CN204740383U - Optical fiber cable for field operation strain insulator gold utensil - Google Patents
Optical fiber cable for field operation strain insulator gold utensil Download PDFInfo
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- CN204740383U CN204740383U CN201520449433.5U CN201520449433U CN204740383U CN 204740383 U CN204740383 U CN 204740383U CN 201520449433 U CN201520449433 U CN 201520449433U CN 204740383 U CN204740383 U CN 204740383U
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- optical fiber
- fiber cable
- field operation
- strain insulator
- fixed head
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Abstract
The utility model discloses an optical fiber cable for field operation strain insulator gold utensil, including strain insulator ring, fixed plate and the guard plate that is used for twining optical fiber cable for field operation to and be used for connecting the tow lug of tensioning pole. Fixed plate and guard plate set up relatively, and all with strain insulator ring swing joint and the strain insulator encircle between formation be used for restricting the spacing chamber that optical fiber cable for field operation scatters, be equipped with the tow lug on the fixed plate. Above -mentioned optical fiber cable for field operation strain insulator gold utensil twines optical fiber cable for field operation on the strain insulator ring after opening fixed plate and guard plate, then closes fixed plate and guard plate and restrict optical fiber cable for field operation and prevent in spacing chamber that optical fiber cable for field operation from scattering. Because of strain insulator ring sum tow lug bears the erection stress, make the interior reinforced materials of the winding optical fiber cable for field operation of many circles play and bear tensile effect, and the tension that the sheath receives is less, can avoid the damage of optical fiber cable for field operation sheath and cable core. Above -mentioned optical fiber cable for field operation strain insulator gold utensil, simple structure, it is convenient to be under construction, can prevent that optical fiber cable for field operation from erectting the damage of in -process.
Description
Technical field
The utility model relates to optical cable installation field, particularly relates to a kind of optical fiber cable for field operation strain hardware fitting.
Background technology
Owing to needing quickly retracting, the laying of optical fiber cable for field operation is generally ground and lays, and also can bury underground by shallow ridges, and does not need special gold utensil.But some specific occasion such as Midspan sag, river or the crowd is dense occasion in actual laying, built on stilts optical cable of can avoiding suitable when laying is destroyed.Now general recommendations uses hook to hang over by built on stilts in bracing cable, namely first between two nutted rods, lays steel strand wires, then hook or binding strap is fixed on steel strand wires by optical fiber cable for field operation.But lay steel strand wires also to waste time and energy very much, not only cost is large, and efficiency is low.
General cable strain hardware fitting (the falcon shape tension-type strain hardware fitting as conventional) relies on the stress suffered by sheath and is made it to bear tension force by the metal material (copper or aluminium) that this part stress passes to rigidity by friction force.But for optical fiber cable for field operation, if use common cable strain hardware fitting, because reinforcing material is generally high-modulus aramid fiber (as Kevlar fiber), very soft, sheath material is also soft elastic body simultaneously, so the stress that elastic body jacket bears can not rely on friction force to pass to reinforcing material, optical fiber cable for field operation can make sheath and optic fibre core suffer serious damage because of the layering between sheath and reinforcing material.When built on stilts span is larger, this phenomenon is more serious.
Utility model content
Based on this, be necessary that the cable strain hardware fitting for traditional easily damages the problem of optical fiber cable for field operation, a kind of optical fiber cable for field operation strain hardware fitting is provided.
The utility model provides a kind of optical fiber cable for field operation strain hardware fitting, comprise fixed head, protective shield, for being wound around the strain insulator ring of optical fiber cable for field operation and the bail for connecting optical cable mounting rod; Fixed head and protective shield are oppositely arranged, and equal flexible connection with strain insulator ring also and between strain insulator ring forms the limit chamber be scattered for limiting optical fiber cable for field operation, and bail is arranged on fixed head.
Further, strain insulator ring both sides are equipped with bolt, and fixed head and protective shield all to be coordinated with bolt by hold-down nut and be flexibly connected with strain insulator ring.
Further, bolt is provided with isolation nut, and fixed head and protective shield are all resisted against on isolation nut, arrange formation limit chamber with strain insulator central spacer.
Further, fixed head and protective shield include movable be connected to bolt flexible connection end and be rotationally connected with bolt be rotationally connected end, the flexible connection end of fixed head and the flexible connection end of protective shield are positioned at strain insulator ring same side.
Further, bail is positioned in the middle part of fixed head and is partial on flexible connection end position.
Further, inside fixed head, the nearly end that is flexibly connected is provided with flexible limit block, is provided with cushion pad inside protective shield.
Further, strain insulator ring is cylindrical structure, and the diameter of strain insulator ring is 15 ~ 20 times of optical fiber cable for field operation diameter.
Above-mentioned a kind of optical fiber cable for field operation strain hardware fitting, can by optical fiber cable for field operation multiple-turns wound on strain insulator ring after opening fixed head and protective shield, then optical fiber cable for field operation is limited in limit chamber and prevents optical fiber cable for field operation to be scattered by closedown fixed head and protective shield, and make the reinforcing material in the optical fiber cable for field operation of multiple-turns wound play the effect of bearing tension force, and tension force suffered by sheath is less, the damage of optical fiber cable for field operation sheath or cable core can be avoided.Above-mentioned a kind of optical fiber cable for field operation strain hardware fitting, structure is simple, constructs convenient, can prevent the damage of optical fiber cable for field operation in erection process.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of optical fiber cable for field operation strain hardware fitting of an embodiment;
Fig. 2 is another viewing angle constructions schematic diagram of a kind of optical fiber cable for field operation strain hardware fitting of an embodiment.
Description of reference numerals: 100, strain insulator ring; 200, fixed head; 300, protective shield; 400, limit chamber; 500, bolt; 210, bail; 220, flexible limit block; 310, cushion pad; 510, nut is isolated; 520, hold-down nut.
Embodiment
The utility model provides a kind of optical fiber cable for field operation strain hardware fitting, sees figures.1.and.2, comprise fixed head 200, protective shield 300, for being wound around the strain insulator ring 100 of optical fiber cable for field operation and the bail 210 for connecting optical cable mounting rod; Fixed head 200 and protective shield 300 are oppositely arranged, and equal flexible connection with strain insulator ring 100 also and between strain insulator ring 100 forms the limit chamber 400 be scattered for limiting optical fiber cable for field operation, and bail 210 is arranged on fixed head 200.
Fixed head 200 and protective shield 300 are oppositely arranged on strain insulator ring 100, are all flexibly connected with strain insulator ring 100, and fixed head 200 and protective shield 300 comprise latched position and open site.During unlatching, optical fiber cable for field operation can directly be wrapped on strain insulator ring 100, after winding, can by fixed head 200 and protective shield 300 sealed, avoid optical fiber cable for field operation loose.Above-mentioned a kind of optical fiber cable for field operation strain hardware fitting, can by optical fiber cable for field operation multiple-turns wound on strain insulator ring 100 after opening fixed head 200 and protective shield 300, then optical fiber cable for field operation is limited in limit chamber 400 and prevents optical fiber cable for field operation to be scattered by closedown fixed head 200 and protective shield 300, and make the reinforcing material in the optical fiber cable for field operation of multiple-turns wound play the effect of bearing tension force, and tension force suffered by sheath is less, the damage of optical fiber cable for field operation sheath or cable core can be avoided.Above-mentioned a kind of optical fiber cable for field operation strain hardware fitting, structure is simple, constructs convenient, can prevent the damage of optical fiber cable for field operation in erection process.
Further, see figures.1.and.2, strain insulator ring 100 two ends are equipped with bolt 500, and fixed head 200 and protective shield 300 all to be coordinated with bolt 500 by hold-down nut 520 and be flexibly connected with strain insulator ring 100.
Bolt 500 can be welded on fastening on strain insulator ring 100, by mounting nuts or other fixed forms and be fixed on strain insulator ring 100.By tightening or unscrewing the sealed or unlatching that hold-down nut 520 realizes fixed head 200 and protective shield 300, sealed convenient with unlatching.More excellent, hold-down nut 520 is wing nut, without the need to can tightening or unscrew by associated spanner, uses more convenient.
Further, see figures.1.and.2, bolt 500 is provided with isolation nut 510, and fixed head 200 and protective shield 300 are all resisted against on isolation nut 510, and strain insulator ring 100 interval arranges and forms limit chamber 400.
When bolt 500 with strain insulator ring 100 for being fixedly connected with time, isolation nut 510 for against fixed head 200 and protective shield 300, to form limit chamber 400.When bolt 500 with strain insulator ring 100 for being flexibly connected time, isolation nut 510, except above-mentioned effect, also can have the effect be fixed on by bolt 500 on strain insulator ring 100, without the need to separately establishing mounting nuts.Above-mentioned design can make a kind of optical fiber cable for field operation strain hardware fitting simple and compact for structure.
Further, see figures.1.and.2, fixed head 200 and protective shield 300 include movable be connected to bolt 500 flexible connection end and be rotationally connected with bolt 500 be rotationally connected end, the flexible connection end of fixed head 200 and the flexible connection end of protective shield 300 are positioned at strain insulator ring 100 same side.
The flexible connection end of fixed head 200 and the flexible connection end of protective shield 300 are positioned at strain insulator ring 100 same side.If the flexible connection end of the flexible connection end of fixed head 200 and protective shield 300 is positioned at strain insulator ring 100 difference end, often all can be interfered around a circle during multiple-turns wound optical fiber cable for field operation, very inconvenience.
For ease of illustrating, end will be rotationally connected and be defined as a end, and be flexibly connected end and be defined as b end.Fixed head 200 and protective shield 300 are equipped with closed circular hole at a end, its bolt 500 around a end can be made to rotate formation and be rotationally connected end.Fixed head 200 and protective shield 300 are equipped with corresponding opening (semi-enclosed circular hole) at b end, rotate fixed head 200 and protective shield 300, fixed, formed and be flexibly connected end after its opening can be made to snap in the bolt 500 of b end by hold-down nut 520.Unclamp hold-down nut 520, rotation fixed head 200 and protective shield 300 can be opened.This hardware fitting structure is simple, easy to use.
Further, bail 210 is positioned in the middle part of fixed head 200 and is partial on flexible connection end position.The axis of bail 210 not on the center of fixed head 200, but is biased to flexible connection end, and namely bail 210 is positioned at the position of being partial to b end in the middle part of fixed head 200.This design can ensure that optical fiber cable for field operation is wound around from being rotationally connected end inlet wire, after multiple-turns wound, the leading-out terminal axis of optical fiber cable for field operation should overlap as far as possible with the axis of closing rear haulage ring, can automatically keep straight and can not tilt or overturn, to ensure the safety that optical fiber cable for field operation sets up after making whole a kind of optical fiber cable for field operation strain hardware fitting stressed.
Further, see figures.1.and.2, inside fixed head 200, the nearly end that is flexibly connected is provided with flexible limit block 220, is provided with cushion pad 310 inside protective shield 300.Flexible limit block 220 and cushion pad 310 farthest can protect the sheath of optical fiber cable for field operation, avoid its impaired under large stress.
Further, see figures.1.and.2, strain insulator ring 100 is cylindrical structure, and the diameter of strain insulator ring 100 is 15 ~ 20 times of optical fiber cable for field operation diameter.The diameter of strain insulator ring 100 can be arranged according to the core number of distribution type optical fiber cable for field operation and diameter.According to ordinary optic fibre (as G.652 single-mode fiber), the diameter of strain insulator ring 100 is about 15 ~ 20 times of optical fiber cable for field operation diameter; According to bend insensitive fiber (as G.657 single-mode fiber), the diameter of strain insulator ring 100 can be less.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (7)
1. an optical fiber cable for field operation strain hardware fitting, is characterized in that, comprise fixed head, protective shield, for being wound around the strain insulator ring of optical fiber cable for field operation and the bail for connecting optical cable mounting rod; Described fixed head and described protective shield are oppositely arranged, and equal and described strain insulator ring be flexibly connected and and described strain insulator ring between form the limit chamber be scattered for limiting described optical fiber cable for field operation, described bail is arranged on described fixed head.
2. a kind of optical fiber cable for field operation strain hardware fitting according to claim 1, is characterized in that, described strain insulator ring both sides are equipped with bolt, and described fixed head and described protective shield are all coordinated by hold-down nut and described bolt and be flexibly connected with described strain insulator ring.
3. a kind of optical fiber cable for field operation strain hardware fitting according to claim 2, it is characterized in that, described bolt is provided with isolation nut, and described fixed head and described protective shield are all resisted against on described isolation nut, arranges form described limit chamber with described strain insulator central spacer.
4. a kind of optical fiber cable for field operation strain hardware fitting according to claim 2, it is characterized in that, described fixed head and described protective shield include movable be connected to described bolt flexible connection end and be rotationally connected with described bolt be rotationally connected end, the flexible connection end of described fixed head and the flexible connection end of described protective shield are positioned at described strain insulator ring same side.
5. a kind of optical fiber cable for field operation strain hardware fitting according to claim 4, is characterized in that, described bail is positioned in the middle part of described fixed head is partial on described flexible connection end position.
6. a kind of optical fiber cable for field operation strain hardware fitting according to claim 4, is characterized in that, inside described fixed head, the nearly end that is flexibly connected is provided with flexible limit block, is provided with cushion pad inside described protective shield.
7. a kind of optical fiber cable for field operation strain hardware fitting according to any one of claim 1 ~ 6, described strain insulator ring is cylindrical structure, and the diameter of described strain insulator ring is 15 ~ 20 times of described optical fiber cable for field operation diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520449433.5U CN204740383U (en) | 2015-06-29 | 2015-06-29 | Optical fiber cable for field operation strain insulator gold utensil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520449433.5U CN204740383U (en) | 2015-06-29 | 2015-06-29 | Optical fiber cable for field operation strain insulator gold utensil |
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| Publication Number | Publication Date |
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| CN204740383U true CN204740383U (en) | 2015-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520449433.5U Active CN204740383U (en) | 2015-06-29 | 2015-06-29 | Optical fiber cable for field operation strain insulator gold utensil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932075A (en) * | 2015-06-29 | 2015-09-23 | 广州关键光电子技术有限公司 | Field operation optical cable tension fitting and erecting method of field operation optical cable |
-
2015
- 2015-06-29 CN CN201520449433.5U patent/CN204740383U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932075A (en) * | 2015-06-29 | 2015-09-23 | 广州关键光电子技术有限公司 | Field operation optical cable tension fitting and erecting method of field operation optical cable |
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