CN106207514B - A kind of electric power grounding device - Google Patents

A kind of electric power grounding device Download PDF

Info

Publication number
CN106207514B
CN106207514B CN201610786367.XA CN201610786367A CN106207514B CN 106207514 B CN106207514 B CN 106207514B CN 201610786367 A CN201610786367 A CN 201610786367A CN 106207514 B CN106207514 B CN 106207514B
Authority
CN
China
Prior art keywords
rod
swivel nut
transmission shaft
electric power
clump weight
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.)
Active
Application number
CN201610786367.XA
Other languages
Chinese (zh)
Other versions
CN106207514A (en
Inventor
程凤鸣
张辉
狄京元
焦岩
陈荣阁
安刚
刑红卫
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.)
LUOHE POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER Co Ltd
Original Assignee
LUOHE POWER SUPPLY COMPANY STATE GRID HENAN 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 LUOHE POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER Co Ltd filed Critical LUOHE POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER Co Ltd
Priority to CN201610786367.XA priority Critical patent/CN106207514B/en
Publication of CN106207514A publication Critical patent/CN106207514A/en
Application granted granted Critical
Publication of CN106207514B publication Critical patent/CN106207514B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/66Connections with the terrestrial mass, e.g. earth plate, earth pin
    • 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

Landscapes

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

Abstract

The invention discloses a kind of electric power grounding devices, pedestal including being equipped with walking mechanism, transmission shaft, ratchet, the supporting frame being set on the base and the pawl being mounted on supporting frame, the transmission shaft is connect by cover for seat with supporting frame, the ratchet is flexibly connected with transmission shaft, the transmission shaft is equipped with position limiting structure and friction component, one end of the transmission shaft is equipped with whim, the transverse arm of support frame as described above body be equipped with for restrict across fixed pulley, rope free end on the whim is equipped with clump weight, the pedestal side is equipped with the earthing rod guide sleeve being movably connected with the base, the device can fast implement the accurate installation of earthing rod, installation time is short, installation effectiveness is high, and it is easy to operate, securely and reliably.

Description

A kind of electric power grounding device
Technical field
The present invention relates to power equipment grounding technology fields, and in particular to a kind of electric power grounding device.
Background technique
Electric power transmission line and relevant device many places are easy to be struck by lightning in outdoor, the line tripping as caused by lightning stroke The case where frequent occurrence.It in order to anti-lightning strike, needs to give transmission line of electricity installation earthing or grounding means, electric current that lightning stroke generates is directed into greatly Ground avoids conducting wire or transmission facility by the damage of lightning voltage.Earthing or grounding means needs reliable ground connection, generallys use metallic The ground stud on ground.Ground stud is that but since ground stud capacity is pulled out, often there is ground stud quilt by external force hammer driven ground The case where robber, the operation bring insecurity factor of line route, and also stolen ground stud is needed by service personnel's periodic inspection And be reinstalled, make maintenance cost height.
For this purpose, the patent of invention of Publication No. 201510743884.4 proposes a kind of electric power grounding device, including ontology, The lower end of the ontology is provided with insertion end, and more than four lock banking stops are provided on the outer ring of the insertion end, described to insert Enter and be provided with the through slot opposite with the lock banking stop on the outer ring at end, the lock banking stop is provided with close to that side of the through slot Guide pin, the ontology are internally provided with support plate, threaded hole are provided in the plate face of the support plate, in the threaded hole It is inside combined with threaded rod, the lower end of the threaded rod is combined with the guide pad of taper, and end, institute are provided at the top of the ontology The side for stating ontology is provided with first end, and conducting wire is combined between the end and the first end, and the conducting wire extends Attracting thunder needle is combined on that one end outside to the end;The present apparatus when in use, can be formed preferably between ground Non-removable connection avoids stolen phenomenon from occurring.For another example CN201510743906.7 discloses a kind of electric power grounding device, packet Ontology is included, the lower end of the ontology is provided with insertion end, more than four lock banking stops are provided on the outer ring of the insertion end, The through slot opposite with the lock banking stop is provided on the outer ring of the insertion end, the lock banking stop is close to that side of the through slot It is provided with guide pin, the ontology is internally provided with support plate, threaded hole is provided in the plate face of the support plate, described Threaded rod is combined in threaded hole, the lower end of the threaded rod is combined with the guide pad of taper, is provided at the top of the ontology End, the side of the ontology are provided with first end, and conducting wire is combined between the end and the first end, described to lead Line extends on that one end outside the end and is combined with attracting thunder needle.In use, inconvenient to carry, installation earthing rod still needs to consume Take a large amount of strength, leverages the installation effectiveness of equipment.
Summary of the invention
Problem to be solved by this invention is to overcome the above-mentioned deficiency of the prior art, provides a kind of electric power grounding device, should Device can fast implement the accurate installation of earthing rod, and installation time is short, and installation effectiveness is high, and easy to operate, safely may be used It leans on.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:A kind of electric power grounding device, including be equipped with Pedestal, transmission shaft, ratchet, the supporting frame being set on the base and the pawl being mounted on supporting frame of walking mechanism, institute It states transmission shaft to connect by cover for seat with supporting frame, the ratchet is flexibly connected with transmission shaft, and the transmission shaft is equipped with limit Structure and friction component, one end of the transmission shaft are equipped with whim, the transverse arm of support frame as described above body be equipped with for rope across Fixed pulley, the rope free end on the whim is equipped with clump weight, and the pedestal side, which is equipped with, to be movably connected with the base Earthing rod guide sleeve, the pedestal are equipped with righting guiding mechanism.
The righting guiding mechanism includes the telescopic rod being set on the base, is sleeved on holding out against spring and set on telescopic rod Set the righting body being sleeved on earthing rod in telescopic rod free end.
The earthing rod is equipped with blind hole, and the earthing rod is equipped with the anti-theft hole that is connected to blind hole, in the anti-theft hole The drill rod that driving block is displaced outwardly is equipped with equipped with block, in the blind hole.
The longitudal section of the drill rod is triangle.
The friction component includes being sleeved on the actuating swivel nut being threadedly coupled therewith on transmission shaft, being arranged in transmission shaft one end The clamp nut for preventing actuating swivel nut from exiting and the friction damper being sleeved on transmission shaft.
Groove is arranged in the clamp nut side.
The walking mechanism is the Universal self-locking idler wheel being arranged under pedestal.
Its is composed of the following components by weight for the friction damper:5~10 parts of active carbon;Brown Alundum cashew nut shell oil 8~12 parts of phenol-formaldehyde resin modified;15~25 parts of diamond particles;15~25 parts of acrylonitrile-butadiene rubber powder;Polypropylene fibre 10~15 Part;6~10 parts of boron nitride.
A kind of application method of electric power grounding device, includes the following steps:
1)Pedestal is moved to earthing rod position to be installed, unclamps earthing rod fixing bolt, earthing rod and ground face contact;
2)Rotate clockwise actuating swivel nut to sling clump weight, rotate counterclockwise actuating swivel nut, at this time clump weight quickly to Lower movement, is pounded on earthing rod;Actuating swivel nut is rotated clockwise again to sling clump weight, rotates counterclockwise actuating swivel nut, this When clump weight quickly move down, pound on earthing rod, pound until by earthing rod into ground again;
3)Drill rod is put into blind hole at this time, actuating swivel nut is rotated clockwise and slings clump weight, rotate counterclockwise actuating spiral shell Set, clump weight quickly moves down at this time, pounds on drill rod;It rotates clockwise actuating swivel nut again to sling clump weight, the inverse time Needle rotates actuating swivel nut, and clump weight quickly moves down at this time, pounds on drill rod again, blind into earthing rod until pounding drill rod Hole;Clump weight is removed, the hook for end of restricting is hung on drill rod, actuating swivel nut is rotated clockwise, drill rod is pulled out.
The beneficial effects of the invention are as follows:Pedestal need to be only moved to earthing rod position to be installed by the present invention, unclamp earthing rod Fixing bolt, earthing rod and ground face contact;It rotates clockwise actuating swivel nut to sling clump weight, rotates counterclockwise actuating swivel nut 90 Degree, clump weight quickly moves down at this time, pounds on earthing rod;Actuating swivel nut is rotated clockwise again to sling clump weight, it is inverse Hour hands rotate 90 degree of actuating swivel nut, clump weight quickly moves down at this time, pound on earthing rod again, until by earthing rod pound into Ground;Drill rod is put into blind hole at this time, actuating swivel nut is rotated clockwise and slings clump weight, rotate counterclockwise actuating swivel nut 90 Degree, clump weight quickly moves down at this time, pounds on drill rod;It rotates clockwise actuating swivel nut again to sling clump weight, the inverse time Needle rotates 90 degree of actuating swivel nut, and clump weight quickly moves down at this time, pounds on drill rod again, pounds until by drill rod into earthing rod Blind hole;Clump weight is removed, the hook for end of restricting is hung on drill rod, actuating swivel nut is rotated clockwise, drill rod is pulled out.The dress The accurate installation that can fast implement earthing rod is set, installation time is short, and installation effectiveness is high, and easy to operate, securely and reliably.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Embodiment one
As shown in Figure 1, a kind of electric power grounding device, including being equipped with the pedestal 19 of walking mechanism, transmission shaft 1, ratchet 6, setting The pawl 8 setting the supporting frame 2 on pedestal and being mounted on supporting frame, pawl 8 can be mounted on support by shaft 10 On frame body 2, the transmission shaft is connect by cover for seat 3 with supporting frame 2, and the ratchet is flexibly connected with transmission shaft, and transmission shaft 1 is logical Cross thrust bearing 11 and installed with bearing block and is connect, transmission shaft 1 is equipped with position limiting structure 1-1 and friction component, when transmission shaft to the right Position-limiting action is played when mobile, wherein the load side of the cover for seat 3 is arranged in the position limiting structure 1-1, sets on the transmission shaft There are position limiting structure and friction component, one end of the transmission shaft is equipped with whim, and the transverse arm of support frame as described above body, which is equipped with, to be supplied Restrict across fixed pulley 23,14 free end of rope on the whim 12 is equipped with clump weight 15, the pedestal side be equipped with The earthing rod guide sleeve that pedestal is flexibly connected, the earthing rod are equipped with blind hole, and the pedestal is equipped with righting guiding mechanism.
The righting guiding mechanism includes the telescopic rod 27 being set on the base, is sleeved on telescopic rod and holds out against spring 26 With the righting body 25 for telescopic rod free end is arranged in being sleeved on earthing rod.Righting body, which is covered, to be played guiding on earthing rod and helps Positive interaction, movable cage plate are pressed in real time on righting body, prevent clump weight from first pounding righting body.
The earthing rod is equipped with the anti-theft hole 20 being connected to blind hole, and block 22 is equipped in the anti-theft hole 20, described blind The drill rod that driving block is displaced outwardly is equipped in hole.
The friction component includes being sleeved on the actuating swivel nut 5 being threadedly coupled therewith on transmission shaft, being arranged in transmission shaft one Hold the clamp nut 7 for preventing actuating swivel nut from exiting and the friction damper 4 being sleeved on transmission shaft.
Groove is arranged in the clamp nut side.
The walking mechanism is the Universal self-locking idler wheel being arranged under pedestal.
Earthing rod guide sleeve is equipped with earthing rod fixing bolt, and earthing rod guide sleeve is stuck on pedestal, installs to earthing rod Behind ground, guide sleeve can be removed.
A kind of application method of electric power grounding device, includes the following steps:
1)Pedestal is moved to earthing rod position to be installed, unclamps earthing rod fixing bolt 24, earthing rod and ground face contact;
2)Rotate clockwise actuating swivel nut to sling clump weight, rotate counterclockwise actuating swivel nut, at this time clump weight quickly to Lower movement, is pounded on earthing rod;Actuating swivel nut is rotated clockwise again to sling clump weight, rotates counterclockwise actuating swivel nut, this When clump weight quickly move down, pound on earthing rod, pound until by earthing rod into ground again;
3)Drill rod is put into blind hole 21 at this time, actuating swivel nut is rotated clockwise and slings clump weight, rotate counterclockwise actuating Swivel nut, clump weight quickly moves down at this time, pounds on drill rod;Actuating swivel nut is rotated clockwise again to sling clump weight, it is inverse Hour hands rotate actuating swivel nut, and clump weight quickly moves down at this time, pounds on drill rod again, blind into earthing rod until pounding drill rod Hole;Clump weight is removed, the hook 13 for end of restricting is hung on drill rod 16, actuating swivel nut is rotated clockwise, drill rod is pulled out.
Embodiment two
The earthing rod is equipped with drill rod guide sleeve 17, prevents from pounding partially, more importantly clump weight can be prevented to land, Injure other people by a crashing object.Earthing rod side is equipped with movable cage plate 18, prevents clump weight to land, injures other people by a crashing object.
Embodiment three
The longitudal section of the drill rod is triangle, convenient for ejecting block.
Example IV
The actuating swivel nut is equipped with rocker arm 9, rotates more laborsaving.
Embodiment five and the difference of example IV are:Its is composed of the following components by weight for the friction damper: 5 parts of active carbon;8 parts of Brown Alundum cashew nut oil modified alkyd resin;15 parts of diamond particles;15 parts of acrylonitrile-butadiene rubber powder;Polypropylene 10 parts of fiber;6 parts of boron nitride.
Embodiment six and the difference of example IV are:Its is composed of the following components by weight for the friction damper: 10 parts of active carbon;12 parts of Brown Alundum cashew nut oil modified alkyd resin;25 parts of diamond particles;25 parts of acrylonitrile-butadiene rubber powder;Poly- third 15 parts of alkene fiber;10 parts of boron nitride.
Embodiment seven and the difference of example IV are:Its is composed of the following components by weight for the friction damper: 8 parts of active carbon;10 parts of Brown Alundum cashew nut oil modified alkyd resin;20 parts of diamond particles;20 parts of acrylonitrile-butadiene rubber powder;Poly- third 12 parts of alkene fiber;8 parts of boron nitride;Diamond is cheap using diamond synthesis, and hardness is high.
Embodiment eight and the difference of embodiment seven are:Embodiment eight is using friction material disclosed in CN201480061713.7 Material;It tests, see the table below through inventor.
Presently preferred embodiments of the present invention is described above, to illustrate principles and applications, but should be managed Solution, the present invention can otherwise realize on the basis of without departing from these principles.

Claims (9)

1. a kind of electric power grounding device, it is characterised in that:Including being equipped with the pedestal of walking mechanism, transmission shaft, ratchet, setting the bottom of at Supporting frame on seat and the pawl being mounted on supporting frame, the transmission shaft is connect by cover for seat with supporting frame, described Ratchet is flexibly connected with transmission shaft, and the transmission shaft is equipped with position limiting structure and friction component, and one end of the transmission shaft is equipped with Whim, the transverse arm of support frame as described above body be equipped with for restrict across fixed pulley, the rope free end on the whim is set There is clump weight, the pedestal side is equipped with the earthing rod guide sleeve being movably connected with the base, and the pedestal is oriented to equipped with righting Mechanism;The earthing rod is equipped with blind hole, and the earthing rod is equipped with the anti-theft hole being connected to blind hole, is equipped in the anti-theft hole Block, the interior drill rod for being equipped with driving block and being displaced outwardly of the blind hole.
2. electric power grounding device as described in claim 1, it is characterised in that:The righting guiding mechanism includes being arranged in pedestal On telescopic rod, be sleeved on holding out against spring and the supporting positive cover that telescopic rod free end is sleeved on earthing rod is set on telescopic rod Body.
3. electric power grounding device as claimed in claim 2, it is characterised in that:The friction component includes being sleeved on transmission shaft Clamp nut and be sleeved on transmission that transmission shaft one end prevents actuating swivel nut from exiting is arranged in the actuating swivel nut that is threadedly coupled therewith Friction damper on axis.
4. electric power grounding device as claimed in claim 3, it is characterised in that:Groove is arranged in the clamp nut side.
5. electric power grounding device as claimed in claim 4, it is characterised in that:The walking mechanism is the rolling being arranged under pedestal Wheel.
6. electric power grounding device as claimed in claim 5, it is characterised in that:The idler wheel uses Universal self-locking idler wheel.
7. electric power grounding device as claimed in claim 6, it is characterised in that:The earthing rod is equipped with drill rod guide sleeve.
8. electric power grounding device as claimed in claim 7, it is characterised in that:The longitudal section of the drill rod is triangle.
9. a kind of application method of the electric power grounding device as described in claim 1-8 any one, it is characterised in that:Including with Lower step:
1)Pedestal is moved to earthing rod position to be installed, unclamps earthing rod fixing bolt, earthing rod and ground face contact;
2)It rotates clockwise actuating swivel nut to sling clump weight, rotates counterclockwise actuating swivel nut, clump weight is quickly to moving down at this time It is dynamic, it pounds on earthing rod;Actuating swivel nut is rotated clockwise again to sling clump weight, is rotated counterclockwise actuating swivel nut, is matched at this time Pouring weight quickly moves down, and pounds on earthing rod again, pounds until by earthing rod into ground;
3)Drill rod is put into blind hole at this time, actuating swivel nut is rotated clockwise and slings clump weight, rotate counterclockwise actuating swivel nut, this When clump weight quickly move down, pound on drill rod;Actuating swivel nut is rotated clockwise again to sling clump weight, is rotated counterclockwise Actuating swivel nut, clump weight quickly moves down at this time, pounds on drill rod again, pounds until by drill rod into earthing rod blind hole;It will match Pouring weight is removed, and the hook for end of restricting is hung on drill rod, rotates clockwise actuating swivel nut, drill rod is pulled out.
CN201610786367.XA 2016-08-31 2016-08-31 A kind of electric power grounding device Active CN106207514B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610786367.XA CN106207514B (en) 2016-08-31 2016-08-31 A kind of electric power grounding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610786367.XA CN106207514B (en) 2016-08-31 2016-08-31 A kind of electric power grounding device

Publications (2)

Publication Number Publication Date
CN106207514A CN106207514A (en) 2016-12-07
CN106207514B true CN106207514B (en) 2018-11-23

Family

ID=58087196

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610786367.XA Active CN106207514B (en) 2016-08-31 2016-08-31 A kind of electric power grounding device

Country Status (1)

Country Link
CN (1) CN106207514B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113607983B (en) * 2021-06-23 2024-04-02 国网河北省电力有限公司行唐县供电分公司 Intelligent temporary grounding device for overhauling 10 kilovolt overhead line

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201262988Y (en) * 2008-08-27 2009-06-24 周学昭 Grounding device
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
CN203794532U (en) * 2014-04-17 2014-08-27 新蒲建设集团有限公司 Distribution cabinet transporting rack for construction site
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
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
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
CN104563087A (en) * 2013-10-17 2015-04-29 北京中企卓创科技发展有限公司 Dynamic compactor and method for automatically monitoring dynamic compaction construction effectiveness
CN204991983U (en) * 2015-07-10 2016-01-20 周学昭 Grounding device
CN105680276A (en) * 2016-04-05 2016-06-15 国网山东省电力公司聊城供电公司 Grounding electrode driver and driving method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201262988Y (en) * 2008-08-27 2009-06-24 周学昭 Grounding device
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
CN104563087A (en) * 2013-10-17 2015-04-29 北京中企卓创科技发展有限公司 Dynamic compactor and method for automatically monitoring dynamic compaction construction effectiveness
CN203794532U (en) * 2014-04-17 2014-08-27 新蒲建设集团有限公司 Distribution cabinet transporting rack for construction site
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
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
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
CN204991983U (en) * 2015-07-10 2016-01-20 周学昭 Grounding device
CN105680276A (en) * 2016-04-05 2016-06-15 国网山东省电力公司聊城供电公司 Grounding electrode driver and driving method

Also Published As

Publication number Publication date
CN106207514A (en) 2016-12-07

Similar Documents

Publication Publication Date Title
CN101683957B (en) Three-dimensional garage
CN106549237B (en) A kind of power ground column of power engineering
CN106207514B (en) A kind of electric power grounding device
CN107425441A (en) Equipment is fixedly mounted in a kind of regulator cubicle with bottom draw function
CN106129776B (en) A kind of earthing or grounding means of anti-electrification installation ground wire
CN206040999U (en) Ground connection stake and extract device
CN201010425Y (en) Special suspending device for gyratory breaker thrust bearing
CN106229704B (en) A kind of power circuit grounding body and special extracting apparatus
CN103231342A (en) Lifting pluggable pin device
CN108033338B (en) A kind of building construction hoist rope broken protector
CN103640970B (en) Anti-rotating positioning device for crane hook
CN204281059U (en) A kind of lifting wind power tower drum suspension hook self-locking drop-proof dropping control device
CN206022649U (en) A kind of anti-theft alarm for electric appliance earthed system
CN203588564U (en) Buffer device of simulation teaching elevator
CN110359760B (en) Safety measure rod and using method
CN106207513B (en) A kind of power equipment anti-theft grounding device
CN208078506U (en) Distribution line live working tool containing device
CN202155852U (en) Bushing dismounting device
CN203129557U (en) Steel-ball gravity-locking type fall-prevention device for integral lifting scaffold
CN205408303U (en) Convenient electric appliance cabinet that removes
CN105655938A (en) Drum shearer power supply cable protection device
CN202859950U (en) Safety belt hook for dismounting derrick
CN205714042U (en) Shackle device on a kind of one-piece drill bit
CN104088257A (en) Gate auto-locking device
CN114704193B (en) Safety protection equipment for power engineering construction

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant