CN112332118B - Grounding installation device and grounding equipment - Google Patents
Grounding installation device and grounding equipment Download PDFInfo
- Publication number
- CN112332118B CN112332118B CN202011173376.4A CN202011173376A CN112332118B CN 112332118 B CN112332118 B CN 112332118B CN 202011173376 A CN202011173376 A CN 202011173376A CN 112332118 B CN112332118 B CN 112332118B
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- grounding
- screw
- clamp
- locking ring
- ground
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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
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
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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
- H01R4/28—Clamped connections, spring connections
- H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
- H01R4/5016—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone
- H01R4/5025—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone combined with a threaded ferrule operating in a direction parallel to the conductor
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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
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- Electric Cable Installation (AREA)
Abstract
The invention relates to the technical field of operation and maintenance of power equipment, and particularly discloses a grounding installation device and grounding equipment. The grounding installation device comprises a grounding clamp arranged on the periphery of a grounding screw rod, the grounding clamp can conduct electricity, the grounding clamp comprises a first end far away from a grounding copper bar and a second end close to the grounding copper bar, the radial sectional area of the first end is larger than that of the second end, the first end is used for being connected with a grounding end of a ground wire, a spiral clamping piece is fixedly arranged on the outer side of the first end, locking rings are movably arranged on the outer sides of the second end and the spiral clamping piece, the first end protrudes out of the locking rings in the length direction of the grounding screw rod and can rotate relative to the spiral clamping piece and the grounding clamp, a thread structure is arranged between the spiral clamping piece and the locking rings, and when the locking rings rotate relative to the spiral clamping piece, the spiral clamping piece can be driven to clamp or loosen the grounding screw rod. The grounding installation device is firm in connection and not easy to lose, and the risk of short circuit of equipment is reduced.
Description
Technical Field
The invention relates to the technical field of operation and maintenance of power equipment, in particular to a grounding installation device and grounding equipment.
Background
The equipment is hung with the ground wire in the maintenance work of the power system, the existing connection between the ground wire and the grounding point is that most bolts are welded on a grounding copper bar, and the grounding end of the ground wire is locked by nuts after penetrating through the bolts. Such a connection has several disadvantages:
1. the operation is inconvenient, and most earth bolts have been installed the nut for convenience, and during ground wire ground connection, need take off the nut after, install the earth connection and install nut locking again.
2. There is the potential safety hazard to equipment, and tiny metal object such as nut and gasket takes place to drop easily when taking off, if drop tiny metal object to electrical equipment carelessly, it is very inconvenient to seek, has the risk that makes equipment short circuit.
3. There is the potential safety hazard to maintenance work, and the back is connect to the ground wire, causes pulling to the ground wire easily in the maintenance work, and it is not hard up to take place the ground point nut easily for a long time, causes the ground fault, brings the potential safety hazard to maintenance work.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a grounding installation device, which is firmly connected and not easily lost, and can avoid potential safety hazards in maintenance work due to poor grounding.
Another object of an embodiment of the present invention is to provide a grounding device, which is firmly connected, and can reduce the risk of short circuit of the device, and can also improve the conductivity of the grounding screw and the ground wire terminal.
To achieve the purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, there is provided a ground mounting device comprising a ground clip disposed about a periphery of a ground screw, the ground clip being electrically conductive, and the grounding wire clamp comprises a first end far away from the grounding copper bar and a second end close to the grounding copper bar, the radial cross-sectional area of the first end is larger than that of the second end, the first end is used for connecting a ground wire grounding end, a spiral clamping piece is fixedly arranged on the outer side of the first end, locking rings are movably arranged on the outer sides of the second end and the spiral clamping piece, the first end protrudes out of the locking ring along the length direction of the grounding screw rod, the locking ring can rotate relative to the screw clamp and the grounding wire clamp, a thread structure is arranged between the screw clamp and the locking ring, when the locking ring rotates relative to the spiral clamping piece, the spiral clamping piece can be driven to clamp or loosen the grounding screw rod.
As a preferable scheme of the ground installation device, a clamping groove structure is arranged between the ground clip and the locking ring, the ground clip can move along the length direction of the ground screw relative to the locking ring, and when the locking ring rotates relative to the screw clamp, the screw clamp can be driven to drive the ground clip to approach or depart from the locking ring.
As a preferable scheme of the grounding installation device, a shell is movably arranged on the outer side of the spiral clamp, the shell is movably connected with the locking ring and can limit the spiral clamp to rotate, a pressure sensor is arranged between the spiral clamp and the grounding screw rod, a controller is arranged in the shell, a warning unit is arranged on the surface of the shell, and the pressure sensor and the warning unit are respectively in communication connection with the controller.
As a preferred solution of the ground mounting means, the warning unit comprises an indicator light and/or a buzzer.
As a preferable scheme of the grounding installation device, a current sensor is arranged between the screw clamp and the grounding screw rod, the current sensor is in communication connection with the controller, and the current sensor is arranged on the grounding screw rod.
As a preferable scheme of the grounding installation device, a power module is arranged in the housing, a resistance unit is arranged between the power module and the grounding screw, and the power module, the resistance unit and the grounding screw are electrically connected in sequence.
As a preferable mode of the ground mounting device, the screw clamp includes a first portion near the first end, and a second portion far from the first end, the second portion includes a plurality of clamping portions, the clamping portions are fixedly connected with the first portion, each clamping portion is disposed at an interval, and when the locking ring rotates relative to the screw clamp, each clamping portion can be driven to approach or separate from each other.
As a preferable mode of the ground mounting means, a plurality of handles are provided outside the locking ring.
As a preferable mode of the ground mounting means, a rough surface structure is provided on an outer side of the locking ring.
In a second aspect, a grounding device is provided, which includes a grounding copper bar, a grounding screw rod and the grounding installation device, wherein one end of the grounding screw rod is arranged in the grounding copper bar, and the other end of the grounding screw rod is arranged in the grounding installation device.
The embodiment of the invention has the beneficial effects that:
the grounding wire clamp is arranged on the periphery of the grounding screw rod and can conduct electricity, and the grounding wire clamp, the spiral clamping piece and the locking ring form a wiring installation device. The grounding wire clamp comprises a first end far away from the grounding copper bar and a second end close to the grounding copper bar, the radial sectional area of the first end is larger than that of the second end, the first end can be connected with a grounding wire wiring end, a spiral clamping piece is fixedly arranged on the outer side of the first end, locking rings are movably arranged on the outer side of the second end and the outer side of the spiral clamping piece, and the first end protrudes out of the locking rings along the length direction of the grounding screw, so that the contact area between the grounding screw and the grounding wire wiring end can be increased through the first end, and the conductive capacity between the grounding screw and the grounding wire wiring end is improved. In addition, the locking ring can rotate relative to the spiral clamping piece and the grounding wire clamp, a thread structure is arranged between the spiral clamping piece and the locking ring, and when the locking ring rotates relative to the spiral clamping piece, the spiral clamping piece can be driven to clamp or loosen the grounding screw rod, so that the grounding screw rod can be locked and loosened instead of a nut. Therefore, the grounding installation device provided by the embodiment of the invention is firm in connection, can avoid potential safety hazards of maintenance work caused by poor grounding, is not easy to lose, and reduces the risk of short circuit of equipment.
Drawings
The invention is explained in more detail below with reference to the figures and examples.
Fig. 1 is a schematic cross-sectional view of a ground mounting device according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a ground mounting device according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a circuit connection of the ground mounting device according to an embodiment of the present invention.
Fig. 4 is a schematic view of an assembly structure of the grounding device according to an embodiment of the present invention.
In the figure:
1. a ground mounting device; 11. a ground clamp; 111. a first end; 112. a second end; 12. a screw clamp; 121. a first portion; 122. a second portion; 1221. a clamping portion; 13. locking a ring; 131. a handle; 132. a rough surface structure; 14. a thread structure; 15. a slot structure; 16. a housing; 171. a pressure sensor; 172. a controller; 173. a warning unit; 174. a current sensor; 175. a power supply module; 176. a resistance unit; 2. a ground screw; 3. a ground copper bar; 4. and the ground wire is grounded.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, an embodiment of the present invention provides a ground mounting device 1 including a ground clip 11 disposed on the outer periphery of a ground screw 2, the ground clip 11 being electrically conductive, the ground clamp 11 comprises a first end 111 far away from the ground copper bar 3 and a second end 112 close to the ground copper bar 3, the radial sectional area of the first end 111 is larger than that of the second end 112, the first end 111 is used for connecting with a ground wire ground terminal 4, a spiral clamp 12 is fixedly arranged on the outer side of the first end 111, a locking ring 13 is movably arranged on the outer side of the second end 112 and the outer side of the spiral clamp 12, the first end 111 protrudes out of the locking ring 13 along the length direction of the ground screw 2, the locking ring 13 can rotate relative to the spiral clamp 12 and the ground clamp 11, a thread structure 14 is arranged between the spiral clamp 12 and the locking ring 13, and when the locking ring 13 rotates relative to the spiral clamp 12, the spiral clamp 12 can be driven to clamp or loosen the ground screw 2.
According to the embodiment of the invention, the grounding wire clamp 11 is arranged on the periphery of the grounding screw rod 2, the grounding wire clamp 11 can conduct electricity, and the wiring installation device is formed by the grounding wire clamp 11, the spiral clamping piece 12 and the locking ring 13. The ground clip 11 includes a first end 111 far away from the ground copper bar 3 and a second end 112 close to the ground copper bar 3, a radial sectional area of the first end 111 is larger than a radial sectional area of the second end 112, the first end 111 can be connected to a ground wire terminal, a screw clip 12 is fixedly disposed on an outer side of the first end 111, locking rings 13 are movably disposed on an outer side of the second end 112 and an outer side of the screw clip 12, and the first end 111 protrudes out of the locking rings 13 along a length direction of the ground screw 2, so that the ground mounting device 1 of the embodiment of the invention can enhance a contact area between the ground screw 2 and the ground wire terminal through the first end 111, and improve a conductive capability between the ground screw 2 and the ground wire terminal. In addition, the locking ring 13 can rotate relative to the screw clamp 12 and the ground clamp 11, a thread structure 14 is arranged between the screw clamp 12 and the locking ring 13, and when the locking ring 13 rotates relative to the screw clamp 12, the screw clamp 12 can be driven to clamp or loosen the ground screw 2, so that the ground screw 2 can be locked and loosened instead of a nut. Therefore, the grounding installation device 1 provided by the embodiment of the invention is firm in connection, can avoid potential safety hazards of maintenance work caused by poor grounding, is not easy to lose, and reduces the risk of short circuit of equipment.
In particular, with continued reference to fig. 1, a locking groove structure 15 is provided between the ground clip 11 and the locking ring 13, the ground clip 11 can move relative to the locking ring 13 along the length direction of the ground screw 2 (as indicated by the arrow shown in fig. 1), and the ground clip 11 fixedly disposed with the screw clamp 12 can be driven to approach or separate from the locking ring 13 when the locking ring 13 rotates relative to the screw clamp 12. At this time, the ground wire terminal can be clamped in the clamping groove of the ground clamp 11 and the locking ring 13, and the ground clamp 11 can be clamped to complete the wire connection when approaching the locking ring 13.
In one embodiment, referring to fig. 1 and 3, a housing 16 is movably disposed on the outer side of the screw clamp 12, the housing 16 is movably connected to the locking ring 13, and the housing 16 can limit the rotation of the screw clamp 12, that is, the housing 16 can hold the screw clamp 12 against rotation when the locking ring 13 rotates relative to the housing 16, so that the screw clamp 12 can move along the extending direction of the thread structure 14 (refer to the direction of the arrow shown in fig. 1), and the housing 16 can be a hand-held portion of an operator for holding the locking ring 13 by the other hand and rotating the locking ring 13. A pressure sensor 171 is arranged between the screw clamp 12 and the ground screw 2, a controller 172 is arranged in the housing 16, an alarm unit 173 is arranged on the surface of the housing 16, and the pressure sensor 171 and the alarm unit 173 are respectively connected with the controller 172 in a communication way. The embodiment can detect the pressure between the screw clamp 12 and the ground screw 2, and when the pressure between the screw clamp 12 and the ground screw 2 is greater than the preset threshold, the warning unit 173 can send warning information to remind an operator to stop further operation of screwing the locking ring 13, thereby avoiding damage to the ground mounting device 1 and the ground screw 2 according to the embodiment of the invention.
Further, the warning unit 173 includes an indicator lamp, or a buzzer, or an indicator lamp and a buzzer. The warning light is sent out through the indicating lamp, or the buzzer is sent out through the buzzer, so that an operator can directly obtain warning information.
In another embodiment, referring to fig. 1 and 3, a current sensor 174 is disposed between the screw clamp 12 and the ground screw 2, the current sensor 174 is in communication with the controller 172, and the current sensor 174 is disposed on the ground screw 2. The current sensor 174 of the present embodiment can detect whether or not a current is present on the ground screw 2, and when a current is detected, a leakage may occur, and the warning unit 173 can send warning information in time.
Preferably, referring to fig. 3, a power module 175 is disposed in the housing 16, a resistance unit 176 is disposed between the power module 175 and the ground screw 2, and the power module 175, the resistance unit 176, the current sensor 174 and the ground screw 2 are electrically connected in sequence. The power module 175 of this embodiment can provide the electric energy, reduces the electric current size through resistance unit 176 and supplies power to the ground screw 2, and rethread current sensor 174 detects the electric current size of ground screw 2, and when the electric current value was less than preset threshold value, it was good to judge the contact of ground screw 2 and ground copper bar 3, otherwise explains that ground screw 2 and ground copper bar 3 empty joint need refute and connect.
In another embodiment, referring to fig. 1 and 2, the screw clamp 12 includes a first portion 121 near the first end 111 and a second portion 122 far from the first end 111, the second portion 122 includes a plurality of clamping portions 1221, the clamping portions 1221 are fixedly connected to the first portion 121, each clamping portion 1221 is spaced apart from the other clamping portion, the screw clamp 12 can be driven to move relative to the housing 16 when the locking ring 13 rotates relative to the screw clamp 12, and each clamping portion 1221 can be driven to move closer to or away from each other under the restriction of the housing 16. Therefore, when each of the clamping portions 1221 is close to each other, the earth screw 2 can be clamped and fixed, and conversely, the earth screw 2 is released. In the present embodiment, the efficiency of clamping or unclamping can be improved by providing the clamping portion 1221.
Optionally, referring to fig. 1, a plurality of handles 131 are disposed outside the locking ring 13, and the handles 131 can extend the force arm of the locking ring 13 relative to the ground screw 2, so as to achieve the effects of saving labor and facilitating holding.
As another alternative, referring to fig. 2, the outer side of the locking ring 13 is provided with a rough surface structure 132, and the rough surface structure 132 can increase the friction force between the operator's hand and the locking ring 13 to prevent the locking ring 13 from slipping.
Preferably, the ground clip 11 is made of copper, which has high conductivity and high hardness.
Referring to fig. 4, an embodiment of the present invention further provides a grounding device, which includes a grounding copper bar 3, a grounding screw 2 and the grounding installation apparatus 1 according to any of the above embodiments, wherein one end of the grounding screw 2 is disposed in the grounding copper bar 3, the other end of the grounding screw is disposed in the grounding installation apparatus 1, and the grounding installation apparatus 1 can be connected to a ground wire terminal to achieve grounding connection. The ground mounting device 1 in this embodiment may have the same structure and achieve the same effect as the ground mounting device 1 in the above embodiment, and the description of this embodiment is omitted.
In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in a descriptive sense or a positional relationship based on the orientation shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A grounding installation device is characterized by comprising a grounding wire clamp arranged on the periphery of a grounding screw rod, wherein the grounding wire clamp can conduct electricity, and the grounding wire clamp comprises a first end far away from the grounding copper bar and a second end close to the grounding copper bar, the radial cross-sectional area of the first end is larger than that of the second end, the first end is used for connecting a ground wire grounding end, a spiral clamping piece is fixedly arranged on the outer side of the first end, locking rings are movably arranged on the outer sides of the second end and the spiral clamping piece, the first end protrudes out of the locking ring along the length direction of the grounding screw rod, the locking ring can rotate relative to the screw clamp and the grounding wire clamp, a thread structure is arranged between the screw clamp and the locking ring, when the locking ring rotates relative to the spiral clamping piece, the spiral clamping piece can be driven to clamp or loosen the grounding screw rod.
2. The ground mounting assembly of claim 1, wherein a locking groove structure is disposed between said ground clip and said locking ring, said ground clip being movable relative to said locking ring along the length of said ground screw, said locking ring being rotatable relative to said clamping screw to actuate said clamping screw to move said ground clip closer to or farther away from said locking ring.
3. The grounding installation device of claim 1, wherein a housing is movably disposed outside the screw clamp, the housing is movably connected to the locking ring, the housing can limit the screw clamp from rotating, a pressure sensor is disposed between the screw clamp and the grounding screw, a controller is disposed in the housing, a warning unit is disposed on a surface of the housing, and the pressure sensor and the warning unit are respectively in communication connection with the controller.
4. A ground mounting device according to claim 3, characterized in that the warning unit comprises an indicator light and/or a buzzer.
5. The grounding mounting device of claim 3, wherein a current sensor is disposed between the screw clamp and the grounding screw, the current sensor being in communication with the controller, the current sensor being disposed on the grounding screw.
6. The grounding installation device of claim 5, wherein a power module is arranged in the housing, a resistance unit is arranged between the power module and the grounding screw, and the power module, the resistance unit and the grounding screw are electrically connected in sequence.
7. The grounding assembly of claim 1, wherein said screw clamp includes a first portion adjacent to said first end and a second portion remote from said first end, said second portion including a plurality of clamping portions, said clamping portions being fixedly connected to said first portion, each of said clamping portions being spaced apart from one another, said locking ring being capable of urging each of said clamping portions toward or away from one another upon rotation of said locking ring relative to said screw clamp.
8. A ground mounting means according to claim 1, wherein a plurality of handles are provided on the outside of the locking ring.
9. A ground mounting means according to claim 1, wherein the locking ring is provided with a roughened surface configuration on the outer side thereof.
10. An earthing device, comprising an earthing copper bar, an earthing screw and the earthing mounting device of any one of claims 1 to 9, wherein one end of the earthing screw is disposed in the earthing copper bar, and the other end is disposed in the earthing mounting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011173376.4A CN112332118B (en) | 2020-10-28 | 2020-10-28 | Grounding installation device and grounding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011173376.4A CN112332118B (en) | 2020-10-28 | 2020-10-28 | Grounding installation device and grounding equipment |
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| Publication Number | Publication Date |
|---|---|
| CN112332118A CN112332118A (en) | 2021-02-05 |
| CN112332118B true CN112332118B (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011173376.4A Active CN112332118B (en) | 2020-10-28 | 2020-10-28 | Grounding installation device and grounding equipment |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113258411B (en) * | 2021-05-06 | 2023-01-20 | 国网山东省电力公司夏津县供电公司 | Plug-in type grounding connection device with loosening alarm function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202997061U (en) * | 2012-11-19 | 2013-06-12 | 昆明地铁运营有限公司 | Contact-rail ground-wire connector of track traffic contact rail power supply system |
| CN105186152A (en) * | 2015-10-17 | 2015-12-23 | 国家电网公司 | High altitude grounding device grounding clamp mechanism |
| CN106505327A (en) * | 2016-12-08 | 2017-03-15 | 中国人民解放军63926部队 | A kind of copper facing round steel drop bar rapid vertical laying apparatu and its construction method |
-
2020
- 2020-10-28 CN CN202011173376.4A patent/CN112332118B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202997061U (en) * | 2012-11-19 | 2013-06-12 | 昆明地铁运营有限公司 | Contact-rail ground-wire connector of track traffic contact rail power supply system |
| CN105186152A (en) * | 2015-10-17 | 2015-12-23 | 国家电网公司 | High altitude grounding device grounding clamp mechanism |
| CN106505327A (en) * | 2016-12-08 | 2017-03-15 | 中国人民解放军63926部队 | A kind of copper facing round steel drop bar rapid vertical laying apparatu and its construction method |
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| CN112332118A (en) | 2021-02-05 |
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