Monitoring alarm device and method based on power line

Abstract

The invention discloses a monitoring alarm device and method based on a power line, and the device comprises a fixed frame which is fixedly disposed at the top end of an overhead line tower, one side of the fixed frame is connected with a rectangular housing, and the rectangular housing is provided with a first joint, a second joint, and a third joint. The first connector and the second connector are connected with an electromagnetic coil used for monitoring a power transmission line, the third connector is connected with a conducting rod capable of being powered on or powered off, and the alarm mechanism is triggered through magnetic force changes of the electromagnetic coil and can remotely inform operation and maintenance personnel and give out sound-light alarms; in addition, the device is further provided with a clamping mechanism, a power transmission line can be tightened when a fault occurs, the stability of the line is enhanced, the power line is monitored in real time through an electromagnetic coil, an alarm can be quickly given and the power supply can be cut off when the fault occurs, accident expansion is effectively avoided, and the device is safe and reliable. And safe operation of a power line is ensured.

Description

Technical Field

[0001] This invention relates to the field of power line monitoring and alarm technology, specifically to a power line monitoring and alarm device and method. Background Technology

[0002] With the continuous development of the power system and the increasing demand for electricity, overhead lines dominate the application of power transmission lines in actual use, and their distribution is the most extensive. However, power lines face many potential risks during operation, such as natural factors (wind, ice, etc.), external damage (vehicle collisions, human-caused damage, etc.), equipment aging, and abnormal electrical parameters. These factors may lead to power line faults, which in turn cause power outages and result in huge losses to society and the economy. Although existing power line monitoring technologies can monitor power lines to a certain extent, they still have some shortcomings. For example, traditional monitoring methods mainly rely on manual inspections, which are inefficient, costly, and risky, and make it difficult to detect potential problems in the lines in a timely manner.

[0003] A Chinese patent with publication number CN119516727A includes an alarm body. A fixing rod is fixedly connected to the rear sides of both the upper and lower ends of the alarm body. A guide block is fixedly connected to the rear end of each fixing rod on both the upper and lower sides. A guide rail is provided on the outer side of each guide block on both the upper and lower sides. A maintenance unit is provided on the rear side of the alarm body. An alarm light is fixedly connected to the upper side of the alarm body. An indicator light strip is fixedly connected to the front side of the alarm body. A mounting bracket is fixedly connected to the outer side of each guide block.

[0004] When in use, the aforementioned device is equipped with an inspection cover, guide rails, and conveyor wheels to facilitate alarming in the event of a local fire on the line, and to move to the fire location for sealing. It also blocks outside air through a sealing plate. However, in actual use, when a short circuit, overload, or grounding fault occurs in the power line, it can often only alert maintenance personnel through audible and visual alarms or remote notifications, making it difficult to disconnect the power to the faulty line. This leads to the fault rapidly expanding, causing cable burnout, equipment damage, and even serious accidents such as fires.

[0005] Therefore, we propose a monitoring and alarm device and method for power lines. Summary of the Invention

[0006] The purpose of this invention is to provide a monitoring and alarm device and method for power lines, which has the advantage of being able to cut off power to the faulty line when a fault occurs, thus solving the problems in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a monitoring and alarm device for power lines, comprising a fixed frame fixedly installed at the top of an overhead line tower, a rectangular shell fixedly connected to one side of the fixed frame, a first connector fixedly connected to one end of a transmission line on one side of the bottom of the rectangular shell, and a third connector fixedly connected to the other end of the transmission line on the top side of the rectangular shell away from the first connector, and a second connector fixedly connected to the end of the rectangular shell near the third connector, an electromagnetic coil for monitoring the transmission line fixedly connected to the first and second connectors, a conductive rod for energizing or de-energizing rotatably connected to the third connector, and a connecting groove for energizing the conductive rod on the second connector, the fixed frame being provided with an alarm mechanism for alarming transmission line faults and a power-off mechanism for de-energizing the transmission line.

[0008] Preferably, the alarm mechanism includes two horizontally movable blocks symmetrically connected at both ends of the inner wall of the fixed frame, and metal blocks fixedly connected at opposite ends of the two movable blocks for attracting the movable blocks to move towards each other. A lifting rod is movably connected to the inner wall of the rectangular shell. An adjusting rod for pushing the lifting rod to move up and down is rotatably connected to the side of the two movable blocks near the rectangular shell. The ends of the two adjusting rods away from the movable blocks are rotatably connected to the bottom end of the lifting rod on the same axis.

[0009] Preferably, an audible and visual alarm is fixedly connected to the end of the rectangular housing and electrically connected to the remote controller, and a pressure sensor is fixedly connected to the inner wall of the rectangular housing and signal connected to the remote controller. An inclined rod is rotatably connected to the inner wall of the rectangular housing, and an inclined block is fixedly connected to the bottom end of the lifting rod near the inclined rod to push the inclined rod to rotate and apply pressure to the pressure sensor.

[0010] Preferably, the power-off mechanism includes a lifting rod with a movable groove, and a lifting rod that pushes the conductive rod to disconnect the power to the second connector is movably connected to the inner wall of the movable groove. A support block is fixedly connected to the end of the lifting rod. A rectangular frame is fixedly connected to the end of the conductive rod near the lifting rod, which allows the support block to push the conductive rod to flip and disconnect the power. The end of the support block away from the lifting rod extends through to the inner wall of the rectangular frame and is movably connected.

[0011] Preferably, a second spring is fixedly connected to the bottom end of the lifting rod and the opposite surface of the moving groove to guide the lifting rod to reset and move. A second locking block for locking the position of the lifting rod is fixedly connected to the bottom end of the inclined rod near the lifting rod, and a first locking block that abuts against the second locking block is fixedly connected to the bottom end of the lifting rod near the inclined rod.

[0012] Preferably, each of the movable blocks is fixedly connected to a circular perforated plate at symmetrical positions at both ends to support the transmission line, and a fixing block is fixedly connected to symmetrical positions on both sides of two adjacent circular perforated plates at each end. The fixing block is provided with a clamping mechanism for the movable block to pull the transmission line.

[0013] Preferably, the clamping mechanism includes a moving rod that is horizontally movably connected through each of the fixed blocks, and a clamping block for clamping the cable is fixedly connected to the opposite ends of the two moving rods at each end.

[0014] Preferably, a U-shaped frame is fixedly connected at symmetrical positions at both ends of the fixing frame to push the clamping blocks to move towards each other and clamp the power transmission line. A first spring is fixedly connected to the opposite surface of each clamping block and the adjacent circular perforated plate to guide the clamping block to reset and move in opposite directions.

[0015] A monitoring and alarm method based on power lines includes the following steps: S1. Monitoring circuit: When current passes through the electromagnetic coil, a small magnetic force is generated around the electromagnetic coil under normal operating conditions. When a power line fault occurs, the current will surge instantly, and the magnetic force around the electromagnetic coil will increase accordingly. S2. Tightening the transmission line: As the magnetic force on the electromagnetic coil gradually increases, the metal block can drive the moving blocks at both ends to move towards each other under the magnetic force of the electromagnetic coil. Thus, the moving rod can push the moving rods on both sides to move towards each other, and the clamping blocks move towards each other under the action of the moving rods to clamp the transmission line on both sides. As the moving blocks move towards each other, the clamping blocks can pull the transmission lines on both sides to tighten. S3. Alarm Operation: When the moving blocks move to their extreme positions, if the current value of the power line exceeds the set threshold, the lifting rod will drive the inclined block to move to the contact point with the inclined surface at the bottom of the inclined rod. At the same time, the bottom of the inclined rod will rotate away from the lifting rod under the action of the inclined block and come into contact with the pressure sensor to apply pressure. The pressure sensor will then convert the pressure value into an electrical signal and transmit it to the remote controller to issue an alarm to the power maintenance personnel. At the same time, the remote controller will activate the audible and visual alarm to warn the surrounding area and remind people to pay attention. S4. Power-off operation: As the inclined rod rotates away from the lifting rod, the inclined rod drives the second locking block to move and disengage from the first locking block. Then, under its own elastic force, the second spring can push the lifting rod to move vertically upward. Under the action of the lifting rod, the support block can push the conductive rod upward through the rectangular frame to flip up, and the conductive rod disengages from the inner wall of the connecting groove, thus realizing the power-off operation of the power line.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the current induced by the electromagnetic coil exceeds the set threshold, the metal block, under the magnetic force of the electromagnetic coil, drives the moving blocks at both ends to move towards each other. The inclined rod rotates and comes into contact with the pressure sensor, applying pressure. The pressure sensor converts the sensed pressure signal into an electrical signal and transmits it to the remote controller, allowing power maintenance personnel to obtain fault information immediately, respond quickly, and take measures. At the same time, the audible and visual alarm is activated to warn surrounding personnel and avoid accidental injuries caused by the fault. This improves the safety and maintenance efficiency of power lines and reduces power outage time and economic losses caused by faults.

[0017] Second, when the current exceeds the set threshold, the lifting rod and support block will push the conductive rod to flip, causing it to disengage from the connecting groove, thus achieving rapid power cut-off. This can cut off the power supply in a very short time, effectively preventing the fault from escalating, reducing the risk of cable burnout and equipment damage, and even preventing serious accidents such as fires. This improves the safety of power lines and protects the safety of power equipment and personnel.

[0018] Third, the magnetic force of the electromagnetic coil drives the metal block and the moving block to move towards each other, thereby tightening the transmission line through the clamping block. This prevents the transmission line from swaying in natural environments such as strong winds, which could lead to unstable current and ensure the stable operation of the power line. At the same time, tightening the transmission line can also reduce the looseness and wear of the line, extend the service life of the transmission line, reduce the maintenance cost of the power line, improve the wind resistance and operational stability of the power line, and enhance the overall reliability of the power system.

[0019] The combined use of the above structures solves the problem that in actual use, when a short circuit, overload, or grounding fault occurs in a power line, existing devices can only alert maintenance personnel through audible and visual alarms or remote notifications, making it difficult to disconnect the power to the faulty line. This leads to the fault rapidly expanding, causing cable burnout, equipment damage, or even serious accidents such as fires. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the structure at point A in the middle; Figure 3 This is a three-dimensional cross-sectional view of the present invention; Figure 4 This is a three-dimensional structural diagram of the part where the lifting rod of the present invention is located; Figure 5 This is a three-dimensional cross-sectional view of the portion of the rectangular shell of the present invention; Figure 6 For the present invention Figure 5Schematic diagram of the structure at point B; Figure 7 For the present invention Figure 5 Schematic diagram of the structure at point C; Figure 8 This is a three-dimensional structural diagram of the part where the clamping block of the present invention is located; Figure 9 This is a flowchart illustrating a monitoring and alarm method for power lines according to the present invention.

[0021] In the diagram: 1. Fixing frame; 2. Rectangular housing; 3. First connector; 4. Second connector; 401. Connecting groove; 5. Third connector; 6. Conductive rod; 7. Electromagnetic coil; 8. Moving block; 9. Metal block; 10. Lifting rod; 101. Moving groove; 11. Adjusting rod; 12. Pressure sensor; 13. Inclined rod; 14. Inclined block; 15. Circular perforated plate; 16. Fixing block; 17. Moving rod; 18. Clamping block; 19. First spring; 20. U-shaped frame; 21. Lifting rod; 22. Second spring; 23. Rectangular frame; 24. Support block; 25. First locking block; 26. Second locking block; 27. Audible and visual alarm. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1:

[0024] Please see Figures 1 to 9 This invention provides a technical solution: a monitoring and alarm device and method for power lines, comprising a fixed frame 1 fixedly installed at the top of an overhead line tower, a rectangular shell 2 fixedly connected to one side of the fixed frame 1, a first connector 3 fixedly connected to one end of a transmission line on one side of the bottom of the rectangular shell 2, and a third connector 5 fixedly connected to the other end of the transmission line on the top side of the rectangular shell 2 away from the first connector 3, and a second connector 4 fixedly connected to the end of the rectangular shell 2 near the third connector 5. Electromagnetic coils 7 for monitoring the transmission line are fixedly connected to the first connector 3 and the second connector 4. A conductive rod 6 for energizing or de-energizing is rotatably connected to the third connector 5, and a connecting groove 401 for energizing the conductive rod 6 is provided on the second connector 4. The fixed frame 1 is provided with an alarm mechanism for alarming transmission line faults and a power-off mechanism for de-energizing the transmission line.

[0025] In use, by setting up a fixing frame 1, the fixing frame 1 is first fixedly supported on the top of the overhead line tower. The rectangular shell 2 is fixedly supported on the fixing frame 1, ensuring the stability of the rectangular shell 2. The first connector 3 and the second connector 4 are fixedly supported on the rectangular shell 2. Electromagnetic coils 7 are installed on the first connectors 3 and 4, allowing their two ends to be fixedly connected to the first connectors 3 and 4 respectively. A third connector 5 is installed on the rectangular shell 2 and fixedly connected to one end of the transmission line, while the first connector 3 is fixedly connected to the other end of the transmission line. A conductive rod 6 is installed on the third connector 5, allowing the conductive rod to... The third connector 5 is rotatably connected to a fixed axis, and the second connector 4 has a connecting groove 401. In the initial state, the end of the conductive rod 6 away from the third connector 5 is located on the inner wall of the connecting groove 401, which is in the energized state. When the current passes through the electromagnetic coil 7, a small magnetic force is generated around the electromagnetic coil 7 under normal working conditions. When a fault occurs in the power line, the current will surge instantly, and the magnetic force around the electromagnetic coil 7 will increase accordingly. Through the alarm mechanism and power-off mechanism set on the fixed frame 1, when the current in the circuit exceeds the set threshold, the alarm mechanism can remotely issue an alarm to the power maintenance personnel under the strong magnetic force of the electromagnetic coil 7, and at the same time issue a warning to the surrounding area to remind nearby personnel to pay attention. Then, the power-off mechanism can cut off the power to the power line through the mechanical mechanism of the alarm mechanism.

[0026] Example 2:

[0027] Building upon Example 1, the following is a further step: The alarm mechanism includes two horizontally movable blocks 8 at symmetrical positions on the inner wall of the fixed frame 1. Metal blocks 9 are fixedly connected to the opposite ends of the two movable blocks 8, allowing the electromagnetic coil 7 to attract the movable blocks 8 and move them towards each other. A lifting rod 10 is movable and liftable to the inner wall of the rectangular shell 2. Adjusting rods 11 that push the lifting rod 10 to move up and down are rotatably connected to the side of the two movable blocks 8 near the rectangular shell 2. The ends of the two adjusting rods 11 away from the movable blocks 8 are rotatably connected to the bottom end of the lifting rod 10 on the same axis.

[0028] The rectangular housing 2 is fixedly connected to an audible and visual alarm 27 that is electrically connected to a remote controller at one end, and a pressure sensor 12 that is signal-connected to a remote controller is fixedly connected to the inner wall of the rectangular housing 2. An inclined rod 13 is rotatably connected to the inner wall of the rectangular housing 2. An inclined block 14 that pushes the inclined rod 13 to rotate and applies pressure to the pressure sensor 12 is fixedly connected to the bottom end of the lifting rod 10 near the inclined rod 13.

[0029] In use, the movable block 8 is provided on the fixed frame 1 and the fixed frame 1 supports the movable block 8, so that the movable block 8 can move horizontally on the inner wall of the fixed frame 1. The metal block 9 is provided on the movable block 8 and is fixedly supported on the movable block 8. As the magnetic force on the electromagnetic coil 7 gradually increases, the metal block 9 can drive the movable blocks 8 at both ends to move towards each other under the magnetic force of the electromagnetic coil 7.

[0030] The lifting rod 10, mounted on the rectangular housing 2, allows for vertical movement within the housing 2. An adjusting rod 11, mounted on the moving block 8, moves in opposite directions alongside the moving block 8, pushing the lifting rod 10 vertically upwards. An inclined rod 13, mounted on the rectangular housing 2, provides fixed-axis rotational support. When the moving block 8 reaches its extreme position, and the current in the power line exceeds a set threshold, the lifting rod 10 causes the inclined block 14 to contact the bottom of the inclined rod 13. Simultaneously, the bottom of the inclined rod 13... The end rotates away from the lifting rod 10 under the action of the inclined block 14. The pressure sensor 12 installed on the rectangular housing 2 allows the inclined rod 13 to rotate and come into contact with the pressure sensor 12 to apply pressure. The pressure sensor 12 is connected to the remote controller via a signal, so the pressure sensor 12 can convert the pressure value into an electrical signal and transmit it to the remote controller to issue an alarm to the power operation and maintenance personnel. The audible and visual alarm 27 installed on the rectangular housing 2 is connected to the remote controller via an electrical connection. The remote controller can then activate the audible and visual alarm 27 according to the pressure value of the pressure sensor 12 to warn the surrounding area and remind people to pay attention to avoid accidental injury caused by malfunction.

[0031] The pressure sensor 12 described above can convert pressure values ​​into electrical signals and transmit them to a remote controller to issue alarms to power operation and maintenance personnel. This is existing technology well known to those skilled in the art, and therefore will not be described in detail here.

[0032] Example 3:

[0033] Building upon Example 2, the following is a further step: The power-off mechanism includes a lifting rod 10 with a movable groove 101. The inner wall of the movable groove 101 is connected to a lifting rod 21 that pushes the conductive rod 6 to disconnect the power to the second connector 4. A support block 24 is fixedly connected to the end of the lifting rod 21. A rectangular frame 23 is fixedly connected to the end of the conductive rod 6 near the lifting rod 21, which allows the support block 24 to push the conductive rod 6 to flip and disconnect the power. The end of the support block 24 away from the lifting rod 21 extends through to the inner wall of the rectangular frame 23 and is movably connected.

[0034] A second spring 22 is fixedly connected to the bottom end of the lifting rod 21 on the opposite surface of the moving groove 101 to guide the lifting rod 21 to reset and move. A second locking block 26 is fixedly connected to the bottom end of the inclined rod 13 near the lifting rod 10 to lock the position of the lifting rod 21. A first locking block 25 that abuts against the second locking block 26 is fixedly connected to the bottom end of the lifting rod 21 near the inclined rod 13.

[0035] In use, the lifting rod 21, which is mounted on the moving groove 101 of the lifting rod 10, can move up and down along the inner wall of the moving groove 101. The supporting block 24 on the lifting rod 21 provides fixed support. The rectangular frame 23 on the conductive rod 6, with the supporting block 24 movably supported on the inner wall of the rectangular frame 23, provides support for the position of the conductive rod 6. With the second spring 22 installed on the lifting rod 21, the lifting rod 10 is initially located at the extreme position at the bottom end of the rectangular housing 2. Under the action of the second spring 22, the lifting rod 21 can pull the conductive rod 6 through the support block 24 to engage with the inner wall of the connecting groove 401 and be in an energized state. With the first locking block 25 installed on the lifting rod 21 and the second locking block 26 installed on the inclined rod 13, the first locking block 25 and the second locking block 26 are in an engaged state. When the lifting rod 10 moves in the upward vertical direction... When the lifting rod 21 remains stationary under the action of the first locking block 25 and the second locking block 26, the second spring 22 is compressed and contracted under the action of the lifting rod 10. At this time, the current value of the power line is within a reasonable range. When the lifting rod 10 moves to the limit position in the upward vertical direction and pushes the inclined rod 13 to rotate away from the lifting rod 10, the inclined rod 13 drives the second locking block 26 to move and disengage from the first locking block 25. Then, under its own elastic force, the second spring 22 can push the lifting rod 21 to move in the upward vertical direction. At this time, the current value of the power line exceeds the set threshold. Then, under the action of the lifting rod 21, the support block 24 can push the conductive rod 6 upward through the rectangular frame 23 to flip it. The conductive rod 6 disengages from the inner wall of the connecting groove 401, realizing the power line is cut off. This effectively prevents the fault from expanding, reduces the risk of cable burning and equipment damage, and even prevents serious accidents such as fires. This improves the safety of the power line and protects the safety of power equipment and personnel.

[0036] Example 4:

[0037] Building upon Example 3, the following is a further step: Each of the movable blocks 8 has a circular perforated plate 15 fixedly connected at both ends symmetrically to support the transmission line. Each of the two adjacent circular perforated plates 15 at each end has a fixed block 16 fixedly connected at both ends symmetrically. The fixed block 16 is provided with a clamping mechanism for the movable block 8 to pull the transmission line.

[0038] In use, the two transmission lines are first passed through the holes in the circular perforated plate 15 on the movable block 8, so that the circular perforated plate 15 can support the two transmission lines. The fixing block 16 on the circular perforated plate 15 can fix and support the transmission lines. The clamping mechanism on the fixing block 16 moves towards each other with the two movable blocks 8, so that the clamping mechanism can clamp and fix the transmission lines and tighten them, thus avoiding the problem of unstable power line current caused by the swaying of the transmission lines in windy weather.

[0039] The clamping mechanism includes a moving rod 17 that is horizontally movably connected to each of the fixed blocks 16, and a clamping block 18 for clamping the cable is fixedly connected to the opposite ends of the two moving rods 17 at each end.

[0040] At symmetrical positions at both ends of the fixed frame 1, a U-shaped frame 20 is fixedly connected to push the clamping blocks 18 to move towards each other and clamp the transmission line. Each clamping block 18 is fixedly connected to a first spring 19 on the opposite surface of the circular perforated plate 15 on the adjacent side to guide the clamping block 18 to reset and move in opposite directions.

[0041] In use, the movable rod 17 is mounted on the fixed block 16, and the fixed block 16 supports the movable rod 17, allowing the movable rod 17 to move horizontally on the fixed block 16. The clamping block 18 mounted on the movable rod 17 is fixedly supported on the movable rod 17. A first spring 19 is mounted on the clamping block 18. Initially, the movable block 8 is located at the extreme positions at both ends of the fixed frame 1. Then, under the action of the first spring 19, the clamping block 18 is located on both sides of the power transmission line and is in a released state. Through the U-shaped frame 20 mounted on the fixed frame 1, the movable block 8 moves towards each other along with the electromagnetic coil 7, thus the movable rod 17 moves along the inclined U-shaped frame 20. Under the action of the surface, the movable rods 17 on both sides can be pushed to move towards each other, and the clamping blocks 18 move towards each other under the action of the movable rods 17 to clamp the two sides of the transmission line. As the movable blocks 8 move towards each other, the clamping blocks 18 can pull the two sides of the transmission line to tighten under the action of the movable blocks 8. This prevents the transmission line from being too loose, which would cause the transmission line to sway in the natural environment of strong winds and cause the current to be unstable. This ensures the stable operation of the power line. At the same time, tightening the transmission line can also reduce the looseness and wear of the line, extend the service life of the transmission line, reduce the maintenance cost of the power line, improve the wind resistance and operational stability of the power line, and enhance the overall reliability of the power system.

[0042] Example 5:

[0043] Building upon Example 4, the following is a further step: A monitoring and alarm method based on power lines includes the following steps: S1. Monitoring circuit: When current passes through electromagnetic coil 7, under normal operating conditions, a small magnetic force is generated around electromagnetic coil 7. When a power line fault occurs, the current will surge instantly, and at the same time, the magnetic force around electromagnetic coil 7 will increase accordingly. S2. Tightening the transmission line: As the magnetic force on the electromagnetic coil 7 gradually increases, the metal block 9 can drive the moving blocks 8 at both ends to move towards each other under the magnetic force of the electromagnetic coil 7. Thus, the moving rod 17 can push the moving rods 17 on both sides to move towards each other, and the clamping block 18 moves towards each other under the action of the moving rod 17 to clamp the two sides of the transmission line. As the moving blocks 8 move towards each other, the clamping block 18 can pull the two sides of the transmission line to tighten. S3. Alarm Operation: When the moving block 8 moves to the limit position, the current value of the power line exceeds the set threshold. Then, the lifting rod 10 can drive the inclined block 14 to move to the inclined surface at the bottom of the inclined rod 13. At the same time, the bottom of the inclined rod 13 rotates away from the lifting rod 10 under the action of the inclined block 14 and comes into contact with the pressure sensor 12 to apply pressure. Thus, the pressure sensor 12 can convert the pressure value into an electrical signal and transmit it to the remote controller to issue an alarm to the power operation and maintenance personnel. At the same time, the remote controller activates the audible and visual alarm 27 to warn the surrounding area and remind the surrounding personnel to pay attention. S4. Power-off operation: As the inclined rod 13 rotates away from the lifting rod 10, and the inclined rod 13 drives the second locking block 26 to move and disengage from the first locking block 25, the second spring 22 can push the lifting rod 21 to move vertically upward under its own elastic force. Then, under the action of the lifting rod 21, the support block 24 can push the conductive rod 6 upward through the rectangular frame 23 to flip it, and the conductive rod 6 disengages from the inner wall of the connecting groove 401, thus realizing the power-off operation of the power line.

[0044] Furthermore, the existing device can disconnect power to faulty circuits during actual use, making it convenient to use and superior to traditional products.

[0045] The standard parts used in this embodiment can be purchased directly from the market, while the non-standard structural parts described in the specification and drawings can be processed directly based on existing technical knowledge without any doubt. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A monitoring and alarm device for power lines, comprising a remote controller, characterized in that: The system includes a fixed frame (1) that is fixedly installed on the top of an overhead line tower. A rectangular shell (2) is fixedly connected to one side of the fixed frame (1). A first connector (3) connected to one end of the transmission line is fixedly connected to one side of the bottom of the rectangular shell (2). A third connector (5) connected to the other end of the transmission line is fixedly connected to the top of the rectangular shell (2) away from the first connector (3). A second connector (4) is fixedly connected to the end of the rectangular shell (2) near the third connector (5). An electromagnetic coil (7) for monitoring the transmission line is fixedly connected to the first connector (3) and the second connector (4). A conductive rod (6) for energizing or de-energizing is rotatably connected to the third connector (5). A connecting groove (401) for energizing the conductive rod (6) is provided on the second connector (4). An alarm mechanism for alarming transmission line faults and a power-off mechanism for de-energizing the transmission line are provided on the fixed frame (1).

2. The monitoring and alarm device for power lines according to claim 1, characterized in that: The alarm mechanism includes two horizontally movable blocks (8) at symmetrical positions on the inner wall of the fixed frame (1). The opposite ends of the two movable blocks (8) are fixedly connected to metal blocks (9) for the electromagnetic coil (7) to attract the movable blocks (8) to move towards each other. The inner wall of the rectangular shell (2) is connected to a lifting rod (10) for lifting movement. The two movable blocks (8) are rotatably connected to an adjusting rod (11) on the side of the rectangular shell (2) that is close to the rectangular shell (2) for pushing the lifting rod (10) to move up and down. The ends of the two adjusting rods (11) away from the movable blocks (8) are rotatably connected to the bottom end of the lifting rod (10) on the same axis.

3. A monitoring and alarm device for power lines according to claim 2, characterized in that: The rectangular housing (2) is fixedly connected to an audible and visual alarm (27) that is electrically connected to a remote controller at one end, and a pressure sensor (12) that is signal-connected to a remote controller is fixedly connected to the inner wall of the rectangular housing (2). An inclined rod (13) is rotatably connected to the inner wall of the rectangular housing (2). An inclined block (14) that pushes the inclined rod (13) to rotate and applies pressure to the pressure sensor (12) is fixedly connected to the side of the bottom end of the lifting rod (10) near the inclined rod (13).

4. A monitoring and alarm device for power lines according to claim 3, characterized in that: The power-off mechanism includes a lifting rod (10) with a moving groove (101) on it. The inner wall of the moving groove (101) is connected to a lifting rod (21) that pushes the conductive rod (6) to cut off the power to the second connector (4). The end of the lifting rod (21) is fixedly connected to a support block (24). The end of the conductive rod (6) near the lifting rod (21) is fixedly connected to a rectangular frame (23) for the support block (24) to push the conductive rod (6) to flip and cut off the power. The end of the support block (24) away from the lifting rod (21) extends through to the inner wall of the rectangular frame (23) and is movably connected.

5. A monitoring and alarm device for power lines according to claim 4, characterized in that: A second spring (22) is fixedly connected to the bottom end of the lifting rod (21) on the opposite surface of the moving groove (101) to guide the lifting rod (21) to reset and move. A second locking block (26) is fixedly connected to the bottom end of the inclined rod (13) near the lifting rod (10) to lock the position of the lifting rod (21). A first locking block (25) that abuts against the second locking block (26) is fixedly connected to the bottom end of the lifting rod (21) near the inclined rod (13).

6. A monitoring and alarm device for power lines according to claim 2, characterized in that: Each of the movable blocks (8) has a circular perforated plate (15) for supporting the transmission line fixedly connected at both ends symmetrically. Each of the two adjacent circular perforated plates (15) has a fixed block (16) fixedly connected at both ends symmetrically. The fixed block (16) is provided with a clamping mechanism for the movable block (8) to pull the transmission line.

7. A monitoring and alarm device for power lines according to claim 6, characterized in that: The clamping mechanism includes a moving rod (17) that is horizontally connected to each of the fixed blocks (16), and a clamping block (18) for clamping the cable is fixedly connected to the opposite ends of the two moving rods (17) at each end.

8. The monitoring and alarm device and method for power lines according to claim 7, characterized in that: The fixed frame (1) has a U-shaped frame (20) fixedly connected at both ends of the fixed frame (1) at symmetrical positions. The U-shaped frame (20) pushes the clamping block (18) to move towards each other and clamps the power transmission line. Each clamping block (18) is fixedly connected to a first spring (19) on the opposite side of the circular perforated plate (15) on the opposite side, which guides the clamping block (18) to move back to its original position.

9. A monitoring and alarm method based on power lines, applied to a monitoring and alarm device based on power lines as described in any one of claims 1-8, comprising the following steps: S1, Monitoring circuit: When current passes through the electromagnetic coil (7), under normal working conditions, a small magnetic force is generated around the electromagnetic coil (7). When the power line fails, the current will surge instantly, and the magnetic force around the electromagnetic coil (7) will increase accordingly. S2, Tighten the transmission line: As the magnetic force on the electromagnetic coil (7) gradually increases, the metal block (9) can drive the moving blocks (8) at both ends to move towards each other under the magnetic force of the electromagnetic coil (7). Thus, the moving rod (17) can push the moving rods (17) on both sides to move towards each other, and the clamping block (18) moves towards each other under the action of the moving rod (17) to clamp the two sides of the transmission line. As the moving blocks (8) move towards each other, the clamping block (18) can pull the two sides of the transmission line to tighten. S3, Alarm Operation: When the moving blocks (8) move to the limit position, the current value of the power line exceeds the set threshold. Then the lifting rod (10) can drive the inclined block (14) to move to the inclined surface at the bottom of the inclined rod (13). At the same time, the bottom of the inclined rod (13) rotates away from the lifting rod (10) under the action of the inclined block (14) and comes into contact with the pressure sensor (12) to apply pressure. Thus, the pressure sensor (12) can convert the pressure value into an electrical signal and transmit it to the remote controller to issue an alarm to the power operation and maintenance personnel. At the same time, the remote controller activates the sound and light alarm (27) to warn the surrounding area and remind the surrounding personnel to pay attention. S4. Power-off operation: As the inclined rod (13) rotates away from the lifting rod (10), and the inclined rod (13) drives the second locking block (26) to move and disengage from the first locking block (25), the second spring (22) can push the lifting rod (21) to move in the vertical direction under its own elastic force. Then, the support block (24) can push the conductive rod (6) to flip upward through the rectangular frame (23) under the action of the lifting rod (21), and the conductive rod (6) disengages from the inner wall of the connecting groove (401), thus realizing the power-off operation of the power line.

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