CN114204423B - Electric power cabinet protection earthing device - Google Patents
Electric power cabinet protection earthing device Download PDFInfo
- Publication number
- CN114204423B CN114204423B CN202110688233.5A CN202110688233A CN114204423B CN 114204423 B CN114204423 B CN 114204423B CN 202110688233 A CN202110688233 A CN 202110688233A CN 114204423 B CN114204423 B CN 114204423B
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- Prior art keywords
- plate
- power cabinet
- fixedly connected
- cabinet protection
- balance
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- 239000002184 metal Substances 0.000 claims abstract description 38
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 241001589086 Bellapiscis medius Species 0.000 claims 2
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The invention provides a power cabinet protection grounding device, which belongs to the technical field of power cabinet grounding and comprises a fixed plate, a balance plate and a control frame, wherein the lower surface of the balance plate is fixedly connected with a vertical plate, the inside of the vertical plate is provided with a sliding groove, and the inside of the sliding groove is connected with an extension plate in a sliding manner. This electric power cabinet protection earthing device, in the use, make the metal slide insert in the jack, and make the metal slide put into in the spout, laminate metal slide and electric power cabinet again, make the device with it fixed, it makes the threaded rod rotate and drives the balance plate and remove to rotate the crank, make the perpendicular board remove the assigned position, at this moment rotate the twist the hand and extend the extension board, and insert the earth with the ground needle, it is fixed with it to rotate the twist hand again, not only can make this electric power cabinet protection earthing device convenient to use, but also can make this electric power cabinet protection earthing device avoid producing the electric shock accident, can and convenient to detach and maintenance.
Description
Technical Field
The invention belongs to the technical field of grounding of power cabinets, and particularly relates to a protective grounding device of a power cabinet.
Background
Electric power is an energy source powered by electrical energy. Discovery and application of electricity in the 70 s of the 19 th century has turned up the second industrial climax. Become one of three technological innovations occurring in the world since the 18 th century of human history, and the life of people is changed from this technology. The large-scale power system in the 20 th century is one of the most important achievements in the history of human engineering science, and is a power generation and consumption system consisting of links such as power generation, transmission, transformation, distribution, electricity consumption and the like. The natural primary energy is converted into electric power through a mechanical energy device, and then the electric power is supplied to each user through power transmission, transformation and distribution.
Today, the internet age, we are still in ever-increasing demand for electricity, as we invented more electricity-using products such as computers, appliances, etc. The constant advent of new technologies has not been repudiated to make electricity a necessity for people.
The electric power cabinet is a cabinet which is formed by processing steel materials and used for protecting components from working normally. The manufacturing materials of the electric cabinet are generally divided into two types, namely a hot-rolled steel plate and a cold-rolled steel plate. Compared with a hot-rolled steel plate, the cold-rolled steel plate is softer in material and more suitable for manufacturing the electric cabinet. The electric power cabinet is widely used in chemical industry, environmental protection industry, electric power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, traffic industry and the like. The ground protection of the power cabinet plays a key role, while the exposed conductive parts of the electrical equipment and the conductive parts outside the device are connected to the ground via conductors.
However, most of the grounding structures of the existing electrical cabinets are fixed by adopting a concrete pouring mode, although the stability and the protectiveness are superior, the moving adjustment cannot be carried out in the later period, the maintenance is very complicated, the use is inconvenient, the safety of personnel and equipment is affected, and the like, so that the existing requirements are not met, and the protection grounding device of the electrical cabinet is provided.
Disclosure of Invention
The invention aims to provide a protective grounding device of an electric cabinet, which aims to solve the problem that the electric cabinet cannot be moved in the later period in the prior art to achieve the aim, and provides the following technical scheme: the utility model provides a power cabinet protection earthing device, includes fixed plate, balance plate and control frame, the lower fixed surface of balance plate is connected with perpendicular board, spout I has been seted up to the inside of perpendicular board, the inside sliding connection of spout I has the extension board, spacing hole has been seted up at the middle part of perpendicular board side, the bottom fixedly connected with ground needle of extension board, the middle part fixedly connected with connecting block of balance plate upper surface, the jack has been seted up to the inside of connecting block, the inside grafting of jack has the contact slide, one side fixedly connected with threaded rod of control frame, the surface threaded connection of threaded rod has the balance plate, the opposite side fixedly connected with polished rod of control frame, the surface sliding connection of polished rod has the balance plate.
Preferably, a screwing hand is arranged at the top of the side face of the extension plate, and the screwing hand is matched with the limiting hole.
Preferably, the contact sliding plate comprises a metal plate, a plug column is fixedly connected to the middle of the lower surface of the metal plate, the plug column is preferable, the threaded rod is fixedly connected to one side of the fixed plate through a plate, and the polished rod is fixedly connected to the other side of the fixed plate through a plate.
Preferably, one end of the threaded rod is fixedly connected with a crank, and the outer surface of the crank is provided with a rubber sleeve.
Preferably, a roller groove is formed in the balance plate, and rollers are arranged in the roller groove.
Preferably, fixing holes are fixedly connected to four corners of the upper surface of the fixing plate, and the fixing plate is made of electroplated metal.
Preferably, the lower surface of the fixed plate is fixedly connected with a control frame, and the inner slide of the control frame is connected with a balance plate.
Preferably, a sliding groove II is formed in the middle of the upper surface of the fixing plate, and a connecting block and a contact sliding plate are connected inside the sliding groove II in a sliding manner.
Preferably, the balance plate, the vertical plate, the extension plate, the ground needle, the connecting block and the contact sliding plate are made of conductive metal, and anti-corrosion paint is arranged on the outer surfaces of the balance plate, the vertical plate, the extension plate, the ground needle, the connecting block and the contact sliding plate.
Compared with the prior art, the invention has the beneficial effects that:
this electric power cabinet protection earthing device, in the use, make the metal slide insert in the jack, and make the metal slide put into in the spout, laminate metal slide and electric power cabinet again, make the device with it fixed, it makes the threaded rod rotate and drives the balance plate and remove to rotate the crank, make the perpendicular board remove the assigned position, at this moment rotate the twist the hand and extend the extension board, and insert the earth with the ground needle, it is fixed with it to rotate the twist hand again, not only can make this electric power cabinet protection earthing device convenient to use, but also can make this electric power cabinet protection earthing device avoid producing the electric shock accident, can and convenient to detach and maintenance.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a second perspective view of the present invention;
FIG. 3 is a third perspective view of the present invention;
FIG. 4 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;
fig. 5 is an enlarged view of the structure of fig. 3B according to the present invention.
In the figure: 1. a fixing plate; 2. a balance plate; 3. a vertical plate; 4. a chute I; 5. an extension plate; 6. a limiting hole; 7. a ground needle; 8. a connecting block; 9. a jack; 10. a contact slide plate; 101. a metal plate; 102. inserting a column; 103. a return spring; 11. a threaded rod; 12. screwing the hand; 13. a plate; 14. a crank; 15. a roller groove; 16. a roller; 17. a fixing hole; 18. a chute II; 19. a polish rod; 20. and a control frame.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-5, the present invention provides the following technical solutions: the utility model provides a power cabinet protection earthing device, including fixed plate 1, balance plate 2 and control frame 20, the lower fixed surface of balance plate 2 is connected with perpendicular board 3, spout I4 has been seted up to the inside of perpendicular board 3, the inside sliding connection of spout I4 has extension board 5, spacing hole 6 has been seted up at the middle part of perpendicular board 3 side, the bottom fixedly connected with ground needle 7 of extension board 5, the middle part fixedly connected with connecting block 8 of balance plate 2 upper surface, jack 9 has been seted up to the inside of connecting block 8, the inside grafting of jack 9 has contact slide 10, one side fixedly connected with threaded rod 11 of control frame 20, the surface threaded connection of threaded rod 11 has balance plate 2, the opposite side fixedly connected with polished rod 19 of control frame 20, the surface sliding connection of polished rod 19 has balance plate 2.
In the specific embodiment of the invention, in the use process, the metal slide plate 10 is inserted into the insertion hole 9, the metal slide plate 10 is placed into the sliding groove, the metal slide plate 10 is attached to the electric cabinet, the electric cabinet protection grounding device is fixed, the crank 14 is rotated to enable the threaded rod 11 to rotate and drive the balance plate 2 to move, the vertical plate 3 is enabled to move to a designated position, at the moment, the extending plate 5 is extended by the rotating screw 12, the ground needle 7 is inserted into the ground, and the screw 12 is rotated to fix the ground needle, so that the electric cabinet protection grounding device is convenient to use, and electric shock accidents are avoided.
Specifically, the top of extension board 5 side is provided with the twist hand 12, and twist hand 12 and spacing hole 6 looks adaptation.
In this embodiment: in the use process, the extension length of the extension plate 5 can be adjusted by rotating the screwing hand 12, and then the extension plate is fixed.
Specifically, the contact slide plate 10 includes a metal plate 101, and a plug 102 is fixedly connected to the middle of the lower surface of the metal plate 101, and return springs 103 are fixedly connected to the left and right sides of the plug 102.
In this embodiment: during the use, can insert the jack 9 with the metal sheet 101 through inserting 102, rethread reset spring 103 has upward thrust to the metal sheet 101, can make metal sheet 101 and electric power cabinet bottom laminating contact.
Specifically, the threaded rod 11 is fixedly connected to one side of the fixed plate 1 through the plate 13, the polished rod 19 is fixedly connected to the other side of the fixed plate 1 through the plate 13, and the threaded rod 11 and the polished rod 19 are arranged in parallel.
In this embodiment: during use, the threaded rod 11 and the polished rod 19 can rotate within the plate 13 and can make the balance plate 2 move smoothly.
Specifically, one end of the threaded rod 11 is fixedly connected with a crank 14, and a rubber sleeve is arranged on the outer surface of the crank 14.
In this embodiment: during use, the crank 14 can rotate the threaded rod 11.
Specifically, a chute II 18 is formed in the middle of the upper surface of the fixed plate 1, and a connecting block 8 and a contact sliding plate 10 are connected inside the chute II 18 in a sliding manner.
In this embodiment: during use, the connection block 8 and the contact slide 10 can slide in the slide groove ii 18.
Specifically, the balance plate 2, the vertical plate 3, the extension plate 5, the ground needle 7, the connecting block 8 and the contact slide plate 10 are made of conductive metal, and anticorrosive paint is arranged on the outer surfaces of the balance plate 2, the vertical plate 3, the extension plate 5, the ground needle 7, the connecting block 8 and the contact slide plate 10.
Example 2
Referring to fig. 1-5, the present invention provides the following technical solutions: the utility model provides a power cabinet protection earthing device, including fixed plate 1, balance plate 2 and control frame 20, the lower fixed surface of balance plate 2 is connected with perpendicular board 3, spout I4 has been seted up to the inside of perpendicular board 3, the inside sliding connection of spout I4 has extension board 5, spacing hole 6 has been seted up at the middle part of perpendicular board 3 side, the bottom fixedly connected with ground needle 7 of extension board 5, the middle part fixedly connected with connecting block 8 of balance plate 2 upper surface, jack 9 has been seted up to the inside of connecting block 8, the inside grafting of jack 9 has contact slide 10, one side fixedly connected with threaded rod 11 of control frame 20, the surface threaded connection of threaded rod 11 has balance plate 2, the opposite side fixedly connected with polished rod 19 of control frame 20, the surface sliding connection of polished rod 19 has balance plate 2.
In the specific embodiment of the invention, in the use process, the metal slide plate 10 is inserted into the insertion hole 9, the metal slide plate 10 is placed into the sliding groove, the metal slide plate 10 is attached to the electric cabinet, the electric cabinet protection grounding device is fixed, the crank 14 is rotated to enable the threaded rod 11 to rotate and drive the balance plate 2 to move, the vertical plate 3 is enabled to move to a designated position, at the moment, the extending plate 5 is extended by the rotating screw 12, the ground needle 7 is inserted into the ground, and the screw 12 is rotated to fix the ground needle, so that the electric cabinet protection grounding device is convenient to use, and electric shock accidents are avoided.
Specifically, the top of extension board 5 side is provided with the twist hand 12, and twist hand 12 and spacing hole 6 looks adaptation.
In this embodiment: in the use process, the extension length of the extension plate 5 can be adjusted by rotating the screwing hand 12, and then the extension plate is fixed.
Specifically, the contact slide plate 10 includes a metal plate 101, and a plug 102 is fixedly connected to the middle of the lower surface of the metal plate 101, and return springs 103 are fixedly connected to the left and right sides of the plug 102.
In this embodiment: during the use, can insert the jack 9 with the metal sheet 101 through inserting 102, rethread reset spring 103 has upward thrust to the metal sheet 101, can make metal sheet 101 and electric power cabinet bottom laminating contact.
Specifically, the threaded rod 11 is fixedly connected to one side of the fixed plate 1 through the plate 13, the polished rod 19 is fixedly connected to the other side of the fixed plate 1 through the plate 13, and the threaded rod 11 and the polished rod 19 are arranged in parallel.
In this embodiment: during use, the threaded rod 11 and the polished rod 19 can rotate within the plate 13 and can make the balance plate 2 move smoothly.
Specifically, one end of the threaded rod 11 is fixedly connected with a crank 14, and a rubber sleeve is arranged on the outer surface of the crank 14.
In this embodiment: during use, the crank 14 can rotate the threaded rod 11.
Specifically, a chute II 18 is formed in the middle of the upper surface of the fixed plate 1, and a connecting block 8 and a contact sliding plate 10 are connected inside the chute II 18 in a sliding manner.
In this embodiment: during use, the connection block 8 and the contact slide 10 can slide in the slide groove ii 18.
Specifically, the balance plate 2, the vertical plate 3, the extension plate 5, the ground needle 7, the connecting block 8 and the contact slide plate 10 are made of conductive metal, and anticorrosive paint is arranged on the outer surfaces of the balance plate 2, the vertical plate 3, the extension plate 5, the ground needle 7, the connecting block 8 and the contact slide plate 10.
Specifically, the balance plate 2 is provided with a roller groove 15 inside, and a roller 16 is provided inside the roller groove 15.
In this embodiment: during use, the rollers 16 can move the balance plate 2 within the control frame 20 more smoothly.
Specifically, fixing holes 17 are fixedly connected to four corners of the upper surface of the fixing plate 1, and the fixing plate 1 is made of electroplated metal.
In this embodiment: in use, the fixing hole 17 can fix the device at the bottom of the power cabinet, and the fixing plate 1 has an anti-corrosion effect, so that the power cabinet can be further protected.
Specifically, the lower surface of the fixed plate 1 is fixedly connected with a control frame 20, and the inner slide of the control frame 20 is connected with a balance plate 2.
In this embodiment: during use, the balance plate 2 is able to slide within the control frame 20.
In this embodiment: in the use process, the conductive metal not only can transmit current to the ground, but also has the anti-corrosion effect.
The working principle and the using flow of the invention are as follows: when the electric cabinet protection grounding device is used, in the using process, the metal slide plate 10 is inserted into the insertion hole 9, the metal slide plate 10 is placed into the sliding groove, the metal slide plate 10 is attached to the electric cabinet, the device is fixed, the crank 14 is rotated to enable the threaded rod 11 to rotate and drive the balance plate 2 to move, the vertical plate 3 is enabled to move to a designated position, the extending plate 5 is extended by the rotating screw 12, the ground needle 7 is inserted into the ground, the fixing is carried out by the rotating screw 12, the electric cabinet protection grounding device is convenient to use, and electric shock accidents are avoided.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an electric power cabinet protection earthing device, includes fixed plate (1), balance plate (2) and control frame (20), its characterized in that:
the utility model discloses a balance plate, including balance plate (2), spout I (4) have been seted up to the lower fixed surface of balance plate (2), spout I (4) have been seted up to the inside of perpendicular plate (3), extension plate (5) have been seted up to the inside sliding connection of spout I (4), spacing hole (6) have been seted up at the middle part of perpendicular plate (3) side, the bottom fixedly connected with ground needle (7) of extension plate (5), the middle part fixedly connected with connecting block (8) of balance plate (2) upper surface, jack (9) have been seted up to the inside of connecting block (8), peg graft in jack (9) has contact slide (10), one side fixedly connected with threaded rod (11) of control frame (20), the surface threaded connection of threaded rod (11) has balance plate (2), the opposite side fixedly connected with polished rod (19) of control frame (20), the surface sliding connection of polished rod (19) has balance plate (2).
A sliding groove II (18) is formed in the middle of the upper surface of the fixed plate (1), and a connecting block (8) and a contact sliding plate (10) are connected inside the sliding groove II (18) in a sliding manner; the balance plate (2), the vertical plate (3), the extension plate (5), the ground needle (7), the connecting block (8) and the contact sliding plate (10) are all made of conductive metal.
2. A power cabinet protection grounding apparatus as defined in claim 1, wherein: the top of extension board (5) side is provided with twister (12), twister (12) and spacing hole (6) looks adaptation.
3. A power cabinet protection grounding apparatus as defined in claim 1, wherein: the contact sliding plate (10) comprises a metal plate (101), wherein a plug post (102) is fixedly connected to the middle of the lower surface of the metal plate (101), and return springs (103) are fixedly connected to the left side and the right side of the plug post (102).
4. A power cabinet protection grounding apparatus as defined in claim 1, wherein: the threaded rod (11) is fixedly connected to one side of the fixed plate (1) through the plate (13), the polished rod (19) is fixedly connected to the other side of the fixed plate (1) through the plate (13), and the threaded rod (11) and the polished rod (19) are arranged in parallel.
5. A power cabinet protection grounding apparatus as defined in claim 1, wherein: one end of the threaded rod (11) is fixedly connected with a crank (14), and a rubber sleeve is arranged on the outer surface of the crank (14).
6. A power cabinet protection grounding apparatus as defined in claim 1, wherein: the balance plate (2) is internally provided with a roller groove (15), and the roller groove (15) is internally provided with a roller (16).
7. A power cabinet protection grounding apparatus as defined in claim 1, wherein: fixing holes (17) are fixedly connected to four corners of the upper surface of the fixing plate (1), and the fixing plate (1) is made of electroplated metal.
8. A power cabinet protection grounding apparatus as defined in claim 1, wherein: the lower surface of the fixed plate (1) is fixedly connected with a control frame (20), and the inner slide of the control frame (20) is connected with a balance plate (2).
9. A power cabinet protection grounding apparatus as defined in claim 1, wherein: the outer surfaces of the balance plate (2), the vertical plate (3), the extension plate (5), the ground needle (7), the connecting block (8) and the contact sliding plate (10) are all provided with anti-corrosion paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110688233.5A CN114204423B (en) | 2021-06-21 | 2021-06-21 | Electric power cabinet protection earthing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110688233.5A CN114204423B (en) | 2021-06-21 | 2021-06-21 | Electric power cabinet protection earthing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114204423A CN114204423A (en) | 2022-03-18 |
| CN114204423B true CN114204423B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110688233.5A Active CN114204423B (en) | 2021-06-21 | 2021-06-21 | Electric power cabinet protection earthing device |
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| Country | Link |
|---|---|
| CN (1) | CN114204423B (en) |
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| KR101239745B1 (en) * | 2012-12-21 | 2013-03-06 | (주)금정이엔씨 | Underground cable grounding device of low voltage cabling box for apartment house |
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| CN109723271A (en) * | 2018-12-26 | 2019-05-07 | 国家电网有限公司 | Bury lever apparatus |
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| CN211331421U (en) * | 2019-11-19 | 2020-08-25 | 苏州创实精密五金有限公司 | Drilling equipment is used in balancing piece processing |
| CN212303949U (en) * | 2020-07-03 | 2021-01-05 | 李玉胜 | Electrical equipment grounding device |
| CN212676482U (en) * | 2020-06-05 | 2021-03-09 | 国家电网有限公司 | Horizontal rectangular busbar grounding device of transformer substation and mounting tool thereof |
| CN212934877U (en) * | 2020-09-23 | 2021-04-09 | 邹璇 | A ground protection device for electric power construction |
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2021
- 2021-06-21 CN CN202110688233.5A patent/CN114204423B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2790333A1 (en) * | 1999-02-26 | 2000-09-01 | Frenehard & Michaux Sa | Earth post/cable connecting piece having metal section with inner shaped holes and upper screw securing cable connection formed using flat plate shaped/clamp around cable. |
| KR101239745B1 (en) * | 2012-12-21 | 2013-03-06 | (주)금정이엔씨 | Underground cable grounding device of low voltage cabling box for apartment house |
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| CN212676482U (en) * | 2020-06-05 | 2021-03-09 | 国家电网有限公司 | Horizontal rectangular busbar grounding device of transformer substation and mounting tool thereof |
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| CN212934877U (en) * | 2020-09-23 | 2021-04-09 | 邹璇 | A ground protection device for electric power construction |
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| Publication number | Publication date |
|---|---|
| CN114204423A (en) | 2022-03-18 |
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