CN211208018U - Soft photoelectric hybrid cable for wiring - Google Patents
Soft photoelectric hybrid cable for wiring Download PDFInfo
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- CN211208018U CN211208018U CN201922254839.9U CN201922254839U CN211208018U CN 211208018 U CN211208018 U CN 211208018U CN 201922254839 U CN201922254839 U CN 201922254839U CN 211208018 U CN211208018 U CN 211208018U
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Abstract
The utility model discloses a soft photoelectricity hybrid cable is used in wiring, including the soft skeleton in center, the structure of this soft skeleton in center is: the upper surface and the lower surface are flat surfaces, and the left side and the right side are concave cambered surfaces; a group of optical units are symmetrically arranged on the upper and lower flat surfaces of the central soft framework, and a group of power lines are symmetrically arranged on the concave cambered surfaces on the left and right sides to form a cable core; the outer arc surface of the power line is attached to the concave arc surface; the cable core is coated with a polyester wrapping tape, an outer sheath is extruded outside the wrapping tape, and a tearing rope is arranged in the outer sheath. The utility model discloses it is little to have better compliance, bend radius, and construction convenience need not carry out the butt fusion at the scene and handles, is not subject to site conditions's limitation, and fault recovery handles simply, fast.
Description
Technical Field
The utility model relates to an optical fiber cable technical field, concretely relates to wiring is with soft photoelectricity hybrid cable.
Background
Along with the construction surge of the 5G network, since the coverage radius of the 5G network is smaller than that of the 4G network, the density of the micro base station is greatly increased, and the existing photoelectric hybrid cable generally adopts the following steps: a central strength member + loose-packed optical unit or tight-packed optical fiber + electrical unit structure, which is generally a high-strength metal member or a non-metal member. The optical unit needs to be subjected to fusion splicing treatment on site, is limited by the limitation of site conditions, and has low fusion splicing efficiency and complex fault recovery treatment. When the cable is arranged indoors, the mixed cable has poor flexibility, strong rigidity and large bending radius, thus causing construction inconvenience.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of existing product existence in the construction cloth is put, the utility model provides a stable in structure, safe in utilization, construction are convenient soft photoelectricity hybrid cable for wiring.
In order to achieve the above object, the utility model provides a soft photoelectricity hybrid cable is used in wiring, including the soft skeleton in center, the structure of this soft skeleton in center is: the upper surface and the lower surface are flat surfaces, and the left side and the right side are concave cambered surfaces; a group of optical units are symmetrically arranged on the upper and lower flat surfaces of the central soft framework, and a group of power lines are closely and symmetrically arranged on the concave cambered surfaces on the left and right sides to form a cable core; the outer arc surface of the power line is attached to the concave arc surface; the cable core is coated with a polyester wrapping tape, a low-smoke halogen-free flame-retardant polyolefin outer sheath is extruded outside the wrapping tape, and a tearing rope is arranged in the low-smoke halogen-free flame-retardant polyolefin outer sheath.
Preferably, the central soft skeleton is made of polyethylene or low-smoke halogen-free polyolefin.
Preferably, the power line consists of a copper conductor and an insulating layer extruded outside the copper conductor, and the cross section of the power line is 1.5mm2-6mm2。
Preferably, the optical unit is a butterfly cable optical unit, and the butterfly cable optical unit is composed of an optical fiber, two metal reinforcing members which are respectively positioned at two sides of the optical fiber and coated with an EAA material on the surface of the optical fiber in transverse juxtaposition, and a butterfly sheath which is extruded outside the optical fiber and the metal reinforcing members.
Preferably, a filling rope is arranged at a gap between the butterfly cable optical unit and the power line.
Preferably, the optical unit is a dual-core parallel butterfly cable optical unit, the dual-core parallel butterfly cable optical unit comprises two butterfly cable optical units, and each butterfly cable optical unit is composed of an optical fiber, two metal reinforcing parts which are respectively positioned at two sides of the optical fiber and coated with an EAA material on the surface of the optical fiber in transverse parallel, and a butterfly sheath which is extruded outside the optical fiber and the metal reinforcing parts; the two butterfly cable optical units are connected together through a connecting rib made of sheath materials identical to the sheath.
Preferably, the drawing force between the metal reinforcing member and the outer sheath is not less than 40N.
Preferably, the sheath is made of low-smoke halogen-free flame-retardant polyolefin material with high-temperature cracking resistance.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. by designing the central soft framework, the circular power line in the cable is tightly attached to the concave circular surfaces at two sides of the framework, and the flat double-core parallel butterfly cable optical units are placed at the smooth positions of the upper surface and the lower surface of the framework, so that the stable and round structure of the mixed cable is ensured, and the position sliding phenomenon cannot occur;
2. the double-core optical unit adopts a structure of two parallel butterfly cables, thereby not only forming a whole (or integrally formed structure of the outer sheath), but also being easy to tear and used independently without mutual influence; the butterfly cable uses the metal reinforcing piece with the outer surface coated with the EAA material, the metal reinforcing piece is firmly adhered with the optical unit sheath material, when the optical unit is not bent or stretched in the construction and arrangement, the metal reinforcing piece and the sheath material slide relatively, and the problem that the optical fiber is easy to lose greatly or even break in the construction is solved; the butterfly-shaped cable forms an effective protection body of the optical fiber, a fiber coiling box is not needed, and the investment of the fiber coiling box is reduced;
3. the optical units adopt double-core parallel butterfly cable optical units, and the two parallel butterfly cable optical units are easy to separate through an accurate mold design, the butterfly cable optical fibers are independent, and the fault recovery processing is simple and convenient;
4. the utility model discloses it is little to have better compliance, bend radius, and construction convenience need not carry out the butt fusion at the scene and handles, is not subject to site conditions's limitation, and fault recovery handles simply, fast.
Drawings
FIG. 1 is a schematic structural view of a central flexible backbone;
FIG. 2 is a schematic structural diagram of a parallel twin-core butterfly light unit;
fig. 3 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.
Detailed Description
The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.
As shown in fig. 1, a central soft skeleton 1 has a structure that: the upper and lower surfaces are smooth surfaces 2, and the left and right sides are concave cambered surfaces 3; the central soft framework is prepared from polyethylene or low-smoke halogen-free polyolefin and has certain softness and elasticity;
as shown in fig. 2, a flat double-core parallel butterfly cable optical unit comprises two flat butterfly cable optical units 4, wherein each of the butterfly cable optical units is composed of an optical fiber 5, two metal reinforcing members 6 which are respectively positioned at two sides of the optical fiber and coated with EAA material on the surfaces of the optical fiber in transverse parallel, and a butterfly sheath 7 which is extruded outside the optical fiber and the metal reinforcing members; the butterfly-shaped sheath is made of low-smoke halogen-free flame-retardant polyolefin material with high-temperature cracking resistance; the two butterfly cable optical units are connected together through a connecting rib 8 made of sheath materials the same as the sheath, so that the butterfly cable optical units form a whole, the butterfly cable optical units are convenient to be twisted into a cable, the outer diameter of the optical cable is reduced, and the cost is reduced; the film is easy to tear and be used independently without mutual influence; the length and width of the connecting rib 8 are 0.2 x 0.2 mm; the drawing force between the metal reinforcing piece and the outer sheath is not less than 40N, the butterfly cable uses the metal reinforcing piece of which the outer surface is coated with an EAA (ethylene acrylic acid copolymer) material to firmly adhere the metal reinforcing piece with the optical unit sheath material, so that the relative sliding between the metal reinforcing piece and the sheath material is prevented when an optical unit is bent or stretched in the construction process, the problem that the optical fiber is easy to have large loss or even broken fiber in the construction process is solved, the relative sliding between the metal reinforcing piece and the sheath material is prevented when the optical unit is bent or stretched in the construction process, and the problem that the optical fiber is easy to have large loss or even broken fiber in the construction process is solved;
example 1:
as shown in fig. 3, and with reference to fig. 1 and 2, a flexible optical/electrical hybrid cable for wiring includes a central flexible framework 1 (as shown in fig. 1), and the central flexible framework has a structure that: the upper surface and the lower surface are flat surfaces, and the left side and the right side are concave cambered surfaces; symmetrically placing a group of double-core parallel butterfly cable optical units (as shown in figure 2) at the upper and lower flat surfaces of the central soft framework, and symmetrically placing a group of power lines at the concave cambered surfaces at the left and right sides to form a cable core; the power line consists of a copper conductor 12 and an insulating layer 13 extruded outside the copper conductor 12, and the cross section of the power line is 1.5mm2-6mm2The insulating layer can adopt a crosslinked polyethylene insulating layer or a crosslinked polyolefin insulating layer; the outer arc surface of the power line is attached to the concave arc surface, so that the stable and round structure of the hybrid cable is ensured, and the position sliding phenomenon cannot occur; the cable core is coated with a polyester wrapping band 9, a low-smoke halogen-free flame-retardant polyolefin outer sheath 10 is extruded outside the wrapping band, a tearing rope 11 is arranged in the low-smoke halogen-free flame-retardant polyolefin outer sheath, the breaking tension is strong, the tensile impact performance is strong, and the tensile resistance, acid and alkali resistance, corrosion resistance, strength and other performances of the outer sheath are enhanced.
Example 2:
as shown in fig. 4, and with reference to fig. 1, a flexible hybrid optical/electrical cable for wiring, which is different from embodiment 1, includes: a group of butterfly cable optical units 4 with single structures are symmetrically arranged on the upper and lower flat surfaces of the central soft framework, and filling ropes 14 are arranged in gaps between the upper and lower butterfly cable optical units and two power lines; the butterfly cable optical unit is composed of an optical fiber 5, two metal reinforcing parts 6 which are respectively positioned at two sides of the optical fiber and coated with EAA materials on the surfaces which are transversely parallel to the optical fiber, and a butterfly sheath 7 which is extruded outside the optical fiber and the metal reinforcing parts.
The butterfly cable optical unit structure with the single structure in the embodiment 2 can be used for single-core bidirectional transmission, so that optical fiber resources are saved, while the butterfly cable optical unit structure with the double cores in parallel in the embodiment 1 is usually one-receiving-sending mode, so that the reliability is higher, and the mixed cable with the structure is determined according to the requirements of use occasions;
in order to prevent the optical units from splitting in the cabling and twisting process, brand-new cabling and twisting equipment is adopted, a non-untwisting passive paying-off mode is adopted, the axial direction of a disc tool for bearing the power line and the parallel butterfly cable optical units is arranged in parallel with a winch, the disc tool is different from the axial direction of a traditional winch disc tool and is arranged perpendicular to the winch, the paying-off direction of the power line and the double-core parallel butterfly cable optical units is consistent with the production direction, no steering wheel is arranged in the middle, and splitting caused by steering of the flat double-core parallel butterfly cable optical units is avoided.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the principle of the present invention, and these should also be considered as belonging to the protection scope of the present invention.
Claims (8)
1. The utility model provides a soft mixed cable of photoelectricity for wiring which characterized in that, includes the soft skeleton in center, and this soft skeleton in center's structure is: the upper surface and the lower surface are flat surfaces, and the left side and the right side are concave cambered surfaces; a group of optical units are symmetrically arranged on the upper and lower flat surfaces of the central soft framework, and a group of power lines are closely and symmetrically arranged on the concave cambered surfaces on the left and right sides to form a cable core; the outer arc surface of the power line is attached to the concave arc surface; the cable core is coated with a polyester wrapping tape, a low-smoke halogen-free flame-retardant polyolefin outer sheath is extruded outside the wrapping tape, and a tearing rope is arranged in the low-smoke halogen-free flame-retardant polyolefin outer sheath.
2. The flexible optical/electrical hybrid cable for wiring according to claim 1, wherein: the central soft framework is prepared from polyethylene or low-smoke halogen-free polyolefin.
3. The flexible optical/electrical hybrid cable for wiring according to claim 1, wherein: the power line is composed of a copper conductor and an insulating layer extruded outside the copper conductor, and the cross section of the power line is 1.5mm2-6mm2。
4. The flexible optical/electrical hybrid cable for wiring according to claim 1, wherein: the optical unit is a butterfly cable optical unit which is composed of an optical fiber, two metal reinforcing parts which are respectively arranged at two sides of the optical fiber and coated with EAA materials on the surfaces of the two metal reinforcing parts which are transversely parallel to the optical fiber, and a butterfly sheath which is extruded outside the optical fiber and the metal reinforcing parts.
5. The flexible optical/electrical hybrid cable for wiring according to claim 4, wherein: and a filling rope is arranged in a gap between the butterfly cable optical unit and the power line.
6. The flexible optical/electrical hybrid cable for wiring according to claim 1, wherein: the optical unit is a double-core parallel butterfly cable optical unit which comprises two butterfly cable optical units, each butterfly cable optical unit comprises an optical fiber, two metal reinforcing parts and a butterfly sheath, wherein the two metal reinforcing parts are respectively positioned at two sides of the optical fiber, the surfaces of the two metal reinforcing parts and the optical fiber are coated with an EAA material, and the butterfly sheaths are extruded outside the optical fiber and the metal reinforcing parts; the two butterfly cable optical units are connected together through a connecting rib made of sheath materials identical to the sheath.
7. The flexible optical/electrical hybrid cable for wiring according to claim 4 or 6, wherein: the drawing force between the metal reinforcing piece and the sheath is not less than 40N.
8. The flexible optical/electrical hybrid cable for wiring according to claim 4 or 6, wherein: the sheath is made of low-smoke halogen-free flame-retardant polyolefin material with high-temperature cracking resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922254839.9U CN211208018U (en) | 2019-12-16 | 2019-12-16 | Soft photoelectric hybrid cable for wiring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922254839.9U CN211208018U (en) | 2019-12-16 | 2019-12-16 | Soft photoelectric hybrid cable for wiring |
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| Publication Number | Publication Date |
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| CN211208018U true CN211208018U (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922254839.9U Active CN211208018U (en) | 2019-12-16 | 2019-12-16 | Soft photoelectric hybrid cable for wiring |
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| CN (1) | CN211208018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112596180A (en) * | 2020-12-23 | 2021-04-02 | 江苏永鼎股份有限公司 | Production process and equipment for reinforcing piece continuous coating continuous extrusion butterfly cable and butterfly cable |
-
2019
- 2019-12-16 CN CN201922254839.9U patent/CN211208018U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112596180A (en) * | 2020-12-23 | 2021-04-02 | 江苏永鼎股份有限公司 | Production process and equipment for reinforcing piece continuous coating continuous extrusion butterfly cable and butterfly cable |
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