CN112652896A - Electric power and communication sharing iron tower complete set current-limiting grounding device - Google Patents
Electric power and communication sharing iron tower complete set current-limiting grounding device Download PDFInfo
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- CN112652896A CN112652896A CN202011577606.3A CN202011577606A CN112652896A CN 112652896 A CN112652896 A CN 112652896A CN 202011577606 A CN202011577606 A CN 202011577606A CN 112652896 A CN112652896 A CN 112652896A
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- iron tower
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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
Abstract
The invention discloses a complete set of current-limiting grounding device of a power and communication sharing iron tower, which aims at solving the problems that two sets of grounding devices are not electrically connected, when an overvoltage condition exists in a power line, a higher potential difference exists between the power iron tower and a grounding device of a communication base station, so that equipment and maintainers are easily threatened, and communication equipment is damaged in serious conditions. The invention solves the problem that communication equipment is damaged due to potential difference between two independent grounding systems under the condition of overvoltage of a power line, and meanwhile, the current limiting device is arranged on the grounding connection line on the inner wall of the fixing frame, so that when the grounding current exceeds a limit value, the fusing component can disconnect the grounding connection line, and the equipment of a communication base station is protected to operate safely.
Description
Technical Field
The invention relates to the technical field of power transmission line construction, in particular to a complete set of current-limiting grounding device for a power and communication sharing iron tower.
Background
At present, the transmission line is often influenced by lightning stroke in rainy season. In order to avoid the trip accident of the line caused by lightning strike, in the process of designing and constructing the line, a grounding body is usually arranged on the leg of a power transmission iron tower to lead lightning current into the ground. In the transmission line engineering of China, annular, ray and other grounding bodies are generally adopted. And the general annular and ray-shaped grounding body needs to occupy a larger area around the power transmission iron tower, so that during installation, firstly, primary excavation work needs to be carried out, the power transmission iron tower is fixed, then, secondary excavation is carried out around the power transmission iron tower, the grounding groove is arranged for installing the annular and ray-shaped grounding body, and the range of the grounding groove is larger than that of the base at the bottom of the power transmission iron tower. The transmission line of high-voltage transmission engineering is usually erected at the top of a higher iron tower, in order to avoid lightning strike, the upper part is provided with a lightning arrester, the bottom part is provided with grounding, and the grounding aims to guide the lightning into the ground, so that human beings are prevented from being injured, equipment is prevented from being damaged, and the like. At present, in the construction process of domestic high-voltage iron towers, when lines are designed, the high-voltage iron towers usually pass through regions with less population, and grounding conductors of the high-voltage iron towers usually adopt flat steel to be directly connected with the bottoms of the iron towers and then are buried into the ground by bypassing the foundation of the iron towers.
The existing power and communication sharing iron tower complete set current-limiting grounding device has the following problems: communication equipment who installs on present electric power iron tower, because by factors such as administrative authority, what electric power iron tower and communication base station's earthing device adopted is independent earthing device separately, there is not electrical connection between two sets of earthing device, when power line exists the overvoltage condition, there is higher potential difference between electric power iron tower and the communication base station earthing device, constitute the threat to equipment and maintainer easily, will lead to communication equipment to damage when serious, and current patent is difficult for solving this type of problem, therefore, need a whole set of current-limiting earthing device of electric power and communication sharing iron tower to solve above-mentioned problem urgently.
Disclosure of Invention
The invention provides a complete set of current-limiting grounding device for an electric power and communication sharing iron tower, which is based on the technical problems that the existing complete set of current-limiting grounding device for the electric power and communication sharing iron tower is not electrically connected, when an overvoltage condition exists in an electric power circuit, a higher potential difference exists between the electric power iron tower and a grounding device of a communication base station, so that the equipment and maintainers are easily threatened, and communication equipment is damaged in serious conditions.
In order to achieve the purpose, the invention adopts the following technical scheme:
a complete set of current-limiting grounding device for an electric power and communication sharing iron tower comprises a mounting frame, iron tower foundation components are fixedly connected to the peripheral inner walls of the mounting frame, a fixed rod is fixedly connected to the inner wall of one side of the mounting frame, one end of the fixed rod is fixedly connected with a mounting seat, a threaded rod is connected to the inner wall of the bottom of the mounting seat through a bearing, a threaded sleeve is in threaded connection with the outer wall of the threaded rod, the top end of the threaded sleeve is fixedly connected with a second bearing table, return springs distributed at equal intervals are fixedly connected to the inner wall of the second bearing table, a supporting pad is fixedly connected to one end of each return spring, a signal receiver is arranged on the outer wall of the opposite side of the supporting pad, fixing frames are arranged on the outer walls of the two sides of the mounting seat, current-limiting components are arranged, and a grounding wire is arranged on the inner wall of one side of the mounting frame, and one end of the grounding wire is fixedly connected to the outer wall of one side of the mounting seat.
As a still further scheme of the invention: the equal fixedly connected with mounting pad in four corners department of mount frame top outer wall, equal fixedly connected with bracing piece on the top outer wall of four mounting pads, the first bearing platform of top fixedly connected with of four bracing pieces.
As a still further scheme of the invention: the equal fixedly connected with earthing rod in four corners department of mounting bracket bottom outer wall, the equal fixedly connected with spacing pad in bottom of four earthing rods.
As a still further scheme of the invention: four equal fixedly connected with cone on the bottom outer wall of spacing pad, all be equipped with the mounting groove on the circumference outer wall of cone.
As a still further scheme of the invention: four all there is dispersion claw through hinged joint on the one side inner wall of mounting groove, all there is the connecting rod through hinged joint on the one side outer wall of four dispersion claws, and the equal sliding connection of one end of four connecting rods is on the inner wall of mounting groove.
As a still further scheme of the invention: the outer wall of each of two sides of the threaded sleeve is provided with a sliding groove, and the inner walls of the two sliding grooves are provided with sliding blocks.
As a still further scheme of the invention: two equal fixedly connected with gag lever post on one side outer wall of slider, the equal fixed connection of one end of two gag lever posts is on the outer wall of mount pad.
As a still further scheme of the invention: the mounting structure is characterized in that a mounting pipe is fixedly connected to the outer wall of one side of the mounting seat, the inner wall of the mounting pipe is connected with a rotating rod through a bearing, a first bevel gear is fixedly connected to one end of the rotating rod, and a knob is fixedly connected to the other end of the rotating rod.
As a still further scheme of the invention: and a second bevel gear is fixedly connected to the outer wall of the threaded rod close to the bottom end, and the first bevel gear is meshed with the second bevel gear.
As a still further scheme of the invention: the rain baffle is arranged on the outer wall of the top of the mounting frame and is of a hollow round platform structure.
The invention has the beneficial effects that:
1. the power iron tower is fixed on the periphery of the mounting frame by arranging the current limiting assembly, the fusing assembly and the grounding connecting wire, the communication grounding device is positioned on the inner side of the mounting frame, and the grounding device connects the power iron tower and the grounding device of the communication base station into a set of common grounding device by the grounding connecting wire, so that zero potential between the power iron tower and the grounding device of the communication base station is realized, the problem that communication equipment is damaged due to potential difference between two independent grounding systems under the condition that a power line is over-voltage is solved, meanwhile, the current limiting device is arranged on the grounding connecting wire on the inner wall of the mounting frame, and when the grounding current exceeds a limit value, the fusing assembly can disconnect the grounding connecting wire, so that the equipment of the communication base station is protected to run safely;
2. the knob, the first bevel gear and the second bevel gear are arranged, the knob can be rotated to drive the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate due to the fact that the first bevel gear is meshed with the second bevel gear, the threaded rod is driven to rotate, the threaded sleeve can move upwards due to the combined action of the limiting rod and the sliding block sliding groove, the signal receiver is adjusted to be lifted, and the stability of the communication base station is better maintained;
3. by arranging the cone, the dispersing claws and the connecting rods, the mounting frame is used as a main body of the electric power base device and the communication grounding device, the cones at four corners of the outer wall of the bottom of the mounting frame are inserted into soil, the limiting pads and the grounding posts are ensured to be just positioned on the ground, then the ground is compacted, so that when the iron tower receives wind power or vibration and other conditions, the dispersing claws on the outer wall of the cone can tightly grasp the soil, the cone shakes more, the ground grasping effect of the dispersing claws is more obvious, and the integral stability of the grounding device is ensured;
4. through setting up the weather shield, the hollow out construction of round platform form when setting up the weather shield at mount frame top, effectual with ground connection line, current-limiting subassembly and fusing subassembly protection in the below of weather shield, avoid in the rain in-process, the rainwater infiltrates power equipment, causes the short circuit of interconnecting link, has ensured electric power iron tower and communication base station's connection stability.
Drawings
Fig. 1 is a three-dimensional structure diagram of a power and communication sharing iron tower set current-limiting grounding device in an embodiment 1 according to the present invention;
fig. 2 is a front view of an embodiment 1 of a power and communication sharing tower set current-limiting grounding device according to the present invention;
fig. 3 is a schematic structural view of a fixing frame of an embodiment 1 of a power and communication sharing iron tower complete set current-limiting grounding device provided in the present invention;
fig. 4 is a schematic structural diagram of the inside of a threaded sleeve of embodiment 1 of a current-limiting grounding device set for a power and communication sharing tower according to the present invention;
fig. 5 is a perspective structural view of a power and communication sharing tower set current-limiting grounding device in embodiment 2 of the present invention.
In the figure: 1 dispersing claw, 2 limiting pads, 3 grounding rods, 4 mounting frames, 5 supporting rods, 6 first bearing tables, 7 signal receivers, 8 second bearing tables, 9 mounting pads, 10 knobs, 11 cones, 12 connecting rods, 13 limiting rods, 14 threaded sleeves, 15 threaded rods, 16 return springs, 17 sliding blocks, 18 sliding grooves, 19 current limiting assemblies, 20 fusing assemblies, 21 grounding connecting lines, 22 mounting pipes, 23 rotating rods, 24 fixing frames, 25 first bevel gears, 26 second bevel gears and 27 rain blocking plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-4, a complete set of current-limiting grounding device for power and communication sharing iron towers comprises a mounting frame 4, iron tower basic components are fixedly connected to the peripheral inner wall of the mounting frame 4, a fixed rod is fixedly connected to the inner wall of one side of the mounting frame 4, a mounting seat is fixedly connected to one end of the fixed rod, a threaded rod 15 is connected to the inner wall of the bottom of the mounting seat through a bearing, a threaded sleeve 14 is connected to the outer wall of the threaded rod 15 in a threaded manner, a second bearing table 8 is fixedly connected to the top end of the threaded sleeve 14, return springs 16 distributed at equal intervals are fixedly connected to the inner wall of the second bearing table 8, a supporting pad is fixedly connected to one end of each return spring 16, a signal receiver 7 is arranged on the outer wall of the opposite side of the supporting pad, fixing frames 24 are arranged on the outer walls of the two sides of, and a grounding connecting wire 21 is arranged on the inner wall of one side of the mounting frame 4, and one end of the grounding connecting wire 21 is fixedly connected to the outer wall of one side of the mounting seat.
According to the invention, the four corners of the outer wall of the top of the mounting rack 4 are fixedly connected with mounting pads 9, the outer walls of the tops of the four mounting pads 9 are fixedly connected with supporting rods 5, and the top ends of the four supporting rods 5 are fixedly connected with a first bearing table 6.
In the invention, the four corners of the outer wall of the bottom of the mounting rack 4 are fixedly connected with the grounding rods 3, and the bottom ends of the four grounding rods 3 are fixedly connected with the limiting pads 2.
In the invention, the outer walls of the bottoms of the four limiting pads 2 are fixedly connected with cones 11, and the outer walls of the circumferences of the cones 11 are provided with mounting grooves.
In the invention, the inner walls of one sides of the four mounting grooves are respectively connected with the dispersing claws 1 through hinges, the outer walls of one sides of the four dispersing claws 1 are respectively connected with the connecting rods 12 through hinges, and one ends of the four connecting rods 12 are respectively connected on the inner walls of the mounting grooves in a sliding manner.
In the invention, the outer walls of two sides of the threaded sleeve 14 are respectively provided with a sliding groove 18, and the inner walls of the two sliding grooves 18 are respectively provided with a sliding block 17.
In the invention, the outer walls of one sides of the two sliding blocks 17 are fixedly connected with the limiting rods 13, and one ends of the two limiting rods 13 are fixedly connected to the outer wall of the mounting seat.
In the invention, the outer wall of one side of the mounting seat is fixedly connected with a mounting tube 22, the inner wall of the mounting tube 22 is connected with a rotating rod 23 through a bearing, one end of the rotating rod 23 is fixedly connected with a first bevel gear 25, and the other end of the rotating rod 23 is fixedly connected with a knob 10.
In the invention, a second bevel gear 26 is fixedly connected to the outer wall of the threaded rod 15 close to the bottom end, and the first bevel gear 25 is meshed with the second bevel gear 26.
When the grounding device is used, the mounting frame 4 is used as a main body of the electric power base device and the communication grounding device, the cone 11 at the four corners of the outer wall at the bottom of the mounting frame 4 is inserted into soil, the limiting pad 2 and the grounding rod 3 are ensured to be just positioned on the ground, then the foundation is compacted, so that when the iron tower receives wind power or vibration and other conditions, the dispersing claws 1 on the outer wall of the cone 11 can tightly grasp the soil, under the cooperation of the hinge and the connecting rod 12, the more the cone 11 shakes, the more obvious the ground grasping effect of the dispersing claws 1 is, the electric power iron tower is fixed on the periphery of the mounting frame 4, the communication grounding device is positioned at the inner side of the mounting frame 4, and the grounding device of the electric power iron tower and the communication base station is connected into a set of common grounding device through the grounding wire by the fixing frame 24, and zero potential between, the problem of between two independent ground system under the power line overvoltage condition, because there is the potential difference and cause the harm to communication equipment is solved, install current limiting device on the ground connection of mount inner wall simultaneously, when ground current exceedes the limit value, fusing subassembly 20 can break ground connection 21, the equipment operation safety of protection communication basic station, can drive first bevel gear 25 through rotating knob 10 and rotate, because first bevel gear 25 and second bevel gear 26 mesh mutually, first bevel gear 25 rotates and drives second bevel gear 26 round and rotate, thereby drive threaded rod 15 and rotate, because the combined action of gag lever post 13 and slider 17 spout 18, rotatory threaded rod 15 can make threaded sleeve 14 upwards move, adjust signal receiver 7 and rise.
Example 2
Referring to fig. 5, in the present embodiment, compared with embodiment 1, the complete set of current-limiting grounding device for an electric power and communication sharing iron tower further includes a rain shielding plate 27 disposed on an outer wall of a top portion of the mounting frame 4, where the rain shielding plate 27 is a hollow circular truncated cone structure.
During the use, the hollow-out construction of round platform form when setting up the weather shield 27 at mounting bracket 4 top, effectual with ground connection line 21, current-limiting component 19 and fusing component 20 protection in the below of weather shield 27, avoid in the rainy process, the rainwater permeates power equipment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The power and communication sharing iron tower complete set current-limiting grounding device comprises a mounting frame (4) and is characterized in that iron tower basic components are fixedly connected to the inner wall of the periphery of the mounting frame (4), a fixed rod is fixedly connected to the inner wall of one side of the mounting frame (4), a mounting seat is fixedly connected to one end of the fixed rod, a threaded rod (15) is connected to the inner wall of the bottom of the mounting seat through a bearing, a threaded sleeve (14) is connected to the outer wall of the threaded rod (15) in a threaded mode, a second bearing table (8) is fixedly connected to the top end of the threaded sleeve (14), reset springs (16) distributed at equal intervals are fixedly connected to the inner wall of the second bearing table (8), supporting pads are fixedly connected to one ends of the reset springs (16), signal receivers (7) are arranged on the outer wall of the opposite side of each supporting pad, and fixing frames (24, two all be equipped with current-limiting component (19) on the inner wall of mount (24), be equipped with fusing subassembly (20) on the top outer wall of current-limiting component (19), be equipped with ground connection line (21) on one side inner wall of mounting bracket (4), the one end fixed connection of ground connection line (21) is on one side outer wall of mount pad.
2. The power and communication sharing iron tower complete set current-limiting grounding device according to claim 1, wherein mounting pads (9) are fixedly connected to four corners of the top outer wall of the mounting frame (4), supporting rods (5) are fixedly connected to the top outer walls of the four mounting pads (9), and a first bearing table (6) is fixedly connected to the top ends of the four supporting rods (5).
3. The power and communication sharing iron tower complete set current-limiting grounding device according to claim 1, wherein the grounding rods (3) are fixedly connected to four corners of the outer wall of the bottom of the mounting frame (4), and the limiting pads (2) are fixedly connected to the bottom ends of the four grounding rods (3).
4. The power and communication sharing iron tower complete set current-limiting grounding device according to claim 3, wherein the outer walls of the bottoms of the four limiting pads (2) are fixedly connected with cones (11), and the outer walls of the circumferences of the cones (11) are provided with mounting grooves.
5. The power and communication sharing iron tower complete set current-limiting grounding device according to claim 4, wherein the inner walls of one side of the four mounting grooves are connected with the dispersing claws (1) through hinges, the outer walls of one side of the four dispersing claws (1) are connected with the connecting rods (12) through hinges, and one ends of the four connecting rods (12) are connected with the inner walls of the mounting grooves in a sliding manner.
6. The power and communication sharing iron tower complete set current-limiting grounding device according to claim 1, wherein sliding grooves (18) are formed in the outer walls of two sides of the threaded sleeve (14), and sliding blocks (17) are arranged on the inner walls of the two sliding grooves (18).
7. The power and communication sharing iron tower complete set current-limiting grounding device according to claim 6, wherein limiting rods (13) are fixedly connected to the outer wall of one side of each of the two sliding blocks (17), and one ends of the two limiting rods (13) are fixedly connected to the outer wall of the mounting seat.
8. The power and communication sharing iron tower complete set current-limiting grounding device according to claim 1, wherein a mounting tube (22) is fixedly connected to an outer wall of one side of the mounting seat, a rotating rod (23) is connected to an inner wall of the mounting tube (22) through a bearing, a first bevel gear (25) is fixedly connected to one end of the rotating rod (23), and a knob (10) is fixedly connected to the other end of the rotating rod (23).
9. A current-limiting grounding device set for power and communication sharing towers according to claim 1, wherein a second bevel gear (26) is fixedly connected to the outer wall of the threaded rod (15) near the bottom end, and the first bevel gear (25) is meshed with the second bevel gear (26).
10. The power and communication sharing iron tower complete set current-limiting grounding device according to claim 1, wherein a rain baffle plate (27) is arranged on the outer wall of the top of the mounting frame (4), and the rain baffle plate (27) is of a hollow circular truncated cone structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577606.3A CN112652896B (en) | 2020-12-28 | 2020-12-28 | Electric power and communication sharing iron tower complete set current-limiting grounding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577606.3A CN112652896B (en) | 2020-12-28 | 2020-12-28 | Electric power and communication sharing iron tower complete set current-limiting grounding device |
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| CN112652896A true CN112652896A (en) | 2021-04-13 |
| CN112652896B CN112652896B (en) | 2022-07-05 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074312A (en) * | 1992-09-08 | 1993-07-14 | 王东生 | A kind of device for eliminating lightning and thunder by limiting current |
| JP2000188138A (en) * | 1998-12-21 | 2000-07-04 | Mitsunori Nakanishi | Top point member of ground rod, and burying method for ground rod |
| CN110943425A (en) * | 2019-12-24 | 2020-03-31 | 国网山东省电力公司临沂供电公司 | Lightning arrester for electric power iron tower and use method thereof |
| CN111064016A (en) * | 2019-11-29 | 2020-04-24 | 邹平市供电公司 | Grounding device of electric power tower |
| CN111244629A (en) * | 2020-01-08 | 2020-06-05 | 北方工业大学 | Lightning protection grounding method of shared iron tower |
| CN211653238U (en) * | 2020-04-02 | 2020-10-09 | 中国电力工程顾问集团华北电力设计院有限公司 | Shared iron tower communication base station optical cable connection and line optical cable connection device co-building structure |
| CN211949862U (en) * | 2020-03-31 | 2020-11-17 | 中国电力工程顾问集团华北电力设计院有限公司 | Composite sharing iron tower |
-
2020
- 2020-12-28 CN CN202011577606.3A patent/CN112652896B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074312A (en) * | 1992-09-08 | 1993-07-14 | 王东生 | A kind of device for eliminating lightning and thunder by limiting current |
| JP2000188138A (en) * | 1998-12-21 | 2000-07-04 | Mitsunori Nakanishi | Top point member of ground rod, and burying method for ground rod |
| CN111064016A (en) * | 2019-11-29 | 2020-04-24 | 邹平市供电公司 | Grounding device of electric power tower |
| CN110943425A (en) * | 2019-12-24 | 2020-03-31 | 国网山东省电力公司临沂供电公司 | Lightning arrester for electric power iron tower and use method thereof |
| CN111244629A (en) * | 2020-01-08 | 2020-06-05 | 北方工业大学 | Lightning protection grounding method of shared iron tower |
| CN211949862U (en) * | 2020-03-31 | 2020-11-17 | 中国电力工程顾问集团华北电力设计院有限公司 | Composite sharing iron tower |
| CN211653238U (en) * | 2020-04-02 | 2020-10-09 | 中国电力工程顾问集团华北电力设计院有限公司 | Shared iron tower communication base station optical cable connection and line optical cable connection device co-building structure |
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| CN112652896B (en) | 2022-07-05 |
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