverse protective layer (19) of the previous protective component (1) is embedded into the embedded groove (14) of the next protective component (1), the third longitudinal protective layer (15), the third transverse protective layer (17) and the fourth longitudinal protective layer (18) of the next protective component (1) are positioned in the first containing cavity (110) of the previous protective component (1), and the loose tube (2) is positioned in the second containing cavity (111).
2. A rectangular fiber optic ribbon cable as claimed in claim 1, wherein: a central cavity (4) is formed in the middle of the four protection components (1), a rectangular central reinforcing piece (5) is arranged in the central cavity (4), and four side faces of the central reinforcing piece (5) are respectively attached to the corresponding second transverse protection layers (16).
3. A rectangular fiber optic ribbon cable as claimed in claim 2, wherein: the first longitudinal protective layer (11) and the first transverse protective layer (12) have the same thickness.
4. A rectangular fiber optic ribbon cable according to claim 3, wherein: the loose tube (2) is made of polybutylene terephthalate.
5. A rectangular fiber optic ribbon cable as claimed in claim 4, wherein: the optical fiber ribbon (3) is formed by combining at least two optical fibers (114).
6. The utility model provides a rectangle butterfly-shaped introducing optical cable, has butterfly-shaped introducing unit, butterfly-shaped introducing unit comprises butterfly-shaped unit sheath (112), two parallel butterfly-shaped unit reinforcement (113) and an optic fibre (114), two butterfly-shaped unit reinforcement (113) and an optic fibre (114) are located butterfly-shaped unit sheath (112), optic fibre (114) are located between two butterfly-shaped unit reinforcement (113), butterfly-shaped unit sheath (112) outer wall of optic fibre (114) both sides respectively forms one and tears split (115), in the same cross-section, the line of two first split (115) is perpendicular with the line of the axle center of two butterfly-shaped unit reinforcement (113), its characterized in that: the butterfly-shaped solar cell is characterized by further comprising four protection components (1), wherein each protection component (1) is composed of a first longitudinal protection layer (11), a first transverse protection layer (12), a second longitudinal protection layer (13), a second transverse protection layer (16) and a fourth transverse protection layer (19), the first longitudinal protection layer (11), the second longitudinal protection layer (13) and the left side face of the butterfly-shaped introducing unit are parallel, the first transverse protection layer (12), the second transverse protection layer (16) and the fourth transverse protection layer (19) are parallel, the first longitudinal protection layer (11) is perpendicular to the first transverse protection layer (12), the lower end of the first longitudinal protection layer (11) is connected with the left end of the fourth transverse protection layer (19), the upper end of the first longitudinal protection layer (11) is connected with the left end of the first transverse protection layer (12), the right end of the first transverse protection layer (12) is connected with the upper end of the second longitudinal protection layer (13), the lower end of the second longitudinal protection layer (13) is connected with the left side face of the second transverse protection layer (16), the right end of the second transverse protection layer (16) is connected with the lower end of the left side face of the butterfly-shaped introducing unit, and the first longitudinal protection layer (13) and the first transverse protection layer (13) are embedded between the first longitudinal protection layer (13) and the first transverse protection layer (110) and the fourth transverse protection layer (19) are formed;
the height of the butterfly-shaped introducing unit is smaller than the length of the first transverse protection layer (12) minus the thickness of the first longitudinal protection layer (11) and minus the thickness of the second longitudinal protection layer (13), the length of the butterfly-shaped introducing unit is smaller than the length of the first longitudinal protection layer (11), the length of the fourth transverse protection layer (19) is smaller than the height of the butterfly-shaped introducing unit minus the thickness of the second transverse protection layer (16), and the length of the first longitudinal protection layer (11) plus the thickness of the first transverse protection layer (12) is the same as the length of the first transverse protection layer (12);
the fourth transverse sheath (19) of the previous protection component (1) is embedded in the embedded groove (14) of the next protection component (1) along the clockwise direction, and the butterfly-shaped introducing unit of the next protection component (1) is positioned in the first accommodating cavity (110) of the previous protection component (1).
7. A rectangular butterfly drop cable according to claim 6 wherein: a central cavity (4) is formed in the middle of the four protection components (1), a rectangular central reinforcing piece (5) is arranged in the central cavity (4), and four side faces of the central reinforcing piece (5) are respectively attached to the corresponding second transverse protection layers (16).
8. A rectangular butterfly drop cable according to claim 7 wherein: the first longitudinal protective layer (11) and the first transverse protective layer (12) have the same thickness.
9. A rectangular butterfly drop cable according to claim 8 wherein: two sides of the connection part of the second transverse protection layer (16) and the butterfly-shaped introducing unit are respectively provided with a second tearing opening (116).
10. A rectangular butterfly drop cable according to claim 9 wherein: an electrical unit (6) is also provided in each of the insertion grooves (14).
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| CN202410204493.4A CN117784340B (en) | 2024-02-24 | 2024-02-24 | Rectangular optical fiber ribbon cable and rectangular butterfly-shaped lead-in cable |
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| CN117784340B CN117784340B (en) | 2024-04-30 |
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| JPH0763962A (en) * | 1993-08-25 | 1995-03-10 | Tokyo Electric Power Co Inc:The | Optical fiber cable |
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| CN117784340B (en) | 2024-04-30 |
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