Article delivery device

Abstract

The object handover device is used for handover of objects with an unmanned aerial vehicle and comprises a take-off and landing platform and an object placement platform, the take-off and landing platform is used for take-off and landing of the unmanned aerial vehicle and comprises a platform body with an opening and an opening door arranged at the opening, and the opening door is rotatably connected to the platform body; and the article placing platforms are arranged below the lifting platform at intervals and are used for placing articles. Wherein the opening door can abut against supporting legs at the bottom of the unmanned aerial vehicle and is pushed by the supporting legs to rotate from a first position where the opening is covered to a second position where the opening is exposed, so that a goods taking mechanism of the unmanned aerial vehicle can place goods on the goods placing platform or take the goods away from the goods placing platform through the opening. The article delivery device is simple in structure and low in manufacturing cost, large-batch laying is facilitated, and popularization of unmanned aerial vehicle delivery is facilitated.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of article handover, in particular to an article handover device. BACKGROUND

[0002] In an article transportation system using unmanned aerial vehicles (UAVs) for delivery and pickup, an article handover device is used for article handover with the UAV. The UAV can place an article into the article handover device for a user to take the article away; or the UAV can take an article from the article handover device for transportation to a target location. The article handover device in the related art generally has a complex structure and a high manufacturing cost, which is not conducive to mass production and hinders the popularization of the UAV delivery system. SUMMARY

[0003] The purpose of the present disclosure is to provide an article handover device to solve the technical problems in the related art.

[0004] To achieve the above purpose, the present disclosure provides an article handover device for article handover with an unmanned aerial vehicle (UAV), comprising:

[0005] a take-off and landing platform for take-off and landing of the UAV, the take-off and landing platform comprising a platform body having an opening and an opening door arranged at the opening, the opening door being rotatably connected to the platform body;

[0006] an article placement platform arranged below the take-off and landing platform and used for placement of articles;

[0007] wherein the opening door is capable of abutting against a landing leg of the UAV bottom and rotating from a first position covering the opening to a second position exposing the opening under the push of the landing leg, so that a pickup mechanism of the UAV is capable of placing the article onto the article placement platform or taking the article away from the article placement platform through the opening.

[0008] Optionally, the article handover device further comprises a plurality of support structures, the plurality of support structures being arranged on the platform body and surrounding the opening, the support structures being configured to support the UAV when the opening door is in the second position, so that the UAV is parked on the take-off and landing platform.

[0009] Optionally, the support structure comprises a guide portion, the guide portion being recessed downward, a side portion of the guide portion being used to guide a contact portion of the UAV moving towards a bottom portion of the guide portion, and the bottom portion of the guide portion being used to support the contact portion when the opening door is in the second position.

[0010] Optionally, the guide portion is formed in a V shape.

[0011] Optionally, the support structure further comprises two support portions, upper ends of the two support portions are connected with two ends of the guide portion respectively, and lower ends of the two support portions are connected to the platform body.

[0012] Optionally, the opening door is a double-leaf door structure and comprises a first door panel and a second door panel, the first door panel and the second door panel can be respectively flipped downward to form a passage for the article to pass through in the second position.

[0013] Optionally, the width of the passage is greater than or equal to 40 cm.

[0014] Optionally, the article transfer device further comprises an elastic return member, the elastic return member is used to apply an elastic force to the opening door to rotate the opening door from the second position towards the first position.

[0015] Optionally, the opening door is connected with the platform body through a rotating shaft, and the elastic return member is a torsion spring sleeved on the rotating shaft.

[0016] Optionally, the article transfer device further comprises a positioning structure, the positioning structure is arranged on the landing platform, and the positioning structure is used for the unmanned aerial vehicle to identify the landing platform.

[0017] Through the above technical solution, the opening on the landing platform can be opened by the landing leg of the unmanned aerial vehicle in the process of descending, the opened opening can be passed through by the article taking mechanism of the unmanned aerial vehicle, so that the article taking mechanism of the unmanned aerial vehicle can place the article on the article placing platform or take the article away from the article placing platform through the opening. In this way, the opening position for passing through the article can not need to be provided with an extra structure or power source for opening the opening door. The present disclosure utilizes the landing leg at the bottom of the unmanned aerial vehicle as the power for opening the opening door, simplifies the structural assembly of the article transfer device at the position, so that the structure of the article transfer device is simple and the manufacturing cost is low, which is beneficial to large-scale laying and helps to realize the popularization of unmanned aerial vehicle delivery.

[0018] Other features and advantages of the present disclosure will be described in detail in the following detailed description section. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation on the present disclosure. In the drawings:

[0020] Figure 1 is a perspective view of an article transfer device provided by an exemplary embodiment of the present disclosure, in which the opening door is in the first position.

[0021] Figure 2 is a front view schematic diagram of an article transfer device provided by an exemplary embodiment of the present disclosure.

[0022] Figure 3 is a top view schematic diagram of an article transfer device provided by an exemplary embodiment of the present disclosure.

[0023] Figure 4 is a perspective view schematic diagram of an article transfer device provided by an exemplary embodiment of the present disclosure, in which the opening door is in a second position.

[0024] Figure 5 is a perspective view schematic diagram of an article transfer device provided by an exemplary embodiment of the present disclosure, in which a UAV is also shown.

[0025] Figure 6 is a side view schematic diagram of an article transfer device provided by an exemplary embodiment of the present disclosure, in which a UAV is also shown.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 100, article transfer device, 10, take-off and landing platform, 11, platform main body, 12, opening, 13, opening door, 131, first door panel, 132, second door panel, 14, passage, 20, article placement platform, 30, support structure, 31, guide portion, 32, support portion, 40, support base, 200, UAV, 201, support leg, 202, article taking mechanism, 203, wing, 400, article. DETAILED DESCRIPTION

[0028] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0029] In the description of the present disclosure, it should be understood that the orientation or position relationship indicated by the terms “up”, “down” and the like is defined based on the direction of the drawing surface shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, and a particular orientation configuration and operation, and therefore cannot be understood as a limitation on the present disclosure.

[0030] In the present disclosure, it should be noted that the terms “first”, “second” and the like used are for distinguishing one element from another element, and do not have sequential or important meanings. In addition, in the description with reference to the drawings, the same reference signs represent the same elements in different drawings.

[0031] In the description of the present disclosure, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "connect", "connected", "install" should be understood in a broad sense, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0032] In the related art, a parking apron is generally provided on the article transfer device for the parking of the unmanned aerial vehicle, and the unmanned aerial vehicle takes away or puts the article into the article transfer device through the article taking opening on the article transfer device. In order to control the opening and closing of the article taking opening, a driving device of electric or pneumatic type is usually provided at the article taking opening, so as to control the opening and closing of the article taking opening. In addition, the article transfer device can also be provided with an article conveying mechanism to convey the article towards the article taking opening. Thus, the article transfer device in the related art has a complex structure and high manufacturing cost.

[0033] Therefore, the present disclosure provides an article transfer device 100 for transferring articles 400 with an unmanned aerial vehicle 200, which comprises Figures 1 to 6 As shown, the article transfer device 100 comprises a take-off and landing platform 10 and an article placing platform 20, the take-off and landing platform 10 is used for the take-off and landing of the unmanned aerial vehicle 200, the take-off and landing platform 10 comprises a platform body 11 with an opening 12 and an opening door 13 provided at the opening 12, the opening door 13 is rotatably connected to the platform body 11. The article placing platform 20 is spaced apart below the take-off and landing platform 10 and is used for placing the articles 400.

[0034] The opening door 13 can abut against the landing leg 201 of the bottom of the unmanned aerial vehicle 200 and be pushed by the landing leg 201 to rotate from the first position covering the opening 12 to the second position exposing the opening 12, so that the article taking mechanism 202 of the unmanned aerial vehicle 200 can place the articles 400 on the article placing platform 20 through the opening 12 or take the articles 400 away from the article placing platform 20.

[0035] By using the above-mentioned article transfer device 100, in the process of landing of the unmanned aerial vehicle 200 to the landing platform 10, as the height of the unmanned aerial vehicle 200 is constantly lowered, the height of the landing leg 201 on the unmanned aerial vehicle 200 also constantly lowers and contacts the opening door 13, and as the unmanned aerial vehicle 200 and its landing leg 201 continue to lower, the opening door 13 can be turned downward to the second position by the downward pushing force formed by the landing leg 201 on the opening door 13, so that the opening 12 is exposed. At this time, the article taking mechanism 202 of the unmanned aerial vehicle 200 can move through the opening to the article placement platform 20 located below the landing platform 10, so as to take the article on the article placement platform 20, or place the article 400 on the article placement platform 20.

[0036] Through the above technical solution, the opening door 13 on the landing platform 10 can be turned from the first position covering the opening 12 to the second position exposing the opening 12 by the pushing of the landing leg 201 of the unmanned aerial vehicle 200 in the process of landing of the unmanned aerial vehicle 200 to the landing platform 10, without the need to set a separate driving mechanism or power source for opening the opening door 13, so that the article transfer device 100 provided by the present disclosure has a simple structure, which is conducive to reducing the manufacturing cost of the article transfer device 100 and realizing the large-scale laying of the article transfer device 100, thereby helping to realize the popularization of the unmanned aerial vehicle 200 delivery.

[0037] Here, the present disclosure does not limit the specific structure and specific type of the above-mentioned article taking mechanism 202. For example, the article taking mechanism 202 can include a winding reel, a hanging rope, and a hook, the hanging rope is wound on the winding reel, and the winding reel can collect or release the hanging rope when it rotates, the hook is connected to the end of the hanging rope, and is used to hook the article 400. When placing the article 400, the unmanned aerial vehicle 200 is parked to the landing platform 10, the winding reel is rotated to release the hanging rope, so that the hanging rope and the hook are lowered, and then extend to the article placement platform 20 through the opening 12, so as to deliver the article 400 hooked on the hook to the article placement platform 20. At this time, the article 400 stops lowering, the hook continues to lower, so that the hook is released from the article 400, the winding reel is rotated to recover the hanging rope, and the placement of the article 400 is completed. When taking the article 400, the winding reel is rotated to release the hanging rope, the hook is extended to the article placement platform 20 and hooked to the article 400 to be taken, the winding reel is rotated to recover the hanging rope, and the article 400 is lifted through the opening 12 to complete the taking of the article 400.

[0038] In other embodiments, the article taking mechanism 202 can include a telescopic rod and a clamping jaw. The present disclosure does not limit the specific structure of the article taking mechanism 202, as long as it can complete the taking and placing of the article 400.

[0039] In the embodiments of the present disclosure, the take-off and landing platform 10 and the article placing platform 20 can be arranged parallel to the horizontal plane, which is conducive to the stable landing of the unmanned aerial vehicle 200 and the stable placing of the article 400. In addition, the article placing platform 20 and the opening 12 are located at the same vertical position, which is convenient for the article taking mechanism 202 to take the article 400 on the article placing platform 20. In addition, the take-off and landing platform 10 and the article placing platform 20 can be connected to the same support base 40, so that the installation of the take-off and landing platform 10 and the article placing platform 20 is facilitated.

[0040] In order to enable the take-off and landing platform 10 to stably support the unmanned aerial vehicle 200 when the opening door 13 is in the second position, the support structure 30 can be arranged on the platform body 11 and surround the opening 12, and the support structure 30 is configured to support the unmanned aerial vehicle 200 when the opening door 13 is in the second position, so that the unmanned aerial vehicle 200 is parked on the take-off and landing platform 10. Figures 1 to 6 As shown in the figure, the article transfer device 100 can further include a plurality of support structures 30 arranged on the platform body 11 and surrounding the opening 12, and the support structure 30 is configured to support the unmanned aerial vehicle 200 when the opening door 13 is in the second position, so that the unmanned aerial vehicle 200 is parked on the take-off and landing platform 10. That is, when the unmanned aerial vehicle 200 is lowered to be supported by the support structure 30, the opening door 13 is in the second position and cannot continue to rotate.

[0041] The support structure 30 enables the unmanned aerial vehicle 200 to stably land on the take-off and landing platform 10, and can prevent the unmanned aerial vehicle 200 from falling from the opening 12, and can also avoid energy loss caused by the unmanned aerial vehicle 200 hovering.

[0042] Here, the support structure 30 can support any appropriate position of the unmanned aerial vehicle 200, such as the fuselage, the wing 203, the cargo compartment, etc., which is not limited in the present disclosure.

[0043] In addition, the above-mentioned plurality of support structures 30 can correspond to the plurality of contact positions of the unmanned aerial vehicle 200, so that the plurality of contact positions of the unmanned aerial vehicle 200 can be reliably supported. Here, the arrangement of the plurality of support structures 30 around the opening 12 can be that the plurality of support structures 30 are symmetrically arranged along the center line of the opening 12, so that the plurality of contact positions of the unmanned aerial vehicle 200 are uniformly stressed.

[0044] For example, in the embodiment in which the support structure 30 supports the wing 203 of the unmanned aerial vehicle 200, as shown in Figure 5 and Figure 6 The unmanned aerial vehicle 200 has four wings 203, and the support structure 30 is correspondingly provided with four support structures 30, which are respectively arranged at the positions of the four corners of the opening 12, so as to ensure that the position of the unmanned aerial vehicle 200 after landing is located directly above the opening 12, thereby facilitating the article taking mechanism 202 of the unmanned aerial vehicle 200 to pass through the opening 12.

[0045] Optionally, as shown in Figure 2As shown, the support structure 30 can comprise a guiding portion 31, which is concave downward, and the side of the guiding portion 31 is used to guide the contact position of the UAV 200 and the support structure 30 to move towards the bottom of the guiding portion 31, which is used to support the contact position of the UAV 200 and the support structure 30 when the opening door 13 is in the second position. The guiding portion 31 can guide the landing position of the UAV 200 during the descent of the UAV 200, so that the UAV 200 can land in the desired position, i.e., the contact position of the UAV 200 and the support structure 30 can be supported by the bottom of the guiding portion 31. During the sliding of the contact position of the UAV 200 and the support structure 30 to the bottom of the guiding portion 31, the landing leg 201 of the UAV 200 will continue to push the opening door 13 until the contact position is supported by the bottom of the guiding portion 31, and the UAV 200 stops descending, at which time the opening door 13 is in the second position.

[0046] Here, the contact position of the UAV 200 and the support structure 30 can be a position on the fuselage, cargo compartment or wing 203 of the UAV 200 that can contact the support structure 30, which is not limited in the present disclosure.

[0047] For the embodiment in which the support structure 30 supports the wing 203, since the UAV 200 will stop descending when the wing 203 is supported by the bottom of the guiding portion 31, in order to ensure that the opening 12 is opened when the wing 203 is supported by the bottom of the guiding portion 31, the distance between the bottom of the guiding portion 31 and the upper surface of the platform body 11 can be less than the distance between the lower surface of the wing 203 and the bottom end of the landing leg 201, so as to ensure that the landing leg 201 of the UAV has opened the opening 12 when the wing 203 is supported by the bottom of the guiding portion 31.

[0048] Optionally, the distance between the bottom of the guiding portion 31 and the upper surface of the platform body 11 can be 20-25 cm, and the distance between the lower surface of the wing 203 and the bottom end of the landing leg 201 can be 28-33 cm.

[0049] Here, the guiding portion 31 can be configured as an arc shape or a V shape or other suitable structure. In an embodiment provided by the present disclosure, the guiding portion 31 is formed in a V shape. The side of the V-shaped structure has a flat slope that can cause the contact position of the UAV 200 and the support structure 30 (e.g., the wing 203) to slide gently, so that the wing 203 can slide stably along the slope. Moreover, the two sides of the bottom of the V-shaped structure can limit the two sides of the contact position, so as to limit the position of the contact position and ensure the stability of the contact position at the bottom position, preventing the inertia of the sliding of the contact position from causing the UAV 200 to sway.

[0050] The support structure 30 described above can further include two support portions 32, the upper ends of the two support portions 32 are connected with the two ends of the guide portion 31 respectively, and the lower ends of the two support portions 32 are connected to the platform body 11. Thus, the support structure 30 can be stably connected to the landing platform 10. The support portion 32 can facilitate the installation of the support structure 30 on the platform body 11 on the one hand, and can have a spacing between the bottom of the guide portion 31 and the platform body 11 on the other hand.

[0051] The support portion 32 described above can be provided as a support frame or a support block or the like, and the present disclosure does not limit this. As shown in Figure 2 The support portion 32 can be provided as a support rod, which can be connected to the two ends of the guide portion 31. The support portion 32 and the guide portion 31 can be jointly configured as an M-shaped support. In this way, the support structure 30 can not only support the wing 203, but also be lightweight and easy to install. In addition, the M-shaped support occupies less space and can avoid interference with the opening door 13 or the support leg 201 of the unmanned aerial vehicle 200.

[0052] The opening door 13 in the present disclosure can be provided as one or more, and the present disclosure does not limit this. Optionally, as shown in Figure 6 The opening door 13 is provided as a double-door structure and includes a first door plate 131 and a second door plate 132. The first door plate 131 and the second door plate 132 can be respectively flipped downward to form a passage 14 for the goods 400 to pass through in the second position. Since the first door plate 131 and the second door plate 132 can be respectively rotated toward directions away from each other under the action of the support leg 201, the opening 12 can be opened to allow the delivery mechanism 202 to pass through.

[0053] As shown in Figure 1 Optionally, the first door plate 131 and the second door plate 132 can be provided side by side symmetrically about the center of the opening 12. In this way, the force acting on the two opening doors 13 when the support leg 201 of the unmanned aerial vehicle 200 descends can be consistent, so that the resistance when the unmanned aerial vehicle 200 descends is basically consistent, thereby ensuring the stable descent and landing of the unmanned aerial vehicle 200 and preventing the unmanned aerial vehicle 200 from tilting and shaking to cause the goods to fall off.

[0054] In addition, the size of the passage 14 between the first door plate 131 and the second door plate 132 when the opening door 13 is in the second position can be set according to the volume of the goods 400 to be delivered. As long as the passage 14 can allow the goods 400 to be delivered to pass through when the opening door 13 is in the second position, it is acceptable. In the present disclosure, when the opening door 13 is in the second position (as shown in Figure 6 The width of the passage 14 is greater than or equal to 40 cm, so that most of the goods 400 can pass through the passage 14 between the two opening doors 13 smoothly.

[0055] In order to reset the opening door 13 to the first position to restore the shielding of the opening 12 during or after the take-off of the UAV 200, the article transfer device 100 can further comprise an elastic reset member for applying an elastic force to the opening door 13 to rotate the opening door 13 from the second position to the first position. That is, when the opening door 13 is abutted by the landing leg 201, the opening door 13 is subjected to a downward force applied by the landing leg 201, and at the same time, the opening door 13 is subjected to an upward force applied by the elastic reset member. At this time, the force structure of the opening door 13 is that the downward force is greater than the upward force, so that the opening door 13 rotates downward. When the UAV 200 leaves the landing platform 10, the landing leg 201 rises to remove the downward force on the opening door 13. At this time, the force structure of the opening door 13 is that the upward force is greater than the downward force, so that the opening door 13 can be reset from the second position to the first position to close the opening 12.

[0056] Here, the elastic reset member can be a torsional spring, a spring hinge or the like suitable structure, which can reset the opening door 13 from the second position to the first position after the landing leg 201 removes the force applied to the opening door 13.

[0057] For example, in an embodiment, the opening door 13 can be connected to the platform body 11 through a rotating shaft, and the elastic reset member can be a torsional spring sleeved on the rotating shaft. In this way, when the opening door 13 rotates under the force of the landing leg 201, the rotation causes the torsional spring to generate a torsional elastic force opposite to the rotation direction. When the force disappears, the rotating shaft will complete the reset action under the action of the torsional elastic force of the torsional spring, thereby driving the opening door 13 to reset from the second position to the first position.

[0058] In addition, the rotatable connection between the opening door 13 and the platform body 11 can use a rotating shaft connection or a hinge connection or the like suitable structure, which is not limited in the present disclosure.

[0059] Optionally, the article transfer device 100 can further comprise a positioning structure arranged on the landing platform 10, the positioning structure being used for the UAV 200 to identify the landing platform 10. In this way, the positioning structure can guide the UAV 200 to stop at a specified position on the landing platform 10.

[0060] Here, the positioning structure can comprise a positioning code which can be used in cooperation with a camera of the UAV 200; or the positioning structure can be a magnetic attraction member which can be used in cooperation with a magnetic attraction member on the UAV 200; or the positioning structure can be a Wi-Fi access point or a Bluetooth beacon which can be used in cooperation with a wireless signal on the UAV 200. The specific type of the positioning structure is not limited in the present disclosure, as long as the positioning structure can be used for the UAV to identify the position of the landing platform 10.

[0061] For the embodiment in which the positioning structure comprises the positioning code arranged on the landing platform 10, and the support structure 30 with the guide portion 31 is arranged on the platform body 11, when the UAV 200 lands, the UAV 200 can recognize the landing platform 10 by recognizing the positioning code on the landing platform 10, so as to approach the landing platform 10. After the UAV 200 approaches the landing platform 10, the guide portion 31 of the support structure 30 can be in contact with the UAV 200 (for example, in contact with the wing 203 of the UAV 200), guide the position of the UAV 200, realize the physical accurate positioning of the UAV 200, and finally the UAV 200 is supported by the bottom of the guide portion 31 under the guidance of the guide portion 31, and the landing of the UAV 200 is completed.

[0062] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0063] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction, and the present disclosure will not further describe various possible combinations.

[0064] In addition, various different embodiments of the present disclosure can also be combined in any manner, as long as it does not deviate from the idea of the present disclosure, and it should be considered as disclosed by the present disclosure.

Claims

1. A goods transfer device for transferring goods with a drone, characterized in that, The unmanned aerial vehicle delivery and pickup device comprises a take-off and landing platform for take-off and landing of the unmanned aerial vehicle, an article placement platform arranged below the take-off and landing platform and used for placement of articles, and a take-off and landing platform door. The take-off and landing platform door can abut against the landing legs of the unmanned aerial vehicle and be rotated from a first position covering the opening to a second position exposing the opening under the push of the landing legs, so that the unmanned aerial vehicle can place or pick up the articles on the article placement platform through the opening. The unmanned aerial vehicle delivery and pickup device further comprises a plurality of support structures arranged on the platform body and surrounding the opening, and the support structures are configured to support the unmanned aerial vehicle when the take-off and landing platform door is in the second position, so that the unmanned aerial vehicle is parked on the take-off and landing platform. The support structure comprises a guide portion, and the side of the guide portion is used to guide the contact position of the unmanned aerial vehicle and the support structure to move towards the bottom of the guide portion, and the bottom of the guide portion is used to support the contact position when the take-off and landing platform door is in the second position.

2. The article transfer device of claim 1, wherein, The guide portion is formed in a V shape.

3. The article transfer device of claim 2, wherein, The support structure further comprises two support portions, and the upper ends of the two support portions are connected to the two ends of the guide portion, respectively, and the lower ends of the two support portions are connected to the platform body.

4. The article transfer device of claim 3, wherein, The take-off and landing platform door is a double-leaf door structure comprising a first door panel and a second door panel, and the first door panel and the second door panel can be respectively flipped downward to form a passage for the articles to pass through in the second position.

5. The article transfer device of claim 3, wherein, The width of the passage is greater than or equal to 40 cm.

6. The article transfer device of any one of claims 1-5, wherein, The unmanned aerial vehicle delivery and pickup device further comprises an elastic return member for applying an elastic force to the take-off and landing platform door to rotate it from the second position towards the first position.

7. The article transfer device of claim 6, wherein, The take-off and landing platform door is connected to the platform body through a rotating shaft, and the elastic return member is a torsion spring sleeved on the rotating shaft.

8. The article transfer device of any one of claims 1-5, wherein, The unmanned aerial vehicle delivery and pickup device further comprises a positioning structure arranged on the take-off and landing platform, and the positioning structure is used for the unmanned aerial vehicle to identify the take-off and landing platform.

9. The article transfer device of claim 8, wherein, ​ 10. The article transfer device of any one of claims 1-5, wherein, ​

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