Logistics conveying unmanned aerial vehicle

Abstract

The invention relates to the field of unmanned aerial vehicles, in particular to a logistics conveying unmanned aerial vehicle which comprises a body, a putting unit is arranged below the body, and the putting unit comprises a loading box with a downward opening and a putting box with an upward opening; a lifting assembly of the throwing box is arranged in the loading box, the lifting assembly is used for lowering the throwing box to the ground from the interior of the loading box, the lifting assembly comprises first winding wheels rotationally connected to the two sides of the top in the loading box, a steel wire rope is wound around each first winding wheel, and the end of each steel wire rope is fixedly connected to an upper end opening of the throwing box; according to the logistics conveying unmanned aerial vehicle, in terms of safety, when the unmanned aerial vehicle arrives at a delivery position every time, only articles of a pickup person are delivered, other articles are temporarily stored on the body, and the safety of the articles is guaranteed; in the aspect of efficiency, a plurality of articles to be thrown can be temporarily stored on the body, the body flies outside at a time, one-by-one throwing of the articles can be achieved, the efficiency is high, and meanwhile the time requirement for the articles of a pick-up person can be met.

Description

Technical Field

[0001] The present invention relates to the field of unmanned aerial vehicles (UAVs), and in particular to a logistics delivery UAV. Background Art

[0002] Logistics delivery drones are aircraft that use unmanned technology to transport and deliver goods. They feature route planning, autonomous takeoff and landing, and remote monitoring capabilities. Currently, the most common logistics delivery drones are multi-rotor drones, typically using four or six-axis rotors for takeoff and landing, hovering, and steering. Their advantages include vertical takeoff and landing (VTOL) without a runway, precise delivery, mature technology, and low costs. They are primarily used for instant urban delivery, emergency supplies delivery, and point-to-point transportation within warehouses and industrial parks.

[0003] At present, the structural design of multi-rotor logistics delivery drones restricts the safety and efficiency of logistics delivery. Specifically, the structure of loading items is limited to loading one item at a time for the safety of the items, which limits its delivery efficiency. If multiple items are loaded at a time for the sake of delivery efficiency, the items may be lost when they are picked up, and the safety of the items cannot be guaranteed. This puts safety and efficiency in a contradictory state.

[0004] Therefore, a logistics delivery drone is proposed to address the above problems. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: the logistics delivery drone of the present invention includes a main body, a delivery unit is provided below the main body, and the delivery unit includes a loading box with an opening facing downward and a delivery box with an opening facing upward;

[0007] A lifting assembly for the delivery box is provided in the loading box, and the lifting assembly is used to lower the delivery box from the loading box to the ground, and the lifting assembly includes a first winding wheel rotatably connected to both sides of the top of the loading box, each of the first winding wheels is wound with a steel wire rope, and the end of each steel wire rope is fixed to the upper port position of the delivery box;

[0008] A rectangular opening is provided on the upper surface of the loading box, a platform is erected above the rectangular opening, a delivery port is provided on the platform, a turntable is rotatably connected to the bottom of the platform, a window is provided on the turntable, a No. 1 motor for driving the turntable is provided in the middle position of the upper surface of the platform, the No. 1 motor drives the turntable to rotate, the window is opposite to the delivery port, and items are unloaded into the delivery box along the delivery port, the window and the rectangular opening in sequence.

[0009] Preferably, a plurality of circular fences are provided on the circumference of the upper surface of the platform, a plurality of push plates are provided on the inner circumference of each fence, a swivel is fixedly connected to the plurality of push plates in the same fence, a second motor is fixedly connected above each swivel, and an end shell of the second motor is fixedly connected to the end shell of the first motor via a connecting plate;

[0010] A plurality of delivery ports are arranged in a circular array on the platform, and the delivery ports are located one by one below the fence and close to the No. 1 motor.

[0011] Preferably, a pickup port is provided on one side of the delivery box, chutes are provided on the vertical side walls on both sides of the pickup port, a panel is provided in the pickup port, and protrusions are provided on both sides of the bottom of the panel for sliding connection to the chute.

[0012] Preferably, traction ropes are fixedly connected to both sides of the upper edge of the enclosure, and the traction ropes extend upward and are wound around a second winding wheel provided on one side of the loading box.

[0013] Preferably, a conveyor belt is provided on the bottom surface of the delivery box, and both ends of the conveyor belt are connected to the inner wall of the delivery box through rollers, wherein the rollers are provided near the pickup port, and a driving component for driving the rollers to rotate is provided inside the pickup port.

[0014] Preferably, wheels are rotatably connected to both sides of the lower surface of the delivery box, the wheels are arranged close to the pickup port, and the rotating shafts of the wheels are connected to the drive assembly through a gear set.

[0015] Preferably, the tops of both sides of the outer side of the loading box are symmetrically fixed with No. 1 base blocks, each No. 1 base block is rotatably connected to a No. 1 rod, a torsion spring is provided at the rotation connection point between the No. 1 rod and the No. 1 base block, the end of the No. 1 rod is rotatably connected to a No. 2 rod, the No. 2 rod is rotatably connected to the No. 1 rod and a torsion spring is provided at the end of the No. 2 rod, and an arc-shaped No. 1 buckle plate is provided, and the No. 1 buckle plate is buckled on the surface of the wire rope;

[0016] The two sides of the delivery box are symmetrically fixed with No. 2 base blocks, and each No. 2 base block is rotatably connected to a No. 3 rod. A torsion spring is set to rotatably connect the No. 3 rod and the No. 2 base block. The ends of the No. 3 rod are forked, and each forked end has an arc-shaped opening, which is used to push up the blocking rod set in the middle position of the No. 2 rod.

[0017] Preferably, the arc-shaped No. 2 buckle plate on the No. 3 rod is buckled on the surface of the wire rope.

[0018] Preferably, arc-shaped blocks are symmetrically fixed to the bottoms of both sides of the outer side of the loading box, and the arc-shaped blocks are opposite to the No. 2 rod.

[0019] Preferably, the side panels of the loading box and the delivery box are both hollowed out.

[0020] The present invention is beneficial in that:

[0021] 1. In the present invention, the logistics delivery drone is designed. In terms of safety, each time it arrives at the delivery location, it only delivers the recipient's items, and the remaining items are temporarily stored on the main body, ensuring the safety of the items. In terms of efficiency, multiple items to be delivered can be temporarily stored on the main body. The main body can fly out at one time to achieve multiple items. It is not only efficient, but also can meet the recipient's time requirements for items.

[0022] 2. In the present invention, when loading items onto the main body, there is no need to consider the order in which the items are placed. It is only necessary to place the QR code on the item packaging box facing upwards. Subsequently, the camera and the background data processing center will automatically determine the order in which the items are unloaded, thereby reducing the error rate of item placement and ensuring the safety of the recipient's items. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a first-person perspective image of the logistics delivery drone of the present invention;

[0024] Figure 2 This is a second perspective stereoscopic image of the logistics delivery drone of the present invention;

[0025] Figure 3 This is a front view of the logistics delivery drone of the present invention;

[0026] Figure 4 This is a top view of the logistics delivery drone of the present invention;

[0027] Figure 5 A bottom view of the loading box of the present invention;

[0028] Figure 6 Schematic diagram of the structure of the placement area in the present invention;

[0029] Figure 7 This is a schematic diagram of the coordination between the fence and the platform in the present invention;

[0030] Figure 8 A three-dimensional diagram of the coordination between the turntable and the platform in the present invention;

[0031] Figure 9 A three-dimensional diagram of the platform of the present invention;

[0032] Figure 10 A perspective view of the turntable of the present invention;

[0033] Figure 11 is a cross-sectional view of the loading box of the present invention;

[0034] Figure 12 A three-dimensional diagram of the delivery box of the present invention;

[0035] Figure 13 This is a three-dimensional diagram of the coordination between the No. 3 pole and the delivery box in the present invention;

[0036] Figure 14 A perspective view of the enclosure panel of the present invention;

[0037] Figure 15 It is a cross-sectional view of the delivery box in the present invention.

[0038] In the figure: 1. Main body; 2. Loading box; 3. Delivery box; 4. No. 1 reel; 5. Wire rope; 6. Rectangular opening; 7. Platform; 8. Delivery opening; 9. Turntable; 10. Window; 11. No. 1 motor; 12. Fence; 13. Push plate; 14. No. 2 motor; 15. Connecting plate; 16. Pick-up opening; 17. Slide; 18. Enclosure; 19. Protrusion; 20. Traction rope; 21. No. 2 reel; 22. Conveyor belt; 23. Roller; 24. Motor; 25. Wheel body; 26. No. 1 base block; 27. No. 1 rod; 28. No. 2 rod; 29. ​​No. 1 pinch plate; 30. No. 2 base block; 31. No. 3 rod; 32. Arc opening; 33. Stop rod; 34. No. 2 pinch plate; 35. Arc block; 36. No. 1 servo motor; 37. No. 2 servo motor; 38. Placement area DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0040] Reference Figures 1-12 A logistics delivery drone comprises a main body 1, a delivery unit is provided below the main body 1, and the delivery unit comprises a loading box 2 with an opening facing downward and a delivery box 3 with an opening facing upward;

[0041] A lifting assembly for the delivery box 3 is provided in the loading box 2. The lifting assembly is used to lower the delivery box 3 from the loading box 2 to the ground. The lifting assembly includes a first winding wheel 4 rotatably connected to both sides of the top of the loading box 2. A steel wire rope 5 is wound around each first winding wheel 4. The end of each steel wire rope 5 is fixed to the upper port position of the delivery box 3.

[0042] The upper surface of the loading box 2 is provided with a rectangular opening 6, a platform 7 is mounted above the rectangular opening 6, a delivery port 8 is provided on the platform 7, a turntable 9 is rotatably connected below the platform 7, a window 10 is provided on the turntable 9, a No. 1 motor 11 for driving the turntable 9 is provided in the middle position of the upper surface of the platform 7, the No. 1 motor 11 drives the turntable 9 to rotate, the window 10 is opposite to the delivery port 8, and the items are sequentially unloaded into the delivery box 3 along the delivery port 8, the window 10 and the rectangular opening 6;

[0043] In the embodiment of the present invention, the two No. 1 winding wheels 4 on the same side of the loading box 2 are connected together, and a No. 1 servo motor 36 is provided at the connection point to drive the rotation thereof. The No. 1 servo motor 36 is controlled by a PLC to realize the winding or releasing of the wire rope 5 by the No. 1 winding wheel 4;

[0044] In this embodiment, the main body 1 is as follows Figure 1 As shown in , it consists of a four-axis rotor with a guardrail set around the periphery of the four-axis rotor, and the bottom is fixed to the upper surface of the loading box 2 through a support rod; a space is reserved between the loading box 2 and the platform 7 for the assembly of the power supply and the controller;

[0045] Motor 11 is controlled by a PLC and can realize forward or reverse rotation of the turntable 9. The first item to be delivered is placed in the delivery box 3 in advance. Then, the second item to be delivered, the third item to be delivered, the fourth item to be delivered, and so on are placed on the platform 7 in the delivery order. Each item is placed at the delivery port 8. At this time, the delivery port 8 is staggered with the window 10, and the turntable 9 blocks the delivery port 8.

[0046] When the delivery point is reached, the No. 1 reel 4 releases the wire rope 5, which lowers the delivery box 3. The delivery box 3 is located on the ground, and the main body 1 is still suspended in the air. At this time, the person who takes out the items takes out the items from the delivery box 3, and the other items are still temporarily stored on the main body 1, and the items will not be lost. After the delivery is completed, the No. 1 reel 4 reels the wire rope 5, and the wire rope 5 pulls up the delivery box 3. The delivery box 3 rises to the loading box 2, and then the main body 1 flies to the next delivery point. During the flight, the No. 1 motor 11 drives the turntable 9 to rotate, and the window 10 on the turntable 9 is opposite to the delivery port 8 where the second conveyed item is located. The second conveyed item is discharged into the delivery box 3 along the delivery port 8, the window 10 and the rectangular opening 6. When it reaches the next delivery position, the No. 1 reel 4 releases the wire rope 5, and the wire rope 5 lowers the delivery box 3. The delivery box 3 is located on the ground, and the main body 1 is still suspended in the air. At this time, the picker takes the item out of the delivery box 3. The subsequent items on the main body 1 are processed in sequence according to the above operations;

[0047] In terms of safety, this logistics delivery drone only delivers the recipient's items each time it arrives at the delivery location, and the remaining items are temporarily stored on the main body 1, ensuring the safety of the items; in terms of efficiency, multiple items to be delivered can be temporarily stored on the main body 1. The main body 1 can fly out at one time and deliver multiple items one by one, which is not only efficient but also meets the recipient's time requirements for items.

[0048] Reference Figures 4-10A plurality of circular fences 12 are provided on the circumference of the upper surface of the platform 7. A plurality of push plates 13 are provided on the inner circumference of each fence 12. A swivel is fixedly connected to the plurality of push plates 13 in the same fence 12. A second motor 14 is fixedly connected to the top of each swivel. The end shell of the second motor 14 is fixedly connected to the end shell of the first motor 11 through a connecting plate 15. The second motor 14 is controlled by a PLC, and a camera is provided under each connecting plate 15. The camera is opposite to the delivery port 8 on the platform 7. The camera is used to capture the QR code on the item and identify and determine whether the item belongs to the person picking up the item at the delivery point.

[0049] The platform 7 is provided with a plurality of delivery ports 8 arranged in a circular array. The delivery ports 8 are located below the fence 12 and are close to the first motor 11.

[0050] The two adjacent push plates 13 and the fence 12 form a placement area 38, each placement area 38 can hold the items of the same recipient, and some large items can be placed separately; the fence 12 is set in conjunction with the push plate 13, and can accommodate more items at one time, that is, to store the items of multiple recipients; when the main body 1 flies to a certain delivery point, the push plate 13 is driven to rotate by the second motor 14 in advance, and the push plate 13 pushes the item to move and moves to the bottom of the camera. The camera shoots the QR code and transmits it to the background data processing center to identify and determine whether the item is the item of the recipient at the delivery point. If the item is the item of the recipient at the delivery point, the push plate 13 stops rotating, and the first motor 11 drives the turntable 9 to rotate. The window 10 on the turntable 9 coincides with the delivery port 8. The items are discharged into the delivery box 3 along the delivery port 8, the window 10 and the rectangular opening 6 in turn. At this time, the screening and unloading of the items are completed, and the delivery box 3 is subsequently lowered, and the recipient can take the items in the delivery box 3.

[0051] When loading items onto the main body 1, there is no need to consider the order in which the items are placed. Just put the QR code on the item packaging box facing up. Subsequently, the camera and the background data processing center will determine the order in which the items are unloaded, reducing the error rate of item placement and being responsible for the safety of the recipient's items.

[0052] Reference Figure 12-15 A pickup opening 16 is provided on one side of the delivery box 3, and chutes 17 are provided on the vertical side walls on both sides of the pickup opening 16. A panel 18 is provided inside the pickup opening 16, and protrusions 19 are provided on both sides of the bottom of the panel 18 for sliding connection to the chute 17;

[0053] Some items are relatively heavy, and it is inconvenient for the recipient to take the items out of the delivery box 3. For this reason, a pickup port 16 is set on one side of the delivery box 3. Specifically, after the delivery box 3 is placed on the ground, the recipient lifts the enclosure 18, the pickup port 16 opens, and then pushes the items in the delivery box 3 out instead of taking the items out of the delivery box 3, which facilitates the pickup operation.

[0054] Reference Figure 5 ,as well as Figure 11-Figure 15 , a traction rope 20 is fixed on both sides of the upper edge of the enclosure 18, and the traction rope 20 extends upward and is wound around a second reel 21 provided on one side of the loading box 2;

[0055] The No. 2 reel 21 is driven by the No. 2 servo motor 37, which is controlled by the PLC and can realize the reeling or releasing of the traction rope 20 by the No. 2 reel 21; when the delivery box 3 is about to fall to the ground, the No. 2 servo motor 37 drives the No. 2 reel 21 to reel in the traction rope 20, and the traction rope 20 pulls the enclosure 18 upward. When the delivery box 3 is completely seated on the ground, the pickup port 16 is opened. At this time, the person picking up the item does not need to lift the enclosure 18 and can directly push the item out of the delivery box 3.

[0056] Reference Figure 12-15 A conveyor belt 22 is provided on the bottom surface of the delivery box 3, and both ends of the conveyor belt 22 are connected to the inner wall of the delivery box 3 through rollers 23, wherein the roller 23 is provided near the pickup port 16, and a driving assembly for driving the roller 23 to rotate is provided inside the pickup port 16; the driving assembly includes a motor 24, a pulley and a belt, a pulley is fixedly connected to the roller 23 on the same axis, and a pulley on the output end of the motor 24 is connected to the pulley on the roller 23 by belt transmission. The motor 24 is controlled by a PLC to drive the rotation of the conveyor belt 22;

[0057] When the logistics delivery drone arrives at the drop-off point, if the recipient fails to pick up the item within the specified time, the logistics delivery drone can contact the recipient by phone or text message through the background data processing center to inform the recipient that the item needs to be picked up in time. If the recipient fails to arrive in time, the drone can place the item at the drop-off point with the recipient's consent. Specifically, the item is unloaded from the placement area 38 into the drop-off box 3, and the item falls onto the conveyor belt 22. Then the drive assembly drives the conveyor belt 22 to drive, and the conveyor belt 22 pushes the item out of the drop-off box 3 and onto the ground, completing the item delivery.

[0058] If the recipient does not agree to the item being placed on the ground, the item can be first transferred to the nearest logistics point to avoid affecting the subsequent delivery of items.

[0059] Reference Figure 12-15, the lower surface of the delivery box 3 is rotatably connected to the wheels 25 on both sides, the wheels 25 are arranged near the pickup port 16, and the rotating shaft of the wheels 25 is connected to the drive assembly through a gear set;

[0060] The gear set includes a driving tooth fixed to the output end of the motor 24, and a driven tooth fixed to the rotating shaft of the wheel body 25. The driven tooth meshes with the driving tooth. In the process of the conveyor belt 22 pushing the item out of the delivery box 3, one edge of the item first contacts the ground. When continuing to push, due to the friction between the item and the ground, the conveyor belt 22 and the item will slip, resulting in the item being unable to be smoothly pushed out of the delivery box 3. For this purpose, a wheel body 25 is provided. While the drive assembly drives the conveyor belt 22 to push the item, the drive assembly drives the wheel body 25 to rotate through the gear set, and the wheel body 25 drives the entire delivery box 3 to retreat. At this time, the item is pushed out of the delivery box 3 while the delivery box 3 retreats, so that the item can be smoothly pushed out of the delivery box 3.

[0061] Reference Figure 1-Figure 3 ,as well as Figure 11-Figure 15 , the top of both sides of the loading box 2 are symmetrically fixed to the No. 1 base block 26, each No. 1 base block 26 is rotatably connected to a No. 1 rod 27, a torsion spring is set at the rotation connection point between the No. 1 rod 27 and the No. 1 base block 26, the end of the No. 1 rod 27 is rotatably connected to the No. 2 rod 28, and the No. 2 rod 28 is rotatably connected to the No. 1 rod 27 and a torsion spring is set. The end of the No. 2 rod 28 is provided with an arc-shaped No. 1 buckle plate 29, and the No. 1 buckle plate 29 is buckled on the surface of the wire rope 5;

[0062] The two sides of the delivery box 3 are symmetrically fixed with No. 2 base blocks 30, and each No. 2 base block 30 is rotatably connected to a No. 3 rod 31. The No. 3 rod 31 is rotatably connected to the No. 2 base block 30 by a torsion spring. The ends of the No. 3 rod 31 are forked, and each forked end has an arc-shaped opening 32. The arc-shaped opening 32 is used to push up a blocking rod 33 provided in the middle position of the No. 2 rod 28;

[0063] After the items in the delivery box 3 are taken out, the main body 1 tilts and flies upward, and at the same time, the No. 1 reel-up wheel 4 reels the wire rope 5. At the beginning of reeling, since the wire rope 5 is long and the delivery box 3 itself has inertia, it fails to fly upward synchronously with the main body 1, causing the delivery box 3 to swing, and the swing will destroy the stability of the main body 1 during flight, which is also a problem that causes the main body 1 to swing. In severe cases, it will cause the main body 1 to collide with surrounding objects. For this purpose, a No. 1 rod 27, a No. 2 rod 28 and a No. 3 rod 31 are provided to constrain the swing amplitude of the delivery box 3. Specifically, the No. 1 rod 27 and the No. 2 rod 28 cooperate. After the delivery box 3 is lowered, the No. 1 buckle plate 29 at the end of the No. 2 rod 28 will be buckled on the wire rope 5. At this time, the No. 1 buckle plate 29 and the No. 3 rod 31 are The steel wire rope 5 between the No. 1 winding wheel 4 and the main body 1 is a whole, and the effective cycloid length of the steel wire rope 5 is reduced, which also reduces the swing amplitude of the delivery box 3. When the delivery box 3 moves up, the two forks on the No. 3 rod 31 will press against the blocking rod 33, and the blocking rod 33 is squeezed in the flared arc-shaped opening 32, and the blocking rod 33 pushes up the No. 2 rod 28. Since the No. 1 rod 27 is connected to the No. 1 base through a torsion spring rotation, the No. 1 rod 27 will deflect upward, and the No. 1 rod 27 and the No. 2 rod 28 are connected together through a torsion spring rotation, and the No. 2 rod extends upward. At the same time, the upper No. 3 rod 31 is connected to the No. 2 base block 30 through a torsion spring rotation, and the No. 3 rod 31 will gradually deflect toward the outside of the delivery box 3. At the same time, the blocking rod 33 is also placed in the arc-shaped opening 32, and the delivery box 3 rises to the loading box 2.

[0064] Reference Figure 1-Figure 3 ,as well as Figure 11-Figure 15 The arc-shaped second gusset 34 on the third rod 31 is buckled on the surface of the wire rope 5;

[0065] When the delivery box 3 is lowered to the ground, the delivery box 3 is moved out of the loading box 2. During the moving out process, the arc-shaped opening 32 is on the blocking rod 33. Under the torsion force of the torsion spring, the first rod 27 and the second rod 28 are deflected again to the position as shown in FIG. Figure 3 As shown, the third rod 31 is also deflected to Figure 3 The state shown in the figure is shown in the figure, and a No. 2 buckle plate 34 is provided on the No. 3 rod 31, and the No. 2 buckle plate 34 is buckled on the surface of the wire rope 5. At this time, the effective cycloid length on the wire rope 5 is reduced again, which can further reduce the swing amplitude of the delivery box 3 and further stabilize the subsequent flight state of the main body 1.

[0066] Reference Figure 11 , the bottom of both sides of the loading box 2 are symmetrically fixed with arc blocks 35, and the arc blocks 35 are opposite to the second rod 28;

[0067] The arc block 35 is used to guide the movement of the first clasp 29 on the end of the second rod 28 to prevent the first clasp 29 from being stuck at the bottom edge of the loading box 2 during the upward movement.

[0068] Reference Figure 1-Figure 3 The side panels of the loading box 2 and the delivery box 3 are both hollowed out; the loading box 2 and the delivery box 3 adopt a lightweight design and reduce their own weight, thereby extending the single flight time of the main body 1, being able to deliver more items and improving efficiency.

[0069] Working principle: When the delivery point is reached, the No. 1 reel 4 releases the wire rope 5, which lowers the delivery box 3. The delivery box 3 is located on the ground, and the main body 1 is still suspended in the air. At this time, the person who takes out the items takes out the items from the delivery box 3, and the other items are still temporarily stored on the main body 1, and the items will not be lost. After the delivery is completed, the No. 1 reel 4 reels the wire rope 5, and the wire rope 5 pulls up the delivery box 3. The delivery box 3 rises to the loading box 2, and then the main body 1 flies to the next delivery point. During the flight, The No. 1 motor 11 drives the turntable 9 to rotate, and the window 10 on the turntable 9 is opposite to the delivery port 8 where the second conveyed item is located. The second conveyed item is discharged into the delivery box 3 along the delivery port 8, the window 10 and the rectangular opening 6. When it reaches the next delivery position, the No. 1 reel 4 releases the wire rope 5, and the wire rope 5 lowers the delivery box 3. The delivery box 3 is located on the ground, and the main body 1 is still suspended in the air. At this time, the person picking up the item takes out the item from the delivery box 3, and the subsequent items on the main body 1 are executed in sequence according to the above operations.

[0070] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A logistics delivery drone, comprising a main body, characterized in that: A delivery unit is provided below the main body, and the delivery unit comprises a loading box with an opening facing downward and a delivery box with an opening facing upward; A lifting assembly for the delivery box is provided in the loading box, and the lifting assembly is used to lower the delivery box from the loading box to the ground, and the lifting assembly includes a first winding wheel rotatably connected to both sides of the top of the loading box, each of the first winding wheels is wound with a steel wire rope, and the end of each steel wire rope is fixed to the upper port position of the delivery box; A rectangular opening is provided on the upper surface of the loading box, a platform is erected above the rectangular opening, a delivery port is provided on the platform, a turntable is rotatably connected to the bottom of the platform, a window is provided on the turntable, a No. 1 motor for driving the turntable is provided in the middle position of the upper surface of the platform, the No. 1 motor drives the turntable to rotate, the window is opposite to the delivery port, and items are unloaded into the delivery box along the delivery port, the window and the rectangular opening in sequence.

2. A logistics delivery drone according to claim 1, characterized in that: The upper surface of the platform is provided with a plurality of circular fences, and the inner circumference of each fence is provided with a plurality of push plates. A swivel is fixedly connected to the plurality of push plates in the same fence. A second motor is fixedly connected to the top of each swivel. The end shell of the second motor is fixedly connected to the end shell of the first motor through a connecting plate. A plurality of delivery ports are arranged in a circular array on the platform, and the delivery ports are located one by one below the fence and close to the No. 1 motor.

3. The logistics delivery drone according to claim 1, characterized in that: A pickup port is provided on one side of the delivery box, and slide grooves are provided on the vertical side walls on both sides of the pickup port. A panel is provided in the pickup port, and protrusions that are slidably connected to the slide grooves are provided on both sides of the bottom of the panel.

4. A logistics delivery drone according to claim 3, characterized in that: A traction rope is fixedly connected to both sides of the upper edge of the enclosure, and the traction rope extends upward and is wound around a second winding wheel arranged on one side of the loading box.

5. The logistics delivery drone according to claim 3, characterized in that: A conveyor belt is provided on the bottom surface of the delivery box, and both ends of the conveyor belt are connected to the inner wall of the delivery box through rollers, wherein the rollers are provided near the pickup port, and a driving component for driving the rollers to rotate is provided inside the pickup port.

6. The logistics delivery drone according to claim 5, characterized in that: Wheel bodies are rotatably connected to both sides of the lower surface of the delivery box. The wheel bodies are arranged close to the pickup port, and the rotating shafts of the wheel bodies are connected to the driving assembly through a gear set.

7. The logistics delivery drone according to claim 4, characterized in that: The tops of both sides of the loading box are symmetrically fixed with No. 1 base blocks, each No. 1 base block is rotatably connected to a No. 1 rod, a torsion spring is provided at the rotation connection point between the No. 1 rod and the No. 1 base block, the end of the No. 1 rod is rotatably connected to a No. 2 rod, the No. 2 rod is rotatably connected to the No. 1 rod and a torsion spring is provided at the end of the No. 2 rod, and an arc-shaped No. 1 buckle plate is buckled on the surface of the wire rope; The two sides of the delivery box are symmetrically fixed with No. 2 base blocks, and each No. 2 base block is rotatably connected to a No. 3 rod. A torsion spring is set to rotatably connect the No. 3 rod and the No. 2 base block. The ends of the No. 3 rod are forked, and each forked end has an arc-shaped opening, which is used to push up the blocking rod set in the middle position of the No. 2 rod.

8. The logistics delivery drone according to claim 7, characterized in that: The arc-shaped No. 2 buckle plate on the No. 3 rod is buckled on the surface of the steel wire rope.

9. The logistics delivery drone according to claim 7, characterized in that: Arc blocks are symmetrically fixed to the bottoms of both sides of the loading box, and the arc blocks are opposite to the second rod.

10. The logistics delivery drone according to claim 1, characterized in that: The side panels of the loading box and the delivery box are both hollowed out.

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