CN206804946U - A kind of double sheath butterfly cables - Google Patents
A kind of double sheath butterfly cables Download PDFInfo
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- CN206804946U CN206804946U CN201720515217.5U CN201720515217U CN206804946U CN 206804946 U CN206804946 U CN 206804946U CN 201720515217 U CN201720515217 U CN 201720515217U CN 206804946 U CN206804946 U CN 206804946U
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- sheath
- body unit
- butterfly
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- optical fiber
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Abstract
The utility model discloses a kind of double sheath butterfly cables, including at least one body unit and secondary sheath, wherein, body unit includes at least optical fiber positioned at body unit center, at least first parallel reinforcer positioned at body unit end and a sheath of parcel optical fiber and the first parallel reinforcer, and body unit is wrapped in interior by secondary sheath.The utility model is effectively increased butterfly cable thickness, is effectively protected optical fiber, and by sheath periphery one layer of fibre-reinforced plastics band of parcel in body unit, not only increased tensile property but also prevented cicada worm, mouse ant from biting.Multifiber can be placed in multiple body units by the utility model, efficiently separate optical fiber, reduce fine risk of breaking simultaneously, can reach the using effect that a core uses, remaining is spare fibre.
Description
Technical field
Optical fiber cable technical field is the utility model is related to, in particular it relates to a kind of double sheath butterfly cables.
Background technology
With intelligent acess (FTTx, Fiber-to-the-x) development, in " last rice " of fiber entering household, butterfly light
Cable (abbreviation butterfly cable, also known as covered wire cable) carries very important role.The use of butterfly cable is more and more, and application environment is also got over
Come more complicated.Conventional butterfly optical cable has point of self-bearing type and non-self-bearing type, and conventional specification distribution focuses mostly in 1 core, 2 cores, 4 cores.
Wherein self-bearing type butterfly cable contains messenger section, and non-self-bearing type butterfly cable only has body part.More points of the environment that self-bearing type butterfly cable uses
Cloth is distributed indoors more in outdoor, the use environment of non-self-bearing type butterfly cable, and non-self-bearing type butterfly cable is alternatively referred to as indoor butterfly cable.
Fig. 1 a, Fig. 1 b and Fig. 1 c be butterfly cable in existing 1 core room respectively, in 2 core rooms in butterfly cable and 4 core rooms butterfly cable structure
Schematic diagram, as shown in Fig. 1 a, 1b and 1c, indoor butterfly cable body includes the optical fiber 110 for lining up row pattern and supported positioned at body both ends
The the first parallel line feeder 120 and a sheath 130 ' of parcel optical fiber and line feeder of optical fiber, and on a sheath 130 '
Leave V-groove 131.In Fig. 1 a, 1b and 1c, the thickness of a sheath 130 ' is 0.2-0.4mm.The wiring of indoor butterfly cable passes through more
Cross corridor vertical shaft and bending turning point is more, while be artificially not intended to damage, the probability for damaging the fibre that breaks is bitten by cicada worm, mouse ant
It is larger.But the butterfly cable connected up in building, if being damaged, rewiring is cumbersome.It is meanwhile if routed in corridor vertical shaft
Complete, the space of the inside can be more crowded, then rewiring, threading can be highly difficult, and there is also other, the good line loss of cloth has been hindered
Risk.
Based on this, the butterfly cable of many corridor wirings, indoor butterfly cable (2 cores and 4 as shown in figs. lb and lc for selecting multicore more
Butterfly cable in core room).But as shown in figs. lb and lc, butterfly cable wall thickness is relatively thin in the multicore room used at present, and multi-core fiber relatively collects
In, it is close, if in vertical shaft firmly pull, it is easy to by optical fibre damage, meanwhile, the wall thickness at butterfly cable V-groove mouth is relatively thin, also holds
It is easily caused disconnected fibre, and if increase butterfly cable wall thickness simply, it is difficult to take out optical fiber in construction, disconnected light is shelled when even constructing
Fibre, influence efficiency of construction.If being bitten by cicada worm, mouse ant in addition, laying good indoor butterfly cable, or even being bitten broken, it is in many cases
Multifiber is bitten, bitten broken simultaneously.In this case, even if indoor butterfly cable selects multicore butterfly cable, it is also difficult to which reaching a core makes
With, remaining be spare fibre using effect.
Utility model content
In view of problem above, the purpose of this utility model is to provide a kind of double sheath butterfly cables, with solve existing butterfly cable due to
The relatively thin fine technical problem of easily breaking of wall thickness.
To achieve these goals, the utility model uses following technical scheme：
Double sheath butterfly cables described in the utility model, including：
At least one body unit, each body unit include at least optical fiber positioned at body unit center, are located at
An at least first parallel reinforcer and a sheath of parcel optical fiber and the first parallel reinforcer for body unit end；With
And
Secondary sheath, in body unit is wrapped in by the secondary sheath, the covering thickness of clad optical fiber is added, effectively
Protect optical fiber.
Preferably, double sheath butterfly cables also include fibre-reinforced plastics (FRP, Fiber Reinforced
Polymer/Plastic) band, between a sheath and secondary sheath, it can effectively prevent cicada worm, mouse ant from biting.
Preferably, the center of body unit is offset to one end of secondary sheath, the effective effective thickness for increasing body unit
Degree, preferably protect the optical fiber in a sheath.
Further, it is preferable to, the other end of secondary sheath is provided with the second parallel reinforcer, the second parallel reinforcer
External diameter is more than the external diameter of the first parallel reinforcer, further lifts the overall tension of double sheath butterfly cables and bending resistance.
Preferably, center symmetric setting of the body unit on secondary sheath.
Preferably, each of two body units positioned at double sheath butterfly cable both ends is only included close to double shields
The first parallel reinforcer in layer butterfly cable-end portion.
Preferably, the both ends of secondary sheath are also respectively provided with the 3rd parallel reinforcer.
Preferably, a sheath and secondary sheath are respectively provided with a pair of breach, improve the success rate of construction fiber stripping, reduce stripping
Fine difficulty.
Preferably, double sheath butterfly cables include multiple body units, and a sheath of each body unit is respectively adopted
Not same color, and/or a sheath or secondary sheath the surface position corresponding with the body unit are provided with difference
Mark.
Preferably, the thickness of a sheath is 0.1~0.2mm, and the thickness of secondary sheath is 0.3~0.5mm.
Compared with prior art, the utility model has advantages below and beneficial effect：
The utility model makes the increase of butterfly cable wall thickness by a sheath and secondary sheath, and the covering thickness of clad optical fiber increases
Add, more effectively protect optical fiber, while improve the success rate of construction fiber stripping, reduce the difficulty of fiber stripping；A sheath periphery
One layer of FPR band is wrapped, tensile property can be strengthened and effectively prevent cicada worm, mouse ant from biting；When butterfly cable includes multifiber,
Optical fiber is placed in multiple body units, efficiently separates multifiber, the risk of indoor butterfly cable while the fibre that breaks is reduced, reaches
The using effect that one core uses, remaining optical fiber is standby, can be very good to ensure giving full play to for indoor butterfly cable spare fibre function.
Brief description of the drawings
Fig. 1 a are the structural representations of butterfly cable in existing 1 core room；
Fig. 1 b are the structural representations of butterfly cable in existing 2 core room；
Fig. 1 c are the structural representations of butterfly cable in existing 4 core room；
Fig. 2 is the preferred embodiment structural representation of the double sheath butterfly cables of the core of the utility model 1；
Fig. 3 is the preferred embodiment structural representation of the double sheath butterfly cables of the core of the utility model 2；
Fig. 4 is the preferred embodiment structural representation of the double sheath butterfly cables of the core of the utility model 4；
Fig. 5 is another example structure schematic diagram of the double sheath butterfly cables of the core of the utility model 2；
Fig. 6 is the another example structure schematic diagram of the double sheath butterfly cables of the core of the utility model 2；
Fig. 7 is the another embodiment structural representation of the double sheath butterfly cables of the core of the utility model 2.
Embodiment
Embodiment described in the utility model described below with reference to the accompanying drawings.One of ordinary skill in the art can recognize
Know, can be with a variety of modes or its combination to institute in the case of without departing from spirit and scope of the present utility model
The embodiment of description is modified.Therefore, accompanying drawing and description are inherently illustrative, rather than for limiting claim
Protection domain.In addition, in this manual, accompanying drawing is drawn not in scale, and identical reference represents identical portion
Point.
Double sheath butterfly cables described in the utility model include：
At least one body unit, wherein, body unit includes at least optical fiber positioned at body unit center, is located at
An at least first parallel reinforcer and a sheath of parcel optical fiber and the first parallel reinforcer for body unit end；With
And
Secondary sheath, wherein, above-mentioned body unit is wrapped in interior by secondary sheath.
Preferably, in body unit periphery one layer of FRP band of parcel, FRP bands are between a sheath and secondary sheath, both
Increase tensile property again can prevent cicada worm, mouse ant from biting, protection optical fiber.
Describe embodiment of the present utility model in detail with reference to Fig. 2 to Fig. 7.
Fig. 2 is the preferred embodiment structural representation of the double sheath butterfly cables of the core of the utility model 1, as shown in Fig. 2 this practicality is new
Double sheath butterfly cables include described in type：
One body unit, wherein, body unit includes 110, two first parallel reinforcers 120 of an optical fiber and bag
Wrap up in a sheath 130 of the reinforcer 120 parallel with first of optical fiber 110, optical fiber 110 is located at the center of body unit, two first
Parallel reinforcer 120 is located at the both ends of body unit respectively；And
Secondary sheath 200, in body unit is wrapped in by secondary sheath 200, wherein, the center of body unit and secondary shield
The center superposition of layer 200.
Wherein, the thickness of a sheath 130 can be decreased to 0.1~0.2mm, the thickness of secondary sheath can set to
0.3~0.5mm, so, the wall thickness of double sheath butterfly cables substantially increases, the covering thickness increase at optical fiber 110, can be with more efficient
Protection optical fiber 110.
Preferably, in body unit periphery one layer of FRP band 300 of parcel, FRP bands 300 are positioned at a sheath 130 and secondary shield
Between layer 200, not only increased tensile property and can prevent cicada worm, mouse ant from biting, protection optical fiber 110.
Preferably, a sheath 130 and secondary sheath 200 are respectively provided with a pair of breach 131, improve the success of construction fiber stripping
Rate, reduce the difficulty of fiber stripping.Wherein, breach 131 can be V-groove.
Fig. 3 is the preferred embodiment structural representation of the double sheath butterfly cables of the core of the utility model 2, as shown in figure 3, this practicality is new
Double sheath butterfly cables include described in type：
Two body units, wherein, each body unit includes 110, two first parallel reinforcers 120 of an optical fiber
And a sheath 130 of parallel with first reinforcer 120 of parcel optical fiber 110, optical fiber 110 are located at the center of body unit, two
The parallel reinforcer 120 of root first is located at the both ends of body unit respectively；And
Secondary sheath 200, in two body units are wrapped in by secondary sheath 200, wherein, two body units can be with
Center symmetric setting on secondary sheath 200.Two optical fiber 110 are respectively placed in two body units, effective point
From optical fiber, double sheath butterfly cables disconnected fine risk simultaneously is reduced, and core use can be reached, remaining is imitated for the use of spare fibre
Fruit, ensure giving full play to for spare fibre function.
Preferably, two body units are wrapped in interior by FRP bands 300.
Fig. 5 is another example structure schematic diagram of the double sheath butterfly cables of the utility model 2 core, as shown in figure 5, with Fig. 3 institutes
The double sheath butterfly cables of 2 cores unlike the double sheath butterfly cable structures of 2 cores shown shown in Fig. 5 include：One body unit, wherein, this
Body unit includes two optical fiber, 110, two first parallel reinforcers 120 and parcel optical fiber 110 reinforcer 120 parallel with first
A sheath 130；And
Body unit is wrapped in interior by secondary sheath 200, secondary sheath 200.
Preferably, the center of body unit is offset to one end of secondary sheath 200, can effectively increase body unit
Effective thickness, preferably protect optical fiber 110；Preferably, the other end of secondary sheath 200 is provided with the second parallel reinforcer
220, and the external diameter of the second parallel reinforcer 220 is more than the external diameter of the first parallel reinforcer 120, the second parallel reinforcer 220 can
Further to lift the overall tension of double sheath butterfly cables and bending resistance.
Fig. 5 only illustrates so that double sheath butterfly cables include a body unit as an example, and not limited to this, is also applied for double shields
Layer butterfly cable includes the situation of multiple body units.
Fig. 4 is the preferred embodiment structural representation of the double sheath butterfly cables of the core of the utility model 4, as shown in figure 4, Fig. 4 and Fig. 3
In the differences of double sheath butterfly cable structures be that each body unit includes two optical fiber, 110, two first parallel reinforcements
Sheath 130 of part 120 and parcel optical fiber 110 reinforcer 120 parallel with first.Four optical fiber 110 are averagely positioned over
In two body units, optical fiber is efficiently separated, reduces double sheath butterfly cables disconnected fine risk simultaneously, and a core can be reached to make
With remaining is the using effect of spare fibre.
As shown in Figure 3 and Figure 4, when double sheath butterfly cables include two body units, it is necessary to be distinguished to body unit.One side
Face, a sheath 130 of two body units can be respectively adopted different colour code (black or white etc.), can also lead to
Cross and set different marks to distinguish two body units on a surface of sheath 130, for example, in a sheath surface spray printing not
With color or vitta etc.；On the other hand, can also be by being set in the secondary surface of sheath 200 position corresponding with body unit
Isolabeling does not distinguish two body units, for example, in the secondary sheath 200 side table corresponding with one of body unit
Color or vitta are added in face, or set the mark such as V-groove in secondary sheath 200 side corresponding with one of body unit
Know.
It should be noted that in the utility model, when indoor butterfly cable includes multifiber (2 or 4, but be not limited to
This) when, although only showing the embodiment that multifiber is placed in multiple body units by the double sheath butterfly cables of 4 cores, also may be used
It is positioned over so that multifiber is lined up into row pattern in a body unit.
Under different use environments, the number of the first parallel reinforcer 120 in double sheath butterfly cable structures can be suitably adjusted
Amount or position, increase and decrease the tensile property of double sheath butterfly cables with this, using the double sheath butterfly cables of 2 cores including two body units as
Example, is illustrated with reference to Fig. 3, Fig. 6 and Fig. 7.Fig. 6 is the another example structure signal of the double sheath butterfly cables of the core of the utility model 2
Figure；Fig. 7 is the another embodiment structural representation of the double sheath butterfly cables of the core of the utility model 2.
As shown in Fig. 3, Fig. 6 and Fig. 7, the double sheath butterfly cables of 2 cores include two body units, unlike, it is every in Fig. 6
Individual body unit includes 110, first parallel reinforcers 120 of an optical fiber and the reinforcement parallel with first of parcel optical fiber 110
Sheath 130 of part 120, and the first parallel reinforcer 120 is located at body unit close to the one end in double sheath butterfly cable-end portions, and
Fig. 3 includes 110, two first parallel reinforcers 120 of an optical fiber and parcel optical fiber with each body unit in Fig. 7
Sheath 130 of 110 reinforcers 120 parallel with first, and the both ends of secondary sheath 200 in Fig. 7 are also respectively provided with the 3rd
Parallel reinforcer 140.
In the utility model, although illustrate only the double sheath butterfly cables of 2 cores including two body units makes according to difference
The quantity of reinforcer 120 or the structural representation of position are adjusted with environment, but 1 core or the double sheath butterfly cables of 4 cores can also bases
The quantity of different use environment adjustment reinforcers 120 or position, increase and decrease the tensile property of double sheath butterfly cables with this.
It should be noted that only illustrating the structure of double sheath butterfly cables by taking indoor butterfly cable as an example above, and it is not limited to
This, the utility model is equally applicable to outdoor butterfly cable, sheet of the double sheath butterfly cables described in the utility model equivalent to outdoor butterfly cable
Body portion, it is connected with the messenger section of outdoor butterfly cable.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this area
Technical staff for, the utility model can have various modifications and variations.It is all within the spirit and principles of the utility model,
Any modification, equivalent substitution and improvements made etc., should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. double sheath butterfly cables, it is characterised in that including：At least one body unit, each body unit include at least optical fiber positioned at the body unit center, are located at An at least first parallel reinforcer and parcel optical fiber reinforcer parallel with described first for the body unit end A sheath；AndThe body unit is wrapped in interior by secondary sheath, the secondary sheath.
- 2. double sheath butterfly cables according to claim 1, it is characterised in that also including fibre-reinforced plastics band, be located at Between sheath and the secondary sheath.
- 3. double sheath butterfly cables according to claim 1, it is characterised in that the center of the body unit is to the secondary shield One end skew of layer.
- 4. double sheath butterfly cables according to claim 3, it is characterised in that the other end of the secondary sheath is provided with second Parallel reinforcer, the external diameter of the second parallel reinforcer are more than the external diameter of the described first parallel reinforcer.
- 5. double sheath butterfly cables according to claim 1, it is characterised in that the body unit is on the secondary sheath Center symmetric setting.
- 6. double sheath butterfly cables according to claim 5, it is characterised in that two sheets positioned at double sheath butterfly cable both ends Each of body unit only includes the first parallel reinforcer close to double sheath butterfly cable-end portions.
- 7. double sheath butterfly cables according to claim 1, it is characterised in that the both ends of the secondary sheath are also respectively provided with 3rd parallel reinforcer.
- 8. double sheath butterfly cables according to claim 1 a, it is characterised in that sheath and the secondary sheath have There are a pair of breach.
- 9. double sheath butterfly cables according to claim 1, it is characterised in that double sheath butterfly cables include multiple body lists Not same color, and/or a sheath or secondary sheath surface and institute is respectively adopted in member, a sheath of each body unit State the corresponding position of body unit and be provided with not isolabeling.
- 10. double sheath butterfly cables according to claim 1, it is characterised in that the thickness of a sheath be 0.1~ 0.2mm, the thickness of the secondary sheath is 0.3~0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720515217.5U CN206804946U (en) | 2017-05-10 | 2017-05-10 | A kind of double sheath butterfly cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720515217.5U CN206804946U (en) | 2017-05-10 | 2017-05-10 | A kind of double sheath butterfly cables |
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| Publication Number | Publication Date |
|---|---|
| CN206804946U true CN206804946U (en) | 2017-12-26 |
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ID=60740099
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|---|---|---|---|
| CN201720515217.5U Active CN206804946U (en) | 2017-05-10 | 2017-05-10 | A kind of double sheath butterfly cables |
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| CN (1) | CN206804946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113534370A (en) * | 2021-06-16 | 2021-10-22 | 华为技术有限公司 | Optical cable |
-
2017
- 2017-05-10 CN CN201720515217.5U patent/CN206804946U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113534370A (en) * | 2021-06-16 | 2021-10-22 | 华为技术有限公司 | Optical cable |
| CN113534370B (en) * | 2021-06-16 | 2022-10-04 | 华为技术有限公司 | Optical cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 300384 Tianjin Binhai Hi-tech Industrial Development Zone Huayuan Technology Park (outside the ring) Hai Tai development No. 9 Patentee after: Fortis special optical fiber cable (Tianjin) Co., Ltd. Address before: 300384 Tianjin Binhai New Area Binhai new and high technology Industrial Development Zone Huayuan Technology Park (outside the ring) Hai Tai development No. 9 Patentee before: FUTONG ZHUDIAN SPECIAL CABLE (TIANJIN) CO., LTD. |
|
| CP03 | Change of name, title or address |