Ground connection device based on heavy load unmanned aerial vehicle
By designing a grounding wire attachment and removal device for heavy-duty drones and utilizing an automatic locking mechanism to remotely control the hook, the problem of drone hooks being interfered with by obstacles during high-altitude operations was solved, achieving efficient and safe grounding wire attachment and removal operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANNXI POWER TRANSMISSION & TRANSFORMATION CO
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-24
AI Technical Summary
Existing drone hooks have complex structures, are difficult to operate at high altitudes, and are easily interfered with by obstacles, making it difficult to quickly and reliably attach the hook to the wire or crossarm, thus posing a safety hazard.
A grounding and hook-and-hook device based on a heavy-duty UAV was designed. The device uses soft copper wire to connect the conductor and the hook at the end of the crossarm. The automatic hook locking mechanism consists of a locking rod, a worm gear, a worm, a motor, and a wireless control module. The hook locking is achieved through remote control to avoid interference from obstacles.
This technology enables drones to be attached to grounding wires efficiently and quickly, reducing operational difficulty, avoiding the safety hazard of accidental hook detachment, and improving operational reliability and safety.
Smart Images
Figure CN224554744U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a high-altitude grounding wire device, and more particularly to a grounding wire attachment and removal device based on heavy-duty UAVs. Background Technology
[0002] In order to ensure the safety of operators and prevent accidents caused by sudden power supply or induced electricity during the construction or daily operation and maintenance of power transmission lines, grounding wires need to be hung on overhead conductors. One end of the grounding wire is hung on the conductor, and the other end is hung on the crossarm of the tower.
[0003] Traditionally, grounding wire installation involves workers climbing poles and manually attaching the wires. This method is inefficient, labor-intensive, and poses a safety hazard of electric shock to the workers. With the application of drone technology, grounding wire installation via drones is convenient, efficient, and reduces labor costs, eliminating the risk of injury to workers. However, due to the complexity of existing hook structures, drone-based grounding wire installation is challenging due to the high altitude involved. Remotely attaching the grounding wire hook to the conductor or crossarm is difficult, especially when hindered by obstacles such as other conductors, crossarms, or tree branches. The hook can easily become obstructed during the drone's lifting process, making it difficult to quickly and reliably attach the hook to the conductor or crossarm. Summary of the Invention
[0004] This invention provides a grounding wire attachment and removal device based on a heavy-duty UAV, which can conveniently and quickly attach the grounding wire to the conductor and crossarm using a UAV, and can avoid interference from other obstacles near the conductor or crossarm during the attachment process.
[0005] The technical solution of this utility model is as follows: a grounding wire attachment and detachment device for heavy-duty UAVs, comprising a soft copper wire, a wire end hook, and a crossarm end hook. The wire end hook and the crossarm end hook are respectively fixedly connected to the two ends of the soft copper wire to form a current path. Both the wire end hook and the crossarm end hook include a hook body composed of two parallel metal plates fixedly connected, a hook handle extending from the lower part of the hook body, and a hook ear formed on one side of the upper part of the hook body. A hook part with an opening facing downwards is formed between the hook ear and the hook body. An automatic hook locking mechanism is provided in the accommodating space between the two parallel metal plates of the hook body. The automatic hook locking mechanism is used to remotely control the locking of the hook part opening to prevent the hook from accidentally disengaging. A lifting part for connecting with the UAV lifting device is provided at the upper part of the hook body of the crossarm end hook.
[0006] The automatic locking mechanism of the hook includes a locking rod, a worm gear, a worm, a motor, a battery, and a wireless control module. The motor, battery, and wireless control module are fixed to the hook body. The worm and worm are installed between two parallel metal plates on the hook body. The battery powers the motor and wireless control module. The wireless control module communicates wirelessly with the UAV operator controller. One end of the locking rod is fixed to the side of the worm. The motor drives the worm to rotate the worm. Under the drive of the worm, the locking rod rotates around the worm shaft within a certain angle range. After the other end of the locking rod rotates a certain angle, it locks at the opening of the hook.
[0007] The cross-sectional area of the hook portion of the conductor end hook is adapted to the cross-sectional area of the conductor, and the cross-sectional area of the hook portion of the crossarm end hook is adapted to the width of the crossarm cross-section.
[0008] The upper end of the hook body of the wire end hook is connected to one end of the soft copper wire, and the lower end of the hook handle of the crossarm end hook is connected to the other end of the soft copper wire.
[0009] The lower end of the hook lug is connected to a guide rod, one end of which is fixedly connected to the end of the hook lug, and the other end extends away from the hook body.
[0010] The two parallel metal plates are fixedly connected by a plurality of connecting bolt assemblies.
[0011] The metal plate material is aluminum alloy or titanium alloy.
[0012] The beneficial effects of this utility model are: because the automatic locking mechanism of the hook is set in the accommodating space formed between two parallel metal plates of the hook body, the hook has a flat outline and small size, and the locking of the hook opening can be controlled remotely wirelessly, so that when the drone lifts the hook, it will not be interfered with by the wire or obstacles around the crossarm at high altitude, thus making it convenient and quick to hang the hook on the crossarm and the wire. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is the main view of the hook structure at the end of the crossarm;
[0015] Figure 3 Right view of the crossarm end hook structure;
[0016] Figure 4 This is the main view of the wire end hook structure;
[0017] Figure 5 This is a right view of the wire end hook structure.
[0018] Explanation of reference numerals in the attached figures:
[0019] 1-Crossarm end hook; 101-Crossarm end hook body; 102-Crossarm end hook lug; 103-Crossarm end hook handle; 2-Wire end hook; 201-Wire end hook body; 202-Wire end hook lug; 203-Wire end hook handle; 3-Soft copper wire; 4-Guide plate; 5-Locking rod; 6-Turbine; 7-Worm gear; 8-Bearing and its mounting components; 9-Motor; 10-Battery; 11-Wireless control module; 12-Crossarm; 13-Wire; 14-Lifting part; 15-Connecting bolt assembly. Detailed Implementation
[0020] The following is combined with Figures 1 to 5 The specific embodiments of this utility model are described in detail below, but it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.
[0021] like Figure 1 As shown, the grounding wire attachment and detachment device for heavy-duty UAVs described in this utility model includes a soft copper wire 3, a wire end hook 2, and a crossarm end hook 1. The wire end hook 2 and the crossarm end hook 1 are respectively fixedly connected to both ends of the soft copper wire 3 to form a current path; the soft copper wire 3 is a flat copper wire with excellent conductivity and good flexibility; as shown... Figure 2 , Figure 3 As shown, the crossarm end hook 1 includes a crossarm end hook body 101 composed of two parallel metal plates, a crossarm end hook shank 103 extending from the lower part of the hook body, and a crossarm end hook lug 102 formed on one side of the upper part of the hook body; as shown Figure 4 , Figure 5 As shown, the wire end hook 2 includes a wire end hook body 201 composed of two parallel metal plates, a wire end hook handle 203 extending from the lower part of the hook body, and a wire end hook lug 202 formed on one side of the upper part of the hook body.
[0022] The two parallel metal plates of the aforementioned wire end hook 2 and crossarm end hook 1 are both made of titanium alloy or aluminum alloy. The two parallel metal plates are fixedly connected by a connecting bolt assembly 15, which includes a connecting bolt and a support column. The support column has a through hole in its center. The connecting bolt is inserted from a screw hole on one side of the metal plate, passes through the through hole in the center of the support column, and its threaded end connects to the internal thread of the other side of the metal plate. Multiple connecting bolt assemblies 15 fix the two parallel metal plates together, forming an accommodating space inside the hook body. To prevent the screw head of the connecting bolt from interfering with objects near the wire 13 or crossarm 12, the bolt head is recessed into the outer surface of the metal plate.
[0023] A downward-opening hook portion is formed between the hook lug 102 at the crossarm end and the hook body 101 at the crossarm end. The cross-sectional area of the hook portion of the hook 1 at the crossarm end is adapted to the cross-sectional width of the crossarm 12. An automatic hook locking mechanism is provided in the accommodating space between the two parallel metal plates of the hook body 201 at the crossarm end. A downward-opening hook portion is also formed between the hook lug 102 at the wire end and the hook body 101 at the wire end. The cross-sectional area of the hook portion of the hook 2 at the wire end is adapted to the cross-sectional area of the wire 13. An automatic hook locking mechanism is provided in the accommodating space between the two parallel metal plates of the hook body 201 at the wire end. The automatic hook locking mechanism is used to remotely control the locking of the hook portion opening to prevent the hook from accidentally disengaging. A lifting part 14 for connection with a drone lifting device is provided at the upper end of the hook body 101 at the crossarm end.
[0024] The automatic locking mechanism of the hook includes a locking rod 5, a worm gear 6, a worm 7, a motor 9, a battery 10, and a wireless control module 11. The motor 9, battery 10, and wireless control module 11 are fixedly connected to the hook body. The worm gear 6 and worm 7 are installed between two parallel metal plates on the hook body. The two ends of the worm shaft of the worm gear 6 are supported on the parallel metal plates on both sides. The worm 7 is connected to a metal plate on one side via a bearing and its mounting assembly 8. The bearing and its mounting assembly 8 includes two sets of bearings and bearing seats. The two ends of the worm 7 are supported on the two bearings. Battery 10... Power is supplied to motor 9 and wireless control module 11. Wireless control module 11 communicates wirelessly with UAV operation controller to control the movement of motor 9. The output shaft of motor 9 is coaxially connected to worm 7 via coupling. The motor output shaft is connected to worm 7 to drive worm wheel 6 to rotate. One end of locking rod 5 is fixed to the side of turbine 6. Motor 9 drives worm 7, which in turn drives turbine 6 to rotate. Locking rod 5 rotates around turbine shaft within a certain angle range under the drive of turbine 6. The other end of locking rod 5 rotates a certain angle and then closes at the opening of hook part. Under normal conditions, the automatic hook locking mechanism is located in the aforementioned accommodating space. When the hook part of crossarm end hook 1 or wire end hook 2 is engaged on crossarm 12 or wire 13, UAV operation controller issues a command, the automatic hook locking mechanism is activated, locking rod 5 rotates and extends out from the accommodating space to lock at the opening of the corresponding hook part.
[0025] Guide rods 4 are connected to the lower ends of the crossarm 12 lifting lug 102 and the wire hook lug 202, respectively. One end of the guide rod 4 is fixedly connected to the end of the hook lug, and the other end extends away from the hook body. The function of the guide rod 4 is to guide the crossarm 12 or the wire 13, so that the crossarm 12 or the wire 13 can smoothly enter the hook part.
[0026] The upper end of the hook body of the wire end hook 2 is connected to one end of the soft copper wire 3 through a terminal bolt, and the lower end of the hook handle of the crossarm end hook 1 is connected to the other end of the soft copper wire 3 through a terminal bolt.
[0027] The upper part of the connection between the hook lug and the hook body is an upward-protruding arc shape to prevent and reduce interference between the hook and obstacles.
[0028] The procedure for connecting the grounding wire to the drone is as follows:
[0029] 1. Assemble the grounding wire device on the ground, and securely connect one end of the soft copper wire 3 to the end of the hook handle of the crossarm hook 1 by bolting, and securely connect the other end to the upper end of the hook body of the conductor hook 2 by bolting; the locking rod 5 of the hook automatic locking mechanism is located in the accommodating space of the hook body.
[0030] 2. Restart the drone and connect the drone hoist to the upper part of the crossarm end hook 1 to lift the grounding wire device to the vicinity of the crossarm; the crossarm end hook 1 is located above the crossarm.
[0031] 3. Adjust the attitude of the drone. Use the guide rod 4 to guide and adjust the height of the drone. After hooking the crossarm end hook 1 onto the crossarm 12, activate the hook automatic locking mechanism on the crossarm end hook 1 so that the locking rod 5 of the crossarm end hook 1 extends and locks at the opening of the hook part.
[0032] 4. Operate the drone to raise the hook 2 at the end of the wire above the wire 13;
[0033] 5. Adjust the drone's attitude, use the guide rod 4 to guide and adjust the drone's altitude. After hooking the wire end hook 2 onto the wire 13, activate the automatic locking mechanism on the wire end hook 2 so that the locking rod 5 of the wire end hook 2 extends and locks at the opening of the hook part.
[0034] 6. Once the grounding wire is connected, the drone departs.
[0035] After the task is completed, the steps for removing the grounding wire are the reverse of the above connection sequence: first remove the wire end hook 2, and then remove the crossarm end hook 1.
Claims
1. A grounding wire attachment and detachment device for heavy-duty UAVs, comprising a soft copper wire (3), a wire end hook (2), and a crossarm end hook (1), wherein the wire end hook (2) and the crossarm end hook (1) are respectively fixedly connected to both ends of the soft copper wire (3) to form a current path, characterized in that, Both the wire end hook (2) and the crossarm end hook (1) include a hook body consisting of two parallel metal plates fixedly connected together, a hook handle extending from the lower part of the hook body, and a hook lug formed on one side of the upper part of the hook body. A hook part with an opening facing downwards is formed between the hook lug and the hook body. An automatic hook locking mechanism is provided in the accommodating space between the two parallel metal plates of the hook body. The automatic hook locking mechanism is used to remotely control the locking of the opening of the hook part to prevent the hook from accidentally coming off. A lifting part (14) connected to the UAV lifting device is provided at the upper part of the hook body of the crossarm end hook (1).
2. The grounding wire attachment and detachment device based on heavy-duty UAVs as described in claim 1, characterized in that, The automatic locking mechanism of the hook includes a locking rod (5), a worm gear (6), a worm (7), a motor (9), a battery (10), and a wireless control module (11). The motor (9), battery (10), and wireless control module (11) are fixed on the hook body. The worm gear (6) and worm (7) are installed between two parallel metal plates on the hook body. The battery (10) supplies power to the motor (9) and wireless control module (11). The wireless control module (11) communicates wirelessly with the UAV operation controller. One end of the locking rod (5) is fixed to the side of the worm gear (6). The motor (9) drives the worm (7) to rotate the worm gear (6). The locking rod (5) rotates around the turbine shaft within a certain angle range under the drive of the worm gear (6). The other end of the locking rod (5) locks at the opening of the hook after rotating a certain angle.
3. The grounding wire attachment and detachment device based on heavy-duty UAVs as described in claim 1, characterized in that, The cavity cross section of the hook part of the conductor end hook (2) is adapted to the cross section of the conductor (13), and the cavity cross section of the hook part of the crossarm end hook (1) is adapted to the width of the crossarm (12).
4. The grounding wire attachment and detachment device based on heavy-duty UAVs as described in claim 1, characterized in that, The upper end of the hook body of the wire end hook (2) is connected to one end of the soft copper wire (3), and the lower end of the hook handle of the crossarm end hook (1) is connected to the other end of the soft copper wire (3).
5. The grounding wire attachment and detachment device based on heavy-duty UAVs as described in claim 1, characterized in that, The lower end of the hook lug is connected to a guide rod (4), one end of which is fixedly connected to the end of the hook lug, and the other end extends away from the hook body.
6. The grounding wire attachment and detachment device based on heavy-duty UAVs as described in claim 1, characterized in that, The two parallel metal plates are fixedly connected by a plurality of connecting bolt assemblies (15).
7. The grounding wire attachment and detachment device based on heavy-duty UAVs as described in claim 1, characterized in that, The metal plate material is aluminum alloy or titanium alloy.