CN216901082U - Full-dry optical fiber ribbon optical cable - Google Patents
Full-dry optical fiber ribbon optical cable Download PDFInfo
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- CN216901082U CN216901082U CN202220510349.XU CN202220510349U CN216901082U CN 216901082 U CN216901082 U CN 216901082U CN 202220510349 U CN202220510349 U CN 202220510349U CN 216901082 U CN216901082 U CN 216901082U
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- fiber ribbon
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Abstract
The utility model discloses a full-dry optical fiber ribbon optical cable which comprises an outer sheath, a dry water-blocking tape, an optical fiber ribbon matrix and two nonmetal reinforcing parts, wherein the dry water-blocking tape is coated on the optical fiber ribbon matrix, and the outer sheath is coated on the outer side of the dry water-blocking tape; the two nonmetal reinforcing pieces are embedded on the side wall of the outer sheath, and the cross section of each nonmetal reinforcing piece is arc-shaped; gaps exist at the end parts, close to each other, of each of the two non-metal reinforcing parts; two gaps are uniformly arranged on the outer side wall of the outer sheath in the circumferential direction, and each gap extends along the axial direction of the outer sheath. When the optical fiber ribbon matrix is connected, the optical fibers of one optical fiber ribbon can be welded at one time, the connection efficiency is greatly improved, the more the number of the cores of each optical fiber ribbon is, the higher the connection efficiency is, the two arc-shaped nonmetal reinforcing parts surround the optical fiber ribbon matrix, the optical fiber ribbon matrix can be well protected, and the arrangement of the notch enables the outer sheath to be easily stripped.
Description
Technical Field
The utility model belongs to the field of optical cables, and particularly relates to a full-dry optical fiber ribbon optical cable.
Background
With the development of optical communication, big data, cloud computing and the like, people have an increasing demand for optical fiber transmission. With the evolution of optical communication networks towards high capacity and high speed, the technology of optical fiber cables is also continuously promoted. How to further promote pipeline resource utilization rate, optimize the optical cable structure as far as possible under the prerequisite that does not influence transmission efficiency and capacity is the key problem that the optical fiber cable trade was concerned about. Under the trend, the optical fiber ribbon optical cable technology is developed, and the optical fiber ribbon optical cable refers to an optical cable with an optical fiber ribbon structure in the optical cable, and has the characteristics of integration, reduction of pipeline resource occupation, easiness in fusion welding and the like.
The construction convenience and the construction efficiency of the optical cable are more and more emphasized by construction units, and when the optical cable is connected and branched, a constructor needs the optical cable to be simple in structure and easy to strip so as to improve the construction efficiency. The optical cable filled with the common factice is not convenient to transport and lay due to the fact that the optical cable is heavy, the factice filled in the optical cable needs to be cleaned when the optical cable is connected, connection efficiency of the optical fiber ribbon is affected, labor and cleaning materials are consumed in the cleaning process, and construction cost is high.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects or improvement requirements of the prior art, the utility model provides a full-dry optical fiber ribbon cable which has the advantages of high optical fiber density, easiness in construction, short splicing time, convenience in maintenance, low engineering cost, high signal density and the like.
To achieve the above object, according to one aspect of the present invention, there is provided an all-dry optical fiber ribbon cable, comprising an outer sheath, a dry water-blocking tape, an optical fiber ribbon matrix, and two non-metallic reinforcing members, wherein:
the dry-type water-blocking tape is coated on the optical fiber ribbon matrix, and the outer sheath is coated on the outer side of the dry-type water-blocking tape;
the two nonmetal reinforcing pieces are embedded on the side wall of the outer sheath, each nonmetal reinforcing piece extends along the axial direction of the outer sheath, and the cross section of each nonmetal reinforcing piece is arc-shaped;
on the cross section of the all-dry optical fiber ribbon cable, the cross sections of the two nonmetal reinforcing parts are distributed on the same circular ring, and the distance exists between the end parts, close to each other, of the two nonmetal reinforcing parts;
two notches are uniformly arranged on the outer side wall of the outer sheath in the circumferential direction so as to tear the outer sheath open, and each notch extends along the axial direction of the outer sheath.
Preferably, the dry water-blocking tape is wrapped longitudinally over the optical fiber ribbon matrix.
Preferably, the optical fiber number of the optical fiber ribbon matrix is 12-144.
Preferably, the outer sheath is made of PE material or flame retardant material.
Preferably, the non-metallic reinforcement is an FRP tape.
Preferably, the number of rows and columns of the ribbon matrix is equal, so that the cross section of the ribbon matrix is rectangular.
Preferably, the inner lumen of the outer sheath is square;
a gap exists between the dry water-blocking tape and the outer sheath, and a gap also exists between the dry water-blocking tape and the optical fiber ribbon matrix.
Preferably, the outer diameter of the outer sheath is 6.5mm, the optical fiber ribbon matrix is provided with 12-144 optical fibers, and the diameter of each optical fiber is 0.245 mm;
an optical fiber ribbon consisting of 12 optical fibers, having a thickness of 0.32mm and a width of 3.2 mm;
a ribbon matrix having a width of 3.2mm and a thickness of 3.84mm is made up of up to 12 layers of ribbons.
Preferably, the outer sheath is subjected to vacuum sizing treatment by a vacuum sizing water tank.
Preferably, each of the notches is triangular in cross-section.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
1) according to the all-dry optical fiber ribbon cable, the two nonmetal reinforcing parts are distributed on the circular ring and surround the optical fiber ribbon matrix, so that the optical fiber ribbon matrix can be well protected, and the rat can be effectively prevented; in addition, the outer sheath is also provided with a notch, and the outer sheath can be torn by pressing the notch with hands, so that the cable opening is not needed.
2) According to the all-dry optical fiber ribbon cable, when the optical fiber ribbon matrix is spliced, the optical fiber of one optical fiber ribbon can be welded at one time, so that the splicing efficiency is greatly improved, and the more the number of cores of each optical fiber ribbon is, the higher the splicing efficiency is.
3) The full-dry optical fiber ribbon cable is simple in structure, the nonmetal reinforcing part is arranged in the outer sheath, and the nonmetal reinforcing part can effectively control the post shrinkage of the sheath material, so that the problem of unstable extra length of a common optical fiber ribbon large-sheath cable is solved, the diameter and the weight of the optical cable are reduced, and the mechanical performance is guaranteed.
4) The all-dry optical fiber ribbon cable has the advantages of large core number, small outer diameter and high optical fiber density, meets the requirement of a high-density network, and improves the utilization rate of laying resources.
5) The all-dry optical fiber ribbon cable is easy to strip, convenient to operate and capable of improving construction efficiency.
6) The all-dry optical fiber ribbon optical cable is of a metal-free structure, has electromagnetic interference resistance and lightning protection performance, is convenient to construct and saves cost.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, an all-dry optical fiber ribbon cable includes an outer sheath 1, two nonmetal reinforcements 2, a dry water-blocking tape 3 and an optical fiber ribbon matrix 4, wherein:
the dry type water-blocking tape 3 is coated on the optical fiber ribbon matrix 4, and the dry type water-blocking tape 3 is preferably longitudinally coated on the optical fiber ribbon matrix 4. Compared with the wrapping water-blocking tape, the dry water-blocking tape 3 of the longitudinal wrapping can greatly improve the production efficiency. The optical fiber ribbon matrix 4 is used as an optical unit and can be spliced by a ribbon optical fiber splicer. The number of rows and columns of the ribbon matrix 4 is preferably equal, so that the ribbon matrix 4 has a rectangular cross-section. The optical fiber ribbon matrix 4 preferably has 12-144 optical fibers, the diameter of each optical fiber is 0.245mm, the thickness of the optical fiber ribbon composed of 12 optical fibers is 0.32mm (the optical fiber ribbon is coated with a layer of resin when being formed into the optical fiber ribbon), the width of the optical fiber ribbon matrix 4 is 3.2mm, and the optical fiber ribbon matrix 4 with the width of 3.2mm and the thickness of 3.84mm is formed by 12 layers of optical fiber ribbons. The optical fiber ribbon cable of the utility model is colored by a plurality of optical fibers and has the advantages of high optical fiber density, easy construction, short splicing time, convenient maintenance, low engineering cost, high signal density and the like. The optical fiber ribbon matrix 4 has high splicing efficiency, so that the splicing cost of each connector is low; this advantage is more pronounced the greater the core count of the ribbon.
The outer sheath 1 covers the outer side of the dry type water blocking tape 3, and the outer diameter of the outer sheath 1 is preferably 6.5 mm. The outer sheath 1 is made of PE material or flame retardant material.
The two nonmetal reinforcing pieces 2 are embedded on the side wall of the outer sheath 1, each nonmetal reinforcing piece 2 extends along the axial direction of the outer sheath 1, each nonmetal reinforcing piece 2 is arc-shaped, and the inner diameter and the outer diameter of each nonmetal reinforcing piece 2 are equal; the nonmetal reinforcing part 2 adopts an FRP belt, has the performances of electromagnetic interference resistance and lightning stroke resistance, is lighter in weight and can be used for overhead.
On the cross section of the all-dry optical fiber ribbon cable, the cross sections of the two nonmetal reinforcing parts 2 are distributed on the same circular ring, the end parts, close to each other, of the two nonmetal reinforcing parts 2 are spaced, and the two nonmetal reinforcing parts 2 are spaced at the end parts, close to each other, of the two nonmetal reinforcing parts. And thereby can carry out fine protection, especially can prevent the mouse to optical fiber ribbon matrix 4, when the outside pressurized of optical cable moreover, two nonmetal stiffeners 2 can resist compression, protect inside optical fiber ribbon matrix 4, and the optical cable can the direct-burried use.
Two notches 11 are uniformly arranged on the outer side wall of the outer sheath 1 in the circumferential direction so as to tear the outer sheath 1, the notches 11 are symmetrically arranged relative to the center of the outer sheath 1, and each notch 11 extends along the axial direction of the outer sheath 1 and is arranged corresponding to each position at intervals. When the optical cable needs to be torn, the outer sheath 1 can be held by hands and then the outer sheath 1 is broken off; or, the cutter can be used for cutting the outer sheath to a certain depth along the radial direction of the outer sheath, so that the outer sheath 1 can be more easily broken.
The full-dry optical fiber ribbon optical cable is simple in structure, the nonmetal reinforcing parts 2 are arranged in the outer sheath 1, the overall diameter and weight of the optical cable can be reduced, the influence of PE material shrinkage on the optical fiber ribbon matrix 4 can be reduced by the aid of the two nonmetal reinforcing parts 2, the overall mechanical performance of the optical cable is guaranteed, the optical cable is of a full-medium metal-free structure, has electromagnetic interference resistance and lightning protection performance, and can be used for overhead installation; the dry-type water-blocking tape 3 longitudinally wraps the optical fiber ribbon matrix 4 to avoid the use of ointment, the ointment does not need to be wiped when the optical fiber ribbon of the optical fiber ribbon matrix 4 is connected, the use of ointment cleaning agent is avoided, and the welding efficiency of the optical fiber ribbon is improved; nonmetal reinforcement 2 and breach 11 are embedded to oversheath 1, and oversheath 1 is thinner easily to be peeled off, and single can operate, has improved the efficiency of construction.
Further, the inner lumen of the outer sheath is square; a gap exists between the dry water-blocking tape and the outer sheath, and a gap also exists between the dry water-blocking tape and the optical fiber ribbon matrix. The gap does not need to be continuous, does not need to be a 360-degree all-directional gap, and only needs to be left as a moving space. Compared with other conventional optical fiber ribbon cables, the full-dry optical fiber ribbon cable has the greatest difference that the process of secondary plastic coating before the outer sheath 1 is formed is reduced, sleeves do not need to be arranged in the outer sheath 1 and outside the optical fiber ribbon matrix 4 (the outer sheath and the sleeves of the conventional optical fiber ribbon cable are both circular rings, a layer of sleeve is arranged outside the optical fiber ribbon matrix to protect the optical fiber ribbon matrix and prevent the structure outside the sleeve from extruding and damaging optical fibers), the dry water-blocking tape 3 is directly coated on the optical fiber ribbon matrix 4, and after the longitudinal coating process of the dry water-blocking tape 3 is completed, the outer sheath 1 is directly formed. When the outer sheath 1 is manufactured, the outer sheath 1 which is preliminarily molded on a machine head of the extruding machine needs to be subjected to vacuum sizing treatment through a vacuum sizing water tank, the vacuum sizing treatment can cool the outer sheath 1, the outer sheath 1 with the designed size and the stable structure is obtained through a process of a mold and the vacuum water tank, the outer sheath 1 is guaranteed to be provided with a set square hollow space, and a first gap 5 exists between the outer sheath 1 and the dry water blocking tape 3, namely the outer sheath 1 is not tightly sleeved on the dry water blocking tape 3, a movable space exists between the outer sheath and the dry water blocking tape 3, a second gap 6 also exists between the optical fiber ribbon matrix 4 and the dry water blocking tape 3, namely the dry water blocking tape 3 is not tightly sleeved on the optical fiber ribbon matrix 4, and a movable space also exists between the outer sheath and the dry water blocking tape 3. Especially, under the condition that the number of rows and the number of columns of the optical fiber ribbon matrix 4 are equal and rectangular, the vacuum sizing treatment is especially important, and the outer sheath 1 can be ensured not to extrude and damage the optical fiber ribbon matrix 4 inside. The full-dry optical fiber ribbon optical cable cancels a secondary plastic coating process, and can ensure that the optical cable has thinner diameter and larger core density under the condition of not influencing the performance of the optical cable.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the utility model, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a totally dry optical fiber ribbon cable which characterized in that, includes oversheath, dry-type waterproofing area, optical fiber ribbon matrix and two nonmetal reinforcements, wherein:
the dry-type water-blocking tape is coated on the optical fiber ribbon matrix, and the outer sheath is coated on the outer side of the dry-type water-blocking tape;
the two nonmetal reinforcing pieces are embedded on the side wall of the outer sheath, each nonmetal reinforcing piece extends along the axial direction of the outer sheath, and the cross section of each nonmetal reinforcing piece is arc-shaped;
on the cross section of the all-dry optical fiber ribbon cable, the cross sections of the two nonmetal reinforcing parts are distributed on the same circular ring, and the distance exists between the end parts, close to each other, of the two nonmetal reinforcing parts;
two notches are uniformly arranged on the outer side wall of the outer sheath in the circumferential direction so as to tear the outer sheath open, and each notch extends along the axial direction of the outer sheath.
2. The all-dry fiber ribbon cable according to claim 1, wherein the dry water-blocking tape is longitudinally wrapped on the fiber ribbon matrix.
3. The all-dry fiber ribbon cable of claim 1, wherein the number of fibers of the fiber ribbon matrix is 12-144.
4. The fully-dry fiber ribbon cable according to claim 1, wherein the outer jacket is made of PE material or flame retardant material.
5. The all-dry fiber ribbon cable according to claim 1, wherein the non-metallic strength member is an FRP ribbon.
6. The all-dry fiber ribbon cable of claim 1, wherein the number of rows and columns of the fiber ribbon matrix are equal, such that the cross-section of the fiber ribbon matrix is rectangular.
7. The all-dry fiber ribbon cable of claim 6, wherein the inner cavity of the outer jacket is square;
a gap exists between the dry water-blocking tape and the outer sheath, and a gap also exists between the dry water-blocking tape and the optical fiber ribbon matrix.
8. The all-dry fiber ribbon cable of claim 1, wherein the outer jacket has an outer diameter of 6.5mm, the fiber ribbon matrix has 12-144 optical fibers, and the optical fibers have a diameter of 0.245 mm;
an optical fiber ribbon consisting of 12 optical fibers, having a thickness of 0.32mm and a width of 3.2 mm;
a ribbon matrix having a width of 3.2mm and a thickness of 3.84mm is made up of up to 12 layers of ribbons.
9. The all-dry fiber ribbon cable of claim 1, wherein the outer jacket is vacuum sized with a vacuum sizing water trough.
10. The all-dry fiber ribbon cable according to claim 1, wherein each of the notches has a triangular cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220510349.XU CN216901082U (en) | 2022-03-10 | 2022-03-10 | Full-dry optical fiber ribbon optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220510349.XU CN216901082U (en) | 2022-03-10 | 2022-03-10 | Full-dry optical fiber ribbon optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216901082U true CN216901082U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220510349.XU Active CN216901082U (en) | 2022-03-10 | 2022-03-10 | Full-dry optical fiber ribbon optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216901082U (en) |
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2022
- 2022-03-10 CN CN202220510349.XU patent/CN216901082U/en active Active
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