CN216901069U

CN216901069U - Two core fiber optic cable subassemblies of toughness

Info

Publication number: CN216901069U
Application number: CN202123243545.XU
Authority: CN
Inventors: 马才华; 李文风; 张英; 钱叶
Original assignee: Jiangsu Trigiant Sensing Technology Co ltd
Current assignee: Jiangsu Trigiant Sensing Technology Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-07-05
Anticipated expiration: 2031-12-22

Abstract

The utility model relates to the technical field of optical fiber communication equipment, in particular to a tough two-core optical fiber cable assembly which comprises an A end, a B end and an optical cable, wherein the A end comprises a first corrugated pipe, a DLC/UPC connector, a first stainless steel hose and a first branching device; the B end comprises a second corrugated pipe, an FC connector, a second stainless steel hose and a second branch device; the outer layer of the optical cable is provided with an outer sheath. The optical cable is mainly paved in indoor scenes, is nontoxic, tasteless and environment-friendly, has higher strength, rigidity and good toughness, is light in weight, small in outer diameter and small in bending radius, and aramid yarns are arranged in the optical cable, so that water seepage can be effectively avoided, the safety is improved, and the maintenance cost is reduced; during packaging, the binding belt is used for binding and fixing firmly, so that pulling during construction is facilitated, and safety in the transportation process is ensured.

Description

Two core fiber optic cable subassemblies of toughness

Technical Field

The utility model relates to the field of optical fiber communication equipment, in particular to a flexible two-core optical fiber cable assembly.

Background

With the continuous and deep development of optical fiber communication, the bandwidth requirement of people on an access network is increased day by day, the use of remote optical cable assemblies is more and more extensive, the structural requirements of different base station communication equipment on the remote optical cable assemblies are more and more strict, and the optical access technology has wide coverage and long transmission distance. The wireless access equipment has the characteristics of high bandwidth and high safety, so that the adoption of an optical fiber remote structure by the wireless access equipment has become an inevitable trend, but in the existing optical fiber remote structure, the problems of large quantity of field operation optical cables, poor lateral pressure resistance, poor toughness, large and unattractive structure and difficult maintenance exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tough two-core optical fiber cable assembly to solve the problems of poor performance, unattractive structure and difficult maintenance in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a tough two-core optical fiber cable assembly comprises an A end, a B end and an optical cable 15, wherein the A end comprises a first corrugated pipe 11, a DLC/UPC connector 12, a first stainless steel hose 13 and a first branching device 17; the B-end includes a second bellows 21, an FC connector 22, a second stainless steel hose 23, and a second branch 26; the optical cable 15 skin is equipped with the oversheath, optical cable 15 mainly lays in indoor scene, the inside aramid yarn that is equipped with of optical cable 15 can avoid the infiltration.

The end of the optical cable 15 close to the A end penetrates into the first branching device 17, and the end of the optical cable 15 close to the B end penetrates into the second branching device 26; the optical cable 15 is provided with two rolled self-covering labels 14 and two bar code labels 24, and the bar code label 24 is positioned in the middle of the rolled self-covering label 14.

The DLC/UPC connector 12 is positioned inside the first corrugated pipe 11, the DLC/UPC connector 12 is connected with the first branch 17 through the first stainless steel hose 13, two first stainless steel hoses 13 are arranged, and one end, close to the end B, of the first branch 17 is provided with a first binding belt 16; the DLC/UPC connector 12 and the first stainless steel hose 13 are connected with interfaces of a duplex card A18 and a duplex card B19 respectively, and the duplex card A18 and the duplex card B19 are on the same duplex card.

The FC connector 22 is located inside the second corrugated pipe 21, the FC connectors 22 are two, the FC connectors 22 and the second branching device 26 are connected through the second stainless steel hose 23, the second stainless steel hose 23 is two, and one end, close to the A end, of the second branching device 26 is provided with a second cable tie 25.

Compared with the prior art, the utility model has the following beneficial effects:

the optical cable is mainly paved in indoor scenes, is nontoxic, tasteless and environment-friendly, has higher strength, rigidity and good toughness, is light in weight, small in outer diameter and small in bending radius, and due to the fact that the aramid yarns are arranged inside the optical cable, water seepage can be effectively avoided, safety is improved, and maintenance cost is reduced; during packaging, the binding belt is used for binding and fixing firmly, so that pulling during construction is facilitated, and the safety in the transportation process is ensured.

Drawings

FIG. 1 is a schematic diagram of the assembly of the present invention;

FIG. 2 is a schematic view of the A-terminal structure of the present invention;

FIG. 3 is a schematic view of the B-terminal structure of the present invention;

fig. 4 is a schematic view of a fiber optic cable of the present invention.

In the figure: 11. a first bellows; 12. DLC/UPC connectors; 13. a first stainless steel hose; 14. a roll-to-roll self-covering label; 15. an optical cable; 16. a first cable tie; 17. a first splitter; 18. a position A of the duplex card; 19. b position of the duplex card; 21. a second bellows; 22. an FC connector; 23. a second stainless steel hose; 24. a bar code label; 25. a second cable tie; 26. and a second splitter.

Detailed Description

The present invention will be described in further detail with reference to the following examples in order to clarify technical problems, technical solutions, implementation processes and performance displays. It should be understood that the specific embodiments described herein are for illustrative purposes only. The present invention is not limited to the above embodiments. Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

As shown in fig. 1-4, a flexible two-core optical fiber cable assembly includes an a-side, a B-side, and a cable 15, the a-side including a first bellows 11, a DLC/UPC connector 12, a first stainless steel hose 13, and a first splitter 17; the B-end includes a second bellows 21, an FC connector 22, a second stainless steel hose 23, and a second branch 26; the outer layer of the optical cable 15 is provided with an outer sheath, and the outer sheath is made of black low-smoke halogen-free flame-retardant polyolefin; optical cable 15 mainly lays in indoor scene, optical cable 15 is inside to be equipped with aramid yarn, can avoid the infiltration.

The end of the optical cable 15 close to the A end penetrates into the first branching device 17, and the end of the optical cable 15 close to the B end penetrates into the second branching device 26; the optical cable 15 is provided with two rolled self-covering labels 14 and two bar code labels 24, and the bar code label 24 is positioned in the middle of the rolled self-covering label 14; the optical cable diameter is 7 mm's two outdoor single mode optical cable of core, and the material is black low smoke and zero halogen flame retardant polyolefin, optical fiber type G657.A2, and external diameter tolerance +/-0.3 mm.

The DLC/UPC connector 12 is positioned in the first corrugated pipe 11, the specification of the DLC/UPC connector 12 is DLC/UPC2.0, the DLC/UPC connector 12 is connected with the first branch 17 through the first stainless steel hose 13, and the first stainless steel hose 13 is provided with two pipes, the length of the pipe is 41mm, and the diameter of the pipe is 2.1 mm; a first ribbon 16 is arranged at one end of the first branch 17 close to the end B; the DLC/UPC connector 12 and the first stainless steel hose 13 are connected with interfaces of a duplex card A18 and a duplex card B19 respectively, and the duplex card A18 and the duplex card B19 are on the same duplex card.

The FC connectors 22 are located inside the second corrugated pipe 21, there are two FC connectors 22, the FC connectors 22 and the second branch 26 are connected by the second stainless steel hose 23, and the specification of the FC connector 22 is DLC/UPC 3.0; the length of the second stainless steel hose 23 is 182mm, and the diameter of the second stainless steel hose is 2.8 mm; and a second bandage 25 is arranged at one end of the second branch 26 close to the A end.

The manufacturing process comprises the following steps:

the first step is as follows: (ii) a Cutting 70m of the optical cable 15 and coiling the optical cable, reserving 1.5m (+ -10 cm) of the two ends of the optical cable 15 without binding, winding the outer end and the reserved optical cable by using an environment-friendly PE self-adhesive film, checking the appearance of the reserved optical cable before winding the film, confirming the length of the optical cable 15 and checking whether printed characters are clear and complete.

The second step is as follows: and stripping the outer sheath by using an optical cable stripper, stripping the sheath skin of 95mm at the end A, stripping the sheath skin of 233mm at the end B, and exposing two sub-cables and aramid fibers. Shearing off the reinforcing piece to ensure that the length of aramid fiber inside the reinforcing piece is preferably 3-5 mm; the A end penetrates the first branch 17 (length 40mm, upper width 9.3mm, lower width 8mm) and the B end penetrates the second branch 26 (length 24mm, width 10 mm).

The third step: penetrating parts, namely, using a fiber stripping pliers to open a sheath for stripping a 2.0mm sub-cable, reserving the sheath for 3mm, twisting aramid fiber into one strand, respectively penetrating two sub-cables at the A end into the first stainless steel hose, and assembling the DLC/UPC2.0 connector 12; two sub-cables at the B end penetrate into a second stainless steel hose 23 respectively and are assembled into an FC connector; and producing the remote optical cable component according to the steps of core insert glue injection, core insert curing, pressure welding, assembling, grinding, end inspection, glue dispensing, testing and packaging.

The fourth step: injecting glue, namely, paying attention to control the glue amount of 353ND glue, sequentially placing the bare ferrules in a ferrule tray, and injecting glue regularly and quantitatively by using an automatic glue injection machine; after glue injection, the surface of all the ceramic cores is required to be checked to have glue, glue drops at the tail handle are required to be full, and other outer surfaces are required to have no glue; and then the tail part of the optical fiber is inserted into a transparent sleeve, if the glue is insufficient, the glue is needed to be supplemented in the transparent sleeve, the thickness of the glue is about 1mm, and the other outer surfaces of the optical fiber are free of the glue, so that the optical fiber can be completely and firmly adhered after being cured.

The fifth step: curing, namely checking fiber stripping pliers firstly and confirming whether a knife edge is damaged or not; when an elastic force test is carried out, the upper part of the tight package of 0.9mm is pinched by a hand, and the optical fiber is flicked by 60 degrees from top to bottom and from left to right; during curing, the part square shell is tightly attached to the curing oven clamp, and the tail handle part is arranged outside the curing oven, so that the optical cable is prevented from being scalded; the actual temperature of the curing furnace is qualified within the range of 100 +/-10 ℃; the curing time is 15 minutes, the curing effect is judged according to the color of the glue, and the color is preferably brown.

A sixth step: dispensing, need confirm the proportion of point gum machine parameter and epoxy AB glue earlier, will connect fixed on the frame of dispensing and pour into 15min epoxy AB glue into in the spliter, this kind of glue curing time is shorter than other glues, and the curing effect is better, can bear 180N pulling forces at least after the solidification is complete, adopts the solidification of heating mode to accelerate the glue simultaneously, has greatly improved production efficiency, will guarantee after the point is full that the surface does not have any bubble, ensures the leakproofness.

A seventh step of: the packing adopts the bellows that the elasticity is good, penetrates the A end connector in the first bellows 11 of diameter phi 21.2mm, penetrates the B end connector in the second bellows 21 of diameter phi 25mm to it is fixed firm to use the ribbon ligature, and the ribbon can bear 100N's pulling force, so that draw when the construction, also ensure the security in the transportation.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A tough two-core optical fiber cable assembly, comprising an A-end, a B-end and an optical cable (15), wherein the A-end comprises a first corrugated pipe (11), a DLC/UPC connector (12), a first stainless steel hose (13) and a first splitter (17); the B end comprises a second corrugated pipe (21), an FC connector (22), a second stainless steel hose (23) and a second branching device (26); optical cable (15) skin is equipped with the oversheath, indoor scene is mainly laid in optical cable (15), optical cable (15) inside is equipped with aramid yarn, can avoid the infiltration.

2. The flexible two-core fiber optic cable assembly of claim 1, wherein the end of the optical cable (15) near the a-end is threaded into the first splitter (17) and the end of the optical cable (15) near the B-end is threaded into the second splitter (26); the optical cable (15) is provided with two rolled self-covering labels (14) and two bar code labels (24), and the bar code labels (24) are positioned in the middle of the rolled self-covering labels (14).

3. The flexible two-core fiber optic cable assembly of claim 1, wherein the DLC/UPC connector (12) is located inside the first corrugated tube (11), the DLC/UPC connector (12) is connected to the first splitter (17) by the first stainless steel hose (13), the first stainless steel hose (13) is provided with two, and one end of the first splitter (17) near the B-end is provided with a first cable tie (16); the DLC/UPC connector (12) and the first stainless steel hose (13) are connected with interfaces of a duplex card A (18) and a duplex card B (19) respectively, and the duplex card A (18) and the duplex card B (19) are on the same duplex card.

4. A flexible two-core optical fibre cable assembly according to claim 1, wherein said FC connectors (22) are located inside said second corrugated tube (21), said FC connectors (22) are two, said FC connectors (22) are connected to said second branches (26) by said second stainless steel hose (23), said second stainless steel hose (23) is two, and said second branches (26) are provided with a second tie (25) at an end thereof near the a end.