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CN209210260U - A kind of boom hoisting applied to electric power tower equipment - Google Patents

A kind of boom hoisting applied to electric power tower equipment Download PDF

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Publication number
CN209210260U
CN209210260U CN201821911812.1U CN201821911812U CN209210260U CN 209210260 U CN209210260 U CN 209210260U CN 201821911812 U CN201821911812 U CN 201821911812U CN 209210260 U CN209210260 U CN 209210260U
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CN
China
Prior art keywords
rack
stock
motor
mutually
boom hoisting
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.)
Expired - Fee Related
Application number
CN201821911812.1U
Other languages
Chinese (zh)
Inventor
李丙全
刘永年
谷力孟
刘永强
周晓强
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.)
Hebei Quanvolt Electric Power Engineering Co Ltd
Original Assignee
Hebei Quanvolt Electric Power Engineering 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 Hebei Quanvolt Electric Power Engineering Co Ltd filed Critical Hebei Quanvolt Electric Power Engineering Co Ltd
Priority to CN201821911812.1U priority Critical patent/CN209210260U/en
Application granted granted Critical
Publication of CN209210260U publication Critical patent/CN209210260U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model proposes a kind of boom hoisting applied to electric power tower equipment, including fixed pulley, hoist engine, hanging basket component, fixed bracket assembly, battery are individual module, therefore convenient transportation, are easy to march into the arena;Additionally by fixed bracket assembly, so that hoist engine is mutually fixedly connected with electric power tower, to there is no concern that the weight of hoist engine is less than the weight of the Work tool and power equipment that hang liter in advance, and then it is light-weight not applicable to solve light-duty lifting appliance, heavy lifting equipment single operation is at high cost, be not easy to march into the arena and manpower hangs drawing and there is a problem of that great work intensity, efficiency are slow, security risk is high.

Description

A kind of boom hoisting applied to electric power tower equipment
Technical field
The utility model relates to lifting technology field, specially a kind of boom hoisting applied to electric power tower equipment.
Background technique
Electric power tower, the tower-like building such as trapezoidal or triangle, height are usually 25-40 meters, are steel frame construction.Electric power Steel tower is the critical facility of power department, and energy trolley wire simultaneously plays a part of to protect and support.The installation of electric power tower, maintenance and Maintenance is the important leverage of modern power systems operation and development.
All is much high-rise working during the installation, maintenance of electric power tower, it is therefore desirable to by required Work tool and Material is lifted to high-rise working point, so that the effect of lifting appliance is particularly important.
Balance line, attachment in high-rise working are installed, Work tool needed for wire jumper installation and material weight are than heavier, And its weight is more than the weight of light-duty lifting appliance at present on the market, and the above-mentioned eminence that is not suitable for of light-duty lifting appliance is caused to make Industry.
In addition, many electric power towers are located in farmland or on the hillside that topography is rugged, to cause heavy lifting equipment It is difficult to enter operating location, landform limitation into operating location because of operating location is difficult to organize work;Along with upper The activity duration for stating high-rise working is shorter, using the single operation higher cost of heavy lifting equipment.
To sum up, Work tool and material needed for current above-mentioned high-rise working generally use manpower by outfit and material It hangs toward high-rise working point.But great work intensity, the efficiency that manpower lifting need to lift by crane are slower, and in addition manpower pull-up weight belongs to shakiness Determine state, security risk is high, will result in personal injury or tool materials damage causes direct economic loss once out of control.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of boom hoisting applied to electric power tower equipment, It solves to go out during the lifting of required Work tool and material in balance line, attachment installation, wire jumper installation equal-height position operation Existing light-duty lifting appliance is light-weight not applicable, and heavy lifting equipment single operation is at high cost, be not easy to march into the arena and manpower hangs drawing There is a problem of that great work intensity, efficiency are slow, security risk is high.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs: one kind being applied to electric power tower The boom hoisting of equipment, including,
Fixed pulley is fixed on the high altitude operation point of electric power tower;
Hoist engine, including rack, and the motor fixing seat in the rack, bearing block, motor, steel wire rack, it is described Motor fixing seat is mutually fixedly connected with the rack, and motor hole is offered in the motor fixing seat, the bearing block and institute State rack to be mutually fixedly connected, offer bearing hole on the bearing block, be equipped with bearing in the bearing hole, the motor with it is described Motor fixing seat is mutually fixedly connected, and the rotary shaft of the motor passes through one of the motor hole by shaft coupling with the steel wire rack End is connected, and the other end of the steel wire rack is mutually flexibly connected with the bearing, and the steel wire rack is equipped with wirerope, the steel Cord is wound on the steel wire rack, and one end of the wirerope passes through the fixed pulley and is equipped with hanging ring;
Hanging basket component, including hanging basket ontology, rope, suspension hook fixing seat, the hanging basket ontology are cuboid framework structure, are used In placing the Work tool and power equipment for hanging rise in advance, described rope one end is mutually fixedly connected with the hanging basket ontology, the rope The other end is mutually fixedly connected with the suspension hook fixing seat, and the suspension hook fixing seat is equipped with suspension hook, and the suspension hook is hooked in described On hanging ring;
Fixed bracket assembly, with the hoist engine be detachably connected, the fixed bracket assembly include stock, quarter butt, Fixture, the stock are mutually flexibly connected by bolt with the rack, and the quarter butt is located at the end of the stock, and passes through spiral shell Bolt is mutually flexibly connected with the stock, and the fixture is fixed on the outside of the quarter butt, and the fixture is for clamping the electric power Steel tower;
Control assembly, including PLC controller, the PLC controller are fixed on the motor, and the PLC is controlled Device is mutually electrically connected by connecting line with the motor;
Battery, for providing power for the motor, the battery is mutually electric with the PLC controller by connecting line Property connection.
Further, the central axes in the motor hole and the central axes of the bearing hole coincide.
Further, the hoist engine further includes wheel, and the quantity of the wheel is four, is individually fixed under the rack The four corners of side.
Further, the hoist engine further includes pull ring, and the pull ring is fixed on the left or right side of the rack.
Further, the stock is made of preceding stock and rear stock, before the preceding stock is by bolt and the rack Side is mutually flexibly connected, and the rear stock is mutually flexibly connected by bolt with the rear side of the rack.
Further, the quarter butt is made of left quarter butt and right quarter butt, the both ends of the left quarter butt by bolt respectively with institute Before stating the left end of stock with it is described after the left end of stock be mutually flexibly connected, the both ends of the right quarter butt by bolt respectively with it is described The right end of preceding stock is mutually flexibly connected with the right end of the rear stock.
Further, the fixture is made of left fixture and right fixture, and it is short that the left fixture is fixed by bolts in the left side The outside of bar, the right fixture are fixed by bolts in the outside of the right quarter butt.
Further, the control assembly further includes derailing switch, rectifier converters, the derailing switch by connecting line with it is described PLC controller is mutually electrically connected.
Further, the boom hoisting further includes several pieces of solar panels, and the solar panels are rectified by connecting line Transition components are mutually electrically connected with the PLC controller.
(3) beneficial effect
The utility model provides a kind of boom hoisting applied to electric power tower equipment, have compared with prior art with It is lower the utility model has the advantages that
(1) fixed pulley in the utility model, hoist engine, hanging basket component, fixed bracket assembly, battery are individual Module, therefore convenient transportation, be easy to march into the arena;Additionally by fixed bracket assembly, so that hoist engine is with electric power tower, mutually fixation connects It connects, to and then be solved light-duty there is no concern that the weight of hoist engine is less than the weight for hanging the Work tool and power equipment that rise in advance Lifting appliance is light-weight not applicable, and heavy lifting equipment single operation is at high cost, be not easy to march into the arena and manpower hangs drawing there are work The problem that intensity is big, efficiency is slow, security risk is high.
(2) hanging basket ontology is used to place the pre- Work tool and power equipment for hanging and rising in the utility model, to reduce The accidental falling probability of Work tool and power equipment during lifting, avoids because the accidental falling of Work tool and power equipment is led The personal injury and loss of material of cause.
(3) hoist engine in the utility model greatly facilitates the transport of hoist engine, in fact by adding wheel and pull ring Having showed can be by hoist engine roping to operating location by one or two operators.
(4) the fixation bracket in the utility model is made of dismountable stock and quarter butt, and detachable structure is greatly local Transport.
(5) battery in the utility model is separated with hoist engine, is mitigated by battery diesel oil substitute machine Weight, convenient transportation.
(6) solar panels in the utility model can to charge the battery, to solve the charging of field battery not Convenient problem.
Detailed description of the invention
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail It describes in detail bright as after.
Fig. 1 is the structure chart of boom hoisting in specific embodiment;
Fig. 2 is the structure chart of hoist engine in specific embodiment;
Fig. 3 is the structure chart of fixed bracket assembly in specific embodiment;
Fig. 4 is the structure chart of hanging basket component in specific embodiment;
Fig. 5 is the circuit diagram of boom hoisting in specific embodiment;
Marginal data: 1- fixed pulley;2- hoist engine;21- rack;22- motor fixing seat;23- bearing block;231- bearing; 24- motor;25- steel wire rack;251- wirerope;26- hanging ring;27- wheel;28- pull ring;3- hanging basket component;31- hanging basket ontology; 32- rope;33- suspension hook fixing seat;34- suspension hook;4- fixed bracket assembly;41- stock;Stock before 411-;Stock after 412-; 42- quarter butt;The left quarter butt of 421-;The right quarter butt of 422-;43- fixture;The left fixture of 431-;The right fixture of 432-;5- control assembly;51-PLC Controller;52- derailing switch;53- rectifier converters;6- battery;7- solar panels.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, fall within the protection scope of the utility model.In addition, hereafter for convenience, institute The "upper" of reference, "lower", "left", "right" are equal to that the directions such as the upper and lower, left and right of attached drawing itself are consistent, " first " hereinafter, " second " etc. is to be distinguish in description, and there is no other particular meanings.
Aiming at the problems existing in the prior art, the utility model provides a kind of lifting applied to electric power tower equipment It sets, as shown in Figs. 1-5, including fixed pulley 1, hoist engine 2, hanging basket component 3, fixed bracket assembly 4, control assembly 5, battery 6, It is described as follows:
(1) fixed pulley
As shown in Figure 1, fixed pulley 1, is fixed on the high altitude operation point of electric power tower.
In concrete application scene, the supporting power of fixed pulley 1 is not less than 800kg, fixed pulley 1 include wheel, pulley bracket, The thickness of pulley U-bolt, pulley bracket is not less than 4mm;Wheel is mutually flexibly connected by pulley spindle with the pulley bracket, is taken turns The diameter of son is not less than 95mm, and the width of wheel is not less than 31mm, the U-shaped structure in the cross section of wheel or V-structure or H-type knot Structure;Pulley bracket and electric power tower are fixed together by pulley U-bolt, and the quantity of pulley U-bolt is not less than 2.
(2) hoist engine
As shown in Fig. 2, hoist engine 2, including rack 21, and the motor fixing seat 22 in the rack 21, bearing block 23, motor 24, steel wire rack 25, the motor fixing seat 22 is fixedly connected with 21 phase of rack, and the motor fixing seat 22 On offer motor hole, the bearing block 23 is fixedly connected with 21 phase of rack, offer bearing hole on the bearing block 23, Bearing is equipped in the bearing hole, the motor 24 is fixedly connected with 22 phase of motor fixing seat, the rotation of the motor 24 Axis passes through the motor hole and is connected by shaft coupling with one end of the steel wire rack 25, the other end of the steel wire rack 25 and institute It states bearing to be mutually flexibly connected, the steel wire rack 25 is equipped with wirerope 251, and the wirerope 251 is wound in the steel wire rack 25 On, one end of the wirerope 251 passes through the fixed pulley 1 and is equipped with hanging ring 26.
In concrete application scene, 24 power of motor is not less than 2.2 kilowatts, is processed inside motor 24 using pure red copper material It forms, therefore the motor 24 has the advantages that conductivity is high, work efficiency is high, longevity of service, long service life.
Wherein, the diameter of wirerope 251 is not less than 6.2mm, and wirerope 251 is bifilar synthesis.
Further, the central axes in the motor hole and the central axes of the bearing hole coincide.
Further, as shown in figure 3, the hoist engine 2 further includes wheel 27, the quantity of the wheel 27 is four, respectively It is fixed on the four corners of 21 downside of rack.
In concrete application scene, wheel 27 is formed using duplex bearing and TPR rubber processing, therefore wheel 27 is with resistance to Mill, pressure resistance and resistance to heavy advantage are suitable for using in field.
Further, as shown in Fig. 2, the hoist engine 2 further includes pull ring 28, the pull ring 28 is fixed on the rack 21 Left or right side.
(3) hanging basket component
As shown in figure 4, hanging basket component 3, including hanging basket ontology 31, rope 32, suspension hook fixing seat 33, the hanging basket ontology 31 For cuboid framework structure, pre- the Work tool and power equipment that rise, described 32 one end of rope and the hanging basket sheet are hung for placing 31 phase of body is fixedly connected, and 32 other end of rope is fixedly connected with 33 phase of suspension hook fixing seat, the suspension hook fixing seat 33 It is equipped with suspension hook 34, the suspension hook 34 is hooked on the hanging ring 26.
(4) fixed bracket assembly
As shown in figure 3, fixed bracket assembly 4, is to be detachably connected with the hoist engine 2, the fixed bracket assembly 4 wraps Stock 41, quarter butt 42, fixture 43 are included, the stock 41 is flexibly connected by bolt with 21 phase of rack, the quarter butt 42 It is flexibly connected in the end of the stock 41, and by bolt with 41 phase of stock, the fixture 43 is fixed on the quarter butt 42 outside, the fixture 43 is for clamping the electric power tower.
In concrete application scene, the material of stock 41 and quarter butt 42 is heavy wall square tube, and wall thickness is not less than 3.5mm.
Further, as shown in figure 3, the stock 41 is made of preceding stock 411 and rear stock 412, the preceding stock 411 is logical It crosses bolt to be mutually flexibly connected with the front side of the rack 21, the rear stock 412 passes through the rear side phase of bolt and the rack 21 It is flexibly connected.
Further, as shown in figure 3, the quarter butt 42 is made of left quarter butt 421 and right quarter butt 422, the left quarter butt 421 Both ends are mutually flexibly connected with the left end of the left end of the preceding stock 411 and the rear stock 412 respectively by bolt, and the right side is short The both ends of bar 422 are mutually flexibly connected with the right end of the right end of the preceding stock 411 and the rear stock 412 respectively by bolt.
Further, as shown in figure 3, the fixture 43 is made of left fixture 431 and right fixture 432, the left fixture 431 is logical The outside that bolt is fixed on the left quarter butt 421 is crossed, the right fixture 432 is fixed by bolts in the outer of the right quarter butt 422 Side.
(5) control assembly
Control assembly 5, including PLC controller 51, as shown in Fig. 2, the PLC controller 51 is fixed on the motor 24 On, as shown in figure 5, and the PLC controller 51 be electrically connected with 24 phase of motor by connecting line.
Further, as shown in figure 5, the control assembly 5 further includes derailing switch 52, rectifier converters 53, the derailing switch 52 are electrically connected by connecting line with 51 phase of PLC controller.
Further, as shown in figure 5, the boom hoisting further includes several pieces of solar panels 7, the solar panels 7 pass through The rectified transition components of connecting line are electrically connected with 51 phase of PLC controller.
(6) battery
As shown in figure 5, battery 6, for providing power for the motor 24, the battery 6 passes through connecting line and institute State the electric connection of 51 phase of PLC controller.
The utility model provides a kind of boom hoisting applied to electric power tower equipment, have compared with prior art with It is lower the utility model has the advantages that
(1) fixed pulley 1 in the utility model, hoist engine 2, hanging basket component 3, fixed bracket assembly 4, battery 6 are Individual module, therefore convenient transportation, be easy to march into the arena;Additionally by fixed bracket assembly 4, so that hoist engine 2 and electric power tower It is mutually fixedly connected, so that there is no concern that the weight of hoist engine 2 is less than the weight for hanging the Work tool and power equipment that rise in advance, and then solution Light-duty lifting appliance of having determined is light-weight not applicable, and heavy lifting equipment single operation is at high cost, be not easy to march into the arena and manpower hangs drawing There is a problem of that great work intensity, efficiency are slow, security risk is high.
(2) hanging basket ontology 31 is used to place the pre- Work tool and power equipment for hanging and rising in the utility model, to reduce The accidental falling probability of Work tool and power equipment during lifting, avoids the accidental falling because of Work tool and power equipment Caused personal injury and loss of material.
(3) hoist engine 2 in the utility model greatly facilitates hoist engine 2 by adding wheel 27 and pull ring 28 Transport, realizing can be by 2 roping of hoist engine to operating location by one or two operators.
(4) the fixation bracket in the utility model is made of dismountable stock 41 and quarter butt 42, and detachable structure is very big Ground facilitates transport.
(5) battery 6 in the utility model is separated with hoist engine 2, is subtracted by 6 diesel oil substitute machine of battery Light weight, convenient transportation.
(6) solar panels 7 in the utility model can charge for battery 6, to solve the charging of field battery 6 Inconvenient problem.
It will be appreciated by those skilled in the art that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, module in attached drawing or Process is not necessarily implemented necessary to the utility model.
It will be appreciated by those skilled in the art that the module in device in implement scene can be described according to implement scene into Row is distributed in the device of implement scene, can also be carried out corresponding change and is located at the one or more dresses for being different from this implement scene In setting.The module of above-mentioned implement scene can be merged into a module, can also be further split into multiple submodule.
Disclosed above is only the specific implementation scene of the utility model, and still, the utility model is not limited to this, any this field Technical staff can think variation should all fall into the protection scope of the utility model.

Claims (9)

1. a kind of boom hoisting applied to electric power tower equipment, including,
Fixed pulley (1) is fixed on the high altitude operation point of electric power tower;
It is characterized in that, hoist engine (2), including rack (21), and the motor fixing seat (22) on the rack (21), axis Seat (23), motor (24), steel wire rack (25) are held, the motor fixing seat (22) is mutually fixedly connected with the rack (21), and institute It states and offers motor hole on motor fixing seat (22), the bearing block (23) is mutually fixedly connected with the rack (21), the axis It holds and offers bearing hole on seat (23), be equipped with bearing in the bearing hole, the motor (24) and the motor fixing seat (22) It is mutually fixedly connected, the rotary shaft of the motor (24) passes through one end that the motor hole passes through shaft coupling and the steel wire rack (25) It is connected, the other end of the steel wire rack (25) is mutually flexibly connected with the bearing, and the steel wire rack (25) is equipped with wirerope (251), the wirerope (251) is wound on the steel wire rack (25), and cunning is determined across described in one end of the wirerope (251) It takes turns (1) and is equipped with hanging ring (26);
Hanging basket component (3), including hanging basket ontology (31), rope (32), suspension hook fixing seat (33), the hanging basket ontology (31) are length Cube frame structure, for placing the pre- Work tool and power equipment for hanging liter, described rope (32) one end and the hanging basket ontology (31) it is mutually fixedly connected, rope (32) other end is mutually fixedly connected with the suspension hook fixing seat (33), and the suspension hook is fixed Seat (33) is equipped with suspension hook (34), and the suspension hook (34) is hooked on the hanging ring (26);
Fixed bracket assembly (4) is to be detachably connected with the hoist engine (2), and the fixed bracket assembly (4) includes stock (41), quarter butt (42), fixture (43), the stock (41) are mutually flexibly connected by bolt with the rack (21), the quarter butt (42) it is located at the end of the stock (41), and is mutually flexibly connected by bolt with the stock (41), the fixture (43) is solid Due to the outside of the quarter butt (42), the fixture (43) is for clamping the electric power tower;
Control assembly (5), including PLC controller (51), the PLC controller (51) are fixed on the motor (24), and The PLC controller (51) is mutually electrically connected by connecting line with the motor (24);
Battery (6), for providing power for the motor (24), the battery (6) is controlled by connecting line and the PLC Device (51) is mutually electrically connected.
2. boom hoisting as described in claim 1, which is characterized in that in the central axes in the motor hole and the bearing hole Axis coincides.
3. boom hoisting as described in claim 1, which is characterized in that the hoist engine (2) further includes wheel (27), the vehicle The quantity for taking turns (27) is four, the four corners being individually fixed on the downside of the rack (21).
4. boom hoisting as described in claim 1, which is characterized in that the hoist engine (2) further includes pull ring (28), the drawing Ring (28) is fixed on the left or right side of the rack (21).
5. boom hoisting as described in claim 1, which is characterized in that the stock (41) is by preceding stock (411) and rear stock (412) it forms, the preceding stock (411) is mutually flexibly connected by bolt with the front side of the rack (21), the rear stock (412) it is mutually flexibly connected by bolt with the rear side of the rack (21).
6. boom hoisting as claimed in claim 5, which is characterized in that the quarter butt (42) is by left quarter butt (421) and right quarter butt (422) form, the both ends of the left quarter butt (421) by bolt respectively with the left end of the preceding stock (411) and it is described after it is long The left end of bar (412) is mutually flexibly connected, the both ends of the right quarter butt (422) by bolt respectively with the preceding stock (411) Right end is mutually flexibly connected with the right end of the rear stock (412).
7. boom hoisting as claimed in claim 6, which is characterized in that the fixture (43) is by left fixture (431) and right fixture (432) it forms, the left fixture (431) is fixed by bolts in the outside of the left quarter butt (421), the right fixture (432) It is fixed by bolts in the outside of the right quarter butt (422).
8. boom hoisting as described in claim 1, which is characterized in that the control assembly (5) further includes derailing switch (52), whole Stream transformer (53), the derailing switch (52) are mutually electrically connected by connecting line with the PLC controller (51).
9. boom hoisting as claimed in claim 8, which is characterized in that the boom hoisting further includes several pieces of solar panels (7), the solar panels (7) are mutually electrically connected by the rectified transition components of connecting line with the PLC controller (51).
CN201821911812.1U 2018-11-20 2018-11-20 A kind of boom hoisting applied to electric power tower equipment Expired - Fee Related CN209210260U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821911812.1U CN209210260U (en) 2018-11-20 2018-11-20 A kind of boom hoisting applied to electric power tower equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821911812.1U CN209210260U (en) 2018-11-20 2018-11-20 A kind of boom hoisting applied to electric power tower equipment

Publications (1)

Publication Number Publication Date
CN209210260U true CN209210260U (en) 2019-08-06

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110803660A (en) * 2019-10-24 2020-02-18 国网河南省电力公司鄢陵县供电公司 Construction material and instrument hoisting device for electric power iron tower
CN110921582A (en) * 2019-11-29 2020-03-27 国网山东省电力公司枣庄供电公司 High-altitude hanging platform for power distribution maintenance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110803660A (en) * 2019-10-24 2020-02-18 国网河南省电力公司鄢陵县供电公司 Construction material and instrument hoisting device for electric power iron tower
CN110921582A (en) * 2019-11-29 2020-03-27 国网山东省电力公司枣庄供电公司 High-altitude hanging platform for power distribution maintenance
CN110921582B (en) * 2019-11-29 2021-05-07 国网山东省电力公司枣庄供电公司 High-altitude hanging platform for power distribution maintenance

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Granted publication date: 20190806

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