A kind of anti-fall shock absorption device for unmanned aerial vehicle

Abstract

The present application relates to a UAV anti-fall shock absorption device, and relates to the field of UAV protection devices, including a UAV body, a protective frame and a horizontal protection mechanism, wherein the protective frame is installed between the wings of two adjacent UAV bodies, and the protective frame is used to improve the wing structural strength of the UAV body, and the horizontal protection mechanism includes two driving members 1, two shaft seats and two rocker arms, wherein the driving member 1 is installed on the side of the UAV body away from the protective frame, a driving member 1 is connected to a shaft seat, two rocker arms are rotatably connected, one end of the rocker arm away from the other rocker arm is rotatably connected to the shaft seat, a driving member 1 is used to drive a rocker arm to move, and the connection between the two rocker arms is used to extend and abut against the ground. The present application has the effect of reducing the probability of wing breakage when the UAV body falls.

Description

Technical Field

[0001] The present application relates to the field of drone protection devices, and in particular to a drone anti-fall and shock-absorbing device. Background Art

[0002] A drone is a flying device that is controlled by a radio remote control device and a self-contained program control device. Drones are widely used in the civilian field and can be used for aerial photography, surveying and mapping, inspection and other tasks.

[0003] The relevant drone equipment includes a drone body and a camera. The drone body includes a fuselage and multiple wings. The wings are arranged on the fuselage at equal intervals along the circumferential direction of the fuselage. The end of each wing away from the fuselage is rotatably connected to a propeller. A motor is installed on the wing to drive the propeller to rotate. The camera is installed on the lower side of the fuselage. When the drone body is launched, the camera can take pictures and record videos to collect information. A chassis is installed on the fuselage. The chassis is located on both sides of the camera. The chassis is used to abut against the ground. The chassis can protect the camera. When the drone body lands, it can reduce the chance of collision and friction between the camera and the ground.

[0004] The above-mentioned related technical solutions have the following defects: when the drone body loses control and falls in the air due to weather or other reasons, the wings of the drone body are at great risk of breaking, thereby causing great economic losses. Summary of the invention

[0005] In order to reduce the probability of the wings breaking when the drone body falls, the present application provides a drone anti-fall shock absorption device.

[0006] The anti-fall and shock-absorbing device for a drone provided in this application adopts the following technical solution:

[0007] A UAV anti-fall shock absorption device comprises a UAV body, a protective frame and a horizontal protection mechanism. The protective frame is installed between the wings of two adjacent UAV bodies, and is used to improve the wing structural strength of the UAV body. The horizontal protection mechanism comprises two driving members, two shaft seats and two rocker arms. The driving member is installed on the side of the protective frame away from the UAV body, a driving member is connected to a shaft seat, two rocker arms are rotatably connected, one end of the rocker arm away from the other rocker arm is rotatably connected to the shaft seat, a driving member is used to drive a rocker arm to move, and the connection between the two rocker arms is used to extend and abut against the ground.

[0008] By adopting the above technical solution, a protective frame is arranged on the drone body, and the two ends of the protective frame are respectively fixed on the wings of two adjacent drone bodies, thereby improving the structural strength of the wings of the drone body. By arranging a horizontal protective mechanism on the protective frame, the driving member can drive the shaft seat to move toward or away from each other, so that the two rocker arms can rotate on the protective frame. When the drone body falls, the two driving members drive the shaft seat to move toward each other, so that the connection of the two rocker arms extends. When the drone rolls over and falls, the connection of the two rocker arms first abuts against the ground, thereby achieving the effect of protecting the drone body and reducing the probability of wing breakage when the drone body falls.

[0009] Optionally, the protective frame includes multiple cross frames, which are rod-shaped structures. The multiple cross frames are interconnected and assembled into a frame structure. The protective frame is mounted on the drone body and is detachably connected to the wings of the drone body. A horizontal protective mechanism is installed on each cross frame.

[0010] By adopting the above technical solution, by connecting multiple cross frames to each other to form a frame, the protective frame can be installed outside the drone body, and by arranging horizontal protection mechanisms on multiple cross frames, when the drone body falls, multiple horizontal protection mechanisms can be activated, further reducing the probability of the wings of the drone body breaking.

[0011] Optionally, an elastic member 1 is provided on the rocker arm, and the elastic member 1 is a long strip structure. One end of the elastic member 1 is installed on one rocker arm, and the other end is installed on the other rocker arm. The elastic member 1 is located on the side of the rocker arm away from the body of the drone.

[0012] By adopting the above technical solution, an elastic member 1 is arranged on the rocker arm, so that one end of the elastic member 1 is fixed on one rocker arm, and the other end is fixed on the other rocker arm. When the rocker arm rotates, the elastic member 1 can be deformed and fit on the surface of the rocker arm. When the drone body falls, the elastic member 1 first abuts against the ground, thereby achieving a shock-absorbing effect.

[0013] Optionally, a rotating shaft is provided on the rocker arm, and the two rocker arms are rotatably connected by the rotating shaft, and the end of the rotating shaft extends out from the rocker arm. One end of the rotating shaft is rotatably connected to two mounting seats, and each mounting seat is connected to a spring. One end of the spring is fixed on one mounting seat, and the other end is fixed on the mounting seat of an adjacent rotating shaft. Multiple springs are used to form a frame and frame the wings and propellers of the drone body.

[0014] By adopting the above technical solution, a rotating shaft is arranged on the rocker arm so that the end of the rotating shaft extends out. When the rocker arm moves, the rotating shaft can move with the rocker arm. By arranging two mounting seats on the rotating shaft, springs are arranged on the two mounting seats, so that multiple springs can form a frame structure. When the drone body falls, the driving member drives the rocker arm to move. At this time, the rotating shaft can pull the spring, so that the frame structure formed by the springs frames the wings and propellers of the drone body. When the drone body hits objects such as tree branches, the spring first contacts the object, thereby achieving the effect of protecting the wings of the drone body.

[0015] Optionally, a vertical protection mechanism is installed on the protection frame, and the vertical protection mechanism includes a driving member 2 and an elastic member 2. The driving member 2 is installed on the protection frame and is located between the propellers of the drone body. The elastic member 2 is installed on the driving member 2. The driving member 2 is used to drive the elastic member 2 to rise to a position higher than the propeller of the drone body.

[0016] By adopting the above technical solution and setting a vertical protection mechanism on the protection frame, the driving member 2 can drive the elastic member 2 to move vertically back and forth. When the drone body flips over and falls, the driving member 2 can be extended to make the elastic member 2 be located higher than the propeller of the drone body, so that the elastic member 2 can first contact the ground, thereby achieving the effect of protecting the drone body.

[0017] Optionally, the elastic member 2 is configured as a long strip structure, one end of the elastic member 2 is fixed to the driving member 2, and the other end extends to the top of the drone body and is connected to other elastic members 2.

[0018] By adopting the above technical solution, by setting the elastic member 2 as a long strip structure, multiple elastic members 2 are connected to each other to form a cover body, thereby increasing the coverage area of ​​the elastic member 2. When the drone body collides with a smaller object such as a stone, the elastic member 2 can first contact the object, thereby achieving the effect of protecting the drone body.

[0019] Optionally, a counterweight is provided on the protective frame, and the counterweight is used to make the center of gravity of the protective frame coincide with the center of gravity of the drone body.

[0020] By adopting the above technical solution, three vertical protection mechanisms are arranged on the protection frame, so that there is no vertical protection mechanism on the horizontal frame in front of the camera, thereby keeping the camera's field of view open and reducing the probability of the driving component 2 blocking the camera lens. By arranging a counterweight on the protection frame, the center of gravity of the protection frame remains unchanged, thereby stabilizing the center of gravity of the drone body after it is launched, reducing the probability of the drone body tilting in the air.

[0021] Optionally, a detection module and a control module are installed on the drone body, the detection module is set as an inertial sensor, the control module is set as a controller, the inertial sensor is electrically connected to the controller, the output end of the controller is connected to multiple relays, and the relays are connected in series to the power supply circuit where the driver one and the driver two are located.

[0022] By adopting the above technical solution, a detection module is set on the drone body, so that the detection module can detect the tilt degree and acceleration of the drone body, and then detect whether the drone body loses weight and falls. By setting a control module on the detection module, the control module can receive the electrical signal of the detection module and control the action of the driving member 1 and the driving member 2, so that the horizontal protection mechanism and the vertical protection mechanism can act quickly to protect the drone body.

[0023] In summary, the beneficial technical effects of this application are:

[0024] 1. By arranging a protective frame on the drone body, the two ends of the protective frame are respectively fixed on the wings of two adjacent drone bodies, thereby improving the structural strength of the wings of the drone body. By arranging a horizontal protective mechanism on the protective frame, the driving member can drive the shaft seat to move toward or away from each other, so that the two rocker arms can rotate on the protective frame. When the drone body falls, the two driving members drive the shaft seat to move toward each other, so that the connection of the two rocker arms extends. When the drone rolls over and falls, the connection of the two rocker arms first abuts on the ground, thereby achieving the effect of protecting the drone body and reducing the probability of wing breakage when the drone body falls.

[0025] 2. By arranging a rotating shaft on the rocker arm, the end of the rotating shaft is extended. When the rocker arm moves, the rotating shaft can move with the rocker arm. By arranging two mounting seats on the rotating shaft, springs are arranged on the two mounting seats, so that multiple springs can form a frame structure. When the drone body falls, the driving member drives the rocker arm to move. At this time, the rotating shaft can pull the spring, so that the frame structure surrounded by the springs frames the wings and propellers of the drone body. When the drone body hits an object such as a branch, the spring first contacts the object, thereby achieving the effect of protecting the wings of the drone body;

[0026] 3. By setting a detection module on the drone body, the detection module can detect the tilt degree and acceleration of the drone body, and then detect whether the drone body is weightless and falling. By setting a control module on the detection module, the control module can receive the electrical signal of the detection module and control the action of the driving member 1 and the driving member 2, so that the horizontal protection mechanism and the vertical protection mechanism can act quickly to protect the drone body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the present application. Figure 1 .

[0028] Figure 2 This is a schematic diagram of the overall structure of the embodiment of the present application. Figure 2 .

[0029] Figure 3 It is a schematic diagram of the structure of the protective frame of an embodiment of the present application.

[0030] Figure 4 It is a schematic diagram of the structure of the horizontal protection mechanism of an embodiment of the present application.

[0031] Figure 5 It is a schematic diagram of the connection relationship between the rotating shaft, the mounting seat and the spring in an embodiment of the present application.

[0032] Figure 6 It is a logic block diagram of an embodiment of the present application.

[0033] Figure numerals: 1. UAV body; 11. Camera; 12. Base frame; 2. Protective frame; 21. Fixing bolt; 22. Cross frame; 3. Horizontal protection mechanism; 31. Driving member 1; 32. Axle seat; 33. Rocker arm; 331. Rotating shaft; 332. Mounting seat; 333. Spring; 34. Elastic member 1; 4. Vertical protection mechanism; 41. Driving member 2; 42. Elastic member 2; 43. Counterweight; 5. Detection module; 6. Control module. DETAILED DESCRIPTION

[0034] The present application is further described in detail below in conjunction with the accompanying drawings.

[0035] The present application embodiment discloses a drone anti-fall shock absorption device, referring to Figure 1 and Figure 2 , comprising a drone body 1 and a protective frame 2, the drone body 1 is equipped with four wings, the four wings are arranged at equal intervals along the circumferential direction, and each wing is equipped with a propeller. A camera 11 is arranged at the bottom of the drone body 1, and two base frames 12 are arranged at the bottom of the drone body 1, and the base frames 12 are respectively located on both sides of the camera 11.

[0036] Reference Figure 2 and Figure 3The protective frame 2 includes four cross frames 22, which are perpendicular to each other and connected by welding, and the cross frames 22 are assembled into a rectangular frame structure. The protective frame 2 is horizontally mounted on the drone body 1, and the corners of the protective frame 2 are detachably connected to the wings of the drone body 1 and are located under the propeller of the drone body 1. A through hole is provided at the connection between the two cross frames 22, and a fixing bolt 21 is provided in the through hole. The user can detachably connect the fixing bolt 21 to the wing, thereby making the protective frame 2 detachably connected to the drone body 1. The cross frames 22 support the wing. When the drone body 1 falls from the air, the protective frame 2 improves the structural strength of the wing and can reduce the probability of wing breakage.

[0037] Reference Figure 3 and Figure 4 , four horizontal protection mechanisms 3 are arranged on the protection frame 2, and one horizontal protection mechanism 3 is installed on each cross frame 22. The horizontal protection mechanism 3 includes two driving members 31, two shaft seats 32 and two rocker arms 33. The driving member 31 can be a linear motor. The housing of the linear motor is fixed on the protection frame 2, and the mover of a linear motor is rotatably connected to a shaft seat 32. The length direction of the linear motor is parallel to the length direction of the cross frame 22. The two rocker arms 33 are rotatably connected, and the rotating shaft formed by the rotatable connection of the two rocker arms 33 is in the vertical direction. One rocker arm 33 is rotatably connected to a shaft seat 32, and one end of the rocker arm 33 away from the other rocker arm 33 is rotatably connected to the shaft seat 32. When the movers of the two linear motors move away from each other, the linear motor drives the rocker arm 33 to move, so that the connection between the two rocker arms 33 is close to the drone body 1. When the movers of the linear motors approach each other, the linear motor drives the rocker arm 33 to move, so that the connection between the rocker arms 33 protrudes outward until the distance from the connection point of the rocker arm 33 to the drone body 1 is greater than the distance from the propeller to the drone body 1. When the drone body 1 tilts and falls, the connection between the two rocker arms 33 can hit the ground first, thereby achieving the effect of protecting the wings of the drone body 1 and reducing losses.

[0038] Reference Figure 3 , an elastic member 34 is installed on the rocker arm 33. The elastic member 34 is a long strip structure. The elastic member 34 can be made of elastic materials such as silicone or rubber. One end of the elastic member 34 can be fixed to a rocker arm 33 by bolts. The elastic member 34 is installed on the surface of the rocker arm 33 on one side away from the drone body 1. When the rocker arm 33 rotates, the elastic member 34 is deformed and fits on the rocker arm 33. When the rocker arm 33 hits the ground, the elastic member 34 first abuts against the ground to achieve a buffering effect, which can reduce the probability of the rocker arm 33 being hit and damaged.

[0039] Reference Figure 4, a rotating shaft 331 is provided on the rocker arm 33, and two rocker arms 33 are rotatably connected through the rotating shaft 331. The length direction of the rotating shaft 331 is the vertical direction, and the lower end of the rotating shaft 331 extends from the rocker arm 33. Two mounting seats 332 are rotatably connected to the rotating shaft 331, and springs 333 are installed on the mounting seats 332. One end of the spring 333 is fixed on one mounting seat 332, and the other end is fixed on the mounting seat 332 on the adjacent rotating shaft 331. Two springs 333 are installed on each rotating shaft 331 through the mounting seat 332. The springs 333 form a frame structure and are framed on the drone body 1. When the drone body 1 falls, the rocker arm 33 rotates, thereby driving the multiple rotating shafts 331 away from each other. At this time, the springs 333 are extended, and the frame formed by the springs 333 can frame the wings of the drone body 1. When the drone body 1 tilts and descends, branches and other debris first collide with the springs 333, thereby achieving the effect of protecting the drone body 1.

[0040] In other embodiments, reference Figure 5 Both ends of the rotating shaft 331 extend out of the rocker arm 33, and the upper end of the rotating shaft 331 extends to a height higher than the propeller of the drone body 1. Two mounting seats 332 are respectively installed at the upper and lower ends of the rotating shaft 331, and springs 333 are connected to the mounting seats 332. By installing the mounting seats 332 and the springs 333 at the upper end of the rotating shaft 331, when the rocker arm 33 drives the rotating shaft 331 to move, the springs 333 located on the upper and lower sides of the propeller can form a frame and frame the propeller, thereby further protecting the drone body 1 and reducing the probability of damage to the wings and propellers of the drone body 1.

[0041] Reference Figure 5 , a plurality of vertical protection mechanisms 4 are arranged on the protection frame 2, and the vertical protection mechanism 4 includes a driving member 41 and an elastic member 42. The driving member 41 can be an electric push rod, which is vertically installed in the middle of the horizontal frame 22, and the movable rod of the electric push rod is connected to the elastic member 42. The elastic member 42 can be made of materials such as silicone. The elastic member 42 is located at one end of the propeller of the electric push rod close to the drone body 1. When the drone body 1 falls, the electric push rod extends, so that the elastic member 42 can extend from the space between the two propellers, and then the position of the elastic member 42 is higher than the position of the propeller. When the drone body 1 flips over and hits the ground, the elastic member 42 can first contact the ground, thereby achieving the effect of protecting the wings and propellers of the drone body 1.

[0042] Reference Figure 6The drone body 1 is equipped with a detection module 5 and a control module 6. The detection module 5 is configured as an inertial sensor. The inertial sensor includes an acceleration sensor and an angular velocity sensor. The detection module 5 is used to detect whether the drone body 1 is weightless and has a falling tilt. The control module 6 is configured as a controller. The inertial sensor is electrically connected to the controller. The output end of the controller is connected to a relay. The relay is connected in series in the power supply circuit where the driving member 1 31 and the driving member 2 41 are located. When the drone body 1 loses weight and falls, the detection module 5 sends an electrical signal, the control module 6 receives the signal and controls the driving member 1 31 and the driving member 2 41 to move, thereby causing the rocker arm 33 to rotate and extend, causing the elastic member 2 42 to extend to a position higher than the propeller of the drone body 1, thereby achieving the effect of protecting the drone body 1.

[0043] In other embodiments, reference Figure 5 The protective frame 2 is provided with three vertical protective mechanisms 4, wherein the elastic member 2 42 is a long strip structure, one end of the elastic member 2 42 is fixed on the driving member 2 41, and the other end extends to the top of the drone body 1 and is connected to other elastic members 2 42. When the drone body 1 falls, the three driving members 2 41 extend at the same time, so that the cover body composed of the three elastic members 2 42 can protrude above the propeller, thereby protecting the drone body 1.

[0044] Reference Figure 5 The three vertical protection mechanisms 4 are respectively located on both sides and the rear of the camera 11. A counterweight 43 is installed on the horizontal frame 22 located in front of the camera 11. The weight of the counterweight 43 is the same as the weight of the vertical protection mechanism 4. The counterweight 43 is installed in the middle of the horizontal frame 22. The counterweight 43 is used to balance the weight of the protection frame 2, so that the drone body 1 can remain stable after taking off.

[0045] The implementation principle of the embodiment of the present application is as follows: by installing a protective frame 2 on the drone body 1, the protective frame 2 can strengthen the wing strength of the drone body 1; by setting a horizontal protective mechanism 3 on the protective frame 2, the driving member 1 31 can drive the rocker arm 33 to rotate through the shaft seat 32, so that the connection between the two rocker arms 33 can extend and abut against the ground, thereby reducing the probability of the wing hitting the ground when the drone body 1 falls; by installing a vertical protective mechanism 4 on the protective frame 2, the driving member 2 41 can drive the elastic member 2 42 to rise, thereby reducing the probability of the propeller hitting the ground when the drone body 1 falls, thereby achieving the effect of protecting the drone body 1.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A UAV anti-fall shock absorption device, characterized by: The invention comprises an unmanned aerial vehicle body (1), a protective frame (2) and a horizontal protective mechanism (3), wherein the protective frame (2) is installed between the wings of two adjacent unmanned aerial vehicle bodies (1), and the protective frame (2) is used to improve the structural strength of the wings of the unmanned aerial vehicle bodies (1). The horizontal protective mechanism (3) comprises two driving members (31), two shaft seats (32) and two rocker arms (33), wherein the driving member (31) is installed on the protective frame (2) at a side of the body away from the unmanned aerial vehicle body (1), and a driving member (31) is connected to a shaft seat ( The protective frame (2) is connected to the unmanned aerial vehicle (UAV) body (1) and the unmanned aerial vehicle (UAV) body (2) and the protective frame (2) is connected to the unmanned aerial vehicle (UAV) body (2) and the two rocker arms (33) are rotatably connected. One end of the rocker arm (33) away from the other rocker arm (33) is rotatably connected to the shaft seat (32). A driving member (31) is used to drive one rocker arm (33) to move. The connection between the two rocker arms (33) is used to extend and abut against the ground. The protective frame (2) includes a plurality of cross frames (22). The cross frames (22) are rod-shaped structures. The plurality of cross frames (22) are connected to each other and form a frame structure. The protective frame (2) is sleeved on the unmanned aerial vehicle body (1) and is connected to the unmanned aerial vehicle (UAV) body. The wings of the drone body (1) are detachably connected, and each cross frame (22) is equipped with a horizontal protection mechanism (3). The rocker arm (33) is provided with an elastic member (34). The elastic member (34) is a long strip structure. One end of the elastic member (34) is installed on one rocker arm (33), and the other end is installed on the other rocker arm (33). The elastic member (34) is located on the side of the rocker arm (33) away from the drone body (1). The rocker arm (33) is provided with a rotating shaft (331). The two rockers are The arm (33) is rotatably connected via a rotating shaft (331), the end of the rotating shaft (331) extends out from the rocker arm (33), one end of the rotating shaft (331) is rotatably connected to two mounting seats (332), each mounting seat (332) is connected to a spring (333), one end of the spring (333) is fixed to one mounting seat (332), and the other end is fixed to the mounting seat (332) of the adjacent rotating shaft (331), and the plurality of springs (333) are used to form a frame and frame the wings and propellers of the drone body (1).

2. The anti-fall shock absorption device for drone according to claim 1, characterized in that: A vertical protection mechanism (4) is mounted on the protection frame (2), and the vertical protection mechanism (4) comprises a second driving member (41) and a second elastic member (42). The second driving member (41) is mounted on the protection frame (2) and is located between the propellers of the drone body (1). The second elastic member (42) is mounted on the second driving member (41). The second driving member (41) is used to drive the second elastic member (42) to rise to a position higher than the propeller of the drone body (1).

3. The anti-fall shock absorption device for drone according to claim 2, characterized in that: The second elastic member (42) is configured as a long strip structure, one end of the second elastic member (42) is fixed to the second driving member (41), and the other end extends to the top of the drone body (1) and is connected to the other second elastic member (42).

4. The anti-fall shock absorption device for drone according to claim 3, characterized in that: The protection frame (2) is provided with a counterweight (43), and the counterweight (43) is used to make the center of gravity of the protection frame (2) coincide with the center of gravity of the drone body (1).

5. The anti-fall shock absorption device for drone according to claim 2, characterized in that: The drone body (1) is equipped with a detection module (5) and a control module (6); the detection module (5) is configured as an inertial sensor, and the control module (6) is configured as a controller; the inertial sensor is electrically connected to the controller; an output end of the controller is connected to a plurality of relays, and the relays are connected in series to a power supply circuit where a first drive element (31) and a second drive element (41) are located.

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