A ground free-moving device for a hollow long-endurance UAV platform

Abstract

The present invention discloses a ground free movement device for a hollow long-endurance unmanned aerial vehicle platform, comprising: three moving structures, each moving structure including a support assembly, with a protruding limiting portion provided on the upper side of the front end of the support assembly, a flap hinged to the rear end of the support assembly, and a fixing assembly rotatably connected to the middle of the support assembly, the fixing assembly being capable of cooperating with the limiting portion to form a tire limiting groove, connection lugs provided at the front end and both sides of the support assembly, and a traveling assembly provided on the lower side of the support assembly; three connecting rods, the lengths of the three connecting rods being adjustable, and the ends of the three connecting rods being capable of being hinged to the connection lugs to connect the three moving structures to form a triangular structure; the three moving structures are connected by three telescopic connecting rods to form a triangular structure, which is adapted to various models of unmanned aerial vehicles, and it is convenient to fix the tires of the unmanned aerial vehicle on the moving structure through the cooperation of the support assembly and the fixing assembly, thereby realizing the free movement of the unmanned aerial vehicle on the ground.

Description

Technical Field

[0001] The present invention belongs to the technical field of ground movement of unmanned aerial vehicles, and more specifically, relates to a ground free movement device for a medium-altitude long-endurance unmanned aerial vehicle platform. Background Art

[0002] Currently, the wingspans of the world's mainstream medium-altitude long-endurance unmanned aerial vehicle platforms can reach more than ten meters or even dozens of meters. For example, the wingspan of the American Predator unmanned aerial vehicle MQ-1 is 14.87 meters, the wingspan of the Global Hawk unmanned aerial vehicle RQ-4 is 35.4 meters, the wingspan of the Chinese Rainbow unmanned aerial vehicle CH-4 is 18 meters, and the wingspan of the Wing Loong unmanned aerial vehicle is 14 meters. When the unmanned aerial vehicle moves on the ground, it is restricted by the wings and cannot move flexibly. It is necessary to adjust the position of the unmanned aerial vehicle before moving forward or backward, and the operation is extremely inconvenient. Summary of the Invention

[0003] The purpose of the present invention is to provide a ground free movement device for a medium-altitude long-endurance unmanned aerial vehicle platform to solve the deficiencies in the prior art. Three retractable connecting rods are used to connect three moving structures to form a triangular structure, which is suitable for various models of unmanned aerial vehicles. It is convenient to fix the tires of the unmanned aerial vehicle on the moving structure through the cooperation of the support component and the fixing component, so as to realize the free movement of the unmanned aerial vehicle on the ground.

[0004] To achieve the above purpose, the present invention provides a ground free movement device for a medium-altitude long-endurance unmanned aerial vehicle platform, which includes:

[0005] Three moving structures, each moving structure includes a support component, a raised limiting part is arranged on the upper side of the front end of the support component, a flap is hinged to the rear end of the support component, a fixing component is rotatably connected to the middle of the support component, the fixing component can cooperate with the limiting part to form a tire limiting groove, connecting lugs are arranged at the front end and both sides of the support component, and a walking component is arranged on the lower side of the support component;

[0006] Three connecting rods, the lengths of the three connecting rods are adjustable, and the ends of the three connecting rods can be hinged to the connecting lugs to connect the three moving structures to form a triangular structure, and the three moving structures are located at the vertices of the triangular structure.

[0007] Optionally, the support component includes a support plate, and the limiting part is a triangular protrusion arranged at the front end of the support plate.

[0008] Optionally, the fixing component includes two fixing rods and a limiting rod, one end of each of the two fixing rods is respectively connected to both ends of the limiting rod to form a U-shaped structure, and the other end of at least one of the fixing rods is connected to the middle of the support component through a rotation control mechanism.

[0009] Optionally, a receiving groove capable of receiving the limiting rod is provided on the upper side of the support assembly.

[0010] Optionally, the rotation control mechanism:

[0011] A rotating shaft is provided on the support assembly;

[0012] A ratchet wheel is rotatably sleeved on the rotating shaft, and at least one of the fixing rods is connected to the ratchet wheel;

[0013] A pawl is movably arranged on one side of the ratchet wheel, and an elastic member is arranged on one side of the pawl. The elastic member applies an elastic force to the pawl to make the pawl catch the ratchet wheel.

[0014] Optionally, a bidirectional threaded telescopic structure is provided in the middle of the fixing rod, and the length of the fixing rod can be adjusted through the bidirectional threaded telescopic structure.

[0015] Optionally, a plurality of the receiving grooves are arranged side by side on the upper side of the support assembly.

[0016] Optionally, the traveling assembly includes a plurality of lockable universal wheels.

[0017] Optionally, an inclined portion is provided at the rear end of the support plate. The upper surface of the inclined portion inclines downward relative to the support plate, and the flap is hinged to the rear end of the inclined portion through a hinge.

[0018] Optionally, the connecting rod includes two connecting rod bodies and a telescopic sleeve. The two connecting rod bodies are slidably inserted into the telescopic sleeve, and a set screw is threadedly connected to the tube wall of the telescopic sleeve.

[0019] The present invention provides a ground free movement device for a hollow long-endurance unmanned aerial vehicle platform, and its beneficial effects are as follows:

[0020] 1. The device connects three of the moving structures through three telescopic connecting rods to form a triangular structure, which is adaptable to various models of unmanned aerial vehicles. It is convenient to fix the tires of the unmanned aerial vehicle on the moving structure through the cooperation of the support assembly and the fixing assembly, thereby realizing the free movement of the unmanned aerial vehicle on the ground;

[0021] 2. Since the device adopts three identical moving structures connected into one body through three telescopic connecting rods, functionally, the device has a front-wheel moving structure and two main-wheel moving structures. From the perspective of generalization, the front-wheel moving structure and the main-wheel moving structure are the same component and have good interchangeability;

[0022] 3. The device is convenient for assembly, disassembly, transfer and transportation.

[0023] Other features and advantages of the present invention will be described in detail in the following specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By describing the exemplary embodiments of the present invention in more detail in conjunction with the drawings, the above and other objects, features, and advantages of the present invention will become more apparent. Among them, in the exemplary embodiments of the present invention, the same reference numerals generally represent the same components.

[0025] Figure 1 The overall structural schematic diagram of a ground free-moving device of a medium-altitude long-endurance unmanned aerial vehicle platform according to an embodiment of the present invention is shown.

[0026] Figure 2 The schematic diagram when a ground free-moving device of a medium-altitude long-endurance unmanned aerial vehicle platform according to an embodiment of the present invention is in use is shown.

[0027] Figure 3 The three-dimensional structural schematic diagram of a moving structure of a ground free-moving device of a medium-altitude long-endurance unmanned aerial vehicle platform according to an embodiment of the present invention is shown.

[0028] Figure 4 The front view structural schematic diagram of a moving structure of a ground free-moving device of a medium-altitude long-endurance unmanned aerial vehicle platform according to an embodiment of the present invention is shown.

[0029] Figure 5 The top view structural schematic diagram of a moving structure of a ground free-moving device of a medium-altitude long-endurance unmanned aerial vehicle platform according to an embodiment of the present invention is shown.

[0030] Description of the reference numerals:

[0031] 1. Moving structure; 2. Support assembly; 3. Limiting part; 4. Flap; 5. Fixing assembly; 6. Connecting lug; 7. Traveling assembly; 8. Connecting rod; 9. Support plate; 10. Fixed rod; 11. Limiting rod; 12. Accommodating groove; 13. Rotating shaft; 14. Ratchet; 15. Pawl; 16. Inclined part; 17. Hinge; 18. Tire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0033] The present invention provides a ground free-moving device for a medium-altitude long-endurance unmanned aerial vehicle platform, and the device includes:

[0034] Three moving structures. The moving structure includes a support component. A convex limiting portion is provided on the upper side of the front end of the support component. A flap is hinged to the rear end of the support component. A fixing component is rotatably connected to the middle of the support component. The fixing component can cooperate with the limiting portion to form a tire limiting groove. Connecting lugs are provided at the front end and both sides of the support component. A traveling component is provided on the lower side of the support component;

[0035] Three connecting rods. The lengths of the three connecting rods are adjustable. The ends of the three connecting rods can be hinged to the connecting lugs to connect the three moving structures to form a triangular structure. The three moving structures are located at the vertices of the triangular structure.

[0036] Specifically, the device is formed by connecting three identical moving structures through connecting rods. Each moving structure includes a support component, a fixing component on the support component, and a traveling component. Functionally, the device includes a front-wheel moving structure and two main-wheel moving structures. From the perspective of generalization, the front-wheel moving structure and the main-wheel moving structure are the same component and have interchangeability. In addition, by adjusting the length of the connecting rod, the device can be applicable to unmanned aerial vehicle platforms of different models and different wheelbases; the flap is hinged to the rear end of the support component. The rear end of the flap can be tilted to the ground to facilitate the movement of the tire of the unmanned aerial vehicle platform onto the support component. When the tire moves onto the support component, the limiting portion can limit the front end of the tire. At the same time, rotate the fixing component so that the fixing component also protrudes above the upper surface of the support component and limits the rear end of the tire. At this time, the tire is in the tire limiting groove, realizing the fixation of the tire on the moving structure; the traveling component can be structures such as wheels and rollers, facilitating the free movement of the device on the ground.

[0037] Optionally, the support component includes a support plate, and the limiting portion is a triangular protrusion provided at the front end of the support plate.

[0038] Specifically, the triangular protrusion cooperates with the rotated fixing component to form an inverted trapezoidal tire limiting groove on the upper side of the support component to limit the tire of the unmanned aerial vehicle platform.

[0039] Optionally, the fixing component includes two fixing rods and a limiting rod. One ends of the two fixing rods are respectively connected to both ends of the limiting rod to form a U-shaped structure. The other end of at least one fixing rod is connected to the middle of the support component through a rotation control mechanism.

[0040] Specifically, by rotating the fixing rod, the limiting rod can be raised above the support component to limit the rear end of the tire of the unmanned aerial vehicle platform.

[0041] Optionally, a receiving groove capable of receiving the limiting rod is provided on the upper side of the support component.

[0042] Specifically, when the fixing component is retracted, the limiting rod can be received in the receiving groove, and the limiting rod does not protrude from the upper surface of the supporting component, so as to avoid affecting the movement of the tire on the upper surface of the supporting component.

[0043] Optionally, the rotation control mechanism:

[0044] A rotating shaft is arranged on the supporting component;

[0045] A ratchet wheel is rotatably sleeved on the rotating shaft, and at least one fixing rod is connected to the ratchet wheel;

[0046] A pawl is movably arranged on one side of the ratchet wheel, and an elastic member is arranged on one side of the pawl. The elastic member applies an elastic force to the pawl to make the pawl catch the ratchet wheel.

[0047] Specifically, the ratchet wheel and the pawl with an elastic member form a ratchet assembly. Through the ratchet assembly, the limiting of the fixing rod after rotation can be realized, the fixing rod is fixed at the rear side of the tire, and at the same time, the tire is limited. If the fixing rod needs to be unlocked, the pawl can be pulled to overcome the elastic force of the elastic member, release the ratchet wheel, and then the fixing rod can be rotated to put the limiting rod back into the receiving groove. At this time, the flap can be opened, and the drone platform can be moved from the supporting component to the ground; a cover plate can also be provided to cover the ratchet assembly to protect the ratchet assembly.

[0048] Optionally, a bidirectional threaded telescopic structure is arranged in the middle of the fixing rod, and the length of the fixing rod can be adjusted through the bidirectional threaded telescopic structure.

[0049] Specifically, the fixing rod includes two fixing rod bodies and a bidirectional threaded sleeve. The two fixing rod bodies are respectively threadedly connected to both ends of the bidirectional threaded sleeve. When the bidirectional threaded sleeve is rotated, the length of the fixing rod can be adjusted to adapt to the tires of different models of drone platforms.

[0050] Optionally, a plurality of receiving grooves are arranged side by side on the upper side of the supporting component.

[0051] Specifically, the arrangement of the plurality of receiving grooves can cooperate with the fixing rod with adjustable length, and there is no need to repeatedly adjust the length of the fixing rod.

[0052] Optionally, the walking component includes a plurality of lockable universal wheels.

[0053] Specifically, the arrangement of the lockable universal wheels enables the device to be fixed on the ground or move freely 360° on the ground.

[0054] Optionally, an inclined portion is arranged at the rear end of the support plate, the upper surface of the inclined portion inclines downward relative to the support plate, and the flap is hinged to the rear end of the inclined portion through a hinge.

[0055] Specifically, the inclined part is arranged to facilitate the movement of the UAV platform onto the support plate. The flap can be turned to contact the ground or folded up.

[0056] Optionally, the connecting rod includes two connecting rod bodies and a telescopic sleeve. The two connecting rod bodies are slidably inserted into the telescopic sleeve, and a set screw is threadedly connected to the tube wall of the telescopic sleeve.

[0057] Specifically, the length of the connecting rod can be adjusted by sliding the two connecting rod bodies relative to the telescopic sleeve, which is applicable to UAV platforms of various models and wheelbases. Tightening the set screw can relatively fix the connecting rod bodies and the telescopic sleeve to stop the length adjustment of the connecting rod and ensure the stability of the device.

[0058] Embodiment

[0059] As Figures 1 to 5 shown, the present invention provides a ground free movement device for a hollow long endurance UAV platform, and the device includes:

[0060] Three moving structures 1. The moving structure 1 includes a support assembly 2. A convex limiting part 3 is arranged on the upper side of the front end of the support assembly 2. A flap 4 is hinged to the rear end of the support assembly 2. A fixing assembly 5 is rotatably connected to the middle of the support assembly 2. The fixing assembly 5 can cooperate with the limiting part 3 to form a tire limiting groove. Connecting lugs 6 are arranged at the front end and both sides of the support assembly 2. A traveling assembly 7 is arranged on the lower side of the support assembly 2;

[0061] Three connecting rods 8. The lengths of the three connecting rods 8 are adjustable. The ends of the three connecting rods 8 can be hinged to the connecting lugs 6 to connect the three moving structures 1 to form a triangular structure, and the three moving structures 1 are located at the vertices of the triangular structure.

[0062] In this embodiment, the support assembly 2 includes a support plate 9, and the limiting part 3 is a triangular protrusion arranged at the front end of the support plate 9.

[0063] In this embodiment, the fixing assembly 5 includes two fixing rods 10 and a limiting rod 11. One ends of the two fixing rods 10 are respectively connected to both ends of the limiting rod 11 to form a U-shaped structure. The other end of at least one fixing rod 10 is connected to the middle of the support assembly 2 through a rotation control mechanism.

[0064] In this embodiment, a receiving groove 12 capable of receiving the limiting rod 11 is arranged on the upper side of the support assembly 2.

[0065] In this embodiment, the rotation control mechanism:

[0066] A rotating shaft 13, arranged on the support assembly 2;

[0067] The ratchet wheel 14 is rotatably sleeved on the rotating shaft 13, and at least one fixing rod 10 is connected to the ratchet wheel 14;

[0068] The pawl 15 is movably arranged on one side of the ratchet wheel 14. An elastic member is arranged on one side of the pawl 15, and the elastic member applies an elastic force to the pawl 15 to make the pawl 15 latch onto the ratchet wheel 14.

[0069] In this embodiment, a bidirectional threaded telescopic structure is arranged in the middle of the fixing rod 10, and the length of the fixing rod 10 can be adjusted through the bidirectional threaded telescopic structure.

[0070] In this embodiment, a plurality of receiving grooves 12 are arranged side by side on the upper side of the support assembly 2.

[0071] In this embodiment, the traveling assembly 7 includes a plurality of locking universal wheels.

[0072] In this embodiment, an inclined portion 16 is arranged at the rear end of the support plate 9. The upper surface of the inclined portion 16 inclines downward relative to the support plate 9, and the flap 4 is hinged to the rear end of the inclined portion 16 through a hinge 17.

[0073] In this embodiment, the connecting rod 8 includes two connecting rod bodies and a telescopic sleeve. The two connecting rod bodies are slidably inserted into the telescopic sleeve, and a set screw is threadedly connected to the tube wall of the telescopic sleeve.

[0074] In summary, when the ground free-moving device for the hollow long-endurance UAV platform provided by the present invention is in use, first place the device on a flat ground, adjust the length of the connecting rod 8 to match the distance between the three tires 18 of the UAV; lock the brakes of the locking universal wheels to fix the device on the ground, and push the UAV platform along the flap 4 onto the moving structure; after the tires 18 of the UAV are in place, rotate the limiting rods 11 on the three moving structures out of the receiving grooves 12 through the rotation control mechanism, and fix the tires 18 so that the tires 18 and the moving structure do not move relative to each other; the UAV platform can be freely moved on the ground by unlocking and moving the locking universal wheels.

[0075] When it is necessary to place the UAV platform from the device onto the ground, operate the rotation control mechanism, rotate the fixing rod 10 and the limiting rod 11, retract the limiting rod 11 into the receiving groove 12, open the flap 4, make the rear end of the flap 4 contact the ground, and slowly push the UAV platform onto the ground.

[0076] The above have described the embodiments of the present invention. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments.

Claims

1. A ground free-moving device for a hollow long-endurance unmanned aerial vehicle platform, characterized in that The device includes: Three moving structures, each moving structure includes a support assembly, a raised limiting portion is provided on the upper side of the front end of the support assembly, a flap is hinged to the rear end of the support assembly, a fixing assembly is rotatably connected to the middle of the support assembly, the fixing assembly can cooperate with the limiting portion to form a tire limiting groove, connection lugs are provided at the front end and both sides of the support assembly, and a traveling assembly is provided on the lower side of the support assembly; Three connecting rods, the lengths of the three connecting rods are adjustable, the ends of the three connecting rods can be hinged to the connection lugs to connect the three moving structures to form a triangular structure, and the three moving structures are at the vertices of the triangular structure; The fixing assembly includes two fixing rods and a limiting rod, one ends of the two fixing rods are respectively connected to both ends of the limiting rod to form a U-shaped structure, and the other end of at least one fixing rod is connected to the middle of the support assembly through a rotation control mechanism; The support assembly includes a support plate, and the limiting portion is a triangular protrusion provided at the front end of the support plate; The rotation control mechanism: A rotating shaft, provided on the support assembly; A ratchet wheel, rotatably sleeved on the rotating shaft, and at least one fixing rod is connected to the ratchet wheel; A pawl, movably arranged on one side of the ratchet wheel, an elastic member is provided on one side of the pawl, and the elastic member applies an elastic force to the pawl to make the pawl catch the ratchet wheel.

2. The ground free movement device of the hollow long-endurance unmanned aerial vehicle platform according to claim 1, characterized in that A receiving groove capable of accommodating the limiting rod is provided on the upper side of the support assembly.

3. The ground free movement device of the long-endurance unmanned aerial vehicle platform with a hollow structure according to claim 2, characterized in that, A bidirectional threaded telescopic structure is provided in the middle of the fixing rod, and the length of the fixing rod can be adjusted through the bidirectional threaded telescopic structure.

4. The ground free movement device of the hollow long-endurance UAV platform according to claim 3, characterized in that, A plurality of the receiving grooves are arranged side by side on the upper side of the support assembly.

5. The ground free movement device of the hollow long-endurance unmanned aerial vehicle platform according to claim 1, wherein The traveling assembly includes a plurality of locking universal wheels.

6. The ground free movement device of the hollow long-endurance unmanned aerial vehicle platform according to claim 1, characterized in that, An inclined portion is provided at the rear end of the support plate, the upper surface of the inclined portion inclines towards the lower side of the support plate, and the flap is hinged to the rear end of the inclined portion through a hinge.

7. The ground free movement device of the hollow long-endurance unmanned aerial vehicle platform according to claim 1, characterized in that The connecting rod includes two connecting rod bodies and a telescopic sleeve, the two connecting rod bodies slide through the telescopic sleeve, and a set screw is threadedly connected to the tube wall of the telescopic sleeve.

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