CN210514696U - Low-temperature-resistant prefabricated optical cable - Google Patents
Low-temperature-resistant prefabricated optical cable Download PDFInfo
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- CN210514696U CN210514696U CN201920921314.3U CN201920921314U CN210514696U CN 210514696 U CN210514696 U CN 210514696U CN 201920921314 U CN201920921314 U CN 201920921314U CN 210514696 U CN210514696 U CN 210514696U
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- 230000003287 optical effect Effects 0.000 title claims abstract description 89
- 239000000835 fiber Substances 0.000 claims abstract description 33
- 239000013307 optical fiber Substances 0.000 claims abstract description 25
- 230000000903 blocking effect Effects 0.000 claims description 26
- 238000013461 design Methods 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003749 cleanliness Effects 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 12
- 230000037431 insertion Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 230000004927 fusion Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of substation equipment, concretely relates to low temperature resistant prefabricated optical cable. The high-density ferrule is formed by splicing a high-density ferrule plug end C and a high-density ferrule socket end D. The utility model discloses the optical cable adopts flexible armor structure optical cable, and optic fibre adopts banded optic fibre, and fiber connector adopts high fiber module. The optical fiber coupler has the characteristics of simple structure and reasonable design, and can ensure that the optical fiber has small loss dispersion and small loss and the success rate is obviously improved. The utility model discloses having reduced the bend radius of optical cable, having reduced the bending stress of optical cable, excellent it can improve the cold resistance and the performance of optical cable, increase of service life greatly in extremely cold area. The utility model discloses well all optic fibre lock pins and be in the same place, insert the high density lock pin, unified cutting, grinding, all lock pins cross-sectional height, cleanliness highly uniform, the quality discrete rate is extremely low, is difficult for receiving the influence of casing deformation, and optic fibre is continuous portably, low in production cost.
Description
Technical Field
The utility model belongs to the technical field of substation equipment, concretely relates to low temperature resistant prefabricated optical cable.
Background
The traditional transformer substation, the intelligent transformer substation and the modular transformer substation have high requirements on design, production, construction and the like, the optical cable and the cable gradually adopt a factory prefabricated structure, the on-site construction difficulty is greatly reduced, the construction period is shortened, and the plug-and-play prefabricated optical cable is popularized and used in a large area.
Existing designs are for example: patent application No. 201410321727X, filing date: 7/8/2014, name: the utility model provides an exempt from butt fusion bi-polar prefabricated optical cable, this utility model relates to an exempt from butt fusion bi-polar prefabricated optical cable, including optic fibre terminal connector, tail optical fiber and optical cable main push-towing rope, still include optical cable grafting portion and optical cable spliter the optical cable grafting portion is for the first end and the second end that can peg graft, and first end and optic fibre terminal connector are connected, and optic fibre terminal connector and outside light source emitter are connected, and second end and optical cable main push-towing rope are connected, and the one end of optical cable spliter is connected through the second end of optical cable main push-towing rope and optical cable grafting portion, and the other end of optical cable spliter is connected through tail optical fiber and optic fibre terminal connector, and optic fibre. Adopt the utility model discloses a butt fusion bi-polar prefabricated optical cable exempts from passes through optical cable socket end to inserting formula prefabricated optical cable and connects the tail optical fiber, and optical cable plug end connection optical cable main push-towing rope can realize the light signal intercommunication, and convenient and fast need not special equipment during the construction, safe and reliable, this joint can reach IP68 protection level, is fit for indoor outdoor being suitable for.
For another example: patent application No. 2016105392713, filing date: 2016, 7, 1, name: the utility model provides a prefabricated optical cable of branch module type, discloses a prefabricated optical cable of branch module type, includes that module box and branch optical cable wholly constitute, one side is equipped with a plurality of first fixed orificess on the box body, just the panel side of box body is equipped with a plurality of second fixed orificess, and a plurality of prefabricated optical cable of branch type can wear to locate by the spliter first fixed orifices department just is fixed in on the box body, and a plurality of LC adapters wear to locate panel second fixed orifices department, the branch optical cable carries out the shunting in the module box, on the different adapter of shunting to module box panel. The utility model discloses encapsulate the prefabricated branch of optical cable in the module promptly before dispatching from the factory, support the modularization installation of on-the-spot plug-and-play, can switch over as required, and reserve core is accomodate in the module, has reduced the cable that exposes in the rack.
At present, the prefabricated optical cable in the prior art is usually produced in the following way:
(1) optical cable type selection: most of the cables are non-armored cables GYFTZY or armored cables GYFTZY 53;
(2) and (3) packaging the prefabricated optical cable connector, namely, a multi-core separated independent pin independent plugging mode.
As shown in fig. 1-3, fig. 1 is a schematic structural diagram of an existing prefabricated optical cable independent ferrule plug end a, fig. 2 is a schematic structural diagram of an existing prefabricated optical cable independent ferrule socket end B, and fig. 3 is a schematic structural diagram of an existing prefabricated optical cable plug end a and an existing prefabricated optical cable independent ferrule socket end B in an inserted state. In the figure, the independent optical ferrule 21, the ferrule holder 2, the independent optical ferrule pushing spring 23, the pushing spring holder 4, the optical fiber 25 and the ferrule straightening sleeve 26 are shown. In the figure, the push spring retainer 4 is fixed, the independent optical ferrule 21 is a movable part, the independent optical ferrule 21 in fig. 1 is inserted into the ferrule straightening sleeve 26 in fig. 2 and then contacts with the ferrule straightening sleeve 26 in fig. 2, the concentricity of the two independent optical ferrules 21 is adjusted through the ferrule straightening sleeve 26, then the two independent optical ferrules 21 are further compressed, the independent optical ferrules 21 respectively compress the independent optical ferrule push springs 23 backwards and move backwards until the independent optical ferrule push springs 23 reach balance, and the two independent optical ferrules 21 are concentric and tightly contact.
When the optical ferrule straightening device is used, the ferrule of the plug end A is inserted into the ferrule straightening sleeve 26, two contact pins are aligned through the ferrule straightening sleeve 26, the two contact pins are pressed tightly through the independent optical ferrule pushing spring 23, and the two contact pins are butted in the member 26.
The disadvantages of such prior art pre-fabricated cables are the following:
(1) the two types of the unarmored optical cable GYFTZY or the armored optical cable GYFTZY53 have the problems of poor low-temperature resistance, low-temperature brittleness, quick aging and the like of the inner sheath and the outer sheath, and the problems of overlarge bending radius and the like of the optical cable at normal temperature;
(2) inside the optical cable connector, independent ferrules are butted, so that the problems that the occupied space is large, the more the ferrules are, the larger the connector volume is, the larger the insertion loss is and the like exist.
(3) In extremely cold areas, the shell and the internal components are deformed unevenly at low temperature, the independent inserting core is pushed by the elasticity of a single small spring, and the more the number of the cores is, the more the inserting core is easy to block.
SUMMERY OF THE UTILITY MODEL
The utility model provides a low temperature resistant prefabricated optical cable aiming at the defects of the prior art. Its purpose is in order to provide a simple structure, convenient operation's prefabricated optical cable that has stronger cold-resistant performance, stronger performance and increase of service life.
The utility model provides a technical scheme that its technical problem adopted is:
the low-temperature-resistant prefabricated optical cable comprises a high-density ferrule, wherein the high-density ferrule is formed by splicing a high-density ferrule plug end C and a high-density ferrule socket end D.
The high-density inserting core plug end C is characterized in that a high-density inserting core in a shell is connected with a ribbon fiber through an inserting core blocking plate of a front baffle, the ribbon fiber is connected with a pushing spring blocking plate, and the pushing spring blocking plate is connected with the shell; the high-density ferrule propelling spring is sleeved on the ribbon fiber and can move back and forth; the high-density ferrule is connected with a high-density ferrule positioning pin, the high-density ferrule is straightened under the positioning of the high-density ferrule positioning pin, and the high-density ferrules on the two sides of the high-density ferrule plug end C and the high-density ferrule socket end D are tightly pressed under the action of a high-density ferrule propelling spring to form an optical path; after the high-density insertion core is pulled open, the high-density insertion core is pushed to the insertion core blocking plate under the action of the high-density insertion core pushing spring and is pressed on the insertion core blocking plate to restore the original shape.
And two high-density ferrule positioning pins are arranged and are matched with the high-density ferrule positioning holes on the high-density ferrule socket end D in position.
The high-density ferrule in the shell is connected with a ribbon fiber through a front baffle ferrule blocking plate at the high-density ferrule socket end D, the ribbon fiber is connected with a propulsion spring blocking plate, and the propulsion spring blocking plate is fixedly connected with the shell; the high-density ferrule propelling spring is sleeved on the ribbon fiber and moves back and forth; the high-density ferrule is provided with a high-density ferrule positioning hole, the high-density ferrule is aligned under the positioning of the high-density ferrule positioning hole, and the high-density ferrules on the two sides of the high-density ferrule plug end C and the high-density ferrule socket end D are pressed tightly under the action of the high-density ferrule propelling spring to form an optical path; after the high-density insertion core is pulled open, the high-density insertion core is pushed to the insertion core blocking plate under the action of the high-density insertion core pushing spring and is pressed on the insertion core blocking plate to restore the original shape.
And two high-density ferrule positioning holes are formed in the high-density ferrule and are matched with two high-density ferrule positioning pins on the high-density ferrule at the high-density ferrule plug end C in position.
The ribbon fiber is a fiber in the shape of a ribbon.
The high density ferrule is a ferrule that concentrates 2-72 core fiber points on a 2.6x7.2mm plane.
The high-density ferrule positioning pin on the high-density ferrule plug end C is inserted into the high-density ferrule positioning hole on the high-density ferrule plug end D, two high-density ferrule positioning pins passing through the high-density ferrule positioning hole are aligned and pressed, the high-density ferrule push spring moves the high-density ferrule plug end C and the high-density ferrule plug end D backwards and generates uniform and balanced pressure, and therefore two rows of ferrules integrated on the high-density ferrules are aligned and pressed at one time.
The utility model has the advantages of it is following and beneficial effect:
the utility model discloses the optical cable adopts flexible armor structure optical cable, and optic fibre adopts banded optic fibre, and fiber connector adopts high density fiber module. The optical fiber loss dispersion device has the advantages of simple structure, reasonable design, small optical fiber loss dispersion, small loss and remarkable improvement of success rate.
The utility model discloses the application of flexible armor optical cable has reduced the bend radius of optical cable, has reduced the bending stress of optical cable, especially in extremely cold area, and this mode can improve the cold resistance of optical cable greatly, improves optical cable performance, increase of service life. The utility model discloses well all optic fibre lock pins and be in the same place, insert the high density lock pin, unified cutting, grinding, all lock pins cross-sectional height, cleanliness highly uniform, the quality discrete rate is extremely low. The high-density inserting core is positioned through the two positioning needles, and the positioning heights of the two inserting cores are uniform, so that the fiber cores of the optical cables at two ends are aligned one by one. Both ends respectively impel the spring through a owner, impel the high density lock pin, and the dynamics is even, impels unanimously, is difficult for receiving the influence of casing deformation, the utility model discloses it is simple and convenient to have optic fibre to make manufacturing cost obtain the reduction that is showing.
Drawings
To facilitate understanding and implementing the present invention by those of ordinary skill in the art, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, but it should be understood that the scope of the present invention is not limited by the specific embodiments.
FIG. 1 is a schematic structural diagram of an independent plug end A of a prefabricated optical cable;
FIG. 2 is a schematic structural diagram of a conventional prefabricated optical cable independent ferrule socket end B;
FIG. 3 is a schematic diagram of a plug end A and a socket end B of a conventional prefabricated optical cable in an inserted state;
FIG. 4 is a schematic structural view of a high-density ferrule plug end C of the present invention;
fig. 5 is a schematic structural view of a high-density ferrule holder end D of the present invention;
fig. 6 is a schematic diagram of the insertion state of the high-density ferrule plug end C and the high-density ferrule socket end D according to the present invention.
In the figure: the optical fiber module comprises a high-density ferrule 1, a ferrule block 2, a high-density ferrule propelling spring 3, a propelling spring block 4, a ribbon optical fiber 5, a high-density ferrule positioning hole 6, a high-density ferrule positioning pin 7, a high-density ferrule plug end C, a high-density ferrule plug end D, an independent optical ferrule 21, an independent optical ferrule propelling spring 23, an optical fiber 25, a ferrule straightening sleeve 26, a prefabricated optical cable independent ferrule plug end A and a prefabricated optical cable independent ferrule plug end B.
Detailed Description
The utility model relates to a low temperature resistant prefabricated optical cable, as shown in fig. 4-fig. 6, fig. 4 is the utility model discloses high density lock pin plug end C schematic structure, fig. 5 is the utility model discloses high density lock pin socket end D schematic structure, fig. 6 is the utility model discloses high density lock pin plug end C and high density lock pin socket end D insert state schematic structure are also the utility model discloses high density optical fiber structure schematic diagram, including high density lock pin 1, high density lock pin 1 divides to high density lock pin plug end C and high density lock pin socket end D two parts and constitutes.
The high-density inserting core plug end C is characterized in that a high-density inserting core 1 in a shell is connected with a ribbon-shaped optical fiber 5 through an inserting core blocking stop 2 of a front baffle, the ribbon-shaped optical fiber 5 is connected with a pushing spring blocking stop 4, and the pushing spring blocking stop 4 is fixedly connected with the shell; the high-density inserting core pushing spring 3 is sleeved on the ribbon-shaped optical fiber 5 and can move back and forth. The high-density ferrule 1 is connected with two high-density ferrule positioning pins 7, and the number of the high-density ferrule positioning pins 7 is two. The high-density ferrule 1 is aligned under the positioning of the high-density ferrule positioning pin 7, and the high-density ferrules 1 on the two sides of the high-density ferrule plug end C and the high-density ferrule socket end D are pressed tightly under the action of the high-density ferrule propelling spring 3 to form an optical path; after the high-density ferrule is pulled open, the high-density ferrule 1 is pushed to the ferrule stop 2 under the action of the high-density ferrule pushing spring 3 and is pressed on the ferrule stop 2 to restore the original shape.
The high-density ferrule socket end D is characterized in that a high-density ferrule 1 in a shell is connected with a ribbon-shaped optical fiber 5 through a front baffle ferrule blocking stop 2, the ribbon-shaped optical fiber 5 is connected with a pushing spring blocking stop 4, and the pushing spring blocking stop 4 is fixedly connected with the shell; the high-density inserting core pushing spring 3 is sleeved on the ribbon-shaped optical fiber 5 and can move back and forth. Two high-density ferrule positioning holes 6 are arranged on the high-density ferrule 1, and the two high-density ferrule positioning holes 6 are matched with two high-density ferrule positioning pins 7 on the high-density ferrule 1 at the high-density ferrule plug end C in position. The high-density ferrule 1 is aligned under the positioning of the high-density ferrule positioning hole 6, and the high-density ferrules 1 at the two sides of the high-density ferrule plug end C and the high-density ferrule socket end D are pressed tightly under the action of the high-density ferrule propelling spring 3 to form an optical path; after the high-density ferrule is pulled open, the high-density ferrule 1 is pushed to the ferrule stop 2 under the action of the high-density ferrule pushing spring 3 and is pressed on the ferrule stop 2 to restore the original shape.
The utility model relates to a flexible armored optical cable is an optical cable of elasticity stainless steel armor has twined in the overcoat. The ribbon fiber 5 is a fiber in the shape of a ribbon.
The high-density ferrule 1 is a ferrule in which 2-72 core fiber points are concentrated on a 2.6 × 7.2mm plane.
The utility model discloses when using, insert high density lock pin locating pin 7 on high density lock pin plug end C in high density lock pin plug end D on high density lock pin plug end D high density lock pin locating hole 6, two high density lock pin locating pins 7 through high density lock pin locating hole 6 are aligned and compress tightly, high density lock pin impels spring 3 to high density lock pin plug end C and high density lock pin plug end D remove backward and produce unified balanced pressure, thereby disposable aim at and compress tightly two rows of lock pins of integration on high density lock pin 1, make the optical fiber loss discrete little, the loss is little, the success rate is high.
Claims (6)
1. Low temperature resistant prefabricated optical cable, characterized by: the high-density ferrule comprises a high-density ferrule (1), wherein the high-density ferrule (1) is formed by splicing a high-density ferrule plug end C and a high-density ferrule socket end D;
the high-density ferrule plug end C is characterized in that a high-density ferrule (1) in a shell is connected with a ribbon-shaped optical fiber (5) through a front baffle ferrule blocking piece (2), the ribbon-shaped optical fiber (5) is connected with a pushing spring blocking piece (4), and the pushing spring blocking piece (4) is connected with the shell; the high-density ferrule propelling spring (3) is sleeved on the ribbon-shaped optical fiber (5) and can move back and forth; the high-density ferrule (1) is connected with a high-density ferrule positioning pin (7), the high-density ferrule (1) is aligned under the positioning of the high-density ferrule positioning pin (7), and under the action of a high-density ferrule pushing spring (3), the high-density ferrule (1) at the two sides of the high-density ferrule plug end C and the high-density ferrule socket end D are tightly pressed to form an optical path; after the high-density ferrule is pulled open, the high-density ferrule (1) is pushed to the ferrule blocking stop (2) under the action of the high-density ferrule pushing spring (3) and is pressed on the ferrule blocking stop (2) to restore the original shape;
the high-density ferrule socket end D is characterized in that a high-density ferrule (1) in a shell is connected with a ribbon-shaped optical fiber (5) through a front baffle ferrule blocking piece (2), the ribbon-shaped optical fiber (5) is connected with a pushing spring blocking piece (4), and the pushing spring blocking piece (4) is fixedly connected with the shell; the high-density ferrule propelling spring (3) is sleeved on the ribbon-shaped optical fiber (5) and moves back and forth; the high-density ferrule (1) is provided with a high-density ferrule positioning hole (6), the high-density ferrule (1) is aligned under the positioning of the high-density ferrule positioning hole (6), and the high-density ferrules (1) at the two sides of the high-density ferrule plug end C and the high-density ferrule socket end D are tightly pressed under the action of the high-density ferrule push spring (3) to form an optical path; after the high-density ferrule is pulled open, the high-density ferrule (1) is pushed to the ferrule blocking plate (2) under the action of the high-density ferrule pushing spring (3) and is pressed on the ferrule blocking plate (2) to restore to the original shape.
2. The low temperature resistant preformed optical cable of claim 1, wherein: two high-density inserting core positioning pins (7) are arranged and are matched with the high-density inserting core positioning holes (6) in the high-density inserting core socket end D.
3. The low temperature resistant preformed optical cable of claim 1, wherein: the high-density ferrule is characterized in that two high-density ferrule positioning holes (6) are formed in the high-density ferrule (1), and the two high-density ferrule positioning holes (6) are matched with two high-density ferrule positioning pins (7) on the high-density ferrule (1) at the high-density ferrule plug end C in position.
4. The low temperature resistant preformed optical cable of claim 1, wherein: the ribbon fiber (5) is a ribbon-shaped fiber.
5. The low temperature resistant preformed optical cable of claim 1, wherein: the high-density ferrule (1) is a ferrule in which 2-72 core fiber points are concentrated on a 2.6x7.2mm plane.
6. The low temperature resistant preformed optical cable of claim 1, wherein: the high-density ferrule positioning pins (7) on the high-density ferrule plug end C are inserted into the high-density ferrule positioning holes (6) on the high-density ferrule plug end D, the two high-density ferrule positioning pins (7) passing through the high-density ferrule positioning holes (6) are aligned and pressed, the high-density ferrule push springs (3) move the high-density ferrule plug end C and the high-density ferrule plug end D backwards, and the two rows of ferrules integrated on the high-density ferrule (1) are aligned and pressed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018221251234 | 2018-12-18 | ||
| CN201822125123 | 2018-12-18 |
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| CN210514696U true CN210514696U (en) | 2020-05-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426791A (en) * | 2018-12-18 | 2019-11-08 | 国网内蒙古东部电力有限公司经济技术研究院 | Low temperature resistant prefabricated optical cable |
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2019
- 2019-06-19 CN CN201920921314.3U patent/CN210514696U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426791A (en) * | 2018-12-18 | 2019-11-08 | 国网内蒙古东部电力有限公司经济技术研究院 | Low temperature resistant prefabricated optical cable |
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