Split mounting type multi-rotor unmanned aerial vehicle for logistics transportation

Abstract

The invention discloses an assembly type multi-rotor unmanned aerial vehicle for logistics transportation, and relates to the technical field of transportation unmanned aerial vehicles, the assembly type multi-rotor unmanned aerial vehicle comprises a body, a plurality of fixing seats are fixedly installed in the body in the circumferential direction, the fixing seats are detachably connected with connecting rods, and rotor devices are fixedly installed at the ends, away from the body, of the connecting rods; the bottom surface of the body is fixedly connected with a pair of fixing plates through inclined rods, an article box is placed on the top surfaces of the fixing plates, limiting mechanisms are installed on the two sides of the article box respectively, rotating wheels are rotationally connected to the two ends of the fixing plates respectively, the limiting mechanisms are detachably connected with the rotating wheels, ropes are wound around the rotating wheels, and hooks are fixedly connected to the bottoms of the ropes. The rotating wheel is driven by the driving box, any connecting rod can be connected with the other body through a connecting mechanism after being detached, and the connecting mechanism is matched with the fixing base. The article box is fixed through the limiting mechanism, it is guaranteed that the article box cannot slip in the transportation process, a multi-machine collaborative transportation mode is formed through the connecting mechanism, and the transportation efficiency under the large-load scene is improved.

Description

Technical Field

[0001] This invention relates to the field of transport drone technology, and in particular to a modular multi-rotor drone for logistics transportation. Background Technology

[0002] Logistics drones break through the spatial limitations of traditional ground logistics by using three-dimensional flight paths to achieve direct delivery from warehousing centers to the end user. They are especially suitable for remote areas, complex terrains, or scenarios with high timeliness requirements. Their core functions include cargo transportation, precise delivery, and cross-regional distribution, which can significantly shorten delivery time and reduce labor costs.

[0003] Existing logistics drones generally can only operate in isolation and lack modular assembly capabilities, resulting in insufficient capacity for transporting special items and low work efficiency. Furthermore, items are usually transported by simply binding them together, and they are prone to slipping off in strong winds or turbulent weather during high-altitude flight, leading to loss and poor applicability.

[0004] Therefore, there is an urgent need for a modular multi-rotor drone for logistics transportation to solve the problems existing in the above-mentioned technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a modular multi-rotor drone for logistics transportation to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a modular multi-rotor drone for logistics transportation, comprising a main body, wherein a plurality of fixed seats are fixedly installed circumferentially within the main body, and a connecting rod is detachably connected to each fixed seat. A rotor device is fixedly installed at the end of the connecting rod away from the main body. A pair of fixed plates are fixedly connected to the bottom surface of the main body via a diagonal rod. A cargo box for holding goods is placed on the top surface of the fixed plates. Limiting mechanisms are respectively installed on both sides of the cargo box. Rotating wheels are rotatably connected to both ends of the fixed plates. The limiting mechanisms are detachably connected to the rotating wheels. A rope is wound around the rotating wheels, and a hook is fixedly connected to the bottom of the rope. The rotating wheels are driven by a drive box. When any of the connecting rods is detached, it can be connected to another main body through a connecting mechanism, which is adapted to the fixed seat.

[0007] Optionally, the limiting mechanism includes a pair of connecting shafts rotatably connected to the outer wall of the item box. A ring is fixedly connected to the end of the connecting shaft. A limiting rod is detachably connected inside the ring. The limiting rod is detachably connected to the rotating wheel. A limiting disk is fixedly connected to the end of the limiting rod away from the rotating wheel. The diameter of the limiting disk is larger than the diameter of the ring.

[0008] Optionally, the rotating wheel has a plurality of threaded holes circumferentially, and the end of the limiting rod extends into the threaded holes and is threadedly connected to the threaded holes.

[0009] Optionally, a drive shaft is rotatably connected inside the fixed plate, and both ends of the drive shaft are fixedly connected to two rotating wheels respectively. A drive wheel is fixedly connected to the drive shaft, and the two drive wheels are connected by a drive belt. The drive belt extends from the side wall of the fixed plate and is slidably connected to the fixed plate. Either of the rotating wheels is connected to the drive box.

[0010] Optionally, the connecting mechanism includes a connecting column, with connecting sleeves slidably connected to both ends of the connecting column, a fixing rod fixedly connected inside the connecting sleeve, a threaded head fixedly connected to the end of the fixing rod away from the connecting sleeve, a connecting hole provided on the fixing seat, the threaded head being threadedly connected to the connecting hole, and the end of the connecting rod being adapted to the connecting hole.

[0011] Optionally, a sleeve is provided on the outside of the fixing rod, and a plurality of positioning rods are circumferentially fixedly connected to the side of the sleeve near the threaded head. A plurality of positioning holes are provided on the fixing seat, and the plurality of positioning rods are arranged in a one-to-one correspondence with the plurality of positioning holes.

[0012] Optionally, the outer wall of the sleeve at the end away from the positioning rod is provided with a threaded section, the connecting sleeve is threadedly connected to the threaded section, a wedge block is fixedly connected to the connecting sleeve, a fixing groove is provided on the side of the threaded section away from the connecting sleeve, the fixing groove is fixedly connected to the sleeve, and the wedge block is pressed and locked with the fixing groove.

[0013] Optionally, a partition is fixedly connected inside the connecting sleeve, the fixing rod is fixedly connected to the partition, a limiting plate is provided on the other side of the partition, the limiting plate is slidably connected to the inner wall of the connecting sleeve, and the limiting plate is fixedly connected to the connecting column.

[0014] Optionally, a support rod is fixedly connected to the bottom surface of the fixing plate.

[0015] Optionally, the two fixing plates are fixedly connected by several crossbars.

[0016] This invention discloses the following technical effects: In use, goods are loaded into the item box. The limiting mechanism and rotating wheels effectively limit the item box, preventing it from sliding and ensuring the stability of the transportation process. When the item is too large to fit into the item box, the rotating wheels are rotated by the drive box, which in turn tightens or loosens the rope. The item is then hoisted by the hook, thus realizing the transportation of large items. When a single unit cannot achieve effective transportation, the connecting rod can be removed and replaced with a connecting mechanism. The connecting mechanism allows one or more units to be assembled, and the connection between multiple units can be completed as needed, thereby achieving modular assembly and realizing the transportation function of special items. This invention achieves modular assembly of the rotor device through the combination of a circumferentially fixed base and a detachable connecting rod, supporting flexible configuration of multi-rotor layouts. The inclusion of a cargo box and rotating wheels allows for diverse transportation methods, including placing goods in the cargo box or using hooks for suspension. The ropes, wound around the rotating wheels and controlled by a drive unit, ensure cargo stability during transport and facilitate loading and unloading. The cargo box is secured by a limiting mechanism to prevent slippage during transport. Furthermore, the connecting mechanism enables multi-machine collaborative transport, improving transportation efficiency in heavy-load scenarios. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is an assembly drawing of the item box of the present invention;

[0020] Figure 3 For the present invention Figure 2 A magnified view of part A in the image;

[0021] Figure 4 This is an assembly drawing of the drive shaft and drive wheel of the present invention;

[0022] Figure 5 For the present invention Figure 4 A magnified view of part B in the image;

[0023] Figure 6 This is an assembly drawing of the sleeve and connecting sleeve of the present invention;

[0024] Figure 7 For the present invention Figure 6 A magnified view of part C;

[0025] Figure 8 For the present invention Figure 6 A magnified view of part D;

[0026] Figure 9 This is a schematic diagram of the assembled structure of the present invention;

[0027] Figure 10 This is a cross-sectional view of the connecting sleeve of the present invention;

[0028] In the diagram: 1. Main body; 2. Connecting rod; 3. Rotor device; 4. Support rod; 5. Fixing plate; 6. Drive box; 7. Hook; 8. Rotating wheel; 9. Limiting rod; 10. Item box; 11. Crossbar; 12. Connecting shaft; 13. Ring; 14. Limiting plate; 15. Threaded hole; 16. Drive shaft; 17. Drive wheel; 18. Drive belt; 19. Fixing seat; 20. Sleeve; 21. Threaded section; 22. Connecting sleeve; 23. Connecting column; 24. Connecting hole; 25. Positioning hole; 26. Positioning rod; 27. Threaded head; 28. Fixing groove; 29. ​​Wedge block; 30. Partition plate; 31. Limiting plate; 32. Fixing rod. Detailed Implementation

[0029] 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.

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figures 1 to 10 As shown, this embodiment provides a modular multi-rotor drone for logistics transportation, including a main body 1. Several fixed seats 19 are fixedly installed on the inner circumference of the main body 1. The fixed seats 19 are detachably connected to connecting rods 2. A rotor device 3 is fixedly installed at the end of the connecting rod 2 away from the main body 1. A pair of fixed plates 5 are fixedly connected to the bottom surface of the main body 1 by a diagonal rod. A cargo box 10 for holding goods is placed on the top surface of the fixed plates 5. Limiting mechanisms are installed on both sides of the cargo box 10. Rotating wheels 8 are rotatably connected to both ends of the fixed plates 5. The limiting mechanisms are detachably connected to the rotating wheels 8. A rope is wound on the rotating wheel 8. A hook 7 is fixedly connected to the bottom of the rope. The rotating wheel 8 is driven by a drive box 6. When any connecting rod 2 is removed, it can be connected to another main body 1 through a connecting mechanism. The connecting mechanism is adapted to the fixed seat 19.

[0032] In use, goods are loaded into the item box 10. The limiting mechanism and the rotating wheel 8 effectively limit the item box 10 to prevent it from sliding and ensure the stability of the transportation process. When the item is too large to fit into the item box 10, the rotating wheel 8 is rotated by the drive box 6 to tighten or loosen the rope, and the item is hoisted by the hook 7, thus realizing the transportation of large items. When a single body 1 cannot achieve effective transportation, the connecting rod 2 can be removed and replaced with a connecting mechanism. The connecting mechanism can be used to assemble one or more bodies 1, and the connection between multiple bodies 1 can be completed according to the requirements, thereby completing modular assembly and realizing the transportation function of special items. This invention achieves modular assembly of the rotor device 3 through the combination of the circumferential fixed base 19 of the main body 1 and the detachable connecting rod 2, supporting flexible configuration of multi-rotor layout. Through the setting of the item box 10 and the rotating wheel 8, it forms a transportation method in which the goods are placed in the item box 10 or suspended by the hook 7. The transportation method is diverse and has a wide range of applications. At the same time, the rope is wound around the rotating wheel 8 and controlled by the drive box 6 to ensure the stability of the goods during transportation and facilitate the hoisting and unloading of the goods. The item box 10 is fixed by the limiting mechanism to ensure that it will not slip during transportation. Moreover, it can form a multi-machine collaborative transportation mode through the connecting mechanism, improving the transportation efficiency in heavy load scenarios.

[0033] Furthermore, the control system in this application employs a dynamic lift compensation algorithm to adjust the rotational speed of the remaining rotors in real time to achieve lift rebalancing. Specifically, each rotor unit can be equipped with an independent sensor and processor. Through a micro gyroscope array and software algorithm, the lift gap can be monitored in real time and the load of other rotors can be dynamically distributed to ensure that the total lift is not lower than the threshold. At the same time, the connecting mechanism adopts a reasonable length to reduce the frontal area and reduce wind resistance. Furthermore, it adopts distributed cooperative control, enabling the UAV not only to perceive its own status but also to predict and cancel interference based on the attitude and position changes of its neighbors, thereby improving overall stability.

[0034] Further refining the design, the limiting mechanism includes a pair of connecting shafts 12 rotatably connected to the outer wall of the item box 10. A ring 13 is fixedly connected to the end of each connecting shaft 12. A limiting rod 9 is detachably connected inside the ring 13. The limiting rod 9 is detachably connected to the rotating wheel 8. A limiting disc 14 is fixedly connected to the end of the limiting rod 9 away from the rotating wheel 8. The diameter of the limiting disc 14 is larger than the diameter of the ring 13. After placing the goods into the item box 10, the item box 10 is placed on the fixing plate 5. The limiting rod 9 is passed through the ring 13. Rotating the limiting rod 9 causes the ring 13 to rotate, simultaneously rotating the connecting shafts 12, until the limiting rod 9 aligns with the rotating wheel 8, thus connecting the limiting rod 9 and the rotating wheel 8 together, forming a limiting mechanism for the item box 10. The overall operation is convenient, quick, and efficient, ensuring the stability of the item box 10 during transportation and reducing the chance of items slipping and being lost. The diameter of the limiting disc 14 is larger than the diameter of the ring 13, ensuring that the limiting rod 9 is stably placed inside the ring 13 when not in use, making it more convenient to use.

[0035] Further refining the design, the rotating wheel 8 has several threaded holes 15 circumferentially oriented, and the end of the limiting rod 9 extends into the threaded holes 15 and is threadedly connected to them. The threaded holes 15 provide a stable connection for the limiting rod 9, effectively limiting the position of the item box 10 and preventing displacement during transportation. Simultaneously, the threaded connection allows for quick assembly and disassembly, improving operational convenience.

[0036] Further refining the design, a drive shaft 16 is rotatably connected within the fixed plate 5. Both ends of the drive shaft 16 are fixedly connected to two rotating wheels 8. A drive wheel 17 is fixedly connected to the drive shaft 16, and the two drive wheels 17 are connected by a drive belt 18. The drive belt 18 extends from the side wall of the fixed plate 5 and is slidably connected to the fixed plate 5. Either rotating wheel 8 is connected to the drive box 6. The drive box 6 drives either rotating wheel 8 to rotate, which in turn drives the drive shaft 16 to rotate. The drive shaft 16 then drives the drive wheel 17 to rotate, and the drive wheel 17 drives the other drive shaft 16 to rotate via the drive belt 18. Thus, a single drive enables the four rotating wheels 8 to rotate synchronously. When there is insufficient space above the fixed plate 5 to place transported items, the items are placed below the fixed plate 5 using ropes and hooks 7. The length of the ropes is adjusted via the drive box 6 to facilitate loading and unloading. Simultaneously, retracting the ropes via the drive box 6 prevents the items from swaying at high altitudes, improving transport stability.

[0037] Further refining the scheme, the connecting mechanism includes a connecting column 23, with connecting sleeves 22 slidably connected to both ends of the connecting column 23. A fixing rod 32 is fixedly connected inside the connecting sleeve 22, and a threaded head 27 is fixedly connected to the end of the fixing rod 32 away from the connecting sleeve 22. A connecting hole 24 is provided on the fixing seat 19, and the threaded head 27 is threadedly connected to the connecting hole 24. The end of the connecting rod 22 is adapted to the connecting hole 24. The two fixing rods 32 are connected by the connecting column 23 and the connecting sleeve 22, which facilitates the assembly of multiple bodies 1. Rotating the connecting sleeve 22 drives the fixing rod 32 to rotate, and the fixing rod 32 drives the threaded head 27 to rotate. The threaded head 27 is screwed into the connecting hole 24, thereby completing rapid assembly and improving assembly efficiency. At the same time, the connecting sleeve 22 and the connecting column 23 are slidably connected to ensure a stable connection between the connecting column 23 and the connecting sleeve 22 after the fixing rod 32 moves.

[0038] Further refining the design, a sleeve 20 is provided on the outer side of the fixing rod 32. Several positioning rods 26 are circumferentially fixedly connected to the side of the sleeve 20 near the threaded head 27. Several positioning holes 25 are provided on the fixing base 19, with each positioning rod 26 corresponding to one of the positioning holes 25. The connection between the positioning rods 26 and the positioning holes 25 allows the sleeve 20 to be quickly positioned, thereby positioning the fixing rod 32 and aligning the threaded head 27 with the connecting hole 24, preventing stripping. Simultaneously, the sleeve 20 enhances the protective performance of the fixing rod 32, improves its impact resistance, and increases its stability during transportation.

[0039] Further refining the design, a threaded section 21 is provided on the outer wall of the end of the sleeve 20 away from the positioning rod 26. The connecting sleeve 22 is threadedly connected to the threaded section 21, and a wedge block 29 is fixedly connected to the connecting sleeve 22. A fixing groove 28 is provided on the side of the threaded section 21 away from the connecting sleeve 22, and the fixing groove 28 is fixedly connected to the sleeve 20. The wedge block 29 is pressed and locked with the fixing groove 28. The threaded section 21 on the sleeve 20 is threadedly connected to the connecting sleeve 22, thereby further enhancing the stability of the connection. At the same time, when the connecting sleeve 22 rotates to the end of the threaded section 21, the locking is completed by the mutual pressing of the wedge block 29 and the fixing groove 28, reducing loosening caused by vibration, thereby improving the structural stability of the body 1 after splicing.

[0040] Further refining the design, a partition 30 is fixedly connected inside the connecting sleeve 22, and the fixing rod 32 is fixedly connected to the partition 30. A limiting plate 31 is provided on the other side of the partition 30, which is slidably connected to the inner wall of the connecting sleeve 22 and fixedly connected to the connecting post 23. The partition 30 separates the connecting sleeve 22 into two cavities. One cavity is used to install the fixing rod 32, and the other cavity serves as a connection, facilitating effective assembly of the two main bodies 1. The limiting plate 31 prevents the connecting post 23 from slipping, thereby limiting the sliding stroke of the connecting post 23, while also providing sufficient movement space for the fixing rod 32 when locking, thus improving installation efficiency.

[0041] Further refining the design, a support rod 4 is fixedly connected to the bottom surface of the fixing plate 5. The support rod 4 is designed to ensure that it forms a stable support surface when the drone lands, thus improving landing stability.

[0042] The design is further refined by connecting the two fixed plates 5 with several crossbars 11. Connecting the two fixed plates 5 into an integral frame via the crossbars 11 significantly improves the bending stiffness of the fixed plate 5 structure, effectively supports the item box 10, enhances overall stability, and allows lighting to be installed on the crossbars 11 during actual use, facilitating use in low-light conditions and expanding the overall applicability.

[0043] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0044] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A multi-copter unmanned aerial vehicle for logistics transportation, which is capable of being assembled, characterized in that: The utility model provides a kind of multi-body rotary wing unmanned aerial vehicle, including body (1), several fixed seats (19) are fixedly installed in the body (1), the fixed seat (19) is detachably connected with connecting rod (2), the connecting rod (2) is fixedly installed with rotor device (3) away from the body (1) one end, the bottom surface of the body (1) is fixedly connected with a pair of fixed plate (5) by diagonal brace, the top surface of the fixed plate (5) is placed with the article box (10) for containing goods, the article box (10) both sides are respectively installed with limiting mechanism, the both ends of the fixed plate (5) are rotatably connected with rotating wheel (8), the limiting mechanism is detachably connected with the rotating wheel (8), the rotating wheel (8) is wound with rope, the bottom of the rope is fixedly connected with hook (7), the rotating wheel (8) is driven by drive box (6), when any connecting rod (2) is removed, it can be connected with another body (1) by connecting mechanism, the connecting mechanism is matched with the fixed seat (19).

2. The multi-copter unmanned vehicle for logistics transportation according to claim 1, wherein: The limiting mechanism includes a pair of connecting shafts (12) rotatably connected with the outer wall of the article box (10), the end of the connecting shaft (12) is fixedly connected with a circular ring (13), the circular ring (13) is detachably connected with a limiting rod (9) inside, the limiting rod (9) is detachably connected with the rotating wheel (8), the end of the limiting rod (9) away from the rotating wheel (8) is fixedly connected with a limiting disc (14), the diameter of the limiting disc (14) is greater than the diameter of the circular ring (13).

3. The multi-copter unmanned vehicle for logistics transportation according to claim 2, wherein: The rotating wheel (8) is circumferentially provided with a plurality of threaded holes (15), and the end of the limiting rod (9) extends into the threaded hole (15) and is threadedly connected with the threaded hole (15).

4. The multi-copter unmanned vehicle for logistics transportation according to claim 1, wherein: The fixed plate (5) is rotatably connected with a transmission shaft (16) inside, the both ends of the transmission shaft (16) are fixedly connected with two rotating wheels (8), the transmission shaft (16) is fixedly connected with a transmission wheel (17), the two transmission wheels (17) are drivingly connected through a transmission belt (18), the transmission belt (18) extends from the side wall of the fixed plate (5) and is slidingly connected with the fixed plate (5), any rotating wheel (8) is drivingly connected with the drive box (6).

5. The multi-copter unmanned vehicle for logistics transportation according to claim 1, wherein: The connecting mechanism includes a connecting column (23), the both ends of the connecting column (23) are slidingly connected with a connecting sleeve (22), the connecting sleeve (22) is fixedly connected with a fixed rod (32) inside, the end of the fixed rod (32) away from the connecting sleeve (22) is fixedly connected with a threaded head (27), the fixed seat (19) is provided with a connecting hole (24), the threaded head (27) is threadedly connected with the connecting hole (24), the end of the connecting rod (2) is matched with the connecting hole (24).

6. The multi-copter unmanned vehicle for use in logistics transport according to claim 5, wherein: The fixed rod (32) is provided with a sleeve (20) outside, a plurality of positioning rods (26) are circumferentially fixedly connected on one side of the sleeve (20) close to the threaded head (27), a plurality of positioning holes (25) are formed on the fixed seat (19), and a plurality of positioning rods (26) and a plurality of positioning holes (25) are one-to-one correspondingly arranged.

7. The multi-copter unmanned vehicle for logistics transportation according to claim 6, wherein: The sleeve (20) is provided with a threaded segment (21) on the outer wall of one end away from the positioning rod (26), the connecting sleeve (22) is threadedly connected with the threaded segment (21), the connecting sleeve (22) is fixedly connected with a wedge-shaped block (29), one side of the threaded segment (21) away from the connecting sleeve (22) is provided with a fixed groove (28), the fixed groove (28) is fixedly connected with the sleeve (20), and the wedge-shaped block (29) is extruded and locked with the fixed groove (28).

8. The multi-copter unmanned vehicle for logistics transportation according to claim 5, wherein: The connecting sleeve (22) is fixedly connected with a partition plate (30) inside, the fixed rod (32) is fixedly connected with the partition plate (30), the other side of the partition plate (30) is provided with a limiting plate (31), the limiting plate (31) is slidably connected with the inner wall of the connecting sleeve (22), and the limiting plate (31) is fixedly connected with the connecting column (23).

9. The multi-copter unmanned vehicle for logistics transportation according to claim 1, wherein: The fixed plate (5) is fixedly connected with a supporting rod (4) on the bottom surface.

10. The multi-copter unmanned vehicle for logistics transportation according to claim 1, wherein: The two fixed plates (5) are fixedly connected through a plurality of horizontal bars (11).

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