CN114690358B - AOC optical cable fixing structure and manufacturing method thereof - Google Patents
AOC optical cable fixing structure and manufacturing method thereof Download PDFInfo
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- CN114690358B CN114690358B CN202210326130.9A CN202210326130A CN114690358B CN 114690358 B CN114690358 B CN 114690358B CN 202210326130 A CN202210326130 A CN 202210326130A CN 114690358 B CN114690358 B CN 114690358B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 119
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 107
- 239000013307 optical fiber Substances 0.000 claims abstract description 43
- 238000010008 shearing Methods 0.000 claims abstract description 31
- 230000001681 protective effect Effects 0.000 claims description 30
- 239000003292 glue Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 239000004760 aramid Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000011241 protective layer Substances 0.000 abstract description 15
- 239000010410 layer Substances 0.000 description 37
- 238000005520 cutting process Methods 0.000 description 8
- 239000000835 fiber Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention relates to the technical field of active optical cables, in particular to an AOC optical cable fixing structure and a manufacturing method thereof. According to the invention, under the condition that the structure of the optical cable protective layer is not required to be additionally changed, optical cables with different types and sizes can be fixed on the stop rings with the same type; the internal optical fiber can be uniformly stressed after being fixed, so that the influence of stress in different directions on the internal optical fiber is reduced; can avoid the damage to the outer skin of the aramid fiber and the optical cable when shearing.
Description
Technical Field
The invention relates to the technical field of active optical cables, in particular to an AOC optical cable fixing structure and a manufacturing method thereof.
Background
AOC (Active Optical Cables, active cable) optical modules typically require that the ferrule-bearing fiber optic cable be secured to a stop collar and then connected to other components via an adapted interface, and in this process the stop collar is typically sized to have a fixed type size, and the cable is of a different diameter type, and the protective layer is of a different structural design and is typically much smaller than the diameter of the stop collar. When the existing optical cable is fixed, the diameter of the stop ring is specially matched with the protective layer structure at the fixed position, so that the optical cable is convenient to fix, but in this way, additional designs are needed for various optical cables of different types, materials are added to match the size of the stop ring, and the cost is greatly increased and is quite troublesome.
In view of this, how to overcome the defects of the prior art, how to fix optical cables with different types and sizes on the stop ring with the same type without additionally changing the structure size of the optical cable protection layer is a problem to be solved in the technical field.
Disclosure of Invention
One of the purposes of the invention is to overcome the defects that in the prior art, optical cables of different types need to be additionally designed, materials are added to match the sizes of the stop rings, the cost is greatly increased and the cost is quite troublesome, and to design an AOC optical cable fixing structure and a fixing method thereof, and the optical cables of different types and sizes are fixed on the stop rings of the same type under the condition that the structure size of an optical cable protection layer is not additionally changed.
The invention is realized in the following way:
in a first aspect, the invention provides an AOC cable fixing structure, comprising a stop ring and an optical fiber assembly fixed with the stop ring, wherein the optical fiber assembly comprises a ferrule, an optical cable and a multilayer protection structure, one end of the optical cable comprises a bare optical fiber, the ferrule is arranged at one end of the bare optical fiber and extends out of an inner hole of the stop ring, and the multilayer protection structure is arranged on an inner layer and/or an outer layer of the optical cable and is fixed on the stop ring layer by layer after cutting.
Further, the multilayer protective structure is including setting up aramid fiber, optical cable crust and the mesh grid of optical cable skin, wherein:
the first part of the aramid fiber is wrapped on the surface of the optical cable, and the second part of the aramid fiber is fixed on the periphery of the stop ring;
the first part of the optical cable sheath is wrapped on the periphery of the aramid fiber on the optical cable, and the second part of the optical cable sheath is fixed on the periphery of the aramid fiber on the stop ring;
the first part of the woven mesh is wrapped on the periphery of the optical cable sheath on the optical cable, and the second part of the woven mesh is fixed on the periphery of the optical cable sheath on the stop ring.
Further, a first shear cut is formed in the aramid fiber, and the first shear cut shears the aramid fiber along the axial direction to form a second part of the aramid fiber; the optical cable sheath is provided with a second shear notch which shears the optical cable sheath along the axial direction to form a second part of the optical cable sheath; the mesh is provided with a third cutout that cuts the mesh along an axial direction to form a second portion of the mesh.
Further, every two of the first shear cuts, the second shear cuts and the third shear cuts are separated by 120 degrees.
Further, the auxiliary shearing device comprises a first auxiliary pipe and a second auxiliary pipe, the tail diameter of the first auxiliary pipe is gradually increased, the maximum diameter of the first auxiliary pipe is larger than the inner diameter of the second auxiliary pipe, and the minimum diameter of the first auxiliary pipe is smaller than the inner diameter of the second auxiliary pipe.
Further, the aramid fiber and the stop ring, the optical cable sheath and the aramid fiber, and the woven mesh and the optical cable sheath are all fixed by filling A/B glue.
In a second aspect, the present invention provides a method for manufacturing an AOC cable fixing structure, including:
shearing the multi-layer protective structure of the optical fiber assembly to prepare the optical fiber assembly suitable for being fixed on the stop ring;
the bare optical fiber and the core insert on the optical fiber assembly extend out of the inner hole of the stop ring;
the sheared multilayer protective structure is sleeved on the stop ring and fixed layer by layer.
Further, the shearing the multilayer protective structure of the optical fiber assembly specifically includes:
sleeving the multilayer protective structure on the first auxiliary pipe;
pressing and fixing the aramid fiber and the optical cable sheath by using a second auxiliary tube, and rotating the first auxiliary tube and the second auxiliary tube to drive the aramid fiber and the optical cable sheath to rotate so as to increase the gap between the woven mesh and the optical cable sheath and shear the woven mesh in the direction parallel to the axis until a certain length is reached;
pressing and fixing the aramid fiber by using a second auxiliary tube, and rotating the first auxiliary tube and the second auxiliary tube to drive the aramid fiber to rotate so as to increase the gap between the aramid fiber and the outer skin of the optical cable, and shearing the outer skin of the optical cable to a certain length along the direction parallel to the axis;
and shearing the aramid fiber along the direction parallel to the axis until a certain length is reached.
Further, the multilayer protective structure after shearing is sleeved on the stop ring and fixed layer by layer specifically comprises:
sleeving the sheared aramid fiber on a stop ring, and fixing the aramid fiber through A/B glue;
sleeving the sheared outer leather of the optical cable on aramid fibers, and fixing the outer leather of the optical cable through A/B glue;
and sleeving the sheared woven mesh on the outer skin of the optical cable, and fixing the woven mesh through the A/B glue.
Further, the shearing positions of the woven mesh, the outer skin of the optical cable and the aramid fiber are separated by 120 degrees.
Compared with the prior art, the invention has the beneficial effects that: through shearing the multilayer protective structure of optical cable to the size of adaptation snap ring, can be with the optical cable of different model sizes fixed on the snap ring of same model under the condition that need not additionally carry out the change to optical cable protective layer structure size. In addition, the shearing positions of the protective layer structures are fixed at intervals, and the intervals of the three protective layers are 120 degrees apart from each other, so that the stress of the internal optical fiber is uniform after the optical fiber is fixed, and the influence of stresses in different directions on the internal optical fiber is reduced. When shearing, can also use first auxiliary pipe and second auxiliary pipe to assist, after pushing down aramid fiber, optical cable crust with the second auxiliary pipe, rotatory first auxiliary pipe and second auxiliary pipe drive aramid fiber and optical cable crust and rotate to increase the clearance between mesh grid and the optical cable crust, thereby shearing the mesh grid that can be better, avoid the clearance too little can carelessly cut the optical cable crust of corresponding department, the same reason pushes down the aramid fiber also can be better the shearing optical cable crust and prevent the aramid fiber damage of corresponding department.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an AOC optical cable fixing structure provided in embodiment 1 of the present invention;
FIG. 2 is a schematic view of a shear point of a multilayer protective structure according to embodiment 1 of the present invention;
FIG. 3 is a schematic view of a multi-layered protective structure according to embodiment 1 of the present invention after being cut;
FIG. 4 is a schematic structural view of an auxiliary shearing unit according to embodiment 1 of the present invention;
FIG. 5 is a flow chart of a method for manufacturing an AOC optical cable fixing structure according to embodiment 2 of the present invention;
FIG. 6 is an expanded flowchart of step 100 provided in embodiment 2 of the present invention;
fig. 7 is an expanded flowchart of step 300 provided in embodiment 2 of the present invention.
Detailed Description
In the description of the present invention, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "left", "right", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, only for convenience in describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1, embodiment 1 of the present invention provides an AOC optical cable fixing structure, which includes a stop ring 1 and an optical fiber assembly 2 fixed to the stop ring 1, the optical fiber assembly 2 includes a ferrule 201, an optical cable 202, and a multi-layer protection structure, one end of the optical cable 202 includes an exposed optical fiber 203, the ferrule 201 is disposed at one end of the exposed optical fiber 203 and protrudes from an inner hole of the stop ring 1, and the multi-layer protection structure is disposed on an inner layer and/or an outer layer of the optical cable 202 and is fixed to the stop ring 1 layer by layer after being sheared.
In the preferred embodiment, the multilayer protective structure comprises aramid fiber 204 disposed on the outer layer of the fiber optic cable 202, a fiber optic cable sheath 205, and a woven mesh 206, wherein: the first part of the aramid fiber 204 is wrapped on the surface of the optical cable 202 to form a protection effect on the optical cable 202, and the second part of the aramid fiber 204 is fixed on the periphery of the stop ring 1 to be fixed; a first part of the cable sheath 205 is wrapped around the outer periphery of the aramid fiber 204 on the optical cable 202 to form a reinforced protection effect on the optical cable 202, and a second part of the cable sheath 205 is fixed on the outer periphery of the aramid fiber 204 on the stop ring 1 for fixation; the first part of the mesh braid 206 is wrapped around the outer periphery of the cable sheath 205 on the cable 202 to strengthen the protection again, and the second part of the mesh braid 206 is fixed around the outer periphery of the cable sheath 205 on the stop ring 1 to fix. That is, the present embodiment provides three-layer protection structures of the aramid fiber 204, the cable sheath 205, and the woven mesh 206 from inside to outside, and is fixed layer by layer, so as to effectively fix the optical cable 202 and the stop ring 1.
In the preferred embodiment, in order to avoid setting the protective layer structure at the fixing position of the stop ring 1 to a form matching the diameter size of the stop ring as in the prior art, the multilayer protective structure of the optical cable 202 is sheared to adapt to the size of the stop ring 1, and the optical cables 202 with different types and sizes can be fixed on the stop ring 1 with the same model without additionally changing the size of the protective layer structure, so that the material is saved, the cost is reduced, and the method is convenient and simple compared with the method of specially expanding the diameter at one end.
Specifically, as shown in fig. 2, in the present preferred embodiment, a first cutout 2041 is provided on the aramid fiber 204, a second cutout 2051 is provided on the cable sheath 205, and a third cutout 2061 is provided on the woven mesh 206. The first shearing hole 2041 shears the aramid fiber 204 along a direction parallel to the axis to form a second part of the aramid fiber 204, and the second part of the aramid fiber 204 can be wrapped on the stop ring 1 because of being sheared, so that only a notch with a certain size formed at the shearing position is left; the second cutout 2051 cuts the cable sheath 205 in a direction parallel to the axis to form a second portion of the cable sheath 205, the second portion of the cable sheath 205 being cut so as to wrap around the aramid fiber 204, leaving only a size of gap formed at the cut-out; the third cutout 2061 cuts the mesh braid 206 in a direction parallel to the axis to form a second portion of the mesh braid 206, which second portion of the mesh braid 206, as it is cut, may be wrapped around the cable sheath 205, leaving only a size of gap formed at the cut-out.
In the preferred embodiment, the first cutout 2041, the second cutout 2051, and the third cutout 2061 are spaced 120 degrees apart. The purpose of this design is to make the stress on the fixed internal optical fiber 203 uniform, and to reduce the influence of stresses in different directions. Referring to fig. 3, in the preferred embodiment, after the multilayer protective structure is cut, the gaps of the aramid fiber 204, i.e. the center of the first gap 2042, the center of the optical cable sheath 205, i.e. the center of the second gap 2052, and the center of the woven mesh 206, i.e. the center of the third gap 2062, are spaced by 120 degrees, so that the internal stress is as uniform as possible. In fig. 2 and 3 of the present embodiment, the first cutout 2041, the second cutout 2051, and the third cutout 2061 are sequentially spaced apart by 120 degrees in the clockwise direction, and in other embodiments, the three may be sequentially spaced apart by 120 degrees in the counterclockwise direction, which is not limited thereto.
It should be noted that, the multi-layer protection structure of this embodiment is illustrated by taking three layers (the aramid fiber 204, the optical cable sheath 205, and the woven mesh 206) as an example, in other embodiments, the multi-layer protection structure may also have two or more layers, and accordingly, when the multi-layer protection structure is cut, it is required to ensure that the intervals between the cutting openings of each layer are the same, for example, two layers, that the cutting is performed at intervals of 180 degrees, that the cutting is performed at intervals of 90 degrees if the cutting is performed at intervals of four layers, and so on.
As shown in fig. 4, in the preferred embodiment, an auxiliary shearing unit is further included for assisting the shearing of the aramid fiber 204, the cable sheath 205, and the woven mesh 206, the auxiliary shearing unit includes a first auxiliary pipe 3 and a second auxiliary pipe 4, the tail (right side in the drawing) of the first auxiliary pipe 3 has a diameter increasing, the maximum diameter of the first auxiliary pipe 3 is larger than the inner diameter of the second auxiliary pipe 4, and the minimum diameter of the first auxiliary pipe 3 is smaller than the inner diameter of the second auxiliary pipe 4. In this way, when in use, the uncut aramid fiber 204, the optical cable sheath 205 and the woven mesh 206 are sleeved on the first auxiliary tube 3 from the tail, and the ferrule 201 and the exposed optical fiber 203 partially penetrate out of the inner hole of the first auxiliary tube 3. When the woven mesh 206 needs to be sheared, the woven mesh 206 is turned over a small part so as to facilitate the second auxiliary tube 4 to be inserted between the woven mesh 206 and the optical cable sheath 205, so that the second auxiliary tube 4 only presses the aramid fiber 204 and the optical cable sheath 205, and then the second auxiliary tube 4 is pushed forward to be abutted against the tail part of the first auxiliary tube 3 so as to tightly press the aramid fiber 204 and the optical cable sheath 205, at the moment, the first auxiliary tube 3 and the second auxiliary tube 4 can be fixed at the head part (at the left side in the drawing) through common fixing tools such as screws, and after the fixing, the second auxiliary tube 4 and the first auxiliary tube 3 are rotated so as to drive the aramid fiber 204 and the optical cable sheath 205 to rotate into a twist shape, and therefore, the gap between the optical cable sheath 205 and the woven mesh 206 can be enlarged, and the woven mesh 206 can be sheared better so that the optical cable sheath 205 is prevented from being easily damaged by mistake due to the too close distance between the woven mesh 206 and the optical cable sheath 205.
Similarly, when the cable sheath 205 needs to be sheared, a small part of the cable sheath 205 is turned over to facilitate inserting the second auxiliary tube 4 between the cable sheath 205 and the aramid fiber 204, so that the second auxiliary tube 4 only presses the aramid fiber 204, and then the second auxiliary tube 4 is pushed forward to be abutted against the tail of the first auxiliary tube 3, so that the aramid fiber 204 is tightly pressed, at the moment, the first auxiliary tube 3 and the second auxiliary tube 4 can be fixed on the head through common fixing tools such as screws, and after the fixing, the second auxiliary tube 4 and the first auxiliary tube 3 are rotated to drive the aramid fiber 204 to rotate in a twist shape, and therefore, a gap between the cable sheath 205 and the aramid fiber 204 is enlarged, and the cable sheath 205 can be sheared better, so that the aramid fiber 204 is prevented from being easily damaged by mistake when the distance between the aramid fiber 204 and the cable sheath 205 is too close. After both the mesh 206 and the cable sheath 205 are sheared, the aramid 204 can be sheared easily. In the preferred embodiment, the outer surface of the second auxiliary tube 4 is provided with friction-increasing textures to allow the user to better hold it for rotation.
In the preferred embodiment, when the aramid fiber 204, the cable sheath 205 and the woven mesh 206 are fixed on the stop ring 1, the aramid fiber 204 and the stop ring 1, the cable sheath 205 and the aramid fiber 204, and the woven mesh 206 and the cable sheath 205 are all fixed by filling the a/B glue 207.
Referring to fig. 1, in this embodiment, a collar 208 and a tail sleeve 209 are further provided, specifically, after the aramid fiber 204, the optical cable sheath 205, and the woven mesh 206 are all fixed on the stop ring 1, the collar 208 is sleeved on the stop ring 1 to press the woven mesh 206, and an a/B glue 207 is filled between the collar 208 and the woven mesh 206 to fix, so that the whole optical fiber assembly 2 is more stably fixed on the stop ring 1; the boot 209 then completely encases the entire fiber optic assembly 2 from the cut-out port of the multilayer protective structure to form the outermost protective layer.
In the above structure of the embodiment, by cutting the multi-layer protection structure of the optical fiber assembly 2 to adapt to the size of the stop ring 1, the optical cables 202 with different types and sizes can be fixed on the stop ring 1 with the same model without changing the size of the multi-layer protection structure additionally. In addition, the shearing positions of the protective layer structures are fixed at intervals, and the intervals of the three protective layers are 120 degrees apart from each other, so that the stress of the internal optical fiber 203 is uniform after the fixing, and the influence of the stress in different directions on the internal optical fiber is reduced. When shearing, can also use first auxiliary pipe 3 and second auxiliary pipe 4 to assist, after pushing down aramid fiber 204, optical cable sheath 205 with second auxiliary pipe 4, rotatory first auxiliary pipe 3 and second auxiliary pipe 4 drive aramid fiber 204 and optical cable sheath 205 and rotate, with the clearance between increase mesh 206 and optical cable sheath 205, thereby can better shear mesh 206, avoid the clearance too little can carelessly cut to optical cable sheath 205 of corresponding department, and in the same way, push down aramid fiber 204 also can better shear optical cable sheath 205 and prevent the aramid fiber 204 damage of corresponding department.
Example 2
Based on the AOC cable fixing structure of embodiment 1, this preferred embodiment 2 also provides a method for manufacturing the AOC cable fixing structure, as shown in fig. 5, which includes the following steps.
Step 100: the multi-layered protective structure of the optical fiber assembly 2 is sheared to prepare the optical fiber assembly 2 suitable for fixing to the stopper ring 1. In order to avoid adding materials to the multilayer protective structure to match the size of the stop ring, the multilayer protective structure is directly sheared to achieve the purpose of matching the diameter of the stop ring 1.
Step 200: bare optical fibers 203 of the optical fiber assembly 2 and the ferrule 201 are protruded from the inner hole of the stop ring 1. This step is a conventional step and the extended ferrule 201 is used for mating connection with other components.
Step 300: the sheared multilayer protective structure is sleeved on the stop ring 1 and fixed layer by layer. The step is a final step, and the AOC optical cable fixing structure is manufactured after the completion of the final step.
Specifically, as shown in fig. 6, in step 100 in this embodiment, the cutting the multilayer protective structure of the optical fiber assembly 2 may specifically include the following procedure.
Step 101: the multilayer protective structure is sleeved on the first auxiliary pipe 3. This step is to put the multilayer protective structure, i.e. aramid fiber 204, cable sheath 205, and woven mesh 206, over the first auxiliary tube 3 to prepare the cut.
Step 102: the aramid fiber 204 and the optical cable sheath 205 are pressed and fixed by the second auxiliary tube 4, the aramid fiber 204 and the optical cable sheath 205 are driven to rotate by rotating the first auxiliary tube 3 and the second auxiliary tube 4, so that the gap between the woven mesh 206 and the optical cable sheath 205 is increased, and the woven mesh 206 is sheared to a certain length along the direction parallel to the axis. In this step, when the mesh 206 needs to be sheared, the mesh 206 is turned over a small portion to facilitate inserting the second auxiliary tube 4 between the mesh 206 and the cable sheath 205, so that the second auxiliary tube 4 only presses the aramid fiber 204 and the cable sheath 205, and then the second auxiliary tube 4 is pushed forward to abut against the tail of the first auxiliary tube 3, so as to compress the aramid fiber 204 and the cable sheath 205, at this time, the first auxiliary tube 3 and the second auxiliary tube 4 can be fixed by a common fixing tool such as a screw on the head (left side in the drawing), and after the fixing, the second auxiliary tube 4 and the first auxiliary tube 3 are rotated to drive the aramid fiber 204 and the cable sheath 205 to rotate in a twist shape, so that a gap between the cable sheath 205 and the mesh 206 is enlarged, thereby shearing the mesh 206 better, and avoiding that the mesh 206 and the cable sheath 205 are easily damaged by mistake when the distance between the mesh 206 and the cable sheath 205 is too close. In the preferred embodiment, the outer surface of the second auxiliary tube 4 is provided with friction-increasing textures to allow the user to better hold it for rotation. The length of the mesh 206 cut is set in advance, and it is sufficient to wrap the mesh around the stopper ring 1.
Step 103: the aramid fiber 204 is pressed and fixed by the second auxiliary tube 4, the aramid fiber 204 is driven to rotate by rotating the first auxiliary tube 3 and the second auxiliary tube 4, so that the gap between the aramid fiber 204 and the optical cable sheath 205 is increased, and the optical cable sheath 205 is sheared to a certain length along the direction parallel to the axis. In this step, when the cable sheath 205 needs to be sheared, a small portion of the cable sheath 205 is turned over to facilitate inserting the second auxiliary tube 4 between the cable sheath 205 and the aramid fiber 204, so that the second auxiliary tube 4 only presses the aramid fiber 204, and then the second auxiliary tube 4 is pushed forward to abut against the tail portion of the first auxiliary tube 3, so as to compress the aramid fiber 204, at this time, the first auxiliary tube 3 and the second auxiliary tube 4 can be fixed by a common fixing tool such as a screw on the head portion, and after the fixing, the second auxiliary tube 4 and the first auxiliary tube 3 are rotated to drive the aramid fiber 204 to rotate in a twist shape, so that a gap between the cable sheath 205 and the aramid fiber 204 becomes larger, and the cable sheath 205 can be sheared better, so as to avoid that the aramid fiber 204 is easily damaged by mistake when the distance between the aramid fiber 204 and the cable sheath 205 is too close. The cut length of the cable sheath 205 is set in advance so that it can be wrapped around the stopper ring 1.
Step 104: the aramid fiber 204 is sheared in a direction parallel to the axis up to a certain length. In this step, the braid 206 and the cable sheath 205 have been sheared, and then the aramid fiber 204 can be sheared conveniently after the second auxiliary tube 4 and the first auxiliary tube 3 are removed. The shearing length of the aramid fiber 204 is preset in advance, and the aramid fiber can be wrapped on the stop ring 1.
Referring to fig. 2 and 3, in the preferred embodiment, the cutting positions of the woven mesh 206, the optical cable sheath 205 and the aramid fiber 204 are spaced by 120 degrees, so that the gaps left by the three protective layers are also spaced identically, and the purpose of reducing the influence on the internal optical fiber 203 is achieved.
As shown in fig. 7, in step 300 of this embodiment, the process of sleeving the sheared multilayer protective structure on the stop ring 1 and fixing the multilayer protective structure layer by layer may specifically include the following processes.
Step 301: the sheared aramid fiber 204 is sleeved on the stop ring 1 and fixed through the A/B glue 207.
Step 302: the sheared cable sheath 205 is sleeved on the aramid fiber 204 and fixed by the A/B glue 207.
Step 303: the cut mesh 206 is sleeved on the cable sheath 205 and fixed by the A/B glue 207.
The three steps are sequentially sleeved on the stop ring 1 through the aramid fiber 204, the optical cable sheath 205 and the woven mesh 206, and the fixed patterns are shown by referring to fig. 1 through the A/B glue 207. The a/B glue 207 is selected for fixing in this embodiment, but is not limited thereto, and any other filler may be selected for fixing or any conventional fixing structure may be used for fixing.
After the above steps are completed, the collar 208 can be sleeved on the stop ring 1, so that the collar 208 presses the woven mesh 206 and the two are fixed by the a/B glue 207, and the whole optical fiber assembly 2 is more stably fixed on the stop ring 1; finally, the boot 209 may also be used to encase the entire fiber optic assembly 2 entirely, beginning at the cut port of the multilayer protective structure, to form the outermost protective layer.
In summary, the multi-layer protection structure of the optical fiber assembly 2 is sheared to adapt to the size of the stop ring 1, so that the optical cables 202 with different types and sizes can be fixed on the same type of stop ring 1 without additionally changing the size of the multi-layer protection structure. In addition, the shearing positions of the protective layer structures are fixed at intervals, and the intervals of the three protective layers are 120 degrees apart from each other, so that the stress of the internal optical fiber 203 is uniform after the fixing, and the influence of the stress in different directions on the internal optical fiber is reduced. When shearing, can also use first auxiliary pipe 3 and second auxiliary pipe 4 to assist, after pushing down aramid fiber 204, optical cable sheath 205 with second auxiliary pipe 4, rotatory first auxiliary pipe 3 and second auxiliary pipe 4 drive aramid fiber 204 and optical cable sheath 205 and rotate, with the clearance between increase mesh 206 and optical cable sheath 205, thereby can better shear mesh 206, avoid the clearance too little can carelessly cut to optical cable sheath 205 of corresponding department, and in the same way, push down aramid fiber 204 also can better shear optical cable sheath 205 and prevent the aramid fiber 204 damage of corresponding department.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. An AOC optical cable fixing structure is characterized by comprising a stop ring (1) and an optical fiber assembly (2) fixed with the stop ring (1), wherein the optical fiber assembly (2) comprises an inserting core (201), an optical cable (202) and a multi-layer protection structure, one end of the optical cable (202) comprises an exposed optical fiber (203), the inserting core (201) is arranged at one end of the exposed optical fiber (203) and extends out of an inner hole of the stop ring (1), and the multi-layer protection structure is arranged on an inner layer and/or an outer layer of the optical cable (202) and is fixed on the stop ring (1) layer by layer after shearing;
the multilayer protective structure comprises aramid fiber (204) arranged on the outer layer of the optical cable (202), an optical cable sheath (205) and a woven mesh (206), wherein a first shear opening (2041) is formed in the aramid fiber (204), a second shear opening (2051) is formed in the optical cable sheath (205), a third shear opening (2061) is formed in the woven mesh (206), and the first shear openings (2041), the second shear openings (2051) and the third shear openings (2061) are spaced by 120 degrees in pairs.
2. The AOC cable fixing structure according to claim 1, wherein a first portion of the aramid fiber (204) is wrapped around the surface of the cable (202), and a second portion of the aramid fiber (204) is fixed to the outer periphery of the stopper ring (1);
a first part of the optical cable sheath (205) is wrapped on the periphery of the aramid fiber (204) on the optical cable (202), and a second part of the optical cable sheath (205) is fixed on the periphery of the aramid fiber (204) on the stop ring (1);
a first part of the woven mesh (206) is wrapped on the periphery of the optical cable sheath (205) on the optical cable (202), and a second part of the woven mesh (206) is fixed on the periphery of the optical cable sheath (205) on the stop ring (1).
3. The AOC cable fixation structure of claim 2, wherein the first cutout (2041) shears the aramid fiber (204) in an axial direction to form a second portion of the aramid fiber (204); -the second cutout (2051) shears the cable sheath (205) in an axial direction to form a second portion of the cable sheath (205); the third cutout (2061) cuts the woven mesh (206) in an axial direction to form a second portion of the woven mesh (206).
4. An AOC cable fixing structure according to claim 3, further comprising an auxiliary shearing member comprising a first auxiliary tube (3) and a second auxiliary tube (4), the tail diameter of the first auxiliary tube (3) being increased, the maximum diameter of the first auxiliary tube (3) being larger than the inner diameter of the second auxiliary tube (4), the minimum diameter of the first auxiliary tube (3) being smaller than the inner diameter of the second auxiliary tube (4).
5. The AOC cable fixing structure according to any one of claims 1 to 4, wherein the aramid fiber (204) and the stopper ring (1), the cable sheath (205) and the aramid fiber (204), and the woven mesh (206) and the cable sheath (205) are all fixed by filling with an a/B glue (207).
6. A method for manufacturing an AOC cable fixing structure, applied to an AOC cable fixing structure according to any one of claims 1 to 5, comprising:
shearing the multilayer protective structure of the optical fiber assembly (2) to prepare the optical fiber assembly (2) suitable for being fixed on the stop ring (1);
the bare optical fiber (203) on the optical fiber assembly (2) and the inserting core (201) extend out of the inner hole of the stop ring (1);
the sheared multilayer protective structure is sleeved on the stop ring (1) and fixed layer by layer.
7. The method for manufacturing an AOC cable fixing structure according to claim 6, wherein the shearing the multilayer protective structure of the optical fiber assembly (2) specifically comprises:
sleeving the multilayer protective structure on the first auxiliary pipe (3);
pressing and fixing the aramid fiber (204) and the optical cable sheath (205) by using a second auxiliary tube (4), and rotating the first auxiliary tube (3) and the second auxiliary tube (4) to drive the aramid fiber (204) and the optical cable sheath (205) to rotate so as to increase the gap between the woven mesh (206) and the optical cable sheath (205), and shearing the woven mesh (206) along the direction parallel to the axis until a certain length is reached;
the aramid fiber (204) is pressed and fixed by the second auxiliary tube (4), the first auxiliary tube (3) and the second auxiliary tube (4) are rotated to drive the aramid fiber (204) to rotate, so that the gap between the aramid fiber (204) and the optical cable sheath (205) is increased, and the optical cable sheath (205) is sheared to a certain length along the direction parallel to the axis;
and shearing the aramid fiber (204) along the direction parallel to the axis until a certain length is reached.
8. The method for manufacturing an AOC optical cable fixing structure according to claim 7, wherein the sleeving the sheared multilayer protective structure on the stop ring (1) and fixing the multilayer protective structure layer by layer specifically includes:
sleeving the sheared aramid fibers (204) on the stop ring (1), and fixing the aramid fibers through the A/B glue (207);
sleeving the sheared optical cable sheath (205) on the aramid fiber (204) and fixing the aramid fiber through the A/B adhesive (207);
the cut woven mesh (206) is sleeved on the optical cable sheath (205) and fixed through A/B glue (207).
9. The method of manufacturing an AOC cable fixing structure according to any one of claims 6 to 8, wherein the cut portions of the mesh grid (206), the cut portions of the cable sheath (205), and the cut portions of the aramid fiber (204) are spaced apart by 120 degrees.
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| CN202210326130.9A CN114690358B (en) | 2022-03-30 | 2022-03-30 | AOC optical cable fixing structure and manufacturing method thereof |
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| CN202210326130.9A CN114690358B (en) | 2022-03-30 | 2022-03-30 | AOC optical cable fixing structure and manufacturing method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008225461A (en) * | 2007-02-09 | 2008-09-25 | Fujikura Ltd | Optical fiber cable with connector and optical connector, and assembling method of optical connector |
| CN203149173U (en) * | 2013-03-14 | 2013-08-21 | 东捷光电科技(苏州)有限公司 | Armored optical cable for machine room and splitter assembly thereof |
| CN210376771U (en) * | 2019-09-29 | 2020-04-21 | 四川飞普科技有限公司 | Novel connection fixing structure of optical cable and connector |
| CN211086691U (en) * | 2019-12-20 | 2020-07-24 | 深圳市嘉万光通信有限公司 | FSC quick connector |
-
2022
- 2022-03-30 CN CN202210326130.9A patent/CN114690358B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008225461A (en) * | 2007-02-09 | 2008-09-25 | Fujikura Ltd | Optical fiber cable with connector and optical connector, and assembling method of optical connector |
| CN203149173U (en) * | 2013-03-14 | 2013-08-21 | 东捷光电科技(苏州)有限公司 | Armored optical cable for machine room and splitter assembly thereof |
| CN210376771U (en) * | 2019-09-29 | 2020-04-21 | 四川飞普科技有限公司 | Novel connection fixing structure of optical cable and connector |
| CN211086691U (en) * | 2019-12-20 | 2020-07-24 | 深圳市嘉万光通信有限公司 | FSC quick connector |
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| Publication number | Publication date |
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| CN114690358A (en) | 2022-07-01 |
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