High-voltage overhead transmission line electricity testing carrying device applied to unmanned aerial vehicle

Abstract

A high-voltage overhead transmission line electricity testing carrying device applied to an unmanned aerial vehicle is characterized in that an electroscope is installed in an insulating shell, the electroscope extends out of the shell and is provided with a metal rod, the end portion of the metal rod is provided with a metal contact sheet in contact with a wire, and two sides of the insulating shell are further provided with distance adjusting carrying structures. The distance adjusting carrying structure can be hung between supporting legs with different widths and distances of the unmanned aerial vehicle. Through the designed distance adjusting carrying structure, the device can be flexibly adjusted to adapt to unmanned aerial vehicle supporting legs with different widths and distances, the universality and practicability of the device are greatly improved, one carrying device can meet the electricity testing requirements of various unmanned aerial vehicle models, and the use and replacement cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical testing equipment, in particular to a carrying device for electrical testing of high-voltage overhead power transmission lines used in unmanned aerial vehicles. Background Art

[0002] Before working on high-voltage overhead transmission lines, electrical testing is an essential step. Through electrical testing, it can be confirmed whether the line has been powered off, thereby avoiding the occurrence of serious accidents such as live installation of grounding wires or live closing of grounding switches, and ensuring the safety of operators. Existing electrical testing operations for high-voltage overhead transmission lines are mostly done by workers controlling drones on the ground, allowing drones carrying electrical testers to fly to designated line locations, and then performing corresponding electrical testing operations. The installation of electrical testers on drones requires the use of a carrying device, which is mounted on the legs of the drone to ensure that the center of gravity of the drone will not shift after installation, thereby improving flight control accuracy. The current carrying device can only be used for a matching drone. For different types of drones, the leg positions and spacings are different, and the adaption and installation of the electrical tester cannot be completed through the carrying device, which brings trouble to the electrical testing operation of high-voltage overhead transmission lines. Summary of the invention

[0003] The purpose of the present invention is to provide a mounting device for high-voltage overhead power transmission line testing for unmanned aerial vehicles. Through the adjustable distance mounting structure, the tester can be adapted to be installed on the legs of different types of unmanned aerial vehicles, and subsequent high-voltage overhead power transmission line testing operations can be realized, thereby solving the problems in the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a carrying device for testing the electricity of high-voltage overhead power transmission lines applied to unmanned aerial vehicles, comprising an insulating shell, an electric tester installed in the insulating shell, a metal rod is arranged at one end of the electric tester extending out of the insulating shell, an insulating shield is installed at the end of the metal rod, and a metal contact piece that can be telescopically moved is arranged in the insulating shield, and distance-adjusting carrying structures are installed on both sides of the insulating shell, and the distance-adjusting carrying structures can be hung between the legs of the unmanned aerial vehicle with different widths and distances, and each distance-adjusting carrying structure includes a fixed rod installed on the electric tester, and a distance-adjusting rod connected to the fixed rod, the end of the distance-adjusting rod close to the fixed rod is a bending rod, and the end of the distance-adjusting rod away from the fixed rod is a long straight rod, and a plurality of circumferentially arranged limiting grooves are arranged at the end of the fixed rod close to the bending rod, and a limiting block matching the limiting groove is arranged on the end face of the bending rod, wherein an insertion rod is arranged on the end face of the bending rod at the center position of the limiting block, and a slot matching the insertion rod is arranged in the fixed rod, and a tension spring is also connected between the end of the insertion rod and the slot, and the tension spring is always There is a tendency for the upper limit block of the bending rod and the upper limit slot of the fixed rod to move closer to each other. After overcoming the elastic force of the tension spring to separate the limit block from the limit slot, the bending rod can rotate relative to the fixed rod and adjust the distance between the long straight rods in the distance-adjusting mounting structure on both sides. Two sets of sliding sleeves are installed on the long straight rod, and each set of sliding sleeves can move along the length direction of the long straight rod and be locked at a specified position of the long straight rod. The outer side of each sliding sleeve is connected to a strap through a ball-hitched seat. The strap can be fixedly tied to the legs of the drone. At the end of the long straight rod away from the bending rod, the strap can be fixedly tied to the legs of the drone. The square rod is hingedly installed on the part, and the long straight rod can rotate relative to the square rod. A counterweight plate is installed between the square rods of the distance-adjusting carrying structure on both sides. The counterweight plate is provided with a long square groove that matches the square rod. The square rods of the distance-adjusting carrying structure on both sides can move adaptively in the long square groove following the rotation of the bending rod. A power supply is installed on the insulating shell, and a first indicator light is set at the bottom of the insulating shell. The power supply is connected to the first indicator light through a power supply line. When the metal contact piece moves to contact the wire, the first indicator light can emit light. A screw hole is provided on the sliding sleeve, and a locking bolt is installed in the screw hole. Rotating the locking bolt can lock the sliding sleeve at the specified position of the long straight rod. A fixing plate is provided at one end of the long straight rod close to the bending rod, and a first spring is connected between the fixing plate and the sliding sleeve. The first spring always has a tendency to keep the sliding sleeve away from the fixing plate, and the sliding sleeve can elastically float along the length direction of the long straight rod. After the sliding sleeve is installed on the leg of the drone, when the drone drives the metal contact piece to move the contact wire, the elastic force of the first spring can be overcome to allow the counterweight plate to move backward relative to the drone.A telescopic sleeve is installed on the outer periphery of the end of the metal rod, and a metal contact piece is arranged at the end of the telescopic sleeve. An insulating shield that can be rotatably opened and closed is hingedly installed on the metal rod, and a torsion spring is arranged on the hinge axis of the insulating shield. The torsion spring always has the tendency to rotate the insulating shields on both sides closer together. A limiting convex edge is arranged on the outer periphery of the metal rod, and an annular buckle cover matching the limiting convex edge is arranged on the telescopic sleeve. A first contact piece is arranged at the end of the metal rod, and a second contact piece is arranged in the telescopic sleeve. The first contact piece and the second contact piece are both connected to the first indicator light through a control circuit. A second spring is installed between the telescopic sleeve and the metal rod. The second spring always has the tendency to separate the first contact piece and the second contact piece. When the metal contact piece contacts the wire, it can overcome the elastic force of the second spring to allow the first contact piece and the second contact piece to contact each other to form a passage and light up the first indicator light. A second indicator light is installed at the bottom of the counterweight plate. Through slots are provided in the fixed rod, plug rod, bending rod, long straight rod and square rod for passing the power line and control line. The second indicator light is connected to the power supply through the power line. The second indicator light is connected to the electroscope through the control circuit. After the electroscope detects that the wire is energized, the second indicator light can emit light. A card block is provided at one end of the square rod entering the long square slot. A card slot matching the card block is provided on the counterweight plate. The card slot is connected to the long square slot. A third spring is installed at one end outside the long square slot. The third spring always has a tendency to move the square rods on both sides closer.

[0005] The positive effect of the present invention is that: the carrying device for testing the electricity of high-voltage overhead power transmission lines applied to unmanned aerial vehicles described in the present invention has an electric tester installed in an insulating shell, and the electric tester extends out of the shell and is provided with a metal rod, and the end of the metal rod is provided with a metal contact piece in contact with the wire, and a distance-adjusting carrying structure is also installed on both sides of the insulating shell, and the distance-adjusting carrying structure can be hung between the legs of the unmanned aerial vehicle with different widths and distances. Through the distance-adjusting carrying structure designed as above, the device can be flexibly adjusted to adapt to the legs of unmanned aerial vehicles with different widths and spacings, which greatly improves the versatility and practicality of the device, so that one carrying device can meet the electricity testing needs of various unmanned aerial vehicle models, and reduces the cost of use and replacement. The setting of the binding strap and the ball hitch seat can make the carrying device easily fixed on the legs of unmanned aerial vehicles of various structural types, and the movable and locked sliding sleeve cooperates with the counterweight plate at the rear end, so that the carrying device will not affect the flying center of gravity of the unmanned aerial vehicle after installation, and improves the control accuracy of the unmanned aerial vehicle. The double protection design of the metal contact piece and the insulating shield not only ensures the accuracy of the electricity testing operation, but also effectively prevents accidental contact in the non-operating state, and improves the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is a side view of the present invention; Figure 3is a bottom view of the present invention; Figure 4 It is a structural diagram of a set of adjustable distance carrying structures; Figure 5 yes Figure 4 A partial enlarged view of middle I; Figure 6 yes Figure 5 Schematic diagram of the state where the limiting block and the limiting groove of the middle structure are separated; Figure 7 yes Figure 6 Middle AA section view; Figure 8 yes Figure 6 Middle BB section view; Fig. 9 It is a schematic diagram of the state where two sets of square rods are installed on the counterweight plate; Fig.10 It is a schematic diagram of the state when the distance between the long straight rods in the adjustable distance carrying structure on both sides is the largest; Fig.11 It is a schematic diagram of the structure in which a locking bolt is arranged on the sliding sleeve; Fig.12 It is a schematic diagram of a structure in which a telescopic sleeve is arranged on a metal rod; Fig.13 yes Fig. 9 Middle CC section view; Fig.14 This is a schematic diagram of the state in which the present invention is installed on a drone; Fig.15 It is another schematic diagram of the state of the present invention being installed on a UAV. DETAILED DESCRIPTION

[0007] The present invention provides a high-voltage overhead power transmission line power testing device for use in unmanned aerial vehicles, such as Figure 1-3 As shown, it includes an insulating shell 1, in which an electroscope 2 is installed, a metal rod 3 is arranged at one end of the electroscope 2 extending out of the insulating shell 1, an insulating shield 4 is installed at the end of the metal rod 3, and a telescopically movable metal contact piece 5 is arranged inside the insulating shield 4.

[0008] The metal contact piece 5 can contact the wire to be tested and detect whether it is charged through the tester 2. The setting of the insulating cover 4 can protect the internal metal contact piece 5 on the one hand, and on the other hand, its own tapered shape is conducive to the tester in flight to pick up the wire to be tested. As the drone flies, the wire can be moved close to the metal contact piece 5 under the guidance of the insulating cover 4, thereby reducing the requirements for the staff to control the flight accuracy of the drone.

[0009] In order to achieve the adaptive installation of the insulating shell 1 on different types of drones, adjustable distance carrying structures are installed on both sides of the insulating shell 1. The adjustable distance carrying structure can be hung between the legs of the drone with different widths and distances, and will not affect the flight center of gravity of the overall device.

[0010] like Figure 4-8 As shown, each distance-adjusting mounting structure includes a fixed rod 6 mounted on the electroscope 2, and a distance-adjusting rod connected to the fixed rod 6, the end of the distance-adjusting rod close to the fixed rod 6 is a bending rod 7, and the end of the distance-adjusting rod away from the fixed rod 6 is a long straight rod 13, wherein the bending rod 7 can rotate relative to the fixed rod 6. During the rotation of the bending rod 7, the distance between the long straight rods 13 in the distance-adjusting mounting structures on both sides can be adjusted to different extents.

[0011] In order to realize the relative rotational installation connection and relative rotational limitation between the bending rod 7 and the fixed rod 6, a plurality of circumferentially arranged limiting grooves 8 are provided at the end of the fixed rod 6 close to the bending rod 7, and a limiting block 9 matching the limiting grooves 8 is provided on the end face of the bending rod 7. The matching limiting grooves 8 and limiting blocks 9 can realize the rotational limitation of the fixed rod 6 and the bending rod 7.

[0012] The end face of the bending rod 7 at the center of the limit block 9 is provided with an insertion rod 10, and a slot 11 matching the insertion rod 10 is provided in the fixed rod 6. A tension spring 12 is also connected between the end of the insertion rod 10 and the slot 11, and the tension spring 12 always has a tendency to move the upper limit block 9 of the bending rod 7 and the upper limit slot 8 of the fixed rod 6 closer to each other. After overcoming the elastic force of the tension spring 12 to separate the limit block 9 from the limit slot 8, the bending rod 7 can rotate relative to the fixed rod 6 and adjust the distance between the long straight rods 13 in the distance adjustment mounting structure on both sides.

[0013] In the absence of external force, the elastic force of the tension spring 12 can move the end faces of the fixed rod 6 and the bending rod 7 closer together, and the rotation limit is achieved with the cooperation of the limit groove 8 and the limit block 9. Moreover, through the connection between the tension spring 12 and the insertion rod 10, the fixed rod 6 and the bending rod 7 are connected as a whole to facilitate the support of the front end tester 2.

[0014] When the distance between the long straight rods 13 on both sides needs to be adjusted to adapt to drones with different leg types, the relative position between the bending rod 7 and the fixed rod 6 needs to be adjusted by rotation. The staff can overcome the elastic force of the tension spring 12 to pull the bending rod 7 away from the fixed rod 6. Under the cooperative guiding action of the insertion rod 10 and the slot 11, the bending rod 7 will not be separated from the fixed rod 6. Then, the bending rod 7 is rotated with the insertion rod 10 as the axis. Due to the bending shape of the bending rod 7 itself, the long straight rod 13 will move in the horizontal direction when the bending rod 7 rotates, thereby achieving the distance adjustment between the long straight rods 13 on both sides. When the distance is adjusted to the specified size, the bending rod 7 can be loosened, allowing the bending rod 7 to move closer to the fixed rod 6 again under the elastic force of the tension spring 12, and the rotation lock is achieved by the limit groove 8 and the limit block 9 to maintain the set distance between the long straight rods 13 on both sides.

[0015] In order to realize the installation of the adjustable distance carrying structure on the UAV, two sets of sliding sleeves 14 are installed on the long straight rod 13, and each set of sliding sleeves 14 can move along the length direction of the long straight rod 13 and lock at a specified position of the long straight rod 13 to adapt to the position and spacing of the bottom legs of different types of UAVs. The outer side of each sliding sleeve 14 is connected to a strap 16 through a ball-hitch seat 15, and the strap 16 can be fixedly tied to the legs of the UAV, wherein the setting of the strap 16 allows the carrying device to adapt to UAV legs of various shapes and thicknesses, and the setting of the ball-hitch seat 15 can adapt to the legs of various inclination types at the bottom of the UAV, thereby greatly improving the adaptability of the device to various types of UAVs.

[0016] In order to adjust the center of gravity of different types of drones, a square rod 17 is hingedly installed at the end of the long straight rod 13 away from the bending rod 7, and the long straight rod 13 can rotate relative to the square rod 17. Fig. 9 As shown, a counterweight plate 18 is installed between the square rods 17 of the distance-adjustable carrying structure on both sides, and a long square groove 19 is opened on the counterweight plate 18 to match the square rods 17. The square rods 17 of the distance-adjustable carrying structure on both sides can adaptively move in the long square groove 19 following the rotation of the bending rod 7.

[0017] The above-mentioned matching square rod 17 and long square groove 19 can limit the rotation of the square rod 17, and only allow the square rod 17 to move in the long square groove 19. The adjustment in the height direction can be adaptively adjusted by the position of the counterweight plate 18 relative to the drone. By adjusting the position of the sliding sleeve 14 on the long straight rod 13, the sliding sleeve 14 is fixedly mounted on the drone leg, that is, the relative position of the drone leg and the counterweight plate 18 is adjusted, so that the position of the counterweight plate 18 can be adaptively adjusted according to the type of drone, ensuring that the installation of the carrying device on the drone will not affect the flight center of gravity.

[0018] When the drone carries the tester 2 to test the wire, whether the metal contact piece 5 is in contact with the wire may not be captured by the drone's own camera. In order to ensure that the information that the metal contact piece 5 is in contact with the wire is known to the staff, so as to facilitate subsequent normal test operations, a power supply 20 is installed on the insulating shell 1, and a first indicator light 21 is set at the bottom of the insulating shell 1. The power supply 20 is connected to the first indicator light 21 through a power supply line. When the metal contact piece 5 moves to contact the wire, the first indicator light 21 can emit a bright light to prompt the staff on the ground. Subsequently, the tester 2 can be checked to confirm whether the wire is energized.

[0019] Furthermore, in order to realize the positioning and locking of the sliding sleeve 14 at the length position of the long straight rod 13, the flying center of gravity of the UAV after the electroscope 2 is mounted can be adjusted, such as Fig.11 As shown, a screw hole is provided on the sliding sleeve 14 , and a locking bolt 22 is installed in the screw hole. The sliding sleeve 14 can be locked at a specified position of the long straight rod 13 by rotating the locking bolt 22 .

[0020] Furthermore, in order to automatically correct the flight of the drone when it makes a contact error operation in the air, a fixing plate 23 is provided at one end of the long straight rod 13 close to the bending rod 7, and a first spring 24 is connected between the fixing plate 23 and the sliding sleeve 14. The first spring 24 always has a tendency to keep the sliding sleeve 14 away from the fixing plate 23, and the sliding sleeve 14 can elastically float along the length direction of the long straight rod 13. After the sliding sleeve 14 is installed on the leg of the drone, when the drone drives the metal contact piece 5 to move the contact wire, it can overcome the elastic force of the first spring 24 and allow the counterweight plate 18 to move backward relative to the drone.

[0021] In the above structure, the sliding sleeve 14 is relatively fixed to the long straight rod 13 by the first spring 24. In the absence of external force, the distance between the sliding sleeve 14 and the fixed plate 23 is the length of the first spring 24 in a normal state. At this time, it is necessary to select a counterweight plate 18 suitable for this drone to ensure that the sliding sleeve 14 will not affect the flight center of gravity after being installed on the drone leg.

[0022] When the carrying device without the first spring 24 is mounted on the drone, after the metal contact piece 5 contacts the wire to be tested, an operation error occurs, and the drone continues to move the metal contact piece 5 toward the wire position. The front end of the entire device is subject to resistance, causing the drone to tilt forward, changing the flight path and even damaging the power transmission line. If the above situation occurs when the first spring 24 is used in the carrying device, the elastic force of the first spring 24 will be overcome, causing the entire carrying device to move backward relative to the drone, that is, the center of gravity of the drone will move backward, and the drone will tilt to the rear to fly, which can safely separate the drone and the metal contact piece 5 at its front end from the wire to be tested.

[0023] Furthermore, in order to allow the metal contact piece 5 to immediately light up the first indicator light 21 when it contacts the wire to be tested, Fig.12 As shown, the outer periphery of the end of the metal rod 3 is matched with a telescopic sleeve 25, and the telescopic sleeve 25 is also made of metal material to ensure that an electrical test path is formed between the metal contact piece 5 and the metal rod 3. The metal contact piece 5 is arranged at the end of the telescopic sleeve 25, and an insulating shield 4 that can be rotated and opened is hingedly installed on the metal rod 3. A torsion spring 26 is arranged on the hinge axis of the insulating shield 4, and the torsion spring 26 always has a tendency to rotate the insulating shields 4 on both sides closer. The rotating opening and closing insulating shield 4 can smoothly separate the wire from the insulating shield 4 after the test is completed. When controlling the drone to fly away, there is no need to require flight control accuracy, and the insulating shield 4 and the wire will not interfere during the flight process.

[0024] The outer periphery of the metal rod 3 is provided with a limiting convex edge 27, and the telescopic sleeve 25 is provided with an annular buckle cover 28 matched with the limiting convex edge 27, and the annular buckle cover 28 can be disassembled relative to the telescopic sleeve 25. A first contact piece 29 is provided at the end of the metal rod 3, and a second contact piece 30 is provided in the telescopic sleeve 25. The first contact piece 29 and the second contact piece 30 are both connected to the first indicator light 21 through a control circuit. A second spring 31 is installed between the telescopic sleeve 25 and the metal rod 3.

[0025] The second spring 31 always has a tendency to separate the first contact piece 29 and the second contact piece 30. When the metal contact piece 5 contacts the wire, the elastic force of the second spring 31 can be overcome to allow the first contact piece 29 and the second contact piece 30 to contact to form a path and light up the first indicator light 21. The design of the second spring 31 and the contact piece further enhances the trigger sensitivity of the signal during the electrical contact test, ensuring that the first indicator light 21 can be immediately lit when the metal contact piece 5 contacts the wire.

[0026] When performing the electrical test operation, the camera on the drone may not be able to clearly observe the indication on the tester 2 whether it is energized. In order to ensure that the ground staff can know whether the wire to be tested is energized, a second indicator light 32 is installed at the bottom of the counterweight plate 18, and the fixed rod 6, the plug rod 10, the bending rod 7, the long straight rod 13 and the square rod 17 are all provided with through grooves for the power line and the control line to pass through. The second indicator light 32 is connected to the power supply 20 through the power line, and the second indicator light 32 is connected to the tester 2 through the control line. When the tester 2 detects that the wire is energized, the second indicator light 32 can emit light.

[0027] When the electrical test is being performed, if the first indicator light 21 is not on, it means that the metal contact piece 5 has not yet contacted the wire to be tested. If the first indicator light 21 is on and the second indicator light 32 is not on, it means that the wire to be tested is not energized. If both the first indicator light 21 and the second indicator light 32 are on, it means that the wire to be tested is energized. The setting of the first indicator light 21 and the second indicator light 32 respectively provides instant feedback from the contact state and the energized state, enhances the reliability of the electrical test results and the intuitive perception of the operator, and improves the work efficiency and safety.

[0028] Furthermore, in order to prevent the square rod 17 from being separated from the long square groove 19. Fig.13 As shown, a block 33 is provided at one end of the square rod 17 entering the long square groove 19, and a slot 34 matching the block 33 is provided on the counterweight plate 18, and the slot 34 is connected to the long square groove 19. A third spring 35 is installed at one end outside the long square groove 19, and the third spring 35 always has a tendency to move the square rods 17 on both sides closer. The arrangement of the third spring 35 can keep the adjustable distance carrying structures on both sides in a centered state, thereby ensuring that the flying center of gravity of the drone with the carrying device will not deviate.

[0029] In the mounting device described in the present invention, only the metal contact piece 5, the telescopic sleeve 25 and the metal rod 3 are made of conductive materials, and the remaining exposed mechanism components are made of insulating materials or coated with insulating coatings on the surface to achieve corresponding insulation performance.

[0030] Furthermore, in order to ensure that the camera on the drone can face the electroscope 2 for auxiliary shooting, the mounting device can be adjusted and installed according to the position of the camera on the drone, such as Fig.14 and Fig.15 As shown, the carrying device can be installed horizontally or vertically on the legs of the drone, ensuring that cameras at different positions on different types of drones can be oriented toward the electrical inspection position of the wire for auxiliary shooting.

[0031] The carrying device for testing the electricity of high-voltage overhead power transmission lines applied to unmanned aerial vehicles described in the present invention has a compact structure and clever connections between components. It is not only easy to carry and install, but also can achieve distance adjustment and fixation through simple operations, which reduces the difficulty of operation and improves the user experience. It is highly adaptable, easy to install, safe and reliable, and has clear instructions, which greatly improves the efficiency and safety of unmanned aerial vehicle electricity testing operations and has significant technical advantages and practical value.

[0032] The technical solution of the present invention is not limited to the scope of the embodiments described in the present invention. The technical contents not described in detail in the present invention are all well-known technologies.

Claims

1. A high-voltage overhead power transmission line power testing device used in unmanned aerial vehicles, characterized in that: The invention comprises an insulating shell (1), an electroscope (2) is installed in the insulating shell (1), a metal rod (3) is arranged at one end of the electroscope (2) extending out of the insulating shell (1), an insulating shield (4) is installed at the end of the metal rod (3), a telescopically movable metal contact piece (5) is arranged in the insulating shield (4), both sides of the insulating shell (1) are installed with a distance-adjustable mounting structure, the distance-adjustable mounting structure can be hung between legs of different widths and distances of a drone, each distance-adjustable mounting structure comprises a fixing rod (6) installed on the electroscope (2), and a distance-adjustable rod connected to the fixing rod (6), one end of the distance-adjustable rod close to the fixing rod (6) is a bending rod (7), and the distance-adjustable rod is a movable rod. The end of the rod away from the fixed rod (6) is a long straight rod (13), and a plurality of circumferentially arranged limiting grooves (8) are provided at the end of the fixed rod (6) close to the bending rod (7), and a limiting block (9) matching the limiting groove (8) is provided on the end surface of the bending rod (7), wherein an insertion rod (10) is provided on the end surface of the bending rod (7) at the center of the limiting block (9), and a slot (11) matching the insertion rod (10) is provided in the fixed rod (6), and a tension spring (12) is connected between the end of the insertion rod (10) and the slot (11), and the tension spring (12) always has a tendency to move the upper limit block (9) of the bending rod (7) and the upper limit slot (8) of the fixed rod (6) closer to each other, so as to overcome the tension spring (12). After the elastic force of the spring (12) causes the limit block (9) to separate from the limit groove (8), the bending rod (7) can rotate relative to the fixed rod (6) and adjust the distance between the long straight rods (13) in the distance-adjusting mounting structure on both sides. Two sets of sliding sleeves (14) are installed on the long straight rod (13). Each set of sliding sleeves (14) can move along the length direction of the long straight rod (13) and be locked at a specified position of the long straight rod (13). The outer side of each sliding sleeve (14) is connected to a strap (16) through a ball joint seat (15). The strap (16) can be fixedly tied to the legs of the drone. A square rod (17) is hingedly installed at the end of the long straight rod (13) away from the bending rod (7). The long straight rod (13) ) can rotate relative to the square rod (17), a counterweight plate (18) is installed between the square rods (17) of the distance-adjustable carrying structures on both sides, and a long square groove (19) matching the square rod (17) is opened on the counterweight plate (18), and the square rods (17) of the distance-adjustable carrying structures on both sides can adaptively move in the long square groove (19) following the rotation of the bending rod (7), a power supply (20) is installed on the insulating housing (1), and a first indicator light (21) is arranged at the bottom of the insulating housing (1), and the power supply (20) is connected to the first indicator light (21) through a power supply line, and when the metal contact piece (5) moves to contact with the wire, the first indicator light (21) can emit light.

2. According to claim 1, a high-voltage overhead power transmission line power testing device applied to an unmanned aerial vehicle is characterized in that: The sliding sleeve (14) is provided with a screw hole, in which a locking bolt (22) is installed in cooperation, and the sliding sleeve (14) can be locked at a specified position of the long straight rod (13) by rotating the locking bolt (22).

3. The high-voltage overhead power line electricity testing device used in an unmanned aerial vehicle according to claim 1 is characterized in that: A fixing plate (23) is provided at one end of the long straight rod (13) close to the bending rod (7); a first spring (24) is connected between the fixing plate (23) and the sliding sleeve (14); the first spring (24) always has a tendency to move the sliding sleeve (14) away from the fixing plate (23); the sliding sleeve (14) can elastically float along the length direction of the long straight rod (13); after the sliding sleeve (14) is installed on the supporting leg of the drone, when the drone drives the metal contact piece (5) to move the contact wire, the elastic force of the first spring (24) can be overcome to allow the counterweight plate (18) to move backward relative to the drone.

4. The high-voltage overhead power line electricity testing device used in an unmanned aerial vehicle according to claim 1 is characterized in that: A telescopic sleeve (25) is mounted on the outer periphery of the end of the metal rod (3), a metal contact piece (5) is arranged at the end of the telescopic sleeve (25), an insulating shield (4) that can be rotatably opened and closed is hingedly mounted on the metal rod (3), a torsion spring (26) is arranged on the hinge axis of the insulating shield (4), and the torsion spring (26) always has a tendency to rotate the insulating shields (4) on both sides closer together, a limiting convex edge (27) is arranged on the outer periphery of the metal rod (3), a ring-shaped buckle cover (28) that matches the limiting convex edge (27) is arranged on the telescopic sleeve (25), and a first contact piece (28) is arranged at the end of the metal rod (3). 9), a second contact piece (30) is provided in the telescopic sleeve (25), the first contact piece (29) and the second contact piece (30) are both connected to the first indicator light (21) through a control circuit, a second spring (31) is installed between the telescopic sleeve (25) and the metal rod (3), the second spring (31) always has a tendency to separate the first contact piece (29) and the second contact piece (30), when the metal contact piece (5) contacts the wire, it can overcome the elastic force of the second spring (31) to allow the first contact piece (29) and the second contact piece (30) to contact to form a passage and light up the first indicator light (21).

5. The high-voltage overhead power transmission line power testing device used in an unmanned aerial vehicle according to claim 1 is characterized in that: A second indicator light (32) is installed at the bottom of the counterweight plate (18). Through slots for passing a power line and a control line are provided in the fixed rod (6), the plug rod (10), the bent rod (7), the long straight rod (13) and the square rod (17). The second indicator light (32) is connected to the power source (20) via the power line. The second indicator light (32) is connected to the electroscope (2) via the control line. When the electroscope (2) detects that the wire is energized, the second indicator light (32) can emit light.

6. The high-voltage overhead power transmission line power testing device used in an unmanned aerial vehicle according to claim 1, characterized in that: A clamping block (33) is provided at one end of the square rod (17) entering the long square groove (19); a clamping groove (34) matching with the clamping block (33) is provided on the counterweight plate (18); the clamping groove (34) is connected to the long square groove (19); a third spring (35) is installed at one end outside the long square groove (19); the third spring (35) always has a tendency to move the square rods (17) on both sides closer together.

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