An efficient buffer protection device for drone landing

Abstract

The present invention discloses an efficient buffering and protection device for unmanned aerial vehicle landing, comprising an unmanned aerial vehicle main body, wherein the unmanned aerial vehicle main body is composed of an unmanned aerial vehicle main frame, a plurality of support seats, a plurality of drive motors, and a plurality of rotating blades; the plurality of support seats are arranged around the unmanned aerial vehicle main frame, the plurality of drive motors are mounted on the plurality of support seats, and the plurality of rotating blades are mounted on the drive ends of the plurality of drive motors; the bottom surface of the unmanned aerial vehicle main frame is provided with a lightweight landing gear and a landing buffer structure; the lightweight landing gear is embedded with a retractable landing assembly, which is connected to the control landing buffer structure; and the unmanned aerial vehicle main frame is provided with a master control adjustment assembly. The present invention adopts the above-mentioned efficient buffering and protection device for unmanned aerial vehicle landing, which can realize buffering and protection for the unmanned aerial vehicle during landing, thereby avoiding the unmanned aerial vehicle from overturning or losing balance due to a hard landing, and preventing the unmanned aerial vehicle from being damaged.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aerial vehicles (UAVs), and in particular relates to a high-efficiency buffer protection device used for landing of UAVs. Background Art

[0002] Unmanned aerial vehicle (UAV) is an unmanned aircraft that is controlled by a radio remote control device and a self-contained program control device, or is operated completely or intermittently autonomously by an onboard computer.

[0003] At present, most drones use a bracket or a soft pad at the bottom to touch the ground. Although this structure is cheap, the aerodynamic shape of the drone during flight is affected during application. When the drone is subjected to wind or lands at an angle during landing, it is easy for the drone to tilt or roll, causing damage to the drone. If a more complex support mechanism is used, it will not only occupy the internal space of the drone, but also easily increase the cost of the drone and complicate the drone structure, making the drone prone to mechanical failure. Summary of the Invention

[0004] The purpose of the present invention is to provide an efficient cushioning and protection device for the landing of a drone, which can realize cushioning and protection for the landing process of the drone, thereby avoiding the drone from overturning or losing balance due to a hard landing, and preventing the drone from being damaged.

[0005] To achieve the above-mentioned objectives, the present invention provides a high-efficiency buffering and protection device for landing of a drone, comprising a drone body, wherein the drone body is composed of a drone main frame, a plurality of support seats, a plurality of drive motors, and a plurality of rotating fan blades; the plurality of support seats are arranged around the drone main frame, the plurality of drive motors are installed on the plurality of support seats, and the plurality of rotating fan blades are installed on the drive ends of the plurality of drive motors; a lightweight landing gear and a landing buffer structure are provided on the bottom surface of the drone main frame; a retractable landing assembly is embedded in the lightweight landing gear, and the retractable landing assembly is connected to the control landing buffer structure; a master control adjustment assembly is provided on the drone main frame.

[0006] Preferably, the master control adjustment component includes a power slot, a power motor, a control gear, a transmission slot, a transmission rod, a control slot, and a control rod; a power slot is provided on one side of the bottom surface of the UAV main frame, a power motor is embedded in the power slot, a control gear is provided on the driving end of the power motor, and transmission slots are symmetrically provided on the lightweight landing gear on both sides of the control gear, transmission rods are provided in the transmission slots, and transmission gears are meshed with control gears at the ends of the transmission rods; a control slot is provided on the UAV main frame that is connected to the transmission slot, and the control slots extend to the retractable landing assembly, and control rods are provided in the control slots.

[0007] Preferably, a distance detector is provided on the outer wall surface of the power slot, and slots are provided on both sides of the power slot, and the transmission rods are respectively inserted into the slots; the power motor and the distance detector are both connected to the central control of the drone body.

[0008] Preferably, the retractable landing assembly includes a retractable slot, a connecting seat, an adjusting screw, and an adjusting slider; the ground of the main frame of the UAV is connected to both ends of the control slot and is provided with a retractable slot, and a limit rod is provided in the retractable slot; the end of the control rod passes through the retractable slot, and the end of the control rod is provided with an elastic sleeve locking assembly, the end of the retractable slot is provided with a connecting seat, an adjusting screw is provided on one side of the connecting seat, and an adjusting slider is provided on the adjusting screw.

[0009] Preferably, the connecting seat is a cylindrical plate with an inner hexagonal structure, and a groove with an inner hexagonal structure is provided on one side of the connecting seat.

[0010] Preferably, the elastic sleeve locking assembly includes a sliding cavity, a telescopic spring, and a sliding block; a socket-shaped groove is provided at the end of the retractable groove, and the connecting seat is assembled in the socket-shaped groove; a sliding cavity is provided at the end of the control rod, and the sliding cavity is a cavity groove with an inner hexagonal structure; a telescopic spring is provided in the sliding cavity, and the telescopic spring is connected to the end of the sliding block, and the sliding block passes through the sliding cavity and is inserted into the connecting seat.

[0011] Preferably, the lifting and lowering buffer structure includes a rotating seat, a support rod, a shock-absorbing spring, an adjusting rotating rod, and a buffer spring; a rotating seat is provided in the retractable groove at one end corresponding to the connecting seat, the end of the support rod is movably connected to the rotating seat, the support rod is a sleeve-type structure and a shock-absorbing spring is embedded in the support rod, an adjusting rotating rod is movably installed on the adjusting slider, the end of the adjusting rotating rod is connected to the end of the support rod, the adjusting rotating rod is also a sleeve-type structure and a buffer spring is embedded in the adjusting rotating rod.

[0012] Preferably, the end of the adjusting rotating rod is connected to the end of the supporting rod via a pin, and a support pad with a circular ring structure is sleeved on the outer side of the pin.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The present invention discloses a high-efficiency cushioning and protection device for landing of a drone. The device adopts a retractable bottom cushioning and support structure arranged on the bottom surface of the drone main frame and is equipped with a detachable split lightweight landing gear. The retraction and extension of the landing gear can be controlled by an automatic control method to achieve cushioning and protection for the drone during landing, thereby avoiding the drone from overturning or losing balance due to a hard landing, and preventing the drone from being damaged.

[0015] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of a first embodiment of a high-efficiency cushioning and protection device for landing a UAV according to the present invention;

[0017] Figure 2 This is an embodiment of an efficient buffer protection device for drone landing. Figure 1 Middle partial enlarged view;

[0018] Figure 3 This is a side view of an embodiment of a high-efficiency cushioning and protection device for landing a UAV according to the present invention;

[0019] Figure 4 This is a top view of an embodiment of a high-efficiency cushioning and protection device for landing a UAV according to the present invention;

[0020] Figure 5 This is a bottom sectional view of an embodiment of a high-efficiency cushioning and protection device for landing a UAV according to the present invention;

[0021] Figure 6 This is an embodiment of an efficient buffer protection device for drone landing. Figure 5 Middle partial enlarged view;

[0022] Figure 7 This is a bottom view of an embodiment of a high-efficiency cushioning and protection device for landing a UAV according to the present invention;

[0023] Figure 8 This is a front view of a second embodiment of a high-efficiency buffer protection device for landing of a UAV according to the present invention.

[0024] Reference numerals

[0025] 1. UAV body; 101. UAV main frame; 102. Support seat; 103. Drive motor; 104. Rotating fan blades; 2. Lightweight landing gear; 3. Power motor; 4. Control gear; 5. Transmission slot; 6. Transmission rod; 7. Control slot; 8. Control rod; 9. Screw; 10. Distance detector; 11. Retraction slot; 12. Connecting seat; 13. Adjustment screw; 14. Adjustment slider; 15. Sliding cavity; 16. Telescopic spring; 17. Sliding block; 18. Rotating seat; 19. Support rod; 20. Shock-absorbing spring; 21. Adjustment rod; 22. Buffer spring; 23. Pin; 24. Support pad; 25. Limit rod. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0027] Unless otherwise defined, technical or scientific terms used in the present invention shall have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs.

[0028] Example 1

[0029] like Figure 1-7 As shown, a high-efficiency buffer protection device for landing of a drone includes a drone body 1, which is composed of a drone main frame 101, a plurality of support seats 102 arranged around the drone main frame 101, a plurality of drive motors 103 installed on the plurality of support seats 102, and a plurality of rotating fan blades 104 installed on the drive ends of the plurality of drive motors 103. A lightweight landing gear 2 is provided on the bottom surface of the drone main frame 101, and the drone main frame 101 and the lightweight landing gear 2 are connected in a split manner.

[0030] The drone's main frame 101 is equipped with a master control and adjustment assembly, which controls two pairs of retractable landing assemblies. These two pairs of retractable landing assemblies are embedded in the lightweight landing gear 2, which are connected to two pairs of controlled landing and cushioning structures. The master control and adjustment assembly's torque control on the landing and cushioning structures is transmitted through the lightweight landing gear 2 on the bottom of the drone's main frame 101, thereby providing cushioning, protection, and support during landing.

[0031] During the specific implementation process, the drone body 1 is a supporting body of the drone which is composed of a drone main frame 101 and several support seats 102. The drone's flight control system is integrated inside the drone main frame 101, and the flight control system controls the working state of the drive motor 103, thereby controlling the flight attitude of the drone. Although this application takes a rotor drone as an example, the buffer protection device disclosed in the present invention is also applicable to jet drones.

[0032] The master control and adjustment assembly includes a power slot, a power motor 3, a control gear 4, a pair of transmission slots 5, a pair of transmission rods 6, a pair of control slots 7, and a pair of control rods 8. A power slot is provided on one side of the bottom surface of the drone main frame 101. The power slot is embedded with the power motor 3. The driving end of the power motor 3 is provided with a control gear 4. A pair of transmission slots 5 are symmetrically provided on the lightweight landing gear 2 on both sides of the control gear 4. A pair of transmission slots 5 are assembled in the pair of transmission rods 6. The ends of the pair of transmission rods 6 are provided with a pair of transmission gears that mesh with the control gear 4. A pair of control slots 7 are provided on the drone main frame 101 in communication with the pair of transmission slots 5. The pair of control slots 7 extend to two pairs of retractable landing assemblies. A pair of control rods 8 are provided in the pair of control slots 7.

[0033] In the specific implementation process, the power slot part protrudes from the bottom surface of the drone main frame 101, and the bottom surface of the drone main frame 101 is provided with a number of threaded holes. The lightweight landing gear 2 is provided with a number of screws 9 connected to the number of threaded holes, so that the lightweight landing gear 2 can be assembled to the bottom surface of the drone main frame 101 without destroying the aerodynamic shape of the drone main frame 101. The power motor 3 in the power slot is used as the total power for the retraction and extension of the landing equipment. The power motor 3 drives the control gear 4 to rotate, and then the control gear 4 is engaged with a pair of transmission gears at the end of a pair of transmission rods 6. A pair of slots are provided on both sides of the power slot, and a pair of transmission rods 6 are inserted into the pair of slots. The pair of transmission gears are driven to rotate, and the pair of transmission gears drive the pair of transmission rods 6 to rotate, so that the pair of transmission rods 6 are engaged with the pair of control rods 8 on the pair of control slots 7 through the conical structure gears, so that the pair of control rods 8 are rotated, and the torque is transmitted to the pair of control rods 8, and then the retractable landing assembly is driven by the pair of control rods 8. A distance detector 10 is provided on the outer wall of the power slot for detecting the height of the UAV from the ground. The feedback signal is used to control the action of the power motor 3 accordingly. The power motor 3 and the distance detector 10 are both connected to the central control of the UAV body 1. The control of the take-off, landing and retraction can be quickly connected to the hollow system of the UAV by plugging in the wires.

[0034] The retractable landing assembly includes a pair of retractable slots 11, a connecting seat 12, an adjustment screw 13, and an adjustment slider 14. The ground of the drone's main frame 101 is located at both ends of the control slot 7 and is connected to a pair of retractable slots 11. The end of the control rod 8 extends through the retractable slots 11. The end of the control rod 8 is provided with an elastic sleeve lock assembly. The end of the retractable slot 11 is provided with a connecting seat 12. One side of the connecting seat 12 is provided with an adjustment screw 13, and the adjustment slider 14 is sleeved on the adjustment screw 13.

[0035] During the specific implementation process, the connecting seat 12 is a cylindrical plate with an inner hexagonal structure. A groove with an inner hexagonal structure is opened on one side of the connecting seat 12. The retractable groove 11 on the bottom surface of the drone main frame 101 is used as a space for the movement of the retractable component. The connecting seat 12 is locked by the elastic sleeve locking component at the end of the control rod 8. Under the drive of the control rod 8, the connecting seat 12 is rotated, and then the connecting seat 12 drives the adjusting screw rod 13 to rotate, so that the adjusting screw rod 13 is engaged with the adjusting slider 14, so that the adjusting slider 14 performs a linear motion, so that the adjusting slider 14 drives the landing buffer structure to move.

[0036] The elastic locking assembly includes a sliding cavity 15, a telescopic spring 16, and a sliding block 17. The end of the retractable slot 11 defines a socket-shaped groove, into which the connecting seat 12 fits. The end of the control rod 8 defines a sliding cavity 15, which is a hexagonal internal structure. A telescopic spring 16 is located within the sliding cavity 15 and connected to the end of the sliding block 17. The sliding block 17 extends through the sliding cavity 15 and is inserted into the connecting seat 12.

[0037] During the specific implementation process, the connecting seat 12 is assembled through the socket-shaped groove at the end of the receiving groove 11 to prevent the connecting seat 12 from detaching from the receiving groove 11, and the sliding block 17 is inserted through the sliding cavity 15 at the end of the control rod 8. Under normal conditions, a small part of the sliding block 17 remains in the sliding cavity 15. When the connecting seat 12 is connected through the sliding block 17, due to the hexagonal structure limitation at the end of the sliding block 17, the torque of the control rod 8 can be transmitted to the connecting seat 12. When the sliding block 17 is inserted into the connecting seat 12, the sliding block 17 slides into the sliding cavity 15, squeezing the telescopic spring 16. Through the pushing action of the telescopic spring 16, the sliding block 17 is kept always inserted in the connecting seat 12 to prevent it from falling off.

[0038] The landing and lifting buffer structure includes a rotating seat 18, a support rod 19, a shock-absorbing spring 20, an adjustment lever 21, and a buffer spring 22. The rotating seat 18 is provided at the end of the storage slot 11 corresponding to the connecting seat 12. The end of the support rod 19 is movably connected to the rotating seat 18. The support rod 19 is a sleeve-type structure and has a shock-absorbing spring 20 embedded therein. The adjustment slider 14 is movably mounted with an adjustment lever 21. The end of the adjustment lever 21 is connected to the end of the support rod 19. The adjustment lever 21 is also a sleeve-type structure and has a buffer spring 22 embedded therein.

[0039] The end of the adjusting rod 21 is connected to the end of the support rod 19 by a pin 23, and a support pad 24 with a circular ring structure is provided on the outer side of the pin 23 to protect the grounding point. A limit rod 25 is provided in the retractable groove 11. The limit rod 25 is used to limit the movement position of the sliding block 17 to avoid excessive movement and at the same time play a supporting role.

[0040] Example 2

[0041] like Figure 8 As shown, when the lightweight landing gear 2 is disassembled, the rotating seat 18 is directly rotated and the rotating seat 18 can be rotated using an Allen wrench. In this way, the adjustment rod 21 and the support rod 19 used for landing support are adjusted out of the retractable slot 11. At this time, the drone maintains normal flight status, and the adjustment rod 21 and the support rod 19 are exposed on the bottom surface of the drone main frame 101. On the one hand, the structural weight is reduced and energy consumption is reduced. On the other hand, it can still play an auxiliary support role. However, it correspondingly destroys the aerodynamic shape of the drone and reduces some flight performance.

[0042] Therefore, the present invention adopts the above-mentioned high-efficiency buffering and protection device for drone landing, arranges a retractable bottom buffering support structure on the bottom surface of the drone main frame, and is equipped with a detachable split lightweight landing gear. The retraction and extension of the landing gear can be controlled by automatic control to achieve buffering protection for the drone during landing, thereby avoiding the drone's hard landing causing the drone to overturn or lose balance, and preventing damage to the drone.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An efficient cushioning and protection device for UAV landing, characterized by: The invention comprises a drone body, which is composed of a drone main frame, a plurality of support seats, a plurality of drive motors, and a plurality of rotating fan blades; the plurality of support seats are arranged around the drone main frame, the plurality of drive motors are mounted on the plurality of support seats, and the plurality of rotating fan blades are mounted on the driving ends of the plurality of drive motors; a lightweight landing gear and a landing buffer structure are provided on the bottom surface of the drone main frame; a retractable landing assembly is embedded in the lightweight landing gear, and the retractable landing assembly is connected to the control landing buffer structure; a master control adjustment assembly is provided on the drone main frame; The master control adjustment assembly includes a power slot, a power motor, a control gear, a transmission slot, a transmission rod, a control slot, and a control rod; a power slot is provided on one side of the bottom surface of the UAV main frame, a power motor is embedded in the power slot, a control gear is provided on the driving end of the power motor, and transmission slots are symmetrically provided on the lightweight landing gear on both sides of the control gear, and transmission rods are provided in the transmission slots, and transmission gears are meshed with control gears at the ends of the transmission rods; a control slot is provided on the UAV main frame in communication with the transmission slot, and the control slots extend to the retractable landing assembly, and control rods are provided in the control slots; A distance detector is provided on the outer wall of the power tank, and slots are provided on both sides of the power tank, and the transmission rods are respectively inserted into the slots; the power motor and the distance detector are both connected to the central control of the drone body; The retractable landing assembly includes a retractable slot, a connecting seat, an adjusting screw, and an adjusting slider; the ground of the main frame of the UAV is connected to both ends of the control slot and is provided with a retractable slot, and a limit rod is provided in the retractable slot; the end of the control rod passes through the retractable slot, and the end of the control rod is provided with an elastic sleeve lock assembly, the end of the retractable slot is provided with a connecting seat, and an adjusting screw is provided on one side of the connecting seat, and an adjusting slider is sleeved on the adjusting screw; The lifting and lowering buffer structure includes a rotating seat, a support rod, a shock-absorbing spring, an adjusting rotating rod, and a buffer spring; a rotating seat is provided in the retracting groove at one end corresponding to the connecting seat, the end of the support rod is movably connected to the rotating seat, the support rod is a sleeve-type structure and a shock-absorbing spring is embedded in the support rod, an adjusting rotating rod is movably installed on the adjusting slider, the end of the adjusting rotating rod is connected to the end of the support rod, the adjusting rotating rod is also a sleeve-type structure and a buffer spring is embedded in the adjusting rotating rod.

2. The high-efficiency cushioning and protection device for UAV landing according to claim 1, characterized in that: The connecting seat is a cylindrical plate with an inner hexagonal structure, and a groove with an inner hexagonal structure is provided on one side of the connecting seat.

3. The high-efficiency cushioning and protection device for UAV landing according to claim 1 is characterized in that: The elastic sleeve lock assembly includes a sliding cavity, a telescopic spring, and a sliding block; a socket-shaped groove is provided at the end of the retractable groove, and the connecting seat is assembled in the socket-shaped groove; a sliding cavity is provided at the end of the control rod, and the sliding cavity is a cavity groove with an inner hexagonal structure; a telescopic spring is provided in the sliding cavity, and the telescopic spring is connected to the end of the sliding block; the sliding block passes through the sliding cavity and is inserted into the connecting seat.

4. The high-efficiency cushioning and protection device for UAV landing according to claim 1, characterized in that: The end of the adjusting rotating rod is connected to the end of the supporting rod through a pin shaft, and a support pad with a circular ring structure is sleeved on the outer side of the pin shaft.

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