CN206741050U - A kind of lightweight fiber optic cable - Google Patents
A kind of lightweight fiber optic cable Download PDFInfo
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- CN206741050U CN206741050U CN201720332758.4U CN201720332758U CN206741050U CN 206741050 U CN206741050 U CN 206741050U CN 201720332758 U CN201720332758 U CN 201720332758U CN 206741050 U CN206741050 U CN 206741050U
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- packed layer
- polyolefin
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- optical fiber
- cable
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Abstract
The utility model discloses a kind of lightweight fiber optic cable, include steel wire, packed layer, optical fiber and sheath from the inside to the outside, packed layer is made up of the polyolefin of foaming, in the endodermis of one layer of solid polyolefin of surface extrusion molding of steel wire, in the exodermis of one layer of solid polyolefin of surface extrusion molding of packed layer, the dosage for reducing polyolefin is made using the polyolefin of foaming in packed layer, and cost reduces.
Description
Technical field
It the utility model is related to layer-stranding cable technical field, more particularly to a kind of lighter weight, cost of manufacture are lower
Lightweight cable.
Background technology
Optical cable is to be used as transmission medium and can individually or in groups by the use of one or more optical fiber being placed in cladding sheath
The communications cable component used.It is that a number of optical fiber forms the cable heart according to certain way, is surrounded by sheath, some also bags outside
Multiple outer jacket, to realize a kind of communication line of optical signal transmission.I.e.：By optical fiber（Optical transmission carrier）By certain work
Skill and the cable formed.The basic structure of optical cable is usually to be made up of several parts such as cable core, reinforcement steel wire, filler and sheaths,
According further to needing the also component such as waterproof layer, cushion, insulated metal wire.Layer-stranding cable is by more receiving optical fiber
Reinforcer of the Loose tube around center is twisted into the cable core of rounding.Metal or non-metal reinforcement member are located at the center of optical cable, accommodate light
Fine Loose tube arranges around reinforcer.Existing layer-stranding cable uses solid polyolefin（Such as polyethylene）Material makes,
The layer-stranding cable quality weight prepared using solid polyolefin, cost are high.
As China Patent No. is：201320449197.8 a kind of polyethylene fibre composite band armored optical cable is disclosed, including
Cable core and oversheath, polyethylene fibre composite band armouring, the polyethylene fibre composite band armour are provided between cable core and oversheath
Dress includes polyethylene fibre composite band and non-woven fabrics, and polyethylene fibre composite band is coated on cable core, and non-woven fabrics is coated on poly- second
On alkene fiber composite band.Above-mentioned utility model, as armouring, equally deposits system as a result of solid polyethylene fibre composite band
The shortcomings that standby optical cable quality is big, and cost is high.
The Patent No. 200510022033.7 of Ling You our company, discloses a kind of electric cable foaming method, belongs to cable production
Technical field, and in particular to the physical foaming technology of cable production, physical foaming method proposed by the present invention, be characterized in using
High-pressure gas injection system substitutes low pressure gas injection system, has reached the physical blowing degree of raising and stable prod, makes foaming more equal
It is even, stably, it is easily controllable, improve properties of product, overcome that low pressure gas injection foam degrees are limited, foam degrees stability is poor, screw rod
The shortcomings of thickener is serious, product cost is reduced, can be widely used for the production field of cable, should by the polyethylene through physical blowing
Use in the utility model, so that the layer-stranding cable prepared is in light weight, cost is low.
Utility model content
The defects of in order to overcome above-mentioned prior art, the purpose of this utility model are to provide a kind of in light weight, cost of manufacture
Lower lightweight fiber optic cable.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of lightweight fiber optic cable, layer-stranding cable include steel wire, packed layer, optical fiber and sheath from the inside to the outside, it is characterised in that：
Described packed layer is made up of the polyolefin of foaming, the endodermis of solid polyolefin is provided with the surface of steel wire, in packed layer
Surface is provided with the exodermis of solid polyolefin.The dosage for reducing polyolefin, cost is made using the polyolefin of foaming in packed layer
Reduce, weight saving, before extrusion molding packed layer, the endodermis of first one layer of solid polyolefin of surface extrusion molding in steel wire, be easy to
Expanded polyolefin is bonded and waterproof, after extrusion molding packed layer is completed, the exodermis of one layer of solid polyolefin of extrusion molding again on its surface,
Optical fiber more easy sticker is complete, and has the function that waterproof.
A diameter of 3-7mm of described packed layer.Facilitate the setting of various model optical fiber.
Also include wrinkles aluminium tube, the wrinkles aluminium tube between optical fiber and sheath, the optical fiber be located at wrinkles aluminium tube with
In annular housing between packed layer.
Cable cream is filled with annular housing between wrinkles aluminium tube and packed layer.
The utility model has advantages below：
1st, packed layer of the present utility model is made up of the polyolefin of foaming, in one layer of solid polyolefin of surface extrusion molding of steel wire
Endothelium, in the crust of one layer of solid polyolefin of surface extrusion molding of packed layer.Utilize our company's patented method
The 200510022033.7 abundant foaming prepared, the foam polyolefin of mutual closed pore, packed layer reduces solid in the prior art
The dosage of polyolefin, cost reduce, weight saving, due to the problem of bonding and infiltration being present using foam polyolefin, therefore
Before extrusion molding packed layer, first steel wire one layer of solid polyolefin of surface extrusion molding endodermis, be easy to expanded polyolefin bonding and
Waterproof, after modeling packed layer is completed, the exodermis of one layer of solid polyolefin of extrusion molding again on its surface, optical fiber more easy sticker is complete, and has
There is waterproof.
2nd, a diameter of 3-7mm of packed layer of the present utility model, it can facilitate and various models are set on the surface of packed layer
With quantity optical fiber, to reach optimal excircle dimension.
3rd, wrinkles aluminium tube of the present utility model, wrinkles aluminium tube are that the outside of aluminum pipe is fold shape, and its a pair of optical fiber are had
The protection of effect, secondly the aluminum pipe of fold shape is easy to be connected with sheath.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Marked in figure：1st, steel wire, 2, packed layer, 3, optical fiber, 4, sheath, 5, endodermis, 6, exodermis, 7, wrinkles aluminium tube.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings：
Embodiment 1
As shown in figure 1, a kind of lightweight fiber optic cable, the light-duty layer-stranding cable is mainly used in open air, and layer-stranding cable is by interior
To steel wire 1, packed layer 2, optical fiber 3 and sheath 4 is included outside, steel wire 1 is phosphatization steel wire or phosphatization steel strand wires.Packed layer 2 is foaming
Polyolefin be made, in the endodermis 5 of one layer of solid polyolefin of surface extrusion molding of steel wire 1, in one layer of the surface extrusion molding of packed layer 2
The exodermis 6 of solid polyolefin.φ 1.80mm~φ 2.5mm phosphatization steel wire or phosphatization steel strand wires are placed at center, i.e.,
Steel wire 1；Endodermis 2 is formed in 1 surface extrusion molding of steel wire, one layer of solid polyolefin；Pass through the extruded mould size φ of design
2.0mm~φ 5.0mm obtain a diameter of 3.00~φ of φ 7.00 of physical blowing polyolefin physical blowing polyolefin strengthening core,
That is packed layer 2；One layer of solid polyolefin of extrusion molding, i.e. exodermis 6 outside foaming layer.Packed layer is made of the polyolefin of foaming
Reduce the dosage of polyolefin, weight saving, the weight of expanded polyolefin packed layer 2 is only former solid polyolefin packed layer 40
~60%.Reduce cost simultaneously.Before extrusion molding packed layer, the endothelium of first one layer of solid polyolefin of surface extrusion molding in steel wire
Layer, it is easy to expanded polyolefin bonding and waterproof, after modeling packed layer is completed, one layer of solid polyolefin of extrusion molding again is outer on its surface
Cortex, optical fiber more easy sticker is complete, and has the function that waterproof.
Further, in addition to wrinkles aluminium tube 7, between optical fiber 3 and sheath 4, the optical fiber 3 is located at wrinkles aluminium tube 7
In annular housing between wrinkles aluminium tube 7 and packed layer 2.Wrinkles aluminium tube 7 is that the outside of aluminum pipe is fold shape, and its a pair of optical fiber enter
Row is effectively protected, secondly the aluminum pipe of fold shape is easy to be connected with sheath.
Further, cable cream is filled with the annular housing between wrinkles aluminium tube 7 and packed layer 2.
Claims (4)
- A kind of 1. lightweight fiber optic cable, from the inside to the outside including steel wire (1), packed layer (2), optical fiber (3) and sheath (4), it is characterised in that： Described packed layer (2) is made up of the polyolefin of foaming, and the endodermis (5) of solid polyolefin is provided with the surface of steel wire (1), The surface of packed layer (2) is provided with the exodermis (6) of solid polyolefin.
- A kind of 2. lightweight fiber optic cable according to claim 1, it is characterised in that：A diameter of 3- of described packed layer (2) 7mm。
- A kind of 3. lightweight fiber optic cable according to claim 1, it is characterised in that：Also include wrinkles aluminium tube (7), the wrinkle aluminium Pipe (7) is located between optical fiber (3) and sheath (4), and the optical fiber (3) is located at the annular between wrinkles aluminium tube (7) and packed layer (2) In cavity.
- A kind of 4. lightweight fiber optic cable according to claim 3, it is characterised in that：Between wrinkles aluminium tube (7) and packed layer (2) Cable cream is filled with annular housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332758.4U CN206741050U (en) | 2017-03-31 | 2017-03-31 | A kind of lightweight fiber optic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332758.4U CN206741050U (en) | 2017-03-31 | 2017-03-31 | A kind of lightweight fiber optic cable |
Publications (1)
| Publication Number | Publication Date |
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| CN206741050U true CN206741050U (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720332758.4U Active CN206741050U (en) | 2017-03-31 | 2017-03-31 | A kind of lightweight fiber optic cable |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114296196A (en) * | 2021-12-29 | 2022-04-08 | 通鼎互联信息股份有限公司 | Foaming filling method for optical cable |
-
2017
- 2017-03-31 CN CN201720332758.4U patent/CN206741050U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114296196A (en) * | 2021-12-29 | 2022-04-08 | 通鼎互联信息股份有限公司 | Foaming filling method for optical cable |
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