CN202142350U - Concentric type full-dry leaky photoelectric composite cable - Google Patents
Concentric type full-dry leaky photoelectric composite cable Download PDFInfo
- Publication number
- CN202142350U CN202142350U CN201120295889U CN201120295889U CN202142350U CN 202142350 U CN202142350 U CN 202142350U CN 201120295889 U CN201120295889 U CN 201120295889U CN 201120295889 U CN201120295889 U CN 201120295889U CN 202142350 U CN202142350 U CN 202142350U
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- layer
- concentric type
- optical fibers
- optical fiber
- water blocking
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Abstract
The utility model discloses a concentric type full-dry leaky photoelectric composite cable comprising optical fibers, wherein a loose tube for cladding the optical fibers is arranged outside the optical fibers and a plastic cushion layer, an inner conductor layer, a waterproof layer, an outer conductor layer and a sheathing layer are sequentially arranged on the loose tube from inside to outside. According to the utility model, a multi-layer structure is adopted so as to play better waterproof, dampproof and compressive resistance roles on the optical fibers and cable conductors to ensure that the resource cost is saved; the effect of transmitting photoelectric signals all at once can be achieved through erecting single cable to ensure that the construction cost is reduced and the construction efficiency is increased; and the multi-layer waterproof structure layer and waterproof yarn are utilized to replace factice and complete the waterproofness and dampproofness of the optical fibers, therefore, the adverse effect on the optical fiber transmission performance and the disadvantage of pollution to the environment, caused by using the factice, are avoided.
Description
Technical field
The utility model relates to the absolutely dry optoelectrical cable of sewing of concentric type.
Background technology
Tradition is dredged the braiding leaky coaxial cable, because the metal tape that outer conductor layer does not have the Weaving type coaxial cable to be coated causes humidity resistance unstable, for the leaky cable long-term stable operation is brought hidden danger.In addition, the traditional communication transmission cable generally can only transmission of electric signals or light signal, function singleness; Photosignal transmits simultaneously if desired, then need set up many single lines, has not only increased the operating expenses of engineering; And it is complicated to cause constructing, and has strengthened difficulty of construction.And the existing in the market optoelectrical cable of sewing helps the waterproof and dampproof factice for filling mode that generally adopts of optical fiber, owing to contain a spot of hydrone in the ointment, particularly hydroxide ion in the hydrone is prone to hydrogen evolution phenomenon takes place, and influences optical fiber transmission property; Secondly, adopt the ointment filling mode, construction is made troubles and ointment retains external environment with being connected, the chemical substance that comprises in the ointment back that in external environment, reacts is prone to produce secondary environmental pollution.
The utility model content
The technical problem that the present invention will solve provides the full end face of a kind of clean type and blocks water; Can transmit the optoelectrical cable of photosignal, saving conduit resource, saving production cost simultaneously, for the operation and maintenance of communication construction unit provides a kind of more reasonably technical solution.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is that concentric type is absolutely dry sews optoelectrical cable, it is characterized in that: comprise optical fiber; Be provided with the loose sleeve pipe of clad optical fiber in outer fiber; On loose sleeve pipe, be provided with plastic layer, inner conductor layer, water blocking layer, outer conductor layer and restrictive coating from inside to outside successively, place the absolutely dry position of sewing the optoelectrical cable center of concentric type to optical fiber like this, concentric type absolutely dry sew optoelectrical cable when receiving the external force effect optical fiber can obtain the protection of its outside sandwich construction; To avoid the direct infringement optical fiber of external force, certain shock-absorbing capacity can be arranged to bearing external force; Fiber outer layer is surrounded by loose sleeve pipe, plastic layer, water blocking layer, these waterproof and dampproof structure sheafs of restrictive coating, and optical fiber itself is played good moistureproof and waterproof effect; Outer conductor layer is provided with restrictive coating outward, and the preferred PE material of said restrictive coating, has not only guaranteed its waterproof moisture-proof effect, and the insulating properties of PE restrictive coating itself and radiation resistance and corrosion resistance make cable also obtain protection preferably; Optoelectrical cable can be accomplished the transmission of photosignal simultaneously, has saved resource and construction cost, and this comprehensive cable structure has been forgone and used the adverse effect and drawback that environment polluted of ointment to optical fiber transmission property simultaneously.
As a kind of improvement, said water blocking layer comprises physical blowing layer and water blocking tape layer, and double-deck waterproof and dampproof, effect is better.
As a kind of improvement, said physical blowing layer is positioned at the water blocking tape layer outside.
As a kind of improvement, said water blocking tape layer is positioned at the physical blowing layer outside.
As a kind of improvement, be provided with at least one water blocking yarn between said optical fiber and the loose casing wall, keep loose sleeve pipe inner drying environment.
As a kind of improvement, have slotted eye on the said outer conductor layer, with the shield effectiveness that guarantees, be beneficial to and guarantee the high efficiency of transmission of signal.
As a kind of improvement, said outer conductor layer is that plain conductor is dredged the braided outer conductor layer, and preferred bare copper wire is dredged the braided outer conductor layer.
Concentric type is absolutely dry sews optoelectrical cable and can reach the effect that photosignal transmits simultaneously; Sandwich construction has all played waterproof and dampproof preferably and lateral pressure resistant power and impact force action to optical fiber and cable conductor; Saved resources costs; Single setting up can reach the effect that photosignal transmits together, also reduced construction cost, improved efficiency of construction; Multilayer flashing structure sheaf and water blocking yarn substitute the waterproof and dampproof work that ointment is accomplished optical fiber, have forgone and have used the adverse effect and drawback that environment polluted of ointment to optical fiber transmission property.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified:
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Embodiment
The structural representation of a kind of embodiment of the utility model as shown in Figure 1; Concentric type is absolutely dry sews optoelectrical cable and comprises optical fiber 8; Be coated with loose sleeve pipe 7 in optical fiber 8 outsides, on loose sleeve pipe, be provided with plastic layer 6, inner conductor layer 5, water blocking layer 10, outer conductor layer 2 and restrictive coating 1 from inside to outside successively, wherein restrictive coating is preferably the PE material; Outer conductor layer is that plain conductor is dredged the establishment outer conductor layer, and preferred bare copper wire is dredged the establishment outer conductor layer; Said water blocking layer 10 comprises physical blowing layer 4 and water blocking tape layer 3; Optical fiber just is placed in the absolutely dry center of sewing optoelectrical cable of concentric type like this; Make that concentric type is absolutely dry sews the protection that optoelectrical cable optical fiber when receiving the external force effect can obtain its outside sandwich construction; To avoid the infringement of external force; Fiber outer layer comprises these waterproof and dampproof structure sheafs of loose sleeve pipe, plastic layer, water blocking layer and restrictive coating in addition, and optical fiber itself is played good moistureproof and waterproof effect, wherein the preferred PE material of restrictive coating; Said physical blowing layer 4 is positioned at water blocking tape layer 3 outsides; Be provided with at least one water blocking yarn 9 between said optical fiber 8 and loose sleeve pipe 7 inwalls, keep loose sleeve pipe inner drying environment; Have slotted eye on the outer conductor layer 2, the shield effectiveness that can guarantee.
In addition, the water blocking tape layer in the foregoing description 3 can also be provided in a side of the outside of physical blowing layer 4.
Except that above-mentioned preferred embodiment; The utility model also has other execution mode; Those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from the spirit of the utility model, all should belong to the defined scope of the utility model accompanying claims.
Claims (7)
1. the absolutely dry optoelectrical cable of sewing of concentric type; It is characterized in that: comprise optical fiber (8); Be provided with the loose sleeve pipe (7) of clad optical fiber in optical fiber (8) outside, on loose sleeve pipe (7), be provided with plastic layer (6), inner conductor layer (5), water blocking layer (10), outer conductor layer (2) and restrictive coating (1) from inside to outside successively.
2. the absolutely dry optoelectrical cable of sewing of concentric type according to claim 1 is characterized in that: said water blocking layer (10) comprises physical blowing layer (4) and water blocking tape layer (3).
3. the absolutely dry optoelectrical cable of sewing of concentric type according to claim 2 is characterized in that: said physical blowing layer (4) is positioned at water blocking tape layer (3) outside.
4. the absolutely dry optoelectrical cable of sewing of concentric type according to claim 2 is characterized in that: said water blocking tape layer (3) is positioned at physical blowing layer (4) outside.
5. the absolutely dry optoelectrical cable of sewing of concentric type according to claim 1 is characterized in that: be provided with at least one water blocking yarn (9) between said optical fiber (8) and loose sleeve pipe (7) inwall.
6. the absolutely dry optoelectrical cable of sewing of concentric type according to claim 1 is characterized in that: said outer conductor layer has slotted eye on (2).
7. according to claim 1 or the absolutely dry optoelectrical cable of sewing of 6 described concentric types, it is characterized in that: said outer conductor layer (2) is dredged the braided outer conductor layer for plain conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120295889U CN202142350U (en) | 2011-08-16 | 2011-08-16 | Concentric type full-dry leaky photoelectric composite cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120295889U CN202142350U (en) | 2011-08-16 | 2011-08-16 | Concentric type full-dry leaky photoelectric composite cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202142350U true CN202142350U (en) | 2012-02-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120295889U Expired - Fee Related CN202142350U (en) | 2011-08-16 | 2011-08-16 | Concentric type full-dry leaky photoelectric composite cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202142350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109742A (en) * | 2017-12-15 | 2018-06-01 | 中天科技海缆有限公司 | Submarine optical fiber cable and preparation method thereof |
-
2011
- 2011-08-16 CN CN201120295889U patent/CN202142350U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109742A (en) * | 2017-12-15 | 2018-06-01 | 中天科技海缆有限公司 | Submarine optical fiber cable and preparation method thereof |
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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: 20120208 Termination date: 20140816 |
|
| EXPY | Termination of patent right or utility model |