Aerial visualisation device for power line inspection

CN224645166UActive Publication Date: 2026-08-18MAINTENANCE BRANCH OF STATE GRID FUJIAN ELECTRIC POWER
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Patent Information

Application Number
CN202522011274.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-18
Publication Date
2026-08-18
Estimated Expiration
2035-09-18

AI Technical Summary

Technical Problem

[0003]传统的输电线路巡检主要依赖人工方式,早期巡检多通过地面人员使用望远镜观察或登杆检查,效率低且存在视角盲区,难以精准识别绝缘子表面的细微缺陷(如裂纹、伞裙破损)或局部污秽堆积情况,随着技术发展,部分巡检采用小型无人机辅助,但普通无人机仅具备基础拍摄功能,且传统清洗需搭建脚手架或使用高空作业车,由人工携带清洗设备攀爬至绝缘子附近操作,此过程不仅耗时耗力、成本高昂,且作业人员需近距离接触高压输电线路,存在触电、坠落等重大安全风险,故此,我们推出一种新的输电线路巡检的飞行可视化装置

Benefits of technology

[0018]1、当无人机飞行巡检到输电线路上的绝缘子处时,通过将喷头的角度调整到对准需要清洗的绝缘子,通过水泵将储液盒内的清洗液经喷雾管通过喷头喷出对绝缘子进行清洗,该装置将巡检与清洗功能一体化集成,无人机在巡检过程中发现绝缘子污秽后可即时开展清洗作业,相比传统人工清洗需搭建脚手架、使用高空作业车等方式,无人机操作无需人员近距离接触高压输电线路,避免人工高空作业及触电、坠落等安全风险,提升作业安全性;

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Abstract

The utility model relates to transmission line inspection technical field especially is a kind of transmission line inspection flight visualization device, including unmanned aerial vehicle main body, unmanned aerial vehicle main body outside four corners are fixedly installed with rotor, the lower end left part and lower end right part of unmanned aerial vehicle main body are fixedly connected with support frame, the inboard of two support frames is fixedly connected with cleaning mechanism, the lower end middle part of unmanned aerial vehicle main body is fixedly connected with mounting plate, the lower end middle part of mounting plate is fixedly connected with fixed block.The utility model relates to a kind of transmission line inspection flight visualization device, the device integrates the integration of inspection and cleaning function, unmanned aerial vehicle can carry out cleaning operation immediately after finding insulator contamination in the process of inspection, compared with the mode that traditional manual cleaning needs to build scaffold, uses aerial work truck, unmanned aerial vehicle operation does not need personnel close contact high-voltage transmission line, avoids artificial high-altitude operation and electric shock, falling and other safety risks, improves operation safety.
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Description

Technical Field

[0001] This utility model relates to the field of power transmission line inspection technology, and in particular to a flight visualization device for power transmission line inspection. Background Technology

[0002] Transmission lines are a core component of the power system, and their safe and stable operation is directly related to the reliability of power supply. Insulators, as key components in transmission lines that support conductors and isolate high voltage from ground potential, are exposed to the outdoor environment for a long time, and their surfaces are prone to accumulating dirt (such as dust, salt spray, bird droppings, etc.). The accumulation of dirt not only reduces the insulation performance of insulators, but may also cause flashover accidents, seriously affecting the safety of the power grid. Therefore, regular inspection and cleaning of transmission line insulators is an important part of ensuring the stable operation of the power system.

[0003] Traditional power transmission line inspections mainly rely on manual methods. Early inspections were mostly conducted by ground personnel using binoculars or climbing poles, which was inefficient and had blind spots, making it difficult to accurately identify minute defects (such as cracks or damaged skirts) or localized dirt accumulation on the insulator surface. With technological advancements, some inspections have adopted small drones for assistance. However, ordinary drones only have basic shooting functions, and traditional cleaning requires the construction of scaffolding or the use of aerial work platforms, with personnel carrying cleaning equipment climbing to the vicinity of the insulators to operate. This process is not only time-consuming, labor-intensive, and costly, but also requires workers to be in close contact with high-voltage power transmission lines, posing significant safety risks such as electric shock and falls. Therefore, we have launched a new flying visualization device for power transmission line inspection. Utility Model Content

[0004] The main objective of this invention is to provide a flight visualization device for power transmission line inspection, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A flight visualization device for power transmission line inspection includes a drone body. Rotors are fixedly installed at the four corners of the drone body. Support frames are fixedly connected to the lower left and lower right parts of the drone body. Cleaning mechanisms are fixedly connected to the inner sides of the two support frames. A mounting plate is fixedly connected to the lower middle part of the drone body. A fixing block is fixedly connected to the lower middle part of the mounting plate. A drive box is fixedly connected to the lower end of the fixing block. A micro-rotation mechanism is provided inside the drive box.

[0007] Preferably, the cleaning mechanism includes a liquid storage box and a water pump. A fixing plate is fixedly connected to the left and right sides of the outer surface of the liquid storage box. An inlet pipe is fixedly connected to the upper front middle part of the outer surface of the liquid storage box. A sealing cap is provided at the front end of the inlet pipe. A spray pipe is fixedly installed at the output end of the water pump. A nozzle is fixedly connected to the front end of the spray pipe.

[0008] Preferably, the liquid storage box is located below the micro-rotation mechanism, and the water pump is fixedly installed on the front wall inside the liquid storage box.

[0009] By adopting the above technical solution, placing the liquid storage box below the micro-rotation mechanism can avoid the liquid storage box obstructing the field of view of the camera connected to the micro-rotation mechanism, ensuring that the camera can clearly capture the appearance and dirt distribution of the insulator, and providing unobstructed visualization support for accurate positioning of subsequent cleaning operations.

[0010] Preferably, the upper ends of both fixing plates are fixedly connected to the main body of the drone, and the nozzle is located in front of the liquid storage box.

[0011] By adopting the above technical solution, the upper ends of the two fixed plates are fixedly connected to the main body of the drone, and the core components of the cleaning mechanism such as the liquid storage box and water pump can be stably assembled on the drone.

[0012] Preferably, the micro-rotation mechanism includes a motor, a rotating rod is fixedly installed at the output end of the motor, a driving gear is fixedly connected to the lower end of the rotating rod, a driven gear is meshed with the left side of the outer surface of the driving gear, a connecting column is fixedly connected to the lower end of the driven gear, and a camera is fixedly installed at the lower end of the connecting column.

[0013] Preferably, the motor is fixedly mounted on the upper end of the drive box, the rotating rod is movably connected to the upper wall inside the drive box, and both the driving gear and the driven gear are located inside the drive box.

[0014] By adopting the above technical solution: the motor is installed above the drive box, which facilitates motor maintenance and heat dissipation; the driving gear and driven gear are located inside the drive box, which can protect the gears.

[0015] Preferably, the upper end of the driven gear is movably connected to the upper wall of the drive box via a bearing, the connecting column is movably connected to the lower wall of the drive box, and the camera is located below the drive box.

[0016] By adopting the above technical solution, the connecting column is movably connected to the lower wall of the drive box, which can play a radial limiting role for the connecting column, preventing radial offset or shaking when the connecting column drives the camera to rotate, and ensuring stable shooting during the camera rotation process.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the drone flies over the insulators on the power transmission line, the nozzle angle is adjusted to be aimed at the insulator that needs to be cleaned. The water pump sprays the cleaning liquid in the storage box through the spray pipe and nozzle to clean the insulator. This device integrates inspection and cleaning functions. The drone can start cleaning operations immediately after it finds dirt on the insulator during the inspection. Compared with traditional manual cleaning, which requires the construction of scaffolding and the use of aerial work vehicles, drone operation does not require personnel to come into close contact with high-voltage power transmission lines, avoiding the safety risks of manual high-altitude work, electric shock, and falls, and improving the safety of the operation.

[0019] 2. Gear meshing transmission has high-precision transmission characteristics. The precise meshing of the teeth of the driving gear and the driven gear can avoid transmission errors such as slippage and free rotation. Combined with the stable output of the motor, it can achieve fine and precise adjustment of the camera lens angle, ensuring that the lens can accurately aim at different parts of the transmission line insulator (such as the gap between the insulator skirts, key areas of surface dirt, etc.), avoiding blurry monitoring images or incomplete target capture due to angle deviation. This ensures clear observation of the appearance defects (such as cracks and damage) and the degree of dirt accumulation of the insulator during inspection, providing reliable visual support for accurate positioning of subsequent cleaning operations. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a flight visualization device for power transmission line inspection according to the present invention.

[0021] Figure 2 This is a schematic diagram of the planar structure of a flight visualization device for power transmission line inspection according to the present invention.

[0022] Figure 3 This is a schematic diagram of the overall structure of the cleaning mechanism of a flight visualization device for power transmission line inspection according to this utility model.

[0023] Figure 4 This is a schematic diagram of the overall structure of the micro-rotation mechanism of a flight visualization device for power transmission line inspection according to this utility model.

[0024] In the diagram: 1. Drone body; 2. Rotor; 3. Support frame; 4. Cleaning mechanism; 5. Mounting plate; 6. Fixing block; 7. Drive box; 8. Micro-rotation mechanism; 41. Liquid storage box; 42. Water pump; 43. Fixing plate; 44. Liquid inlet pipe; 45. Sealing cap; 46. Spray pipe; 47. Nozzle; 81. Motor; 82. Rotating rod; 83. Drive gear; 84. Driven gear; 85. Connecting column; 86. Camera. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figure 1-4 This utility model provides a technical solution:

[0029] A flight visualization device for power transmission line inspection includes a drone body 1, with rotors 2 fixedly installed at all four corners of the drone body 1. Support frames 3 are fixedly connected to the lower left and lower right parts of the drone body 1. Cleaning mechanisms 4 are fixedly connected to the inner sides of the two support frames 3. A mounting plate 5 is fixedly connected to the lower middle part of the drone body 1. A fixing block 6 is fixedly connected to the lower middle part of the mounting plate 5. A drive box 7 is fixedly connected to the lower end of the fixing block 6. A micro-rotation mechanism 8 is provided inside the drive box 7.

[0030] In this embodiment, the cleaning mechanism 4 includes a liquid storage box 41 and a water pump 42. Fixing plates 43 are fixedly connected to the left and right sides of the outer surface of the liquid storage box 41. An inlet pipe 44 is fixedly connected to the upper front middle part of the outer surface of the liquid storage box 41. A sealing cap 45 is provided at the front end of the inlet pipe 44. A spray pipe 46 is fixedly installed at the output end of the water pump 42. A nozzle 47 is fixedly connected to the front end of the spray pipe 46. The liquid storage box 41 is located below the micro-rotation mechanism 8. The water pump 42 is fixedly installed on the inner front wall of the liquid storage box 41. The upper ends of the two fixing plates 43 are fixedly connected to the main body 1 of the drone. The nozzle 47 is located in front of the liquid storage box 41.

[0031] The above solution involves opening the sealing cap 45, placing the cleaning fluid into the storage box 41 through the inlet pipe 44, and then closing the sealing cap 45. The drone body 1 and the onboard camera 86 can then perform inspection operations on the power transmission line. When the drone reaches the insulator on the power transmission line, the nozzle 47 is adjusted to be aimed at the insulator that needs cleaning. The cleaning fluid in the storage box 41 is then sprayed out through the spray pipe 46 and the nozzle 47 by the water pump 42 to clean the insulator. This device integrates inspection and cleaning functions. When the drone finds dirt on the insulator during the inspection, it can immediately carry out cleaning operations. Compared with traditional manual cleaning, which requires the construction of scaffolding and the use of aerial work platforms, drone operation does not require personnel to come into close contact with high-voltage power transmission lines, avoiding the safety risks of manual high-altitude operations, electric shock, and falls, thus improving operational safety.

[0032] In this embodiment, the micro-rotation mechanism 8 includes a motor 81. A rotating rod 82 is fixedly installed at the output end of the motor 81. A drive gear 83 is fixedly connected to the lower end of the rotating rod 82. A driven gear 84 is meshed with the left side of the outer surface of the drive gear 83. A connecting column 85 is fixedly connected to the lower end of the driven gear 84. A camera 86 is fixedly installed at the lower end of the connecting column 85. The motor 81 is fixedly installed on the upper end of the drive box 7. The rotating rod 82 is movably connected to the upper wall of the drive box 7. The drive gear 83 and the driven gear 84 are both located inside the drive box 7. The upper end of the driven gear 84 is movably connected to the upper wall of the drive box 7 through a bearing. The connecting column 85 is movably connected to the lower wall of the drive box 7. The camera 86 is located below the drive box 7.

[0033] The above solution involves starting motor 81, which drives rotating rod 82 to rotate. Rotating rod 82 drives driving gear 83 to rotate, which in turn drives driven gear 84 to rotate. Driven gear 84, through connecting column 85, rotates camera 86 to fine-tune the angle, ensuring that the lens can accurately target different parts of the transmission line insulator (such as the gap between insulator skirts, areas with heavy surface contamination, etc.). This avoids blurry monitoring images or incomplete target capture due to angle deviation, thus ensuring clear observation of insulator appearance defects (such as cracks and damage) and the degree of contamination accumulation during inspections, providing reliable visual support for accurate positioning in subsequent cleaning operations.

[0034] It should be noted that this utility model is a flight visualization device for power transmission line inspection. During use, the sealing cover 45 is opened, and cleaning fluid is injected into the storage box 41 through the inlet pipe 44. The sealing cover 45 is then closed tightly. The drone body 1, equipped with a camera 86, can perform power transmission line inspection tasks. When flying to the insulator area of ​​the power transmission line, the motor 81 is started. The motor 81 drives the rotating rod 82 to rotate, which in turn drives the drive gear 83 to rotate. The drive gear 83 further drives the driven gear 84 to rotate. The driven gear 84, through the connecting column 85, causes the camera 86 to rotate for fine-tuning of the angle, ensuring that the lens is accurately aimed at different parts of the insulator (such as the gaps between the insulator skirts or areas with heavy surface dirt), avoiding blurry monitoring images due to angle deviation. The device can capture incomplete targets, thus ensuring clear observation of insulator appearance defects (such as cracks and damage) and the degree of dirt accumulation. This provides reliable visual support for accurate positioning of subsequent cleaning operations. When carrying out cleaning operations, the nozzle 47 is adjusted to be aimed at the insulator to be cleaned, and the water pump 42 is started to spray the cleaning liquid in the liquid storage box 41 through the spray pipe 46 from the nozzle 47 to clean the insulator. This device integrates inspection and cleaning functions. After the drone finds dirt on the insulator during the inspection, it can immediately carry out cleaning operations. Compared with traditional manual cleaning, which requires the construction of scaffolding and the use of aerial work platforms, drone operation does not require personnel to come into close contact with high-voltage transmission lines, avoiding the safety risks of manual high-altitude work, electric shock, and falls, and improving the safety of the operation.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flight visualization device for power transmission line inspection, comprising a drone body (1), characterized in that: Rotors (2) are fixedly installed at the four corners of the drone body (1). Support frames (3) are fixedly connected to the lower left and lower right parts of the drone body (1). A cleaning mechanism (4) is fixedly connected to the inner side of the two support frames (3). An installation plate (5) is fixedly connected to the lower middle part of the drone body (1). A fixing block (6) is fixedly connected to the lower middle part of the installation plate (5). A drive box (7) is fixedly connected to the lower end of the fixing block (6). A micro-rotation mechanism (8) is provided inside the drive box (7). The cleaning mechanism (4) includes a liquid storage box (41) and a water pump (42). The left and right sides of the outer surface of the liquid storage box (41) are fixedly connected to a fixing plate (43). The upper middle part of the outer surface of the liquid storage box (41) is fixedly connected to an inlet pipe (44). A sealing cap (45) is provided at the front end of the inlet pipe (44). A spray pipe (46) is fixedly installed at the output end of the water pump (42). A nozzle (47) is fixedly connected at the front end of the spray pipe (46).

2. The aerial visualization device for power transmission line inspection according to claim 1, characterized in that: The liquid storage box (41) is located below the micro-rotation mechanism (8), and the water pump (42) is fixedly installed on the front wall inside the liquid storage box (41).

3. The aerial visualization device for power transmission line inspection according to claim 1, characterized in that: The upper ends of the two fixing plates (43) are fixedly connected to the main body (1) of the drone, and the nozzle (47) is located in front of the liquid storage box (41).

4. The aerial visualization device for power transmission line inspection according to claim 1, characterized in that: The micro-rotation mechanism (8) includes a motor (81), a rotating rod (82) is fixedly installed at the output end of the motor (81), a drive gear (83) is fixedly connected to the lower end of the rotating rod (82), a driven gear (84) is meshed on the left side of the outer surface of the drive gear (83), a connecting column (85) is fixedly connected to the lower end of the driven gear (84), and a camera (86) is fixedly installed at the lower end of the connecting column (85).

5. The aerial visualization device for power transmission line inspection according to claim 4, characterized in that: The motor (81) is fixedly installed on the upper end of the drive box (7), the rotating rod (82) is movably connected to the upper wall inside the drive box (7), and the driving gear (83) and the driven gear (84) are both located inside the drive box (7).

6. The aerial visualization device for power transmission line inspection according to claim 4, characterized in that: The upper end of the driven gear (84) is movably connected to the upper inner wall of the drive box (7) via a bearing, the connecting column (85) is movably connected to the lower inner wall of the drive box (7), and the camera (86) is located below the drive box (7).