Universal storage foot stool for heavy-load unmanned aerial vehicle

Abstract

The invention discloses a universal storage foot stool for a heavy-load unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicles, the universal storage foot stool comprises two fast-assembly butt joint plates and a connecting frame arranged between the two fast-assembly butt joint plates, the fast-assembly butt joint plates are detachably fixed through the connecting frame, and two foot stools distributed in a splayed shape are arranged at the bottom of the connecting frame. The upper end of the foot stool is hinged to the connecting frame, an electric push rod capable of driving the lower end of the foot stool to swing around the hinged position of the upper end is arranged between the foot stool and the fast-assembly butt joint plate, and the electric push rod is connected with a controller. And a limiting structure capable of limiting the swing angle of the foot stool to enable the included angle alpha between the swing support axis of the foot stool and the vertical line of the bottom surface to be an acute angle is arranged between the foot stool and the connecting frame. The foot stool has the advantages of being high in adaptability, capable of bearing goods with larger size and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of unmanned aerial vehicles, and relates to a tripod for an unmanned aerial vehicle, and in particular to a universal storage tripod for a large-load unmanned aerial vehicle. Background Art

[0002] The UAV tripod is an important accessory in the UAV system, also known as the landing gear. When the UAV is parked or landed, the tripod can support the weight of the entire body, ensuring that the UAV is stable and does not fall over. It can reduce the impact of the UAV with the ground when landing, thereby protecting the body and key components such as propellers from damage. In the prior art, in order to reduce weight and reduce transportation costs, the tripod is usually designed to be shorter, which makes it difficult to carry large volumes of cargo during actual transportation. It is necessary to increase the height of the tripod, and the additional height of the tripod has the problem of cumbersome loading and unloading. To this end, people have conducted long-term explorations and proposed various solutions.

[0003] For example, a Chinese patent document discloses a quick-detachable UAV tripod assembly [application number: 202320130141.X], which includes four sets of mounting bases connected to the fuselage and a tripod detachably plugged into the mounting base; the tripod is provided with a rotation locking mechanism, which includes a knob and a connecting shaft, the connecting shaft is arranged in the tripod and can be rotated and retracted elastically, the central axis of the connecting shaft intersects the central axis of the tripod vertically, the knob is connected to the end of the connecting shaft, and the peripheral wall of the tripod is provided with a positioning groove, and the knob is stretched and rotated so that the knob is locked with the positioning groove. This solution can realize the rapid disassembly and installation of the tripod.

[0004] Although the above scheme has a good quick installation and disassembly effect, the quick-disassembly design is only for one leg, and the overall structure is not very applicable; and the shape design is fixed, and the angle and spacing between the legs cannot be adjusted, which cannot meet the transportation needs of large goods and goods of different shapes. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned problems and provide a universal storage tripod for large-load UAVs with convenient overall installation and disassembly and adjustable tripod spacing.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a universal storage tripod for large-load unmanned aerial vehicles, comprising two quick-release docking plates and a connecting frame arranged between the two quick-release docking plates, the quick-release docking plates being detachably fixed by the connecting frame, two tripods distributed in an eight-shaped shape are arranged at the bottom of the connecting frame, the upper ends of the tripods are hingedly connected to the connecting frame, an electric push rod capable of driving the lower end of the tripod to swing around the upper end hinge is arranged between the tripod and the quick-release docking plates, the electric push rod is connected to a controller, and a limiting structure capable of limiting the swing angle of the tripod is arranged between the tripod and the connecting frame so that the angle α between the tripod swing support axis and the vertical line of the bottom surface is an acute angle.

[0007] The overall structure of the bracket can be quickly disassembled and assembled through the detachable and fixed quick-release docking plate. The tripod distributed in an eight-shaped shape is hingedly connected to the connecting frame, and the electric push rod is connected to the controller. The tripod can be automatically stored and adjusted through the controller, and a limiting structure is provided to ensure that the angle α between the swing support axis and the vertical line of the bottom surface is an acute angle, thereby ensuring the stability of the tripod support.

[0008] In the above-mentioned universal storage tripod for large-load UAVs, the connecting frame includes two symmetrically arranged transverse tubes, the two ends of the transverse tubes are respectively fixed to the proximal ends of the two quick-release docking plates through a first detachable structure, and longitudinal tubes are provided below the two ends of the two transverse tubes, the longitudinal tubes are respectively fixed to the transverse tubes through a second detachable structure, and the first detachable structure is in close contact with the second detachable structure, and the upper end of the tripod is hingedly connected to the longitudinal tubes. The square-like structure formed by connecting two transverse tubes and two longitudinal tubes can adjust the length of the transverse tube according to the width of the UAV to accommodate UAVs of different sizes; and can ensure the stability of the connecting frame while providing sufficient structural strength, and leave enough space for the transportation of large-volume cargo.

[0009] In the above-mentioned universal storage tripod for large-load UAVs, the first detachable structure includes a T-shaped connector, the base end of the T-shaped connector is fixed to the quick-release docking plate by bolts, and the sleeve of the T-shaped connector is provided with N expansion slots evenly distributed along the circumference and radially penetrating the side wall of the sleeve, N ≥ 1, and first fixing ears are provided on both sides of each expansion slot, the first fixing ears are connected to the sleeve as a whole, and the two first fixing ears are fixed by at least one bolt, and the end of the cross tube is inserted into the sleeve. The design of the T-shaped connector makes the installation and disassembly of the cross tube simple and easy. It is only necessary to insert the end of the cross tube into the sleeve and fix it with the first fixing ear and bolts, without the need for complicated operating steps. And because the sleeve is provided with a plurality of expansion slots evenly distributed along the circumference, it can adapt to cross tubes of different sizes and specifications, thereby improving the versatility and adaptability of the storage tripod.

[0010] In the above-mentioned universal storage tripod for large-load UAV, the second detachable structure includes two connecting rings sleeved on the longitudinal tube, the connecting rings are fixed to the longitudinal tube by bolts passing through the connecting rings, each connecting ring is provided with a vertical semicircular tube, the lower end of the vertical semicircular tube is connected to the connecting ring, and the upper end is connected to the horizontal semicircular tube, the connecting ring, the vertical semicircular tube and the horizontal semicircular tube are connected as a whole, the horizontal semicircular tube is attached to the cross bar, and the upper side wall of each horizontal semicircular tube is provided with a second fixing ear connected as a whole, the two horizontal semicircular tubes are fixed by at least two bolts passing through the second fixing ear, and a triangular reinforcing rib is provided between the lower side wall of each horizontal semicircular tube and the vertical semicircular tube, and the two triangular reinforcing ribs are fixed by at least one bolt. The design of connecting rings, vertical semicircular tubes and horizontal semicircular tubes being connected as a whole forms a stable frame, which can effectively disperse and bear the load of the large-load UAV, and the setting of the triangular reinforcing ribs further enhances the stability of the structure. In addition, the various components of the second detachable structure are connected and fixed by bolts, so that the installation and disassembly process becomes simple and easy.

[0011] In the above-mentioned universal storage tripod for large-load unmanned aerial vehicles, the tripod includes two symmetrically arranged side tubes, a longitudinally arranged bottom tube is provided at the bottom of the two side tubes, the lower end of the side tube is connected to the bottom tube through a T-shaped detachable joint, a landing buffer structure is provided on the bottom tube, the upper ends of the two side tubes are respectively hinged to the two ends of the longitudinal tube through hinges, a longitudinally arranged push rod fixing tube is provided near the middle of the two side tubes, the two ends of the push rod fixing tube are respectively detachably connected to the side tubes on both sides through T-shaped quick connectors, the lower end of the electric push rod is hinged to the lower push rod fixing seat, the lower push rod fixing seat includes a clamp, which is detachably fixed to the middle of the push rod fixing tube, the upper end of the electric push rod is hinged to the upper push rod fixing seat, and the upper push rod fixing seat is fixed to the quick-release docking plate by five U-shaped bolts. The tripod is composed of two symmetrical side tubes and a longitudinal bottom tube. This structural design enhances the stability and load-bearing capacity of the tripod. A landing buffer structure is provided on the bottom tube, which can play a buffering role when the tripod contacts the ground, reduce impact and vibration, and protect the drone and cargo from damage. The electric push rod is connected to the tripod and the quick-release docking plate through the upper push rod fixing seat and the lower push rod fixing seat, so that the lower end of the tripod can be driven to swing around the upper end hinge, thereby adjusting the angle and height of the tripod to meet different usage requirements.

[0012] In the above-mentioned universal storage tripod for large-load UAV, the articulator includes a longitudinal tube connector detachably connected to the longitudinal tube, a side tube connector detachably connected to the side tube is hinged below the longitudinal tube connector, a hinged positioning block is provided below the longitudinal tube connector, the U-shaped clamp seat of the side tube connector is clamped on the hinged positioning block and hinged through the hinge shaft, the swing axis of the side tube connector is perpendicular to the central axis of the side tube, and a limiting structure is provided between the side tube connector and the longitudinal tube connector to limit the rotation angle of the side tube connector so that the angle α between the swing support axis of the tripod and the vertical line of the bottom surface is an acute angle. The longitudinal tube connector and the side tube connector in the articulator are both detachably connected to their respective pipes, which is easy to disassemble and install. The swing axis of the side tube connector is perpendicular to the central axis of the side tube to ensure the stability of the swing process and avoid the generation of excess stress. The limiting structure ensures that the angle α between the swing support axis of the tripod and the vertical line of the bottom surface is always an acute angle, thereby preventing excessive swinging from causing other components to be damaged when they fall to the ground.

[0013] In the above-mentioned universal storage tripod for large-load UAV, the limiting structure includes a stopper provided on the hinged positioning block and located on the inner side of the connecting frame, and the stopper is connected to the hinged positioning block and the longitudinal tube connecting piece as a whole; A first convex arc-shaped anti-collision portion is provided on the outer side of the lower end of the stopper, and a first concave arc-shaped anti-collision portion matching the first convex arc-shaped anti-collision portion is provided between the side tube connector and the inner side of the U-shaped clamp seat; The longitudinal tube connector is provided with a second convex arc anti-collision portion located between the hinged positioning block and the longitudinal tube connector, and a second concave arc anti-collision portion matching the second convex arc anti-collision portion is provided between the side tube connector and the outer side of the U-shaped clamp seat. The first convex arc anti-collision portion on the outer side of the lower end of the block matches the first concave arc anti-collision portion on the inner side of the side tube connector, and the second convex arc anti-collision portion on the longitudinal tube connector matches the second concave arc anti-collision portion on the outer side of the side tube connector. This precise matching design disperses the impact force received by the tripod during the swinging and limiting process to the greatest extent, protects the tripod structure, and extends the service life of the tripod.

[0014] In the above-mentioned universal storage tripod for large-load UAV, the first detachable structure, the second detachable structure, the T-shaped detachable joint, the hinge, the lower push rod fixing seat and the upper push rod fixing seat are aluminum alloy material connectors. Aluminum alloy material has high strength and hardness, can effectively resist external forces and impacts, and ensure the stability and reliability of the connector in complex environments. In addition, aluminum alloy material has good corrosion resistance, which can extend the service life of the connector.

[0015] In the above-mentioned universal storage tripod for large-load UAV, the transverse tube, longitudinal tube, bottom tube, side tube and push rod fixing tube are carbon fiber tubes. Carbon fiber tubes have extremely low density and high strength. The transverse tube, longitudinal tube, bottom tube, side tube and push rod fixing tube made of carbon fiber tubes can significantly reduce the weight of the entire storage tripod, which helps to improve the flight performance and endurance of the UAV. In addition, the carbon fiber tube has good thermal stability and good corrosion resistance to many chemical substances, and can maintain its performance in various harsh environments and extend the service life of the storage tripod.

[0016] In the above-mentioned universal storage tripod for large-load UAVs, the controller includes a main control module, the main control module is connected with a charging port, a rechargeable battery module, a height detection module, a motor control module, and a wireless communication module, the wireless communication module includes any one or more of a Bluetooth unit, a wifi unit, a 4G unit, or a 5G unit, and the controller is fixed on the inner side of the quick-release docking plate to communicate wirelessly with the interactive remote control; The interactive remote control is used to input threshold 1 and threshold 2 to the main control module. When the flight altitude is greater than threshold 1, the main control module controls the electric push rod through the motor control module to retract the tripod. When the distance from the ground is less than threshold 2, the tripod is automatically retracted. Manual input of threshold 1 and threshold 2 can be adjusted according to different terrains. The motor is controlled by the main control module, which reduces the steps of manual operation, improves the automation level of the drone, and ensures that the drone can land safely when landing or approaching the ground to avoid damage.

[0017] Compared with the existing technology, the advantages of the present invention are: 1. The tripod spacing is adjustable to adapt to more diverse working conditions. 2. It has a longer tripod and can carry larger volumes of cargo. 3. It is equipped with a controller to achieve automatic adjustment and automatic lifting and retracting of the tripod, with low manual operation requirements. 4. Multiple connecting parts have a quick-release structure to achieve rapid disassembly and assembly of the whole. 5. It is equipped with a unique stress dispersion and buffer structure, which is not easy to be damaged and has a long service life. 6. It adopts a lightweight, high-strength and corrosion-resistant main material, which ensures the structural strength while having a high degree of lightweight, which is conducive to the flight transportation of drones. 7. It has strong applicability and can be used for original parts of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the folding structure of the tripod provided by the present invention; Figure 2 It is a schematic diagram of the unfolded structure of the tripod provided by the present invention; Figure 3 It is a schematic diagram of the structure of the connecting frame provided by the present invention; Figure 4 It is a schematic diagram of the detachable structure provided by the present invention; Figure 5It is a schematic diagram of the structure of the hinge provided by the present invention; Figure 6 It is a schematic diagram of the controller circuit provided by the present invention.

[0019] In the figure, the quick-install docking plate 1, the connecting frame 2, the first detachable structure 21, the T-shaped connecting piece 211, the sleeve 212, the telescopic groove 213, the first fixing ear 214, the second detachable structure 22, the connecting ring 221, the vertical semicircular tube 222, the horizontal semicircular tube 223, the second fixing ear 224, the triangular reinforcing rib 225, the horizontal tube 23, the longitudinal tube 24, the tripod 3, the side tube 31, the bottom tube 32, the landing buffer structure 321, the push rod fixing tube 33, the hinge 34, the longitudinal tube connecting piece 341, the side tube connecting piece 342, the hinge fixing piece Position block 343, U-shaped clamp seat 344, T-shaped detachable joint 35, T-shaped quick joint 36, limiting structure 37, first convex arc anti-collision part 371, second convex arc anti-collision part 372, first concave arc anti-collision part 373, second concave arc anti-collision part 374, stopper 375, electric push rod 4, lower push rod fixing seat 41, upper push rod fixing seat 42, controller 5, main control module 51, charging port 52, rechargeable battery module 53, height detection module 54, motor control module 55, wireless communication module 56, interactive remote control 57. DETAILED DESCRIPTION

[0020] like Figures 1 to 6 As shown, a universal storage tripod for a large-load UAV comprises two quick-release docking plates 1 and a connecting frame 2 arranged between the two quick-release docking plates 1, the quick-release docking plates 1 are detachably fixed by the connecting frame 2, two tripods 3 distributed in an eight-shaped shape are arranged at the bottom of the connecting frame 2, the upper ends of the tripods 3 are hingedly connected to the connecting frame 2, an electric push rod 4 capable of driving the lower end of the tripod 3 to swing around the upper end hinge is arranged between the tripod 3 and the quick-release docking plates 1, the electric push rod 4 is connected to a controller 5, and a limiting structure 37 capable of limiting the swing angle of the tripod 3 so that the angle α between the swing support axis of the tripod 3 and the vertical line of the bottom surface is an acute angle is arranged between the tripod 3 and the connecting frame 2.

[0021] In this embodiment, the two quick-release docking plates 1 are provided with a plurality of fixing holes, which play the role of connecting the drone, the tripod 3 distributed in an eight-shaped manner is hingedly connected to the connecting frame 2, and the controller 5 controls the electric push rod 4 to push the tripod 3 to swing, so that the tripod 3 can be freely expanded or retracted, so as to achieve the effect of freely adjusting the spacing or angle of the tripod 3. In addition, there is a raised limiting structure 37, which can prevent the tripod 3 from excessively swinging and causing damage to its own structure when the controller 5 or the electric push rod 4 fails.

[0022] More specifically, the connecting frame 2 includes two symmetrically arranged transverse tubes 23, both ends of which are fixed to the proximal ends of the two quick-release docking plates 1 through a first detachable structure 21, and longitudinal tubes 24 are provided below both ends of the two transverse tubes 23. The longitudinal tubes 24 are fixed to the transverse tubes 23 through a second detachable structure 22, and the first detachable structure 21 is tightly attached to the second detachable structure 22. The upper end of the tripod 3 is hingedly connected to the longitudinal tubes 24.

[0023] like Figure 3 As shown, the first detachable structure 21 includes a T-shaped connector 211, the base end of the T-shaped connector 211 is fixed to the quick-release docking plate 1 by bolts, and the sleeve 212 of the T-shaped connector 211 is provided with two expansion grooves 213 that are evenly distributed along the circumferential direction and radially penetrate the side wall of the sleeve 212, and each expansion groove 213 is provided with a first fixing ear 214 on both sides, the first fixing ear 214 is connected to the sleeve 212 as a whole, and the two first fixing ears 214 are fixed by two bolts, and the end of the cross tube 23 is inserted in the sleeve 212.

[0024] In this embodiment, a telescopic groove 213 is provided on the sleeve 212, and the first fixing ear 214 is arranged on both sides of the telescopic groove 213. This connection method not only has the effect of convenient disassembly, but also allows the sleeve 212 to be compatible with cross tubes 23 of different sizes, thereby improving the structural compatibility.

[0025] More specifically, the second detachable structure 22 includes two connecting rings 221 sleeved on the longitudinal tube 24, the connecting rings 221 are fixed to the longitudinal tube 24 by bolts passing through the connecting rings 221, each connecting ring 221 is provided with a vertical semicircular tube 222, the lower end of the vertical semicircular tube 222 is connected to the connecting ring 221, and the upper end is connected to the horizontal semicircular tube 223, the connecting ring 221, the vertical semicircular tube 222 and the horizontal semicircular tube 223 are connected as a whole, the horizontal semicircular tube 223 is attached to the cross bar 23, and each horizontal semicircular tube 223 has a second fixing ear 224 integrally connected thereto on the upper side wall, the two horizontal semicircular tubes 223 are fixed by at least two bolts passing through the second fixing ear 224, and a triangular reinforcing rib 225 is provided between the lower side wall of each horizontal semicircular tube 223 and the vertical semicircular tube 222, and the two triangular reinforcing ribs 225 are fixed by two bolts.

[0026] In this embodiment, the connecting ring 221, the vertical semicircular tube 222 and the horizontal semicircular tube 223 are connected as one. In such a connection with a relatively complex shape, stress concentration is prone to cause damage. The integrated design can disperse the stress to the greatest extent, and at the same time, it ensures the connection strength and the life of the connection structure, and also provides convenient conditions for the overall lightweight structure. More specifically, the tripod 3 includes two symmetrically arranged side tubes 31, and a longitudinally arranged bottom tube 32 is provided at the bottom of the two side tubes 31. The lower end of the side tube 31 is connected to the bottom tube 32 through a T-shaped detachable joint 35, and a landing buffer structure 321 is provided on the bottom tube 32. The upper ends of the two side tubes 31 are hinged to the two ends of the longitudinal tube 24 through hinges 34 respectively. A longitudinally arranged push rod fixing tube 33 is provided near the middle of the two side tubes 31. The two ends of the push rod fixing tube 33 are detachably connected to the side tubes 31 on both sides through T-shaped quick connectors 36 respectively. The lower end of the electric push rod 4 is hinged to the lower push rod fixing seat 41, and the lower push rod fixing seat 41 is detachably fixed to the middle of the push rod fixing tube 33. The upper end of the electric push rod 4 is hinged to the upper push rod fixing seat 42, and the upper push rod fixing seat 42 is fixed to the quick-release docking plate 1 through five U-shaped bolts.

[0027] In this embodiment, when the electric push rod 4 is extended to the longest, the distance between the two legs is the shortest, and the height of the cargo that can be accommodated is the largest; when the electric push rod 4 is retracted to the shortest, the distance between the two legs is the largest, and the width of the cargo that can be accommodated is the largest. In addition, the electric push rod 4 has a self-locking function, and the drone can be stabilized by the self-locking force of the motor after landing on the ground. In addition, since a large impact force will be generated at the connection between the upper push rod fixing seat 42 and the quick-release docking plate 1 when the drone lands from the air, in order to improve the structural connection strength, five bolts arranged in a U shape are set on the upper push rod fixing seat 42. The special bolt arrangement shape can effectively improve the tensile and compressive performance during landing.

[0028] like Figure 4 As shown, the articulator 34 includes a longitudinal tube connector 341 detachably connected to the longitudinal tube 24, a side tube connector 342 detachably connected to the side tube 31 is hinged below the longitudinal tube connector 341, a hinged positioning block 343 is provided below the longitudinal tube connector 341, a U-shaped clamp seat 344 of the side tube connector 342 is clamped on the hinged positioning block 343 and hinged through a hinge shaft, the swing axis of the side tube connector 342 is perpendicular to the central axis of the side tube 31, and a limiting structure 37 is provided between the side tube connector 342 and the longitudinal tube connector 341, which can limit the rotation angle of the side tube connector 342 so that the angle α between the swing support axis of the tripod 3 and the vertical line of the bottom surface is an acute angle.

[0029] More specifically, the limiting structure 37 includes a stopper 375 disposed on the hinged positioning block 343 and located on the inner side of the connecting frame 3, and the stopper 375 is integrally connected with the hinged positioning block 343 and the longitudinal tube connecting member 341; A first convex arc-shaped anti-collision portion 371 is disposed on the outer side of the lower end of the stopper 375, and a first concave arc-shaped anti-collision portion 373 matching the first convex arc-shaped anti-collision portion 371 is disposed between the side tube connector 342 and the inner side of the U-shaped clamp seat 344; A second convex arc anti-collision portion 372 is provided on the longitudinal tube connector 341 between the hinged positioning block 343 and the longitudinal tube connector 341 , and a second concave arc anti-collision portion 374 matching the second convex arc anti-collision portion 372 is provided between the side tube connector 342 and the outer side of the U-shaped clamp seat 344 .

[0030] In this embodiment, a matching first concave arc-shaped anti-collision portion 373 is provided at a position corresponding to the first convex arc-shaped anti-collision portion 371, and a matching second concave arc-shaped anti-collision portion 374 is provided at a position corresponding to the second convex arc-shaped anti-collision portion 372. When an unexpected equipment failure or external force causes the tripod 3 to be over-expanded or over-folded, a large stress will be generated at the structural abutment. Since the overall material has the purpose of lightweight, it is very easy to cause structural damage. Designing matching convex arcs and concave arcs at the corresponding mutually conflicting positions will evenly distribute this unexpected stress to the entire contact surface, thereby preventing structural damage.

[0031] More specifically, the first detachable structure 21, the second detachable structure 22, the T-shaped detachable joint 35, the hinge 34, the lower push rod fixing seat 41 and the upper push rod fixing seat 42 are connecting parts made of aluminum alloy material; the cross tube 23, the longitudinal tube 24, the bottom tube 32, the side tube 31 and the push rod fixing tube 33 are carbon fiber tubes.

[0032] In this embodiment, for the sake of lightness, the main structure adopts a material that is both light and strong. In addition, considering the extreme weather conditions, the aluminum alloy material and the carbon fiber tube have good thermal stability and good corrosion resistance, so that in special weather conditions, the present invention can still maintain excellent structural strength and can operate normally.

[0033] More specifically, the controller 5 includes a main control module 51, to which a charging port 52, a rechargeable battery module 53, a height detection module 54, a motor control module 55, and a wireless communication module 56 are connected. The wireless communication module 56 includes any one or more of a Bluetooth unit, a wifi unit, a 4G unit, or a 5G unit. The controller 5 communicates wirelessly with an interactive remote controller 57; The interactive remote controller 57 is used to input threshold 1 and threshold 2 to the main control module 51. When the flight altitude is greater than threshold 1, the main control module 51 controls the electric push rod 4 through the motor control module 55 to unfold the tripod, and automatically retracts the tripod when the distance from the ground is less than threshold 2.

[0034] The working principle of this embodiment is that when the drone is on the ground, specific threshold values ​​1 and 2 are input through the interactive remote control 57, and after the cargo is assembled, the drone drives the storage tripod to take off. When the height detection module 54 detects that the height of the drone is higher than threshold value 1, the main control module 51 autonomously controls the electric push rod 4 to retract through the motor control module 55. At this time, the tripods 3 on both sides are pulled by the electric push rod 4 and unfolded to the specified position around the hinge 34, and at this time there is a block 375 to prevent the tripod 3 from swinging excessively.

[0035] When the UAV flies to the designated position, the UAV drives the storage tripod to descend. When the height detection module 54 detects that the height of the UAV is lower than the threshold value 2, the tripods 3 on both sides are pulled by the electric push rods 4 and retracted to the designated position around the hinges 34. When the UAV lands, the landing buffer structure 321 on the bottom tube 32 contacts the ground first to prevent the UAV or cargo from being impacted.

[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0037] Although the terms such as quick-install docking plate, connecting frame, first detachable structure, T-shaped connecting piece, sleeve, telescopic slot, first fixing ear, second detachable structure, connecting ring, vertical semicircular tube, horizontal semicircular tube, second fixing ear, triangular reinforcing rib, horizontal tube, longitudinal tube, tripod, side tube, bottom tube, landing buffer structure, push rod fixing tube, hinge, longitudinal tube connector, side tube connector, hinged positioning block, U-shaped clamp seat, T-shaped detachable joint, T-shaped quick joint, limiting structure, first convex arc anti-collision part, second convex arc anti-collision part, first concave arc anti-collision part, second concave arc anti-collision part, block, electric push rod, lower push rod fixing seat, upper push rod fixing seat, controller, main control module, charging port, rechargeable battery module, height detection module, motor control module, wireless communication module, interactive remote control, etc. are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present invention, and interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A universal storage tripod for large-load UAVs, characterized in that: The invention comprises two quick-install docking plates (1) and a connecting frame (2) arranged between the two quick-install docking plates (1), wherein the quick-install docking plates (1) are detachably fixed by the connecting frame (2), two tripods (3) distributed in an eight-shaped shape are arranged at the bottom of the connecting frame (2), the upper ends of the tripods (3) are hingedly connected to the connecting frame (2), an electric push rod (4) capable of driving the lower end of the tripod (3) to swing around the upper end hinge is arranged between the tripod (3) and the quick-install docking plates (1), the electric push rod (4) is connected to a controller (5), and a limiting structure (37) capable of limiting the swing angle of the tripod (3) is arranged between the tripod (3) and the connecting frame (2) so that the angle α between the swing support axis of the tripod (3) and the vertical line of the bottom surface is an acute angle.

2. The universal storage tripod for large-load UAV according to claim 1, characterized in that: The connecting frame (2) comprises two symmetrically arranged transverse tubes (23), both ends of the transverse tubes (23) being fixed to the proximal ends of the two quick-install docking plates (1) via first detachable structures (21), longitudinal tubes (24) being provided below both ends of the two transverse tubes (23), the longitudinal tubes (24) being fixed to the transverse tubes (23) via second detachable structures (22), and the first detachable structure (21) and the second detachable structure (22) being in close contact, and the upper end of the tripod (3) being hingedly connected to the longitudinal tubes (24).

3. The universal storage tripod for large-load UAV according to claim 2, characterized in that: The first detachable structure (21) comprises a T-shaped connecting piece (211), the base end of the T-shaped connecting piece (211) being fixed to the quick-install docking plate (1) by means of bolts, the sleeve (212) of the T-shaped connecting piece (211) being provided with N telescopic grooves (213) evenly distributed in the circumferential direction and radially penetrating the side wall of the sleeve (212), N ≥ 1, each telescopic groove (213) being provided with first fixing ears (214) on both sides, the first fixing ears (214) being connected to the sleeve (212) as a whole, and the two first fixing ears (214) being fixed by means of at least one bolt, and the end of the transverse tube (23) being inserted into the sleeve (212).

4. The universal storage tripod for large-load UAV according to claim 2, characterized in that: The second detachable structure (22) comprises two connecting rings (221) sleeved on the longitudinal tube (24); the connecting rings (221) are fixed to the longitudinal tube (24) by bolts passing through the connecting rings (221); each connecting ring (221) is provided with a vertical semicircular tube (222); the lower end of the vertical semicircular tube (222) is connected to the connecting ring (221), and the upper end is connected to the horizontal semicircular tube (223); the connecting rings (221), the vertical semicircular tube (222) and the horizontal semicircular tube (223) are connected to each other. 3) connected as one body, the transverse semicircular tube (223) is fitted on the transverse bar (23), a second fixing ear (224) connected as one body is provided on the upper side wall of each transverse semicircular tube (223), the two transverse semicircular tubes (223) are fixed by at least two bolts penetrated through the second fixing ear (224), a triangular reinforcing rib (225) is provided between the lower side wall of each transverse semicircular tube (223) and the vertical semicircular tube (222), and the two triangular reinforcing ribs (225) are fixed by at least one bolt.

5. The universal storage tripod for large-load UAV according to claim 2, characterized in that: The tripod (3) comprises two symmetrically arranged side tubes (31), the bottom of the two side tubes (31) is provided with a longitudinally arranged bottom tube (32), the lower end of the side tube (31) is connected to the bottom tube (32) through a T-shaped detachable joint (35), and a landing buffer structure (321) is provided on the bottom tube (32), the upper ends of the two side tubes (31) are hinged to the two ends of the longitudinal tube (24) through hinges (34), and the near middle of the two side tubes (31) is provided with a longitudinally arranged push rod fixing tube (33 ), the two ends of the push rod fixing tube (33) are detachably connected to the side tubes (31) on both sides through T-shaped quick connectors (36), the lower end of the electric push rod (4) is hinged on the lower push rod fixing seat (41), the lower push rod fixing seat (41) is detachably fixed to the middle of the push rod fixing tube (33), the upper end of the electric push rod (4) is hinged on the upper push rod fixing seat (42), and the upper push rod fixing seat (42) is fixed to the quick-install docking plate (1) through five bolts arranged in a U shape.

6. The universal storage tripod for large-load UAV according to claim 5, characterized in that: The hinge (34) comprises a longitudinal tube connector (341) detachably connected to the longitudinal tube (24); a side tube connector (342) detachably connected to the side tube (31) is hingedly connected below the longitudinal tube connector (341); a hinged positioning block (343) is provided below the longitudinal tube connector (341); a U-shaped clamp seat (344) of the side tube connector (342) is clamped on the hinged positioning block (343) and hingedly connected via a hinge shaft; a swing axis of the side tube connector (342) is perpendicular to the central axis of the side tube (31); and a limiting structure (37) is provided between the side tube connector (342) and the longitudinal tube connector (341) and is capable of limiting the rotation angle of the side tube connector (342) so that the angle α between the swing support axis of the tripod (3) and the vertical line of the bottom surface is an acute angle.

7. The universal storage tripod for large-load UAV according to claim 6, characterized in that: The limiting structure (37) comprises a stopper (375) arranged on the hinged positioning block (343) and located on the inner side of the connecting frame (3); the stopper (375) is integrally connected to the hinged positioning block (343) and the longitudinal tube connecting piece (341).

8. The universal storage tripod for large-load UAV according to claim 7, characterized in that: A first convex arc-shaped anti-collision portion (371) is provided on the outer side of the lower end of the stopper (375), and a first concave arc-shaped anti-collision portion (373) matching the first convex arc-shaped anti-collision portion (371) is provided between the side tube connector (342) and the inner side of the U-shaped clamp seat (344); The longitudinal tube connector (341) is provided with a second convex arc-shaped anti-collision portion (372) located between the hinged positioning block (343) and the longitudinal tube connector (341), and a second concave arc-shaped anti-collision portion (374) matching the second convex arc-shaped anti-collision portion (372) is provided between the side tube connector (342) and the outer side of the U-shaped clamp seat (344).

9. The universal storage tripod for large-load UAV according to claim 5, characterized in that: The transverse tube (23), the longitudinal tube (24), the bottom tube (32), the side tube (31) and the push rod fixing tube (33) are carbon fiber tubes.

10. The universal storage tripod for large-load UAV according to any one of claims 1 to 9, characterized in that: The controller (5) comprises a main control module (51), the main control module (51) is connected to a charging port (52), a rechargeable battery module (53), a height detection module (54), a motor control module (55), and a wireless communication module (56), the wireless communication module (56) comprising any one or more of a Bluetooth unit, a WiFi unit, a 4G unit, or a 5G unit, and the controller (5) communicates wirelessly with an interactive remote control (57); The interactive remote controller (57) is used to input threshold value 1 and threshold value 2 to the main control module (51). When the flight altitude is greater than threshold value 1, the main control module (51) controls the electric push rod (4) through the motor control module (55) to unfold the tripod. When the distance from the ground is less than threshold value 2, the tripod is automatically retracted.

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