CN114156668A - Novel connector angle-adjustable grounding device - Google Patents
Novel connector angle-adjustable grounding device Download PDFInfo
- Publication number
- CN114156668A CN114156668A CN202111481842.XA CN202111481842A CN114156668A CN 114156668 A CN114156668 A CN 114156668A CN 202111481842 A CN202111481842 A CN 202111481842A CN 114156668 A CN114156668 A CN 114156668A
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- fixed
- angle
- metal
- square channel
- square
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- 239000002184 metal Substances 0.000 claims abstract description 55
- 229910052751 metal Inorganic materials 0.000 claims abstract description 55
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-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
- H01R4/58—Electrically-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
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Electric Cable Installation (AREA)
Abstract
The invention discloses a novel connector angle-adjustable grounding device which comprises an insulating operating rod, a metal connector and a grounding copper wire, wherein an angle adjusting piece comprises a rotary seat fixed at the bottom end of the metal connector, a square channel is formed in the center of the insulating operating rod, angle adjusting grooves are symmetrically formed in the top of the square channel, the rotary seat penetrates through the angle adjusting grooves and is fixed at the center of the top of the square channel through a rotary shaft, a gear is fixed on the rotary shaft, a lead screw is rotatably connected to the center of the bottom of the square channel, a rotary handle connected with the lead screw is fixedly connected to the bottom end of the insulating operating rod in a rotary mode, and a square sliding block sliding in the square channel is connected to the lead screw in a meshed mode. The invention has novel structure and ingenious conception, properly adjusts the working angle of the metal joint, is more convenient to use, and solves the defect that the high-altitude inclined and vertical conductor can only be erected on a framework or an insulating ladder for installation when being grounded.
Description
Technical Field
The invention relates to the technical field of grounding devices, in particular to a novel grounding device with an adjustable connector angle.
Background
The ground means is a generic term for a ground electrode buried underground and a connection wire from the ground electrode to a device.
The traditional grounding device is composed of a metal connector, an insulating rod and a grounding copper wire, wherein one end of the copper wire is grounded, and the other end of the copper wire is connected with a conductor through the metal connector. However, because the installation angle of the conductor of the transformer substation is not fixed, and the angle between the traditional metal joint and the insulating rod can not be adjusted, the grounding operation of a high-altitude inclined type or vertical type conductor is very inconvenient, and a person on duty generally stands on a framework or an insulating ladder for installation, so that the efficiency is low and the safety is not high. Therefore, it is necessary to design a novel grounding device with adjustable connector angle.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a novel connector angle adjustable grounding device which has a novel structure and ingenious conception, properly adjusts the working angle of a metal connector, is more convenient to use, and overcomes the defect that the grounding device can only stand on a framework or an insulating ladder for installation when a certain high-altitude inclined and vertical conductor is grounded.
In order to achieve the purpose, the invention provides the following technical scheme: a novel grounding device with an adjustable connector angle comprises an insulating operating rod, a metal connector and a grounding copper wire, wherein the top of the insulating operating rod is movably connected with the metal connector, the grounding copper wire is installed on one side of the metal connector, and the top end of the insulating operating rod is connected with the metal connector through an angle adjusting piece;
the angle adjusting piece is including fixing the swivel seat that is fixed with in the metal joint bottom, square passageway has been seted up to insulating bar's center department, the angle adjustment groove has been seted up to square passageway's top symmetry, the swivel seat passes the angle adjustment groove and fixes the top center department at square passageway through the pivot, be fixed with the gear in the pivot, square passageway's bottom center department rotates and is connected with the lead screw, insulating bar's bottom connects soon and is fixed with the swing handle of being connected with the lead screw, the meshing is connected with the square slider that slides in square passageway inside on the lead screw, the montant is installed at square slider's top, be provided with the rack of being connected with gear engagement on the montant.
Preferably, the two ends of the rack on the vertical rod are provided with limit blocks.
Preferably, the metal joint comprises a metal shell, a fixed chuck, a movable chuck, a supporting spring, a sliding groove, a pull rope and a pull ring;
the novel metal shell structure is characterized in that a fixed chuck is installed on one side of the top of the metal shell, a sliding groove is formed in the metal shell and located below the fixed chuck, a movable chuck is connected to the inside of the sliding groove in a sliding mode and connected with the inner wall of the metal shell through a supporting spring, a pull rope penetrating through the metal shell is installed on the movable chuck, and the tail end of the pull rope is connected with a pull ring.
Preferably, the movable chuck is provided with a through limiting hole, and a limiting rod arranged inside the metal shell penetrates through the limiting hole.
Preferably, the pull rope is sleeved with a plurality of limiting rings, and the limiting rings are equidistantly arranged on the outer wall of the insulating operating rod.
Preferably, a wiring pile is installed at the center of the back of the metal connector, a grounding copper wire is fixedly inserted in the wiring pile, and a jacking screw is fixedly screwed on the wiring pile.
The invention has the beneficial effects that:
1. the working angle of the metal joint is properly adjusted, the use is more convenient, and the defect that the conductor can only stand on a framework or an insulating ladder for installation when the high-altitude inclined and vertical conductor is grounded is overcome;
2. the pull ring is pulled, the movable chuck is driven to move downwards through the pull rope, the supporting spring is stressed and compressed, then the pull ring is loosened, and under the reverse acting force of the supporting spring, the object can be tightly connected, so that the grounding effect of the object is ensured;
3. the motion of the movable chuck is limited by the limiting rod and the limiting hole, so that the motion stability of the movable chuck is ensured;
4. insert the inside of wiring stake with the top of ground connection copper line to screwing the puller screw, make things convenient for the installation of ground connection copper line to dismantle.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall plan structure of the present invention;
FIG. 2 is a schematic plan view of the angle adjusting member of the present invention;
FIG. 3 is a schematic cross-sectional plan view of a metal joint according to the present invention;
reference numbers in the figures: 1. an insulating operating rod; 2. a metal joint; 3. a ground copper line; 4. a wiring pile; 5. jacking the screw tightly; 6. an angle adjusting member; 7. a limiting ring; 8. turning a handle; 9. a square channel; 10. a screw rod; 11. a square slider; 12. a vertical rod; 13. an angle adjusting groove; 14. a rack; 15. a limiting block; 16. a rotating base; 17. a gear; 18. a rotating shaft; 19. a metal housing; 20. fixing a chuck; 21. a movable chuck; 22. a support spring; 23. a chute; 24. pulling a rope; 25. a pull ring; 26. a limiting rod; 27. and a limiting hole.
Detailed Description
The technical scheme of the invention is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.
In the prior art, the angle between the metal joint and the insulating rod can not be adjusted, so that the grounding operation of a high-altitude inclined type and vertical type conductor is very inconvenient, and a person on duty generally stands on a framework or an insulating ladder for installation, so that the efficiency is low and the safety is low.
Example one
As shown in fig. 1 and 2, the present invention provides the following technical solutions: a novel earthing device with adjustable connector angle comprises an insulating operating rod 1, a metal joint 2 and an earthing copper wire 3, wherein the top of the insulating operating rod 1 is movably connected with the metal joint 2, one side of the metal joint 2 is provided with the earthing copper wire 3, the top end of the insulating operating rod 1 is connected with the metal joint 2 through an angle adjusting piece 6, the angle adjusting piece 6 comprises a rotary seat 16 fixed at the bottom end of the metal joint 2, a square channel 9 is arranged at the center of the insulating operating rod 1, angle adjusting grooves 13 are symmetrically arranged at the top of the square channel 9, the rotary seat 16 passes through the angle adjusting grooves 13 and is fixed at the center of the top of the square channel 9 through a rotary shaft 18, a gear 17 is fixed on the rotary shaft 18, the center of the bottom of the square channel 9 is rotatably connected with a screw rod 10, a rotary handle 8 connected with the screw rod 10 is rotatably connected at the bottom end of the insulating operating rod 1, a square sliding block 11 sliding in the square channel 9 is engaged and connected with the screw rod 10, the montant 12 is installed at the top of square slider 11, be provided with the rack 14 of being connected with gear 17 meshing on the montant 12, through rotating the swing handle 8, it is rotatory to drive the lead screw 10, thereby drive square slider 11 at the inside motion of square passageway 9, thereby it is rotatory to drive gear 17 through rack 14, then it is rotatory to drive pivot 18, finally carry out angle modulation to metal joint 2 through roating seat 16, the work angle of appropriate adjustment metal joint 2, it is more convenient to use, some eminences tilting have been solved, can only stand on the framework or stand on insulating ladder and adorn the drawback of establishing when rectilinear conductor ground connection operation.
Preferably, the vertical rod 12 is provided with limiting blocks 15 at two ends of the rack 14, so that the movement of the rack 14 is limited, and the rack 14 is prevented from being separated from the gear 17.
Example two
In the first embodiment, the clamping operation is inconvenient, referring to fig. 1 and 3, as another preferred embodiment, the difference from the first embodiment is that the metal joint 2 comprises a metal shell 19, a fixed chuck 20, a movable chuck 21, a supporting spring 22, a sliding chute 23, a pulling rope 24 and a pulling ring 25, the fixed chuck 20 is installed on one side of the top of the metal shell 19, the sliding chute 23 is formed below the fixed chuck 20 on the metal shell 19, the movable chuck 21 is connected to the inside of the sliding chute 23 in a sliding manner, the movable chuck 21 is connected to the inner wall of the metal shell 19 through the supporting spring 22, the pulling rope 24 penetrating through the metal shell 19 is installed on the movable chuck 21, the pulling ring 25 is connected to the tail end of the pulling rope 24, the pulling ring 25 is pulled to drive the movable chuck 21 to move downwards through the pulling rope 24, so that the supporting spring 22 is compressed under the force, and then the pulling ring 25 is released, and under the reverse acting force of the supporting spring 22, the tight connection with the object can be realized, the grounding of the object is guaranteed to be effective.
Preferably, the movable chuck 21 is provided with a through limiting hole 27, a limiting rod 26 mounted inside the metal shell 19 penetrates through the limiting hole 27, and the movement of the movable chuck 21 is limited by the limiting rod 26 and the limiting hole 27, so that the movement stability of the movable chuck 21 is ensured.
Preferably, a plurality of limiting rings 7 are sleeved on the pull rope 24, and the limiting rings 7 are equidistantly mounted on the outer wall of the insulating operating rod 1 to limit the pull rope 24.
EXAMPLE III
In the first embodiment, the grounding copper wire 3 is inconvenient to install and detach, referring to fig. 1, as another preferred embodiment, the difference from the first embodiment is that a wiring pile 4 is installed at the center of the back of the metal joint 2, the grounding copper wire 3 is fixedly inserted into the wiring pile 4, a tightening screw 5 is fixedly screwed on the wiring pile 4, the top end of the grounding copper wire 3 is inserted into the wiring pile 4, and the tightening screw 5 is screwed, so that the grounding copper wire 3 is convenient to install and detach.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a novel earthing with adjustable connector angle device which characterized in that: including insulating bar (1), metal joint (2) and ground connection copper line (3), the top swing joint of insulating bar (1) has metal joint (2), ground connection copper line (3), its characterized in that are installed to one side of metal joint (2): the top end of the insulating operating rod (1) is connected with the metal joint (2) through an angle adjusting piece (6);
the angle adjusting piece (6) comprises a rotary seat (16) fixed at the bottom end of the metal joint (2), a square channel (9) is arranged at the center of the insulating operating rod (1), angle adjusting grooves (13) are symmetrically arranged at the top of the square channel (9), the rotary seat (16) penetrates through the angle adjusting grooves (13) and is fixed at the center of the top of the square channel (9) through a rotating shaft (18), a gear (17) is fixed on the rotating shaft (18), a lead screw (10) is rotatably connected at the center of the bottom of the square channel (9), a rotary handle (8) connected with the lead screw (10) is fixedly connected at the bottom end of the insulating operating rod (1) in a rotary connection mode, a square sliding block (11) sliding in the square channel (9) is connected to the lead screw (10) in a meshing mode, a vertical rod (12) is installed at the top of the square sliding block (11), the vertical rod (12) is provided with a rack (14) which is meshed and connected with the gear (17).
2. The novel grounding device with adjustable connector angle of claim 1, wherein: and limiting blocks (15) are arranged at two ends of the rack (14) on the vertical rod (12).
3. The novel grounding device with adjustable connector angle of claim 1, wherein: the metal joint (2) comprises a metal shell (19), a fixed chuck (20), a movable chuck (21), a support spring (22), a sliding groove (23), a pull rope (24) and a pull ring (25);
the novel metal shell structure is characterized in that a fixed chuck (20) is installed on one side of the top of a metal shell (19), a sliding groove (23) is formed in the metal shell (19) and located below the fixed chuck (20), the sliding groove (23) is connected with a movable chuck (21) in a sliding mode, the movable chuck (21) is connected with the inner wall of the metal shell (19) through a supporting spring (22), a pull rope (24) penetrating through the metal shell (19) is installed on the movable chuck (21), and the tail end of the pull rope (24) is connected with a pull ring (25).
4. The novel grounding device with adjustable connector angle of claim 3, wherein: the movable chuck (21) is provided with a through limiting hole (27), and a limiting rod (26) arranged inside the metal shell (19) penetrates through the limiting hole (27).
5. The novel grounding device with adjustable connector angle of claim 3, wherein: the pull rope (24) is sleeved with a plurality of limiting rings (7), and the limiting rings (7) are equidistantly arranged on the outer wall of the insulating operating rod (1).
6. The novel grounding device with adjustable connector angle of claim 1, wherein: the back center department of metal joint (2) installs wiring stake (4), the inside grafting of wiring stake (4) is fixed with ground connection copper line (3), wiring stake (4) top spin connects to be fixed with and pushes up tight screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111481842.XA CN114156668B (en) | 2021-12-06 | 2021-12-06 | Novel grounding device with adjustable connector angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111481842.XA CN114156668B (en) | 2021-12-06 | 2021-12-06 | Novel grounding device with adjustable connector angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114156668A true CN114156668A (en) | 2022-03-08 |
| CN114156668B CN114156668B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111481842.XA Active CN114156668B (en) | 2021-12-06 | 2021-12-06 | Novel grounding device with adjustable connector angle |
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| CN (1) | CN114156668B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2017055498A (en) * | 2015-09-07 | 2017-03-16 | 中国電力株式会社 | Earth Hook |
| CN206116662U (en) * | 2016-09-01 | 2017-04-19 | 宁波天弘电力器具有限公司 | Adjustable anti -skidding uncoupling ground wire action bars |
| CN107359435A (en) * | 2017-07-28 | 2017-11-17 | 国网安徽省电力公司合肥供电公司 | A kind of transmission line of electricity split multi-angle formula grounding wire device |
| CN108448271A (en) * | 2018-03-23 | 2018-08-24 | 国网山西省电力公司忻州供电公司 | A kind of power transmission line ground wire convenient for conductor grip opening and closing and angular adjustment |
| CN207834609U (en) * | 2017-12-25 | 2018-09-07 | 海南梵思科技有限公司 | A kind of multi-angle grounding wire device |
| CN109980380A (en) * | 2019-03-28 | 2019-07-05 | 国网江苏省电力有限公司常州供电分公司 | Substation Electric Equipment overhauls conductor earthing device |
| CN209516060U (en) * | 2019-03-28 | 2019-10-18 | 国网江苏省电力有限公司常州供电分公司 | A kind of Substation Electric Equipment maintenance conductor earthing device |
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| CN111458656A (en) * | 2020-05-08 | 2020-07-28 | 陈泽 | Be applied to on-spot earth fault's of electric power insulating device |
| CN213151064U (en) * | 2020-10-28 | 2021-05-07 | 江苏茂林电力科技有限公司 | Grounding device for insulated conductor construction |
| CN213401570U (en) * | 2020-12-11 | 2021-06-08 | 袁梦苒 | Portable electric power construction earthing device |
| CN113471727A (en) * | 2021-07-23 | 2021-10-01 | 广东电网有限责任公司 | Grounding wire device |
| CN215008608U (en) * | 2021-06-01 | 2021-12-03 | 北京市轨道交通运营管理有限公司 | Triangular electricity testing grounding device for contact rail |
-
2021
- 2021-12-06 CN CN202111481842.XA patent/CN114156668B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017055498A (en) * | 2015-09-07 | 2017-03-16 | 中国電力株式会社 | Earth Hook |
| CN206116662U (en) * | 2016-09-01 | 2017-04-19 | 宁波天弘电力器具有限公司 | Adjustable anti -skidding uncoupling ground wire action bars |
| CN107359435A (en) * | 2017-07-28 | 2017-11-17 | 国网安徽省电力公司合肥供电公司 | A kind of transmission line of electricity split multi-angle formula grounding wire device |
| CN207834609U (en) * | 2017-12-25 | 2018-09-07 | 海南梵思科技有限公司 | A kind of multi-angle grounding wire device |
| CN108448271A (en) * | 2018-03-23 | 2018-08-24 | 国网山西省电力公司忻州供电公司 | A kind of power transmission line ground wire convenient for conductor grip opening and closing and angular adjustment |
| CN209516060U (en) * | 2019-03-28 | 2019-10-18 | 国网江苏省电力有限公司常州供电分公司 | A kind of Substation Electric Equipment maintenance conductor earthing device |
| CN109980380A (en) * | 2019-03-28 | 2019-07-05 | 国网江苏省电力有限公司常州供电分公司 | Substation Electric Equipment overhauls conductor earthing device |
| CN110474179A (en) * | 2019-07-19 | 2019-11-19 | 国网新疆电力有限公司奎屯供电公司 | A kind of variable-angle earthing clamp and its application method |
| CN111458656A (en) * | 2020-05-08 | 2020-07-28 | 陈泽 | Be applied to on-spot earth fault's of electric power insulating device |
| CN213151064U (en) * | 2020-10-28 | 2021-05-07 | 江苏茂林电力科技有限公司 | Grounding device for insulated conductor construction |
| CN213401570U (en) * | 2020-12-11 | 2021-06-08 | 袁梦苒 | Portable electric power construction earthing device |
| CN215008608U (en) * | 2021-06-01 | 2021-12-03 | 北京市轨道交通运营管理有限公司 | Triangular electricity testing grounding device for contact rail |
| CN113471727A (en) * | 2021-07-23 | 2021-10-01 | 广东电网有限责任公司 | Grounding wire device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114156668B (en) | 2024-04-12 |
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