CN211786273U - Expansion type weather-resistant rural household lead-in optical cable - Google Patents
Expansion type weather-resistant rural household lead-in optical cable Download PDFInfo
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- CN211786273U CN211786273U CN202020690533.8U CN202020690533U CN211786273U CN 211786273 U CN211786273 U CN 211786273U CN 202020690533 U CN202020690533 U CN 202020690533U CN 211786273 U CN211786273 U CN 211786273U
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- Prior art keywords
- optical cable
- sheath
- cable
- optical
- optical fiber
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- 230000003287 optical effect Effects 0.000 title claims abstract description 65
- 239000013307 optical fiber Substances 0.000 claims abstract description 32
- 239000000725 suspension Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims abstract description 12
- 230000002787 reinforcement Effects 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000000779 smoke Substances 0.000 claims description 7
- 239000003063 flame retardant Substances 0.000 claims description 5
- 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 3
- 238000010276 construction Methods 0.000 abstract description 11
- 230000002950 deficient Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 description 6
- 238000005253 cladding Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 1
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Abstract
The utility model discloses a dilatation type weatherability rural drop optical cable that enters home, the optical cable is 8 font structures, including suspension wire part (12), optical cable part (13) and suspender (4), suspension wire part (12) include that the metal is from bearing part (1) and first oversheath (2), optical cable part (13) are oval, and the optical cable part includes second oversheath (3), water blocking tape (5) and dish cable (11), dish cable (11) are including inner sheath (6), optical fiber ribbon (7), first reinforcement (8) and second reinforcement (9), optical fiber ribbon (7) set up at inner sheath (6) middle part, be equipped with 4 optical cable cores (10) that link to each other side by side in optical fiber ribbon (7). The utility model has the advantages that: under the rural conditions of severe environment and deficient pole line, the optical fiber capacity can be increased, the introduction of the optical cable with large span is realized, the performance of the introduced optical cable is ensured, a reliable broadband network is provided, and the construction cost of the rural broadband network is effectively reduced.
Description
Technical Field
The utility model relates to a communication optical cable technical field, especially a dilatation type weatherability rural house-entry drop optical cable.
Background
The broadband network is a key infrastructure for economic and social development in the information era, is an important driving force for accelerating the change of economic development modes, and is a key element for improving national competitiveness. The method accelerates the construction pace of the broadband network, and has important significance for comprehensively improving the informatization level of the country. On the national scale, FTTH is a trend of broadband development, city coverage is basically completed at present, and rural FTTH construction is continuously developed.
However, the rural home-entry optical cable laying environment is faced with the problems of large span, large height drop, high construction laying cost and the like, and has higher requirements on tensile strength, environmental resistance and optical fiber capacity of the home-entry optical cable. The existing tensile home-entry optical cable generally has 1-2 cores and lower capacity, while the common 4-core butterfly-shaped optical cable has enough optical fiber capacity but does not meet the tensile property of long span. Therefore, the problems of high construction cost, poor optical cable communication quality and the like can occur when the existing home-entry optical cable is applied to rural home-entry scenes.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a dilatation type weatherability rural house-entry drop cable, under the abominable and rod way deficient rural condition of environment, can increase optical fiber capacity, realize that the optical cable big span is introduced, guarantee the performance of drop cable simultaneously to provide reliable broadband network and effectively reduce rural broadband network's construction cost.
The purpose of the utility model is realized through the following technical scheme: an expansion-type weather-resistant rural house-entry drop optical cable is of an 8-shaped structure and comprises a suspension wire part, an optical cable part and a suspension strap, wherein the suspension wire part is circular, the optical cable part is oval, the suspension wire part comprises a metal self-supporting part and a first outer sheath, the optical cable part comprises a second outer sheath, a water blocking tape and a disc cable, the suspension strap is connected between the first outer sheath and the second outer sheath, the first outer sheath is wrapped on the outer surface of the metal self-supporting part, the second outer sheath is wrapped on the outer surface of the water blocking tape, the disc cable is arranged inside the water blocking tape, the disc cable comprises an inner sheath, an optical fiber ribbon, a first reinforcing part and a second reinforcing part, the inner sheath is wrapped on the optical fiber ribbon, the first reinforcing part is arranged on the upper portion of the inner sheath, the second reinforcing part is arranged on the lower portion of the inner sheath, the optical fiber ribbon is arranged in the middle of the inner sheath, and a plurality of optical cable cores which are connected side by side are arranged in the optical fiber ribbon.
Preferably, the first outer sheath and the second outer sheath are made of PE materials with extremely strong weather resistance.
Preferably, the left side and the right side of the inner sheath are of concave arc structures, and the upper side and the lower side of the inner sheath are of arc structures.
Preferably, the inner sheath is made of low-smoke halogen-free flame-retardant sheath material.
Preferably, the metal self-supporting piece is made of high-strength carbonized steel wires.
Preferably, the optimal number of the optical cable cores is 4.
The utility model has the advantages of it is following:
the optical cable adopts an 8-shaped self-supporting structure, high-strength phosphated steel wires are used as reinforcing parts, the introduction of the home-entering optical cable with large span can be realized, the maximum span can reach 200 meters, and steel stranded wires do not need to be erected, so that the construction and laying cost is saved; the 4-core optical fiber ribbon is used for expanding the number of optical cable cores, so that a multi-core home-entry requirement scene is met, and the material cost and the construction laying cost of the optical cable can be saved compared with those of a 1-2-core home-entry optical cable; the low-shrinkage binding yarns and the high-strength steel wire reinforcing pieces are adopted to eliminate the influence of the binding yarn shrinkage and the subunit sheath material softening caused by high temperature on extrusion force of the optical fiber belt and ensure that all performance indexes of the optical fiber are qualified; the outer sheath is made of PE materials, the inner sheath is made of low-smoke halogen-free flame retardant materials, the flame retardant property of the indoor optical cable can be met, ultraviolet radiation in the environment can be effectively absorbed, the weather resistance of the optical cable is enhanced, and the inner butterfly cable is fully protected; the optical cable part is designed in an oval shape to match with the flat butterfly cable subunit, so that the effects of uniform wall thickness of the optical cable and saving of material cost of the sheath can be achieved. Under the rural conditions of severe environment and deficient pole line, the optical fiber capacity can be increased, the introduction of the optical cable with large span can be realized, and the performance of the introduced optical cable can be ensured, so that a reliable broadband network is provided, and the construction cost of the rural broadband network is effectively reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1-a metal self-supporting element, 2-a first outer jacket, 3-a second outer jacket, 4-a sling, 5-a water blocking tape, 6-an inner jacket, 7-a light fiber tape, 8-a first reinforcing element, 9-a second reinforcing element, 10-a cable core, 11-a disc, 12-a suspension wire part and 13-a cable part.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.
As shown in figure 1, the expansion type weather-resistant rural home-entry optical cable is of an 8-shaped structure and comprises a suspension wire part 12, an optical cable part 13 and a suspension strap 4, the optical cable is of an 8-shaped self-supporting structure, high-strength phosphated steel wires are used as reinforcing parts, large-span introduction of the home-entry optical cable can be achieved, steel stranded wires do not need to be erected, and construction and laying cost is saved.
The suspension wire part 12 is circular, the optical cable part 13 is oval, the oval design of the optical cable part can be matched with a flat butterfly cable subunit, the wall thickness of the optical cable can be uniform, and the material cost of a sheath is saved.
The suspension wire part 12 comprises a metal self-supporting part 1 and a first outer sheath 2, the optical cable part 13 comprises a second outer sheath 3, a water blocking tape 5 and a disc cable 11, and the first outer sheath 2 and the second outer sheath 3 both adopt PE materials as sheath materials, so that ultraviolet radiation in the environment can be effectively absorbed, and the weather resistance of the optical cable is enhanced.
The metal is from taking part 1 and adopting the high strength carbonization steel wire, suspender 4 is connected between first oversheath 2 and second oversheath 3, first oversheath 2 cladding is in metal is from taking part 1 surface, the cladding of second oversheath 3 is in the surface of water blocking tape 5, dish cable 11 sets up inside water blocking tape 5, dish cable 11 includes inner sheath 6, optic fibre strip 7, first reinforcement 8 and second reinforcement 9, the both sides are the arc structure of indent about inner sheath 6, and upper and lower both sides are the circular arc structure, inner sheath 6 adopts the fire-retardant sheath material of low smoke and zero halogen, can satisfy indoor optical cable fire behavior, fully protects inside butterfly cable.
The utility model discloses a preparation mode as follows:
the first step is as follows: coloring the optical fiber so as to identify the fiber sequence of the optical fiber when the optical fiber is spliced, terminated and used;
the second step is that: manufacturing a multi-core optical fiber ribbon by using an optical fiber ribbon combining machine;
the third step: the butterfly cable subunit is extruded and coated by low-smoke halogen-free sheathing material in an extrusion molding mode, the butterfly cable subunit comprises an optical fiber ribbon, a first reinforcing piece and a second reinforcing piece, when the butterfly cable subunit is extruded and coated by the low-smoke halogen-free sheathing material in the extrusion molding mode, the size deviation of the butterfly cable subunit needs to be strictly controlled so as to ensure that the butterfly cable subunit can be well corrected to enter a mold position when the butterfly cable subunit is cabled, the butterfly cable subunit can be completely wrapped by a water blocking tape, the paying-off tension of the optical fiber ribbon and the paying-off tension of a reinforcing piece steel wire are strictly controlled so as to ensure that indexes such as attenuation and tensile properties of the subunit are qualified, and after the;
the fourth step: the water-blocking tape is used for wrapping the disc cable to form a cable, low-shrinkage yarn binding is needed, the yarn binding tension range needs to be strictly controlled, the performance of an optical fiber ribbon is affected by extruding an internal optical fiber ribbon when the yarn binding is shrunk due to overlarge yarn binding tension, the water-blocking tape is poor in wrapping and large in gap between the water-blocking tape and a subunit, and the water seepage problem of the optical cable is caused due to the fact that the yarn binding tension is too small;
the fifth step: PE material extrusion cladding needs strict control steel wire unwrapping wire tension range to guarantee optical cable tensile property. The upper limit of the extrusion temperature of the PE material is strictly controlled, otherwise excessive shrinkage of the bundled yarns and softening of the subunit low-smoke halogen-free sheathing material can be caused, and the problems of overproof attenuation of the optical fiber ribbon, step appearance, poor curve and the like can be caused. The angle of the cable core entering the extrusion molding die is parallel to the long axis direction of the optical cable and has no swing, so that the stable and controllable sizes of the optical cable part and the hanging strip part are ensured.
Claims (5)
1. The utility model provides a rural house-entry leading-in optical cable of dilatation type weatherability which characterized in that: the optical cable is of an 8-shaped structure and comprises a suspension wire part (12), an optical cable part (13) and a hanging strip (4), wherein the optical cable part (13) is oval, the suspension wire part (12) comprises a metal self-supporting part (1) and a first outer sheath (2), the optical cable part (13) comprises a second outer sheath (3), a water blocking tape (5) and a disc cable (11), the hanging strip (4) is connected between the first outer sheath (2) and the second outer sheath (3), the first outer sheath (2) covers the outer surface of the metal self-supporting part (1), the second outer sheath (3) covers the outer surface of the water blocking tape (5), the disc cable (11) is arranged inside the water blocking tape (5), the disc cable (11) comprises an inner sheath (6), an optical fiber ribbon (7), a first reinforcing part (8) and a second reinforcing part (9), and the inner sheath (6) covers the optical ribbon (7), First reinforcement (8) and second reinforcement (9), sheath (6) upper portion including first reinforcement (8) set up, sheath (6) lower part including second reinforcement (9) set up, sheath (6) middle part including optical fiber ribbon (7) set up, be equipped with many optical cable cores (10) that link to each other side by side in optical fiber ribbon (7).
2. The expansion type weather-resistant rural home-entry optical cable according to claim 1, characterized in that: the first outer sheath (2) and the second outer sheath (3) both adopt PE materials as sheath materials.
3. The expansion type weather-resistant rural home-entry optical cable according to claim 1, characterized in that: the left side and the right side of the inner sheath (6) are of concave arc structures, and the upper side and the lower side of the inner sheath are of arc structures.
4. The expansion type weather-resistant rural home-entry optical cable according to claim 3, characterized in that: the inner sheath (6) is made of low-smoke halogen-free flame-retardant sheath material.
5. The expansion type weather-resistant rural home-entry optical cable according to claim 1, characterized in that: the metal self-supporting piece (1) adopts high-strength carbonized steel wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020690533.8U CN211786273U (en) | 2020-04-29 | 2020-04-29 | Expansion type weather-resistant rural household lead-in optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020690533.8U CN211786273U (en) | 2020-04-29 | 2020-04-29 | Expansion type weather-resistant rural household lead-in optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211786273U true CN211786273U (en) | 2020-10-27 |
Family
ID=72958027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020690533.8U Withdrawn - After Issue CN211786273U (en) | 2020-04-29 | 2020-04-29 | Expansion type weather-resistant rural household lead-in optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211786273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111399147A (en) * | 2020-04-29 | 2020-07-10 | 成都亨通光通信有限公司 | Expansion type weather-resistant rural household lead-in optical cable |
-
2020
- 2020-04-29 CN CN202020690533.8U patent/CN211786273U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111399147A (en) * | 2020-04-29 | 2020-07-10 | 成都亨通光通信有限公司 | Expansion type weather-resistant rural household lead-in optical cable |
| CN111399147B (en) * | 2020-04-29 | 2024-07-26 | 成都亨通光通信有限公司 | Capacity-expansion weather-resistant rural household lead-in optical cable |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20201027 Effective date of abandoning: 20240726 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20201027 Effective date of abandoning: 20240726 |