Unmanned aerial vehicle multi-point distribution cargo hold system

Abstract

The utility model relates to the technical field of unmanned aerial vehicle distribution, in particular to an unmanned aerial vehicle multi-point distribution cargo hold system which comprises a center connecting shaft, the center connecting shaft is provided with a plurality of storage layers, each storage layer is provided with a plurality of storage parts, each storage part is provided with a cargo hold and vertically provided with a slide way groove with the two ends open, and the slide way groove is provided with a slide way. Each cargo hold is provided with a sliding block used for being in sliding fit with the corresponding sliding way groove. At least one storage part in each storage layer is a material passing part, and when the material passing parts are located at the material passing positions, the slide way grooves of all the material passing parts are communicated; and the driving mechanism is used for driving the multiple storage layers to rotate. The method has the advantages that manual intervention is not needed, and automatic, efficient and multi-point distribution of the cargo in the cargo hold is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of UAV delivery, and more particularly to a multi-point delivery cargo hold system for UAVs. Background Art

[0002] In the field of logistics distribution, using UAVs for cargo delivery can be flexibly applied to various delivery environments, greatly saving delivery resources and improving delivery efficiency. At present, most of the delivery tasks completed by UAV automatic delivery systems are only the cargo delivery between two points, that is, only one piece of cargo can be delivered to the designated destination. Although some UAVs can carry more cargo to multiple destinations for separate delivery, most of them rely on manual operation for separate pick-up after arriving at the corresponding destination. This delivery method has low efficiency and high labor intensity. Therefore, designing a multi-point delivery cargo hold system for UAVs that can automatically deliver different goods to different destinations respectively is a technical problem that enterprise R & D personnel urgently need to solve. Summary of the Invention

[0003] In view of the above deficiencies in the prior art, the present application provides a multi-point delivery cargo hold system for UAVs.

[0004] The above-mentioned invention object of the present application is achieved through the following technical solutions:

[0005] A central connecting shaft, the central connecting shaft is connected to the UAV, and a plurality of storage layers are arranged along the length direction of the central connecting shaft. A plurality of storage parts are arranged along the circumferential direction of each storage layer. Each storage part is provided with a cargo hold for placing goods and a slideway groove vertically opened with both ends open. Each cargo hold is provided with a slider for slidingly cooperating with the slideway groove;

[0006] At least one of the storage parts in each storage layer is a material-passing part. There is a material-passing position on the rotation trajectory of the material-passing part. When the material-passing part is in the material-passing position, the corresponding slideway groove and all the slideway grooves below the material-passing part are communicated to form at least one temporary material-down channel;

[0007] A driving mechanism, the driving mechanism is used to drive the rotation of a plurality of the storage layers respectively.

[0008] By adopting the above technical solution, the central connecting shaft provides a connection position for firmly installing the cargo hold storage structure formed between several storage layers and storage parts to the unmanned aerial vehicle (UAV). When the UAV passes through the delivery waypoint, by starting the driving mechanism, each storage layer is controlled to rotate, so that the material passing part of each storage layer and the storage part where the designated delivery cargo hold is located rotate to the material passing position. At this time, the slideway groove of the material passing part and its downward slideway groove are both connected to form a temporary material unloading channel, allowing the slider located on the material unloading channel to drive the cargo hold to slide down to the designated receiving position under its own gravity, completing the designated cargo delivery. During this process, no manual intervention is required, realizing automatic, efficient and multi-point delivery of cargo hold goods, significantly improving the delivery efficiency of UAV logistics, enhancing the flexibility and accuracy of UAV delivery, and reducing labor costs and work intensity.

[0009] In a preferred example, the present application can be further configured as follows: the UAV multi-point delivery cargo hold system further includes a locking mechanism, and the locking mechanism is used to close the bottom opening end of the slideway groove, and when the material passing part is in the material passing position, the locking mechanism is used to open the bottom opening end of the slideway groove.

[0010] By adopting the above technical solution, the slideway grooves equipped in each storage part are matched with the locking structure, which can stably place and fix the cargo hold, play a role in bearing the cargo hold, and after forming the temporary material unloading channel, through the automatic unlocking of the locking mechanism, the slider located on the material unloading channel can drive the cargo hold to slide down to the designated receiving position under its own gravity, completing the designated cargo delivery.

[0011] In a preferred example, the present application can be further configured as follows: the locking mechanism includes several mounting seats, each mounting seat is correspondingly arranged at the bottom of the storage part, the mounting seat is provided with a mounting groove, an elastic member and a blocking rod are arranged in the mounting groove, the blocking rod is slidably arranged in the mounting groove and is located at the bottom opening end of the slideway groove, the elastic member is used to provide a thrust force for the blocking rod to move close to the bottom opening end of the slideway groove, a connecting rod is extended from the blocking rod, and a limiting telescopic rod is arranged on the central connecting shaft. When the material passing part is in the material passing position, the limiting telescopic rod is used to extend to the connecting rod to abut against the connecting rod.

[0012] By adopting the above technical solution, the blocking rod in the normal state is located at the bottom opening end of the slideway groove under the action of the elastic member to play a role in closing the slideway groove and preventing the cargo hold from sliding. When the UAV reaches the designated position and the material passing part rotates to the material passing position, the limiting telescopic rod extends to abut against the connecting rod. At this time, the blocking rod retreats into the interior of the mounting groove under the reaction force of the rotational force to open the bottom opening end of the slideway groove, realizing the automatic delivery of the cargo hold.

[0013] In a preferred example, the present application can be further configured as follows: a strip sliding hole is opened at the bottom of the mounting seat along the length direction of the mounting groove, the strip sliding hole is connected to the mounting groove, and the connecting rod is slidably arranged inside the strip sliding hole and extends out of the strip sliding hole.

[0014] By adopting the above technical solution, the connecting rod is set in the strip sliding hole, which can ensure that it abuts against the limiting telescopic rod while limiting the sliding path of the blocking rod in the installation groove, thereby preventing the blocking rod from detaching from the installation groove and improving the safety of cargo transportation in the cargo hold.

[0015] In a preferred example, the present application can be further configured as follows: the elastic member is a spring, and the spring is fixedly connected between the blocking rod and the bottom wall of the installation groove.

[0016] By adopting the above technical solution, the spring can continuously provide elastic restoring force to the blocking rod through elastic deformation, so as to continuously push the blocking rod to move closer to the bottom opening end of the slideway groove.

[0017] In a preferred example, the present application can be further configured as follows: a plurality of positioning marbles are arranged on the central connecting axis corresponding to the storage layer, a plurality of positioning grooves which are adapted to the shape and size of the positioning marbles are opened at the bottom of each storage layer, and a fixed position exists on the rotation trajectory of the storage layer, and when the storage layer rotates to the fixed position, the positioning marbles are plugged into and matched with the positioning grooves.

[0018] By adopting the above technical solution, when the UAV performs delivery tasks, the positioning marbles and the positioning grooves are plugged in and cooperated to improve the stability of the storage layer when loading and unloading materials do not need to be rotated, and when rotation is required, the storage layer is driven to rotate by the driving mechanism, and the positioning marbles can be disengaged from the positioning grooves that are adapted in shape and size and rotate, thereby providing convenience for the cargo hold system, which is suitable for this working condition.

[0019] In a preferred example, the present application can be further configured as follows: the driving mechanism includes a plurality of fixed gears and a plurality of variable gears, the plurality of fixed gears are respectively coaxially arranged between the storage layer and the central connecting shaft corresponding to the plurality of storage layers, a variable shaft is coaxially arranged inside the central connecting shaft, the variable shaft is slidably connected and self-rotatingly connected to the central connecting shaft, a plurality of variable gears are coaxially fixedly connected to the variable shaft and correspond one-to-one to the fixed gears, each of the variable gears has a meshing position on its sliding trajectory, when the variable gear is located at the meshing position, the variable gear meshes with the corresponding fixed gear, and a driving component for driving the variable shaft to slide and drive the variable shaft to rotate is arranged inside the central connecting shaft.

[0020] By adopting the above technical solution, a movable shaft member is arranged inside the central connecting shaft, and a number of movable gears are fixed thereon, so that these movable gears are meshed with the fixed gears on the corresponding storage layers when in the meshing position. The driving component inside the central connecting shaft drives the movable shaft member to drive the corresponding movable gears to slide to the meshing position and rotate, thereby driving the corresponding storage layers to rotate, realizing independent or synchronous control of multiple storage layers, improving the space utilization rate and flexibility of the cargo hold system, and ensuring the efficient and stable operation of the unmanned aerial vehicle multi-point distribution cargo hold system.

[0021] In a preferred example, the present application can be further configured as follows: the movable shaft member is a ball guide shaft, the driving component 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.

[0022] By adopting the above technical solution, using a ball guide shaft as the movable shaft member can enable the movable shaft member to independently complete sliding and rotation. And by driving the first transmission gear coaxially connected with the ball guide shaft to rotate through the rotating motor, and then driving the ball guide shaft to perform a rotational motion along the central connecting shaft through the meshed second transmission gear, the displacement telescopic rod can drive the telescopic end to expand and contract, so as 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 storage layers.

[0023] In a preferred example, the present application can be further configured as follows: each of the storage layers is rotatably connected to the central connecting shaft by arranging ball bearings.

[0024] 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 unmanned aerial vehicle distribution.

[0025] In a preferred example, the present application can be further configured as follows: the unmanned aerial vehicle multi-point distribution cargo hold system 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, and the locking mechanism and the driving mechanism are both controlled and connected to the control system and are both electrically connected to the power supply module.

[0026] By adopting the above technical solution, setting the control system and the power supply module integrated on the unmanned aerial vehicle can complete the precise control and power supply of the locking mechanism and the driving mechanism, thereby realizing the automatic scheduling and discharging of the cargo in the cargo hold, and further improving the distribution efficiency of the unmanned aerial vehicle.

[0027] In a preferred example, the present application can be further configured as follows: the multi-point distribution cargo hold system of the drone further includes a protective housing, which is detachably arranged on the central connecting shaft and has an open bottom, and the central connecting shaft is connected to the drone.

[0028] By adopting the above technical solution, a protective housing is provided to protect the various components of the cargo hold system, and the cargo holds of the storage parts can discharge materials from the open bottom of the protective housing. In addition, through the detachable connection method, it is convenient to load the cargo hold. By connecting the central connecting shaft to the drone, the payload of the drone is completed.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The central connecting shaft provides a stable connection position for the cargo hold storage structure formed between several storage layers and storage parts to be installed on the drone. When the drone passes through the distribution waypoint, by starting the driving mechanism to control the rotation of each storage layer, the material passing parts of each storage layer and the storage part where the designated delivery cargo hold is located are rotated to the material passing position. At this time, the slideway groove of the material passing part and its downward slideway groove are both connected to form a temporary material discharging channel, allowing the slider located on the material discharging channel to drive the cargo hold to slide down to the designated receiving position under its own gravity, completing the designated cargo delivery. During this process, no manual intervention is required, realizing the automatic, efficient and multi-point distribution of the cargo hold goods, which can significantly improve the distribution efficiency of the drone logistics, enhance the flexibility and accuracy of the drone delivery, and reduce the labor cost and working intensity.

[0031] 2. In the normal state, the blocking rod is located at the open end of the bottom of the slideway groove under the action of the elastic member to block the slideway groove and prevent the cargo hold from sliding. When the drone reaches the designated position and the material passing part rotates to the material passing position, the limit telescopic rod extends to abut against the connecting rod. At this time, the blocking rod retracts into the installation groove under the reaction force of the rotational force to open the open end of the bottom of the slideway groove, realizing the automatic delivery of the cargo hold.

[0032] 3. A variable shaft member is arranged inside the central connecting shaft, and several variable gears are fixed on it, so that these variable gears mesh with the fixed gears on the corresponding storage layers when in the meshing position. The variable shaft member is driven by the driving component inside the central connecting shaft to drive the corresponding variable gears to slide to the meshing position and rotate, thereby driving the corresponding storage layer to rotate, realizing the independent or synchronous control of multiple storage layers, improving the space utilization rate and flexibility of the cargo hold system, and ensuring the efficient and stable operation of the multi-point distribution cargo hold system of the drone. Description of the Drawings

[0033] Figure 1 It is a schematic diagram of the overall structure of the multi-point distribution cargo hold system of the drone in an embodiment of the present application;

[0034] Figure 2 It is a partial structural schematic diagram of the multi-point distribution cargo hold system of the unmanned aerial vehicle in an embodiment of the present application;

[0035] Figure 3 It is a partial sectional schematic diagram of the multi-point distribution cargo hold system of the unmanned aerial vehicle in an embodiment of the present application;

[0036] Figure 4 It is a partial structural schematic diagram of the multi-point distribution cargo hold system of the unmanned aerial vehicle after being sectioned in an embodiment of the present application.

[0037] Reference numerals: 1, central connecting shaft; 2, locking mechanism; 21, mounting seat; 22, mounting groove; 23, retaining rod; 24, connecting rod; 25, limiting telescopic rod; 26, spring; 27, strip-shaped sliding hole; 3, driving mechanism; 31, fixed gear; 32, variable gear; 33, variable shaft member; 34, driving assembly; 341, rotating motor; 342, displacement telescopic rod; 343, first transmission gear; 344, second transmission gear; 345, synchronizing member; 4, storage layer; 5, storage part; 6, cargo hold; 7, slideway groove; 8, slider; 9, material passing part; 10, positioning ball; 11, positioning groove; 12, ball bearing. Detailed implementation manners

[0038] 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 facilitate 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 clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0039] It should be noted that terms such as "first" and "second" 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.

[0040] 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.

[0041] The following describes a multi-point delivery cargo hold system for a drone of the present application with reference to the accompanying drawings.

[0042] Refer to Figures 1 to 4 , where, as Figure 1 shown, the multi-point delivery cargo hold system for a drone includes a central connecting shaft 1 and a driving mechanism 3. The central connecting shaft 1 is provided with a plurality of storage layers 4 along its own length direction. Each storage layer 4 is provided with a plurality of storage parts 5 along its own circumferential direction. Each storage part 5 is provided with a cargo hold 6 for placing goods and is vertically provided with a slideway groove 7 with both ends open. The cargo hold 6 can be a square cargo hold 6, a circular cargo hold 6, or a combination of cargo holds 6 of various shapes according to actual needs. Each cargo hold 6 is provided with a slider 8 for slidingly cooperating with the slideway groove 7; at least one storage part 5 in each storage layer 4 is a material-passing part 9. There is a material-passing position on the rotation trajectory of the material-passing part 9. When the material-passing part 9 is at the material-passing position, all the slideway grooves 7 corresponding to the slideway groove (7) and below the material-passing part (9) are communicated to form at least one temporary material-dropping channel. The driving mechanism 3 is used to drive the plurality of storage layers 4 to rotate respectively. Among them, the central connecting shaft 1 provides a connection position for stably installing the cargo hold 6 structure formed between the plurality of storage layers 4 and the storage parts 5 to the drone. When the drone passes through the delivery waypoint, by starting the driving mechanism 3 to control the rotation of each storage layer 4, the material-passing part 9 of each storage layer 4 and the storage part 5 where the designated delivery cargo hold 6 is located are rotated to the material-passing position. At this time, the slideway groove 7 of this material-passing part 9 and the slideway grooves 7 below it are all communicated to form a temporary material-dropping channel, allowing the slider 8 located on the material-dropping channel to drive the cargo hold 6 to slide down to the designated receiving position under its own gravity to complete the designated cargo delivery. During this process, without manual intervention, the automatic, efficient, and multi-point delivery of the goods in the cargo hold 6 is realized, which can significantly improve the delivery efficiency of drone logistics, enhance the flexibility and accuracy of drone delivery, and can reduce the labor cost and work intensity.

[0043] Furthermore, the multi-point delivery cargo hold system for a drone further includes a locking mechanism 2. The locking mechanism 2 is used to close the bottom opening end of the slideway groove 7, and when the material-passing part 9 is at the material-passing position, the locking mechanism 2 is used to open the bottom opening end of the slideway groove 7. The slideway grooves 7 equipped with locking structures in each storage part 5 can stably place and fix the cargo hold 6, can play a role in bearing the cargo hold 6, and after forming a temporary material-dropping channel, through the automatic unlocking of the locking mechanism 2, it can enable the slider 8 located on the material-dropping channel to drive the cargo hold 6 to slide down to the designated receiving position under its own gravity to complete the designated cargo delivery.

[0044] It should be noted that any storage part 5 can be used as the material passing part 9 after the rotation of the storage layer 4. When the slideway grooves 7 of any material passing part 9 are connected, the position of the material passing part 9 is the material passing position. In addition, the slideway grooves 7 of any two adjacent upper and lower storage parts 5 can be used as a temporary blanking channel. In the actual operation process, except for the topmost first storage layer 4, any one of the storage parts 5 on each storage layer 4 can be vacated as an alternative for the material passing part 9, so as to facilitate the smooth blanking of the goods in each cargo hold 6. In addition, through the dislocation setting method, the storage parts 5 on each storage layer 4 are staggered, and the driving mechanism 3 is used to drive the rotation of each storage layer 4 to make way for the cargo hold 6 on the specified storage part 5, and then the locking mechanism 2 is unlocked, so that the cargo hold 6 on each storage part 5 can directly blank through the slideway groove 7.

[0045] In one embodiment, as Figure 2 and Figure 3 shown, the locking mechanism 2 includes a plurality of mounting seats 21. Each mounting seat 21 is correspondingly arranged at the bottom of the storage part 5. The mounting seat 21 is provided with a mounting groove 22. An elastic member and a stop rod 23 are arranged in the mounting groove 22. The stop rod 23 is slidably arranged in the mounting groove 22 and is located at the bottom opening end of the slideway groove 7. The elastic member is used to provide a thrust force for the stop rod 23 to move close to the bottom opening end of the slideway groove 7. The stop rod 23 is extended with a connecting rod 24. The central connecting shaft 1 is provided with a limit telescopic rod 25. When the material passing part 9 is in the material passing position, the limit telescopic rod 25 is used to extend to the connecting rod 24 to abut against the connecting rod 24. During operation, in the normal state, the stop rod 23 is located at the bottom opening end of the slideway groove 7 under the action of the elastic member to play a role in closing the slideway groove 7 and preventing the cargo hold 6 from sliding. When the unmanned aerial vehicle reaches the specified position and the material passing part 9 rotates to the material passing position, the limit telescopic rod 25 extends to abut against the connecting rod 24. At this time, the stop rod 23 retracts into the interior of the mounting groove 22 under the reaction force of the rotational force to open the bottom opening end of the slideway groove 7 and realize the automatic delivery of the cargo hold 6.

[0046] Specifically, the elastic member is a spring 26. The spring 26 is fixedly connected between the stop rod 23 and the inner bottom wall of the mounting groove 22. The spring 26 can continuously provide an elastic restoring force for the stop rod 23 through elastic deformation to continuously push the stop rod 23 to move close to the bottom opening end of the slideway groove 7.

[0047] Furthermore, a strip-shaped sliding hole 27 is opened at the bottom of the mounting seat 21 along the length direction of the mounting groove 22. The strip-shaped sliding hole 27 is communicated with the mounting groove 22. The connecting rod 24 is slidably arranged inside the strip-shaped sliding hole 27 and extends outside the strip-shaped sliding hole 27. By arranging the connecting rod 24 in the strip-shaped sliding hole 27, it can ensure that while abutting against the limit telescopic rod 25, the sliding path of the stop rod 23 in the mounting groove 22 is restricted, thereby preventing the stop rod from disengaging from the mounting groove 22 and improving the safety of the cargo transportation in the cargo hold 6.

[0048] In addition, in order to prevent the storage layer 4 from rotating on its own when the drone is performing a delivery task, the central connecting shaft 1 is provided with a number of positioning marbles 10 corresponding to the storage layer 4. The positioning marble 10 is a precision component that uses the elastic force of a spring 26 to drive the movement and reset of a ball to achieve a positioning function. A number of positioning grooves 11 that are adapted in shape and size to the positioning marbles 10 are provided at the bottom of each storage layer 4. There are fixed positions on the rotation trajectory of the storage layer 4. When the storage layer 4 rotates to a fixed position, the positioning marbles 10 are inserted and matched with the positioning grooves 11. When the drone is performing a delivery task, through the insertion and matching effect of the positioning marbles 10 and the positioning grooves 11, the stability of the storage layer 4 when there is no need to rotate for loading and unloading can be improved. And when rotation is required, the storage layer 4 is driven to rotate by the driving mechanism 3, and the positioning marbles 10 can be disengaged from the positioning grooves 11 that are adapted in shape and size to rotate, so as to provide the convenience of the cargo hold 6 system and be applicable to this working condition.

[0049] In one embodiment, as Figure 1 and Figure 4 shown, the driving mechanism 3 includes a number of fixed gears 31 and a number of variable gears 32. The number of fixed gears 31 are coaxially arranged between the storage layer 4 and the central connecting shaft 1 corresponding to the number of storage layers 4 respectively. A variable shaft member 33 is coaxially arranged inside the central connecting shaft 1. The variable shaft member 33 is slidably connected and rotatably connected to the central connecting shaft 1 by itself. The number of variable gears 32 are all coaxially fixedly connected to the variable shaft member 33 and correspond to the fixed gears 31 one by one. There is an engagement position on the sliding trajectory of each variable gear 32. When the variable gear 32 is in the engagement position, the variable gear 32 meshes with the corresponding fixed gear 31. A driving assembly 34 for driving the sliding and rotation of the variable shaft member 33 is arranged inside the central connecting shaft 1. By arranging the variable shaft member 33 inside the central connecting shaft 1, with a number of variable gears 32 fixed thereon, the variable gears 32 mesh with the corresponding fixed gears 31 on the corresponding storage layer 4 when in the engagement position. The driving assembly 34 inside the central connecting shaft 1 drives the variable shaft member 33 to drive the corresponding variable gear 32 to slide to the engagement position and rotate, thereby driving the corresponding storage layer 4 to rotate, realizing independent or synchronous control of multiple storage layers 4, improving the space utilization rate and flexibility of the cargo hold 6 system, and ensuring the efficient and stable operation of the multi-point delivery cargo hold system of the drone.

[0050] It should be noted that the distances between each variable gear and the corresponding adjacent fixed gear 31 can be different, or some can be the same. When the distances are all different, independent control of each storage layer 4 can be achieved. When some of the distances are the same, synchronous control of some storage layers 4 can be achieved. The staff can adjust the distances between each variable gear and the corresponding adjacent fixed gear 31 according to the actual situation.

[0051] Specifically, the variable shaft member 33 is a ball guide shaft. The drive assembly 34 includes a rotary motor 341 and a displacement telescopic rod 342. A first transmission gear 343 is coaxially and fixedly connected to the ball guide shaft. The output shaft of the rotary motor 341 is coaxially and fixedly connected to a second transmission gear 344. The first transmission gear 343 and the second transmission gear 344 are meshed. A synchronizing member 345 is fixedly connected between the telescopic end of the displacement telescopic rod 342 and one end of the ball guide shaft. By using the ball guide shaft as the variable shaft member 33, the variable shaft member 33 can independently complete sliding and rotation. And the first transmission gear 343 coaxially connected to the ball guide shaft is driven by the rotary motor 341 to rotate, and then the ball guide shaft is driven to perform a rotational motion along the central connecting shaft 1 through the meshed second transmission gear 344. The displacement telescopic rod 342 can drive the telescopic end to expand and contract, so as to drive the ball guide shaft to slide through the synchronizing member 345, and the independent or synchronous rotation of multiple storage layers 4 can be accurately controlled.

[0052] It should be noted that both the above-mentioned limit telescopic rod 25 and the displacement telescopic rod 342 can adopt conventional electric telescopic rods or linear motors and other linear driving members capable of driving the ball guide shaft to perform linear movement. The ball guide shaft is a mechanism that uses ball rolling to achieve self-rotation and sliding movement, and its structure and working principle are common knowledge in the art, so no further description will be given here.

[0053] Preferably, each storage layer 4 is rotatably connected to the central connecting shaft 1 by means of a ball bearing 12. By using the ball bearing 12 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.

[0054] In addition, the UAV multi-point delivery cargo hold system further includes a control system 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 locking mechanism 2 and the driving mechanism 3 are both controlled and connected to the control system and are both electrically connected to the power supply module. By arranging the control system and the power supply module integrated on the UAV, the accurate control and power supply of the locking mechanism 2 and the driving mechanism 3 can be completed, so as to realize the automatic scheduling and discharging of the goods in the cargo hold 6, and further improve the UAV delivery efficiency.

[0055] Preferably, in order to protect the cargo hold 6 system, the drone multi-point distribution cargo hold system also includes a protective shell (not shown in the figure), which is detachably arranged on the central connecting shaft 1 and has an opening at the bottom. By setting the protective shell, protection is provided for the various components of the cargo hold 6 system, and the cargo holds 6 of each storage section 5 can be unloaded from the bottom opening of the protective shell, and the loading operation of the cargo hold 6 is facilitated by a detachable connection method. The central connecting shaft 1 is connected to a drone (not shown in the figure) to facilitate the drone to carry the cargo hold 6. The connection position of the central connecting shaft 1 can be the top, middle or bottom.

[0056] The implementation principle of the drone multi-point delivery cabin system in the present application embodiment is as follows:

[0057] (1) Installing the cargo hold 6: The bottom opening end of the slide groove 7 of the storage part 5 of the bottom storage layer 4 is closed by the locking mechanism 2, and the bottom opening ends of the remaining slide grooves 7 are opened, so that the cargo hold 6 starts from the first storage layer 4 at the top of the central connecting shaft 1, and the slider 8 of the cargo hold 6 is matched with the slide groove 7 of the storage part 5 to make the cargo hold 6 slide to the storage part 5 of the bottom storage layer 4, and then the storage layer 4 is driven to rotate by the driving mechanism 3, so that the slide groove 7 of the adjacent storage part 5 is connected to the slide groove 7 of the upper storage part 5, and the material is continuously unloaded until the bottom storage layer 4 is full, and the bottom opening end of the slide groove 7 of the storage part 5 of the adjacent upper storage layer 4 is closed by the locking mechanism 2, and the material loading work is continued in this way.

[0058] (2) The UAV arrives at the waypoint and unloads the cargo hold 6: The control system sends information to the driving mechanism 3 and the locking mechanism 2 according to the position of the corresponding cargo hold 6, so that the driving mechanism 3 drives the material passing parts 9 of each storage layer 4 and the storage part 5 where the designated cargo hold 6 is located to rotate to the material passing position. When the storage part 5 rotates to the material passing position, the locking mechanism 2 is unlocked, so that the cargo hold 6 can be separated from the cargo hold 6 system through the temporarily formed unloading channel and slide to the designated receiving position, thereby completing the designated cargo delivery.

[0059] It should be noted that a drone multi-point delivery cargo cabin system of the present application can be set up with several, connected to drones through several central connecting shafts to transport more goods, and several drones can also be connected to the central connecting shaft to cope with situations with larger cargo loads, and the present application can also be connected to other flying and mobile equipment through the central connecting shaft to achieve the function of multi-point cargo delivery.

[0060] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art 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 principles of this application should be included in the protection scope of this application.

Claims

1. A multi-point distribution cargo hold system for a drone, characterized in that, Comprising: A central connecting shaft (1), along the length direction of the central connecting shaft (1), a plurality of storage layers (4) are provided. Along the circumferential direction of each storage layer (4), a plurality of storage parts (5) are provided. Each storage part (5) is provided with a cargo hold (6) for placing goods and a slideway groove (7) vertically opened with both ends being open. Each cargo hold (6) is provided with a slider (8) for slidingly cooperating with the slideway groove (7); At least one of the storage parts (5) in each storage layer (4) is a material-passing part (9). There is a material-passing position on the rotation trajectory of the material-passing part (9). When the material-passing part (9) is at the material-passing position, all the slideway grooves (7) corresponding to the slideway groove (7) and below the material-passing part (9) are communicated to form at least one temporary material-dropping channel; A driving mechanism (3) for respectively driving a plurality of the storage layers (4) to rotate.

2. The multi-point delivery cargo hold system of a drone according to claim 1, characterized in that, It further includes a locking mechanism (2). The locking mechanism (2) is used to close the bottom opening end of the slideway groove (7), and when the material-passing part (9) is at the material-passing position, the locking mechanism (2) is used to open the bottom opening end of the slideway groove (7).

3. The multi-point delivery cargo hold system of a drone according to claim 2, wherein The locking mechanism (2) includes a plurality of mounting seats (21). Each mounting seat (21) is correspondingly arranged at the bottom of the storage part (5). The mounting seat (21) is provided with a mounting groove (22). An elastic member and a stop rod (23) are arranged in the mounting groove (22). The stop rod (23) is slidably arranged in the mounting groove (22) and is located at the bottom opening end of the slideway groove (7). The elastic member is used to provide a thrust force for the stop rod (23) to move close to the bottom opening end of the slideway groove (7). The stop rod (23) is extended with a connecting rod (24). The central connecting shaft (1) is provided with a limit telescopic rod (25). When the material-passing part (9) is at the material-passing position, the limit telescopic rod (25) is used to extend to the connecting rod (24) to abut against the connecting rod (24).

4. The multi-point delivery cargo hold system of a drone according to claim 3, characterized in that, At the bottom of the mounting seat (21), a strip-shaped sliding hole (27) is opened along the length direction of the mounting groove (22). The strip-shaped sliding hole (27) is communicated with the mounting groove (22). The connecting rod (24) is slidably arranged inside the strip-shaped sliding hole (27) and extends outside the strip-shaped sliding hole (27).

5. The multi-point delivery cargo hold system of an unmanned aerial vehicle according to claim 3, characterized in that, The elastic member is a spring (26). The spring (26) is fixedly connected between the stop rod (23) and the inner bottom wall of the mounting groove (22).

6. The multi-point distribution cargo hold system of a drone according to claim 1, characterized in that The central connecting shaft (1) is correspondingly provided with a plurality of positioning marbles (10) for the storage layers (4). At the bottom of each storage layer (4), a plurality of positioning grooves (11) are opened, which are adapted in shape and size to the positioning marbles (10). There is a fixed position on the rotation trajectory of the storage layer (4). When the storage layer (4) rotates to the fixed position, the positioning marbles (10) are inserted and cooperated with the positioning grooves (11).

7. The multi-point delivery cargo hold system of an unmanned aerial vehicle according to claim 1, characterized in that, The driving mechanism (3) includes a plurality of fixed gears (31) and a plurality of variable gears (32). The plurality of fixed gears (31) are coaxially arranged between the storage layers (4) and the central connecting shaft (1) corresponding to the plurality of storage layers (4) respectively. A variable shaft member (33) is coaxially arranged inside the central connecting shaft (1). The variable shaft member (33) is slidably connected and rotatably connected to the central connecting shaft (1) about its axis. The plurality of variable gears (32) are all coaxially and fixedly connected to the variable shaft member (33) and correspond to the fixed gears (31) one by one. There is an engagement position on the sliding track of each variable gear (32). When the variable gear (32) is located at the engagement position, the variable gear (32) meshes with the corresponding fixed gear (31). A driving component (34) for driving the sliding and rotation of the variable shaft member (33) is arranged inside the central connecting shaft (1).

8. The multi-point distribution cargo hold system of a drone according to claim 7, wherein, The variable shaft member (33) is a ball guide shaft. The driving component (34) includes a rotating motor (341) and a displacement telescopic rod (342). A first transmission gear (343) is coaxially and fixedly connected to the ball guide shaft. An output shaft of the rotating motor (341) is coaxially and fixedly connected to a second transmission gear (344). The first transmission gear (343) and the second transmission gear (344) are meshed. A synchronizing member (345) is fixedly connected between the telescopic end of the displacement telescopic rod (342) and one end of the ball guide shaft.

9. The multi-point distribution cargo hold system of a drone according to claim 1, characterized in that, Each storage layer (4) is rotatably connected to the central connecting shaft (1) by arranging a ball bearing (12).

10. The multi-point delivery cargo hold system of a drone according to claim 2, characterized in that, 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 locking mechanism (2) and the driving mechanism (3) are both controlled and connected to the control system and are both electrically connected to the power supply module.

11. The multi-point distribution cargo hold system of a drone according to claim 1, characterized in that, It further includes a protective housing. The protective housing is detachably arranged on the central connecting shaft (1) and has an open bottom. The central connecting shaft (1) is connected to the unmanned aerial vehicle.

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