An unmanned aerial vehicle automatic centering positioning platform

Abstract

The utility model provides a kind of unmanned plane automatic centering positioning platform, it is related to unmanned plane platform technical field, including bottom support, top support, first driving device, second driving device, two-way synchronous clamping mechanism and longitudinal limiting mechanism.Top support is set on the top of bottom support for receiving unmanned plane;First driving device is connected two-way synchronous clamping mechanism, this mechanism includes double-output right-angle gear box and reciprocating motion component with positioning hook, for lateral clamping correction;Second driving device is connected longitudinal limiting mechanism by chain to drive the longitudinal movement of limiting baffle.The utility model realizes the automatic, accurate centering and stable clamping of horizontal and longitudinal position after unmanned plane landing by double-drive cooperative control, effectively eliminates landing error, improves positioning accuracy and reliability, provides stable foundation for subsequent automatic operation.

Description

Technical Field

[0001] This utility model mainly relates to the field of unmanned aerial vehicle (UAV) platform technology, specifically to an automatic centering and positioning platform for UAVs. Background Technology

[0002] Unmanned aerial vehicles (UAVs), especially multi-rotor UAVs, have been widely used in many fields such as aerial surveying and mapping, agricultural plant protection, logistics and transportation, and emergency rescue. With the increasing demand for automation, autonomous take-off and landing technology for UAVs has become one of the key links. Among them, the "UAV nest" or "landing platform," which enables UAVs to land accurately on designated platforms and achieve automatic charging, data exchange, or storage, is currently the focus of research and development.

[0003] During the autonomous landing of a drone, due to factors such as GPS positioning errors, visual guidance deviations, environmental wind disturbances, and the drone's own control precision, the actual landing position of the drone on the platform usually deviates from the theoretical center point. This deviation may cause the drone's feet to land at arbitrary positions on the platform. If this deviation is not effectively corrected and stabilized, the drone, not being fixed and centered on a mobile landing platform, is highly susceptible to tipping over and crashing due to swaying; it also makes it impossible to build an external protective shell, requiring manual assistance for centering, which is extremely inconvenient for large drones.

[0004] It should be noted that the above content falls within the scope of technical knowledge of those skilled in the art. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model: This utility model provides an automatic centering and positioning platform for unmanned aerial vehicles (UAVs) to solve the technical problems existing in the background art.

[0006] 2. Technical Solution: To achieve the above objectives, the technical solution provided by this utility model is as follows: an automatic centering and positioning platform for unmanned aerial vehicles (UAVs), comprising a bottom support, a top support, a first driving device, a second driving device, a bidirectional synchronous clamping mechanism, and a longitudinal limiting mechanism; the top support is fixedly installed above the bottom support for receiving the landing UAV; the first driving device is installed in the mounting space between the bottom support and the top support, and its output end is connected to the bidirectional synchronous clamping mechanism, which includes a dual-output right-angle gearbox and a reciprocating motion assembly connected to the two output ends of the gearbox, the reciprocating motion assembly being provided with a pair of positioning hooks that can move laterally towards or away from each other; the second driving device is located at an opposite position outside the first driving device, and its output end is connected to the longitudinal limiting mechanism via a chain, the longitudinal limiting mechanism being provided with a limiting baffle; when the UAV lands, the first driving device and the second driving device can be activated simultaneously or sequentially, respectively driving the positioning hooks and limiting baffles on both sides to move towards the center, jointly achieving the centering guidance and fixation of the UAV landing gear.

[0007] This solution provides an automatic centering and positioning platform for drones, used to achieve automatic centering and fixation of the drone after landing. The platform mainly includes a bottom support and a top support mounted on it, with the top support used to support the drone.

[0008] A first drive unit, preferably a servo motor or stepper motor, is installed in the central area between the bottom and top supports. Its output shaft is connected to a dual-output right-angle gearbox. The output shafts on both sides of the gearbox are connected to reciprocating motion components, such as ball screw pairs or synchronous belt drives, via couplings. Each reciprocating motion component is equipped with a positioning hook for hooking the UAV's landing gear. By rotating the first drive unit in both directions, the two positioning hooks can be driven to move synchronously in opposite directions laterally.

[0009] A second drive device, which can also be a servo motor or a stepper motor, is provided at the opposite position to the outside of the first drive device. The output end of this device is connected to a chain drive mechanism via a sprocket, and the top of the chain in the chain drive mechanism is connected to the longitudinal limiting mechanism.

[0010] During operation, the drone lands on the top support, at which point its position may be slightly off. After landing, the first and second drive units activate simultaneously. The first drive unit, through a dual-output right-angle gearbox and a reciprocating mechanism, moves the positioning hooks on both sides laterally inward, correcting the drone's landing gear laterally. The second drive unit, through a chain drive mechanism, moves the limiting baffles on both sides towards the center, thus longitudinally limiting the drone. Working together, the two drive units gradually adjust the drone to the center of the platform and ultimately secure it with the positioning hooks, providing a stable and accurate positioning foundation for subsequent charging, data transmission, and relocation operations.

[0011] Furthermore, the first drive device is a dual-output shaft motor, with each of the two output shafts of the motor connected to a dual-output right-angle gearbox; the dual-output right-angle gearbox is fixedly mounted on the support plate of the bottom bracket; the two output ends of each dual-output right-angle gearbox are connected to the reciprocating motion component via a coupling; the four reciprocating motion components are symmetrically arranged in a rectangular distribution and drive the positioning hook to position the UAV footrest.

[0012] Furthermore, the reciprocating motion assembly includes a concave track, a moving block, and a rotating lead screw; the concave track is fixedly mounted on the bottom support, and the rotating lead screw is rotatably mounted in its middle; the moving block and the rotating lead screw form a helical transmission pair and are slidably connected along the concave track; the positioning hook is fixedly mounted on the top of the moving block; one end of the rotating lead screw is connected to the output shaft of the double-output right-angle gearbox through a coupling.

[0013] Furthermore, the top support is provided with support columns at intervals at the bottom and connected to the bottom support at the bottom. The top support and the bottom support are connected by an aluminum alloy bracket. The top support is provided with a plurality of symmetrical receiving slots, and each receiving slot is rotatably provided with a transverse support roller.

[0014] Furthermore, the longitudinal limiting mechanism includes symmetrically arranged sliding blocks, sliding rods, connecting blocks, and limiting blocks; the top bracket is provided with a sliding rail at a corresponding position, and the sliding blocks are slidably connected to the sliding rail; the inner sides of the two symmetrically arranged sliding blocks are connected to both ends of the sliding rod; the bottom of the sliding rod is fixedly connected to the chain through the connecting block; the limiting block is provided at the end of the sliding block.

[0015] Furthermore, the limiting block is a flip-up triangular stop block with a support frame symmetrically connected to its bottom, and a traveling wheel is rotatably mounted at the end of the support frame; the platform also includes a fixedly installed inclined brace guide, and the bottom of the traveling wheel rolls in contact with the upper surface of the inclined brace guide; the inner side of the triangular stop block is connected to the sliding block through a hinge shaft; the inclined brace guide has a gradually increasing inclination slope.

[0016] Furthermore, the inclined brace guide includes an inclined brace block, the bottom of the walking wheel is slidably connected to the inclined brace block, both ends of the inclined brace block are connected to the top direct and bottom brackets, and an inclined brace plate is provided between the inclined brace block and the sliding rail.

[0017] Furthermore, a load-bearing plate is fixedly installed on the top of the top support, and several through slots are opened on the load-bearing plate to facilitate the operation of the positioning hook, the transverse support roller, and the limiting baffle.

[0018] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this utility model has the following advantages: This utility model is reasonably designed. Through the coordinated action of the bidirectional synchronous clamping mechanism and the longitudinal limiting mechanism, it achieves fully automatic and precise centering and fixation of the UAV after landing, which significantly improves positioning accuracy and operational efficiency, effectively eliminates problems caused by manual intervention and landing deviation, and provides a reliable foundation for subsequent automatic charging, data transmission and transportation operations.

[0019] The system employs a dual-output shaft motor to drive a dual-output right-angle gearbox, along with four symmetrically distributed reciprocating motion components, forming a stable and reliable rectangular clamping layout. This not only enhances the system's rigidity but also enables it to adapt to positional deviations in different directions, ensuring the smoothness of the clamping process and the stability of the UAV's attitude.

[0020] The system innovatively incorporates transverse support rollers to reduce friction, a flip-up triangular stop structure for storage when not in use, and a through-groove design for the load-bearing plate. While ensuring structural strength and integrity, it also takes into account low-resistance correction, motion avoidance, and equipment protection, thereby improving the system's adaptability, durability, and overall performance.

[0021] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the present invention after being positioned. Figure 3 This is a schematic diagram of the structure of this utility model without a load-bearing plate; Figure 4 This is a schematic diagram of the bottom support structure of this utility model; Figure 5 This is a schematic diagram of the top support structure of this utility model; Figure 6 This is a schematic diagram of the bidirectional synchronous clamping mechanism and reciprocating motion component of this utility model; Figure 7 This is a schematic diagram of the longitudinal limiting mechanism of this utility model; Figure 8 This utility model Figure 7 Enlarged schematic diagram of the structure at point A; Figure 9 This is a schematic diagram of the structure of this utility model from another angle; Figure 10This utility model Figure 9 Enlarged schematic diagram of the structure at point B; Figure label: 1. Bottom support; 2. Top support; 21. Support column; 22. Receiving groove; 23. Transverse support roller; 24. Load-bearing plate; 25. Through groove; 3. First drive device; 31. Dual-output shaft motor; 4. Second drive device; 5. Bidirectional synchronous clamping mechanism; 6. Longitudinal limiting mechanism; 61. Sliding block; 62. Sliding rod; 63. Connecting block; 64. Limiting block; 641. Triangular stop block; 642. Support frame; 643. Traveling wheel; 644. Diagonal brace guide; 645. Hinge shaft; 646. Diagonal brace block; 647. Diagonal brace plate; 65. Sliding rail; 7. Dual-output right-angle gearbox; 8. Reciprocating motion assembly; 81. Concave track; 82. Moving block; 83. Rotating screw; 9. Positioning hook; 10. Limiting baffle. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] It should be noted that the structures not described in this utility model do not involve the design points and improvement directions of this utility model, and can all adopt existing technologies known to those skilled in the art.

[0028] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0029] See attached document Figure 1-10 An automatic centering and positioning platform for unmanned aerial vehicles (UAVs) includes a bottom support 1, a top support 2, a first drive device 3, a second drive device 4, a bidirectional synchronous clamping mechanism 5, and a longitudinal limiting mechanism 6. The top support 2 is fixedly installed above the bottom support 1 to support the landing UAV. The first drive device 3 is installed in the space between the bottom support 1 and the top support 2, and its output end is connected to the bidirectional synchronous clamping mechanism 5. The bidirectional synchronous clamping mechanism 5 includes a double-output right-angle gearbox 7 and a reciprocating motion assembly 8 connected to the two output ends of the gearbox. The reciprocating motion assembly 8 is provided with a pair of positioning hooks 9 that can move laterally towards or away from each other. The second drive device 4 is located at the opposite position outside the first drive device 3, and its output end is connected to the longitudinal limiting mechanism 6 via a chain. The longitudinal limiting mechanism 6 is provided with a limiting baffle 10. When the UAV lands, the first drive device 3 and the second drive device 4 can be activated simultaneously or sequentially to drive the positioning hooks 9 and the limiting baffle 10 on both sides to move towards the center, thereby achieving the centering guidance and fixation of the UAV landing gear.

[0030] In this embodiment, an automatic centering and positioning platform for unmanned aerial vehicles (UAVs) is provided to achieve automatic centering and fixation of the UAV after landing. The platform mainly includes a bottom support 1 and a top support 2 mounted on it, the top support 2 being used to support the UAV.

[0031] A first drive unit 3 is installed in the central area between the bottom support 1 and the top support 2. This unit is preferably a servo motor or a stepper motor, and its output shaft is connected to a double-output right-angle gearbox 7. The two output shafts of the gearbox are respectively connected to reciprocating motion components 8, such as ball screw pairs or synchronous belt drive mechanisms, via couplings. Each reciprocating motion component 8 is equipped with a positioning hook 9 for hooking the landing gear of the UAV. By rotating the first drive unit 3 in both directions, the two positioning hooks 9 can be driven to move synchronously in opposite directions laterally.

[0032] A second drive device 4 is provided at the opposite position to the outside of the first drive device 3, which can also be a servo motor or a stepper motor. The output end of this device is connected to a chain drive mechanism via a sprocket, and the top of the chain of the chain drive mechanism is connected to the longitudinal limiting mechanism 6.

[0033] During operation, the drone lands on the top support 2, at which point its position may be slightly off. After landing, the first drive unit 3 and the second drive unit 4 start simultaneously. The first drive unit 3, through a dual-output right-angle gearbox 7 and a reciprocating mechanism, drives the two side positioning hooks 9 to move laterally inward, pushing the drone's landing gear to correct laterally. The second drive unit 4, through a chain transmission mechanism, drives the two side limit baffles 10 to move towards the center, thereby limiting the drone longitudinally. The combined action of the two drives the drone to gradually adjust to the center position of the platform and finally fix it in place by the positioning hooks 9, thus providing a stable and accurate positioning basis for subsequent charging, data transmission, and transfer operations.

[0034] Please refer to this carefully. Figure 3 , 6 The first driving device 3 is a dual-output shaft motor 31, with each of its two output shafts connected to a dual-output right-angle gearbox 7. The dual-output right-angle gearbox 7 is fixedly mounted on the support plate of the bottom bracket 1. Each dual-output right-angle gearbox 7 has two output ends connected to a reciprocating motion component 8 via a coupling. The four reciprocating motion components 8 are symmetrically arranged in a rectangular distribution and drive the positioning hook 9 to position the UAV landing gear. In this embodiment, a preferred implementation of an automatic centering positioning platform for a UAV is further provided. Specifically, the first driving device 3 uses a dual-output shaft motor 31, which is horizontally mounted in the support space between the bottom bracket 1 and the top bracket 2. The two output shafts of the motor extend outwards horizontally, with each end connected to a dual-output right-angle gearbox 7. The dual-output right-angle gearbox 7 is fixedly mounted to the support plate of the bottom bracket 1 with bolts to ensure the stability of the transmission process.

[0035] Each dual-output right-angle gearbox 7 has two horizontally oriented output shafts, each connected to a reciprocating motion assembly 8 via a coupling. The reciprocating motion assembly 8 has a positioning hook 9 mounted on its actuating component. The four reciprocating motion assemblies 8 are arranged symmetrically at four locations on the platform, forming a rectangular layout structure. This allows for simultaneous clamping of the UAV landing gear from multiple directions, achieving precise centering and reliable fixation of the UAV.

[0036] This structural design significantly improves the stability and adaptability of positioning, effectively addressing potential deviations in different directions during drone landing and ensuring the drone remains centered and fixed on the platform, providing a solid guarantee for subsequent operations.

[0037] Please refer to this carefully. Figure 6 The reciprocating motion assembly 8 includes a concave track 81, a moving block 82, and a rotating lead screw 83. The concave track 81 is fixedly mounted on the bottom support 1, and the rotating lead screw 83 is rotatably mounted in its middle. The moving block 82 and the rotating lead screw 83 form a helical transmission pair and are slidably connected along the concave track 81. The positioning hook 9 is fixedly mounted on the top of the moving block 82. One end of the rotating lead screw 83 is connected to the output shaft of the double-output right-angle gearbox 7 via a coupling. In this embodiment, the structure of the reciprocating motion assembly 8 is further defined. The concave track 81 is mounted on the bottom support 1 by fasteners, serving as a support and guide. A bearing seat is provided in the middle of the track to support the rotating lead screw 83, allowing it to rotate smoothly.

[0038] The movable block 82 has a nut embedded inside that matches the rotating lead screw 83, forming a ball screw pair or a common lead screw and nut mechanism. The movable block 82 has shoulders or sliders on both sides, which cooperate with the guide grooves on the side wall of the concave track 81, thereby restricting its circumferential rotation and allowing it to move horizontally only along the longitudinal direction of the track.

[0039] When the output shaft of the dual-output right-angle gearbox 7 drives the lead screw 83 to rotate via the coupling, the moving block 82 moves linearly along the concave track 81 under the transmission of the lead screw, thereby causing the positioning hook 9 fixed thereon to move closer to or away from the UAV landing gear. This structure has the advantages of high transmission accuracy, smooth operation, and strong load-bearing capacity, ensuring that the UAV can withstand appropriate clamping force and accurate and reliable position correction during the positioning process. The reciprocating motion assembly 8 is provided with four sets. When the first drive device 3 is started, it will drive the symmetrically arranged positioning hooks 9 to move in opposite directions or away from each other.

[0040] Please refer to this carefully. Figure 5The top support 2 is connected to the bottom support 1 at intervals by support columns 21. The top support 2 and the bottom support 1 are connected by an aluminum alloy bracket. Multiple symmetrical receiving slots 22 are provided on the top support 2, and a transverse support roller 23 is rotatably installed in each of the receiving slots 22. In this embodiment, the structure of the top support 2 and its auxiliary positioning function are specifically described. The top support 2 is connected to the bottom support 1 at a certain interval by several support columns 21. This structure is assembled from lightweight aluminum alloy profiles, ensuring overall structural strength and lightweight design.

[0041] Multiple strip-shaped receiving grooves 22 are symmetrically machined on the plate of the top support 2. Transverse support rollers 23, which can rotate freely, are mounted within these grooves via bearings or shafts, with their axial direction arranged transversely along the platform. When the UAV lands on the top support 2, its landing gear or fuselage bottom contacts these transverse support rollers 23. The support rollers convert sliding friction into rolling friction, significantly reducing the frictional force experienced by the UAV's landing gear during lateral movement. Simultaneously, because the support rollers can rotate freely in the longitudinal direction, they provide almost no resistance to the UAV's minute longitudinal movements. This low-resistance environment allows the first drive unit 3 and the second drive unit 4 to guide and correct the UAV's position more smoothly and accurately with less driving force, ultimately achieving efficient centering.

[0042] Please refer to this carefully. Figure 7 , 8 The longitudinal limiting mechanism 6 includes symmetrically arranged sliding blocks 61, sliding rods 62, connecting blocks 63, and limiting blocks 64; the top bracket 2 is provided with a corresponding sliding rail 65, and the sliding blocks 61 are slidably connected to the sliding rails 65; the inner sides of the two symmetrically arranged sliding blocks 61 are connected to both ends of the sliding rods 62; the bottom of the sliding rods 62 is fixedly connected to the chain through the connecting blocks 63; the limiting block 64 is provided at the end of the sliding blocks 61. In this embodiment, the specific structure and transmission process of the longitudinal limiting mechanism 6 are described in detail. This mechanism mainly includes a pair of sliding blocks 61, a sliding rod 62 connecting the two sliding blocks 61, a connecting block 63 connecting the sliding rods 62 to the chain, and a limiting block 64 for directly contacting and guiding the drone footrest.

[0043] The top support 2 has a sliding rail 65 that matches the shape of the sliding block 61. The sliding block 61 is embedded in the rail and can slide freely along the length of the groove. The sliding rod 62 is horizontally positioned between the two sliding blocks 61, with its two ends fixedly connected to the left and right sliding blocks 61 respectively, forming a linkage structure. The lower middle part of the sliding rod 62 is rigidly connected to the transmission chain through a connecting block 63.

[0044] When the second drive unit 4 is running, the drive chain reciprocates. The chain drives the sliding rod 62 to move via the connecting block 63, and the sliding rod 62 in turn pushes the sliding blocks 61 on the left and right sides to move synchronously towards or away from each other within their respective sliding rails 65. Finally, the limiting block 64 fixed to the end of the sliding block 61 moves closer to or further away from the center, thereby longitudinally pushing and limiting the drone's landing gear, working in conjunction with the lateral positioning hook 9 to complete the precise centering and fixing of the drone. This design achieves reliable power transmission from the chain to the limiting block 64, ensuring the synchronicity and stability of the longitudinal correction action.

[0045] Please refer to this carefully. Figure 8 , 9 10. The limiting block 64 is a flip-up triangular stop 641, with a support frame 642 symmetrically connected to its bottom. A traveling wheel 643 is rotatably mounted on the end of the support frame 642. The platform also includes a fixedly mounted inclined guide 644, with the bottom of the traveling wheel 643 rolling in contact with the upper surface of the inclined guide 644. The inner side of the triangular stop 641 is connected to the sliding block 61 via a hinge shaft 645. The inclined guide 644 has a gradually increasing slope. In this embodiment, the structure and working process of the limiting block 64 of the longitudinal limiting mechanism 6 are further defined. Specifically, the limiting block 64 is a triangular stop 641 that can rotate around the hinge point. Traveling wheels 643 are mounted on both sides of the bottom of the triangular stop 641 via the support frame 642.

[0046] The platform is equipped with a fixed inclined guide 644, which has an incline that gradually increases from the edge of the platform towards the center. When the second drive device 4 is not activated, the triangular stop 641 keeps its top approximately horizontal under its own weight.

[0047] When longitudinal centering correction is required, the second drive unit 4 is activated, and the drive chain moves the sliding block 61 and the triangular stop 641 hinged to it toward the center. During this process, the traveling wheel 643 at the bottom of the triangular stop 641 rolls and climbs upward along the inclined surface of the inclined guide member 644. The upward movement of the traveling wheel 643 forces the triangular stop 641 to rotate around its hinge point with the sliding block 61 until the triangular stop 641 is fully slidably connected to the top bracket 2. Subsequently, the two symmetrically arranged triangular stops 641 continue to move towards each other synchronously, and their baffle surfaces contact and push the drone's feet from both sides, thereby achieving precise longitudinal centering limit. After the operation is completed, the drive unit reverses, and the triangular stop 641 rotates in the opposite direction as the traveling wheel 643 descends along the inclined surface, returning to its initial horizontal storage state to avoid interfering with the drone's take-off and landing.

[0048] Please refer to this carefully. Figure 10The inclined guide member 644 includes an inclined support block 646. The bottom of the walking wheel 643 is slidably connected to the inclined support block 646. The two ends of the inclined support block 646 are connected to the top and bottom bracket 1. An inclined support plate 647 is provided between the inclined support block 646 and the sliding rail 65. In this embodiment, the walking wheel 643 at the bottom of the triangular stop block 641 will gradually rise through the inclined support block 646 and the inclined support plate 647, thereby driving the triangular stop plate to tilt upward from the horizontal state component, which facilitates the subsequent centering and limiting of the drone bracket.

[0049] Please refer to this carefully. Figure 1-2 A load-bearing plate 24 is fixedly installed on the top of the top support 2. The load-bearing plate 24 has several through slots 25, which facilitate the operation of the positioning hook 9, the transverse support roller 23, and the limiting baffle 10. In this embodiment, the load-bearing structure of the top support 2 is further defined. A flat load-bearing plate 24 is fixedly covered on the top support 2, which is made of aluminum alloy profiles, forming a stable and flat landing platform surface for directly supporting the drone.

[0050] The load-bearing plate 24 has pre-machined through slots 25 with a specific layout. The position and number of these slots are precisely designed to correspond to the positioning hook 9, the transverse support roller 23, and the limiting baffle 10 in the lower mechanism. During operation, the hook body of the positioning hook 9, the roller body of the transverse support roller 23, and the stop block of the limiting baffle 10 extend upward from their respective slots, slightly above the upper surface of the load-bearing plate 24, to contact the drone's landing gear. All slots provide sufficient space for movement, ensuring that the positioning hook 9 can move smoothly in opposite directions laterally, the transverse support roller 23 can rotate freely within the slots, and the limiting baffle 10 can also be in its initial position within the slots and complete its longitudinal pushing stroke. This design ensures both the integrity and strength of the top load-bearing surface and provides necessary clearance for all moving parts, making the drone stable and reliable during landing and positioning.

[0051] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automatic centering and positioning platform for unmanned aerial vehicles (UAVs), characterized in that: The system includes a bottom support (1), a top support (2), a first drive device (3), a second drive device (4), a bidirectional synchronous clamping mechanism (5), and a longitudinal limiting mechanism (6). The top support (2) is fixedly installed above the bottom support (1) to receive the landing drone. The first drive device (3) is installed in the mounting space between the bottom support (1) and the top support (2), and its output end is connected to the bidirectional synchronous clamping mechanism (5). The bidirectional synchronous clamping mechanism (5) includes a double-output right-angle gearbox (7) and a reciprocating motion connected to the two output ends of the gearbox. The reciprocating motion component (8) is provided with a pair of positioning hooks (9) that can move laterally towards each other or away from each other; the second driving device (4) is located at the opposite position outside the first driving device (3), and its output end is connected to the longitudinal limiting mechanism (6) through a chain. The longitudinal limiting mechanism (6) is provided with a limiting baffle (10). When the UAV lands, the first driving device (3) and the second driving device (4) can be started simultaneously or in sequence, respectively driving the positioning hooks (9) and the limiting baffle (10) on both sides to move towards the center, so as to jointly achieve the centering guidance and fixation of the UAV tripod.

2. The UAV automatic centering and positioning platform according to claim 1, characterized in that: The first drive device (3) is a dual-output shaft motor (31), and the output shafts at both ends of the motor are respectively connected to a dual-output right-angle gearbox (7); the dual-output right-angle gearbox (7) is fixedly installed on the support plate of the bottom bracket (1); the two output ends of each dual-output right-angle gearbox (7) are connected to the reciprocating motion component (8) through a coupling; the four reciprocating motion components (8) are symmetrically arranged in a rectangular distribution and drive the positioning hook (9) to position the UAV footrest.

3. The UAV automatic centering positioning platform according to claim 1, characterized in that: The reciprocating motion assembly (8) includes a concave track (81), a moving block (82), and a rotating screw (83); the concave track (81) is fixedly mounted on the bottom support (1), and the rotating screw (83) is rotatably mounted in its middle; the moving block (82) and the rotating screw (83) form a helical transmission pair and are slidably connected along the concave track (81); the positioning hook (9) is fixedly mounted on the top of the moving block (82); one end of the rotating screw (83) is connected to the output shaft of the double-output right-angle gearbox (7) through a coupling.

4. The UAV automatic centering and positioning platform according to claim 1, characterized in that: The top support (2) has a support column (21) spaced at the bottom and connected to the bottom support (1). The top support (2) and the bottom support (1) are connected by an aluminum alloy support. The top support (2) has multiple symmetrically opened receiving slots (22). Each receiving slot (22) can be rotatably provided with a transverse support roller (23).

5. The UAV automatic centering and positioning platform according to claim 1, characterized in that: The longitudinal limiting mechanism (6) includes symmetrically arranged sliding blocks (61), sliding rods (62), connecting blocks (63), and limiting blocks (64); the top bracket (2) is provided with a sliding rail (65) at a corresponding position, and the sliding blocks (61) are slidably connected to the sliding rails (65); the inner sides of the two symmetrically arranged sliding blocks (61) are connected to both ends of the sliding rods (62); the bottom of the sliding rods (62) is fixedly connected to the chain through the connecting blocks (63); the limiting block (64) is provided at the end of the sliding blocks (61).

6. The UAV automatic centering and positioning platform according to claim 5, characterized in that: The limiting block (64) is a flip-up triangular stop (641), with a support frame (642) symmetrically connected to its bottom. A walking wheel (643) is rotatably mounted on the end of the support frame (642). The platform also includes a fixedly installed inclined brace guide (644), with the bottom of the walking wheel (643) rolling in contact with the upper surface of the inclined brace guide (644). The inner side of the triangular stop (641) is connected to the sliding block (61) through a hinge shaft (645). The inclined brace guide (644) has a gradually increasing inclination slope.

7. The UAV automatic centering positioning platform according to claim 6, characterized in that: The inclined brace guide (644) includes an inclined brace block (646), the bottom of the walking wheel (643) is slidably connected to the inclined brace block (646), the two ends of the inclined brace block (646) are connected to the top and bottom brackets (1), and an inclined brace plate (647) is provided between the inclined brace block (646) and the sliding rail (65).

8. The UAV automatic centering positioning platform according to claim 4, characterized in that: The top of the top support (2) is fixedly installed with a load-bearing plate (24), and the load-bearing plate (24) is provided with several through grooves (25). The through grooves (25) facilitate the operation of the positioning hook (9), the transverse support roller (23), and the limiting baffle (10).

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