CN201075142Y - Light central tube type optical cable - Google Patents
Light central tube type optical cable Download PDFInfo
- Publication number
- CN201075142Y CN201075142Y CNU2007200389871U CN200720038987U CN201075142Y CN 201075142 Y CN201075142 Y CN 201075142Y CN U2007200389871 U CNU2007200389871 U CN U2007200389871U CN 200720038987 U CN200720038987 U CN 200720038987U CN 201075142 Y CN201075142 Y CN 201075142Y
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- optical cable
- oversheath
- pipe box
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a light central pipe-typed cable, comprising at least a bunch of optical fiber, a loose sleeve which is sheathed on the periphery of the optical fiber, waterproof filling material which is filled between the optical fiber and the loose sleeve and an external protection sleeve which is sleeved on the periphery of the loose sleeve. The waterproof filling material is in small grain shape and the material of the waterproof material is foam. The cable central pipe is filled with small-grain foam water-blocking material instead of ointment, thus protecting the optical fiber belt to implement water-blocking and lightening the weight of the cable; furthermore, the cable is softer and flexibly bent, thus being easy for application and convenient for middle connection and application.
Description
Technical field
The utility model relates to a kind of optical cable.
Background technology
Existing optical cable generally includes optical fiber, be set in the optical fiber periphery PBT pine sleeve pipe, be set in the tygon oversheath of PBT pine sleeve pipe outer ring, owing between optical fiber and loose sleeve pipe, certain space is arranged, for waterproof, usually factice for filling in this space, thereby play resistance effect, work and cleaning when using but this kind optical cable is unfavorable for continuing, and in the building during vertical run because the long term ointment of gravity can be dirty, pollute connector box and influence transmission performance.
Summary of the invention
The utility model purpose is the light-duty central tubular optical cable that a kind of in light weight, soft, good bending property is provided in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of light-duty central tubular optical cable, comprise a branch of at least optical fiber, be set in described optical fiber periphery loose pipe box, be filled in waterproof filling material between described optical fiber and the described loose pipe box, be set in the oversheath of described loose pipe box periphery, described waterproof filling material is fine granularity, and described waterproof filling material material is a foam.
To the variation of technique scheme be explained as follows:
1, also be provided with compound glass silk fiber enhancement Layer between described loose pipe box and described oversheath, the inside surface of described compound glass silk fiber enhancement Layer and described loose pipe box outside surface and oversheath is bonding.By this compound glass silk fiber enhancement Layer is set, make that the tensile property of this optical cable is better, also further simultaneously waterproof, and can mouse bite preventing.
2, described oversheath is a low-smoke non-halogen flame-retardant tygon oversheath, adopts this kind oversheath, makes optical cable have good flame retardancy.
3, the described optical fiber of multi beam is bonding successively is arranged to fibre ribbon, and at least two described fibre ribbons are provided with composition fibre ribbon duplexer stackedly.
And it is nonmetal that each of optical cable layer is, so optical cable weight is lighter.
Because the utilization of technique scheme; the utility model compared with prior art has following advantage: because factice for filling not in this novel optical cable pipe core; and filling fine granularity foam material water-proof material; both can protect fibre ribbon to realize blocking water; alleviated optical cable weight again; and soft more, can be crooked flexibly, thereby convenient the use is convenient to middlely continue and use.
Description of drawings
Accompanying drawing 1 is the utility model cross sectional representation;
Wherein: 1, optical fiber; 2, loose sleeve pipe 3, waterproof filling material 4, oversheath 5, compound glass silk fiber enhancement Layer 6, fibre ribbon duplexer;
Embodiment
Below in conjunction with accompanying drawing, describe particular content of the present utility model in detail for example:
As shown in Figure 1, the optical cable of present embodiment is light-duty center type optical fiber ribbon cable, comprises fibre ribbon duplexer 6, loose pipe box 2, compound glass silk fiber enhancement Layer 5, oversheath 4 from the inside to the outside successively.
Wherein, fibre ribbon duplexer 6 is formed by a plurality of fibre ribbons are folded mutually, and each fibre ribbon is made up of bonding successively multiple beams of optical fiber, in the present embodiment, each fibre ribbon comprises eight described optical fiber 1, and fibre ribbon duplexer 6 forms by eight described fibre ribbons are folded mutually.The number of plies of the number of optical fiber 1 and fibre ribbon duplexer 6 can be according to the needs that use and flexible design in each fibre ribbon.
The material of pine pipe box 2 adopts PBT, i.e. polybutylene terephthalate (polybutyleceterephthalate), and this is a general knowledge known in this field, does not repeat them here.
Has certain space between described fibre ribbon 6 and the described loose pipe box 2, thereby can prevent that in order to fill this space sealing enters damage optical fiber, fill up the graininess foamed material at fibre ribbon 6 and 2 of loose sleeve pipes, fill that this foamed material has following several advantage: a, makes optical cable have excellent waterproof function b, foamed material can be fixed on the tube hub position with fibre ribbon 6; C, because foam beads is lighter, thereby make the light d of this kind optical cable weight, whole optical cable soft, bending property is better.
The outside surface of pine sleeve pipe 2 also is coated with enhancement Layer 5, this enhancement Layer 5 adopts compound glass silk (GCO, Glass Composite Oval) fiber is made, this compound glass silk is made up of the parallel glass silk of the synthetic hot melt adhesive of dipping, glass fiber is coated on the loose pipe box 2, can closely glue together mutually thereby the hot melt adhesive on the waste heat GCO element that produces in the process is softening with loose pipe box 2 outside surfaces, equally, the inside surface of itself and outermost oversheath 4 also closely gummed be provided with, the setting of enhancement Layer, can make longitudinally and laterally better water proofing property all of optical cable, also anti-simultaneously rodent is nibbled, and has good tensile property.
Described oversheath 4 adopts high-quality low-smoke non-halogen flame-retardant oversheath material, and this kind material has good flame retardancy.
Use in the indoor environment of a large amount of optical fiber of needs such as the light-duty central tubular optical fiber ribbon cable of this kind is specially adapted in the building, machine room.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (4)
1. light-duty central tubular optical cable, comprise a branch of at least optical fiber (1), be set in described optical fiber (1) periphery loose pipe box (2), be filled in waterproof filling material (3) between described optical fiber (1) and the described loose pipe box (2), be set in the oversheath (4) of described loose pipe box (2) periphery, it is characterized in that: described waterproof filling material (3) is fine granularity, and described waterproof filling material (3) material is a foam.
2. light-duty central tubular optical cable according to claim 1, it is characterized in that: also be provided with compound glass silk fiber enhancement Layer (5) between described loose pipe box (2) and described oversheath (4), described compound glass silk fiber enhancement Layer (5) is bonding with the inside surface of described loose pipe box (2) outside surface and oversheath (4).
3. light-duty central tubular optical cable according to claim 1 and 2 is characterized in that: described oversheath (4) is a low-smoke non-halogen flame-retardant tygon oversheath.
4. light-duty central tubular optical cable according to claim 1 and 2 is characterized in that: the described optical fiber of multi beam (1) is bonding successively is arranged to fibre ribbon, and at least two described fibre ribbons are provided with composition fibre ribbon duplexer (6) stackedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200389871U CN201075142Y (en) | 2007-06-29 | 2007-06-29 | Light central tube type optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200389871U CN201075142Y (en) | 2007-06-29 | 2007-06-29 | Light central tube type optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075142Y true CN201075142Y (en) | 2008-06-18 |
Family
ID=39520401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200389871U Expired - Lifetime CN201075142Y (en) | 2007-06-29 | 2007-06-29 | Light central tube type optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075142Y (en) |
-
2007
- 2007-06-29 CN CNU2007200389871U patent/CN201075142Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080618 |