CN115207856B - Overhead line on-line real-time monitoring, early warning and disconnection protection device - Google Patents
Overhead line on-line real-time monitoring, early warning and disconnection protection device Download PDFInfo
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- CN115207856B CN115207856B CN202210915878.2A CN202210915878A CN115207856B CN 115207856 B CN115207856 B CN 115207856B CN 202210915878 A CN202210915878 A CN 202210915878A CN 115207856 B CN115207856 B CN 115207856B
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- line
- connecting portion
- early warning
- protection device
- time monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers
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Abstract
The invention provides an overhead line on-line real-time monitoring, early warning and disconnection protection device which is connected between an insulator and an electric pole and comprises a first connecting piece connected with the insulator, a second connecting piece connected with the electric pole and a connecting part connected between the first connecting piece and the second connecting piece, wherein the strength of the connecting part is lower than that of a wire.
Description
Technical Field
The invention relates to the technical field of electric pole protection, in particular to an overhead line on-line real-time monitoring, early warning and disconnection protection device.
Background
The pole is, as the name implies, a pole that stands for electrical wiring. The method is applied to rural areas, fields, roads and streets and is one of important infrastructures. The electric pole is used for erecting a wire for supplying power to people in life, and the long-distance wire erection is realized by erecting the electric pole at a certain distance (one electric pole is erected at a position of dozens of meters).
Present pole exposes under open environment such as field road, when meetting extreme weather natural disasters such as ice and snow, typhoon storm or outside artificial reason such as the too high hanging wire of freight train, tree topple over the line ball etc. lead to overhead line to be pressed and fall, because the wire links to each other in a row with the pole, the toppling over of wire or pole can lead to toppling over rather than the pole that links to each other in flakes, disconnected pole, broken string.
Therefore, it is very important to early warn the natural disasters and accidents and protect the broken lines.
Disclosure of Invention
The invention aims to solve the technical problem of how to prevent adjacent electric poles from being continuously and parallelly fallen down when the electric poles encounter natural disasters and accidents, and provides an overhead line on-line real-time monitoring, early warning and wire breakage protection device which can automatically disconnect the electric poles and wires connected to the electric poles when the electric poles fall down so as to protect the wires and other adjacent electric poles.
The technical scheme includes that the online real-time monitoring, early warning and disconnection protection device for the overhead line is connected between an insulator and an electric pole and comprises a first connecting piece connected with the insulator, a second connecting piece connected with the electric pole and a connecting portion connected between the first connecting piece and the second connecting piece, and the strength of the connecting portion is lower than that of a wire.
In one embodiment, the connecting portion is linear.
In one embodiment, the connecting portion has a rod shape.
In one embodiment, the connecting portion is in the shape of a sheet.
In one embodiment, the first connecting member is a U-shaped suspension loop.
As an embodiment, the first connecting member is a ball-end suspension loop.
In one embodiment, the first connecting member is an elongated ring.
In one embodiment, the second connector is a hoop.
In one embodiment, the strength of the connection line is 60% to 95% of the strength of the wire.
As an implementation mode, be equipped with the on-line monitoring sensor on the connecting wire, the on-line monitoring sensor is used for monitoring the atress of connecting wire, still be equipped with the cover on the connecting wire and be in the outer protective housing of connecting wire, be equipped with the connection on the protective housing the signal transmission device of on-line monitoring sensor, signal transmission device be used for with the atress information of on-line monitoring sensor externally transmits.
Compared with the prior art, the structure that the traditional insulator is directly connected with the electric pole is changed into the structure that the insulator is connected with the electric pole through the connecting wire, and the strength of the material of the connecting wire is lower than that of the lead, so that the connecting wire is disconnected in preference to the lead when the lead pulls the electric pole to topple over, the electric pole and the lead connected with the electric pole can be automatically disconnected due to the disconnection of the connecting wire when the electric pole falls down, and the lead and other adjacent electric poles are protected.
Drawings
Fig. 1 is a first perspective view of an overhead line to which an online real-time monitoring, early warning and disconnection protection device according to an embodiment of the present invention is applied;
FIG. 2 is a partial enlarged view of the overhead line on-line real-time monitoring, early warning and disconnection protection device shown in FIG. 1;
fig. 3 is a second perspective view of an overhead line to which an online real-time monitoring, early warning and disconnection protection device according to an embodiment of the present invention is applied;
fig. 4 is a partially enlarged view of the overhead line on-line real-time monitoring, early warning and disconnection protection device led out from fig. 3.
In the figure: 1. an insulator; 2. an electric pole; 3. a first connecting member; 4. a second connecting member; 5. a connecting wire; 6. a wire; 7. monitoring a sensor on line; 8. a protective shell; 9. a signal transmission device; 10. a first circumferential drive element; 11. a rotating drum; 12. a hinged base; 13. a swing rod; 14. a second circumferential drive element; 15. a rocker arm; 16. a cutter bar; 17. a blade; 18. a positioning member; 19. a pressure spring; 20. a pressure sensor; 21. a chute; 22. a slider; 23. inner ring teeth; 24. a gear.
Detailed Description
The foregoing and additional embodiments and advantages of the present invention are described more fully hereinafter with reference to the accompanying drawings. It is to be understood that the described embodiments are merely some, and not all, embodiments of the invention.
In one embodiment, as shown in FIG. 1.
This embodiment provides an overhead line on-line real-time supervision, early warning and broken string protection device, connect between insulator 1 and pole 2, its including the first connecting piece 3 of connecting insulator 1, connect the second connecting piece 4 of pole 2 and connect connecting portion 5 between first connecting piece 3 and second connecting piece 4, the intensity of connecting portion 5 is less than the intensity of wire 6.
In this embodiment, the structure that directly links to each other traditional insulator 1 and pole 2 changes into and links to each other through connecting portion 5, and the intensity of connecting portion 5 material is less than wire 6 intensity, therefore connecting portion 5 breaks in preference to wire 6 when wire 6 pulling pole 2 topples over, can make pole 2 and the wire 6 that links to it break automatically because of the disconnection of connecting portion 5 when pole 2 falls to protect wire 6 and adjacent other poles 2.
Traditional 2 structures on pole, insulator 1 and the staple bolt on it pass through link fittings lug connection such as bulb link, U type link, and wire 6 links to each other through fastener and the wire 6 of opposite side. Because insulator 1 and staple bolt are connected very firmly, empty the line ball etc. when too high hanging wire of freight train, tree, lead to overhead line to be pressed and fall, because wire 6 links to each other the in bank with pole 2, empting of wire 6 or pole 2 can lead to toppling over rather than 2 poles that link to each other in pieces, disconnected pole, broken string. In the present embodiment, the strength of the connection portion 5 is preferably 60% to 95% of the strength of the lead wire 6. In order to cooperate with the first connecting member 3 and the second connecting member 4 for connecting the insulator 1 and the electric pole 2, the first connecting member 3 is preferably a U-shaped suspension loop. The second connector 4 is preferably a hoop. Therefore, the disconnection protection of natural disasters and accidents is realized.
In the present embodiment, the connecting portion 5 may be linear, rod-shaped, or sheet-shaped. The connection portion 5 is not limited to a linear, rod-like, or sheet-like shape, and may have other suitable connection patterns. The first connecting member 3 may be a U-shaped link, a ball-end link, or an extension link or other connecting hardware. The second connecting piece (4) can be a hoop or other connecting fittings.
In one embodiment, as shown in FIG. 2.
According to the overhead line online real-time monitoring, early warning and disconnection protection device provided by the embodiment, the connecting part 5 is provided with the online monitoring sensor 7, the online monitoring sensor 7 is used for monitoring the stress of the connecting part 5, the connecting part 5 is further provided with the protective shell 8 covering the connecting part 5, the protective shell 8 is provided with the signal transmission device 9 connected with the online monitoring sensor 7, and the signal transmission device 9 is used for transmitting the stress information of the online monitoring sensor 7 to the outside.
In this embodiment, online monitor sensor 7 has been set up in protective housing 8 (can set up on connecting portion 5 or other suitable positions), online monitor sensor 7 monitors the value that the pulling force scope is greater than the required power of connecting portion 5 disconnection, protective housing 8 is inside or outside sets up signal transmission device, it can receive online monitor sensor output signal, supply the operation and maintenance personnel to know the pulling force of every pole and insulator junction, thereby obtain real-time data, judge whether some is different from other some by the pulling force, the operation and maintenance personnel can be based on real-time data priority maintenance pulling force abnormal place, avoid because of the economic loss that the pulling force abnormal place takes place. Preferably, the signal transmission device 9 has a positioning function, and is capable of performing standard wiring foundation work of the overhead line. In order to solve the background technical problem, a wire breaking device with the line design strength of only 90% can be additionally arranged at a strain joint, the phenomenon that a vertical rod topples and breaks a rod is avoided when the strain accident happens and the line breaking point is broken, meanwhile, a cable online monitoring sensor 7 is additionally arranged, online monitoring and data transmission are carried out on the stress state of the line in real time, early warning is automatically sent to operation and maintenance personnel to carry out routing inspection and troubleshooting when a set value is reached, early warning monitoring of the line is achieved, and even if the strain accident or artificial damage happens, the loss control can be controlled within a minimum range.
In one embodiment, as shown in fig. 3-4.
The online real-time monitoring, early warning and disconnection protection device for the overhead line, provided by the embodiment, a connecting portion 5 is provided with an online monitoring sensor 7, the online monitoring sensor 7 is used for monitoring stress of the connecting portion 5, the connecting portion 5 is further provided with a cylindrical protective housing 8 covering the connecting portion 5, a rotary drum 11 driven by a first circumferential driving element 10 installed in the protective housing 8 is coaxially arranged in the protective housing 8, the connecting portion 5 penetrates through the rotary drum 11 along an axis of the rotary drum 11, a hinged base 12 located on one side of the connecting portion 5 is arranged in the rotary drum 11, a perforated swing rod 13 extending along an axial direction of the rotary drum 11 is connected in the hinged base 12, a second circumferential driving element 14 is further arranged in the rotary drum 11, a rotating shaft of the second circumferential driving element 14 is connected with a rocker arm 15 inserted into a hole of the swing rod 13, the swing rod 13 is connected with a cutter rod 16 extending to the other side of the connecting portion 5, one side of the cutter rod 16 facing the connecting portion 5 is provided with a blade 17, one side of the cutter rod 16 opposite to the connecting portion 5 is slidably connected with a positioning element 18, the positioning element 18 is fixed through a pressure spring 19 fixed on the rotary drum 11 along a direction perpendicular to the connecting portion 5, and a pressure sensor 20 for detecting pressure of the pressure 19 is arranged on the positioning element 18; when the online monitoring sensor 7 monitors that the stress of the connecting part 5 is greater than a first set value, the second circumferential driving element 14 rotates to sequentially drive the blade 17 to cut the connecting part 5 through the rocker arm 15 and the cutter bar 16, and when the pressure sensor 20 detects that the pressure of the pressure spring 19 is less than a second set value, the first circumferential driving element 10 drives the rotary drum 11 to rotate so that the blade 17 is displaced relative to a notch formed on the connecting part 5.
In the present embodiment, the components are combined as follows. A second circumferential driving element 14 fixed inside the drum 11 is connected to a rocker arm 15, the rocker arm 15 being substantially Z-shaped and inserted into a kidney-shaped hole of the oscillating bar 13 to cooperate with the oscillating bar 13. Since one end of the swing link 13 is hinged to the hinge base 12 fixed in the drum 11, the second circumferential driving element 14 drives the swing link 13 to swing up and down (up, down, left, and right directions are determined in the position state shown in fig. 4) periodically centering on the hinge base 12. The knife bar 16 moves up and down with the pivoting of the pivot lever 13, since the path of movement of the knife bar 16 is also limited by the positioning element 18, which is fixed in the drum 11 by means of the compression spring 19, and the pivot lever 13 can only move up and down in the direction of its sliding connection with the positioning element 18. And the blade 17 has a cutting effect on the connecting portion 5 by applying pressure from the compression spring 19 during the up and down movement. The blade 17 may be serrated to enhance the cutting effect. After the cut has been made in the joint 5, the first circumferential driving element 10 drives the drum 11 in rotation and the position of all the components in the drum 11 changes somewhat with respect to the joint 5, which contributes to the cutting of the joint 5. In this embodiment, the circumferential drive element may be an electric element, a pneumatic element, or a hydraulic element.
In the present embodiment, the stress of the connection portion 5 is monitored by the on-line monitoring sensor 7, when the tension value reaches the first set value, that is, 90% of the tension that the wire 6 can bear, the second circumferential driving element 14 rotates to sequentially drive the blade 17 to cut the connection portion 5 through the rocker arm 15 and the cutter bar 16, the blade 17 cuts the connection portion 5 along the direction perpendicular to the connection portion 5 to form a notch on the connection portion 5, and the stress of the pressure sensor 20 is reduced as the compressed spring 19 relatively extends along the notch. When the second set value is less than, the first circumferential driving element 10 drives the drum 11 to rotate, so that the blade 17 is displaced relative to the notch formed on the connecting portion 5, and the blade 17 cuts the connecting portion 5 at the position adjacent to the notch after the displacement until the connecting portion 5 is cut off.
In the present embodiment, the technical problem to be solved by the above technical solutions is how to automatically break the wire when the connecting portion 5 is stressed to 90% of the tensile force that the wire 6 can bear without breaking. Thereby guarantee that pole 2 that single department wire 6 arouses emptys not to take adjacent pole 2 to fall down, avoid the in bank to topple over and cause the improvement of fortune dimension cost. In particular, the effect of the first circumferential drive element 10 in driving the drum 11 in rotation when the cut is made in the connection 5 is in the technical solution of severing the connection 5, rather than the effect inherent in the features of the first circumferential drive element 10 in cooperation with the drum 11 itself.
In one embodiment, as shown in FIG. 4.
In the online real-time monitoring, early warning and disconnection protection device for the overhead line provided by the embodiment, an inverted T-shaped sliding groove 21 is arranged on one side of the cutter bar 16, which is back to the connecting part 5, and a sliding block 22 which is slidably connected with the sliding groove 21 is arranged on the positioning part 18. In the present embodiment, the positioning member 18 is slidably connected to the knife bar 16 by providing the slide groove 21 and the slider 22.
In one embodiment, as shown in FIG. 4.
In the online real-time monitoring, early warning and wire breakage protection device for the overhead line, the end part of the rotary drum 11 is provided with inner ring teeth 23, and the rotating shaft of the first circumferential driving element 10 is connected with a gear 24 meshed with the inner ring teeth 23. In the present embodiment, the rotation of the first circumferential driving element 10 drives the drum 11 to rotate by means of the gear 24 and the inner ring teeth 23.
The above-described embodiments further explain the objects, technical solutions, and advantageous effects of the present invention in detail. It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.
Claims (10)
1. The on-line real-time monitoring, early warning and disconnection protection device for the overhead line is connected between an insulator (1) and an electric pole (2), and is characterized by comprising a first connecting piece (3) connected with the insulator (1), a second connecting piece (4) connected with the electric pole (2) and a connecting part (5) connected between the first connecting piece (3) and the second connecting piece (4), wherein the strength of the connecting part (5) is lower than that of a lead (6) of the overhead line;
the device is characterized in that an online monitoring sensor (7) is arranged on the connecting portion (5), the online monitoring sensor (7) is used for monitoring the stress of the connecting portion (5), a protective shell (8) covering the connecting portion (5) is further arranged on the connecting portion (5), a rotary drum (11) driven by a first circumference driving element (10) installed in the protective shell (8) is coaxially arranged in the protective shell (8), the connecting portion (5) penetrates through the rotary drum (11) along the axis of the rotary drum (11), a hinged base (12) located on one side of the connecting portion (5) is arranged in the rotary drum (11), a perforated swing rod (13) extending along the axial direction of the rotary drum (11) is connected in the hinged base (12), a second circumference driving element (14) is further arranged in the rotary drum (11), a rotary shaft of the second circumference driving element (14) is connected with a rocker arm (15) inserted into a hole of the swing rod (13), a cutter bar (16) extending to the other side of the connecting portion (5) is connected on the swing rod (13), one side of the cutter bar (16) facing the connecting portion (5) provided with a blade (17), and a back of the connecting portion (18) is connected with a positioning piece (18), the positioning piece (18) is fixed through a pressure spring (19) fixed on the rotary drum (11) along a direction vertical to the connecting part (5), and a pressure sensor (20) for detecting the pressure of the pressure spring (19) is arranged on the positioning piece (18);
when the online monitoring sensor (7) monitors that the stress of the connecting part (5) is larger than a first set value, the second circumferential driving element (14) rotates to drive the blade (17) to cut the connecting part (5) through the rocker arm (15) and the cutter bar (16) in sequence, and when the pressure sensor (20) detects that the pressure of the pressure spring (19) is smaller than a second set value, the first circumferential driving element (10) drives the rotary drum (11) to rotate so that the blade (17) is displaced relative to a cut formed on the connecting part (5).
2. The overhead line on-line real-time monitoring, early warning and disconnection protection device according to claim 1, wherein the connecting portion (5) is linear.
3. The overhead line on-line real-time monitoring, early warning and disconnection protection device according to claim 1, wherein the connecting part (5) is rod-shaped.
4. The overhead line on-line real-time monitoring, early warning and disconnection protection device according to claim 1, wherein the connecting portion (5) is in a sheet shape.
5. The overhead line on-line real-time monitoring, early warning and disconnection protection device of claim 1, wherein the first connecting member (3) is a U-shaped suspension loop.
6. The overhead line on-line real-time monitoring, early warning and disconnection protection device according to claim 1, wherein the first connecting piece (3) is a ball head suspension loop.
7. Overhead line on-line real-time monitoring, early warning and disconnection protection device according to claim 1, characterized in that the first connection member (3) is an extension ring.
8. The overhead line on-line real-time monitoring, early warning and disconnection protection device according to claim 1, wherein the second connecting piece (4) is a hoop.
9. The overhead line on-line real-time monitoring, early warning and disconnection protection device according to claim 1, wherein the strength of the connecting portion (5) is 60-95% of the strength of the lead (6).
10. The overhead line on-line real-time monitoring, early warning and disconnection protection device according to claim 1, wherein a signal transmission device (9) connected with the on-line monitoring sensor (7) is arranged on the protective shell (8), and the signal transmission device (9) is used for transmitting the stress information of the on-line monitoring sensor (7) to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210915878.2A CN115207856B (en) | 2022-08-01 | 2022-08-01 | Overhead line on-line real-time monitoring, early warning and disconnection protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210915878.2A CN115207856B (en) | 2022-08-01 | 2022-08-01 | Overhead line on-line real-time monitoring, early warning and disconnection protection device |
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| Publication Number | Publication Date |
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| CN115207856A CN115207856A (en) | 2022-10-18 |
| CN115207856B true CN115207856B (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210915878.2A Active CN115207856B (en) | 2022-08-01 | 2022-08-01 | Overhead line on-line real-time monitoring, early warning and disconnection protection device |
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| CN113241702A (en) * | 2021-03-18 | 2021-08-10 | 广西电网有限责任公司电力科学研究院 | Bolt type wire backup wire clamp and monitoring system thereof |
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| CN102564322A (en) * | 2012-01-18 | 2012-07-11 | 上海波汇通信科技有限公司 | System for monitoring sag of overhead wire in real time |
| CN104407424A (en) * | 2014-12-12 | 2015-03-11 | 四川欣和嘉盛信息技术有限公司 | Transmission line protective device |
| CN106803657A (en) * | 2015-11-26 | 2017-06-06 | 江苏天南电力器材有限公司 | One kind has monitoring function strain clamp |
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