A power distribution network distributed protection system and method

Abstract

The application discloses a kind of distribution network distributed protection system and method, including box, the bottom end of box is equipped with several wire holes, the bottom end of the inside of box is equipped with placing box, the both sides of the top of placing box are equipped with strut, the bottom end of two struts is equipped with mounting plate, the middle of mounting plate is equipped with several grooves, the bottom end of each groove is equipped with sleeve, the bottom end of sleeve is equipped with limit cylinder, sleeve and limit cylinder are made of insulating material, the both sides of each sleeve top are equipped with detection plate, the side of detection plate is equipped with opaque plate, two opaque plates are on opposite side, a kind of distribution network distributed protection system and method are disclosed in the application, whether the detection plate equipped can detect that wire appears fracture, and make response measure in advance, the occurrence of fracture phenomenon is detected quickly, the lead pipe equipped can protect the wire of fracture, mark it, avoid its secondary fracture.

Description

Technical Field

[0001] This invention relates to the field of power distribution networks, and in particular to a distributed protection system and method for power distribution networks. Background Technology

[0002] As a type of power grid, the power distribution network can distribute electrical energy. In the process of distributing electrical energy in the power distribution network, power distribution equipment is needed to assist in power supply. As a type of power distribution equipment, the distribution box is used frequently. When distributing power through the distribution box, cables, wires and other wires need to be connected to ensure the supply of circuits.

[0003] During the installation of a distribution box, external wires are introduced to its bottom. These external wires are bent at the bottom of the distribution box. Due to the complex structure of the power grid, multiple power supply wires are wound inside the introduced wires. Over time, weathering and compression can cause some of these external wires to break, causing the strands to separate. These broken wires may cause leakage and affect the power supply. Because there are many wires inside the distribution box, maintenance requires checking each one individually, and maintenance personnel must be careful to avoid the effects of leakage. Therefore, we propose a distributed protection system and method for power distribution networks that can detect broken circuits, protect the broken points to prevent leakage, and facilitate maintenance by personnel. Summary of the Invention

[0004] The main objective of this invention is to provide a distributed protection system and method for power distribution networks, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A distributed protection system and method for a power distribution network includes a housing. The bottom of the housing has several through holes. A placement box is located inside the bottom of the housing. Support rods are installed on both sides of the top of the placement box. Mounting plates are installed at the bottom ends of two of the support rods. Several slots are formed in the middle of the mounting plates. A sleeve is installed at the bottom end of each slot. A limit sleeve is installed at the bottom end of each sleeve. Both the sleeve and the limit sleeve are made of insulating material. A detection plate is installed on opposite sides of the top of each sleeve. One side of the detection plate is equipped with... The device is equipped with two opaque plates, each on a opposite side. The surface of each opaque plate has a light-transmitting magnetic line outline, and a light-transmitting sheet is provided on the side corresponding to each magnetic line outline. A liquid storage tank is provided in the middle of the detection plate. The side of the liquid storage tank adjacent to the opaque plate and the side opposite to it are made of transparent and light-transmitting material. The liquid storage tank contains a magnetic suspension liquid, and several granular magnetic blocks are installed inside the magnetic suspension liquid. A light-transmitting box is installed on the other side of the liquid storage tank, and a photosensitive switch is installed in the middle of the inner wall of the light-transmitting box away from the liquid storage tank.

[0006] Furthermore, a first mounting block is installed at the top of each side of the two detection plates, and a second mounting block is installed at the bottom of each side of the two detection plates. A connecting rod is installed between the first mounting block and the second mounting block, and a first rotating gear is installed on the surface of the connecting rod. The diameter of the first rotating gear is greater than the length of the first mounting block and the second mounting block.

[0007] Furthermore, each of the detection plates has a second rotating gear meshing on both sides, and a fixing rod is installed at the top of the middle part of each of the second rotating gears. A rotating motor is installed at the other end of each fixing rod. The rotating motors are all fixedly installed at the top of the mounting plate. The photosensitive switch is a rotating motor switch.

[0008] Furthermore, a light source is installed inside the mounting plate, and the position of the light source corresponds to the middle of the two detection plates. The light source can be an LED light, a small light bulb, etc. The power supply for the light source is the internal power supply of the housing, and the light source is intermittently turned off and constantly lit.

[0009] Furthermore, the bottom end of the limiting cylinder is provided with a limiting port, a lead tube is installed inside the limiting cylinder, a placement plate is provided on the lead tube, a support column is installed through the surface of the placement plate, a top plate is installed at the top of the support column, and connecting lines are installed on both sides of the top plate, and the connecting lines are connected to the bottom end of the detection plate.

[0010] Furthermore, a turntable is installed at the bottom of the placement plate, the inside of the support column is hollow, and each support column is equipped with a roller inside. The diameter of the roller is smaller than the diameter of the support column and it can rotate freely inside the support column.

[0011] Furthermore, the top of the lead tube is funnel-shaped, the middle part of the lead tube is provided with an inner layer and an outer layer, the inner layer is made of elastic material, a seepage port is provided between the inner layer and the outer layer, the inner layer and the outer layer are both rotated and wound, the area of ​​the outer layer is larger than the area of ​​the inner layer, and a drain port is installed at the bottom of the lead tube, the drain port and the seepage port are interconnected.

[0012] Furthermore, the method of use is as follows: Step 1: When using the device, first pass the wires connecting the box through the through hole, and then through the lead tube, limiting cylinder, sleeve and mounting plate in sequence. If a broken wire is found, the detection plate can detect the condition of the wire. The wire will generate a magnetic field during the power-on process. Since the magnetic field lines are drawn on the opaque plate in advance and marked with the magnetic field line outline, the magnetic blocks inside the magnetic suspension will be arranged into the shape of the magnetic field lines under the action of the magnetic field, which will block the light-transmitting sheet behind the magnetic field line outline. The photosensitive switch will not be affected by the light source. Step 2: When a broken wire occurs, the magnetic field lines change, causing the magnetic blocks inside the magnetic suspension to rearrange. The obstruction on the surface of the light-transmitting sheet behind the original magnetic field lines will become visible. At this time, the photosensitive switch senses the light generated by the light source through the magnetic suspension and the light-transmitting box, thus detecting whether the wire is broken and protecting the wire. When the rotating motor receives the signal from the photosensitive switch, the rotating motor will drive the second rotating gear to rotate through the fixed rod. The second rotating gear meshes with the first rotating gear and also drives the first rotating gear to rotate, thereby driving the detection plate to rise. Step 3: When the detection plate rises, it pulls the connecting line, which in turn lifts the top plate. As the top plate rises, it lifts the support column. During this rise, the support column rotates on the turntable surface via rollers, allowing the lead tube to be fitted onto the broken wire. This facilitates marking the wire and reduces vertical friction. When the lead tube is fitted onto the wire, the broken wire will cause the wire strands to expand in diameter. The inner layer and perforations help to mitigate some of the expansion force, allowing the wire to gather together. Additionally, if rainwater is encountered, the perforations collect some of the rainwater and drain it out through the drain outlet, protecting the broken wire strands.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The detection plate can detect whether the wire is broken. When the wire is energized, it generates a magnetic field. Since the magnetic field lines are drawn on the opaque plate in advance and marked with magnetic field lines outline, the magnetic blocks inside the magnetic suspension will be arranged into the shape of magnetic field lines under the action of the magnetic field, blocking the light-transmitting sheet behind the magnetic field lines outline. The photosensitive switch is not affected by the light source. When a broken wire occurs, the magnetic field lines will change, causing the magnetic blocks inside the magnetic suspension to rearrange. The blocking on the surface of the light-transmitting sheet behind the original magnetic field lines outline will become visible. At this time, the photosensitive switch senses the light generated by the light source through the magnetic suspension and the light-transmitting box, and can detect whether the wire is broken, thus protecting the wire. 2. The included lead tube protects the broken wire. When the rotating motor receives a signal from the photosensitive switch, it drives the second rotating gear via a fixed rod. The second rotating gear meshes with the first rotating gear, also driving the first rotating gear to rotate, thus raising the detection plate. As the detection plate rises, it pulls the connecting wire, which in turn raises the top plate. The top plate then raises the support column. As the support column rises, it rotates on the turntable surface via rollers, allowing the lead tube to be fitted over the broken wire, facilitating marking and reducing vertical friction. When the lead tube is fitted over the wire, the broken section causes the wire strands to expand in diameter. The included inner layer and permeable openings alleviate some of the expansion force, helping to gather the strands together. Additionally, the permeable openings collect some rainwater and drain it through the drain outlet, protecting the broken wire strands. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a distributed protection system and method for a power distribution network according to the present invention; Figure 2 This is a schematic diagram of the mounting plate of a distributed protection system and method for power distribution networks according to the present invention; Figure 3 This is a schematic diagram of the internal structure of the mounting plate of the distributed protection system and method for power distribution networks according to the present invention; Figure 4 This is a schematic diagram of the structure of A in the distributed protection system and method for power distribution networks of the present invention; Figure 5 This is a schematic diagram of the sleeve structure of a distributed protection system and method for a power distribution network according to the present invention; Figure 6 This is a schematic diagram of the internal structure of the detection board of a distributed protection system and method for power distribution networks according to the present invention; Figure 7 This is a schematic diagram of the limiting cylinder of a distributed protection system and method for a power distribution network according to the present invention; Figure 8 This is a schematic diagram of the lead tube structure of a distributed protection system and method for power distribution networks according to the present invention.

[0015] In the diagram: 1. Box body; 2. Through hole; 3. Placement box; 4. Support rod; 5. Mounting plate; 6. Sleeve; 7. Limiting cylinder; 8. Detection plate; 9. Lead tube; 10. First mounting block; 11. First rotating gear; 12. Second mounting block; 13. Connecting rod; 14. Second rotating gear; 15. Fixing rod; 16. Rotating motor; 17. Light source; 18. Light-transmitting box; 19. Photosensitive switch; 20. Liquid storage tank; 21. Magnetic block; 22. Magnetic suspension; 23. Opaque plate; 24. Magnetic wire outline; 25. Light-transmitting sheet; 26. Connecting wire; 27. Top plate; 28. Support column; 29. ​​Placement plate; 30. Turntable; 31. Roller; 32. Inner layer; 33. Outer layer; 34. Infiltration port; 35. Drain port. Detailed Implementation

[0016] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1

[0018] like Figure 1-8As shown, a distributed protection system and method for a power distribution network includes a box (1), with several through holes (2) at the bottom of the box (1). A placement box (3) is provided at the bottom of the box (1). Support rods (4) are installed on both sides of the top of the placement box (3). Mounting plates (5) are installed at the bottom of the two support rods (4). Several slots are provided in the middle of the mounting plate (5). A sleeve (6) is installed at the bottom of each slot. A limiting sleeve (7) is installed at the bottom of the sleeve (6). The sleeve (6) and the limiting sleeve (7) are both made of insulating material. A detection plate (8) is installed on the opposite sides of the top of each sleeve (6). An opaque plate (23) is installed on one side of the detection plate (8). Two opaque plates (23) are located on opposite sides. The surface of the opaque plate (23) is provided with magnetic wire outlines (24). Each magnetic wire outline (24) is provided with a light-transmitting sheet (25) on the corresponding side. The middle of the detection plate (8) is provided with a liquid storage tank (20). The side of the liquid storage tank (20) adjacent to the opaque plate (23) and the side opposite to it are made of transparent and light-transmitting material. The inside of the liquid storage tank (20) is provided with magnetic suspension liquid (22). Several granular magnetic blocks (21) are installed inside the magnetic suspension liquid (22). A light-transmitting box (18) is installed on the other side of the liquid storage tank (20). A photosensitive switch (19) is installed in the middle of the inner wall of the light-transmitting box (18) away from the liquid storage tank (20).

[0019] A first mounting block (10) is installed at the top of each side of the two detection plates (8), and a second mounting block (12) is installed at the bottom of each side of the two detection plates (8). A connecting rod (13) is installed between the first mounting block (10) and the second mounting block (12). A first rotating gear (11) is installed on the surface of the connecting rod (13). The diameter of the first rotating gear (11) is greater than the length of the first mounting block (10) and the second mounting block (12).

[0020] Each detection plate (8) has a second rotating gear (14) meshing on both sides. A fixing rod (15) is installed at the top of the middle part of the second rotating gear (14). A rotating motor (16) is installed at the other end of each fixing rod (15). The rotating motor (16) is fixedly installed at the top inside the mounting plate (5). The photosensitive switch (19) is the switch for the rotating motor (16).

[0021] The mounting plate (5) is equipped with a light source (17). The position of the light source (17) corresponds to the middle of the two detection plates (8). The light source (17) can be an LED light, a small light bulb, etc. The power supply of the light source (17) is the internal power supply of the box (1). The light source (17) is intermittently turned off and constantly lit.

[0022] By adopting the above technical solution: the detection plate (8) can detect whether the wire is broken. The wire generates a magnetic field during the power-on process. Since the magnetic field lines are drawn on the opaque plate (23) in advance and marked with the magnetic field outline (24), the magnetic blocks (21) inside the magnetic suspension liquid (22) will be arranged into the shape of magnetic field lines under the action of the magnetic field, blocking the light-transmitting sheet (25) behind the magnetic field outline (24). The photosensitive switch (19) will not be affected by the light source (17). When a broken wire occurs, the magnetic field lines will change, causing the magnetic blocks (21) inside the magnetic suspension liquid (22) to rearrange. The blocking on the surface of the light-transmitting sheet (25) behind the original magnetic field outline (24) will be revealed. At this time, the photosensitive switch (19) senses the light generated by the light source (17) through the influence of the magnetic suspension liquid (22) and the light-transmitting box (18), and gives an indication to the rotating motor (16), thus detecting whether the wire is broken and protecting the wire.

[0023] Example 2

[0024] like Figure 1-8 As shown, a distributed protection system and method for a power distribution network includes a box (1), with several through holes (2) at the bottom of the box (1). A placement box (3) is provided at the bottom of the box (1). Support rods (4) are installed on both sides of the top of the placement box (3). Mounting plates (5) are installed at the bottom of the two support rods (4). Several slots are provided in the middle of the mounting plate (5). A sleeve (6) is installed at the bottom of each slot. A limiting sleeve (7) is installed at the bottom of the sleeve (6). The sleeve (6) and the limiting sleeve (7) are both made of insulating material. A detection plate (8) is installed on the opposite sides of the top of each sleeve (6). An opaque plate (23) is installed on one side of the detection plate (8). Two opaque plates (23) are located on opposite sides. The surface of the opaque plate (23) is provided with magnetic wire outlines (24). Each magnetic wire outline (24) is provided with a light-transmitting sheet (25) on the corresponding side. The middle of the detection plate (8) is provided with a liquid storage tank (20). The side of the liquid storage tank (20) adjacent to the opaque plate (23) and the side opposite to it are made of transparent and light-transmitting material. The inside of the liquid storage tank (20) is provided with magnetic suspension liquid (22). Several granular magnetic blocks (21) are installed inside the magnetic suspension liquid (22). A light-transmitting box (18) is installed on the other side of the liquid storage tank (20). A photosensitive switch (19) is installed in the middle of the inner wall of the light-transmitting box (18) away from the liquid storage tank (20).

[0025] The bottom end of the limiting cylinder (7) is provided with a limiting port. The limiting cylinder (7) is equipped with a lead tube (9). The lead tube (9) is provided with a placement plate (29). A support column (28) is installed through the surface of the placement plate (29). A top plate (27) is installed at the top of the support column (28). Connecting wires (26) are installed on both sides of the top plate (27). The connecting wires (26) are connected to the bottom end of the detection plate (8).

[0026] A turntable (30) is installed at the bottom of the placement plate (29). The inside of the support column (28) is hollow. Each support column (28) is equipped with a roller (31). The diameter of the roller (31) is smaller than the diameter of the support column (28) and it can rotate freely inside the support column (28).

[0027] The top of the lead tube (9) is funnel-shaped. The middle part of the lead tube (9) is provided with an inner layer (32) and an outer layer (33). The inner layer (32) is made of elastic material. There is a seepage port (34) between the inner layer (32) and the outer layer (33). The inner layer (32) and the outer layer (33) are both rotated and wound. The area of ​​the outer layer (33) is larger than the area of ​​the inner layer (32). The bottom end of the lead tube (9) is equipped with a drain port (35). The drain port (35) and the seepage port (34) are interconnected.

[0028] By adopting the above technical solution: the lead tube (9) can protect the broken wire. When the rotating motor (16) receives the signal from the photosensitive switch (19), the rotating motor (16) will drive the second rotating gear (14) to rotate through the fixed rod (15). The second rotating gear (14) meshes with the first rotating gear (11) and will also drive the first rotating gear (11) to rotate, thereby driving the detection plate (8) to rise. When the detection plate (8) rises, the detection plate (8) will pull the connecting line (26). The connecting line (26) will drive the top plate (27) to rise. When the top plate (27) rises, the top plate (27) will... The support column (28) is raised. When the support column (28) is raised, it can rotate on the surface of the turntable (30) through the roller (31), so that the lead tube (9) is fitted on the surface of the broken wire, which is convenient for marking the wire and at the same time reduces the friction force it receives vertically. When the lead tube (9) is fitted on the surface of the wire, the diameter of the wire strand will increase due to the broken wire. The inner layer (32) and the infiltration port (34) can alleviate part of the expansion force and make it gather. At the same time, if it encounters rainwater, the infiltration port (34) can collect part of the rainwater and discharge it from the drain (35), thus protecting the broken wire strand.

[0029] It should be noted that this invention is a distributed protection system and method for a power distribution network. In use, the wire connecting the box (1) is first passed through the through hole (2), and then passes through the lead pipe (9), the limiting cylinder (7), the sleeve (6), and the mounting plate (5) in sequence. If a broken wire is found, the condition of the wire can be detected by the detection plate (8). The wire will generate a magnetic field during the energization process. Since the magnetic field lines are drawn on the opaque plate (23) in advance and marked with the magnetic line outline (24), the magnetic blocks (21) inside the magnetic suspension (22) will be arranged into the shape of magnetic field lines under the action of the magnetic field. The light-transmitting sheet (25) behind the magnetic wire outline (24) is blocked, so the photosensitive switch (19) is not affected by the light source (17). When a broken wire occurs, the magnetic field lines will change, causing the magnetic blocks (21) inside the magnetic suspension fluid (22) to rearrange. The blockage on the surface of the light-transmitting sheet (25) behind the original magnetic wire outline (24) will become visible. At this time, the photosensitive switch (19) senses the light generated by the light source (17) through the influence of the magnetic suspension fluid (22) and the light-transmitting box (18), and gives an indication to the rotating motor (16). This can detect whether the wire has broken and protect the wire. (9) It can protect broken wires. When the rotating motor (16) receives the signal from the photosensitive switch (19), the rotating motor (16) will drive the second rotating gear (14) to rotate through the fixed rod (15). The second rotating gear (14) meshes with the first rotating gear (11) and will also drive the first rotating gear (11) to rotate, thereby driving the detection plate (8) to rise. When the detection plate (8) rises, the detection plate (8) will pull the connecting line (26). The connecting line (26) will drive the top plate (27) to rise. When the top plate (27) rises, the top plate (27) will drive the support column (28). As the support (28) rises, it can rotate on the surface of the turntable (30) via the roller (31), allowing the lead tube (9) to be fitted onto the surface of the broken wire, making it convenient to mark the wire and reducing the friction force it experiences vertically. When the lead tube (9) is fitted onto the surface of the wire, the diameter of the wire strands will increase due to the broken wire. The inner layer (32) and the infiltration port (34) can alleviate some of the expansion force and make it gather together. At the same time, if it encounters rainwater, the infiltration port (34) can collect some of the rainwater and discharge it from the drain (35), protecting the broken wire strands.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A distributed protection system for a power distribution network, comprising a box, wherein the bottom of the box has a plurality of through holes, a placement box is provided at the bottom of the interior of the box, support rods are installed on both sides of the top of the placement box, and mounting plates are installed at the bottom ends of two of the support rods, characterized in that, The mounting plate has several slots in its center, and a sleeve is installed at the bottom of each slot. A limiting sleeve is installed at the bottom of each sleeve. Both the sleeve and the limiting sleeve are made of insulating material. A detection plate is installed on opposite sides of the top of each sleeve. An opaque plate is installed on one side of each detection plate, with two opaque plates on opposite sides. The surface of each opaque plate has a light-transmitting magnetic wire outline, and a light-transmitting sheet is installed on the side corresponding to each magnetic wire outline. A liquid storage tank is located in the center of the detection plate. The liquid storage tank and the opaque plate... The adjacent side and its opposite side are made of transparent and light-transmitting material. The inside of the liquid storage tank contains a magnetic suspension, and several granular magnetic blocks are installed inside the magnetic suspension. A light-transmitting box is installed on the other side of the liquid storage tank, and a photosensitive switch is installed in the middle of the inner wall of the light-transmitting box away from the liquid storage tank. When a broken wire occurs, the magnetic field lines will change, causing the magnetic blocks inside the magnetic suspension to rearrange. At this time, the photosensitive switch senses the light generated by the light source through the magnetic suspension and the light-transmitting box, which can detect whether the wire is broken and protect the wire.

2. The distributed protection system for a distribution network according to claim 1, characterized in that: A first mounting block is installed at the top of each of the two sides of the two detection plates, and a second mounting block is installed at the bottom of each of the two sides of the two detection plates. A connecting rod is installed between the first mounting block and the second mounting block, and a first rotating gear is installed on the surface of the connecting rod. The diameter of the first rotating gear is greater than the length of the first mounting block and the second mounting block.

3. A distributed protection system for a power distribution network according to claim 2, characterized in that: Each of the detection plates has a second rotating gear meshing on both sides, and a fixing rod is installed at the top of the middle part of each of the second rotating gears. A rotating motor is installed at the other end of each fixing rod. The rotating motor is fixedly installed at the top of the mounting plate. The photosensitive switch is a rotating motor switch.

4. A distributed protection system for a power distribution network according to claim 3, characterized in that: The mounting plate contains a light source, the position of which corresponds to the middle of the two detection plates. The light source is an LED or a small bulb, and the power supply for the light source is the internal power supply of the housing. The light source is intermittently turned off and constantly lit.

5. A distributed protection system for a power distribution network according to claim 4, characterized in that: The bottom end of the limiting cylinder is provided with a limiting port, a lead tube is installed inside the limiting cylinder, a placement plate is provided on the lead tube, a support column is installed through the surface of the placement plate, a top plate is installed at the top of the support column, and connecting lines are installed on both sides of the top plate, and the connecting lines are connected to the bottom end of the detection plate.

6. A distributed protection system for a power distribution network according to claim 5, characterized in that: A turntable is installed at the bottom of the placement plate. The inside of the support column is hollow, and each support column is equipped with a roller. The diameter of the roller is smaller than the diameter of the support column, and it can rotate freely inside the support column.

7. A distributed protection system for a distribution network according to claim 6, characterized in that: The top of the lead tube is funnel-shaped, and the middle part of the lead tube is provided with an inner layer and an outer layer. The inner layer is made of elastic material, and a seepage port is provided between the inner layer and the outer layer. Both the inner layer and the outer layer are rotated and wound. The area of ​​the outer layer is larger than that of the inner layer. A drain port is installed at the bottom of the lead tube, and the drain port and the seepage port are interconnected.

8. The method of using a distributed protection system for a power distribution network according to claim 7, characterized in that: The usage method is as follows: Step 1: When using the device, first pass the wires connecting the box through the through hole, and then through the lead tube, limiting cylinder, sleeve, and mounting plate in sequence. If a broken wire is found, the detection plate can detect the condition of the wire. The wire will generate a magnetic field during the power-on process. Since the magnetic field lines are drawn on the opaque plate in advance and marked with the magnetic field line outline, the magnetic blocks inside the magnetic suspension will be arranged into the shape of the drawn magnetic field lines under the action of the magnetic field, which will block the magnetic field line outline on the opaque plate behind the magnetic field line outline. The photosensitive switch will not be affected by the light source. Step 2: When a broken wire occurs, the magnetic field lines change, causing the magnetic blocks inside the magnetic suspension to rearrange. The obstruction on the surface of the light-transmitting sheet behind the original magnetic field lines will become visible. At this time, the photosensitive switch senses the light generated by the light source through the magnetic suspension and the light-transmitting box, which can detect whether the wire is broken and protect the wire. When the rotating motor receives the signal from the photosensitive switch, the rotating motor will drive the second rotating gear to rotate through the fixed rod. The second rotating gear meshes with the first rotating gear and also drives the first rotating gear to rotate, thereby driving the detection plate to rise. Step 3: When the detection plate rises, it pulls the connecting line, which in turn lifts the top plate. As the top plate rises, it lifts the support column. As the support column rises, it rotates on the turntable surface via rollers, causing the lead tube to be fitted onto the broken wire surface. This facilitates marking the wire and reduces vertical friction. When the lead tube is fitted onto the wire surface, the broken wire will cause the wire strands to expand in diameter. The inner layer and seepage holes can alleviate some of the expansion force, allowing the wire to gather together. Additionally, if rainwater is encountered, the seepage holes can collect some of the rainwater and drain it out through the drain outlet, protecting the broken wire strands.

Images