Unmanned aerial vehicle tether system
By designing a drone grounding wire system, and adopting a self-locking structure and intelligent monitoring module, the problem of drone grounding wire devices easily falling off has been solved, enabling efficient and safe grounding wire attachment and removal operations, and reducing the risk of falling from heights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN FREED POWER EQUIP TECH CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional drone grounding wire attachment devices are prone to detaching after being attached to the wire, posing a high risk of falling from heights.
A drone grounding wire system was designed, which uses a hook, a wire end clamp, and a grounding end clamp. Both the wire end clamp and the grounding end clamp are equipped with a self-locking structure. The self-locking is achieved by using a switch magnetic base and a spring structure. Combined with an intelligent module for monitoring the hanging status, it ensures that the device is stably clamped on the wire.
It improves the efficiency of grounding and reduces safety risks. The self-locking structure ensures that the grounding wire maintains effective contact during operation and maintenance, reducing the risk of detachment. It also improves safety through real-time monitoring and alarms via intelligent modules.
Smart Images

Figure CN224537683U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power maintenance equipment technology, and in particular to a grounding wire system for unmanned aerial vehicles (UAVs). Background Technology
[0002] With the rapid development of the power industry, the requirements for the reliability and safety of transmission lines are increasing. Traditional manual grounding wire attachment and removal methods are no longer sufficient to meet the needs of efficient and safe maintenance operations. Therefore, a drone-based grounding wire attachment and removal device was developed. However, in practical use, it was found that traditional drone-based grounding wire attachment and removal devices are prone to detaching after being attached to the conductor, posing a high risk of falling from a height. Therefore, there is an urgent need for a device that eliminates the need for manual grounding wire attachment and removal and can stably clamp onto the conductor.
[0003] The purpose of this invention is to overcome the shortcomings of existing technologies, such as the tendency of traditional drone grounding wire attachment devices to easily detach after being attached to the wire, resulting in a high risk of falling from a height, and to provide a drone grounding wire attachment system. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of existing technologies, such as the tendency of traditional drone grounding wire attachment devices to easily detach after being attached to the wire, resulting in a high risk of falling from a height, and to provide a drone grounding wire attachment system.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] A UAV grounding system includes a hook, a conductor end clamp, a grounding end clamp, and a grounding wire connecting the conductor end clamp and the grounding end clamp. The conductor end clamp has a first self-locking structure, and each grounding end clamp has a second self-locking structure. A lifting ring is provided at the top of the hook, conductor end clamp, and grounding end clamp. The hook is suspended from the UAV's landing gear via the lifting ring, and the conductor end clamp and grounding end clamp are suspended from the hook via the lifting ring. The first self-locking structure is a switching magnetic base, which includes two magnetic base units. A pull plate is provided above the conductor end clamp, and the two magnetic base units are symmetrically arranged below the pull plate. A first through hole is provided in the middle of the pull plate, and second through holes are provided at both ends.
[0007] The lifting ring passes through the first through hole and is movably connected to the pull plate;
[0008] The magnetic base unit includes: a pull rod, a spring, a magnetic base, and a turntable disposed on the side of the magnetic base; the magnetic base is fixedly connected to the wire end clamp.
[0009] The pull rod passes through the corresponding second through hole, one end is movably connected to the pull plate, and the other end is connected to one end of the steel wire rope wound on the turntable. The other end of the steel wire rope is connected to one end of the spring, and the other end of the spring is fixedly connected to the wire end clamp.
[0010] When the drone is lifted, the pulling force causes the turntable to rotate, thereby controlling the switch magnetic base to be in the closed state. When released, the spring preload causes the turntable to rotate again, controlling the switch magnetic base to be in the open state.
[0011] As a preferred embodiment of the present invention, the wire end clamp includes an integrally formed first polygonal panel and a second polygonal panel, which are fixedly connected by fixing bolts and are spaced apart from each other.
[0012] As a preferred embodiment of this utility model, one end of the spring is connected to the wire rope, and the other end is sleeved on the fixing bolt.
[0013] As a preferred embodiment of this utility model, a guide block is provided on the top of both the first polygonal panel and the second polygonal panel. A third through hole is provided on the guide block. One end of the pull rod passes through the corresponding third through hole and second through hole in sequence and is movably connected to the pull plate.
[0014] As a preferred embodiment of this utility model, both the first polygonal panel and the second polygonal panel are metal structural components.
[0015] As a preferred embodiment of this utility model, both the first polygonal panel and the second polygonal panel include a basic support device. The basic support device has a hollow structure in the middle, and metal rods are extended from both ends of the bottom of the basic support device, as well as a vertical metal rod perpendicular to the basic support device. A terminal is provided below the vertical metal rod.
[0016] As a preferred embodiment of this utility model, a smart module for monitoring the hanging status is provided between the vertical metal rods of the first polygonal panel and the second polygonal panel. It communicates with the monitoring center in real time through a ground data forwarding box to exchange information in real time about the hanging / removing status of the wire clamps at the ends of each phase conductor, the remaining power, the latitude and longitude of the actual hanging point, and the latitude and longitude of the designated hanging point.
[0017] As a preferred embodiment of this utility model, the base support device of the first polygonal panel and the second polygonal panel constitutes a first base support cavity, and the magnetic seat of the wire end clamp is disposed in the first base support cavity.
[0018] As a preferred embodiment of this utility model, a magnetic seat fixing plate is provided on the top of the first foundation bearing cavity, and the magnetic seat fixing plate is fixedly connected to the second foundation bearing cavity by screws, and the magnetic seat is fixedly connected to the bottom surface of the magnetic seat fixing plate.
[0019] Compared with the prior art, the advantages of this utility model are:
[0020] Using drones for grounding wire attachment improves efficiency, eliminates the need for workers to climb to heights, reduces the risk of falls, and lowers safety risks. A self-locking structure enables autonomous attachment and removal of the grounding wire. The conductor and grounding clamps are adaptable to cables of different diameters and maintain good contact. The self-locking structure ensures that the conductor and grounding clamps remain in effective contact with the conductor during maintenance. The first self-locking mechanism is a magnetic switch base that provides 1000N of clamping force after being attached to the tower angle steel, preventing the grounding end from loosening. Good contact between the grounding end and the angle steel ensures good conductivity. An intelligent monitoring module monitors the attachment status in real time. In case of unexpected grounding clamp loosening or work location exceeding boundaries, an automatic local alarm is triggered, and a remote alarm is simultaneously triggered at the monitoring center platform, enhancing safety. Attached Figure Description
[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts. In the drawings:
[0022] Figure 1 This is a schematic diagram of the UAV grounding wire system described in Embodiment 1 of this utility model;
[0023] Figure 2 This is a schematic diagram of the wire end clamp of the UAV grounding wire system described in Embodiment 1 of this utility model;
[0024] Figure 3 This is a schematic diagram of the pull plate of the UAV grounding wire system described in Embodiment 1 of this utility model;
[0025] Figure 4 This is a schematic diagram of the wire end clamp of the UAV grounding wire system described in Embodiment 2 of this utility model;
[0026] Figure 5 This is a schematic diagram of the intelligent module for monitoring the connection status of an auxiliary grounding wire attachment / removal device for unmanned aerial vehicles (UAVs) and the monitoring center, as described in Embodiment 2 of this utility model.
[0027] Figure descriptions: 1-Hook, 2-Wire end clamp, 3-Grounding end clamp, 4-Grounding wire, 5-First self-locking structure, 6-Lifting ring, 7-First polygonal panel, 7-Second polygonal panel, 8-Fixing bolt, 9-Pull plate, 11-Turntable, 12-Spring, 13-Magnetic base, 112-Magnetic base fixing plate, 14-First through hole, 114-Second through hole, 1114-Third through hole, 15-Wire rope, 16-Foundation bearing device, 17-Guide block, 18-Vertical metal rod, 118-Connecting terminal, 19-Metal rod, 20-Hollow structure, 21-Hanging status monitoring intelligent module, 22-Foundation bearing cavity. Detailed Implementation
[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0029] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance, or suggesting any such actual relationship or order between these entities or operations. Additionally, terms such as "connected," "linked," etc., can refer to a direct connection between components or an indirect connection via other components.
[0030] Example 1
[0031] Unmanned aerial vehicle (UAV) grounding wire system, such as Figure 1 As shown, it includes a hook 1, a conductor end clamp 2, a grounding end clamp 3, and a grounding wire 4 connecting the conductor end clamp 2 and the grounding end clamp 3; as Figure 2As shown, the conductor end clamp 2 is provided with a first self-locking structure 5, and the grounding end clamp 3 is provided with a second self-locking structure; the top of the hook 1, conductor end clamp 2, and grounding end clamp 3 are all provided with lifting rings 6. The hook 1 is suspended from the landing gear of the UAV by the lifting rings 6, and the conductor end clamp 2 and the grounding end clamp 3 are suspended from the hook 1 by the lifting rings 6. The first self-locking structure 5 is a switching magnetic base, which includes two magnetic base units. A pull plate 9 is provided above the conductor end clamp 2, and the two magnetic base units are symmetrically arranged below the pull plate 9, as shown. Figure 3 As shown, the pull plate 9 has a first through hole 14 in the middle and second through holes 114 at both ends;
[0032] The lifting ring 6 passes through the first through hole 14 and is movably connected to the pull plate 9;
[0033] The magnetic base unit includes: a pull rod 10, a spring 12, a magnetic base 13, and a turntable 11 disposed on the side of the magnetic base 13. The magnetic base 13 is fixedly connected to the wire end clamp 2.
[0034] The pull rod 10 passes through the corresponding second through hole 114, one end is movably connected to the pull plate 9, and the other end is connected to one end of the wire rope 15 wound on the turntable 11. The other end of the wire rope 15 is connected to one end of the spring 12, and the other end of the spring 12 is fixedly connected to the wire end clamp 2.
[0035] When the drone is lifted, the pulling force causes the turntable 11 to rotate, thereby controlling the switch magnetic base to the closed state. When released, the pre-tension of the spring 12 causes the turntable 11 to rotate again, controlling the switch magnetic base to the open state.
[0036] Example 2
[0037] This embodiment is a preferred structural configuration of the UAV grounding wire system described in Embodiment 1;
[0038] Specifically, such as Figure 4 As shown, the wire end clamp 2 includes an integrally formed first polygonal panel 7 and a second polygonal panel 77. The first polygonal panel 7 and the second polygonal panel 77 are fixedly connected by fixing bolts 8 and are arranged at intervals opposite to each other.
[0039] One end of the spring 12 is connected to the wire rope 15, and the other end is sleeved on the fixing bolt 8.
[0040] The top of both the first polygonal panel 7 and the second polygonal panel 77 is provided with a guide block 17, and the guide block 17 is provided with a third through hole 1114. One end of the pull rod 10 passes through the corresponding third through hole 1114 and second through hole 114 in sequence and is movably connected to the pull plate 9.
[0041] Both the first polygonal panel 7 and the second polygonal panel 77 are metal structural components.
[0042] Both the first polygonal panel 7 and the second polygonal panel 77 include a base support device 16. The base support device 16 has a hollow structure 20 in the middle. Metal rods 19 are extended from both ends of the bottom of the base support device 16, and a vertical metal rod 18 is perpendicular to the base support device 16. A terminal 118 is provided below the vertical metal rod 18.
[0043] A smart module 21 for monitoring the hanging status is provided between the vertical metal rod 18 of the first polygonal panel 7 and the second polygonal panel 77, such as... Figure 5 As shown, the data relay box on the ground communicates with the monitoring center in real time, and exchanges information in real time about the hanging / unhanging status of the clamps 2 at the ends of each phase conductor, the remaining power, the latitude and longitude of the actual hanging point, and the latitude and longitude of the designated hanging point.
[0044] The first polygonal panel 7 and the second polygonal panel 77 are supported by a base bearing device 16, which constitutes a first base bearing cavity 22. The magnetic base 13 of the wire end clamp 2 is disposed in the first base bearing cavity 22.
[0045] A magnetic base fixing plate 112 is provided on the top of the first foundation bearing cavity 22. The magnetic base fixing plate 112 is fixedly connected to the second foundation bearing cavity 22 by screws, and the magnetic base 12 is fixedly connected to the bottom surface of the magnetic base fixing plate 112.
[0046] The specific working process is as follows: First, the conductor end clamp 2 and the grounding end clamp 3 are connected to the two ends of the copper wire to form a whole. After the line is confirmed to be de-energized by the drone, the drone's hook 1 simultaneously hooks the conductor end clamp 2 and the grounding end clamp 3 and lifts them to the top of the tower crossarm. The grounding end clamp 3 is then slowly lowered. After contacting the tower crossarm, the grounding end clamp 3 will automatically lock onto the tower crossarm under gravity. Then, the drone lifts the conductor end clamp 2 to the top of the conductor and slowly lowers the conductor end grounding clamp. After contacting the conductor, the conductor end clamp 2 will automatically lock onto the conductor under gravity. Finally, the drone separates and returns, thus completing the installation of one phase grounding wire. The intelligent module 21 (contact detector and intelligent module) embedded in the grounding end clamp 3 and the conductor end clamp 2 can collect the connection status of the grounding end clamp 3 and the conductor end clamp 2 in real time, and interact with the monitoring alarm box through the self-organizing wireless data transmission network and data forwarding.
[0047] The data forwarding box acts as a bridge connecting the grounding clamp 3 and the conductor clamp 2 with the remote monitoring center platform. It embeds a 4G / 5G communication module and a positioning module. On one hand, it forms a local wireless network with the grounding clamp 3 and conductor clamp 2 to obtain real-time connection / removal status information for each phase's grounding clamp 3 and conductor clamp 2. When the connection / removal status changes, it automatically triggers voice and flashing alarms. On the other hand, it connects to the monitoring center via the 4G / 5G network to obtain the latitude and longitude information of the designated connection point issued by the remote monitoring center platform. Simultaneously, it uploads real-time connection / removal status, remaining power, and real-time latitude and longitude data of each phase's grounding clamp 3 and conductor clamp 2 to the remote monitoring center platform. When the real-time latitude and longitude information deviates significantly from the designated connection latitude and longitude information...
[0048] If there is a time limit, it will automatically trigger an audio and flashing alarm.
[0049] Professionally trained drone pilots can operate drones with a payload capacity of 15 kg or more.
[0050] This allows for the installation and removal of grounding wires on complex multi-circuit and split-circuit lines. The device features limit self-locking and gravity self-locking structures, enabling autonomous installation and removal, improving the professionalism of operation and maintenance work, ensuring operational safety, and reducing the workload of safety supervision.
[0051] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.
[0052] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.
Claims
1. A UAV grounding system, comprising a hook (1), a conductor end clamp (2), a grounding end clamp (3), and a grounding wire (4) connecting the conductor end clamp (2) and the grounding end clamp (3); the conductor end clamp (2) is provided with a first self-locking structure (5), and the grounding end clamp (3) is provided with a second self-locking structure; the top of the hook (1), the conductor end clamp (2), and the grounding end clamp (3) are all provided with lifting rings (6), the hook (1) is suspended on the landing device of the UAV by the lifting rings (6), and the conductor end clamp (2) and the grounding end clamp (3) are suspended on the hook (1) by the lifting rings (6), characterized in that, The first self-locking structure (5) is a switch magnetic base, which includes two magnetic base units. A pull plate (9) is provided above the wire end clamp (2). The two magnetic base units are symmetrically arranged below the pull plate (9). A first through hole (14) is provided in the middle of the pull plate (9), and a second through hole (114) is provided at both ends. The lifting ring (6) passes through the first through hole (14) and is movably connected to the pull plate (9); The magnetic base unit includes: a pull rod (10), a spring (12), a magnetic base (13), and a turntable (11) disposed on the side of the magnetic base (13). The magnetic base (13) is fixedly connected to the wire end clamp (2). The pull rod (10) passes through the corresponding second through hole (114), one end is movably connected to the pull plate (9), and the other end is connected to one end of the wire rope (15) wound on the turntable (11). The other end of the wire rope (15) is connected to one end of the spring (12), and the other end of the spring (12) is fixedly connected to the wire end clamp (2). When the drone is lifted, the pulling force causes the turntable (11) to rotate, thereby controlling the switch magnetic base to be in the closed state. When it is released, the pre-tension of the spring (12) causes the turntable (11) to rotate again, controlling the switch magnetic base to be in the open state.
2. The UAV grounding wire system according to claim 1, characterized in that, The wire end clamp (2) includes an integrally formed first polygonal panel (7) and a second polygonal panel (77), which are fixedly connected by fixing bolts (8) and are spaced apart from each other.
3. The UAV grounding wire system according to claim 2, characterized in that, One end of the spring (12) is connected to the wire rope (15), and the other end is sleeved on the fixing bolt (8).
4. The UAV grounding wire system according to claim 2, characterized in that, The top of the first polygonal panel (7) and the second polygonal panel (77) are provided with guide blocks (17), and the guide blocks (17) are provided with third through holes (1114). One end of the pull rod (10) passes through the corresponding third through hole (1114) and second through hole (114) in sequence and is movably connected to the pull plate (9).
5. The UAV grounding wire system according to claim 2, characterized in that, Both the first polygonal panel (7) and the second polygonal panel (77) are metal structural components.
6. The UAV grounding wire system according to claim 4, characterized in that, Both the first polygonal panel (7) and the second polygonal panel (77) include a base support device (16). The base support device (16) has a hollow structure (20) in the middle. Metal rods (19) are extended from both ends of the bottom of the base support device (16), and a vertical metal rod (18) is perpendicular to the base support device (16). A terminal (118) is provided below the vertical metal rod (18).
7. The UAV grounding wire system according to claim 6, characterized in that, A smart module (21) for monitoring the hanging status is provided between the vertical metal rod (18) of the first polygonal panel (7) and the second polygonal panel (77). It communicates with the monitoring center in real time through the ground data forwarding box and interacts in real time with the hanging / removing status, remaining power, latitude and longitude of the actual hanging point, and latitude and longitude of the designated hanging point of each phase conductor end clamp (2).
8. The UAV grounding wire system according to claim 6, characterized in that, The first polygonal panel (7) and the second polygonal panel (77) form a first base bearing cavity (22) by the base bearing device (16), and the magnetic seat (13) of the wire end clamp (2) is disposed in the first base bearing cavity (22).
9. The UAV grounding wire system according to claim 8, characterized in that, A magnetic base fixing plate (112) is provided on the top of the first foundation bearing cavity (22). The magnetic base fixing plate (112) is fixedly connected to the second foundation bearing cavity (22) by screws. The magnetic base (12) is fixedly connected to the bottom surface of the magnetic base fixing plate (112).