Unmanned aerial vehicle with autonomous anti-falling function

Abstract

The utility model provides an unmanned aerial vehicle with an autonomous anti-falling function, and belongs to the technical field of unmanned aerial vehicles. The unmanned aerial vehicle comprises a fuselage, wings, a camera device and an anti-falling device. The anti-falling device comprises a protection assembly, a driving piece and a transmission assembly. The protection assembly comprises a first protection cover and a second protection cover which are movably arranged in the openings in the two sides of the camera device respectively; the transmission assembly comprises a first gear and a second gear which are meshed with each other, and each of the first gear and the second gear is connected with a protective cover; and the driving part is connected with the first gear or the second gear and is used for driving the first gear and the second gear to synchronously and reversely rotate, so that the two protective covers are far away from each other or close to each other until the tail ends of the two protective covers are connected below the camera device. The protection assemblies are driven to be attached to each other through rotation of the gears which are meshed with each other, a protection space is formed, when the unmanned aerial vehicle falls, the camera device is protected, and the camera device is prevented from being damaged due to ground collision.

Description

Technical Field

[0001] This utility model relates to a drone with autonomous anti-fall function, belonging to the field of drone technology. Background Technology

[0002] When using drones to film narrow terrains such as valleys and ravines, the camera devices on the drone are mostly located under the drone's fuselage. However, when flying in narrow terrain, the angle and altitude of the shot change significantly, and the flight path is difficult to control precisely. Due to limited visibility or improper operation, the drone may crash into the mountainside or ravine wall, causing it to fall. This poses a serious threat to the camera devices under the drone's fuselage and the overall safety of the drone, especially for high-value cameras. If damaged, it may lead to failure in acquiring shooting data, affecting the continued completion of the mission.

[0003] Existing drone crash protection mechanisms often lack sufficient reaction time when encountering sudden out-of-control falls, failing to provide effective protection before a collision occurs. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a drone with autonomous anti-fall function, thus solving the problem that the camera device of the drone cannot be effectively protected.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] In a first aspect, this utility model provides a drone with autonomous anti-fall function, comprising: a fuselage, wings connected to the fuselage, and a camera device mounted on the lower surface of the fuselage and an anti-fall device for protecting the camera device; the anti-fall device is disposed inside the fuselage and includes: a protective component, a driving component, and a transmission component; the protective component includes: a first protective cover and a second protective cover, which are respectively movably disposed in openings on both sides of the camera device; the transmission component includes: a first gear and a second gear installed inside the fuselage and meshing with each other, the first gear being connected to the first protective cover and the second gear being connected to the second protective cover; the driving component is drivenly connected to the first gear or the second gear, and is used to drive the first gear and the second gear to rotate synchronously in opposite directions, thereby driving the first protective cover and the second protective cover to move away from each other or move closer to each other until the ends of the first protective cover and the second protective cover are connected below the camera device.

[0007] Furthermore, the driving component is an electrically controlled telescopic rod, one end of which is hinged to the machine body, and the other end is hinged to the first gear or the second gear.

[0008] Furthermore, the driving component is a rotary motor, which is connected to the first gear or the second gear in a transmission connection.

[0009] Furthermore, the rotating motor is connected to the first gear or the second gear via a lead screw.

[0010] Furthermore, the first protective cover and the protective cover are bent surfaces, with one straight edge serving as a pivot and the other straight edge serving as a fitting part; one end of the pivot of the first protective cover is fixedly mounted at the center of the first gear, and the other end is rotatably mounted on the machine body; one end of the pivot of the second protective cover is fixedly mounted at the center of the second gear, and the other end is rotatably mounted on the machine body; when the first gear and the second gear rotate in opposite directions, the first protective cover and the second protective cover are driven to rotate around their respective pivots in opposite directions, so as to bring the fitting parts closer or further apart.

[0011] Furthermore, the first and second protective covers are arc-shaped surfaces, with one straight edge serving as a fixing part and the other straight edge as a fitting part; the first gear includes: synchronous gear one and synchronous gear two, with both ends of the fixing part of the first protective cover fixed to synchronous gear one and synchronous gear two respectively, and the fixing point being a non-central point; the second gear includes: synchronous gear three and synchronous gear four, with both ends of the fixing part of the second protective cover fixed to synchronous gear three and synchronous gear four respectively, and the fixing point being a non-central point; synchronous gear one and synchronous gear three mesh with each other, and synchronous gear two and synchronous gear four mesh with each other; when the first gear and the second gear rotate in opposite directions, the first protective cover is driven to rotate coaxially with the first gear, and the second protective cover is driven to rotate coaxially with the second gear, so as to achieve the approach or distance of the fitting part.

[0012] Furthermore, the drone also includes a controller and an acceleration sensor; the acceleration sensor is used to collect the drone's descent acceleration and transmit it to the controller; the controller is used to control the operation of the drive components.

[0013] Furthermore, the drone also includes a landing buffer device, used to slow down the descent speed of the drone during its descent, so as to reduce the impact force when the drone lands; the landing buffer device is installed on the upper surface of the drone body.

[0014] Furthermore, the descent buffer device includes: a parachute and a release assembly; the release assembly includes: a spring, a push plate, a limiting plate, and a moving component; the push plate is connected to one end of the spring, and the other end of the spring is fixed to the fuselage; the parachute is mounted on the push plate, one end of the limiting plate is used to press the push plate, compressing the spring, and the other end is connected to the moving component, so that when the moving component moves and pulls open the limiting plate, the spring is released and pushed out of the push plate, realizing the release of the parachute; the moving component is signal-connected to the controller. Compared with the prior art, the beneficial effects achieved by this utility model are:

[0015] (1) This utility model utilizes the rotation of interlocking gears to drive the protective components to fit together, forming a protective space. When the drone crashes, it protects the camera device under the fuselage and prevents the camera device from being damaged by the ground collision.

[0016] (2) This utility model also uses a parachute as a fall buffer device. When the drone crashes, the parachute will be deployed in time to make good use of air resistance to slow down the fall speed of the drone. On the one hand, it buys time for the protective components to operate, and on the other hand, it reduces the impact force when the drone lands. Attached Figure Description

[0017] Figure 1 A three-dimensional view of the UAV provided for this utility model;

[0018] Figure 2 A schematic diagram of the UAV transmission assembly provided by this utility model;

[0019] Figure 3 This is an overview diagram of the unmanned aerial vehicle (UAV) provided in Embodiment 2 of this utility model;

[0020] Figure 4 This is an overview view of the unmanned aerial vehicle (UAV) provided in Embodiment 3 of this utility model;

[0021] Figure 5 Top view of the UAV landing buffer device provided by this utility model;

[0022] In the diagram: 1-Fuselage; 11-Wing; 12-Camera device; 13-Acceleration sensor; 21-First electric telescopic rod; 22-Adapter; 23-First gear; 24-Second gear; 25-Fixing frame; 26-Shaft; 27-Protective components; 28-First rubber pad; 29-Second rubber pad; 210-First outer shell; 211-Second outer shell; 214-Baffle; 215-Limiting plate; 216-Push plate; 217-Spring; 218-Parachute. Detailed Implementation

[0023] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them.

[0024] Example 1: This example provides a drone with autonomous anti-fall function, which is used to protect the camera device under the fuselage 1 when the drone crashes.

[0025] like Figure 1 and 2 As shown, the drone provided by this utility model includes: a fuselage 1, a wing 11 connected to the fuselage 1, a camera device 12 installed on the lower surface of the fuselage 1, and a fall protection device for protecting the camera device 12.

[0026] Specifically, the drop protection device includes: protective component 27, drive component and transmission component.

[0027] The protective component 27 includes a first protective cover and a second protective cover, which are respectively installed in the openings on both sides of the camera device 12.

[0028] In some specific embodiments, such as Figure 3 As shown, the lower ends of the first protective cover and the second protective cover are fixedly connected to the first rubber pad 28, and the inner side is fixedly connected to the second rubber pad 29.

[0029] The transmission assembly includes a first gear 23 and a second gear 24 that mesh with each other, both of which are installed inside the fuselage 1 of the UAV. A first protective cover is fixedly connected to the first gear 23, and a second protective cover is fixedly connected to the second gear 24.

[0030] The driving component is connected to the first gear 23 or the second gear 24 for driving the first gear 23 and the second gear 24 to rotate synchronously in opposite directions, thereby driving the first protective cover and the second protective cover to move closer to each other, or to move closer to each other until the ends of the first protective cover and the second protective cover are connected below the camera device 12.

[0031] It should be noted that the positions where the first protective cover is fixedly connected to the first gear 23 and the second protective cover is fixedly connected to the second gear 24 can be at the center positions of the first gear 23 and the second gear 24, or at non - center positions of the first gear 23 and the second gear 24.

[0032] In a more comprehensive embodiment, the drone further includes: a controller and an acceleration sensor 13 for collecting the falling acceleration of the drone; the controller controls the working state of the driving member according to the acceleration collected by the acceleration sensor 13.

[0033] Specifically, when the falling acceleration of the drone collected by the acceleration sensor 13 is greater than a preset value, it indicates that the drone is in the process of falling. The controller activates the driving member to work, and drives the protective component 27 to close through the transmission component, so as to achieve anti - fall protection for the imaging device 12.

[0034] Embodiment 2, based on Embodiment 1, this embodiment provides the specific structures and connection methods of the first protective component and the transmission component.

[0035] As Figure 3 shown, the first protective cover and the second protective cover included in the protective component 27 are bent surfaces, one straight edge is the rotating shaft 26, and the other straight edge is the fitting part. The folding surface where the rotating shaft 26 is located is a horizontal folding surface, and the folding surface where the fitting part is located is a closing folding surface.

[0036] Specifically, the size of the horizontal folding surface is suitable for the size of the opening at the lower end of the fuselage 1. At the same time, the horizontal folding surface can be a complete planar structure or a hollow structure, such as a "square" structure or a "day" structure. However, the horizontal folding surface and the closing folding surface need to be made of hard materials to ensure that the first protective cover and the second protective cover can maintain their original shapes and will not deform when承受撞击力 (withstand impact force).

[0037] The function of the closing folding surface is not only to prevent collisions but also to prevent damage to the imaging device caused by protrusions on the ground. Therefore, in addition to a complete planar structure, strip - shaped grooves or dense holes can also be set on the plane. The size of the grooves or holes is such that it can prevent protrusions such as stones on the ground from entering the protection space formed by the mutual fitting of the first protective cover and the second protective cover.

[0038] Figure 3 In this structure of the protective component 27, the rotation of the first gear 23 and the second gear 23 drives the rotation of the rotating shaft 26 of the first protective cover and the second protective cover, so that the horizontal folding surfaces of the first protective cover and the second protective cover rotate to a vertical state, and the fitting parts at the ends of the two closing folding surfaces are mutually fitted.

[0039] Therefore, one end of the rotating shaft 26 of the first protective cover is fixedly installed at the center of the inner side of the first gear 23, and the other end is rotatably installed on the machine body 1; one end of the rotating shaft 26 of the second protective cover is fixedly installed at the center of the inner side of the second gear 24, and the other end is rotatably installed on the machine body 1.

[0040] In some specific embodiments, such as Figure 2 As shown, a fixed frame 25 is rotatably connected to the outer center of the first gear 23 and the second gear 24, and the upper end of the fixed frame 25 is fixedly connected to the body 1.

[0041] In some specific embodiments, the driving component is an electrically controlled telescopic rod 21, one end of which is hinged to the body 1, and the other end is mounted on the first gear 23 or the second gear 24 through a hinge 22.

[0042] In summary, when the first gear 23 and the second gear 24 rotate in opposite directions, the first protective cover and the second protective cover are driven to rotate around their respective axes 26 in opposite directions, so as to bring the mating parts closer or further apart.

[0043] Example 3, based on Example 1, provides a second type of protective component and transmission component with specific structure and connection method.

[0044] like Figure 4 As shown, the first and second protective covers are arc-shaped surfaces, with one straight edge serving as the fixing part and the other straight edge serving as the fitting part.

[0045] Specifically, the size of the arc-shaped surface should be appropriate to the size of the opening at the lower end of the fuselage 1, and it should be made of a material with greater hardness so that when the first protective cover and the second protective cover are attached, they can maintain their original shape under a certain impact force.

[0046] This protective component 27 structure utilizes the rotation of the first gear 23 and the second gear 24 to drive the first protective cover and the second protective cover to rotate coaxially with the first gear 23 and the second gear 24 respectively. The first protective cover and the second protective cover rotate and move until they fit together at the end of the arc-shaped surface. This achieves protection for the camera device 13.

[0047] Therefore, to achieve more stable transmission, the first gear 23 includes: a first synchronous gear and a second synchronous gear. The two ends of the fixing part of the first protective cover are respectively fixed to the first synchronous gear and the second synchronous gear, and the fixing point is not the center point. The second gear 24 includes: a third synchronous gear and a fourth synchronous gear. The two ends of the fixing part of the second protective cover are respectively fixed to the third synchronous gear and the fourth synchronous gear, and the fixing point is not the center point.

[0048] Synchronous gear one and synchronous gear three mesh with each other, and synchronous gear two and synchronous gear four mesh with each other.

[0049] When the first gear 23 and the second gear 24 rotate in opposite directions, the first protective cover is driven to rotate coaxially with the first gear 23, and the second protective cover is driven to rotate coaxially with the second gear 24, so as to achieve the approach or distance of the contact parts.

[0050] In some other specific embodiments, the first gear 23 and the second gear 24 are mounted on the body 1 via a fixed shaft 30. The fixed shaft does not rotate, and the first gear 23 and the second gear 24 rotate around the fixed shaft under the force of the driving member.

[0051] In some specific embodiments, the driving component is a rotary motor, which is connected to the first gear 23 or the second gear 24 in a transmission connection.

[0052] In a more specific embodiment, the rotating motor is connected to the first gear 23 or the second gear 24 via a lead screw, or the transmission can be achieved through gear meshing.

[0053] In summary, when the first gear 23 and the second gear 24 rotate in opposite directions, the first protective cover is driven to rotate coaxially with the first gear 23, and the second protective cover is driven to rotate coaxially with the second gear 24, so as to achieve the approach or distance of the contact part at the end of the arc-shaped surface.

[0054] Example 4: Based on Example 1, this example provides a specific structure and connection method for a falling buffer device.

[0055] like Figures 3 to 5 As shown, the descent buffer device is installed on the upper surface of the fuselage 1 and includes: parachute 218 and release assembly.

[0056] The release assembly includes: spring 217, push plate 216, limit plate 215, and moving part.

[0057] Push plate 216 is connected to one end of spring 217, and the other end of spring 217 is fixed to fuselage 1. The pull cord of parachute 218 is connected to push plate 216. One end of limit plate 215 is used to press push plate 216, so that spring 217 is in a compressed state, and the other end is connected to a moving part. When the moving part moves and pulls open limit plate 215, spring 217 is released, pushing out push plate 216, thereby releasing parachute 218; the moving part is connected to the controller signal.

[0058] In some specific embodiments, a first outer shell 210 is fixedly connected to the upper end of the fuselage 1, and a second outer shell 211 is fixedly connected to one end of the first outer shell 210. The first outer shell 210 and the second outer shell 211 are used to protect the fall buffer device.

[0059] The fixed end of the movable component is installed inside the second housing 211, and the movable end is connected to the limiting plate 215. The second housing 211 has a sliding groove for the limiting plate 215. Driven by the movable component, the limiting plate 215 moves forward along the sliding groove to limit the push plate 216, or moves backward until the push plate 216 is released and pushed out.

[0060] When the accelerometer 13 detects a falling acceleration of the drone that exceeds a preset value, the controller activates the moving component. The moving component moves to pull open the limit plate 215, and the parachute 218 is released to slow down the falling speed of the drone and reduce the impact force when the drone lands.

[0061] In some specific embodiments, the moving element is a second electrically operated telescopic rod.

[0062] After the accelerometer 13 senses the fall of the fuselage 1, the drive unit is activated and the second electric telescopic rod is retracted. The protective components 27 under the fuselage fit together to protect the camera device 12. At the same time, the second electric telescopic rod pulls the limit plate 215 to move. After the limit plate 215 is pulled out, the elastic potential energy of the spring 217 pushes the parachute 218 to pop out quickly. The airflow during the fall blows the parachute 218 to unfold, thereby using the parachute 218 to buffer and decelerate the fall of the fuselage 1.

[0063] Later, the parachute 218 can be folded and inserted into the first outer shell 210 to compress the push plate 216 and the spring 217. Then, the second electric telescopic rod is activated to extend and retract, pushing the limit plate 215 to move and restrict the push plate 216.

[0064] In some specific embodiments, the parachute 218 is also provided with a dust cover 214 at the ejection port. When the parachute 218 is ejected, the dust cover 214 opens under the action of elastic force.

[0065] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A drone with autonomous anti-fall capability, comprising: The fuselage, the wings connected to the fuselage, and the camera device mounted on the lower surface of the fuselage are characterized in that they further include: a shock-proof device for protecting the camera device; The drop protection device includes: a protective component, a driving component, and a transmission component; The protective components include: a first protective cover and a second protective cover, which are respectively movably disposed in the openings on both sides of the camera device; The transmission assembly includes: a first gear and a second gear installed inside the body and meshing with each other, the first gear being connected to a first protective cover and the second gear being connected to a second protective cover; The driving component is connected to the first gear or the second gear for driving the first gear and the second gear to rotate synchronously in opposite directions, thereby driving the first protective cover and the second protective cover to move away from each other or move closer to each other until the ends of the first protective cover and the second protective cover are connected below the camera device.

2. The drone with autonomous anti-fall function according to claim 1, characterized in that, The driving component is an electrically controlled telescopic rod, one end of which is hinged to the machine body, and the other end is hinged to the first gear or the second gear.

3. The drone with autonomous anti-fall function according to claim 1, characterized in that, The driving component is a rotary motor, which is connected to a first gear or a second gear.

4. The drone with autonomous anti-fall function according to claim 3, characterized in that, The rotating motor is connected to the first gear or the second gear via a lead screw.

5. The drone with autonomous anti-fall function according to any one of claims 1-4, characterized in that, The first and second protective covers are bent surfaces, with one straight edge serving as a pivot and the other straight edge serving as a fitting part; One end of the shaft of the first protective cover is fixedly installed at the center of the first gear, and the other end is rotatably installed on the machine body; One end of the shaft of the second protective cover is fixedly installed at the center of the second gear, and the other end is rotatably installed on the machine body; When the first gear and the second gear rotate in opposite directions, the first protective cover and the second protective cover are driven to rotate around their respective axes in opposite directions, so as to bring the mating parts closer or further apart.

6. The drone with autonomous anti-fall function according to any one of claims 1-4, characterized in that, The first and second protective covers are arc-shaped surfaces, with one straight edge serving as a fixing part and the other straight edge serving as a fitting part; The first gear includes: a first synchronous gear and a second synchronous gear. The two ends of the fixing part of the first protective cover are respectively fixed on the first synchronous gear and the second synchronous gear, and the fixing point is a non-center point. The second gear includes: synchronous gear three and synchronous gear four. The two ends of the fixing part of the second protective cover are respectively fixed on synchronous gear three and synchronous gear four, and the fixing point is a non-center point. Synchronous gear one and synchronous gear three mesh with each other, and synchronous gear two and synchronous gear four mesh with each other; When the first gear and the second gear rotate in opposite directions, the first protective cover is driven to rotate coaxially with the first gear, and the second protective cover is driven to rotate coaxially with the second gear, so as to make the mating parts move closer or further apart.

7. The drone with autonomous anti-fall function according to claim 1, characterized in that, Also includes: The controller and the accelerometer; the accelerometer is used to collect the fall acceleration of the UAV and transmit it to the controller; The controller is used to control the operation of the drive components.

8. The drone with autonomous anti-fall function according to claim 7, characterized in that, Also includes: A fall buffer device is used to slow down the fall of a drone during its descent, thereby reducing the impact force when the drone lands. The drop buffer device is installed on the upper surface of the fuselage.

9. The drone with autonomous anti-fall function according to claim 8, characterized in that, The descent buffer device includes: a parachute and a release assembly; The release assembly includes: a spring, a push plate, a limiting plate, and a moving component; The push plate is connected to one end of the spring, and the other end of the spring is fixed to the machine body; The parachute is mounted on the push plate. One end of the limiting plate is used to press the push plate, so that the spring is in a compressed state. The other end is connected to the moving part. When the moving part moves and pulls open the limiting plate, the spring is released and pushed out of the push plate, thereby releasing the parachute. The moving part is connected to the controller via a signal.

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