Electricity testing device and method for airborne non-contact overhead line

Abstract

The invention relates to an airborne non-contact overhead line electricity testing device and method, and relates to the technical field of electricity testing equipment, the airborne non-contact overhead line electricity testing device comprises an electricity testing main body, an adjusting rod and a fixing rod fixed on the periphery of the electricity testing main body, and the end part, far away from the electricity testing main body, of the fixing rod is provided with a fixing hole for the adjusting rod to be coaxially inserted and slide; an adjusting through hole is formed in the periphery of the fixing rod, a plurality of adjusting screw holes are evenly formed in the periphery of the adjusting rod in the length direction of the adjusting rod, an adjusting bolt penetrating through the adjusting through hole and then screwed into the adjusting screw hole is arranged outside the fixing rod, and a connecting piece installed with the unmanned aerial vehicle is installed at the end, away from the fixing rod, of the adjusting rod. According to the invention, the fixed rod and the adjusting rod are in sliding fit, and the adjusting bolt fixes the adjusting screw holes at different positions, so that the live part verification requirements of lines of different voltage grades can be rapidly met, the insulating rod does not need to be frequently replaced, and the live part verification efficiency is remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of electrical testing equipment, and in particular to an airborne non-contact electrical testing device for overhead lines. Background Art

[0002] With the continued expansion of power systems and the increasing scale of power grids, the importance of power inspection and operation and maintenance has become increasingly prominent. Traditional manual contact testing has long dominated power systems. However, its drawbacks have gradually become apparent with the development of power systems. In complex scenarios such as ultra-high voltage transmission lines, manual testing requires operators to climb towers. This is not only time-consuming and inefficient, but also exposes operators to serious safety risks such as falls and electric shock.

[0003] Among related technologies, a common type of drone-mounted electrical testing equipment has attracted considerable attention. This equipment primarily consists of a drone, a mounting platform, an insulating rod, and an electrical testing device. The mounting platform is rotatably mounted on the underside of the drone, while the insulating rod is fixed to the vertical side of the mounting platform. The electrical testing device is mounted on the end of the insulating rod away from the mounting platform. The electrical testing device integrates sensors, a signal processing module, and a human-machine interface module. A servo motor is also mounted on the underside of the drone to drive the mounting platform, which in turn drives the synchronous rotation of the insulating rod and the electrical testing device. In practical applications, the drone can drive the entire electrical testing equipment up and down, enabling remote electrical testing.

[0004] However, in practice, higher voltages increase the electric field strength and the impact range. To ensure the safety of both testers and equipment, a greater safety distance must be maintained. For example, when testing 10kV lines, a shorter insulating rod can meet safety requirements; however, testing 500kV ultra-high voltage lines requires a longer insulating rod. This results in different lengths of insulating rods being used for different lines in actual testing. However, the existing equipment requires a cumbersome process for replacing insulating rods of different lengths, consuming significant time and effort, significantly impacting overall testing efficiency, leaving room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide an airborne non-contact overhead line electrical testing device and method to solve the problem of long time consumption and low efficiency when replacing insulating rods of different lengths in the above-mentioned related technologies.

[0006] In a first aspect, the present application provides an airborne non-contact overhead line electrical testing device that adopts the following technical solution: An airborne non-contact electrical testing device for overhead lines comprises an electrical testing body, an adjusting rod, and a fixing rod fixed to the outer periphery of the electrical testing body, wherein the end of the fixing rod away from the electrical testing body is provided with a fixing hole for the adjusting rod to be coaxially inserted and slid; an adjusting through-hole is provided on the outer periphery of the fixing rod, and a plurality of adjusting screw holes are evenly provided on the outer periphery of the adjusting rod along its own length direction; an adjusting bolt is provided on the outside of the fixing rod, which passes through the adjusting through-hole and is screwed into the adjusting screw hole; and a connecting piece for mounting on a drone is installed on the end of the adjusting rod away from the fixing rod.

[0007] By adopting this technical solution, utilizing the sliding fit of the fixed rod and the adjustment rod, and the fixing of the adjustment bolts to the adjustment screw holes in different positions, the device can quickly adapt to the electrical testing needs of lines with different voltage levels, eliminating the need for frequent replacement of insulating rods and significantly improving electrical testing efficiency. This design also enhances the versatility and flexibility of the device, reduces operational complexity and costs, and provides a more convenient and efficient solution for power inspection and operation and maintenance.

[0008] Optionally, the adjusting bolt is a first butterfly bolt.

[0009] By adopting this technical solution, the butterfly-shaped head design of the first butterfly bolt allows workers to tighten or loosen it manually without the need for additional tools. This allows for quick and flexible length adjustment when the distance between the electrical test body and the drone needs to be adjusted. This not only simplifies the operation process, but also reduces dependence on operating tools, improving the flexibility and responsiveness of on-site operations. It is particularly suitable for electrical testing tasks that require frequent adjustments or in emergency situations, ensuring the smooth progress of electrical testing work.

[0010] Optionally, the connecting member includes two connecting shells relatively mounted on the outer periphery of the end of the adjusting rod away from the fixed rod, and a connecting through hole is formed on the side of the connecting shell away from the adjusting rod.

[0011] By adopting this technical solution, the design of the adapter shell allows the device to be securely and quickly installed on the drone. This is achieved by simply inserting bolts through the adapter holes and screwing them into corresponding screw holes on the underside of the drone, simplifying the installation process. This structure also facilitates disassembly and maintenance of the device, improving work efficiency.

[0012] Optionally, the end edges of the adjusting rod are rotatably connected to the two connecting shells, and the two connecting shells are provided with a protective cavity for the electrical test body to be placed in; after the adjusting rod is fully inserted into the fixing hole, the two connecting shells can be rotated back to back and sleeved on the outside of the electrical test body; a locking piece is provided on the outside of the electrical test body, and the locking piece is used to fix the two connecting shells when protecting the electrical test body.

[0013] By adopting this technical solution, when not in operation (such as during factory transportation), the connector shell tightly wraps around the electrical tester, protecting it from external impact or damage, thereby extending the device's service life. This design also reduces the device's overall size, making it easier to carry and transport, reducing logistics costs. When in operation, the device can be quickly installed on a drone simply by releasing the locking member and rotating the connector shell in the opposite direction, improving work efficiency and flexibility, and greatly facilitating power inspection and maintenance work.

[0014] Optionally, guide grooves are provided on the sides that are away from each other when the two connecting shells are arranged on the outside of the test body, and the locking member includes a locking shaft that is rotatable and vertically installed on the outside of the test body, and a locking rod is fixed to the outer periphery of the end of the locking shaft away from the test body; the locking rod can rotate with the locking shaft to a state parallel and perpendicular to the length direction of the guide groove, and when the locking rod is in a parallel state, it can pass through the guide groove and extend to the outside of the connecting shell, and when the locking rod is outside the connecting shell and rotated to a vertical state, it can lock the connecting shell.

[0015] By adopting this technical solution, the locking rod can flexibly rotate with the locking shaft. When it is rotated to be parallel to the guide slot, it can easily pass through the guide slot and extend to the outside of the connection shell. When it is rotated to a vertical position, it can effectively lock the connection shell to prevent it from accidentally opening, thereby ensuring the safety of the electrical inspection body during transportation and storage. This design not only enhances the protection performance of the device, but also simplifies the operation process, improves the convenience and reliability of use, and provides a strong guarantee for power inspection work.

[0016] Optionally, an elastic clip is provided on the side of the locking rod close to the electrical test body, and a positioning groove for the elastic clip to be inserted into is provided on the outer surface of the connecting shell when the connecting shell is in a state of protecting the electrical test body.

[0017] By adopting the above technical solution, an elastic connector is provided on the locking rod, and a positioning groove is provided on the outer side of the connecting shell when it is in the protective state. This significantly enhances the locking stability of the connecting shell to the electrical test body. When the locking rod is rotated to a vertical position, the elastic connector automatically snaps into the positioning groove, forming a reliable mechanical lock, effectively preventing the connecting shell from loosening or opening due to vibration during transportation or storage. This design not only improves the overall protection performance of the device, but also enhances the safety and convenience of operation, ensuring that the electrical test body is properly protected when not in operation, and extending the service life of the device.

[0018] Optionally, a movable rod with a length perpendicular to the axis of the fixed rod is slidably provided on the two opposite outer sides of the test body, and the sliding direction of the movable rod is parallel to the axis of the fixed rod; a cleaning cotton is fixed on the side of the movable rod close to the test body.

[0019] By adopting this technical solution, workers can manually slide the movable rod to move the cleaning cotton along the outer surface of the electrical detection body, effectively removing dust, dirt, and other impurities, ensuring the surface of the electrical detection body is clean, thereby maintaining its detection sensitivity and accuracy. This design not only simplifies the cleaning process, but also avoids measurement errors caused by impurity accumulation, improves the reliability and efficiency of electrical detection work, and provides a more convenient and efficient maintenance method for power inspection and operation and maintenance.

[0020] Optionally, the side edge of the test body close to the fixed rod is a guide arc surface, and the two ends of the movable rod are vertically fixed with extended protrusions facing the test body, and the sides of the two extended protrusions close to each other are fixed with guide protrusions; the two opposite outer sides of the test body are provided with guide grooves for the guide protrusions to be inserted and rotated; the moving rod can rotate along the guide arc surface synchronously with the rotation of the guide protrusions, and when the locking rod is rotated to a position perpendicular to the length direction of the guide groove, the locking rod can rotate with the moving rod to a state of abutment with the outer peripheral surface of the fixed rod; the outer periphery of the fixed rod is provided with a fastener for locking the locking rod in abutment with the outer periphery of the fixed rod.

[0021] By adopting the above technical solution, the guiding arc surface of the electrical test body cooperates with the guide protrusion and guide groove of the mobile rod, realizing the flexible sliding and rotation of the mobile rod during the cleaning process, enhancing the comprehensiveness and convenience of cleaning. At the same time, after rotating to a vertical state, the locking rod can rotate synchronously with the mobile rod until it abuts against the outer peripheral surface of the fixed rod and is locked with a fastener. This design not only strengthens the connection stability between the electrical test body and the fixed rod, but also ensures the overall firmness of the device during the electrical test process, improving the safety and reliability of the electrical test work, and providing a more stable and efficient electrical test device for power inspection.

[0022] Optionally, a fastening through hole is provided on the locking rod, a fastening screw hole is provided on the outer periphery of the fixing rod, the fastener is a fastening bolt that passes through the fastening through hole and is screwed into the fastening screw hole, and the fastening bolt is a second butterfly bolt.

[0023] By adopting the above technical solution, a fastening bolt is inserted through the fastening hole on the locking rod and screwed into the fastening screw hole on the fixing rod, thus achieving a secure connection between the locking rod and the fixing rod, further enhancing the overall structural stability of the electrical testing device. In particular, the use of a second butterfly bolt as a fastener, with its butterfly-shaped head design, facilitates manual operation, allowing for quick tightening or loosening without the need for additional tools, greatly improving the convenience and efficiency of on-site operations.

[0024] In a second aspect, the present application provides an airborne non-contact overhead line electrical testing method using the following technical solutions: A method for testing electricity for an airborne non-contact overhead line, using the above-mentioned airborne non-contact overhead line testing device, comprises the following steps: Step 1: In the initial transport state, the adjustment rod is fully inserted into the fixing hole, the two connecting shells are rotated back to back and sleeved on the outside of the electrical test body, and the two connecting shells in this state are locked by the locking piece; Step 2: Install the application state. Release the lock of the connecting shell with the locking piece, then rotate the connecting shell in the opposite direction and fix it on the drone. Then adjust the overall length of the fixing rod and the adjustment rod. Step 3: Drive the movable rod to slide and use cleaning cotton to clean the outside of the electrical test body; after cleaning, rotate the movable rod along the guide arc surface, and finally use fasteners to fix the locking rod to the outer periphery of the fixed rod.

[0025] By adopting this technical solution, during initial transportation, the connector housing tightly wraps the electrical detector body, ensuring safety and protection. During installation, the device can be quickly deployed by releasing the locking member, rotating the connector housing in the opposite direction, and securing it to the drone. A mobile rod and cleaning cotton are used to clean the electrical detector body to ensure detection accuracy. Finally, a fastener secures the locking rod to enhance device stability. This method, with its clear steps and simple operation, effectively improves the efficiency and safety of electrical inspections, providing reliable technical support for power inspections.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. This electrical testing device utilizes the sliding fit of the fixed and adjustable rods, and the securing of the adjustable bolts to the various adjustment screw holes. This allows it to quickly adapt to the electrical testing needs of lines with varying voltage levels, eliminating the need for frequent replacement of insulating rods and significantly improving testing efficiency. This design also enhances the device's versatility and flexibility, reduces operational complexity and costs, and provides a more convenient and efficient solution for power inspections and maintenance.

[0027] 2. During initial transportation, the connector shell tightly wraps around the tester to ensure safety. During installation, the device is quickly deployed by releasing the locking member, rotating the connector shell in the opposite direction, and securing it to the drone. The tester is cleaned using a mobile rod and cleaning cotton to ensure detection accuracy. Finally, the locking rod is secured with fasteners to enhance device stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application; Figure 2 This is a partial cross-sectional structural diagram of the installation and cooperation of the fixing rod and the adjusting rod in Example 1 of the present application; Figure 3 This is a schematic diagram of the overall structure of Example 2 of the present application; Figure 4 This is a structural diagram of Example 2 of the present application, showing that the connecting shell protects the electrical detection body; Figure 5 This is a partial structural diagram of the installation and cooperation of the locking member in Example 2 of the present application; Figure 6 This is a partial cross-sectional structural diagram of the second embodiment of the present application showing the installation and cooperation of the locking member; Figure 7 yes Figure 6 A magnified schematic diagram of part A; Figure 8 It is a schematic diagram of the partial cross-sectional structure of the fastener installation cooperation embodied in Example 2 of the present application.

[0030] In the figure, 1. the electrical test body; 11. the guide slide groove; 12. the guide arc surface; 2. the fixing rod; 21. the fixing hole; 22. the adjusting through hole; 23. the fastening screw hole; 3. the adjusting rod; 31. the adjusting screw hole; 4. the adjusting bolt; 41. the first butterfly bolt; 5. the connecting piece; 51. the connecting plate; 52. the connecting shell; 521. the connecting through hole; 522. the protective cavity; 523. the guide through groove; 524. the positioning groove; 6. the locking piece; 61. the locking shaft; 62. the locking rod; 621. the placement groove; 622. the fastening through hole; 63. the elastic clamping piece; 631. the compression spring; 632. the arc-shaped protrusion; 64. the moving rod; 641. the extension protrusion; 642. the guide protrusion; 65. the cleaning cotton; 7. the fastener; 71. the fastening bolt. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0032] Example 1: Reference Figure 1 and Figure 2 An airborne non-contact electrical test device for overhead lines includes an electrical test body 1, an adjusting rod 3, and a fixing rod 2 fixed to the outer periphery of the electrical test body 1. The fixing rod 2 and the adjusting rod 3 are both made of insulating materials, and the fixing rod 2 has a fixing hole 21 at the end away from the electrical test body 1 for the adjusting rod 3 to be coaxially inserted and slidably formed therein. An adjustment through-hole 22 is provided on the outer circumference of the fixing rod 2, and a plurality of adjustment screw holes 31 are uniformly provided on the outer circumference of the adjusting rod 3 along its length. An adjustment bolt 4 is provided on the outside of the fixing rod 2, which passes through the adjustment through-hole 22 and is screwed into the adjustment screw hole 31. The adjustment bolt 4 is a first butterfly bolt 41, and a connector 5 mounted on the lower part of the drone is installed at the end of the adjusting rod 3 away from the fixing rod 2. The connector 5 is a connector plate 51 fixed to the end of the adjusting rod 3, and the connector plate 51 has four through-holes. When it is necessary to adjust the distance between the electrical test body 1 and the drone, the adjusting bolt 4 can be unscrewed out of the adjusting screw hole 31 first, and then the depth of the adjusting rod 3 inserted into the fixing hole 21 can be adjusted so that the adjusting through hole 22 coincides with the adjusting screw hole 31 in the new position, and finally the adjusting bolt 4 is screwed into the corresponding adjusting screw hole 31 to adjust the overall length of the adjusting rod 3 and the fixing rod 2.

[0033] Reference Figure 1 The electrical testing body 1 includes a shell (not shown in the figure), in which a PCB board, a sensor, a signal processing module, and a human-computer interaction module (not shown in the figure) are installed inside the shell. The sensor is made of plastic materials such as photosensitive resin and is integrated with the PCB board to optimize the structural characteristics of the equipment and reduce the weight of the equipment.

[0034] The signal processing module includes IV conversion circuit, filtering circuit, amplifier circuit, phase-sensitive detection circuit, etc., which can optimize the filtering circuit and structural design and reduce hardware mass; it adopts DC / DC module and voltage regulator module for power supply, and uses shielded twisted pair as the transmission line of analog signal to avoid possible static electricity and electromagnetic interference.

[0035] The implementation principle of the embodiment of this application is: In the installation application scenario, first unscrew the adjusting bolt 4 to adjust the distance between the electrical test body 1 and the drone, and then tighten it; then use the bolt to pass through the through hole on the connecting plate 51 and screw it into the corresponding screw hole of the drone to complete the installation of the electrical test body 1 and the drone.

[0036] Example 2: Reference Figure 3 The difference between the embodiment of the present application and embodiment 1 is that the connecting member 5 includes two connecting shells 52 relatively installed on the outer peripheral edge of the end of the adjusting rod 3 away from the fixing rod 2, and a connecting through hole 521 is opened on the side of the connecting shell 52 away from the adjusting rod 3; when it is necessary to use the connecting member 5 to install the electrical test body 1 to the lower part of the drone, a bolt is used to pass through the connecting through hole 521 and select it into the corresponding screw hole on the bottom side of the drone.

[0037] Reference Figure 3 and Figure 4The end edges of the adjusting rod 3 are rotatably connected to the two connecting shells 52; after the adjusting rod 3 is fully inserted into the fixing hole 21, the two connecting shells 52 can be rotated back to back and sleeved on the outside of the test body 1. At this time, the two connecting shells 52 are close to each other on the sides for the test body 1 to be placed in a protective cavity 522, wherein the outside of the test body 1 is provided with a locking piece 6, which is used to fix the two connecting shells 52 when protecting the test body 1; when the test device is shipped out of the factory, the connecting shell 52 can be used to protect the test body 1, and the overall volume can be reduced, thereby reducing transportation costs.

[0038] Reference Figure 4 、 Figure 5 and Figure 6 , the two connecting shells 52 are provided with guide grooves 523 on the sides away from each other when they are sleeved on the outside of the test body 1, wherein the locking member 6 includes a locking shaft 61 rotatably mounted on the outside of the test body 1, and a locking rod 62 is fixed on the outer periphery of the end of the locking shaft 61 away from the test body 1; On the two opposite outer sides of the test body 1, movable rods 64 are slidably mounted, the length of which is perpendicular to the axis of the fixed rod 2. The sliding direction of the movable rod 64 is parallel to the axis of the fixed rod 2. The locking rod 62 is rotatably mounted on the side of the movable rod 64 away from the test body 1, and the locking rod 62 can rotate around its own axis. The locking rod 62 can be rotated to a state parallel and perpendicular to the guide slot 523. The length of the guide slot 523 is greater than the length of the locking rod 62. When the locking rod 62 is adjusted to a parallel state, it can pass through the guide slot 523 and extend to the outside of the connecting shell 52. When the locking rod 62 is outside the connecting shell 52 and adjusted to a vertical state, the connecting shell 52 can be locked.

[0039] Reference Figure 6 and Figure 7 , an elastic clamping member 63 is provided on the side of the locking rod 62 close to the electrical test body 1, wherein the elastic clamping member 63 includes a compression spring 631 and an arc-shaped protrusion 632, and a placement groove 621 for the compression spring 631 and the arc-shaped protrusion 632 is opened on the locking rod 62, wherein the compression spring 631 presses one side of the arc-shaped protrusion 632 so that the protruding portion of the arc-shaped protrusion 632 protrudes from the opening of the placement groove 621, and the protruding portion of the arc-shaped protrusion 632 is an arc surface, and the arc length corresponding to the arc surface is the inferior arc; When the connecting shell 52 is in a state of protecting the test body 1, a positioning groove 524 is provided on the outer surface thereof for the elastic clip 63 to be snapped into; when the connecting shell 52 protects the outside of the test body 1, and the locking rod 62 is outside the connecting shell 52 and rotated to a state perpendicular to the guide groove 523, the compression spring 631 squeezes the arc-shaped protrusion 632 so that the protruding part of the arc-shaped protrusion 632 can be inserted into the corresponding positioning groove 524.

[0040] Reference Figure 5 and Figure 6 A cleaning cotton 65 is fixed on the side of the moving rod 64 close to the test body 1; the staff can drive the cleaning cotton 65 to clean the outer side of the test body 1 by controlling the sliding of the moving rod 64; the two ends of the moving rod 64 are vertically fixed with extension protrusions 641 facing the test body 1, and the sides where the two extension protrusions 641 are close to each other are integrally formed with guide protrusions 642; the two opposite outer sides of the test body 1 are provided with guide grooves 11 for the guide protrusions to be inserted and rotated; in this way, the sliding connection between the moving rod 64 and the outside of the test body 1 is realized.

[0041] Reference Figure 8 The side edge of the test body 1 close to the fixed rod 2 is a guide arc surface 12; wherein the movable rod 64 can rotate synchronously along the guide arc surface 12 with the rotation of the guide protrusion 642, and the locking rod 62 is rotated to be perpendicular to the length direction of the guide groove 523, and the locking rod 62 can rotate with the movable rod 64 to abut against the outer peripheral surface of the fixed rod 2 in this state; The outer periphery of the fixed rod 2 is provided with a fastener 7 that locks the locking rod 62 in contact with the outer periphery of the fixed rod 2; when the fastener 7 fixes the locking rod 62, the locking rod 62, the moving rod 64 and the locking shaft can be used to enhance the connection stability between the test body 1 and the fixed rod 2.

[0042] Reference Figure 8 A fastening through hole 622 is provided on the locking rod 62, and a fastening screw hole 23 is provided on the outer periphery of the fixing rod 2. The fastener 7 is a fastening bolt 71 that passes through the fastening through hole 622 and is screwed into the fastening screw hole 23. The fastening bolt 71 is a second butterfly bolt, and the tightening or loosening of the fastening bolt 71 can be manually controlled.

[0043] A method for testing the electrical power of an airborne non-contact overhead line, using the above-mentioned airborne non-contact overhead line electrical power testing device, comprises the following steps: Step 1: In the initial transport state, the adjustment rod 3 is fully inserted into the fixing hole 21, and the two connecting shells 52 are rotated back to back and sleeved on the outside of the electrical test body 1, and the two connecting shells 52 in this state are locked by the locking member 6; Step 2: Install the application state. Release the lock of the connecting shell 52 by the locking member 6, then rotate the connecting shell 52 in the opposite direction and fix it on the drone. Then adjust the overall length of the fixing rod 2 and the adjusting rod 3. Step 3, drive the moving rod 64 to slide, and use the cleaning cotton 65 to clean the outside of the electrical test body 1; after cleaning, rotate the moving rod 64 along the guide arc surface 12, and finally use the fastener 7 to fix the locking rod 62 on the outer periphery of the fixed rod 2.

[0044] The implementation principle of the embodiment of this application is: During transportation, the adjusting rod 3 is fully inserted into the fixing hole 21, and the two connecting shells 52 are rotated in opposite directions to be sleeved on the outside of the electrical test body 1 and fixed by the locking member 6. At this time, the locking rod 62 is rotated to be parallel to and penetrate the guide groove 523, and then rotated to be perpendicular. The arc-shaped protrusion 632 of the elastic clamping member 63 is locked into the positioning groove 524, thereby protecting the electrical test body 1 and reducing the volume and transportation cost. In the installation application scenario, release the lock of the locking member 6 on the connecting shell 52, then rotate the connecting shell 52 in the opposite direction and fix it on the drone; then unscrew the adjusting bolt 4 to adjust the distance between the electrical test body 1 and the drone, and then tighten it; finally, pass the bolt through the connecting through hole 521 and screw it into the corresponding screw hole of the drone to complete the installation of the electrical test body 1 and the drone; During cleaning, the operator controls the sliding movement of the movable rod 64, and the cleaning cotton 65 thereon cleans the outer surface of the electrical test body 1. The movable rod 64 can rotate along the guide arc 12 along with the guide protrusion 642. When the locking rod 62 is rotated to be perpendicular to the guide groove 523 and abuts the outer circumference of the fixed rod 2, the fastener 7 (second butterfly bolt) is inserted through the fastening hole 622 and screwed into the fastening screw hole 23, thereby enhancing the connection stability between the electrical test body 1 and the fixed rod 2.

[0045] Unless otherwise defined, the terms or scientific terms used in this application should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "A" or "one" and other similar words do not indicate a quantity limit, but rather indicate the existence of at least one. "Include" or "comprising" and other similar words mean that the elements or objects appearing before "include" or "comprising" cover the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0046] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. An airborne non-contact overhead line electrical testing device, characterized in that: The device comprises an electrical test body (1), an adjusting rod (3), and a fixing rod (2) fixed on the outer periphery of the electrical test body (1); an end of the fixing rod (2) away from the electrical test body (1) is provided with a fixing hole (21) for the adjusting rod (3) to be coaxially inserted and slidably provided. An adjustment through hole (22) is provided on the outer periphery of the fixing rod (2), and a plurality of adjustment screw holes (31) are evenly provided on the outer periphery of the adjustment rod (3) along its length direction. An adjustment bolt (4) is provided on the outside of the fixing rod (2) and is screwed into the adjustment screw hole (31) after passing through the adjustment through hole (22). A connecting piece (5) for mounting with the drone is installed at the end of the adjustment rod (3) away from the fixing rod (2).

2. The airborne non-contact overhead line electrical testing device according to claim 1, characterized in that: The adjusting bolt (4) is a first butterfly bolt (41).

3. The airborne non-contact overhead line electrical testing device according to claim 1, characterized in that: The connecting member (5) comprises two connecting shells (52) mounted on the outer periphery of the end of the adjusting rod (3) away from the fixed rod (2), and a connecting through hole (521) is provided on the side of the connecting shell (52) away from the adjusting rod (3).

4. The airborne non-contact overhead line electrical testing device according to claim 3, characterized in that: The end edges of the regulating rod (3) are rotatably connected to the two connecting shells (52), and the two connecting shells (52) are provided with a protective cavity (522) for the electrical test body (1) to be placed therein; After the adjustment rod (3) is completely inserted into the fixing hole (21), the two connecting shells (52) can be rotated in opposite directions and sleeved on the outside of the test body (1); a locking member (6) is provided on the outside of the test body (1), and the locking member (6) is used to fix the two connecting shells (52) when protecting the test body (1).

5. The airborne non-contact overhead line electrical testing device according to claim 4, characterized in that: When the two connecting shells (52) are sleeved on the outside of the test body (1), guide grooves (523) are provided on the sides away from each other. The locking member (6) includes a locking shaft (61) that is rotatably and vertically mounted on the outside of the test body (1). A locking rod (62) is fixed on the outer periphery of the end of the locking shaft (61) away from the test body (1). The locking rod (62) can rotate with the locking shaft (61) to a state parallel to and perpendicular to the length direction of the guide slot (523); when the locking rod (62) is in the parallel state, it can penetrate the guide slot (523) and extend to the outside of the connecting shell (52); when the locking rod (62) is outside the connecting shell (52) and rotated to a vertical state, it can lock the connecting shell (52).

6. The airborne non-contact overhead line electrical testing device according to claim 5, characterized in that: An elastic clamping piece (63) is provided on the side of the locking rod (62) close to the electrical test body (1), and a positioning groove (524) for the elastic clamping piece (63) to be clamped is provided on the outer surface of the connecting shell (52) when the connecting shell (52) is in a state of protecting the electrical test body (1).

7. The airborne non-contact overhead line electrical testing device according to claim 5, characterized in that: A movable rod (64) having a length perpendicular to the axis of the fixed rod (2) is slidably provided on two opposite outer sides of the electrical test body (1), and a sliding direction of the movable rod (64) is parallel to the axis of the fixed rod (2); a cleaning cotton (65) is fixedly provided on the side of the movable rod (64) close to the electrical test body (1).

8. The airborne non-contact overhead line electrical testing device according to claim 7, characterized in that: The side edge of the test body (1) close to the fixed rod (2) is a guide arc surface (12), and the two ends of the movable rod (64) are vertically fixed with extension protrusions (641) facing the test body (1), and the sides of the two extension protrusions (641) close to each other are fixed with guide protrusions (642); the two opposite outer sides of the test body (1) are provided with guide grooves (11) for the guide protrusions to be inserted and rotated; The movable rod (64) can rotate synchronously with the guide protrusion (642) along the guide arc surface (12); when the locking rod (62) rotates to a position perpendicular to the length direction of the guide groove (523), the locking rod (62) can rotate along with the movable rod (64) to a state of abutting against the outer peripheral surface of the fixed rod (2); and a fastener (7) is provided on the outer periphery of the fixed rod (2) for locking the locking rod (62) in abutting state with the outer periphery of the fixed rod (2).

9. The airborne non-contact overhead line electrical testing device according to claim 8, characterized in that: A fastening through hole (622) is provided on the locking rod (62), a fastening screw hole (23) is provided on the outer periphery of the fixing rod (2), the fastener (7) is a fastening bolt (71) which passes through the fastening through hole (622) and is screwed into the fastening screw hole (23), and the fastening bolt (71) is a second butterfly bolt.

10. An airborne non-contact overhead line electrical testing method, characterized in that: The airborne non-contact overhead line electrical testing device according to any one of claims 1 to 9 comprises the following steps: Step 1: In the initial transport state, the adjusting rod (3) is completely inserted into the fixing hole (21), the two connecting shells (52) are rotated in opposite directions and sleeved on the outside of the electrical test body (1), and the two connecting shells (52) in this state are locked by the locking member (6); Step 2, in the installation application state, release the locking member (6) from locking the connecting shell (52), then rotate the connecting shell (52) in the opposite direction, and fix the rotated connecting shell (52) on the drone, and then adjust the overall length of the fixing rod (2) and the adjusting rod (3); Step 3, driving the moving rod (64) to slide, and using the cleaning cotton (65) to clean the exterior of the electrical testing body (1); After cleaning is completed, the movable rod (64) is rotated along the guide arc surface (12), and finally the locking rod (62) is fixed to the outer periphery of the fixed rod (2) using the fastener (7).

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