CN212627062U - Power grid overhead transmission cable deicing device - Google Patents
Power grid overhead transmission cable deicing device Download PDFInfo
- Publication number
- CN212627062U CN212627062U CN202021425876.8U CN202021425876U CN212627062U CN 212627062 U CN212627062 U CN 212627062U CN 202021425876 U CN202021425876 U CN 202021425876U CN 212627062 U CN212627062 U CN 212627062U
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- China
- Prior art keywords
- ice
- ice breaking
- rack
- overhead transmission
- frame
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- Expired - Fee Related
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Abstract
The utility model discloses a deicing device for overhead transmission cables of a power grid, which comprises a frame, wherein symmetrical travelling mechanisms and symmetrical ice breaking devices are arranged inside the frame; the mechanism that opens ice includes the pendulum rod, the pendulum rod bottom is equipped with the cam, and with the edge contact of cam, pendulum rod horizontal segment left end one third position department is connected with last frame is articulated, the sliding tray that link up around the right side section of pendulum rod is equipped with, but install sliding positioning's slider in the sliding tray, the inboard end of slider is articulated to be connected with the movable rod, and the movable rod is located the cable directly over, the movable rod lower extreme articulates there is gliding piece that opens ice from top to bottom, the pendulum rod horizontal segment right-hand member passes through reset spring and last frame swing joint, and this neotype effect does: the cam and the swing rod drive the ice breaking piece to do reciprocating linear motion, the cable is continuously knocked to break ice, the ice layer on the surface of the cable can be effectively removed, and the sliding positioning of the sliding block can adjust the up-and-down motion distance of the ice breaking piece.
Description
Technical Field
The utility model relates to a power grid overhead transmission line cable defroster belongs to transmission line cable deicing equipment technical field.
Background
The problem of safe operation of an overhead transmission line in a power grid is a common international concern, ice disasters of the overhead transmission line frequently occur along with frequent occurrence of extreme weather in recent years, and when the ice thickness exceeds the designed ice thickness of the line, the line is easy to break, collapse and other accidents.
Most of the traditional traveling modes in the deicing device adopt pulleys to travel and are pulled by ground workers, but the method is not suitable for western high-altitude and complex-terrain areas in China; most of the deicing modes adopt a rotary circular ice blade to cut ice blocks, and also adopt modes of melting ice and snow by a heat source and the like, the ice blade is used for cutting the ice blocks to remove ice covering on electric wires, which cannot be effectively removed, and a plurality of ice blocks are remained to wrap the electric wires; the consumed electric energy is large and the time is long when the heat source is used for melting ice; when the ice is removed by beating with a hammer, the ice may not be beaten when thick ice is covered.
Disclosure of Invention
An object of the utility model is to provide a power grid overhead transmission line cable defroster has solved the problem of prior art at transmission line cable deicing in-process deicing inefficiency.
The utility model adopts the technical scheme as follows: the utility model provides a power grid overhead transmission cable defroster, includes the frame, the frame comprises upper frame, lower frame and connecting plate side open-ended cavity structure, wherein, through dismantled and assembled fixed connection of connecting plate between upper frame and the lower frame, the installation and the later maintenance of the internals of being convenient for, just the connecting plate is U-shaped groove structure for the frame is side open-ended cavity structure, can ride and stride on the cable, running gear is installed at the inside both ends of frame, frame internally mounted has the device that opens ice between the running gear.
The walking mechanism is driven by a driving motor, the ice breaking device is driven by a speed regulating motor, wherein the speed regulating motor outputs high-rotation-speed power, and the driving motor and the speed regulating motor are both electrically connected with a rechargeable storage battery fixed on the outer side of the rack.
Running gear is including going upward travelling wheel and lower travelling wheel, it passes through the rotatable fixed upper end in last frame to go upward the travelling wheel, the travelling wheel passes through the rotatable fixed connection in elastic component and lower carriage and the lower carriage upper end down, and wherein, every travelling wheel structure is the same, and every travelling wheel circumference terminal surface is opened there is the ring channel, and the ring channel surface opens the slot that has "people" style of calligraphy structure, can increase the frictional force between walking wheel and the cable, and can also clear away remaining residual ice sediment on the cable, it is connected with the cable with the ring channel of lower travelling wheel to go upward the travelling wheel for this device can advance on the cable, the travelling wheel and driving motor output fixed connection go upward that are located the frame left end, and driving motor fixed mounting is at the support outside end.
The ice breaking device comprises ice breaking mechanisms which are symmetrical up and down, each ice breaking mechanism comprises a swing rod, each swing rod is of a horizontal L-shaped structure, a cam is arranged at the bottom of a vertical section of each swing rod and is in contact with the edge of the cam, the cam can make a rotary motion to drive the swing rods to swing, the cams are fixedly connected with the output ends of speed regulating motors, the cams are located on the outer sides of travelling wheels, the speed regulating motors are fixed at the inner side ends of mounting plates, one third of the left ends of the horizontal sections of the swing rods are hinged to upper frames through hinged pieces, sliding grooves which are communicated from front to back are formed in the right sections of the swing rods, sliders capable of being positioned in a sliding mode are mounted in the sliding grooves, movable rods are hinged to the inner side ends of the sliders and are located right above cables, ice breaking pieces are hinged to the lower ends of the movable rods, limiting pieces, the ice breaking piece can only slide up and down, and the right end of the horizontal section of the swing rod is movably connected with the upper frame through a return spring.
The ice breaking piece comprises an elastic assembly, the bottom of the elastic assembly is hinged to the movable rod, an arc-shaped steel plate is fixed to the top of the elastic assembly, a plurality of ice breaking knives which are distributed annularly are fixed to the inner wall of the arc-shaped steel plate, and the ice breaking knives are of a conical structure.
Furthermore, the inner walls of the annular grooves of the upper travelling wheel and the lower travelling wheel at the right end of the frame are fixed with densely distributed broken filaments.
Further, elastic component includes the fixed cylinder, the fixed cylinder is upper end open-ended cavity structure, has cup jointed the activity section of thick bamboo of lower extreme open-ended cavity structure in the fixed cylinder, the activity section of thick bamboo passes through supporting spring with the fixed cylinder and is connected, and wherein supporting spring both ends respectively with activity section of thick bamboo and the inside fixed connection of fixed cylinder.
Furthermore, the lower end face of the lower frame under the travelling mechanism and the ice breaking mechanism is provided with an ice discharging hole.
Further, the lower extreme of lower carriage is fixed with the handle, and the handle extends the lower carriage for, when installing this device at the cable, the clearance grow between pull handle, upward travelling wheel and the lower travelling wheel, the installation of being convenient for, the handle has portable's effect in the transportation simultaneously.
Further, the storage battery is fixed at the outer side end of the lower frame far away from the ice breaking mechanism and used for balancing the device.
Furthermore, a balancing weight is fixed at the bottom of the lower frame and used for balancing the device.
The beneficial effects of the utility model reside in that:
the utility model discloses an adjustable speed motor makes the cam high-speed rotatory, drive pendulum rod reciprocating swing, pendulum rod reciprocating swing drives the piece that opens ice and is reciprocal linear motion, strike the ice to the cable in succession, can effectively get rid of the firm ice bank in cable surface, the distance of the piece up-and-down motion that opens ice can be adjusted through the slide positioning of slider in addition, not only can adjust the impact force of the piece that opens ice to the cable, applicable in the ice bank of different thickness, and can also carry out the deicing to the cable of different diameters, the suitability is wider, the damage of the sword that opens ice to the cable can be reduced to the elastic component that the piece that opens ice simultaneously connects.
The utility model discloses a "people" style of calligraphy that walking wheel was equipped with constitutes and the broken filament can roll, clean remaining incomplete ice at the cable, has further improved the quality of deicing.
The utility model discloses lower travelling wheel passes through elastic component and is connected with the lower frame for this device is advancing the in-process more steady, can be applicable to the cable of different diameters moreover, and the cooperation handle uses in addition, makes this device carry the in-process, installs in the cable in-process more convenient.
Drawings
Fig. 1 is a schematic diagram of the novel rear-view three-dimensional structure.
Fig. 2 is a schematic view of the novel front view cross-section structure.
Fig. 3 is a schematic diagram of the novel rear perspective partial structure.
Fig. 4 is a schematic view of the novel front perspective partial structure.
Fig. 5 is a schematic front sectional view of the elastic assembly of the present invention.
Fig. 6 is a schematic top view of the present invention.
In the figure: the ice breaking device comprises a cable 1, a frame 2, an upper frame 2-1, a lower frame 2-2, a connecting plate 2-3, a travelling mechanism 3, an upper travelling wheel 3-1, a lower travelling wheel 3-2, an upper bracket 3-3, a lower bracket 3-4, an annular groove 3-5, an ice breaking device 4, an ice breaking mechanism 4-1, a swing rod 4-2, a cam 4-3, a hinged part 4-4, a sliding groove 4-5, a sliding block 4-6, a screw rod 4-7, a movable rod 4-8, a limiting part 4-9, an ice breaking part 4-10, an arc steel plate 4-11, a reset spring 5, a driving motor 6, a speed regulating motor 7, a storage battery 8, a balancing weight 9, an elastic component 10, a movable cylinder 10-1, a fixed cylinder 10-2, a supporting spring 10-3, a handle 11, a movable cylinder 10, And an ice discharge hole 12.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings, which are only used for illustrating the technical solutions of the present invention and are not limited.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
As shown in fig. 1-6, a deicing device for power grid overhead transmission cables comprises a rack 2, wherein the rack 2 is a cavity structure with an opening at a side end, and is composed of an upper rack 2-1, a lower rack 2-2 and a connecting plate 2-3, wherein the upper rack 2-1 and the lower rack 2-2 are detachably and fixedly connected with the connecting plate 2-3 through a fastening bolt, so that installation and later maintenance of internal components are facilitated, the connecting plate 2-3 is of a U-shaped groove structure, the rack 2 is of the cavity structure with the opening at the side end and can straddle the cable 1, traveling mechanisms 3 are installed at two ends inside the rack 2, and an ice breaking device 4 is installed inside the rack 2 between the traveling mechanisms 3.
The walking mechanism 3 is driven by a driving motor 6, the ice breaking device 4 is driven by a speed regulating motor 7, wherein the speed regulating motor 7 outputs high-rotation-speed power, and the driving motor 6 and the speed regulating motor 7 are both electrically connected with a rechargeable battery 8 fixed on the outer side of the rack 2 through fastening bolts.
The travelling mechanism 3 comprises an upper travelling wheel 3-1 and a lower travelling wheel 3-2, the upper travelling wheel 3-1 is rotatably fixed at the upper end in an upper frame 2-1 through an upper bracket 3-3, wherein the upper bracket 3-3 is welded and fixed with the upper frame 2-1, the upper bracket 3-3 is rotatably connected with the upper travelling wheel 3-1 through a rotating shaft, the lower travelling wheel 3-2 is rotatably and fixedly connected with the upper end in a lower frame 2-2 through an elastic component 10 and a bracket, wherein a lower bracket 3-4 is welded and fixedly connected with the lower frame 2-2, a lower bracket 3-4 is rotatably connected with the lower travelling wheel 3-2 through rotation, each travelling wheel has the same structure, the circumferential end surface of each travelling wheel is provided with an annular groove 3-5, and the surface of the annular groove 3-5 is provided with a groove (not shown in the figure) with a herringbone structure, the friction between the travelling wheels and the cable 1 can be increased, residual ice residues on the cable 1 can be removed, and the annular grooves 3-5 of the upper travelling wheels 3-1 and the lower travelling wheels 3-2 are connected with the cable 1, so that the device can travel on the cable 1.
The upper traveling wheel 3-1 positioned at the left end of the frame 2 is fixedly connected with the output end of the driving motor 6 through a coupler, and the driving motor 6 is fixed at the outer side end of the upper bracket 3-3 through a fastening bolt; densely distributed broken filaments (not shown in the figure) are fixed on the inner walls of annular grooves 3-5 of the upper travelling wheel 3-1 and the lower travelling wheel 3-2 at the right end of the frame 2.
The ice breaking device 4 comprises an ice breaking mechanism 4-1 which is symmetrical up and down, the ice breaking mechanism 4-1 comprises a swing rod 4-2, the swing rod 4-2 is of a horizontal L-shaped structure, a cam 4-3 is arranged at the bottom of a vertical section of the swing rod 4-2 and is in contact with the edge of the cam 4-3, the cam 4-3 rotates to drive the swing rod 4-2 to swing, the cam 4-3 is fixedly connected with the output end of a speed regulating motor 7, the cam 4-3 is positioned on the outer side of a walking wheel, the speed regulating motor 7 is fixed on the inner side end of a mounting plate through a fastening bolt, the left one third position of a horizontal section of the swing rod 4-2 is hinged with an upper frame 2-1 through a hinge element 4-4, and the right section of the swing rod 4-2 is provided with a sliding groove 4-5 which, a sliding block 4-6 capable of being positioned in a sliding way is arranged in the sliding groove 4-5, wherein a threaded hole which is communicated with the left and the right is formed in the center of the sliding block 4-6, a screw rod 4-7 which can be matched with the threaded hole in a rotating way is fixed in the sliding groove 4-5, two ends of the screw rod 4-7 are rotatably connected with two side ends of the sliding groove 4-5 through bearings, the screw rod 4-7 is meshed with the threaded hole, the position of the sliding block 4-6 can be adjusted by rotating the screw rod 4-7, a movable rod 4-8 is hinged at the inner side end of the sliding block 4-6, the movable rod 4-8 is positioned right above the cable 1, an ice breaking piece 4-10 is hinged at the lower end of the movable rod 4-8, a limiting piece 4-9 is sleeved on the ice breaking piece 4-10, and the limiting piece 4-, so that the ice breaking piece 4-10 can only slide up and down, the right end of the horizontal section of the swing rod 4-2 is movably connected with the frame 2 through a return spring 5, wherein two ends of the return spring 5 are respectively fixedly connected with the swing rod 4-2 and the frame 2.
The ice breaking pieces 4-10 comprise elastic components 10, the bottoms of the elastic components 10 are hinged with the movable rods 4-8, arc-shaped steel plates 4-11 are fixedly welded to the tops of the elastic components 10, and a plurality of annularly-distributed ice breaking knives (not shown in the figure) are fixedly welded to the inner walls of the arc-shaped steel plates 4-11, wherein the ice breaking knives are of a conical structure.
The elastic component 10 comprises a fixed cylinder 10-2, the fixed cylinder 10-2 is of a cavity structure with an opening at the upper end, a movable cylinder 10-1 of a cavity structure with an opening at the lower end is sleeved in the fixed cylinder 10-2, the movable cylinder 10-1 is connected with the fixed cylinder 10-2 through a supporting spring 10-3, and two ends of the supporting spring 10-3 are fixedly connected with the inner parts of the movable cylinder 10-1 and the fixed cylinder 10-2 respectively.
In the utility model, the ice discharging is convenient, so the ice discharging holes 12 are arranged on the lower end surface of the lower frame 2-2 under the travelling mechanism 3 and the ice breaking mechanism 4-1.
In the present invention, considering that when the device is installed on the cable 1, the gap between the upper traveling wheel 3-1 and the lower traveling wheel 3-2 is enlarged by the pull handle 11, which is convenient for installation, and the handle 11 has a portable function during transportation, the lower end of the bracket connected with the lower traveling wheel 3-2 is fixed with the handle 11 by the fastening screw, and the handle 11 extends out of the lower frame 2-2.
In the utility model, the storage battery 8 is fixed at the outer side end of the lower frame 2-2 far away from the ice breaking mechanism 4-1 in consideration of balancing the device; and a balancing weight 9 is welded and fixed at the bottom of the lower frame 2-2.
The utility model discloses a use method:
first, the handle 11 is pulled out to enlarge the gap between the upper traveling wheel 3-1 and the lower traveling wheel 3-2, the traveling mechanism 3 is straddled on the cable 1, then, the speed regulating motor 7 is started, the speed regulating motor 7 rotates at a high speed to drive the cam 4-3 to rotate, the cam 4-3 rotates at a high speed to drive the oscillating bar 4-2 to reciprocate, the oscillating bar 4-2 reciprocates to drive the ice breaking piece 4-10 to do reciprocating linear motion, so that the ice breaking blade continuously knocks the ice layer of the cable 1 to realize deicing, finally, the driving motor 6 is started, the driving motor 6 drives the device to move leftwards along the cable 1, meanwhile, the upper traveling wheel 3-2 and the lower traveling wheel 3-2 can roll an ice layer, broken filaments on the upper traveling wheel 3-2 and the lower traveling wheel 3-2 at the right end can clean the cable 1, deicing of the cable 1 is achieved, and removed ice residues fall outside through the ice discharge hole 12.
Although the present invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes and modifications can be made in the embodiments described above, or equivalent changes and modifications can be made to some of the technical features of the embodiments described above, and any changes, equivalents, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a power grid overhead transmission cable defroster, includes the frame, characterized by: two ends of the inside of the rack are provided with travelling mechanisms, wherein an ice breaking device is arranged between the travelling mechanisms in the rack; the ice breaking device is symmetrically distributed up and down, the ice breaking mechanism comprises swing rods, the swing rods are of a horizontal L-shaped structure, cams are arranged at the bottoms of the vertical sections of the swing rods and are in contact with the edges of the cams, one-third positions of the left ends of the horizontal sections of the swing rods are hinged to the upper frame, sliding grooves which are communicated with the front portion and the rear portion are formed in the right sections of the swing rods, sliding blocks capable of being positioned in a sliding mode are installed in the sliding grooves, movable rods are hinged to the inner side ends of the sliding blocks and are located right above cables, ice breaking pieces are hinged to the lower ends of the movable rods, locating pieces are sleeved on the ice breaking pieces and are connected with the upper frame, and the right ends of the horizontal sections of the swing rods are movably connected with the.
2. A grid overhead transmission cable de-icing apparatus according to claim 1, wherein: the rack is a cavity structure with an opening at the side end, which is formed by an upper rack, a lower rack and a connecting plate, wherein the upper rack and the lower rack are fixedly connected in a detachable way through the connecting plate, and the connecting plate is in a U-shaped groove structure.
3. A grid overhead transmission cable de-icing apparatus according to claim 1, wherein: the walking mechanism is driven by a driving motor, the ice breaking device is driven by a speed regulating motor, and the driving motor and the speed regulating motor are both electrically connected with a rechargeable storage battery arranged on the outer side of the rack.
4. A grid overhead transmission cable de-icing apparatus according to claim 1, wherein: the travelling mechanism comprises an upper travelling wheel and a lower travelling wheel, the upper travelling wheel is rotatably mounted at the upper end in the upper frame through an upper support, the lower travelling wheel is rotatably connected with the upper end in the lower frame through an elastic component and a lower support, a handle is arranged at the lower end of the lower support, the handle extends out of the lower frame, the travelling wheels are identical in structure, an annular groove is formed in the circumferential end face of each travelling wheel, a groove of a herringbone structure is formed in the surface of the annular groove, and the annular grooves of the upper travelling wheel and the lower travelling wheel are connected with cables.
5. A grid overhead transmission cable de-icing apparatus according to claim 1, wherein: the ice breaking piece comprises an elastic assembly, the bottom of the elastic assembly is hinged to the movable rod, an arc-shaped steel plate is fixed to the top of the elastic assembly, a plurality of ice breaking knives which are distributed annularly are fixed to the inner wall of the arc-shaped steel plate, and the ice breaking knives are of a conical structure.
6. A grid overhead transmission cable de-icing apparatus according to claim 4, wherein: the inner walls of the annular grooves of the upper travelling wheel and the lower travelling wheel at the right end of the rack are provided with densely distributed broken filaments.
7. A grid overhead transmission cable de-icing apparatus according to claim 4 or 5, wherein: the elastic component comprises a fixed cylinder, the fixed cylinder is of a cavity structure with an opening at the upper end, a movable cylinder of a cavity structure with an opening at the lower end is sleeved in the fixed cylinder, the movable cylinder is connected with the fixed cylinder through a supporting spring, and two ends of the supporting spring are respectively fixedly connected with the movable cylinder and the inner part of the fixed cylinder.
8. A grid overhead transmission cable de-icing apparatus according to claim 2, wherein: and the lower end surface of the lower rack is provided with an ice discharging hole which is positioned right below the travelling mechanism and the ice breaking mechanism.
9. A grid overhead transmission cable de-icing apparatus according to claim 2, wherein: and a balancing weight is fixed at the bottom of the lower frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021425876.8U CN212627062U (en) | 2020-07-20 | 2020-07-20 | Power grid overhead transmission cable deicing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021425876.8U CN212627062U (en) | 2020-07-20 | 2020-07-20 | Power grid overhead transmission cable deicing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212627062U true CN212627062U (en) | 2021-02-26 |
Family
ID=74720911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021425876.8U Expired - Fee Related CN212627062U (en) | 2020-07-20 | 2020-07-20 | Power grid overhead transmission cable deicing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212627062U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363919A (en) * | 2021-06-09 | 2021-09-07 | 衢州学院 | Electric power overhauls removes ice and snow auxiliary assembly with cable |
| CN114094530A (en) * | 2021-10-26 | 2022-02-25 | 东台市新杰科机械有限公司 | Be applied to electric tower's electric wire and cable protection piece |
| CN114597845A (en) * | 2022-03-11 | 2022-06-07 | 安徽顺开电气有限公司 | Power grid deicing device for electric power energy conservation |
| CN115241832A (en) * | 2022-08-03 | 2022-10-25 | 国家电网有限公司 | Cable deicer |
| CN115347518A (en) * | 2022-10-19 | 2022-11-15 | 国网安徽省电力有限公司合肥供电公司 | Deicing device for high-voltage transmission line |
| CN117175477A (en) * | 2023-11-02 | 2023-12-05 | 国网山东省电力公司荣成市供电公司 | Wire deicing device for high-voltage power transmission and transformation engineering |
-
2020
- 2020-07-20 CN CN202021425876.8U patent/CN212627062U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363919A (en) * | 2021-06-09 | 2021-09-07 | 衢州学院 | Electric power overhauls removes ice and snow auxiliary assembly with cable |
| CN113363919B (en) * | 2021-06-09 | 2022-11-25 | 衢州学院 | Electric power overhauls removes ice and snow auxiliary assembly with cable |
| CN114094530A (en) * | 2021-10-26 | 2022-02-25 | 东台市新杰科机械有限公司 | Be applied to electric tower's electric wire and cable protection piece |
| CN114094530B (en) * | 2021-10-26 | 2023-09-22 | 东台市新杰科机械有限公司 | Electric cable protection piece applied to electric tower |
| CN114597845A (en) * | 2022-03-11 | 2022-06-07 | 安徽顺开电气有限公司 | Power grid deicing device for electric power energy conservation |
| CN114597845B (en) * | 2022-03-11 | 2023-06-09 | 安徽顺开电气有限公司 | Power grid deicing device for power saving |
| CN115241832A (en) * | 2022-08-03 | 2022-10-25 | 国家电网有限公司 | Cable deicer |
| CN115241832B (en) * | 2022-08-03 | 2023-08-25 | 国家电网有限公司 | Cable deicing device |
| CN115347518A (en) * | 2022-10-19 | 2022-11-15 | 国网安徽省电力有限公司合肥供电公司 | Deicing device for high-voltage transmission line |
| CN115347518B (en) * | 2022-10-19 | 2022-12-13 | 国网安徽省电力有限公司合肥供电公司 | Deicing device for high-voltage transmission line |
| CN117175477A (en) * | 2023-11-02 | 2023-12-05 | 国网山东省电力公司荣成市供电公司 | Wire deicing device for high-voltage power transmission and transformation engineering |
| CN117175477B (en) * | 2023-11-02 | 2024-01-23 | 国网山东省电力公司荣成市供电公司 | Wire deicing device for high-voltage power transmission and transformation engineering |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210226 Termination date: 20210720 |
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| CF01 | Termination of patent right due to non-payment of annual fee |