A lightning protection detection device
By designing a connecting frame and positioning blocks, and combining vibration detection with a striking plate, the problem of inconsistent images in lightning arrester detection by UAV detection devices was solved, improving the accuracy and efficiency of detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUAIBEI ENG TESTING & INSPECTION CO LTD
- Filing Date
- 2026-04-22
- Publication Date
- 2026-07-14
AI Technical Summary
Existing drone detection devices suffer from inconsistent image resolution and imaging ratios due to environmental factors when detecting lightning arresters, affecting the accuracy and reliability of the detection results.
By setting up a connecting frame, positioning block, and clamping parts, the drone is stably connected to the lightning receiver. In conjunction with a striking plate, the lightning receiver is subjected to vibration detection, which improves image consistency and defect detection efficiency.
A stable connection between the drone and the lightning arrester was achieved, improving the consistency of image acquisition and the accuracy and efficiency of lightning arrester defect detection.
Smart Images
Figure CN122385993A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of lightning arrester testing technology, specifically to a lightning protection testing device. Background Technology
[0002] Currently, the inspection of lightning protection devices still relies primarily on traditional manual inspections. While this method is direct, it presents challenges such as high safety risks and low efficiency when inspecting high-altitude lightning conductors. Using unmanned aerial vehicle (UAV) platforms can overcome these shortcomings, offering advantages such as stable hovering, high identification and detection efficiency, and strong operational safety.
[0003] However, when existing drone inspection devices circle the lightning arrester to capture omnidirectional images, their flight paths are easily affected by various environmental and technical factors such as wind force, electromagnetic interference, GPS signal stability, and their own positioning accuracy. This causes fluctuations in the relative distance between the drone and the lightning arrester. Such deviations in distance directly affect the resolution, imaging ratio, and viewing angle consistency of the acquired images. Consequently, they cause errors in the subsequent identification and judgment of minor defects such as lightning arrester morphology, corrosion damage, and loose connections based on image recognition, ultimately limiting the accuracy and reliability of the inspection results. Summary of the Invention
[0004] The purpose of this invention is to provide a lightning protection detection device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a lightning protection detection device, comprising a drone body, a bracket, and a lightning arrester body. A connecting frame is provided on the surface of the bracket, and a positioning box is provided at one end of the connecting frame away from the bracket. A positioning block adapted to the lightning arrester body is provided inside the positioning box. A slot for the lightning arrester body to be inserted is opened on the surface of the positioning block, and an insulating strip is provided on the inner wall of the slot. When the lightning arrester body is inserted into the slot, the connecting frame assists the UAV body to move in a circle around the lightning arrester body with the lightning arrester body as the center.
[0006] Preferably, the positioning block slides within the positioning box and further includes a positioning component for clamping the lightning arrester body. The positioning component includes an adjusting block fixedly connected to the surface of the positioning block, and the surface of the positioning box is provided with a plurality of clamping members respectively adapted to the adjusting block and the lightning arrester body.
[0007] Preferably, the clamping member includes two rotating shafts rotatably connected to the surface of the positioning box. The rotating shafts are respectively fixedly connected to an active rod adapted to the adjusting block and a driven rod adapted to the lightning arrester body. The two sides of the adjusting block are set as inclined surfaces and abut against the active rod.
[0008] Preferably, the side of the driven rod that contacts the lightning arrester body is provided with an insulating coating.
[0009] Preferably, a torsion spring is provided at the rotatable connection between the rotating shaft and the positioning box.
[0010] Preferably, it also includes an auxiliary component disposed at the bottom of the positioning box. The auxiliary component includes a striking plate disposed at the bottom of the positioning box, a fixing ring fixedly connected to the surface of the connecting frame, the striking plate being hinged to the surface of the fixing ring, and a driving component for reciprocating the striking plate to strike the lightning arrester body to verify defects and looseness.
[0011] Preferably, the driving assembly includes a rotating wheel rotatably connected within the positioning block, one side of the rotating wheel extending into a slot, and a synchronous shaft fixedly connected to the center of the bottom of the rotating wheel. The synchronous shaft passes through the bottom of the positioning block and is fixedly connected to a paddle adapted to the striking plate. A torsion spring is provided at the hinge point between the striking plate and the fixed ring.
[0012] Preferably, the connecting frame is made of materials including but not limited to plastic and carbon fiber.
[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention, through the setting of a connecting frame, positioning block and its surface slots, enables the UAV body to connect with the lightning arrester body during flight via the slots. This allows the connecting frame to position the radius of the UAV body's rotation around the lightning arrester body, ensuring that the distance between the UAV body and the lightning arrester remains stable, improving the consistency of acquired images, and increasing the efficiency of detecting defects in lightning protection lightning arresters.
[0014] This invention uses a striking plate, which, through the movement of the drone itself, causes a positioning block to rotate around the lightning arrester body. This relative rotation causes a wheel in the slot to rotate, and continuously drives a paddle to reciprocate to move the striking plate. Under the action of a torsion spring, the striking plate reciprocates to strike the lightning arrester body, magnifying any loose or flawed defects on the surface of the lightning arrester body. This makes it easier for the drone to detect these defects and improves the efficiency of defect detection. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram illustrating the state of the entire device after it is connected to the lightning arrester body. Figure 3 This is a schematic diagram illustrating the connection state between the positioning box and the positioning block according to the present invention; Figure 4 This is a schematic diagram illustrating the state of the clamping element when it clamps the lightning arrester body according to the present invention; Figure 5This is a schematic diagram illustrating the auxiliary components of the present invention; Figure 6 This is a schematic diagram illustrating the disassembled structure of the positioning box and positioning block used in this invention.
[0016] In the diagram: 1. UAV body; 11. Support frame; 12. Lightning arrester body; 2. Connecting frame; 21. Positioning box; 211. Positioning block; 212. Slot; 213. Insulating tape; 22. Adjusting block; 221. Rotating shaft; 222. Driving rod; 223. Driven rod; 3. Fixing ring; 31. Striking plate; 32. Rotating wheel; 321. Synchronous shaft; 322. Pulley. Detailed Implementation
[0017] 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.
[0018] This invention discloses a lightning protection detection device for detecting the lightning arrester body 12. To facilitate understanding of the technical solution and working principle of this invention, a brief introduction to the lightning arrester is provided first. The lightning arrester is a key component of an external lightning protection system, forming a complete direct lightning strike protection system together with the down conductor and grounding device. Its function is to actively attract and receive lightning strikes, safely guiding the lightning current to the ground, thereby protecting buildings, power facilities, and personnel from direct lightning damage. Lightning arresters are typically installed on the tops of buildings, communication towers, and power facilities to protect buildings and power / communication equipment from the enormous destructive energy of direct lightning strikes.
[0019] like Figure 1-2 As shown, the detection device includes a drone body 1 and a support 11. The support 11 is connected to the bottom of the drone body 1 by welding or bolting, and is used to support the drone body 1 on the ground for easy take-off and landing. A connecting frame 2 is provided on the surface of the support 11. The connecting frame 2 is detachably connected to the support 11. The length of the connecting frame 2 can be selected according to the safe distance between the drone body 1 and the flash receiver body 12, the shooting focus position, and the shooting clarity. A positioning box 21 is provided at the end of the connecting frame 2 away from the support 11.
[0020] Please continue to refer to this. Figure 3As shown, the positioning box 21 contains a positioning block 211 that is adapted to connect with the lightning arrester body 12. The surface of the positioning block 211 has a slot 212 for the connecting post of the lightning arrester body 12 to engage, and an insulating tape 213 is provided on the outer surface of the inner wall of the slot 212. In this embodiment, the insulating tape 213 can be a polyvinyl chloride insulating tape or a rubber insulating tape, used to maintain insulation when in contact with the lightning arrester body 12, preventing current interference.
[0021] Specifically, by manipulating the drone body 1 to hover at an appropriate distance from the lightning receiver body 12, and inserting the positioning block 211 and the slot 212 into the outer surface of the lightning receiver body 12, when the lightning receiver body 12 is inserted into the slot 212, the connecting frame 2 will assist the drone body 1 in moving in a circle around the lightning receiver body 12 with the lightning receiver body 12 as the center. At this time, the connecting frame 2 can be driven to rotate around the lightning receiver body 12 by translating the drone body 1. Before this, the obstacle avoidance function of the drone should be temporarily turned off to avoid the flight control from obstructing the circular movement. The distance between the drone body 1 and the lightning receiver body 12 is maintained by the connecting frame 2, thereby effectively ensuring the consistency and integrity of capturing the surface defects of the lightning receiver body 12.
[0022] It is worth noting that in this embodiment, the connecting frame 2 can be set parallel to the support 11, facilitating the take-off and landing of the drone body 1. The support 11 can be placed stably on a flat ground, and the connecting frame 2 can be installed parallel to the support 11 and flush with the ground, or it can be installed at a certain downward angle. When the drone body 1 takes off and lands, it can first hover at a suitable height, and after the staff completes the disassembly and assembly of the connecting frame 2 and the support 11, the take-off and landing actions can be performed. In addition, the connecting frame 2 can adopt an angle-adjustable structure: during the take-off and landing phase, it can be adjusted to a horizontal state with the support 11, and during shooting operations, it can be adjusted to any tilt angle as needed, making it more flexible and controllable.
[0023] Combination Figure 3 and Figure 4As shown in this embodiment, the positioning box 21 is also provided with a positioning component for clamping the lightning arrester body 12. The positioning component includes an adjusting block 22 fixedly connected to the surface of the positioning block 211. The positioning block 211 is slidably disposed in the positioning box 21 via a slide rail or pulley. The surface of the positioning box 21 is provided with clamping members adapted to the adjusting block 22 and the lightning arrester body 12. The clamping members include two rotating shafts 221 rotatably connected to the surface of the positioning box 21. The two rotating shafts 221 are respectively disposed on both sides of the slot 212 on the surface of the positioning box 21. The ends of the rotating shafts 221 need to be higher than the surface of 211. Each rotating shaft 221 is fixedly connected to an active rod 222 adapted to the adjusting block 22 and a driven rod 223 adapted to the lightning arrester body 12. The two sides of the adjusting block 22 near the active rod 222 are set as inclined surfaces and abut against the active rod 222.
[0024] Specifically, during operation, the lateral movement of the drone body 1 can synchronously move the connecting frame 2 on the surface of the support 11, and the lateral movement direction is as follows: Figure 2 As the connecting frame 2 moves the entire positioning box 21 laterally along the X-axis arrow direction, the positioning block 211 in the positioning box 21 will be blocked by the lightning arrester body and move laterally away from the X-axis arrow direction. This causes the positioning block 211 and the positioning box 21 to slide relative to each other. The movement of the positioning block 211 will cause the adjusting block 22 on its surface to move laterally simultaneously, causing the inclined surfaces on both sides to push the active rod 222 to rotate around the rotating shaft 221. The rotation of the rotating shaft 221 will cause the driven rod 223 on one side to move synchronously towards one side of the lightning arrester body 12, and finally clamp the lightning arrester body 12 through the cooperation of the two driven rods 223, making it stably locked in the slot 212. Correspondingly, the force that causes the positioning block 211 to move laterally can be transmitted from the UAV body 1 towards the direction of the arrow. Figure 2 The lateral movement is achieved by moving the drone body 1 laterally, which in turn causes the connecting bracket 2 on the surface of the support 11 to move laterally. This, in turn, causes the positioning box 21 to move towards the lightning arrester body 12. Because the positioning block 211 is obstructed by the lightning arrester body 12, it will move in the opposite direction relative to the positioning box 21, causing the driven rod 223 to clamp the lightning arrester body 12. This eliminates the need for additional drive components and reduces weight. Furthermore, when detachment is required, the lateral movement is reversed (i.e., towards the direction shown by the arrow on the X-axis). Figure 2 (Move the drone body 1 away from the direction of the arrow on the X-axis as shown)
[0025] An insulating coating is provided on the side of the driven rod 223 that contacts the lightning arrester body 12. The insulating coating can be an epoxy resin coating, an organosilicon coating, etc., to improve the insulation effect and avoid the influence of current.
[0026] A torsion spring is provided at the rotatable connection between the rotating shaft 221 and the positioning box 21. The two ends of the torsion spring are fixedly connected to the rotating shaft 221 and the positioning box 21 respectively. With the torsion spring, the rotating shaft 221 can easily drive the driving rod 222 and the driven rod 223 back to the initial position, thereby pushing the adjusting block 22 and the positioning block 211 back to the initial position.
[0027] In this embodiment, the positioning box 21 and the positioning block 211 are provided with an auxiliary component at the bottom. The auxiliary component includes a striking plate 31 disposed at the bottom of the positioning box 21, a fixing ring 3 fixedly connected to the surface of the connecting frame 2, the striking plate 31 being hinged to the surface of the fixing ring 3, and the auxiliary component also includes a drive component for reciprocating the striking plate 31 to strike the lightning arrester body 12 to verify the looseness of defects.
[0028] Because the surface of the lightning receiver body 12 may have some minor defects such as looseness, micro-gaps, and shallow solder detachment, these defects are small in size, have no obvious color difference, and blend highly with the metal color, rust, scratches, and reflective textures of the lightning receiver, resulting in poor two-dimensional image recognition and making identification and detection difficult through image capture alone. However, when these minor defects and loose parts are subjected to vibration, they will experience micro-displacement and micro-warping, making previously difficult-to-detect defects more visible. Furthermore, by taking multiple shots and comparing multiple frames before and after the impact using the camera on the surface of the drone body 1, it is easier to detect these minor defects. Specifically, during operation, when the striking plate 31 collides with the surface of the lightning receiver body 12, the collision causes the lightning receiver body 12 to vibrate, thereby causing the loose defective parts on the surface of the lightning receiver body 12 to move. During this process, the loosened or displaced parts are more easily captured by the drone body 1, improving the detection efficiency of loose defects on the surface of the lightning arrester body 12.
[0029] The driving component includes a rotating wheel 32 rotatably connected to the positioning block 211. A square groove is provided on the inner wall of the slot 212. One side of the rotating wheel 32 extends into the square groove on the inner wall of the slot 212. When the lightning arrester body 12 is inserted into the slot 212, it will contact and abut against the rotating wheel 32. In this way, the rotation of the lightning arrester body 12 relative to the inner wall of the slot 212 will drive the rotating wheel 32 to rotate synchronously. A synchronous shaft 321 is fixedly connected to the bottom center of the rotating wheel 32. The synchronous shaft 321 passes through the bottom of the positioning block 211 and is fixedly connected to a lever 322 adapted to the striking plate 31. In normal conditions, the striking plate 31 directly abuts against the synchronizing shaft 321 and the lightning arrester body 12. When the synchronizing shaft 321 rotates, the dial 322 on its surface rotates around the synchronizing shaft 321, causing the striking plate 31, which was originally abutting against the synchronizing shaft 321, to be pushed outward by the rotating dial 322. The striking plate 31 will rotate in a direction away from the lightning arrester body 12. A torsion spring is provided at the hinge of the striking plate 31 and the fixed ring 3. The two ends of the torsion spring are fixedly connected to the striking plate 31 and the fixed ring 3 respectively. The torsion spring is used to stabilize the position of the striking plate 31. When the lever 322 pushes the striking plate 31 outward, the striking plate 31 rotates on the fixed ring 3 in a direction away from the lightning receiver body 12 and compresses the torsion spring. After the lever 322 rotates to the side away from the striking plate 31, the striking plate 31, which is no longer obstructed by the lever 322, will quickly return to the center under the action of the torsion spring's rebound force, move towards the direction close to the lightning receiver body 12, and hit the surface of the lightning receiver body 12, causing the lightning receiver body 12 to vibrate due to the impact. This makes it easier for the drone body 1 to photograph the changes in the surface of the lightning receiver body under vibration.
[0030] Specifically, by rotating the drone body 1 around the lightning arrester body 12, the lightning arrester body 12 rotates relative to the positioning block 211. When it is in the slot 212, the lightning arrester body 12 will drive the rotating wheel 32 in contact with it to rotate. The rotating wheel 32 drives the synchronous shaft 321 to rotate, and the toggle block 322 on its surface rotates in a circle, continuously pushing the striking plate 31 to rotate on the surface of the fixing ring 3. With the rebound of the torsion spring, the striking plate 31 continuously strikes the lightning arrester body 12, causing it to vibrate and making it easier to capture loose or defective parts.
[0031] Among them, the connecting frame 2 is made of materials including but not limited to plastic and carbon fiber, which effectively reduces the weight of the drone body 1 and the support 11, reduces the drone's operating power consumption and takeoff weight, and increases its range.
[0032] Among them, the drone body 1 can be selected from models such as DJI M210, DJI M300 and DJI Mavic 3 Pro.
[0033] Working principle: By manipulating the drone body 1 to move it, the lightning arrester body 12 is inserted into the slot 212, so that the drone body 1 faces the direction shown. Figure 2 As shown by the X-axis arrow, the positioning block 211 moves laterally in the opposite direction within the positioning box 21 due to the obstruction of the lightning arrester body 12. This causes the adjusting block 22 on the surface of the positioning block 211 to move laterally synchronously, pushing the active rod 222 around the rotating shaft 221. The rotation of the rotating shaft 221 causes the driven rod 223 on one side to move synchronously towards one side of the lightning arrester body 12. Finally, the two driven rods 223 clamp the lightning arrester body 12 together, making it stably locked in the slot 212. Correspondingly, the force that causes the positioning block 211 to move laterally can be applied by operating the drone body 1 towards the direction shown by the arrow. Figure 2 The movement is achieved by lateral movement along the X-axis, as shown by the arrow. When the receiver body 12 is inserted into the slot 212, the connecting frame 2 assists the drone body 1 in circular movement around the receiver body 12, with the receiver body 12 as the center. By manipulating the drone body 1 to hover at an appropriate distance from the receiver body 12 and engaging the positioning block 211 and the slot 212 on the outer surface of the receiver body 12, the connecting frame 2 can then rotate the drone body 1 around the receiver body 12 by translating it. Before this, the drone's obstacle avoidance function must be temporarily disabled to prevent the flight control from obstructing the circular movement. The connecting frame 2 maintains the distance between the drone body 1 and the receiver body 12, thereby effectively ensuring the consistency and integrity of capturing images of surface defects on the receiver body 12.
[0034] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A lightning protection detection device, comprising a drone body (1), a support (11), and a lightning arrester body (12), characterized in that, The support (11) is provided with a connecting frame (2) on its surface. The end of the connecting frame (2) away from the support (11) is provided with a positioning box (21). The positioning box (21) is provided with a positioning block (211) that is adapted to the lightning arrester body (12). The surface of the positioning block (211) is provided with a slot (212) for the lightning arrester body (12) to be inserted into, and the inner wall of the slot (212) is provided with an insulating strip (213). When the lightning arrester body (12) is inserted into the slot (212), the connecting frame (2) assists the UAV body (1) to move in a circle around the lightning arrester body (12) with the lightning arrester body (12) as the center.
2. The lightning protection detection device according to claim 1, characterized in that: The positioning block (211) slides within the positioning box (21) and also includes a positioning component for clamping the lightning arrester body (12). The positioning component includes an adjustment block (22) fixedly connected to the surface of the positioning block (211). The surface of the positioning box (21) is provided with a plurality of clamping members that are adapted to the adjustment block (22) and the lightning arrester body (12) respectively.
3. The lightning protection detection device according to claim 2, characterized in that: The clamping component includes two rotating shafts (221) rotatably connected to the surface of the positioning box (21). The rotating shafts (221) are respectively fixedly connected to an active rod (222) adapted to the adjusting block (22) and a driven rod (223) adapted to the lightning arrester body (12). The two sides of the adjusting block (22) are set as inclined surfaces and abut against the active rod (222).
4. The lightning protection detection device according to claim 3, characterized in that: An insulating coating is provided on the side of the driven rod (223) that contacts the lightning arrester body (12).
5. A lightning protection detection device according to claim 3, characterized in that: A torsion spring is provided at the rotatable connection between the rotating shaft (221) and the positioning box (21).
6. A lightning protection detection device according to any one of claims 1-5, characterized in that: It also includes an auxiliary component, which is set at the bottom of the positioning box (21). The auxiliary component includes a striking plate (31) set at the bottom of the positioning box (21). A fixing ring (3) is fixedly connected to the surface of the connecting frame (2). The striking plate (31) is hinged to the surface of the fixing ring (3). It also includes a drive component for making the striking plate (31) reciprocate to strike the lightning arrester body (12) to verify the looseness of defects.
7. A lightning protection detection device according to claim 6, characterized in that: The drive assembly includes a rotating wheel (32) rotatably connected to the positioning block (211). One side of the rotating wheel (32) extends into the slot (212), and a synchronous shaft (321) is fixedly connected to the center of the bottom of the rotating wheel (32). The synchronous shaft (321) passes through the bottom of the positioning block (211) and is fixedly connected to a paddle (322) adapted to the striking plate (31). A torsion spring is provided at the hinge between the striking plate (31) and the fixing ring (3).
8. The lightning protection detection device according to claim 1, characterized in that: The connecting frame (2) is made of plastic or carbon fiber.