Air-drop device for unmanned aerial vehicle

Abstract

The utility model discloses an air-drop device for an unmanned aerial vehicle, which belongs to the technical field of unmanned aerial vehicles and comprises a base, four support columns for supporting the air-drop device are fixedly mounted at the upper end of the base, and two expandable opening and closing doors are arranged above the base. The two sides of the opening and closing door are movably connected to the ends, close to each other, of the two supporting stand columns correspondingly, six wing plates capable of changing airflow distribution around the device are symmetrically arranged above the base, and the three wing plates in each set are movably connected to the middles of the two corresponding supporting stand columns correspondingly. When the unmanned aerial vehicle is used, through control of a built-in circuit and a flight control system, the wing plates are driven to rotate, so that the angles of the wing plates are adjusted, and under the action of the sliding rod, the wing plates are adjusted at the same speed at the same time, so that the effect of changing the air flow direction is achieved.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically an airdrop device for UAVs. Background Technology

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control equipment and onboard program control devices, or operated autonomously, either fully or intermittently, by an onboard computer. With the rapid development of technology, UAVs are increasingly widely used in various fields. Among these applications, UAV airdrop devices, as a key supporting facility for UAV missions, are playing an increasingly important role, especially in emergency rescue scenarios. In the event of natural disasters such as earthquakes, floods, and mudslides, traffic is often paralyzed, making it difficult for rescue teams to quickly reach the affected areas, and stranded people cannot obtain urgently needed relief supplies such as drinking water, first-aid medicines, and warm clothing in a timely manner. UAV airdrop devices, with their advantages of being unrestricted by terrain and having a rapid response capability, can overcome obstacles in the shortest possible time, reach the airspace above the stranded location, and accurately drop life-saving supplies to designated locations, buying precious time to save lives.

[0003] Chinese patent discloses an airdrop device for drones (authorization announcement number CN 221776027U), including a box body. A cover plate is movably connected to the top of the box body, and a hook is installed on the upper surface of the cover plate. A locking device is installed between the box body and the cover plate. Inflatable bladders are installed on the front and rear walls of the inner cavity of the box body. This invention involves placing the supplies to be airdropped inside the box body, then inflating the bladders using a one-way inflation valve. As the bladders are inflated, they gradually push the soft, abutting side panels to move in opposite directions. Combined with the soft material of the side panels, the supplies placed at the center of the bottom of the box body are gradually brought into close contact with the bladders. Finally, the cover plate is closed.

[0004] This patent allows for the control of the movement distance of the soft abutment side panel by adjusting the inflation amount of the inflatable bladder for materials of different sizes, thus fixing the position of the materials. While this can prevent materials from shaking and colliding with the airdrop container, it cannot prevent significant shaking of the device during transportation in strong winds, which could cause damage to the materials from the inside. Furthermore, the inflation of the internal bladder during transportation occupies space, making it difficult to transport enough materials at once in emergencies, thus reducing the device's transportation efficiency. Therefore, this utility model provides an airdrop device for drones to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide an airdrop device for unmanned aerial vehicles (UAVs) to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An airdrop device for unmanned aerial vehicles includes a base. Four support columns for supporting the device are fixedly installed on the upper end of the base. Two expandable doors are provided above the base, and the two sides of the doors are movably connected to the two support columns at their close proximity. Six wing plates capable of changing the airflow distribution around the device are symmetrically arranged above the base. Each group of three wing plates is movably connected to the middle of two corresponding support columns.

[0008] As a further embodiment of this utility model, a sensor light is fixedly installed at the lower end of the base, a hook is fixedly connected to the upper end of the top cover, and four buffer pads are fixedly installed at the four apex corners of the lower end of the base to reduce the impact force when the drone lands.

[0009] As a further embodiment of this utility model, the wing plate is equipped with an angle sensor, and an adjustment assembly is provided in the hollow structure inside the two supporting columns. The adjustment assembly includes a first drive rod, a second drive rod, and a third drive rod, and the first drive rod, the second drive rod, and the third drive rod form a drive rod group.

[0010] As a further embodiment of this utility model, the first driving rod and the second driving rod are rotatably connected to the inner wall of the supporting column, and the first driving rod and the second driving rod are engaged with each other. The third driving rod is rotatably connected to the end of the second driving rod away from the first driving rod. The third driving rod of the upper driving rod group is rotatably connected to the first driving rod of the lower driving rod group. The end of the third driving rod of the lower driving rod group away from the second driving rod in its group is rotatably connected to the first driving rod.

[0011] As a further embodiment of this utility model, a lifting rod is fixedly connected to the outer wall of the first drive rod, and the end of the lifting rod away from the first drive rod is fixedly connected to the lower end of the corresponding wing plate. Sliding rods are rotatably connected between the upper drive rod group and the lower drive rod group, and between the lower drive rod group and the first drive rod below it.

[0012] As a further embodiment of this utility model, a connecting crossbar is rotatably connected to one side of the opening and closing door, and a second connecting shaft is rotatably connected to one end of the connecting crossbar. The second connecting shaft is rotatably connected to the outer wall of one side of the opening and closing door. A storage groove is provided on one side of the opening and closing door for the movement and storage of the connecting crossbar. The end of the connecting crossbar away from the corresponding opening and closing door is rotatably connected to the outer wall of another supporting column. A limiting block is rotatably connected to one side of the opening and closing door, and a limiting groove is provided on the inner wall of the corresponding supporting column for the limiting block to slide inside the limiting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. When this utility model is in use, after the drone transports and airdrops the goods to the designated location, it will land at the location, illuminate the ground with a sensor light, and send a signal. Under the conduction of the built-in circuit, it will drive the two first connecting shafts to rotate, causing the end of the connecting crossbar away from the first connecting shaft to rise upward. At the same time, the movement trajectory of the opening and closing door is restricted by the limiting block, and the two opening and closing doors will unfold upward in opposite directions, thereby maximizing the storage space inside the device, improving the transportation efficiency of the device, and facilitating the retrieval of the airdropped materials placed inside.

[0015] 2. When this utility model is in use, the rotation angle of the first drive rod of the upper drive rod group can be adjusted through the built-in circuit and the control of the flight control system. This will drive the lower drive rods and wing plates to rotate, thereby adjusting the angle of the wing plates. Under the action of the sliding rod, each wing plate will adjust at the same rate, thereby changing the direction of the airflow. This will significantly reduce the obstruction of the drone's transport efficiency by strong airflow when the drone encounters strong airflow during high-altitude transport and airdrop. This will avoid a series of problems such as reduced endurance and slow speed of the drone during transport and airdrop, thus reducing the impact of high-altitude airflow on drone transport. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an airdrop device for drones.

[0017] Figure 2 This is a structural schematic diagram of an airdrop device for drones from another perspective.

[0018] Figure 3 This is a rendering of the deployment of an airdrop device for drones.

[0019] Figure 4 This is a schematic diagram of the structure of a wing plate for an airdrop device used by a drone.

[0020] Figure 5 This is a schematic diagram of the structural principle of a wing plate for an airdrop device used by a drone.

[0021] Figure 6 This is a schematic diagram of the opening and closing door of an airdrop device for drones.

[0022] Figure 7 This is a schematic diagram of the structure of a crossbar connecting a drop device for a drone.

[0023] Figure 8 This is a schematic diagram of a support column for an airdrop device used by a drone.

[0024] In the diagram: 1. Base; 2. Opening door; 3. Top cover; 4. Hook; 5. Support column; 6. Wing plate; 7. Adjustment assembly; 701. First drive rod; 702. Second drive rod; 703. Third drive rod; 704. Lifting rod; 705. Sliding rod; 8. Sliding track; 9. Connecting crossbar; 10. First connecting shaft; 1001. Connection port; 11. Second connecting shaft; 12. Limiting block; 1201. Limiting slide groove; 13. Storage slot; 14. Sensor light; 15. Buffer pad. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-8 In this embodiment of the utility model, an airdrop device for drones includes a base 1. Four support columns 5 are fixedly installed on the upper end of the base 1 to support the device. To facilitate the placement of airdropped items inside the device, two expandable opening doors 2 are provided above the base 1. The two opening doors 2 are symmetrically installed above the base 1, and the two sides of the opening doors 2 are respectively movably connected to the two support columns 5 at their close ends. When the drone is transporting airdrops at high altitude, it will inevitably encounter strong air currents. These air currents will hinder the transport efficiency of the drone to a certain extent, resulting in a series of problems such as reduced endurance and slower speed during the airdrop process. In order to minimize the impact of strong air currents at high altitude on the transport of drones, six wing plates 6 that can change the airflow distribution around the device are symmetrically arranged above the base 1. Specifically, each group of three wing plates 6 is movably connected to the middle of the corresponding two support columns 5.

[0027] A sensor light 14 is fixedly installed at the lower end of the base 1. When the drone is transported and airdropped to the designated location, it will land at the location. When the sensor light 14 shines on the ground, it will send a signal and cause the opening and closing door 2 to open automatically under the conduction of the built-in circuit. Specifically, in order to prevent the drone from encountering tall objects during transport flight and mistakenly opening the opening and closing door 2 in advance, thus exposing the transported items inside to the air and causing danger, the sensor light 14 has a certain time protection mechanism when it shines on the object. This protection mechanism will only take effect if the object does not change within the specified time. A hook 4 is fixedly connected to the upper end of the top cover 3. The device can be connected to the lower end of the drone through the hook 4, thereby driving the device and the internal materials for air transport. Four buffer pads 15 are fixedly installed at the four top corners of the lower end of the base 1 to reduce the impact force when the drone lands.

[0028] Please see Figures 4-5 The wingplate 6 is normally stored on the side of the device and does not affect normal flight. When encountering strong air, the wingplate 6 can be deployed and function. At the same time, the wingplate 6 has a built-in angle sensor that feeds back the angle information of the wingplate 6 to the flight control system. The flight control system precisely controls the angle of the wingplate 6 based on information such as wind speed, wind direction and the flight attitude of the UAV. In order to enable the wingplate 6 to be deployed smoothly and function, the upper part of the interior of the four supporting columns 5 is a hollow structure. An adjustment component 7 is set in the hollow structure of the interior of two supporting columns 5. The adjustment component 7 includes a first drive rod 701, a second drive rod 702 and a third drive rod 703. The first drive rod 701, the second drive rod 702 and the third drive rod 703 form a drive rod group, which is responsible for the lifting control of the corresponding wingplate 6.

[0029] The first drive rod 701 and the second drive rod 702 are rotatably connected to the inner wall of the support column 5, and the first drive rod 701 and the second drive rod 702 are meshed together. The third drive rod 703 is rotatably connected to the end of the second drive rod 702 away from the first drive rod 701. Specifically, each support column 5 has two sets of drive rods installed inside, and the two drive rod sets are installed and driven in the same way. The third drive rod 703 of the upper drive rod set is rotatably connected to the first drive rod 701 of the lower drive rod set. More specifically, the end of the third drive rod 703 of the lower drive rod set away from the second drive rod 702 in its set is rotatably connected to the first drive rod 701, thereby achieving the lifting control effect of the corresponding wing plate 6.

[0030] A lifting rod 704 is fixedly connected to the outer wall of the first drive rod 701. The end of the lifting rod 704 away from the first drive rod 701 is fixedly connected to the lower end of the corresponding wing plate 6. In order to enable each wing plate 6 to open and close at the same speed, so that the airflow is adjusted in a relatively stable state, sliding rods 705 are rotatably connected between the upper drive rod group and the lower drive rod group, and between the lower drive rod group and the first drive rod 701 below it. Specifically, a sliding track 8 is opened inside the support column 5, and the sliding rod 705 is slidably connected inside the sliding track 8. Through the control of the built-in circuit and the flight control system, the rotation angle of the first drive rod 701 of the upper drive rod group can be adjusted, thereby driving each drive rod below and the wing plate 6 to rotate, thereby adjusting the angle of the wing plate 6. Under the action of the sliding rod 705, each wing plate 6 is adjusted at the same speed to achieve the effect of changing the direction of the airflow.

[0031] Please see Figures 6-8 To enable the opening and closing of the doors 2, thereby protecting and retrieving airdropped supplies inside the device, the two doors 2 are arranged symmetrically. This allows the two doors 2 to rotate in opposite directions when opening, enabling them to simultaneously unfold outwards from the device, thus not occupying internal storage space and maximizing transportation efficiency. A connecting crossbar 9 is rotatably connected to one side of each door 2. Specifically, one end of the connecting crossbar 9 is rotatably connected to a second connecting shaft 11.

[0032] A rotatable connection is made to one side of the outer wall of the opening and closing door 2. To prevent the opening and closing door 2 from being blocked by the connecting crossbar 9 when closed, thus preventing it from failing to close, a storage groove 13 is provided on one side of the opening and closing door 2 for the movement and storage of the connecting crossbar 9. The end of the connecting crossbar 9 away from the corresponding opening and closing door 2 is rotatably connected to the outer wall of another supporting column 5. Specifically, the end of the connecting crossbar 9 away from the corresponding opening and closing door 2 is rotatably connected to a first connecting shaft 10. A connection port 1001 is provided on the outer wall of the corresponding supporting column 5, and the first connecting shaft 10 is rotatably connected to the connection port 1001. More specifically, the first connecting shaft 10 is connected to the circuit controlled by the sensor light 14. Through the control of the sensor light 14, the first connecting shaft 10 can be driven and rotated, thereby driving the connecting crossbar 9 to move. A limiting block 12 is rotatably connected to the side. The inner wall of the corresponding support column 5 is provided with a limiting groove 1201 for the limiting block 12 to slide inside the limiting groove 1201. In order to avoid the opening and closing door 2 from colliding with the top cover 3 during the opening process, the upper end of the opening and closing door 2 is respectively opened into a ramp shape, so that the ramp of the opening and closing door 2 just slides along the top cover 3 without colliding with it during the opening process. When the device is parked on the ground, the two first connecting shafts 10 are driven by the built-in circuit to rotate, so that the end of the connecting crossbar 9 away from the first connecting shaft 10 is raised upward. At the same time, the limiting block 12 slides inside the limiting groove 1201 to limit the movement trajectory of the opening and closing door 2, so that the two opening and closing doors 2 are opened upward respectively, thereby facilitating the retrieval of the air-dropped materials placed inside.

[0033] The working principle of this utility model is as follows:

[0034] When this utility model is in use, after the drone transports and airdrops the material to the designated location, it will land at the location and illuminate the ground through the sensor light 14, sending a signal. Under the conduction of the built-in circuit, the two first connecting shafts 10 will rotate, causing the end of the connecting crossbar 9 away from the first connecting shaft 10 to rise upward. At the same time, the limiting block 12 slides inside the limiting groove 1201 to restrict the movement trajectory of the opening and closing door 2, so that the two opening and closing doors 2 will open upward respectively, thereby facilitating the retrieval of the airdropped materials placed inside.

[0035] Through the control of the built-in circuit and flight control system, the rotation angle of the first drive rod 701 of the upper drive rod group can be adjusted, thereby driving the rotation of each drive rod and wing plate 6 below, thus adjusting the angle of the wing plate 6. Under the action of the sliding rod 705, each wing plate 6 is adjusted at the same rate to change the direction of the airflow. This significantly reduces the obstruction of the drone's transport efficiency by strong airflow when encountering it during high-altitude transport and airdrop, thus avoiding a series of problems such as reduced endurance and slow speed of the drone during transport and airdrop, thereby reducing the impact of high-altitude airflow on drone transport.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An airdrop device for unmanned aerial vehicles, comprising a base (1), characterized in that, Four support columns (5) for supporting the device are fixedly installed on the upper end of the base (1). Two openable doors (2) are provided above the base (1), and the two sides of the doors (2) are movably connected to the two support columns (5) at their respective close ends. Six wing plates (6) that can change the airflow distribution around the device are symmetrically arranged above the base (1). Each group of three wing plates (6) is movably connected to the middle of the corresponding two support columns (5).

2. The airdrop device for unmanned aerial vehicles according to claim 1, characterized in that, A sensor light (14) is fixedly installed at the lower end of the base (1), and a hook (4) is fixedly connected to the upper end of the top cover (3). Four buffer pads (15) are fixedly installed at the four corners of the lower end of the base (1) to reduce the impact force when the drone lands.

3. The airdrop device for unmanned aerial vehicles according to claim 1, characterized in that, The wing plate (6) has an angle sensor built in it. An adjustment component (7) is provided in the hollow structure inside the two supporting columns (5). The adjustment component (7) includes a first drive rod (701), a second drive rod (702), and a third drive rod (703). The first drive rod (701), the second drive rod (702), and the third drive rod (703) form a drive rod group.

4. The airdrop device for unmanned aerial vehicles according to claim 3, characterized in that, The first drive rod (701) and the second drive rod (702) are rotatably connected to the inner wall of the support column (5), and the first drive rod (701) and the second drive rod (702) are engaged with each other. The third drive rod (703) is rotatably connected to the end of the second drive rod (702) away from the first drive rod (701). The third drive rod (703) of the upper drive rod group is rotatably connected to the first drive rod (701) of the lower drive rod group. The end of the third drive rod (703) of the lower drive rod group away from the second drive rod (702) in its group is rotatably connected to the first drive rod (701).

5. The airdrop device for unmanned aerial vehicles according to claim 3, characterized in that, A lifting rod (704) is fixedly connected to the outer wall of the first drive rod (701). The end of the lifting rod (704) away from the first drive rod (701) is fixedly connected to the lower end of the corresponding wing plate (6). Sliding rods (705) are rotatably connected between the upper drive rod group and the lower drive rod group, and between the lower drive rod group and the first drive rod (701) below it.

6. The airdrop device for unmanned aerial vehicles according to claim 1, characterized in that, A connecting crossbar (9) is rotatably connected to one side of the opening and closing door (2), and a second connecting shaft (11) is rotatably connected to one end of the connecting crossbar (9). A rotatable connection is made to one side of the outer wall of the opening and closing door (2). A storage groove (13) is provided on one side of the opening and closing door (2) for connecting the movement and storage of the crossbar (9). The end of the connecting crossbar (9) away from the corresponding opening and closing door (2) is rotatably connected to the outer wall of another supporting column (5). A limiting block (12) is rotatably connected to one side of the opening and closing door (2). A limiting groove (1201) for fiber placement of the limiting block (12) is provided on the inner wall of the corresponding supporting column (5). The limiting block (12) can slide inside the limiting groove (1201).

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