CN113809686B - Wire foreign matter removing device for power transmission tower in dangerous terrain - Google Patents
Wire foreign matter removing device for power transmission tower in dangerous terrain Download PDFInfo
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- CN113809686B CN113809686B CN202111303974.3A CN202111303974A CN113809686B CN 113809686 B CN113809686 B CN 113809686B CN 202111303974 A CN202111303974 A CN 202111303974A CN 113809686 B CN113809686 B CN 113809686B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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Abstract
A wire foreign matter removing device for a power transmission tower in a dangerous terrain can position the foreign matter on a power transmission line through a detection mechanism, and a four-point driving mechanism is controlled to drive a hot melt remover to reach the position of the foreign matter, finally the foreign matter is removed through the hot melt remover, so that the automatic removal operation of the foreign matter on the power transmission line is realized, the whole process does not need to be manually participated, the labor capacity of operators is greatly reduced, and the safety of the operators is ensured.
Description
Technical Field
The invention relates to the technical field of foreign matter treatment of power transmission lines, in particular to a wire foreign matter removing device for a power transmission tower in a dangerous terrain.
Background
The known high-voltage power transmission is a common means for long-distance power transmission in a power grid, and because of the diversified local terrains, the number of power transmission towers erected on dangerous terrains such as high mountain, low valley and the like is very large, in addition, because the environmental awareness of people is still poor, garbage is always discarded at will in the field, so that garbage such as plastic bags, rope-shaped garbage and the like is blown to high altitude by strong wind, and if the garbage is wound on a high-voltage power transmission line, single-phase grounding and inter-phase short-circuit accidents are frequently caused, and the safe operation of the power grid is seriously affected; the traditional method for treating the garbage on the power transmission line is to make an operator work at high altitude by climbing a pole tower, and then operate a cleaning tool to separate foreign matters from the power transmission line, but because the power transmission tower erected on a dangerous terrain is difficult to climb, the operator has a certain danger in cleaning operation;
chinese patent (CN 201711019113.6) discloses a foreign matter removing device for a power transmission line based on a hot melting technology, which can drive a gear to rotate through a synchronous toothed belt, so as to drive a roller to walk on the power transmission line; the wire-shaped resistance wire is adopted to fuse foreign matters wound on the power transmission line, so that the device has the advantages of quick heating, small deformation, repeated use, low cost, no influence of wind direction, no worry about high-temperature damage of the flame to the wires and no ignition of ground inflammables; auxiliary foreign matter treatment by using a duct type fan, and instantly blowing away residues on the lead and the lightning conductor; the remote operation can be realized by being arranged on an unmanned plane; however, since a plurality of parallel power transmission lines are generally arranged between two adjacent power transmission towers, and the device can only clear one of the power transmission lines, a foreign matter clearing device is required to be arranged on each power transmission line, so that the foreign matter clearing cost is high;
accordingly, in view of the above, there is a need in the market for a device that can reduce the amount of labor of operators and remove foreign matters from a plurality of power transmission lines.
Disclosure of Invention
In order to overcome the defects in the background technology, the invention discloses a wire foreign matter removing device for a power transmission tower in a dangerous terrain.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the utility model provides a be used in electric wire foreign matter clearing device of dangerous topography transmission tower, contains installation base, four-point actuating mechanism and hot melt cleaner, the bottom surface both ends of installation base correspond fixed connection with the top of a transmission tower respectively, and the installation base is established to rectangular frame structure, and the top of installation base is equipped with four-point actuating mechanism that is used for driving the removal of hot melt cleaner; the four-point driving mechanism is provided with four hoisting devices which are respectively arranged on four sides of the installation base, two hoisting devices positioned between the two power transmission towers are in sliding connection with the installation base, steel wire ropes of the four hoisting devices are correspondingly connected with the hot melt cleaner, and the hot melt cleaner is correspondingly positioned in the middle of the installation base; the bottom surface of installation base is equipped with can enough detect the foreign matter on the electric wire, can control the detection mechanism that four-point actuating mechanism drove the work of hot melt cleaner again.
Preferably, the hot melt cleaner comprises a shell, an electric push rod, a bottom plate, a shear-shaped stabilizing frame, a wire clamping mechanism and a hot melt cutter; the four outer wall surfaces at the top of the shell are respectively connected with the steel wire ropes of the four hoisting mechanisms in a one-to-one correspondence manner, an electric push rod is arranged in the shell, the telescopic end of the electric push rod penetrates through the bottom surface of the shell and then is correspondingly and fixedly connected with the bottom plate, and a shear-shaped stabilizing frame is arranged between the bottom plate and the bottom surface of the shell; the bottom plate is provided with a wire clamping mechanism for clamping wires and a hot melt cutting mechanism for cutting foreign matters.
Preferably, the two wire clamping mechanisms are arranged in two groups, the two wire clamping mechanisms are respectively arranged at one end of the base, the two wire clamping mechanisms comprise two clamping plates and two bidirectional telescopic cylinders, the two clamping plates are respectively hinged with one side face of the base in the length direction, the two bidirectional telescopic cylinders are arranged on the top face of the base, and the two telescopic ends of the two bidirectional telescopic cylinders are respectively connected with the top of one clamping plate in a corresponding mode.
Preferably, the hot melt cutting mechanism is located between the two wire clamping mechanisms, and the hot melt cutting mechanism comprises a rotating motor, a rotating shaft and a hot melt cutter, wherein the rotating motor is installed on the top surface of the bottom plate, the driving end of the rotating motor is correspondingly connected with the head end of the rotating shaft, the rotating shaft is vertically arranged, and the tail end of the rotating shaft is vertically provided with the hot melt cutter.
Preferably, the hot melt cutters are arranged into a plurality of pieces, and the plurality of pieces of hot melt cutters are correspondingly arranged in a circumference manner.
Preferably, a reinforcing column is arranged between two ends of the bottom surface of the mounting base and the corresponding power transmission tower.
Preferably, a triangular prism-shaped reinforcing cover is arranged on the top surface of the mounting base.
Preferably, the detection mechanism comprises two groups of radar range finders and a central processing unit, wherein each group of radar range finders is provided with a plurality of radar range finders, the two groups of radar range finders are respectively and evenly arranged on the bottom surface of the long side of the installation base, the plurality of radar range finders are in signal connection with the central processing unit, and the central processing unit is in signal connection with the four-point driving mechanism and the hot melting remover.
Preferably, the foreign matter detection method of the detection mechanism includes:
1) Firstly, carrying out initial calibration on radar range finders, namely detecting the initial position of a power transmission line by using the radar range finders and detecting overlapping areas of two adjacent radar range finders, storing initial calibration information in a central processing unit, and then carrying out normal detection work by a detection mechanism;
2) If the radar range finder detects abnormal data, namely that the distance value of the part with the distance of 10-30mm on the power transmission line is reduced, and the distance change still exists after 10 seconds, the radar range finder indicates that foreign matters are wound on the power transmission line at the moment;
2) When the abnormal data is only one, the central processing unit controls the four-point driving mechanism to act, and directly drives the hot melt cleaner to reach the designated position to perform foreign matter cleaning operation;
3) When a plurality of abnormal data exist, the central processing unit firstly eliminates the data positioned in the detection overlapping area in the plurality of abnormal data, the rest abnormal data are ordered according to the distance value between the rest abnormal data and the hot melt cleaner, and finally the central processing unit sequentially controls the four-point driving mechanism to act so as to drive the hot melt cleaner to sequentially reach the positions of the abnormal data, and foreign matter cleaning operation is carried out.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
according to the electric wire foreign matter removing device for the electric transmission tower with the dangerous terrain, disclosed by the invention, the position of the foreign matter on the electric transmission line can be positioned through the detection mechanism, the four-point driving mechanism is controlled to drive the hot melt remover to reach the position of the foreign matter, finally, the foreign matter is removed through the hot melt remover, so that the automatic removing operation of the foreign matter on the electric transmission line is realized, the whole process does not need to be manually participated, the labor capacity of operators is greatly reduced, and the safety of the operators is ensured;
in addition, through the cooperation action of four hoisting equipment, can drive the hot melt cleaner and reach the optional position of power transmission line group, set up this clearing device promptly between two transmission towers, can accomplish the foreign matter removal work of this section power transmission line group, effectively reduced device quantity, practiced thrift manufacturing cost.
Drawings
FIG. 1 is a schematic diagram of a structure of the present invention;
FIG. 2 is a schematic view of a clamping mechanism;
FIG. 3 is a schematic view of a hot melt cutting mechanism;
fig. 4 is a schematic diagram of the operation of the detection mechanism.
In the figure: 1. a mounting base; 2. a four-point drive mechanism; 3. a hot melt remover; 301. a housing; 302. an electric push rod; 303. a bottom plate; 304. a scissors stabilizer; 305. a wire clamping mechanism; 3051. a clamping plate; 3052. a bidirectional telescopic cylinder; 306. a hot melt cutting mechanism; 3061. a rotating electric machine; 3062. a rotating shaft; 3063. a hot melt cutter; 4. a detection mechanism; 401. a radar rangefinder; 402. a central controller; 5. a power transmission tower; 6. a power line group; 7. a reinforcing column; 8. the lid is reinforced.
Detailed Description
In the description, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., the drawings merely correspond to the drawings of the present invention, and in order to facilitate description of the present invention, it is not indicated or implied that the device or element referred to must have a specific azimuth:
the utility model provides a wire foreign matter clearing device for severe topography transmission tower that combines 1-4 of attached drawings, include installation base 1, four-point actuating mechanism 2 and hot melt cleaner 3, the bottom surface both ends of installation base 1 respectively with the corresponding fixed connection of top surface of a transmission tower 5, namely installation base 1 installs the top surface of two adjacent transmission towers 5 directly, let the stability of installation base 1 obtain certain guarantee, installation base 1 sets up to rectangular frame structure, installation base 1 has two length direction's limit and two width direction's limit, wherein two length direction's limit is located between two transmission towers 5, two width direction's limit corresponds the installation with the top of a transmission tower 5 respectively, and the width of installation base 1 is greater than the width of power transmission group 6, according to needs, be equipped with between installation base 1's bottom surface both ends and the corresponding transmission tower 5 and strengthen post 7, corresponding constitution triangle between transmission tower 5 and the installation base 1, further strengthen the installation stability of installation base 1; in addition, the top surface of the installation base 1 is provided with a triangular prism-shaped reinforcing cover 8, and because high-altitude wind power is large and the wind direction is disordered, the overall structural strength of the installation base 1 can be reinforced through the reinforcing cover 8, and the wind resistance of the foreign matter removal device is improved;
the top face of the installation base 1 is provided with a four-point driving mechanism 2 for driving the hot melt cleaner 3 to move, the four-point driving mechanism 2 is provided with four hoisting devices, the four hoisting devices are respectively arranged on four sides of the installation base 1, two hoisting devices between two power transmission towers 5 are in sliding connection with the installation base 1, namely, the hoisting devices on the length direction side are in sliding arrangement, the hoisting devices on the width direction side are in fixed arrangement, when only the two hoisting devices in fixed arrangement work, the hot melt cleaner 3 is driven to move along the length direction, and at the moment, the two hoisting devices in sliding arrangement are also driven to act simultaneously: the steel wire ropes of the four hoisting devices are correspondingly connected with the hot melt cleaner 3, and the movement of the hot melt cleaner 3 can be controlled through the cooperation of the four hoisting devices, wherein the hot melt cleaner 3 is correspondingly positioned in the middle of the installation base 1, namely, the moving range of the hot melt cleaner 3 is within the frame range of the installation base 1, so that the hot melt cleaner 3 can move to any position of the power transmission line group 6 under the driving of the four-point driving mechanism 2;
in addition, the hot melt cleaner 3 comprises a housing 301, an electric push rod 302, a bottom plate 303, a shear stabilizer 304, a wire clamping mechanism 305 and a hot melt cutter 3063; four outer wall surfaces at the top of the shell 301 are respectively connected with steel wire ropes of four hoisting mechanisms in a one-to-one correspondence manner, four connection points of the shell 301 are correspondingly positioned on the same horizontal plane, so that the four sides of the hot melt cleaner 3 are uniformly stressed, an electric push rod 302 is arranged in the shell 301, the telescopic end of the electric push rod 302 penetrates through the bottom surface of the shell 301 and is correspondingly and fixedly connected with the bottom plate 303, a shear-shaped stabilizer 304 is arranged between the bottom plate 303 and the bottom surface of the shell 301, the connection strength between the bottom plate 303 and the shell 301 can be enhanced through the shear-shaped stabilizer 304, the integral wind resistance of the hot melt cleaner 3 is improved, the stability of the hot melt cleaner 3 when cutting foreign matters is ensured, particularly, the top of the shear-shaped stabilizer 304 is in sliding hinge connection with the bottom surface of the shell 301, and the bottom of the shear-shaped stabilizer 304 are also in sliding hinge connection, so that the bottom plate 303 can be opened and closed along with the bottom plate 303 in the lifting process, in addition, the shear-shaped stabilizer 304 can be driven by the electric push rod 302, and the interference of a power transmission line group 6 on the base can be avoided when the foreign matters do not need to be cut; the bottom plate 303 is provided with a wire clamping mechanism 305 for clamping wires and a hot melt cutting mechanism 306 for cutting foreign matters, when the hot melt cleaner 3 works, the hot melt cleaner is firstly brought to the position above the corresponding foreign matters by the four-point driving mechanism 2, then the electric push rod 302 drives the bottom plate 303 to descend to the foreign matters, the wire clamping mechanism 305 clamps the power transmission line where the foreign matters are located, and finally the cutting mechanism 306 is used for cutting off the foreign matters wound on the power transmission line, so that the foreign matters drift away along with wind;
according to the requirement, the two wire clamping mechanisms 305 are set to two groups, the two wire clamping mechanisms 305 are respectively installed at one end of the base, the two wire clamping mechanisms 305 can further stably clamp the power transmission line through the two groups of wire clamping mechanisms 305, the two wire clamping mechanisms 305 are respectively positioned at two sides of the foreign matter during clamping, the wire clamping mechanisms 305 comprise two clamping plates 3051 and two bidirectional telescopic cylinders 3052, the two clamping plates 3051 are respectively hinged with one longitudinal side of the base, the bidirectional telescopic cylinders 3052 are installed on the top surface of the base, the two telescopic ends of the bidirectional telescopic cylinders 3052 are respectively correspondingly connected with the top of one clamping plate 3051, the two clamping plates 3051 can be driven to act simultaneously through the bidirectional telescopic cylinders 3052, and therefore clamping of the two clamping plates 3051 to the power transmission line is achieved. In addition, the hot melt cutting mechanism 306 is located between the two wire clamping mechanisms 305, the hot melt cutting mechanism 306 includes a rotating motor 3061, a rotating shaft 3062 and a hot melt cutter 3063, the rotating motor 3061 is installed on the top surface of the bottom plate 303, the driving end of the rotating motor 3061 is correspondingly connected with the head end of the rotating shaft 3062, the rotating shaft 3062 is vertically arranged, and the tail end of the rotating shaft 3062 is vertically provided with the hot melt cutter 3063, since the foreign matter is generally wound on the power transmission line, and the vertically arranged rotating shaft 3062 is correspondingly perpendicular to the power transmission line, the hot melt cutter 3063 rotates under the driving of the rotating shaft 3062 and the rotating motor 3061, the foreign matter can be cut off, and the foreign matter removing operation can be completed, in particular, the hot melt cutter 3063 is provided with a plurality of pieces, the plurality of hot melt cutters 3063 are correspondingly circumferentially arranged, the cutting efficiency of the hot melt cutter can be further improved, and the cutting range of the hot melt cutter can be improved by setting the plurality of pieces of hot melt cutters 3063 into a plurality of layers because the specific size of the foreign matter cannot be obtained accurately;
the bottom surface of the installation base 1 is provided with a detection mechanism 4 which can detect foreign matters on an electric wire and can control the four-point driving mechanism 2 to drive the hot melt cleaner 3 to work, namely, the detection mechanism 4 has a detection function and can control other mechanisms to act, so that the foreign matter cleaning device can automatically operate, according to requirements, the detection mechanism 4 comprises two radar range finders 401 and a central processing unit, the radar range finders 401 are arranged in two groups, each group is provided with a plurality of radar range finders 401, the two groups are uniformly arranged on the bottom surface of the long side of the installation base 1, each group of radar range finders 401 are arranged along the length direction of the installation base 1, a region for detecting coincidence exists between two adjacent radar range finders 401, the central processing unit can record coordinates of the coincidence region according to own parameters of radar range finders, the radar range finders 401 are in signal connection with the central processing unit, and the central processing unit is in signal connection with the four-point driving mechanism 2 and the hot melt cleaner 3;
the foreign matter detection method of the detection mechanism 4 is as follows:
1) Firstly, the radar range finders 401 are initially calibrated, namely, the radar range finders 401 are utilized to detect the initial positions of the power transmission lines, the detection coincidence areas of two adjacent radar range finders 401 are stored in the central processing unit, then the detection mechanism 4 performs normal detection work, and although the power transmission line group 6 can slightly shake under the action of wind, the initial positions of the power transmission lines detected by the radar range finders 401 are allowed to have a certain range error;
2) If the radar range finder 401 detects abnormal data, namely, if the condition that the distance value of the part with the distance of 10-30mm on the power transmission line becomes smaller is detected, and the distance change still exists after 10 seconds, the condition that foreign matters are wound on the power transmission line at the moment is indicated;
2) When the abnormal data is only one, the central processing unit controls the four-point driving mechanism 2 to act and directly drives the hot melt cleaner 3 to reach the designated position to perform foreign matter cleaning operation;
3) When there are multiple abnormal data, the central processing unit will reject the data in the detection overlapping area in the multiple abnormal data, the remaining abnormal data are sorted according to the distance value with the hot melt cleaner 3, and finally the central controller 402 controls the four-point driving mechanism 2 to act according to the sequence, so as to drive the hot melt cleaner 3 to sequentially reach the positions of the abnormal data, and perform foreign matter cleaning operation.
The invention has not been described in detail in the prior art, and it is apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. A wire foreign matter removing device for a power transmission tower in a dangerous terrain is characterized in that: the device comprises a mounting base (1), four-point driving mechanisms (2) and a hot melting remover (3), wherein two ends of the bottom surface of the mounting base (1) are fixedly connected with the top surface of a power transmission tower (5) respectively, the mounting base (1) is of a rectangular frame structure, and the top surface of the mounting base (1) is provided with the four-point driving mechanisms (2) for driving the hot melting remover (3) to move; the four-point driving mechanism (2) is provided with four hoisting devices which are respectively arranged on four sides of the installation base (1), two hoisting devices between the two power transmission towers (5) are in sliding connection with the installation base (1), steel wire ropes of the four hoisting devices are correspondingly connected with the hot melt remover (3), and the hot melt remover (3) is correspondingly arranged in the middle of the installation base (1); the bottom surface of the mounting base (1) is provided with a detection mechanism (4) which can detect foreign matters on the electric wire and can control the four-point driving mechanism (2) to drive the hot melt cleaner (3) to work;
the detection mechanism (4) comprises two groups of radar range finders (401) and a central processor, wherein the radar range finders (401) are arranged in two groups, each group is provided with a plurality of radar range finders, the two groups of radar range finders (401) are respectively and evenly arranged on the bottom surface of the long side of the installation base (1), the plurality of radar range finders (401) are in corresponding signal connection with the central processor, and the central processor is in corresponding signal connection with the four-point driving mechanism (2) and the hot melting remover (3);
the foreign matter detection method of the detection mechanism (4) comprises the following steps:
1) Firstly, carrying out initial calibration on radar range finders (401), namely detecting the initial position of a power transmission line by using the radar range finders (401) and detecting overlapping areas of two adjacent radar range finders (401), storing initial calibration information in a central processing unit, and then carrying out normal detection work by a detection mechanism (4);
2) If the radar range finder (401) detects abnormal data, namely that the distance value of a part with the distance of 10-30mm on the power transmission line is reduced, and the distance change still exists after 10 seconds, the radar range finder indicates that foreign matters are wound on the power transmission line at the moment;
3) When the abnormal data is only one, the central processing unit controls the four-point driving mechanism (2) to act and directly drives the hot melt cleaner (3) to reach the designated position to perform foreign matter cleaning operation;
4) When a plurality of abnormal data exist, the central processing unit firstly eliminates the data positioned in the detection overlapping area in the plurality of abnormal data, the rest abnormal data are ordered according to the distance value between the rest abnormal data and the hot melt cleaner (3), and finally the central controller (402) sequentially controls the four-point driving mechanism (2) to act so as to drive the hot melt cleaner (3) to sequentially reach the positions of the abnormal data, and foreign matter removal operation is carried out.
2. The apparatus for removing foreign matter from electrical wiring for a transmission tower of a severe terrain of claim 1, wherein: the hot melt cleaner (3) comprises a shell (301), an electric push rod (302), a bottom plate (303), a shear-shaped stabilizing frame (304), a wire clamping mechanism (305) and a hot melt cutter (3063); four outer wall surfaces at the top of the shell (301) are respectively connected with steel wire ropes of four hoisting mechanisms in a one-to-one correspondence manner, an electric push rod (302) is arranged in the shell (301), a telescopic end of the electric push rod (302) penetrates through the bottom surface of the shell (301) and is correspondingly and fixedly connected with the bottom plate (303), and a shear-shaped stabilizer (304) is arranged between the bottom plate (303) and the bottom surface of the shell (301); the base plate (303) is provided with a wire clamping mechanism (305) for clamping wires and a hot melt cutting mechanism (306) for cutting foreign matters.
3. The apparatus for removing foreign matter from electrical wiring for a transmission tower of severe terrain of claim 2, wherein: the wire clamping mechanism (305) is arranged into two groups, the two wire clamping mechanisms (305) are respectively arranged at one end of the base, the wire clamping mechanism (305) comprises two clamping plates (3051) and two bidirectional telescopic cylinders (3052), the two clamping plates (3051) are correspondingly hinged with one longitudinal side surface of the base respectively, the bidirectional telescopic cylinders (3052) are arranged on the top surface of the base, and the two telescopic ends of the bidirectional telescopic cylinders (3052) are correspondingly connected with the top of one clamping plate (3051) respectively.
4. The apparatus for removing foreign matter from electrical wiring for a transmission tower of severe terrain of claim 2, wherein: the hot melt cutting mechanism (306) is located between two double-deck line mechanisms (305), and hot melt cutting mechanism (306) contain rotating electrical machines (3061), pivot (3062) and hot melt cutter (3063), and rotating electrical machines (3061) are installed in the top face of bottom plate (303), and the drive end of rotating electrical machines (3061) corresponds with the head end of pivot (3062) and is connected, and pivot (3062) are vertical setting, and the tail end of pivot (3062) is equipped with hot melt cutter (3063) perpendicularly.
5. The apparatus for removing foreign matter from electrical wiring for a transmission tower of severe terrain of claim 2, wherein: the hot melt cutters (3063) are arranged into a plurality of pieces, and the plurality of pieces of hot melt cutters (3063) are correspondingly arranged in a circumference mode.
6. The apparatus for removing foreign matter from electrical wiring for a transmission tower of a severe terrain of claim 1, wherein: reinforcing columns (7) are arranged between two ends of the bottom surface of the mounting base (1) and the corresponding power transmission towers (5).
7. The apparatus for removing foreign matter from electrical wiring for a transmission tower of a severe terrain of claim 1, wherein: the top surface of the mounting base (1) is provided with a triangular prism-shaped reinforcing cover (8).
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| CN202111303974.3A CN113809686B (en) | 2021-11-05 | 2021-11-05 | Wire foreign matter removing device for power transmission tower in dangerous terrain |
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| CN202111303974.3A CN113809686B (en) | 2021-11-05 | 2021-11-05 | Wire foreign matter removing device for power transmission tower in dangerous terrain |
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| CN113809686B true CN113809686B (en) | 2023-10-20 |
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| CN110783853A (en) * | 2019-11-21 | 2020-02-11 | 李军 | Foreign matter removing system for high-voltage transmission line |
| CN111969481A (en) * | 2020-07-27 | 2020-11-20 | 国网福建省电力有限公司 | Ground wire hot-melting type foreign matter removing method |
| CN112803294A (en) * | 2020-12-30 | 2021-05-14 | 国网山东省电力公司沂源县供电公司 | Foreign matter removing device for manual inspection of power transmission line |
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