An unmanned aerial vehicle hanging line device with mechanical limiting and remote unlocking

Abstract

The application discloses a kind of unmanned plane hanging wire device with mechanical limiting and remote unlocking, including connecting assembly, operation point hook, ground wire traction assembly and ground wire self-locking assembly, the upper end of the connecting assembly is used to connect unmanned plane, the lower end of the connecting assembly is detachably connected with the operation point hook, the ground wire self-locking assembly is set to the lower end of the operation point hook, one end of the ground wire traction assembly is detachably connected with the end of ground wire after passing through the ground wire self-locking assembly, ground wire hanging and remote locking and unlocking operation are completed by ground traction cable bundle, to solve the problems that unmanned plane directly mounts heavy ground wire in prior art, it is difficult to operate, load pressure is big, safety risk is high, remote recovery is impossible, etc., realize whole ground control, avoid high-altitude operation, improve operation safety and efficiency.The unmanned plane hanging wire device with mechanical limiting and remote unlocking provided by the application has the effect of easy operation and avoiding high-altitude operation.

Description

Technical Field

[0001] This invention relates to the field of high-voltage electrical construction technology, and in particular to a drone-mounted wire-hanging device with mechanical limit and remote unlocking. Background Technology

[0002] In maintenance work at ultra-high voltage (such as 500kV) substations, grounding wires need to be installed on the de-energized busbars or conductors to ensure work safety. The traditional method involves manually climbing the tower and using an insulated operating rod to attach the grounding wire hook to the live conductor. This method carries high risks such as falls from heights and electric shock from induced currents, and is also inefficient and physically demanding.

[0003] In recent years, attempts have emerged to use multi-rotor drones for grounding wire attachment. Current technology involves drones carrying the complete ground wire (typically over 40 meters in length and weighing over 20 kg) directly to the work site for attachment. This method places extremely high demands on the drone's payload capacity and endurance, requiring customized heavy-duty drones, resulting in high costs. Furthermore, the swaying of the ground wire during flight can easily lead to loss of control. Simultaneously, the drone must approach a charged object at close range, posing a risk of electrical discharge and potential crash. In addition, after the ground wire is attached, manual high-altitude retrieval or reliance on complex remote control mechanisms is still required, making operation cumbersome and unable to fully realize remote ground operations.

[0004] Therefore, existing technologies have problems such as high load requirements, insufficient safety distance, and the operation process not completely eliminating the risks of high altitudes. There is a need for a safe, efficient, and compatible cable-hanging device for mainstream drones. Summary of the Invention

[0005] To address the aforementioned issues, a drone cable attachment device with mechanical limit and remote unlocking is provided, aiming to solve the problems existing in the prior art.

[0006] The specific technical solution is as follows:

[0007] A drone cable attachment device with mechanical limiting and remote unlocking includes a connecting component, a work point hook, a ground wire traction component, and a ground wire self-locking component. The upper end of the connecting component is used to connect the drone, and the lower end of the connecting component is detachably connected to the work point hook. The ground wire self-locking component is disposed at the lower end of the work point hook. One end of the ground wire traction component passes through the ground wire self-locking component and is detachably connected to one end of the ground wire. The other end of the ground wire traction component extends to the ground after passing around a pulley disposed on the work point hook. When the work point hook is attached to the work point, pulling the other end of the ground wire traction component will cause one end of the ground wire to rise until it connects with the ground wire self-locking component.

[0008] The aforementioned drone cable-attaching device with mechanical limit and remote unlocking also has the following features: the connecting component includes an insulating hook and an insulating frame; the upper end of the insulating hook is detachably connected to the drone; and the insulating frame is detachably connected to the hook at the work point.

[0009] The aforementioned drone cable-attaching device with mechanical limiting and remote unlocking also has the following features: the work point hook includes a hook body, an elastic clamp, and a limiting stop bar. The elastic clamp is located at the hook head of the hook body. The upper end of the limiting stop bar is connected to the middle of the hook body, and the lower end of the limiting stop bar extends downward. An angle is formed between the limiting stop bar and the tail end of the hook body. The ground wire self-locking component is located at the angle, and the insulating frame is engaged by the ground wire self-locking component after entering the angle.

[0010] The aforementioned drone wire-attaching device with mechanical limit and remote unlocking also has the following features: the ground wire traction component includes a traction connector and a traction wire harness. The traction connector is made of conductive material. The lower end of the traction connector is connected to the ground wire. The upper end of the traction connector is provided with multiple evenly radially distributed engagement teeth. When the traction connector enters the ground wire self-locking component, the engagement teeth engage with the ground wire self-locking component.

[0011] The aforementioned drone cable-attaching device with mechanical limit and remote unlocking also has the following feature: both the upper and lower ends of the biting teeth are beveled, and the biting teeth protrude from the surface of the traction connector.

[0012] The aforementioned drone wire-attaching device with mechanical limiting and remote unlocking also has the following feature: the ground wire self-locking assembly includes a self-locking cylinder, the top of the inner cavity of the self-locking cylinder is provided with an annular limiting tooth, and the lower end of the self-locking cylinder is provided with multiple locking teeth. The multiple locking teeth are evenly spaced, and a gap is left between two adjacent locking teeth for the biting teeth to pass through. When the traction connector enters the self-locking cylinder, the locking teeth contact the upper inclined surface of the biting teeth, causing it to rotate to the gap. As the traction connector continues to enter the self-locking cylinder, the upper inclined surface of the biting teeth contacts the annular limiting tooth, and the annular limiting tooth pushes the traction connector to rotate. When the traction connector reaches the limit position, the traction connector is released. At this time, the traction connector descends until the lower end of the biting tooth engages with the locking tooth.

[0013] The aforementioned drone cable-attaching device with mechanical limiting and remote unlocking also has the following features: the self-locking tooth protrudes from the inner wall of the self-locking cylinder, and the lower end of the self-locking tooth is configured as a double-sloped surface with a lower center and higher sides. When the upper end of the biting tooth contacts the two slopes at the lower end of the self-locking tooth, the biting tooth is guided by the slopes to the corresponding gap. The upper end of the self-locking tooth is provided with a locking groove into which the lower end of the biting tooth can be inserted. The locking groove is wider at the top and narrower at the bottom. When the lower end of the biting tooth is above the opening of the locking groove, the biting tooth can just enter the locking groove after being released. When the lower end of the biting tooth deviates from the opening of the locking groove, the biting tooth is guided to the corresponding gap.

[0014] The aforementioned drone cable-attaching device with mechanical limit and remote unlocking also has the following feature: it further includes a guide tube, which is disposed at the bottom end of the self-locking tube. The upper opening of the guide tube is connected to the self-locking tube, and the lower opening of the guide tube is larger than its upper opening, forming an inverted funnel shape.

[0015] The aforementioned drone cable-attaching device with mechanical limiting and remote unlocking also has the following features: the traction connector includes a ground wire connecting cylinder and a sleeve cylinder. The sleeve cylinder is fitted onto the upper end of the ground wire connecting cylinder, and the two are detachably connected. Multiple engagement teeth are radially spaced on the outer side wall of the sleeve cylinder. The outer diameter of the sleeve cylinder is the same as the outer diameter of the lower part of the ground wire connecting cylinder. The engagement teeth protrude from the outer side wall of the sleeve cylinder. A fixing threaded hole is provided on the lower side wall of the ground wire connecting cylinder. When the ground wire enters the ground wire connecting cylinder, a bolt can be screwed in to fix the ground wire to the ground wire connecting cylinder.

[0016] The aforementioned drone cable-attaching device with mechanical limiting and remote unlocking also has the following feature: the hook body includes two identical hook-shaped plates and several connecting rods of the same length. The two hook-shaped plates are distributed in parallel, and the several connecting rods are distributed in parallel and spaced between the two hook-shaped plates. The two ends of the connecting rods are respectively connected to the two hook-shaped plates.

[0017] In summary, the beneficial effects of this scheme are:

[0018] The drone wire-attaching device with mechanical limiting and remote unlocking provided by this invention completes the ground wire attachment and remote locking and unlocking operations through a ground-traction wire harness. This solves the problems of high operational difficulty, high load pressure, high safety risks, and inability to remotely retrieve heavy ground wires directly attached to drones in existing technologies. It enables full ground control, avoids high-altitude operations, and improves operational safety and efficiency. The drone wire-attaching device with mechanical limiting and remote unlocking provided by this invention is easy to operate and avoids high-altitude operations. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the drone cable-attaching device with mechanical limiting and remote unlocking according to the present invention.

[0020] Figure 2 This is a side view of the UAV cable-attaching device with mechanical limiting and remote unlocking according to the present invention.

[0021] Figure 3 This is a schematic diagram of the disassembled structure of the drone cable attachment device with mechanical limiting and remote unlocking according to the present invention.

[0022] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a three-dimensional structural diagram of the traction connector of the drone cable attachment device with mechanical limiting and remote unlocking according to the present invention.

[0024] Figure descriptions: 1. Insulating hook; 2. Insulating frame; 3. Hook body; 4. Flexible bend clamp; 5. Limiting stop bar; 6. Traction connector; 61. Grounding connector cylinder; 62. Sleeve cylinder; 63. Engaging teeth; 7. Traction harness; 8. Self-locking cylinder; 81. Annular limiting teeth; 82. Self-locking teeth. Detailed Implementation

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0027] The present invention will be further described below with reference to specific embodiments, but these are not intended to limit the scope of the invention.

[0028] Figure 1 This is a three-dimensional structural diagram of the drone cable-attaching device with mechanical limiting and remote unlocking according to the present invention. Figure 2 This is a side view of the UAV cable-attaching device with mechanical limiting and remote unlocking according to the present invention. Figure 3 This is a schematic diagram of the disassembled structure of the drone cable-attaching device with mechanical limiting and remote unlocking according to the present invention. Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle. Figure 5This is a three-dimensional structural diagram of the traction connector of the UAV cable-attaching device with mechanical limiting and remote unlocking according to the present invention, as shown below. Figure 1 and Figure 2 As shown, the drone cable-attaching device with mechanical limit and remote unlocking provided in this embodiment includes a connecting component, a work point hook, a ground wire traction component, and a ground wire self-locking component. The upper end of the connecting component is used to connect the drone, and the lower end of the connecting component is detachably connected to the work point hook. The ground wire self-locking component is set at the lower end of the work point hook. One end of the ground wire traction component is detachably connected to one end of the ground wire after passing through the ground wire self-locking component. The other end of the ground wire traction component extends to the ground after passing around the pulley set on the work point hook. When the work point hook is hung at the work point, pulling the other end of the ground wire traction component will cause one end of the ground wire to rise until it is connected to the ground wire self-locking component.

[0029] In the above embodiments, the connecting assembly includes an insulating hook 1 and an insulating frame 2. The upper end of the insulating hook 1 is detachably connected to the drone, and the insulating frame 2 is detachably connected to the hook at the work point.

[0030] It should be noted that the insulating hook 1 is made of epoxy resin round tube and epoxy resin sheet. The insulating hook 1 is installed on one end of the drone and has a rotating shaft structure, so that the entire device can be laid flat on the ground, which facilitates the connection and inspection of each component on the ground.

[0031] It should also be noted that the insulating frame 2 is a rhomboid frame, and its lower end is fixed to the hook body 3.

[0032] In the above embodiment, the work point hook includes a hook body 3, an elastic bend clamp 4, and a limiting stop bar 5. The elastic bend clamp 4 is disposed at the hook head of the hook body 3. The upper end of the limiting stop bar 5 is connected to the middle part of the hook body 3, and the lower end of the limiting stop bar 5 extends downward. An angle is formed between the limiting stop bar 5 and the tail end of the hook body 3. The ground wire self-locking component is disposed at the angle. After the insulating frame 2 enters the angle, it is locked by the ground wire self-locking component.

[0033] It should be noted that the limit stop bar 5 and the hook body 3 are integrated and both are made of epoxy resin. During the hanging process, the limit stop bar contacts the work point first, limiting the front and rear position of the hook body. When the drone adjusts its position until the limit stop bar is fully attached to the work point, the drone slowly descends, and the hook body 3 automatically snaps into the predetermined position to complete the placement operation.

[0034] In the above embodiment, the ground wire traction assembly includes a traction connector 6 and a traction harness 7. The traction connector 6 is made of conductive material. The lower end of the traction connector 6 is connected to the ground wire. The upper end of the traction connector 6 is provided with a plurality of uniformly radially distributed engagement teeth 63. When the traction connector 6 enters the ground wire self-locking assembly, the engagement teeth 63 engage with the ground wire self-locking assembly.

[0035] In the above embodiment, both the upper and lower ends of the biting tooth 63 are beveled, and the biting tooth 63 protrudes from the surface of the traction connector 6.

[0036] like Figure 3 and Figure 4 As shown, in the above embodiment, the ground wire self-locking assembly includes a self-locking cylinder 8. The top of the inner cavity of the self-locking cylinder 8 is provided with an annular limiting tooth 81, and the lower end of the self-locking cylinder 8 is provided with multiple locking teeth. The multiple locking teeth are evenly spaced, and a gap is left between two adjacent locking teeth for the biting tooth 63 to pass through. When the traction connector 6 enters the self-locking cylinder 8, the locking tooth contacts the upper inclined surface of the biting tooth 63, causing it to rotate to the gap. As the traction connector 6 continues to enter the self-locking cylinder 8, the upper inclined surface of the biting tooth 63 contacts the annular limiting tooth 81, and the annular limiting tooth 81 pushes the traction connector 6 to rotate. When the traction connector 6 reaches the limit position, the traction connector 6 is released. At this time, the traction connector 6 descends until the lower end of the biting tooth 63 engages with the locking tooth.

[0037] In the above embodiment, the self-locking tooth 82 protrudes from the inner wall of the self-locking cylinder 8. The lower end of the self-locking tooth 82 is configured as a double-sloped surface with a lower center and higher sides. When the upper end of the biting tooth 63 contacts the two slopes at the lower end of the self-locking tooth 82, the biting tooth 63 is guided by the slopes to the corresponding gap. The upper end of the self-locking tooth 82 is provided with a locking groove into which the lower end of the biting tooth 63 can be inserted. The locking groove is wider at the top and narrower at the bottom. When the lower end of the biting tooth 63 is above the upper opening of the locking groove, the biting tooth 63 can just enter the locking groove after being released. When the lower end of the biting tooth 63 deviates from the upper opening of the locking groove, the biting tooth 63 is guided to the corresponding gap.

[0038] In the above embodiment, a guide tube is also included. The guide tube is disposed at the bottom end of the self-locking tube 8. The upper opening of the guide tube is connected to the self-locking tube 8, and the lower opening of the guide tube is larger than its upper opening, forming an inverted funnel shape.

[0039] like Figure 5 As shown, in the above embodiment, the traction connector 6 includes a ground wire connecting cylinder 61 and a sleeve cylinder 62. The sleeve cylinder 62 is sleeved on the upper end of the ground wire connecting cylinder 61, and the two are detachably connected. Multiple engagement teeth 63 are radially spaced on the outer side wall of the sleeve cylinder 62. The outer diameter of the sleeve cylinder 62 is the same as the outer diameter of the lower part of the ground wire connecting cylinder 61. The engagement teeth 63 protrude from the outer side wall of the sleeve cylinder 62. A fixing threaded hole is opened on the lower side wall of the ground wire connecting cylinder 61. When the ground wire enters the ground wire connecting cylinder 61, a bolt can be screwed in to fix the ground wire to the ground wire connecting cylinder 61.

[0040] It should be noted that both the ground wire connecting cylinder 61 and the sleeve cylinder 62 are made of conductive material. The self-locking cylinder 8 and the elastic bending clamp 4 are electrically connected. When the biting tooth 63 and the self-locking tooth 82 are engaged, the ground wire, the ground wire connecting cylinder 61, the self-locking cylinder 8 and the hanging point are all connected.

[0041] In the above embodiment, the hook body 3 includes two identical hook-shaped plates and several connecting rods of the same length. The two hook-shaped plates are distributed in parallel, and the several connecting rods are distributed in parallel and spaced between the two hook-shaped plates. The two ends of the connecting rods are respectively connected to the two hook-shaped plates.

[0042] The working principle and usage include the following steps:

[0043] Ground preparation stage: The insulated hook 1 of the UAV terminal uses the rotating shaft structure to lay the entire device flat on the ground, and completes all preparation work such as connecting the various components of the device, arranging the wiring harness, and connecting the ground wire on the ground.

[0044] Takeoff phase: The drone ascends vertically, and the device unfolds naturally under the action of gravity. The insulated hook 1 connected to the drone carries the device to the airspace above the work site.

[0045] Pre-attachment stage: The drone flies to the work point and contacts and positions itself at the work point through the limit stop bar. It slowly descends so that the hook body 3 automatically engages with the work point. After the device is fully placed, the device's own weight triggers the elastic bending clamp 4 to clamp the work point, completing the pre-attachment of the device. The drone then unhooks and returns to base.

[0046] Traction and locking stage: Ground personnel pull the traction harness 7, which pulls the ground wire to rise. The ground wire is connected to the self-locking cylinder 8 through the traction connector 6. The self-locking device automatically engages under the gravity of the ground wire. The locking force increases with the increase of the load, ensuring a stable and reliable grounding state.

[0047] During the maintenance phase: the grounding wire is installed and the device remains grounded; no drones are required throughout the entire process.

[0048] Recovery Phase: After maintenance is completed, ground personnel pull the traction harness 7, and the device's pulley lifts the traction connector 6 vertically upward. The meshing teeth 63 press against the inclined surface of the annular limiting teeth 81 and rotate to the gap of the self-locking teeth 82. The traction connector 6 disengages, and the ground wire slowly descends to the ground due to its own weight. Subsequently, the drone takes off again, hooks the diamond-shaped insulating frame 2 with the drone end insulating hook 1, and pulls the device away from the work point, carrying the device back to land.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the content of this specification should be included within the protection scope of the present invention.

Claims

1. A drone cable attachment device with mechanical limit and remote unlocking, characterized in that: The device includes a connecting component, a work point hook, a ground wire traction component, and a ground wire self-locking component. The upper end of the connecting component is used to connect to the drone, and the lower end of the connecting component is detachably connected to the work point hook. The ground wire self-locking component is located at the lower end of the work point hook. One end of the ground wire traction component passes through the ground wire self-locking component and is detachably connected to one end of the ground wire. The other end of the ground wire traction component extends to the ground after passing around a pulley set on the work point hook. When the work point hook is hooked at the work point, pulling the other end of the ground wire traction component will cause one end of the ground wire to rise until it connects with the ground wire self-locking component.

2. The UAV cable-attaching device with mechanical limiting and remote unlocking according to claim 1, characterized in that: The connection assembly includes an insulating hook (1) and an insulating frame (2). The upper end of the insulating hook (1) is detachably connected to the UAV, and the insulating frame (2) is detachably connected to the hook at the work point.

3. A drone cable-attaching device with mechanical limiting and remote unlocking according to claim 2, characterized in that: The work point hook includes a hook body (3), an elastic bend clamp (4), and a limiting stop bar (5). The elastic bend clamp (4) is located at the hook head of the hook body (3). The upper end of the limiting stop bar (5) is connected to the middle part of the hook body (3). The lower end of the limiting stop bar (5) extends downward. An angle is formed between the limiting stop bar (5) and the tail end of the hook body (3). The ground wire self-locking component is located at the angle. After the insulating frame (2) enters the angle, it is locked by the ground wire self-locking component.

4. A drone cable-attaching device with mechanical limiting and remote unlocking according to claim 3, characterized in that: The ground wire traction assembly includes a traction connector (6) and a traction harness (7). The traction connector (6) is made of conductive material. The lower end of the traction connector (6) is connected to the ground wire. The upper end of the traction connector (6) is provided with a plurality of uniformly radially distributed engagement teeth (63). When the traction connector (6) enters the ground wire self-locking assembly, the engagement teeth (63) engage with the ground wire self-locking assembly.

5. A drone cable-attaching device with mechanical limiting and remote unlocking according to claim 4, characterized in that: Both ends of the biting tooth (63) are beveled, and the biting tooth (63) protrudes from the surface of the traction connector (6).

6. A drone cable-attaching device with mechanical limiting and remote unlocking according to claim 5, characterized in that: The grounding self-locking assembly includes a self-locking cylinder (8). The top of the inner cavity of the self-locking cylinder (8) is provided with an annular limiting tooth (81). The lower end of the self-locking cylinder (8) is provided with multiple locking teeth. The multiple locking teeth are evenly spaced apart. A gap is left between two adjacent locking teeth for the biting tooth (63) to pass through. When the traction connector (6) enters the self-locking cylinder (8), the locking tooth contacts the upper inclined surface of the biting tooth (63) and makes it rotate to the gap. As the traction connector (6) continues to enter the self-locking cylinder (8), the upper inclined surface of the biting tooth (63) contacts the annular limiting tooth (81). The annular limiting tooth (81) pushes the traction connector (6) to rotate. When the traction connector (6) enters the limit position, the traction connector (6) is released. At this time, the traction connector (6) descends until the lower end of the biting tooth (63) engages with the locking tooth.

7. A drone cable-attaching device with mechanical limiting and remote unlocking according to claim 6, characterized in that: The self-locking tooth (82) protrudes from the inner wall of the self-locking cylinder (8). The lower end of the self-locking tooth (82) is set as a double-sloped surface with a lower center and higher sides. When the upper end of the biting tooth (63) contacts the two slopes at the lower end of the self-locking tooth (82), the biting tooth (63) is guided to the corresponding gap by the slopes. The upper end of the self-locking tooth (82) is provided with a locking groove into which the lower end of the biting tooth (63) can be inserted. The locking groove is wider at the top and narrower at the bottom. When the lower end of the biting tooth (63) is above the opening of the locking groove, the biting tooth (63) can just enter the locking groove after being released. When the lower end of the biting tooth (63) deviates from the opening of the locking groove, the biting tooth (63) is guided to the corresponding gap.

8. A drone cable-attaching device with mechanical limiting and remote unlocking according to claim 6 or 7, characterized in that: It also includes a guide tube, which is located at the bottom of the self-locking tube (8). The upper opening of the guide tube is connected to the self-locking tube (8), and the lower opening of the guide tube is larger than its upper opening, forming an inverted funnel shape.

9. A drone cable-attaching device with mechanical limiting and remote unlocking according to any one of claims 4-7, characterized in that: The traction connector (6) includes a ground wire connecting cylinder (61) and a sleeve cylinder (62). The sleeve cylinder (62) is fitted onto the upper end of the ground wire connecting cylinder (61), and the two are detachably connected. Multiple engagement teeth (63) are radially spaced on the outer side wall of the sleeve cylinder (62). The outer diameter of the sleeve cylinder (62) is the same as the outer diameter of the lower part of the ground wire connecting cylinder (61). The engagement teeth (63) protrude from the outer side wall of the sleeve cylinder (62). The lower side wall of the ground wire connecting cylinder (61) is provided with a fixing threaded hole. When the ground wire enters the ground wire connecting cylinder (61), a bolt can be screwed in to fix the ground wire to the ground wire connecting cylinder (61).

10. A drone cable-attaching device with mechanical limiting and remote unlocking according to claim 3, characterized in that: The hook body (3) includes two identical hook-shaped plates and several connecting rods of the same length. The two hook-shaped plates are distributed in parallel, and the several connecting rods are distributed in parallel and spaced between the two hook-shaped plates. The two ends of the connecting rods are respectively connected to the two hook-shaped plates.

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