CN107221880A - One kind lives across stringing protection device - Google Patents

One kind lives across stringing protection device Download PDF

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Publication number
CN107221880A
CN107221880A CN201710232409.XA CN201710232409A CN107221880A CN 107221880 A CN107221880 A CN 107221880A CN 201710232409 A CN201710232409 A CN 201710232409A CN 107221880 A CN107221880 A CN 107221880A
Authority
CN
China
Prior art keywords
vertical rod
rocking arm
line
ground
epimere
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710232409.XA
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Chinese (zh)
Other versions
CN107221880B (en
Inventor
杨军
罗彬�
何金波
邱卫卫
倪红献
张洪宁
阮灵琪
沈建力
梁雨哲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Taizhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Taizhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Taizhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202310789580.6A priority Critical patent/CN117013437A/en
Priority to CN201710232409.XA priority patent/CN107221880B/en
Publication of CN107221880A publication Critical patent/CN107221880A/en
Application granted granted Critical
Publication of CN107221880B publication Critical patent/CN107221880B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • H02G1/04Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables

Abstract

Stringing protection device is lived across the invention discloses one kind, it is arranged symmetrically in crossed line both sides, including the fixed pole for standing on ground, the pole includes hypomere vertical rod, epimere vertical rod and at least one section stage casing vertical rod between hypomere vertical rod and epimere vertical rod, the hypomere vertical rod, it is assembled together between stage casing vertical rod and epimere vertical rod by threaded fastener, rocking arm is hinged with the top of the epimere vertical rod, the front portion of the rocking arm is provided with catch net, the rear portion of the rocking arm is provided with balancing weight, the hypomere vertical rod is provided with line slideway, provided with the sliding block that can be slided up and down along line slideway in the line slideway, the sliding block is connected with pulling force rope and pull rope, the front side connection of the pulling force rope and rocking arm, the pull rope is connected with draw-gear.It is of the invention compared with existing crossing frame, it is not necessary to work high above the ground, the assembling of finishing device on ground, it is easy to construct, safety coefficient is high.

Description

One kind lives across stringing protection device
Technical field
Line can be prevented the present invention relates to power transmission and transformation line construction field, especially one kind during high-tension line stringing Road, which is dropped, produces a kind of protection device of destruction to crossed line.
Background technology
Live across, do not have a power failure leap also referred to as, refer to be spanned power line in stringing powered, set up or remove crossing frame When should be had a power failure across power line.Electric transmission line erection construction in, unfolding lead, ground wire when frequent crossing live-line.At present I Mode is largely crossed over using power failure when state's power transmission engineering is led, ground wire unfolding is constructed, it influences the economic benefit of power supply department, and Speed of application is slow.And loss of outage can be reduced using live crossing frame, power supply reliability and speed of application are improved, is power transmission line The direction of road development.While only considering that meeting specification wants for the research lived across is general in Construction practices both at home and abroad Ask, the problem of workload and young crops without considering construction are compensated, therefore for power network code requirement should be met, account for again The technology that lives across that ground area is small, work progress is simple and reliable turns into urgent problem to be solved.
The technology of living across is originally derived from power failure operation.In order to realize the target for having a power failure or not having a power failure in short-term, earliest Develop out wooden (bamboo, steel) matter and live across stringing construction technology.Also have on the material of crossing frame in addition to timber, mao bamboon is used Steel pipe etc..Abroad, 132kV circuits are once successfully crossed over using steel crossing frame by Britain Dixon Scaffold companies;At home, Wooden (bamboo, steel) matter crossing frame is that low-voltage circuit lives across one of technology across what is often selected.At present, it is domestic using more whole Body crossing frame has:Tension force does not have a power failure crossing frame;The parallel crossing frame of twin columns;Lifting energized spanning frame;It is multi-functional to live across Frame is used.But existing crossing frame, which exists, installs the complicated and relatively low defect of safety coefficient.
The content of the invention
The technical problems to be solved by the invention are just to provide one kind and live across stringing protection device, overcome existing leap The installation complexity and the relatively low shortcoming of safety coefficient of frame so that can be in situation about not having a power failure in high pressure stringing work progress Under, fast and safely carry out protection work.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that:One kind lives across stringing protection device, Crossed line both sides are arranged symmetrically, including the fixed pole for standing on ground, and the pole includes hypomere vertical rod, epimere vertical rod And at least one section stage casing vertical rod between hypomere vertical rod and epimere vertical rod, the hypomere vertical rod, stage casing vertical rod and epimere It is assembled together between vertical rod by threaded fastener, vertical rod is along the circumferential direction evenly equipped with some bracing wires, bracing wire is connected with earth anchor And tense rocking arm is hinged with the top of pole, the epimere vertical rod, the front portion of the rocking arm is provided with after catch net, the rocking arm Portion is provided with balancing weight, and the hypomere vertical rod, which is provided with, to be provided with line slideway, the line slideway and can be glided along along line slideway Dynamic sliding block, the sliding block is connected with drawstring and pull rope, the front side connection of the drawstring and rocking arm, the pull rope and traction Device is connected;Under off working state in the presence of balancing weight, rocking arm is rotated backward, during working condition, and draw-gear is led Messenger, pull rope pulls sliding block along line slideway slide downward, and drives drawstring to pull downward on rocking arm, rocking arm is turned to forward Horizontal level, so that the mat set on the rocking arm docking of crossed line both sides, rocking arm is located on crossed line Side.
Preferably, welding job is spacing in the epimere vertical rod and the spacing work to realize respectively to rocking arm of inoperative State and the restriction of off working state position.
Preferably, the epimere vertical rod is provided with the holding fixture for holding fixation tightly, between the holding fixture and rocking arm Provided with bearing revolute pair is formed so as to hold tightly between fixture and rocking arm.
Preferably, the bracing wire includes being connected in epimere vertical rod and in the upper bracing wire of uniform circular arrangement, is connected to The pull-down line arranged in the vertical rod of stage casing and in uniform circular, the pull-down line is connected by double hook with earth anchor, and the upper bracing wire is led to Lever Blocks is crossed with earth anchor to be connected.
Preferably, on the ground provided with ground post, the hypomere vertical rod is transferred on ground post by pin.
Preferably, the bottom of the hypomere vertical rod and ground post are in base, the base is fixed by ground nail On the ground.
Preferably, the draw-gear includes traction electric machine, assembly pulley, the traction electric machine scrolling pull rope was had mercy on sliding Wheel group band movable slider is down moved along line slideway.
The present invention is arranged symmetrically in crossed line both sides, and position is determined by the width of crossed line, and rocking arm works Also thus width is determined length.During work, rocking arm rotates to the Planar realization vertical with pole and docked, and makes the guarantor set on rocking arm Protecting wire net is located above crossed line, so as to play a part of protection to crossed line.
It is of the invention compared with existing crossing frame, it is not necessary to work high above the ground, the assembling of finishing device on ground, after vertical rod, The protection of alive circuit is realized by device, it is easy to construct, safety coefficient is high, and is easy to transport and assembles, and recycles effect Rate is high.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and detailed description:
Fig. 1 is structural representation of the invention;
Fig. 2 is A direction views in Fig. 1;
Fig. 3 is enlarged drawing at II in Fig. 1;
Fig. 4 is the attachment structure schematic diagram of pole and rocking arm;
Fig. 5 is rocking arm assembling structure schematic diagram;
Fig. 6 be pole, post and base attachment structure schematic diagram;
Schematic diagrames of the Fig. 7 for the present invention when crossed line both sides are arranged symmetrically.
Reference:
1. pole, 2. balancing weights, 3. rocking arms, 4. spacing ropes, 5. epimere vertical rods, 6. stage casing vertical rods, 7. line slide rails, 8. Sliding block, 9. hypomere vertical rods, 10. bases, 11. assembly pulleys, 12. traction electric machines, 13. earth anchors, 14. Lever Blocks, 15. double hooks, 16. Pull-down line, bracing wire on 17., 18. drawstrings, 19. work are spacing, and 20. inoperatives are spacing, 21. catch nets, 22. first screw threads for fastening Part, 23. bearings, 24. hold fixture, 25. second threaded fasteners, 26. pins, 27. ground posts, 28. ground nails tightly.
Embodiment
The technical scheme of the embodiment of the present invention is explained and illustrated with reference to the accompanying drawing of the embodiment of the present invention, but under Embodiment only the preferred embodiments of the present invention are stated, and it is not all.Based on the embodiment in embodiment, those skilled in the art Other embodiment is obtained on the premise of creative work is not made, protection scope of the present invention is belonged to.
As depicted in figs. 1 and 2, one kind lives across line protective devices, including the fixed pole 1 for standing on ground, embraces Bar 1 is using cylinder hollow structure (LB-3 types pole can also, depending on actual conditions, it mainly provides support effect).It is described Pole 1 includes hypomere vertical rod 9, epimere vertical rod 5 and at least one section stage casing between hypomere vertical rod 9 and epimere vertical rod 5 is stood Bar 6.The adjustment of present apparatus height can be realized according to the height of crossed line, main to utilize stage casing vertical rod 6, general hypomere is stood Bar is highly 8 meters, and epimere vertical rod is highly 8 meters, and vertical rod single height in stage casing is 6 meters, can determine that stage casing is stood according to actual needs The quantity of bar.
Pole 1 is along the circumferential direction evenly equipped with some bracing wires, and bracing wire is connected with earth anchor 13 and tenses pole.Specific to this implementation Example, bracing wire includes being connected in epimere vertical rod 5 and in the upper bracing wire 17 of uniform circular arrangement, is connected in stage casing vertical rod 6 and is in The pull-down line 16 of uniform circular arrangement, pull-down line 16 is connected by double hook 15 with earth anchor 13, and upper bracing wire 17 passes through Lever Blocks 14 It is connected with earth anchor.The secure localization of whole device is realized by bracing wire.
Hypomere vertical rod 9 is provided with line slideway 7, the line slideway 7 provided with the cunning that can be slided up and down along line slideway Block 8, the sliding block 8 is connected with drawstring 18 and pull rope, and the front side connection of the drawstring and rocking arm, the pull rope is filled with traction Put connection.
Welding job spacing 19 and inoperative spacing 20 are to realize working condition and non-work to rocking arm 3 in epimere vertical rod 5 Make the restriction of state position.Work spacing 19 prevent rocking arm be in singular position, work spacing 18 and spacing rope 4 prevent rocking arm Rotational angle is excessive, influences crossed line.
The positioning to holding fixture tightly is realized in epimere vertical rod provided with annular groove, has an annular groove to be equipped with every 3 meters of positions corresponding Work spacing 19 and inoperative spacing 20 and spacing rope 4, realize to the spacing of rocking arm.Work spacing 19 and inoperative limit Held tightly by holding fixture (such as anchor ear) tightly in annular groove position 20.
As shown in figure 3, passing through the first threaded fastener 22 between the hypomere vertical rod 9, stage casing vertical rod 6 and epimere vertical rod 5 It is assembled together.
As shown in Fig. 2, Fig. 4 and Fig. 5, the front portion of rocking arm 3 is provided with catch net 21, and the epimere vertical rod 5 is solid provided with holding tightly Fixed holding fixture 24, holds fixture 24 tightly and is held tightly by the second threaded fastener 25 and fixed, holding fixture 24 and the rocking arm 3 it Between be provided with bearing 23, hold fixture tightly and be provided with rotating shaft, bearing is installed on rocking arm 3, shaft support is on bearing 23, so as to hold fixture tightly Revolute pair is formed between 24 and rocking arm 3.
As shown in fig. 6, on the ground provided with ground post 27, the hypomere vertical rod 9 is transferred on ground post 27 by pin 26.And And, the bottom of the hypomere vertical rod and ground post are in base 10, and the base 10 is fixed on the ground by ground nail 28.
As shown in fig. 7, being arranged symmetrically the present apparatus in crossed line both sides, position is determined by the width of crossed line, And also thus width is determined rocking arm active length.During work, rocking arm rotates to the Planar realization vertical with pole and docked, so that right Crossed line plays a part of protection.
Under off working state, the assembling of rocking arm 3 and pole 1 is carried out on ground, in the presence of balancing weight 2, rocking arm 3 is backward Rotate, the catch net 21 of rocking arm 3 will not be realized with the alive circuit being spanned and intersected during pole is upright.
Draw-gear includes traction electric machine 12, assembly pulley 11, during work, the scrolling pull rope of traction electric machine 12, pulls sliding block 8 Down moved along line slide rail 7, drive drawstring 18, so as to pull rocking arm 3 to turn to operating position, i.e. horizontal level, realization pair It is spanned the protection of circuit.
Because rocking arm can hang catch net in itself, while using the operation principle of crank block, when sliding block moves along a straight line The rotation of rocking arm is realized, the plane vertical with pole is turned to, the protection to circuit is realized.So as to increase protection domain.
Can be according to shown in Fig. 4 and Fig. 5, realizing rocking arm 3 and hold the assembling of fixture 24, mainly bearing 23 tightly on ground Assembling, it is ensured that rocking arm 3 forms revolute pair between and holding fixture 24 tightly.And carry out hanging catch net 21 on ground.
Before being constructed, with reference to the height and certain safe altitude of crossed line, calculate used in stage casing vertical rod 6 Quantity.Consider that the own wt and circuit of rocking arm drop to the impulse force applied on safety net, rule of thumb formula is calculated Go out the specification of drawstring 18 and spacing rope 4, the weight of balancing weight 2 according to needed for net rocking arm and net re-computation, so as to play flat The effect of weighing apparatus.Pull tension gauge according to needed for being rotated rocking arm 3 calculates the tractive force of corresponding drawstring 18, so as to select to lead accordingly Draw motor 12 and pull rope and select assembly pulley 11.
After all parts are all selected, the assembling of the present apparatus is realized according to Fig. 1.Hypomere vertical rod 9 and ground post 27 first Between the revolute pair formed is connected by pin 26, base 10 is fixed on the ground by ground nail 28 afterwards.Welded in hypomere vertical rod 9 Line slide rail 7, the top shoe 8 of line slide rail 7 realizes linear motion.Hypomere vertical rod 9 can be tight by screw thread with many stage casing vertical rods 6 Firmware is fixed.
Secondly epimere vertical rod 5 and the assembling of associated components are carried out.Annular groove in epimere vertical rod 5 can position holding fixture 24, so that the assembling of rocking arm 3 and epimere vertical rod 5 is realized, after assembling is completed, solderable balancing weight 2 and spacing rope 4.On Section vertical rod 5 is also needed in annular groove periphery welding job spacing 19 and inoperative spacing 20.
After the assembling of epimere vertical rod 5 is completed, the assembling of epimere vertical rod and stage casing vertical rod is carried out by threaded fastener.
After the whole assembling of pole 1 is completed, the upright process of pole 1 is realized in the presence of drawstring 18, now, due to The effect of pouring weight 2, whole rocking arm 3 is in erectility, i.e. off working state.After upright, can by the auxiliary positioning of base 10, And be connected in the presence of the upper bracing wire 17 and pull-down line 16 and Lever Blocks 14 and double hook 15 that uniform circular is arranged with earth anchor 13, Secure localization is realized in the presence of pulling force.
During work, the scrolling pull rope of traction electric machine 12 pulls sliding block 8 to realize the down motion of sliding block, drives drawstring 18, from And pull rocking arm 3 to turn to operating position, i.e. horizontal level, realize the protection to being spanned circuit.
After stringing is completed, tractive force is slowly uninstalled, in the presence of balancing weight 2, rocking arm 3 returns to inoperative shape State, then fell pole 1, carries out the dismounting of each several part.
It is that code fo practice can be realized and recycled according to the present apparatus, and convenient assembly and disassembly and transports.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, and is familiar with The those skilled in the art should be understood that the present invention includes but is not limited to accompanying drawing and interior described in embodiment above Hold.The modification of any function and structure principle without departing from the present invention is intended to be included in the scope of claims.

Claims (7)

1. one kind lives across line protective devices, it is arranged symmetrically in crossed line both sides, it is characterised in that:Including fixed straight The pole on ground is stood on, the pole includes hypomere vertical rod, epimere vertical rod and between hypomere vertical rod and epimere vertical rod At least one section stage casing vertical rod, is assembled together between the hypomere vertical rod, stage casing vertical rod and epimere vertical rod by threaded fastener, Vertical rod is along the circumferential direction evenly equipped with some bracing wires, and bracing wire is connected and tensed with earth anchor to be hinged at the top of pole, the epimere vertical rod There is rocking arm, the front portion of the rocking arm is provided with catch net, and the rear portion of the rocking arm is provided with balancing weight, and the hypomere vertical rod is provided with straight Provided with the sliding block that can be slided up and down along line slideway in line guide rail, the line slideway, the sliding block connects with drawstring and pull rope Connect, the front side connection of the drawstring and rocking arm, the pull rope is connected with draw-gear;In the work of balancing weight under off working state Under, rocking arm rotates backward, during working condition, and draw-gear traction pull rope, pull rope pulls sliding block downward along line slideway Slide, and drive drawstring to pull downward on rocking arm, rocking arm is turned to horizontal level forward, so that crossed line both sides are shaken Arm is docked, and the mat set on rocking arm is located above crossed line.
2. one kind according to claim 1 lives across line protective devices, it is characterised in that:Welded in the epimere vertical rod Connect that work is spacing and inoperative is spacing to realize the working condition to rocking arm and the restriction of off working state position respectively.
3. one kind according to claim 1 lives across line protective devices, it is characterised in that:Set in the epimere vertical rod Have and hold fixed holding fixture tightly, be provided with bearing between the holding fixture and rocking arm and formed so as to hold tightly between fixture and rocking arm Revolute pair.
4. one kind according to claim 1 lives across line protective devices, it is characterised in that:The bracing wire includes connection The upper bracing wire arranged in epimere vertical rod and in uniform circular, the drop-down for being connected in the vertical rod of stage casing and being arranged in uniform circular Line, the pull-down line is connected by double hook with earth anchor, and the upper bracing wire is connected by Lever Blocks with earth anchor.
5. one kind according to claim 1 lives across line protective devices, it is characterised in that:On the ground provided with ground Post, the hypomere vertical rod is transferred on ground post by pin.
6. one kind according to claim 5 lives across line protective devices, it is characterised in that:The bottom of the hypomere vertical rod Portion and ground post are in base, and the base is fixed on the ground by ground nail.
7. one kind according to claim 1 lives across line protective devices, it is characterised in that:The draw-gear includes Traction electric machine, assembly pulley, the traction electric machine scrolling pull rope had mercy on assembly pulley band movable slider down moved along line slideway.
CN201710232409.XA 2017-04-11 2017-04-11 Electrified crossing overhead line protection device Active CN107221880B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202310789580.6A CN117013437A (en) 2017-04-11 2017-04-11 Method for installing electrified crossing overhead line protection device
CN201710232409.XA CN107221880B (en) 2017-04-11 2017-04-11 Electrified crossing overhead line protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710232409.XA CN107221880B (en) 2017-04-11 2017-04-11 Electrified crossing overhead line protection device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN202310789580.6A Division CN117013437A (en) 2017-04-11 2017-04-11 Method for installing electrified crossing overhead line protection device

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CN107221880A true CN107221880A (en) 2017-09-29
CN107221880B CN107221880B (en) 2023-08-29

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CN201710232409.XA Active CN107221880B (en) 2017-04-11 2017-04-11 Electrified crossing overhead line protection device
CN202310789580.6A Pending CN117013437A (en) 2017-04-11 2017-04-11 Method for installing electrified crossing overhead line protection device

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CN202310789580.6A Pending CN117013437A (en) 2017-04-11 2017-04-11 Method for installing electrified crossing overhead line protection device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110282509A (en) * 2019-07-23 2019-09-27 广东电网有限责任公司 A kind of electric power network leap wiring winding integrated apparatus

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Publication number Priority date Publication date Assignee Title
US5054829A (en) * 1990-05-14 1991-10-08 Olsen Peter F Wire placing device
CN1586827A (en) * 2004-09-23 2005-03-02 上海交通大学 Joint-telescopic type super high voltage live cleaning robot
JP3161094U (en) * 2010-04-27 2010-07-22 株式会社ヒメノ Conveyor device to transfer overhead ground wire and power line simultaneously
CN203967625U (en) * 2014-07-14 2014-11-26 国网上海市电力公司 A kind of overhead facility crossing frame
CN204333766U (en) * 2014-12-11 2015-05-13 江苏省电力公司常州供电公司 A kind of portable transmission overhead line crossing construction device
CN205355673U (en) * 2016-01-06 2016-06-29 扬州市振东电力器材有限公司 High -speed railway of not stopping transport across device's span beam rotary mechanism
CN205377169U (en) * 2016-01-12 2016-07-06 国网山东省电力公司夏津县供电公司 Crossing structure for transmission line is erect to cantilever type
CN205429566U (en) * 2015-10-21 2016-08-03 三一汽车起重机械有限公司 Crossing structure
EP3081524A1 (en) * 2015-04-13 2016-10-19 Eric Salvi Mesh track protection
CN206673464U (en) * 2017-04-11 2017-11-24 国网浙江台州市路桥区供电公司 One kind lives across stringing protection device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054829A (en) * 1990-05-14 1991-10-08 Olsen Peter F Wire placing device
CN1586827A (en) * 2004-09-23 2005-03-02 上海交通大学 Joint-telescopic type super high voltage live cleaning robot
JP3161094U (en) * 2010-04-27 2010-07-22 株式会社ヒメノ Conveyor device to transfer overhead ground wire and power line simultaneously
CN203967625U (en) * 2014-07-14 2014-11-26 国网上海市电力公司 A kind of overhead facility crossing frame
CN204333766U (en) * 2014-12-11 2015-05-13 江苏省电力公司常州供电公司 A kind of portable transmission overhead line crossing construction device
EP3081524A1 (en) * 2015-04-13 2016-10-19 Eric Salvi Mesh track protection
CN205429566U (en) * 2015-10-21 2016-08-03 三一汽车起重机械有限公司 Crossing structure
CN205355673U (en) * 2016-01-06 2016-06-29 扬州市振东电力器材有限公司 High -speed railway of not stopping transport across device's span beam rotary mechanism
CN205377169U (en) * 2016-01-12 2016-07-06 国网山东省电力公司夏津县供电公司 Crossing structure for transmission line is erect to cantilever type
CN206673464U (en) * 2017-04-11 2017-11-24 国网浙江台州市路桥区供电公司 One kind lives across stringing protection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110282509A (en) * 2019-07-23 2019-09-27 广东电网有限责任公司 A kind of electric power network leap wiring winding integrated apparatus

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