Unmanned aerial vehicle mounting support assembly for low-altitude logistics

Abstract

The unmanned aerial vehicle mounting support assembly for low-altitude logistics comprises an unmanned aerial vehicle body, a buffering assembly, a containing box, an emergency parachute, an air bag, a baffle, a clamping assembly and a visual recognition camera, a support body is installed at the lower end of the unmanned aerial vehicle body, and the buffering assembly is arranged at the lower end of the support body; the buffer assembly comprises a hydraulic damper and a deformable honeycomb structure plate, the placing box is connected to the unmanned aerial vehicle body through a clamping mechanism, the emergency parachute is arranged on the unmanned aerial vehicle body, the air bag is arranged at the lower end of the placing box and connected with a micro air pump, and the clamping assembly is arranged in the placing box and connected with a micro air pump. The visual identification camera is mounted at the opening of the placement box; through cooperative work of the clamping mechanism and the clamping assembly, automatic moving-in and moving-out of cargoes are achieved, and the arranged air bag can further protect the cargoes against violent impact under the conditions that the unmanned aerial vehicle lands emergently and the like.

Description

Technical Field

[0001] This invention relates to the field of logistics engineering technology, specifically to a drone mounting bracket assembly for low-altitude logistics. Background Technology

[0002] With the rapid development of the logistics industry and the increasing demands for delivery efficiency, low-altitude logistics is gradually emerging as a new logistics model. Low-altitude logistics mainly utilizes aircraft such as drones to transport goods in low-altitude airspace. It has significant advantages such as high flexibility and no restrictions from ground traffic congestion, making it particularly suitable for scenarios such as remote areas, emergency material delivery, and last-mile delivery in cities.

[0003] Existing drone mounting systems present numerous inconveniences in cargo loading and unloading. Some systems are structurally simple, lacking automated loading and unloading capabilities, requiring manual placement and removal of cargo. This is not only inefficient but also difficult to operate in special environments (such as high altitudes or inclement weather), posing certain safety hazards. Even some mounting systems with basic automation functions have a low degree of automation, unable to flexibly adjust to different cargo sizes and shapes, resulting in an unsmooth loading and unloading process. During transportation, the stability of cargo fixation directly affects transportation safety and cargo integrity. Existing drone mounting systems mostly use simple straps or buckles for cargo fixation, failing to accurately secure cargo based on its weight, shape, and size, easily leading to cargo movement, shaking, or even detachment during flight. Furthermore, existing mounting systems lack real-time cargo status monitoring capabilities, making it impossible to promptly understand the cargo's condition during transportation, such as whether it has been squeezed or collided, hindering timely action when problems arise. This not only increases the workload of maintenance personnel but may also lead to errors in detection results due to human factors. Therefore, we need to propose a drone mounting bracket assembly for low-altitude logistics. Summary of the Invention

[0004] The purpose of this invention is to provide a drone mounting bracket assembly for low-altitude logistics, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The mounting bracket assembly for low-altitude logistics drones includes: The drone body, with a support body installed at the lower end of the drone body; A buffer assembly is disposed at the lower end of the support body, and the buffer assembly includes a hydraulic damper and a deformable honeycomb structure plate. A placement box is connected to the drone body via a locking mechanism, and a locator is installed on the placement box; The locking mechanism includes an electromagnet, an adsorption plate, a drive motor, and a limiting plate. The electromagnet is installed on the drone body, the adsorption plate is installed on the placement box, and the electromagnet is adsorbed and connected to the adsorption plate. The drive motor is installed on the bracket body, and the drive motor drives the limiting plate to rotate and limit the lower end of the placement box. An emergency parachute is mounted on the drone itself. An airbag is located at the bottom of the placement box and is connected to a miniature air pump. A baffle is provided at the opening of the placement box, and the baffle is rotated by a servo motor; A clamping assembly, disposed within a placement box, is used to clamp goods and enable automatic loading and unloading of goods; A visual recognition camera is installed at the opening of the container to detect the volume and position of the goods.

[0006] Preferably, the hydraulic damper is connected to the support body and the deformable honeycomb structure plate at both ends, and a support plate is provided on the side of the deformable honeycomb structure plate away from the damper, and a first rubber layer is provided on the support plate.

[0007] Preferably, the drive motor is mounted on the bracket body via a mounting frame, and the output end of the drive motor is connected to a limiting plate via a rotating rod. The limiting plate is in contact with the lower end of the placement box.

[0008] Preferably, the opening of the placement box is provided with two connecting plates, and the two ends of the baffle are rotatably connected between the two connecting plates by pins. The servo motor is installed on the placement box, and the output end of the servo motor is connected to the pin that passes through the connecting plate.

[0009] Preferably, the clamping assembly includes a first electric guide rail and a second electric guide rail, the first electric guide rail being disposed on both sides of the inner cavity of the placement box, and the second electric guide rail being mounted on the moving end of the first electric guide rail.

[0010] Preferably, the clamping assembly further includes an electric push rod, a mounting plate, a pressure sensor, and a clamping plate. The cylinder fixed end of the electric push rod is installed on the moving end of the second electric guide rail, and the output end of the electric push rod is connected to the mounting plate. The pressure sensor is installed between the mounting plate and the clamping plate, and a second rubber layer is provided on the side of the clamping plate away from the pressure sensor.

[0011] Preferably, the miniature air pump is installed at the lower end of the placement box, and the miniature air pump is connected to the airbag through a connecting pipe, and the airbag is made of a high-strength, wear-resistant, flexible material.

[0012] Preferably, an acrylic protective cover is installed on the outer side of the lens of the visual recognition camera, and a micro brush is provided on one side of the protective cover. The micro brush is driven to rotate by a micro stepper motor.

[0013] Preferably, the visual recognition camera also integrates an infrared fill light to provide illumination when there is insufficient light.

[0014] Preferably, the placement box has an installation slot, in which a PLC controller and a battery are installed. The PLC controller, battery, positioner, electromagnet, drive motor, emergency parachute, miniature air pump, servo motor, visual recognition camera, first electric guide rail, second electric guide rail, electric push rod, pressure sensor, miniature stepper motor and infrared fill light are electrically connected.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention achieves automatic loading and unloading of goods through the coordinated operation of a locking mechanism and a clamping assembly. The locking mechanism utilizes the adsorption connection between an electromagnet and an adsorption plate, and a drive motor to limit the lower end of the placement box, ensuring a stable connection between the placement box and the drone body and facilitating operation. The clamping assembly, within the placement box, precisely clamps and moves the goods based on the volume and position information detected by a visual recognition camera. This eliminates the need for manual operation in dangerous environments such as high altitudes, significantly improving the efficiency of loading and unloading goods while effectively reducing safety risks.

[0016] This invention ensures transportation safety through a triple design of "dual fixation + status monitoring + emergency protection." Firstly, the combination of hydraulic dampers and deformable honeycomb structure panels in the buffer assembly effectively absorbs and disperses the impact energy experienced by the drone during flight, providing reliable cushioning protection for the cargo and reducing damage caused by vibration and collisions. Secondly, the clamping assembly can precisely fix the cargo according to its actual condition, ensuring its stability during transportation. Simultaneously, the locator installed on the placement box can monitor the cargo's location in real time, enabling timely rescue and cargo retrieval should the drone malfunction or deviate from its flight path. Furthermore, although existing technologies do not explicitly mention safety features such as airbags, the airbags in this invention can further protect the cargo from severe impacts in situations such as emergency drone landings. Moreover, through devices such as visual recognition cameras, real-time monitoring of the cargo's status can be achieved, allowing for timely detection and handling of problems during transportation, significantly improving the stability and safety of cargo transport. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention; Figure 3 This is a side sectional view of the present invention. Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a cross-sectional view of the placement box of the present invention; Figure 6 This is a schematic diagram of the exploded structure of the present invention.

[0018] In the diagram: 1. UAV body; 2. Support frame body; 3. Hydraulic damper; 4. Deformable honeycomb structure panel; 5. Placement box; 6. Positioner; 7. Electromagnet; 8. Adsorption plate; 9. Drive motor; 10. Limiting plate; 11. Emergency parachute; 12. Airbag; 13. Miniature air pump; 14. Baffle; 15. Visual recognition camera; 16. First rubber layer; 17. Mounting frame; 18. Connecting plate; 19. First electric guide rail; 20. Second electric guide rail; 21. Electric push rod; 22. Mounting plate; 23. Pressure sensor; 24. Clamping plate; 25. Second rubber layer; 26. Connecting pipe; 27. Protective cover; 28. Miniature brush; 29. ​​Miniature stepper motor; 30. Infrared supplementary light; 31. Mounting slot; 32. PLC controller; 33. Battery; 34. Support plate; 35. Servo motor. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-6 The present invention provides a technical solution: The mounting bracket assembly for low-altitude logistics drones includes: The drone body 1 has a support body 2 installed at its lower end; The buffer assembly is located at the lower end of the support body 2. The buffer assembly includes a hydraulic damper 3 and a deformable honeycomb structure plate 4. The two ends of the hydraulic damper 3 are connected to the support body 2 and the deformable honeycomb structure plate 4 respectively. The deformable honeycomb structure plate 4 is provided with a support plate 34 on the side away from the damper. A first rubber layer 16 is provided on the support plate 34. When the drone body 1 lands, the buffer assembly at the lower end of the support body 2 comes into play: the hydraulic damper 3 absorbs the vertical impact energy through damping (liquid damping dissipates kinetic energy), and the deformable honeycomb structure plate 4 is made of aluminum honeycomb core material. Its working principle is that when the drone body 1 is impacted upon landing, the honeycomb structure undergoes orderly, layer-by-layer plastic crushing deformation. During this process, a large amount of impact kinetic energy is dissipated through material deformation, thus providing a buffering effect. It is understood that the deformable honeycomb structure plate 4 is not limited to aluminum; any other porous or honeycomb material with similar energy absorption characteristics falls within the scope of this invention. For example, it can also be a buffer plate made of paper-based honeycomb, polymer honeycomb such as polypropylene (PP), or other metal / non-metal multicellular materials. The core of this invention is that the structure can absorb energy under impact load through irreversible deformation (plastic deformation or structural failure), and the first rubber layer 16 on the support plate 34 reduces rigid collisions (rubber elastic deformation buffering).

[0021] Placement box 5 is connected to the drone body 1 via a locking mechanism, and a locator 6 is installed on the placement box 5. The locking mechanism includes an electromagnet 7, an adsorption plate 8, a drive motor 9, and a limiting plate 10. The electromagnet 7 is mounted on the UAV body 1, the adsorption plate 8 is mounted on the placement box 5, and the electromagnet 7 and the adsorption plate 8 are adsorbed and connected. The drive motor 9 is mounted on the bracket body 2, and the drive motor 9 drives the limiting plate 10 to rotate and limit the lower end of the placement box 5. The drive motor 9 is mounted on the bracket body 2 through the mounting frame 17, and the output end of the drive motor 9 is connected to the limiting plate 10 through a rotating rod. The limiting plate 10 is in contact with the lower end of the placement box 5. When connecting the placement box 5 to the UAV body 1, the PLC controller 32 uses a dual fixing principle of "electromagnetic adsorption + mechanical limiting". First, it controls the electromagnet 7 on the UAV body 1 to be energized (the current generates a magnetic field), adsorbing the adsorption plate 8 on the top of the placement box 5 to achieve initial fixing. At the same time, the drive motor 9 mounted on the bracket body 2 through the mounting frame 17 is started (the motor output drives the mechanical rotation through the rotating rod), causing the limiting plate 10 to rotate until it is in close contact with the lower end of the placement box 5, forming a longitudinal limit. The dual fixing structure prevents the placement box 5 from shaking or falling off during flight. Compared with a single fixing method, the stability is improved, laying the foundation for transportation safety.

[0022] Meanwhile, after the drone body 1 takes off, the locator 6 on the placement box 5 collects the location in real time. The locator 6 can be a high-precision GPS positioning module or other suitable positioning equipment to obtain the location information of the placement box 5 (i.e., the cargo) in real time.

[0023] When separating the placement box 5 from the drone body 1: the PLC controller 32 starts the servo motor 35 on the placement box 5 (the servo motor 35 precisely controls the speed and angle), and its output drives the pin rod passing through the connecting plate 18 to rotate, causing the baffle 14 (rotatably connected between the two connecting plates 18) to open. The PLC controller 32 inside the placement box 5 sends a separation signal to the flight controller of the drone body 1 through the wireless data transmission module. After receiving the signal, the flight controller immediately cuts off the power to the electromagnet 7, causing it to demagnetize and separate from the adsorption plate 8, and can control the drive motor 9 to rotate to retract the limit plate 1 according to the command, that is, the placement box 5 separates from the drone body 1.

[0024] Emergency parachute 11 is mounted on the UAV body 1; Airbag 12 is located at the lower end of the placement box 5 and is connected to a miniature air pump 13. The miniature air pump 13 is installed at the lower end of the placement box 5 and is connected to the airbag 12 through a connecting pipe 26. The airbag 12 is made of a high-strength, wear-resistant flexible material. Throughout the flight, the emergency parachute 11 (UAV body 1) and the miniature air pump 13 (lower end of the placement box 5) are in standby mode (PLC controller 32 monitors flight parameters in real time, such as sudden drop in altitude, abnormal speed, etc.). Once an abnormality is detected, the emergency protection program is immediately triggered.

[0025] If the PLC controller 32 detects serious abnormalities such as loss of control of the UAV body 1 or engine failure during flight (flight parameters exceeding the safety threshold triggering an alarm), it will separate the UAV body 1 from the placement box 5. At the same time, it will immediately send a trigger signal to the emergency parachute 11, and the parachute will quickly deploy to slow down the descent speed. This process achieves the "in-air deceleration" effect through the principle of "abnormal monitoring - signal triggering - component action" to reduce the risk of falling.

[0026] In the event of an accidental crash, after the drone body 1 separates from the placement box 5, the PLC controller 32 sends a trigger signal to the emergency parachute 11. The parachute deploys rapidly, and the PLC controller 32 simultaneously activates the micro air pump 13 (which pressurizes and delivers gas), quickly inflating the airbag 12 at the bottom of the placement box 5 through the connecting pipe 26. (The airbag 12 is made of high-strength, wear-resistant, and flexible material; the flexible material's deformation absorbs impact force to adapt to different usage environments and potential impacts.) This triple protection of "in-flight deceleration - fall cushioning - landing protection" significantly reduces the damage rate to the cargo and the drone body 1. The material properties of the airbag 12 and the cushioning components are suitable for different landing environments such as concrete and grass, improving the equipment's adaptability.

[0027] Baffle 14 is provided at the opening of the placement box 5 and is driven to rotate by servo motor 35. Two connecting plates 18 are provided at the opening of the placement box 5. The two ends of baffle 14 are rotatably connected between the two connecting plates 18 by pins. Servo motor 35 is installed on the placement box 5 and the output end of servo motor 35 is connected to the pin that passes through the connecting plate 18. When loading and unloading goods, the servo motor 35 drives the baffle 14 to rotate via the pin, thereby adjusting the opening and closing of the placement box 5 so that goods can be placed and taken out of the placement box 5.

[0028] A clamping assembly is installed inside the placement box 5 to clamp goods and enable automatic loading and unloading of goods. The clamping assembly includes a first electric guide rail 19 and a second electric guide rail 20. The first electric guide rail 19 is located on both sides of the inner cavity of the placement box 5, and the second electric guide rail 20 is installed on the moving end of the first electric guide rail 19. The clamping assembly also includes an electric push rod 21, a mounting plate 22, a pressure sensor 23, and a clamping plate 24. The cylinder fixed end of the electric push rod 21 is installed on the moving end of the second electric guide rail 20, and the output end of the electric push rod 21 is connected to the mounting plate 22. The pressure sensor 23 is installed between the mounting plate 22 and the clamping plate 24. A second rubber layer 25 is provided on the side of the clamping plate 24 away from the pressure sensor 23. After receiving the visual recognition data, the PLC controller 32 controls the first electric guide rail 19 (horizontal) and the second electric guide rail 20 (vertical) inside the placement box 5 to move according to the principle of "horizontal + vertical coordinated movement", thereby moving the clamping assembly to directly above the goods. Then, the electric push rod 21 extends (driven by a motor and hydraulic / pneumatic transmission) and pushes the mounting plate 22 and the clamping plate 24 closer to the goods until they are in contact with the surface of the goods. During the clamping process, pressure sensor 23 (installed between mounting plate 22 and clamping plate 24) monitors the force in real time (the pressure signal is converted into an electrical signal and transmitted to PLC controller 32). When the force reaches a preset safety threshold, the sensor sends a signal to stop the electric push rod 21 from extending. This process avoids damage to the goods due to excessive clamping force and also prevents the goods from falling off due to insufficient force. Finally, the guide rail reverses its movement to smoothly move the goods into the placement box 5. The entire clamping process is automated, eliminating the need for manual handling and reducing labor costs and operational errors. Pressure sensor 23 precisely controls the force, and together with the second rubber layer 25 on the outside of clamping plate 24, it provides double protection against crushing damage to the goods. The second rubber layer 25 also increases the friction between clamping plate 24 and the goods, thus protecting the goods as well.

[0029] When retrieving goods, the first electric guide rail 19 and the second electric guide rail 20 move according to the principle of "reverse path movement," driving the clamping assembly to the opening of the placement box 5. The electric push rod 21 extends (the extension and retraction of the electric push rod 21 drives the displacement of the goods), smoothly moving the goods out. After unloading, the clamping assembly resets, the baffle 14 closes, and it awaits the next operation. The entire unloading process is automated, requiring no manual connection, and is suitable for different unloading scenarios (such as narrow spaces). The component reset design improves the equipment's recycling rate and reduces the operation interval time.

[0030] A visual recognition camera 15 is installed at the opening of the placement box 5 to detect the volume and position of the goods. An acrylic protective cover 27 is installed on the outside of the lens of the visual recognition camera 15. A micro brush 28 is provided on one side of the protective cover 27. The micro brush 28 is driven to rotate by a micro stepper motor 29. An infrared supplementary light 30 is also integrated on the visual recognition camera 15 to provide illumination when there is insufficient light.

[0031] Cargo Detection and Positioning: After the visual recognition camera 15 at the opening of the box 5 is activated, it detects the volume and position of the cargo to be transported in real time. This process is supported by the principle of "image recognition technology + signal transmission logic". The infrared supplement light 30 integrated in the camera will automatically turn on when the light is insufficient (light sensor triggers power supply) to ensure that the visual recognition camera 15 can work normally in various environments. An acrylic protective cover 27 is installed on the outside of the lens of the visual recognition camera 15. The protective cover 27 can prevent dust, debris and other objects from entering the lens and affecting the visual recognition effect. At the same time, the micro stepper motor 29 on the outside of the camera lens drives the micro brush 28 to rotate (the micro stepper motor 29 rotates forward and backward to drive mechanical transmission) to clean the dust on the surface of the acrylic protective cover 27 and avoid obstructing the detection line of sight. No manual assistance is required for positioning, adapting to complex environments such as dim lighting and dusty conditions, significantly reducing detection errors and providing accurate parameter basis for subsequent clamping.

[0032] In the above embodiment, the placement box 5 has an installation slot 31, in which a PLC controller 32 and a battery 33 are installed. The PLC controller 32 and the battery 33 supply power to all electrical components on the placement box 5 and interact with the flight controller on the UAV body 1 through a wireless communication module. The flight controller is electrically connected to the electromagnet 7, drive motor 9, and emergency parachute 11 on the UAV body 1. The PLC controller 32, battery 33, locator 6, electromagnet 7, drive motor 9, emergency parachute 11, micro air pump 13, servo motor 35, visual recognition camera 15, first electric guide rail 19, second electric guide rail 20, electric push rod 21, pressure sensor 23, micro stepper motor 29, and infrared fill light 30 are electrically connected.

[0033] It should be noted that the specific models and specifications of the PLC controller 32, battery 33, positioner 6, electromagnet 7, drive motor 9, emergency parachute 11, miniature air pump 13, servo motor 35, visual recognition camera 15, first electric guide rail 19, second electric guide rail 20, electric push rod 21, pressure sensor 23, miniature stepper motor 29, and infrared supplementary light 30 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mounting bracket assembly for low-altitude logistics drones, characterized in that, include: The unmanned aerial vehicle (UAV) body (1) has a support body (2) installed at its lower end; A buffer assembly is disposed at the lower end of the support body (2), and the buffer assembly includes a hydraulic damper (3) and a deformable honeycomb structure plate (4); Placement box (5), which is connected to the UAV body (1) by a locking mechanism, and a locator (6) is installed on the placement box (5); The locking mechanism includes an electromagnet (7), an adsorption plate (8), a drive motor (9), and a limiting plate (10). The electromagnet (7) is installed on the drone body (1), the adsorption plate (8) is installed on the placement box (5), and the electromagnet (7) is adsorbed and connected to the adsorption plate (8). The drive motor (9) is installed on the bracket body (2), and the drive motor (9) drives the limiting plate (10) to rotate and limit the lower end of the placement box (5). An emergency parachute (11) is mounted on the UAV body (1); Airbag (12), the airbag (12) is located at the lower end of the placement box (5), and the airbag (12) is connected to a miniature air pump (13); A baffle (14) is provided at the opening of the placement box (5), and the baffle (14) is rotated by a servo motor (35); A clamping assembly is disposed inside the placement box (5) for clamping goods and realizing automatic entry and exit of goods; A visual recognition camera (15) is installed at the opening of the placement box (5) to detect the volume and position of the goods.

2. The UAV mounting bracket assembly for low-altitude logistics according to claim 1, characterized in that: The hydraulic damper (3) is connected to the support body (2) and the deformable honeycomb structure plate (4) at both ends respectively. The deformable honeycomb structure plate (4) is provided with a support plate (34) on the side away from the damper. The support plate (34) is provided with a first rubber layer (16).

3. The UAV mounting bracket assembly for low-altitude logistics according to claim 1, characterized in that: The drive motor (9) is mounted on the bracket body (2) through the mounting frame (17). The output end of the drive motor (9) is connected to the limiting plate (10) through the rotating rod. The limiting plate (10) is in contact with the lower end of the placement box (5).

4. The UAV mounting bracket assembly for low-altitude logistics according to claim 1, characterized in that: The placement box (5) has two connecting plates (18) at its opening. The baffle (14) is rotatably connected between the two connecting plates (18) by pins at both ends. The servo motor (35) is mounted on the placement box (5), and the output end of the servo motor (35) is connected to the pin that passes through the connecting plate (18).

5. The UAV mounting bracket assembly for low-altitude logistics according to claim 1, characterized in that: The clamping assembly includes a first electric guide rail (19) and a second electric guide rail (20). The first electric guide rail (19) is disposed on both sides of the inner cavity of the placement box (5), and the second electric guide rail (20) is mounted on the moving end of the first electric guide rail (19).

6. The UAV mounting bracket assembly for low-altitude logistics according to claim 5, characterized in that: The clamping assembly also includes an electric push rod (21), a mounting plate (22), a pressure sensor (23), and a clamping plate (24). The cylinder fixed end of the electric push rod (21) is installed on the moving end of the second electric guide rail (20), and the output end of the electric push rod (21) is connected to the mounting plate (22). The pressure sensor (23) is installed between the mounting plate (22) and the clamping plate (24). The clamping plate (24) has a second rubber layer (25) on the side away from the pressure sensor (23).

7. The UAV mounting bracket assembly for low-altitude logistics according to claim 1, characterized in that: The micro air pump (13) is installed at the lower end of the placement box (5). The micro air pump (13) is connected to the airbag (12) through a connecting pipe (26). The airbag (12) is made of a high-strength, wear-resistant flexible material.

8. The UAV mounting bracket assembly for low-altitude logistics according to claim 6, characterized in that: An acrylic protective cover (27) is installed on the outside of the lens of the visual recognition camera (15). A micro brush (28) is provided on one side of the protective cover (27), and the micro brush (28) is driven to rotate by a micro stepper motor (29).

9. The UAV mounting bracket assembly for low-altitude logistics according to claim 8, characterized in that: The visual recognition camera (15) also integrates an infrared fill light (30) for providing illumination when light is insufficient.

10. The UAV mounting bracket assembly for low-altitude logistics according to claim 9, characterized in that: The placement box (5) has an installation slot (31) inside, and a PLC controller (32) and a storage battery (33) are installed in the installation slot (31). The PLC controller (32), the storage battery (33), the locator (6), the electromagnet (7), the drive motor (9), the emergency parachute (11), the micro air pump (13), the servo motor (35), the visual recognition camera (15), the first electric guide rail (19), the second electric guide rail (20), the electric push rod (21), the pressure sensor (23), the micro stepper motor (29), and the infrared fill light (30) are electrically connected to each other.

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