CN116594131A - Butterfly-shaped lead-in optical cable - Google Patents
Butterfly-shaped lead-in optical cable Download PDFInfo
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- CN116594131A CN116594131A CN202310863260.0A CN202310863260A CN116594131A CN 116594131 A CN116594131 A CN 116594131A CN 202310863260 A CN202310863260 A CN 202310863260A CN 116594131 A CN116594131 A CN 116594131A
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- 230000003287 optical effect Effects 0.000 title abstract description 55
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 228
- 230000001681 protective effect Effects 0.000 claims abstract description 24
- 239000011241 protective layer Substances 0.000 claims abstract description 14
- 230000008054 signal transmission Effects 0.000 claims abstract description 12
- 230000002787 reinforcement Effects 0.000 claims description 82
- 239000013307 optical fiber Substances 0.000 claims description 57
- 239000000463 material Substances 0.000 claims description 9
- 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 5
- 239000003063 flame retardant Substances 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 238000002955 isolation Methods 0.000 description 42
- 230000004308 accommodation Effects 0.000 description 16
- 238000003780 insertion Methods 0.000 description 14
- 230000037431 insertion Effects 0.000 description 14
- 239000010410 layer Substances 0.000 description 14
- 239000004020 conductor Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4403—Optical cables with ribbon structure
- G02B6/4404—Multi-podded
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4407—Optical cables with internal fluted support member
- G02B6/4409—Optical cables with internal fluted support member for ribbons
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/441—Optical cables built up from sub-bundles
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
- G02B6/4433—Double reinforcement laying in straight line with optical transmission element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention belongs to the technical field of optical cables, and particularly relates to a butterfly-shaped lead-in optical cable, which is provided with an outer protective layer and is characterized in that: the outer protective layer is internally provided with a first integrally formed reinforcing unit which is I-shaped, two sides of the first reinforcing unit are provided with inserting grooves, and a protective component is respectively inserted into the two inserting grooves; the protection component is provided with a protection component main body, the right side of the protection component main body is fixedly provided with a plug-in component, the right side walls of the protection component main body above and below the plug-in component respectively form a first limiting surface, the plug-in component is parallelly provided with a plurality of first containing grooves with openings to the right from top to bottom, at least one signal transmission component is arranged in each first containing groove, and the first limiting surfaces of the protection components at two sides are attached to the side walls of the first reinforcing unit; the invention has the advantages of simple structure, small attenuation, convenient construction, good tensile and compressive properties, separable protection units, photoelectric simultaneous transmission, good heat insulation effect and the like.
Description
Technical Field
The invention belongs to the technical field of optical cables, and particularly relates to a butterfly-shaped lead-in optical cable.
Background
The butterfly-shaped optical cable is a common household optical cable and plays a unique role in constructing networks such as intelligent buildings, digital communities, campus networks, local area networks and the like.
In the prior art, as in CN215641973U, an armored butterfly-shaped lead-in optical cable is disclosed, which is characterized by comprising a first sheath, optical fiber units, reinforcing members, a water-resistant layer, an armor layer and a second sheath, wherein the first sheath is a butterfly-shaped sheath, a plurality of optical fiber units are arranged in the center of the butterfly-shaped sheath, and two reinforcing members are respectively arranged at the left end and the right end of the butterfly-shaped sheath; the waterproof layer, the armor layer and the second sheath are sequentially arranged on the periphery of the first sheath from inside to outside; bubbles are distributed in the first sheath and the second sheath; the optical cable of introducing still includes the mount, the mount is I shape structure, two the mount is located respectively the upper and lower side of first sheath, just the upper and lower end of mount respectively with the waist of first sheath and the internal surface contact of water-blocking layer.
In the prior art, tensile force is provided by the reinforcing piece in the butterfly-shaped sheath, the upper side and the lower side of the butterfly-shaped unit have no tensile capacity, and the optical cable is relatively uneven in stress; the optical cable has poor pressure resistance and cannot maintain the appearance when stressed; when the optical cable is constructed, the first sheath, the waterproof layer, the armor layer, the second sheath and the like are required to be stripped, so that the construction is inconvenient; peeling the first sheath, the water-resistant layer and the armor layer requires to damage the first sheath, the water-resistant layer and the armor layer; the butterfly-shaped sheath is of a tight sleeve structure, and the attenuation of the optical fiber is large.
Disclosure of Invention
In order to solve the problems, the invention aims to disclose a butterfly-shaped lead-in optical cable, which is realized by adopting the following technical scheme.
A butterfly drop cable having an outer jacket, characterized by: the outer protective layer is internally provided with a first integrally formed reinforcing unit, the first reinforcing unit is composed of a first transverse reinforcing part positioned above, a second transverse reinforcing part positioned below and a longitudinal reinforcing part positioned between the first transverse reinforcing part and the second transverse reinforcing part, the first reinforcing unit is I-shaped, the longitudinal reinforcing part, the first transverse reinforcing part and the second transverse reinforcing part on the left side of the longitudinal reinforcing part form a first inserting groove, the longitudinal reinforcing part, the first transverse reinforcing part and the second transverse reinforcing part on the right side of the longitudinal reinforcing part form a second inserting groove, and the first inserting groove and the second inserting groove are respectively inserted with a protecting part;
the protection part is provided with a protection part main body, a second arc-shaped surface is formed on the left side wall of the protection part main body, an inserting part is fixedly arranged on the right side of the protection part main body, a first limiting surface is formed on the right side wall of the protection part main body above the inserting part, a first limiting surface is also formed on the right side wall of the protection part main body below the inserting part, a plurality of first containing grooves with openings right are formed in parallel from top to bottom in the inserting part, at least one signal transmission part is arranged in the first containing groove, the first limiting surface on the upper side of the inserting part of the left side protection part is attached to the left side wall of the first transverse reinforcing part, the first limiting surface on the lower side of the inserting part of the left side protection part is attached to the left side wall of the second transverse reinforcing part, and the first limiting surface on the upper side of the inserting part of the right side protection part is attached to the right side wall of the first transverse reinforcing part.
The butterfly-shaped lead-in optical cable described above is characterized in that: the distance from the first limiting surface to the opening of the corresponding first accommodating groove is greater than the depth of the first accommodating groove.
The butterfly-shaped lead-in optical cable described above is characterized in that: the upper parts of the left side wall and the right side wall of the first transverse reinforcing component are respectively fixedly provided with an elastic limiting component with the outer ends bent downwards in an arc mode, the lower parts of the left side wall and the right side wall of the second transverse reinforcing component are respectively fixedly provided with an elastic limiting component with the outer ends bent upwards in an arc mode, the upper part and the lower part of the second arc surface are respectively provided with a first arc surface which is concentric with the second arc surface and has a radius smaller than that of the second arc surface, the right end face of the first arc surface and the corresponding first limiting surface are located on the same plane, the sum of the radians of the two first arc surfaces is smaller than that of the second arc surface, and the first arc surface is attached to the inner side wall of the corresponding elastic limiting component.
The butterfly-shaped lead-in optical cable described above is characterized in that: a second inclined plane is arranged between the inner wall of the elastic limiting component on the left side of the first transverse reinforcing component and the left side wall of the first transverse reinforcing component, a second inclined plane is also arranged between the inner wall of the elastic limiting component on the left side of the second transverse reinforcing component and the left side wall of the second transverse reinforcing component, a second inclined plane is arranged between the inner wall of the elastic limiting component on the right side of the first transverse reinforcing component and the right side wall of the first transverse reinforcing component, a second inclined plane is also arranged between the inner wall of the elastic limiting component on the right side of the second transverse reinforcing component and the right side wall of the second transverse reinforcing component, the distance between the left ends of the two second inclined planes on the left side is larger than the distance between the right ends of the two second inclined planes on the right side, and a first inclined plane which is attached to the corresponding second inclined plane is arranged between the first limiting surface and the corresponding first arc-shaped surface.
The butterfly-shaped lead-in optical cable described above is characterized in that: the signal transmission component is an optical fiber or an optical fiber ribbon or an electrical unit.
The butterfly-shaped lead-in optical cable described above is characterized in that: the signal transmission component in the first accommodation groove of the left protection component is an optical fiber or an optical fiber ribbon, and the signal transmission component in the first accommodation groove of the right protection component is an electric unit.
The butterfly-shaped lead-in optical cable described above is characterized in that: a second reinforcement accommodating cavity is formed in the protection component main body, and a second reinforcement unit is arranged in the second reinforcement accommodating cavity.
The butterfly-shaped lead-in optical cable described above is characterized in that: the first transverse reinforcing member and the second transverse reinforcing member are disposed in parallel and are the same length, and the longitudinal reinforcing member is perpendicular to the first transverse reinforcing member.
The butterfly-shaped lead-in optical cable described above is characterized in that: the first transverse reinforcing member defines a fourth receiving slot opening upwardly and downwardly into the longitudinal reinforcing member and the second transverse reinforcing member defines a fourth receiving slot opening downwardly and downwardly into the longitudinal reinforcing member.
The butterfly-shaped lead-in optical cable described above is characterized in that: and an optical fiber or an optical fiber ribbon or an electric unit is arranged in the fourth accommodating groove.
The butterfly-shaped lead-in optical cable described above is characterized in that: the optical fiber is a single-mode optical fiber or a multimode optical fiber.
The butterfly-shaped lead-in optical cable described above is characterized in that: the material of the protection part is flame-retardant polyolefin.
The butterfly-shaped lead-in optical cable described above is characterized in that: the second reinforcing unit is a steel wire.
The butterfly-shaped lead-in optical cable described above is characterized in that: the material of the outer protective layer is flame-retardant polyolefin.
The invention has the following beneficial effects:
1. the optical fiber cable has the advantages that the common tight sleeve structure of the butterfly-shaped lead-in optical cable is not adopted, so that the influence of stress generated by a protective structure outside the optical fiber after processing and cooling on the optical fiber is avoided, and the attenuation is overlarge.
2. The protection part and the first reinforcing unit are mutually spliced to form the protection of the signal transmission part, and only the protection part is pulled out of the first reinforcing unit when the signal transmission part is taken, so that the construction is more convenient.
3. The I-shaped first reinforcing unit not only improves the compression resistance of the optical cable, but also improves the tensile resistance of the optical cable, and also plays a role in shaping the optical cable, and meanwhile, when the optical cable is pulled, the tensile force is distributed in the I-shaped first reinforcing unit, so that the tensile force borne by the optical cable is more uniform.
4. The elastic limiting parts are arranged on two sides of the first reinforcing unit, so that the protecting parts can be fixed, when the outer protective layer is damaged, the protecting parts cannot be separated from the first reinforcing unit, so that the optical fibers in the first reinforcing unit cannot be damaged, meanwhile, materials for fixing such as yarn binding and the like are avoided in the production process, the cost is saved, the production steps are simplified, and the production efficiency is improved.
5. The elastic limiting part has elasticity, when the protecting part is pulled outwards by force, the protecting part can be taken out, the protecting part can be reset and fixed by opening the elastic limiting part, the cable core is not damaged, and the construction is convenient.
6. When the upper side and the lower side are stressed, the first limiting surface of the left side protection part is positioned on the left side of the bottom wall of the first accommodating groove, the first limiting surface of the right side protection part is positioned on the right side of the bottom wall of the first accommodating groove, and the end parts of the first transverse reinforcing part and the second transverse reinforcing part cannot be extruded to the first accommodating groove, so that the optical cable has higher lateral pressure resistance.
7. The optical cable can transmit optical signals and electric signals simultaneously, when the optical signals and the electric signals are transmitted on two sides of the longitudinal reinforcing component, the optical signals and the electric signals are isolated through the first reinforcing unit, and the influence of heat generated during the transmission of the electric unit on the transmission of the optical signals in the optical fiber ribbon is avoided.
8. The height of the first insertion groove is smaller than the distance between the left ends of the two elastic limiting parts on the left side, and the height of the second insertion groove is smaller than the distance between the right ends of the two elastic limiting parts on the right side, so that the plugging part is not limited by the distance between the end parts of the two elastic limiting parts when passing through the end parts of the two elastic limiting parts, and the plugging of the first reinforcing unit and the protecting part is facilitated.
9. The first inclined plane is arranged, and when the protection component main body passes through the end parts of the two elastic limiting components, the end parts of the two elastic limiting components can be spread up and down by the first inclined plane, so that the protection component main body is convenient to enter.
10. By arranging the fourth accommodating groove, the weight of the optical cable is reduced, the material is saved, the optical fiber or the optical fiber ribbon or the electric unit can be arranged in the fourth accommodating groove, and the transmission capacity of optical signals or electric signals in the optical cable is increased.
Drawings
Fig. 1 is a front view of embodiment example 1.
Fig. 2 is a schematic perspective view of a section of embodiment example 1.
Fig. 3 is a schematic perspective view of a protective member of embodiment example 1.
Fig. 4 is a schematic perspective view of a first reinforcement unit of embodiment 1.
Fig. 5 is a front view of embodiment example 2.
Fig. 6 is a schematic perspective view of a section of embodiment example 2.
Fig. 7 is a schematic perspective view of a protective member of embodiment example 2.
Fig. 8 is a schematic perspective view of the first reinforcement unit of embodiment 2.
Fig. 9 is a front view of embodiment example 3.
Fig. 10 is a schematic perspective view of a section of embodiment example 4.
Fig. 11 is a front view of embodiment example 5.
Fig. 12 is a schematic perspective view of a protective member of embodiment 6.
Fig. 13 is a schematic perspective view of a first reinforcement unit of embodiment 6.
Fig. 14 is a schematic perspective view of a first reinforcement unit of embodiment 7.
In the figure: 1. outer jacket, 2 protective member, 21 protective member body, 22, first spacer member, 23, first receiving channel, 24, second spacer member, 25, second receiving channel, 26, third spacer member, 27, second strength member receiving cavity, 28, first stop surface, 29, first arcuate surface, 210, second arcuate surface, 211, third receiving channel, 212, first angled surface, 3, first reinforcement unit, 31, first lateral reinforcement member, 32, first insertion channel, 33, longitudinal reinforcement member, 34, second lateral reinforcement member, 35, second insertion channel, 36, resilient stop member, 38, second angled surface, 39, fourth receiving channel, 4, optical fiber, 5, second reinforcement unit, 6, optical fiber ribbon, 7.
Detailed Description
Example 1
Please refer to fig. 1 to 4, a butterfly-shaped drop cable, which has an outer sheath 1, and is characterized in that: the outer protective layer 1 is internally provided with a first integrally formed reinforcing unit 3, the first reinforcing unit 3 is composed of a first transverse reinforcing part 31 positioned above, a second transverse reinforcing part 34 positioned below and a longitudinal reinforcing part 33 positioned between the first transverse reinforcing part 31 and the second transverse reinforcing part 34, the first transverse reinforcing part 31 and the second transverse reinforcing part 34 are arranged in parallel, the longitudinal reinforcing part 33 is perpendicular to the first transverse reinforcing part 31, a first inserting groove 32 is formed by the first transverse reinforcing part 31 and the second transverse reinforcing part 34 on the left side of the longitudinal reinforcing part 33, a second inserting groove 35 is formed by the longitudinal reinforcing part 33 and the first transverse reinforcing part 31 and the second transverse reinforcing part 34 on the right side of the longitudinal reinforcing part 33, and the first inserting groove 32 and the second inserting groove 35 are respectively inserted with a protecting part 2;
the protection component 2 is provided with a protection component main body 21, a second reinforcement accommodating cavity 27 is formed in the protection component main body 21, a second reinforcement unit 5 is arranged in the second reinforcement accommodating cavity 27, a second arc-shaped surface 210 is formed on the left side wall of the protection component main body 21, a plug-in component is fixedly arranged on the right side of the protection component main body 21, a first limit surface 28 is formed on the right side wall of the protection component main body 21 above the plug-in component, a first limit surface 28 is also formed on the right side wall of the protection component main body 21 below the plug-in component, the plug-in component is composed of a first isolation component 22 positioned above, a third isolation component 26 positioned below and a second isolation component 24 positioned between the first isolation component 22 and the third isolation component 26, a first accommodating groove 23 is formed between the first isolation component 22 and the second isolation component 24, a second accommodating groove 25 is formed between the second isolating part 24 and the third isolating part 26, at least one optical fiber 4 is arranged in the first accommodating groove 23 and the second accommodating groove 25, the first limiting surface 28 above the plugging part of the left protecting part 2 is jointed with the left side wall of the first transverse reinforcing part 31, the first limiting surface 28 below the plugging part of the left protecting part 2 is jointed with the left side wall of the second transverse reinforcing part 34, the first limiting surface 28 above the plugging part of the right protecting part 2 is jointed with the right side wall of the first transverse reinforcing part 31, the first limiting surface 28 below the plugging part of the right protecting part 2 is jointed with the right side wall of the second transverse reinforcing part 34, the distance from the first limiting surface 28 above to the opening of the first accommodating groove 23 is larger than the depth of the first accommodating groove 23, the distance from the first limiting surface 28 below to the opening of the second accommodating groove 25 is greater than the depth of the second accommodating groove 25.
Example 2 of the embodiment
Please refer to fig. 5 to fig. 8, a butterfly-shaped drop cable, which has an outer sheath 1, and is characterized in that: the outer protective layer 1 is internally provided with a first integrally formed reinforcing unit 3, the first reinforcing unit 3 is composed of a first transverse reinforcing part 31 positioned above, a second transverse reinforcing part 34 positioned below and a longitudinal reinforcing part 33 positioned between the first transverse reinforcing part 31 and the second transverse reinforcing part 34, the first transverse reinforcing part 31 and the second transverse reinforcing part 34 are arranged in parallel, the longitudinal reinforcing part 33 is perpendicular to the first transverse reinforcing part 31, the upper parts of the left side wall and the right side wall of the first transverse reinforcing part 31 are respectively fixedly provided with an elastic limiting part 36 with the outer ends bent downwards in an arc shape, the lower parts of the left side wall and the right side wall of the second transverse reinforcing part 34 are respectively fixedly provided with an elastic limiting part 36 with the outer ends bent upwards in an arc shape, the longitudinal reinforcing part 33 and the first transverse reinforcing part 31 and the second transverse part 34 positioned at the left side of the longitudinal reinforcing part 33 form a first inserting groove 32, the longitudinal reinforcing part 33 and the first transverse reinforcing part 31 and the second transverse part 34 positioned at the right side of the longitudinal reinforcing part 33 form a second inserting groove 35, and the first inserting groove 35 and the second inserting groove 2 are respectively inserted into the first inserting groove 35;
The protection component 2 is provided with a protection component main body 21, a second reinforcement accommodating cavity 27 is formed in the protection component main body 21, a second reinforcement unit 5 is arranged in the second reinforcement accommodating cavity 27, a second arc-shaped surface 210 is formed on the left side wall of the protection component main body 21, a first arc-shaped surface 29 which is concentric with the second arc-shaped surface 210 and has a radius smaller than that of the second arc-shaped surface 210 is formed on the upper part and the lower part of the second arc-shaped surface 210, the right end surface of the first arc-shaped surface 29 and the corresponding first limiting surface 28 are positioned on the same plane, the sum of the radian of the two first arc-shaped surfaces 29 is smaller than that of the second arc-shaped surface 210, the first arc-shaped surface 29 is attached to the inner side wall of the corresponding elastic limiting component 36, an inserting component is fixedly arranged on the right side of the protection component main body 21, the right side wall of the protection component main body 21 above the inserting component forms a first limiting surface 28, the right side wall of the protective member main body 21 below the plug member is also formed with a first limit surface 28, the plug member is composed of a first isolation member 22 located above, a third isolation member 26 located below and a second isolation member 24 located between the first isolation member 22 and the third isolation member 26, a first accommodating groove 23 is formed between the first isolation member 22 and the second isolation member 24, a second accommodating groove 25 is formed between the second isolation member 24 and the third isolation member 26, at least one optical fiber 4 is arranged in the first accommodating groove 23 and the second accommodating groove 25, the first limit surface 28 above the plug member of the left protective member 2 is attached to the left side wall of the first lateral reinforcement member 31, the first limit surface 28 below the plug member of the left protective member 2 is attached to the left side wall of the second lateral reinforcement member 34, the first spacing surface 28 of the upper side of the plug-in component of the right side protection component 2 is attached to the right side wall of the first transverse reinforcement component 31, the first spacing surface 28 of the lower side of the plug-in component of the right side protection component 2 is attached to the right side wall of the second transverse reinforcement component 34, the distance from the first spacing surface 28 of the upper side to the opening of the first accommodating groove 23 is greater than the depth of the first accommodating groove 23, and the distance from the first spacing surface 28 of the lower side to the opening of the second accommodating groove 25 is greater than the depth of the second accommodating groove 25.
Compared with the embodiment 1, the elastic limiting parts 36 at two sides of the first reinforcing unit 3 can fix the protecting part 2, and when the outer protective layer 1 is damaged, the protecting part 2 is not separated from the first reinforcing unit 3, so that the optical fiber 4 inside is protected from being damaged, the use of fixing materials such as yarn binding and the like in the production process is avoided, the cost is saved, the production steps are simplified, and the production efficiency is improved; the elastic limiting part 36 has elasticity, when the protecting part 2 is pulled outwards by force, the protecting part 2 can be taken out, the protecting part 2 can be reset and fixed by opening the elastic limiting part 36, a cable core is not damaged, and the construction is convenient; when the upper and lower sides are pressurized, the first limiting surface 28 of the left side protection member 2 is located at the left side of the bottom walls of the first accommodation groove 23 and the second accommodation groove 25, and the first limiting surface 28 of the right side protection member 2 is located at the right side of the bottom walls of the first accommodation groove 23 and the second accommodation groove 25, and the ends of the first lateral reinforcement member 31 and the second lateral reinforcement member 34 do not press the first accommodation groove 23 and the second accommodation groove 25, so that the optical cable has higher lateral pressure resistance.
Example 3
Please refer to fig. 9, and refer to fig. 7 and 8, a butterfly-shaped drop cable, which has an outer sheath 1, and is characterized in that: the outer protective layer 1 is internally provided with a first integrally formed reinforcing unit 3, the first reinforcing unit 3 is composed of a first transverse reinforcing part 31 positioned above, a second transverse reinforcing part 34 positioned below and a longitudinal reinforcing part 33 positioned between the first transverse reinforcing part 31 and the second transverse reinforcing part 34, the first transverse reinforcing part 31 and the second transverse reinforcing part 34 are arranged in parallel, the longitudinal reinforcing part 33 is perpendicular to the first transverse reinforcing part 31, the upper parts of the left side wall and the right side wall of the first transverse reinforcing part 31 are respectively fixedly provided with an elastic limiting part 36 with the outer ends bent downwards in an arc shape, the lower parts of the left side wall and the right side wall of the second transverse reinforcing part 34 are respectively fixedly provided with an elastic limiting part 36 with the outer ends bent upwards in an arc shape, the lower parts of the left side wall and the right side wall of the second transverse reinforcing part 34 are respectively provided with an elastic limiting part 36 with the outer ends bent upwards in an arc shape, the longitudinal reinforcing part 33 and the first transverse reinforcing part 31 and the second transverse reinforcing part 34 on the left side are respectively provided with a first inserting groove 32, the longitudinal reinforcing part 33 and the first transverse reinforcing part 31 and the second transverse reinforcing part 35 on the left side are respectively inserted into the first inserting groove 2;
The protection component 2 is provided with a protection component main body 21, a second reinforcement accommodating cavity 27 is formed in the protection component main body 21, a second reinforcement unit 5 is arranged in the second reinforcement accommodating cavity 27, a second arc-shaped surface 210 is formed on the left side wall of the protection component main body 21, a first arc-shaped surface 29 which is concentric with the second arc-shaped surface 210 and has a radius smaller than that of the second arc-shaped surface 210 is formed on the upper part and the lower part of the second arc-shaped surface 210, the right end surface of the first arc-shaped surface 29 and the corresponding first limiting surface 28 are positioned on the same plane, the sum of the radian of the two first arc-shaped surfaces 29 is smaller than that of the second arc-shaped surface 210, the first arc-shaped surface 29 is attached to the inner side wall of the corresponding elastic limiting component 36, an inserting component is fixedly arranged on the right side of the protection component main body 21, the right side wall of the protection component main body 21 above the inserting component forms a first limiting surface 28, the right side wall of the protective component main body 21 below the plugging component is also provided with a first limiting surface 28, the plugging component is composed of a first isolating component 22 positioned above, a third isolating component 26 positioned below and a second isolating component 24 positioned between the first isolating component 22 and the third isolating component 26, a first accommodating groove 23 is formed between the first isolating component 22 and the second isolating component 24, a second accommodating groove 25 is formed between the second isolating component 24 and the third isolating component 26, at least one optical fiber ribbon 6 is arranged in the first accommodating groove 23 and the second accommodating groove 25, the optical fiber ribbon 6 is formed by combining at least one optical fiber 4, the first limiting surface 28 above the plugging component of the left protective component 2 is jointed with the left side wall of the first transverse reinforcing component 31, the first limiting surface 28 below the plugging component of the left protective component 2 is jointed with the left side wall of the second transverse reinforcing component 34, the first spacing surface 28 of the upper side of the plug-in component of the right side protection component 2 is attached to the right side wall of the first transverse reinforcement component 31, the first spacing surface 28 of the lower side of the plug-in component of the right side protection component 2 is attached to the right side wall of the second transverse reinforcement component 34, the distance from the first spacing surface 28 of the upper side to the opening of the first accommodating groove 23 is greater than the depth of the first accommodating groove 23, and the distance from the first spacing surface 28 of the lower side to the opening of the second accommodating groove 25 is greater than the depth of the second accommodating groove 25.
Example 4
Please refer to fig. 10, and refer to fig. 7 and 8, a butterfly-shaped drop cable, which has an outer sheath 1, and is characterized in that: the outer protective layer 1 is internally provided with a first integrally formed reinforcing unit 3, the first reinforcing unit 3 is composed of a first transverse reinforcing part 31 positioned above, a second transverse reinforcing part 34 positioned below and a longitudinal reinforcing part 33 positioned between the first transverse reinforcing part 31 and the second transverse reinforcing part 34, the first transverse reinforcing part 31 and the second transverse reinforcing part 34 are arranged in parallel, the longitudinal reinforcing part 33 is perpendicular to the first transverse reinforcing part 31, the upper parts of the left side wall and the right side wall of the first transverse reinforcing part 31 are respectively fixedly provided with an elastic limiting part 36 with the outer ends bent downwards in an arc shape, the lower parts of the left side wall and the right side wall of the second transverse reinforcing part 34 are respectively fixedly provided with an elastic limiting part 36 with the outer ends bent upwards in an arc shape, the longitudinal reinforcing part 33 and the first transverse reinforcing part 31 and the second transverse part 34 positioned at the left side of the longitudinal reinforcing part 33 form a first inserting groove 32, the longitudinal reinforcing part 33 and the first transverse reinforcing part 31 and the second transverse part 34 positioned at the right side of the longitudinal reinforcing part 33 form a second inserting groove 35, and the first inserting groove 35 and the second inserting groove 2 are respectively inserted into the first inserting groove 35;
The protection component 2 is provided with a protection component main body 21, a second reinforcement accommodating cavity 27 is formed in the protection component main body 21, a second reinforcement unit 5 is arranged in the second reinforcement accommodating cavity 27, a second arc-shaped surface 210 is formed on the left side wall of the protection component main body 21, a first arc-shaped surface 29 which is concentric with the second arc-shaped surface 210 and has a radius smaller than that of the second arc-shaped surface 210 is formed on the upper part and the lower part of the second arc-shaped surface 210, the right end surface of the first arc-shaped surface 29 and the corresponding first limiting surface 28 are positioned on the same plane, the sum of the radian of the two first arc-shaped surfaces 29 is smaller than that of the second arc-shaped surface 210, the first arc-shaped surface 29 is attached to the inner side wall of the corresponding elastic limiting component 36, an inserting component is fixedly arranged on the right side of the protection component main body 21, the right side wall of the protection component main body 21 above the inserting component forms a first limiting surface 28, the right side wall of the protective member main body 21 below the plugging member is also formed with a first limiting surface 28, the plugging member is composed of a first isolation member 22 positioned above, a third isolation member 26 positioned below and a second isolation member 24 positioned between the first isolation member 22 and the third isolation member 26, a first accommodating groove 23 is formed between the first isolation member 22 and the second isolation member 24, a second accommodating groove 25 is formed between the second isolation member 24 and the third isolation member 26, at least one optical fiber ribbon 6 is arranged in the first accommodating groove 23 and the second accommodating groove 25 of the protective member 2 on the left side, the optical fiber ribbon 6 is formed by combining at least one optical fiber 4, at least one ribbon-shaped electric unit 7 is arranged in the first accommodating groove 23 and the second accommodating groove 25 of the protective member 2 on the right side, the electric unit 7 is composed of an electric conductor and an insulating layer extruded outside the electric conductor, the first limiting surface 28 above the plugging member of the left protection member 2 is attached to the left side wall of the first lateral reinforcement member 31, the first limiting surface 28 below the plugging member of the left protection member 2 is attached to the left side wall of the second lateral reinforcement member 34, the first limiting surface 28 above the plugging member of the right protection member 2 is attached to the right side wall of the first lateral reinforcement member 31, the first limiting surface 28 below the plugging member of the right protection member 2 is attached to the right side wall of the second lateral reinforcement member 34, the distance from the first limiting surface 28 above to the opening of the first accommodation groove 23 is greater than the depth of the first accommodation groove 23, and the distance from the first limiting surface 28 below to the opening of the second accommodation groove 25 is greater than the depth of the second accommodation groove 25.
In this embodiment, one side of the optical cable may transmit optical signals, the other side may transmit electrical signals, and the optical fiber ribbon 6 and the electrical unit 7 are isolated by the first reinforcing unit 3, so that the influence of heat generated during the transmission of the electrical unit 7 on the transmission of optical signals in the optical fiber ribbon 6 is avoided.
Example 5
Please refer to fig. 11, and refer to fig. 7 and 8, a butterfly-shaped drop cable, which has an outer sheath 1, and is characterized in that: the outer protective layer 1 is internally provided with a first integrally formed reinforcing unit 3, the first reinforcing unit 3 is composed of a first transverse reinforcing part 31 positioned above, a second transverse reinforcing part 34 positioned below and a longitudinal reinforcing part 33 positioned between the first transverse reinforcing part 31 and the second transverse reinforcing part 34, the first transverse reinforcing part 31 and the second transverse reinforcing part 34 are arranged in parallel, the longitudinal reinforcing part 33 is perpendicular to the first transverse reinforcing part 31, the upper parts of the left side wall and the right side wall of the first transverse reinforcing part 31 are respectively fixedly provided with an elastic limiting part 36 with the outer ends bent downwards in an arc shape, the lower parts of the left side wall and the right side wall of the second transverse reinforcing part 34 are respectively fixedly provided with an elastic limiting part 36 with the outer ends bent upwards in an arc shape, the longitudinal reinforcing part 33 and the first transverse reinforcing part 31 and the second transverse part 34 positioned at the left side of the longitudinal reinforcing part 33 form a first inserting groove 32, the longitudinal reinforcing part 33 and the first transverse reinforcing part 31 and the second transverse part 34 positioned at the right side of the longitudinal reinforcing part 33 form a second inserting groove 35, and the first inserting groove 35 and the second inserting groove 2 are respectively inserted into the first inserting groove 35;
The protection component 2 is provided with a protection component main body 21, a second reinforcement accommodating cavity 27 is formed in the protection component main body 21, a second reinforcement unit 5 is arranged in the second reinforcement accommodating cavity 27, a second arc-shaped surface 210 is formed on the left side wall of the protection component main body 21, a first arc-shaped surface 29 which is concentric with the second arc-shaped surface 210 and has a radius smaller than that of the second arc-shaped surface 210 is formed on the upper part and the lower part of the second arc-shaped surface 210, the right end surface of the first arc-shaped surface 29 and the corresponding first limiting surface 28 are positioned on the same plane, the sum of the radian of the two first arc-shaped surfaces 29 is smaller than that of the second arc-shaped surface 210, the first arc-shaped surface 29 is attached to the inner side wall of the corresponding elastic limiting component 36, an inserting component is fixedly arranged on the right side of the protection component main body 21, the right side wall of the protection component main body 21 above the inserting component forms a first limiting surface 28, the right side wall of the protective component main body 21 below the plugging component is also provided with a first limiting surface 28, the plugging component is composed of a first isolation component 22 positioned above, a third isolation component 26 positioned below and two second isolation components 24 positioned between the first isolation component 22 and the third isolation component 26, a first accommodating groove 23 is formed between the first isolation component 22 and the second isolation component 24, a second accommodating groove 25 is formed between the second isolation component 24 and the third isolation component 26, a third accommodating groove 211 is formed between the two second isolation components 24, at least one optical fiber ribbon 6 is arranged in the first accommodating groove 23, the second accommodating groove 25 and the third accommodating groove 211 of the left protective component 2, the optical fiber ribbon 6 is formed by combining at least one optical fiber 4, at least one ribbon-shaped electric unit 7 is arranged in the first accommodating groove 23, the second accommodating groove 25 and the third accommodating groove 211 of the right protective component 2, the electric unit 7 is composed of an electric conductor and an insulating layer extruded outside the electric conductor, the first limiting surface 28 above the plugging component of the left protection component 2 is attached to the left side wall of the first transverse reinforcement component 31, the first limiting surface 28 below the plugging component of the left protection component 2 is attached to the left side wall of the second transverse reinforcement component 34, the first limiting surface 28 above the plugging component of the right protection component 2 is attached to the right side wall of the first transverse reinforcement component 31, the first limiting surface 28 below the plugging component of the right protection component 2 is attached to the right side wall of the second transverse reinforcement component 34, the distance from the first limiting surface 28 above to the opening of the first accommodating groove 23 is greater than the depth of the first accommodating groove 23, and the distance from the first limiting surface 28 below to the opening of the second accommodating groove 25 is greater than the depth of the second accommodating groove 25.
The present embodiment has a larger number of transmissions of the optical fiber ribbon 6 and the electric unit 7 and a larger number of signal transmissions than embodiment 4.
Example 6
Please refer to fig. 12 and 13, and refer to fig. 7 and 8, a butterfly-shaped drop cable, which has an outer sheath 1, and is characterized in that: the first reinforcement unit 3 is arranged in the outer protective layer 1, the first reinforcement unit 3 is composed of a first transverse reinforcement member 31 positioned above, a second transverse reinforcement member 34 positioned below, and a longitudinal reinforcement member 33 positioned between the first transverse reinforcement member 31 and the second transverse reinforcement member 34, the first transverse reinforcement member 31 and the second transverse reinforcement member 34 are arranged in parallel, the longitudinal reinforcement member 33 is perpendicular to the first transverse reinforcement member 31, the upper parts of the left and right side walls of the first transverse reinforcement member 31 are respectively fixedly provided with an elastic limiting member 36 with the outer ends bent downwards in an arc shape, the lower parts of the left and right side walls of the second transverse reinforcement member 34 are respectively fixedly provided with an elastic limiting member 36 with the outer ends bent upwards in an arc shape, a second inclined plane 38 is arranged between the inner wall of the elastic limiting member 36 on the left side of the first transverse reinforcement member 31 and the left side wall of the first transverse reinforcement member 31, a second inclined surface 38 is also arranged between the inner wall of the elastic limit part 36 on the left side of the second transverse reinforcement part 34 and the left side wall of the second transverse reinforcement part 34, a second inclined surface 38 is arranged between the inner wall of the elastic limit part 36 on the right side of the first transverse reinforcement part 31 and the right side wall of the first transverse reinforcement part 31, a second inclined surface 38 is also arranged between the inner wall of the elastic limit part 36 on the right side of the second transverse reinforcement part 34 and the right side wall of the second transverse reinforcement part 34, the distance between the left ends of the two second inclined surfaces 38 on the left side is larger than the distance between the right ends of the two second inclined surfaces 38 on the left side, the distance between the right ends of the two second inclined surfaces 38 on the right side is larger than the distance between the left ends of the two second inclined surfaces 38 on the right side, the first transverse reinforcing member 31 and the second transverse reinforcing member 34 on the left side of the longitudinal reinforcing member 33 form a first insertion groove 32, the first transverse reinforcing member 31 and the second transverse reinforcing member 34 on the right side of the longitudinal reinforcing member 33 form a second insertion groove 35, the first insertion groove 32 has a height smaller than the distance between the left ends of the two elastic limiting members 36 on the left side, the second insertion groove 35 has a height smaller than the distance between the right ends of the two elastic limiting members 36 on the right side, and the first insertion groove 32 and the second insertion groove 35 are respectively inserted with a protection member 2;
The protection component 2 is provided with a protection component main body 21, a second reinforcement accommodating cavity 27 is formed in the protection component main body 21, a second reinforcement unit 5 is arranged in the second reinforcement accommodating cavity 27, a second arc-shaped surface 210 is formed on the left side wall of the protection component main body 21, a first arc-shaped surface 29 which is concentric with the second arc-shaped surface 210 and has a smaller radius than the second arc-shaped surface 210 is formed on the upper part and the lower part of the second arc-shaped surface 210, the right end surface of the first arc-shaped surface 29 and the corresponding first limiting surface 28 are positioned on the same plane, the sum of the radian of the two first arc-shaped surfaces 29 is smaller than the radian of the second arc-shaped surface 210, the first arc-shaped surface 29 is attached to the inner side wall of the corresponding elastic limiting component 36, an inserting component is fixedly arranged on the right side of the protection component main body 21, a first limiting surface 28 is formed on the right side wall of the protection component main body 21 above the inserting component, a first limiting surface 28 is also formed on the right side wall of the protection component main body 21 below the inserting component, a first inclined plane 212 is attached between the first limiting surface 28 and the corresponding first arc-shaped surface 29 and is attached to the corresponding second inclined plane 38, the plugging component is composed of a first isolating component 22 positioned above, a third isolating component 26 positioned below and a second isolating component 24 positioned between the first isolating component 22 and the third isolating component 26, a first accommodating groove 23 is formed between the first isolating component 22 and the second isolating component 24, a second accommodating groove 25 is formed between the second isolating component 24 and the third isolating component 26, at least one optical fiber ribbon 6 is arranged in the first accommodating groove 23 and the second accommodating groove 25 of the left protecting component 2, the optical fiber ribbon 6 is formed by combining at least one optical fiber 4, at least one ribbon-shaped electric unit 7 is arranged in the first accommodating groove 23 and the second accommodating groove 25 of the right protecting component 2, the electric unit 7 is composed of an electric conductor and an insulating layer extruded outside the electric conductor, the first limiting surface 28 above the plugging component of the left protection component 2 is attached to the left side wall of the first transverse reinforcement component 31, the first limiting surface 28 below the plugging component of the left protection component 2 is attached to the left side wall of the second transverse reinforcement component 34, the first limiting surface 28 above the plugging component of the right protection component 2 is attached to the right side wall of the first transverse reinforcement component 31, the first limiting surface 28 below the plugging component of the right protection component 2 is attached to the right side wall of the second transverse reinforcement component 34, the distance from the first limiting surface 28 above to the opening of the first accommodating groove 23 is greater than the depth of the first accommodating groove 23, and the distance from the first limiting surface 28 below to the opening of the second accommodating groove 25 is greater than the depth of the second accommodating groove 25.
In the present embodiment, compared with embodiment 5, the height of the first insertion groove 32 is smaller than the distance between the left ends of the two elastic limiting members 36 on the left side, and the height of the second insertion groove 35 is smaller than the distance between the right ends of the two elastic limiting members 36 on the right side, so that the insertion member is not limited by the distance between the ends of the two elastic limiting members 36 when passing through the ends of the two elastic limiting members 36, thereby facilitating the insertion of the first reinforcing unit and the protection member; the first inclined plane 212 is provided, and when the protective component main body 21 passes through the end parts of the two elastic limiting components 36, the end parts of the two elastic limiting components 36 can be spread up and down by the first inclined plane 212, so that the protective component main body is convenient to enter.
Example 7
Please refer to fig. 14, and refer to fig. 1 to 3, a butterfly drop cable having an outer sheath 1, wherein: the outer sheath 1 is internally provided with a first integrally formed reinforcing unit 3, the first reinforcing unit 3 is composed of a first transverse reinforcing part 31 positioned above, a second transverse reinforcing part 34 positioned below and a longitudinal reinforcing part 33 positioned between the first transverse reinforcing part 31 and the second transverse reinforcing part 34, the first transverse reinforcing part 31 and the second transverse reinforcing part 34 are arranged in parallel, the longitudinal reinforcing part 33 is perpendicular to the first transverse reinforcing part 31, a first inserting groove 32 is formed by the first transverse reinforcing part 31 and the second transverse reinforcing part 34 on the left side of the longitudinal reinforcing part 33, a second inserting groove 35 is formed by the longitudinal reinforcing part 33 and the first transverse reinforcing part 31 and the second transverse reinforcing part 34 on the right side of the longitudinal reinforcing part 33, a fourth accommodating groove 39 is formed on the first transverse reinforcing part 31, the opening is downward and extends downward into the longitudinal reinforcing part 33, and the first inserting groove 32 and the second inserting groove 35 are respectively provided with a first protecting part 2;
The protection component 2 is provided with a protection component main body 21, a second reinforcement accommodating cavity 27 is formed in the protection component main body 21, a second reinforcement unit 5 is arranged in the second reinforcement accommodating cavity 27, a second arc-shaped surface 210 is formed on the left side wall of the protection component main body 21, a plug-in component is fixedly arranged on the right side of the protection component main body 21, a first limit surface 28 is formed on the right side wall of the protection component main body 21 above the plug-in component, a first limit surface 28 is also formed on the right side wall of the protection component main body 21 below the plug-in component, the plug-in component is composed of a first isolation component 22 positioned above, a third isolation component 26 positioned below and a second isolation component 24 positioned between the first isolation component 22 and the third isolation component 26, a first accommodating groove 23 is formed between the first isolation component 22 and the second isolation component 24, a second accommodating groove 25 is formed between the second isolating part 24 and the third isolating part 26, at least one optical fiber 4 is arranged in the first accommodating groove 23 and the second accommodating groove 25, the first limiting surface 28 above the plugging part of the left protecting part 2 is jointed with the left side wall of the first transverse reinforcing part 31, the first limiting surface 28 below the plugging part of the left protecting part 2 is jointed with the left side wall of the second transverse reinforcing part 34, the first limiting surface 28 above the plugging part of the right protecting part 2 is jointed with the right side wall of the first transverse reinforcing part 31, the first limiting surface 28 below the plugging part of the right protecting part 2 is jointed with the right side wall of the second transverse reinforcing part 34, the distance from the first limiting surface 28 above to the opening of the first accommodating groove 23 is larger than the depth of the first accommodating groove 23, the distance from the first limiting surface 28 below to the opening of the second accommodating groove 25 is greater than the depth of the second accommodating groove 25.
In this embodiment, by providing the fourth accommodating groove 39, the weight of the optical cable is reduced, the material is saved, and the optical fiber 4, the optical fiber ribbon 6 or the electrical unit 7 can be placed in the fourth accommodating groove 39, so that the transmission capacity of the optical signal or the electrical signal in the optical cable is increased.
The butterfly-shaped lead-in cable according to any of the above embodiments, wherein: the optical fiber 4 is a single-mode optical fiber or a multimode optical fiber.
The butterfly-shaped lead-in cable according to any of the above embodiments, wherein: the material of the protective component 2 is flame-retardant polyolefin.
The butterfly-shaped lead-in cable according to any of the above embodiments, wherein: the second reinforcing unit 5 is a steel wire.
The butterfly-shaped lead-in cable according to any of the above embodiments, wherein: the material of the outer protective layer 1 is flame-retardant polyolefin.
The butterfly-shaped lead-in cable according to any of the above embodiments, wherein: the first 31 and second 34 transverse reinforcing members are of the same length.
In a butterfly drop cable according to any of the above embodiments, the bottom walls of the first accommodation groove 23 and the second accommodation groove 25 refer to the inner walls opposite to the openings of the first accommodation groove 23 and the second accommodation groove 25.
In the invention, a tight sleeve structure commonly used for butterfly-shaped lead-in optical cables is not adopted, so that the influence of stress generated by a protective structure outside the optical fibers after processing and cooling is avoided on the corresponding optical fibers; the protection component 2 and the first reinforcement unit 3 are mutually spliced to form protection for the optical fiber 4 or the optical fiber ribbon 6 or the electric unit 7, and only the protection component 2 is required to be pulled out when the optical fiber 4 or the optical fiber ribbon 6 or the electric unit 7 is taken out, so that the construction is more convenient; the I-shaped first reinforcing unit 3 not only improves the compression resistance of the optical cable, but also improves the tensile resistance of the optical cable, and also plays a role in shaping the optical cable, and meanwhile, when the optical cable is pulled, the tensile force is distributed in the I-shaped first reinforcing unit 3, so that the tensile force borne by the optical cable is more uniform.
The above examples are only preferred embodiments of the present invention and should not be construed as limiting the present invention. The protection scope of the present invention is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this invention are also within the scope of the invention.
Claims (10)
1. Butterfly drop cable with an outer sheath (1), characterized in that: the outer protective layer (1) is internally provided with a first integrally formed reinforcing unit (3), the first reinforcing unit (3) is composed of a first transverse reinforcing part (31) positioned above, a second transverse reinforcing part (34) positioned below and a longitudinal reinforcing part (33) positioned between the first transverse reinforcing part (31) and the second transverse reinforcing part (34), the first reinforcing unit (3) is I-shaped, the first transverse reinforcing part (31) and the second transverse reinforcing part (34) on the left side of the longitudinal reinforcing part (33) form a first inserting groove (32), the longitudinal reinforcing part (33) and the first transverse reinforcing part (31) and the second transverse reinforcing part (34) on the right side of the longitudinal reinforcing part (33) form a second inserting groove (35), and the first inserting groove (32) and the second inserting groove (35) are respectively inserted with a protective part (2);
The protection component (2) is provided with a protection component main body (21), a second arc-shaped surface (210) is formed on the left side wall of the protection component main body (21), an inserting component is fixedly arranged on the right side of the protection component main body (21), a first limiting surface (28) is formed on the right side wall of the protection component main body (21) above the inserting component, a first containing groove (23) with a plurality of openings right is formed on the right side wall of the protection component main body (21) below the inserting component side by side from top to bottom, at least one signal transmission component is arranged in the first containing groove (23), the first limiting surface (28) above the inserting component of the left side protection component (2) is attached to the left side wall of the first transverse reinforcing component (31), the first limiting surface (28) below the inserting component of the left side protection component (2) is attached to the left side wall of the second transverse reinforcing component (34), the first limiting surface (28) above the inserting component of the right side protection component (2) is attached to the right side wall of the first transverse reinforcing component (31), and the first limiting surface (28) below the right side of the right side protection component (2) is attached to the right side wall of the second transverse reinforcing component (34).
2. A butterfly drop cable according to claim 1, wherein: the material of the protection component (2) is flame-retardant polyolefin.
3. A butterfly drop cable according to claim 2, wherein: the upper parts of the left side wall and the right side wall of the first transverse reinforcing component (31) are respectively fixedly provided with an elastic limiting component (36) with the outer ends bent downwards in an arc mode, the lower parts of the left side wall and the right side wall of the second transverse reinforcing component (34) are respectively fixedly provided with an elastic limiting component (36) with the outer ends bent upwards in an arc mode, the upper part and the lower part of the second arc surface (210) are respectively provided with a first arc surface (29) which is concentric with the second arc surface (210) and has a radius smaller than that of the second arc surface (210), the right end face of the first arc surface (29) and the corresponding first limiting surface (28) are located on the same plane, the sum of the radians of the two first arc surfaces (29) is smaller than that of the second arc surface (210), and the first arc surface (29) is attached to the inner side wall of the corresponding elastic limiting component (36).
4. A butterfly drop cable according to claim 3, wherein: a second inclined plane (38) is arranged between the inner wall of the elastic limiting component (36) on the left side of the first transverse reinforcing component (31) and the left side wall of the first transverse reinforcing component (31), a second inclined plane (38) is also arranged between the inner wall of the elastic limiting component (36) on the left side of the second transverse reinforcing component (34) and the left side wall of the second transverse reinforcing component (34), a second inclined plane (38) is arranged between the inner wall of the elastic limiting component (36) on the right side of the first transverse reinforcing component (31) and the right side wall of the first transverse reinforcing component (31), a second inclined plane (38) is also arranged between the inner wall of the elastic limiting component (36) on the right side of the second transverse reinforcing component (34) and the right side wall of the second transverse reinforcing component (34), the distance between the left ends of the two second inclined planes (38) on the left side is larger than the distance between the right ends of the two second inclined planes (38) on the right side, the distance between the right ends of the two second inclined planes (38) on the right side is larger than the distance between the two second inclined planes (38) on the right side of the right side, and the first inclined planes (29) are correspondingly attached to the first inclined planes (29).
5. A butterfly drop cable according to claim 4, wherein: the signal transmission component is an optical fiber (4) or an optical fiber ribbon (6) or an electrical unit (7).
6. A butterfly drop cable according to claim 5, wherein: the signal transmission component in the first accommodating groove (23) of the left protection component (2) is an optical fiber (4) or an optical fiber ribbon (6), and the signal transmission component in the first accommodating groove (23) of the right protection component (2) is an electric unit (7).
7. A butterfly drop cable according to claim 6, wherein: a second reinforcement accommodating cavity (27) is formed in the protection part main body (21), and a second reinforcement unit (5) is arranged in the second reinforcement accommodating cavity (27).
8. A butterfly drop cable according to claim 7, wherein: the first transverse reinforcing member (31) and the second transverse reinforcing member (34) are placed in parallel and have the same length, and the longitudinal reinforcing member (33) is perpendicular to the first transverse reinforcing member (31).
9. A butterfly drop cable according to claim 8, wherein: the first transverse reinforcement member (31) defines a fourth receiving slot (39) opening upwardly and downwardly into the longitudinal reinforcement member (33), and the second transverse reinforcement member (34) defines a fourth receiving slot (39) opening downwardly and downwardly into the longitudinal reinforcement member (33).
10. A butterfly drop cable according to claim 9, wherein: an optical fiber (4) or an optical fiber ribbon (6) or an electric unit (7) is arranged in the fourth accommodating groove (39).
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| CN202310863260.0A CN116594131B (en) | 2023-07-14 | 2023-07-14 | Butterfly-shaped lead-in optical cable |
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| CN202310863260.0A CN116594131B (en) | 2023-07-14 | 2023-07-14 | Butterfly-shaped lead-in optical cable |
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| CN116594131B CN116594131B (en) | 2023-09-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117849973A (en) * | 2024-03-07 | 2024-04-09 | 常熟高通智能装备有限公司 | Optical fiber ribbon cable and photoelectric composite optical fiber ribbon cable |
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| CN212874079U (en) * | 2020-06-24 | 2021-04-02 | 江苏帝诚线缆有限公司 | Anti flat intelligent weak current special power and control cable that roll |
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| CN217562289U (en) * | 2022-04-20 | 2022-10-11 | 山东中迈电缆有限公司 | Multifunctional flame-retardant composite high-strength cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2013213966A (en) * | 2012-04-03 | 2013-10-17 | Fujikura Ltd | Flat optical fiber cable and leading-in method for optical fiber cable |
| CN212874079U (en) * | 2020-06-24 | 2021-04-02 | 江苏帝诚线缆有限公司 | Anti flat intelligent weak current special power and control cable that roll |
| CN112735640A (en) * | 2020-12-16 | 2021-04-30 | 无锡市东田电缆有限公司 | Comprehensive cable for new energy automobile |
| CN217562289U (en) * | 2022-04-20 | 2022-10-11 | 山东中迈电缆有限公司 | Multifunctional flame-retardant composite high-strength cable |
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| CN117849973A (en) * | 2024-03-07 | 2024-04-09 | 常熟高通智能装备有限公司 | Optical fiber ribbon cable and photoelectric composite optical fiber ribbon cable |
| CN117849973B (en) * | 2024-03-07 | 2024-05-03 | 常熟高通智能装备有限公司 | Optical fiber ribbon cable and photoelectric composite optical fiber ribbon cable |
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