Grounding line device of ultra-high voltage transformer substation suitable for unmanned aerial vehicle hanging and taking

Abstract

This application discloses a grounding wire device for ultra-high voltage (UHV) substations suitable for drone-mounted connection, belonging to the field of UHV substation operation and maintenance safety technology. It addresses the high risk and insufficient reliability of existing grounding wire connection operations. The device includes a hanging ring, a connection mechanism, and a fixing mechanism: the hanging ring is adapted for drone mounting; the fixing mechanism uses an inverted trapezoidal V-shaped convergent structure to achieve self-guiding alignment during connection; after connection, a pre-tightening structure automatically forms a self-locking mechanism, further ensuring electrical contact performance with elastic contact fingers. This device eliminates the need for manual climbing, achieves a connection success rate of over 99%, resists wind-induced loosening, meets the high-current discharge requirements of UHV substations, is compatible with various types of connection points, significantly improves the safety and efficiency of grounding operations, and is suitable for various UHV substation outage maintenance grounding scenarios.

Description

Technical Field

[0001] This application belongs to the field of operation and maintenance safety technology for ultra-high voltage substations, and specifically relates to a grounding wire device for ultra-high voltage substations that can be retrieved by drones. Background Technology

[0002] During power outage maintenance work at ultra-high voltage and extra-high voltage substations, reliable grounding wire connection is a core safety measure to prevent hazards from sudden power restoration and induced current, and to ensure the personal safety of workers. As the scale of my country's ultra-high voltage and extra-high voltage power grid continues to expand, the voltage levels of equipment in substations are higher and the installation locations are more complex, highlighting the limitations of traditional grounding wire connection methods.

[0003] Currently, the mainstream grounding wire connection scheme is mainly a manual high-altitude operation mode. After the maintenance personnel reach the connection point through a lift vehicle, they manually complete the connection and removal of the grounding wire. In this mode, the workers face a high risk of falling from height and electric shock from induced current. Moreover, the work efficiency is significantly limited by the skill level of the personnel, weather conditions, and equipment installation space. The connection of a single grounding wire usually takes more than 30 minutes, which greatly extends the power outage maintenance window.

[0004] In recent years, the industry has begun to explore drone-assisted grounding wire connection solutions to replace manual high-altitude operations and reduce safety risks. However, existing grounding wire devices adapted to drones still have obvious technical defects: First, the connection structure lacks a self-guiding design, and the connection is prone to deviation when the drone is disturbed by high-altitude airflow. The success rate of connection is generally less than 60%, and repeated attempts only increase the operation time. Second, there is no reliable self-locking structure after connection, and the connection is achieved by simple hooking. During operation, it is easy to loosen due to wind swing and conductor vibration, posing a safety hazard of grounding failure. Third, the electrical contact between the connection device and the connection point relies on simple contact surface contact, and the contact resistance is unstable, making it difficult to meet the high current discharge requirements under ultra-high voltage levels. In addition, the existing devices have poor compatibility and cannot be compatible with different specifications of conduits and conductor connection points. Moreover, the disassembly process is prone to jamming, making efficient disassembly and assembly impossible.

[0005] In summary, existing grounding wire connection schemes are no longer suitable for the safe and efficient operation and maintenance requirements of ultra-high voltage and extra-high voltage substations. There is an urgent need to develop an ultra-high voltage and extra-high voltage substation grounding wire device that is compatible with UAV operations, has self-guiding snap-fit ​​capability, high connection reliability, and strong adaptability, in order to solve the problems of high operational risk, low efficiency, and insufficient connection reliability of existing technologies. Summary of the Invention

[0006] This application provides a grounding wire device for ultra-high voltage substations that can be attached by drones. The device uses a V-shaped self-guiding snap-fit ​​structure formed by the attachment mechanism and an inverted trapezoidal V-shaped convergent structure formed by the fixing mechanism to form a self-locking mechanism driven by the gravity of the grounding wire itself. This solves the problems of high operational risk, low efficiency and insufficient reliability in the attachment process.

[0007] To achieve the above objectives, this application provides a grounding wire device for ultra-high voltage substations suitable for drone-mounted applications, comprising a hanging ring, a mounting mechanism, and a fixing mechanism; the hanging mechanism has a hanging ring fixedly mounted on its top and a clamping component mounted on its bottom, the clamping component being used to firmly clamp the grounding wire onto the hanging mechanism; the fixing mechanism is fixedly mounted on the conductor and has an inverted trapezoidal V-shaped convergent structure, the hanging mechanism utilizing the grounding wire's own weight to clamp onto the inverted trapezoidal V-shaped convergent structure, forming a grounding loop;

[0008] The hanging mechanism includes a fixed rod that is fixedly connected to the top of the hanging ring. A fixed plate is set at the bottom of the fixed rod. Two hanging rods are rotatably mounted on both sides of the fixed plate about the fixed rod as the axis of symmetry through the lower fixed rotating shaft. The end of the hanging rod away from the fixed plate is connected to the adjustment component through the upper fixed rotating shaft. The adjustment component is set on the fixed rod between the fixed plate and the hanging ring.

[0009] In one embodiment, the adjustment component includes a U-shaped groove fixedly mounted on a fixed rod. Limiting slide rails are provided on both sides of the inner wall of the U-shaped groove. A slider is slidably mounted in the limiting slide rails. A spring is connected between the slider and the bottom of the U-shaped groove.

[0010] The through slider is provided with a sliding groove, and an adjusting clamp block slides through the sliding groove. The adjusting clamp block is provided with a knob and a connecting rod at one end. The other end of the connecting rod is rotatably connected to the hanging rod through an upper fixed rotating shaft.

[0011] In one embodiment, a torsion spring is provided on the upper fixed rotating shaft, with one end of the torsion spring connected to the hanging rod and the other end connected to the connecting rod.

[0012] In one embodiment, two hanging rods work together with a fixing plate to form a V-shaped hanging component.

[0013] In one embodiment, a pressure plate is provided at one end of the hanging rod near the upper fixed pivot, and the pressure plate is L-shaped and rigidly connected to the hanging rod.

[0014] In one embodiment, the clamping assembly includes a clamping plate fixed to a fixed plate by fastening bolts, and a fixing hole opened in the fixed plate. One end of a pull wire is disposed in the fixing hole, and the other end of the pull wire is connected to a pull wire fixing section. The pull wire fixing section is bound and fixed to a grounding wire.

[0015] The clamping plate secures and holds the end of the grounding wire in place by the fastening bolts.

[0016] In one embodiment, the fixing mechanism includes a V-shaped groove formed by two sets of inclined surfaces, baffles and fixing plates. The two sets of inclined surfaces form an inverted trapezoidal V-shaped converging structure. The baffles are fixedly installed on one side of the two sets of inclined surfaces, and the fixing plates are vertically fixed on the other side of the two sets of inclined surfaces to provide rigid support for the inclined surfaces.

[0017] In one embodiment, an extension rod is fixedly installed on the outer wall of the fixing plate, and a nut is fixedly installed at the end of the extension rod away from the fixing plate, with a clamp sleeved on the surface of the nut.

[0018] In one embodiment, a finger is provided inside the inclined surface, with the upper end of the finger fixedly connected to the inclined surface and the lower end suspended and having elastic deformation capability.

[0019] Compared with the prior art, the beneficial effects of this application are:

[0020] 1. Significantly reduce operational risks and improve maintenance efficiency: This device is fully compatible with drone-mounted operation mode, eliminating the need for maintenance personnel to climb to heights throughout the process. This eliminates the safety hazards of falling from heights and electric shock from induced current at the source. The connection of a single grounding wire can be completed within 5 minutes, which is more than 6 times more efficient than the traditional manual climbing operation mode. This significantly reduces the power outage maintenance window of ultra-high voltage substations and effectively improves the efficiency of power grid operation and maintenance.

[0021] 2. Precise and reliable attachment process with excellent anti-detachment performance: The inverted trapezoidal V-shaped convergent structure of the fixing mechanism achieves automatic guidance and centering during the attachment process, significantly reducing the requirements of airflow disturbance on the accuracy of drone operations, and the attachment success rate can reach over 99%. After attachment, the synergistic pre-tightening effect of springs and torsion springs forms a stable friction self-locking structure between the hanging rod and the inner wall of the V-shaped groove. Combined with the reverse resistance design of the inclined inner contact finger, it can resist the influence of wind swaying and wire vibration under wind force, avoiding the risk of accidental loosening of the grounding connection. During the removal process, the self-locking state can be quickly released by pressing the pressure plate with the drone, without the need for additional unlocking operations, completely solving the problem of jamming during the removal of traditional devices.

[0022] 3. Stable electrical connection, meeting the requirements of ultra-high voltage and extra-high voltage operating conditions: In the hanging state, the hanging rod and the V-shaped groove slope form a surface contact fit, which, together with the multi-point pressing effect of the elastic contact fingers, reduces the contact resistance and has the ability to discharge large fault current, fully complying with the grounding safety standards of ultra-high voltage and extra-high voltage substations; The grounding wire adopts a dual fixing design of clamping with clamps and pulling wire sharing of force, which can prevent the connection point from loosening and falling off under long-term self-weight load, ensuring the operational reliability of the grounding circuit throughout its entire life cycle.

[0023] 4. Strong scene adaptability and compatibility with multiple types of hanging point requirements: The fixing mechanism can be quickly adapted to hanging points of different diameter pipes through clamps, and can also be replaced with a bracket structure to adapt to hanging points in special positions such as horizontal conductors and down conductors, meeting the installation requirements of complex spaces in ultra-high voltage substations; the initial included angle of the hanging rod of the hanging mechanism can be flexibly adjusted through the adjustment component, and can adapt to different specifications of V-groove structures. It can adapt to the hanging point modification requirements of most operational substations without specific customization, and has extremely high promotion and application value. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 Overall schematic diagram provided for this application;

[0026] Figure 2 This is a schematic diagram of the mounting mechanism being inserted into the fixing mechanism provided in this application;

[0027] Figure 3 A schematic diagram of the mounting mechanism provided for this application;

[0028] Figure 4 This is a three-dimensional schematic diagram of the V-groove provided in this application;

[0029] Figure 5 A schematic diagram of the finger provided in this application;

[0030] Figure 6 This is a schematic diagram showing the connection between the grounding wire and the clamping assembly provided in this application;

[0031] Figure 7 A schematic diagram of the fixing mechanism provided for this application;

[0032] Figure 8 The first installation diagram of the fixing mechanism provided in this application;

[0033] Figure 9 The second installation diagram of the fixing mechanism provided in this application;

[0034] Figure 10 This is a schematic diagram of the dual-attachment mechanism provided in this application.

[0035] Explanation of reference numerals in the attached diagram: 1. Hanging ring; 2. Hanging rod; 3. V-groove; 4. Fixing rod; 5. Upper fixed pivot; 6. Torsion spring; 7. Connecting rod; 8. Knob; 9. Sliding groove; 10. Fixing plate; 11. Lower fixed pivot; 12. Fastening bolt; 13. Grounding wire; 14. U-groove; 15. Spring; 16. Pressure plate; 17. Inclined surface; 18. Baffle; 19. Fixing plate; 20. Contact finger; 21. Pull wire; 22. Fixing hole; 23. Pull wire fixing joint; 24. Clamp; 25. Tube nut; 26. Extension rod; 27. Wire; 28. Bracket. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0037] See Figures 1 to 10 As shown, the UHV substation grounding wire device applicable to UAV attachment provided in this application includes a hanging ring 1, a hanging mechanism, and a fixing mechanism; the hanging ring 1 is fixedly installed at the top of the hanging mechanism, and a clamping component is installed at the bottom. The clamping component is used to firmly clamp the grounding wire 13 onto the hanging mechanism; the fixing mechanism is fixedly installed on the conductor 27 and has an inverted trapezoidal V-shaped convergent structure. The hanging mechanism uses the weight of the grounding wire 13 to clamp onto the inverted trapezoidal V-shaped convergent structure to form a grounding loop.

[0038] In practical applications, the fixing mechanism is installed on the conductor 27, and the grounding wire 13 is reliably connected to the hanging mechanism through the clamping assembly. After the drone hovers at the target position, the hanging ring 1 is hooked onto the drone hook to complete the hanging operation. Then, the drone is operated to fly with the hanging mechanism directly above the fixing mechanism and slowly lower the hanging mechanism. When the bottom of the hanging mechanism enters the inverted trapezoidal V-shaped convergence structure, the drone hook releases the hanging ring 1, and the hanging mechanism automatically slides down and locks into the inverted trapezoidal V-shaped convergence structure under the weight of the grounding wire 13, completing the locking action.

[0039] When it is necessary to remove or replace the grounding wire, the drone re-engages with the hook and ring 1 and is slowly lifted. This allows the engagement mechanism to overcome the weight of the grounding wire 13 and the frictional resistance of the inverted trapezoidal V-shaped converging structure, causing the clamping assembly to move upwards synchronously. Once the engagement mechanism is completely disengaged from the inverted trapezoidal V-shaped converging structure, the drone can be smoothly returned to base. After the drone returns, ground operators use the clamping assembly to quickly remove and replace the grounding wire 13. The entire process eliminates the need for manual climbing, significantly improving operational safety and efficiency.

[0040] The hanging mechanism includes a fixed rod 4 that is fixedly connected to the top of the hanging ring 1. A fixed plate 10 is set at the bottom of the fixed rod 4. Two hanging rods 2 are rotatably set on both sides of the fixed plate 10 with the fixed rod 4 as the axis of symmetry through the lower fixed rotating shaft 11. The end of the hanging rod 2 away from the fixed plate 10 is connected to the adjustment component through the upper fixed rotating shaft 5. The adjustment component is set on the fixed rod 4 between the fixed plate 10 and the hanging ring 1.

[0041] In this embodiment, before the grounding wire 13 is hung, the initial included angle of the pre-set hanging rod 2 is adjusted to ensure that it is compatible with the geometric dimensions of the inverted trapezoidal V-shaped convergence structure of the fixing mechanism, thereby achieving accurate self-guiding insertion during the hanging and falling process. This significantly reduces the risk of hanging offset and jamming while improving the reliability of the connection and the stability of electrical contact after hanging.

[0042] During the hanging process, after the hanging rod 2 enters the inverted trapezoidal V-shaped convergence structure, the inclined surface formed by the hanging rod 2 and the inclined surface of the inverted trapezoidal V-shaped convergence structure fit together, causing the hanging rod 2 to automatically slide down along the inclined surface and retract radially until the hanging rod 2 is completely stuck into the limiting area at the bottom of the inverted trapezoidal V-shaped convergence structure, forming an effective locking effect.

[0043] It should be noted that during the sliding and retracting process of the hanging rod 2, the positive pressure generated between it and the inclined surface of the inverted trapezoidal V-shaped retracting structure is transmitted to the adjustment component through the upper fixed rotating shaft 5, causing the adjustment component to generate corresponding elastic deformation and dynamic response, thereby forming a reverse pressure on the hanging rod 2, so that the hanging rod 2 still maintains a moderate preload when it is retracted, which avoids loosening due to vibration and prevents overload damage to the structure.

[0044] Optionally, the adjustment component includes a U-shaped groove 14 fixedly mounted on the fixed rod 4. Limiting slide rails are provided on both sides of the inner wall of the U-shaped groove 14. A slider is slidably mounted in the limiting slide rails. A spring 15 is connected between the slider and the bottom of the U-shaped groove 14.

[0045] The through slider is provided with a sliding groove 9, and an adjusting clamp block slides through the sliding groove 9. The adjusting clamp block is provided with a knob 8 and a connecting rod 7 is rotatably provided at one end. The other end of the connecting rod 7 is rotatably connected to the hanging rod 2 through the upper fixed rotating shaft 5.

[0046] In this embodiment, the initial position of the adjusting clamp is preset according to the dimensions of the inverted trapezoidal V-shaped convergent structure of the fixing mechanism. During the sliding process of the adjusting slider in the sliding groove 9, it will drive the connecting rod 7 to rotate around the fixed rotating shaft 5 on it, changing its relative position, thereby changing the initial angle between the hanging rod 2 and the fixed rod 4, ensuring accurate guidance and reliable locking during the hanging process.

[0047] After the initial angle adjustment of the hanging rod 2 is completed, the knob 8 is rotated to change the clamping force of the adjusting clamp on the sliding groove 9, so that the adjusting clamp is firmly locked in the preset position in the sliding groove 9, thereby keeping the initial angle between the hanging rod 2 and the connecting rod 7 constant under the action of no external force.

[0048] It should be noted that during the process of the hanging rod 2 contacting the fixing mechanism and beginning to slide and retract, the connecting rod 7 drives the slider to slide along the limiting slide rail towards the fixing rod 4 as the hanging rod 2 retracts radially. During this process, a compressive force is simultaneously applied to the spring 1, and the reverse elastic force of the spring 15 is transmitted to the hanging rod 2 step by step through the slider, adjusting clamp and connecting rod 7, forming a continuous and stable pre-tightening feedback. This pre-tightening force works in conjunction with the weight of the hanging rod 2 and the positive pressure of the inclined surface to ensure dynamic self-adaptation throughout the entire hanging process, final locking fit and the formation of a stable self-locking friction pair between the inclined surface of the inverted trapezoidal V-shaped convergence structure, significantly improving the operational robustness and electrical connection reliability under complex working conditions.

[0049] It needs to be explained that the grounding loop starts from conductor 27, passes through the fixing mechanism to the hanging rod 2, the hanging rod 2 to the fixing plate 10, and then enters the grounding wire 13 through the fixing plate 10, finally flowing into the ground to form a complete circuit.

[0050] Optionally, a torsion spring 6 is installed on the upper fixed rotating shaft 5. One end of the torsion spring 6 is connected to the hanging rod 2, and the other end is connected to the connecting rod 7. The torsion spring 6 is synchronously torsionally twisted and stores energy during the retraction of the hanging rod 2. When the hanging rod 2 disengages from the fixed mechanism, the torsion spring 6 gradually releases its elastic potential energy, driving the hanging rod 2 to reset and open, providing an immediate response for the next attachment action. This elastic coordination mechanism complements the pre-tension of the spring 15, ensuring both adaptive fit during attachment and reliable separation during disengagement, further enhancing the continuity and safety of UAV operations.

[0051] Optionally, the two hanging rods 2, together with the fixing plate 10, form a V-shaped hanger. The included angle of the hanger 2 narrows dynamically and synchronously as it retracts, ensuring that the hanger 2 is simultaneously locked in the inverted trapezoidal V-shaped converging structure, avoiding poor contact caused by unilateral force. During the narrowing of the included angle, the inclined surface at the end of the hanging rod 2 remains in contact with the inner wall of the fixing structure, enhancing the stability of the electrical connection.

[0052] Optionally, a pressure plate 16 is provided at one end of the hanging rod 2 near the upper fixed pivot 5. The pressure plate 16 is L-shaped and rigidly connected to the hanging rod 2.

[0053] In this embodiment, when it is necessary to remove or replace the grounding wire, the drone applies symmetrical pressure to the pressure plate 16, causing the two hanging rods 2 to retract inward, separating the inclined surfaces of the hanging rods 2 from the inner wall of the fixed structure, releasing the frictional self-locking state between the hanging rods 2 and the fixed structure, thereby facilitating the drone to smoothly pull the grounding wire away from the attachment position. The L-shaped structure of the pressure plate 16 effectively disperses the compressive force, avoids local stress concentration, and ensures the synchronicity of the retraction action of the hanging rods 2.

[0054] Optionally, the clamping assembly includes a clamping plate fixed to the fixed plate 10 by fastening bolts 12, and a fixing hole 22 opened in the fixed plate 10. One end of the pull wire 21 is disposed in the fixing hole 22, and the other end of the pull wire 21 is connected to the pull wire fixing section 23. The pull wire fixing section 23 is tied and fixed to the grounding wire 13.

[0055] The clamping plate secures the end of the grounding wire 13 under the action of the fastening bolt 12.

[0056] In this embodiment, loosening the fastening bolt 12 releases the clamping plate, allowing the end of the grounding wire 13 to be placed between the clamping plate and the fixing plate 10. Tightening the fastening bolt 12 then secures the grounding wire 13 between the clamping plate and the fixing plate 10, forming a reliable starting point for the electrical path. The pull wire 21 shares the weight of the grounding wire 13 through the pull wire fixing section 23, effectively relieving the mechanical stress at the connection between the fastening bolt 12 and the clamping plate, preventing long-term stress from causing the bolt to loosen and the grounding wire to fall off, thereby improving the operational reliability of the grounding wire 13 under complex working conditions.

[0057] Optionally, the fixing mechanism includes a V-shaped groove 3 formed by two sets of inclined surfaces 17, baffles 18 and fixing plates 19. The two sets of inclined surfaces 17 form an inverted trapezoidal V-shaped converging structure. The baffles 18 are respectively fixed on one side of the two sets of inclined surfaces 17, and the fixing plates 19 are vertically fixed on the other side of the two sets of inclined surfaces 17 to provide rigid support for the inclined surfaces 17.

[0058] In this embodiment, the inverted trapezoidal structure of the V-groove 3 guides the hanging rod 2 to automatically center when the UAV is attached. The guiding effect of the inclined surface 17 makes the hanging rod 2 slide in precisely along the convergence direction. The baffle 18 restricts lateral offset, and the fixing plate 19 suppresses structural deformation. The three work together to ensure that the attachment is completed in one go. Under the influence of wind and sand, the rigid structure without kinematic pairs still maintains geometric accuracy.

[0059] It should be noted that the baffle 18 is designed so that one side of the V-groove 3 maintains the lateral restriction of the hanging rod 2, while also having a certain opening to facilitate the passage of the grounding wire 13.

[0060] Optionally, an extension rod 26 is fixedly installed on the outer wall of the fixing plate 19, and a nut 25 is fixedly installed at the end of the extension rod 26 away from the fixing plate 19. A clamp 24 is sleeved on the surface of the nut 25.

[0061] The extension rod 26 extends the installation position of the V-groove 3 to the surface of the nut 25, and achieves quick adaptation with nuts of different diameters through the clamp 24.

[0062] It should be noted that the extension rod 26 can also be replaced by the bracket 28, which improves the adaptability to the conductor down conductor or horizontal conductor, and is especially suitable for vertical hanging points where space is limited and clamps cannot be installed.

[0063] Optionally, a finger 20 is provided inside the inclined surface 17. The upper end of the finger 20 is fixedly connected to the inclined surface 17, and the lower end is suspended and has elastic deformation capability.

[0064] In this embodiment, the contact finger 20 is bent under pressure when the hanging rod 2 is inserted, which increases the contact force and friction between the hanging rod 2 and the inclined surface 17, thereby enhancing the clamping stability of the hanging rod 2. At the same time, the orientation of the contact finger 20 provides reverse resistance when the hanging rod 2 moves upward, effectively preventing the hanging rod 2 from accidentally coming off due to vibration or wind swing.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An ultra-high voltage substation grounding line device suitable for unmanned aerial vehicle hanging, characterized in that: It includes a hanging ring (1), a hanging mechanism and a fixing mechanism; the hanging ring (1) is fixedly installed at the top of the hanging mechanism and a clamping component is installed at the bottom. The clamping component is used to firmly clamp the grounding wire (13) onto the hanging mechanism; the fixing mechanism is fixedly installed on the conductor (27) and has an inverted trapezoidal V-shaped convergent structure. The hanging mechanism uses the weight of the grounding wire (13) to clamp onto the inverted trapezoidal V-shaped convergent structure to form a grounding loop. The hanging mechanism includes a fixed rod (4) fixedly connected to the hanging ring (1) at the top, a fixed plate (10) is provided at the bottom of the fixed rod (4), and two hanging rods (2) are rotatably provided on both sides of the fixed plate (10) about the fixed rod (4) as the axis of symmetry through the lower fixed rotating shaft (11). The end of the hanging rod (2) away from the fixed plate (10) is connected to the adjustment component through the upper fixed rotating shaft (5). The adjustment component is provided on the fixed rod (4) between the fixed plate (10) and the hanging ring (1).

2. The device according to claim 1, characterized in that: The adjustment assembly includes a U-shaped groove (14) fixedly mounted on the fixed rod (4). Limiting slide rails are provided on both sides of the inner wall of the U-shaped groove (14). A slider is slidably mounted in the limiting slide rail. A spring (15) is connected between the slider and the bottom of the U-shaped groove (14). A sliding groove (9) is provided through the slider, and an adjusting clamp block is slidably inserted in the sliding groove (9). A knob (8) is provided in the adjusting clamp block and one end of a connecting rod (7) is rotatably provided. The other end of the connecting rod (7) is rotatably connected to the hanging rod (2) through the upper fixed rotating shaft (5). 3.The UHV substation grounding line device capable of being hung by a UAV according to claim 2, characterized in that: A torsion spring (6) is provided on the upper fixed rotating shaft (5). One end of the torsion spring (6) is connected to the hanging rod (2), and the other end is connected to the connecting rod (7).

4. The device according to claim 1, characterized in that: The two hanging rods (2) together with the fixing plate (10) form a V-shaped hanging piece. 5.The device for the EHV substation grounding line according to claim 1, characterized in that: A pressure plate (16) is provided at one end of the hanging rod (2) near the upper fixed rotating shaft (5), and the pressure plate (16) is L-shaped and rigidly connected to the hanging rod (2). 6.The device for the EHV substation grounding line according to claim 1, characterized in that: The clamping assembly includes a clamping plate fixed to the fixed plate (10) by fastening bolts (12), and a fixing hole (22) opened in the fixed plate (10). One end of a pull wire (21) is provided in the fixing hole (22), and the other end of the pull wire (21) is connected to a pull wire fixing section (23). The pull wire fixing section (23) is tied and fixed to the grounding wire (13). The clamping plate fixes and holds the end of the grounding wire (13) under the action of the fastening bolt (12).

7. The UAV-carryable EHV substation grounding line device according to any one of claims 1-6, characterized in that: The fixing mechanism includes a V-shaped groove (3) formed by two sets of inclined surfaces (17), baffles (18) and fixing plates (19). The two sets of inclined surfaces (17) form an inverted trapezoidal V-shaped convergent structure. The baffles (18) are respectively fixed on one side of the two sets of inclined surfaces (17), and the fixing plates (19) are vertically fixed on the other side of the two sets of inclined surfaces (17) to form rigid support for the inclined surfaces (17). 8.The UAV-hangable EHV substation grounding line device of claim 7, wherein: The outer side wall of the fixed plate (19) is fixedly provided with an extension rod (26), one end of the extension rod (26) away from the fixed plate (19) is fixedly provided with a pipe nipple (25), and the surface of the pipe nipple (25) is sleeved with a hoop (24). 9.The UAV-hangable EHV substation grounding line device of claim 7, wherein: The inclined surface (17) is provided with a contact finger (20), the upper end of the contact finger (20) is fixedly connected with the inclined surface (17), and the lower end is suspended and has an elastic deformation capacity.

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