A drone with a loading rack
By designing a liftable drag-reducing cover and a limiting shell structure on the drone, the problem of cargo falling due to high wind resistance on the drone loading rack was solved, thus reducing wind resistance and improving transportation stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUILIN UNIV OF AEROSPACE TECH
- Filing Date
- 2025-09-24
- Publication Date
- 2026-08-04
AI Technical Summary
When transporting goods, the loading racks of existing drones can cause the goods to pile up and form obstructions, resulting in high wind resistance and potentially causing the goods to fall.
A structure with a liftable drag-reducing fairing and a limiting shell was designed. The cargo is secured by tension ropes. The drag-reducing fairing is raised and lowered during flight to reduce wind resistance and direct the wind force onto the fairing rather than the cargo.
It effectively reduces wind resistance during drone flight, prevents cargo from falling, and improves transportation stability.
Smart Images

Figure CN224589351U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a UAV with a loading rack. Background Technology
[0002] Unmanned vehicles, or drones for short, are devices operated using radio remote control equipment and onboard program control devices, or operated autonomously, either completely or intermittently, by an onboard computer. With the advancement of technology, drones have found more and more uses. Some drones are equipped with loading racks to carry goods for transportation. However, existing cargo drones have some problems: after the goods are piled on the loading rack, they form a certain height, which is a large obstruction to the wind. This causes the drone to experience great wind resistance during flight, and the wind resistance acts directly on the goods, blowing them directly and potentially causing them to fall.
[0003] A search revealed a suspended unmanned aerial vehicle (UAV) cargo-carrying device with publication number CN211893661U, comprising a UAV body, flight frames fixedly mounted on both sides of the UAV body, load-bearing arms movably mounted on the outside of the flight frames, a first steel frame fixedly mounted at the bottom of the load-bearing arms, a second steel frame movably mounted at the bottom of the first steel frame, both the first and second steel frames being octagonal and hollow, a cargo platform fixedly mounted on the inner wall of the second steel frame, the top and bottom of the cargo platform and the second steel frame being on the same plane, the load-bearing arms being symmetrically distributed at the octagonal edges of the top of the first steel frame, a first bolt threaded to the top of the load-bearing arm, a connecting rod threaded to the inside of the load-bearing arm, second bolts threaded to both sides of the load-bearing arm, and a groove fixedly opened on the top of the flight frame. This technical solution also suffers from the aforementioned technical problems. Utility Model Content
[0004] The purpose of this invention is to provide a drone with a loading rack to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a drone with a loading rack, including a fuselage and a flight component mounted on the fuselage via an arm. A loading plate is provided below the fuselage, and the top of the loading plate is connected to the arm via a vertical rod. A liftable drag-reducing cover is provided on the side of the loading plate, and the drag-reducing cover is used to reduce the drag of the drone during flight.
[0006] Optionally, the flight component includes a protective shell, a protective cover is installed on the top of the protective shell, a flight motor is installed at the bottom of the protective cover, and flight blades are fixedly connected to the output shaft of the flight motor.
[0007] Optionally, a limiting shell is fixedly connected to the side of the carrying plate, and ribs are fixedly connected to the opening on the carrying plate.
[0008] Optionally, the front and rear sides of the limiting shell are fixedly connected with a binding frame, and one of the two binding frames is bound with several tension ropes.
[0009] Optionally, a connecting strip is fixedly connected to the inner wall of the drag-reducing cover, a telescopic rod is fixedly connected to the bottom of the connecting strip, a connecting block is fixedly connected to the bottom end of the telescopic rod, and the connecting block is fixedly connected to the side of the limiting shell.
[0010] Optionally, the drag-reducing cover has several threaded openings, and the limiting shell is threadedly connected to a threaded rod, which is threadedly connected to the corresponding threaded opening.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes the coordinated components of the fuselage, arms, cargo platform, vertical rod, drag-reducing shield, protective shell, protective cover, flight motor, flight blades, limiting shell, ribs, tension ropes, connecting strips, telescopic rods, connecting blocks, threaded joints, frame, and separators to create a drone with a loading rack. First, cargo is packed in boxes or bags, then placed on the cargo platform within the limiting shell. The cargo is then secured by tension ropes, stabilizing it. The drag-reducing shield then moves upwards, obscuring the cargo platform and the cargo placed on it. The circular side-mounted drag-reducing shield reduces wind resistance compared to a stacked cargo pile, minimizing the impact on the drone's flight. Furthermore, wind blows directly onto the drag-reducing shield, preventing the cargo from falling off. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural schematic diagram of the front view of this utility model; Figure 2 This is a three-dimensional structural diagram of the drag-reducing cover cut open from the front view of this utility model; Figure 3 This is an exploded three-dimensional structural diagram of the protective shell, protective cover, flight motor, and flight blades of this utility model; Figure 4 This is a three-dimensional structural diagram of the carrier plate and ribs of this utility model; Figure 5 This is a three-dimensional structural diagram of the frame and partition strip of this utility model; Figure 6 This is a three-dimensional structural diagram of the threaded rod and rotating rod of this utility model.
[0013] In the diagram: 1. Fuselage, 2. Arm, 3. Cargo plate, 4. Vertical rod, 5. Drag reducer, 6. Protective shell, 7. Protective cover, 8. Flight motor, 9. Flight blade, 10. Limiting shell, 11. Rib, 12. Tensioning rope, 13. Connecting bar, 14. Telescopic rod, 15. Connecting block, 16. Threaded opening, 17. Frame, 18. Separator, 19. Threaded rod, 20. Rotating rod. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] Please see Figure 1-6 A drone with a loading rack includes a conventional drone fuselage 1. Four arms 2 are fixedly connected to the side of the fuselage 1. A protective shell 6 with a top opening is fixedly connected to the end of each arm 2 away from the fuselage 1. A protective cover 7 with a top opening is installed on the top of the protective shell 6. The protective shell 6 and the protective cover 7 form a protective cavity to protect the flight motor 8. The protective cover 7 is connected to the protective shell 6 with conventional screws, which can be self-tapping screws or pre-drilled openings in the protective cover 7 and pre-drilled threaded grooves in the protective shell 6 corresponding to the openings. The flight motor 8 is installed at the bottom of the protective cover 7, so that the flight motor 8 can be removed from the protective shell 6 when the protective cover 7 is removed. The output shaft at the top of the flight motor 8 passes through the opening in the protective cover 7 and is equipped with a flight blade 9. The protective shell 6, the protective cover 7, the flight motor 8, and the flight blade 9 constitute the flight component. The flight component will drive the fuselage 1 to fly through the arms 2. Drones are existing technology. The fuselage 1 integrates other necessary structures besides the flight component, which will not be described in detail in this technical solution.
[0016] A cargo tray 3 with internal ribs 11 is installed below the fuselage 1. The intermittent arrangement of the ribs 11 reduces weight without affecting the placement of items on top of the cargo tray 3. Four vertically extending rods 4 are fixedly connected to the top of the cargo tray 3, and the tops of the four rods 4 are fixedly connected to the four arms 2 respectively. This establishes a fixed connection between the cargo tray 3 and the arms 2. When the fuselage 1 is propelled by the flight components, the cargo tray 3 will also fly. The top of the cargo tray 3 is used to place transported goods. Since goods are prone to shifting when placed on a tray, this technical solution includes a limiting shell 10 fixedly connected to the side of the cargo tray 3 to form a blocking edge. The four side walls of the limiting shell 10 are fixedly connected to the four sides of the cargo tray 3. When goods are placed on top of the cargo tray 3, the edge of the goods can be pressed against the inner wall of the limiting shell 10 according to the principle of stacking and compression, thus forming a blocking edge and improving the stability of the goods. The limiting shell 10 is a rectangular frame structure. The top and bottom are open, and a frame 17 is fixedly connected to both the front and back sides. Several dividing strips 18 are fixedly connected to the inner wall of the frame 17. The frame 17 and the dividing strips 18 constitute a binding frame. There are two binding frames. In one binding frame, tension ropes 12 are bound in each interval of the dividing strips 18 separating the frame 17. The purpose of the dividing strips 18 is to form a blocking component to keep the tension ropes 12 taut and prevent slippage. The top of the loading platform 3 is loaded with goods. After the goods are loaded, the tension rope 12 is used to press down on the top of the goods and then tied to another frame 17. In this way, the front and back do not need to be tied in a corresponding manner. For example, the leftmost tension rope 12 of the front frame 17 can be tied to the rightmost side of the rear frame 17. This staggered tying can effectively prevent the tension rope 12 from slipping on the top of the goods. Each tension rope 12 is tied individually. When goods are stacked, the top is often not on a horizontal line. Tying the tension rope 12 individually can effectively secure the goods.
[0017] To reduce wind resistance, a cylindrical drag-reducing shield 5 is installed on the outer side of the limiting shell 10. Since the drone does not fly in a completely straight line during flight, it also experiences lateral changes in position. The cylindrical drag-reducing shield 5 helps reduce wind resistance. Four protruding connecting blocks 15 are fixedly connected to the side of the limiting shell 10. A telescopic rod 14 extending vertically upwards is fixedly connected to the top of each connecting block 15. Connecting strips 13 are fixedly connected to the inner wall of the drag-reducing shield 5 at positions corresponding vertically to the connecting blocks 15. The top of the telescopic rod 14 is fixedly connected to the bottom of the connecting strip 13. The telescopic rod 14 can extend or retract. Through the connection blocks 15, telescopic rods 14, and connecting strips 13, the drag-reducing shield 5 can move up and down relative to the limiting shell 10. Two threaded openings 16 are provided on the side of the drag-reducing shield 5. A threaded rod 19, which matches the threaded openings 16, is threaded onto the limiting shell 10 and tightened into the connecting rod. The upper threaded opening 16 defines the position of the limiting shell 10. When the limiting shell 10 is in the state shown in the figure, it does not affect the placement of goods on the loading plate 3 inside the limiting shell 10. The end of the threaded rod 19 inside the limiting shell 10 is fixedly connected to a rotating rod 20. The rotating rod 20 is designed to facilitate manual rotation of the threaded rod 19 by the user. Once the goods are loaded, the threaded rod 19 is rotated by the rotating block 20, causing the threaded rod 19 to disengage from the upper threaded opening 16. Then, the drag-reducing cover 5 can be pushed upward to tighten the threaded rod 19 into the lower threaded opening 16. After this assembly, the bottom plane of the drag-reducing cover 5 is at the same level as the bottom plane of the limiting shell 10. The stacking height of the goods is lower than the uppermost edge of the adjusted drag-reducing cover 5. In this way, the drag-reducing cover 5 not only blocks the limiting shell 10 but also blocks the goods, reducing wind resistance and preventing the wind generated during flight from directly acting on the goods. Without wind blowing, the possibility of the goods being blown off by the wind can be effectively avoided, resulting in good transportation stability.
[0018] Finally, in order to make the drone lightweight, the threaded port 16, the cargo plate 3, and the limiting shell 10 can be made of some conventional lightweight materials, such as engineering plastics or magnesium-aluminum alloys. Carbon fiber can also be chosen if cost is not a concern.
[0019] In use, the entire drone is in the state shown in the figure. The user packs the goods into boxes or bags and places them on top of the cargo plate 3 inside the limiting shell 10. Then, the user uses tension ropes 12 to tie the goods to the top. The goods are stacked, and their tops are not on the same horizontal line. Each tension rope 12 can be tied independently to accommodate the compression work of different cargo heights. Then, by rotating the rotating rod 20, the threaded rod 19 will be rotated. The threaded rod 19 will disengage from the upper threaded opening 16. Then, the limiting shell 10 will fall due to gravity. When the bottom of the limiting shell 10 is on the same horizontal plane as the bottom of the drag reduction cover 5, the lower threaded opening 16 will be aligned with the threaded rod 19. Then, by rotating the rotating rod 20, the threaded rod 19 will be screwed into the lower threaded opening 16. In this way, the goods can be transported by flight.
[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An unmanned aerial vehicle with a loading rack, comprising a fuselage (1), and a flight component mounted on the fuselage (1) through a machine arm (2), characterized in that: The fuselage (1) is provided with a cargo plate (3) at the bottom. The top of the cargo plate (3) is connected to the arm (2) by a vertical rod (4). The side of the cargo plate (3) is provided with a liftable drag-reducing cover (5). The drag-reducing cover (5) is used to reduce the drag of the UAV during flight.
2. The drone with a loading rack of claim 1, wherein: The flight component includes a protective shell (6), a protective cover (7) is installed on the top of the protective shell (6), a flight motor (8) is installed at the bottom of the protective cover (7), and a flight blade (9) is fixedly connected to the output shaft of the flight motor (8).
3. The drone with a loading rack of claim 2, wherein: A limiting shell (10) is fixedly connected to the side of the loading plate (3), and a rib (11) is fixedly connected to the opening on the loading plate (3).
4. The UAV with a loading rack according to claim 3, characterized in that: Both the front and rear sides of the limiting shell (10) are fixedly connected to a binding frame, and several tension ropes (12) are tied to one of the two binding frames.
5. The UAV with a loading rack according to claim 4, characterized in that: A connecting strip (13) is fixedly connected to the inner wall of the drag-reducing cover (5). A telescopic rod (14) is fixedly connected to the bottom of the connecting strip (13). A connecting block (15) is fixedly connected to the bottom end of the telescopic rod (14). The connecting block (15) is fixedly connected to the side of the limiting shell (10).
6. The UAV with a loading rack according to claim 5, characterized in that: The drag-reducing cover (5) has several threaded openings (16), and the limiting shell (10) is threaded with a threaded rod (19), which is threaded into the corresponding threaded opening (16).