Ground line hanger and conductor end assembly therefor

Abstract

The application relates to the technical field of grounding wire equipment of a power system, and provides a grounding wire suspension device and a conductor end assembly thereof, which comprises a fixing body, a suspension hook and a conductor end, the inner side of the suspension hook is provided with a limiting part and a guide piece, and the conductor end is provided with an elastic locking piece; the elastic locking piece is provided with an anti-falling end and a stress part, the anti-falling end is in abutment with the limiting part in a hanging state to limit the conductor end from falling out, and the anti-falling end is separated from the limiting part in response to the stress part being subjected to external clamping force; the guide piece is pivotally connected to the inner side of the suspension hook, and the conductor end pushes the guide piece to deflect and give way when moving upwards, and moves downwards along the guide piece to slide out of the suspension hook. The application realizes reliable mechanical anti-falling, convenient clamping unlocking and smooth guiding and picking under unmanned aerial vehicle operation, and improves the safety and success rate of unmanned installation and removal operation of grounding wires of an ultra-high voltage transformer substation.

Description

Technical Field

[0001] This application relates to the technical field of power system grounding wire equipment, specifically to a grounding wire suspension device and its conductor end assembly. Background Technology

[0002] Currently, in the maintenance work during power outages at ultra-high voltage and extra-high voltage substations, the connection and removal of grounding wires is a crucial step in ensuring the safety of workers. With the introduction of drone technology, using drones to replace manual labor for grounding wire connection and removal has become a development trend. However, existing grounding wire suspension devices are mostly designed for manual operation and have significant shortcomings when adapted to drone operations: on the one hand, they lack reliable mechanical anti-detachment locking mechanisms, and under wind, vibration, or drone operation disturbances, the conductor end is prone to accidentally detaching from the hook, leading to grounding protection failure; on the other hand, the unlocking and detachment structures of existing devices do not consider the operating characteristics of drone robotic arms, often resulting in unclear unlocking force transmission paths and rigid jamming between the conductor end and the inner wall of the hook during detachment, leading to a high drone detachment failure rate and seriously restricting the safety and efficiency of unmanned operations.

[0003] Therefore, there is an urgent need for a grounding wire suspension device and its conductor end components that can be adapted to the precise operation of drones, have reliable mechanical anti-detachment and smooth guiding and detachment functions. Summary of the Invention

[0004] To address the problems of poor reliability in preventing grounding wire suspension devices during drone operations and the tendency to jam during detachment, this application provides a grounding wire suspension device and its conductor end assembly to achieve reliable mechanical anti-detachment, convenient clamping and unlocking, and smooth guided detachment during drone operations.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A grounding wire suspension device and its conductor end assembly include a fixed body, a suspension hook, and a conductor end. The suspension hook is connected to the lower part of the fixed body, and the conductor end is hooked inside the suspension hook. A limiting part and a guide are provided on the inner side of the suspension hook, and an elastic locking part is provided on the conductor end. The elastic locking part has an anti-detachment end and a force-receiving part. When the conductor end is hooked inside the suspension hook, the anti-detachment end abuts against the limiting part to prevent the conductor end from detaching. In response to the force-receiving part being subjected to an external clamping force, the elastic locking part undergoes elastic deformation, causing the anti-detachment end to detach from the limiting part. The guide is pivotally connected to the inner side of the suspension hook. When the conductor end moves upward, the conductor end pushes against the guide to deflect and reposition. When the conductor end moves downward, the conductor end slides out of the suspension hook along the guide.

[0007] The above solution constructs a dual linkage mechanism by setting an elastic locking component with an anti-detachment end and a force-bearing part at the conductor end, and setting a limiting part and a pivot guide on the inner side of the suspension hook: In the hooked state, the anti-detachment end of the elastic locking component abuts against the limiting part to form a passive mechanical anti-detachment, effectively resisting accidental detachment caused by external disturbances; When detaching, the drone's robotic arm clamps the force-bearing part, causing the elastic locking component to deform elastically and actively release the anti-detachment limiting part. At the same time, the conductor end moves upward to push the guide to deflect and deflect, and moves downward to smoothly exit along the guide, avoiding rigid jamming, thereby achieving reliable anti-detachment and smooth detachment adapted to drone operations.

[0008] Optionally, the elastic locking member includes an elastic clamping arm, and the limiting part includes a blocking protrusion; the anti-disengagement end is disposed at the end of the elastic clamping arm, and the force-receiving part is disposed on the side wall of the elastic clamping arm; in response to the force-receiving part being subjected to an inward clamping force, the elastic clamping arm retracts inward, causing the anti-disengagement end to disengage from the blocking protrusion.

[0009] Optionally, the elastic clamping arm is a locking rod with a V-shaped bending structure. The locking rod includes two forked arms, the blocking protrusion is a ball fixedly disposed on the inner side of the lower end of the suspension hook, and the force-bearing part is a clamping part disposed on the outer side of the two forked arms. A spring II and a crossbar are provided between the two forked arms of the locking rod. The spring II is connected to the inner side of the two forked arms, and the crossbar passes laterally through the two forked arms. When the clamping part is subjected to an inward clamping force, the two forked arms retract relative to each other, so that the distance between the ends of the two forked arms is reduced to less than the distance between the two balls, thereby releasing the obstruction and limitation on the conductor end to come out upward.

[0010] Optionally, the guide is a guide plate, which is pivotally connected to the inside of the suspension hook via a rotating shaft A; the guide plate has an overlapping end that overlaps the inside of the suspension hook, and when the conductor end moves upward to push the guide plate, the overlapping end disengages from the inside of the suspension hook to deflect and reposition; when the conductor end moves downward, the conductor end slides out along the guide plate.

[0011] Optionally, the guide plate has a boat-shaped structure that is narrow at both ends and wide in the middle. Its first end is pivotally connected to the suspension hook through the rotating shaft A, and the second end is a free end that serves as the overlapping end and rests on the pointed hook inside the suspension hook. The outer edge of the conductor end is provided with a conductor end arc surface. When the conductor end moves upward, the conductor end arc surface touches the second end and lifts it upward, causing the second end to detach from the pointed hook. After the conductor end detaches, the guide plate rotates back to its original position under its own gravity, and the second end rests on the pointed hook again.

[0012] Optionally, the inner side of the suspension hook is provided with a hooking part, and the conductor end is provided with a limiting groove; when the conductor end is hooked in the suspension hook, the hooking part is inserted into the limiting groove to axially limit the conductor end.

[0013] Optionally, the hooking part is an integrally formed pointed hook on the inner side wall of the suspension hook, and the limiting groove is an annular groove formed on the lower end face of the conductor end disc-shaped part; the outer edge of the conductor end is provided with a conductor end arc surface, and the inner side of the hook arm of the suspension hook is provided with a suspension hook arc surface; during the process of the conductor end being pushed into the suspension hook, the conductor end arc surface first forms a sliding contact with the limiting part, and then forms a sliding fit with the suspension hook arc surface to open the suspension hook and guide the conductor end to slide in, until the pointed hook is engaged in the annular groove.

[0014] Optionally, the inner side of the suspension hook is provided with an elastic conductive contact, and the lower end of the conductor end is provided with a conductor end bottom surface; when the conductor end is hung in the suspension hook, the conductor end bottom surface is in abutting contact with the elastic conductive contact, and the elastic conductive contact undergoes elastic deformation under force, so as to form a conductive contact between the elastic conductive contact and the conductor end through its elastic restoring force.

[0015] Optionally, the suspension hook is composed of multiple individual suspension hooks, which are arranged circumferentially around the lower part of the fixed body. The top of each individual suspension hook is rotatably connected to the fixed body via a rotating shaft B. A spring I is provided at the hinge point between the fixed body and the individual suspension hook. The two ends of the spring I are respectively connected to the fixed body and the individual suspension hook, and are used to apply a biased tension to the individual suspension hook so that the individual suspension hook maintains an initial vertical downward posture when no external force is involved.

[0016] Optionally, an integrated module is detachably mounted on the cylindrical connecting portion at the lower end of the conductor; the integrated module includes: an anti-electromagnetic interference layer for shielding external electromagnetic fields from interfering with the internal electronic components of the module; an image acquisition unit for real-time acquisition of image and video information during the process of the conductor being hooked into or detached from the suspension hook; a drop detection unit with a built-in drop sensor for triggering an alarm signal when an abnormal drop is detected; a current detection unit with a built-in current sensor for detecting and recording current data in the grounding wire; and a low-power battery for providing independent power to the image acquisition unit, the drop detection unit, and the current detection unit.

[0017] Beneficial effects:

[0018] The grounding wire suspension device and its conductor end assembly provided in this application automatically form a mechanical anti-detachment barrier after the conductor end is hooked in place through the abutment cooperation between the elastic locking member and the limiting part. This anti-detachment state is maintained only by the geometric constraints between the structures and does not require continuous external force. Therefore, it can effectively resist accidental detachment caused by external factors such as strong winds, equipment vibrations, and drone operation disturbances, significantly improving the suspension reliability of the grounding wire under complex working conditions. At the same time, by coupling the anti-detachment release action with the clamping action of the drone's robotic arm, the elastic locking member undergoes directional elastic deformation when the force-bearing part is subjected to clamping force, and the anti-detachment end simultaneously disengages from the limiting part, realizing active and precise unlocking of the anti-detachment state and avoiding the operational failure problem caused by the ambiguous unlocking force transmission path in traditional structures. In addition, the guide member pivotally connected to the inside of the suspension hook is pushed and deflected when the conductor end moves upward and provides a sliding exit path when it moves downward, transforming the originally possible rigid collision and jamming into controlled guiding motion, greatly reducing the difficulty of attitude adjustment and the risk of mechanical impact during the drone retrieval process. The combined effect of the above three mechanisms fundamentally solves the technical problems of unreliable anti-detachment, difficult unlocking, and easy jamming of existing suspension devices in drone operation scenarios, ensuring the safety, convenience, and success rate of unmanned installation and removal of grounding wires in ultra-high voltage substations. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the suspension hook and conductor end assembly according to an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the conductor end locking rod and integrated module assembly structure according to an embodiment of this application;

[0021] Figure 3 This is a front view and a partial structural schematic diagram of the suspension hook assembly according to an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the conductor end assembly structure according to an embodiment of this application;

[0023] Figure 5 These are front and top views of the suspension hook assembly according to an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the process before the suspension hook and conductor end are suspended, according to an embodiment of this application;

[0025] Figure 7 This is a schematic diagram of the suspension process of the hook and conductor end in an embodiment of this application;

[0026] Figure 8 This is a schematic diagram of the process after the suspension hook and conductor end are suspended according to an embodiment of this application;

[0027] Figure 9This is a schematic diagram of the process before the suspension hook and conductor end are removed according to an embodiment of this application;

[0028] Figure 10 This is a schematic diagram of the process of removing the hook and conductor end in an embodiment of this application;

[0029] Figure 11 This is a schematic diagram of the process after the suspension hook and conductor end are removed according to an embodiment of this application.

[0030] Among them, 1-fixed body, 2-suspension hook, 3-rotation shaft A, 4-guide component, 5-spring I, 6-rotation shaft B, 7-pointed hook, 8-elastic conductive contact, 9-limiting part, 10-conductor end, 11-limiting groove, 12-conductor end arc surface, 13-conductor end bottom surface, 14-elastic locking component, 15-spring II, 16-crossbar, 17-clamping part, 18-integrated module, 19-adjustment component, 20-suspension hook arc surface. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0033] Example 1

[0034] like Figure 1 As shown in the figure, this embodiment provides a grounding wire suspension device and its conductor end assembly. The device mainly includes a fixed body 1, a suspension hook 2, and a conductor end 10. The suspension hook 2 is connected below the fixed body 1, and the conductor end 10 is hung inside the suspension hook 2. Specifically, the fixed body 1 serves as the supporting base for the entire device and is used for fixed connection with the conduit or conductor in the substation, while the suspension hook 2 serves as the carrier and locking carrier for the conductor end 10. Together, they constitute the basic structure of the grounding wire suspension end. It should be understood that although the figure shows the layout where the suspension hook 2 is located directly below the fixed body 1, in other embodiments, as long as the stable suspension of the conductor end 10 and subsequent linkage can be achieved, the relative positional relationship between the two can be adjusted according to the actual installation environment.

[0035] In this embodiment, a limiting part 9 and a guide member 4 are provided on the inner side of the suspension hook 2, and an elastic locking member 14 is provided on the conductor end 10. This layout forms the core linkage basis of the device, that is, by setting a fixed limiting and guiding structure on the suspension side and a deformable locking structure on the movable side, dynamic coordination between the two is achieved.

[0036] Regarding the anti-detachment and unlocking mechanism, the elastic locking member 14 has an anti-detachment end and a force-receiving part. When the conductor end 10 is hooked in the suspension hook 2, the anti-detachment end abuts against the limiting part 9 to prevent the conductor end 10 from detaching. In response to the force-receiving part being subjected to external clamping force, the elastic locking member 14 undergoes elastic deformation, causing the anti-detachment end to disengage from the limiting part 9. Specifically, this anti-detachment mechanism is a passive mechanical interlock, that is, in the natural hooking state without external force intervention, a physical barrier is formed by the geometric positional relationship between the anti-detachment end and the limiting part 9, effectively resisting the conductor end 10 from moving upward or falling off due to wind, vibration, or accidental collision. When it is necessary to remove it, an external device (such as a drone robotic arm) applies a specific clamping force to the force-receiving part, forcing the elastic locking member 14 to produce directional elastic deformation, thereby actively releasing the above geometric constraint. This design separates the "anti-detachment retention" and "unlocking operation" in terms of mechanical path, ensuring absolute safety under normal conditions and providing a clear mechanical interface for the precise operation of automated equipment. It should be understood that the specific form of the elastic locking element 14 is not limited to the style shown in the figure. Any structure with elastic reset capability and capable of generating avoidance action in response to clamping force can be used as an equivalent replacement.

[0037] Regarding the guidance and detachment mechanism, the guide member 4 is pivotally connected to the inside of the suspension hook 2. When the conductor end 10 moves upward, it pushes against the guide member 4 to deflect and reposition itself. When the conductor end 10 moves downward, it slides out of the suspension hook 2 along the guide member 4. Specifically, the guide member 4 obtains rotational freedom relative to the suspension hook 2 through a pivoting connection, allowing it to adapt to the movement requirements of the conductor end 10 at different stages. During the detachment process, when the conductor end 10 is controlled to move upward, its own structure will touch and push against the guide member 4, causing it to deflect around the pivot point, thereby automatically avoiding the upward path of the conductor end 10 and avoiding the rigid interference and jamming problems common in traditional fixed structures. Subsequently, when the conductor end 10 is lowered and detached, the guide member 4 provides it with a continuous sliding guide surface, ensuring that the conductor end 10 can slide out smoothly and accurately from inside the suspension hook 2, reducing the stringent requirements for the attitude control accuracy of external equipment. This adaptive guidance design based on motion trends significantly improves the fault tolerance and success rate of UAV operations. Similarly, the specific shape and pivot position of the guide 4 can be adaptively adjusted according to the internal space of the suspension hook 2, as long as the functions of "moving upward to make way" and "moving downward to guide" can be achieved.

[0038] Example 2

[0039] Based on Embodiment 1, this embodiment further refines the specific cooperation structure between the elastic locking member and the limiting part. The elastic locking member 14 includes an elastic clamping arm, and the limiting part 9 includes a blocking protrusion. Specifically, the elastic clamping arm constitutes the main load-bearing frame of the elastic locking member 14, possessing directional elastic deformation capability, while the blocking protrusion serves as a fixed interference point on the inner side of the suspension hook 2. The two achieve the maintenance and release of the anti-disengagement state through relative changes in their geometric positions. The anti-disengagement end is located at the end of the elastic clamping arm, and the force-bearing part is located on the side wall of the elastic clamping arm. This layout clearly divides the functional areas, with the end focused on interlocking with the blocking protrusion, and the side wall focused on receiving external operating forces, avoiding stress concentration or action interference caused by a single part bearing multiple functions. In response to the force-bearing part receiving an inward clamping force, the elastic clamping arm retracts inward, causing the anti-disengagement end to disengage from the blocking protrusion. This process establishes a clear mechanical transmission path: the external clamping force, after acting on the force-bearing part of the side wall, is transformed into the overall inward deformation of the elastic clamping arm, which in turn causes the end anti-disengagement end to displace away from the blocking protrusion, thereby achieving unlocking. It should be understood that the specific shape of the elastic clamping arm can be sheet-like, rod-like, or other structures with elastic recovery capabilities, and the blocking protrusion can also be in the form of a boss, stop, etc., as long as it can achieve the function of being clamped inward and releasing the obstruction.

[0040] As a preferred implementation, the elastic clamping arm is a locking rod with a V-shaped bending structure. The locking rod includes two forked arms, the blocking protrusion is a ball 9 fixedly installed on the inner side of the lower end of the suspension hook 2, and the force-bearing part is the clamping part 17 located on the outer side of the two forked arms. Figure 2 and Figure 3 As shown, the V-shaped structure naturally possesses radial contraction motion characteristics. The two forks, with their bottom connection points as fulcrums, create a lever amplification effect, allowing a small input displacement at the clamping part 17 to be converted into a larger opening and closing stroke at the fork end, which is beneficial for adapting to the operational tolerances of the drone robotic arm. The sphere 9 has a smooth surface and continuous contour, providing smooth guidance for the locking rod during the attachment process and forming a stable point or line contact with the fork end in the anti-detachment state, reducing the risk of anti-detachment failure due to edge wear. The clamping part 17 is located on the lower outer side of the two forks. This position is far from the pivot fulcrum and has a longer lever arm, which can effectively reduce the clamping force threshold required by the drone robotic arm. At the same time, this area can be equipped with anti-slip textures or thickened treatment as needed to improve the reliability of the clamping operation.

[0041] To ensure the stability of the locking lever's movement and the reliability of its reset, a spring II 15 and a crossbar 16 are provided between the two fork arms of the locking lever. The spring II 15 is connected to the inner side of the two fork arms, and the crossbar 16 passes laterally through the two fork arms. Specifically, the spring II 15 provides a continuous outward spreading force to the two fork arms, ensuring that the locking lever is always in the open, anti-disengagement position when there is no external clamping force, preventing accidental retraction due to vibration or gravity. The crossbar 16 not only serves as the mounting base and guide support for the spring II 15, preventing lateral buckling instability of the spring during repeated compression, but also limits the maximum opening angle of the two fork arms, avoiding plastic deformation due to excessive outward expansion or interference with the inner wall of the suspension hook 2. When the clamping part 17 is subjected to an inward clamping force, the two fork arms retract relative to each other, reducing the distance between the ends of the two fork arms to less than the distance between the two spheres 9, thereby releasing the obstruction limiting the upward disengagement of the conductor end 10. This dimensional relationship is the geometric prerequisite for the unlocking action; that is, the conductor end 10 only gains an upward free passage when the distance between the ends of the fork arms is strictly less than the distance between the two spheres 9. This design quantifies the abstract "unlocking" action into measurable and verifiable dimensional parameters, providing a clear objective benchmark for product manufacturing inspection and infringement comparison. It should be noted that although this embodiment shows the layout of spring II 15 built into the two fork arms, in other embodiments, the spring can also be a torsion spring sleeved at the root of the fork arm, or a tension spring connected to the outside of the fork arm, as long as it can provide the elastic force to reset the fork arm.

[0042] Example 3

[0043] Based on Embodiment 1, this embodiment further refines the specific structure of the guide component and its clearance mechanism. The guide component 4 is a guide plate, which is pivotally connected to the inner side of the suspension hook 2 via a rotating shaft A3. Specifically, as... Figure 3As shown, the rotation axis A3 forms the pivot point of the guide plate, allowing it to swing freely around the axis within the internal space of the suspension hook 2. The guide plate has an overlapping end that rests on the inner side of the suspension hook 2. When the conductor end 10 moves upward and pushes the guide plate, the overlapping end disengages from the inner side of the suspension hook 2 to deflect and reposition; when the conductor end 10 moves downward, it slides out along the guide plate. This pivotal engagement transforms the guide plate from a fixed, rigid barrier into a dynamically responsive movable component. When the conductor end 10 is controlled to move upward in preparation for removal, its upward trend directly acts on the guide plate, forcing the overlapping end to deflect around the rotation axis A3, thereby automatically creating clearance space and eliminating the risk of rigid jamming caused by positional interference in traditional structures. During the lowering and disengagement phase, the guide plate transforms into a continuous sliding guide rail, providing a definite exit path for the conductor end 10, significantly reducing the accuracy threshold for UAV attitude control. It should be understood that the pivot position of the guide plate is not limited to the middle of the suspension hook shown in the figure. As long as the functional requirements of moving upward to make way and moving downward to guide can be taken into account, its installation point can be adaptively adjusted according to the internal space layout of the suspension hook.

[0044] As a preferred specific implementation, the guide plate has a boat-shaped sheet structure that is narrow at both ends and wide in the middle. Its first end is pivotally connected to the suspension hook 2 via a rotating shaft A3, and its second end is a free end that overlaps on the pointed hook 7 inside the suspension hook 2. Figures 9 to 11 It can be seen that the boat-shaped profile design is not merely for aesthetic considerations, but rather a comprehensive optimization based on mechanical transmission efficiency and spatial adaptability. The narrow structure at both ends reduces the sweeping volume of the guide plate during pivoting, avoiding motion interference with the inner wall of the suspension hook or other components; the wide structure in the middle provides a sufficiently large support area, ensuring that the conductor end 10 always receives stable support during sliding, preventing local stress concentration or slippage due to insufficient contact area. The second end rests on the hook 7 as a free end, utilizing the existing structure of the hook 7 as a natural limiting reference, which simplifies the number of parts and ensures the certainty of the guide plate's position in the non-working state.

[0045] Regarding the specific mechanism of the yielding trigger, the outer edge of the conductor end 10 is provided with a conductor end arc surface 12. When the conductor end 10 moves upward, the conductor end arc surface 12 touches the second end and lifts it upward, causing the second end to disengage from the hook 7. This design cleverly transforms the vertical linear motion of the conductor end 10 into the rotational avoidance motion of the guide plate. The curved profile of the conductor end arc surface 12 makes the lifting process smooth and continuous, avoiding the instantaneous impact load caused by the impact of sharp corners, and effectively protecting the connection strength between the guide plate and the rotating shaft A3. At the same time, the arc surface has a natural self-centering effect. Even if there is a slight horizontal deviation when the UAV lifts the conductor end 10, the arc surface can still smoothly wedge into the bottom of the guide plate to complete the lifting, greatly improving the fault tolerance of the picking operation.

[0046] It is particularly important to emphasize that after conductor end 10 detaches, the guide plate rotates back to its original position under its own gravity, and the second end re-attaches to the hook 7. Unlike the elastic locking component in Embodiment 2 that relies on spring II 15 to provide the reset force, the guide plate in this embodiment completely eliminates the need for an additional elastic reset element. This pure gravity reset mechanism has multiple technical advantages: First, it completely eliminates potential failure points such as spring fatigue failure, corrosion jamming, or elastic coefficient drift due to low temperature, significantly improving the long-term reliability of the device in harsh outdoor environments; second, it reduces the number of parts and assembly steps, lowering manufacturing costs and maintenance complexity; third, the gravity reset force is constant and always vertically downward, unaffected by installation angle deviations or material aging, ensuring that the guide plate accurately returns to its initial overlapping position each time. It should be understood that although this embodiment demonstrates the combination of a boat-shaped sheet structure and gravity reset, in other embodiments, if the application scenario has special requirements for the reset speed, elastic elements such as torsion springs can be used to accelerate the reset, or other geometric shapes with similar yielding functions can be used to replace the boat-shaped structure, as long as the core functions of upward movement to avoid and downward movement to guide can be achieved.

[0047] Example 4

[0048] Based on embodiments 1 to 3, this embodiment further refines the engagement and limiting structure and its insertion mechanism between the conductor end and the suspension hook. It should be noted that the engagement and limiting mechanism involved in this embodiment is functionally independent and complementary to the anti-detachment locking mechanism in the aforementioned embodiments: the engagement and limiting mechanism is mainly used to determine the axial position of the conductor end 10 within the suspension hook 2, ensuring the accuracy of electrical contact and mechanical load-bearing; while the anti-detachment locking mechanism is used to prevent the conductor end 10 from accidentally detaching due to external disturbances after engagement. The suspension hook 2 has an engagement part on its inner side, and the conductor end 10 has a limiting groove 11. Specifically, the engagement part and the limiting groove 11 constitute an axial positioning pair. When the conductor end 10 is engaged within the suspension hook 2, the engagement part inserts into the limiting groove 11 to axially limit the conductor end 10. This axial limiting ensures that the conductor end 10 will not move vertically or rotate in the suspended state, providing a stable position reference for subsequent electrical conduction. It should be understood that the specific form of the hook and the limiting groove 11 is not limited to that shown in this embodiment. For example, the hook can also be a boss, a pin, etc., and the limiting groove 11 can also be a corresponding groove, a hole, etc., as long as it can achieve the axial positioning function.

[0049] As a preferred implementation, the hooking part is an integrally formed pointed hook 7 on the inner side wall of the suspension hook 2, and the limiting groove 11 is an annular groove formed on the lower end face of the disc-shaped part of the conductor end 10. Combined with... Figures 6 to 8As shown, the pointed hook 7 and the suspension hook 2 are integrally formed, possessing high structural strength and shear resistance, and can reliably withstand the axial tensile force caused by the weight of the grounding wire and wind load. The annular groove 11 is continuously arranged circumferentially along the conductor end 10, so that the conductor end 10 does not need to be aligned at a specific angle when hooked in, significantly reducing the attitude accuracy requirements of UAV operation and improving the hooking success rate. The geometric interlock formed after the pointed hook 7 is engaged in the annular groove 11 can effectively limit the displacement of the conductor end 10 along the opening direction of the suspension hook 2, ensuring that it maintains a stable suspension attitude under various working conditions.

[0050] To ensure smooth connection and component safety, the outer edge of the conductor end 10 is provided with a conductor end arc surface 12, and the inner side of the hook arm of the suspension hook 2 is provided with a suspension hook arc surface 20. During the process of pushing the conductor end 10 into the suspension hook 2, the connection action follows a specific timing logic: the conductor end arc surface 12 first forms a sliding contact with the limiting part 9, and then forms a sliding engagement with the suspension hook arc surface 20 to open the suspension hook 2 and guide the conductor end 10 to slide in until the pointed hook 7 is engaged in the annular groove. Specifically, this process embodies the design concept of flexible insertion. When the drone lifts the conductor end 10 upwards and pushes it in, the conductor end arc surface 12 first touches the limiting part 9 (i.e., the sphere 9 in the aforementioned embodiment), using the guiding effect of the sphere to initially correct the center position of the conductor end 10; as the pushing force continues to increase, the conductor end arc surface 12 and the suspension hook arc surface 20 engage in a wedge-shaped engagement, converting the vertically upward pushing force into a radial component force that elastically opens the suspension hook 2 outwards. Under elastic deformation, the hook 2 gradually makes room for the internal space, guiding the conductor end 10 to slide in smoothly until the hook 7 is aligned and pops into the annular slot 11, completing the hooking and locking.

[0051] This elastic opening mechanism based on arc surface cooperation has significant technical value. First, the entire attachment process relies on the elastic deformation of the hook 2 itself to achieve adaptive insertion, eliminating the need for additional forced flaring tools or complex alignment mechanisms, thus simplifying the design complexity of the UAV end effector. Second, the sliding friction between the arc surfaces replaces rigid collision and forced compression, effectively preventing mechanical damage to the surface plating of the conductor end 10 or the inner wall of the hook 2 during attachment, extending the equipment's service life. Third, the elastic opening force provides natural tactile feedback; when the pointed hook 7 engages with the annular groove 11, the vibration generated by the rebound of the hook 2 can be transmitted to the UAV end via the grounding wire, assisting in determining whether the attachment is in place. It should be understood that although this embodiment demonstrates the preferred method of the arc surface 12 of the conductor end cooperating with the arc surface 20 of the hook for opening, in other embodiments, a similar elastic insertion function can be achieved by setting an elastic tongue on the hook 2 or a guide slope on the conductor end 10, as long as forced assembly is avoided and smooth attachment is ensured.

[0052] Example 5

[0053] Based on the foregoing embodiments, this embodiment further describes the electrical conduction structure of the device and the reset layout of the suspension hook. An elastic conductive contact 8 is provided on the inner side of the suspension hook 2, and a conductor end bottom surface 13 is provided at the lower end of the conductor end 10. Specifically, as... Figure 1 and Figure 3 As shown, the elastic conductive contact 8 serves as a crucial interface for current transmission. Its installation position corresponds to the bottom surface 13 of the conductor end, ensuring accurate alignment after the conductor end 10 is properly attached. With the conductor end 10 attached to the hook 2, the bottom surface 13 of the conductor end and the elastic conductive contact 8 press against each other. The elastic conductive contact 8 undergoes elastic deformation under pressure, forming a conductive contact with the conductor end 10 through its elastic restoring force. This pressure-based contact mechanism, based on elastic deformation, effectively compensates for manufacturing tolerances, assembly errors, and wear gaps generated during long-term operation, maintaining a stable contact pressure, thereby reducing contact resistance and preventing overheating or arcing due to poor contact. It should be understood that although the figure shows the elastic conductive contact 8 as a sheet structure, in other embodiments, it can also be in the form of a spring pin, conductive brush, or multi-finger spring, as long as it can provide continuous elastic pressure to ensure reliable conduction.

[0054] Regarding the support and reset structure of the suspension hook, the suspension hook 2 consists of multiple individual suspension hooks, which are arranged circumferentially around the lower part of the fixed body 1. Specifically, this circumferential arrangement forms a cage-like or frame-like accommodating space, providing multi-dimensional radial constraints for the conductor end 10 to prevent excessive horizontal swaying, while also ensuring uniform force distribution on each individual suspension hook to avoid unilateral overload. The top of each individual suspension hook is rotatably connected to the fixed body 1 via a rotating shaft B6, giving each individual suspension hook an independent degree of freedom to accommodate the elastic expansion requirements when the conductor end 10 is pushed in. A spring I5 is provided at the hinge point between the fixed body 1 and the individual suspension hook. The two ends of the spring I5 are connected to the fixed body 1 and the individual suspension hook, respectively, to apply a biased tensile force to the individual suspension hook, ensuring that the individual suspension hook maintains its initial vertical downward posture when no external force intervenes.

[0055] It is particularly important to note that spring I5 is in its free length state when the single suspension hook is in its initial vertical downward posture. This means that spring I5 has not undergone elastic deformation and does not store elastic potential energy. This design has significant technical implications: First, it avoids stress relaxation and fatigue failure caused by the spring being in a pre-tensioned state for a long time, significantly extending the service life of the elastic element. Second, it eliminates the additional resistance of the initial pre-tension force to the UAV attachment operation, making the process of pushing the conductor end 10 into the suspension hook 2 easier and smoother, reducing the load requirements of the UAV's power system. Third, the free length state provides a definite mechanical zero-position reference for the suspension hook 2, which is beneficial to improving the position repeatability accuracy of multiple attachment operations. It should be understood that although this embodiment preferably uses a tension spring as the reset element, in other embodiments, a torsion spring, compression spring, or elastic rubber component can also be used to provide bias force, or gravity self-reset combined with a limiting stop can be used to maintain the initial posture, as long as it can ensure that the suspension hook 2 is stably maintained in the vertical working position without external force.

[0056] Example 6

[0057] Based on the foregoing embodiments, this embodiment further describes the intelligent monitoring function of the device. An integrated module 18 is detachably mounted on the cylindrical connecting portion at the lower end of the conductor end 10. Specifically, as... Figure 2 As shown, the integrated module 18 is fixed to the outer periphery or end face of the cylindrical connecting part at the bottom of the conductor end 10 through threaded connection, snap-fit, or magnetic adsorption. This detachable connection method makes the integrated module 18 a functional component independent of the core mechanical connection structure. When the electronic components inside the module fail, the battery is depleted, or an upgrade is needed, maintenance personnel do not need to replace the entire conductor end 10 or the grounding wire body; they only need to disassemble and install the integrated module 18 to complete the maintenance, significantly reducing the maintenance cost and spare parts pressure throughout the entire life cycle. At the same time, the modular design also gives the device flexible functional configuration capabilities. For example, in simple scenarios where only mechanical connection is required, this module can be omitted, while in high-requirement scenarios requiring full-process digital monitoring, it can be quickly added, improving the product's environmental adaptability.

[0058] The internal functional configuration of the integrated module 18 mainly includes an anti-electromagnetic interference layer, an image acquisition unit, a drop detection unit, a current detection unit, and a low-power battery. Specifically, the anti-electromagnetic interference layer is wrapped inside the module housing or on the surface of the circuit board to shield the internal precision electronic components from the extremely strong power frequency electric and magnetic fields and transient electromagnetic pulses generated by switching operations within the ultra-high voltage substation, ensuring the accuracy and stability of data acquisition and signal processing. The image acquisition unit has a built-in miniature camera to acquire real-time images and video information during the process of the conductor end 10 being engaged or disengaged from the suspension hook 2. This not only provides visual feedback to the UAV flight control system to assist in precise positioning but also preserves objective video evidence for post-operation quality traceability and safety auditing. The drop detection unit has a built-in accelerometer or gyroscope drop sensor to trigger an alarm signal when an abnormal drop, severe impact, or abnormal attitude rollover is detected in the integrated module 18 or the conductor end 10, preventing equipment damage or loss from going undetected. The current detection unit has a built-in Hall sensor or Rogowski coil current sensor to detect and record the current data in the grounding wire, thereby verifying whether the grounding loop is truly conductive, whether the contact resistance is within a safe range, and whether there is any abnormal induced current or leakage current, upgrading the traditional "physical connection" to "electrically perceptible" intelligent grounding.

[0059] It is particularly important to emphasize that the low-power battery provides independent power to the image acquisition unit, drop detection unit, and current detection unit. This independent power supply architecture has multiple technical advantages: First, it completely cuts off the electrical coupling path between the intelligent module and the high-voltage grounding wire, avoiding the risk of the grounding wire becoming energized or introducing additional fault points due to internal short circuits or insulation failures, thus ensuring inherent safety; Second, it eliminates the dependence on the UAV's onboard power supply, allowing the integrated module 18 to continue recording current data or maintaining drop monitoring even after being disconnected from the UAV, achieving uninterrupted perception throughout the entire operation; Third, independent power management allows the module to adopt an ultra-low-power sleep-wake strategy, activating high-energy-consuming units only when the hooking action is triggered or during periodic inspections, significantly extending the continuous working time after a single charge. It should be understood that although this embodiment lists the above four functional units, in other embodiments, the integrated module 18 may also include only some of these units according to actual needs, or add other sensing units such as temperature monitoring and GPS positioning, as long as it maintains a modular architecture that allows for detachable installation and independent power supply, all of which fall within the scope of protection of this application.

[0060] Example 7

[0061] Based on the detailed descriptions of the various components and their static relationships in Examples 1 to 6 above, this embodiment further applies the aforementioned structural features to the actual operational scenario of attaching and detaching the grounding wire of a UAV, in order to verify the coherence, reliability, and practicality of the entire technical solution during dynamic execution. It should be understood that this embodiment aims to demonstrate the timing of coordinated actions and the path of force transmission between components through a complete operational process, and is not a repetition of the aforementioned structural features, nor does it introduce any new structures or parameters not described in the previous embodiments.

[0062] During the splicing operation phase, such as Figures 6 to 8 As shown, the drone lifts the conductor end 10 and pushes it vertically upward into the suspension hook 2. Specifically, when the conductor end 10 approaches the opening of the suspension hook 2, its outer edge arc surface 12 first forms a sliding contact with the limiting part 9 (i.e., the sphere) on the inner side of the lower end of the suspension hook 2. The self-centering effect of the sphere is used to initially correct the center position of the conductor end 10 and compensate for the slight attitude deviation when the drone hovers. As the pushing force continues to increase, the conductor end arc surface 12 then forms a wedge-shaped engagement with the suspension hook arc surface 20 on the inner side of the hook arm of the suspension hook 2, converting the vertical upward pushing force into a radial component force that causes the single suspension hook 2 to elastically open outward around the rotation axis B6. During this process, the spring I5 is gradually stretched from its free length state to store elastic potential energy, providing a reset driving force for subsequent locking. When the conductor end 10 continues to move upward to the predetermined depth, the hook 7 automatically springs into the annular groove 11 on the lower end face of the disc-shaped part of the conductor end 10 under the action of the restoring force of the spring I5, completing the axial positioning. Simultaneously, the two forked arms of the elastic locking member 14 (i.e., the V-shaped locking rod) fixed to the lower cylindrical connecting part of the conductor end 10 automatically open outward under the spreading force of the spring II 15 after passing the sphere 9, with the anti-detachment end at its end abutting against the bottom of the sphere 9, forming a passive mechanical anti-detachment barrier. In addition, the bottom surface 13 of the conductor end synchronously presses against the elastic conductive contact 8 on the inner side of the suspension hook 2, establishing a stable electrical conduction circuit by relying on the elastic deformation of the contact. Thus, the hooking action completes five sub-processes in a single continuous push-in operation: insertion correction, elastic spreading, axial limiting, anti-detachment locking, and electrical connection. No additional alignment or locking commands are required from the UAV, significantly reducing the complexity and risk of failure in aerial operations.

[0063] During the picking phase, such as Figures 9 to 11As shown, the drone's robotic arm first precisely clamps the clamping portion 17 on the outer side of the two forks of the elastic locking member 14, applying an inward clamping force. This clamping force overcomes the spreading force of the spring II 15, causing the two forks to close relative to each other, reducing the distance between their anti-detachment ends to less than the distance between the two spheres 9, thereby actively releasing the obstruction limit on the upward movement of the conductor end 10. After unlocking, the drone vertically lifts the conductor end 10. At this time, the arc surface 12 of the conductor end touches and lifts the guide member 4 (i.e., the boat-shaped guide plate) pivotally connected to the inner side of the suspension hook 2, causing it to deflect around the rotation axis A3. The overlapping end disengages from the pointed hook 7, automatically creating clearance space and avoiding the upward jamming problem common in traditional rigid structures. Subsequently, the drone controls the conductor end 10 to move downward. The arc surface 12 of the conductor end smoothly exits along the deflected surface of the guide member 4. During this process, the guide member 4 acts as a continuous sliding guide rail, effectively constraining the horizontal drift of the conductor end 10 and reducing the stringent requirements for the accuracy of the drone's descent trajectory. Once the conductor end 10 is completely detached from the suspension hook 2, the guide component 4 automatically rotates and resets under its own gravity, with its overlapping end reattached to the pointed hook 7, returning to its initial standby state. The entire detachment process seamlessly connects the three actions of unlocking, yielding, and guiding, relying entirely on the inherent linkage logic of the mechanical structure without the need for external sensor feedback or complex algorithm intervention, ensuring operational certainty under harsh conditions such as strong electromagnetic interference and communication delays.

[0064] Dynamic verification through the above-mentioned complete operational scenario reveals that the grounding wire suspension device and its conductor end components provided in this application do not exist in isolation. Instead, they form a tightly coupled temporal coordination and mechanical transmission chain in the two core operational processes of attachment and detachment. During attachment, the "arc-surface opening and introduction" creates spatial conditions for "sharp hook slot limiting," and "limiting in place" triggers the synchronous establishment of "locking and anti-detachment" and "conductive contact." During detachment, "clamping and unlocking" is a prerequisite for "lifting and yielding," and "lifting and yielding" provides a guiding path for "lowering and sliding out." This interlocking dynamic collaborative mechanism fundamentally solves the three major pain points of existing technologies: unreliable anti-detachment, difficult unlocking, and easy jamming during detachment. This fully demonstrates the engineering feasibility and application value of the technical solution in the unmanned operation scenario of UAVs in ultra-high voltage substations. It should be understood that although this embodiment is illustrated using a specific UAV operation process as an example, the above dynamic execution chain is also applicable in other automated or semi-automated operation scenarios as long as the same mechanical input and motion constraints are followed, and all fall within the protection scope of this application.

[0065] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A grounding wire suspension device and its conductor end assembly, comprising a fixed body (1), a suspension hook (2), and a conductor end (10), wherein the suspension hook (2) is connected below the fixed body (1), and the conductor end (10) is hooked inside the suspension hook (2); characterized in that: The inner side of the suspension hook (2) is provided with a limiting part (9) and a guide (4), and the conductor end (10) is provided with an elastic locking part (14). The elastic locking member (14) has an anti-detachment end and a force-receiving part. When the conductor end (10) is hooked in the suspension hook (2), the anti-detachment end abuts against the limiting part (9) to restrict the conductor end (10) from detaching. In response to the force-receiving part being subjected to an external clamping force, the elastic locking member (14) undergoes elastic deformation, causing the anti-detachment end to detach from the limiting part (9). The guide (4) is pivotally connected to the inside of the suspension hook (2). When the conductor end (10) moves upward, the conductor end (10) pushes against the guide (4) to deflect and reposition. When the conductor end (10) moves downward, the conductor end (10) slides out of the suspension hook (2) along the guide (4).

2. The grounding wire suspension device and its conductor end assembly according to claim 1, characterized in that, The elastic locking member (14) includes an elastic clamping arm, and the limiting part (9) includes a blocking protrusion; The anti-detachment end is disposed at the end of the elastic clamping arm, and the force-receiving part is disposed on the side wall of the elastic clamping arm; In response to the force-bearing part being subjected to an inward clamping force, the elastic clamping arm retracts inward, causing the anti-disengagement end to detach from the blocking protrusion.

3. The grounding wire suspension device and its conductor end assembly according to claim 2, characterized in that, The elastic clamping arm is a locking rod with a V-shaped bending structure. The locking rod includes two forks. The blocking protrusion is a ball (9) fixedly installed on the inner side of the lower end of the suspension hook (2). The force-bearing part is the clamping part (17) installed on the outer side of the two forks. A spring II (15) and a crossbar (16) are provided between the two forks of the locking rod. The spring II (15) is connected to the inner side of the two forks, and the crossbar (16) passes through the two forks laterally. When the clamping part (17) is subjected to an inward clamping force, the two forks retract relative to each other, reducing the distance between the ends of the two forks to less than the distance between the two spheres (9), thereby releasing the obstruction and limitation on the conductor end (10) from moving upward.

4. The grounding wire suspension device and its conductor end assembly according to claim 1, characterized in that, The guide member (4) is a guide piece, which is pivotally connected to the inside of the suspension hook (2) via a rotating shaft A (3); The guide plate has an overlapping end that overlaps inside the suspension hook (2). When the conductor end (10) moves upward and pushes the guide plate, the overlapping end disengages from the inside of the suspension hook (2) to deflect and reposition. When the conductor end (10) moves downward, the conductor end (10) slides out along the guide plate.

5. The grounding wire suspension device and its conductor end assembly according to claim 4, characterized in that, The guide plate has a boat-shaped plate structure that is narrow at both ends and wide in the middle. Its first end is pivotally connected to the suspension hook (2) through the rotating shaft A (3), and the second end is a free end and is placed on the pointed hook (7) on the inner side of the suspension hook (2) as the overlapping end. The outer edge of the conductor end (10) is provided with a conductor end arc surface (12). When the conductor end (10) moves upward, the conductor end arc surface (12) touches the second end and lifts it upward, so that the second end is disengaged from the hook (7). After the conductor end (10) is disengaged, the guide plate rotates back to its original position under its own gravity, and the second end is placed back on the hook (7).

6. The grounding wire suspension device and its conductor end assembly according to claim 1, characterized in that, The inner side of the suspension hook (2) is provided with a hanging part, and the conductor end (10) is provided with a limiting groove (11). With the conductor end (10) hooked in the suspension hook (2), the hook part is inserted into the limiting groove (11) to axially limit the conductor end (10).

7. The grounding wire suspension device and its conductor end assembly according to claim 6, characterized in that, The hook part is a pointed hook (7) integrally set on the inner side wall of the suspension hook (2), and the limiting groove (11) is an annular groove opened on the lower end face of the disc-shaped part of the conductor end (10). The outer edge of the conductor end (10) is provided with a conductor end arc surface (12), and the inner side of the hook arm of the suspension hook (2) is provided with a suspension hook arc surface (20). During the process of pushing the conductor end (10) into the suspension hook (2), the conductor end arc surface (12) first forms a sliding contact with the limiting part (9), and then forms a sliding fit with the suspension hook arc surface (20) to open the suspension hook (2) and guide the conductor end (10) to slide in until the pointed hook (7) is inserted into the annular groove.

8. The grounding wire suspension device and its conductor end assembly according to claim 1, characterized in that, The inner side of the suspension hook (2) is provided with an elastic conductive contact (8), and the lower end of the conductor end (10) is provided with a conductor end bottom surface (13). When the conductor end (10) is attached to the hook (2), the bottom surface (13) of the conductor end is in contact with the elastic conductive contact (8). The elastic conductive contact (8) undergoes elastic deformation under force, so that the elastic conductive contact (8) and the conductor end (10) form a conductive contact through its elastic restoring force.

9. The grounding wire suspension device and its conductor end assembly according to claim 1, characterized in that, The suspension hook (2) is composed of multiple individual suspension hooks, which are arranged circumferentially around the lower part of the fixed body (1). The top of the single suspension hook is rotatably connected to the fixed body (1) via a rotating shaft B (6). A spring I (5) is provided at the hinge of the fixed body (1) and the single suspension hook. The two ends of the spring I (5) are respectively connected to the fixed body (1) and the single suspension hook, and are used to apply biased tension to the single suspension hook so that the single suspension hook maintains the initial vertical downward posture when no external force intervenes.

10. The grounding wire suspension device and its conductor end assembly according to claim 1, characterized in that, An integrated module (18) is detachably mounted on the cylindrical connecting part at the lower end of the conductor end (10). The integrated module (18) includes: An anti-electromagnetic interference layer is used to shield external electromagnetic fields from interfering with the internal electronic components of the module. The image acquisition unit is used to acquire images and video information in real time during the process of the conductor end (10) being hooked into or detached from the suspension hook (2); The drop detection unit has a built-in drop sensor to trigger an alarm signal when an abnormal drop is detected. The current detection unit has a built-in current sensor for detecting and recording the current data in the grounding wire. A low-power battery is used to provide independent power to the image acquisition unit, the drop detection unit, and the current detection unit.

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