CN108891604B - Unmanned aerial vehicle air-drop device - Google Patents
Unmanned aerial vehicle air-drop device Download PDFInfo
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- CN108891604B CN108891604B CN201810704161.7A CN201810704161A CN108891604B CN 108891604 B CN108891604 B CN 108891604B CN 201810704161 A CN201810704161 A CN 201810704161A CN 108891604 B CN108891604 B CN 108891604B
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- 230000033001 locomotion Effects 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/02—Dropping, ejecting, or releasing articles
- B64D1/08—Dropping, ejecting, or releasing articles the articles being load-carrying devices
- B64D1/12—Releasing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/02—Dropping, ejecting, or releasing articles
- B64D1/08—Dropping, ejecting, or releasing articles the articles being load-carrying devices
- B64D1/10—Stowage arrangements for the devices in aircraft
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention relates to an unmanned aerial vehicle air-drop device, and relates to the field of unmanned aerial vehicles. The unmanned aerial vehicle is simple in structure, light in weight, easy to control and strong in reliability. The main technical scheme adopted is as follows: unmanned aerial vehicle air-drop device, it includes moving part, storage tank and sets up the first coupling mechanism on the storage tank, and first coupling mechanism is used for being connected to unmanned aerial vehicle with the storage tank on. The storage box comprises a top plate, a bottom plate and side plates; the side plates comprise a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially arranged along the circumferential direction; the bottom plate comprises a first bottom plate and a second bottom plate, and one end of the first bottom plate is connected with one end of the second bottom plate through a rotating shaft; the movable piece is connected with the rotating shaft and connected with the first side plate and the third side plate through a second connecting mechanism so as to drive the first bottom plate, the second bottom plate, the first side plate and the third side plate to move during movement; the movable piece is used for closing the storage box when moving to the first position; and opening the storage compartment when moved to the second position.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle air-drop device.
Background
Unmanned aerial vehicle can be used for the regional air-drop goods and materials that reach to the inconvenient ground traffic, there is not fashioned unmanned aerial vehicle release mechanism to appear on the market at present, if install the release mechanism that is used for other fields with having now on unmanned aerial vehicle, because the structure of this type of release mechanism is too complicated, whole weight is too big, can increase unmanned aerial vehicle's load, cause unmanned aerial vehicle's payload to receive serious influence, finally lead to unmanned aerial vehicle to carry on the carrying capacity greatly reduced, can't put in more useful goods and materials, therefore, design a simple structure, light in weight, easy control, the unmanned aerial vehicle release mechanism of strong reliability is very necessary.
Therefore, there is a need to provide a new technical solution to overcome the above-mentioned drawbacks.
Disclosure of Invention
In view of this, the present invention provides an unmanned aerial vehicle air-drop device capable of effectively solving the above technical problems.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
the embodiment of the invention provides an unmanned aerial vehicle air-drop device, which comprises a moving piece, a driving mechanism for driving the moving piece to move, a storage box and a first connecting mechanism arranged on the storage box, wherein the first connecting mechanism is used for connecting the storage box to an unmanned aerial vehicle;
the storage box comprises a top plate, a bottom plate and side plates; the side plates comprise a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially arranged along the circumferential direction of the storage box, the first side plate is opposite to the third side plate, and the second side plate is opposite to the fourth side plate; the first side plate and the third side plate are both rotationally connected with the top plate;
the bottom plate comprises a first bottom plate and a second bottom plate, the first bottom plate of the first bottom plate and the second bottom plate of the second bottom plate are close to the first side plate, the second bottom plate of the second bottom plate and the third side plate, and one end of the first bottom plate is connected with one end of the second bottom plate through a rotating shaft;
the movable piece is connected with the rotating shaft and connected with the first side plate and the third side plate through a second connecting mechanism so as to drive the first bottom plate, the second bottom plate, the first side plate and the third side plate to move during movement;
when the movable piece moves to a first position, the other end of the first bottom plate abuts against the first side plate, and the other end of the second bottom plate abuts against the third side plate, so that the storage box is closed; when the movable support moves to the second position, the other end of the first bottom plate and the other end of the second bottom plate are both inclined downwards, and the first side plate and the third side plate are both opened outwards, so that a first material outlet is formed between the first side plate and the first bottom plate, and a second material outlet is formed between the third side plate and the second bottom plate;
the second connecting mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod; one end of the first connecting rod is rotatably connected with the movable member, the other end of the first connecting rod is rotatably connected with one end of the second connecting rod, the other end of the second connecting rod is rotatably connected with one end of the first side plate, and the first side plate is rotatably connected with one end of the top plate through the middle part of the first side plate; one end of the third connecting rod is rotatably connected with the movable member, the other end of the third connecting rod is rotatably connected with one end of the fourth connecting rod, the other end of the fourth connecting rod is rotatably connected with one end of the third side plate, and the third side plate is rotatably connected with the other end of the top plate through the middle part of the third side plate.
By means of the technical scheme, the unmanned aerial vehicle air-drop device at least has the following beneficial effects:
according to the technical scheme provided by the invention, the air-drop device of the unmanned aerial vehicle is simple in structure, convenient to use, light in weight, free of increasing the load of the unmanned aerial vehicle, capable of carrying materials with larger weight, simple to operate, capable of conveniently dropping the materials on the lower part, free of blocking the shell and more convenient and faster in material dropping.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a storage box of an unmanned aerial vehicle aerial delivery device provided by an embodiment of the invention when the storage box is closed;
fig. 2 is a schematic structural diagram of an unmanned aerial vehicle aerial delivery device according to an embodiment of the present invention when a storage box is opened;
fig. 3 is a schematic view of an assembly structure of the rotating shaft, the second side plate, the fourth side plate and the moving member according to an embodiment of the present invention.
Reference numerals: 1. a movable member; 101. a via hole; 2. a drive cylinder; 3. a storage box; 31. a top plate; 32. a base plate; 321. a first base plate; 322. a second base plate; 331. a first side plate; 332. A second side plate; 333. a third side plate; 334. a fourth side plate; 4. a rotating shaft; 5. a fixed mount; 51. a first bracket; 52. a second bracket; 53. a third support; 6. a card slot; 71. a first link; 72. a second link; 73. a third link; 74. a fourth link; 8. a limiting bump; 10. a first material outlet; 20. a second material outlet; 30. an accommodating space; 3311. a first hook; 3331. a second hook; 3321. a first chute; 3341. a second chute; 100. unmanned aerial vehicle air-drop device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides an aerial delivery device 100 for an unmanned aerial vehicle, which includes a movable member 1, a driving mechanism, a storage box 3, and a first connecting mechanism. The driving mechanism is connected with the movable member 1 to drive the movable member 1 to move. The first connecting mechanism is arranged on the storage box 3. First coupling mechanism is used for being connected to storage tank 3 unmanned aerial vehicle on, makes unmanned aerial vehicle can carry 3 flights of storage tank.
The storage box 3 includes a top plate 31, a bottom plate 32, and side plates. The side plates include a first side plate 331, a second side plate 332, a third side plate 333, and a fourth side plate 334 that are arranged in this order in the circumferential direction of storage box 3. The first side plate 331 is opposite to the third side plate 333, and the second side plate 332 is opposite to the fourth side plate 334. Preferably, the storage compartment 3 has a cubic structure.
The first side plate 331 and the third side plate 333 are each rotatably connected to the top plate 31 to open and close with respect to the top plate 31. The bottom plate 32 includes a first bottom plate 321 and a second bottom plate 322, and of the two, the first bottom plate 321 is adjacent to the first side plate 331, and the second bottom plate 322 is adjacent to the third side plate 333. One end of the first base plate 32 is connected to one end of the second base plate 322 via a rotation shaft 4.
The movable member 1 is connected to the rotating shaft 4 and connected to the first side plate 331 and the third side plate 333 through a second connecting mechanism, so as to drive the first bottom plate 321, the second bottom plate 322, the first side plate 331 and the third side plate 333 to move during movement.
When the movable member 1 moves to the first position, the other end of the first bottom plate 321 abuts against the first side plate 331, and the other end of the second bottom plate 322 abuts against the third side plate 333, so as to close the storage box 3 (as shown in fig. 1); and moving to the second position, so that the other end of the first bottom plate 321 and the other end of the second bottom plate 322 are both inclined downwards, and the first side plate 331 and the third side plate 333 are both opened outwards, so as to form a first material outlet 10 between the first side plate 331 and the first bottom plate 321, and a second material outlet 20 between the third side plate 333 and the second bottom plate 322 (as shown in fig. 2).
As shown in fig. 2, when the movable member 1 moves to the second position, the first bottom plate 321 and the second bottom plate 322 are both inclined, so that the materials on the first bottom plate 321 and the second bottom plate 322 can slide along the corresponding bottom plates under the action of gravity and slide out of the corresponding material outlets.
In order to reduce the frictional resistance of the material on the first bottom plate 321 and the second bottom plate 322, preferably, balls may be embedded in the first bottom plate 321 and the second bottom plate 322.
In the technical scheme provided above, the driving mechanism can drive the moving member 1 to move, and the moving member 1 drives the first bottom plate 321, the second bottom plate 322, the first side plate 331 and the third side plate 333 to move so as to open and close the storage box 3.
Further, as shown in fig. 1 and 2, the first connecting mechanism may include a fixing frame 5 and a card slot 6 disposed on the fixing frame 5. The fixing frame 5 is provided on the top plate 31 of the storage box 3. The locking slot 6 is located on the side of the fixing frame 5 facing away from the top plate 31. First connecting mechanism passes through draw-in groove 6 and is connected with the buckle on the unmanned aerial vehicle to be connected to storage tank 3 on the unmanned aerial vehicle. In order to improve the stability of being connected between unmanned aerial vehicle and storage tank 3, preferably, foretell draw-in groove 6 can be for the dovetail etc. has the groove of spacing effect.
As shown in fig. 1 and 2, the aforementioned drive mechanism may include a drive cylinder 2. The driving cylinder 2 is arranged on a fixed frame 5. The driving cylinder 2 is connected to the movable member 1 to drive the movable member 1 to move to the aforementioned first and second positions.
The driving cylinder 2 may be an air cylinder, a hydraulic cylinder, or the like.
The number of the driving cylinders 2 can be single or multiple, and in order to lighten the load of the unmanned aerial vehicle, the number of the driving cylinders 2 is preferably one.
Further, as shown in fig. 1 and 2, the fixing frame 5 may include a first bracket 51, a second bracket 52, and a third bracket 53 connected in sequence. An end of the first bracket 51 facing away from the second bracket 52 is connected to a first connecting portion at the upper end of the top plate 31. The ends of the third brackets 53 facing away from the second brackets 52 are all connected with the second connecting portion at the upper end of the top plate 31. The first bracket 51, the second bracket 52, the third bracket 53, and the top plate 31 form an accommodating space 30 therebetween. The aforementioned driving cylinder 2 is located in the accommodating space 30 and is provided on the second bracket 52. One end of the movable element 1 is connected with a piston rod of the driving cylinder 2, and the other end passes through the top plate 31 and is connected with the rotating shaft 4. When the driving cylinder 2 drives the moving member 1 to move, the moving member 1 drives the first bottom plate 321 and the second bottom plate 322 to move through the rotating shaft 4, so as to open and close the storage box 3.
Further, as shown in fig. 1 and fig. 2, the movable member 1 may be provided with a limit protrusion 8. The limit projection 8 is located in the accommodating space 30. The limit bump 8 is used for abutting against the top plate 31 when the movable element 1 moves to the first position, and abutting against the cylinder body of the driving cylinder 2 when the movable element 1 moves to the second position. In this example, the movable member 1 can only move between the first position and the second position by the limiting bump 8, so that the movable member 1 is prevented from exceeding a preset travel range to cause the storage box 3 to be opened and closed abnormally.
Further, as shown in fig. 3, the movable member 1 may be rod-shaped. One end of the movable element 1 departing from the limit bump 8 is provided with a via hole 101 for the rotating shaft 4 to pass through. The movable member 1 is connected to the rotating shaft 4 through the through hole 101. Specifically, the rotating shaft 4 is rotatably connected to the movable member 1 through the through hole 101, so as to reduce stress concentration at a connection point of the rotating shaft 4 and the movable member 1.
Further, as shown in fig. 1 and 2, the aforementioned second connection mechanism may include a first link 71, a second link 72, a third link 73, and a fourth link 74. One end of the first link 71 is rotatably connected to the movable member 1, and the other end of the first link 71 is rotatably connected to one end of the second link 72. The other end of the second link 72 is rotatably connected to one end of the first side plate 331, and the first side plate 331 is rotatably connected to one end of the top plate 31 through the middle portion thereof. In this example, the movable member 1, the first link 71, the second link 72, and the first side plate 331 form a crank slider mechanism, and the movable member 1 rotates the first side plate 331 to open and close the storage box 3 when linearly moved by the driving cylinder 2.
As shown in fig. 1 and 2, one end of the third link 73 is pivotally connected to the movable element 1, the other end of the third link 73 is pivotally connected to one end of the fourth link 74, and the other end of the fourth link 74 is pivotally connected to one end of the third side plate 333. The third side plate 333 is rotatably connected to the other end of the top plate 31 through the middle portion thereof. Also, in this example, the mover 1, the third link 73, the fourth link 74, and the third side plate 333 form another crank slider mechanism, and the mover 1 rotates the third side plate 333 to open and close the storage box 3 when linearly moved by the driving cylinder 2.
Preferably, as shown in fig. 1 and 2, one end of the first link 71 and one end of the third link 73 are both connected to the limit protrusion 8, so as to be connected to the movable member 1 through the limit protrusion 8.
Further, as shown in fig. 1 and fig. 2, an end of the first side plate 331 close to the first bottom plate 321 has a first hook 3311 for hooking the first bottom plate 321 when the movable element 1 moves to the first position. In this example, by providing the first hook 3311, both the first side plate 331 and the first bottom plate 321 can be closed more tightly and stably.
Similarly, as shown in fig. 1 and fig. 2, an end of the third side plate 333 close to the second base plate 322 has a second hook 3331 to hook the second base plate 322 when the movable element 1 moves to the first position. The third side plate 333 and the second bottom plate 322 can be closed more tightly and stably by the second hook 3331.
Further, as shown in fig. 3, the second side plate 332 may be provided with a first sliding slot 3321. The fourth side plate 334 is provided with a second sliding slot 3341. One end of the rotating shaft 4 is fitted in the first sliding groove 3321, and the other end is fitted in the second sliding groove 3341, so as to move along the first sliding groove 3321 and the second sliding groove 3341 under the driving of the movable member 1. In this example, through the first sliding groove 3321 and the second sliding groove 3341, the movement of the rotating shaft 4 can be limited and guided, and the stability of the movement of the rotating shaft 4 driven by the moving part 1 is improved.
Further, the first bottom plate 321 and the second bottom plate 322 are slidably engaged with the second side plate 332 and the fourth side plate 334, so as to slide relative to the second side plate 332 and the fourth side plate 334 under the driving of the movable element 1. Specifically, the side of the first bottom panel 321 close to the second side panel 332 is slidably engaged with the second side panel 332, the side of the first bottom panel 321 close to the fourth side panel 334 is slidably engaged with the fourth side panel 334, and both the second side panel 332 and the fourth side panel 334 can limit the movement of the first bottom panel 321, so that the first bottom panel 321 opens and closes the storage box 3. Similarly, the side of second bottom panel 322 adjacent second side panel 332 is slidably engaged with second side panel 332, the side of second bottom panel 322 adjacent fourth side panel 334 is slidably engaged with fourth side panel 334, and both second side panel 332 and fourth side panel 334 are capable of limiting the movement of second bottom panel 322, allowing second bottom panel 322 to open and close storage compartment 3.
The following specifically describes the working principle of the above-mentioned unmanned aerial vehicle aerial delivery device 100: at first, open storage tank 3, in the goods and materials dress storage tank 3 that will transport, then closed storage tank 3, through draw-in groove 6 on the mount 5 with 3 joints of storage tank fixed to unmanned aerial vehicle. Unmanned aerial vehicle carries storage tank 3 to fly to required position. Then the driving cylinder 2 is started, the driving cylinder 2 drives the movable member 1 to move from the first position to the second position, the movable member 1 drives the first bottom plate 321 and the second bottom plate 322 to incline downwards through the rotating shaft 4, meanwhile, the movable member 1 drives the first side plate 331 and the third side plate 333 to open outwards through the first connecting rod 71, the second connecting rod 72, the third connecting rod 73 and the fourth connecting rod 74, and materials in the storage box 3 flow out from the first material outlet 10 between the first side plate 331 and the first bottom plate 321 and the second material outlet 20 between the third side plate 333 and the second bottom plate 322 along the first bottom plate 321 and the second bottom plate 322 under the action of self gravity. After the material is put in, the driving cylinder 2 drives the movable member 1 to move from the second position to the first position, so that the first side plate 331 abuts against the first bottom plate 321, and the third side plate 333 abuts against the second bottom plate 322, thereby closing the storage box 3. The drone then returns with an empty box.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (1)
1. The unmanned aerial vehicle air-drop device is characterized by comprising a moving part (1), a driving mechanism for driving the moving part (1) to move, a storage box (3) and a first connecting mechanism arranged on the storage box (3), wherein the first connecting mechanism is used for connecting the storage box (3) to an unmanned aerial vehicle;
the storage box (3) comprises a top plate (31), a bottom plate (32) and side plates; the side plates comprise a first side plate (331), a second side plate (332), a third side plate (333) and a fourth side plate (334) which are sequentially arranged along the circumferential direction of the storage box (3), the first side plate (331) is opposite to the third side plate (333), and the second side plate (332) is opposite to the fourth side plate (334); the first side plate (331) and the third side plate (333) are both in rotating connection with the top plate (31);
the bottom plate (32) comprises a first bottom plate (321) and a second bottom plate (322), the first bottom plate (321) of the two is close to the first side plate (331), the second bottom plate (322) is close to the third side plate (333), and one end of the first bottom plate (321) is connected with one end of the second bottom plate (322) through a rotating shaft (4);
the movable piece (1) is connected with the rotating shaft (4) and is connected with the first side plate (331) and the third side plate (333) through a second connecting mechanism so as to drive the first bottom plate (321), the second bottom plate (322), the first side plate (331) and the third side plate (333) to move during movement;
when the movable piece (1) moves to a first position, the other end of the first bottom plate (321) abuts against the first side plate (331) and the other end of the second bottom plate (322) abuts against the third side plate (333) so as to close the storage box (3); and when the movable plate moves to the second position, the other end of the first bottom plate (321) and the other end of the second bottom plate (322) are both inclined downwards, and the first side plate (331) and the third side plate (333) are both opened outwards, so that a first material outlet (10) is formed between the first side plate (331) and the first bottom plate (321), and a second material outlet (20) is formed between the third side plate (333) and the second bottom plate (322);
the second connecting mechanism comprises a first connecting rod (71), a second connecting rod (72), a third connecting rod (73) and a fourth connecting rod (74); one end of the first connecting rod (71) is rotatably connected with the movable piece (1), the other end of the first connecting rod (71) is rotatably connected with one end of the second connecting rod (72), the other end of the second connecting rod (72) is rotatably connected with one end of the first side plate (331), and the first side plate (331) is rotatably connected with one end of the top plate (31) through the middle part of the first side plate; one end of the third connecting rod (73) is rotatably connected with the movable piece (1), the other end of the third connecting rod (73) is rotatably connected with one end of the fourth connecting rod (74), the other end of the fourth connecting rod (74) is rotatably connected with one end of the third side plate (333), and the third side plate (333) is rotatably connected with the other end of the top plate (31) through the middle part of the third side plate (333).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810704161.7A CN108891604B (en) | 2018-07-01 | 2018-07-01 | Unmanned aerial vehicle air-drop device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810704161.7A CN108891604B (en) | 2018-07-01 | 2018-07-01 | Unmanned aerial vehicle air-drop device |
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| CN108891604A CN108891604A (en) | 2018-11-27 |
| CN108891604B true CN108891604B (en) | 2021-07-16 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111361742B (en) * | 2020-03-30 | 2021-12-03 | 哈尔滨工业大学 | Electromagnetic drive's helicopter cargo hook device |
| CN111634422B (en) * | 2020-06-11 | 2022-04-29 | 浙江南瑞飞翼航空技术有限公司 | Unmanned aerial vehicle carrier |
| CN111847011B (en) * | 2020-08-04 | 2022-09-02 | 广州拓威天海国际物流有限公司 | Port cargo fast loading and unloading system based on Internet of things technology |
| CN112810819B (en) * | 2021-02-09 | 2024-06-18 | 庆安集团有限公司 | Unmanned aerial vehicle air drop air freight device |
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| CN108891604A (en) | 2018-11-27 |
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