Freight unmanned aerial vehicle cargo hold folding and unfolding device, unmanned aerial vehicle and cargo hold mounting method

Abstract

The invention provides a cargo hold retracting and releasing device of a freight unmanned aerial vehicle, the unmanned aerial vehicle and a cargo hold mounting method, and relates to the technical field of unmanned aerial vehicles. The lifting assemblies are mounted at the bottom of the mounting platform, the lifting assemblies can move in the first direction relative to the mounting platform, and locking mechanisms are arranged on the lifting assemblies; the driving assembly is mounted on the mounting platform, and the driving assembly is used for driving the lifting assembly to move in the first direction; the at least two first hanging pieces are mounted at the top of the cargo hold of the unmanned aerial vehicle, and the first hanging pieces and the lifting assemblies can be mutually hung when moving relatively in the second direction; a locking part is arranged on the first hanging piece, and when the locking part moves to the corresponding position of the locking mechanism, the locking mechanism locks and fixes the first hanging piece. According to the folding and unfolding device, automatic loading and unloading of the unmanned aerial vehicle cargo hold and the unmanned aerial vehicle body can be achieved.

Description

Technical Field

[0001] The present invention generally relates to the technical field of unmanned aerial vehicles, and in particular to a cargo hold folding and unfolding device of a cargo unmanned aerial vehicle, a unmanned aerial vehicle, and a method for installing the cargo hold. Background Art

[0002] Drone logistics is a new direction for drones in the civilian field and one of the representatives of the development of the logistics industry towards intelligence and automation. Drone transportation is an important part of drone logistics and is the process of transporting goods by controlling drones. At present, drone logistics is mainly based on express delivery and food delivery. Most drones use rotors. The disadvantages of rotor drones are small load capacity and short endurance. For logistics drones with large load capacity and long endurance, taxiing fixed-wing drones are the main ones.

[0003] In order to improve the transportation efficiency of drone logistics, drone logistics has also begun to move towards full automation. Drones realize cargo loading and unloading by cooperating with automatic hangars. Since the cargo hold and the drone body of the rotary-wing drone are an integrated structure, automatic loading and unloading of cargo can be realized by cooperating with the automatic hangar. The cargo hold and the drone body of the fixed-wing drone are split structures. When loading and unloading cargo, it is necessary to manually connect the cargo hold and the drone body. The loading and unloading process is not automated enough and the loading and unloading efficiency is low. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a cargo drone cargo hold folding and unfolding device, a drone and a cargo hold installation method to solve the above-mentioned problems.

[0005] A first aspect of the present invention provides a cargo hold storage and unloading device for a cargo drone, comprising: An installation platform, wherein the installation platform is installed at the bottom of the drone body; At least two lifting assemblies, the lifting assemblies are installed at the bottom of the mounting platform, the lifting assemblies can move along a first direction relative to the mounting platform, the first direction is perpendicular to the mounting platform, and the lifting assemblies are provided with locking mechanisms; A driving assembly, the driving assembly being mounted on the mounting platform and being used for driving the lifting assembly to move along the first direction; At least two first hanging parts, the first hanging parts are installed on the top of the UAV cargo compartment, and the first hanging parts and the lifting assembly can be hung with each other when they move relative to each other along a second direction, and the second direction is perpendicular to the first direction; a locking part is provided on the first hanging part, and when the locking part moves to the corresponding position of the locking mechanism, the locking mechanism locks and fixes the first hanging part.

[0006] According to the technical solution provided by the present invention, the lifting assembly includes: A pair of side plates, on which at least two lifting screws are rotatably mounted, and the lifting screws are connected to the driving assembly through threaded transmission; The second hanging member has two ends connected to a pair of the side plates respectively, the second hanging member is used to hang the first hanging member, and the second hanging member is provided with a first locking hole corresponding to the locking mechanism.

[0007] According to the technical solution provided by the present invention, the first hanging component includes a connecting part and a hanging part, the connecting part is fixedly connected to the top of the drone cargo compartment, the hanging part is arranged on the side of the connecting part away from the drone cargo compartment, an installation space is formed between the connecting part and the hanging part, and an opening for the second hanging component to enter is provided on the side of the installation space.

[0008] According to the technical solution provided by the present invention, the driving component includes: A plurality of lifters, each of which is sleeved on the lifting screw rod and is threadedly connected to the lifting screw rod; A driving device, wherein the output shaft of the driving device is connected to a transmission assembly, and the transmission assembly is connected to the plurality of lifters respectively.

[0009] According to the technical solution provided by the present invention, the locking portion includes a shading member provided on the hanging portion and a second locking hole penetrating the hanging portion; The locking mechanism comprises: A locking device, wherein the locking device is provided with a retractable locking end, and the locking device includes a locked state and an unlocked state. When in the locked state, the locking end passes through the second locking hole and the first locking hole; A photoelectric detection device is electrically connected to the locking device, and when the photoelectric detection device detects the shading member, the locking device is controlled to be placed in the locking state.

[0010] According to the technical solution provided by the present invention, the transmission assembly includes multiple steering gears, multiple couplings and multiple connecting rods, the couplings are connected to the lifters in a transmission manner, the connecting rods are used to connect adjacent couplings in a transmission manner, and the steering gears are used to perform steering transmission on the power output by the drive device. According to the technical solution provided by the present invention, a limiting shell is fixedly installed on the top of the lifter, the limiting shell extends along the second direction, and the limiting shell is sleeved on the outside of the lifting screw and has a clearance fit with the lifting screw.

[0011] A second aspect of the present invention provides a drone, comprising a drone body, a drone cargo hold, and the cargo drone cargo hold retracting and releasing device as described above installed at the bottom of the drone body.

[0012] A third aspect of the present invention provides a method for installing a cargo hold of a cargo drone, which is applied to the drone described above, and the method comprises: Determining whether the drone body has reached the target area; If yes, controlling the lifting assembly to descend along the first direction, so that the first hooking member on the cargo compartment of the drone moving along the second direction is engaged with the lifting assembly; Determining whether the locking portion moves to a position corresponding to the locking mechanism; If yes, controlling the locking device to lock the first hooking member; determining whether the locking device locks the first hooking member; If so, the lifting assembly is controlled to lift along the first direction so that the drone cargo compartment is installed on the drone body.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging an installation platform at the bottom of the drone body, a lifting assembly and a driving assembly are arranged on the installation platform, and a first hanging component is arranged on the top of the drone cargo compartment, so that when the drone body stops at a specified position, the driving component can drive the lifting assembly to descend, and the first hanging component can be hung with the lifting component by moving the drone cargo compartment laterally, and then the drone cargo compartment and the drone body are installed by lifting the lifting component; by arranging a locking mechanism on the lifting component and arranging a locking part on the first hanging component, the locking part gradually approaches the locking device during the lateral movement of the drone cargo compartment, until the locking part moves to the corresponding position of the locking mechanism, and the locking mechanism locks and fixes the first connecting member and the lifting device to prevent the drone cargo compartment from separating from the drone body during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 A schematic diagram of the structure of the cargo hold retracting and unloading device of the cargo drone provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the cargo drone cargo hold retracting device after the lifting assembly is lowered; Figure 3 for Figure 1 The schematic diagram of the structure of the lifting assembly in the cargo hold retracting and releasing device of the cargo UAV shown; Figure 4 for Figure 1 A schematic diagram of the structure of the first attachment in the cargo hold stowage and deployment device of the cargo UAV shown; Figure 5is a schematic diagram of the hanging process between the first hanging member and the second hanging member; Figure 6 is a schematic diagram of the structure after the first hanging member and the second hanging member are hung; Figure 7 for Figure 6 A magnified schematic diagram of the structure at center A; Figure 8 for Figure 7 Schematic diagram of the center locking device after locking.

[0015] Figure numbers: 100, UAV cargo compartment; 200, installation platform; 201, hollow part; 210, lifting assembly; 211, side panel; 212, lifting screw; 213, second hanging member; 214, first locking hole; 220, locking mechanism; 221, locking device; 222, photoelectric detection device; 230, driving assembly; 231, lifter; 232, driving device; 233, steering gear; 234, coupling; 235, connecting rod; 236, limiting shell; 240, first hanging member; 241, connecting part; 242, hanging part; 243, installation space; 244, shading member; 245, second locking hole. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0017] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0018] At present, conventional delivery drones all complete delivery tasks by cooperating with automatic hangars. Usually, automatic hangars are arranged at the delivery station and the receiving place, and the items to be delivered are placed in the automatic hangar. The drone loads the items to be delivered in the automatic hangar of the delivery station, and delivers them point-to-point to the automatic hangar at the receiving place. The automatic loading and unloading of items are realized by the automatic device in the automatic hangar. The automatic device in the automatic hangar can only realize the loading and unloading of items. For drones such as rotary-wing drones, which have an integrated drone body and drone cargo compartment, delivery can be started by relying on automatic devices to realize the loading and unloading of items. However, for drones with separate drone body and drone cargo compartment, only loading and unloading of items can be realized by relying on automatic devices, and the process of installing the drone cargo compartment and the drone body still requires manual operation, with a low degree of automation and low delivery efficiency.

[0019] To this end, the present application provides a cargo hold folding and unfolding device for a cargo drone to solve the above-mentioned problems.

[0020] Example 1 Please refer to Figure 1-Figure 8 This embodiment provides a cargo hold storage device for a cargo drone, comprising: An installation platform 200, wherein the installation platform 200 is installed at the bottom of the drone body; At least two lifting assemblies 210, the lifting assemblies 210 are installed at the bottom of the installation platform 200, the lifting assemblies 210 can move along a first direction relative to the installation platform 200, the first direction is perpendicular to the installation platform 200, and the lifting assemblies 210 are provided with a locking mechanism 220; A driving assembly 230, wherein the driving assembly 230 is installed on the installation platform 200, and the driving assembly 230 is used to drive the lifting assembly 210 to move along the first direction; At least two first hanging components 240, wherein the first hanging components 240 are installed on the top of the UAV cargo compartment 100, and the first hanging components 240 and the lifting assembly 210 can be hung with each other when they move relative to each other along a second direction, and the second direction is perpendicular to the first direction; a locking portion is provided on the first hanging component 240, and when the locking portion moves to the corresponding position of the locking mechanism 220, the locking mechanism 220 locks and fixes the first hanging component 240.

[0021] Specifically, the cargo drone cargo hold retracting device provided in this embodiment is installed at the bottom of the drone body, and is used to automatically install the drone cargo hold 100 on the drone body. In this embodiment, the first direction is the vertical direction, and the second direction is the horizontal direction.

[0022] The cargo hold folding and unfolding device of the cargo drone includes two parts, one installed on the drone body and the other installed on the drone cargo hold 100. The part installed on the drone body includes a mounting platform 200. The mounting platform 200 is mounted on the bottom of the drone body by welding, bolt fixing, etc. In this embodiment, two lifting assemblies 210 are installed on the mounting platform 200. The two lifting assemblies 210 are respectively arranged at the two ends of the bottom of the mounting platform 200. The lifting assemblies 210 and the mounting platform 200 are movably connected. The lifting assemblies 210 can move up and down relative to the mounting platform 200 to realize the folding and unfolding of the drone cargo hold 100; a locking mechanism 220 is installed on the lifting assembly 210, and the locking mechanism 220 is used to lock the drone cargo hold 100 and the drone body after installation; the lifting assembly 210 is driven up and down by a driving assembly 230, and the driving assembly 230 is installed on the side of the mounting platform 200 close to the drone body.

[0023] The part installed in the drone cargo hold 100 includes a first hanging member 240. In this embodiment, two first hanging members 240 are installed on the top of the drone cargo hold 100, and the distance between the two first hanging members 240 is equal to the distance between the two lifting assemblies 210. When the lifting assembly 210 is lowered to a certain height, the lifting assembly 210 and the first hanging member 240 are relatively moved in the horizontal direction to achieve the clamping connection. Under normal circumstances, the position of the drone body is no longer adjusted after entering the automatic hangar and landing, and then the relative movement in the horizontal direction is achieved by moving the drone cargo hold 100. The movement of the drone cargo hold 100 is achieved by the automation device in the automatic hangar. Optionally, the drone cargo hold 100 is moved by a transfer vehicle.

[0024] A locking portion is provided on the first hanging member 240, and the locking portion reaches the corresponding position of the locking mechanism 220 after the first hanging member 240 and the lifting assembly 210 are fully hung. After detecting that the locking portion has arrived, the locking mechanism 220 locks the lifting assembly 210 and the first hanging member 240, and then lifts the UAV cargo compartment 100 through the lifting assembly 210 and the first hanging member 240 to complete the automatic connection between the UAV cargo compartment 100 and the UAV body.

[0025] Furthermore, the lifting assembly 210 includes: A pair of side plates 211, on which at least two lifting screws 212 are rotatably mounted, and the lifting screws 212 are connected to the driving assembly 230 through threaded connection; The second hanging member 213 has two ends connected to a pair of the side plates 211 , and the second hanging member 213 is used to hang the first hanging member 240 . The second hanging member 213 is provided with a first locking hole 214 corresponding to the locking mechanism 220 .

[0026] Specifically, a pair of side panels 211 are arranged along a third direction, the third direction is perpendicular to the first direction and the second direction, a lifting screw 212 is provided at each end of the side panel 211, the lifting screw 121 extends in the vertical direction, one end of the lifting screw 212 is rotatably connected to the side panel 211, and the other end passes through the mounting platform 200 and is transmission-connected to the driving assembly 230, the driving assembly 230 drives the side panel 211 to rise and fall by driving the lifting screw 212 to rotate; the two ends of the second hanging member 213 are respectively fixedly connected to the bottom of a pair of side panels 211, the second hanging member 213 and the first hanging member 240 can be hung with each other, the second hanging member 213 is driven by a pair of side panels 211 to achieve lifting, and the second hanging member 213 is a flat plate parallel to the mounting platform 200.

[0027] Specifically, the first locking hole 214 is used to cooperate with the locking mechanism 220 to lock and fix the first hanging member 240 and the second hanging member 213 when they are completely hung.

[0028] Furthermore, the first hanging component 240 includes a connecting portion 241 and a hanging portion 242, the connecting portion 241 is fixedly connected to the top of the drone cargo compartment 100, the hanging portion 242 is arranged on the side of the connecting portion 241 away from the drone cargo compartment 100, and an installation space 243 is formed between the connecting portion 241 and the hanging portion 242, and the installation space 243 is laterally provided with an opening for the second hanging component 213 to enter.

[0029] Specifically, the first hanging component 240 is a double-layer structure, which includes a connecting portion 241 and a hanging portion 242. The connecting portion 241 and the hanging portion 242 are flat plates parallel to each other and parallel to the mounting platform 200, wherein the connecting portion 241 is fixedly mounted on the top of the drone cargo compartment 100, and the hanging portion 242 is arranged on a side of the connecting portion 241 away from the drone cargo compartment 100, and an installation space 243 is formed between the connecting portion 241 and the hanging portion 242; the installation space 243 has three sides open, and the connecting portion 241 and the hanging portion 242 are connected to each other on the other side of the installation space 243, and the first hanging component 240 and the second hanging component 213 are hung to each other by inserting the second hanging component 213 into the installation space 243; the height of the installation space 243 is adapted to the thickness of the second hanging component 213, so that the first hanging component 240 and the second hanging component 213 are clearance-matched after being hung.

[0030] Furthermore, the driving assembly 230 includes: A plurality of lifters 231, wherein the lifters 231 are sleeved on the lifting screw rod 212, and the lifters 231 are threadedly connected to the lifting screw rod 212; The driving device 232 has an output shaft that is connected to a transmission assembly, and the transmission assembly is connected to the plurality of lifters 231 .

[0031] Specifically, a plurality of lifters 231 are arranged in one-to-one correspondence with a plurality of lifting screws 212. In the present embodiment, eight lifters 231 and eight lifting screws 212 are provided. The lifters 231 are fixedly mounted on the top of the mounting platform 200. The driving part of the lifters 231 is sleeved on the lifting screw 212. The driving part of the lifters 231 is threadedly connected with the lifting screw 212. When the driving part of the lifters 231 rotates, the lifting screw 212 is driven to rotate, and the lifting screw 212 is moved in the vertical direction, thereby realizing the retraction and extension of the second hanging member 213. The driving part of the lifters 231 is driven by the driving device 232. Optionally, the driving device 232 is an actuating motor. The driving device 232 transmits power to the driving parts of the plurality of lifters 231 through a transmission assembly.

[0032] Furthermore, the transmission assembly includes multiple steering gears 233, multiple couplings 234 and multiple connecting rods 235. The couplings 234 are transmission-connected to the lifters 231. The connecting rods 235 are used to transmission-connect adjacent couplings 234. The steering gears 233 are used to steer the power output by the driving device 232.

[0033] Specifically, in this embodiment, three steering gears 233 are provided, and the output shaft of the driving device 232 is connected to a steering gear 233, which redirects power to the other two steering gears 233, and the other two steering gears 233 transmit power to eight lifters 231 respectively, and the other two steering gears 233 transmit power to four lifters 231 located on one side of the installation platform 200 through multiple couplings 234 and multiple connecting rods 235. By providing a transmission assembly, the second hanging member 213 can be ensured to run smoothly when the second hanging member 213 is lifted.

[0034] Furthermore, a limiting shell 236 is fixedly installed on the top of the lifter 231 . The limiting shell 236 extends along the second direction. The limiting shell 236 is sleeved on the outside of the lifting screw rod 212 and is clearance-matched with the lifting screw rod 212 .

[0035] Specifically, the limiting shell 236 is arranged above the driving part of the lifter 231. When the second hanging component 213 is placed in the highest position, the lifting screw rod 212 is placed inside the limiting shell 236. The limiting shell 236 can protect the lifting screw rod 212. When the second hanging component 213 is lifted and adjusted, the lifting screw rod 212 is prevented from shaking under the limiting action of the limiting shell 236, thereby improving the stability of the second hanging component 213 when being adjusted.

[0036] Further, the locking portion includes a light shielding member 244 provided on the hanging portion 242 and a second locking hole 245 penetrating the hanging portion 242; The locking mechanism 220 includes: A locking device 221, wherein the locking device 221 is provided with a retractable locking end, and the locking device 221 includes a locking state and an unlocking state. When in the locking state, the locking end passes through the second locking hole 245 and the first locking hole 214; The photoelectric detection device 222 is electrically connected to the locking device 221 . When the photoelectric detection device 222 detects the light shielding member 244 , the locking device 221 is controlled to be in the locking state.

[0037] Specifically, the light shielding member 244 is a light shielding sheet disposed on the edge of the top surface of the hanging portion 242, and the second locking hole 245 is disposed on one side of the light shielding member 244. In this embodiment, one light shielding member 244 is provided, and two second locking holes 245 are provided on each hanging portion 242, and the two second locking holes 245 are disposed on both sides of the hanging portion 242. In this embodiment, two locking devices 221 are provided corresponding to the second locking holes 245, and one photoelectric detection device 222 is provided corresponding to the light shielding member 244, and the two locking devices 221 are respectively disposed on both sides of the top surface of the second hanging member 213. When the first hanging member 240 moves toward the second hanging member 213, the shading member 244 gradually approaches the photoelectric detection device 222. When the shading member 244 reaches the detection position of the photoelectric detection device 222, the locking end of the locking device 221 just corresponds to the position of the second locking hole 245 and the first locking hole 214. When the shading member 244 blocks the detection position of the photoelectric detection device 222, the photoelectric detection device 222 is triggered and transmits a signal to the locking device 221. At this time, the locking end of the locking device 221 extends out and passes through the second locking hole 245 and the first locking hole 214 in sequence, thereby realizing the locking and fixing between the first hanging member 240 and the second hanging member 213. Optionally, the locking device 221 is a stop motor, and the photoelectric detection device 222 is a photoelectric switch.

[0038] Furthermore, a plurality of hollow portions 201 are formed on the installation platform 200 .

[0039] Specifically, the hollow portion 201 is a hollow hole opened on the mounting platform 200. By providing the hollow portion 201, the weight of the mounting platform 200 is reduced, thereby reducing the burden on the drone body.

[0040] Example 2 This embodiment provides a drone, including a drone body, a drone cargo hold 100, and a cargo drone cargo hold storage and deployment device as described in Embodiment 1 installed at the bottom of the drone body.

[0041] Example 3 This embodiment provides a method for installing a cargo cabin 100 of a cargo drone, which is applied to the drone described in Embodiment 2. The method includes: Determining whether the drone body has reached the target area; If yes, the lifting assembly 210 is controlled to descend along the first direction, so that the first connecting member 240 on the drone cargo cabin 100 moving along the second direction is engaged with the lifting assembly 210; Determine whether the locking portion moves to a position corresponding to the locking mechanism 220; If yes, the locking device 221 is controlled to lock the first hanging member 240; Determining whether the locking device 221 locks the first hanging member 240; If so, the lifting assembly 210 is controlled to be lifted along the first direction so that the drone cargo compartment 100 is installed on the drone body.

[0042] Specifically, the execution subject of the method provided in this embodiment is a control module, which is arranged on the drone body. The control module is electrically connected to the driving device 232, the photoelectric detection device 222 and the locking device 221 respectively. The control module is also connected to the transfer vehicle in the automatic hangar for driving the drone cargo compartment 100 to move and the position detection device signal. The position detection device is used to detect whether the drone body is parked at a specified position in the automatic hangar. The method specifically includes: After the drone body lands in the automatic hangar, the position detection device in the automatic hangar detects whether the drone body has landed in the designated target area. When the drone body lands in the target area, the position detection device detects a landing signal and sends the landing signal to the control module. After receiving the landing signal, the control module controls the start-up of the driving device 232, and then drives the second hanging member 213 to descend through the entire driving assembly 230. At the same time, the control module also controls the transfer vehicle to drive the drone cargo compartment 100 to approach; the photoelectric detection device 222 is turned on during the approach of the drone cargo compartment 100. When When the photoelectric detection device 222 detects the shading member 244, the photoelectric detection device 222 sends a blocking signal to the control module, and then the control module responds to the blocking signal to control the locking device 221 to be placed in a locked state, so as to lock the first hanging member 240 and the second hanging member 213, and at the same time control the transfer vehicle to stop running; after the control module determines that the locking device 221 is placed in a locked state, it controls the driving device 232 to rotate in the opposite direction, and then drives the second hanging member 213 to rise through the entire driving assembly 230, and then drives the UAV cargo compartment 100 to be lifted to complete the installation with the UAV body.

[0043] Furthermore, when it is necessary to unload the drone cargo hold 100, the position of the drone body is also detected by the position detection device in the automatic hangar. When the drone body lands in the target area, the position detection device detects a stop signal and sends the landing signal to the control module. After receiving the landing signal, the control module starts the driving device 232 to lower the drone cargo hold 100, and at the same time controls the transfer vehicle to move toward the drone cargo hold 100. When the transfer vehicle contacts the drone cargo hold 100, the transfer vehicle generates an unloading signal and sends it to the control module. The control module responds to the unloading signal to control the locking device 221 to be in an unlocked state, and then controls the transfer vehicle to take the drone cargo hold 100 away from the drone body.

[0044] The above description is only a preferred embodiment of the present invention and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present invention is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present invention (but not limited to) to form a technical solution.

Claims

1. A cargo hold storage and unloading device for a cargo drone, characterized in that: include: A mounting platform (200), the mounting platform (200) being mounted on the bottom of the drone body; at least two lifting assemblies (210), the lifting assemblies (210) being installed at the bottom of the installation platform (200), the lifting assemblies (210) being movable along a first direction relative to the installation platform (200), the first direction being perpendicular to the installation platform (200), and the lifting assemblies (210) being provided with locking mechanisms (220); a driving assembly (230), the driving assembly (230) being mounted on the mounting platform (200), the driving assembly (230) being used to drive the lifting assembly (210) to move along the first direction; At least two first hanging members (240), wherein the first hanging members (240) are mounted on the top of the drone cargo compartment (100), and the first hanging members (240) and the lifting assembly (210) can be hung with each other when they move relative to each other along a second direction, wherein the second direction is perpendicular to the first direction; a locking portion is provided on the first hanging member (240), and when the locking portion moves to a corresponding position of the locking mechanism (220), the locking mechanism (220) locks and fixes the first hanging member (240).

2. The cargo hold stowage and unloading device of a cargo drone according to claim 1, characterized in that: The lifting assembly (210) comprises: a pair of side plates (211), on which at least two lifting screws (212) are rotatably mounted, and the lifting screws (212) are connected to the driving assembly (230) via threads for transmission; A second hanging member (213), wherein two ends of the second hanging member (213) are respectively connected to a pair of side plates (211), the second hanging member (213) is used to hang the first hanging member (240), and a first locking hole (214) corresponding to the locking mechanism (220) is provided on the second hanging member (213).

3. The cargo hold stowage and unloading device of a cargo drone according to claim 2, characterized in that: The first hanging component (240) comprises a connecting portion (241) and a hanging portion (242), wherein the connecting portion (241) is fixedly connected to the top of the drone cargo compartment (100), and the hanging portion (242) is arranged on a side of the connecting portion (241) away from the drone cargo compartment (100), and an installation space (243) is formed between the connecting portion (241) and the hanging portion (242), and an opening for the second hanging component (213) to enter is arranged on the side of the installation space (243).

4. The cargo hold stowage and unloading device of a cargo drone according to claim 3, characterized in that: The driving assembly (230) comprises: A plurality of lifters (231), wherein the lifters (231) are sleeved on the lifting screw rod (212), and the lifters (231) are threadedly connected to the lifting screw rod (212); A driving device (232), wherein an output shaft of the driving device (232) is drivingly connected to a driving assembly, and the driving assembly is drivingly connected to the plurality of lifters (231) respectively.

5. The cargo hold stowage and unloading device of a cargo drone according to claim 4, characterized in that: The locking portion comprises a light shielding member (244) provided on the hanging portion (242) and a second locking hole (245) penetrating the hanging portion (242); The locking mechanism (220) comprises: A locking device (221), the locking device (221) being provided with a retractable locking end, the locking device (221) comprising a locking state and an unlocking state, and when in the locking state, the locking end passes through the second locking hole (245) and the first locking hole (214); A photoelectric detection device (222), the photoelectric detection device (222) being electrically connected to the locking device (221), and when the photoelectric detection device (222) detects the light shielding member (244), the locking device (221) is controlled to be placed in the locking state.

6. The cargo hold stowage and unloading device of a cargo drone according to claim 5, characterized in that: The transmission assembly comprises a plurality of steering gears (233), a plurality of couplings (234) and a plurality of connecting rods (235); the couplings (234) are transmission-connected to the lifter (231); the connecting rods (235) are used for transmission-connecting adjacent couplings (234); and the steering gears (233) are used for steering the power output by the driving device (232).

7. The cargo hold stowage and unloading device of a cargo drone according to claim 6, characterized in that: A limit shell (236) is fixedly mounted on the top of the lifter (231), the limit shell (236) extending along the second direction, the limit shell (236) being sleeved on the outside of the lifting screw rod (212) and having a clearance fit with the lifting screw rod (212).

8. The cargo hold stowage and unloading device of a cargo drone according to claim 7, characterized in that: The installation platform (200) is provided with a plurality of hollow portions (201).

9. A drone, characterized in that: It comprises a drone body, a drone cargo hold (100), and a cargo drone cargo hold retracting and unfolding device as claimed in any one of claims 1 to 8, which is installed at the bottom of the drone body.

10. A method for installing a cargo hold of a cargo drone, characterized in that: Applied to the drone of claim 9, the method comprises: Determining whether the drone body has reached the target area; If so, controlling the lifting assembly (210) to descend along the first direction, so that the first hanging member (240) on the drone cargo compartment (100) moving along the second direction is engaged with the lifting assembly (210); determining whether the locking portion has moved to a position corresponding to the locking mechanism (220); If yes, controlling the locking device (221) to lock the first hanging member (240); Determining whether the locking device (221) locks the first hanging component (240); If so, the lifting assembly (210) is controlled to lift along the first direction so that the drone cargo compartment (100) is installed on the drone body.

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