CN106129776A - A kind of grounding device of anti-charged installation earth lead - Google Patents

A kind of grounding device of anti-charged installation earth lead Download PDF

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Publication number
CN106129776A
CN106129776A CN201610786295.9A CN201610786295A CN106129776A CN 106129776 A CN106129776 A CN 106129776A CN 201610786295 A CN201610786295 A CN 201610786295A CN 106129776 A CN106129776 A CN 106129776A
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CN
China
Prior art keywords
power transmission
transmission shaft
swivel nut
earth lead
rod
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
CN201610786295.9A
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Chinese (zh)
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CN106129776B (en
Inventor
景国明
刘长保
凌恩
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.)
Henan Power Transmission And Distribution Project Co Ltd
State Grid Corp of China SGCC
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Henan Power Transmission And Distribution Project Co Ltd
State Grid Corp of China SGCC
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.)
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Publication date
Application filed by Henan Power Transmission And Distribution Project Co Ltd, State Grid Corp of China SGCC filed Critical Henan Power Transmission And Distribution Project Co Ltd
Priority to CN201610786295.9A priority Critical patent/CN106129776B/en
Publication of CN106129776A publication Critical patent/CN106129776A/en
Application granted granted Critical
Publication of CN106129776B publication Critical patent/CN106129776B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/26Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

nullThe invention discloses the grounding device of a kind of anti-charged installation earth lead,Including the base being provided with walking mechanism、Power transmission shaft、Ratchet、The supporting frame being arranged on base and the ratchet being arranged on supporting frame,Described power transmission shaft is connected with supporting frame by cover for seat,Described ratchet is flexibly connected with power transmission shaft,Described power transmission shaft is provided with position limiting structure and friction component,One end of described power transmission shaft is provided with whim,The transverse arm of support frame as described above body be provided with for rope through fixed pulley,Rope free end on described whim is provided with balancing weight,Described base side is provided with the earthing rod fairlead being movably connected with the base,Described earthing rod connects electrostatic detector,Described electrostatic detector connects acousto-optic alarm,This device can quickly be grounded the accurate installation of post,Installation required time is short,Installation effectiveness is high,And it is easy to operate,Safe and reliable.

Description

A kind of grounding device of anti-charged installation earth lead
Technical field
The present invention relates to power equipment grounding technology field, be specifically related to the ground connection dress of a kind of anti-charged installation earth lead Put.
Background technology
Ground connection refers to power system and the outer conductive part of the neutral point of electric device, the exposed conductive part of electrical equipment and device Lease making is connected with the earth by conductor.In power system, a lot of in the case of earth lead must be installed could operate.Ground connection is installed Line has twolip from safety considerations, and it has the effect of trouble free service, but improper use also can produce damage effect.As Fruit live connection of ground wire accidentally, can cause personnel and electrical equipment harm, can cause serious pernicious electrical hazard.Earth lead connects Ground end, if contacting bad, can make service work personnel be in the working environment of danger.
Before mounting earth lead, needing to use electroscope electrical verification, the purpose of electrical verification is that confirmation scene has a power failure the most, disappears Except the human error stopping wrong electricity, do not have a power failure, prevent live connection of ground wire.But time have operator to use electric pressure not phase Symbol electroscope electrical verification or begin in the case of non-electrical verification other operation, the situation of both hanging earthing conductors is in basic unit More universal habitual act of violating regulations.
The ground connection end at electric power enterprise scene, simple in construction.Ground stud uses iron plate, and jack uses copper pipe, it The iron plate of contact site extremely get rusty easily, its earth resistance is unstable, and the biggest, does not meets technology requirement, often Lose protective effect, be substantially reduced the protective effect to interruption maintenance working site personnel, make staff be in the work of danger Make state.
To this end, the patent of invention of Publication No. 201510743884.4 proposes the ground connection of a kind of anti-charged installation earth lead Device, including body, the lower end of described body is provided with insertion end, is provided with more than four on the outer ring of described insertion end Lock banking stop, the outer ring of described insertion end is provided with the groove relative with described lock banking stop, and described lock banking stop is near described groove That side be provided with prerotation vane, described body be internally provided with gripper shoe, the plate face of described gripper shoe is provided with screw thread Hole, is combined with threaded rod in described screwed hole, and the lower end of described threaded rod is combined with the guide pad of taper, the top of described body Portion is provided with end, and the side of described body is provided with first end, is combined with and leads between described end and described first end Line, described wire extends to be combined with attracting thunder needle on that one end outside described end;This device in use, can be preferable With form non-removable connection between ground, it is to avoid stolen phenomenon occurs.The and for example open one of CN201510743906.7 The grounding device of anti-charged installation earth lead, including body, the lower end of described body is provided with insertion end, at described insertion end It is provided with the lock banking stop of more than four on outer ring, the outer ring of described insertion end is provided with the groove relative with described lock banking stop, Described lock banking stop is provided with prerotation vane near that side of described groove, described body be internally provided with gripper shoe, described Being provided with screwed hole on the plate face of fagging, be combined with threaded rod in described screwed hole, the lower end of described threaded rod is combined with cone The guide pad of shape, the top of described body is provided with end, and the side of described body is provided with first end, described end and institute Stating and be combined with wire between first end, described wire extends to be combined with attracting thunder needle on that one end outside described end.Make Used time, carry inconvenience, earthing rod is installed and still needs to expend a large amount of strength, leverage the installation effectiveness of equipment.
Summary of the invention
Problem to be solved by this invention is the above-mentioned deficiency overcoming prior art, it is provided that a kind of anti-charged installation earth lead Grounding device, this device can quickly be grounded the accurate installation of post, install required time short, and installation effectiveness is high, and behaviour Facilitate, safe and reliable.
For solving above-mentioned technical problem, the technical solution used in the present invention is: connecing of a kind of anti-charged installation earth lead Ground device, including being provided with the base of walking mechanism, power transmission shaft, ratchet, the supporting frame being arranged on base and being arranged on support Ratchet on support body, described power transmission shaft is connected with supporting frame by cover for seat, and described ratchet is flexibly connected with power transmission shaft, described biography Moving axis is provided with position limiting structure and friction component, and one end of described power transmission shaft is provided with whim, the transverse arm of support frame as described above body Be provided with for rope through fixed pulley, the rope free end on described whim is provided with balancing weight, described base side be provided with The earthing rod fairlead that base is flexibly connected, described earthing rod connects electrostatic detector, and described electrostatic detector connects sound Light crossing-signal.
Described earthing rod connects information acquisition device and GPRS module.
Described earthing rod is provided with blind hole, and described earthing rod is provided with the anti-theft hole connected with blind hole, in described anti-theft hole It is provided with block, in described blind hole, is provided with the drill rod driving block to be displaced outwardly.
Described drill rod upper end is provided with rectangle blind hole, and described power transmission shaft one end is provided with rectangular opening, described drill rod and power transmission shaftSoft PropertyTransmission.
Described Flexible Transmission is steel cable and the cuboid being arranged on steel cable two ends.
The longitudinal section of described drill rod is triangle.
Described friction component includes being sleeved on actuating swivel nut the most threaded on power transmission shaft, is arranged on power transmission shaft one end Prevent the clamp nut that actuating swivel nut exits and the friction damper being sleeved on power transmission shaft.
Described clamp nut side arranges groove.
Described walking mechanism is the Universal self-locking roller being arranged under base.
It is composed of the following components by weight for described friction damper: activated carbon 5~10 parts;Brown Alundum cashew shell oil Phenol-formaldehyde resin modified 8~12 parts;Diamond particles 15~25 parts;Acrylonitrile-butadiene rubber powder 15~25 parts;Polypropylene fibre 10~15 Part;Boron nitride 6~10 parts.
The using method of the grounding device of a kind of anti-charged installation earth lead, comprises the following steps:
1) base moving to earthing rod position to be installed, unclamp earthing rod and fix bolt, earthing rod contacts with ground;
2) rotating clockwise actuating swivel nut to be sling by balancing weight, rotate counterclockwise actuating swivel nut, now balancing weight is quickly to moving down Dynamic, pound on earthing rod;Again rotate clockwise actuating swivel nut to be sling by balancing weight, rotate counterclockwise actuating swivel nut, now join Pouring weight quickly moves down, and again pounds on earthing rod, until pounding earthing rod into ground;
3) now drill rod is put into blind hole, rotate clockwise actuating swivel nut and balancing weight is sling, rotate counterclockwise actuating swivel nut, this Time balancing weight quickly move down, pound on drill rod;Again rotate clockwise actuating swivel nut to be sling by balancing weight, rotate counterclockwise Actuating swivel nut, now balancing weight quickly moves down, and again pounds on drill rod, until pounding drill rod into earthing rod blind hole;To join Pouring weight takes off, and hangs on drill rod by the hook of rope end, rotates clockwise actuating swivel nut, is pulled out by drill rod.
The invention has the beneficial effects as follows: base only need to be moved to earthing rod position to be installed by the present invention, unclamps earthing rod Fixing bolt, earthing rod contacts with ground;Rotate clockwise actuating swivel nut to be sling by balancing weight, rotate counterclockwise actuating swivel nut 90 Degree, now balancing weight quickly moves down, and pounds on earthing rod;Again rotate clockwise actuating swivel nut to be sling by balancing weight, inverse Hour hands rotate actuating swivel nut 90 degree, and now balancing weight quickly moves down, and again pounds on earthing rod, until earthing rod pounded into Ground;Now drill rod is put into blind hole, rotate clockwise actuating swivel nut and balancing weight is sling, rotate counterclockwise actuating swivel nut 90 Degree, now balancing weight quickly moves down, and pounds on drill rod;Again rotate clockwise actuating swivel nut to be sling by balancing weight, the inverse time Pin rotates actuating swivel nut 90 degree, and now balancing weight quickly moves down, and again pounds on drill rod, until pounding drill rod into earthing rod Blind hole;Balancing weight is taken off, the hook of rope end is hung on drill rod, rotates clockwise actuating swivel nut, drill rod is pulled out.This dress Putting the accurate installation that can quickly be grounded post, install required time short, installation effectiveness is high, and easy to operate, safe and reliable.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of earthing rod of the present invention.
Fig. 2 is the structural representation of the present invention.
Detailed description of the invention
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
Embodiment one
As shown in Figure 1, 2, the grounding device of a kind of anti-charged installation earth lead, including being provided with the base 19 of walking mechanism, transmission Axle 1, ratchet 6, the supporting frame 2 being arranged on base and the ratchet 8 being arranged on supporting frame, ratchet 8 can pass through rotating shaft 10 are arranged on supporting frame 2, and described power transmission shaft is connected with supporting frame 2 by cover for seat 3, and described ratchet is with power transmission shaft activity even Connecing, power transmission shaft 1 is installed with bearing block by thrust bearing 11 and is connected, and power transmission shaft 1 is provided with position limiting structure 1-1 and friction component, Play position-limiting action when power transmission shaft moves right, wherein, described position limiting structure 1-1 is arranged on the load side of described cover for seat 3, institute Stating power transmission shaft and be provided with position limiting structure and friction component, one end of described power transmission shaft is provided with whim, support frame as described above body Transverse arm be provided with for rope through fixed pulley 23, rope 14 free end on described whim 12 is provided with balancing weight 15, the described end Seat side is provided with the earthing rod fairlead 30 being movably connected with the base, and described earthing rod connects electrostatic detector 25, described quiet Electro-detection instrument 25 connects acousto-optic alarm 26.
Described earthing rod connects information acquisition device and GPRS module, and described information acquisition device obtains detection information, and leads to Cross GPRS module to send to control centre.Electrostatic detector, when earth lead connects the binding post of drill steel, can pass through earth lead Extending to earthing clamp, sensing detection circuit is the most charged, and charged audible-visual annunciator is reported to the police, so that it is guaranteed that construction safety;Information Harvester obtains detection information, and is sent to control centre by GPRS module, along with increasing of circuit homework, can improve pipe The centralized management ability of reason personnel, grasp in detail management often group earth lead in storehouse state, circuit package situation, to guarantee information Real-time, interactive accurate, thus reduce the generation of all kinds of security incident.
Described earthing rod 30 is provided with blind hole, and described earthing rod is provided with the anti-theft hole 20 connected with blind hole, described antitheft It is provided with block 22 in hole 20, in described blind hole, is provided with the drill rod driving block to be displaced outwardly.
Described drill rod upper end is provided with rectangle blind hole, and described power transmission shaft one end is provided with rectangular opening, described drill rod 16 and power transmission shaft 1FlexibleTransmission.
Described Flexible Transmission is steel cable 27 and the cuboid 28 being arranged on steel cable two ends, and power transmission shaft drives steel cable to rotate, steel Rope band moves drill rod and rotates, and drill rod cross section is 5 distressed structures, after drill rod rotates, it is simple to pulled out by drill rod.
Described friction component includes being sleeved on actuating swivel nut 5 the most threaded on power transmission shaft, is arranged on power transmission shaft one End prevents the clamp nut 7 that actuating swivel nut exits and the friction damper 4 being sleeved on power transmission shaft.
Described clamp nut side arranges groove.
Described walking mechanism is the Universal self-locking roller being arranged under base.
Earthing rod fairlead is provided with earthing rod and fixes bolt, and earthing rod fairlead is stuck on base, treats that earthing rod is installed Behind ground, set can be directed to and take off.
The using method of the grounding device of a kind of anti-charged installation earth lead, comprises the following steps:
1) base moving to earthing rod position to be installed, unclamp earthing rod and fix bolt 24, earthing rod contacts with ground;
2) rotating clockwise actuating swivel nut to be sling by balancing weight, rotate counterclockwise actuating swivel nut, now balancing weight is quickly to moving down Dynamic, pound on earthing rod;Again rotate clockwise actuating swivel nut to be sling by balancing weight, rotate counterclockwise actuating swivel nut, now join Pouring weight quickly moves down, and again pounds on earthing rod, until pounding earthing rod into ground;
3) now drill rod is put into blind hole 21, rotates clockwise actuating swivel nut and balancing weight is sling, rotate counterclockwise actuating swivel nut, Now balancing weight quickly moves down, and pounds on drill rod;Again rotate clockwise actuating swivel nut to be sling by balancing weight, turn counterclockwise Dynamic actuating swivel nut, now balancing weight quickly moves down, and again pounds on drill rod, until pounding drill rod into earthing rod blind hole;Will Balancing weight takes off, and is hung on drill rod 16 by the hook 13 of rope end, rotates clockwise actuating swivel nut, is pulled out by drill rod.
Embodiment two
Described earthing rod is provided with drill rod fairlead 17, prevents from pounding partially, and what is more important is prevented from balancing weight and lands, and injures by a crashing object Other people.Earthing rod week, side was provided with movable cage plate 18, prevents balancing weight to land, injures other people by a crashing object.
Embodiment three
The longitudinal section of described drill rod is triangle, it is simple to ejected by block.
Embodiment four
Described actuating swivel nut is provided with rocking arm 9, rotates more laborsaving.
Embodiment five with the difference of embodiment four is: it is composed of the following components by weight for described friction damper: Activated carbon 5 parts;Brown Alundum cashew nut oil modified alkyd resin 8 parts;Diamond particles 15 parts;Acrylonitrile-butadiene rubber powder 15 parts;Polypropylene Fiber 10 parts;Boron nitride 6 parts.
Embodiment six with the difference of embodiment four is: it is composed of the following components by weight for described friction damper: Activated carbon 10 parts;Brown Alundum cashew nut oil modified alkyd resin 12 parts;Diamond particles 25 parts;Acrylonitrile-butadiene rubber powder 25 parts;Poly-third Alkene fiber 15 parts;Boron nitride 10 parts.
Embodiment seven with the difference of embodiment four is: it is composed of the following components by weight for described friction damper: Activated carbon 8 parts;Brown Alundum cashew nut oil modified alkyd resin 10 parts;Diamond particles 20 parts;Acrylonitrile-butadiene rubber powder 20 parts;Poly-third Alkene fiber 12 parts;Boron nitride 8 parts;Diamond uses diamond synthesis low price, and hardness is high.
Embodiment eight with the difference of embodiment seven is: embodiment eight uses friction material disclosed in CN201480061713.7 Material;Test through inventor, see table.
Above presently preferred embodiments of the present invention is described, so that principles and applications to be described, but should manage Solving, the present invention otherwise can realize on the basis of without departing from these principles.

Claims (10)

1. the grounding device of an anti-charged installation earth lead, it is characterised in that: include being provided with the base of walking mechanism, transmission Axle, ratchet, the supporting frame being arranged on base and the ratchet being arranged on supporting frame, described power transmission shaft is by cover for seat and props up Support body connects, and described ratchet is flexibly connected with power transmission shaft, and described power transmission shaft is provided with position limiting structure and friction component, described biography One end of moving axis is provided with whim, the transverse arm of support frame as described above body be provided with for rope through fixed pulley, described whim On rope free end be provided with balancing weight, described base side is provided with the earthing rod fairlead being movably connected with the base, described ground connection Post connects electrostatic detector, and described electrostatic detector connects acousto-optic alarm.
2. the grounding device of anti-charged installation earth lead as claimed in claim 1, it is characterised in that: described earthing rod connects to be had Information acquisition device and GPRS module.
3. the grounding device of anti-charged installation earth lead as claimed in claim 2, it is characterised in that: described earthing rod is provided with Blind hole, described earthing rod is provided with the anti-theft hole connected with blind hole, is provided with block in described anti-theft hole, is provided with and drives in described blind hole The drill rod that dynamic block is displaced outwardly.
4. the grounding device of anti-charged installation earth lead as claimed in claim 3, it is characterised in that: described drill rod upper end is provided with Rectangle blind hole, described power transmission shaft one end is provided with rectangular opening, described drill rod and power transmission shaftFlexibleTransmission.
5. the grounding device of anti-charged installation earth lead as claimed in claim 4, it is characterised in that: described Flexible Transmission is steel Rope and be arranged on the cuboid at steel cable two ends.
6. the grounding device of anti-charged installation earth lead as claimed in claim 5, it is characterised in that: the longitudinal section of described drill rod For triangle.
7. the grounding device of anti-charged installation earth lead as claimed in claim 6, it is characterised in that: described friction component includes It is sleeved on actuating swivel nut the most threaded on power transmission shaft, is arranged on the compression spiral shell that power transmission shaft one end prevents actuating swivel nut from exiting Friction damper that is female and that be sleeved on power transmission shaft.
8. the grounding device of anti-charged installation earth lead as claimed in claim 7, it is characterised in that: described clamp nut side Groove is set.
9. the grounding device of anti-charged installation earth lead as claimed in claim 8, it is characterised in that: described walking mechanism is for setting Put the Universal self-locking roller under base.
10. a using method for the grounding device of the anti-charged installation earth lead as described in any one of claim 1-9, it is special Levy and be: comprise the following steps:
1) base moving to earthing rod position to be installed, unclamp earthing rod and fix bolt, earthing rod contacts with ground;
2) rotating clockwise actuating swivel nut to be sling by balancing weight, rotate counterclockwise actuating swivel nut, now balancing weight is quickly to moving down Dynamic, pound on earthing rod;Again rotate clockwise actuating swivel nut to be sling by balancing weight, rotate counterclockwise actuating swivel nut, now join Pouring weight quickly moves down, and again pounds on earthing rod, until pounding earthing rod into ground;
3) now drill rod is put into blind hole, rotate clockwise actuating swivel nut and balancing weight is sling, rotate counterclockwise actuating swivel nut, this Time balancing weight quickly move down, pound on drill rod;Again rotate clockwise actuating swivel nut to be sling by balancing weight, rotate counterclockwise Actuating swivel nut, now balancing weight quickly moves down, and again pounds on drill rod, until pounding drill rod into earthing rod blind hole;To join Pouring weight takes off, and hangs on drill rod by the hook of rope end, rotates clockwise actuating swivel nut, is pulled out by drill rod.
CN201610786295.9A 2016-08-31 2016-08-31 A kind of earthing or grounding means of anti-electrification installation ground wire Active CN106129776B (en)

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CN201610786295.9A CN106129776B (en) 2016-08-31 2016-08-31 A kind of earthing or grounding means of anti-electrification installation ground wire

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108321561A (en) * 2018-01-03 2018-07-24 国家电网公司 A kind of built-in type spiral hanging earthing conductor device
CN108963477A (en) * 2018-07-23 2018-12-07 广东电网有限责任公司 A kind of 10kV cable puncture outfit
CN113782993A (en) * 2021-08-16 2021-12-10 湖北三江航天万峰科技发展有限公司 Grounding pole

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Publication number Priority date Publication date Assignee Title
CN2035747U (en) * 1988-07-17 1989-04-12 台安县机械厂 Portable hand lifting-cart
US6137049A (en) * 1998-08-03 2000-10-24 E & J Demark, Inc. Electrical ground connector assembly
CN201882804U (en) * 2010-12-06 2011-06-29 河南省电力公司濮阳供电公司 Hoisting tool for maintenance of electric power line
CN203406493U (en) * 2013-07-04 2014-01-22 天津二十冶建设有限公司 Earth electrode automatic hammer-in device
CN204012118U (en) * 2014-07-29 2014-12-10 国家电网公司 A kind of earth rod with vertically-guided function is installed power set
CN204012119U (en) * 2014-07-29 2014-12-10 国家电网公司 A kind of simple type earth electrode with automatic strike function is installed power set
CN104291224A (en) * 2014-09-24 2015-01-21 国家电网公司 Lifting double-locking hook rotation type mounting mechanism for electromechanical equipment in substation
CN105305197A (en) * 2014-07-29 2016-02-03 国网河南省电力公司漯河供电公司 Efficient ground rod installation power device having hitting force measuring function
CN105334376A (en) * 2015-11-09 2016-02-17 江苏省电力公司淮安供电公司 Electricity-proof intelligent grounding drilling rod

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2035747U (en) * 1988-07-17 1989-04-12 台安县机械厂 Portable hand lifting-cart
US6137049A (en) * 1998-08-03 2000-10-24 E & J Demark, Inc. Electrical ground connector assembly
CN201882804U (en) * 2010-12-06 2011-06-29 河南省电力公司濮阳供电公司 Hoisting tool for maintenance of electric power line
CN203406493U (en) * 2013-07-04 2014-01-22 天津二十冶建设有限公司 Earth electrode automatic hammer-in device
CN204012118U (en) * 2014-07-29 2014-12-10 国家电网公司 A kind of earth rod with vertically-guided function is installed power set
CN204012119U (en) * 2014-07-29 2014-12-10 国家电网公司 A kind of simple type earth electrode with automatic strike function is installed power set
CN105305197A (en) * 2014-07-29 2016-02-03 国网河南省电力公司漯河供电公司 Efficient ground rod installation power device having hitting force measuring function
CN104291224A (en) * 2014-09-24 2015-01-21 国家电网公司 Lifting double-locking hook rotation type mounting mechanism for electromechanical equipment in substation
CN105334376A (en) * 2015-11-09 2016-02-17 江苏省电力公司淮安供电公司 Electricity-proof intelligent grounding drilling rod

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108321561A (en) * 2018-01-03 2018-07-24 国家电网公司 A kind of built-in type spiral hanging earthing conductor device
CN108963477A (en) * 2018-07-23 2018-12-07 广东电网有限责任公司 A kind of 10kV cable puncture outfit
CN113782993A (en) * 2021-08-16 2021-12-10 湖北三江航天万峰科技发展有限公司 Grounding pole
CN113782993B (en) * 2021-08-16 2023-06-20 湖北三江航天万峰科技发展有限公司 Grounding column

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