Unmanned aerial vehicle and unmanned aerial vehicle system for logistics transportation

Abstract

The invention discloses an unmanned aerial vehicle for logistics transportation and an unmanned aerial vehicle system, and relates to the technical field of logistics unmanned aerial vehicles, the unmanned aerial vehicle comprises a mounting platform, a limiting ring is mounted at the bottom of the mounting platform, a connecting disc is rotatably connected to the inner wall of the limiting ring, a fixing bracket is mounted at the bottom of the connecting disc, and a placement plate is mounted at the bottom of the fixing bracket; according to the unmanned aerial vehicle for logistics transportation and the unmanned aerial vehicle system, through the arrangement of the mounting platform, the fixed bracket, the placement plate, the positioning plate, the protection frame and the extrusion plate, a cargo bearing platform with a horizontal rotation adjusting function is constructed; on the basis, a self-adaptive cargo clamping system in which a lead screw transmission mechanism and a cross connecting rod clamping mechanism cooperatively work is integrated, and a first driving mechanism drives an extension pipe to stretch out and draw back through a positive and negative rotation lead screw, so that quick positioning of cargoes with different widths is realized; therefore, the problems that in the prior art, the cargo loading direction is fixed, air flow interference is likely to happen in the flight process, and unloading in a narrow space is inconvenient are solved.

Description

Technical Field

[0001] This invention relates to the field of logistics drone technology, and more specifically to drones and drone systems used for logistics transportation. Background Technology

[0002] In recent years, the logistics industry has been undergoing profound changes driven by the rapid development of e-commerce. Among these changes, drone technology, as a key means to improve logistics efficiency and reduce operating costs, has received widespread attention and research. Especially in last-mile delivery in cities and logistics coverage in remote areas, drones have demonstrated unique advantages and potential. With continuous technological advancements, logistics drones have made significant progress in payload capacity, endurance, and autonomous navigation, gradually moving from the experimental stage to commercial application.

[0003] However, current logistics drone technology still has shortcomings in terms of cargo loading and transportation stability. Existing drone cargo-carrying platforms generally lack horizontal rotation adjustment functions, resulting in the cargo's direction remaining fixed during flight. This deficiency is particularly prominent when facing complex flight environments, especially when encountering crosswinds or needing precise obstacle avoidance. The fixed cargo direction significantly increases flight instability and may even cause the cargo to slip or the drone to become unbalanced. In addition, when unloading operations in narrow spaces or irregular terrain, because the cargo direction cannot be adjusted, drones often need to perform complex flight maneuvers to adapt to unloading requirements. This not only increases the difficulty of operation and energy consumption but also limits the flexibility of drone applications in complex scenarios. Therefore, improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to provide unmanned aerial vehicles (UAVs) and UAV systems for logistics transportation, in order to solve the problems of fixed cargo loading direction, poor stability of transportation and unloading in complex flight environments and narrow spaces, and inconvenient operation in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a drone for logistics transportation, including an installation platform, wherein a limiting ring is installed at the bottom of the installation platform, a connecting plate is rotatably connected to the inner wall of the limiting ring, a fixed bracket is installed at the bottom of the connecting plate, a placement plate is installed at the bottom of the fixed bracket, and a first drive assembly is installed on the inner wall of the installation platform. A fixed frame is installed on the top of the fixed bracket, a second drive assembly is installed on the inner wall of the fixed frame, and extension tubes are inserted into both ends of the fixed frame, with a positioning plate installed at one end of each extension tube. A protective frame is installed on the surface of the positioning plate. Electric guide rails are installed on both sides of the inner wall of the protective frame. A first sliding block is slidably connected to the inner wall of each of the two electric guide rails. A connecting rod is rotatably connected to the surface of each of the two first sliding blocks, and the two connecting rods are cross-connected. A second sliding block is rotatably connected to the front end of each of the two connecting rods. A pressing plate is provided at the front end of the second sliding block. A sliding groove is opened on the back of the pressing plate, and the inner wall of the sliding groove is sleeved on the surface of the second sliding block.

[0006] Furthermore, an assembly frame is installed on the top of the fixed frame, a first drive mechanism is installed on the inner wall of the assembly frame, a drive rod is installed at the output end of the first drive mechanism, a transmission wheel is installed at the front end of the drive rod, a transmission belt is rotatably connected to the surface of the transmission wheel, and a drive wheel is rotatably connected to the inner wall of the transmission belt.

[0007] Furthermore, a forward and reverse screw is installed on the inner wall of the drive wheel, and the surface of the forward and reverse screw is threaded to the inner wall of the extension tube. Limiting blocks are installed around the surface of the extension tube, and the surface of the limiting blocks is slidably connected to the inner wall of the fixed frame. The first drive mechanism, drive rod, transmission wheel, transmission belt, drive wheel and forward and reverse screw together constitute the second drive assembly.

[0008] Furthermore, a second drive mechanism is installed on the inner wall of the installation platform. A transmission rod is installed at the output end of the second drive mechanism, and the bottom end of the transmission rod is installed on the top of the connecting plate. The second drive mechanism and the transmission rod together constitute the first drive assembly.

[0009] Furthermore, a controller assembly is mounted on one side of the top of the mounting platform, and a camera is mounted on the top of the mounting platform on one side of the controller assembly.

[0010] Furthermore, multiple sets of third drive mechanisms are installed around the surface of the mounting platform, and propellers are installed at the output ends of the third drive mechanisms. Buffer bases are installed around the bottom of the placement plate.

[0011] Unmanned aerial vehicle (UAV) systems used for logistics transportation include: UAVs and remote control platforms; The remote control platform is communicatively connected to the controller component in the UAV.

[0012] Furthermore, the controller assembly is connected to the first drive mechanism, second drive mechanism, third drive mechanism, electric guide rail, and camera of the UAV via signal connection.

[0013] Furthermore, it also includes a cloud-based task scheduling server, which is communicatively connected to the remote control platform and controller components.

[0014] Compared with existing technologies, the UAV and UAV system for logistics transportation provided by this invention constructs a cargo-carrying platform with horizontal rotation adjustment function through the setting of an installation platform, fixed bracket, placement plate, positioning plate, protective frame, and compression plate. Based on this, an adaptive cargo clamping system is integrated, with a lead screw drive mechanism and a cross-link clamping mechanism working in concert. The first drive mechanism drives the extension tube to extend and retract via a forward and reverse lead screw, achieving rapid positioning of cargo of different widths. Subsequently, the electric guide rail drives the cross-connected connecting rod and the second sliding block to drive the compression plate for adaptive clamping. The sliding groove design allows the compression plate to finely adjust its angle according to the surface shape of the cargo during clamping, ensuring uniform and stable clamping. Simultaneously, the rotatable design of the connecting plate within the limiting ring allows the entire cargo suspension part to rotate horizontally during transportation or loading and unloading, thereby solving the problems of fixed cargo loading direction, susceptibility to airflow interference during flight, and inconvenience in unloading in narrow spaces in existing technologies, achieving the effect of improving cargo clamping adaptability and transportation stability.

[0015] A fully functional and intelligent flying logistics unit was constructed using a second drive mechanism, controller components, camera, and buffer base. The controller component coordinates and controls the first, second, and third drive mechanisms and the electric guide rail, achieving fully automated integrated control from cargo clamping and orientation adjustment to flight propulsion. The multi-rotor system composed of the third drive mechanism and propellers provides stable and reliable flight capabilities; the camera provides the system with visual perception capabilities, assisting in navigation and obstacle avoidance; and the second drive mechanism precisely drives the rotating connecting disc through a transmission rod, making cargo orientation adjustment more proactive and intelligent. The buffer base at the bottom of the placement plate effectively absorbs impact loads during takeoff and landing, not only enhancing the UAV's autonomous flight and operational capabilities but also significantly improving the system's environmental adaptability, ease of operation, and operational safety in complex real-world logistics scenarios. This upgrades the UAV from a single transport carrier into an automated logistics node with intelligent perception, decision-making, and execution capabilities, achieving efficient, precise, and reliable point-to-point delivery. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is one of the overall structural schematic diagrams provided in the embodiments of the present invention; Figure 2 This is the second overall structural schematic diagram provided for an embodiment of the present invention; Figure 3 This is a schematic diagram of the connecting disk structure provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the fixed frame structure provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the forward and reverse reversing lead screw structure provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the electric guide rail structure provided in an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Mounting platform; 2. Limiting ring; 3. Connecting plate; 4. Fixing bracket; 5. Placement plate; 6. Fixing frame; 7. Extension tube; 8. Positioning plate; 9. Protective frame; 10. Electric guide rail; 11. Connecting rod; 12. Second sliding block; 13. Extrusion plate; 14. Sliding groove; 15. Assembly frame; 16. First drive mechanism; 17. Drive rod; 18. Transmission wheel; 19. Transmission belt; 20. Drive wheel; 21. Forward and reverse screw; 22. Limiting block; 23. Second drive mechanism; 24. Transmission rod; 25. Controller assembly; 26. Camera; 27. Third drive mechanism; 28. Propeller; 29. ​​Buffer base. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] As attached Figure 1 To be continued Figure 6 As shown: Example 1: The present invention provides a drone for logistics transportation, including a mounting platform 1, a limiting ring 2 installed at the bottom of the mounting platform 1, a connecting plate 3 rotatably connected to the inner wall of the limiting ring 2, a fixing bracket 4 installed at the bottom of the connecting plate 3, a placement plate 5 installed at the bottom of the fixing bracket 4, and a first drive assembly installed on the inner wall of the mounting platform 1. A fixed frame 6 is installed on the top of the fixed bracket 4. A second drive assembly is installed on the inner wall of the fixed frame 6. Extension tubes 7 are inserted into both ends of the fixed frame 6. A positioning plate 8 is installed at one end of the extension tube 7. A protective frame 9 is mounted on the surface of the positioning plate 8. Electric guide rails 10 are mounted on both sides of the inner wall of the protective frame 9. First sliding blocks are slidably connected to the inner walls of the two electric guide rails 10. Connecting rods 11 are rotatably connected to the surfaces of the two first sliding blocks, and the two connecting rods 11 are cross-connected. Second sliding blocks 12 are rotatably connected to the front ends of the two connecting rods 11. A pressing plate 13 is provided at the front end of the second sliding block 12. A sliding groove 14 is formed on the back of the pressing plate 13, and the inner wall of the sliding groove 14 fits onto the surface of the second sliding block 12. An assembly frame 15 is mounted on the top of the fixing frame 6, and a first drive mechanism 16 is mounted on the inner wall of the assembly frame 15. A drive rod 17 is installed at the output end of the first drive mechanism 16. A transmission wheel 18 is installed at the front end of the drive rod 17. A transmission belt 19 is rotatably connected to the surface of the transmission wheel 18. A drive wheel 20 is rotatably connected to the inner wall of the transmission belt 19. A forward and reverse screw 21 is installed on the inner wall of the drive wheel 20. The surface of the forward and reverse screw 21 is threadedly connected to the inner wall of the extension tube 7. Limiting blocks 22 are installed around the surface of the extension tube 7. The surface of the limiting blocks 22 is slidably connected to the inner wall of the fixed frame 6. The first drive mechanism 16, drive rod 17, transmission wheel 18, transmission belt 19, drive wheel 20 and forward and reverse screw 21 together constitute the drive assembly.

[0021] In use, the mounting platform 1 serves as the main support structure for the entire drone, providing a mounting base for other functional components. A limiting ring 2 at its bottom is rotatably connected to a connecting plate 3, allowing the connecting plate 3 to rotate relative to the limiting ring 2, thus achieving horizontal adjustment of the cargo suspension section. The bottom of the connecting plate 3 is connected to a placement plate 5 via a fixed bracket 4. The placement plate 5 serves as a cargo-bearing platform for directly placing logistics boxes or packages. A fixed frame 6 is mounted on the top of the fixed bracket 4, integrating a drive assembly. Retractable extension tubes 7 are inserted at both ends of the fixed frame 6, with a positioning plate 8 installed at the outer end of each extension tube 7 for positioning the clamping mechanism. Two sets of electric guide rails 10 are installed inside a protective frame 9 on the surface of the positioning plate 8. A first sliding block is slidably connected to the electric guide rail 10, and the first sliding block is rotatably connected to a second sliding block 12 via a cross-connecting connecting rod 11. A pressing plate 13 is connected to the front end of the second sliding block 12, and a sliding groove 14 is formed on the back of the pressing plate 13. The second sliding block 12 can slide within the sliding groove 14, thereby achieving adaptive compression of the cargo by the pressing plate 13. The top of the fixed frame 6 is equipped with an assembly frame 15, which houses a first drive mechanism 16. The first drive mechanism 16 drives a transmission wheel 18 to rotate via a drive rod 17. The transmission wheel 18 drives a drive wheel 20 to rotate via a transmission belt 19. The forward and reverse screw 21 installed inside the drive wheel 20 is threaded into the inner wall of the extension tube 7 to realize the telescopic movement of the extension tube 7. A limiting block 22 is provided on the surface of the extension tube 7, which is slidably connected to the inner wall of the fixed frame 6 to ensure that the extension tube 7 maintains stable guidance during telescopic movement. The entire structure works in concert. The extension tube 7 is controlled to telescopically extend and retract to adjust the clamping width via the second drive assembly. The extrusion plate 13 is driven by the electric guide rail 10 and the linkage mechanism to achieve stable clamping of goods of different sizes. At the same time, the rotation function of the connecting plate 3 allows the direction of the goods to be adjusted during transportation, improving loading, unloading and flight stability.

[0022] Example 2: This embodiment is basically the same as the previous embodiment, except that a second drive mechanism 23 is installed on the inner wall of the mounting platform 1, a transmission rod 24 is installed at the output end of the second drive mechanism 23, and the bottom end of the transmission rod 24 is installed on the top of the connecting plate 3. The second drive mechanism 23 and the transmission rod 24 together constitute the first drive assembly. A controller assembly 25 is installed on one side of the top of the mounting platform 1. A camera 26 is installed on the top of the mounting platform 1 on one side of the controller assembly 25. Multiple sets of third drive mechanisms 27 are installed around the surface of the mounting platform 1. A propeller 28 is installed at the output end of the third drive mechanism 27. Buffer bases 29 are installed around the bottom of the placement plate 5.

[0023] In use, the second drive mechanism 23 is fixedly installed on the inner wall of the installation platform 1. Its output end is rigidly connected to the top of the connecting plate 3 through the transmission rod 24. When the second drive mechanism 23 is activated, it can drive the transmission rod 24 to rotate, thereby causing the connecting plate 3 to rotate precisely horizontally within the limiting ring 2. This allows the fixed bracket 4, the placement plate 5, and the cargo suspended below it to be flexibly adjusted horizontally according to the flight attitude, loading and unloading position, or obstacle avoidance needs, improving the UAV's maneuverability and operational adaptability in complex environments. The controller assembly 25, installed on one side of the top of the installation platform 1, serves as the control center of the entire UAV system. It integrates flight control, sensor data processing, communication, and energy management modules, and is responsible for coordinating and commanding the work of various drive mechanisms, camera units, and navigation systems to ensure the orderly execution of transportation tasks. The camera 26, located on one side of the controller assembly 25, serves as a visual perception unit, collecting image information in front of and below the UAV in real time. This provides visual data support for automatic obstacle avoidance, target recognition, precise landing, and cargo status monitoring, enhancing the system's environmental perception and autonomous operation capabilities. Multiple sets of third drive mechanisms 27 are evenly distributed around the surface of the mounting platform 1. Each third drive mechanism 27 has a propeller 28 installed at its output end, forming a multi-rotor propulsion system for the UAV. Through independent speed control of each third drive mechanism 27 by the controller component 25, the UAV can achieve omnidirectional flight maneuvers such as vertical take-off and landing, hovering, forward, backward, left, and right translation, and attitude adjustment, providing a stable and reliable flight platform for logistics transportation. The buffer bases 29 installed around the bottom of the placement plate 5 are made of elastic or hydraulically damping materials. When the UAV encounters turbulence during landing or flight, they can effectively absorb and mitigate the impact energy transmitted to the cargo and fuselage structure, protecting cargo safety, reducing equipment wear, and improving the stability and safety of the landing process. In summary, the above structures together construct a highly efficient logistics UAV system integrating intelligent control, visual navigation, stable flight, and safety buffering, enabling it to adapt to diverse logistics transportation scenarios and achieve automated, precise, and reliable cargo delivery operations.

[0024] Example 3: Unmanned aerial vehicle (UAV) systems used for logistics transportation include: UAVs and remote control platforms; The remote control platform communicates with the controller component 25 in the drone.

[0025] The controller assembly 25 is connected to the first drive mechanism 16, the second drive mechanism 23, the third drive mechanism 27, the electric guide rail 10, and the camera 26 of the UAV. It also includes a cloud task scheduling server, which is connected to the remote control platform and the controller assembly 25.

[0026] Application example: With the fast pace of urban life, the demand for instant delivery of documents, small emergency medicines, and time-sensitive e-commerce parcels is increasing. Traditional ground transportation is easily affected by factors such as traffic congestion, weather, and inconvenient access within residential areas. This drone system, with its straight-line flight, precise positioning, autonomous loading and unloading, and intelligent control capabilities, can effectively avoid ground transportation bottlenecks and achieve efficient, fast, and unmanned delivery from community delivery stations to designated buildings or ground receiving points. It is especially suitable for urban intra-city logistics scenarios with high timeliness requirements and moderate cargo volume and weight.

[0027] When a dispatcher at a community delivery station receives a file and package delivery order from delivery station A to a user's home in building B via a cloud-based task scheduling server, the entire application process is immediately initiated.

[0028] First, dispatchers operate a remote control platform within the delivery station to confirm order information and generate a delivery task. This task instruction is then transmitted wirelessly to a drone waiting on the rooftop helipad of Building A delivery station. Upon receiving the task instruction, the controller component 25 on the drone begins to coordinate with its components to execute the task. The drone first enters the cargo loading stage: the operator places the document package on the drone's placement plate 5. Subsequently, the controller component 25 activates the first drive mechanism 16, which drives the transmission wheel 18 to rotate via the drive rod 17. The transmission wheel 18 transmits power to the drive wheel 20 via the transmission belt 19, causing the built-in forward and reverse screw 21 of the drive wheel 20 to rotate accordingly. Since the forward and reverse screw 21 is threaded into the inner wall of the extension tube 7, and the extension tube 7 is limited and slids against the inner wall of the fixed frame 6 by the limiting block 22 on its surface, the two extension tubes 7 begin to extend synchronously towards each other, causing the positioning plate 8 at their ends to move towards both sides of the package until the positioning plate 8 is approximately close to the two sides of the package for coarse positioning. Next, the controller assembly 25 activates the two motorized guide rails 10 within the protective frame 9, driving their respective first sliding blocks to slide along the rails. The movement of the two first sliding blocks is converted into linkage through two cross-connecting rods 11, which in turn drive the two second sliding blocks 12 to move at the front ends of the connecting rods 11. The front ends of the second sliding blocks 12 abut against the sliding grooves 14 on the back of the compression plates 13 and can slide within the sliding grooves 14. As the second sliding blocks 12 move, the two compression plates 13 stably and adaptively press the package from both sides. Due to the design of the sliding grooves 14, the compression plates 13 can adapt to slight unevenness on the surface of the package, providing uniform clamping force to ensure that the package is stable and does not slip during flight. After the cargo is loaded and secured, the drone enters the flight preparation state.

[0029] Next, the drone performs the takeoff and autonomous flight phase. The controller component 25 coordinates and controls multiple sets of third drive mechanisms 27 around the surface of the mounting platform 1 according to the pre-set flight path. Each third drive mechanism 27 drives its own propeller 28 to rotate at a specific speed, generating lift and thrust, enabling the drone to take off vertically from the helipad. During the climb, the camera 26 continuously operates, collecting visual information from the front and below and transmitting it to the controller component 25 for navigation assistance and initial obstacle perception. After reaching a safe cruising altitude, the drone transitions to horizontal flight towards the home of user B. Throughout the flight, the remote control platform can monitor the drone's position and status in real time, as well as the images transmitted from the camera 26. Simultaneously, the controller component 25 can fine-tune the flight attitude or cargo orientation by controlling the second drive mechanism 23 based on real-time environmental information (such as the need to avoid temporary obstacles). The second drive mechanism 23 drives the transmission rod 24 to rotate, and the transmission rod 24 drives the connecting plate 3 to rotate within the limiting ring 2, thereby enabling the entire suspension system consisting of the fixed bracket 4, the placement plate 5 and the clamped goods to be adjusted horizontally, optimizing the aerodynamic layout or coping with crosswinds.

[0030] When the drone arrives at the pre-designated landing point (such as a balcony, a dedicated receiving platform, or a safe area on the ground) near the user's home in Building B, it enters the precise landing and cargo unloading phase. The controller assembly 25 controls the third drive mechanism 27 to adjust the propeller speed 28, enabling the drone to begin a smooth, vertical descent. At the moment of landing, the four buffer bases 29 (made of elastic or hydraulically damping material) at the bottom of the placement plate 5 first contact the ground, effectively absorbing and buffering the landing impact energy, protecting the fuselage structure and the package. After the drone lands stably, the controller assembly 25 controls the electric guide rail 10 to move in the opposite direction, driving the first sliding block, connecting rod 11, and second sliding block 12 to release the clamps on the package from the two compression plates 13. Subsequently, the controller assembly 25 controls the first drive mechanism 16 to rotate in the opposite direction, driving the extension tube 7 to retract, moving the positioning plate 8 and compression plates 13 completely away from the package, creating space for retrieval. The user can then safely retrieve the document package from the placement plate 5. After delivery, the drone can receive instructions to take off empty and return to the delivery station, or proceed to the next task point, thus completing a full point-to-point instant delivery mission. The entire application process fully demonstrates the system's automation, intelligence, and reliability in the last mile of air logistics.

[0031] Working principle: First, the mounting platform 1, which serves as the flight and support base, drives the propellers 28 to rotate through multiple sets of third drive mechanisms 27 around its surface, generating lift and thrust to achieve vertical take-off and landing, hovering, horizontal flight, and attitude adjustment of the UAV. During flight, the controller assembly 25, installed on top of the mounting platform 1, acts as the core control unit, coordinating the operation of various components, while the camera 26 located on one side continuously collects environmental image data for visual navigation, target recognition, and obstacle avoidance. When loading cargo is required, the operator places the cargo on the placement plate 5 supported by the fixed bracket 4. Subsequently, the controller assembly 25 activates the first drive mechanism 16 located in the top mounting frame 15 of the fixed frame 6. The first drive mechanism 16 drives the transmission wheel 18 to rotate through the drive rod 17 at its output end. The transmission wheel 18 transmits power to the drive wheel 20 via the transmission belt 19. The drive wheel 20 drives the forward and reverse screw 21 inside it to rotate. Since the forward and reverse screw 21 is threaded with the inner wall of the extension tube 7, and the extension tube 7 slides in a limited manner on the inner wall of the fixed frame 6 through the limiting blocks 22 around its surface, the two extension tubes 7 extend or retract synchronously in opposite directions, thereby driving the positioning plate 8 installed at the end of the extension tube 7 to move, realizing the initial positioning and clamping range adjustment of cargo of different widths. Next, the controller assembly 25 controls the operation of the electric guide rails 10 installed on both sides of the inner wall of the protective frame 9 on the surface of the positioning plate 8. The electric guide rails 10 drive their respective first sliding blocks to slide. The movement of the two first sliding blocks is transmitted through two connecting rods 11 that are cross-hinged, which drives the movement of the second sliding blocks 12 that are hinged to the front ends of the two connecting rods 11 respectively. The front end of the second sliding block 12 is nested in the sliding groove 14 on the back of the extrusion plate 13 and can slide therein. As the second sliding block 12 moves under the drive of the connecting rods 11, the two extrusion plates 13 move synchronously and smoothly towards or away from each other from both sides of the cargo, realizing adaptive pressing or releasing of the cargo. The design of the sliding groove 14 enables the extrusion plate 13 to adapt to slight angle changes during the pressing process, ensuring that the clamping is stable and does not damage the cargo. During transportation, if the cargo orientation needs to be adjusted to optimize the aerodynamic layout or adapt to the loading and unloading angle, the controller assembly 25 can activate the second drive mechanism 23 installed on the inner wall of the mounting platform 1. The second drive mechanism 23 drives the connecting plate 3 to rotate through the transmission rod 24 at its output end. The connecting plate 3 rotates horizontally under the limiting constraint of the limiting ring 2, thereby driving the fixed bracket 4, the placement plate 5 and the cargo clamped on it to rotate as a whole, realizing flexible adjustment of the cargo's horizontal orientation. When the UAV lands, the buffer base 29 installed around the bottom of the placement plate 5 contacts the ground first, using its elastic or hydraulic damping characteristics to absorb and attenuate the landing impact energy, effectively protecting the cargo and the fuselage structure.Furthermore, the system can be expanded into a complete drone system including a remote control platform and a cloud-based task scheduling server. The remote control platform is connected to the controller component 25 for remote task assignment and status monitoring, while the cloud-based task scheduling server is responsible for high-level task allocation and multi-drone collaborative scheduling.

[0032] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A drone for logistics transportation, including a mounting platform (1), characterized in that, The bottom of the installation platform (1) is equipped with a limiting ring (2), the inner wall of the limiting ring (2) is rotatably connected to a connecting plate (3), the bottom of the connecting plate (3) is equipped with a fixed bracket (4), the bottom of the fixed bracket (4) is equipped with a placement plate (5), and the inner wall of the installation platform (1) is equipped with a first drive assembly. A fixed frame (6) is installed on the top of the fixed bracket (4), a second drive assembly is installed on the inner wall of the fixed frame (6), and extension tubes (7) are inserted into both ends of the fixed frame (6). A positioning plate (8) is installed at one end of the extension tube (7). The positioning plate (8) is equipped with a protective frame (9). Both sides of the inner wall of the protective frame (9) are equipped with electric guide rails (10). The inner walls of the two electric guide rails (10) are slidably connected with first sliding blocks. The surfaces of the two first sliding blocks are rotatably connected with connecting rods (11), and the two connecting rods (11) are cross-connected. The front ends of the two connecting rods (11) are rotatably connected with second sliding blocks (12). The front end of the second sliding block (12) is provided with a pressing plate (13). The back of the pressing plate (13) is provided with a sliding groove (14), and the inner wall of the sliding groove (14) is sleeved on the surface of the second sliding block (12).

2. The drone for logistics transportation according to claim 1, characterized in that, An assembly frame (15) is installed on the top of the fixed frame (6). A first drive mechanism (16) is installed on the inner wall of the assembly frame (15). A drive rod (17) is installed at the output end of the first drive mechanism (16). A transmission wheel (18) is installed at the front end of the drive rod (17). A transmission belt (19) is rotatably connected to the surface of the transmission wheel (18). A drive wheel (20) is rotatably connected to the inner wall of the transmission belt (19).

3. The drone for logistics transportation according to claim 2, characterized in that, The inner wall of the drive wheel (20) is equipped with a forward and reverse screw (21), and the surface of the forward and reverse screw (21) is threaded to the inner wall of the extension tube (7). Limiting blocks (22) are installed around the surface of the extension tube (7), and the surface of the limiting blocks (22) is slidably connected to the inner wall of the fixed frame (6). The first drive mechanism (16), drive rod (17), transmission wheel (18), transmission belt (19), drive wheel (20) and forward and reverse screw (21) together constitute the second drive assembly.

4. The drone for logistics transportation according to claim 1, characterized in that, The inner wall of the installation platform (1) is equipped with a second drive mechanism (23), and the output end of the second drive mechanism (23) is equipped with a transmission rod (24), and the bottom end of the transmission rod (24) is installed on the top of the connecting plate (3). The second drive mechanism (23) and the transmission rod (24) together constitute the first drive assembly.

5. The drone for logistics transportation according to claim 1, characterized in that, A controller assembly (25) is mounted on one side of the top of the mounting platform (1), and a camera (26) is mounted on one side of the controller assembly (25) on the top of the mounting platform (1).

6. The drone for logistics transportation according to claim 1, characterized in that, Multiple sets of third drive mechanisms (27) are installed around the surface of the installation platform (1). A propeller (28) is installed at the output end of the third drive mechanism (27). A buffer base (29) is installed around the bottom of the placement plate (5).

7. A drone system for logistics transportation, applicable to the drones for logistics transportation as described in any one of claims 1 to 6, characterized in that, include: Unmanned aerial vehicles (UAVs) and remote control platforms; The remote control platform is in communication connection with the controller component (25) in the UAV.

8. The drone for logistics transportation according to claim 7, characterized in that, The controller assembly (25) is connected to the first drive mechanism (16), the second drive mechanism (23), the third drive mechanism (27), the electric guide rail (10), and the camera (26) of the UAV.

9. The drone for logistics transportation according to claim 7, characterized in that, It also includes a cloud-based task scheduling server, which is connected in communication with the remote control platform and controller component (25).

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