A folding landing gear for drones

Abstract

This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a folding landing gear for UAVs. It includes a main body plate, with UAV fixing blocks fixedly connected to both the front and rear ends of the main body plate. Mounting plates are fixedly connected to the front and rear lower ends of the main body plate. A guide groove is formed in the middle of the lower end of the main body plate. A control mechanism is mounted between the two mounting plates. Connecting components are fixedly connected to the left and right ends of the main body plate. Two support components are mounted on the control mechanism. This folding landing gear for UAVs, when folded, does not protrude outwards, effectively preventing collisions with obstacles during low-altitude flight and protecting the UAV structure. Simultaneously, the compact structure significantly reduces wind resistance during flight, lowers energy consumption, helps extend the UAV's endurance, and reduces the impact of wind resistance on flight stability, ensuring the quality of aerial photography and data acquisition operations.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a folding landing gear for UAVs. Background Technology

[0002] As an emerging intelligent equipment, drones have demonstrated powerful application value in numerous fields. In aerial photography, they can capture unique aerial perspectives, providing convenience for film and television production, geographic surveying, and other fields; in agriculture, they can achieve precise sowing, fertilization, and pest and disease monitoring; and in power line inspection, they can replace manual labor in conducting comprehensive inspections of transmission lines, greatly improving work efficiency and safety.

[0003] However, existing drone landing gear is directly fixed to the lower part of the drone and always remains in a supported, deployed state. In special scenarios such as low-altitude flight, it is highly susceptible to collisions with obstacles such as trees and buildings, causing structural damage to the drone and affecting its normal use and lifespan. In addition, the deployed landing gear increases wind resistance during flight, which not only increases the drone's energy consumption and shortens its flight time, but also adversely affects flight stability, leading to problems such as shaky aerial footage and inaccurate data acquisition. Therefore, we have introduced a folding landing gear for drones. Utility Model Content

[0004] The main objective of this invention is to provide a foldable landing gear for unmanned aerial vehicles (UAVs), which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A foldable landing gear for unmanned aerial vehicles (UAVs) includes a main body plate. UAV mounting blocks are fixedly connected to both the front and rear ends of the main body plate. Each of the two UAV mounting blocks has a through-hole for UAV mounting. Mounting plates are fixedly connected to the front and rear lower ends of the main body plate. A guide groove is formed in the middle of the lower end of the main body plate. A control mechanism is mounted between the two mounting plates. Connecting components are fixedly connected to the left and right ends of the main body plate. Two support components are mounted on the control mechanism.

[0007] Preferably, the control mechanism includes a motor base, a micro motor is fixedly installed on the lower inner wall of the motor base, a drive gear is fixedly installed on the output end of the micro motor, a driven gear is meshed with the outer surface of the drive gear, a threaded screw is fixedly connected to the rear end of the driven gear, a folding component is threadedly connected to the outer surface of the threaded screw, and the upper end of the motor base is fixedly connected to the lower end of the main body plate.

[0008] By adopting the above technical solution: a micro motor is fixed in the motor mount, and the drive gear and driven gear mesh to drive the screw to rotate, thereby driving the folding assembly to move, realizing the automatic folding and unfolding of the landing gear, and providing a power source and transmission basis for the landing gear operation.

[0009] Preferably, the front ends of the driving gear and the driven gear are both movably connected to the rear end of the front mounting plate via a rotating shaft, and the rear end of the threaded screw is movably connected to the front end of the rear mounting plate via a rotating shaft.

[0010] By adopting the above technical solution, the driving gear, driven gear, and screw are movably connected to the mounting plate through a rotating shaft, ensuring the stability and flexibility of the transmission process, reducing component wear, and ensuring efficient power transmission.

[0011] Preferably, the folding assembly includes a transmission block, with connecting rods fixedly connected to both the left and right ends of the transmission block. Fixing rods are fixedly connected to the outer surfaces of both connecting rods. A guide plate is fixedly connected to the upper ends of both fixing rods. First folding support rods are fixedly connected to the outer sides of both connecting rods. Second folding support rods are movably mounted on the middle of the outer sides of both first folding support rods via bearings. First sliding rods are fixedly connected to the upper outer surfaces of both first folding support rods. Second sliding rods are fixedly connected to the lower outer surfaces of both second folding support rods. The inner wall of the transmission block is threadedly connected to the outer surface of the threaded screw.

[0012] By adopting the above technical solution: the transmission block moves with the threaded screw, and drives the first folding support rod and the second folding support rod to rotate crosswise through the connecting rod. The guide plate and guide groove ensure smooth movement, realizing the folding and unfolding support of the landing gear. The structure is compact and has strong linkage.

[0013] Preferably, the connecting assembly includes two support rods. The right ends of the two support rods on the right side are fixedly connected to a first connecting frame. The right end of the first connecting frame on the right side has a first sliding groove that passes through from left to right. The left ends of the two support rods on the right side are fixedly connected to the right end of the main body plate.

[0014] By adopting the above technical solution: the first slide groove provides sliding space for the first slide bar, enhances the stability of the connection between the landing gear and the fuselage, and provides guiding support for the folding action.

[0015] Preferably, the support assembly includes a second connecting frame, with a second sliding groove through which the second connecting frame passes from left to right at its right end, and a base fixedly connected to the lower end of the second connecting frame, with a plurality of buffer pads fixedly connected to the lower end of the base.

[0016] By adopting the above technical solution: the second slide of the second connecting frame slides in conjunction with the second slide rod, and the base and the buffer pad contact the ground when landing. The buffer pad absorbs the impact, providing stable support for the drone and reducing vibration.

[0017] Preferably, the upper part of the guide plate is movably sleeved in the guide groove, and the two first folding support rods and the two second folding support rods are arranged in a cross pattern.

[0018] By adopting the above technical solution: the guide plate is sleeved in the guide groove to ensure accurate movement of the folding assembly; the first folding support rod and the second folding support rod are cross-set to enhance structural strength and improve the support stability after the landing gear is deployed.

[0019] Preferably, the lower outer sides of the two first folding support rods are respectively fixedly connected to the corresponding second connecting frame, and the upper outer sides of the two second folding support rods are respectively fixedly connected to the corresponding first connecting frame.

[0020] By adopting the above technical solution: the first folding support rod is fixed to the second connecting frame, and the second folding support rod is fixed to the first connecting frame, forming a linkage structure to ensure the synchronicity and reliability of the folding and unfolding actions.

[0021] Preferably, the two first slide rods are movably sleeved in the corresponding first slide grooves, and the two second slide rods are movably sleeved in the corresponding second slide grooves.

[0022] By adopting the above technical solution: the first slide rod slides in the first slide groove and the second slide rod slides in the second slide groove, restricting the movement trajectory of the first folding support rod and the second folding support rod, ensuring that the landing gear folding and unfolding process is smooth and orderly, and avoiding component displacement.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] In this invention, when the drone needs to perform low-altitude flight or enter special scenarios with obstacles, the micro motor in the motor mount of the control mechanism is activated. The output end of the micro motor drives the active gear to rotate, and the active gear meshes with the driven gear, causing the threaded screw at the rear end of the driven gear to rotate between the two mounting plates. When the threaded screw rotates, the transmission block of the folding assembly moves forward along the threaded screw, driving the connecting rods at the left and right ends to move forward synchronously. The guide plate at the upper end of the fixed rod slides forward along the guide groove at the lower end of the main body plate to ensure the stability of the movement. The forward movement of the connecting rod causes the first folding support rod and the second folding support rod to rotate around the bearing at the intersection point. The first sliding rod on the upper part of the outer side of the first folding support rod moves along the first connecting rod in the connecting assembly. The first slide rail of the frame slides, and the second slide bar on the lower outer side of the second folding support rod slides along the second slide rail of the second connecting frame in the support assembly. As the transmission block continues to move forward, the first folding support rod and the second folding support rod gradually fold and retract, driving the base of the support assembly to move upward until the base is close to the appropriate position of the lower end of the first connecting frame. The micro motor is then turned off, and the landing gear folding is completed. At this time, the folded landing gear will not protrude outward, effectively avoiding collisions with obstacles during low-altitude flight and protecting the UAV structure. At the same time, the compact structure greatly reduces wind resistance during flight, reduces energy consumption, helps extend the UAV's endurance, and reduces the impact of wind resistance on flight stability, ensuring the quality of aerial photography and data acquisition operations. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a foldable landing gear for a drone in its unfolded state, according to the present invention.

[0026] Figure 2 This is a schematic diagram of the overall structure of a foldable landing gear for a drone in its folded state, according to the present invention.

[0027] Figure 3 This is a bottom view of the main body plate of the foldable landing gear for a drone according to this utility model;

[0028] Figure 4 This is a schematic diagram of the control mechanism for a foldable landing gear of an unmanned aerial vehicle (UAV) according to this utility model.

[0029] Figure 5 This is a schematic diagram of the folding assembly of a folding landing gear for a drone according to the present invention.

[0030] Figure 6 This is a schematic diagram of the connecting assembly of a folding landing gear for an unmanned aerial vehicle (UAV) according to this utility model.

[0031] Figure 7 This is a structural schematic diagram of a support component for a foldable landing gear for an unmanned aerial vehicle (UAV) according to this utility model.

[0032] In the diagram: 1. Main body plate; 2. UAV mounting block; 3. UAV mounting hole; 4. Mounting plate; 5. Guide groove; 6. Control mechanism; 7. Connecting assembly; 8. Support assembly; 61. Motor base; 62. Micro motor; 63. Drive gear; 64. Driven gear; 65. Threaded screw; 66. Folding assembly; 661. Transmission block; 662. Connecting rod; 663. Fixing rod; 664. Guide plate; 665. First folding support rod; 666. Second folding support rod; 667. First slide rod; 668. Second slide rod; 71. Bearing rod; 72. First connecting frame; 73. First slide groove; 81. Second connecting frame; 82. Second slide groove; 83. Base; 84. Buffer pad. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing 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 this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Please see Figure 1-7 This utility model provides a technical solution:

[0037] A foldable landing gear for unmanned aerial vehicles (UAVs) includes a main body plate 1. UAV mounting blocks 2 are fixedly connected to the front and rear ends of the main body plate 1. Both UAV mounting blocks 2 have UAV mounting holes 3 that pass through the upper part of the upper part of the two UAV mounting blocks 2. Mounting plates 4 are fixedly connected to the front and rear lower parts of the main body plate 1. A guide groove 5 is opened in the middle of the lower part of the main body plate 1. A control mechanism 6 is installed between the two mounting plates 4. Connecting components 7 are fixedly connected to the left and right ends of the main body plate 1. Two support components 8 are installed on the control mechanism 6.

[0038] In this embodiment, the control mechanism 6 includes a motor base 61. A micro motor 62 is fixedly mounted on the lower inner wall of the motor base 61. A drive gear 63 is fixedly mounted on the output end of the micro motor 62. A driven gear 64 is meshed with the outer surface of the drive gear 63. A threaded screw 65 is fixedly connected to the rear end of the driven gear 64. A folding assembly 66 is threadedly connected to the outer surface of the threaded screw 65. The upper end of the motor base 61 is fixedly connected to the lower end of the main body plate 1. The front ends of the drive gear 63 and the driven gear 64 are both movably connected to the rear end of the front mounting plate 4 via a rotating shaft. The rear end of the threaded screw 65 is connected to the rear end of the rear mounting plate 4 via a rotating shaft. The front end of the mounting plate 4 is movably connected; the folding assembly 66 includes a transmission block 661, with connecting rods 662 fixedly connected to both the left and right ends of the transmission block 661. Fixing rods 663 are fixedly connected to the outer surfaces of both connecting rods 662. A guide plate 664 is fixedly connected to the upper ends of both fixing rods 663. First folding support rods 665 are fixedly connected to the outer surfaces of both connecting rods 662. Second folding support rods 666 are movably mounted on the middle of the outer surfaces of both first folding support rods 665 via bearings. First sliding rods 667 are fixedly connected to the upper outer surfaces of both first folding support rods 665. The lower outer side of the stacked support rod 666 is fixedly connected to the second slide rod 668, and the inner wall of the transmission block 661 is threadedly connected to the outer surface of the threaded screw 65; the connecting assembly 7 includes a bearing rod 71, and there are two bearing rods 71. The right ends of the two bearing rods 71 ​​on the right side are fixedly connected to the first connecting frame 72. The right end of the first connecting frame 72 on the right side has a first sliding groove 73 that passes through from left to right. The left ends of the two bearing rods 71 ​​on the right side are fixedly connected to the right end of the main body plate 1; the support assembly 8 includes a second connecting frame 81. The right end of the second connecting frame 81 on the right side has a second sliding groove 82 that passes through from left to right. The lower end of the second connecting frame 81 is fixedly connected to the second connecting frame 81. A base 83 is fixedly connected, and several buffer pads 84 are fixedly connected to the lower end of the base 83; the upper part of the guide plate 664 is movably sleeved in the guide groove 5; two first folding support rods 665 and two second folding support rods 666 are arranged in pairs and cross each other; the lower part of the outer side of the two first folding support rods 665 is fixedly connected to the corresponding second connecting frame 81, and the upper part of the outer side of the two second folding support rods 666 is fixedly connected to the corresponding first connecting frame 72; two first sliding rods 667 are movably sleeved in the corresponding first sliding groove 73, and two second sliding rods 668 are movably sleeved in the corresponding second sliding groove 82.

[0039] It should be noted that this utility model is a folding landing gear for drones. In use, the landing gear is fixed to the bottom of the drone fuselage via drone fixing blocks 2 at the front and rear ends of the main body plate 1 and drone fixing holes 3. Initially, the landing gear is in an unfolded state. When the drone takes off, the micro motor 62 inside the motor mount 61 in the control mechanism 6 is activated. The output end of the micro motor 62 drives the drive gear 63 to rotate. The drive gear 63 meshes with the driven gear 64, causing the threaded screw 65 at the rear end of the driven gear 64 to rotate between the two mounting plates 4. When the threaded screw 65 rotates, the transmission block 661 of the folding assembly 66 moves forward along the threaded screw 65, driving the connecting rods 662 at the left and right ends to move forward synchronously. The guide at the upper end of the fixing rod 663... The guide plate 664 slides forward along the guide groove 5 at the lower end of the main plate 1. The connecting rod 662 moves forward, causing the first folding support rod 665 and the second folding support rod 666 to rotate around the bearing at their intersection. The first sliding rod 667 on the upper outer surface of the first folding support rod 665 slides along the first sliding groove 73 of the first connecting frame 72 in the connecting assembly 7. The second sliding rod 668 on the lower outer surface of the second folding support rod 666 slides along the second sliding groove 82 of the second connecting frame 81 in the support assembly 8. As the transmission block 661 continues to move forward, the first folding support rod 665 and the second folding support rod 666 gradually fold and retract, causing the base 83 of the support assembly 8 to move upward until the base 83 is close to the appropriate position at the lower end of the first connecting frame 72. The micro motor 62 is then turned off, completing the landing gear folding. When the drone takes off, the folded landing gear reduces air resistance. The load-bearing rod 71 of the connecting assembly 7 transmits force to the main body plate 1, ensuring structural stability. During flight, the first folding support rod 665 and the second folding support rod 666 of the folding assembly 66 remain folded, and the sliding parts have no relative movement, which does not affect the flight attitude. When the drone is ready to land, the micro motor 62 is activated, which drives the drive gear 63 to rotate in the opposite direction. The drive gear 63 meshes with the driven gear 64, causing the threaded screw 65 to rotate in the opposite direction. The transmission block 661 moves backward along the threaded screw 65, and the connecting rod 662 moves backward synchronously. The guide plate 664 slides backward along the guide groove 5, and the backward movement of the connecting rod 662 causes the first folding support rod 665 and the second folding support rod 666 to cross at the intersection. The bearing rotates in the opposite direction with the bearing as the fulcrum. The first slide rod 667 slides in the opposite direction along the first slide groove 73, and the second slide rod 668 slides in the opposite direction along the second slide groove 82. As the transmission block 661 continues to move backward, the first folding support rod 665 and the second folding support rod 666 are fully unfolded. The base 83 of the support assembly 8 moves downward, and the buffer pad 84 at the lower end of the base 83 is in a state that can contact the ground. The micro motor 62 is turned off, and the landing gear is unfolded. When the drone lands, the base 83 of the support assembly 8 contacts the ground first. The buffer pad 84 at the lower end of the base 83 absorbs the impact force through deformation, reducing the vibration of the fuselage. The cross structure of the first folding support rod 665 and the second folding support rod 666 distributes the landing load to the connecting assembly 7 and the main body plate 1, ensuring that the drone is parked stably.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A folding landing gear for a drone, comprising a main body plate (1), characterized in that: Both the front end and the rear end of the main board (1) are fixedly connected with UAV fixing blocks (2). There are UAV fixing holes (3) penetrating up and down at the upper ends of the two UAV fixing blocks (2). The front part and the rear part of the lower end of the main board (1) are both fixedly connected with mounting plates (4). A guiding groove (5) is opened in the middle of the lower end of the main board (1). A control mechanism (6) is jointly installed between the two mounting plates (4). Connecting components (7) are fixedly connected to both the left end and the right end of the main board (1). Two supporting components (8) are installed on the control mechanism (6); The control mechanism (6) includes a motor base (61). A micro motor (62) is fixedly installed on the lower inner wall surface of the motor base (61). The output end of the micro motor (62) is fixedly installed with a driving gear (63). The outer surface of the driving gear (63) is meshed with a driven gear (64). A threaded rod (65) is fixedly connected to the rear end of the driven gear (64). A folding component (66) is threadedly connected to the outer surface of the threaded rod (65). The upper end of the motor base (61) is fixedly connected to the lower end of the main board (1).

2. The folding landing gear of an unmanned aerial vehicle according to claim 1, wherein: The front end of the driving gear (63) and the front end of the driven gear (64) are both movably connected to the rear end of the front mounting plate (4) through a rotating shaft. The rear end of the threaded rod (65) is movably connected to the front end of the rear mounting plate (4) through a rotating shaft.

3. The foldable landing gear of a drone according to claim 1, wherein: The folding component (66) includes a transmission block (661). Connecting rods (662) are fixedly connected to both the left end and the right end of the transmission block (661). Fixed rods (663) are fixedly connected to the outer surfaces of the two connecting rods (662). A guiding plate (664) is jointly fixedly connected to the upper ends of the two fixed rods (663). First folding support rods (665) are fixedly connected to the outer sides of the two connecting rods (662). Second folding support rods (666) are inserted and movably installed in the middle of the outer sides of the two first folding support rods (665) through bearings. First sliding rods (667) are fixedly connected to the upper parts of the outer sides of the two first folding support rods (665). Second sliding rods (668) are fixedly connected to the lower parts of the outer sides of the two second folding support rods (666). The inner wall surface of the transmission block (661) is threadedly connected to the outer surface of the threaded rod (65).

4. The folding landing gear of an unmanned aerial vehicle according to claim 1, characterized in that: The connecting component (7) includes a bearing rod (71). There are two bearing rods (71). A first connecting frame (72) is jointly fixedly connected to the right ends of the two bearing rods (71) on the right side. A first sliding groove (73) penetrating left and right is opened at the right end of the first connecting frame (72) on the right side. The left ends of the two bearing rods (71) on the right side are fixedly connected to the right end of the main board (1).

5. The folding landing gear of an unmanned aerial vehicle according to claim 1, characterized in that: The supporting component (8) includes a second connecting frame (81). A second sliding groove (82) penetrating left and right is opened at the right end of the second connecting frame (81) on the right side. A base (83) is fixedly connected to the lower end of the second connecting frame (81). A plurality of buffer pads (84) are fixedly connected to the lower end of the base (83).

6. The folding landing gear of an unmanned aerial vehicle according to claim 3, characterized in that: The upper part of the guide plate (664) is movably sleeved in the guide groove (5), and the two first folding struts (665) and the two second folding struts (666) are arranged in a pairwise crossing manner.

7. The folding landing gear of an unmanned aerial vehicle according to claim 3, wherein: The lower parts of the outer sides of the two first folding struts (665) are respectively fixedly connected to the corresponding second connecting brackets (81), and the upper parts of the outer sides of the two second folding struts (666) are respectively fixedly connected to the corresponding first connecting brackets (72).

8. The folding landing gear of an unmanned aerial vehicle according to claim 3, wherein: The two first sliding rods (667) are respectively movably sleeved in the corresponding first sliding grooves (73), and the two second sliding rods (668) are respectively movably sleeved in the corresponding second sliding grooves (82).

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