A twin-tail boom vertical takeoff and landing fixed-wing UAV with easy-to-store landing gear

Abstract

This utility model discloses a dual-tail-boom vertical take-off and landing fixed-wing UAV with easy-to-store landing gear. It includes: a UAV body, a landing gear assembly at the bottom of the UAV body, the landing gear assembly including a fixed base installed at the bottom of the UAV body, a drive motor installed on the outer wall of the fixed base, and multiple drive motor outputs connected to a support assembly for the UAV to support the ground. This can avoid the increase in size caused by the fixed landing gear, which would affect the drag of later flight. Secondly, during landing, it can also adaptively compensate for multiple support points, thereby reducing the risk of tipping over, damage to the fuselage or mission payload caused by excessive height difference of support points, and greatly improving the take-off and landing stability of the UAV in complex environments.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a dual-tail-boom vertical take-off and landing (VTOL) fixed-wing UAV that facilitates the storage of its landing gear. Background Technology

[0002] Twin-boom vertical takeoff and landing fixed-wing UAVs are a type of UAV that can take off and land vertically without a runway, just like multi-rotor UAVs. After takeoff, they can switch to fixed-wing mode to achieve long-endurance and long-range flight. The UAVs have twin-boom structures on both sides of the fuselage to enhance stability. They combine flexible takeoff and landing with efficient operation and are commonly used in scenarios such as inspection, rescue, and surveying.

[0003] Existing twin-boom VTOL fixed-wing drones often require landing gear for practical use. This allows for support of the drone's bottom during landing, preventing direct contact with the ground and potential damage. However, these drones are often quite long, necessitating even support to prevent tilting. The fixed support structure significantly increases the drone's overall size and frontal area, leading to increased air resistance during flight. This not only shortens flight time and reduces efficiency but can also affect stability in complex airflow environments.

[0004] Secondly, the flatness of the ground often varies when drones land. Using simple support frames often causes the drone to tilt or even fall over due to uneven ground, which can damage the drone. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] In view of the problems existing in the above and / or existing twin-tail boom vertical take-off and landing fixed-wing UAVs, this utility model is proposed.

[0007] Therefore, the purpose of this invention is to provide a twin-tail-boom vertical take-off and landing fixed-wing UAV that is easy to store with its landing gear.

[0008] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0009] A twin-tail boom vertical take-off and landing fixed-wing UAV with easy-to-store landing gear includes: a UAV body, a landing gear assembly at the bottom of the UAV body, the landing gear assembly including a fixed base installed at the bottom of the UAV body, a drive motor on the outer wall of the fixed base, and a support assembly for the UAV to support the ground at the output ends of a plurality of drive motors.

[0010] As a preferred embodiment of the dual-tail-boom vertical take-off and landing fixed-wing UAV that facilitates the storage of landing gear described in this utility model, the bottom of the fixed base is provided with a groove, and the inner wall of the groove is provided with a slot.

[0011] As a preferred embodiment of the dual-tail-boom vertical take-off and landing fixed-wing UAV that facilitates the storage of landing gear described in this utility model, multiple landing gear assemblies are respectively disposed on the inner wall of the slot, and the multiple landing gear assemblies are respectively arranged in a mirror-symmetrical manner.

[0012] As a preferred embodiment of the dual-tail-boom vertical take-off and landing fixed-wing UAV that facilitates the storage of landing gear according to this utility model, the support assembly includes a rotating plate installed at the output end of the drive motor, and a connecting seat is fixedly installed on the outer wall of the rotating plate.

[0013] As a preferred embodiment of the dual-tail-boom vertical take-off and landing fixed-wing UAV that facilitates the storage of landing gear described in this utility model, the outer walls on both sides of the connecting seat are provided with limiting plates, and the multiple limiting plates correspond to and match the multiple slots.

[0014] As a preferred embodiment of the dual-tail-boom vertical take-off and landing fixed-wing UAV that facilitates the storage of landing gear described in this utility model, the inner wall of the connecting seat is rotatably connected to multiple rotating support frames, and springs are connected between the multiple rotating support frames.

[0015] As a preferred embodiment of the dual-tail-boom vertical takeoff and landing fixed-wing UAV with easily retractable landing gear described in this utility model, the plurality of rotating support frames have cavities inside, and springs are provided on the inner walls of the cavities.

[0016] As a preferred embodiment of the dual-tail-boom vertical take-off and landing fixed-wing UAV described in this utility model, which facilitates the storage of landing gear, one end of the spring is connected to a telescopic rod, and the end of the telescopic rod is connected to a rubber ball.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: In actual use, the landing gear of this device is retractable. During landing, two drive motors can be controlled to drive two support components to rotate. During the downward rotation of the support components, the rebound of the second spring can cause the two rotating support frames to tilt separately, thereby achieving a triangular support effect during landing. When retracting, the two drive motors can be controlled to reverse, thereby retracting the support components. During the retraction process, multiple inclined plates symmetrically arranged at the bottom of the fixed base can cooperate with the inclined surfaces of the side walls of multiple rotating support frames to allow the two rotating support frames to be pulled and pressed, causing the second spring to compress, thereby retracting into the slot, avoiding the increase in volume caused by the fixed setting of the landing gear, which would affect the drag of later flight.

[0018] Secondly, during landing, multiple rotating support frames are equipped with springs, and the ends of these springs are connected to telescopic rods. When the drone lands, these telescopic rods can adaptively compress, ensuring that even when landing on uneven surfaces, the drone can adaptively compensate for multiple support points. This reduces the risk of tipping over, damage to the fuselage, or loss of mission payload caused by excessive differences in support point heights, and significantly improves the drone's takeoff and landing stability in complex environments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] in:

[0021] Figure 1 This is a schematic diagram of the overall structure of a dual-tail-boom vertical take-off and landing fixed-wing UAV with easy-to-store landing gear according to the present invention.

[0022] Figure 2 This utility model relates to a landing gear assembly structure for a dual-tail-boom vertical takeoff and landing fixed-wing UAV that facilitates landing gear storage.

[0023] Figure 3 This utility model relates to a twin-tail boom vertical takeoff and landing fixed-wing UAV with easily retractable landing gear. Figure 2 A schematic diagram of the bottom structure of the landing gear assembly;

[0024] Figure 4 This utility model relates to a twin-tail boom vertical takeoff and landing fixed-wing UAV with easily retractable landing gear. Figure 1 A schematic diagram of the bottom structure of the fixing base;

[0025] Figure 5 This utility model relates to a twin-tail boom vertical takeoff and landing fixed-wing UAV with easily retractable landing gear. Figure 3 A schematic diagram of the connecting seat structure in the diagram;

[0026] Figure 6 This utility model relates to a twin-tail boom vertical takeoff and landing fixed-wing UAV with easily retractable landing gear. Figure 5 A schematic diagram of the internal structure of the rotating support frame.

[0027] The following are the labels in the diagram: 100, UAV body; 200, fixed base; 210, drive motor; 220, tilting plate; 230, groove; 231, slot; 240, rotating plate; 250, connecting base; 251, limiting plate; 260, rotating support frame; 261, cavity; 262, spring one; 263, telescopic rod; 264, rubber ball; 270, spring two. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0031] This utility model provides a dual-tail-boom vertical take-off and landing fixed-wing UAV with easy-to-store landing gear, including: UAV body 100, landing gear assembly is provided at the bottom of UAV body 100, landing gear assembly includes a fixed base 200 installed at the bottom of UAV body 100, drive motor 210 is provided on the outer wall of fixed base 200, and the output ends of multiple drive motors 210 are connected to a support assembly for UAV to support the ground.

[0032] Refer to the following in this embodiment Figure 1The main body of the UAV 100 serves as the core load-bearing structure of the entire UAV, integrating key components such as the flight control system, power system, and mission payload. It is the basic platform for realizing vertical take-off and landing, fixed-wing flight, and various operational functions. Its bottom is specially designed with an installation interface for stable connection of the landing gear assembly, ensuring that the landing gear maintains a reliable connection with the main body during retraction and support. Its twin-tail boom vertical take-off and landing fixed-wing UAV is a conventional technology that does not need to be elaborated. Its control is all done by external remote controllers and other control systems, which also do not need to be elaborated.

[0033] Specifically, the bottom of the fixed base 200 is provided with a groove 230, and the inner wall of the groove is provided with a slot 231.

[0034] Refer to the following in this embodiment Figure 1-3 The mounting base 200 serves as the mounting foundation for the landing gear assembly, fixedly connected to the bottom of the UAV body 100, and functions to support and position the assembly. Its structural design conforms to the contours of the UAV body's bottom, ensuring the overall connection's sealing and stability, while providing a stable mounting reference for the drive motor and support assembly.

[0035] Specifically, multiple landing gear assemblies are respectively installed on the inner wall of the trough 230, and the multiple landing gear assemblies are arranged in a mirror-symmetrical manner to facilitate the balanced support of the vibration-induced UAV.

[0036] Specifically, the support assembly includes a rotating plate 240 installed at the output end of the drive motor 210, and a connecting seat 250 is fixedly installed on the outer wall of the rotating plate 240.

[0037] Refer to the following in this embodiment Figure 1-3 The drive motor 210 is installed on the outer wall of the fixed base 200 and is the power source for controlling the extension and retraction of the support component. By receiving instructions from the UAV control system, it can rotate forward or backward, thereby driving the support component to extend downward or retract upward. Its output torque is matched to ensure that the support component moves smoothly and reliably during the extension and retraction process.

[0038] Specifically, limit plates 251 are provided on the outer walls of both sides of the connecting seat 250, and multiple limit plates 251 correspond to and match multiple slots 231.

[0039] Refer to the following in this embodiment Figure 4The groove 230 is located at the bottom of the fixed base 200 and serves as a storage space for the support component. Its size and shape are perfectly matched to the support component, allowing it to be fully embedded when the support component is stored, thus preventing the landing gear from protruding from the bottom of the drone and reducing air resistance during flight. The slot 231 is located on the inner wall of the groove and works in conjunction with the limiting plate 251 on the support component. It plays a guiding and limiting role during the unfolding and folding of the support component. By restricting the movement trajectory of the limiting plate 251, it ensures that the support component can only rotate within a preset angle range, avoiding the impact on the support or folding effect due to excessive or insufficient rotation angle.

[0040] Specifically, multiple rotating support frames 260 are rotatably connected to the inner wall of the connecting seat 250, and springs 270 are connected between the multiple rotating support frames 260.

[0041] In this embodiment, refer to 5: Fixedly installed on the outer wall of the rotating plate 240, used for installing and connecting the rotating support frame 260, which is the intermediate connecting structure of the support assembly. It has a rotating shaft inside, which allows the rotating support frame to rotate flexibly. At the same time, its structural strength can withstand the impact force when the UAV lands. Rotarily connected to the inner wall of the connecting seat 250, it is a support component that is in direct contact with the ground. During the unfolding process of the support assembly, it separates and tilts outward under the action of the second spring 270 to form a stable support structure. During the storage process, it is squeezed inward under the pressure of the tilting plate and finally embedded in the groove 230.

[0042] Specifically, each of the multiple rotating support frames 260 has a cavity 261 inside, and a spring 262 is installed on the inner wall of the cavity 261.

[0043] Specifically, a telescopic rod 263 is connected to the end of spring 262, and a rubber ball 264 is connected to the end of telescopic rod 263.

[0044] Refer to the following in this embodiment Figure 6 Attached to the end of telescopic rod 263, it is made of elastic rubber. When the drone lands, it makes direct contact with the ground, which increases the friction with the ground to prevent the drone from sliding. It also acts as a buffer to reduce the impact during landing and protect the bottom structure of the drone.

[0045] In some embodiments, the device is powered by a battery that is externally connected to the drone body 100.

[0046] In this embodiment, the landing gear of the device is retractable during actual use. During landing, the two drive motors 210 can be controlled to drive the two support components to rotate. As the support components rotate downward, the rebound of the spring 270 causes the two rotating support frames 260 to tilt apart, thus providing a triangular support effect during landing. During retraction, the two drive motors 210 can be controlled to reverse, thereby retracting the support components. During retraction, the multiple inclined plates 220 symmetrically arranged at the bottom of the fixed base 200 can cooperate with the inclined surfaces of the side walls of the multiple rotating support frames 260 to make the two rotating support frames... The 260 can be pulled and compressed, causing the second spring 270 to compress and thus be retracted into the slot. This avoids the fixed landing gear setting from increasing the volume and affecting the drag of later flight. Secondly, during landing, multiple rotating support frames 260 are equipped with springs 262. The ends of the multiple springs 262 are connected to telescopic rods 263. When the UAV lands, the telescopic rods 263 can be adaptively compressed, thus ensuring that even when landing on uneven ground, it can adaptively compensate for multiple support points. This reduces the risk of tipping over, damage to the fuselage or mission payload caused by excessive height difference of support points, and greatly improves the take-off and landing stability of the UAV in complex environments.

[0047] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A twin-tail boom VTOL fixed-wing UAV with stowable landing gear, comprising: The unmanned aerial vehicle (UAV) body (100) is characterized in that a landing gear assembly is provided at the bottom of the UAV body (100), the landing gear assembly includes a fixed base (200) installed at the bottom of the UAV body (100), a drive motor (210) is provided on the outer wall of the fixed base (200), and the output ends of the plurality of drive motors (210) are connected to a support assembly for the UAV to support the ground.

2. The twin-boom VTOL fixed-wing UAV with landing gears stowed away according to claim 1, wherein, The bottom of the fixed base (200) is provided with a groove (230), and the inner wall of the groove is provided with a slot (231).

3. The twin-boom VTOL fixed-wing UAV with tail-ski landing gear storage convenience according to claim 2, characterized in that, Multiple landing gear assemblies are respectively disposed on the inner wall of the groove (230), and the multiple landing gear assemblies are respectively arranged in a mirror-symmetrical manner.

4. The twin-boom VTOL fixed-wing UAV with landing gears stowed away according to claim 3, wherein, The support assembly includes a rotating plate (240) installed at the output end of the drive motor (210), and a connecting seat (250) is fixedly installed on the outer wall of the rotating plate (240).

5. The twin-boom VTOL fixed-wing UAV of claim 4, wherein, Limiting plates (251) are provided on both sides of the outer wall of the connecting seat (250), and multiple limiting plates (251) correspond to and match multiple slots (231).

6. The twin-boom VTOL fixed-wing UAV with tail-ski landing gear storage convenience according to claim 4, characterized in that, The inner wall of the connecting seat (250) is rotatably connected to a plurality of rotating support frames (260), and a spring (270) is connected between the plurality of rotating support frames (260).

7. The twin-boom VTOL fixed-wing UAV of claim 6, wherein, Each of the multiple rotating support frames (260) has a cavity (261) inside, and a spring (262) is provided on the inner wall of the cavity (261).

8. The twin-boom VTOL fixed-wing UAV of claim 7, wherein, The spring (262) is connected to a telescopic rod (263) at one end, and a rubber ball (264) is connected to the other end of the telescopic rod (263).

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