CN214012600U - Outdoor overhead flexible communication cable - Google Patents
Outdoor overhead flexible communication cable Download PDFInfo
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- CN214012600U CN214012600U CN202022360227.0U CN202022360227U CN214012600U CN 214012600 U CN214012600 U CN 214012600U CN 202022360227 U CN202022360227 U CN 202022360227U CN 214012600 U CN214012600 U CN 214012600U
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Abstract
The utility model relates to an outdoor overhead flexible communication cable, which comprises a cable core and a sheath layer, wherein the cable core is formed by closely arranging a plurality of transmission lines, each transmission line is formed by closely arranging two parallel insulated single lines after being twisted, and each insulated single line is formed by a conductor and an insulating layer; the transmission lines are closely arranged in parallel, and the waterproof layer is coated on the outer side of the transmission lines; and a reinforced tearing rope and a plurality of reinforced tensile pieces which are arranged in parallel with the tearing rope are filled between the waterproof layer and the sheath layer. The utility model arranges the transmission line composed of the insulated single lines which are closely arranged in parallel after being twisted two by two in the waterproof layer composed of the wrapping waterproof polyester film and the water-blocking tape, and has good bending performance and strong moisture resistance; strengthen tensile member and fill and arrange in between waterproof layer and the restrictive coating, increase 16 thighs 1500D high strength low elasticity long fiber yarn and 1 root 5000D transposition type high strength low elasticity long fiber yarn as tensile member in the outside, high temperature influences the electrical properties of inside transmission line when preventing the restrictive coating from extruding.
Description
Technical Field
The utility model relates to a cable manufacture field specifically is an outdoor aerial flexible communication cable that uses.
Background
The existing outdoor overhead communication cable basically adopts an 8-shaped structure, a steel wire with the thickness of about 1.2mm is used as a bearing part, the bearing part and the communication cable extrude out of a sheath, and the high-carbon steel wire is very hard, so that the cable has very poor bending property after being extruded into double-parallel lines, and is difficult to use when meeting a turning joint; in addition, when the PE sheath is used for extruding the communication cable, the electrical performance of the communication cable can be damaged due to high-temperature transmission of the sheath, and particularly, the damage to return loss is large; the general communication cable is lack of waterproof treatment, so the moisture resistance of the cable is poor, and the service life of the cable is greatly reduced when the cable is installed and used outdoors.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an outdoor overhead type flexible communication cable that waits of waiting to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
an outdoor overhead flexible communication cable comprises a cable core and a sheath layer, wherein the cable core is formed by closely arranging a plurality of transmission lines, each transmission line is formed by closely arranging insulated single lines in parallel after being twisted in pairs, and each insulated single line is formed by a conductor and an insulating layer; the transmission lines are closely arranged in parallel, and the waterproof layer is coated on the outer side of the transmission lines; and a reinforced tearing rope and a plurality of reinforced tensile pieces which are arranged in parallel with the tearing rope are filled between the waterproof layer and the sheath layer.
Further, the reinforcing tensile member is composed of 16 strands of 1500D high-strength low-elasticity fiber long yarns and 1 strand of 5000D stranding type high-strength low-elasticity fiber long yarns; the reinforced tensile part selects high-strength low-elasticity fiber long yarns, and the transmission line is uniformly wrapped by the deconcentrator. The reinforced tensile piece effectively isolates the insulating layer structure from being damaged by high temperature of the sheath when the transmission line is extruded, so that the transmission performance is influenced; simultaneously greatly increased cable whole tensile strength, be suitable for built on stilts and use.
Furthermore, the waterproof layer is formed by wrapping a waterproof polyester film and a water-blocking tape, so that the transmission line is protected from being affected by moisture and moisture, and good electrical performance is kept.
Furthermore, the transmission lines are distinguished by multicolor functions, so that effective distinguishing is facilitated during connection and use.
Furthermore, the sheath layer is made of UV-resistant Medium Density Polyethylene (MDPE) sheath materials, and the reinforcing tensile piece is extruded and wrapped in the sheath layer in an extrusion mode. Make and strengthen tensile piece and MDPE sheath zonulae occludens, when guaranteeing cable bulk strength, the tight package structure of extrusion also makes waterproof performance better, and the whole diameter of cable is littleer.
The utility model has the advantages that: the transmission line consisting of the insulated single lines which are closely arranged in parallel after being twisted in pairs is arranged in a waterproof layer consisting of a wrapping waterproof polyester film and a water blocking tape, so that the transmission line has good bending performance and strong moisture resistance; the reinforced tensile member is filled between the waterproof layer and the sheath layer, 16 strands of 1500D high-strength low-elasticity fiber long yarns and 1 strand of 5000D twisted high-strength low-elasticity fiber long yarn are added on the outer side to serve as the tensile member, and the electric performance of the internal transmission line is prevented from being influenced by high temperature when the sheath layer is extruded; meanwhile, the tensile strength exceeds 1400N, the original structure that a steel wire with the diameter of 1.2mm is needed as a hanging piece is replaced, the tensile strength is 3-5 times that of the original steel wire, and the weight is lighter; adopt anti UV's Medium Density Polyethylene (MDPE) sheath material, adopt the extrusion mode with strengthening tensile spare crowded package in the sheath layer, make strengthening tensile spare and restrictive coating closely combine together, keep good performance, improved cable life greatly.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific examples.
Referring to the attached figure 1, the outdoor overhead flexible communication cable comprises a cable core and a sheath layer 6, wherein the cable core is formed by closely arranging a plurality of transmission lines, each transmission line is formed by closely arranging insulated single lines in parallel after being twisted in pairs, and each insulated single line is formed by a conductor 1 and an insulating layer 2; the transmission lines are closely arranged in parallel, and the waterproof layer 3 is coated on the outer side of the transmission lines; and a reinforced tearing rope 4 and a plurality of reinforced tensile pieces 5 which are arranged in parallel with the tearing rope are filled between the waterproof layer and the sheath layer. The reinforced tensile member consists of 16 strands of 1500D high-strength low-elasticity fiber long yarns and 1 strand of 5000D stranded high-strength low-elasticity fiber long yarns. The waterproof layer is formed by wrapping a waterproof polyester film and a water-blocking tape. The transmission lines are distinguished by a multi-color function. And extruding the reinforced tensile part in the sheath layer by adopting an extrusion mode.
The utility model discloses specific embodiment does: the utility model provides an outdoor aerial flexible communication cable that uses, with thickness for a plurality of transmission lines 0.020mm dampproofing polyester film around the one deck, reuse 0.2mm water-blocking tape to wind, carry out abundant dampproofing water repellent treatment to whole cable core. Strengthen tensile for the piece bull yarn pay off rack and directly put, with 16 thigh 1500D's low elasticity high strength fibre long yarn, install the deconcentrator at the extruder front end and wrap up the cable core in the centre uniformly, protect inside cable core can not receive from gravity and both ends construction tensile influence when built on stilts the use, share the pulling force value that receives by fibre long yarn, can guarantee the good transmission performance and the long-term use of cable all the time. In addition, due to the filling of the fiber yarns, the whole flexibility of the cable is very good, the winding, storage and packaging are convenient and fast, the construction and the use are more facilitated, and particularly, the excellent performance of the cable can be more prominent when the cable needs to be bent and laid for use. The restrictive coating chooses anti UV black Medium Density Polyethylene (MDPE) sheath material for use, adopts the crowded package sheath of extruded mode, and crowded package sheath average thickness 0.8mm is the standard value, makes restrictive coating and enhancement tensile member combine closely, keeps the tensile strength of cable, makes the diameter of cable littleer simultaneously, uses the fibre yarn to make the weight that the reinforcement also made the cable lighter.
The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.
Claims (5)
1. The utility model provides an outdoor overhead flexible communication cable, is including cable core and restrictive coating, its characterized in that: the cable core is formed by closely arranging a plurality of transmission lines, each transmission line is formed by closely arranging insulated single lines in parallel after being twisted in pairs, and each insulated single line is formed by a conductor and an insulating layer; the transmission lines are closely arranged in parallel, and the waterproof layer is coated on the outer side of the transmission lines; and a reinforced tearing rope and a plurality of reinforced tensile pieces which are arranged in parallel with the tearing rope are filled between the waterproof layer and the sheath layer.
2. The outdoor flexible communication cable for overhead use of claim 1, wherein: the reinforced tensile member consists of 16 strands of 1500D high-strength low-elasticity fiber long yarns and 1 strand of 5000D stranded high-strength low-elasticity fiber long yarns.
3. The outdoor flexible communication cable for overhead use of claim 2, wherein: the waterproof layer is formed by wrapping a waterproof polyester film and a water-blocking tape.
4. The outdoor flexible communication cable for overhead use of claim 3, wherein: the transmission lines are distinguished by a multi-color function.
5. The outdoor flexible communication cable for overhead use of claim 4, wherein: and extruding the reinforced tensile part in the sheath layer by adopting an extrusion mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022360227.0U CN214012600U (en) | 2020-10-21 | 2020-10-21 | Outdoor overhead flexible communication cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022360227.0U CN214012600U (en) | 2020-10-21 | 2020-10-21 | Outdoor overhead flexible communication cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214012600U true CN214012600U (en) | 2021-08-20 |
Family
ID=77300257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022360227.0U Active CN214012600U (en) | 2020-10-21 | 2020-10-21 | Outdoor overhead flexible communication cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214012600U (en) |
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2020
- 2020-10-21 CN CN202022360227.0U patent/CN214012600U/en active Active
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