A landing protection device for a six-rotor training drone

Abstract

This utility model discloses a landing protection device for a six-rotor training drone, belonging to the field of drone technology. It includes a drone fuselage and two support structures installed below the fuselage. Each support structure consists of a connecting plate, guide rods, and a buffer seat. Two connecting rods are fixed to the bottom of the connecting plate. The buffer seat is movably connected to the guide rods and has a partition fixed inside. Two guide posts are fixed to the surface of the partition, and buffer springs are sleeved on the outside of the guide posts. A buffer plate is movably connected to the bottom of the buffer seat, and two distance sensors are installed at the bottom of the buffer seat. Two drive motors are installed on the surface of the partition, and adjusting screws are fixed to the output ends of the drive motors. A support sleeve is threaded onto the outer wall of the adjusting screws. This landing protection device for a six-rotor training drone has good buffering effect and strong adaptability, ensuring the stability of the drone during landing.

Description

Technical Field

[0001] This utility model belongs to the field of unmanned aerial vehicle (UAV) technology, specifically relating to a take-off and landing protection device for a six-rotor training UAV. Background Technology

[0002] In the field of unmanned aerial vehicle (UAV) technology, hexacopter UAVs are widely used in flight training scenarios due to their high flight stability and moderate payload capacity. However, the high frequency of UAV takeoffs and landings and the complex operating environment during training (such as the presence of gravel, slopes, uneven surfaces, etc. on the training ground) place stringent demands on the performance of takeoff and landing protection devices.

[0003] The landing protection devices of some existing hexacopter drones generally have the following deficiencies: Insufficient cushioning performance: Most protective devices rely on a single spring structure for cushioning, which cannot effectively absorb the impact force during takeoff and landing. Frequent takeoffs and landings during training can lead to the accumulation of impact force, which may not only cause the fuselage to sway and deviate, but also accelerate the wear and tear of the precision components inside the drone (such as flight control system and sensors), affecting training safety and the service life of the drone.

[0004] Weak adaptability: When faced with uneven training grounds (such as sloping grass or potholed concrete), existing devices cannot adjust the support height according to the difference in ground height, which can easily cause the drone to tilt to one side when landing, or even cause accidents such as tipping over or the propeller hitting the ground, thus interfering with the training process. Utility Model Content

[0005] The purpose of this invention is to provide a landing protection device for a hexacopter training drone, in order to solve the problems of insufficient buffering performance and weak adaptive capability that are common in some existing landing protection devices for hexacopter drones mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a landing protection device for a six-rotor training drone, comprising a drone fuselage and two support structures installed below the drone fuselage. Each support structure consists of a connecting plate, guide rods, and a buffer seat. The connecting plate is installed at the bottom of the drone fuselage, and two connecting rods fixedly connected to the guide rods are fixed at the bottom of the connecting plate. The buffer seat is movably connected to the outside of the guide rods, and a partition is fixed inside the buffer seat. Two guide posts are fixed to the surface of the partition, and buffer springs are sleeved on the outside of the guide posts. A buffer plate is movably connected to the bottom of the buffer seat, and two distance sensors are installed at the bottom of the buffer seat. Two drive motors are installed on the surface of the partition, and an adjusting screw is fixed to the output end of each drive motor. A support sleeve is threadedly connected to the outer wall of the adjusting screw.

[0007] In a further embodiment, a limiting plate is fixed to the bottom of the guide rod, and two damping buffers for supporting the limiting plate are installed on the surface of the partition.

[0008] In a further embodiment, a support pad is fixed to the bottom of the support sleeve, and limit rods are fixed to both outer walls of the support sleeve. Four limit grooves for the limit rods to move are opened at the bottom of the buffer seat, and a limit ring is fixed to the upper outer wall of the support sleeve.

[0009] In a further embodiment, the surface of the buffer plate is fixed with two hooks, and the bottom of the buffer seat has two fixing grooves that match the hooks.

[0010] In a further embodiment, both the guide rod and the limiting plate have two guide holes for the guide column to move, and both the guide rod and the limiting plate have two moving holes for the drive motor to move.

[0011] In a further embodiment, the buffer plate has two through holes for the support pad to move, and the buffer plate has two positioning holes corresponding to the positions of the distance sensors.

[0012] The technical effects and advantages of this utility model are as follows: The takeoff and landing protection device of this six-rotor training drone adopts a dual buffer structure of buffer spring and damper. The buffer spring can quickly absorb most of the impact energy during takeoff and landing, while the damper can further weaken the transmission of impact vibration and avoid damage to the fuselage and internal components. Compared with the existing single buffer structure, it can reduce the impact force, significantly improve the stability of the drone during landing, and reduce equipment wear and tear during training. The distance sensor at the bottom of the buffer seat can detect the distance to the ground in real time and transmit the data to the controller. The controller drives the drive motor of the corresponding support structure to operate according to the difference in ground height. By adjusting the screw, the support sleeve is raised and lowered, realizing independent height adjustment of the four support points. Even on uneven ground, the drone body can always be kept in a horizontal state, solving the problem of "easy to tip over on uneven ground" of the existing device and improving the adaptability of training scenarios. The buffer plate is connected to the buffer seat via hooks and fixing slots. When replacing it, simply bend both ends of the buffer plate inward to disengage the hooks from the fixing slots to quickly remove the old buffer plate. When installing the new buffer plate, align the hooks with the fixing slots, insert them, and release the buffer plate to complete the fixation. The entire process requires no tools, greatly improving the efficiency of replacing vulnerable parts and ensuring training continuity. This hexacopter training drone's takeoff and landing protection device has good cushioning effect and strong adaptability, ensuring the stability of the drone during landing. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the support structure of this utility model; Figure 3 This is an exploded view of the support structure of this utility model; Figure 4 This is a schematic diagram of the guide rod and limiting plate of this utility model; Figure 5 For the present utility model Figure 3 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the structure of the buffer seat and buffer plate of this utility model; Figure 7 This is a schematic diagram of the drive motor and support sleeve of this utility model.

[0015] In the diagram: 1. UAV fuselage; 2. Connecting plate; 3. Connecting rod; 4. Guide rod; 5. Buffer seat; 6. Limiting plate; 7. Partition; 8. Guide column; 9. Buffer spring; 10. Damping buffer; 11. Buffer plate; 12. Hook; 13. Drive motor; 14. Adjusting screw; 15. Support sleeve; 16. Support pad; 17. Limiting rod; 18. Limiting ring; 19. Distance sensor. Detailed Implementation

[0016] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0017] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0018] This utility model provides, for example Figure 1-7The diagram illustrates a landing protection device for a hexacopter training drone, comprising a drone fuselage 1 and two support structures mounted below the drone fuselage 1. Each support structure consists of a connecting plate 2, guide rods 4, and a buffer seat 5. The connecting plate 2 is mounted on the bottom of the drone fuselage 1, and two connecting rods 3, fixedly connected to the guide rods 4, are fixedly attached to the bottom of the connecting plate 2. The buffer seat 5 is movably connected to the outside of the guide rods 4, and a limiting plate 6 is fixed to the bottom of the guide rods 4. The limiting plate 6 is movably connected to the buffer seat 5, and can restrict the position of the guide rods 4, preventing separation between the guide rods 4 and the buffer seat 5. The partition 7 is fixed inside, and two guide posts 8 are fixed on the surface of the partition 7. A buffer spring 9 is sleeved on the outside of the guide post 8. Two guide holes for the guide post 8 to move are opened on both the guide rod 4 and the limiting plate 6. Two damping buffers 10 for supporting the limiting plate 6 are installed on the surface of the partition 7. When the UAV fuselage 1 lands, the support structure contacts the ground first, the buffer seat 5 moves outside the guide rod 4, and the guide post 8 moves in the guide hole at the same time. With the help of the buffer spring 9 and the damping buffer 10, a good buffering effect can be achieved to avoid the impact force generated during landing, which would cause the UAV fuselage 1 to be unstable. A buffer plate 11 is movably connected to the bottom of the buffer seat 5. The buffer plate 11 can be made of rubber. Two hooks 12 are fixed on the surface of the buffer plate 11. Two fixing grooves matching the hooks 12 are opened at the bottom of the buffer seat 5. By bending the two ends of the buffer plate 11 inward, the hooks 12 are inserted into the fixing grooves. After releasing the buffer plate 11, the buffer plate 11 returns to its original position, so that the hooks 12 are locked in the fixing grooves. This allows the buffer plate 11 to be installed and fixed quickly, and also makes it easy to replace the buffer plate 11 quickly after it is worn. Two drive motors 13 are mounted on the surface of the partition 7. Two moving holes are provided on both the guide rod 4 and the limiting plate 6 for the drive motors 13 to move. The drive motors 13 move within these moving holes, preventing the movement of the buffer seat 5 from being restricted by the drive motors 13 during the landing of the UAV fuselage 1. An adjusting screw 14 is fixed to the output end of the drive motor 13 via a coupling, and a support sleeve 15 is threaded onto the outer wall of the adjusting screw 14. The support sleeve 15 extends to the bottom of the buffer seat 5, and a support pad 16 is fixed to the bottom of the support sleeve 15. Two through holes are provided on the buffer plate 11 for the support pad 16 to move, and limiting rods 17 are fixed to the outer walls of both sides of the support sleeve 15. Four limiting grooves are provided at the bottom of the buffer seat 5 for the limiting rods 17 to move. The limiting rods 17 can move within the driving holes. When the motor 13 drives the adjusting screw 14 to rotate, it ensures that the support sleeve 15 rises and falls vertically. The upper half of the outer wall of the support sleeve 15 is fixed with a limit ring 18, which can limit the movement distance of the support sleeve 15. Two distance sensors 19 are installed at the bottom of the buffer seat 5. Two positioning holes corresponding to the positions of the distance sensors 19 are opened on the buffer plate 11. During the landing of the drone body 1, the distance sensor 19 can detect the distance between the buffer seat 5 and the ground. When the drone body 1 lands on uneven ground, the four drive motors 13 can adjust the positions of the four support sleeves 15 respectively, so that the drone body 1 always maintains a stable state when landing on uneven ground, further ensuring the stability of the drone body 1 during landing.

[0019] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. It should be noted that the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0020] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Working principle: The landing protection device of this hexacopter training drone first detects the distance between the buffer seat 5 and the ground in real time by two distance sensors 19 at the bottom of the buffer seat 5 when the drone enters the landing phase, and transmits the distance data to the drone's controller. The controller judges the flatness of the ground based on the detection data. If there is a height difference on the ground, it immediately starts four drive motors 13. The drive motors 13 drive the adjusting screw 14 to rotate. The support sleeve 15 moves up and down in the vertical direction with the rotation of the adjusting screw 14 until the support pads 16 at the bottom of the four support sleeves 15 maintain an appropriate distance from the ground, ensuring that the fuselage is in a horizontal state. When the support pad 16 contacts the ground, if there is a landing impact force, the buffer seat 5 will move upward along the guide rod 4. At this time, the guide post 8 on the partition 7 moves synchronously along the guide rod 4 and the guide hole on the limiting plate 6. The buffer spring 9 is compressed and absorbs the impact energy. At the same time, the damping buffer 10 on the partition 7 contacts the limiting plate 6, further weakening the transmission of impact vibration and preventing the vibration from being transmitted to the UAV fuselage 1. When the buffer plate 11 contacts the ground, its rubber material can help absorb part of the impact force and reduce the wear of the support pad 16. After the drone takes off, the controller drives the drive motor 13 to rotate in the opposite direction, and the adjusting screw 14 drives the support sleeve 15 to retract upward. At the same time, the buffer spring 9 resets and pushes the buffer seat 5 to move downward along the guide rod 4, returning to the initial state and preparing for the next take-off and landing.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A take-off and landing protection device for a hexacopter training unmanned aerial vehicle, comprising an unmanned aerial vehicle body (1) and two support structures installed below the unmanned aerial vehicle body (1), characterized in that: The support structure consists of a connecting plate (2), a guide rod (4), and a buffer seat (5). The connecting plate (2) is installed at the bottom of the UAV fuselage (1). Two connecting rods (3) are fixed at the bottom of the connecting plate (2) and are fixedly connected to the guide rod (4). The buffer seat (5) is movably connected to the outside of the guide rod (4), and a partition (7) is fixed inside the buffer seat (5). Two guide posts (8) are fixed on the surface of the partition (7), and a buffer spring (9) is sleeved on the outside of the guide post (8). A buffer plate (11) is movably connected to the bottom of the buffer seat (5), and two distance sensors (19) are installed at the bottom of the buffer seat (5). Two drive motors (13) are installed on the surface of the partition (7). An adjusting screw (14) is fixed at the output end of the drive motor (13), and a support sleeve (15) is threaded onto the outer wall of the adjusting screw (14).

2. The take-off protection device of a hexacopter training unmanned aerial vehicle according to claim 1, characterized in that: The bottom of the guide rod (4) is fixed with a limiting plate (6), and two damping buffers (10) for supporting the limiting plate (6) are installed on the surface of the partition (7).

3. The landing protection device for a six-rotor training drone according to claim 1, characterized in that: The bottom of the support sleeve (15) is fixed with a support pad (16), and the outer walls on both sides of the support sleeve (15) are fixed with limit rods (17). The bottom of the buffer seat (5) is provided with four limit grooves for the limit rods (17) to move. The upper half of the outer wall of the support sleeve (15) is fixed with a limit ring (18).

4. The take-off protection device of a hexacopter training unmanned aerial vehicle according to claim 2, characterized in that: Two hooks (12) are fixed to the surface of the buffer plate (11), and two fixing grooves matching the hooks (12) are opened at the bottom of the buffer seat (5).

5. The take-off protection device of a hexacopter training drone according to claim 1, characterized in that: Both the guide rod (4) and the limiting plate (6) have two guide holes for the guide column (8) to move, and both the guide rod (4) and the limiting plate (6) have two moving holes for the drive motor (13) to move.

6. The take-off protection device of a hexacopter training drone according to claim 3, characterized in that: The buffer plate (11) has two through holes for the support pad (16) to move, and the buffer plate (11) has two positioning holes corresponding to the position of the distance sensor (19).

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