CN203688870U - Fiber continuing protective box - Google Patents
Fiber continuing protective box Download PDFInfo
- Publication number
- CN203688870U CN203688870U CN201420016488.2U CN201420016488U CN203688870U CN 203688870 U CN203688870 U CN 203688870U CN 201420016488 U CN201420016488 U CN 201420016488U CN 203688870 U CN203688870 U CN 203688870U
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- Prior art keywords
- box
- optical fiber
- sealing
- groove
- sealing strip
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Abstract
The utility model discloses a cable continuing terminal protective device and aims to provide a cable continuing terminal protective device having good cooperation and low precision requirements, and ensuring sealing effects under the conditions of pressure bearing and heating. The device comprises an upper half box and a lower half box. The upper half box and the lower half box are connected to form an integrated box body. Each of the two ends of the box body is provided with two fiber hole frames. Each fiber hole frame comprises an outer part and an inner part. Each outer part is provided with a fiber inlet sleeve. Each inner part is formed by a semi-hole groove on the lower half box and a semi-hole groove on the upper half box. The semi-hole grooves are provided with corresponding elastic clamp sleeves. The upper half box and the lower half box are both provided with sealing grooves and sealing strips. The cross section of the sealing strips is a trapezoid with an outward long bottom edge. An elastic sealing pressure element is connected to the upper half box through a screw. The fiber inlet sleeve comprises an upper half sleeve and a lower half sleeve. The upper half sleeve is provided with a plurality of connecting plugs inserted into plug-in holes of the sealing pressure element. The beneficial effects are that the device effectively protects cable continuing terminals, good in sealing performance, and high in integral intensity, and enables the butt joint parts of the sealing rings to be not easy to shift.
Description
Technical field
The utility model belongs to lightguide cable link technical field, relates in particular to a kind of optical fiber connection protecting box.
Background technology
Optical fiber connection protecting box, claims to be again optical cable connecting box, belongs to mechanical pressure sealing adaptor system, is between adjacent optical cable, to provide optics, sealing and physical strength the successional end protective device that continues.The straight-through of system of laying such as built on stilts, pipeline, direct-burried that is mainly applicable to various structure optical cables is connected with branch.As the current conventional one end protective device that continues; optical fiber connection protecting box is widely used; existing optical fiber connection protecting box; generally formed by two and half boxes; O-ring seal is set therebetween; end arranges optical cable inlet wire or wire hole, in order to realize sealing, pressure-bearing anti-impact and optical cable turnover, continue.But; in the hermetically-sealed construction of existing optical fiber connection protecting box; the quality of fit of O-ring seal and seal groove is had relatively high expectations; in the time being subject to external pressure, easily there is lateral deviation and cause structure shakiness, partially sealed inefficacy in O-ring seal, moreover; when optical fiber connection protecting box pressure-bearing, while being heated; softening and the compressive deformation of O-ring seal, easily occurs that overflow part, breakage, affects sealing.
Utility model content
The utility model is to adopt common hermetically-sealed construction in order to overcome optical fiber connection protecting box in prior art; when pressure-bearing is large, be heated when larger; the situation such as be prone to O-ring seal shakiness, be shifted, overflow; cause the affected deficiency of sealing effectiveness; a kind of no-float is provided; accuracy requirement is low, can change optical cable turnover quantity and not affect basic sealing, pressure-bearing the protection box that also can ensure sealing effectiveness while being heated.
To achieve these goals, the utility model is by the following technical solutions:
A kind of optical fiber connection protecting box, comprise first box, second box, between first described box and second box, be connected by screw into a box body, described box body two ends are respectively equipped with at least two optic fibre hole framves, described optic fibre hole frame comprises outer section, inner segment, envelope casting die on the described outer section of semi-cylindrical groove by second box end and first box forms, in described outer section, be provided with optical fiber and enter muzzle, described optical fiber enters the spacing column cap that is provided with some projections in muzzle, described inner segment is made up of jointly half hole slot on half hole slot and first box on second box, in half described hole slot, be provided with the elastic ferrule corresponding with half hole slot, first described box, on second box, be equipped with the seal groove being communicated with half hole slot on half box of self place, in a seal groove, be provided with a sealing strip, elastic ferrule on described sealing strip and self place half box is joined together to form O-ring seal, sealing strip height on one and half boxes exceeds seal groove notch 0.5 on this half box to 1mm, in elastic ferrule at least one half box, be provided with some elasticity side by side and be tamping flange, described sealing strip section is outwardly trapezoidal of large base, described sealing strip width is less than the width of correspondence position on seal groove, described envelope casting die is connected with first box by screw, described envelope casting die has elasticity, described optical fiber enters muzzle and is overlapped by first, second overlaps formation, first described cover, second cover exposes surface outside and the flush of self place half box, described semi-cylindrical groove inside surface is provided with some pickup grooves, described second puts and is provided with the connection-peg corresponding with pickup groove, second described cover passes through pickup groove with second box, connection-peg is fixedly connected with, described first puts and is also provided with the some connection-pegs that raise up, first connection-peg putting stretches in the spliced eye on envelope casting die inside surface.Optical fiber entrance cover stretches into or stretches out for optical fiber, and optical fiber is also needing through elastic ferrule after optical fiber enters muzzle, then enters in box body, and spacing column cap can be pushed down fibre bundle, avoids it to shake and causes elastic ferrule displacement.Elastic ferrule and sealing strip form O-ring seal jointly, make whole first box lower edge, second box upper limb all there is a complete circle hermetically-sealed construction, this point is compared connector box in the past, has solved the problem that the sealing of optical fiber porch is interrupted, and overall tightness is greatly strengthened.Have many time, on connector box, do not need to use all optical fiber entrances, now can utilize plug to carry out shutoff, elasticity is tamping the existence of flange, can and protruding head between form the multiple sealing that contacts, the optical fiber entrance of having avoided dust, water never to use enters in box.And the section of sealing strip is trapezoidal, the large base contact of two sealing strips, thus greatly reduce accuracy requirement, because contact area is large, even if the seal groove alignment accuracy of two and half boxes is lower, can not affect sealing contact yet.And when sealing strip compressive deformation, expand to both sides, the contact portion of two sealing strips further increases, and sealing strip is while being subject to the power from seal groove bottom land, regardless of the direction of power, directly stressed part is how for sealing strip, always some is eternal press seal groove, so can not be offset as conventional grommet type seals, and sealing strip width is less than the width of correspondence position on seal groove, ensure surplus, prevented that sealing strip from overflowing that seal groove local deformation outer and that cause is excessive, sealing strip is damaged.First overlaps, second cover is isolating construction, and second connection-peg putting is for being fixedly connected with pickup groove, and the connection-peg that first puts is for pegging graft and locate with envelope casting die.In the time that optical cable number is few, can directly use, in the time that optical cable number is more, can trip out envelope casting die, extract first cover, first connection-peg putting is separated with envelope casting die, then loading onto envelope casting die, thus, be equivalent to increase the bore of optical cable import, outlet, can be for holding more optical cable, and envelope casting die be flexible, therefore optical cable is had to the effect that compresses and retrain, still can maintain basic port sealing effect.
As preferably, first described box, the inside surface of second box are provided with reinforcement structure, described reinforcement structure comprises some horizontal bars, some vertical muscle, described horizontal bar, vertical muscle intert mutually staggered, and the height of intervening portion is consistent, described horizontal bar inside surface is plane, and described vertical muscle inside surface is cambered surface, in described box body, be provided with connector housing base, described connector housing pony sill is located on the reinforcement structure of first box or second box.Strengthen structure and not only can strengthen the load performance of box body, and it is excessive to prevent that box body is out of shape after pressurized, thereby make O-ring seal can too not come out obvious extrusion deformation even occurs, thus the sealing of maintaining.Connector housing base is connected to be strengthened in structure, plays auxiliary positioning and effect fastened to each other, that support.
As preferably, described O-ring seal and on elasticity be tamping flange and be integrated formed structure and made by rubber.Bulk strength is higher, form sealing strip, the elastic ferrule of O-ring seal one-body molded, has improved the integral sealing effect of first box, second all junctions of box, can better ensure the result of use of optical fiber connection protecting box.
As preferably, between first described box and second box, be provided with two upper arms, described upper arm one end is stretched in box body and is connected with box body by screw.Upper arm can be connected to box body on installation position, improves the stability of working environment.
As preferably, described first box, second box periphery are provided with some abutment rings in correspondence with each other, and the screw that connects first box and second box is fixed and clamped first box and second box by abutment ring.
As preferably, described first box, second box two ends are provided with side plate, within described optic fibre hole frame is in side plate scope.
As preferably, end face and bottom surface that described optical fiber enters muzzle are provided with groove, and groove runs through optical fiber and enter the length direction of muzzle.Can improve the contact effect of optical fiber contact sleeve, leave certain elastic deformation space, avoid expanding with heat and contract with cold or dimensional accuracy not high enough and cause optical fiber contact sleeve to be subject to excessive compression, also avoid it that larger position skew occurs.
The beneficial effects of the utility model are: the requirement of assembly precision is lower, has saved cost, and O-ring seal joint compresses mutually and is difficult for being shifted, upper second box joint outer rim has totally continuous hermetically-sealed construction, and sealing is good, has reinforcement structure in box body, anti-pressure ability is strong, and bulk strength is high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of second box of the utility model;
Fig. 3 is the structural representation of first box of the utility model;
Fig. 4 is the structural representation of sealing strip section in the utility model embodiment 1;
Fig. 5 is the structural representation that the utility model optical fiber enters muzzle place;
Fig. 6 is the structural representation at the utility model elastic ferrule place; .
In figure: first box 1, second box 2, envelope casting die 3, optical fiber enter muzzle 4, spacing column cap 5, elastic ferrule 6, sealing strip 7, elasticity and is tamping flange 8, horizontal bar 9, vertical muscle 10, connector housing base 11, upper arm 12, abutment ring 13, side plate 14, connection-peg 15, groove 16.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, in embodiment shown in Fig. 6, a kind of optical fiber connection protecting box, comprise first box 1, second box 2, between first described box 1 and second box 2, be connected by screw into a box body, described box body two ends are respectively equipped with at least two optic fibre hole framves, described optic fibre hole frame comprises outer section, inner segment, described outer section is made up of the envelope casting die 3 on semi-cylindrical groove and first box 1 of second box 2 ends, in described outer section, be provided with optical fiber and enter muzzle 4, described optical fiber enters the spacing column cap 5 that is provided with some projections in muzzle 4, described inner segment is made up of jointly half hole slot on half hole slot and first box 1 on second box 2, in half described hole slot, be provided with the elastic ferrule corresponding with half hole slot 6, first described box 1, on second box 2, be equipped with the seal groove being communicated with half hole slot on half box of self place, in a seal groove, be provided with a sealing strip 7, elastic ferrule 6 on described sealing strip 7 and self place half box is joined together to form O-ring seal, sealing strip 7 on one and half boxes highly exceeds seal groove notch 0.5 on this half box to 1mm, in elastic ferrule 6 at least one half box, be provided with some elasticity side by side and be tamping flange 8, described sealing strip 7 sections are outwardly trapezoidal of large base, described sealing strip 7 width are less than the width of correspondence position on seal groove, described envelope casting die 3 is connected with first box 1 by screw, described envelope casting die 3 has elasticity, described optical fiber enters muzzle 4 by first cover, second overlaps formation, first described cover, second cover exposes surface outside and the flush of self place half box, described semi-cylindrical groove inside surface is provided with some pickup grooves, described second puts and is provided with the connection-peg corresponding with pickup groove 15, second described cover passes through pickup groove with second box 2, connection-peg 15 is fixedly connected with, described first puts and is also provided with the some connection-pegs 15 that raise up, the connection-peg 15 that first puts stretches in the spliced eye on envelope casting die 3 inside surfaces.First described box 1, the inside surface of second box 2 are provided with reinforcement structure, described reinforcement structure comprises some horizontal bars 9, some vertical muscle 10, described horizontal bar 9, vertical muscle 10 intert mutually staggered, and the height of intervening portion is consistent, described horizontal bar 9 inside surfaces are plane, and described vertical muscle 10 inside surfaces are cambered surface.In described box body, be provided with connector housing base 11, described connector housing base 11 is erected on the reinforcement structure of first box 1 or second box 2.Described O-ring seal and on elasticity be tamping flange 8 and be integrated formed structure and made by rubber.Between first described box 1 and second box 2, be provided with two upper arms 12, described upper arm 12 one end are stretched in box body and are connected with box body by screw.Described first box 1, second box 2 peripheries are provided with some abutment rings 13 in correspondence with each other, connect first box 1 and first box 1 are fixed and clamped with second box 2 by abutment ring 13 with the screw of second box 2.Described first box 1, second box 2 two ends are provided with side plate 14, within described optic fibre hole frame is in side plate 14 scopes.End face and bottom surface that described optical fiber enters muzzle 4 are provided with groove 16, and groove 16 runs through optical fiber and enter the length direction of muzzle 4.
Optical fiber enters muzzle 4 for the stretching into or stretch out of optical fiber, and optical fiber also needs through elastic ferrule 6 after entering muzzle 4 through optical fiber, then enters in box body, and spacing column cap 5 can be pushed down fibre bundle, avoids it to shake and causes elastic ferrule 6 to be shifted.Elastic ferrule 6 and the common formation O-ring seal of sealing strip 7, make whole first box 1 lower edge, second box 2 upper limbs all there is a complete circle hermetically-sealed construction, this point is compared connector box in the past, has solved the problem that the sealing of optical fiber porch is interrupted, and overall tightness is greatly strengthened.Have many time, on connector box, do not need to use all optical fiber entrances, now can utilize plug to carry out shutoff, elasticity is tamping the existence of flange 8, can and protruding head between form the multiple sealing that contacts, the optical fiber entrance of having avoided dust, water never to use enters in box.And the section of sealing strip 7 is trapezoidal, the large base contact of two sealing strips 7, thus greatly reduce accuracy requirement, because contact area is large, even if the seal groove alignment accuracy of two and half boxes is lower, can not affect sealing contact yet.And when sealing strip 7 compressive deformation, expand to both sides, the contact portion of two sealing strips 7 further increases, and sealing strip 7 is while being subject to the power from seal groove bottom land, regardless of the direction of power, directly stressed part is how for sealing strip 7, always some is eternal press seal groove, so can not be offset as conventional grommet type seals, and sealing strip 7 width are less than the width of correspondence position on seal groove, ensure surplus, prevented that sealing strip 7 from overflowing that seal groove local deformation outer and that cause is excessive, sealing strip 7 breakages.First cover, second cover, for isolating construction, in the time that optical cable number is few, can directly use, in the time that optical cable number is more, can trip out envelope casting die 3, extract first cover, first connection-peg 15 putting is separated with envelope casting die, then loading onto envelope casting die 3, thus, be equivalent to increase the bore of optical cable import, outlet, can be for holding more optical cable, and envelope casting die 3 is flexible, therefore optical cable is had to the effect that compresses and retrain, still can maintain basic port sealing effect.
Claims (8)
1. an optical fiber connection protecting box, comprise first box (1), second box (2), between described first box (1) and second box (2), be connected by screw into a box body, it is characterized in that, described box body two ends are respectively equipped with at least two optic fibre hole framves, described optic fibre hole frame comprises outer section, inner segment, described outer section is made up of the envelope casting die (3) on semi-cylindrical groove and first box (1) of second box (2) end, in described outer section, be provided with optical fiber and enter muzzle (4), described optical fiber enters to be provided with in muzzle (4) the spacing column cap (5) of some projections, described inner segment is made up of jointly half hole slot on half hole slot on second box (2) and first box (1), in half described hole slot, be provided with the elastic ferrule corresponding with half hole slot (6), described first box (1), on second box (2), be equipped with the seal groove being communicated with half hole slot on half box of self place, in a seal groove, be provided with a sealing strip (7), elastic ferrule (6) on described sealing strip (7) and self place half box is joined together to form O-ring seal, sealing strip (7) on one and half boxes highly exceeds seal groove notch 0.5 on this half box to 1mm, in elastic ferrule (6) at least one half box, be provided with some elasticity side by side and be tamping flange (8), described sealing strip (7) section is outwardly trapezoidal of large base, described sealing strip (7) width is less than the width of correspondence position on seal groove, described envelope casting die (3) is connected with first box (1) by screw, described envelope casting die (3) has elasticity, described optical fiber enters muzzle (4) by first cover, second overlaps formation, first described cover, second cover exposes surface outside and the flush of self place half box, described semi-cylindrical groove inside surface is provided with some pickup grooves, described second puts and is provided with the connection-peg corresponding with pickup groove (15), second described cover passes through pickup groove with second box (2), connection-peg (15) is fixedly connected with, described first puts and is also provided with the some connection-pegs (15) that raise up, first connection-peg putting (15) stretches in the spliced eye on envelope casting die (3) inside surface.
2. a kind of optical fiber connection protecting box according to claim 1; it is characterized in that; described first box (1), the inside surface of second box (2) are provided with reinforcement structure; described reinforcement structure comprises some horizontal bars (9), some vertical muscle (10); described horizontal bar (9), vertical muscle (10) intert mutually staggered; and the height of intervening portion is consistent; described horizontal bar (9) inside surface is plane, and described vertical muscle (10) inside surface is cambered surface.
3. a kind of optical fiber connection protecting box according to claim 2; it is characterized in that; in described box body, be provided with connector housing base (11), described connector housing base (11) is erected on the reinforcement structure of first box (1) or second box (2).
4. according to a kind of optical fiber connection protecting box described in claim 1 or 2 or 3, it is characterized in that, described O-ring seal and on elasticity be tamping flange (8) and be integrated formed structure and made by rubber.
5. according to a kind of optical fiber connection protecting box described in claim 1 or 2 or 3; it is characterized in that; between described first box (1) and second box (2), be provided with two upper arms (12), described upper arm (12) one end is stretched in box body and is connected with box body by screw.
6. a kind of optical fiber connection protecting box according to claim 1 and 2; it is characterized in that; described first box (1), second box (2) periphery are provided with some abutment rings (13) in correspondence with each other, connect first box (1) and first box (1) and second box (2) are fixed and clamped by abutment ring (13) with the screw of second box (2).
7. a kind of optical fiber connection protecting box according to claim 1; it is characterized in that; described first box (1), second box (2) two ends are provided with side plate (14), within described optic fibre hole frame is in side plate (14) scope.
8. a kind of optical fiber connection protecting box according to claim 1; it is characterized in that; end face and bottom surface that described optical fiber enters muzzle (4) are provided with groove (16), and groove (16) runs through optical fiber and enter the length direction of muzzle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016488.2U CN203688870U (en) | 2014-01-10 | 2014-01-10 | Fiber continuing protective box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016488.2U CN203688870U (en) | 2014-01-10 | 2014-01-10 | Fiber continuing protective box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203688870U true CN203688870U (en) | 2014-07-02 |
Family
ID=51010752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420016488.2U Expired - Fee Related CN203688870U (en) | 2014-01-10 | 2014-01-10 | Fiber continuing protective box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203688870U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908927A (en) * | 2017-05-02 | 2017-06-30 | 常州太平通讯科技有限公司 | It is easy to install to safeguard cable splice closure |
| CN107049250A (en) * | 2017-03-28 | 2017-08-18 | 南京沃福曼医疗科技有限公司 | The interior card body of fiber spinning formula OCT conduits |
| CN112567273A (en) * | 2019-07-26 | 2021-03-26 | 华为技术有限公司 | Optical fiber splicing assembly, sealing method thereof and optical fiber splicing box |
-
2014
- 2014-01-10 CN CN201420016488.2U patent/CN203688870U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107049250A (en) * | 2017-03-28 | 2017-08-18 | 南京沃福曼医疗科技有限公司 | The interior card body of fiber spinning formula OCT conduits |
| CN106908927A (en) * | 2017-05-02 | 2017-06-30 | 常州太平通讯科技有限公司 | It is easy to install to safeguard cable splice closure |
| CN106908927B (en) * | 2017-05-02 | 2023-05-16 | 常州太平通讯科技有限公司 | Optical cable joint box easy to install and maintain |
| CN112567273A (en) * | 2019-07-26 | 2021-03-26 | 华为技术有限公司 | Optical fiber splicing assembly, sealing method thereof and optical fiber splicing box |
| US11175468B2 (en) | 2019-07-26 | 2021-11-16 | Huawei Technologies Co., Ltd. | Optical fiber junction assembly and sealing method thereof, and optical fiber junction box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20200110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |