Take-off and landing platform structure for automatic centering of unmanned aerial vehicle

Abstract

The utility model discloses a take-off and landing platform structure for automatic centering of an unmanned aerial vehicle, the take-off and landing platform structure comprises a take-off and landing platform, a centering connecting rod mechanism, a push rod transmission mechanism and a power driving mechanism, the centering connecting rod mechanism comprises two groups of X-axis centering rods and two Y-axis centering rods; the push rod transmission mechanism comprises an X-axis lead screw transmission module, an X-axis guide rail transmission assembly and a Y-axis lead screw transmission module, the Y-axis guide rail transmission assembly, the X-axis lead screw transmission module and the Y-axis lead screw transmission module are in transmission connection with the power driving mechanism, and the X-axis lead screw transmission module and the X-axis guide rail transmission assembly are connected with the two ends of two sets of X-axis centering rods correspondingly. The Y-axis lead screw transmission module and the Y-axis guide rail transmission assembly are connected with the two ends of the two sets of Y-axis centering rods correspondingly. Only one power driving mechanism is needed to drive opening and closing operation of the X-axis lead screw transmission module and the Y-axis lead screw transmission module, take-off and landing of the unmanned aerial vehicle are facilitated, and automatic centering and clamping of the unmanned aerial vehicle are achieved.

Description

Technical Field

[0001] This utility model relates to the field of UAV centering technology, specifically to a take-off and landing platform structure for automatic UAV centering. Background Technology

[0002] With the widespread application of micro-drones, in order to overcome the short range of ordinary drones, a large number of drone hangars are deployed to charge drones during patrol and other missions. Drone hangars can secure drones within the hangar using various structures after landing, and connect to the hangar's power supply to charge the drone's battery. The drone take-off and landing platform is one of the core components of the drone nest, mainly used for drone landing and reentry.

[0003] The take-off and landing platform is used to dock drones. When the drone is charging, it needs to be placed in the middle of the hangar. After the drone lands on the take-off and landing platform of the drone hangar, since the landing point of the drone is not necessarily in the middle of the take-off and landing platform, a centering structure is usually set on the take-off and landing platform to push the drone to the middle position of the take-off and landing platform.

[0004] Currently, the drive structure of the UAV centering device on take-off and landing platforms mainly uses multiple sets of drive structures to achieve the centering motion. For example, Chinese Patent CN 219928011 U, "A UAV Centering Device in an UAV Airport," discloses a UAV centering device in an UAV airport, including a centering base plate, left and right centering plates, front and rear centering plates, left and right drive mechanisms, and front and rear drive mechanisms. A parking position is provided in the middle of the centering base plate. The left and right centering plates are slidably mounted on the centering base plate and are symmetrically arranged on the left and right sides of the parking position. The left and right drive mechanisms are used to drive the left and right centering plates to slide left and right. The front and rear centering plates are slidably mounted on the centering base plate and are symmetrically arranged on the front and rear sides of the parking position. The front and rear drive mechanisms are used to drive the front and rear drive mechanisms. The device involves sliding left and right centering plates forward and backward. A stopping position is set in the center of the base plate, with left and right sliding centering plates symmetrically arranged on either side of the stopping position, and front and rear sliding centering plates symmetrically arranged on either side of the stopping position. When the drone lands at the stopping position, the left and right drive mechanisms simultaneously move the left and right centering plates inward towards the center, pushing the drone body towards the center of the stopping position. Once the left and right centering plates reach a preset position, the front and rear drive mechanisms simultaneously move the front and rear centering plates inward towards the center, pushing the drone body towards the center of the platform, ultimately returning the drone body to the center of the stopping position. While this drone centering device can achieve the centering movement of the centering plates, it has the following problems during use:

[0005] 1) It requires the use of left and right drive mechanisms and front and rear drive mechanisms, which requires many power drive components, increasing the complexity of the centering device structure and resulting in higher production costs.

[0006] 2) The multiple power drive components require a lot of space inside the drone nest, increasing the weight of the drone nest. Utility Model Content

[0007] The technical problem this utility model aims to solve is to address the shortcomings of existing technologies by providing a system that requires only one power drive mechanism to operate the opening and closing of the X-axis lead screw transmission module and the Y-axis lead screw transmission module. This system enables the two sets of X-axis centering rods and the two sets of Y-axis centering rods to return to the periphery or center position of the take-off and landing platform, facilitating UAV take-off and vertical landing, and enabling automatic centering and clamping of the UAV. This system can serve as a universal modular component for UAV hangars, simplifying the structure and facilitating the design of take-off and landing platform structures for UAV hangars.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A take-off and landing platform structure for automatic centering of a drone, the take-off and landing platform structure includes a take-off and landing platform, a centering linkage mechanism for centering the drone, a push rod transmission mechanism, and a power drive mechanism. The centering linkage mechanism is installed above the take-off and landing platform to center the drone's position. The push rod transmission mechanism is installed on the bottom side of the take-off and landing platform. The power drive mechanism is installed on the bottom side of the take-off and landing platform. The power drive mechanism is connected to the push rod transmission mechanism.

[0010] The centering linkage mechanism includes two sets of spaced X-axis centering rods and two sets of spaced Y-axis centering rods. The two sets of X-axis centering rods are arranged above the take-off and landing platform along the X-axis direction, and the two sets of Y-axis centering rods are arranged above the take-off and landing platform along the Y-axis direction. Both sets of X-axis centering rods are installed above the two sets of Y-axis centering rods.

[0011] The push rod transmission mechanism includes an X-axis lead screw transmission module, an X-axis guide rail transmission assembly, a Y-axis lead screw transmission module, and a Y-axis guide rail transmission assembly. The X-axis lead screw transmission module and the X-axis guide rail transmission assembly are arranged opposite to each other and distributed on both sides of the bottom of the landing platform. The Y-axis lead screw transmission module and the Y-axis guide rail transmission assembly are arranged opposite to each other and distributed on the other two sides of the bottom of the landing platform.

[0012] Both the X-axis lead screw transmission module and the Y-axis lead screw transmission module are connected to the power drive mechanism. The X-axis lead screw transmission module and the X-axis guide rail transmission assembly are respectively connected to the two ends of the two sets of X-axis centering rods. The Y-axis lead screw transmission module and the Y-axis guide rail transmission assembly are respectively connected to the two ends of the two sets of Y-axis centering rods.

[0013] Furthermore, the X-axis lead screw transmission module includes a bidirectional X-axis lead screw with positive and negative teeth and two X-axis lead screw sliders. The bidirectional X-axis lead screw is installed on one side of the bottom of the lifting platform along the X-axis. The two X-axis lead screw sliders are symmetrically mounted on the bidirectional X-axis lead screw. The top ends of the two X-axis lead screw sliders are respectively fixed to one end of two sets of X-axis centering rods. The Y-axis lead screw transmission module includes a bidirectional Y-axis lead screw with positive and negative teeth and two Y-axis lead screw sliders. The bidirectional Y-axis lead screw is installed on one side of the bottom of the lifting platform along the Y-axis. The two Y-axis lead screw sliders are symmetrically mounted on the bidirectional Y-axis lead screw. The top ends of the two Y-axis lead screw sliders are respectively fixed to one end of two sets of Y-axis centering rods. One end of both the bidirectional X-axis lead screw and the bidirectional Y-axis lead screw is connected to the power drive mechanism.

[0014] Furthermore, the X-axis lead screw transmission module also includes two sets of first bushings and two X-axis fixing seats. The two X-axis fixing seats are symmetrically fixed to one side of the bottom of the lifting platform. Each set of first bushings is fixed to each X-axis fixing seat. The two ends of the X-axis bidirectional lead screw pass through the two sets of first bushings respectively to install the X-axis lead screw on the bottom of the lifting platform.

[0015] Furthermore, the Y-axis lead screw transmission module also includes two sets of second bushings and two Y-axis fixing seats. The two Y-axis fixing seats are symmetrically fixed to the other side of the bottom of the lifting platform. Each set of second bushings is fixed to each Y-axis fixing seat. The two ends of the Y-axis bidirectional lead screw pass through the two sets of second bushings respectively to install the Y-axis lead screw on the bottom of the lifting platform.

[0016] Furthermore, the X-axis guide rail transmission assembly includes an X-axis linear guide rail and two X-axis sliders that slide in cooperation with the X-axis linear guide rail. The X-axis linear guide rail is installed on the other side of the bottom of the landing platform along the X-axis and is distributed opposite to the X-axis bidirectional lead screw of the X-axis lead screw transmission module. The two X-axis sliders are slidably mounted on the X-axis linear guide rail, and the two X-axis sliders are respectively fixed to the other ends of the two sets of X-axis centering rods. The Y-axis guide rail transmission assembly includes a Y-axis linear guide rail and two Y-axis sliders that slide in cooperation with the Y-axis linear guide rail. The Y-axis linear guide rail is installed on the other side of the bottom of the landing platform along the Y-axis and is distributed opposite to the Y-axis bidirectional lead screw of the Y-axis lead screw transmission module. The two Y-axis sliders are slidably mounted on the Y-axis linear guide rail, and the two Y-axis sliders are respectively fixed to the other ends of the two sets of Y-axis centering rods.

[0017] Furthermore, the power drive mechanism includes a geared motor, a first coupling, and a right-angle gearbox. The first coupling is located between the geared motor and the right-angle gearbox. One end of the first coupling is connected to the output shaft of the geared motor, and the other end of the first coupling is connected to the input shaft of the right-angle gearbox. The geared motor is connected to one end of the input shaft of the right-angle gearbox through the first coupling. The two output shafts of the right-angle gearbox are respectively connected to the X-axis bidirectional lead screw and the Y-axis bidirectional lead screw.

[0018] Furthermore, the right-angle gearbox is provided with a first bevel gear, a second bevel gear, and a drive shaft. The second bevel gear is arranged on one side of the first bevel gear and meshes with the first bevel gear. The first bevel gear is mounted on the drive shaft. The first bevel gear is connected to the other end of the input shaft of the right-angle gearbox. The second bevel gear is connected to one output shaft of the right-angle gearbox. The first bevel gear is connected to the other output shaft of the right-angle gearbox through the drive shaft.

[0019] Furthermore, the geared motor is a power motor with a gearbox.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The lifting platform structure of this utility model includes a lifting platform, a centering linkage mechanism, a push rod transmission mechanism, and a power drive mechanism. The centering linkage mechanism includes two sets of spaced X-axis centering rods and two sets of spaced Y-axis centering rods. The two sets of X-axis centering rods are installed above the two sets of Y-axis centering rods. The push rod transmission mechanism includes an X-axis lead screw transmission module, an X-axis guide rail transmission assembly, a Y-axis lead screw transmission module, and a Y-axis guide rail transmission assembly. The X-axis lead screw transmission module and the X-axis guide rail transmission assembly are arranged opposite to each other and distributed on both sides of the bottom of the lifting platform. The Y-axis lead screw transmission module and the Y-axis guide rail transmission assembly are arranged opposite to each other and distributed on the other two sides of the bottom of the lifting platform. The X-axis lead screw transmission module and the Y-axis lead screw transmission assembly are both connected to the power drive mechanism. The X-axis lead screw transmission module and the X-axis guide rail transmission assembly are respectively connected to the two ends of the two sets of X-axis centering rods. The Y-axis lead screw transmission module and the Y-axis guide rail transmission assembly are respectively connected to the two ends of the two sets of Y-axis centering rods. The take-off and landing platform structure of this utility model only requires one power drive mechanism to drive the opening and closing operation of the X-axis lead screw transmission module and the Y-axis lead screw transmission module. This allows the two sets of X-axis centering rods and the two sets of Y-axis centering rods to return to the four sides or the center of the take-off and landing platform, facilitating the take-off and vertical landing of UAVs. The UAV automatically centers and clamps itself. It can be used as a general modular component for UAV hangars, simplifying the structure and facilitating the design of UAV hangars. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the automatic centering and clamping UAV structure of the take-off and landing platform of this utility model in use.

[0023] Figure 2 This is a schematic diagram of the overall structure of the take-off and landing platform of this utility model;

[0024] Figure 3 This is a schematic diagram of the overall structure of the take-off and landing platform of this utility model from another angle;

[0025] Figure 4 This is a schematic diagram showing the relationship between the centering linkage mechanism, the push rod transmission mechanism, and the power drive mechanism of this utility model;

[0026] Figure 5 This is a schematic diagram showing the relationship between the centering linkage mechanism, push rod transmission mechanism, and power drive mechanism of this utility model from another angle.

[0027] In the diagram, the components are: 1. Lifting and lowering platform; 2. Centering linkage mechanism; 21. X-axis centering rod; 22. Y-axis centering rod; 3. Push rod transmission mechanism; 31. X-axis lead screw transmission module; 311. X-axis bidirectional lead screw; 312. X-axis lead screw slider; 313. X-axis fixed seat; 314. First bushing; 32. X-axis guide rail transmission assembly; 321. X-axis linear guide rail; 322. X-axis slider; 33. Y-axis lead screw transmission module; 331. Y-axis bidirectional lead screw; 332. Y-axis lead screw slider; 333. Shaft fixing seat 333, second shaft sleeve 334, Y-axis guide rail transmission assembly 34, Y-axis linear guide rail 341, Y-axis slider 342, power drive mechanism 4, geared motor 41, right angle gearbox 42, input shaft 421, output shaft 422, first bevel gear 423, second bevel gear 424, transmission shaft 425, first coupling 43, second coupling 44, third coupling 45, limit switch 46, drone 5, charging head 6. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1-5As shown, Embodiment 1 of this utility model provides a take-off and landing platform 1 structure for automatic centering of a UAV 5. The take-off and landing platform 1 structure includes a take-off and landing platform 1, a centering linkage mechanism 2 for centering the UAV 5, a push rod transmission mechanism 3, and a power drive mechanism 4. The centering linkage mechanism 2 is installed above the take-off and landing platform 1 to center the UAV 5. The push rod transmission mechanism 3 is installed on the bottom side of the take-off and landing platform 1, and the power drive mechanism 4 is installed on one side of the bottom of the take-off and landing platform 1. The power drive mechanism 4 is connected to the push rod transmission mechanism 3. The centering linkage mechanism 2 includes two sets of spaced X-axis centering rods 21 and two sets of spaced Y-axis centering rods 22. The two sets of X-axis centering rods 21 are arranged above the take-off and landing platform 1 along the X-axis direction, and the two sets of Y-axis centering rods 22 are arranged above the take-off and landing platform 1 along the Y-axis direction. Both sets of X-axis centering rods 21 are installed above the two sets of Y-axis centering rods 22. Above the center rod 22; specifically, both sets of X-axis centering rods 21 are mounted above the two sets of Y-axis centering rods 22, and are arranged in a "well" shape. The push rod transmission mechanism 3 includes an X-axis lead screw transmission module 31, an X-axis guide rail transmission assembly 32, a Y-axis lead screw transmission module 33, and a Y-axis guide rail transmission assembly 34. The X-axis lead screw transmission module 31 and the X-axis guide rail transmission assembly 32 are arranged opposite to each other and distributed on both sides of the bottom of the lifting platform 1. The Y-axis lead screw transmission... Module 33 and Y-axis guide rail transmission assembly 34 are arranged opposite each other and distributed on the other two sides of the bottom of the lifting platform 1. X-axis lead screw transmission module 31 and Y-axis lead screw transmission module 33 are both connected to the power drive mechanism 4. X-axis lead screw transmission module 31 and X-axis guide rail transmission assembly 32 are respectively connected to the two ends of the two sets of X-axis centering rods 21. Y-axis lead screw transmission module 33 and Y-axis guide rail transmission assembly 34 are respectively connected to the two ends of the two sets of Y-axis centering rods 22.The landing platform 1 of this invention is powered by a single power drive mechanism 4. The rotation of the power drive mechanism 4 drives the X-axis lead screw transmission module 31 and the Y-axis lead screw transmission module 33 outwards, causing them to push two sets of X-axis centering rods 21 and two sets of Y-axis centering rods 22 back to the periphery of the landing platform 1, thus freeing up the central space for the UAV 5 to take off and land. The power drive mechanism 4 can also move the X-axis lead screw transmission module 31 and the Y-axis lead screw transmission module 33 inwards, pushing them back to the center position of the landing platform 1. This allows the two sets of X-axis centering rods 21 and two sets of Y-axis centering rods 22 to drive the UAV 5 to the center of the landing platform 1. At a specific location, the UAV 5 can automatically center itself. The take-off and landing platform 1 structure set by this utility model only requires one power drive mechanism 4 to drive the opening and closing operations of the X-axis lead screw transmission module 31 and the Y-axis lead screw transmission module 33, so that the two sets of X-axis centering rods 21 and the two sets of Y-axis centering rods 22 return to the four sides or the middle position of the take-off and landing platform 1. This facilitates the automatic centering and clamping of the UAV 5 after take-off and vertical landing. The take-off and landing platform 1 structure can be used as a general modular component of the UAV 5 hangar, which simplifies the design of the UAV 5 hangar. Only one power drive mechanism 4 is needed to provide power, compared with the traditional landing platform which requires multiple power drive mechanisms 4 for centering. This saves on equipment costs, simplifies the structure, reduces the volume occupied by the take-off and landing platform 1 structure in the UAV 5 hangar, is safe and reliable, can be applied to complex application scenarios, and is easy to maintain.

[0030] In a specific implementation, the X-axis lead screw transmission module 31, X-axis guide rail transmission assembly 32, Y-axis lead screw transmission module 33, Y-axis guide rail transmission assembly 34, and power drive mechanism 4 at the bottom of the take-off and landing platform 1 can be encapsulated in an outer shell, and the encapsulated take-off and landing platform 1 can be used as a general module component of the hangar of the UAV 5.

[0031] In this embodiment of the utility model, the X-axis lead screw transmission module 31 includes an X-axis bidirectional lead screw 311 with positive and negative teeth and two X-axis lead screw sliders 312. The X-axis bidirectional lead screw 311 is installed on one side of the bottom of the lifting platform 1 along the X-axis. The two X-axis lead screw sliders 312 are symmetrically mounted on the X-axis bidirectional lead screw 311. The top ends of the two X-axis lead screw sliders 312 are respectively fixed to one end of two sets of X-axis centering rods 21. The Y-axis lead screw transmission module 33 includes a Y-axis bidirectional lead screw 331 with positive and negative teeth and two Y-axis lead screw sliders 332. The Y-axis bidirectional lead screw 331 is installed on one side of the bottom of the lifting platform 1 along the Y-axis. The two Y-axis lead screw sliders 332 are symmetrically mounted on the Y-axis bidirectional lead screw 331. The top ends of the two Y-axis lead screw sliders 332 are respectively fixed to one end of two sets of Y-axis centering rods 22. One end of both the X-axis bidirectional lead screw 311 and the Y-axis bidirectional lead screw 331 are connected to the power drive mechanism 4 for transmission.

[0032] The X-axis lead screw transmission module 31 of this utility model also includes two sets of first bushings 314 and two X-axis fixing seats 313. The two X-axis fixing seats 313 are symmetrically fixed to one side of the bottom of the lifting platform 1. Each set of first bushings 314 is fixed to each X-axis fixing seat 313. The two ends of the X-axis bidirectional lead screw 311 pass through the two sets of first bushings 314 respectively to install the X-axis lead screw to the bottom of the lifting platform 1. The Y-axis lead screw transmission module 33 also includes two sets of second bushings 334 and two Y-axis fixing seats 333. The two Y-axis fixing seats 333 are symmetrically fixed to the other side of the bottom of the lifting platform 1. Each set of second bushings 334 is fixed to each Y-axis fixing seat 333 respectively. The two ends of the Y-axis bidirectional lead screw 331 pass through the two sets of second bushings 334 respectively to install the Y-axis lead screw to the bottom of the lifting platform 1.

[0033] The X-axis bidirectional lead screw 311 of this invention has left-hand (reverse) and right-hand (positive) threads. The two X-axis lead screw sliders 312 have internal threads that mate with the positive and reverse threads on the X-axis bidirectional lead screw 311. The two X-axis lead screw sliders 312 are respectively fitted onto the positive and reverse threads of the X-axis bidirectional lead screw 311. When the power drive mechanism 4 drives the X-axis bidirectional lead screw 311 to rotate, the two X-axis lead screw sliders 312 move towards each other or away from each other due to the opposite thread directions of the X-axis bidirectional lead screw 311. This causes the two sets of X-axis centering rods 21 to move towards the periphery of the lifting platform 1 or the center of the lifting platform 1. Movement; the threads on the Y-axis bidirectional lead screw 331 are left-hand threads (reverse threads) and right-hand threads (positive threads). Each Y-axis lead screw slider 332 has internal threads that mate with the positive and negative threads on the Y-axis bidirectional lead screw 331. The two Y-axis lead screw sliders 332 are respectively fitted onto the positive and negative threads of the Y-axis bidirectional lead screw 331. When the power drive mechanism 4 drives the Y-axis bidirectional lead screw 331 to rotate, the two Y-axis lead screw sliders 332 move towards each other or away from each other because the threads of the Y-axis bidirectional lead screw 331 are opposite, so as to drive the two sets of Y-axis centering rods 22 to move towards the periphery of the lifting platform 1 or the middle position of the lifting platform 1.

[0034] The X-axis guide rail transmission assembly 32 of this utility model includes an X-axis linear guide rail 321 and two X-axis sliders 322 that slide in cooperation with the X-axis linear guide rail 321. The X-axis linear guide rail 321 is installed on the other side of the bottom of the lifting platform 1 along the X-axis and is distributed opposite to the X-axis bidirectional lead screw 311 of the X-axis lead screw transmission module 31. The two X-axis sliders 322 are slidably disposed on the X-axis linear guide rail 321, and the two X-axis sliders 322 are respectively connected to the other end of the two sets of X-axis centering rods 21. Fixed; the Y-axis guide rail transmission assembly 34 includes a Y-axis linear guide rail 341 and two Y-axis sliders 342 that slide in cooperation with the Y-axis linear guide rail 341. The Y-axis linear guide rail 341 is installed on the other side of the bottom Y-axis of the lifting platform 1 and is distributed opposite to the Y-axis bidirectional lead screw 331 of the Y-axis lead screw transmission module 33. The two Y-axis sliders 342 are slidably set on the Y-axis linear guide rail 341 and are fixed to the other end of the two sets of Y-axis centering rods 22 respectively. In specific implementation, the X-axis linear guide 321 of this invention has an X-axis guide groove along its length, and the two X-axis sliders 322 have first protrusions that match the shape of the X-axis guide groove, so that the X-axis sliders 322 can slide on the X-axis linear guide 321; the Y-axis linear guide 341 has a Y-axis guide groove along its length, and the two Y-axis sliders 342 have second protrusions that match the shape of the Y-axis guide groove, so that the Y-axis sliders 342 can slide on the Y-axis linear guide 341. This invention uses an X-axis bidirectional lead screw 311, a Y-axis bidirectional lead screw 331, an X-axis linear guide 321, and a Y-axis linear guide 341 for transmission, avoiding problems such as poor resistance to high and low temperatures, the need for belt tensioning, and belt wear that occur with belt drives, making it more suitable for harsh outdoor working conditions.

[0035] In other embodiments, the X-axis linear guide 321 and the Y-axis linear guide 341 can also be replaced with bidirectional lead screws and used in conjunction with a right-angle gearbox 42 to transmit power, which can also complete the centering movement of the two sets of X-axis centering rods 21 and the two sets of Y-axis centering rods 22.

[0036] In this embodiment of the utility model, the power drive mechanism 4 includes a geared motor 41, a right-angle gearbox 42, and a first coupling 43. The first coupling 43 is located between the geared motor 41 and the right-angle gearbox 42. One end of the first coupling 43 is connected to the motor output shaft 422 of the geared motor 41, and the other end of the first coupling 43 is connected to the input shaft 421 of the right-angle gearbox 42. The geared motor 41 is connected to one end of the input shaft 421 of the right-angle gearbox 42 through the first coupling 43. The two output shafts 422 of the right-angle gearbox 42 are respectively connected to the X-axis bidirectional lead screw 311 and the Y-axis bidirectional lead screw 331. In a specific implementation, the connection points of the two output shafts 422 of the right-angle gearbox 42 with the X-axis bidirectional lead screw 311 and the Y-axis bidirectional lead screw 331 are respectively provided with a second coupling 44 and a third coupling 45. One output shaft 422 of the right-angle gearbox 42 is connected to the X-axis bidirectional lead screw 311 through the second coupling 44, and the other output shaft 422 of the right-angle gearbox 42 is connected to the Y-axis bidirectional lead screw 331 through the third coupling 45.

[0037] In other embodiments, the X-axis bidirectional lead screw 311 and Y-axis bidirectional lead screw 331 of this invention may not be connected to the output shaft 422 of the right-angle gearbox 42 via the second coupling 44 and the third coupling 45. The X-axis bidirectional lead screw 311 and Y-axis bidirectional lead screw 331 can be linked to the output shaft 422 of the right-angle gearbox 42 via internal keys (splines or flat keys) or built-in bushings. By machining keyways at the ends of the two output shafts 422 of the right-angle gearbox 42, and machining internal keys at one end of the X-axis bidirectional lead screw 311 and Y-axis bidirectional lead screw 331 to mate with the keyways of the output shafts 422 of the right-angle gearbox 42, the X-axis bidirectional lead screw 311 and Y-axis bidirectional lead screw 331 are inserted into the keyways at the ends of the two output shafts 422 of the right-angle gearbox 42 via the internal keys to achieve torque transmission.

[0038] In a specific implementation of this utility model embodiment, a limit switch 46 is installed on the geared motor 41. The limit switch 46 is used to open or close the geared motor 41. When the X-axis slider 322 and the Y-axis slider 342 move to their positions (to the periphery or center of the lifting platform 1), the limit switch 46 can be used to open or close the geared motor 41. The right-angle gearbox 42 is set in a cuboid shape. The input shaft 421 is fixed to one side of the right-angle gearbox 42, and the two output shafts 422 are respectively fixed to the other two sides of the right-angle gearbox 42. The geared motor 41 serves as a power source. The geared motor 41 is connected to the input shaft 421 of the right-angle gearbox 42 through the first coupling 43. The speed and torque of the geared motor 41 are adjusted by the right-angle gearbox 42 to adjust the rotation of the X-axis bidirectional lead screw 311 and the Y-axis bidirectional lead screw 331. The right-angle gearbox 42 includes a first bevel gear 423, a second bevel gear 424, and a drive shaft 425. The second bevel gear 424 is arranged on one side of the first bevel gear 423 and meshes with it. The first bevel gear 423 is mounted on the drive shaft 425 and is connected to the other end of the input shaft 421 of the right-angle gearbox 42. The second bevel gear 424 is connected to one output shaft 422 of the right-angle gearbox 42, and the first bevel gear 423 is connected to the other output shaft 422 of the right-angle gearbox 42 via the drive shaft 425. The power drive mechanism 4 drives the input shaft 421 of the right-angle gearbox 42 to rotate via the reduction motor 41. During the rotation of the input shaft 421, the first bevel gear 423 and the transmission shaft 425 will rotate. At the same time, the first bevel gear 423 will drive the second bevel gear 424 to rotate, causing the two output shafts 422 of the right-angle gearbox 42 to drive the X-axis bidirectional lead screw 311 and the Y-axis bidirectional lead screw 331 to rotate. This causes the two X-axis lead screw sliders 312 on the X-axis bidirectional lead screw 311 to move closer or further away from each other, and the two Y-axis lead screw sliders 332 on the Y-axis bidirectional lead screw 331 to move closer or further away from each other. This allows the X-axis bidirectional lead screw 311 and the Y-axis bidirectional lead screw 331 to push the two sets of X-axis centering rods 21 and the two sets of Y-axis centering rods 22 to move, facilitating the take-off and landing of the UAV 5 and its automatic centering and clamping.

[0039] In practice, a charging head 6 is provided in the middle of the two sets of X-axis centering rods 21. The charging head 6 is installed in the middle of one of the sets of X-axis centering rods 21. The functions include automatically centering and clamping the drone 5 when the two sets of X-axis centering rods 21 are in place, automatically charging the drone 5, and transmitting data from the drone 5.

[0040] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A landing platform structure for automatic homing of a drone, characterized by: The take-off and landing platform structure includes a take-off and landing platform, a centering linkage mechanism for centering the UAV, a push rod transmission mechanism, and a power drive mechanism. The centering linkage mechanism is installed above the take-off and landing platform to center the UAV. The push rod transmission mechanism is installed on the bottom side of the take-off and landing platform. The power drive mechanism is installed on the bottom side of the take-off and landing platform. The power drive mechanism is connected to the push rod transmission mechanism. The centering linkage mechanism includes two sets of spaced X-axis centering rods and two sets of spaced Y-axis centering rods. The two sets of X-axis centering rods are arranged above the take-off and landing platform along the X-axis direction, and the two sets of Y-axis centering rods are arranged above the take-off and landing platform along the Y-axis direction. Both sets of X-axis centering rods are installed above the two sets of Y-axis centering rods. The push rod transmission mechanism includes an X-axis lead screw transmission module, an X-axis guide rail transmission assembly, a Y-axis lead screw transmission module, and a Y-axis guide rail transmission assembly. The X-axis lead screw transmission module and the X-axis guide rail transmission assembly are arranged opposite to each other and distributed on both sides of the bottom of the landing platform. The Y-axis lead screw transmission module and the Y-axis guide rail transmission assembly are arranged opposite to each other and distributed on the other two sides of the bottom of the landing platform. Both the X-axis lead screw transmission module and the Y-axis lead screw transmission module are connected to the power drive mechanism. The X-axis lead screw transmission module and the X-axis guide rail transmission assembly are respectively connected to the two ends of the two sets of X-axis centering rods. The Y-axis lead screw transmission module and the Y-axis guide rail transmission assembly are respectively connected to the two ends of the two sets of Y-axis centering rods.

2. The landing platform structure for automatic homing of drones according to claim 1, characterized in that: The X-axis lead screw transmission module includes a bidirectional X-axis lead screw with forward and reverse teeth and two X-axis lead screw sliders. The bidirectional X-axis lead screw is installed on one side of the bottom of the lifting platform along the X-axis. The two X-axis lead screw sliders are symmetrically mounted on the bidirectional X-axis lead screw. The top ends of the two X-axis lead screw sliders are respectively fixed to one end of two sets of X-axis centering rods. The Y-axis lead screw transmission module includes a bidirectional Y-axis lead screw with forward and reverse teeth and two Y-axis lead screw sliders. The bidirectional Y-axis lead screw is installed on one side of the bottom of the lifting platform along the Y-axis. The two Y-axis lead screw sliders are symmetrically mounted on the bidirectional Y-axis lead screw. The top ends of the two Y-axis lead screw sliders are respectively fixed to one end of two sets of Y-axis centering rods. One end of both the bidirectional X-axis lead screw and the bidirectional Y-axis lead screw is connected to the power drive mechanism.

3. The landing platform structure for automatic homing of drones according to claim 2, characterized in that: The X-axis lead screw transmission module also includes two sets of first bushings and two X-axis fixing seats. The two X-axis fixing seats are symmetrically fixed to one side of the bottom of the lifting platform. Each set of first bushings is fixed to each X-axis fixing seat. The two ends of the X-axis bidirectional lead screw pass through the two sets of first bushings respectively to install the X-axis lead screw on the bottom of the lifting platform.

4. The landing platform structure for automatic homing of drones according to claim 2, characterized in that: The Y-axis lead screw transmission module also includes two sets of second bushings and two Y-axis fixing seats. The two Y-axis fixing seats are symmetrically fixed to the other side of the bottom of the lifting platform. Each set of second bushings is fixed to each Y-axis fixing seat. The two ends of the Y-axis bidirectional lead screw pass through the two sets of second bushings respectively to install the Y-axis lead screw to the bottom of the lifting platform.

5. The take-off and landing platform structure for automatic centering of unmanned aerial vehicles according to claim 1, characterized in that: The X-axis guide rail transmission assembly includes an X-axis linear guide rail and two X-axis sliders that slide in conjunction with the X-axis linear guide rail. The X-axis linear guide rail is installed on the other side of the bottom of the landing platform along the X-axis and is distributed opposite to the X-axis bidirectional lead screw of the X-axis lead screw transmission module. The two X-axis sliders are slidably mounted on the X-axis linear guide rail, and the two X-axis sliders are respectively fixed to the other ends of two sets of X-axis centering rods. The Y-axis guide rail transmission assembly includes a Y-axis linear guide rail and two Y-axis sliders that slide in conjunction with the Y-axis linear guide rail. The Y-axis linear guide rail is installed on the other side of the bottom of the landing platform along the Y-axis and is distributed opposite to the Y-axis bidirectional lead screw of the Y-axis lead screw transmission module. The two Y-axis sliders are slidably mounted on the Y-axis linear guide rail, and the two Y-axis sliders are respectively fixed to the other ends of two sets of Y-axis centering rods.

6. The landing platform structure for automatic homing of drones according to claim 2, characterized in that: The power drive mechanism includes a geared motor, a first coupling, and a right-angle gearbox. The first coupling is located between the geared motor and the right-angle gearbox. One end of the first coupling is connected to the output shaft of the geared motor, and the other end of the first coupling is connected to the input shaft of the right-angle gearbox. The geared motor is connected to one end of the input shaft of the right-angle gearbox through the first coupling. The two output shafts of the right-angle gearbox are respectively connected to the X-axis bidirectional lead screw and the Y-axis bidirectional lead screw.

7. The landing platform structure for automatic homing of drones according to claim 6, characterized in that: The right-angle gearbox is equipped with a first bevel gear, a second bevel gear, and a drive shaft. The second bevel gear is arranged on one side of the first bevel gear and meshes with it. The first bevel gear is mounted on the drive shaft. The first bevel gear is connected to the other end of the input shaft of the right-angle gearbox. The second bevel gear is connected to one output shaft of the right-angle gearbox. The first bevel gear is connected to the other output shaft of the right-angle gearbox through the drive shaft.

8. The landing platform structure for automatic homing of drones according to claim 6, characterized in that: The geared motor is a power motor with a gearbox.

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