CN204903836U - Block water central tube optical cable of oleamen of packing - Google Patents
Block water central tube optical cable of oleamen of packing Download PDFInfo
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- CN204903836U CN204903836U CN201520721979.1U CN201520721979U CN204903836U CN 204903836 U CN204903836 U CN 204903836U CN 201520721979 U CN201520721979 U CN 201520721979U CN 204903836 U CN204903836 U CN 204903836U
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- optical cable
- armor
- greasy
- preventing water
- central tube
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Abstract
The utility model discloses a block water central tube optical cable of oleamen of packing belongs to the optical cable technique, present oleamen filled type block water the structure central tube optical cable finished product down the loose sleeve pipe in the optical cable of machine back understand back in the armor and contract, optical cable tensile properties is bad, the utility model discloses a pine sleeve pipe, armor, restrictive coating, the pine cover is intraductal to have at least optic fibre and packing to have fine cream, packs the oleamen that blocks water between pine sleeve pipe and the armor, and the restrictive coating surrounds in the outside of armor, is bondd together by spaced adhesive material between pine sleeve pipe and the armor. Especially, the oleamen that blocks water distributes with adhesive material in turn, and adhesive material is punctiform interval distribution. The utility model discloses when packing the oleamen that blocks water between pine sleeve pipe and armor, bond together by spaced adhesive material between pine sleeve pipe and the armor, guarantee the finished product down machine back optical cable the water permeability can and the optical cable in loose sleeve pipe can not return in the armor and contract, guarantee the off -the -shelf mechanical properties of optical cable.
Description
Technical field
The utility model belongs to optical cable technology, specifically a kind of central tube type optical cable of filling greasy for preventing water.
Background technology
Central tube type optical cable appears at the eighties in 20th century the earliest, and through production for many years and rig-site utilization, current central tube type optical cable is listed as three kinds of topmost cable configuration forms with layer-stranding cable and slotted core cable.
Central tube type optical cable; optical fiber is inserted in spiral fashion pine cover (or being beam tube); fine cream (waterproofing compound) is filled for the protection of optical fiber in Loose tube; Loose tube applies one deck material water-proof material and one deck armor outward; two parallel steel wires are placed in armor both sides, then outside armor, extrude restrictive coating form.
The permeability performance of optical cable is one of most important judge performance of optical cable, is also one of key factor ensureing cable lifetime.
The mode of blocking water of current optical cable is divided into two kinds: dry type blocks water and ointment filled type blocks water, and blocks water with the optical cable of dry type stop water as many at present for central tube type optical cable cable core.
The optical cable of dry type stop water comprises and adopts the mode of waterstop and water blocking yarn to block water, primary structure is at Loose tube vertical bag one deck waterstop outward when Loose tube is produced, or be outer around putting one or a few water blocking yarn at Loose tube, then indulge bag armor (steel band) outside and extrude restrictive coating and form finished product.
Ointment filled type stop water is when Loose tube is produced, and allows the plastic tape that forms Loose tube make plastic tape outer with ointment and then vertical bag armor (metal tape) and extrude restrictive coating formation finished product outside by ointment groove.But because ointment has good lubrication, to cause under finished product Loose tube after machine may bounce back in armor, cause properties of optical fiber cable bad.
Dry type is adopted to block water, owing to limiting by relations such as waterstop (or water blocking yarn) length, in Loose tube production run, need to carry out reduction of speed every a segment distance to continue waterstop or water blocking yarn, cause and produce upper trouble, and once broken belt (broken yarn) phenomenon occurs waterstop (or water blocking yarn), easily cause disconnected cable, cause damage, increase production risk, and adopt waterstop (or water blocking yarn) technique to compare due to the reason cable outer diameter of material to use the comparatively thick of filled type, waste sheath material.
Ointment filled type stop water, because ointment has good lubrication, to cause under finished product Loose tube after machine may bounce back in armor, causes optical cable tensile property bad.And in use optical cable is due to the change of ambient temperature, the differing of performance of expanding with heat and contract with cold of each material in optical cable, also may cause that Loose tube bounces back, Loose tube inner fiber is stressed, thus affects communication performance.
Utility model content
The technical assignment of the technical problems to be solved in the utility model and proposition is the defects such as optical cable tensile property is bad that the central tube type optical cable overcoming existing ointment filled type stop water exists, a kind of central tube type optical cable of filling greasy for preventing water is provided, while guaranteeing to meet optical cable permeability performance with ointment, the Loose tube under guarantee finished product after machine in optical cable can not bounce back in armor.
For reaching the purpose of this utility model, the central tube type optical cable of filling greasy for preventing water of the present utility model comprises Loose tube, armor, restrictive coating, there is at least one optical fiber in described Loose tube and be filled with fine cream, greasy for preventing water is filled with between described Loose tube and armor, described restrictive coating is enclosed in the outside of described armor, it is characterized in that: together with being bondd by the binding material at interval between described Loose tube and armor.
As optimization technique means: described armor is wound on the outside of described Loose tube in the shape of a spiral by metal tape or composite steel-plastic belt.
As optimization technique means: described greasy for preventing water and described binding material are alternately distributed.
As optimization technique means: maintain spacing between described greasy for preventing water and described binding material.Or described greasy for preventing water and described binding material adjoin.Or described binding material is distributed in described greasy for preventing water.
As optimization technique means: described binding material is that point-like is spaced apart.
As optimization technique means: the ratio of the distribution length of described binding material and the distribution length of described greasy for preventing water is 1:(6-12).
As optimization technique means: be distributed with steel wire in described restrictive coating.
As optimization technique means: described Loose tube is reeled in the shape of a spiral by plastic tape and forms.
The beneficial effects of the utility model are: mainly improve the mode of blocking water of central beam tube type and improve, fill greasy for preventing water between Loose tube and armor while, together with being bondd by the binding material at interval between Loose tube and armor, ensure that the Loose tube in the permeability performance of optical cable after machine under finished product and optical cable can not bounce back in armor, guarantee the mechanical property of optical cable finished product.
And spraying waterproof ointment technique can be adopted, simplify and produce, reduce the external diameter of optical cable and then reduce fiber optic cable manufacture difficulty and manufacturing cost.Effectively can also reduce optical cable manipulation strength in process of production and greasy for preventing water use amount, reduce cable outer diameter simultaneously, and then reduce loss and production cost.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of the utility model central tube type optical cable;
The greasy for preventing water of metal tape inside surface, a kind of distribution schematic diagram of binding material when Fig. 2 is the production of the utility model armor;
At the process schematic representation of metal tape inside surface successively spraying waterproof ointment, binding material when Fig. 3 is the production of the utility model armor;
Number in the figure illustrates: 1-optical fiber, the fine cream of 2-, 3-Loose tube, 4-greasy for preventing water, 5-binding material, 6-armor, 7-steel wire, 8-restrictive coating, 9-metal tape, 10-sprays production control system, 11-drip production control system, the distribution length of L1-binding material, the distribution length of L2-greasy for preventing water.
Embodiment
Below in conjunction with Figure of description, the utility model is described further.
The central tube type optical cable of filling greasy for preventing water of the present utility model, as shown in Figure 1, it comprises Loose tube 3, armor 6, restrictive coating 8, be distributed with multifiber 1 in Loose tube 3 and be filled with fine cream 2, greasy for preventing water 4 is filled with between Loose tube 3 and armor 6, restrictive coating 8 is enclosed in the outside of armor 6, is distributed with steel wire 7 in restrictive coating 8, together with being bondd by the binding material 5 at interval between Loose tube 3 and armor 6.
Concrete, armor 6 is wound on the outside (see Fig. 3) of Loose tube 3 in the shape of a spiral by metal tape 9 or composite steel-plastic belt.Greasy for preventing water and binding material can be alternately distributed, and can maintain spacing between, and greasy for preventing water also can adjoin with binding material, and binding material also can be distributed in greasy for preventing water.Binding material is that point-like is spaced apart.The ratio of the distribution length L1 of binding material and the distribution length L2 of greasy for preventing water is 1:(6-12), this ratio is withdrawn deposit on the metal tape 9 shown in Fig. 2.Loose tube is reeled in the shape of a spiral by plastic tape and forms.
When armor operation is produced, utilize spraying production control system 10 and drip production control system 11 intermittence at metal tape inside surface successively spraying waterproof ointment and drip binding material, again metal tape 9 is wound on outside Loose tube 3 in the shape of a spiral and forms armor 6, namely between Loose tube 3 and armor 6, be filled with greasy for preventing water 4 and by binding material 5, Loose tube 3 and armor 6 bondd, while use greasy for preventing water meets optical cable permeability performance, bonding material is utilized Loose tube and armor to be bondd, the problem of Loose tube retraction after effective solution finished product, guarantee optical cable tensile property and temperature characterisitic.
During concrete enforcement: see Fig. 3, spraying production control system 10, by installing the distance that pulse transducer passes through for calculating metal tape on metal tape 9 angle sheave, is spaced a distance the greasy for preventing water 4 spraying certain distance on the inside surface of metal tape; In like manner, drip production control system 11 is also spaced a distance drip binding material 5 on metal tape 9, the gap of position between adjacent two sections of greasy for preventing water of drip binding material.Except outside the mode that side shown in Fig. 3 is spaced apart, when allowing, as greasy for preventing water mends the drip of image binding material, then greasy for preventing water also can adjoin with binding material, and binding material also can be distributed in greasy for preventing water.
Suitable first spraying waterproof ointment in process of production, drip binding material again, with metal tape after avoiding first drip binding material again by affecting (by means of pressurized air during spraying production control system spraying waterproof ointment) by air-blowing during spraying production control system, solidify ahead of time cannot metal tape is wound in the shape of a spiral Loose tube outward time play adhesive effect.Described binding material can select hot melt adhesive.
Claims (10)
1. fill the central tube type optical cable of greasy for preventing water for one kind, comprise Loose tube (3), armor (6), restrictive coating (8), there is at least one optical fiber (1) in described Loose tube (3) and be filled with fine cream (2), greasy for preventing water (4) is filled with between described Loose tube (3) and armor (6), described restrictive coating (8) is enclosed in the outside of described armor (6), it is characterized in that: together with being bondd by the binding material (5) at interval between described Loose tube (3) and armor (6).
2. the central tube type optical cable of filling greasy for preventing water according to claim 1, is characterized in that: described armor (6) is wound on the outside of described Loose tube (3) in the shape of a spiral by metal tape or composite steel-plastic belt.
3. the central tube type optical cable of filling greasy for preventing water according to claim 1, is characterized in that: described greasy for preventing water (4) and described binding material (5) are alternately distributed.
4. the central tube type optical cable of filling greasy for preventing water according to claim 1, is characterized in that: maintain spacing between described greasy for preventing water (4) and described binding material (5).
5. the central tube type optical cable of filling greasy for preventing water according to claim 1, is characterized in that: described greasy for preventing water and described binding material adjoin.
6. the central tube type optical cable of filling greasy for preventing water according to claim 1, is characterized in that: described binding material is distributed in described greasy for preventing water.
7. the central tube type optical cable of filling greasy for preventing water according to claim 1, is characterized in that: described binding material (5) is spaced apart in point-like.
8. the central tube type optical cable of filling greasy for preventing water according to claim 1, is characterized in that: the distribution length (L1) of described binding material is 1:(6-12 with the ratio of the distribution length (L2) of described greasy for preventing water).
9. the central tube type optical cable of filling greasy for preventing water according to claim 1, is characterized in that: be distributed with steel wire (7) in described restrictive coating (8).
10. the central tube type optical cable of filling greasy for preventing water according to claim 1, is characterized in that: described Loose tube (3) is reeled in the shape of a spiral by plastic tape and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520721979.1U CN204903836U (en) | 2015-09-17 | 2015-09-17 | Block water central tube optical cable of oleamen of packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520721979.1U CN204903836U (en) | 2015-09-17 | 2015-09-17 | Block water central tube optical cable of oleamen of packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204903836U true CN204903836U (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520721979.1U Active CN204903836U (en) | 2015-09-17 | 2015-09-17 | Block water central tube optical cable of oleamen of packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204903836U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111624717A (en) * | 2018-12-28 | 2020-09-04 | 杭州富通通信技术股份有限公司 | Corrosion-resistant optical cable |
| CN113204085A (en) * | 2021-05-07 | 2021-08-03 | 杭州富通通信技术股份有限公司 | Optical cable processing method |
-
2015
- 2015-09-17 CN CN201520721979.1U patent/CN204903836U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111624717A (en) * | 2018-12-28 | 2020-09-04 | 杭州富通通信技术股份有限公司 | Corrosion-resistant optical cable |
| CN111624717B (en) * | 2018-12-28 | 2022-06-21 | 杭州富通通信技术股份有限公司 | Corrosion-resistant optical cable |
| CN113204085A (en) * | 2021-05-07 | 2021-08-03 | 杭州富通通信技术股份有限公司 | Optical cable processing method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |