CN104030201A - Light insulating platform for aloft work - Google Patents

Light insulating platform for aloft work Download PDF

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Publication number
CN104030201A
CN104030201A CN201410201822.6A CN201410201822A CN104030201A CN 104030201 A CN104030201 A CN 104030201A CN 201410201822 A CN201410201822 A CN 201410201822A CN 104030201 A CN104030201 A CN 104030201A
Authority
CN
China
Prior art keywords
pulley
companion ladder
platform
inner frame
aloft work
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.)
Pending
Application number
CN201410201822.6A
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Chinese (zh)
Inventor
何权
梁勇超
黄建林
苏展
伍艺
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.)
Maintenance Co of State Grid Hunan Electric Power Co Ltd
Original Assignee
Maintenance Co of State Grid Hunan 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 Maintenance Co of State Grid Hunan Electric Power Co Ltd filed Critical Maintenance Co of State Grid Hunan Electric Power Co Ltd
Priority to CN201410201822.6A priority Critical patent/CN104030201A/en
Publication of CN104030201A publication Critical patent/CN104030201A/en
Pending legal-status Critical Current

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Abstract

The invention provides a light insulating platform for aloft work. The platform comprises a power transmission part, a truss structure, a supporting part and a limiting device. The power transmission part comprises a remote controller, an electromechanical control cabinet, a motor, a worm and gear speed reducer, a winding roller and a fixed pulley system. The truss structure comprises walking universal wheels, a base, adjustable supporting legs, adjusting nuts, a companion ladder outer frame and an outer escalator. The supporting part comprises a companion ladder inner frame, an inner escalator, a work platform, a platform open plate and a fence. The limiting device comprises a limiting switch and a self-locking clamping jaw, the limiting switch comprises a limiting switch contact arranged on the upper portion of the outer frame and a limiting block disposed on the inner frame, and the self-locking clamping jaw is arranged on the companion ladder inner frame and can hook a truss of the outer frame. The light insulating platform for aloft work can meet the requirements of safety regulations and relative standards, is not limited by the construction range and the outage range, is small in size and good in insulation, and facilitates replacement of primary equipment.

Description

The light insulating station of aloft work
Technical field
The present invention relates to power equipment maintaining apparatus field, relate in particular to the light insulating station of a kind of aloft work.
Background technology
Along with the new period, socioeconomic fast development under the new situation, electricity needs is also increasing rapidly, in order to meet better the need for electricity from all sectors of society, the work such as electrical network all will carry out that a large amount of power supply engineering construction, equipment technological transformation, substation's enlarging, equipment are remodeled every year, power department staff is in the time installing, change, overhaul equipment, conventionally have the limited difficult problem of aloft work, main manifestations is:
1, existing aloft work mainly adopts aerial platform or intelligent fluid pressure drive device, there is the problems such as volume is large, heavy, mobile inconvenience, maintenance that can only be among a small circle, and while carrying out adjacent aloft work, must readjust location, make troubles to maintenance, service personnel labour intensity obviously increases, and has certain potential safety hazard;
2,, when substation maintenance under newly-built substation, " maintenance of whole station " pattern, the resource distribution of high-rise working device is limited, resource anxiety, have that work-site is many, the difficult problem such as service conditions restriction, duration are tight, not permission of porcelain vase equipment personnel climbing;
3, existing aerial platform is subject to the restriction in substation field charging equipment, environment, space, for guaranteeing that apparatus for work enters safely field operation, must close down the relevant charging equipment of all obstruction high-rise workings, fault for sudden transformer is got rid of, maintenance is changed, can cause certain economic loss, and the newly-built substation of part, owing to considering land resources restriction, station equipment compact in design, there is operation blind area in traditional high-rise working device.
Summary of the invention
For the defect of prior art, the present invention aims to provide one and meets security regulations and related specifications requirement, in the time carrying out an electrical equipment construction, be not subject to the light insulating station of aloft work of boundary of works area, power failure range restriction, its volume is little, good insulation preformance, the substation that equipment stands in great numbers can be moved and pass through to replacing, the maintenance of being convenient to carry out primary equipment time, are applicable to installation, the maintenance of the primary equipment such as circuit breaker, current transformer, voltage transformer, disconnector of 220kV and following voltage class.
In order to realize above-mentioned technical purpose, the present invention adopts following technological means: the light insulating station of a kind of aloft work, is characterized in that: described insulating station comprises motivation transfer motion part, truss structure, support section and inhibiting device, wherein:
Described motivation transfer motion part comprises remote controller, electromechanical control cabinet, motor, worm type of reduction gearing, volume Kun and fixed pulley system, between described volume Kun and motor, is connected by worm type of reduction gearing, and described volume Kun and fixed pulley system interconnect;
Described truss structure comprises walking cardan wheel, base, adjustable supports leg, setting nut, companion ladder outside frame and outer staircase, described base bottom connects walking cardan wheel and adjustable supports leg, companion ladder outside frame is installed on described base top, described setting nut, for regulating the position of walking cardan wheel, is installed outer staircase on described companion ladder outside frame;
Described support section comprises that companion ladder inner frame, interior staircase, workplatform, platform leave plate and fence, described fixed pulley system is fixedly connected on companion ladder outside frame and companion ladder inner frame, described interior staircase is arranged on companion ladder inner frame inside, described companion ladder inner frame top erection work platform, the platform of opening or closing bottom described workplatform comprises is opened plate and circumferential fence;
Described inhibiting device comprises limit switch and self-locking claw, described limit switch comprises and is arranged on the limit switch contact of outside frame top and is arranged on the limiting stopper on inner frame, described self-locking claw, described self-locking claw is arranged on companion ladder inner frame, can hook the truss of outside frame.
Preferably, described fixed pulley system comprises the first assembly pulley, the second assembly pulley, the first pulley messenger chain and the second pulley messenger chain; Described the first assembly pulley comprises with the second assembly pulley the pulley that number is identical; Described first pulley messenger chain one end connects volume Kun, and the other end is wound around the first assembly pulley; Described second pulley messenger chain one end connects volume Kun, and the other end is wound around the second assembly pulley; Described the first pulley messenger chain is identical with the canoe of the second pulley messenger chain.
Preferably, described motor is threephase asynchronous machine.
Preferably, described inhibiting device comprises device identification system, and described device identification system is tetra-grooves of 4.5m, 5.0m, 5.5m, 6.0m that are inscribed on inner frame.
Preferably, the agent structure material of described insulated platform is fiber glass epoxy.
Preferably, the fence of described workplatform comprises narrow fence and wide fence.
Beneficial effect of the present invention: the light insulating station of aloft work provided by the invention, can meet security regulations and related specifications requirement, in the time carrying out an electrical equipment construction, not limited by boundary of works area, power failure range, its volume is little, good insulation preformance, the substation that equipment stands in great numbers can be moved and pass through to replacing, the maintenance of being convenient to carry out primary equipment time, are applicable to installation, the maintenance of the primary equipment such as circuit breaker, current transformer, voltage transformer, disconnector of 220kV and following voltage class.The invention solves a difficult problem for on-the-spot high-rise working inconvenience, improved emergency first-aid repair ability, and realized construction operation safety, reduce labour intensity, the object of raising labour efficiency.
Brief description of the drawings
Fig. 1 is that the present invention regains completely, structural representation when off working state;
Fig. 2 is that the present invention launches completely, structural representation when mode of operation;
Fig. 3 is the structural representation of workplatform of the present invention;
Fig. 4 is the structural representation of limit switch of the present invention;
Fig. 5 is the structural representation of self-locking claw of the present invention;
Fig. 6 is the structural representation of present device tag system;
Fig. 7 is the structural representation of pulley messenger chain winding mode of the present invention;
Wherein, 1, electromechanical control cabinet; 2, threephase asynchronous machine; 3, worm type of reduction gearing; 4, volume Kun; 5, walking cardan wheel; 6, base; 7, adjustable supports leg; 8, fixed pulley system; 9, companion ladder outside frame; 10, outer staircase; 11, self-locking claw; 12, limit switch; 12a, limit switch contact; 12b, limiting stopper; 13, companion ladder inner frame; 14, interior staircase; 15, workplatform; 16, platform is opened plate; 17, narrow fence; 18, wide fence; 19, the first assembly pulley; 20, the second assembly pulley; 21, the first pulley messenger chain; 22, the second pulley messenger chain; 23, device identification system; 24, inner frame truss; 25, outside frame truss.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Shown in seeing figures.1.and.2, the light insulating station of a kind of aloft work provided by the invention, comprises motivation transfer motion part, truss structure, support section and inhibiting device.Described motivation transfer motion part comprises remote controller, electromechanical control cabinet 1, motor, worm type of reduction gearing 3, volume Kun 4 and fixed pulley system 8.Between volume Kun 4 and motor, be connected by worm type of reduction gearing 3, volume Kun 4 interconnects with fixed pulley system 8.As better embodiment, described motor is threephase asynchronous machine 2.Wherein, described fixed pulley system 8 comprises the first assembly pulley 19, the second assembly pulley 20, the first pulley messenger chain 21 and the second pulley messenger chain 22; Described the first assembly pulley 19 comprises with the second assembly pulley 20 pulley that number is identical; Described first pulley messenger chain 21 one end connect volume Kun 4, and the other end is wound around the first assembly pulley 19; Described second pulley messenger chain 22 one end connect volume Kun 4, and the other end is wound around the second assembly pulley 20; Described the first pulley messenger chain 21 is identical with the canoe of the second pulley messenger chain 22.
In physical construction, conventional type of drive comprises motor driving, hydraulic-driven, air pressure driving etc.Every kind of type of drive has excellent lacking.Hydraulic-driven is carried out transferring power using liquid as working medium.A complete hydraulic efficiency pressure system is made up of five parts, i.e. energy source device, executive device, control and regulation device, auxiliary device, liquid.Hydraulic pressure is because its transmission force is large, is easy to transmit and configuration, extensive in industry, civilian sector application.The power element hydraulic actuating cylinder of hydraulic efficiency pressure system and the effect of HM Hydraulic Motor are that the pressure energy of liquid is converted to mechanical energy, and obtain the straight reciprocating motion or the gyroscopic movement that need.What the aloft work of some substations, electrical network adopted at present is hydraulically powered hydraulic elevating platform.Such lifting table can reach higher operation height, but because hydraulic-driven needs hydraulic power source, and its supporting actuating unit is larger, and complex structure.Certainly will cause this type of hydraulic platform bulky and heavy, cannot overhaul among a small circle, and the more high disadvantage of cost.And transformer Maintenance and Repair process is high to insulating requirements, and hydraulic efficiency equipment mostly is hardware, has certain potential safety hazard.It is taking pressure gas as working medium that air pressure drives, by the pressure transferring power of gas or the Fluid-transmission of information.The system of transferring power is that pressure gas is flowed to pneumatic apparatus via pipeline and control cock, and the pressure energy of pressure gas is converted to mechanical energy and does work.Air pressure drives to be possessed the safety of use, the advantage such as easily obtains without blast and shock hazard and pneumatic supply.But the same with hydraulic-driven, air pressure drives supporting actuating unit larger, and complex structure.Do not meet light and requirement economy.And motor drives that to possess volume little, propulsive effort is larger, and equipment is used in the advantages such as all kinds of power supply power transformations place power supply convenient sources.Comprehensive above analysis, selects motor to drive as propulsion source form.The motor type of selecting is threephase asynchronous machine 2, and building machine electrical control cabinet 1 is to carry out speed governing to threephase asynchronous machine 2.
Type of drive in mechanical device mainly comprises gear transmission, rack-and-gear transmission, belt wheel transmission, chain gear, pulley system transmission etc.And driving device of the present invention need to be converted into by rotatablely moving straight line dipping and heaving, the conventional type of belt drive that meets this condition is rack-and-gear transmission and pulley system transmission.Rack-and-gear transmission possesses the advantages such as positioning precision is high, transmitted power is large.But it also exists, cost of manufacture is high and long requires high defect apart from setting accuracy.Adopt pulley system transmission, although can not reach the higher transmission positioning precision that size rack-driving possesses, but the advantage such as that it possesses is simple in structure, and financial cost is lower, easy for installation.Based on the economy in principle of design, simplicity, and adjustable height positioning precision is without excessive demand etc., considers the merits and faults of rack-and-gear transmission and pulley system transmission, and the present invention selects the type of belt drive of fixed pulley drive system as system.Between fixed pulley system 8 and threephase asynchronous machine 2, adopt worm type of reduction gearing 3 to be connected.
Described truss structure comprises walking cardan wheel 5, base 6, adjustable supports leg 7, setting nut, companion ladder outside frame 9 and outer staircase 10.Described base 6 bottoms connect walking cardan wheel 5 and adjustable supports leg 7, and companion ladder outside frame 9 is installed on base 6 tops.Setting nut, for regulating the position of walking cardan wheel 5, is installed outer staircase 10 on companion ladder outside frame 9.
Described support section comprises that companion ladder inner frame 13, interior staircase 14, workplatform 15, platform leave plate 16 and fence, described fixed pulley system 8 is fixedly connected on companion ladder outside frame 9 and companion ladder inner frame 13, described interior staircase 14 is arranged in companion ladder inner frame 13, described companion ladder inner frame 13 top erection work platforms 15, the platform of opening or closing bottom described workplatform 15 comprises is opened plate 16 and circumferential fence.Preferably, the fence of described workplatform comprises narrow fence 17 and wide fence 18.
According to Human Engineering Principle, the design of service platform should, under the prerequisite of guarantee safety, be considered the operability of operating personal as far as possible, and should possess certain economy.Based on the consideration of some above, the design of comprehensive existing service platform, the service platform structure of design is as shown in Figure 6.When use, after staff reaches and reaches workplatform 16 by the interior staircase 14 on companion ladder inner frame 13, only need open platform opens plate 16, by wide fence 18, narrow fence 17 assemble fixing after, climb up workplatform 16, after platform is opened to plate 16 and locked, can start operation.Met simple and efficient to handle, and designing requirement simple in structure.
For improving the safety and reliability in insulated platform operating process, related reliability equipment should be set to improve the safety of insulated platform.This insulated platform has adopted limit switch 12, self-locking claw 11,23 these the three kinds of reliability designs of device identification system altogether.Described inhibiting device comprises limit switch 12 and self-locking claw 11, described limit switch 12 comprises and is arranged on the limit switch contact 12a of companion ladder outside frame 9 tops and is arranged on the limiting stopper 12b on companion ladder inner frame 13, described self-locking claw 11 is arranged on inner frame truss 24, can hook outside frame truss 25.Preferably, described inhibiting device also comprises device identification system 23, and described device identification system 23 is tetra-grooves of 4.5m, 5.0m, 5.5m, 6.0m that are inscribed on inner frame.
The effect of limit switch 12 is for preventing that insulated platform from exceeding the upward stroke of setting while rising.Limit switch 12 is arranged on companion ladder outside frame 9 tops, in the time that companion ladder inner frame 13 rises to end position, the limiting stopper 12b on companion ladder inner frame 13 touches limit switch contact 12a, and limit switch 12 moves and send signal, pressure stops motor running, and insulated platform stops rising.
Self-locking claw 11 is arranged on the truss of companion ladder inner frame 13, in the time that companion ladder inner frame 13 rises to a certain height, press the locking press button on remote controller, self-locking claw 11 starts effect, hook the truss on companion ladder outside frame 9, insulated platform is locked in to this height.When insulated platform declines, press the button that unlocks, 11 releases of self-locking claw, then press insulated platform decline button, insulated platform resets.The effect of self-locking claw 11 is for the position of locking insulated platform height, guarantees this height lower platform safety.
Device identification system 23 is to design for convenience of descending operation, and operating personal, in the time of manipulation insulated platform, can be known by device identification system 23 Real-time Feedbacks the instant liftable height of insulated platform, to facilitate altitude location.Height identification is inscribed on inner frame, total 4.5m, 5.0m, 5.5m, tetra-grooves of 6.0m.In the time that insulated platform rises, companion ladder inner frame 13 rises.When certain groove and companion ladder outside frame 9 upper ends are when concordant, show that insulated platform has risen to the indicated height of this groove.
In order to obtain better insulation effect, the agent structure material of described insulated platform is fiber glass epoxy.Traditional aerial platform is in order to ensure firmly, to stablize, normal steel structure or the aluminium alloy structure of adopting, but for security consideration, substation field has now banned use of metallic material device, therefore needing to select suitable platform timbering material is key point of the present invention, and need consider insulativity, portability, stability etc.
In numerous insulating materials, a kind of insulating material glass-felt plastic because of its excellent mechanical characteristics, good insulativity, corrosion stability, shop characteristic is good, designability good and the advantage such as economy preferably, be widely used in the middle of insulation fabric part.Density of material, tensile strength and strength-to-density ratio (pulling strengrth under unit intensity) the index contrast of itself and other structural metallic materials is as shown in table 1 below.
All kinds of physical construction density of material of table 1, tensile strength and strength-to-density ratio performance comparison
And based on its interior molecules structure and chemical composition, glass-felt plastic can be divided into again fiber glass epoxy, phenolic fiberglass reinforced plastics and fiberglass reinforced plastic.Density of material, tensile strength and the strength-to-density ratio of these three kinds of glass-felt plastics are as shown in table 2 below.
Density, tensile strength and the strength-to-density ratio performance comparison of three kinds of glass-felt plastics of table 2
Combination property based on these three kinds of glass-felt plastics and economy are considered, are selected the agent structure material of fiber glass epoxy as insulated platform.
Working process of the present invention is as follows:
Whole insulated platform after placing steadily struts four adjustable supports legs 7 of base, and turn setting nut, makes walking cardan wheel 5 built on stilts of base, and regulates whole insulated platform to complete level, can ensure complete level with bubble and scale.
Complete after above-mentioned steps, press the rising button of remote controller.Electromechanical control cabinet 1 is received signal, three phase asynchronous motor 2 starts forward, by worm type of reduction gearing 3 by transmission of power to volume Kun 4 on, volume Kun 4 reels the first pulley messenger chain 21 and the second pulley messenger chain 22, drives companion ladder inner frame 13 to rise by the fixed pulley system 8 being connected on companion ladder outside frame 9 and companion ladder inner frame 13.
Companion ladder inner frame 13 rises to after certain control position, presses remote controller stop button, and the self-locking claw 11 on companion ladder inner frame 13 starts effect, hooks on the truss on companion ladder outside frame 9, and companion ladder inner frame 13 is locked on certain altitude.
After highly regulating, service work personnel start to climb to companion ladder outside frame 9 upper ends along outer staircase 10, then climb up interior staircase 14.Climb to behind workplatform 15 positions, open platform and open plate 16, open plate 16 by platform and climb to workplatform 15 tops.Close and lock platform and open plate 16, start service work.
The aloft work insulated elevating platform of the present invention's design mainly possesses following technical characterstic:
1, model machine is easy and simple to handle, and adjustable height is higher, and height can reach 6m; Light small and exquisite, deadweight only has 100kg, bottom to be provided with walking cardan wheel 5, convenient carrying; Reliable in structure safety, has designed the device such as limit switch 12 and self-locking claw 11, has promoted the safety and reliability of operation.
2, insulating material glass-felt plastic is applied in the design of insulated elevating platform, has obtained good insulation preformance, good result that structural strength is high.
Volume of the present invention is small and exquisite, light, adopts small-sized storage battery car can load and unload, carry.When work, floor area is little, is applicable to narrow and small operating environment.It is material that agent structure has adopted glass-felt plastic, in possessing good insulativity, also has both lightweight, structural strength high.Simple in structure, adopt motor, worm type of reduction gearing 3 and directional pulley system 8 for the power drive system of combination, compared to existing hydraulic platform, greatly reduce cost.Design many places safety prevention measure, comprised adjustable supports leg 7, limit switch 12, self-locking claw 11 etc., greatly improved the safety control of operating personal.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is also not only confined to above-described embodiment, and all technical schemes belonging under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (6)

1. the light insulating station of aloft work, is characterized in that: described insulating station comprises motivation transfer motion part, truss structure, support section and inhibiting device, wherein:
Described motivation transfer motion part comprises remote controller, electromechanical control cabinet, motor, worm type of reduction gearing, volume Kun and fixed pulley system, between described volume Kun and motor, is connected by worm type of reduction gearing, and described volume Kun and fixed pulley system interconnect;
Described truss structure comprises walking cardan wheel, base, adjustable supports leg, setting nut, companion ladder outside frame and outer staircase, described base bottom connects walking cardan wheel and adjustable supports leg, companion ladder outside frame is installed on described base top, described setting nut, for regulating the position of walking cardan wheel, is installed outer staircase on described companion ladder outside frame;
Described support section comprises that companion ladder inner frame, interior staircase, workplatform, platform leave plate and fence, described fixed pulley system is fixedly connected on companion ladder outside frame and companion ladder inner frame, described interior staircase is arranged on companion ladder inner frame inside, described companion ladder inner frame top erection work platform, the platform of opening or closing bottom described workplatform comprises is opened plate and circumferential fence;
Described inhibiting device comprises limit switch and self-locking claw, described limit switch comprises and is arranged on the limit switch contact of outside frame top and is arranged on the limiting stopper on inner frame, described self-locking claw, described self-locking claw is arranged on companion ladder inner frame, can hook the truss of outside frame.
2. the light insulating station of aloft work according to claim 1, is characterized in that: described fixed pulley system comprises the first assembly pulley, the second assembly pulley, the first pulley messenger chain and the second pulley messenger chain; Described the first assembly pulley comprises with the second assembly pulley the pulley that number is identical; Described first pulley messenger chain one end connects volume Kun, and the other end is wound around the first assembly pulley; Described second pulley messenger chain one end connects volume Kun, and the other end is wound around the second assembly pulley; Described the first pulley messenger chain is identical with the canoe of the second pulley messenger chain.
3. the light insulating station of aloft work according to claim 1, is characterized in that: described motor is threephase asynchronous machine.
4. the light insulating station of aloft work according to claim 1, is characterized in that: described inhibiting device comprises device identification system, and described device identification system is tetra-grooves of 4.5m, 5.0m, 5.5m, 6.0m that are inscribed on inner frame.
5. the light insulating station of aloft work according to claim 1, is characterized in that: the agent structure material of described insulated platform is fiber glass epoxy.
6. the light insulating station of aloft work according to claim 1, is characterized in that: the fence of described workplatform comprises narrow fence and wide fence.
CN201410201822.6A 2014-05-14 2014-05-14 Light insulating platform for aloft work Pending CN104030201A (en)

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Application Number Priority Date Filing Date Title
CN201410201822.6A CN104030201A (en) 2014-05-14 2014-05-14 Light insulating platform for aloft work

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Application Number Priority Date Filing Date Title
CN201410201822.6A CN104030201A (en) 2014-05-14 2014-05-14 Light insulating platform for aloft work

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105591306A (en) * 2015-12-25 2016-05-18 南京南瑞继保电气有限公司 Inspection gallery
CN107762129A (en) * 2017-10-18 2018-03-06 北京城建长城建筑装饰工程有限公司 Furred ceiling hoisting frame
CN105201189B (en) * 2015-10-15 2018-04-13 江苏京龙工程机械有限公司 For construction lifting platform stop locking device
CN110065913A (en) * 2019-05-30 2019-07-30 北京瑞盈智拓科技发展有限公司 A kind of modular insulating overhead operating vehicle and high altitude operation method
CN112125248A (en) * 2020-09-22 2020-12-25 国网冀北电力有限公司检修分公司 Electric power operation vehicle and safety early warning system thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105201189B (en) * 2015-10-15 2018-04-13 江苏京龙工程机械有限公司 For construction lifting platform stop locking device
CN105591306A (en) * 2015-12-25 2016-05-18 南京南瑞继保电气有限公司 Inspection gallery
CN107762129A (en) * 2017-10-18 2018-03-06 北京城建长城建筑装饰工程有限公司 Furred ceiling hoisting frame
CN110065913A (en) * 2019-05-30 2019-07-30 北京瑞盈智拓科技发展有限公司 A kind of modular insulating overhead operating vehicle and high altitude operation method
CN112125248A (en) * 2020-09-22 2020-12-25 国网冀北电力有限公司检修分公司 Electric power operation vehicle and safety early warning system thereof
CN112125248B (en) * 2020-09-22 2022-11-18 国网冀北电力有限公司检修分公司 Electric power operation vehicle and safety early warning system thereof

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Application publication date: 20140910