A multi-rotor logistics drone

Abstract

The utility model provides a kind of multi-rotor logistics unmanned aerial vehicle, unmanned aerial vehicle has main carbon plate, the four edges of main carbon plate are evenly provided with cross bar, the end portion of the outer stretch of cross bar is evenly provided with brushless motor and propeller, brushless motor and propeller are installed on upside in one end portion, brushless motor and propeller are installed on downside in its adjacent one end portion, sequentially interval setting;Throwing mechanism is arranged below main carbon plate, throwing mechanism is used to fix / put meal box.The utility model logistics unmanned aerial vehicle has certain load, can be hung certain weight distribution meal box or goods by carrying mechanism and realizes autonomous planning air route flight, give consideration to quick, high endurance, small, safe function, improve the efficiency of meal delivery / delivery, prevent due to artificial distribution time too long make food taste and temperature be influenced, or also can reduce the distance of expressman delivery, simultaneously can alleviate road traffic congestion problem to some extent.

Description

Technical Field

[0001] This utility model belongs to the field of unmanned aerial vehicle (UAV) technology, specifically relating to a logistics transportation UAV capable of fast flight, large payload and stable carrying. The logistics referred to in this utility model is the delivery of goods, and the food delivery refers to the delivery of food or beverages. Background Technology

[0002] With the vigorous development of the low-altitude economy, low-altitude small unmanned aerial vehicles are playing an increasingly important role in industries, agriculture, and services. Currently, food delivery services are mainly delivered by humans and some by unmanned vehicles, which leads to road traffic congestion. In addition, the time cost of human delivery means that some delivery drivers may neglect their own safety and traffic regulations due to time constraints. Therefore, using drones to deliver food in low-altitude areas can solve this problem well, saving labor costs, avoiding unexpected situations during delivery, and greatly shortening food delivery time. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a multi-rotor logistics drone.

[0004] This utility model is achieved through the following technical solution: A multi-rotor logistics drone, the drone having a main carbon plate 1, with crossbars 3 on all four sides of the main carbon plate 1, and a brushless motor 7 and a propeller 8 on the end of the extended portion of each crossbar 3. The brushless motor 7 and the propeller 8 are mounted on the upper side at one end, and on the lower side at the adjacent end, and are arranged alternately. A throwing mechanism 14 is provided below the main carbon plate 1, which is used to fix / throw the lunch box 15.

[0005] Further optimization plan, An upper carbon plate 2 is provided above the main carbon plate 1, and a parachute 13 is provided on the upper carbon plate 2.

[0006] Further optimization plan, An upper anti-angle washer 22 is provided between the brushless motor 7 and the end, and the thickness of one side of the upper anti-angle washer 22 is greater than the thickness of the other side. When installed on the upper side, the upper anti-angle pad 22 causes the brushless motor 7 and the propeller 8 to tilt inward; When installed on the lower side, the upper anti-angle pad 22 causes the brushless motor 7 and the propeller 8 to tilt outward.

[0007] Further optimization plan, The included angle between the upper and lower surfaces of the upper anti-angle pad 22 is set to 4-8 degrees, and the included angle between the brushless motor 7 and the propeller 8 and the vertical direction is 4-8 degrees.

[0008] Further optimization plan, A data transmission device 9, an RTK antenna 10, a GPS antenna 11, an airborne computer, a flight control system, and a battery 12 are installed in the space formed by the main carbon plate 1 and the upper carbon plate 2. The brushless motor 7 is connected to the onboard computer, flight control system and battery 12 via wire 6, which passes through the inside of the crossbar 3 and connects to the brushless motor 7.

[0009] Further optimization plan, Support legs 4 are provided on the crossbars 3 at the four corners of the main carbon plate 1 for support, and buffer pads 5 are provided at the lower end of the support legs 4.

[0010] Further optimization plan, Both the crossbar 3 and the support leg 4 are made of carbon fiber.

[0011] Further optimization plan, The throwing mechanism 14 has a throwing servo 17 fixedly connected to the lower side of the main carbon plate 1. A crank 18 is provided on the output shaft of the throwing servo 17. The output shaft is connected to the middle of the crank 18. The two ends of the crank 18 are respectively hinged to one end of the connecting rod 19. The other end of the connecting rod 19 is hinged to one end of the hook 20. The other end of the hook 20 is a hook for connecting to the lunch box 15. The hook 20 is arranged in the guide block 21 row. The hook 20 is driven to move on the guide block 21 by the throwing servo 17, the crank 18 and the connecting rod 19. The guide block 21 is fixed to the lower side of the main carbon plate 1.

[0012] Further optimization plan, Multiple limiting plates 16 are also provided on the lower side of the main carbon plate 1. When the throwing mechanism 14 clamps the lunch box 15, the multiple limiting plates 16 are located around the lunch box 15, and the multiple limiting plates 16 restrict the movement of the lunch box 15.

[0013] The beneficial effects of this utility model are as follows: This utility model logistics drone has a certain payload and can carry a certain weight of delivery boxes or goods through the carrying mechanism to achieve autonomous flight route planning. It takes into account the functions of speed, long endurance, small size and safety, improves the efficiency of food delivery, prevents the taste and temperature of food from being affected by the long delivery time of manual delivery, and can also reduce the delivery distance of couriers. At the same time, it can alleviate the problem of road traffic congestion to a certain extent. Attached Figure Description

[0014] The present invention can be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale; rather, the focus is on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention (angle 1); Figure 2 This is a schematic diagram of the overall structure of this utility model (angle two); Figure 3 This is a schematic diagram of the throwing mechanism of this utility model; Figure 4 This is a schematic diagram of the structure of the lunch box of this utility model; Figure 5 Partial structural schematic diagram of this utility model; The components in the diagram are: 1. Main carbon plate; 2. Upper carbon plate; 3. Crossbar; 4. Support leg; 5. Buffer pad; 6. Wire; 7. Brushless motor; 8. Propeller; 9. Data transmission device; 10. RTK antenna; 11. GPS antenna; 12. Battery; 13. Parachute; 14. Throwing mechanism; 15. Lunch box; 16. Limiting plate; 17. Throwing servo; 18. Crank; 19. Connecting rod; 20. Hook; 21. Guide block; 22. Upper anti-angle washer. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0017] In the description of this utility model, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] like Figure 1 As shown, this utility model discloses a high-efficiency and stable multi-rotor logistics drone, which aims to improve the speed and stability of delivery, is not affected by traffic congestion, and reduces interference from the external environment and its own internal interference.

[0020] Reference Appendix Figure 1 The frame of this utility model of multi-rotor logistics drone mainly includes a main carbon plate 1, an upper carbon plate 2, a crossbar 3, and support legs 4.

[0021] The main carbon plate 1 and the upper carbon plate 2 are fixedly connected by supporting copper columns. The main carbon plate 1 and the upper carbon plate 2 are parallel to each other, thus forming a space that can accommodate the UAV control system, transmission system and power supply system.

[0022] The power supply system is used to supply power to the various electrical components on the drone. The power supply system can be a rechargeable battery 12 or a replaceable disposable battery 12.

[0023] The control system may include an onboard computer and a flight control system, which serve communication and command functions and are not shown in the figure. The onboard computer is used to send control signals to the flight control system to control the movement of the UAV. The onboard computer can receive control signals sent by the ground operator through the data transmission device 9 of the transmission system.

[0024] The transmission system includes a data transmission device 9, an RTK antenna 10, and a GPS antenna 11. The data transmission device 9 encodes and modulates various data collected and captured by the UAV through a gimbal camera (not shown in the figure) mounted on the main carbon plate 1, converting the digital signals into radio frequency signals suitable for transmission over a wireless channel. After being received by the ground, the data undergoes demodulation and decoding to restore it to its original form for analysis and processing by ground station operators. Simultaneously, control commands sent from the ground station to the UAV are transmitted through the same process. The onboard computer / flight control system connects to the data transmission device 9, GPS antenna 11, and gimbal camera to enable the transmission of data and commands.

[0025] Reference Appendix Figure 1 , 2 A crossbar 3 is provided on all four sides of the main carbon plate 1, and the main carbon plate 1 is a square plate. For example... Figure 1 , 2 As shown, both ends of the crossbar 3 extend from one side of the main carbon plate 1. A brushless motor 7 and a propeller 8 are installed on the end of the extended part of the crossbar 3. The lengths of the four crossbars are equal, and the lengths of the extended parts at both ends of the crossbar 3 are also equal.

[0026] The brushless motor 7 and propeller 8 are mounted on the upper side at one end, and on the lower side at one of the adjacent ends, arranged alternately or sequentially. The specific arrangement is as follows: Figure 1 .

[0027] In this invention, the brushless motor 7 and propeller 8 are inverted on the lower side of the end of the crossbar 3. This is mainly to achieve two objectives: firstly, it can reduce the mutual interference of airflow between the propellers to a certain extent; secondly, compared with the original layout on the same horizontal plane, the size of the propellers has greater adjustment space. Achieving these two objectives is also based on the fact that this drone is intended for the logistics industry. The adjustments are specifically made to meet the requirements of the industry, making the drone more stable and highly suitable for logistics transportation.

[0028] Reference Appendix Figure 1 , 2 The crossbar 3 is composed of two parallel transverse bars and two parallel longitudinal bars, forming four intersection points. These four intersection points are located at the four corners of the main carbon plate 1, and downward-extending support legs 4 are installed at each of the four intersection points. To reduce the impact during drone landing, a buffer pad 5 is installed at the lower end of the support leg 4. The buffer pad 5 is elastic, which can ensure the balance and stability of the drone during takeoff and landing, and can effectively protect the landing gear, i.e., the support leg 4.

[0029] In this invention, in order to ensure the stability of the load on the drone, the crossbar 3 (horizontal bar and longitudinal bar) and the support leg 4 are both made of high-strength carbon fiber.

[0030] Reference Appendix Figure 1 , 2 In this invention, an upper carbon plate 2 is provided above the main carbon plate 1, and a parachute 13 is provided on the upper carbon plate 2. The parachute 10 serves as a safety protection measure. When the drone experiences a large-angle tilt and loses control, the parachute 10 can be deployed by the onboard computer and flight control system, such as in the event of strong winds or an accident during flight that renders the drone inoperable.

[0031] Reference Appendix Figure 2 , 3 A throwing mechanism 14 is provided below the main carbon plate 1. The throwing mechanism 14 is used to fix / throw the lunch box 15.

[0032] In order to reduce the weight of the drone and to eliminate the problem of multiple throwing mechanisms 14 being out of sync, only one set of throwing mechanisms 14 is provided in this utility model.

[0033] Reference Appendix Figure 3Specifically, the throwing mechanism 14 has a throwing servo 17 fixedly connected to the lower side of the main carbon plate 1. A crank 18 is mounted on the output shaft of the throwing servo 17, and the output shaft is connected to the middle of the crank 18. Both ends of the crank 18 are hinged to one end of a connecting rod 19, and the other end of the connecting rod 19 is hinged to one end of a hook 20. The other end of the hook 20 is a hook portion for connecting to the lunchbox 15. The hook 20 is located in the row of guide blocks 21. The hook 20 is driven to move on the guide blocks 21 by the throwing servo 17, crank 18, and connecting rod 19. The guide blocks 21 are fixed to the lower side of the main carbon plate 1. Two guide blocks 21 can be provided on each side. When fixed, the hook portion of the hook 20 is inserted into a hole opened on the side of the lunchbox 15 (see attached diagram). Figure 4 The holes are located on both sides of the lunch box 15.

[0034] The throwing mechanism 14 of this utility model is similar to a crank-slider mechanism, but the slider is replaced with a hook 20 made of aluminum rod, thereby realizing the clamping and releasing of the lunch box, with a clamping range of 305mm to 360mm.

[0035] Reference Appendix Figure 2 Multiple limiting plates 16 are also provided on the lower side of the main carbon plate 1. When the throwing mechanism 14 clamps the lunch box 15, the multiple limiting plates 16 are located around the lunch box 15. The multiple limiting plates 16 restrict the movement of the lunch box 15, which improves the stability of the lunch box 15 during the transfer process. This improvement is also to meet the high requirements for stability in the logistics industry.

[0036] In the traditional configuration where the brushless motor 7 and propeller 8 are horizontally mounted, the drone generates a horizontal force before takeoff. This force is easily affected by external disturbances and difficult to control. To improve flight attitude control, an upward dihedral is added, effectively creating another horizontal force that cancels out the horizontal separation during takeoff. This transforms the uncontrollable disturbance into a controllable one. (See attached reference.) Figure 5 An upper anti-angle washer 22 is provided between the brushless motor 7 and the end. The upper anti-angle washer 22 can be a circular washer or a square washer. The upper and lower surfaces of the upper anti-angle washer 22 are not parallel to each other and form an angle of less than 90 degrees between them. It can also be considered that the thickness of one side of the upper anti-angle washer 22 is greater than the thickness of the other side.

[0037] Reference Appendix Figure 5 When the brushless motor 7 and propeller 8 are mounted on the upper side, the upper anti-angle shim 22 causes the brushless motor 7 and propeller 8 to tilt inward, along the crossbar 3 towards the main carbon plate 1; when the brushless motor 7 and propeller 8 are mounted on the lower side, the upper anti-angle shim 22 causes the brushless motor 7 and propeller 8 to tilt outward, along the crossbar 3 towards the outside.

[0038] To prevent the dihedral angle from significantly impacting the drone's lift and increasing energy consumption, in this invention, the angle between the upper and lower surfaces of the dihedral angle pad 22 is set to 4-8 degrees, and the brushless motor 7 and propeller 8 also form an angle of 4-8 degrees with the vertical direction. When the angle is less than 4 degrees, the anti-disturbance effect is not significant; however, when the angle is greater than 8 degrees, the drone experiences a noticeable loss of lift and higher energy consumption, which is extremely power-intensive for portable batteries, affecting the drone's endurance and delivery efficiency. Therefore, the angle in this invention needs to be specifically controlled.

[0039] Reference Appendix Figure 1 The brushless motor 7 is connected to the onboard computer, flight control system and battery 12 via wire 6. The wire 6 passes through the inside of the crossbar 3 and connects to the brushless motor 7. It is not shown in the figure, but a hole can also be opened in the middle of the crossbar 3 for the wire 6 to pass through, so as to facilitate connection with the onboard computer, flight control system and battery 12.

[0040] It should be noted that, in order to achieve the purpose of this utility model, all solutions not mentioned in the solution but required to solve the problem are adopted from existing technologies.

[0041] The beneficial effects of this utility model are as follows: This utility model logistics drone has a certain payload and can carry a certain weight of delivery boxes or goods through the carrying mechanism to achieve autonomous flight route planning. It takes into account the functions of speed, long endurance, small size and safety, improves the efficiency of food delivery, prevents the taste and temperature of food from being affected by the long delivery time of manual delivery, and can also reduce the delivery distance of couriers. At the same time, it can alleviate the problem of road traffic congestion to a certain extent.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-rotor logistics drone, characterized in that: The UAV has a main carbon plate (1), and crossbars (3) are provided on all four sides of the main carbon plate (1). A brushless motor (7) and a propeller (8) are provided on the end of the extended part of the crossbar (3). The brushless motor (7) and the propeller (8) are installed on the upper side at one end, and on the lower side at the adjacent end, and are arranged at intervals in sequence. A throwing mechanism (14) is provided below the main carbon plate (1), which is used to fix / throw the lunch box (15).

2. The multi-rotor logistics drone according to claim 1, characterized in that: An upper carbon plate (2) is provided above the main carbon plate (1), and a parachute (13) is provided on the upper carbon plate (2).

3. The multi-rotor logistics drone according to claim 1, characterized in that: An upper anti-angle washer (22) is provided between the brushless motor (7) and the end, and the thickness of one side of the upper anti-angle washer (22) is greater than the thickness of the other side; When installed on the upper side, the upper anti-angle pad (22) causes the brushless motor (7) and the propeller (8) to tilt inward; When mounted on the lower side, the upper anti-angle pad (22) causes the brushless motor (7) and the propeller (8) to tilt outward.

4. A multi-rotor logistics drone according to claim 3, characterized in that: The included angle between the upper and lower surfaces of the upper anti-angle pad (22) is set to 4-8 degrees, and the included angle between the brushless motor (7) and the propeller (8) and the vertical direction is 4-8 degrees.

5. A multi-rotor logistics drone according to claim 2, characterized in that: A data transmission device (9), an RTK antenna (10), a GPS antenna (11), an airborne computer, a flight control system, and a battery (12) are provided in the space formed by the main carbon plate (1) and the upper carbon plate (2). The brushless motor (7) is connected to the onboard computer, flight control system and battery (12) via a wire (6), which passes through the inside of the crossbar (3) and connects to the brushless motor (7).

6. A multi-rotor logistics drone according to claim 1, characterized in that: Support legs (4) for support are provided on the crossbars (3) at the four corners of the main carbon plate (1), and buffer pads (5) are provided at the lower end of the support legs (4).

7. A multi-rotor logistics drone according to claim 6, characterized in that: Both the crossbar (3) and the support leg (4) are carbon steel tubes.

8. A multi-rotor logistics drone according to claim 1, characterized in that: The throwing mechanism (14) has a throwing servo (17) fixedly connected to the lower side of the main carbon plate (1). A crank (18) is provided on the output shaft of the throwing servo (17). The output shaft is connected to the middle of the crank (18). The two ends of the crank (18) are respectively hinged to one end of the connecting rod (19). The other end of the connecting rod (19) is hinged to one end of the hook (20). The other end of the hook (20) is a hook for connecting to the lunch box (15). The hook (20) is set in the guide block (21). The hook (20) is driven to move on the guide block (21) by the throwing servo (17), the crank (18) and the connecting rod (19). The guide block (21) is fixed to the lower side of the main carbon plate (1).

9. A multi-rotor logistics drone according to claim 1, characterized in that: Multiple limiting plates (16) are also provided on the lower side of the main carbon plate (1). When the throwing mechanism (14) clamps the lunch box (15), the multiple limiting plates (16) are located around the lunch box (15) and restrict the movement of the lunch box (15).

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