Logistics delivery drone

Abstract

The application relates to the field of unmanned planes, in particular to a logistics conveying unmanned plane, which comprises a body, a delivery unit arranged below the body, the delivery unit comprising 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 arranged in the loading box, the lifting assembly is used for lowering the delivery box from the loading box to the ground, and the lifting assembly comprises a No. 1 winding wheel rotationally connected to the top of the loading box on both sides, a steel wire rope is wound around each No. 1 winding wheel, and the end of each steel wire rope is fixedly connected to the upper end of the delivery box. The logistics conveying unmanned plane is safe, can only deliver the goods of the pickup person when reaching the delivery position point each time, and can temporarily store the remaining goods on the body, so that the safety of the goods is guaranteed; the efficiency is high, a plurality of goods to be delivered can be temporarily stored on the body, the body can fly out once, and the plurality of goods can be delivered one by one, so that the time requirement of the pickup person for the goods can be met.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of unmanned aerial vehicles, in particular to a logistics delivery unmanned aerial vehicle. BACKGROUND

[0002] The logistics delivery unmanned aerial vehicle is a kind of aircraft that realizes goods transportation and delivery through unmanned technology, and has functions such as path planning, autonomous take-off and landing, and remote monitoring. The commonly seen logistics delivery unmanned aerial vehicle is a multi-rotor unmanned aerial vehicle, which usually adopts four / six-axis rotors to realize take-off, hovering and steering. Its advantages are vertical take-off without runway, precise delivery, mature technology and low cost, and it is mainly applied to city instant delivery, emergency material transportation and warehouse / park point-to-point transportation.

[0003] At present, for the multi-rotor logistics delivery unmanned aerial vehicle, due to its structural design, the safety and efficiency of logistics delivery are restricted. Specifically, the structure of the loaded goods is limited to one piece of goods per time for safety, which limits the delivery efficiency. If multiple pieces of goods are loaded at one time for efficiency, the goods are likely to be lost during pickup, which cannot guarantee the safety of the goods, and the safety and efficiency are in a contradictory state.

[0004] Therefore, a logistics delivery unmanned aerial vehicle is proposed to solve the above problems. SUMMARY

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem in the background art.

[0006] The technical scheme adopted by the present application to solve its technical problems is: the logistics delivery unmanned aerial vehicle comprises a body, a delivery unit is arranged below the body, the delivery unit comprises a loading box with an opening downward and a delivery box with an opening upward;

[0007] A lifting assembly for the delivery box is arranged in the loading box, the lifting assembly is used to lower the delivery box from the loading box to the ground, and the lifting assembly comprises a first winding wheel rotatably connected to the top of the loading box on both sides, a steel wire rope is wound on each first winding wheel, and the end of each steel wire rope is fixed to the upper end of the delivery box.

[0008] A rectangular opening is formed on the upper surface of the loading box, a platform is arranged above the rectangular opening, a delivery opening is formed on the platform, a turntable is rotatably connected below the platform, a window is formed on the turntable, a first motor for driving the rotation of the turntable is arranged at the middle position of the upper surface of the platform, the first motor drives the rotation of the turntable, the window is opposite to the delivery opening, and the goods are sequentially discharged into the delivery box along the delivery opening, the window and the rectangular opening.

[0009] Preferably, a plurality of fences in circular shape are arranged circumferentially on the upper surface of the platform, a plurality of push plates are arranged circumferentially in each fence, the plurality of push plates in the same fence are fixedly connected together as a rotating body, a second motor is fixedly connected above each rotating body, and the end shell of the second motor is fixedly connected to the end shell of the first motor through a connecting plate.

[0010] A plurality of drop openings are arranged circumferentially on the platform, and each drop opening is located below a fence and close to the first motor.

[0011] Preferably, a pickup opening is arranged on one side of the drop box, a sliding groove is arranged on the vertical side wall on both sides of the pickup opening, a surrounding plate is arranged in the pickup opening, and a protrusion that is slidably connected to the sliding groove is arranged on the bottom of the surrounding plate.

[0012] Preferably, a traction rope is fixedly connected to the two sides of the upper edge of the surrounding plate, the traction rope extends upward and is wound around a second winding wheel arranged on one side in the loading box.

[0013] Preferably, a conveying belt is arranged on the inner bottom surface of the drop box, both ends of the conveying belt are connected to the side wall in the drop box through rollers, the rollers are arranged close to the pickup opening, and a driving assembly that drives the rotation of the rollers is arranged on the inner side of the pickup opening.

[0014] Preferably, a wheel body is rotatably connected to the two sides of the lower surface of the drop box, the wheel body is arranged close to the pickup opening, and the rotation shaft of the wheel body is connected to the driving assembly through a gear set.

[0015] Preferably, a first base block is fixedly connected to the top of each of the two sides of the loading box, a first rod is rotatably connected to each first base block, a torsional spring is arranged at the rotation connection point between the first rod and the first base block, a second rod is rotatably connected to the end of the first rod, a torsional spring is arranged at the rotation connection point between the second rod and the first rod, an arc-shaped first clamping plate is arranged at the end of the second rod, and the first clamping plate is clamped on the surface of the steel wire rope.

[0016] Preferably, a second base block is fixedly connected to each of the two sides of the drop box, a third rod is rotatably connected to each second base block, a torsional spring is arranged at the rotation connection point between the third rod and the second base block, the end of the third rod is bifurcated, an arc-shaped opening is arranged at each bifurcated end, and the arc-shaped opening is used to abut against a stop rod arranged at the middle of the second rod.

[0017] Preferably, an arc-shaped second clamping plate is arranged on the third rod, and the second clamping plate is clamped on the surface of the steel wire rope.

[0018] Preferably, an arc-shaped block is fixedly connected to the bottom of each of the two sides of the loading box, and the arc-shaped block is opposite to the second rod.

[0019] Preferably, the side plates of the loading box and the drop box are arranged in a hollow shape.

[0020] The present application has the following advantages:

[0021] 1. The logistics conveying unmanned aerial vehicle designed in the application, in terms of safety, only the article of the article taking person is delivered each time the delivery location point is reached, and the remaining articles are temporarily stored on the body, ensuring the safety of the articles; in terms of efficiency, a plurality of articles to be delivered can be temporarily stored on the body, and the body can be flown out once, realizing the delivery of the plurality of articles one by one, which not only is high in efficiency, but also meets the time demand of the article taking person for the articles.

[0022] 2. In the application, when the articles are loaded onto the body, the article placing order does not need to be considered, only the two-dimensional code on the article packaging box is upward, and then the article unloading order is determined by the camera and the background data processing center, reducing the article delivery error rate, which is also responsible for the safety of the article taking person. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a first perspective view of the logistics conveying unmanned aerial vehicle in the application;

[0024] Figure 2 It is a second perspective view of the logistics conveying unmanned aerial vehicle in the application;

[0025] Figure 3 It is a front view of the logistics conveying unmanned aerial vehicle in the application;

[0026] Figure 4 It is a top view of the logistics conveying unmanned aerial vehicle in the application;

[0027] Figure 5 It is a bottom view of the loading box in the application;

[0028] Figure 6 It is a structural schematic view of the placing area in the application;

[0029] Figure 7 It is a cooperation schematic view of the fence and the platform in the application;

[0030] Figure 8 It is a cooperation perspective view of the turntable and the platform in the application;

[0031] Figure 9 It is a perspective view of the platform in the application;

[0032] Figure 10 It is a perspective view of the turntable in the application;

[0033] Figure 11 It is a sectional view of the loading box in the application;

[0034] Figure 12 It is a perspective view of the delivery box in the application;

[0035] Figure 13 It is a cooperation perspective view of the No. 3 rod and the delivery box in the application;

[0036] Figure 14 It is a perspective view of the fence in the application;

[0037] Figure 15 It is a sectional view of the delivery box in the application.

[0038] In the figure: 1, body; 2, loading box; 3, delivery box; 4, No. 1 winding wheel; 5, steel wire rope; 6, rectangular opening; 7, platform; 8, delivery opening; 9, rotating disc; 10, window; 11, No. 1 motor; 12, fence; 13, push plate; 14, No. 2 motor; 15, connecting plate; 16, taking opening; 17, chute; 18, fence; 19, protrusion; 20, traction rope; 21, No. 2 winding wheel; 22, conveying belt; 23, roller body; 24, motor; 25, wheel body; 26, No. 1 base block; 27, No. 1 rod; 28, No. 2 rod; 29, No. 1 buckle plate; 30, No. 2 base block; 31, No. 3 rod; 32, arc-shaped opening; 33, blocking rod; 34, No. 2 buckle plate; 35, arc-shaped 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, purposes and effects realized by the application easy to understand, the application is further described below in combination with specific embodiments.

[0040] Reference Figures 1-12 A logistics conveying unmanned aerial vehicle, comprising a body 1, a delivery unit is arranged below the body 1, 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 of the delivery box 3 is arranged in the loading box 2, the lifting assembly is used for lowering the delivery box 3 from the loading box 2 to the ground, and the lifting assembly comprises No. 1 winding wheels 4 rotatably connected to both sides of the top of the loading box 2, a steel wire rope 5 is wound on each No. 1 winding wheel 4, and the end of each steel wire rope 5 is fixedly connected to the upper end position of the delivery box 3;

[0042] A rectangular opening 6 is formed in the upper surface of the loading box 2, a platform 7 is arranged above the rectangular opening 6, a delivery opening 8 is formed in the platform 7, a rotating disc 9 is rotatably connected below the platform 7, a window 10 is formed in the rotating disc 9, a No. 1 motor 11 for driving the rotating disc 9 to rotate is arranged at the middle position of the upper surface of the platform 7, the No. 1 motor 11 drives the rotating disc 9 to rotate, the window 10 is opposite to the delivery opening 8, and articles are sequentially discharged into the delivery box 3 along the delivery opening 8, the window 10 and the rectangular opening 6;

[0043] In the embodiment of the present application, two first winding wheels 4 on the same side in the loading box 2 are connected together, and the connection point is provided with a first servo motor 36 for driving the rotation of the first winding wheel 4, the first servo motor 36 is controlled by the PLC, and the first winding wheel 4 can realize the winding or releasing of the steel wire rope 5;

[0044] In the embodiment, the body 1 is composed of a four-rotor, the four-rotor is provided with a guardrail on the periphery, and the bottom is fixedly connected 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; Figure 1

[0045] The first motor 11 is controlled by the PLC, and the rotation direction of the rotating disc 9 can be reversed; the first delivery object is placed in the delivery box 3 in advance, and then the second delivery object, the third delivery object, the fourth delivery object, and the like are placed on the platform 7 according to the delivery sequence, and each object is placed at the delivery port 8 position, at this time, the delivery port 8 and the window 10 are staggered, and the rotating disc 9 blocks the delivery port 8;

[0046] When reaching the delivery position point, the first winding wheel 4 releases the steel wire rope 5, the steel wire rope 5 lowers the delivery box 3, the delivery box 3 is placed on the ground, and the body 1 is still suspended in the air, at this time, the pickup personnel takes out the object from the delivery box 3, and the remaining objects are still temporarily stored on the body 1, and the loss of the objects is not caused, after the pickup is completed, the first winding wheel 4 winds the steel wire rope 5, the steel wire rope 5 pulls up the delivery box 3, the delivery box 3 rises into the loading box 2, and then the body 1 flies to the next delivery point, in the flying process, the first motor 11 drives the rotating disc 9 to rotate, the window 10 on the rotating disc 9 is opposite to the delivery port 8 where the second delivery object is located, the second delivery object is discharged to the delivery box 3 along the delivery port 8, the window 10 and the rectangular port 6, when reaching the next delivery position point, the first winding wheel 4 releases the steel wire rope 5, the steel wire rope 5 lowers the delivery box 3, the delivery box 3 is placed on the ground, and the body 1 is still suspended in the air, at this time, the pickup personnel takes out the object from the delivery box 3, and the subsequent objects on the body 1 are sequentially executed according to the above operation;

[0047] The logistics delivery unmanned aerial vehicle is safe, only the object of the pickup personnel is delivered each time the delivery position point is reached, and the remaining objects are temporarily stored on the body 1, the safety of the objects is ensured, the efficiency is high, and the time demand of the pickup personnel for the objects can be met.

[0048] Refer to Figures 4-10 ​The platform 7 is provided with a plurality of fences 12 in a circular shape in the circumferential direction of the upper surface of the platform 7, a plurality of push plates 13 are provided in the circumferential direction of each fence 12, a plurality of push plates 13 in the same fence 12 are fixedly connected to each other, each push plate 13 is provided with a rotating body, a second motor 14 is fixedly connected to the upper surface of each rotating body, 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, a camera is arranged below each connecting plate 15, the camera is opposite to the delivery port 8 on the platform 7, the camera is used for shooting a two-dimensional code on an object and identifying and judging whether the object is the object of a person who takes the object at the delivery point;

[0049] A plurality of delivery ports 8 are arranged in the circumferential direction of the platform 7, and each delivery port 8 is located below a fence 12 and is close to the first motor 11;

[0050] Two adjacent push plates 13 and the fence 12 form a placing area 38, each placing area 38 can place the object of a person who takes the object, and some large objects can be placed separately; the fence 12 is matched with the push plate 13, and more objects can be loaded at one time, that is, the objects of a plurality of persons who take the object can be stored; when the body 1 flies to a certain delivery point, the push plate 13 is driven to rotate by the second motor 14 in advance, the push plate 13 pushes the object to move, and the object moves to the lower surface of the camera, the camera shoots a two-dimensional code and transmits the two-dimensional code to a background data processing center, and whether the object is the object of a person who takes the object at the delivery point is identified and judged; if the object is the object of a person who takes the object at the delivery point, the push plate 13 stops rotating, the rotating disc 9 is driven to rotate by the first motor 11, the window 10 on the rotating disc 9 is coincided with the delivery port 8, and the object is unloaded to the delivery box 3 along the delivery port 8, the window 10 and the rectangular port 6 in sequence, and at this time, the screening and unloading of the object are completed, and the subsequent delivery box 3 is unloaded, and the person who takes the object can take the object in the delivery box 3.

[0051] When the object is loaded to the body 1, the order of placing the object does not need to be considered, and only the two-dimensional code on the object package box needs to be upward, and the subsequent camera and background data processing center can automatically judge the unloading order of the object, reduce the error rate of object delivery, and also take responsibility for the safety of the object of the person who takes the object.

[0052] Referring to Figures 12-15 The delivery box 3 is provided with a taking port 16 on one side, a sliding groove 17 is arranged on the vertical side wall on both sides in the taking port 16, a fence 18 is arranged in the taking port 16, and a protrusion 19 is arranged in the sliding groove 17 through sliding connection on both sides of the bottom of the fence 18.

[0053] Some items are more cumbersome, in the process of taking the items out of the delivery box 3, it is inconvenient to take the items away, for this, the delivery box 3 side is provided with a taking port 16, specifically, after the delivery box 3 is placed on the ground, the taking person lifts the coaming 18, the taking port 16 is opened, then the items in the delivery box 3 are pushed out, rather than being lifted out of the delivery box 3, which facilitates the taking operation.

[0054] Referring to Figure 5 , and Figures 11-15 , the two sides of the upper edge of the coaming 18 are fixedly connected with the traction rope 20, the traction rope 20 extends upward and is wound on the second winding wheel 21 arranged on one side in the loading box 2;

[0055] The second winding wheel 21 is driven by the second servo motor 37, the second servo motor 37 is controlled by the PLC, and the winding or release of the traction rope 20 by the second winding wheel 21 can be realized; when the delivery box 3 is about to fall on the ground, the second servo motor 37 drives the second winding wheel 21 to wind the traction rope 20, the traction rope 20 pulls the coaming 18 upward, when the delivery box 3 is completely placed on the ground, the taking port 16 is opened, at this time, the taking person does not need to lift the coaming 18, and can directly push the items out of the delivery box 3.

[0056] Referring to Figures 12-15 , the bottom surface of the delivery box 3 is provided with a conveying belt 22, both ends of the conveying belt 22 are connected to the inner side wall of the delivery box 3 through the roller body 23, wherein the roller body 23 is arranged close to the position of the taking port 16, and the inner side of the taking port 16 is provided with a driving assembly for driving the rotation of the roller body 23; the driving assembly comprises a motor 24, a belt pulley and a belt, the belt pulley is coaxially fixed on the roller body 23, the belt pulley on the output end of the motor 24 is drivingly connected with the belt pulley on the roller body 23, the motor 24 is controlled by the PLC, and drives the rotation of the conveying belt 22;

[0057] When the logistics conveying unmanned aerial vehicle arrives at the delivery point, the taking person fails to take the items away within the specified time, the logistics conveying unmanned aerial vehicle can connect with the taking person through the background data processing center in the form of telephone or short message, and inform the taking person that the items need to be taken away in time, if the taking person fails to arrive in time, the items can be placed on the delivery point with the consent of the taking person, specifically, the items are discharged from the placement area 38 to the delivery box 3, the items fall on the conveying belt 22, then the driving assembly drives the conveying belt 22 to drive, the conveying belt 22 pushes the items out of the delivery box 3 and onto the ground, completing the delivery of the items;

[0058] If the taking person does not agree to place the items on the ground, the items can be first transferred to the nearest logistics point to avoid affecting the subsequent delivery of the items.

[0059] Referring to Figures 12-15The wheel body 25 is arranged close to the taking-out port 16, and the rotating shaft of the wheel body 25 is connected to the driving assembly through a gear set.

[0060] The gear set comprises a driving gear fixed to the output end of the motor 24 and a driven gear fixed to the rotating shaft of the wheel body 25. The driven gear is engaged with the driving gear. During the process that the conveying belt 22 pushes the articles out of the delivery box 3, the edge of the article first contacts the ground, and then the article is continuously pushed. Due to the friction between the article and the ground, the conveying belt 22 and the article may slip, which causes the article to fail to be smoothly pushed out of the delivery box 3. Therefore, the wheel body 25 is arranged. The driving assembly drives the wheel body 25 to rotate through the gear set while driving the conveying belt 22 to push the articles. The wheel body 25 drives the whole delivery box 3 to move backward. At this time, the articles are pushed out of the delivery box 3, and the delivery box 3 moves backward, so that the articles can be completely pushed out of the delivery box 3.

[0061] Referring to Figures 1-3 , and Figures 11-15 The outer two sides of the loading box 2 are symmetrically fixed with a first base block 26. The first base block 26 is rotatably connected with a first rod 27. The first rod 27 is provided with a torsional spring at the rotating connection point with the first base block 26. The end of the first rod 27 is rotatably connected with a second rod 28. The second rod 28 is provided with a torsional spring at the rotating connection point with the first rod 27. The end of the second rod 28 is provided with an arc-shaped first buckle plate 29 which is buckled on the surface of the steel wire rope 5.

[0062] The outer two sides of the delivery box 3 are symmetrically fixed with a second base block 30. The second base block 30 is rotatably connected with a third rod 31. The third rod 31 is provided with a torsional spring at the rotating connection point with the second base block 30. The end of the third rod 31 is bifurcated, and each bifurcated end is provided with an arc-shaped port 32 which is used for abutting against the stop rod 33 arranged at the middle position of the second rod 28.

[0063] After the articles in the delivery box 3 are taken away, the body 1 flies upwardly obliquely, while the first winding wheel 4 winds the steel wire rope 5. At the beginning of winding, the steel wire rope 5 is long, and the delivery box 3 cannot fly upwardly obliquely synchronously with the body 1 due to inertia, so that the delivery box 3 swings, which destroys the stability of the body 1 in flight and causes the body 1 to swing, and even causes the body 1 to collide with surrounding objects. Therefore, the first rod 27, the second rod 28 and the third rod 31 are arranged to constrain the swing amplitude of the delivery box 3. Specifically, the first rod 27 and the second rod 28 cooperate. After the delivery box 3 is lowered, the first clamping plate 29 at the end of the second rod 28 is clamped on the steel wire rope 5. At this time, the steel wire rope 5 between the first clamping plate 29 and the first winding wheel 4 is a whole with the body 1, and the effective swing length of the steel wire rope 5 is reduced, so that the swing amplitude of the delivery box 3 is reduced. When the delivery box 3 moves upwardly, the two bifurcations on the third rod 31 push against the stop rod 33, and the stop rod 33 is pressed in the arc-shaped port 32. The stop rod 33 pushes the second rod 28 upwardly. Since the first rod 27 is connected to the first base through a torsional spring, the first rod 27 deflects upwardly. The second rod 28 is connected to the first rod 27 through a torsional spring, and deflects upwardly obliquely. The third rod 31 is connected to the second base 30 through a torsional spring, and deflects outwardly of the delivery box 3. Meanwhile, the stop rod 33 is arranged in the arc-shaped port 32, and the delivery box 3 is lifted into the loading box 2.

[0064] Referring to Figures 1-3 , and Figures 11-15 , the second clamping plate 34 on the third rod 31 is arranged to clamp on the surface of the steel 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 port 32 is arranged on the stop rod 33, and the torsional force of the torsional spring causes the first rod 27 and the second rod 28 to deflect again to the state as shown in Figure 3 , and the third rod 31 deflects to the state as shown in Figure 3 . The second clamping plate 34 on the third rod 31 is arranged to clamp on the surface of the steel wire rope 5. At this time, the effective swing length of the steel wire rope 5 is reduced again, so that the swing amplitude of the delivery box 3 is further reduced, and the subsequent flight state of the body 1 is further stabilized.

[0066] Referring to Figure 11 , the arc-shaped blocks 35 are symmetrically and fixedly arranged on the two sides of the bottom of the loading box 2, and the arc-shaped blocks 35 are opposite to the second rod 28.

[0067] The arc-shaped blocks 35 are arranged to guide the movement of the first clamping plate 29 at the end of the second rod 28, so that the first clamping plate 29 is not clamped on the edge of the bottom of the loading box 2 during the upward movement of the first clamping plate 29.

[0068] Referring to Figures 1-3 The side plates of the loading box 2 and the delivery box 3 are both provided in a hollow shape; the loading box 2 and the delivery box 3 are designed to be light in weight, thereby reducing the self-weight, prolonging the single-out flight time of the body 1, enabling more articles to be delivered, and improving the efficiency.

[0069] Working principle: when reaching the delivery position point, the first winding wheel 4 releases the steel wire rope 5, the steel wire rope 5 lowers the delivery box 3, the delivery box 3 is seated on the ground, the body 1 is still suspended in the air, at this time, the article taking personnel takes out the articles from the delivery box 3, while the remaining articles are still temporarily stored on the body 1, and no loss of articles is caused, after the article taking is completed, the first winding wheel 4 winds the steel wire rope 5, the steel wire rope 5 pulls up the delivery box 3, the delivery box 3 is lifted into the loading box 2, then the body 1 flies to the next delivery point, in the flight process, the first motor 11 drives the rotating disc 9 to rotate, the window 10 on the rotating disc 9 is opposite to the delivery port 8 where the second conveyed article is located, the second conveyed article is discharged to the delivery box 3 along the delivery port 8, the window 10 and the rectangular port 6, when reaching the next delivery position point, the first winding wheel 4 releases the steel wire rope 5, the steel wire rope 5 lowers the delivery box 3, the delivery box 3 is seated on the ground, the body 1 is still suspended in the air, at this time, the article taking personnel takes out the articles from the delivery box 3, the articles on the subsequent body 1 are sequentially executed according to the above operation.

[0070] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, the above embodiments and descriptions in the specification are only to illustrate the principle of the present application, various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A logistics delivery drone, comprising a main body, characterized in that: The body is provided with a delivery unit below it, which includes a loading box with the opening facing downwards and a delivery box with the opening facing upwards. The loading box is equipped with a lifting assembly for the delivery box. The lifting assembly is used to lower the delivery box from the loading box to the ground. The lifting assembly includes a No. 1 winding wheel that is rotatably connected to both sides of the top inside the loading box. Each No. 1 winding wheel is wound with a steel wire rope, and the end of each steel wire rope is fixed to the upper port 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 feeding port is provided on the platform. A turntable is rotatably connected below the platform. A window is provided on the turntable. A No. 1 motor is provided in the middle of the upper surface of the platform to drive the turntable to rotate. The No. 1 motor drives the turntable to rotate. The window is opposite to the feeding port. The items are fed into the loading box in sequence along the feeding port, the window and the rectangular opening. The top of both sides of the loading box are symmetrically fixed with a No. 1 base block. A No. 1 rod is rotatably connected to each No. 1 base block. A torsion spring is set at the rotatable connection point between the No. 1 rod and the No. 1 base block. A No. 2 rod is rotatably connected to the end of the No. 1 rod. A torsion spring is set at the rotatable connection between the No. 2 rod and the No. 1 rod. An arc-shaped No. 1 buckle plate is set at the end of the No. 2 rod. The No. 1 buckle plate is fastened to the surface of the steel wire rope. The two sides of the delivery box are symmetrically fixed with a No. 2 base block. A No. 3 rod is rotatably connected to each No. 2 base block. A torsion spring is set to rotatably connect the No. 3 rod to the No. 2 base block. The end of the No. 3 rod is forked, and each fork end is opened with an arc-shaped opening. The arc-shaped opening is used to push the stop bar set in the middle position of the No. 2 rod. The No. 2 buckle plate, which is arc-shaped on the No. 3 pole, is fastened to the surface of the wire rope. The loading box has symmetrically fixed arc-shaped blocks on both sides of its bottom, with the arc-shaped blocks facing the No. 2 rod.

2. The logistics delivery drone according to claim 1, characterized in that: The platform has multiple circular fences on its upper surface. Each fence has multiple push plates on its inner circumference. Multiple push plates in the same fence are fixed to a rotating body. A second motor is fixed above each rotating body. The end shell of the second motor is fixed to the end shell of the first motor through a connecting plate. The platform has multiple delivery ports arranged in a circular array. Each delivery port is located below the fence and close to motor number one.

3. The logistics delivery drone according to claim 1, characterized in that: The delivery box has a retrieval opening on one side, and sliding grooves are provided on the vertical side walls on both sides inside the retrieval opening. A surrounding plate is provided inside the retrieval opening, and protrusions in the sliding groove are provided on both sides of the bottom of the surrounding plate.

4. The logistics delivery drone according to claim 3, characterized in that: The upper edge of the enclosure is fixed with traction ropes on both sides, and the traction ropes extend upward and are wound around the No. 2 winding wheel set on one side of the loading box.

5. A logistics delivery drone according to claim 3, characterized in that: The bottom surface of the delivery box is provided with a conveyor belt, and both ends of the conveyor belt are connected to the inner side wall of the delivery box by rollers. The rollers are located near the dispensing port, and a drive assembly for driving the rollers to rotate is located inside the dispensing port.

6. A logistics delivery drone according to claim 5, characterized in that: Wheels are rotatably connected to both sides of the lower surface of the delivery box. The wheels are positioned close to the dispensing port, and the shafts of the wheels are connected to the drive assembly via a gear set.

7. A logistics delivery drone according to claim 1, characterized in that: The side panels of both the loading box and the delivery box are designed with a perforated shape.

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