Unmanned aerial vehicle iron tower hanging frame anti-falling protection device

Abstract

The invention provides an unmanned aerial vehicle iron tower hanger anti-falling protection device, and relates to the technical field of electric power tools, the unmanned aerial vehicle iron tower hanger anti-falling protection device comprises an unmanned aerial vehicle, an adjustable lifting hook and a protection hanger main body, the adjustable lifting hook is connected below the unmanned aerial vehicle, an electromagnetic locking device is arranged below the adjustable lifting hook, and the electromagnetic locking device is used for locking and connecting the protection hanger main body. The protection hanging rack body is used for being in butt joint with a cross arm, and the lower portion of the protection hanging rack body is connected with a flexible guide rail. The unmanned aerial vehicle brings the protection hanging frame body to the corresponding position above the iron tower and fixes the protection hanging frame body to a cross arm at the head of the iron tower, the flexible guide rail extends to the bottom of the tower, and after an operator under the tower tests that the flexible guide rail is reliably connected, the speed difference protection self-locking device is connected with the safety belt buckle ring in a buckled mode to be matched with the flexible guide rail, so that the protection purpose is achieved; double protection can be provided for power transmission professional pole tower climbing operators in the pole tower climbing and transposition process, and the accident that the operators fall from high positions is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of electric tools, and in particular to an anti-fall protection device for a tower bracket of an unmanned aerial vehicle (UAV). Background Art

[0002] Transmission line towers are pole-shaped or tower-shaped structures used to support conductors, lightning conductors, and accessories in overhead transmission lines. Their core function is to ensure that conductors maintain a safe distance from the ground, crossing objects, and other conductors. They come in a variety of structural types, and their stability directly affects the safe operation of transmission lines. They are indispensable support facilities in power transmission networks. At present, most transmission line towers lack tower climbing protection devices. When operators climb the towers, they do not have corresponding double protection measures, which leads to the safety risk of falling from heights. In particular, the climbing risk factor is even greater when the towers are wet and slippery. The installation of a fixed anti-fall protection device on each tower requires a huge investment, and some other tower climbing protection measures, such as safety belt buckles, require operators to frequently buckle and unlock the belts, which consumes a lot of physical energy. Therefore, the present invention proposes an anti-fall protection device for a transmission line tower bracket to solve the problems existing in the prior art. Summary of the Invention

[0003] In response to the above problems, the present invention proposes an anti-fall protection device for a UAV tower bracket. The anti-fall protection device for a transmission line tower bracket provides double protection for transmission line tower climbing workers during the process of climbing and relocating the tower, preventing accidents of people falling from heights. The structure is stable, lightweight, easy to carry, safe and reliable. It can not only save the physical energy of tower climbing workers, but also provide double protection for tower climbing workers to ensure their personal safety.

[0004] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: A UAV iron tower pylon anti-fall protection device includes a UAV, an adjustable hook, and a protection pylon body. The adjustable hook is connected to the bottom of the UAV, and an electromagnetic locking device is provided below the adjustable hook. The electromagnetic locking device is used to lock and connect the protection pylon body. The protection pylon body is used to dock with a cross arm, and a flexible guide rail is connected to the bottom of the protection pylon body. The flexible guide rail extends to the bottom of the tower, and the flexible guide rail is used to install a speed difference protection self-locking device buckle, and the speed difference protection self-locking device buckle is used to connect the safety belt buckle.

[0005] Further improvements are: the protective bracket body includes a closing rod, an annular sleeve, a strip groove, a hanging ring, and an automatic locking device. The closing rod and the annular sleeve are connected by a rotating connection. The lower end of the closing rod is connected to the strip groove, and the bottom of the strip groove is connected to the hanging ring. The automatic locking device is arranged on one side of the strip groove, and the automatic locking device is used to automatically lock or unlock the strip groove, thereby controlling the strip groove and the cross arm to be fixed or loosened. The automatic locking device has a built-in pressure sensor, an accelerometer and a gyroscope for real-time monitoring of the posture and force state of the protective bracket body. The hanging ring is used to connect the flexible guide rail.

[0006] A further improvement is that the annular sleeve is made of aluminum alloy material, and the hanging ring is made of stainless steel material.

[0007] Further improvements are: the UAV is equipped with a built-in positioning module and a wind-resistant attitude stabilization mechanism. The positioning module is positioned by a combination of a dual-frequency GNSS receiver and a lidar, with real-time dynamic differential correction. The positioning data is transmitted through a 5G link with a delay of ≤50ms. The wind-resistant attitude stabilization mechanism includes an active vector thrust adjustment system, which adjusts the propeller thrust distribution in real time based on the wind speed sensor. The UAV is also equipped with a passive spoiler structure, which is distributed at the tail of the fuselage to form an aerodynamic stability surface.

[0008] Further improvements are as follows: the adjustable hook includes a servo motor screw drive assembly, an electric telescopic rod and a worm gear mechanism, the electric telescopic rod is provided with multiple groups, and the multiple groups of electric telescopic rods are rotatably connected by a damping shaft, the upper end of the electric telescopic rod is connected to the servo motor screw drive assembly, the lower end of the electric telescopic rod is provided with a double V stainless steel hook, and the double V stainless steel hook is used to connect the annular sleeve, the servo motor screw drive assembly is connected to the drone connection base through a mounting part with a pin hole, the electromagnetic locking device is provided on the double V stainless steel hook, the electromagnetic locking device is a combination of an electromagnetic coil and a Hall sensor to realize real-time monitoring of the closed state, and has a redundant power supply system, which automatically switches to the backup battery to maintain the lock for ≥30 minutes when the power is off. At the same time, the locking and opening are controlled by the ground operator.

[0009] Further improvements are: the drone, adjustable hook, protective bracket body, and electromagnetic locking device are controlled by communication, information is transmitted, and communication is carried out with ground operators through a control and communication module. The control and communication module is a wireless signal transmitter that uses wireless communication technology for signal transmission, and the wireless signal transmitter has a power management function for maintaining the battery.

[0010] Further improvements are: the speed difference protection self-locking device buckle is equipped with a transmission mechanism, a speed sensing module, a self-locking mechanism, a reset device and an alarm unit. The speed sensing module is used to monitor the moving speed of the speed difference protection self-locking device buckle in real time. The self-locking mechanism is used to automatically trigger the lock when the moving speed of the speed difference protection self-locking device buckle exceeds a preset threshold. The reset device is used to manually or automatically restore the unlocked state after the speed difference state is released. The alarm unit is used to emit an audible and visual warning signal when locking. In the self-locking mechanism, a metal rack is used to cooperate with a spring-loaded pawl. When the speed of the speed difference protection self-locking device buckle exceeds a certain value, the pawl is embedded in the tooth groove to achieve rigid locking.

[0011] A further improvement is that when the speed difference protection self-locking device is used, it specifically includes the following collaborative working steps: Fall trigger: The transmission mechanism senses abnormal tension and activates the speed sensing module; Threshold judgment: When the speed sensing module confirms that the acceleration is ≥1.5g within 50ms, it is triggered; Emergency locking: The self-locking mechanism completes braking within 0.3 seconds, controlling the falling distance within the required range; Synchronous alarm: Sound and light alarms are activated immediately to prompt operators to take effective risk avoidance measures; Post-event processing: After safety inspection, operate the reset device to restore the equipment.

[0012] Further improvements are: the speed difference protection self-locking device buckle is made of aluminum alloy, the surface is anti-corrosion treated, and it has a built-in battery-powered wireless communication module for transmitting status data to the monitoring terminal in real time. One side of the speed difference protection self-locking device buckle is a buckle body for connecting to the seat belt buckle. The seat belt buckle is made of alloy and has a locking ring for connecting to the seat belt.

[0013] A further improvement is that the flexible guide rail is made of a composite of an insulating rope, a nylon rope and a soft steel wire rope with a diameter of 8-14 mm.

[0014] The beneficial effects of the present invention are: 1. The present invention uses a drone to bring the protection bracket body to the corresponding position above the iron tower and fix it at the cross arm of the iron tower head. The flexible guide rail extends to the bottom of the tower. After the operator under the tower tests that the flexible guide rail is connected reliably, the operator uses the speed difference protection self-locking device to connect the safety belt buckle and the flexible guide rail to achieve the purpose of protection. It can provide double protection for power transmission professional tower climbing operators during the process of climbing and transferring the tower, preventing accidents of people falling from heights. The device has a stable structure, is lightweight, easy to carry, safe and reliable, can save the physical strength of tower climbing operators, and provide double protection for tower climbing operators to ensure their personal safety.

[0015] 2. The present invention controls the UAV, the adjustable hook, the protective bracket body, the electromagnetic locking device and the ground operator through a control and communication module, thereby facilitating control operation as well as unlocking and locking. The invention is easy to use, simple to operate, time-saving, labor-saving, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the present invention; Figure 2 This is a schematic diagram of the protective rack body of the present invention; Figure 3 A schematic diagram of an adjustable hook according to the present invention; Figure 4 Schematic diagram of the speed difference protection self-locking device buckle of the present invention.

[0017] Among them: 1. UAV; 2. Adjustable hook; 3. Protective bracket body; 4. Electromagnetic locking device; 5. Flexible guide rail; 6. Speed ​​difference protection self-locking device buckle; 7. Safety belt buckle; 8. Closing rod; 9. Ring sleeve; 10. Strip groove; 11. Hanging ring; 12. Automatic locking device; 13. Servo motor screw drive assembly; 14. Electric telescopic rod; 15. Worm gear mechanism; 16. Damping shaft; 17. Double V stainless steel hook; 18. Transmission mechanism; 19. Speed ​​sensing module; 20. Self-locking mechanism; 21. Reset device; 22. Alarm unit; 23. Buckle body. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the examples. The examples are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention. Example 1

[0019] according to Figure 1 、 2 As shown in Figures 3 and 4, this embodiment proposes a transmission line UAV tower pylon anti-fall protection device, including a UAV 1, an adjustable hook 2, and a protection pylon body 3. The adjustable hook 2 is connected to the bottom of the UAV 1, and an electromagnetic locking device 4 is provided below the adjustable hook 2. The electromagnetic locking device 4 is used to lock and connect the protection pylon body 3. The protection pylon body 3 is used to dock with the crossarm, and a flexible guide rail 5 is connected below the protection pylon body 3. The flexible guide rail 5 extends to the bottom of the tower, and a speed difference protection self-locking device buckle 6 is installed on the flexible guide rail 5. The speed difference protection self-locking device buckle 6 is used to connect to a safety belt buckle 7.

[0020] The protective hanger body 3 comprises a closing rod 8, an annular sleeve 9, a strip groove 10, a hanging ring 11, and an automatic locking device 12. The closing rod 8 and the annular sleeve 9 are connected by a rotational connection. The lower end of the closing rod 8 is connected to the strip groove 10, and the lower end of the strip groove 10 is connected to the hanging ring 11. The automatic locking device 12 is located on one side of the strip groove 10 and is used to automatically lock or unlock the strip groove 10, thereby controlling the fixing or release of the strip groove 10 with the crossarm. The automatic locking device 12 is equipped with a pressure sensor, accelerometer, and gyroscope for real-time monitoring of the posture and stress state of the protective hanger body 3. The hanging ring 11 is used to connect to the flexible guide rail 5. The annular sleeve 9 is made of aluminum alloy, and the hanging ring 11 is made of stainless steel. The closing rod 8 and the annular sleeve 9 are connected by a rotational connection at the ends. This design allows the closing rod 8 to rotate freely within the annular sleeve 9 to accommodate installation requirements at different angles and positions. The automatic locking device 12 includes an intelligent locking module for automatic locking. The automatic lock consists of a lock housing and a lock cylinder that slides freely up and down within the housing. The lock cylinder's design ensures that it responds quickly to external forces, automatically locking or unlocking the lock. This design ensures flexible coordination between the various components while providing a stable and reliable connection for the entire device. The intelligent locking module incorporates a built-in pressure sensor, accelerometer, and gyroscope to monitor the hanger's posture and force status in real time.

[0021] The ring-shaped sleeve 9 is meticulously crafted from high-strength aluminum alloy. High-strength aluminum alloy, renowned for its lightweight and high strength, not only ensures the device's portability, making installation and operation more flexible and convenient, but also significantly enhances its durability. This material provides long-term, stable operation in a variety of challenging environments, effectively extending the lifespan of the protective device and maintaining excellent performance despite harsh weather conditions such as wind, sun, rain, snow, and frost. High-strength aluminum alloy also exhibits corrosion resistance, maintaining stable performance in humid environments or those with corrosive gases, preventing device failure due to corrosion. Furthermore, aluminum alloy offers excellent processability, making it easy to manufacture in a variety of shapes and sizes, meeting the installation requirements of various towers and drones. The adjustable hook 2 is tightly connected to the ring-shaped sleeve 9. This design allows for flexible adjustment to suit different drone models and towers, ensuring optimal operation regardless of tower size and shape. The flexible design and simple operation of the adjustable hook 2 facilitate quick on-site adjustment and installation. Furthermore, the materials used are rigorously selected to ensure they maintain excellent strength and durability even after extended use. The hanging ring 11 is made of stainless steel. Stainless steel is renowned for its exceptional strength and corrosion resistance, enabling the hanging ring to maintain stable performance in a variety of harsh environments. Whether exposed to intense UV radiation, extreme temperatures and cold weather, or even harsh, humid and rainy climates, the hanging ring maintains excellent working condition, ensuring the reliability and safety of the protective device. Stainless steel also exhibits a certain degree of tensile strength, allowing it to withstand significant tensile forces, further enhancing the safety of the protective device. Furthermore, the stainless steel surface finish is highly resistant to dust and dirt accumulation, making it easy to clean and maintain, ensuring the hanging ring maintains its excellent appearance and functionality even after extended use. In the automatic locking device 12, the locking cylinder within the lock housing is automatically locked and unlocked by a sophisticated spring mechanism. This design ensures that when the drone hoists the fall arrest device into position on the crossarm above the tower, the automatic lock quickly and accurately locks, effectively preventing the fall arrest device from falling off, providing a solid and reliable safety feature. The precise spring device not only ensures the smoothness and stability of the lock column movement, but also maintains the firmness of the lock under various external forces, greatly reducing the risk of loss due to falling. The design of the spring device has been precisely calculated and optimized, and can provide appropriate locking and unlocking forces under different external force conditions, ensuring that the automatic lock can work normally in various situations. At the same time, the selection of spring materials has also been strictly screened to ensure that it can still maintain good elasticity and durability after long-term use. The protection bracket body 3 also has a rapid braking device. Through an electromagnetically triggered mechanical claw, the protection bracket body of the transmission tower falls and is locked with the tower crossarm or tower body at the moment of slipping and falling due to uncontrollable external forces such as flying birds, foreign objects, strong winds, etc., playing a double protection role.

[0022] The drone 1 is equipped with a positioning module and a wind-resistant attitude stabilization mechanism. The positioning module is positioned by a combination of a dual-frequency GNSS receiver and a lidar, with real-time dynamic differential correction. The positioning data is transmitted via a 5G link with a delay of ≤50ms. The wind-resistant attitude stabilization mechanism includes an active vector thrust adjustment system, which adjusts the propeller thrust distribution in real time based on a wind speed sensor. The drone is also equipped with a passive spoiler structure, which is distributed at the tail of the fuselage to form an aerodynamic stability surface.

[0023] The adjustable hook 2 includes a servo motor screw drive assembly 13, an electric telescopic rod 14, and a worm gear mechanism 15. Multiple sets of electric telescopic rods 14 are rotatably connected via a damping shaft 16. The upper end of the electric telescopic rod 14 is connected to the servo motor screw drive assembly 13, while the lower end is provided with a double-V stainless steel hook 17 for connecting to the annular sleeve 9. The servo motor screw drive assembly 13 is connected to the drone 1 connection base via a mounting member with a latch hole. The electromagnetic locking device 4 is mounted on the double-V stainless steel hook 17. This electromagnetic locking device 4 is a combination of an electromagnetic coil and a Hall effect sensor, enabling real-time monitoring of the closed state. It also features a redundant power supply system that automatically switches to a backup battery to maintain the lock for 30 minutes or longer in the event of a power outage. Locking and opening are controlled by a ground operator. The electric telescopic rod 14 drives the height, with linear displacement driven by the servo motor screw drive assembly 13; angular rotation is achieved via the worm gear mechanism 15, enabling continuous and stepless adjustment. The upper part has a mounting part with a pin hole, which is connected to the base at one end of the drone. There are two damping shafts 16 in different directions in the middle to reduce the swing rate and swing amplitude of the flexible link. The lower part is a double V stainless steel hook 17 for hooking the protective bracket body 3.

[0024] The drone 1, adjustable hook 2, protective pylon 3, and electromagnetic locking device 4 communicate with ground operators through a control and communication module. The control and communication module is a wireless signal transmitter that utilizes wireless communication technology for signal transmission. The wireless signal transmitter also features power management functions to maintain battery life. The control and communication module ensures effective information transmission and communication between the drone 1 and ground control personnel, enabling them to accurately deploy, retract, lock, and release the drone 1 and its attached protective pylon 3. Furthermore, it automatically issues an alarm in the event of a drone 1 crash, promptly notifying the operator and allowing them to quickly and effectively implement rescue measures. This feature significantly enhances drone operation safety and provides operators with a valuable window of opportunity to respond to emergencies. The module also features a signal enhancement function, enabling signal transmission over longer distances, ensuring that operators receive timely alerts. The wireless signal transmitter utilizes advanced wireless communication technology to ensure stable and reliable signal transmission. Furthermore, the wireless signal transmitter's power management has been optimized to maximize battery life while ensuring effective signal transmission. A key feature is its advanced low-power design. This means the wireless signal transmitter can operate continuously for extended periods without battery replacement or recharging, significantly reducing maintenance costs and operational complexity. Data is transmitted between the drone 1 and the protective pylon 3 via wireless communication (5G / LoRa) in real time. The edge computing unit (ECU) analyzes the data and triggers protective actions, with a response time of ≤0.1 seconds.

[0025] The speed difference protection self-locking device buckle 6 has a built-in transmission mechanism 18, a speed sensing module 19, a self-locking mechanism 20, a reset device 21 and an alarm unit 22. The speed sensing module 19 is used to monitor the moving speed of the speed difference protection self-locking device buckle 6 in real time. The self-locking mechanism 20 is used to automatically trigger the lock when the moving speed of the speed difference protection self-locking device buckle 6 exceeds a preset threshold. The reset device 21 is used to manually or automatically restore the unlocked state after the speed difference state is released. The alarm unit 22 is used to emit an audible and visual warning signal when locking. In the self-locking mechanism 20, a metal rack is combined with a spring-loaded pawl. When the speed of the speed difference protection self-locking device buckle 6 exceeds a certain value, the pawl is embedded in the tooth groove to achieve rigid locking.

[0026] When the speed difference protection self-locking device buckle 6 is used, the following collaborative working steps are specifically included: Fall trigger: the transmission mechanism 18 senses abnormal tension and activates the speed sensing module 19; Threshold judgment: When the speed sensing module 19 confirms that the acceleration is ≥1.5g within 50ms, it is triggered; Emergency locking: The self-locking mechanism 20 completes braking within 0.3 seconds, controlling the falling distance within the required range; Synchronous alarm: Sound and light alarms are activated immediately to prompt operators to take effective risk avoidance measures; Post-event processing: After a safety check, operate the reset device 21 to restore the equipment.

[0027] The speed difference protection self-locking device buckle 6 is made of aluminum alloy, the surface is anti-corrosion treated, and it has a built-in battery-powered wireless communication module for transmitting status data to the monitoring terminal in real time. One side of the speed difference protection self-locking device buckle 6 is a buckle body 23, which is used to connect to the seat belt buckle 7. The seat belt buckle 7 is made of alloy and has a locking ring for connecting the seat belt.

[0028] The flexible guide rail 5 is made of a composite of an insulating rope, a nylon rope and a soft steel wire rope with a diameter of 8-14 mm. Example 2

[0029] according to Figure 1 、 2 As shown in Figures 3 and 4, this embodiment provides a transmission line tower bracket anti-fall protection device, including the following steps: During use, first connect the upper part of the adjustable hook 2 to the base at the bottom end of the drone 1, and then use the adjustable hook 2 to hook the annular sleeve 9 in the main body 3 of the transmission tower anti-fall protection bracket. After preparation, the drone operator operates the drone 1 to take off to the appropriate position of the tower head roughly on the tower head crossbeam. The drone operator identifies the position of the crossarm through the visual system and adjusts the angle of the adjustable hook 2 so that the strip groove 10 of the bracket is aligned with the crossarm. After contacting the crossarm, the automatic locking device 12 is locked and fixed. After the pressure sensor confirms the locked state, the electromagnetic locking device 4 of the adjustable hook 2 is opened and disengaged.

[0030] The flexible guide rail 5 is secured to the tower head crossarm at its upper end by the protective bracket body 3 and the tower head crossarm, while its lower end is securely fixed to the tower base. The operator preparing to climb the tower will open the speed differential protection self-locking device buckle 6 and insert it onto the flexible guide rail 5. The operator will then connect the backup safety rope terminal loop of their safety belt to the safety belt buckle 7, and the operator can then ascend the tower.

[0031] After the workers have completed all the work on the tower and have safely and smoothly gotten off the tower, the drone operator will lift the drone 1 to the upper end of the tower head crossbeam again, and use the adjustable hook 2 to hook the annular sleeve 9 in the protection bracket body 3. When the drone 1 is lifted, the automatic locking device 12 opens, and the protection bracket body 3 automatically detaches from the tower head crossbeam. The drone 1 will bring the protection bracket body 3 and the flexible guide rail 5 back to the ground, and the entire mission is completed.

[0032] The transmission line tower pylon anti-fall protection device uses a drone (1) to carry the protective pylon body (3) to a corresponding position above the tower and secure it to the tower's head crossarm. A flexible guide rail (5) extends to the tower base. After testing the secure connection of the flexible guide rail (5), the operator below the tower uses a speed differential protection self-locking device (6) to connect a safety belt buckle (7) to the flexible guide rail (5) to achieve protection. This device provides dual protection for transmission line tower climbers during the climbing and relocation process, preventing accidents involving falls from heights. The device is robust, lightweight, portable, and safe, saving climbers' energy while providing dual protection to ensure their personal safety. Furthermore, the drone (1), adjustable hook (2), protective pylon body (3), and electromagnetic locking device (4) communicate with ground operators through a control and communication module, enabling convenient control, information transmission, and communication. This facilitates operation, unlocking, and locking, resulting in ease of use, simplicity of operation, and a time-saving, labor-saving, safe, and reliable operation.

[0033] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A UAV iron tower hanger anti-fall protection device, comprising a UAV (1), an adjustable hook (2), and a protective hanger body (3), characterized in that: The adjustable hook (2) is connected to the bottom of the UAV (1), and an electromagnetic locking device (4) is provided below the adjustable hook (2), the electromagnetic locking device (4) is used to lock and connect the protection hanger body (3), the protection hanger body (3) is used to dock with the cross arm, and a flexible guide rail (5) is connected below the protection hanger body (3); The flexible guide rail (5) extends to the bottom of the tower, and a speed difference protection self-locking device buckle (6) is installed on the flexible guide rail (5), and the speed difference protection self-locking device buckle (6) is used to connect to a safety belt buckle (7).

2. The anti-fall protection device for a UAV tower bracket according to claim 1, characterized in that: The protective rack body (3) comprises a closing rod (8), an annular sleeve (9), a strip groove (10), a hanging ring (11), and an automatic locking device (12). The closing rod (8) and the annular sleeve (9) are connected by a rotational connection. The lower end of the closing rod (8) is connected to the strip groove (10), and the lower end of the strip groove (10) is connected to the hanging ring (11). The automatic locking device (12) is arranged on one side of the strip groove (10), and the automatic locking device (12) is used to automatically lock or unlock the strip groove (10), thereby controlling the strip groove (10) and the cross arm to be fixed or loosened. The automatic locking device (12) is built with a pressure sensor, an accelerometer and a gyroscope for real-time monitoring of the posture and stress state of the protective rack body (3). The hanging ring (11) is used to connect the flexible guide rail (5).

3. The anti-fall protection device for a UAV tower bracket according to claim 2, characterized in that: The annular sleeve (9) is made of aluminum alloy material, and the hanging ring (11) is made of stainless steel material.

4. The anti-fall protection device for a UAV tower bracket according to claim 1, characterized in that: The UAV (1) is equipped with a positioning module and a wind-resistant attitude stabilization mechanism. The positioning module is positioned by a combination of a dual-frequency GNSS receiver and a laser radar, and performs real-time dynamic differential correction. Positioning data is transmitted via a 5G link with a delay of ≤50ms. The wind-resistant attitude stabilization mechanism includes an active vector thrust adjustment system that adjusts propeller thrust distribution in real time based on a wind speed sensor. The UAV is also equipped with a passive spoiler structure distributed at the tail of the fuselage to form an aerodynamic stability surface.

5. The anti-fall protection device for a UAV tower bracket according to claim 2, characterized in that: The adjustable hook (2) includes a servo motor screw drive assembly (13), an electric telescopic rod (14) and a worm gear mechanism (15). The electric telescopic rod (14) is provided with a plurality of groups, and the plurality of electric telescopic rods (14) are rotatably connected to each other through a damping shaft (16). The upper end of the electric telescopic rod (14) is connected to the servo motor screw drive assembly (13). The lower end of the electric telescopic rod (14) is provided with a double V stainless steel hook (17), and the double V stainless steel hook (17) is used to connect the annular sleeve (9). The servo motor screw drive assembly (13) is connected to the drone (1) through a mounting piece with a pin hole. The electromagnetic locking device (4) is provided on the double V stainless steel hook (17). The electromagnetic locking device (4) is a combination of an electromagnetic coil and a Hall sensor to achieve real-time monitoring of the closed state and has a redundant power supply system. When the power is cut off, it automatically switches to a backup battery to maintain the lock for ≥30 minutes. At the same time, the ground operator controls the locking and opening.

6. The anti-fall protection device for a UAV tower bracket according to claim 1, characterized in that: The UAV (1), the adjustable hook (2), the protective bracket body (3), and the electromagnetic locking device (4) perform communication control, information transmission, and communication with a ground operator via a control and communication module. The control and communication module is a wireless signal transmitter that uses wireless communication technology for signal transmission, and the wireless signal transmitter has a power management function for maintaining the battery.

7. The anti-fall protection device for a UAV tower bracket according to claim 1, characterized in that: The speed differential protection self-locking device buckle (6) is built with a transmission mechanism (18), a speed sensing module (19), a self-locking mechanism (20), a reset device (21) and an alarm unit (22). The speed sensing module (19) is used to monitor the moving speed of the speed differential protection self-locking device buckle (6) in real time. The self-locking mechanism (20) is used to automatically trigger the lock when the moving speed of the speed differential protection self-locking device buckle (6) exceeds a preset threshold. The reset device (21) is used to manually or automatically restore the unlocking state after the speed differential state is released. The alarm unit (22) is used to emit an audible and visual warning signal when locked. In the self-locking mechanism (20), a metal rack is used to cooperate with a spring-loaded pawl. When the speed of the speed differential protection self-locking device buckle (6) exceeds a certain value, the pawl is embedded in the tooth groove to achieve rigid locking.

8. The anti-fall protection device for a UAV tower bracket according to claim 7, characterized in that: When the speed difference protection self-locking device buckle (6) is used, it specifically includes the following collaborative working steps: Fall trigger: the transmission mechanism (18) senses abnormal tension and activates the speed sensing module (19); Threshold judgment: When the speed sensing module (19) confirms that the acceleration is ≥1.5g within 50ms, it is triggered; Emergency locking: The self-locking mechanism (20) completes braking within 0.3 seconds, controlling the falling distance within the required range; Synchronous alarm: Sound and light alarms are activated immediately to prompt operators to take effective risk avoidance measures; Post-event processing: After safety inspection, operate the reset device (21) to restore the equipment.

9. The anti-fall protection device for a UAV tower bracket according to claim 8, characterized in that: The speed differential protection self-locking device buckle (6) is made of aluminum alloy and has a built-in battery-powered wireless communication module for transmitting status data to a monitoring terminal in real time. One side of the speed differential protection self-locking device buckle (6) is a buckle body (23) for connecting to a seat belt buckle (7). The seat belt buckle (7) is made of alloy and has a locking ring for connecting to a seat belt.

10. The anti-fall protection device for a UAV tower bracket according to claim 1, characterized in that: The flexible guide rail (5) is made of a composite of an insulating rope, a nylon rope, and a soft steel wire rope with a diameter of 8-14 mm.

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