Unmanned aerial vehicle multi-disc combined material frame system

Abstract

The utility model relates to the technical field of unmanned aerial vehicle cargo carrying, in particular to an unmanned aerial vehicle multi-disc combined material frame system which comprises a bearing shaft, a plurality of bearing layers are arranged on the bearing shaft in the length direction of the bearing shaft, and each bearing layer is provided with a plurality of bearing parts in the perimeter direction of the bearing layer; each bearing part is provided with a material frame used for containing goods and a sliding block, each material frame is provided with a sliding groove used for being in sliding fit with the corresponding sliding block, the two ends of each sliding groove are open, the bearing shaft is provided with a plurality of supporting plates used for bearing the material frames corresponding to the bearing layers, the supporting plates are arranged between the adjacent bearing layers at intervals, and each supporting plate is provided with a first notch. The first notch is matched with the material frame; and the driving mechanism is used for driving the bearing layers to rotate. The unmanned aerial vehicle logistics distribution system has the advantages that automatic, efficient and multi-point distribution of goods is achieved, the distribution efficiency of unmanned aerial vehicle logistics is remarkably improved, and the material taking and placing convenience in unmanned aerial vehicle logistics is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicle cargo loading, and in particular to a multi-disc combined material frame system for unmanned aerial vehicles. Background Art

[0002] In the field of logistics and distribution, the use of drones for cargo delivery can be flexibly applied to various distribution environments, greatly saving distribution resources and improving distribution efficiency. As drone technology develops rapidly, higher requirements are placed on the types and quantities of cargo carried by drones.

[0003] At present, most of the delivery tasks completed by the automatic delivery system of drones are only the delivery of goods between two points, that is, only one piece of goods can be delivered to a designated destination. Although some drones can carry more goods to multiple destinations, they mostly rely on manual labor to pick up the goods separately after arriving at the corresponding destination. This method of delivery is inefficient and has a high workload. Therefore, designing a multifunctional material frame system that can be used in drones and can carry multiple materials at a time for easy access is a technical problem that corporate R&D personnel urgently need to solve. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present application provides a multi-disc combination material frame system for a drone.

[0005] The above invention objectives of the present application are achieved through the following technical solutions:

[0006] A bearing shaft, wherein the bearing shaft is provided with a plurality of bearing layers along its length direction, each of the bearing layers is provided with a plurality of bearing parts along its circumference direction, each of the bearing parts is provided with a material frame for placing goods and a slider, each of the material frames is provided with a slide groove for slidingly cooperating with the slider and having openings at both ends, the bearing shaft is provided with a plurality of supporting plates for supporting the material frames corresponding to the bearing layers, the supporting plates are spaced between adjacent bearing layers, each of the supporting plates is provided with a first notch, and the first notch is adapted to the material frame;

[0007] A driving mechanism is used to drive the plurality of bearing layers to rotate respectively.

[0008] By adopting the above technical scheme, the bearing shaft provides a connection position for the material frame system formed between several bearing layers and the bearing parts to be stably installed on the drone. The sliders equipped on each bearing part are matched with the pallet, which can stably place and fix the material frame. When the drone passes through the delivery route point, the rotation of each bearing layer is controlled by starting the driving mechanism, so that the corresponding bearing layer drives the bearing part where the designated delivery material frame is located to rotate to the first notch, and the corresponding next bearing layer drives the slider of the bearing part to rotate to just below the first notch. At this time, under the adaptation of the material frame and the first notch, the designated material frame can slide to the next bearing layer and cooperate with the slider of the bearing part. Repeating the above operation can make the designated material frame detach from the material frame system and slide to the designated receiving position to complete the designated cargo delivery. This process does not require manual intervention, can reduce labor costs and work intensity, can realize automatic, efficient and multi-point delivery of goods, significantly improve the delivery efficiency of drone logistics, and improve the convenience of material placement in drone logistics.

[0009] In a preferred example, the present application can be further configured as follows: the first notches of adjacent support plates are located at the same position.

[0010] By adopting the above technical solution, the first notch positions of the support plates are the same, so that the paths of the material frames passing through the support plates are consistent, and there is no need to specify the material frames for unloading materials layer by layer, which can improve the unloading efficiency of the material frames.

[0011] In a preferred example, the present application can be further configured as follows: the drone multi-disc combined material frame system also includes a protective shell, a lifting track and a lifting drive member, the bottom of the protective shell is open, the inner side wall of the protective shell is provided with a limited position track corresponding to each of the bearing layers along its own circumference direction, and a limited position block is provided on the outer side of each of the material frames, the limited position track and the lifting track are both slidably matched with the limited position block, each of the limited position track is provided with a second notch, the second notches of adjacent limited position tracks are at the same position, and the lifting track is vertically slidably provided inside the protective shell and is located between each of the second notches;

[0012] When any of the bearing parts drives the material frame to rotate to the first notch, the limit block is located at the second notch. When the lifting track is located at any of the second notch, the lifting track and the corresponding limit track are spliced ​​to form a complete track. The lifting drive member is used to drive the lifting track to slide vertically.

[0013] By adopting the above technical solution, a protective housing is provided to protect the components of the feeding frame system, and the frames of each bearing part can be unloaded from the bottom opening of the protective housing. In addition, the frames are slidably engaged with the limit rails through the limit blocks, which can improve the stability of the rotation of the bearing part. When the frame needs to slide down, the lifting drive member drives the lifting rail to the second notch of the corresponding limit rail, so that the limit rail and the lifting rail are spliced to form a complete rail, enabling the limit block to rotate into the lifting rail. Then, the lifting drive member drives the lifting rail to drive the frame to slide down to complete the unloading or cooperate with the drive mechanism to enter the limit rail corresponding to any bearing layer, thereby completing the flexible loading of the frame.

[0014] In a preferred example of the present application, it can be further configured that: the lifting drive member is an electric screw rod, the electric screw rod is arranged inside the protective housing and on one side of several of the second notches, and the lifting rail is slidably arranged on the electric screw rod.

[0015] By adopting the above technical solution, using an electric screw rod as the lifting drive member has the characteristics of compact structure and stable operation, and can achieve precise adjustment of the frame in the vertical direction.

[0016] In a preferred example of the present application, it can be further configured that: the protective housing is detachably arranged on the bearing shaft, and the bearing shaft is connected to the unmanned aerial vehicle.

[0017] By adopting the above technical solution, the detachable connection method facilitates the loading operation of the frame. At the same time, connecting the bearing shaft to the unmanned aerial vehicle can facilitate the unmanned aerial vehicle to carry the load.

[0018] In a preferred example of the present application, it can be further configured that: the drive mechanism includes several fixed gears and several variable gears. Several of the fixed gears are coaxially arranged between the bearing layer and the bearing shaft corresponding to several of the bearing layers. A variable shaft member is coaxially arranged inside the bearing shaft. The variable shaft member is slidably connected and rotatably connected to the bearing shaft around its axis. Several of the variable gears are coaxially and fixedly connected to the variable shaft member and correspond to the fixed gears one by one. There is an engagement position on the sliding trajectory of each variable gear. When the variable gear is in the engagement position, the variable gear meshes with the corresponding fixed gear. A drive assembly is arranged inside the bearing shaft for driving the variable shaft member to slide and driving the variable shaft member to rotate.

[0019] By adopting the above technical solution, a movable shaft member is arranged inside the bearing shaft, and a number of movable gears are fixed thereon, so that these movable gears are meshed with the fixed gears on the corresponding bearing layer when in the meshing position. The driving assembly inside the bearing shaft drives the movable shaft member to drive the corresponding movable gear to slide to the meshing position and rotate, thereby driving the corresponding bearing layer to rotate, realizing independent or synchronous control of multiple bearing layers, improving the space utilization rate and flexibility of the material frame system, and ensuring the efficient and stable operation of the unmanned aerial vehicle (UAV) material frame system.

[0020] In a preferred example of the present application, it can be further configured that: the movable shaft member is a ball guide shaft, the driving assembly includes a rotating motor and a displacement telescopic rod, the ball guide shaft is coaxially and fixedly connected with a first transmission gear, the output shaft of the rotating motor is coaxially and fixedly connected with a second transmission gear, the first transmission gear and the second transmission gear are meshed, and a synchronizing member is fixedly connected between the telescopic end of the displacement telescopic rod and one end of the ball guide shaft.

[0021] By adopting the above technical solution, using a ball guide shaft as the movable shaft member can realize that the movable shaft member independently completes sliding and rotation, and drives the first transmission gear coaxially connected with the ball guide shaft to rotate through the rotating motor, and then drives the ball guide shaft to perform a rotational motion along the bearing shaft through the meshed second transmission gear. The displacement telescopic rod can drive the telescopic end to expand and contract to drive the ball guide shaft to slide through the synchronizing member, and can realize precise control of the independent or synchronous rotation of multiple bearing layers.

[0022] In a preferred example of the present application, it can be further configured that: each of the bearing layers is rotatably connected to the bearing shaft by arranging ball bearings.

[0023] By adopting the above technical solution, using ball bearings for rotational connection can improve the radial and axial loads that the system can bear, and is suitable for the working conditions of UAV delivery.

[0024] In a preferred example of the present application, it can be further configured that: the UAV multi-tray combined material frame system further includes a control system and a power supply module, the control system and the power supply module are both arranged on the UAV, and the driving mechanism is controllably connected to the control system and electrically connected to the power supply module.

[0025] By adopting the above technical solution, setting the control system and the power supply module integrated on the UAV can complete precise control and power supply of the driving mechanism, thereby realizing automatic scheduling and blanking of the materials in the material frame, and further improving the UAV delivery efficiency.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The bearing shaft provides a connection position for the material frame system formed between several bearing layers and the bearing parts to be stably installed on the drone. The sliders equipped on each bearing part are matched with the pallet to stably place and fix the material frame. When the drone passes through the delivery path, the driving mechanism is started to control the rotation of each bearing layer, so that the corresponding bearing layer drives the bearing part where the designated delivery material frame is located to rotate to the first notch, and the corresponding next bearing layer drives the slider of the bearing part to rotate to just below the first notch. At this time, under the adaptation of the material frame and the first notch, the designated material frame can slide to the next bearing layer and cooperate with the slider of the bearing part. Repeating the above operation can make the designated material frame detach from the material frame system and slide to the designated receiving position to complete the designated cargo delivery. This process does not require manual intervention, can reduce labor costs and work intensity, can realize automatic, efficient and multi-point delivery of cargo, significantly improve the delivery efficiency of drone logistics, and improve the convenience of material placement in drone logistics.

[0028] 2. A protective shell is provided to provide protection for the components of the feed frame system, and the feed frames of the load-bearing parts can be unloaded from the bottom opening of the protective shell. The feed frames can slide and cooperate with the limit blocks and the limit rails, thereby improving the rotation stability of the load-bearing parts. When the feed frame needs to slide down, the lifting drive component drives the lifting rail to the second notch of the corresponding limit rail, so that the limit rail and the lifting rail are spliced ​​to form a complete rail, so that the limit block can rotate into the lifting rail, and then the lifting drive component drives the lifting rail to drive the feed frame to slide down, completing the unloading or cooperating with the driving mechanism to enter the limit rail corresponding to any load-bearing layer, thereby completing the flexible loading of the feed frame.

[0029] 3. A variable shaft is arranged inside the load-bearing shaft, on which a number of variable gears are fixed, so that these variable gears mesh with the fixed gears on the corresponding load-bearing layer when in the meshing position. The variable shaft is driven by the driving assembly inside the load-bearing shaft to drive the corresponding variable gear to slide to the meshing position and rotate, thereby driving the corresponding load-bearing layer to rotate, thereby realizing independent or synchronous control of multiple load-bearing layers, which can improve the space utilization and flexibility of the material frame system and ensure the efficient and stable operation of the drone material frame system. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of a multi-disc assembly material frame system for a drone in one embodiment of the present application;

[0031] Figure 2 This is a schematic diagram of the structure of the multi-disc assembly frame system of the drone in one embodiment of the present application after removing the protective shell;

[0032] Figure 3 yes Figure 2 A partial enlarged schematic diagram of part A;

[0033] Figure 4 It is a schematic structural diagram of the interior of the bearing shaft after the multi-tray combined material box system of the unmanned aerial vehicle in an embodiment of the present application is cut away.

[0034] Reference numerals: 1, bearing shaft; 2, driving mechanism; 21, fixed gear; 22, variable gear; 23, variable shaft member; 24, driving assembly; 241, rotating motor; 242, displacement telescopic rod; 243, first transmission gear; 244, second transmission gear; 245, synchronizing member; 3, bearing layer; 4, bearing portion; 5, material box; 6, slider; 7, chute; 8, support plate; 9, first notch; 10, protective housing; 11, lifting track; 12, lifting driving member; 13, limiting track; 14, limiting block; 15, second notch; 16, ball bearing. Specific embodiments

[0035] The following describes exemplary embodiments of the present application with reference to the accompanying drawings. Various details of the embodiments of the present application are included to assist in understanding, and they should be considered merely exemplary. Therefore, those of ordinary skill in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted below.

[0036] It should be noted that the terms "first", "second", etc. in the present invention are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure.

[0037] In addition, the term "and / or" herein merely describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after, unless otherwise specified.

[0038] Next, a multi-tray combined material box system of an unmanned aerial vehicle according to the present application will be described with reference to the accompanying drawings.

[0039] Refer to Figures 1 to 4As shown in the figure, the multi-tray combined bin system of the drone includes a bearing shaft 1 and a driving mechanism 2. The bearing shaft 1 is connected to the drone to facilitate the drone to carry loads. The connection position of the bearing shaft 1 can be the top, middle or bottom. Along the length direction of the bearing shaft 1, a number of bearing layers 3 are provided. Along the circumferential direction of each bearing layer 3, a number of bearing parts 4 are provided. Each bearing part 4 is provided with a bin 5 for placing goods and a slider 6. The bin 5 can be a square bin 5, a circular bin 5 or a combination of bins 5 of various shapes according to actual needs. Each bin 5 is provided with a chute 7 for slidingly cooperating with the slider 6 and having openings at both ends. Corresponding to the bearing layer 3, the bearing shaft 1 is provided with a number of support plates 8 for supporting the bin 5. The support plates 8 are arranged at intervals between adjacent bearing layers 3. Each support plate 8 is provided with a first notch 9. The first notch 9 is adapted to the bin 5. The driving mechanism 2 is used to drive a number of bearing layers 3 to rotate respectively. Specifically, the bearing shaft 1 provides a stable connection position for the bin 5 system formed between a number of bearing layers 3 and bearing parts 4 to be installed on the drone. The sliders 6 equipped on each bearing part 4 cooperate with the support plates 8 to stably place and fix the bin 5. When the drone passes through the delivery waypoint, by starting the driving mechanism 2 to control the rotation of each bearing layer 3, the bearing part 4 where the designated delivery bin 5 is located is driven to rotate to the first notch 9, and the slider 6 of the bearing part 4 driven by the corresponding next bearing layer 3 rotates to directly below the first notch 9. At this time, under the matching action of the bin 5 and the first notch 9, the designated bin 5 can slide down to the next bearing layer 3 and cooperate with the slider 6 of the bearing part 4. By repeating the above operation, the designated bin 5 can be detached from the bin 5 system and slide down to the designated receiving position to complete the designated goods delivery. This process does not require manual intervention, can reduce labor costs and work intensity, can realize automatic, efficient and multi-point delivery of goods, significantly improve the delivery efficiency of drone logistics, and improve the convenience of material picking and placing in drone logistics.

[0040] Among them, the positions of the first notches 9 of adjacent support plates 8 are the same, so that the path for the bin 5 to pass through the support plates 8 is consistent, and it is not necessary to specify that the bin 5 is discharged layer by layer, which can improve the discharging efficiency of the bin 5.

[0041] Furthermore, the drone multi-tray combined material frame system further includes a protective housing 10, a lifting track 11, and a lifting driving member 12. The bottom of the protective housing 10 is open. Along the circumferential direction of its inner side wall, a limiting track 13 is provided corresponding to each bearing layer 3. A limiting block 14 is provided on the outer side of each material frame 5. The limiting track 13 and the lifting track 11 are both slidably engaged with the limiting block 14. A second notch 15 is formed in each limiting track 13, and the positions of the second notches 15 of adjacent limiting tracks 13 are the same. The lifting track 11 is vertically slidably arranged inside the protective housing 10 and is located between the second notches 15. When any bearing part 4 drives the material frame 5 to rotate to the first notch 9, the limiting block 14 is located at the second notch 15. When the lifting track 11 is located at any second notch 15, the lifting track 11 and the corresponding limiting track 13 are spliced to form a complete track. The lifting driving member 12 is used to drive the lifting track 11 to slide vertically. By providing the protective housing 10, it can protect the various components of the material frame 5 system, and enable the material frames 5 of each bearing part 4 to be unloaded from the bottom opening of the protective housing 10. In addition, the material frame 5 is slidably engaged with the limiting track 13 through the limiting block 14, which can improve the stability of the rotation of the bearing part 4. When the material frame 5 needs to slide down, the lifting driving member 12 drives the lifting track 11 to the second notch 15 of the corresponding limiting track 13, so that the limiting track 13 and the lifting track 11 are spliced to form a complete track, enabling the limiting block 14 to rotate into the lifting track 11. Then, the lifting driving member 12 drives the lifting track 11 to drive the material frame 5 to slide down to complete the unloading or cooperate with the driving mechanism 2 to enter the limiting track 13 corresponding to any bearing layer 3 to complete the flexible loading of the material frame 5.

[0042] Specifically, the lifting driving member 12 is an electric screw rod. The electric screw rod is arranged inside the protective housing 10 and is located on one side of a plurality of second notches 15. The lifting track 11 is slidably arranged on the electric screw rod. By using the electric screw rod as the lifting driving member 12, it has the characteristics of compact structure and stable operation, and can achieve precise adjustment of the material frame 5 in the vertical direction.

[0043] In addition, the protective housing 10 is detachably arranged on the bearing shaft 1, and the bearing shaft 1 is connected to the drone. Through the detachable connection method, it is convenient for the loading operation of the material frame 5. Specifically, the detachable method can adopt threaded connection, fitting connection, etc., which will not be elaborated here.

[0044] In one embodiment, the driving mechanism 2 includes a plurality of fixed gears 21 and a plurality of movable gears 22. The plurality of fixed gears 21 are coaxially arranged between the bearing layer 3 and the bearing shaft 1 corresponding to the plurality of bearing layers 3 respectively. A movable shaft member 23 is coaxially arranged inside the bearing shaft 1. The movable shaft member 23 is slidably connected and rotatably connected to the bearing shaft 1 about its axis. The plurality of movable gears 22 are all coaxially and fixedly connected to the movable shaft member 23 and correspond to the fixed gears 21 one by one. There is an engagement position on the sliding track of each movable gear 22. When the movable gear 22 is in the engagement position, the movable gear 22 meshes with the corresponding fixed gear 21. A driving component 24 for driving the sliding and rotation of the movable shaft member 23 is arranged inside the bearing shaft 1. By arranging the movable shaft member 23 inside the bearing shaft 1, with a plurality of movable gears 22 fixed thereon, the movable gears 22 mesh with the corresponding fixed gears 21 on the bearing layer 3 when in the engagement position. The driving component 24 inside the bearing shaft 1 drives the movable shaft member 23 to drive the corresponding movable gear 22 to slide to the engagement position and rotate, thereby driving the corresponding bearing layer 3 to rotate, realizing independent or synchronous control of the plurality of bearing layers 3, improving the space utilization rate and flexibility of the material box 5 system, and ensuring the efficient and stable operation of the unmanned aerial vehicle material box 5 system.

[0045] It should be noted that the distances between each variable gear and the corresponding adjacent fixed gear 21 can be different or partially the same. When the distances are all different, independent control of each bearing layer 3 can be realized. When the distances are partially the same, synchronous control of some bearing layers 3 can be realized. The staff can adjust the distances between each variable gear and the corresponding adjacent fixed gear 21 according to the actual situation.

[0046] Specifically, in this embodiment, the movable shaft member 23 is a ball guide shaft. The driving component 24 includes a rotating motor 241 and a variable telescopic rod 242. A first transmission gear 243 is coaxially and fixedly connected to the ball guide shaft. The output shaft of the rotating motor 241 is coaxially and fixedly connected to a second transmission gear 244. The first transmission gear 243 and the second transmission gear 244 are meshed. A synchronizing member 245 is fixedly connected between the telescopic end of the variable telescopic rod 242 and one end of the ball guide shaft. By using the ball guide shaft as the movable shaft member 23, the movable shaft member 23 can independently complete sliding and rotation. And the rotating motor 241 drives the first transmission gear 243 coaxially connected to the ball guide shaft to rotate, and then drives the ball guide shaft to rotate along the bearing shaft 1 through the meshed second transmission gear 244. The variable telescopic rod 242 can drive the telescopic end to expand and contract to drive the ball guide shaft to slide through the synchronizing member 245, and can realize precise control of the independent or synchronous rotation of the plurality of bearing layers 3.

[0047] It should be noted that the above variable displacement telescopic rods 242 can all adopt conventional electric telescopic rods or linear motors and other linear driving components that can drive the ball guide shaft to move linearly. The ball guide shaft is a mechanism that uses ball rolling to achieve self-rotation and sliding motion. Its structure and working principle are common knowledge for those skilled in the art and will not be elaborated here.

[0048] Preferably, each bearing layer 3 is rotatably connected to the bearing shaft 1 by arranging ball bearings 16. By using ball bearings 16 for rotational connection, the radial and axial loads that the system can bear can be increased, which is suitable for the working conditions of UAV delivery.

[0049] In addition, the UAV multi-tray combined bin system further includes a control system (not shown in the figure) and a power supply module (not shown in the figure). The control system and the power supply module are both arranged on the UAV. The driving mechanism 2 is controllably connected to the control system and is electrically connected to the power supply module. By arranging the control system and the power supply module integrated on the UAV, precise control of the driving mechanism 2 and power supply can be completed, so as to realize the automatic scheduling and discharging of the goods in the bin 5, and further improve the UAV delivery efficiency.

[0050] The implementation principle of a UAV multi-tray combined bin system according to an embodiment of the present application is as follows:

[0051] (1) Install the bin 5: After removing the protective housing 10, the chute 7 of the bin 5 is fitted with the slider 6 of the bearing part 4, and then the tray 8 is used for bearing, so that the installation of a single bin 5 is completed. Repeat the above operation to complete the installation of the bin 5 layer by layer one by one; in addition, the protective housing 10 may not be removed, and the bin 5 is installed starting from the bearing layer 3 at the bottom opening end of the protective housing 10, that is, when the bin 5 enters from the first notch 9 of the bottom tray 8, the chute 7 of the bin 5 is fitted with the slider 6 of the bearing part 4, and through the cooperation of the driving mechanism 2 and the limiting block 14 and the limiting track 13, the bin 5 is automatically transferred into the bearing layer 3 one by one to complete the installation, and in cooperation with the lifting track 11 and the lifting driving member 12, the installation of the bin 5 layer by layer is completed.

[0052] (2) The UAV unloads the bin 5 when reaching the passing point: The control system sends information to the driving mechanism 2 and the lifting driving member 12 according to the position of the corresponding bin 5, so that the driving mechanism 2 drives each bearing layer 3 to drive the bearing part 4 where the specified bin 5 to be delivered is located to rotate to the first notch 9, and the lifting driving member 12 drives the lifting track 11 to slide to the second notch 15 of the corresponding limiting track 13. When the bearing part 4 rotates to the first notch 9, the limiting block 14 of the bin 5 cooperates with the lifting track 11, and the lifting track 11 drives the bin 5 to slide down to the bottom opening end of the protective housing 10 to complete the specified goods delivery.

[0053] It should be noted that several drone multi-tray combined material frame systems of the present application can be provided. They are connected to the drone through several bearing shafts 1 to convey more goods. Alternatively, several drones can be connected to the bearing shaft 1 to handle the case of a larger cargo load. Moreover, the present application can also be connected to other flyable and movable devices through the bearing shaft 1 to achieve the function of multi-point cargo distribution.

[0054] The above specific embodiments do not limit the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A multi-tray combined material box system for a drone, characterized in that, Including: A bearing shaft (1), along the length direction of the bearing shaft (1), a plurality of bearing layers (3) are provided. Along the circumferential direction of each bearing layer (3), a plurality of bearing parts (4) are provided. Each bearing part (4) is provided with a material box (5) for placing goods and a slider (6). Each material box (5) is provided with a chute (7) for slidingly cooperating with the slider (6) and having openings at both ends. Corresponding to the bearing layer (3), the bearing shaft (1) is provided with a plurality of support plates (8) for supporting the material box (5). The support plates (8) are arranged at intervals between adjacent bearing layers (3). Each support plate (8) is provided with a first notch (9), and the first notch (9) is adapted to the material box (5). A driving mechanism (2) for respectively driving a plurality of the bearing layers (3) to rotate.

2. The multi-tray combined material frame system for a drone according to claim 1, wherein The positions of the first notches (9) of adjacent support plates (8) are the same.

3. The multi-tray combined material frame system for a drone according to claim 2, wherein, It further includes a protective housing (10), a lifting track (11) and a lifting driving member (12). The bottom of the protective housing (10) is open. Along the circumferential direction of the inner side wall of the protective housing (10) corresponding to each bearing layer (3), a limiting track (13) is provided. A limiting block (14) is arranged on the outer side of each material box (5). The limiting track (13) and the lifting track (11) are both slidably engaged with the limiting block (14). Each limiting track (13) is provided with a second notch (15). The positions of the second notches (15) of adjacent limiting tracks (13) are the same. The lifting track (11) is vertically slidably arranged inside the protective housing (10) and is located between each second notch (15). When any bearing part (4) drives the material box (5) to rotate to the position of the first notch (9), the limiting block (14) is located at the second notch (15). When the lifting track (11) is located at any second notch (15), the lifting track (11) and the corresponding limiting track (13) are spliced to form a complete track. The lifting driving member (12) is used to drive the lifting track (11) to slide vertically.

4. The multi-tray combined material frame system for a drone according to claim 3, wherein The lifting driving member (12) is an electric screw rod. The electric screw rod is arranged inside the protective housing (10) and is located on one side of a plurality of the second notches (15). The lifting track (11) is slidably arranged on the electric screw rod.

5. The multi-tray combined material frame system for a drone according to claim 3, characterized in that The protective housing (10) is detachably arranged on the bearing shaft (1), and the bearing shaft (1) is connected to a drone.

6. The multi-tray combined material frame system for a drone according to claim 1, wherein The driving mechanism (2) includes a plurality of fixed gears (21) and a plurality of variable gears (22). The plurality of fixed gears (21) are coaxially arranged between the bearing layer (3) and the bearing shaft (1) corresponding to the plurality of bearing layers (3) respectively. A variable shaft member (23) is coaxially arranged inside the bearing shaft (1). The variable shaft member (23) is slidably connected and rotatably connected to the bearing shaft (1) about its axis. The plurality of variable gears (22) are all coaxially and fixedly connected to the variable shaft member (23) and correspond to the fixed gears (21) one by one. There is an engagement position on the sliding trajectory of each variable gear (22). When the variable gear (22) is located at the engagement position, the variable gear (22) meshes with the corresponding fixed gear (21). A driving component (24) for driving the sliding and rotation of the variable shaft member (23) is arranged inside the bearing shaft (1).

7. The multi-tray combined material frame system of a drone according to claim 6, characterized in that The variable shaft member (23) is a ball guide shaft. The driving component (24) includes a rotary motor (241) and a displacement telescopic rod (242). A first transmission gear (243) is coaxially and fixedly connected to the ball guide shaft. An output shaft of the rotary motor (241) is coaxially and fixedly connected to a second transmission gear (244). The first transmission gear (243) and the second transmission gear (244) are meshed. A synchronizing member (245) is fixedly connected between the telescopic end of the displacement telescopic rod (242) and one end of the ball guide shaft.

8. The multi-tray combined material frame system for a drone according to claim 1, wherein, Each bearing layer (3) is rotatably connected to the bearing shaft (1) by means of a ball bearing (16).

9. The multi-tray combined material frame system for an unmanned aerial vehicle according to claim 1, wherein It further includes a control system and a power supply module. The control system and the power supply module are both arranged on the unmanned aerial vehicle. The driving mechanism (2) is controllably connected to the control system and is electrically connected to the power supply module.

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