CN114114579B - Multi-contact telescopic optical cable laying device and optical cable laying method thereof - Google Patents
Multi-contact telescopic optical cable laying device and optical cable laying method thereof Download PDFInfo
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- CN114114579B CN114114579B CN202111437373.1A CN202111437373A CN114114579B CN 114114579 B CN114114579 B CN 114114579B CN 202111437373 A CN202111437373 A CN 202111437373A CN 114114579 B CN114114579 B CN 114114579B
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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
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
- G02B6/54—Underground or underwater installation; Installation through tubing, conduits or ducts using mechanical means, e.g. pulling or pushing devices
Abstract
The invention provides a multi-contact telescopic optical cable laying device and an optical cable laying method thereof, wherein the multi-contact telescopic optical cable laying device comprises: the fixing mechanism comprises a fixing block, a rotary disc and a driving end of the rotary disc, the rotary disc is connected to the fixing block in a rotating mode, the driving end is arranged on the fixing block, and the output end of the driving end is connected to the rotary disc and used for driving the rotary disc to rotate; mechanism is laid to a plurality of optical cables, mechanism is laid to a plurality of optical cables all connects in the carousel and is the circumference array and arranges, each optical cable is laid the mechanism and all includes the dead lever, the optical cable take-up reel, the end is laid to mounting panel and its optical cable, the dead lever is connected in the carousel and has been seted up the spout, the optical cable take-up reel is connected in the dead lever, mounting panel sliding connection is in the spout, the end is laid to the optical cable is connected in the mounting panel, can order about the carousel through the drive end and drive the dead lever and rotate, so that supply the adjustment optical cable to lay the position of end. The optical cable laying device comprises a plurality of optical cable laying ends, and can simultaneously complete the laying of a plurality of optical cables.
Description
Technical Field
The invention relates to the technical field of communication equipment, in particular to a multi-contact telescopic optical cable laying device and an optical cable laying method thereof.
Background
Fiber optic cables are manufactured to meet optical, mechanical, or environmental performance specifications and utilize one or more optical fibers disposed in a covering jacket as the transmission medium and may be used individually or in groups as telecommunication cable assemblies. The optical cable is mainly composed of optical fibers, a plastic protective sleeve and a plastic outer skin and is used for realizing a communication line for optical signal transmission. With the development of optical cable technology, the application scenarios of the optical cable technology are also more and more extensive, and therefore, the rapid installation and laying of the optical cable also become a problem needing attention at present.
For example, patent CN208994845U provides an optical cable laying device, comprising a base plate, there is the push rod motor through the bolt fastening on the bottom plate, and the output end key of push rod motor is connected with the push rod, and the top welding of push rod has the function board, the welding of top one side of function board has first curb plate, and the welding of the opposite side of function board has the second curb plate, the mounting groove has been seted up to one side of first curb plate, and when using, accessible pulling installer realizes that installer is fixed the regulation to the elasticity installation of roller curb plate, carries out the level of roller curb plate to the regulation of bearing capacity, and then can be convenient carry out the installation dismantlement of roller and roller curb plate, conveniently carry out the dismantlement of optical cable roller and change, be equipped with servo motor in one side of second curb plate simultaneously, can drive the rotation of roller curb plate and roller through servo motor, and then realize the operation is laid to the pine of optical cable, under the condition of conveniently changing the roller, guaranteed the convenience of operation simultaneously.
However, most of the existing optical cable laying devices are similar to the above patents, and only one optical cable can be installed and laid individually, but in practical applications, a plurality of optical cables often need to be used in combination, and in the rapid development of the optical cable technology, the ordinary optical cable laying device cannot meet the laying requirements of the optical cables. Therefore, there is a need for an optical cable installation device that can install multiple optical cables simultaneously.
Disclosure of Invention
In view of this, it is necessary to provide a multi-contact retractable optical cable laying apparatus and an optical cable laying method thereof, which solve the technical problem that the optical cable laying apparatus in the prior art cannot simultaneously mount a plurality of optical cables.
In order to achieve the above technical object, a technical solution of the present invention provides a multi-contact retractable optical cable installation apparatus, including:
the fixing mechanism comprises a fixing block, a rotary disc and a driving end, the rotary disc is connected to the fixing block in a rotating mode, the driving end is arranged on the fixing block, the output end of the driving end is connected to the rotary disc, and the driving end is used for driving the rotary disc to rotate;
a plurality of optical cable laying mechanism, it is a plurality of optical cable laying mechanism all connect in the carousel just is the circumference array and arranges, each optical cable laying mechanism all includes dead lever, optical cable take-up reel, mounting panel and its optical cable and lays the end, the dead lever connect in the carousel has seted up the spout, the optical cable take-up reel connect in the dead lever, mounting panel sliding connection in the spout, the optical cable lay the end connect in the mounting panel, through the drive end can order about the carousel drives the dead lever rotates for the regulation the position of end is laid to the optical cable.
Further, the outer wall of fixed block is provided with the joint piece, the draw-in groove has been seted up at the top of carousel, still includes elevating system, elevating system includes annular slider and lift end, annular slider set up in the carousel with between the dead lever, annular slider rotates the cover to be located the outer wall of fixed block and its top and bottom all are provided with the fixture block, annular slider warp the fixture block with the draw-in groove joint in the carousel, the lift end set up in the fixed block and connect to annular slider is used for ordering about annular slider goes up and down and drives the fixture block joint extremely the joint piece perhaps the draw-in groove.
Further, still include adjustment mechanism, adjustment mechanism with the dead lever one-to-one sets up, adjustment mechanism includes pivot, connecting rod and slider, the pivot is perpendicular and rotate connect in the bottom of annular slider, the one end of connecting rod connect in the pivot, the slider connect in the other end and the slip of connecting rod are inserted and are located the spout, the slider still connect in the mounting panel, work as the fixture block joint in when in the joint piece, the warp the drive end can order about the carousel drives the connecting rod rotates to supply the regulation the position of end is laid to the optical cable.
Further, the end is laid to the optical cable includes bracing piece, torsional spring, traction motor and forcing pulley, the bracing piece connect in the mounting panel, the torsional spring cover is located the bracing piece, traction motor set up in the bracing piece and be connected to the torsional spring, the forcing pulley connect in traction motor's output.
Furthermore, the lifting end comprises a hydraulic cylinder and a push rod thereof, the hydraulic cylinder is arranged on the fixed block, one end of the push rod is connected to the hydraulic cylinder, and the other end of the push rod is abutted to the bottom of the annular sliding block to push the annular sliding block to lift.
Further, the connecting rod is arc-shaped.
Further, the slider includes slip end and stiff end, the slip end slides and rotates and insert and locate the spout, the one end of slip end connect in the mounting panel, the stiff end be connected to the other end of slip end and be connected to the connecting rod.
Further, the mounting plate is fan-shaped.
An optical cable laying method comprises the multi-contact telescopic optical cable laying device and a pipeline trolley, and further comprises the following steps:
the method comprises the following steps: installing the optical cable laying device on a pipeline trolley, and placing the pipeline trolley in a pipeline to be laid with optical cables;
step two: adjusting the laying end of the optical cable to a specified position, firstly, starting the lifting end to enable the annular sliding block to be clamped in the clamping groove, starting the driving end, driving the turntable and the fixed rod to rotate simultaneously through the driving end, then starting the lifting end again, controlling the annular sliding block to be clamped in the clamping block through the lifting end, starting the driving end, driving the turntable to rotate through the driving end, and controlling the connecting rod to drive the sliding block to slide so as to control the laying end of the optical cable to move to the specified position, and then adjusting the laying diameter of the optical cable;
step three: after the optical cable is laid, starting the laying end of the optical cable, the pressure wheel can be controlled to finish the linear laying of the optical cable; or the driving end is started, the turntable is driven to rotate through the driving end, so that the connecting rod is controlled to drive the sliding block to slide, and meanwhile, the optical cable laying end is started, so that the pressure wheel can be controlled to finish the spiral laying of the optical cable;
step four: when the spiral optical cable is laid, the spiral distance of the optical cable can be adjusted by adjusting the rotating speed of the driving end.
Further, in step three, one or more of the cable laying ends can be selectively opened.
Compared with the prior art, the invention has the beneficial effects that: the optical cable laying device is provided with a plurality of optical cable laying ends, the optical cable laying ends are fixed on the turntable in a circumferential array arrangement mode, the turntable is rotatably connected to the fixed block through the driving end, the turntable can be controlled to rotate through the driving end, the position of the optical cable laying ends is adjusted, the fixed block can be mounted on the pipeline trolley when the optical cable is laid, the pipeline trolley can be used for linear movement in a pipeline, and the optical cable laying ends in the circumferential array arrangement are matched, so that the optical cables can be laid in the pipeline.
Drawings
FIG. 1 is a schematic view of a multi-contact retractable cable routing device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a fixing mechanism of a multi-contact retractable optical cable installation apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of a cable laying mechanism of the multi-contact retractable cable laying apparatus according to the present invention;
fig. 4 is a schematic view of a cable laying end of the multi-contact retractable cable laying apparatus according to the embodiment of the present invention;
FIG. 5 is a schematic view of an adjustment mechanism of the multi-contact retractable cable laying apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a slider in the multi-contact retractable cable laying apparatus according to the embodiment of the present invention.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Referring to fig. 1, the invention provides a multi-contact telescopic optical cable laying device, which comprises a fixing mechanism 1 and a plurality of optical cable laying mechanisms 2, wherein the fixing mechanism 1 is used for supporting the optical cable laying mechanisms 2 and is also used for connecting to external mobile equipment, the optical cable laying mechanisms 2 are rotatably mounted on the fixing mechanism 1 in a circumferential array arrangement mode, the positions of the optical cable laying mechanisms 2 can be adjusted through the fixing mechanism 1, and the optical cables can be laid in a pipeline by matching with the external mobile equipment. The mobile equipment generally adopts a pipeline trolley, and the sizes of the pipeline trolley and the laying device can be determined according to the pipeline of the optical cable to be laid.
Referring to fig. 2, the fixing mechanism 1 includes a fixing block 11, a rotating disc 12 and a driving end 13 thereof, the rotating disc 12 is rotatably connected to the fixing block 11, the driving end 13 is disposed on the fixing block 11 and an output end thereof is connected to the rotating disc 12 for driving the rotating disc 12 to rotate; wherein, drive end 13 adopts the motor, and the motor is installed at the top of fixed block 11, and carousel 12 is installed in the bottom of fixed block 11, and the output shaft of motor wears to establish fixed block 11 and connects to carousel 12, and the start motor can control carousel 12 and rotate.
Referring to fig. 3, the laying device includes a plurality of optical cable laying mechanisms 2, the optical cable laying mechanisms 2 are connected to the turntable 12 and are arranged in a circumferential array, each optical cable laying mechanism 2 includes a fixing rod 21, an optical cable winding roll 22, a mounting plate 23 and an optical cable laying end 24 thereof, the fixing rod 21 is connected to the turntable 12 and has a chute, the optical cable winding roll 22 is connected to the fixing rod 21, the mounting plate 23 is connected to the chute in a sliding manner, the optical cable laying end 24 is connected to the mounting plate 23, and the turntable 12 can be driven by a motor to drive the fixing rod 21 to rotate, so that the position of the optical cable laying end 24 can be adjusted. Wherein, the mounting panel 23 is fan-shaped, makes things convenient for it to remove in the pipeline, refers to fig. 4, and end 24 is laid to the optical cable includes bracing piece 241, torsional spring 242, traction motor 243 and pinch roller 244, bracing piece 241 connect in mounting panel 23, torsional spring 242 cover is located bracing piece 241, traction motor 243 set up in bracing piece 241 and connect in torsional spring 242, pinch roller 244 connect in traction motor 243's output, during initial state, torsional spring 242 is in the state of compressing tightly for traction motor 243 and pinch roller 244 are in the state of compressing tightly, and it has the optical cable that extends from optical cable take-up reel 22 to coil on the pinch roller 244, starts traction motor 243, can install the optical cable in proper order and lay to the pipeline.
The outer wall of fixed block 11 is provided with joint piece 111, draw-in groove 121 has been seted up at the top of carousel 12, and this laying device still includes elevating system 3, elevating system 3 includes annular slider 31 and lift end (not shown in the figure) thereof, annular slider 31 set up in carousel 12 with between the dead lever 21, annular slider 31 rotates the cover to be located the outer wall of fixed block 11 and its top and bottom all are provided with fixture block 311, annular slider 31 warp fixture block 311 with draw-in groove 121 joint in carousel 12, the lift end set up in fixed block 11 and connect to annular slider 31, dead lever 21 are connected to annular slider 31's outer wall, and the lift end can drive annular slider 31 and dead lever 21 go up and down and drive fixture block 311 joint extremely joint piece 111 or draw-in groove 121. Wherein, the lift end includes pneumatic cylinder and push rod, the pneumatic cylinder set up in fixed block 11, the one end of push rod is connected to pneumatic cylinder, other end butt in annular slider 31's bottom is used for promoting annular slider 31 goes up and down, and pneumatic cylinder actuating mechanism is common structure among the prior art, and the here is no longer repeated.
Referring to fig. 5, the laying device further includes an adjusting mechanism 4, the adjusting mechanism 4 and the fixing rods 21 are arranged in a one-to-one correspondence manner, the adjusting mechanism 4 includes a rotating shaft 41, a connecting rod 42 and a slider 43, the rotating shaft 41 is vertically and rotatably connected to the bottom of the annular slider 31, one end of the connecting rod 42 is connected to the rotating shaft 41, the slider 43 is connected to the other end of the connecting rod 42 and is slidably inserted into the sliding groove, the slider 43 is further connected to the mounting plate 23, when the clamping block 311 is clamped in the clamping block 111, the annular slider 31 is clamped on the fixing block 11, at this time, the start motor can only drive the rotating disc 12 and the connecting rod 42 to rotate, the fixing rod 21 is in a stationary state along with the annular slider 31, the connecting rod 42 is connected to the slider 43 and the mounting plate 23, and when the rotating disc 12 drives the connecting rod 42 to rotate, the slider 43 and the mounting plate 23 can be simultaneously driven to move, so as to adjust the position of the optical cable laying end 24 relative to the optical cable winding disc 22. Wherein, the connecting rod 42 is arc-shaped, which is convenient for the laying device to adjust the position of the laying end 24 of the optical cable in the pipeline,
referring to fig. 6, as a preferred embodiment, the sliding block 43 includes a sliding end 431 and a fixed end 432, the sliding end 431 is slidably and rotatably inserted into the sliding groove, one end of the sliding end 431 is connected to the mounting plate 23, and the fixed end 432 is connected to the other end of the sliding end 431 and to the connecting rod 42. The sliding end 431 is made of balls, so that the sliding block 43 can slide along the sliding groove to drive the mounting plate 23 to move relative to the optical cable winding roll 22, and when the hydraulic cylinder drives the annular sliding block 31 to ascend and descend, the balls can also rotate relative to the fixing rod 21 and the sliding groove to control the fixing rod 21 and the annular sliding block 31 to be fixed on the rotary table 12 or the fixing block 11.
The optical cable laying method comprises a pipeline trolley and the multi-contact telescopic optical cable laying device, and further comprises the following operation steps:
the method comprises the following steps: the optical cable laying device is arranged on a pipeline trolley, the pipeline trolley is placed in a pipeline of a cable to be laid, wherein a turntable 12 is transversely placed in the pipeline and is coaxial with the pipeline, and a plurality of optical cable laying ends 24 face a plurality of installation positions in the pipeline;
step two: adjusting the optical cable laying end 24 to a specified position, firstly, starting a hydraulic cylinder to enable a clamping block 311 on the annular sliding block 31 to be clamped in a clamping groove 121, starting a motor 13, controlling the rotation of the rotary table 12 and the fixed rod 21 through the motor 13, then, starting the hydraulic cylinder again, controlling the clamping block 311 on the annular sliding block 31 to be clamped in a clamping block 111 through the hydraulic cylinder, at the moment, fixing the annular sliding block 31 and the fixed rod 21 on the fixed block 11, starting the motor again, driving the rotary table 12 to rotate through the motor, and controlling the connecting rod 42 at the bottom of the rotary table 12 to drive the sliding block 43 to slide so as to control the optical cable laying end 24 to move to the specified position, and at the moment, adjusting the laying diameter of the optical cable;
step three: after the optical cable is laid, the traction motor 243 is started, so that the pressure wheel 244 can be controlled to cooperate with the pipeline trolley to complete the linear laying of the optical cable; or starting the motor 13, driving the turntable 12 to rotate through the motor 13, thereby controlling the connecting rod 42 to drive the sliding block 43 to slide, and simultaneously starting the traction motor 243, thereby controlling the pressure wheel 244 to cooperate with the pipeline trolley to finish the spiral laying of the optical cable;
step four: when carrying out the laying of screw-tupe optical cable, through the slew velocity of adjusting motor 13, the spiral interval when can adjusting the optical cable and lay can reduce the use of optical cable to the region that the fault rate is lower to welding seam etc. take denser arrangement to the region that easily breaks down from the statistics law.
In step three, one or more of the traction motors 242 in the cable laying ends 24 can be selectively turned on, so that various pipeline cable laying schemes such as a single straight line type, a multi-straight line type, a single spiral type, a multi-spiral type and the like can be realized. The traction motor 242 is controlled by an electromagnetic switch, so as to control the plurality of optical cable laying ends to work respectively.
The working principle of the embodiment provided by the invention is as follows: the optical cable laying device is provided with a plurality of optical cable laying ends, the positions of the optical cable laying ends can be adjusted through the motor and the hydraulic cylinder, so that the working diameters of the optical cable laying ends are adjusted, the optical cable laying device is suitable for different pipelines, the optical cable laying ends can be independently started according to requirements, and various optical cable laying schemes can be realized in the pipelines by controlling the rotating speed of the motor and matching with the pipeline trolley.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. A telescopic optical cable laying device of multicontact, characterized by comprising:
the fixing mechanism comprises a fixing block, a rotary disc and a driving end, the rotary disc is connected to the fixing block in a rotating mode, the driving end is arranged on the fixing block, the output end of the driving end is connected to the rotary disc, and the driving end is used for driving the rotary disc to rotate;
a plurality of optical cable laying mechanism, it is a plurality of optical cable laying mechanism all connect in the carousel just is the circumference array and arranges, each optical cable laying mechanism all includes dead lever, optical cable take-up reel, mounting panel and its optical cable and lays the end, the dead lever connect in the carousel has seted up the spout, the optical cable take-up reel connect in the dead lever, mounting panel sliding connection in the spout, the optical cable lay the end connect in the mounting panel, through the drive end can order about the carousel drives the dead lever rotates for the regulation the position of end is laid to the optical cable.
2. The multi-contact retractable cable routing device of claim 1, wherein: the outer wall of fixed block is provided with the joint piece, the draw-in groove has been seted up at the top of carousel, still includes elevating system, elevating system includes annular slider and lift end, annular slider set up in the carousel with between the dead lever, annular slider rotates the cover and locates the outer wall of fixed block and its top and bottom all are provided with the fixture block, annular slider warp the fixture block with the draw-in groove joint in the carousel, the lift end set up in the fixed block and connect to annular slider is used for ordering about annular slider goes up and down and drives the fixture block joint extremely the joint piece perhaps the draw-in groove.
3. The multi-contact telescopic cable laying apparatus according to claim 2, wherein: still include adjustment mechanism, adjustment mechanism with the dead lever one-to-one sets up, adjustment mechanism includes pivot, connecting rod and slider, the pivot is perpendicular and rotate connect in the bottom of annular slider, the one end of connecting rod connect in the pivot, the slider connect in the other end and the sliding insertion of connecting rod are located the spout, the slider still connect in the mounting panel works as the fixture block joint in when in the joint piece, the warp the drive end can order about the carousel drives the connecting rod rotates, in order to supply the regulation the position of end is laid to the optical cable.
4. The multi-contact retractable cable routing device of claim 3, wherein: the optical cable is laid the end and is included bracing piece, torsional spring, traction motor and pinch roller, the bracing piece connect in the mounting panel, the torsional spring cover is located the bracing piece, traction motor set up in the bracing piece and be connected in the torsional spring, the pinch roller connect in traction motor's output.
5. The multi-contact retractable cable routing device of claim 4, wherein: the lifting end comprises a hydraulic cylinder and a push rod thereof, the hydraulic cylinder is arranged on the fixed block, one end of the push rod is connected to the hydraulic cylinder, and the other end of the push rod is abutted to the bottom of the annular sliding block and used for pushing the annular sliding block to lift.
6. The multi-contact telescopic cable laying apparatus according to claim 5, wherein: the connecting rod is arc-shaped.
7. The multi-contact telescopic cable laying apparatus according to claim 6, wherein: the slider includes slip end and stiff end, the slip end slides and rotates and insert and locate the spout, the one end of slip end connect in the mounting panel, the stiff end is connected to the other end of slip end and be connected to the connecting rod.
8. The multi-contact telescopic cable routing device of claim 7, wherein: the mounting plate is fan-shaped.
9. An optical cable installation method comprising the multi-contact telescopic optical cable installation device and the conduit trolley according to claim 8, characterized by comprising the following steps:
the method comprises the following steps: mounting the optical cable laying device on a pipeline trolley, and placing the pipeline trolley in a pipeline to be laid with an optical cable;
step two: adjusting the laying end of the optical cable to a specified position, firstly, starting the lifting end to clamp the annular sliding block in the clamping groove, starting the driving end, driving the turntable and the fixed rod to rotate simultaneously through the driving end, then starting the lifting end again, controlling the annular sliding block to be clamped in the clamping block through the lifting end, starting the driving end, driving the turntable to rotate through the driving end, and controlling the connecting rod to drive the sliding block to slide so as to control the laying end of the optical cable to move to the specified position, and then adjusting the laying diameter of the optical cable;
step three: after the optical cable is laid, starting the laying end of the optical cable, the pressure wheel can be controlled to finish the linear laying of the optical cable; or the driving end is started, the turntable is driven to rotate through the driving end, so that the connecting rod is controlled to drive the sliding block to slide, and meanwhile, the optical cable laying end is started, so that the pressure wheel can be controlled to finish spiral laying of the optical cable;
step four: when the spiral optical cable is laid, the spiral distance of the optical cable can be adjusted by adjusting the rotating speed of the driving end.
10. An optical cable laying method according to claim 9, wherein: in step three, the optical cable laying end can be selectively opened one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111437373.1A CN114114579B (en) | 2021-11-29 | 2021-11-29 | Multi-contact telescopic optical cable laying device and optical cable laying method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111437373.1A CN114114579B (en) | 2021-11-29 | 2021-11-29 | Multi-contact telescopic optical cable laying device and optical cable laying method thereof |
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| CN114114579A CN114114579A (en) | 2022-03-01 |
| CN114114579B true CN114114579B (en) | 2022-11-11 |
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| CN115128755A (en) * | 2022-07-25 | 2022-09-30 | 上海天华云应用技术有限公司 | Traction mechanism is used in optical cable production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574235B (en) * | 2018-06-25 | 2024-01-26 | 南京市龙马通信工程有限公司 | Communication pipeline traction wire device |
| CN208994845U (en) * | 2018-10-18 | 2019-06-18 | 同力恒业科技(天津)有限公司 | A kind of optical cable laying device |
| CN110165612B (en) * | 2019-06-18 | 2020-08-18 | 良信电器股份有限公司 | Surrounding type bunching device for laying multiple cables |
| CN213876143U (en) * | 2020-08-27 | 2021-08-03 | 陈有强 | Prevent optical cable laying device that pulls |
| CN112162374A (en) * | 2020-10-16 | 2021-01-01 | 金勇威 | Pipeline optical cable laying equipment |
| CN112213835A (en) * | 2020-11-27 | 2021-01-12 | 刘化坤 | Auxiliary assembly that optical cable was laid |
| CN112897205A (en) * | 2021-01-07 | 2021-06-04 | 李松涛 | Optical cable is laid and is used pay-off |
| CN113336006B (en) * | 2021-04-28 | 2023-03-03 | 国网山东省电力公司济南市济阳区供电公司 | Take-up device for electric power construction |
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