CN111736273B - Cold-pressing installation method for 5G antenna optical cable of urban rail transit - Google Patents
Cold-pressing installation method for 5G antenna optical cable of urban rail transit Download PDFInfo
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- CN111736273B CN111736273B CN202010696591.6A CN202010696591A CN111736273B CN 111736273 B CN111736273 B CN 111736273B CN 202010696591 A CN202010696591 A CN 202010696591A CN 111736273 B CN111736273 B CN 111736273B
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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
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3898—Tools, e.g. handheld; Tuning wrenches; Jigs used with connectors, e.g. for extracting, removing or inserting in a panel, for engaging or coupling connectors, for assembling or disassembling components within the connector, for applying clips to hold two connectors together or for crimping
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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
- G02B6/24—Coupling light guides
- G02B6/245—Removing protective coverings of light guides before coupling
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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
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
-
- 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
- G02B6/56—Processes for repairing optical cables
- G02B6/566—Devices for opening or removing the mantle
Abstract
The invention discloses a cold-pressing installation method for an urban rail transit 5G antenna optical cable, which is characterized in that an auxiliary device is utilized for installing optical fibers, the auxiliary device comprises a tray, an LC connector and an optical fiber clamp, the inner walls of two sides of the tray are connected with the same arc-shaped plate in a sliding mode, the bottom of the arc-shaped plate is in contact with the inner wall of the bottom of the tray, two springs are symmetrically welded on one side of the arc-shaped plate, one end of each spring is welded with the inner wall of one side of the tray, first U-shaped grooves are formed in two sides of the top of the tray and the top of the arc-shaped plate, and a circular plate is rotatably connected to one side of the tray. The invention has simple construction operation, saves more time than the traditional hot melting, has passive construction, does not need electricity or other precise instruments, has no special requirement on the operation environment, saves cost, does not need a welding machine, reduces the cost, has the antenna wire rate of 95 percent and is convenient to maintain and replace at the later stage.
Description
Technical Field
The invention relates to the technical field of cold-pressing installation of optical cables, in particular to a cold-pressing installation method of an optical cable of a 5G antenna of urban rail transit.
Background
In recent years, the fifth generation mobile communication system 5G has gradually become a hot spot in research in the communication industry and academia. There are two main driving forces for the rapid development of 5G from the current development. On one hand, a fourth generation mobile communication system 4G of long term evolution is completely commercial, and has been pushed to the future in the face of deeper research; on the other hand, in response to the explosive increase in the demand of mobile data users, the existing mobile communication systems may not satisfy the future demand, and the development of a new generation 5G system is urgently needed from the present situation.
The main advantage of 5G networks is that the data transmission rate is much higher than that of the previous 4G networks, up to 10Gbit/s, faster than the current wired internet, 100 times faster than the previous 4G lte cellular networks. Another advantage is lower network delay (faster response time), below 1 millisecond, and 30-70 milliseconds for 4G. Due to faster data transmission, the 5G network will not only serve the handset, but will also become a general home and office network provider, competing with the cable network provider. The civil communication of rail transit in Haoyote city is called, the 5G network is applied to the subway industry in China for the first time, and the civil communication has profound significance for the development of rail transit 5G and indoor 5G (such as office buildings, commercial squares and the like) as a 5G network test point area.
The 1 st line of the subway in the Hehaote city is the first 5G antenna installation application of the domestic subway, and according to the field survey, 5G is different from 4G, and indoor leaky cable coverage needs to be changed into optical cable coverage to satisfy the data magnitude transmission rate demand, and the general hot melt mode of tradition needs to use the heat sealing machine, and the hot melt defect lies in that the instrument is expensive, needs to continue the power consumption, and the maintenance cost is higher, and professional welding personnel welding cost is higher, and the operation place is restricted. Especially, civil antenna terminal point location is many, need be under construction on the furred ceiling after the fitment furred ceiling is accomplished, and battery continuation of the journey is limited, and it is inconvenient to get the electricity and the heat sealing machine is put, is unfavorable for site operation, and the cost is higher, consequently calls for Haoyite 5G antenna to continue and adopts the optic fibre cold joint mode, uses the LC connector of cold pressing terminal, adopts V type wedge to be connected optic fibre and LC connector. I place professional technical personnel into, through the supervision personnel of mobile company to train the study to 5G technique, select the west two ring station of model station, the gas station of no tower in back to carry out equipment and antenna installation construction. I have counted the antenna installation condition, and the on-site rate is relatively poor, leads to the antenna rate of going up to be only 82.68%, improves the antenna qualification rate, and it is the key in the work progress to reduce reworking.
Aiming at the problem of low antenna wire rate, subject group members carefully carry out on-site comparison and analysis and deeply discuss and refine the problem, and find that the three problems of uneven optical fiber root protective sleeves, gaps between optical fibers covered by an optical fiber clamp and bare fibers exceeding a window of an LC (liquid crystal) connector are main reasons influencing the primary qualification rate of 5G indoor antenna installation and debugging.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a cold-pressing installation method for an urban rail transit 5G antenna optical cable.
The purpose of the invention is realized by the following technical scheme:
a cold-pressing installation method for an urban rail transit 5G antenna optical cable is characterized in that an auxiliary device is used for installing optical fibers, and the auxiliary device comprises a tray, an LC connector and an optical fiber clamp;
the tray comprises a tray body, wherein the inner walls of two sides of the tray body are connected with the same arc plate in a sliding mode, the bottom of the arc plate is in contact with the inner wall of the bottom of the tray body, two springs are symmetrically welded on one side of the arc plate, one end of each spring is welded with the inner wall of one side of the tray body, two sides of the top of the tray body and the top of the arc plate are respectively provided with a first U-shaped groove, two positioning plates are symmetrically and fixedly installed on the inner wall of one side of the tray body and are respectively positioned on two sides of the first U-shaped groove, one side of the tray body is rotatably connected with a circular plate, the top of the circular plate is provided with a third U-shaped groove, two vertical plates are symmetrically welded on one side of the circular plate, one vertical plate is provided with a first through hole, the inner wall of the first through hole is rotatably connected with a positive and negative two-way screw rod, one end of the positive and negative two-way screw rod is welded with a handle, and the handle is positioned on one side of the vertical plate, one end of the positive and negative tooth bidirectional screw rod penetrates through the first through hole and is rotationally connected with the other vertical plate, two moving plates are symmetrically rotationally connected on the outer wall of the positive and negative tooth bidirectional screw rod, a sliding plate is fixedly arranged at the top of the moving plate, one side of the sliding plate is rotationally connected with one side of the circular plate, the top of the sliding plate is fixedly provided with arc-shaped cutting knives which are positioned at the two sides of the third U-shaped groove, a second magnet is fixedly arranged at the bottom of one side of the tray, a second through hole is arranged at the bottom of one side of the arc-shaped cutting knife, a push rod is welded on the inner wall of the second through hole, one end of the push rod penetrates through the second through hole and extends to one side of the circular plate, the outer wall of the push rod is fixedly sleeved with a first magnet, the first magnet is positioned between the circular plate and the tray, and the first magnet is in contact with and attracted to the second magnet; one side of the circular plate is fixedly provided with a guide rail which is positioned below the third U-shaped groove, one side of the sliding plate is fixedly provided with a sliding block, and the sliding block is in sliding connection with the guide rail;
the optical fiber clamp comprises an optical fiber clamp and is characterized in that a second U-shaped groove is formed in the top of the optical fiber clamp, an optical fiber is arranged on the inner wall of the bottom of the second U-shaped groove, the bottom of the optical fiber is in contact with the inner wall of the bottom of the second U-shaped groove, both the top and the bottom of the two sides of the optical fiber clamp are respectively provided with a buckle, both the inner walls of the two sides of the optical fiber clamp are rotatably connected with a rotating shaft, one side, close to each other, of the two rotating shafts is welded with the same arc-shaped pressing plate, a torsion spring is sleeved on the outer wall of each rotating shaft, one end, far away from each other, of each torsion spring is fixedly connected with both the inner walls of the optical fiber clamp respectively, one end, close to each other, of each torsion spring is fixedly connected with both sides of the arc-shaped pressing plate respectively, the inner wall of the top of the arc-shaped pressing plate is in contact with the top of the optical fiber, a clamp cover is fixedly mounted at the top of the arc-shaped pressing plate, a round hole is arranged at one side of the clamp, a semi-spherical ball matched with the round hole is arranged at one side of the optical fiber clamp, the semi-sphere extends into the round hole and is in contact with the round hole;
the optical fiber clamp comprises an LC connector, clamping plates matched with buckles, V-shaped positioning plates, clamping grooves matched with the V-shaped positioning plates, and clamping grooves, wherein windows are arranged on four sides of the LC connector, round openings are arranged at the top of the LC connector and are positioned at one side of the windows, the clamping plates matched with the buckles are arranged at the top and the bottom of two sides of the LC connector, the V-shaped positioning plates are arranged in the middle positions of the inner walls of the two sides of the LC connector, and the clamping grooves matched with the V-shaped positioning plates are arranged in the center positions of the two sides of the optical fiber clamp;
utilize auxiliary device cold pressing installation 5G antenna cable's worker method specifically includes the following step:
s1, cutting of the optical fiber sheath: firstly, cutting off redundant optical fiber sheaths by using a butterfly-shaped optical cable stripper to ensure that the cut sections are neat and an optical cable coating layer is exposed;
s2, fixing the optical fiber: opening the clamp cover, putting the optical fiber into the second U-shaped groove, aligning the cut surface of the optical fiber sheath with the inner wall of the optical fiber clamp without clearance, then loosening the clamp cover, enabling the arc-shaped pressing plate to rotate towards the optical fiber by the torsion force of the torsion spring, enabling the arc-shaped pressing plate to be in contact with the optical fiber, clamping the optical fiber between the second U-shaped groove and the arc-shaped pressing plate by the arc-shaped pressing plate under the action of the torsion spring, driving the mounting column and the clamp cover to rotate by the arc-shaped pressing plate, enabling the clamp cover to be in contact with the semi-sphere, pressing the clamp cover downwards at the moment, enabling the clamp cover to be extruded with the semi-sphere, forcing the semi-sphere to enter the round hole and be in contact with the inner wall of the round hole, enabling the clamp cover to drive the arc-shaped pressing plate to approach the optical fiber and further extrude the optical fiber, further firmly fixing the optical fiber in the optical fiber clamp, and ensuring the optical fiber to be stable and not to bend, and the placement is stable and reliable;
s3, stripping the optical cable coating layer, which comprises the following steps:
s31, aligning the optical fiber clamp between the two positioning plates, aligning the optical fiber to the first U-shaped groove, placing the optical fiber clamp between the two positioning plates, pushing the optical fiber clamp downwards when the optical fiber clamp contacts the arc-shaped plate, enabling the optical fiber clamp to slide on the arc-shaped plate and extrude the arc-shaped plate, enabling the arc-shaped plate to move in a direction away from the positioning plates, compressing the spring, driving the round rod to slide in the waist hole by the arc-shaped plate, loosening the optical fiber clamp when the bottom of the optical fiber clamp contacts the inner wall of the bottom of the tray, enabling the optical fiber clamp to be tightly attached to the inner wall of the tray without clearance under the elastic force of the spring, and further firmly fixing the optical fiber clamp in the tray;
s32, after the optical fiber clamp is fixed in the tray, the handle is rotated to drive the bidirectional screw rod with positive and negative teeth to rotate, because the screw thread on the handle is bidirectional, the bidirectional screw rod with positive and negative teeth can drive the two movable plates to move towards the direction of approaching each other, the two movable plates can respectively drive the two sliding plates to move towards the direction of approaching each other, the sliding plates can drive the sliding blocks to slide on the guide rails, and the two sliding plates can respectively drive the two arc-shaped cutters to move towards the direction of approaching each other, so that the two arc-shaped cutters can contact with the optical cable coating layer of the optical fiber, the handle is continuously rotated, when the two arc-shaped cutters contact, the handle is stopped to be rotated, in the process, the two arc-shaped cutters can cut the optical cable coating layer of the optical fiber, the push rod is pushed, and the push rod can drive the circular plate to move around the center of the optical fiber, the circular plate can drive the arc-shaped sliding block to slide on the annular guide rail, the push rod can drive the first magnet to be separated from the second magnet, in addition, the circular plate can drive the two arc-shaped cutting knives to perform circumferential movement, due to the fact that the position of the optical fiber is fixed, the two arc-shaped cutting knives can cut along a circumferential route on the optical fiber, after the circular plate rotates for 90 degrees, an optical cable coating layer on the optical fiber can be cut open, the push rod stops rotating and pushes the push rod to the original position in a reverse mode, the circular plate can be reset, at the moment, the first magnet can be in contact with the second magnet again and is attracted together, and the circular plate can be braked;
s33, the optical fiber clamp is tightly attached to the inner wall of the bottom of the tray and pulled in the direction far away from the positioning plate, the optical fiber clamp can drive the optical fiber to move, and because the optical cable coating layer of the optical fiber is cut and the arc-shaped cutting knife is still clamped in the optical cable coating layer of the optical fiber, the arc-shaped cutting knife can abut against the cut optical cable coating layer when the optical fiber moves, and the cut optical cable coating layer can be separated from the optical fiber and the glass fiber is exposed in the continuous moving process of the optical fiber;
s4, inserting the fiber clamp into the LC connector: the arc-shaped plate is pushed towards the direction far away from the positioning plate to separate the arc-shaped plate from the optical fiber clamp, the optical fiber clamp and the optical fiber with the optical cable coating layer removed can be taken out of the support, the clamp cover is pulled upwards to separate the semi-sphere from the round hole, at the moment, the arc-shaped pressing plate can fix the optical fiber in the second U-shaped groove by means of the torsion force of the torsion spring, the two clamping grooves are aligned with the two V-shaped positioning plates, the optical fiber clamp is pushed towards the LC connector, the optical fiber clamp is pushed into the LC connector, the V-shaped positioning plates can slide in the clamping grooves, when the clamping buckle is in contact with the clamping plates, the optical fiber clamp is continuously pushed, the clamping buckle can slide on the clamping plates and can deform the clamping buckle, when the clamping buckle crosses the clamping plates, the optical fiber clamp can be firmly fixed on the LC connector by the clamping grooves, the V-shaped positioning plates, the clamping buckle and the clamping plates, whether the optical fiber is bent or not can be checked through the window, if the optical fiber is bent, checking the bending condition of the optical fiber through the window, pulling the optical fiber, enabling the optical fiber to slide on the second U-shaped groove and the arc-shaped pressing plate, stopping pulling the optical fiber when the optical fiber is not bent, pressing the clamp cover through the round opening, enabling the semi-sphere to be clamped into the round hole, enabling the arc-shaped pressing plate to tightly clamp the optical fiber, and finally fixing and connecting the glass fiber of the optical fiber with the LC connector by using the V-shaped wedge;
s5, testing: the LC connector to which the optical fiber is mounted is tested using an OTDR or optical power meter.
Preferably, a bearing is welded on the inner wall of the first through hole, one end of the positive and negative tooth bidirectional screw rod penetrates through an inner ring of the bearing and extends to one side of the bearing, and the outer wall of the positive and negative tooth bidirectional screw rod is welded with the inner ring of the bearing.
Preferably, the two moving plates are provided with second through holes, the inner walls of the two second through holes are respectively welded with an orthodontic lead screw nut and a counter lead screw nut, one end of the positive and negative two-way lead screw penetrates through the orthodontic lead screw nut and the counter lead screw nut respectively and extends to one side of the moving plate, and the orthodontic lead screw nut and the counter lead screw nut are in threaded connection with the positive and negative two-way lead screw.
Preferably, the both sides of tray all are provided with the waist hole, the equal fixed mounting in both sides of arc has the cylinder, and the one end that two cylinders kept away from each other all welds the round bar, the one end of round bar runs through the waist hole and welds and have the limiting plate, and one side that two cylinders kept away from each other contacts with the both sides inner wall of tray respectively, and one side that two limiting plates are close to each other contacts with the both sides of tray respectively.
Preferably, a rubber pad is arranged on the inner wall of the bottom of the arc-shaped pressing plate, two mounting columns are symmetrically and fixedly mounted at the top of the arc-shaped pressing plate, and the tops of the mounting columns are fixedly connected with the bottom of the clamp cover.
The invention has the following advantages:
1. according to the invention, the butterfly-shaped optical cable stripper is used for cutting off redundant optical fiber sheaths to ensure that the cutting sections are neat, the optical cable coating layers are exposed, the clamp cover is opened, the optical fibers are placed in the second U-shaped groove, the cutting sections of the optical fiber sheaths are aligned with the inner wall of the optical fiber clamp without gaps, then the clamp cover is loosened, the arc-shaped pressing plate can clamp the optical fibers between the second U-shaped groove and the arc-shaped pressing plate under the action of the torsion spring, the clamp cover can be contacted with the semi-sphere, the clamp cover can be pressed downwards at the moment, the clamp cover can be extruded with the semi-sphere, the semi-sphere can be forced to enter the circular hole and be contacted with the inner wall of the circular hole, the clamp cover can drive the arc-shaped pressing plate to approach the optical fibers and further extrude the optical fibers, the optical fibers can be firmly fixed in the optical fiber clamp, the stability and the unbending of the optical fibers can be ensured, and the optical fibers can be stably and reliably placed.
2. According to the invention, the optical fiber clamp is aligned between the two positioning plates, the optical fiber is aligned to the first U-shaped groove, the optical fiber clamp is placed between the two positioning plates, when the optical fiber clamp is contacted with the arc-shaped plate, the optical fiber clamp is pushed downwards, the optical fiber clamp can slide on the arc-shaped plate and extrude the arc-shaped plate, the arc-shaped plate can move in the direction away from the positioning plates, the spring can be compressed, when the bottom of the optical fiber clamp is contacted with the inner wall of the bottom of the tray, the optical fiber clamp is released, under the elastic force action of the spring, the optical fiber clamp can be tightly attached to the inner wall of the tray without gap, and further, the optical fiber clamp can be firmly fixed in the tray.
3. After the optical fiber clamp is fixed in the tray, the rotary handle can drive the positive and negative tooth bidirectional screw rod to rotate, the positive and negative tooth bidirectional screw rod can drive the two arc-shaped cutting knives to move towards the direction close to each other, then the two arc-shaped cutting knives can contact with the optical cable coating layer of the optical fiber, the rotary handle is continuously rotated, when the two arc-shaped cutting knives contact, the rotary handle is stopped, in the process, the two arc-shaped cutting knives can cut the optical cable coating layer of the optical fiber, the push rod can be pushed to drive the circular plate to do circular motion by taking the center of the optical fiber as the center of a circle, the push rod can drive the first magnet to be separated from the second magnet, in addition, the circular plate can drive the two arc-shaped cutting knives to do circular motion, because the position of the optical fiber is fixed, the two arc-shaped cutting knives can cut on the optical fiber along the circular route, after the circular plate rotates 90 degrees, can all cut the optical cable coating on the optic fibre, the stall push rod and the back thrust push rod to home position this moment, and then can make the plectane reset, first magnet can contact and inhale together with the second magnet again this moment, then can brake the plectane, makes the optical fiber anchor clamps hug closely the bottom inner wall of tray and to the direction pulling optical fiber anchor clamps of keeping away from the locating plate, then can make the optical cable coating that cuts break away from optic fibre and expose the glass silk.
4. The invention pushes the arc-shaped plate towards the direction far away from the positioning plate to separate the arc-shaped plate from the optical fiber clamp, the optical fiber clamp and the optical fiber with the coating layer of the optical cable stripped can be taken out from the tray, the clamp cover is pulled upwards to separate the semi-sphere from the round hole, at the moment, the arc-shaped pressing plate can fix the optical fiber in the second U-shaped groove by the torsion force of the torsion spring, the two clamping grooves are aligned with the two V-shaped positioning plates, the optical fiber clamp is pushed towards the LC connector, the optical fiber clamp is pushed into the LC connector, the buckle can slide on the clamping plate and can deform the buckle, when the buckle passes the clamping plate, the buckle can reset and be clamped on the clamping plate, the optical fiber clamp can be firmly fixed on the LC connector by the clamping grooves, the V-shaped positioning plates, the buckle and the clamping plate, whether the optical fiber is bent or not can be checked through the window, if the bending condition of the optical fiber is checked through the window, pulling optic fibre, then optic fibre can slide on second U type groove and arc clamp plate, when optic fibre is not crooked, stops to pull optic fibre to press down the anchor clamps lid through the round mouth, make the semicircle ball card go into the round hole, make the tight optic fibre of clamp of arc clamp plate fastening, use V type wedge at last to be connected the glass silk of optic fibre and LC connector fixed.
5. The installation method has the advantages of simple construction operation, time saving compared with the traditional hot melting, passive construction, no need of electricity or other precise instruments, no special requirement on the operation environment, cost saving, no need of a welding machine, cost reduction, 95 percent of antenna wire rate and convenient later maintenance and replacement.
Drawings
FIG. 1 is a three-dimensional schematic view of a tray of the present invention;
FIG. 2 is a schematic view of a fiber clamp of the present invention placed in a tray;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a rear view of FIG. 2;
FIG. 5 is a top view of FIG. 2;
FIG. 6 is a left side view of FIG. 2;
FIG. 7 is a right side view of FIG. 2;
FIG. 8 is an exploded view of the tray and fiber clamp of the present invention;
FIG. 9 is a schematic view of a fiber clamp with the clamp cover open to receive an optical fiber according to the present invention;
FIG. 10 is a schematic view of a fiber clamp configuration with the clamp cover open according to the present invention;
FIG. 11 is a top view of FIG. 10;
FIG. 12 is a front view of FIG. 10;
FIG. 13 is a schematic view of the fiber clamp installed in an LC connector;
FIG. 14 is an enlarged view of portion A of FIG. 13;
FIG. 15 is an enlarged view of portion B of FIG. 13;
FIG. 16 is a front view of FIG. 13;
FIG. 17 is a side view of FIG. 13;
FIG. 18 is an enlarged view of portion C of FIG. 17;
FIG. 19 is an exploded view of the fiber clamp and LC connector;
FIG. 20 is a three-dimensional schematic view of an arcuate plate of the present invention;
FIG. 21 is a three-dimensional schematic view of a circular plate of the present invention;
FIG. 22 is a side view of FIG. 21;
FIG. 23 is a schematic view of the connection of the pallet and the endless track;
FIG. 24 is an enlarged view of portion D of FIG. 23;
FIG. 25 is a top view of FIG. 23;
FIG. 26 is a schematic view of the connection of a first magnet and a second magnet;
FIG. 27 is a schematic view of the attachment of the clamp cover and the arcuate platen;
FIG. 28 is a three-dimensional schematic view of an arcuate platen;
fig. 29 is a front view of fig. 28.
In the figure, 1, a tray; 2. an optical fiber clamp; 3. a circular plate; 4. a cylinder; 5. a first U-shaped groove; 6. a spring; 7. an optical fiber; 8. a waist hole; 9. a limiting plate; 10. an arc-shaped plate; 11. positioning a plate; 12. an arc-shaped cutting knife; 13. a clamp cover; 14. a window; 15. an LC connector; 16. a round mouth; 17. a V-shaped positioning plate; 18. clamping a plate; 19. a second U-shaped groove; 20. buckling; 21. a card slot; 22. an arc-shaped pressing plate; 23. a circular hole; 24. a torsion spring; 25. mounting a column; 26. a rotating shaft; 27. a semi-sphere; 28. an annular guide rail; 29. a round bar; 30. a third U-shaped groove; 31. a handle; 32. a sliding plate; 33. a positive and negative teeth bidirectional screw rod; 34. a push rod; 35. moving the plate; 36. a vertical plate; 37. a guide rail; 38. a slider; 39. a first magnet; 40. an arc-shaped sliding block; 41. a second magnet.
Detailed Description
The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:
the first embodiment is as follows: as shown in fig. 1-29, a cold-pressing installation method for an urban rail transit 5G antenna optical cable comprises a tray 1, an LC connector 15 and an optical fiber clamp 2, wherein the inner walls of two sides of the tray 1 are slidably connected with the same arc-shaped plate 10, the bottom of the arc-shaped plate 10 is in contact with the inner wall of the bottom of the tray 1, one side of the arc-shaped plate 10 is symmetrically welded with two springs 6, one end of each spring 6 is welded with the inner wall of one side of the tray 1, two sides of the top of the tray 1 and the top of the arc-shaped plate 10 are both provided with a first U-shaped groove 5, one side of the tray 1 is rotatably connected with a circular plate 3, the top of the circular plate 3 is provided with a third U-shaped groove 30, one side of the circular plate 3 is symmetrically welded with two vertical plates 36, one of the vertical plates 36 is provided with a first through hole, the inner wall of the first through hole is rotatably connected with a positive and negative tooth bidirectional screw rod 33, one end of the positive and negative tooth bidirectional screw rod 33 penetrates through the first through hole and is rotatably connected with the other vertical plate 36, two moving plates 35 are symmetrically and rotatably connected to the outer wall of the positive and negative tooth bidirectional screw 33, a sliding plate 32 is fixedly mounted at the top of the moving plate 35, one side of the sliding plate 32 is rotatably connected with one side of a circular plate 3, an arc-shaped cutting knife 12 is fixedly mounted at the top of the sliding plate 32, the arc-shaped cutting knife 12 is positioned on two sides of a third U-shaped groove 30, a second magnet 41 is fixedly mounted at the bottom of one side of the tray 1, a second through hole is formed in the bottom of one side of the arc-shaped cutting knife 12, a push rod 34 is welded to the inner wall of the second through hole, one end of the push rod 34 penetrates through the second through hole and extends to one side of the circular plate 3, a first magnet 39 is fixedly sleeved on the outer wall of the push rod 34, the first magnet 39 is positioned between the circular plate 3 and the tray 1, and the first magnet 39 is contacted with and attracted with the second magnet 41;
the top of the optical fiber clamp 2 is provided with a second U-shaped groove 19, the bottom inner wall of the second U-shaped groove 19 is provided with an optical fiber 7, the bottom of the optical fiber 7 is contacted with the bottom inner wall of the second U-shaped groove 19, the top and the bottom of two sides of the optical fiber clamp 2 are both provided with buckles 20, the inner walls of two sides of the optical fiber clamp 2 are both rotatably connected with rotating shafts 26, one side of the two rotating shafts 26 close to each other is welded with the same arc-shaped pressing plate 22, the outer wall of the rotating shaft 26 is sleeved with a torsion spring 24, the ends of the two torsion springs 24 far away from each other are respectively fixedly connected with the inner walls of two sides of the optical fiber clamp 2, the ends of the two torsion springs 24 close to each other are respectively fixedly connected with two sides of the arc-shaped pressing plate 22, the top inner wall of the arc-shaped pressing plate 22 is contacted with the top of the optical fiber 7, the top of the arc-shaped pressing plate 22 is fixedly provided with a clamp cover 13, one side of the clamp cover 13 is provided with a round hole 23, one side of the inner wall of the optical fiber clamp 2 is provided with a semi-round ball 27 matched with the round hole 23, the semi-spherical ball 27 extends into the round hole 23 and contacts with the round hole 23;
the window 14 is arranged on four sides of the LC connector 15, the round opening 16 is arranged on the top of the LC connector 15, the round opening 16 is located on one side of the window 14, and the clamping plates 18 matched with the clamping buckles 20 are arranged on the top and the bottom of two sides of the LC connector 15.
In the invention, an annular guide rail 28 is fixedly arranged on one side of a tray 1, three arc-shaped sliding blocks 40 which are arranged at equal intervals are fixedly arranged on one side of a circular plate 3 close to the tray 1, the arc-shaped sliding blocks 40 and one side of the circular guide rail 28 which is connected with the circular plate 3 in a sliding way are fixedly arranged with a guide rail 37, the guide rail 37 is arranged below a third U-shaped groove 30, one side of a sliding plate 32 is fixedly arranged with a sliding block 38, the sliding block 38 and the guide rail 37 are connected with the inner wall of a first through hole in a sliding way and are welded with a bearing, one end of a positive and negative tooth bidirectional screw 33 penetrates through the inner ring of the bearing and extends to one side of the bearing, the outer wall of the positive and negative tooth bidirectional screw 33 and the inner ring of the bearing are welded with one end of the positive and negative tooth bidirectional screw 33, a handle 31 is welded on two moving plates 35 which are arranged on one side of a vertical plate 36 of the handle 31, and inner walls of the two second through holes are respectively welded with a positive tooth screw nut and a negative tooth screw nut, one end of the positive and negative two-way lead screw 33 respectively penetrates through the positive lead screw nut and the negative lead screw nut and extends to one side of the movable plate 35, the positive lead screw nut and the negative lead screw nut are both in threaded connection with the positive and negative two-way lead screw 33, the urban rail transit 5G antenna optical cable cold pressing installation auxiliary device according to the embodiment of claim 6 is in threaded connection with the positive and negative two-way lead screw 33, V-shaped positioning plates 17 are arranged at the middle positions of the inner walls of the two sides of the LC connector 15, waist holes 8 are arranged at the two sides of the clamping groove 21 tray 1 matched with the V-shaped positioning plates 17 at the central positions of the two sides of the optical fiber clamp 2, cylinders 4 are fixedly arranged at the two sides of the arc-shaped plate 10, round rods 29 are welded at the ends, far away from the two cylinders 4, limiting plates 9 penetrate through the waist holes 8 and are welded at one ends of the round rods 29, one far away from the two cylinders 4 are respectively in contact with the inner walls of the two sides of the tray 1, one close side of the two limiting plates 9 is respectively in contact with the bottom of the arc-shaped pressing plate 22 at the two sides of the tray 1 The wall is provided with a rubber pad, the top of the arc-shaped pressing plate 22 is symmetrically and fixedly provided with two mounting columns 25, the tops of the mounting columns 25 are fixedly connected with the bottom of the clamp cover 13, the inner wall of one side of the tray 1 is symmetrically and fixedly provided with two positioning plates 11, and the two positioning plates 11 are respectively positioned on two sides of the first U-shaped groove 5.
The method for installing the 5G antenna optical cable by cold pressing the auxiliary device comprises the following steps:
s1, cutting of the optical fiber sheath: firstly, cutting off redundant optical fiber sheaths by using a butterfly-shaped optical cable stripper to ensure that the cut sections are neat and an optical cable coating layer is exposed;
s2, fixing optical fiber 7: opening the clamp cover 13, placing the optical fiber 7 into the second U-shaped groove 19, aligning the cut surface of the optical fiber sheath with the inner wall of the optical fiber clamp 2 without clearance, then loosening the clamp cover 13, rotating the arc-shaped pressing plate 22 in the direction of the optical fiber by the torsion force of the torsion spring 24, contacting the arc-shaped pressing plate 22 with the optical fiber 7, and under the action of the torsion spring 24, clamping the optical fiber 7 between the second U-shaped groove 19 and the arc-shaped pressing plate 22 by the arc-shaped pressing plate 22, driving the mounting post 25 and the clamp cover 13 to rotate, contacting the clamp cover 13 with the semi-sphere 27, pressing the clamp cover 13 downwards, squeezing the clamp cover 13 with the semi-sphere 27, forcing the semi-sphere 27 into the circular hole 23 and contacting the inner wall of the circular hole 23, driving the arc-shaped pressing plate 22 to approach the optical fiber 7 and further squeeze the optical fiber 7 by the clamp cover 13, and further fixing the optical fiber 7 in the optical fiber clamp 2, the optical fiber 7 can be ensured to be stable and not bent, and the arrangement is stable and reliable;
s3, stripping the optical cable coating layer, which comprises the following steps:
s31, aligning the optical fiber clamp 2 between the two positioning plates 11, aligning the optical fiber 7 to the first U-shaped groove 5, placing the optical fiber clamp 2 between the two positioning plates 11, pushing the optical fiber clamp 2 downwards when the optical fiber clamp 2 contacts the arc plate 10, enabling the optical fiber clamp 2 to slide on the arc plate 10 and extrude the arc plate 10, enabling the arc plate 10 to move in a direction away from the positioning plates 11, compressing the spring 6, driving the round rod 29 to slide in the waist hole 8 by the arc plate 10, releasing the optical fiber clamp 2 when the bottom of the optical fiber clamp 2 contacts the inner wall of the bottom of the tray 1, enabling the optical fiber clamp 2 to be tightly attached to the inner wall of the tray 1 without clearance under the elastic force of the spring 6, and further enabling the optical fiber clamp 2 to be firmly fixed in the tray 1;
s32, after the optical fiber clamp 2 is fixed in the tray 1, the handle 31 is rotated, the handle 31 can drive the positive and negative teeth bidirectional screw rod 33 to rotate, because the thread on the handle 31 is bidirectional, the positive and negative teeth bidirectional screw rod 33 can drive the two movable plates 35 to move in the direction of approaching each other, the two movable plates 35 can respectively drive the two sliding plates 32 to move in the direction of approaching each other, the sliding plates 32 can drive the sliding blocks 38 to slide on the guide rails 37, and the two sliding plates 32 can respectively drive the two arc-shaped cutters 12 to move in the direction of approaching each other, so that the two arc-shaped cutters 12 can contact with the optical cable coating layer of the optical fiber 7, the handle 31 is continuously rotated, when the two arc-shaped cutters 12 contact, the handle 31 is stopped, and in the process, the two arc-shaped cutters 12 can cut the optical cable coating layer of the optical fiber 7, the push rod 34 is pushed, the push rod 34 can drive the circular plate 3 to do circular motion by taking the center of the optical fiber 7 as the center of a circle, the circular plate 3 can drive the arc-shaped sliding block 40 to slide on the annular guide rail 28, the push rod 34 can drive the first magnet 39 to be separated from the second magnet 41, in addition, the circular plate 3 can drive the two arc-shaped cutters 12 to do circular motion, because the position of the optical fiber 7 is fixed, the two arc-shaped cutters 12 can cut on the optical fiber 7 along the circular path, after the circular plate 3 rotates for 90 degrees, the optical cable coating layer on the optical fiber 7 can be cut, at the moment, the push rod 34 is stopped to rotate and the push rod 34 is pushed back to the original position, the circular plate 3 can be reset, at the moment, the first magnet 39 can be contacted with the second magnet 41 again and is sucked together, and the circular plate 3 can be braked;
s33, the optical fiber clamp 2 is tightly attached to the inner wall of the bottom of the tray 1, the optical fiber clamp 2 is pulled in the direction away from the positioning plate 11, the optical fiber clamp 2 can drive the optical fiber 7 to move, and the arc-shaped cutter 12 is still clamped in the optical cable coating layer of the optical fiber 7, so that the arc-shaped cutter 12 can abut against the cut optical cable coating layer when the optical fiber 7 moves, and the cut optical cable coating layer can be separated from the optical fiber 7 and expose a glass fiber in the process that the optical fiber 7 continuously moves;
s4, inserting the fiber clamp 2 into the LC connector 15: the arc-shaped plate 10 is pushed in the direction far away from the positioning plate 11, the arc-shaped plate 10 is separated from the optical fiber clamp 2, the optical fiber clamp 2 and the optical fiber 7 with the optical cable coating removed can be taken out of the tray 1, the clamp cover 13 is pulled upwards, the semi-sphere 27 is separated from the round hole 23, the arc-shaped pressing plate 22 can be made to fix the optical fiber 7 in the second U-shaped groove 19 by means of the torsion spring 24, the two clamping grooves 21 are aligned with the two V-shaped positioning plates 17, the optical fiber clamp 2 is pushed in the direction of the LC connector 15, the optical fiber clamp 2 is pushed into the LC connector 15, the V-shaped positioning plates 17 can slide in the clamping grooves 21, when the buckle 20 contacts the clamping plate 18, the optical fiber clamp 2 is continuously pushed, the buckle 20 can slide on the clamping plate 18 and can deform the buckle 20, when the buckle 20 crosses the clamping plate 18, the buckle 20 can reset and can be clamped on the clamping plate 18, and the optical fiber can pass through the clamping grooves 21 and the V-shaped positioning plates 17, The buckle 20 and the clamping plate 18 can firmly fix the optical fiber clamp 2 on the LC connector 15, check whether the optical fiber 7 is bent or not through the window 14, check the bending condition of the optical fiber 7 through the window 14 while pulling the optical fiber 7 if the optical fiber 7 is bent, stop pulling the optical fiber 7 when the optical fiber 7 is not bent, press the clamp cover 13 through the round opening 16 to clamp the semi-spherical ball 27 into the round hole 23 to clamp the optical fiber 7 tightly by the arc-shaped pressing plate 22, and finally fix and connect the glass fiber of the optical fiber with the LC connector 15 by using a V-shaped wedge;
s5, testing: the LC connector 15 to which the optical fiber is mounted is tested using an OTDR or optical power meter.
The working principle is as follows: the invention firstly uses a butterfly-shaped optical cable stripper to cut off redundant optical fiber sheaths to ensure that the cutting sections are neat, the optical cable coating layer is exposed, the clamp cover 13 is opened, the optical fiber 7 is placed in the second U-shaped groove 19, the cutting sections of the optical fiber sheaths are aligned with the inner wall of the optical fiber clamp 2 without clearance, then the clamp cover 13 is loosened, the torsion force of the torsion spring 24 can enable the arc-shaped pressing plate 22 to rotate towards the optical fiber, the arc-shaped pressing plate 22 can be contacted with the optical fiber 7, under the action of the torsion spring 24, the arc-shaped pressing plate 22 can clamp the optical fiber 7 between the second U-shaped groove 19 and the arc-shaped pressing plate 22, simultaneously the arc-shaped pressing plate 22 can drive the mounting column 25 and the clamp cover 13 to rotate, the clamp cover 13 can be contacted with the semi-sphere 27, at the moment, the clamp cover 13 can be pressed downwards, the clamp cover 13 can be extruded with the semi-sphere 27, the semi-sphere 27 can be forced to enter the circular hole 23 and be contacted with the inner wall of the circular hole 23, then the clamp cover 13 can drive the arc-shaped pressing plate 22 to approach the optical fiber 7 and further extrude the optical fiber 7, and further firmly fix the optical fiber 7 in the optical fiber clamp 2, so as to ensure that the optical fiber 7 is stably and unbent, and is stably and reliably placed, the optical fiber clamp 2 is aligned between the two positioning plates 11, the optical fiber 7 is aligned to the first U-shaped groove 5, the optical fiber clamp 2 is placed between the two positioning plates 11, when the optical fiber clamp 2 contacts the arc-shaped plate 10, the optical fiber clamp 2 is pushed downwards, the optical fiber clamp 2 slides on the arc-shaped plate 10 and extrudes the arc-shaped plate 10, the arc-shaped plate 10 moves away from the positioning plates 11, and simultaneously compresses the spring 6, in addition, the arc-shaped plate 10 can drive the round rod 29 to slide in the waist hole 8, when the bottom of the optical fiber clamp 2 contacts with the inner wall of the bottom of the tray 1, the optical fiber clamp 2 is released, under the elastic force of the spring 6, the optical fiber clamp 2 can be tightly attached to the inner wall of the tray 1 without clearance, and then the optical fiber clamp 2 can be firmly fixed in the tray 1, after the optical fiber clamp 2 is fixed in the tray 1, the handle 31 is rotated, the handle 31 can drive the positive and negative two-way screw rod 33 to rotate, because the thread on the handle 31 is two-way, the positive and negative two-way screw rod 33 can drive the two moving plates 35 to move towards the mutually approaching direction, the two moving plates 35 can respectively drive the two sliding plates 32 to move towards the mutually approaching direction, the sliding plates 32 can drive the sliding blocks 38 to slide on the guide rails 37, and the two sliding plates 32 can respectively drive the two arc cutters 12 to move towards the mutually approaching direction, so that the two arc cutters 12 can contact with the optical cable coating layer of the optical fiber 7, the handle 31 is continuously rotated, when the two arc cutters 12 contact, stopping rotating the handle 31, in this process, the two arc-shaped cutters 12 will cut the optical cable coating of the optical fiber 7, pushing the push rod 34, the push rod 34 can drive the circular plate 3 to make circular motion around the center of the optical fiber 7, the circular plate 3 can drive the arc-shaped slider 40 to slide on the annular guide rail 28, the push rod 34 can drive the first magnet 39 to separate from the second magnet 41, in addition, the circular plate 3 can drive the two arc-shaped cutters 12 to make circular motion, because the position of the optical fiber 7 is fixed, the two arc-shaped cutters 12 can cut along the circumferential route on the optical fiber 7, after the circular plate 3 rotates 90 degrees, the optical cable coating on the optical fiber 7 can be cut, at this moment, stopping rotating the push rod 34 and pushing the push rod 34 back to the original position, and then the circular plate 3 can be reset, at this moment, the first magnet 39 will contact with the second magnet 41 again and be sucked together, the circular plate 3 can be braked, so that the optical fiber clamp 2 is tightly attached to the inner wall of the bottom of the tray 1 and pulls the optical fiber clamp 2 in the direction away from the positioning plate 11, the optical fiber clamp 2 can drive the optical fiber 7 to move, because the optical cable coating layer of the optical fiber 7 is cut, and the arc-shaped cutter 12 is still clamped in the optical cable coating layer of the optical fiber 7, when the optical fiber 7 moves, the arc-shaped cutter 12 can abut against the cut optical cable coating layer, in the process that the optical fiber 7 continuously moves, the cut optical cable coating layer can be separated from the optical fiber 7 and expose the glass fiber, the arc-shaped plate 10 is pushed in the direction away from the positioning plate 11, so that the arc-shaped plate 10 is separated from the optical fiber clamp 2, the optical fiber clamp 2 and the optical fiber 7 with the optical cable coating layer removed can be taken out from the tray 1, the clamp cover 13 is pulled upwards, the semi-circular ball 27 is separated from the circular hole 23, at this time, the torsion of the torsion spring 24 can make the arc-shaped press plate 22 fix the optical fiber 7 in the second U-shaped groove 19, aligning the two clamping grooves 21 with the two V-shaped positioning plates 17, pushing the optical fiber clamp 2 towards the LC connector 15, pushing the optical fiber clamp 2 into the LC connector 15, sliding the V-shaped positioning plates 17 in the clamping grooves 21, when the buckle 20 contacts the clamping plate 18, continuing to push the optical fiber clamp 2, sliding the buckle 20 on the clamping plate 18 and deforming the buckle 20, when the buckle 20 crosses the clamping plate 18, resetting and clamping the buckle 20 on the clamping plate 18, firmly fixing the optical fiber clamp 2 on the LC connector 15 through the clamping grooves 21, the V-shaped positioning plates 17, the buckle 20 and the clamping plate 18, checking whether the optical fiber 7 is bent through the window 14, if so, checking the bending condition of the optical fiber 7 through the window 14, pulling the optical fiber 7, sliding the optical fiber 7 on the second U-shaped groove 19 and the arc-shaped pressing plate 22, when the optical fiber 7 is not bent, stopping pulling the optical fiber 7, pressing the clamp cover 13 through the round opening 16, enabling the semi-sphere 27 to be clamped into the round hole 23, enabling the arc-shaped pressing plate 22 to tightly clamp the optical fiber 7, finally fixing and connecting the glass fiber of the optical fiber with the LC connector 15 by using a V-shaped wedge, and testing the LC connector 15 provided with the optical fiber by using an OTDR or an optical power meter.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides an urban rail transit 5G antenna optical cable installation method of colding pressing, utilizes auxiliary device to carry out the optic fibre installation, auxiliary device includes tray (1), LC connector (15) and fiber clamp (2), its characterized in that:
the tray is characterized in that the inner walls of two sides of the tray (1) are connected with the same arc-shaped plate (10) in a sliding manner, the bottom of the arc-shaped plate (10) is in contact with the inner wall of the bottom of the tray (1), two springs (6) are symmetrically welded on one side of the arc-shaped plate (10), one end of each spring (6) is welded with the inner wall of one side of the tray (1), the two sides of the top of the tray (1) and the top of the arc-shaped plate (10) are respectively provided with a first U-shaped groove (5), two positioning plates (11) are symmetrically and fixedly installed on the inner wall of one side of the tray (1), the two positioning plates (11) are respectively positioned on two sides of the first U-shaped groove (5), one side of the tray (1) is rotatably connected with a circular plate (3), the top of the circular plate (3) is provided with a third U-shaped groove (30), two vertical plates (36) are symmetrically welded on one side of the circular plate (3), and a first through hole is arranged on one vertical plate (36), the inner wall of the first through hole is rotatably connected with a positive and negative tooth bidirectional screw rod (33), one end of the positive and negative tooth bidirectional screw rod (33) is welded with a handle (31), the handle (31) is positioned on one side of a vertical plate (36), one end of the positive and negative tooth bidirectional screw rod (33) penetrates through the first through hole and is rotatably connected with another vertical plate (36), the outer wall of the positive and negative tooth bidirectional screw rod (33) is symmetrically and rotatably connected with two moving plates (35), the top of each moving plate (35) is fixedly provided with a sliding plate (32), one side of each sliding plate (32) is rotatably connected with one side of a circular plate (3), the top of each sliding plate (32) is fixedly provided with an arc-shaped cutting knife (12), the arc-shaped cutting knives (12) are positioned on two sides of a third U-shaped groove (30), and the bottom of one side of the tray (1) is fixedly provided with a second magnet (41), a second through hole is formed in the bottom of one side of the arc-shaped cutting knife (12), a push rod (34) is welded to the inner wall of the second through hole, one end of the push rod (34) penetrates through the second through hole and extends to one side of the circular plate (3), a first magnet (39) is fixedly sleeved on the outer wall of the push rod (34), the first magnet (39) is located between the circular plate (3) and the tray (1), and the first magnet (39) is in contact with and attracts the second magnet (41); an annular guide rail (28) is fixedly installed on one side of the tray (1), three arc-shaped sliding blocks (40) which are arranged at equal intervals are fixedly installed on one side, close to the tray (1), of the circular plate (3), the arc-shaped sliding blocks (40) are connected with the annular guide rail (28) in a sliding mode, a guide rail (37) is fixedly installed on one side of the circular plate (3), the guide rail (37) is located below the third U-shaped groove (30), a sliding block (38) is fixedly installed on one side of the sliding plate (32), and the sliding block (38) is connected with the guide rail (37) in a sliding mode;
the optical fiber fixture is characterized in that a second U-shaped groove (19) is formed in the top of the optical fiber fixture (2), optical fibers (7) are arranged on the inner wall of the bottom of the second U-shaped groove (19), the bottom of each optical fiber (7) is in contact with the inner wall of the bottom of the second U-shaped groove (19), buckles (20) are arranged at the top and the bottom of each side of the optical fiber fixture (2), rotating shafts (26) are rotatably connected to the inner walls of the two sides of the optical fiber fixture (2), the same arc-shaped pressing plate (22) is welded at one side, close to each other, of the two rotating shafts (26), torsion springs (24) are sleeved on the outer wall of the rotating shafts (26), one ends, far away from each other, of the two torsion springs (24) are fixedly connected with the inner walls of the two sides of the optical fiber fixture (2) respectively, one ends, close to each other, of the two torsion springs (24) are fixedly connected with the two sides of the arc-shaped pressing plate (22) respectively, the inner wall of the top of the arc-shaped pressing plate (22) is in contact with the top of the optical fibers (7), a clamp cover (13) is fixedly mounted at the top of the arc-shaped pressing plate (22), a round hole (23) is formed in one side of the clamp cover (13), a semi-sphere (27) matched with the round hole (23) is arranged on the inner wall of one side of the optical fiber clamp (2), and the semi-sphere (27) extends into the round hole (23) and is in contact with the round hole (23);
windows (14) are arranged on four sides of the LC connector (15), round openings (16) are arranged at the top of the LC connector (15), the round openings (16) are located on one side of the windows (14), clamping plates (18) matched with the buckles (20) are arranged at the top and the bottom of two sides of the LC connector (15), V-shaped positioning plates (17) are arranged in the middle positions of the inner walls of the two sides of the LC connector (15), and clamping grooves (21) matched with the V-shaped positioning plates (17) are arranged in the center positions of the two sides of the optical fiber clamp (2);
utilize auxiliary device cold pressing installation 5G antenna cable's worker method specifically includes the following step:
s1, cutting of the optical fiber sheath: firstly, cutting off redundant optical fiber sheaths by using a butterfly-shaped optical cable stripper to ensure that the cut sections are neat and an optical cable coating layer is exposed;
s2, fixing of optical fiber (7): opening the clamp cover (13), putting the optical fiber (7) into the second U-shaped groove (19), aligning the cut surface of the optical fiber sheath with the inner wall of the optical fiber clamp (2) without clearance, then loosening the clamp cover (13), rotating the arc-shaped pressing plate (22) towards the direction of the optical fiber by the torsion force of the torsion spring (24), contacting the optical fiber (7) by the arc-shaped pressing plate (22), clamping the optical fiber (7) between the second U-shaped groove (19) and the arc-shaped pressing plate (22) under the action of the torsion spring (24), simultaneously driving the mounting column (25) and the clamp cover (13) to rotate by the arc-shaped pressing plate (22), contacting the semi-sphere (27) by the clamp cover (13), pressing the clamp cover (13) downwards at the moment, extruding the clamp cover (13) and the semi-sphere (27), forcing the semi-sphere (27) to enter the round hole (23) and contact with the inner wall of the round hole (23), then the clamp cover (13) drives the arc-shaped pressing plate (22) to approach the optical fiber (7) and further extrude the optical fiber (7), so that the optical fiber (7) is firmly fixed in the optical fiber clamp (2), the optical fiber (7) is ensured to be stable and not bent, and the arrangement is stable and reliable;
s3, stripping the optical cable coating layer, which comprises the following steps:
s31, aligning the optical fiber clamp (2) between two positioning plates (11), aligning the optical fiber (7) to a first U-shaped groove (5), placing the optical fiber clamp (2) between the two positioning plates (11), pushing the optical fiber clamp (2) downwards when the optical fiber clamp (2) contacts with an arc plate (10), the optical fiber clamp (2) can slide on the arc plate (10) and extrude the arc plate (10), the arc plate (10) can move towards the direction far away from the positioning plates (11) and can compress a spring (6), in addition, the arc plate (10) drives a round rod (29) to slide in a waist hole (8), when the bottom of the optical fiber clamp (2) contacts with the inner wall of the bottom of the tray (1), loosening the optical fiber clamp (2), and enabling the optical fiber clamp (2) to be tightly attached to the inner wall of the tray (1) without clearance under the elastic force of the spring (6), further firmly fixing the optical fiber clamp (2) in the tray (1);
s32, after the optical fiber clamp (2) is fixed in the tray (1), the handle (31) is rotated, the handle (31) drives the positive and negative teeth bidirectional screw rod (33) to rotate, because the thread on the handle (31) is bidirectional, the positive and negative teeth bidirectional screw rod (33) drives the two moving plates (35) to move towards the direction close to each other, the two moving plates (35) respectively drive the two sliding plates (32) to move towards the direction close to each other, the sliding plates (32) drive the sliding blocks (38) to slide on the guide rails (37), and the two sliding plates (32) respectively drive the two arc-shaped cutters (12) to move towards the direction close to each other, then the two arc-shaped cutters (12) can contact with the coating layer of the optical fiber (7), the handle (31) is continuously rotated, when the two arc-shaped cutters (12) contact, the handle (31) is stopped to rotate, in the process, the two arc-shaped cutters (12) can cut the optical cable coating layer of the optical fiber (7), the push rod (34) is pushed, the push rod (34) drives the circular plate (3) to do circular motion by taking the center of the optical fiber (7) as the circle center, the circular plate (3) drives the arc-shaped sliding block (40) to slide on the annular guide rail (28), the push rod (34) drives the first magnet (39) to separate from the second magnet (41), in addition, the circular plate (3) drives the two arc-shaped cutters (12) to do circular motion, because the position of the optical fiber (7) is fixed, the two arc-shaped cutters (12) cut on the optical fiber (7) along the circular path, after the circular plate (3) rotates for 90 degrees, the optical cable coating layer on the optical fiber (7) is cut, at the moment, the push rod (34) stops rotating and pushes the push rod (34) to the original position reversely, and the circular plate (3) is reset, at the moment, the first magnet (39) is contacted with the second magnet (41) again and is attracted together, and the circular plate (3) is braked;
s33, enabling the optical fiber clamp (2) to cling to the inner wall of the bottom of the tray (1) and pulling the optical fiber clamp (2) in the direction far away from the positioning plate (11), driving the optical fiber (7) to move by the optical fiber clamp (2), wherein the optical cable coating layer of the optical fiber (7) is cut, and the arc-shaped cutter (12) is still clamped in the optical cable coating layer of the optical fiber (7), so that when the optical fiber (7) moves, the arc-shaped cutter (12) abuts against the cut optical cable coating layer, and in the process that the optical fiber (7) continuously moves, the cut optical cable coating layer is separated from the optical fiber (7) and glass filaments are exposed;
s4, inserting the fiber clamp (2) into the LC connector (15): pushing the arc-shaped plate (10) in the direction far away from the positioning plate (11) to separate the arc-shaped plate (10) from the optical fiber clamp (2), taking the optical fiber clamp (2) and the optical fiber (7) with the optical cable coating removed out of the tray (1), pulling the clamp cover (13) upwards to separate the semi-sphere (27) from the round hole (23), fixing the optical fiber (7) in the second U-shaped groove (19) by the arc-shaped pressing plate (22) by means of the torsion force of the torsion spring (24), aligning the two clamping grooves (21) with the two V-shaped positioning plates (17), pushing the optical fiber clamp (2) in the direction of the LC connector (15), pushing the optical fiber clamp (2) into the LC connector (15), wherein the V-shaped positioning plates (17) can slide in the clamping grooves (21), when the buckle (20) contacts the clamping plate (18), continuously pushing the optical fiber clamp (2), and then the buckle (20) can slide on the clamping plate (18) and deform, when the buckle (20) passes over the clamping plate (18), the buckle (20) can reset and be clamped on the clamping plate (18), the optical fiber clamp (2) is firmly fixed on the LC connector (15) through the clamping groove (21), the V-shaped positioning plate (17), the buckle (20) and the clamping plate (18), whether the optical fiber (7) is bent or not is checked through the window (14), if the bending occurs, the bending condition of the optical fiber (7) is checked through the window (14) while the optical fiber (7) is pulled, the optical fiber (7) will slide on the second U-shaped groove (19) and the arc-shaped pressing plate (22), when the optical fiber (7) is not bent, stopping pulling the optical fiber (7), pressing the clamp cover (13) through the round opening (16), enabling the semi-spherical ball (27) to be clamped into the round hole (23), enabling the arc-shaped pressing plate (22) to tightly clamp the optical fiber (7), and finally fixing and connecting the glass fiber of the optical fiber with the LC connector (15) by using a V-shaped wedge;
s5, testing: the LC connector (15) to which the optical fiber is mounted is tested using an OTDR or optical power meter.
2. The urban rail transit 5G antenna optical cable cold pressing installation method according to claim 1, is characterized in that: the inner wall of the first through hole is welded with a bearing, one end of the positive and negative tooth bidirectional screw rod (33) penetrates through the inner ring of the bearing and extends to one side of the bearing, and the outer wall of the positive and negative tooth bidirectional screw rod (33) is welded with the inner ring of the bearing.
3. The urban rail transit 5G antenna optical cable cold pressing installation method according to claim 1, is characterized in that: all be provided with the second through-hole on two movable plates (35), welded respectively on the inner wall of two second through-holes and have positive tooth screw-nut and anti-tooth screw-nut, the one end of two-way lead screw of positive and negative tooth (33) runs through positive tooth screw-nut and anti-tooth screw-nut respectively and extends to one side of movable plate (35), and positive tooth screw-nut and anti-tooth screw-nut all with two-way lead screw (33) threaded connection of positive and negative tooth.
4. The urban rail transit 5G antenna optical cable cold pressing installation method according to claim 1, is characterized in that: the both sides of tray (1) all are provided with waist hole (8), the equal fixed mounting in both sides of arc (10) has cylinder (4), and round bar (29) have all been welded to the one end that two cylinder (4) kept away from each other, the one end of round bar (29) runs through waist hole (8) and welds limiting plate (9), and one side that two cylinder (4) kept away from each other contacts with the both sides inner wall of tray (1) respectively, and one side that two limiting plate (9) are close to each other contacts with the both sides of tray (1) respectively.
5. The urban rail transit 5G antenna optical cable cold pressing installation method according to claim 1, is characterized in that: the novel clamp is characterized in that a rubber pad is arranged on the inner wall of the bottom of the arc-shaped pressing plate (22), two mounting columns (25) are symmetrically and fixedly mounted at the top of the arc-shaped pressing plate (22), and the tops of the mounting columns (25) are fixedly connected with the bottom of the clamp cover (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN103308983B (en) * | 2012-03-08 | 2016-06-01 | 泰科电子(上海)有限公司 | Optical fiber peeling aid |
| CN104614810B (en) * | 2013-11-04 | 2017-12-19 | 深圳日海通讯技术股份有限公司 | A kind of optical cable baring and mechanically splicing optical fiber integrating device |
| KR101794610B1 (en) * | 2016-12-22 | 2017-11-08 | 일신테크(주) | Holder of ribbon form optical fiber and method for connecting optical fiber connector for using therefor |
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