CN105932630A - Transmission line deicer - Google Patents
Transmission line deicer Download PDFInfo
- Publication number
- CN105932630A CN105932630A CN201610377311.9A CN201610377311A CN105932630A CN 105932630 A CN105932630 A CN 105932630A CN 201610377311 A CN201610377311 A CN 201610377311A CN 105932630 A CN105932630 A CN 105932630A
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- Prior art keywords
- deicing
- support
- transmission line
- deicer
- power transmission
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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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
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Abstract
The present invention provides a transmission line deicer. The transmission line deicer comprises a mobile carriage, a support lever bracket, a telescopic support lever, a deicing structure, amplitude modulation apparatus and a storage battery case. The support lever bracket is disposed on a plane of a carrier platform of the mobile carriage; the telescopic support lever is hinge-connected to an upper end of the support lever bracket; the deicing structure is disposed at a front end of the telescopic support lever; the amplitude modulation apparatus and the storage battery case are both disposed on the mobile carriage; and a storage battery in the storage battery case is connected to a motor in the deicing structure by means of a power line. The transmission line deicer provided by the present invention is simple in structure and convenient for operation, and operators can deice transmission lines on the ground by using the transmission line deicer, thereby reducing deicing difficulty; and by use of a lever principle, the height of the deicing structure can be adjusted anytime by means of the telescopic support lever, so that the deicing structure can be always matched with the path of the transmission line, and therefore, the deicing efficiency of the deicing structure is improved.
Description
Technical field
The present invention relates to a kind of for the deicer in electrical domain, particularly relate to a kind of transmission line of electricity and remove
Ice production apparatus.
Background technology
Powerline ice-covering is a kind of natural disaster that transmission line of electricity is commonly encountered, and on transmission line of electricity, icing is less
Time may result in the transmission line of electricity generation sagging between two electric poles or steel tower, if transmission line of electricity
Upper icing is more, then electric pole can be caused to topple over or steel tower fractures, so that supply line interrupts, gives
Live the most constant, bring huge loss to producing simultaneously.
The most domestic be furnished with deicing robot in the supply station that some are big, when frost, it can be utilized to remove
Ice.But it is owing to deicing robot price is higher and needs professional and technical personnel to operate, the poorest at some
Place, it is impossible to configuration deicing robot, the simultaneously technical maintenance of the most difficult configuration specialty and operator,
Thus causing at some local, the deicing of transmission line of electricity the most manually deicing, deicing efficiency is relatively low, removes
Ice labor intensity is bigger.
Summary of the invention
For problem as described above and to combine the antenna height of some local transmission lines of electricity be not the highest spy
Point, the invention provides a kind of deicer for power transmission line, and this device on the ground can be directly to supply lines
Road carries out deicing, reduces de-icing work difficulty；Utilize lever principle can be reached by telescopic supporting rod to adjust
The height of joint deicing mechanism so that deicing mechanism can match with the path of transmission line of electricity all the time, thus
Improve the deicing efficiency of deicing mechanism.
The present invention solves its technical problem and is adopted the technical scheme that: a kind of deicer for power transmission line,
Described mobile utility cart includes article carrying platform, arranges a go-cart in one end of the upper plane of described article carrying platform
Handle, the bottom surface at described article carrying platform is provided with three rollers, and this deicer also includes support bar
Support, telescopic supporting rod, deicing mechanism, amplitude modulation apparatus and accumulator box, described support bar support is arranged
In the upper plane of described article carrying platform, one draw-in groove is set in the upper end of described support bar support, described in stretch
Contracting support bar is hinged in described draw-in groove, and described deicing mechanism includes deicing mechanism support, motor and deicing
Roller, described deicing mechanism support is arranged on the top of described telescopic supporting rod, described motor and deicing rolling
Wheel is arranged on described deicing mechanism support, and described motor and the described corresponding connection of deicing roller,
It is provided with ice remover on described deicing roller；
Described amplitude modulation apparatus includes the elevator with hawser and pulley, and a sidewall of described elevator is provided with
Along elevator circumferencial direction distribution handle, described elevator by elevator fixed support be fixedly installed on described in push away
The lower section of one cross bar of dynamic handle, also sets up a brake bar, and described system on described elevator fixed support
Lever between two described handles, the hawser on described elevator walk around be fixedly installed on described loading put down
Directly it is articulated in after described pulley on platform on the adjustment depression bar that described retractable support rod rear end is arranged,
Described accumulator box is arranged on described article carrying platform and adjacent with described promotion handle, is positioned at described electric power storage
Accumulator in the case of pond passes through electric lines of force connection corresponding with described motor, in the outside of described accumulator box
It is provided with the control switch of described motor.
Preferably, described telescopic supporting rod includes some energy-conservation enough expansion links mutually connected together,
Two rows it are provided with logical along the grafting of described expansion link axial direction Relative distribution on the described expansion link of each joint
Hole, the end of the minor details expansion link that described adjustment depression bar is fixedly installed on described telescopic supporting rod, described
One socket that can socket-connect with the first section telescopic bar on described telescopic supporting rod is set on deicing mechanism support
Pipe, offers the through hole matched with described grafting through hole on the two side of described socket pipe.
Further, a link is set in the lower end of the minor details expansion link of described telescopic supporting rod, and in institute
State link and mount a balancing weight.
Further, one searchlight is set in the upper end of the minor details expansion link of described telescopic supporting rod, in institute
The upper end of the first section telescopic bar stating telescopic supporting rod arranges an operation warning lamp.
Preferably, four edges in the upper plane of described article carrying platform are respectively provided with one and argue for the sake of arguing, described in lift
Bar is nested with in the pipe being fixedly installed on described article carrying platform.
Preferably, described ice remover is a riser arranged along described deicing roller radial direction, and described
Riser is uniformly distributed along the circumferencial direction of described deicing roller.
Preferably, described ice remover is an arc arranged along described deicing roller radial direction, and institute
State arc to be uniformly distributed along the circumferencial direction of described deicing roller.
Further, the outer side surface of described arc is provided with some double wedges.
Preferably, an annular slab is set in the upper position, bottom of described support bar support, and at described
The bottom of strut arranges a threaded rod, arranges one relative with described support bar support on described article carrying platform
The fixed via answered, the bottom of described support bar support is plugged in described fixed via, and described annular
Plate fits with described article carrying platform, offers some through holes on the circumferencial direction of described fixed via,
Described annular slab is offered a through hole corresponding with the through hole of described fixed via periphery.
Preferably, described deicing mechanism support is provided with two relative Elastic clamping plates, and described
One layer of foam-rubber cushion it is provided with on the inwall of Elastic clamping plate.
The invention has the beneficial effects as follows:
1, present configuration is simple, and operation is convenient, and convenient processing and manufacture, complete machine cost is relatively low, non-
Often it is suitable for using deicing in some small towns supply station configurations；The mobile utility cart arranged in the present invention so that
Deicer moves very convenient, utilizes telescopic supporting rod to carry out in the face of high-altitude circuit with may be implemented in simultaneously
Deicing, thus reduce deicing difficulty, and improve deicing safety, also set at retractable support rod rear end
It is equipped with balancing weight, thus reduces the working strength of operator.
2, the deicing roller in the present invention uses motor to drive, and beats defeated by the constantly rotation of ice remover
Icing in electric line, substantially increases deicing efficiency.
3, on deicing mechanism support, it is provided with two relative Elastic clamping plates, utilizes this device along transmission of electricity
During circuit deicing, transmission line of electricity is between two Elastic clamping plates, during deicing, and Elastic clamping plate
Transmission line of electricity can be limited and produce excessive shaking amplitude, thus provide for ice remover accurate and effective deicing
Ensure.
4, support bar support is with the article carrying platform of mobile utility cart for being flexibly connected, and support bar support can realize
Rotate freely, in de-icing work, if mobile utility cart cannot move to the underface of transmission line of electricity,
Can be only moved to the side immediately below transmission line of electricity, the most now rotation support pole support adjusts deicing mechanism
Direction so that icing can be beaten by deicing mechanism from the side of transmission line of electricity, thus improves dress
The serviceability put.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is the part preferred embodiment of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the overall structure schematic diagram of the present invention；
Fig. 2 is the overall structure side view of the present invention；
Fig. 3 is the second specific embodiment structural representation of deicing mechanism support；
Fig. 4 is support bar support and the sectional view moved at utility cart link position；
Fig. 5 is the overall structure schematic diagram of expansion link；
Fig. 6 is the first specific embodiment structural representation of ice remover；
Fig. 7 is the second specific embodiment structural representation of ice remover；
In figure: 1, move utility cart, 11 article carrying platforms, 111 through holes, 12 promote handles, 13 rollers,
14 argue for the sake of arguing, 15 pipes, 2 support bar supports, 21 draw-in grooves, 22 annular slabs, 23 threaded rods, 24 nuts,
25 bearing pins, 3 telescopic supporting rods, 31 expansion links, 311 grafting through holes, 32 adjust depression bars, 33 links,
4 deicing mechanisms, 41 deicing mechanism supports, 411 socket pipes, 412 Elastic clamping plates, 413 foam-rubber cushions, 42
Deicing roller, 421 risers, 422 arcs, 4221 double wedges, 43 motors, 5 amplitude modulation apparatus, volume 51
Raise, 511 hawsers, 52 handles, 53 pulleys, 54 brake bars, 6 balancing weights, 7 accumulator boxs, 8 front ends
Support, 9 searchlights, 10 operation warning lamps.
Detailed description of the invention
Below in conjunction with specific embodiment and accompanying drawing 1-7, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of preferred embodiment of the present invention,
Rather than whole embodiments.Those skilled in the art can do in the case of intension of the present invention
Similar deformation, therefore the present invention is not limited by following public specific embodiment.
The invention provides a kind of deicer for power transmission line (as shown in Figure 1), described mobile utility cart 1,
Support bar support 2, telescopic supporting rod 3, deicing mechanism 4, amplitude modulation apparatus 5 and accumulator box 7, described
Mobile utility cart 1 includes article carrying platform 11, arranges one in one end of the upper plane of described article carrying platform 11 and pushes away
Handlebar 12, the bottom surface at described article carrying platform 11 is provided with three rollers 13, de-icing work personnel
The movement of utility cart 1 can be moved, in order to persistently carry out de-icing work by promoting cart handle 12.
Described support bar support 2 is arranged in the upper plane of described article carrying platform 1, and support bar support 2 is positioned at
The forward position, middle part of article carrying platform 1, arranges a draw-in groove 21, institute in the upper end of described support bar support 2
State telescopic supporting rod 3 to be hinged in described draw-in groove 21, for ease of adjusting telescopic supporting rod in ice detachment
The deicing angle of 3, here, be set to the connected mode between support bar support 2 and article carrying platform 11
Being flexibly connected (as shown in Figure 4), its detailed description of the invention is: lean in the bottom of described support bar support 2
The upper annular slab 22 that installs, and a threaded rod 23 is set in the bottom of described support bar 2, at screw thread
Be nested with a nut 24 on bar 23, described article carrying platform 11 is arranged one with described support bar support 2 phase
Corresponding fixed via, the diameter of shown fixed via is less than the diameter of nut 24, described support bar support
The bottom of 2 is plugged in described fixed via, and described annular slab 22 fits with described article carrying platform 11,
The circumferencial direction of described fixed via offers some through holes 111, described annular slab 22 is offered
One through hole corresponding with the through hole 111 of described fixed via periphery, by tightening and loose nut 24
Realize the fixing of support bar support 2 and rotate, after adjusting the anglec of rotation of support bar support 2,
In order to prevent, nut 24 is unexpected to be loosened, and causes support bar support 2 to rotate freely, here, by bearing pin 25
It is interspersed on the through hole of annular slab 22 and through hole 111 realize support bar support 2 the most fixing.
Due to the place more fallen behind at some, its transmission line of electricity is all to use electric pole to support, therefore transmission of electricity
The height of circuit is not the highest, in conjunction with the height of transmission line of electricity, in this specific embodiment, will flexible prop up
The expansion link 31 that strut 3 is designed as can mutually being regulated by several is constituted, at the described expansion link of each joint
Two rows grafting through hole 311 along described expansion link 31 axial direction Relative distribution it is provided with (such as figure on 31
Shown in 5), in actual ice detachment, can highly adjust telescopic supporting rod according to the concrete of transmission line of electricity
The collapsing length of 3, after adjusting length, realizes each flexible in being interspersed in grafting through hole 311 by bearing pin
Fixing connection between bar 31, at off position, telescopic supporting rod 3 is in contraction state, in order to should
The transport of deicer with deposit, for being easy to the placement of telescopic supporting rod 3 further, at article carrying platform 11
On front end one front-end bracket 8 paralleled with support bar support 2 is set.
Described deicing mechanism 4 includes deicing mechanism support 41, motor 43 and deicing roller 42, described removes
Mechanism of ice support 41 is arranged on the top of described telescopic supporting rod 2, described motor 43 and deicing roller 42
It is arranged on described deicing mechanism support 41, and described motor 43 and the described corresponding company of deicing roller 42
Connect, realize transmission by a power transmission shaft between motor 43 and deicing roller 42, its specific embodiment party
Formula is existing mature technology, be not described in detail at this.For ease of deicing mechanism 4 maintenance with
Change, here, arrange a first section telescopic bar that can be socketed telescopic supporting rod 3 on deicing mechanism support 41
Socket pipe 411 (as shown in Figure 3), socket pipe 411 offers equally and grafting through hole 311 phase
The through hole coordinated, in order to use latch just can realize consolidating between deicing mechanism support 41 and expansion link 31
Fixed connection.Being provided with ice remover on described deicing roller 42, ice remover utilizes the height of deicing roller 42
Speed rotates and impacts the icicle on transmission line of electricity, here, preferred two kinds of specific embodiments of ice remover,
The first is: ice remover is a riser 421 (as shown in Figure 6), and described riser 421 rolls along described deicing
The radial direction of wheel 42 is arranged, and four risers 421 are uniform along the circumferencial direction of described deicing roller 42
Distribution, for reducing in ice detachment, the shock vibration between ice remover and icicle, here, devise
The second specific embodiment of ice remover: described ice remover is one to set along described deicing roller 42 radial direction
The arc 422 put, arc 422 has certain radian, when contacting with icicle, has certain delaying
Angle of attack degree, therefore do not result in the biggest impact shock, four described arcs 422 are along described deicing roller
The circumferencial direction of 42 is uniformly distributed, for increasing the arc 422 destruction dynamics to icicle further, here,
Being provided with some double wedges 4221 in an outside wall surface of arc 422, icicle can be implemented by double wedge 4221
Deicing destroys.
In actual application, when applying this device to carry out deicing operation, usually two artificial one group,
One personal responsibility promotes mobile utility cart 1, and a personal responsibility controls the height of telescopic supporting rod 3 and removes
Ice operation, adjusts the height of deicing mechanism 4 for ease of staff and alleviates the working strength of staff,
Here, arrange a link 33 in the lower end of the minor details expansion link of described telescopic supporting rod 3, and at described extension
Ring 33 mounts a balancing weight 6, and balancing weight 6 can reduce the downforce degree of staff.As an only people
When using this device to carry out deicing, for the ease of the angle of bend according to transmission line of electricity of deicing personnel's discontinuity
Degree adjusts the height of deicing mechanism, here, be provided with amplitude modulation apparatus 5 in this device, described amplitude modulation fills
Put 5 and include the elevator 51 with hawser 511 and pulley 53, a sidewall of described elevator 51 is provided with
Along the handle 52 of elevator circumferencial direction distribution, described elevator 51 is fixedly installed on institute by elevator fixed support
State the lower section (as shown in Figure 1) of the cross bar promoting handle 12, described elevator fixed support also sets
Put a brake bar 54, and described brake bar 54 is between two described handles 52, on described elevator 51
Hawser 511 walk around directly mounting after the described pulley 53 being fixedly installed on described article carrying platform 11
On the adjustment depression bar 32 that described telescopic supporting rod 3 rear end is arranged, described adjustment depression bar 32 is fixing to be set
Put the end of minor details expansion link 31 on described telescopic supporting rod 3, when needing to adjust deicing mechanism 4
Time highly, being taken off by brake bar 54, then rotate elevator 51 by handle 52, elevator 51 passes through cable
Rope 511 pulls telescopic supporting rod 3, thus realizes the height adjustment of deicing mechanism 4, when being adjusted in place it
After, then brake bar 54 is put on elevator fixed support, in order to again brake elevator.
Described accumulator box 7 is arranged on described article carrying platform 11 and adjacent with described promotion handle 12,
The accumulator being positioned at described accumulator box 7 is (clear, at schematic diagram for holding schematic diagram by electric lines of force
In be not drawn into) with the described corresponding connection of motor 43, be provided with described in the outside of described accumulator box 7
The control switch of motor 43.
In the weather that some freeze, in order to ensure that lives and produce is normally carried out, it is sometimes necessary to electricity
Power staff, carries out removing ice of power transmission line operation at night, when working at night, for the ease of work
Personnel see the icing on transmission line of electricity or icicle clearly, here, on the minor details expansion link of telescopic supporting rod 3
Arranging a searchlight 9, searchlight 9 passes through electric lines of force connection corresponding with the accumulator in accumulator box 7,
Further, for improving deicing safety, prevent personnel from entering into below deicing operation area, here,
Arranging an operation warning lamp 10 on the first joint joint expansion link of telescopic supporting rod 3, operation warning lamp 10 is by electricity
Line of force connection corresponding with the accumulator in accumulator box 7, is provided with searchlighting in the outside of accumulator box 7
The control switch of lamp 9 and operation warning lamp 10.For ease of transport and the carrying of whole device, here,
Four edges of the upper plane of described article carrying platform 11 are respectively provided with one and argue for the sake of arguing 14, described in argue for the sake of arguing and 14 be nested with
In the pipe 15 being fixedly installed on described article carrying platform 11, argue for the sake of arguing 14 can in pipe 15 from
By movable but do not come off.
During deicing, due to the ice remover impact effect to icicle, transmission line of electricity is certain to occur
Wiggly situation, in order to reduce the rocking tendency of transmission line of electricity and improve deicing efficiency, here,
Two relative Elastic clamping plates 412 (as shown in Figure 3) it are provided with on described deicing mechanism support 41, and
One layer of foam-rubber cushion 413 it is provided with on the inwall of described Elastic clamping plate 412, when deicing operation, transmission line of electricity
It is positioned at two Elastic clamping plates 412, Elastic clamping plate 412 and foam-rubber cushion 413 left and right of transmission line of electricity is shaken
Pendulum can play certain inhibitory action.
In addition to the technical characteristic described in description, it is the known technology of those skilled in the art.
The above combines accompanying drawing and is described above in detail the preferred embodiment of the present invention and embodiment, but this
Invention is not limited to the above-described embodiment and examples, comes for those skilled in the art
Saying, without departing from the inventive concept of the premise, it is also possible to make some improvement and modification, these improve
Also protection scope of the present invention is should be regarded as with modification.
Claims (10)
1. a deicer for power transmission line, described mobile utility cart includes article carrying platform, in described loading
One end of the upper plane of platform arranges a cart handle, and the bottom surface at described article carrying platform is provided with three
Roller, is characterized in that, this deicer also include support bar support, telescopic supporting rod, deicing mechanism,
Amplitude modulation apparatus and accumulator box, described support bar support is arranged in the upper plane of described article carrying platform,
The upper end of described support bar support arranges a draw-in groove, and described telescopic supporting rod is hinged in described draw-in groove, institute
State deicing mechanism and include that deicing mechanism support, motor and deicing roller, described deicing mechanism support are arranged on
The top of described telescopic supporting rod, described motor and deicing roller are arranged on described deicing mechanism support,
And described motor and the described corresponding connection of deicing roller, described deicing roller is provided with ice remover；
Described amplitude modulation apparatus includes the elevator with hawser and pulley, and a sidewall of described elevator is provided with
Along elevator circumferencial direction distribution handle, described elevator by elevator fixed support be fixedly installed on described in push away
The lower section of one cross bar of dynamic handle, also sets up a brake bar, and described system on described elevator fixed support
Lever between two described handles, the hawser on described elevator walk around be fixedly installed on described loading put down
Directly it is articulated in after described pulley on platform on the adjustment depression bar that described retractable support rod rear end is arranged,
Described accumulator box is arranged on described article carrying platform and adjacent with described promotion handle, is positioned at described electric power storage
Accumulator in the case of pond passes through electric lines of force connection corresponding with described motor, in the outside of described accumulator box
It is provided with the control switch of described motor.
Deicer for power transmission line the most according to claim 1, is characterized in that, described retractable support
Bar includes some energy-conservation enough expansion links mutually connected together, and is respectively provided with on the described expansion link of each joint
Having two rows grafting through hole along described expansion link axial direction Relative distribution, described adjustment depression bar is fixedly installed
The end of the minor details expansion link on described telescopic supporting rod, described deicing mechanism support arranges one can
The socket pipe socket-connected with the first section telescopic bar on described telescopic supporting rod, in the two side of described socket pipe
On offer the through hole matched with described grafting through hole.
Deicer for power transmission line the most according to claim 2, is characterized in that, at described flexible
The lower end of the minor details expansion link of strut arranges a link, and mounts a balancing weight at described link.
Deicer for power transmission line the most according to claim 2, is characterized in that, at described flexible
The upper end of the minor details expansion link of strut arranges a searchlight, at the first section telescopic bar of described telescopic supporting rod
Upper end arranges an operation warning lamp.
Deicer for power transmission line the most according to claim 1, is characterized in that, puts down in described loading
Four edges of the upper plane of platform are respectively provided with one and argue for the sake of arguing, described in argue for the sake of arguing to be nested with and be fixedly installed on described load
In pipe on thing platform.
Deicer for power transmission line the most according to claim 1, is characterized in that, described ice remover is
One riser arranged along described deicing roller radial direction, and described riser is along the circumference of described deicing roller
Direction is uniformly distributed.
Deicer for power transmission line the most according to claim 1, is characterized in that, described ice remover is
One arc arranged along described deicing roller radial direction, and described arc is along described deicing roller
Circumferencial direction is uniformly distributed.
Deicer for power transmission line the most according to claim 6, is characterized in that, at described arc
Outer side surface on be provided with some double wedges.
Deicer for power transmission line the most according to claim 1, is characterized in that, at described support bar
The upper position, bottom of support arranges an annular slab, and arranges a threaded rod in the bottom of described support bar,
Described article carrying platform arranges a fixed via corresponding with described support bar support, described support bar
The bottom of support is plugged in described fixed via, and described annular slab fits with described article carrying platform,
The circumferencial direction of described fixed via offers some through holes, described annular slab is offered one and institute
State the through hole that the through hole of fixed via periphery is corresponding.
Deicer for power transmission line the most according to claim 1, is characterized in that, in described deicing
It is provided with two relative Elastic clamping plates on mechanism rack, and is provided with on the inwall of described Elastic clamping plate
One layer of foam-rubber cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610377311.9A CN105932630B (en) | 2016-05-30 | 2016-05-30 | Deicer for power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610377311.9A CN105932630B (en) | 2016-05-30 | 2016-05-30 | Deicer for power transmission line |
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| CN105932630A true CN105932630A (en) | 2016-09-07 |
| CN105932630B CN105932630B (en) | 2018-05-15 |
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Cited By (7)
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| CN106655057A (en) * | 2016-12-13 | 2017-05-10 | 国网山东省电力公司寿光市供电公司 | High-voltage wire deicing device and working method |
| CN107597648A (en) * | 2017-09-20 | 2018-01-19 | 孙景玉 | A kind of power equipment snow removing ice-melt clearing apparatus |
| CN110474278A (en) * | 2019-08-05 | 2019-11-19 | 湖北工业大学 | A kind of deicer for power transmission line |
| CN110797823A (en) * | 2019-11-15 | 2020-02-14 | 国网山东省电力公司兰陵县供电公司 | Power supply line defroster |
| CN111030011A (en) * | 2019-12-10 | 2020-04-17 | 国网内蒙古东部电力有限公司兴安供电公司 | Electric power transmission device capable of adjusting supporting direction and angle |
| CN111564808A (en) * | 2020-04-02 | 2020-08-21 | 国网浙江省电力有限公司湖州供电公司 | Ground wire direct current ice melting device |
| CN111608874A (en) * | 2020-06-01 | 2020-09-01 | 蓝枫电气(杭州)有限公司 | Special maintenance equipment of wind-powered electricity generation |
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