CN219737728U - Single-phase grounding alarm device for high-voltage cable of power distribution room - Google Patents
Single-phase grounding alarm device for high-voltage cable of power distribution room Download PDFInfo
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- CN219737728U CN219737728U CN202223520471.4U CN202223520471U CN219737728U CN 219737728 U CN219737728 U CN 219737728U CN 202223520471 U CN202223520471 U CN 202223520471U CN 219737728 U CN219737728 U CN 219737728U
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- copper bar
- alarm device
- voltage cable
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 71
- 229910052802 copper Inorganic materials 0.000 claims abstract description 71
- 239000010949 copper Substances 0.000 claims abstract description 71
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 238000003915 air pollution Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
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Abstract
The utility model relates to a single-phase grounding alarm device of a high-voltage cable of a power distribution room, which comprises two grounding copper bars which are parallel to each other and are arranged in the power distribution room at intervals, wherein the two grounding copper bars are electrically connected to the same step voltage detection unit, the step voltage detection unit is electrically connected with a communication unit, an alarm unit and a power supply unit respectively, the step voltage detection unit, the communication unit, the alarm unit and the power supply unit are all arranged on an insulating box body, and a threading device for threading connecting lines of the grounding copper bars and the step voltage detection unit is arranged at the lower end of the insulating box body; the end part of the grounding copper bar is arranged at the lower end of the threading device in a penetrating way, and the grounding copper bar is electrically connected with the connecting circuit through the elastic connecting piece; the grounding copper bar is connected with the threading device through the elastic connecting piece, so that the copper bar can be connected conveniently in site construction, the traditional welding mode is avoided, the site welding is avoided, the construction efficiency is improved, and the air pollution in the welding process is avoided.
Description
Technical Field
The utility model belongs to the technical field of single-phase grounding detection of a power distribution room, and particularly relates to a single-phase grounding alarm device for a high-voltage cable of the power distribution room.
Background
The utility model discloses a single-phase grounding alarm device of a high-voltage cable of a power distribution room, which comprises a step voltage detection unit and a communication unit which are arranged in the power distribution room, and an alarm unit which is arranged outside a door of the power distribution room, wherein a first grounding copper bar and a second grounding copper bar which are parallel to each other and have a space are fixedly arranged on the ground of the power distribution room, the second grounding copper bar is positioned on one side close to the high-voltage cabinet and the power distribution transformer, and the first grounding copper bar and the second grounding copper bar are electrically connected with the step voltage detection unit; the utility model has convenient use, can detect the step voltage in the distribution room in real time, judge whether the single-phase earth fault of the high-voltage cable of the distribution room occurs, alarm in time, warn the operation and maintenance personnel not to enter the distribution room without unauthorized, effectively prevent the operation and maintenance personnel from opening and entering the distribution room when the fault occurs, and stop the occurrence of electric shock accidents of the step voltage; however, this utility model has the following drawbacks: when the grounding copper bar is installed on site, a traditional welding process is adopted, and the grounding copper bar needs to be welded on site, so that the construction is inconvenient, and on the one hand, the air is polluted to a certain extent in the welding process.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the single-phase grounding alarm device for the high-voltage cable of the power distribution room, which is convenient for field connection of the grounding copper bars and does not pollute the environment.
The technical scheme of the utility model is as follows:
the utility model provides a distribution room high voltage cable single phase grounding alarm device, includes two ground connection copper bars that are parallel to each other and have the interval setting in the distribution room, two ground connection copper bars all are electrically connected on same step voltage detection unit, step voltage detection unit is connected with communication unit, alarm unit and power supply unit electricity respectively, step voltage detection unit, communication unit, alarm unit and power supply unit all install on insulating box, the lower extreme of insulating box is provided with the threading device that is used for wearing to establish ground connection copper bar and step voltage detection unit connecting wire; the end part of the grounding copper bar is arranged at the lower end of the threading device in a penetrating way, and the grounding copper bar is electrically connected with the connecting circuit through the elastic connecting piece.
Compared with the prior art, the header box provided by the utility model has the beneficial effects that:
the grounding copper bar is connected with the threading device through the elastic connecting piece, so that the copper bar can be connected conveniently in site construction, the traditional welding mode is avoided, the site welding is avoided, the construction efficiency is improved, and the air pollution in the welding process is avoided.
Further, the elastic connecting piece comprises a left arc-shaped section and a right arc-shaped section which are concentric and have the same diameter, the left arc-shaped section is hinged with one end of the right arc-shaped section, the left arc-shaped section is arranged opposite to the inner cambered surface of the right arc-shaped section, the opposite surfaces of the left arc-shaped section and the right arc-shaped section are connected with an elastic spring, and when the elastic spring is in a normal state, the other ends of the left arc-shaped section and the right arc-shaped section are not attached; thereby realizing the quick connection with the grounding copper bar through an elastic connecting piece which can be opened and closed.
Further, the left arc-shaped section and the right arc-shaped section are hinged on a conductive plate through a pin shaft, and the other end of the conductive plate is communicated with a connecting circuit; thereby ensuring the conduction between the elastic connecting piece and the connecting line.
Further, an inserting groove is formed in one end, penetrating into the threading device, of the grounding copper bar, and the elastic connecting piece can be clamped in the inserting groove; thereby realizing the connection between the elastic connecting piece and the grounding copper bar.
Further, the inserting groove comprises an opening part and an inserting part, the opening part is communicated with the inserting part, the width of the opening part is smaller than the diameter of a circle formed by the left arc-shaped section and the right arc-shaped section, and the arc length of the arc surface of the inserting part is not smaller than 2/3 of the circumference of the circle formed by the left arc-shaped section and the right arc-shaped section; the grounding copper bar can be prevented from being separated from the elastic connecting piece when no external force is applied.
Further, an arc chamfer is arranged at the inlet of the opening part of the grounding copper bar; thereby being convenient for the butt joint of the grounding copper bar and the elastic connecting piece.
Further, the connection part of the opening part of the grounding copper bar and the plug-in part is in arc transition; thereby ensuring that the elastic connecting piece smoothly enters the plug-in part from the opening part.
Further, the threading device comprises a vertical section laid along the wall surface of the power distribution room and a U-shaped section installed on the ground, wherein the vertical section is communicated with the U-shaped section, and the ends of the two grounding copper bars are respectively penetrated at two ports of the U-shaped section.
Further, the U-shaped section comprises a bottom shell and a shell cover, and the shell cover is buckled on the bottom shell; thereby being convenient for opening the U-shaped section and overhauling the connecting part.
Further, a vertical plate is arranged at the port of the bottom shell, and a conductive plate is arranged on the vertical plate in a penetrating manner; so that the fixability of the conductive plate can be ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the internal structure of the U-shaped section in the utility model;
fig. 3 is an enlarged schematic view of part a of fig. 2.
The novel high-voltage power supply comprises a grounding copper bar, an insulating box body, a vertical section, a U-shaped section, a left arc-shaped section, a right arc-shaped section, an elastic spring, a conductive plate, an opening and a plugging part, wherein the grounding copper bar is arranged at the bottom of the insulating box body, the insulating box body is connected with the insulating box body, the vertical section, the U-shaped section, the left arc-shaped section, the right arc-shaped section, the elastic spring, the conductive plate and the plugging part are arranged at the bottom of the insulating box body, the opening and the plugging part are respectively arranged at the.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-2, the single-phase grounding alarm device for the high-voltage cable of the power distribution room comprises two grounding copper bars 1 which are parallel to each other and are arranged in the power distribution room at intervals, wherein the two grounding copper bars 1 are electrically connected to the same step voltage detection unit, the step voltage detection unit is electrically connected with a communication unit, an alarm unit and a power supply unit respectively, the step voltage detection unit, the communication unit, the alarm unit and the power supply unit are all arranged on an insulating box body 2, and a threading device for threading connecting lines of the grounding copper bars and the step voltage detection unit is arranged at the lower end of the insulating box body 2; the end part of the grounding copper bar 1 is arranged at the lower end of the threading device in a penetrating way, and the grounding copper bar 1 is electrically connected with a connecting circuit through an elastic connecting piece;
the working principle of the single-phase grounding alarm device of the high-voltage cable of the power distribution room is the prior art, and the technical scheme disclosed by the patent specification of the utility model, namely a first grounding copper bar and a second grounding copper bar in the patent, can be seen in the patent publication number CN207424152U and the name of the single-phase grounding alarm device of the high-voltage cable of the power distribution room; the whole threading device provided by the utility model is made of insulating materials, the quick disassembly of the grounding copper bar 1 and the connecting circuit can be realized through the elastic connecting piece, and the grounding copper bar 1 and the connecting circuit can be prevented from being separated when no external force is applied.
As shown in fig. 2, the elastic connection member includes a left arc-shaped section 5 and a right arc-shaped section 6 which are concentric and have the same diameter, the left arc-shaped section 5 is hinged with one end of the right arc-shaped section 6, the left arc-shaped section 5 is opposite to the intrados of the right arc-shaped section 6, the opposite surfaces of the left arc-shaped section 5 and the right arc-shaped section 6 are connected with an elastic spring 7, and when the elastic spring 7 is in a normal state, the other ends of the left arc-shaped section 5 and the right arc-shaped section 6 are not attached; when the elastic connecting piece is connected with the grounding copper bar 1, the left arc-shaped section 5 of the elastic connecting piece is not attached to one end of the right arc-shaped section 6, so that when the left arc-shaped section 5 is extruded with the right arc-shaped section 6, the elastic spring 7 is compressed, the left arc-shaped section 5 is gradually close to one end attached to the right arc-shaped section 6, after the elastic connecting piece is connected with the grounding copper bar 1, the extrusion force received by the elastic connecting piece disappears, under the elastic action of the elastic spring 7, the left arc-shaped section 5 and the right arc-shaped section 6 are away from each other, and under the elastic action of the elastic spring 7, the left arc-shaped section 5 is tightly connected with the grounding copper bar 1 with the right arc-shaped section 6.
As shown in fig. 2 and 3, the left arc-shaped section 5 and the right arc-shaped section 6 are hinged on a conductive plate 8 through a pin shaft, and the other end of the conductive plate 8 is communicated with a connecting circuit; the conducting plate 8, the left arc-shaped section 5, the right arc-shaped section 6 and the pin shaft are conducting parts, the pin shaft ensures that the left arc-shaped section 5 and the right arc-shaped section 6 rotate and simultaneously conducts the left arc-shaped section 5 and the right arc-shaped section 6 with the conducting plate 8, and therefore the elastic connecting piece is conducted with the connecting circuit through the conducting plate 8.
As shown in fig. 2 and 3, an insertion groove is formed at one end of the grounding copper bar 1 penetrating into the threading device 1, and the elastic connecting piece can be clamped in the insertion groove; the inserting groove comprises an opening part 9 and an inserting part 10, the opening part 9 is communicated with the inserting part 10, the width of the opening part 9 is smaller than the diameter of a circle formed by the left arc-shaped section 5 and the right arc-shaped section 6, and the arc length of the arc surface of the inserting part 10 is not smaller than 2/3 of the circumference of the circle formed by the left arc-shaped section 5 and the right arc-shaped section 6; when inserting ground connection copper bar 1 in threading device 1, in the in-process of opening 9 gradually with left arc section 5 and right arc section 6 contact, left arc section 5 and right arc section 6 are constantly extruded, and make left arc section 5 and right arc section 6 constantly be close to, elastic spring 7 will be compressed this moment, after left arc section 5 and right arc section 6 get into the inside of grafting portion 10 through opening 9, because the diameter of grafting portion 10 is greater than the width of opening 9, left arc section 5 and right arc section 6 will not receive the extrusion force this moment, left arc section 5 and right arc section 6 are opened under the effect of elastic spring 7 elastic force, and elastic spring 7 extrudes left arc section 5 and right arc section 6 and the inside laminating of grafting portion 10, fix ground connection copper bar 1 and elastic connection spare on the one hand, on the one hand can guarantee that ground connection copper bar 1 and elastic connection spare switch on.
As shown in fig. 2 and 3, the entrance of the opening 9 of the grounding copper bar 1 is provided with an arc chamfer, and the arc chamfer can ensure that the elastic connecting piece smoothly enters the opening 9, so as to avoid the condition of jamming caused by the existence of the edge angle.
As shown in fig. 2 and 3, the connection between the opening 9 of the grounding copper bar 1 and the plugging portion 10 is in an arc transition, and the arrangement of the arc transition can ensure that the elastic connection member smoothly enters the plugging portion 10 from the opening 9.
As shown in fig. 1, the threading device comprises a vertical section 3 laid along the wall surface of the power distribution room and a U-shaped section 4 installed on the ground, wherein the vertical section 3 is communicated with the U-shaped section 4, and the ends of two grounding copper bars 1 are respectively penetrated at two ports of the U-shaped section 4; the threading device adopts the constitution mode of vertical section 3 and U section 4, and the connecting line of being convenient for is connected into insulating box 2 from ground.
As shown in fig. 1, the U-shaped section 4 includes a bottom shell 401 and a shell cover 402, and the shell cover 402 is fastened on the bottom shell 401; thereby facilitating the maintenance operation of the connection part of the elastic connecting piece and the grounding copper bar 1.
As shown in fig. 2 and 3, a riser 403 is disposed at a port of the bottom shell 401, and the riser 403 is provided with a conductive plate 8; the riser 403 is made of insulating material, and the conductive plate 8 can be adhered to the riser 403 by using insulating glue, so that the ground copper bar 1 can be smoothly connected with the elastic connecting piece when the ground copper bar 1 is inserted.
As shown in fig. 3, in order to avoid that the elastic connection piece shakes left and right with its hinge point with the conductive plate 8 to affect the insertion of the grounding copper bar 1, the left and right sides of the conductive plate 8 corresponding to one end of the elastic connection piece are provided with limiting blocks, and a side of the limiting block facing the elastic connection piece is an arc surface matched with the arc surface of the left arc segment 5 and the right arc segment 6.
According to the single-phase grounding alarm device for the high-voltage cable of the distribution room, which is provided by the utility model, smooth and rapid installation of the grounding copper bar 1 during construction can be ensured, only one end of the grounding copper bar 1 with a plugging slot is required to be inserted into the end part of the U-shaped section 4, in the plugging process, the left arc-shaped section 5 and the right arc-shaped section 6 of the elastic connecting piece are extruded firstly, the elastic spring 7 contracts, in the process that the left arc-shaped section 5 and the right arc-shaped section 6 are continuously close to each other, the elastic connecting piece continuously enters the opening part 9, when the grounding copper bar 1 is continuously plugged, the left arc-shaped section 5 and the right arc-shaped section 6 enter the plugging part 10, at the moment, the left arc-shaped section 5 and the right arc-shaped section 6 are instantly released under the elastic force of the elastic spring 7, and the left arc-shaped section 5 and the right arc-shaped section 6 are not separated from the plugging part of the grounding copper bar 1 when the grounding copper bar 1 is not pulled, and therefore tight connection and fixation of the elastic connecting piece and the grounding copper bar 1 can be ensured; thereby realizing the smooth connection of the grounding copper bar 1 on the construction site and avoiding the traditional welding process.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (10)
1. The utility model provides a distribution room high voltage cable single phase grounding alarm device, includes two ground connection copper bars that are parallel to each other and have the interval setting in the distribution room, two ground connection copper bars all are electrically connected on same step voltage detection unit, step voltage detection unit is connected with communication unit, alarm unit and power supply unit electricity respectively, step voltage detection unit, communication unit, alarm unit and power supply unit all install on insulating box, the lower extreme of insulating box is provided with the threading device that is used for wearing to establish ground connection copper bar and step voltage detection unit connecting wire; the method is characterized in that: the end part of the grounding copper bar is arranged at the lower end of the threading device in a penetrating way, and the grounding copper bar is electrically connected with the connecting circuit through the elastic connecting piece.
2. The switchgear high voltage cable single phase grounding alarm device of claim 1, wherein: the elastic connecting piece comprises a left arc-shaped section and a right arc-shaped section which are concentric and have the same diameter, wherein the left arc-shaped section is hinged with one end of the right arc-shaped section, the left arc-shaped section is arranged opposite to the inner cambered surface of the right arc-shaped section, an elastic spring is connected with the opposite surface of the right arc-shaped section, and when the elastic spring is in a normal state, the other ends of the left arc-shaped section and the right arc-shaped section are not attached.
3. The switchgear high voltage cable single phase grounding alarm device of claim 2, wherein: the left arc-shaped section and the right arc-shaped section are hinged on a conductive plate through a pin shaft, and the other end of the conductive plate is communicated with a connecting circuit.
4. The switchgear high voltage cable single phase grounding alarm device of claim 2, wherein: the grounding copper bar penetrates into one end in the threading device to form a plugging groove, and the elastic connecting piece can be clamped in the plugging groove.
5. The switchgear high-voltage cable single-phase grounding alarm device of claim 4, wherein: the plug-in groove comprises an opening part and a plug-in part, wherein the opening part is communicated with the plug-in part, the width of the opening part is smaller than the diameter of a circle formed by the left arc-shaped section and the right arc-shaped section, and the arc length of the arc surface of the plug-in part is not smaller than 2/3 of the circumference of the circle formed by the left arc-shaped section and the right arc-shaped section.
6. The switchgear high-voltage cable single-phase grounding alarm device of claim 5, wherein: an arc chamfer is arranged at the inlet of the opening part of the grounding copper bar.
7. The switchgear high-voltage cable single-phase grounding alarm device of claim 5, wherein: the connection part of the opening part and the plug-in part of the grounding copper bar is in arc transition.
8. The switchgear high-voltage cable single-phase grounding alarm device as claimed in any one of claims 1-7, wherein: the threading device comprises a vertical section laid along the wall surface of the power distribution room and a U-shaped section installed on the ground, wherein the vertical section is communicated with the U-shaped section, and the ends of the two grounding copper bars are respectively penetrated at two ports of the U-shaped section.
9. The switchgear high voltage cable single phase grounding alarm device of claim 8, wherein: the U-shaped section comprises a bottom shell and a shell cover, and the shell cover is buckled on the bottom shell.
10. The switchgear high voltage cable single phase grounding alarm device of claim 9, wherein: a vertical plate is arranged at the port of the bottom shell, and a conductive plate is arranged on the vertical plate in a penetrating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223520471.4U CN219737728U (en) | 2022-12-19 | 2022-12-19 | Single-phase grounding alarm device for high-voltage cable of power distribution room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223520471.4U CN219737728U (en) | 2022-12-19 | 2022-12-19 | Single-phase grounding alarm device for high-voltage cable of power distribution room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219737728U true CN219737728U (en) | 2023-09-22 |
Family
ID=88063150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223520471.4U Active CN219737728U (en) | 2022-12-19 | 2022-12-19 | Single-phase grounding alarm device for high-voltage cable of power distribution room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219737728U (en) |
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2022
- 2022-12-19 CN CN202223520471.4U patent/CN219737728U/en active Active
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