CN111505783A - Overhead optical cable laying method - Google Patents
Overhead optical cable laying method Download PDFInfo
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- CN111505783A CN111505783A CN202010442811.2A CN202010442811A CN111505783A CN 111505783 A CN111505783 A CN 111505783A CN 202010442811 A CN202010442811 A CN 202010442811A CN 111505783 A CN111505783 A CN 111505783A
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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
- G02B6/48—Overhead installation
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Abstract
The invention relates to the technical field of optical cable laying, in particular to an overhead optical cable laying method, which comprises the following steps: s1, moving an optical cable laying tool to a first optical cable pole, and arranging a first pulley and a second pulley on the first optical cable pole and a second optical cable correspondingly; s2, using an unmanned aerial vehicle to pull the free end of the optical cable to sequentially pass through a first optical cable line rod and a second optical cable line rod, and placing the optical cable on a first pulley and a second pulley at corresponding positions; s3, fixing the optical cable on the first optical cable pole and the second optical cable pole at corresponding positions, and detaching the first pulley and the second pulley at corresponding positions. According to the invention, an optical cable laying tool is additionally arranged, so that the optical cable is conveniently lifted and taken down from the pay-off reel; simultaneously with the help of unmanned aerial vehicle among the prior art along first pulley and second pulley to the optical cable pull, avoid the destruction to trees, can resources are saved can also improve laying efficiency of aerial fiber cable simultaneously.
Description
Technical Field
The invention relates to the technical field of optical cable laying, in particular to an overhead optical cable laying method.
Background
An optical cable is a communication line, which is composed of a cable core, a reinforcing steel wire, fillers, a coating sheath and the like. As network components move into thousands of households, the laying work of optical cables is increasing. At present, optical cables are wound on a pay-off reel for storage and transportation, and when the optical cables are laid, constructors need to manually take the optical cables off the pay-off reel and pull the taken-off optical cables to a laying position. When taking off the optical cable from the drawing drum, the drawing drum is required to be placed on the ground, and obviously, the mode of taking off the optical cable is time-consuming. Application number 201120489655.1 discloses an optical cable laying device, and it sets up the drawing drum rotatably at the top of support column, like this with the optical cable take off the time only need rotate the drawing drum can, can reduce constructor's intensity of labour, convenient and practical. However, the pay-off reel and the optical cable have certain weight under normal conditions, and the pay-off reel with the optical cable is lifted to a certain height with more labor.
In addition, when the optical cable is laid in an area where trees are planted, the trees at the laying position of the optical cable are generally needed to be cut off, resources and manpower are wasted, the laying cost is high, and the laying efficiency is low.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide an overhead optical cable laying method, which aims to solve the problems that when an optical cable is laid in an area where trees are planted, the trees at the optical cable laying position are generally required to be cut off, resources and manpower are wasted, the laying cost is high, and the laying efficiency is low.
In order to achieve the purpose, the invention provides the following technical scheme:
an overhead cable laying method, characterized in that the method comprises the following steps:
s1, moving an optical cable laying tool to a first optical cable pole, and arranging a first pulley and a second pulley on the first optical cable pole and a second optical cable correspondingly;
s2, using an unmanned aerial vehicle to pull the free end of the optical cable to sequentially pass through a first optical cable line rod and a second optical cable line rod, and placing the optical cable on a first pulley and a second pulley at corresponding positions;
s3, fixing the optical cable on the first optical cable pole and the second optical cable pole at corresponding positions, and detaching the first pulley and the second pulley at corresponding positions.
Preferably, the cable laying tool comprises: unwrapping wire base, slip drive assembly, drawing drum and lifting means, wherein: the paying-off base comprises a base plate, a supporting plate, a fixed disc and a paying-off driving motor, wherein the base plate is horizontally arranged, and guide grooves are concavely formed in two sides of the base plate; the two sides of the base plate are respectively provided with one supporting plate in a hanging manner, guide rods which correspond to the guide grooves and are in sliding fit with the guide grooves are arranged below 2 supporting plates, limiting holes are formed above 2 supporting plates, and bearings are embedded in the limiting holes; the fixed disks are respectively arranged on the opposite side surfaces of the 2 supporting plates, and the fixed disks are integrally formed into a rotating shaft connected with the bearing in an interference fit mode; the paying-off driving motor is used for fixing one of the supporting plate plates, an output shaft of the paying-off driving motor is connected to a rotating shaft of the fixed plate at the corresponding position through a coupler, and the paying-off driving motor drives the fixed plate connected with the paying-off driving motor to rotate; the sliding driving assembly is arranged on the base plate and drives the 2 supporting plates to be synchronously far away from the base plate or be synchronously close to the base plate; the pay-off reel is positioned above the base plate; the lifting assembly comprises an electric push rod and a lifting base plate, and the bottom of the electric push rod is fixed in the middle of the base plate; the lifting base plate is fixedly connected to the top of the electric push rod; the lifting assembly can adjust the height of the pay-off reel.
Preferably, the sliding driving assembly comprises a sliding table, a transmission screw rod, a sliding seat and a sliding driving motor, wherein 2 sliding tables are symmetrically fixed on the base plate, and sliding grooves are concavely arranged on the upper surface of each sliding table; the transmission screw rods are arranged in each sliding groove, two ends of each transmission screw rod are respectively and rotatably connected with the end walls of the corresponding sliding grooves, and one opposite ends of the 2 transmission screw rods respectively extend out of the sliding tables at the corresponding positions; the sliding seat is provided with one sliding groove in each sliding groove and is in sliding fit with the sliding groove at the corresponding position, the sliding seat is penetrated by the transmission screw rod at the corresponding position and is in threaded fit with the transmission screw rod, the top of the sliding seat is integrally formed with connecting plates, and 2 connecting plates are fixedly connected with the supporting plates at the corresponding positions; the sliding driving motor is fixed on the base plate and located between the 2 sliding tables, the sliding driving motor is a two-way motor, and 2 output shafts of the sliding driving motor are connected with the end parts of the transmission screw rods at the corresponding positions through the couplers respectively.
Preferably, the opposite surfaces of the 2 fixed disks are integrally formed with a first fixed rod and a second fixed rod, the first fixed rod is arranged at the center of the fixed disk, and the second fixed rods are uniformly arranged along the circumferential direction of the first fixed rod; and a first fixing groove and a second fixing groove which correspond to the first fixing rod and the second fixing rod are arranged on the pay-off reel.
Preferably, the lower surface of the lifting base plate is provided with a plurality of limiting rods in a vertical mode, the upper surface of the base plate is provided with a limiting cylinder corresponding to the limiting rods in a vertical mode, and the limiting rods are inserted into the limiting cylinders and are in sliding fit with the limiting cylinders.
Preferably, 2 first limiting strips are arranged on the upper surface of the lifting substrate at intervals, and the distance between the 2 first limiting strips corresponds to the pay-off reel; the front end of base plate is equipped with the guide board, be equipped with on the guide board with the spacing strip of second that first spacing strip position corresponds.
Preferably, universal wheels are arranged at the bottoms of the base plate and the guide plate.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, an optical cable laying tool is additionally arranged, so that the optical cable is conveniently lifted and taken down from the pay-off reel; simultaneously with the help of unmanned aerial vehicle among the prior art along first pulley and second pulley to the optical cable pull, avoid the destruction to trees, can resources are saved can also improve laying efficiency of aerial fiber cable simultaneously.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the construction of the cable laying tool of the present invention
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is an exploded view of FIG. 2;
FIG. 5 is an exploded view of the slide drive assembly of FIG. 4;
description of the main reference numerals:
100-paying off base, 101-base plate, 1011-guide groove, 1012-limit cylinder, 1013-guide plate, 1014-second limit strip, 1015-universal wheel, 102-support plate, 1021-guide rod, 1022-limit hole, 1023-bearing, 103-fixed disk, 1031-rotating shaft, 1032-first fixed rod, 1033-second fixed rod and 104-paying off driving motor;
200-a sliding drive assembly, 201-a sliding table, 2011-a sliding groove, 202-a transmission screw rod, 203-a sliding seat, 2031-a connecting plate and 204-a sliding drive motor;
300-a pay-off reel, 301-a first fixing groove and 302-a second fixing groove;
400-lifting component, 401-electric push rod, 402-lifting base plate, 4021-first limit strip and 4022-limit rod.
500-unmanned aerial vehicle;
600-a first cable rod, 601-a first pulley;
700-second cable pole, 701-second pulley;
800-optical cable.
Detailed Description
The technical solutions of the present invention will be described in detail and fully with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case to those skilled in the art.
Referring to fig. 1-5, an overhead cable laying method includes the following steps:
s1, moving an optical cable laying tool to a first optical cable rod 600, and arranging a first pulley 601 and a second pulley 602 on the first optical cable rod 600 and a second optical cable 700 correspondingly;
s2, the unmanned aerial vehicle 500 is utilized to draw the free end of the optical cable 800 to sequentially pass through the first optical cable line rod 600 and the second optical cable line rod 700, and the optical cable 800 is placed on the first pulley 601 and the second pulley 602 at the corresponding positions;
and S3, fixing the optical cable 800 on the first optical cable pole 600 and the second optical cable pole 700 at corresponding positions, and detaching the first sliding wheel 601 and the second sliding wheel 602 at corresponding positions.
In this embodiment, the cable laying tool comprises: unwrapping wire base 100, slip drive assembly 200, drawing drum 300 and lifting component 400, wherein:
the paying-off base 100 comprises a base plate 101, a supporting plate 102, a fixed disc 103 and a paying-off driving motor 104, wherein the base plate 101 is horizontally arranged, and guide grooves 1011 are concavely arranged on two sides of the base plate 101; the two sides of the base plate 101 of the support plates 102 are respectively provided with one vertical support plate, the lower parts of 2 support plates 102 are respectively provided with a guide rod 1021 corresponding to the guide groove 1011 and in sliding fit, the upper parts of 2 support plates 102 are respectively provided with a limit hole 1022, and a bearing 1023 is embedded in the limit hole 1022; the fixed disk 103 is respectively arranged on the opposite side surfaces of the 2 supporting plates 102, and the fixed disk 103 is integrally formed with a rotating shaft 1031 connected with the bearing 1023 in an interference fit manner; the paying-off driving motor 104 is fixed on one of the supporting plates 102, an output shaft of the paying-off driving motor 104 is connected to a rotating shaft 1031 of the fixed disk 103 at a corresponding position through a coupling (not shown in the figure), and the paying-off driving motor 104 drives the fixed disk 103 connected with the paying-off driving motor 104 to rotate; in this embodiment, the opposing faces of the 2 fixed disks 103 are integrally formed with a first fixed link 1032 and a second fixed link 1033, the first fixed link 1032 is disposed at the center of the fixed disk 103, and the second fixed links 1033 are uniformly disposed in a plurality along the circumferential direction of the first fixed link 1032;
the sliding driving assembly 200 is arranged on the base plate 101, and the sliding driving assembly 200 drives the 2 supporting plates 102 to synchronously move away from the base plate 101 or synchronously move close to the base plate 101; in the present embodiment, the specific structure of the sliding driving assembly 200 is as follows: the sliding driving assembly 200 comprises sliding tables 201, a transmission screw rod 202, a sliding seat 203 and a sliding driving motor 204, wherein 2 sliding tables 201 are symmetrically fixed on the base plate 101, and sliding grooves 2011 are concavely arranged on the upper surfaces of the sliding tables 201; one transmission screw 202 is arranged in each sliding groove 2011, two ends of each transmission screw 202 are respectively and rotatably connected with the end wall of the corresponding position sliding groove 2011, and the opposite ends of the 2 transmission screws 202 respectively extend out of the sliding tables 201 at the corresponding positions; the slide base 203 is provided with one slide groove 2011 in each slide groove 2011 and is in sliding fit with the slide groove 2011 at the corresponding position, the slide base 203 is penetrated by the transmission screw rod 202 at the corresponding position and is in threaded fit with the transmission screw rod 202, the top of the slide base 203 is integrally formed with a connecting plate 2031, and 2 connecting plates 2031 are fixedly connected to the support plate 102 at the corresponding position; the sliding driving motor 204 is fixed on the base plate 101 and located between the 2 sliding tables 201, the sliding driving motor 204 is a bidirectional motor, and 2 output shafts of the sliding driving motor are respectively connected with the end parts of the transmission screw rods 202 at corresponding positions through couplings.
The pay-off reel 300 is positioned above the base plate 101; a first fixing groove 301 and a second fixing groove 302 corresponding to the first fixing rod 1032 and the second fixing rod 1033 are arranged on the pay-off reel 300;
the lifting assembly 400 comprises an electric push rod 401 and a lifting base plate 402, wherein the bottom of the electric push rod 401 is fixed in the middle of the base plate 101; the lifting base plate 402 is fixedly connected to the top of the electric push rod 401; the lifting assembly 400 may adjust the height of the payout reel 300. In this embodiment, 2 first limiting strips 4021 are arranged on the upper surface of the lifting substrate 402 at intervals, and the distance between the 2 first limiting strips 4021 corresponds to the pay-off reel 300; a plurality of limiting rods 4022 are vertically arranged on the lower surface of the lifting substrate 402;
in addition, in this embodiment, a limiting cylinder 1012 corresponding to the limiting rod 4022 is vertically disposed on the surface of the base plate upper 101, and the limiting rod 4022 is inserted into the limiting cylinder 1012 and is in sliding fit therewith. A guide plate 1013 is arranged at the front end of the base plate 101, and a second limit bar 1014 corresponding to the first limit bar 4021 is arranged on the guide plate 1013; universal wheels 1015 are provided at the bottom of base plate 101 and guide plate 1013.
In this embodiment, the pay-off driving motor 104, the sliding driving motor 204 and the electric push rod 401 are all electrically connected to an external power source, and both the pay-off driving motor 104 and the sliding driving motor 204 can rotate in forward and reverse directions. In this embodiment, the 2 components may be rotatably connected by embedding a bearing in one of the corresponding components and connecting the other component with the bearing in an interference fit manner.
When the lifting device is used, the height of the lifting base plate 402 is adjusted to make one end of the lifting base plate close to the guide plate 1013 flush with the high surface of the guide plate 1013. The way of adjusting the height of the lift substrate 402 is: the switch for controlling the electric push rod 401 is turned on to enable the electric push rod 401 to work, the electric push rod 401 can contract during working, the electric push rod 401 can drive the lifting substrate 402 connected with the electric push rod 401 to move up and down, meanwhile, the limiting rod 4022 slides up and down in the limiting cylinder 1012, the limiting cylinder 1012 can limit the track of the lifting substrate 402 moving up and down through limiting the limiting rod 4022, and therefore deviation and stability of the height adjusting device in the movement process of the lifting substrate 402 are prevented.
Then, the sliding driving assembly 200 is used to synchronously move the 2 supporting plates 102 away from the base plate 101, specifically: turning on a switch for controlling the sliding drive motor 204 to work, driving the transmission screw rod 202 connected with the sliding drive motor 204 to rotate when the sliding drive motor 204 rotates forwards, driving the sliding seat 203 connected with the transmission screw rod 202 to rotate and move away from the sliding drive motor 204, driving the connecting plate 2031 to move together when the sliding seat 203 moves, generating thrust on the supporting plates 102 by the connecting plate 2031, enabling 2 supporting plates 102 to be away from the base plate 101 synchronously, and enabling the guide rod 1021 to slide along the guide groove 1011; the guide groove 1011 and the guide rod 1021 are arranged to limit the movement track of the support plate 102, so that the deviation in the movement process is prevented, and the movement stability is improved.
Placing the pay-off reel 300 with the optical cable at the lower end of the guide plate 1013, adjusting the position of the pay-off reel 300, and enabling 2 second limiting strips 1014 to be located between the pay-off reels 300, so that the second limiting strips 1014 are respectively attached to the pay-off reels 300 corresponding to the corresponding position pairs, and then pushing the pay-off reel 300 to enable the pay-off reel 300 to roll along the guide plate 1013 and advance to the lifting substrate 402;
adjusting the pay-off reel 300 to a position corresponding to the fixed reel 103 using the lifting assembly 400; the principle is the same as that described above. The 2 support plates 102 are brought into synchronous proximity to the base plate 101 by means of a sliding drive assembly 200, in the same principle as described above. In the process of synchronously approaching the 2 support plates 102 to the base plate 101, the positions of the first fixing bar 1032, the second fixing bar 1033, the first fixing groove 301 and the second fixing groove 302 are adjusted, and finally the first fixing bar 1032 is inserted into the first fixing groove 301 and the second fixing bar 1033 is inserted into the second fixing groove 302. This completes the fixing of fixed disk 103 to reel 300. The raised substrate 402 is then disengaged from payout reel 300 by adjusting the height of the raised substrate 402. When the optical cable needs to be taken out, the switch for controlling the pay-off driving motor 104 is turned on to enable the pay-off driving motor 104 to work, and when the pay-off driving motor 104 rotates forwards, the fixed disc 103 drives the pay-off disc 300 to rotate forwards, so that the optical cable 800 can be conveniently taken down from the pay-off disc 300. When the optical cable 800 is taken off from the pay-off reel 300, the unmanned aerial vehicle 500 is used for towing the optical cable.
From the above, in the present embodiment, by providing the sliding driving assembly 200 and the lifting assembly 400, the pay-off reel 300 with the optical cable can be easily lifted to a certain height, and meanwhile, the optical cable 800 can be conveniently taken down from the pay-off reel 300. With the help of unmanned aerial vehicle among the prior art again along first pulley 601 and second pulley 602 to pull optical cable 800, avoid the destruction to trees, can resources are saved can also improve aerial optical cable's the efficiency of laying simultaneously.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (7)
1. An overhead cable laying method, characterized in that the method comprises the following steps:
s1, moving an optical cable laying tool to a first optical cable pole, and arranging a first pulley and a second pulley on the first optical cable pole and a second optical cable correspondingly;
s2, using an unmanned aerial vehicle to pull the free end of the optical cable to sequentially pass through a first optical cable line rod and a second optical cable line rod, and placing the optical cable on a first pulley and a second pulley at corresponding positions;
s3, fixing the optical cable on the first optical cable pole and the second optical cable pole at corresponding positions, and detaching the first pulley and the second pulley at corresponding positions.
2. The aerial fiber optic cable laying method of claim 1, wherein the fiber optic cable laying tool comprises: unwrapping wire base, slip drive assembly, drawing drum and lifting means, wherein:
the paying-off base comprises a base plate, a supporting plate, a fixed disc and a paying-off driving motor, wherein the base plate is horizontally arranged, and guide grooves are concavely formed in two sides of the base plate; the two sides of the base plate are respectively provided with one supporting plate in a hanging manner, guide rods which correspond to the guide grooves and are in sliding fit with the guide grooves are arranged below 2 supporting plates, limiting holes are formed above 2 supporting plates, and bearings are embedded in the limiting holes; the fixed disks are respectively arranged on the opposite side surfaces of the 2 supporting plates, and the fixed disks are integrally formed into a rotating shaft connected with the bearing in an interference fit mode; the paying-off driving motor is used for fixing one of the supporting plate plates, an output shaft of the paying-off driving motor is connected to a rotating shaft of the fixed plate at the corresponding position through a coupler, and the paying-off driving motor drives the fixed plate connected with the paying-off driving motor to rotate;
the sliding driving assembly is arranged on the base plate and drives the 2 supporting plates to be synchronously far away from the base plate or be synchronously close to the base plate;
the pay-off reel is positioned above the base plate;
the lifting assembly comprises an electric push rod and a lifting base plate, and the bottom of the electric push rod is fixed in the middle of the base plate; the lifting base plate is fixedly connected to the top of the electric push rod; the lifting assembly can adjust the height of the pay-off reel.
3. The overhead optical cable laying method according to claim 2, wherein the slide driving assembly includes slide tables, a transmission screw rod, a slide base and a slide driving motor, wherein 2 slide tables are symmetrically fixed on the base plate, and slide grooves are concavely formed on the upper surfaces of the slide tables; the transmission screw rods are arranged in each sliding groove, two ends of each transmission screw rod are respectively and rotatably connected with the end walls of the corresponding sliding grooves, and one opposite ends of the 2 transmission screw rods respectively extend out of the sliding tables at the corresponding positions; the sliding seat is provided with one sliding groove in each sliding groove and is in sliding fit with the sliding groove at the corresponding position, the sliding seat is penetrated by the transmission screw rod at the corresponding position and is in threaded fit with the transmission screw rod, the top of the sliding seat is integrally formed with connecting plates, and 2 connecting plates are fixedly connected with the supporting plates at the corresponding positions; the sliding driving motor is fixed on the base plate and located between the 2 sliding tables, the sliding driving motor is a two-way motor, and 2 output shafts of the sliding driving motor are connected with the end parts of the transmission screw rods at the corresponding positions through the couplers respectively.
4. The aerial optical cable laying method according to claim 2, wherein a first fixing bar and a second fixing bar are integrally formed on opposite faces of 2 fixed trays, the first fixing bar is arranged at a central position of the fixed trays, and the second fixing bars are uniformly arranged in plurality along a circumferential direction of the first fixing bar; and a first fixing groove and a second fixing groove which correspond to the first fixing rod and the second fixing rod are arranged on the pay-off reel.
5. The aerial optical cable laying method according to claim 2, wherein a plurality of limiting rods are vertically arranged on the lower surface of the lifting base plate, limiting cylinders corresponding to the limiting rods are vertically arranged on the upper surface of the base plate, and the limiting rods are inserted into the limiting cylinders and are in sliding fit with the limiting cylinders.
6. The laying method of the aerial optical cable according to claim 2, wherein 2 first limiting strips are arranged on the upper surface of the lifting substrate at intervals, and the interval of the 2 first limiting strips corresponds to the pay-off reel; the front end of base plate is equipped with the guide board, be equipped with on the guide board with the spacing strip of second that first spacing strip position corresponds.
7. The aerial optical cable laying method according to claim 6, wherein the base plate and the bottom of the guide plate are provided with universal wheels.
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| CN202010442811.2A CN111505783B (en) | 2020-05-22 | 2020-05-22 | Overhead optical cable laying method |
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|---|---|---|---|
| CN202010442811.2A CN111505783B (en) | 2020-05-22 | 2020-05-22 | Overhead optical cable laying method |
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| CN111505783B CN111505783B (en) | 2022-07-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111983760A (en) * | 2020-08-26 | 2020-11-24 | 北京无线电计量测试研究所 | Portable optical cable automatic winding and unwinding system and method |
| CN114236729A (en) * | 2021-12-21 | 2022-03-25 | 广东兴宝建设有限公司 | Automatic optical cable laying device for communication engineering |
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| CN109904792A (en) * | 2019-03-22 | 2019-06-18 | 国网山东省电力公司平原县供电公司 | A kind of Novel control paying out drum and its application method |
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| CN111983760A (en) * | 2020-08-26 | 2020-11-24 | 北京无线电计量测试研究所 | Portable optical cable automatic winding and unwinding system and method |
| CN111983760B (en) * | 2020-08-26 | 2022-11-22 | 北京无线电计量测试研究所 | Portable optical cable automatic winding and unwinding method |
| CN114236729A (en) * | 2021-12-21 | 2022-03-25 | 广东兴宝建设有限公司 | Automatic optical cable laying device for communication engineering |
| CN114236729B (en) * | 2021-12-21 | 2024-01-16 | 广东兴宝建设有限公司 | Automatic optical cable laying device for communication engineering |
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