A rigid chain based unmanned aerial vehicle landing platform

Abstract

This utility model discloses a rigid chain-based drone lifting platform, relating to the field of drone technology. It includes a drone platform and a rigid chain lifting platform, which drives the drone platform to lift and lower. The rigid chain lifting platform comprises a scissor mechanism and a rigid chain body. The scissor mechanism is located at the bottom of the drone platform, and the rigid chain body is mounted on the scissor mechanism, driving the scissor mechanism and thus the drone platform to lift and lower. This solves the problems of large size, slow response, and poor wind resistance stability of current drone lifting platforms.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a UAV lifting platform based on a rigid chain. Background Technology

[0002] With the rapid development of technology, drones are being used more and more widely in various fields. From efficiently achieving "last-mile" delivery in logistics, to precisely controlling pests and diseases and applying fertilizers to crops in agricultural plant protection; from timely detection of potential faults in power transmission lines during power line inspections, to capturing stunning and unique visual images in aerial photography; from rapidly responding to fire scenes in high-altitude firefighting, to building crucial communication bridges in disaster environments in emergency communications, drones are playing an irreplaceable and vital role. During drone operations, the performance of its landing platform directly affects the efficiency, accuracy, and safety of the operation.

[0003] Traditional drone lifting platforms mostly employ hydraulic or screw-driven methods. Hydraulic drive systems transmit power through fluid pressure to achieve platform lifting; however, this method has many drawbacks. Because hydraulic systems require numerous hydraulic components, such as pumps, cylinders, and pipes, the entire lifting platform is bulky. In space-constrained applications, such as vehicle-mounted drone lifting platforms or low-altitude work platforms in urban environments, its excessive size severely limits flexible deployment and use. Simultaneously, hydraulic systems have a relatively slow response time; there is a significant delay between receiving the lifting command and the platform initiating movement. This is particularly disadvantageous when rapidly adjusting the drone's altitude to respond to emergencies, easily leading to decreased operational accuracy and even safety accidents. Furthermore, hydraulic systems are sensitive to ambient temperature; changes in hydraulic oil viscosity at high or low temperatures affect system performance stability, further reducing platform reliability. Screw-driven lifting platforms utilize the relative movement of a screw and nut pair to achieve platform lifting. While screw drives offer a certain degree of precision, they also face some insurmountable challenges. During operation, lead screws are prone to wear due to axial forces and friction, which not only affects their lifespan but also leads to a decrease in the accuracy of the platform during lifting. Furthermore, lead screw-driven lifting platforms have relatively slow lifting speeds, making them unsuitable for applications requiring high drone takeoff and landing efficiency. Additionally, in adverse weather conditions such as strong winds, lead screw-driven platforms exhibit poor wind resistance, making drones susceptible to wind interference during ascent and descent, causing swaying or even tilting, seriously threatening the safe takeoff and landing of the drone.

[0004] Given the problems of traditional hydraulic and screw-driven drone lifting platforms, such as large size, slow response, and poor wind resistance, there is an urgent need for a new driving method to improve the performance of drone lifting platforms. Utility Model Content

[0005] Based on this, and in response to the above problems, this utility model proposes a drone lifting platform based on a rigid chain, which solves the problems of large size, slow response, and poor wind resistance stability of current drone lifting platforms.

[0006] The technical solution of this utility model is:

[0007] A rigid chain-based drone lifting platform includes:

[0008] Unmanned aerial vehicle (UAV) platform;

[0009] Rigid chain lifting platform, used to drive the lifting and lowering of drone platforms;

[0010] The rigid chain lifting platform includes a scissor mechanism and a rigid chain body. The scissor mechanism is located at the bottom of the drone platform, and the rigid chain body is located on the scissor mechanism, which is used to drive the scissor mechanism and thus drive the drone platform to lift and lower.

[0011] Preferably, the scissor lift mechanism includes a mounting frame, a mounting plate, a pair of scissor lift structures, a pair of first sliding members, and a pair of second sliding members. The mounting plate is disposed above the mounting frame. The pair of first sliding members are disposed on the mounting frame and located on both sides of the mounting frame. The pair of second sliding members are disposed on the mounting plate and cooperate with the pair of first sliding members. The pair of scissor lift structures are disposed between the mounting plate and the mounting frame. The upper end of one side of the scissor lift structure is rotatably connected to the mounting plate, and the lower end is rotatably connected to the mounting frame. The upper end of the other side of the scissor lift structure is rotatably connected to the second sliding member, and the lower end is rotatably connected to the first sliding member.

[0012] Preferably, both the first sliding member and the second sliding member include a sliding rail and a sliding mounting block. The sliding rail in the first sliding member is fixedly connected to the mounting frame by bolts, and the sliding rail in the second sliding member is fixedly connected to the mounting plate by bolts. The sliding mounting block is disposed on the sliding rail and is slidably connected to the sliding rail.

[0013] Preferably, the scissor lift structure includes a first scissor lift and a second scissor lift, with the middle of the first scissor lift rotatably connected to the middle of the second scissor lift. One end of the first scissor lift is rotatably connected to the mounting plate, and the other end is rotatably connected to the sliding mounting block in the first sliding member. One end of the second scissor lift is rotatably connected to the mounting bracket, and the other end is rotatably connected to the sliding mounting block in the second sliding member.

[0014] Preferably, the mounting frame has a fixing plate in the middle, the rigid chain body is mounted on the fixing plate and fixedly connected to the fixing plate by bolts, and the ends of the chain segments of the rigid chain body are fixedly connected to the bottom of the mounting plate by bolts.

[0015] Preferably, the drone platform is positioned above the mounting plate, which is equipped with a leveling component. One end of the leveling component is connected to the mounting plate, and the other end is connected to the drone platform. The leveling component is used to adjust the angle of the drone platform.

[0016] Preferably, the leveling assembly includes an electronic gyroscope and four leveling mechanisms. The electronic gyroscope is located in the center of the mounting plate, and the four leveling mechanisms are mounted on the mounting plate in cooperation. Each leveling mechanism includes a fixed-axis push rod stepper motor, a radial joint bearing, an annular pressure sensor, and a connecting screw. The fixed-axis push rod stepper motor is fixedly connected to the mounting plate by bolts. The telescopic rod end of the fixed-axis push rod stepper motor has a mounting groove. The radial joint bearing is located in the mounting groove, and the outer ring of the radial joint bearing is fixedly connected to the inner sidewall of the mounting groove. The annular pressure sensor is located in the inner ring of the radial joint bearing, and the outer sidewall of the annular pressure sensor is threadedly connected to the inner sidewall of the inner ring of the radial joint bearing. The connecting screw is located on the top of the UAV platform. One end of the connecting screw passes through the UAV platform and is threadedly connected to the UAV platform. The end of the connecting screw that passes through the UAV platform is threadedly connected to the inner sidewall of the annular pressure sensor.

[0017] Preferably, the drone platform includes a landing platform and a centering component. The centering component is set on the landing platform for drone centering. The centering component includes an X-axis centering structure and a Y-axis centering structure. The X-axis centering structure is set along the X-axis, and the Y-axis centering structure is set along the Y-axis. The X-axis and Y-axis are perpendicular to each other.

[0018] Preferably, the X-axis centering structure includes a first X-axis drive component, a second X-axis drive component, and a pair of X-axis centering rods. The first and second X-axis drive components are respectively disposed on both sides of the bottom of the parking platform. Each of the first and second X-axis drive components includes a bidirectional X-axis screw, an X-axis drive motor, and a pair of X-axis threaded blocks. X-axis mounting seats are provided at both ends of the bidirectional X-axis screw, and the X-axis mounting seats are fixedly connected to the bottom of the parking platform. Both ends of the bidirectional X-axis screw are rotatably connected to the X-axis mounting seats. The X-axis drive motor is mounted on the parking platform. At the bottom, and in conjunction with the X-axis bidirectional screw, it is used to drive the X-axis bidirectional screw. A pair of X-axis threaded blocks are respectively set at both ends of the X-axis bidirectional screw and threadedly connected to the X-axis bidirectional screw. The two ends of one X-axis centering rod are respectively fixedly connected to one of the X-axis threaded blocks in the first X-axis drive component and the second X-axis drive component by bolts. The two ends of the other X-axis centering rod are respectively fixedly connected to the other X-axis threaded block in the first X-axis drive component and the second X-axis drive component by bolts. There is a gap between the pair of X-axis centering rods and the stopping platform.

[0019] Preferably, the Y-axis centering structure includes a first Y-axis drive component, a second Y-axis drive component, and a pair of Y-axis centering rods. The first and second Y-axis drive components are respectively located on the other two sides of the bottom of the parking platform. Each of the first and second Y-axis drive components includes a Y-axis bidirectional screw, a Y-axis drive motor, and a pair of Y-axis threaded blocks. Y-axis mounting seats are provided at both ends of the Y-axis bidirectional screw, and the Y-axis mounting seats are fixedly connected to the bottom of the parking platform. Both ends of the Y-axis bidirectional screw are rotatably connected to the Y-axis mounting seats. The Y-axis drive motor is located on the parking platform. The bottom of the platform is equipped with a Y-axis bidirectional screw for driving the Y-axis bidirectional screw. A pair of Y-axis threaded blocks are respectively set at both ends of the Y-axis bidirectional screw and threadedly connected to the Y-axis bidirectional screw. The two ends of one Y-axis centering rod are respectively fixedly connected to one Y-axis threaded block of the first Y-axis drive component and the second Y-axis drive component by bolts. The two ends of the other Y-axis centering rod are respectively fixedly connected to the other Y-axis threaded block of the first Y-axis drive component and the second Y-axis drive component by bolts. There is a gap between the pair of Y-axis centering rods and the stopping platform.

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

[0021] This invention utilizes a rigid chain main body to drive a scissor mechanism, thereby achieving the lifting and lowering of a drone platform. Compared to traditional hydraulic or screw-driven technologies, this invention reduces the overall size of the drone lifting platform through the compact modular structure and high strength of the rigid chain main body, making it suitable for space-constrained scenarios. The direct-drive transmission method of the rigid chain main body effectively eliminates the delay of hydraulic systems or the long-distance transmission loss of screws, achieving rapid response. The high bending resistance of the rigid chain combined with the stable support performance of the scissor mechanism effectively resists strong wind interference, ensuring more stable drone takeoff and landing. This solves the problems of large size, slow response, and poor wind resistance stability of current drone lifting platforms. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a UAV lifting platform based on a rigid chain, as described in this embodiment of the utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of a UAV lifting platform based on a rigid chain, as described in this embodiment of the utility model. Figure 2;

[0025] Figure 3 This is a schematic diagram of the structure of a UAV lifting platform based on a rigid chain, as described in this embodiment of the utility model. Figure 3 ;

[0026] Figure 4 This is a schematic diagram of the structure of a UAV lifting platform based on a rigid chain, as described in this embodiment of the utility model. Figure 4 ;

[0027] Figure 5 This is a partial structural diagram of a rigid chain-based UAV lifting platform as described in an embodiment of this utility model. Figure 1 ;

[0028] Figure 6 This is an enlarged structural schematic diagram of the leveling mechanism described in the embodiments of this utility model;

[0029] Figure 7 This is a partial structural diagram of a rigid chain-based UAV lifting platform as described in an embodiment of this utility model. Figure 2 ;

[0030] Explanation of reference numerals in the attached figures:

[0031] 10-UAV platform, 11-Landing platform, 12-Centering component, 100-X-axis centering structure, 101-Y-axis centering structure, 102-First X-axis drive component, 103-Second X-axis drive component, 104-X-axis centering rod, 105-X-axis bidirectional screw, 106-X-axis drive motor, 107-X-axis threaded block, 108-X-axis mounting base, 109-First Y-axis drive component, 110-Second Y-axis drive component, 111-Y-axis centering rod, 112-Y-axis bidirectional screw, 113-Y-axis drive motor, 114-Y-axis threaded block, 115-Y-axis mounting base, 116-First pulley structure, 117-Second pulley structure, 118-Laser alignment Preliminary equipment, 119-Driving wheel, 120-Driven wheel, 121-Transmission belt, 20-Rigid chain lifting platform, 21-Scissor mechanism, 22-Rigid chain body, 200-Mounting frame, 201-Mounting plate, 202-Scissor structure, 203-First sliding member, 204-Second sliding member, 205-Sliding rail, 206-Sliding mounting block, 207-First scissor lever, 208-Second scissor lever, 209-Fixed plate, 30-Leveling assembly, 31-Electronic gyroscope, 32-Leveling mechanism, 300-Fixed shaft push rod stepper motor, 301-Radial joint bearing, 302-Annular pressure sensor, 303-Connecting screw, 304-Mounting groove. Detailed Implementation

[0032] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0033] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0034] 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 the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0036] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0038] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0039] Example:

[0040] like Figures 1 to 7 As shown, this embodiment discloses a drone lifting platform based on a rigid chain, comprising:

[0041] Unmanned aerial vehicle platform 10;

[0042] Rigid chain lifting platform 20, which is used to drive the drone platform 10 to lift.

[0043] The rigid chain lifting platform 20 includes a scissor mechanism 21 and a rigid chain body 22. The scissor mechanism 21 is located at the bottom of the drone platform 10, and the rigid chain body 22 is located on the scissor mechanism 21, which is used to drive the scissor mechanism 21 and thus drive the drone platform 10 to lift.

[0044] This invention uses a rigid chain body 22 to drive a scissor mechanism 21, thereby achieving the lifting and lowering of the drone platform 10. Compared to traditional hydraulic or screw-driven technologies, this invention reduces the overall size of the drone lifting platform through the compact modular structure and high strength of the rigid chain body 22, making it suitable for space-constrained scenarios. The direct-drive transmission method of the rigid chain body 22 effectively eliminates the delay of the hydraulic system or the long-distance transmission loss of the screw, achieving rapid response. The high bending resistance of the rigid chain combined with the stable support performance of the scissor mechanism 21 effectively resists strong wind interference, ensuring more stable drone takeoff and landing. This solves the problems of large size, slow response, and poor wind resistance of current drone lifting platforms.

[0045] To make the scissor lift mechanism 21 more stable and smooth in use, this embodiment is an improvement on the above embodiment. The difference from the above embodiment is that the scissor lift mechanism 21 includes a mounting frame 200, a mounting plate 201, a pair of scissor lift structures 202, a pair of first sliding members 203, and a pair of second sliding members 204. The mounting plate 201 is disposed above the mounting frame 200. The pair of first sliding members 203 are disposed on the mounting frame 200 and are respectively located on both sides of the mounting frame 200. The pair of second sliding members 204 are disposed on the mounting plate 201 and cooperate with the pair of first sliding members 203. The pair of scissor lift structures 202 are disposed between the mounting plate 201 and the mounting frame 200. The upper end of one side of the scissor lift structure 202 is rotatably connected to the mounting plate 201, and the lower end is rotatably connected to the mounting frame 200. The upper end of the other side of the scissor lift structure 202 is rotatably connected to the second sliding member 204, and the lower end is rotatably connected to the first sliding member 203.

[0046] The first sliding member 203 and the second sliding member 204 both include a sliding rail 205 and a sliding mounting block 206. The sliding rail 205 in the first sliding member 203 is fixedly connected to the mounting frame 200 by bolts, and the sliding rail 205 in the second sliding member 204 is fixedly connected to the mounting plate 201 by bolts. The sliding mounting block 206 is disposed on the sliding rail 205 and is slidably connected to the sliding rail 205.

[0047] The scissor lift structure 202 includes a first scissor lift 207 and a second scissor lift 208. The middle part of the first scissor lift 207 is rotatably connected to the middle part of the second scissor lift 208. One end of the first scissor lift 207 is rotatably connected to the mounting plate 201, and the other end is rotatably connected to the sliding mounting block 206 in the first sliding member 203. One end of the second scissor lift 208 is rotatably connected to the mounting bracket 200, and the other end is rotatably connected to the sliding mounting block 206 in the second sliding member 204.

[0048] By setting a pair of first sliding members 203 and a pair of second sliding members 204, and rotatably connecting a pair of scissor lift structures 202 to the mounting plate 201, the mounting bracket 200, the pair of first sliding members 203, and the pair of second sliding members 204 respectively, the scissor lift mechanism 21 can be made more stable and smooth to use by sliding the mounting block 206 and sliding the track 205 during use.

[0049] To facilitate the installation of the rigid chain body 22, this embodiment is an improvement on the above embodiment. The difference from the above embodiment is that the mounting frame 200 has a fixing plate 209 in the middle, the rigid chain body 22 is set on the fixing plate 209 and is fixedly connected to the fixing plate 209 by bolts, and the end of the chain segment of the rigid chain body 22 is fixedly connected to the bottom of the mounting plate 201 by bolts.

[0050] The rigid chain body 22 can be a motor-driven rigid chain, which is a driving method that enables the functions of this utility model in the prior art. Using a motor-driven rigid chain can effectively eliminate hydraulic system delays or long-distance transmission losses in the lead screw, achieving rapid response.

[0051] In order to correct the tilt angle of the drone platform 10 during use and to better center the drone, this embodiment is an improvement on the above embodiment. The difference from the above embodiment is that the drone platform 10 is set above the mounting plate 201. The mounting plate 201 is provided with a leveling component 30. One end of the leveling component 30 is connected to the mounting plate 201 and the other end is connected to the drone platform 10. The leveling component 30 is used to adjust the angle of the drone platform 10.

[0052] The leveling assembly 30 includes an electronic gyroscope 31 and four leveling mechanisms 32. The electronic gyroscope 31 is located in the middle of the mounting plate 201, and the four leveling mechanisms 32 are mounted on the mounting plate 201. Each leveling mechanism 32 includes a fixed-axis push rod stepper motor 300, a radial joint bearing 301, a ring pressure sensor 302, and a connecting screw 303. The fixed-axis push rod stepper motor 300 is fixedly connected to the mounting plate 201 by bolts. The telescopic rod end of the fixed-axis push rod stepper motor 300 is provided with a mounting groove 304, and the radial joint bearing 301 is disposed in the mounting groove 304. 4. The outer ring of the radial joint bearing 301 is fixedly connected to the inner wall of the mounting groove 304. The annular pressure sensor 302 is disposed in the inner ring of the radial joint bearing 301. The outer wall of the annular pressure sensor 302 is threadedly connected to the inner wall of the inner ring of the radial joint bearing 301. The connecting screw 303 is disposed on the top of the UAV platform 10. One end of the connecting screw 303 passes through the UAV platform 10 and is threadedly connected to the UAV platform 10. The end of the connecting screw 303 that passes through the UAV platform 10 is threadedly connected to the inner wall of the annular pressure sensor 302.

[0053] In use, the tilt angle of the drone platform 10 can be effectively detected by setting up the ring pressure sensor 302 and the electronic gyroscope 31. Then, the tilt angle of the drone platform 10 can be corrected by extending the telescopic rods of the four fixed-axis push rod stepper motors 300. The radial joint bearing 301 and the connecting screw 303 facilitate the connection of the telescopic rods of the fixed-axis push rod stepper motors 300 to the drone platform 10.

[0054] The ring pressure sensor 302 and the electronic gyroscope 31 are respectively employed in the prior art to achieve the functions of this utility model. Their specific structures are not within the protection scope of this utility model, and therefore will not be described in detail.

[0055] To facilitate the centering of the drone, this embodiment is an improvement on the above embodiment. The difference from the above embodiment is that the drone platform 10 includes a parking platform 11 and a centering component 12. The centering component 12 is disposed on the parking platform 11 and is used for the centering of the drone.

[0056] The centering component 12 can be the centering component 12 used in the existing UAV platform 10, or it can adopt the following structure:

[0057] The centering component 12 includes an X-axis centering structure 100 and a Y-axis centering structure 101. The X-axis centering structure 100 is set along the X-axis, and the Y-axis centering structure 101 is set along the Y-axis. The X-axis and Y-axis are perpendicular to each other.

[0058] The X-axis centering structure 100 includes a first X-axis drive 102, a second X-axis drive 103, and a pair of X-axis centering rods 104. The first X-axis drive 102 and the second X-axis drive 103 are respectively disposed on both sides of the bottom of the parking platform 11. Both the first X-axis drive 102 and the second X-axis drive 103 include an X-axis bidirectional screw 105, an X-axis drive motor 106, and a pair of X-axis threaded blocks 107. X-axis mounting seats 108 are respectively provided at both ends of the X-axis bidirectional screw 105. The X-axis mounting seats 108 are fixedly connected to the bottom of the parking platform 11, and the two ends of the X-axis bidirectional screw 105 are rotatably connected to the X-axis mounting seats 108. The X-axis drive motor 106 is disposed on the bottom of the parking platform 11. The bottom of the machine platform 11 is equipped with an X-axis bidirectional screw 105 for driving the X-axis bidirectional screw 105. A pair of X-axis threaded blocks 107 are respectively disposed at both ends of the X-axis bidirectional screw 105 and threadedly connected to the X-axis bidirectional screw 105. The two ends of one X-axis centering rod 104 are respectively fixedly connected to one of the X-axis threaded blocks 107 in the first X-axis drive component 102 and the second X-axis drive component 103 by bolts. The two ends of the other X-axis centering rod 104 are respectively fixedly connected to the other X-axis threaded block 107 in the first X-axis drive component 102 and the second X-axis drive component 103 by bolts. There is a gap between the pair of X-axis centering rods 104 and the machine platform 11.

[0059] The Y-axis centering structure 101 includes a first Y-axis drive 109, a second Y-axis drive 110, and a pair of Y-axis centering rods 111. The first Y-axis drive 109 and the second Y-axis drive 110 are respectively located on the other two sides of the bottom of the parking platform 11. Both the first Y-axis drive 109 and the second Y-axis drive 110 include a Y-axis bidirectional screw 112, a Y-axis drive motor 113, and a pair of Y-axis threaded blocks 114. Y-axis mounting seats 115 are respectively provided at both ends of the Y-axis bidirectional screw 112. The Y-axis mounting seats 115 are fixedly connected to the bottom of the parking platform 11, and the two ends of the Y-axis bidirectional screw 112 are rotatably connected to the Y-axis mounting seats 115. The Y-axis drive motor 113 is located on the bottom of the parking platform 11. The bottom of the machine platform 11 is equipped with a Y-axis bidirectional screw 112 for driving the Y-axis bidirectional screw 112. A pair of Y-axis threaded blocks 114 are respectively disposed at both ends of the Y-axis bidirectional screw 112 and threadedly connected to the Y-axis bidirectional screw 112. The two ends of one Y-axis centering rod 111 are respectively fixedly connected to one of the Y-axis threaded blocks 114 in the first Y-axis drive component 109 and the second Y-axis drive component 110 by bolts. The two ends of the other Y-axis centering rod 111 are respectively fixedly connected to the other Y-axis threaded block 114 in the first Y-axis drive component 109 and the second Y-axis drive component 110 by bolts. There is a gap between the pair of Y-axis centering rods 111 and the machine platform 11.

[0060] By using the X-axis centering structure 100 and the Y-axis centering structure 101 together, the drone can be effectively centered.

[0061] It is important to note that a pair of X-axis centering rods 104 are arranged in parallel, and a pair of Y-axis centering rods 111 are also arranged in parallel. The pair of X-axis centering rods 104 and the pair of Y-axis centering rods 111 are fitted together. Both the X-axis bidirectional screw 105 and the Y-axis bidirectional screw 112 employ existing bidirectional reverse threaded rods. A bidirectional reverse threaded rod is a threaded rod structure with positive and negative threads at both ends. The positive thread extends from the middle of the rod to one end, and the negative thread extends from the middle of the rod to the other end. One X-axis threaded block 107 is threaded to the positive threaded end of the X-axis bidirectional screw 105, and the other X-axis threaded block 107 is threaded to the negative threaded end of the X-axis bidirectional screw 105. Similarly, the Y-axis threaded block 114 is arranged on the Y-axis bidirectional screw 112. This structure allows a pair of X-axis threaded blocks 107 to move closer or further away simultaneously when the X-axis bidirectional screw 105 rotates, and similarly allows a pair of Y-axis threaded blocks 114 to move closer or further away simultaneously when the Y-axis bidirectional screw 112 rotates, thereby enabling the UAV to return to center.

[0062] In one embodiment, as a further preferred embodiment, the X-axis drive motor 106 is connected to the X-axis bidirectional screw 105 via a first pulley structure 116, and the Y-axis drive motor 113 is connected to the Y-axis bidirectional screw 112 via a second pulley structure 117.

[0063] Both the first pulley structure 116 and the second pulley structure 117 include a driving pulley 119, a driven pulley 120, and a transmission belt 121. The transmission belt 121 is sleeved on the outside of the driving pulley 119 and the driven pulley 120 and meshes with the driving pulley 119 and the driven pulley 120 for transmission. In the first pulley structure 116, the driving pulley 119 is fixedly mounted on the output shaft of the X-axis drive motor 106, and the driven pulley 120 is fixedly mounted in the middle of the X-axis bidirectional screw 105. In the second pulley structure 117, the driving pulley 119 is fixedly mounted on the output shaft of the Y-axis drive motor 113, and the driven pulley 120 is fixedly mounted in the middle of the Y-axis bidirectional screw 112.

[0064] Taking the first X-axis drive unit 102 as an example, in use, the output shaft of the X-axis drive motor 106 in the first X-axis drive unit 102 drives the drive wheel 119, which in turn drives the transmission belt 121 and the driven wheel 120, thereby driving the X-axis bidirectional screw 105 to rotate, which in turn drives a pair of X-axis threaded blocks 107 to move closer or further away simultaneously. The second X-axis drive unit 103 operates on the same principle. Through the cooperation of the first X-axis drive unit 102 and the second X-axis drive unit 103, a pair of X-axis centering rods 104 can be moved closer or further away simultaneously, thus completing the centering or launch of the UAV in the X-axis direction.

[0065] Similarly, by cooperating with the first Y-axis drive 109 and the second Y-axis drive 110, a pair of Y-axis centering rods 111 can be moved closer or further away at the same time, thus completing the centering or launch of the UAV in the Y-axis direction.

[0066] In another embodiment, as a further preferred embodiment, the X-axis drive motor 106 and the middle of the X-axis bidirectional screw 105 can also be connected and driven by a gear transmission structure in the prior art, and the Y-axis drive motor 113 and the middle of the Y-axis bidirectional screw 112 can also be connected and driven by a gear transmission structure in the prior art.

[0067] Unlike the first pulley structure 116 and the second pulley structure 117, when a gear transmission structure is adopted, the X-axis drive motor 106 and the middle part of the X-axis bidirectional screw 105 are driven by a pair of meshing gears, and the Y-axis drive motor 113 and the middle part of the Y-axis bidirectional screw 112 are also driven by a pair of meshing gears.

[0068] The two transmission methods can be selected according to actual needs.

[0069] As a further preferred embodiment, the drone platform 10 is equipped with a laser alignment device 118. The laser alignment device 118 can be a laser emitting device that can achieve the functions of this invention in the prior art. The laser emitting device forms a crosshair or target point, which can guide the drone to land within a controllable range.

[0070] Working principle of this utility model:

[0071] First, the drone lifting platform described in this invention is transported to a designated location using a transport vehicle. Then, the rigid chain body 22 drives the scissor mechanism 21, thereby driving the drone platform 10 to rise to a designated height. After the drone platform 10 rises to the designated height, a pair of X-axis drive motors 106 and a pair of Y-axis drive motors 113 start working, causing a pair of X-axis centering rods 104 and a pair of Y-axis centering rods 111 to move away simultaneously, thereby releasing the drone to begin operation. After the drone is released, the pair of X-axis drive motors 106 and the pair of Y-axis drive motors 113 stop. After the drone completes its operation, guided by the laser alignment device 118, the drone lands on the drone platform 10. Then, the tilt angle of the drone platform 10 is corrected by the electronic gyroscope 31 and four leveling mechanisms 32. Then, a pair of X-axis drive motors 106 and a pair of Y-axis drive motors 113 start working, which causes a pair of X-axis centering rods 104 and a pair of Y-axis centering rods 111 to move closer together, thereby centering the drone. Then, the rigid chain body 22 drives the scissor mechanism 21, which in turn drives the drone platform 10 to rise to the designated height, completing the operation.

[0072] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0073] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A UAV lifting platform based on a rigid chain, characterized in that, include: Unmanned aerial vehicle platform (10); Rigid chain lifting platform (20) is used to drive the UAV platform (10) to lift. Among them, the rigid chain lifting platform (20) includes a scissor mechanism (21) and a rigid chain body (22). The scissor mechanism (21) is located at the bottom of the drone platform (10), and the rigid chain body (22) is located on the scissor mechanism (21) to drive the scissor mechanism (21) and thus drive the drone platform (10) to lift. The scissor mechanism (21) includes a mounting frame (200), a mounting plate (201), a pair of scissor structures (202), a pair of first sliding members (203), and a pair of second sliding members (204). The mounting plate (201) is disposed above the mounting frame (200). The pair of first sliding members (203) are disposed on the mounting frame (200) and are located on both sides of the mounting frame (200). The pair of second sliding members (204) are disposed on the mounting plate (201) and cooperate with the pair of first sliding members (203). The pair of scissor structures (202) are disposed between the mounting plate (201) and the mounting frame (200). The upper end of one side of the scissor structure (202) is rotatably connected to the mounting plate (201), and the lower end is rotatably connected to the mounting frame (200). The upper end of the other side of the scissor structure (202) is rotatably connected to the second sliding member (204), and the lower end is rotatably connected to the first sliding member (203). The drone platform (10) is set above the mounting plate (201). The mounting plate (201) is provided with a leveling component (30). One end of the leveling component (30) is connected to the mounting plate (201), and the other end is connected to the drone platform (10). The leveling component (30) is used to adjust the angle of the drone platform (10).

2. The UAV lifting platform based on a rigid chain according to claim 1, characterized in that, The first sliding member (203) and the second sliding member (204) both include a sliding rail (205) and a sliding mounting block (206). The sliding rail (205) in the first sliding member (203) is fixedly connected to the mounting bracket (200) by bolts, and the sliding rail (205) in the second sliding member (204) is fixedly connected to the mounting plate (201) by bolts. The sliding mounting block (206) is set on the sliding rail (205) and is slidably connected to the sliding rail (205).

3. The UAV lifting platform based on a rigid chain according to claim 2, characterized in that, The scissor lift structure (202) includes a first scissor lift (207) and a second scissor lift (208). The middle part of the first scissor lift (207) is rotatably connected to the middle part of the second scissor lift (208). One end of the first scissor lift (207) is rotatably connected to the mounting plate (201), and the other end is rotatably connected to the sliding mounting block (206) in the first sliding member (203). One end of the second scissor lift (208) is rotatably connected to the mounting bracket (200), and the other end is rotatably connected to the sliding mounting block (206) in the second sliding member (204).

4. The UAV lifting platform based on a rigid chain according to claim 3, characterized in that, The mounting bracket (200) has a fixing plate (209) in the middle. The rigid chain body (22) is set on the fixing plate (209) and is fixedly connected to the fixing plate (209) by bolts. The end of the chain segment of the rigid chain body (22) is fixedly connected to the bottom of the mounting plate (201) by bolts.

5. The UAV lifting platform based on a rigid chain according to claim 4, characterized in that, The leveling assembly (30) includes an electronic gyroscope (31) and four leveling mechanisms (32). The electronic gyroscope (31) is located in the middle of the mounting plate (201), and the four leveling mechanisms (32) are mounted on the mounting plate (201). Each leveling mechanism (32) includes a fixed-axis push rod stepper motor (300), a radial joint bearing (301), a ring pressure sensor (302), and a connecting screw (303). The fixed-axis push rod stepper motor (300) is fixedly connected to the mounting plate (201) by bolts. The telescopic rod end of the fixed-axis push rod stepper motor (300) is provided with a mounting groove (304), and the radial joint bearing (301) is located in the mounting groove. (304) Inside, and the outer ring of the radial joint bearing (301) is fixedly connected to the inner side wall of the mounting groove (304). The annular pressure sensor (302) is set inside the inner ring of the radial joint bearing (301). The outer side wall of the annular pressure sensor (302) is threadedly connected to the inner side wall of the inner ring of the radial joint bearing (301). The connecting screw (303) is set on the top of the drone platform (10). One end of the connecting screw (303) passes through the drone platform (10) and is threadedly connected to the drone platform (10). The end of the connecting screw (303) that passes through the drone platform (10) is threadedly connected to the inner side wall of the annular pressure sensor (302).

6. The UAV lifting platform based on a rigid chain according to claim 5, characterized in that, The UAV platform (10) includes a parking platform (11) and a centering component (12). The centering component (12) is set on the parking platform (11) for UAV centering. The centering component (12) includes an X-axis centering structure (100) and a Y-axis centering structure (101). The X-axis centering structure (100) is set along the X-axis, and the Y-axis centering structure (101) is set along the Y-axis. The X-axis and Y-axis are set perpendicular to each other.

7. The UAV lifting platform based on a rigid chain according to claim 6, characterized in that, The X-axis centering structure (100) includes a first X-axis drive (102), a second X-axis drive (103), and a pair of X-axis centering rods (104). The first X-axis drive (102) and the second X-axis drive (103) are respectively located on both sides of the bottom of the parking platform (11). Both the first X-axis drive (102) and the second X-axis drive (103) include an X-axis bidirectional screw (105), an X-axis drive motor (106), and a pair of X-axis threaded blocks (107). X-axis mounting seats (108) are respectively provided at both ends of the X-axis bidirectional screw (105). The X-axis mounting seats (108) are fixedly connected to the bottom of the parking platform (11). The two ends of the X-axis bidirectional screw (105) are rotatably connected to the X-axis mounting seats (108). The X-axis drive motor (106) is provided with... At the bottom of the stopping platform (11), and in cooperation with the X-axis bidirectional screw (105), a pair of X-axis threaded blocks (107) are respectively set at both ends of the X-axis bidirectional screw (105) and threadedly connected to the X-axis bidirectional screw (105). The two ends of one X-axis centering rod (104) are respectively fixedly connected to one of the X-axis threaded blocks (107) of the first X-axis drive (102) and the second X-axis drive (103) by bolts. The two ends of the other X-axis centering rod (104) are respectively fixedly connected to the other X-axis threaded block (107) of the first X-axis drive (102) and the second X-axis drive (103) by bolts. There is a gap between the pair of X-axis centering rods (104) and the stopping platform (11).

8. The UAV lifting platform based on a rigid chain according to claim 7, characterized in that, The Y-axis centering structure (101) includes a first Y-axis drive (109), a second Y-axis drive (110), and a pair of Y-axis centering rods (111). The first Y-axis drive (109) and the second Y-axis drive (110) are respectively located on the other two sides of the bottom of the parking platform (11). Both the first Y-axis drive (109) and the second Y-axis drive (110) include a Y-axis bidirectional screw (112), a Y-axis drive motor (113), and a pair of Y-axis threaded blocks (114). Y-axis mounting seats (115) are provided at both ends of the Y-axis bidirectional screw (112). The Y-axis mounting seats (115) are fixedly connected to the bottom of the parking platform (11), and the two ends of the Y-axis bidirectional screw (112) are rotatably connected to the Y-axis mounting seats (115). The Y-axis drive motor (113) is provided with... The Y-axis bidirectional screw (112) is placed at the bottom of the stopping platform (11) and is configured to drive the Y-axis bidirectional screw (112). A pair of Y-axis threaded blocks (114) are respectively set at both ends of the Y-axis bidirectional screw (112) and are threadedly connected to the Y-axis bidirectional screw (112). The two ends of one Y-axis centering rod (111) are respectively fixedly connected to one of the Y-axis threaded blocks (114) of the first Y-axis drive (109) and the second Y-axis drive (110) by bolts. The two ends of the other Y-axis centering rod (111) are respectively fixedly connected to the other Y-axis threaded block (114) of the first Y-axis drive (109) and the second Y-axis drive (110) by bolts. There is a gap between the pair of Y-axis centering rods (111) and the stopping platform (11).

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