CN215895986U - Environment-resistant urban communication cable with copper core, polyolefin insulation and aluminum-plastic comprehensive sheath - Google Patents
Environment-resistant urban communication cable with copper core, polyolefin insulation and aluminum-plastic comprehensive sheath Download PDFInfo
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- CN215895986U CN215895986U CN202122059419.2U CN202122059419U CN215895986U CN 215895986 U CN215895986 U CN 215895986U CN 202122059419 U CN202122059419 U CN 202122059419U CN 215895986 U CN215895986 U CN 215895986U
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Abstract
The utility model discloses an environment-resistant urban communication cable with a copper core and a polyolefin insulation aluminum-plastic comprehensive sheath, and relates to the technical field of communication cables. According to the utility model, by arranging the waterproof film, the crosslinked polyethylene insulating layer, the corrugated steel belt and the outer sheath, the problems that the molecular structure of the polyethylene insulating material is changed and deformed, so that the temperature resistance of the communication cable is poor, and the communication cable is easy to damage, so that the cable structure is damaged and the signal transmission is influenced are solved.
Description
Technical Field
The utility model relates to the technical field of communication cables, in particular to an environment-resistant copper core polyolefin insulation aluminum-plastic comprehensive sheath urban communication cable.
Background
In the existing national standard YD/T322-2013, a communication cable is manufactured into an insulated single wire, three insulation materials, namely solid polyolefin, foamed polyolefin or foamed skin polyolefin, are usually adopted for insulation, and polyethylene and molecules of the polyethylene material consist of linear molecules due to an insulation material adopted by a copper-core polyolefin insulated aluminum-plastic comprehensive sheath urban communication cable.
Due to the characteristics of polyethylene, when the temperature rises, the molecular structure of the polyethylene insulating material can change, so that the insulating material can deform, the temperature resistance of the communication cable is poor, and the communication cable is easy to damage, thereby causing the damage of the cable structure and influencing the signal transmission.
SUMMERY OF THE UTILITY MODEL
The utility model provides an environment-resistant urban communication cable with a copper core and a polyolefin insulating aluminum-plastic comprehensive sheath, which has the advantages of excellent insulating property, good heat resistance, strong mechanical environment property and good chemical resistance, and solves the problems that the molecular structure of a polyethylene insulating material can be changed, the insulating material can be deformed, the temperature resistance of the communication cable is poor, the communication cable is easy to damage, the cable structure is damaged, and the signal transmission is influenced.
In order to realize the purposes of excellent insulating property, good heat resistance, strong mechanical environment property and good chemical resistance, the utility model provides the following technical scheme: the utility model provides an environmental-resistant city communication cable with copper core, polyolefin insulation and plastic-aluminum integrated sheath, includes the copper core wire, the surface of copper core wire is provided with the crosslinked polyethylene insulating layer, the surface of crosslinked polyethylene insulating layer is provided with fills the cable paste, the inside of filling the cable paste is provided with overhauls the subassembly, the surface of filling the cable paste is provided with the water proof membrane, the surface of water proof membrane is provided with wire rope through the go-between, wire rope's surface is provided with the shielding area, the surface in shielding area is provided with the inner sheath, the surface of inner sheath is provided with the oversheath through the embossing steel band, the surface spraying of oversheath has the wearing layer.
As a preferable technical scheme of the utility model, the overhaul assembly comprises a protection hose and an optical fiber, the filling cable paste is wrapped on the surface of the protection hose, and the surface of the optical fiber is connected with the inner wall of the protection hose.
As a preferable technical scheme of the utility model, the waterproof film is wound on the surface of the filling cable paste, the waterproof film is wound by two layers, and the main material of the waterproof film is a polyester film.
As a preferable technical scheme of the present invention, the inner wall of the connection ring is connected to the surface of the waterproof membrane, the surface of the connection ring is provided with a limit groove, and the inner wall of the limit groove is connected to the surface of the steel wire rope.
As a preferred technical scheme of the utility model, the shielding belt is wrapped on the surfaces of the steel wire rope and the waterproof film by hot melt adhesive, and the main material of the shielding belt is an aluminum-plastic composite belt.
As a preferable technical scheme of the utility model, the embossed steel strip is wound on the surface of the inner sheath, and the surface of the embossed steel strip is connected with the inner wall of the outer sheath.
As a preferable technical scheme of the utility model, the outer sheath is made of low-smoke halogen-free materials and is formed by extrusion molding through an extruder.
Compared with the prior art, the utility model provides an environment-resistant copper core polyolefin insulation aluminum-plastic comprehensive sheath urban communication cable, which has the following beneficial effects:
1. this environmental-resistant copper core polyolefin insulating plastic-aluminum integrated sheath urban communication cable, through setting up crosslinked polyethylene insulating layer, the water proof membrane, embossing steel band and shielding tape, use crosslinked polyethylene insulating material as crosslinked polyethylene insulating layer, twine the water proof membrane, use the hot melt adhesive to twine the shielding tape on the surface of wire rope and water proof membrane, the inner sheath uses the extruding machine to form, reach radial waterproof effect, then embossing steel band armor, reached and made the cable have good insulating properties, heat resistance is good, mechanical environment performance is strong, the effect that chemical resistance can be good, the molecular structure who has solved polyethylene insulating material can change, can cause the insulating material to take place deformation, the temperature resistance that leads to communication cable is poor, the damage appears easily, thereby cause the cable structure to damage, influence signal transmission's problem.
2. This environmental-resistant copper core polyolefin insulation plastic-aluminum comprehensive sheath urban communication cable, through setting up go-between, spacing groove and wire rope, the go-between is connected on the surface of water proof membrane, carries on wire rope spacing and fixed through the spacing groove, prevents wire rope skew in the follow-up operation, has reached and has been convenient for install wire rope, the even effect of distribution, it is soft to have solved the tensile performance of dragging of cable, leads to the cable probably to be pulled apart the problem.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure of FIG. 1 at A according to the present invention;
FIG. 3 is a schematic view of an attachment ring structure according to the present invention;
FIG. 4 is a front cross-sectional view of the present invention;
FIG. 5 is an enlarged view of the structure of FIG. 4 at B according to the present invention.
In the figure: 1. a copper core wire; 2. a crosslinked polyethylene insulating layer; 3. filling cable paste; 4. overhauling the assembly; 401. a protective hose; 402. an optical fiber; 5. a water-resistant film; 6. a connecting ring; 7. a wire rope; 8. a shielding tape; 9. an inner sheath; 10. embossing the steel strip; 11. an outer sheath; 12. a wear layer; 13. a limiting groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the utility model discloses an environment-resistant urban communication cable with a copper core and a polyolefin insulation aluminum-plastic comprehensive sheath, which comprises a copper core wire 1, wherein a crosslinked polyethylene insulation layer 2 is arranged on the surface of the copper core wire 1, a cable paste 3 is filled on the surface of the crosslinked polyethylene insulation layer 2, an overhaul component 4 is arranged inside the cable paste 3, a waterproof film 5 is arranged on the surface of the cable paste 3, a steel wire rope 7 is arranged on the surface of the waterproof film 5 through a connecting ring 6, a shielding belt 8 is arranged on the surface of the steel wire rope 7, an inner sheath 9 is arranged on the surface of the shielding belt 8, an outer sheath 11 is arranged on the surface of the inner sheath 9 through a corrugated steel belt 10, and a wear-resistant layer 12 is sprayed on the surface of the outer sheath 11.
Specifically, the service module 4 comprises a protective hose 401 and an optical fiber 402, the filling cable paste 3 is wrapped on the surface of the protective hose 401, and the surface of the optical fiber 402 is connected with the inner wall of the protective hose 401.
In this embodiment, the protection hose 401 can play a certain protective role to the optic fibre 402 to in-process using, optic fibre 402 accident damages, brings inconvenience for later maintenance, can judge the damaged point of cable through shining optic fibre 402, is convenient for in time restore.
Specifically, the waterproof film 5 is wound on the surface of the cable paste filling 3, the waterproof film 5 is wound by two layers, and the main material of the waterproof film 5 is a polyester film.
In this embodiment, the main material of the waterproof film 5 is a polyester film, which has the characteristics of water resistance and non-flammability, and the waterproof film is wound on the surface of the cable paste 3 to achieve the longitudinal waterproof effect.
Specifically, the inner wall of the connecting ring 6 is connected with the surface of the waterproof membrane 5, the surface of the connecting ring 6 is provided with a limiting groove 13, and the inner wall of the limiting groove 13 is connected with the surface of the steel wire rope 7.
In this embodiment, go-between 6 cup joints the surface at polyester film, can soften go-between 6 through the hot-blast rifle, makes its surface of closely laminating at the waterproof layer, takes place the skew when preventing follow-up encapsulation, and spacing groove 13 can play spacing and fixed main to wire rope 7, and wire rope 7 can increase the tensile strength of cable to when the pulling force is too big, the cable fracture is avoided.
Specifically, the shielding belt 8 is wrapped on the surfaces of the steel wire rope 7 and the waterproof membrane 5 through hot melt adhesive, and the main material of the shielding belt 8 is an aluminum-plastic composite belt.
In this embodiment, the main material of the shielding tape 8 is an aluminum-plastic composite tape, which has a good shielding effect, prevents external interference signals from disturbing internal transmission signals, and ensures the stability of signal transmission.
Specifically, the embossed steel strip 10 is wound on the surface of the inner sheath 9, and the surface of the embossed steel strip 10 is connected with the inner wall of the outer sheath 11.
In the embodiment, the copper core wires 1 are twisted in pairs according to the process design pitch, and then cabled and stirred to form the cable core, and the corrugated steel strip 10 is armored, so that the corrugated steel strip 10 can protect the internal structure and enhance the radial pressure resistance of the cable.
Specifically, the outer sheath 11 is made of a low-smoke halogen-free material, and the outer sheath 11 is formed by extrusion molding through an extrusion molding machine.
In the embodiment, the outer sheath 11 made of the low-smoke halogen-free material can enable the cable to have the characteristics of high flame retardance and environmental protection, and the service life of the cable can be prolonged.
The working principle and the using process of the utility model are as follows: in the manufacturing process, a cross-linked polyethylene insulating material is used as a cross-linked polyethylene insulating layer 2, a chemical chain bridge is erected among molecules of the insulating material, so that the molecules cannot be displaced, the heat resistance is enhanced, in the insulating and extrusion molding process, a 45-degree plastic extruding machine is firstly used, the cross-linked polyethylene insulating material is used as the cross-linked polyethylene insulating layer 2, the chromatograms (a line: white, red, black, yellow and purple, b line: blue, orange, green, brown and gray) of the corresponding line pair are produced according to the process, the pair twisting is carried out according to the process design, the cabling and twisting are carried out to synthesize a cable core, a waterproof film 5 is wound, a connecting ring 6 is sleeved on the cable core, a steel wire rope 7 is clamped in a limiting groove 13, a shielding belt 8 is wound on the surfaces of the steel wire rope 7 and the waterproof film 5 by using hot melt adhesive, an inner sheath 9 is formed by using the plastic extruding machine to achieve the radial waterproof effect, and then the armoring steel belt 10 is rolled, and finally, encapsulating the outer sheath 11, and spraying a wear-resistant material on the surface of the outer sheath 11 to form a wear-resistant layer 12.
To sum up, this environmental resistant copper core polyolefin insulating plastic-aluminum comprehensive sheath urban communication cable through setting up waterproofing membrane 5, crosslinked polyethylene insulating layer 2, embossing steel band 10 and oversheath 11, has solved polyethylene insulation material's molecular structure and can have changed, can cause insulating material to take place deformation, leads to communication cable's temperature resistance poor, appears damaging easily to cause cable structure to damage, influence signal transmission's problem.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an environment-resistant copper core polyolefin insulation plastic-aluminum integrated sheath urban communication cable, includes copper core wire (1), its characterized in that: the surface of copper core wire (1) is provided with crosslinked polyethylene insulating layer (2), the surface of crosslinked polyethylene insulating layer (2) is provided with fills cable paste (3), the inside of filling cable paste (3) is provided with overhauls subassembly (4), the surface of filling cable paste (3) is provided with water proof membrane (5), the surface of water proof membrane (5) is provided with wire rope (7) through go-between (6), the surface of wire rope (7) is provided with shielding area (8), the surface of shielding area (8) is provided with inner sheath (9), the surface of inner sheath (9) is provided with oversheath (11) through embossing steel band (10), the surface spraying of oversheath (11) has wearing layer (12).
2. The environment-resistant city communication cable with the copper core, the polyolefin insulation aluminum-plastic comprehensive sheath and the environmental-resistant city communication cable according to claim 1, is characterized in that: the overhaul assembly (4) comprises a protective hose (401) and an optical fiber (402), the filling cable paste (3) is wrapped on the surface of the protective hose (401), and the surface of the optical fiber (402) is connected with the inner wall of the protective hose (401).
3. The environment-resistant city communication cable with the copper core, the polyolefin insulation aluminum-plastic comprehensive sheath and the environmental-resistant city communication cable according to claim 1, is characterized in that: the waterproof film (5) is wound on the surface of the filling cable paste (3), the waterproof film (5) is wound by two layers, and the main material of the waterproof film (5) is a polyester film.
4. The environment-resistant city communication cable with the copper core, the polyolefin insulation aluminum-plastic comprehensive sheath and the environmental-resistant city communication cable according to claim 1, is characterized in that: the inner wall of the connecting ring (6) is connected with the surface of the waterproof membrane (5), the surface of the connecting ring (6) is provided with a limiting groove (13), and the inner wall of the limiting groove (13) is connected with the surface of the steel wire rope (7).
5. The environment-resistant city communication cable with the copper core, the polyolefin insulation aluminum-plastic comprehensive sheath and the environmental-resistant city communication cable according to claim 1, is characterized in that: the shielding belt (8) is wrapped on the surfaces of the steel wire rope (7) and the waterproof film (5) through hot melt adhesive, and the main material of the shielding belt (8) is an aluminum-plastic composite belt.
6. The environment-resistant city communication cable with the copper core, the polyolefin insulation aluminum-plastic comprehensive sheath and the environmental-resistant city communication cable according to claim 1, is characterized in that: the corrugated steel strip (10) is wound on the surface of the inner sheath (9), and the surface of the corrugated steel strip (10) is connected with the inner wall of the outer sheath (11).
7. The environment-resistant city communication cable with the copper core, the polyolefin insulation aluminum-plastic comprehensive sheath and the environmental-resistant city communication cable according to claim 1, is characterized in that: the outer sheath (11) is made of a low-smoke halogen-free material, and the outer sheath (11) is formed by extrusion molding through an extruding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122059419.2U CN215895986U (en) | 2021-08-30 | 2021-08-30 | Environment-resistant urban communication cable with copper core, polyolefin insulation and aluminum-plastic comprehensive sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122059419.2U CN215895986U (en) | 2021-08-30 | 2021-08-30 | Environment-resistant urban communication cable with copper core, polyolefin insulation and aluminum-plastic comprehensive sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215895986U true CN215895986U (en) | 2022-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122059419.2U Active CN215895986U (en) | 2021-08-30 | 2021-08-30 | Environment-resistant urban communication cable with copper core, polyolefin insulation and aluminum-plastic comprehensive sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215895986U (en) |
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2021
- 2021-08-30 CN CN202122059419.2U patent/CN215895986U/en active Active
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