Floating supporting device for emergency water surface landing of unmanned aerial vehicle

Abstract

The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to an unmanned aerial vehicle emergency water surface landing floating supporting device which comprises a vehicle body, a pair of box bodies are fixed to the top of the vehicle body, an outlet is formed in one side of each box body, a winding drum is rotationally connected into each box body through a center shaft, and a floating belt is wound on each winding drum. A balance weight capable of being inserted into the outlet is fixed to the free end of the floating belt and detachably connected with the box body, a handle wheel is fixed to one end of the center shaft, and a push-out mechanism is arranged on the box body. According to the unmanned aerial vehicle, when the unmanned aerial vehicle lands emergently, the push-out mechanism pushes away the balance weight from the box body, the balance weight and the exposed part of the floating belt can continuously pull out the remaining floating belt from the winding drum due to wind resistance, and the floating belt pulled out is more and more, so that the landing speed can be slowed down in the landing process of the unmanned aerial vehicle through the floating belt; and finally, the unmanned aerial vehicle floats on the water surface under the buoyancy action of the floating belt.

Description

Technical Field

[0001] The invention relates to the technical field of unmanned aerial vehicles, and in particular to a floating support device for emergency water landing of unmanned aerial vehicles. Background Art

[0002] At present, with the popularization and application of drones, crashes caused by subjective and objective reasons such as the drone controller's unskilled control technology, misoperation, climate, flight environment, battery power failure, etc. occur frequently.

[0003] Therefore, when an emergency occurs to a drone above water, an emergency water surface floating support device is needed to allow the drone to make an emergency landing. However, existing devices generally need to be placed on the water surface. In an emergency, the drone is likely to be out of control or difficult to control and unable to land accurately on the floating support device. Therefore, the present application proposes an emergency water surface landing floating support device that can be installed on a drone, which can solve the above problem. Summary of the invention

[0004] Based on the technical problems existing in the prior art, the present invention proposes a floating support device for emergency water landing of a UAV.

[0005] The present invention proposes a floating support device for emergency water landing of a drone, comprising a machine body, a pair of boxes fixed on the top of the machine body, an outlet provided on one side of the box body, a reel rotatably connected to the box body through a central axis, a floating belt wound on the reel, a counterweight that can be inserted into the outlet fixed to the free end of the floating belt, the counterweight is detachably connected to the box body, a handle wheel is fixed to one end of the central axis, a push-out mechanism is provided on the box body, and the push-out mechanism pushes the counterweight away from the box body when the drone makes an emergency landing, and the exposed parts of the counterweight and the floating belt are affected by wind resistance. , the remaining floating tape will be continuously pulled out from the reel. As more and more floating tape is pulled out, the wind resistance generated will be greater. In this way, the floating tape can be used to slow down the landing speed of the UAV during landing. After falling into the water, the contact area between the floating tape and the water surface is large, so the depth of the UAV sinking into the water can be reduced. Finally, the buoyancy of the floating tape makes the UAV float on the water surface and land. Moreover, since the floating tape is pulled out very long and floats on the water surface, it is also convenient for users to quickly find the landing position of the UAV. The floating tape can be rewound onto the reel by turning the handle wheel.

[0006] Preferably, the ejection mechanism includes a push rod, a fixed block is fixed on the side of the box, the fixed block is slidably connected to the push rod through a guide column, the push rod and the fixed block are connected by a first spring, the push rod is connected to a trigger assembly, and when the drone makes an emergency landing, the trigger assembly pushes the push rod outward, and the push rod contacts the counterweight and pushes it out of the outlet, so that the counterweight and the box are separated, and then under the action of the first spring, the push rod is pulled back to the initial position.

[0007] Preferably, the trigger assembly includes a gear rotatably connected to the end of the central axis away from the handle wheel through a one-way bearing, a cam sleeved on the central axis is fixed to the rear of the gear, a support rod is installed on the body, a main rod is inserted on the support rod, and a rack meshing with the gear is fixed on the main rod. As the drone descends faster and faster, the wind resistance on the main rod becomes greater and greater, the main rod will move upward, driving the rack to move at the same time, the rack meshes with the gear, so that the gear and the cam rotate, the cam hits the end of the push rod, and pushes the push rod outward. Since the gear and the central axis are connected by a one-way bearing, when the floating belt is reeled in by the handle wheel, the one-way bearing is in a free state, the gear will not rotate accordingly, and thus will not affect the reeling process.

[0008] Preferably, a conical wind resistance plate is fixed to the bottom end of the main pole, and a dense array of wind holes are formed on the wind resistance plate. An airbag is fixed to the inner surface of the wind resistance plate. As the UAV descends faster and faster, the wind resistance encountered by the airbag becomes greater and greater. The wind force acts on the airbag, causing the airbag to be gradually flattened. The airbag will block more wind holes, and the area of ​​the wind resistance plate encountered by the wind will increase. This can increase the wind resistance encountered by the main pole and the wind resistance plate as a whole, thereby allowing the main pole to move upward earlier.

[0009] Preferably, a first magnet is installed on the side of the counterweight close to the box body, and a second magnet that can attract the first magnet is installed on the box body, so that the counterweight can be fixed on the box body through the magnetic force between the first magnet and the second magnet, and can be quickly separated from the box body after being hit by the push rod.

[0010] Preferably, a suction cup capable of being adsorbed on the box body is installed on one side of the counterweight close to the box body, so that the counterweight can be fixed on the box body through the suction cup and can be quickly separated from the box body after being hit by the push rod.

[0011] Preferably, a parachute is arranged at the top position of the main pole, and the parachute includes an umbrella cloth and a foldable umbrella frame. A storage tube for storing the parachute, which is sleeved on the main pole, is fixed to the top of the support pole. The storage tube is provided with a sliding opening for the rack to pass through. In an initial state, the umbrella frame is in a folded state and is wrapped in the storage tube and cannot be unfolded. When the main pole moves upward until the umbrella frame completely leaves the storage tube, the wind force will open the umbrella frame through the umbrella cloth, so that the effect of emergency landing can be further achieved, thereby slowing down the falling speed of the drone.

[0012] Preferably, the umbrella stand comprises a sleeve, a ring and a plurality of first ribs and second ribs, the ring is fixed to the top end of the main pole, the sleeve is sleeved on the main pole, the bottom end of the first rib is rotatably connected to the sleeve, the top end is rotatably connected to the second rib, the top end of the second rib is rotatably connected to the ring, and the umbrella cloth is fixed to the plurality of second ribs, thereby forming an umbrella stand that can be folded and unfolded along the main pole.

[0013] Preferably, a card slot is provided on the sleeve, and a key slot is provided at the bottom end of the main rod. A button is connected to the key slot through a second spring. A connecting rod located inside the main rod is provided on the button. A card that passes through the main rod and can be inserted into the card slot is provided at the top end of the connecting rod. When the umbrella stand is unfolded, the sleeve will move upward along the main rod, and push the card and the connecting rod inward when it contacts the card. When the umbrella stand is fully opened, the card slot is at the position of the card. At this time, under the action of the second spring, the card on the connecting rod is inserted into the card slot, so that the umbrella stand is stabilized in a fully unfolded state. The umbrella stand can be manually folded by pressing the button.

[0014] Compared with the prior art, the present invention provides a floating support device for emergency water landing of a UAV, which has the following beneficial effects:

[0015] 1. A floating support device for emergency water landing of a UAV, by setting a floating belt, when the UAV makes an emergency landing, the push-out mechanism pushes the counterweight away from the box body, and the exposed parts of the counterweight and the floating belt will continue to pull out the remaining floating belt from the reel due to wind resistance. As more and more floating belts are pulled out, the wind resistance generated becomes greater, so that the landing speed of the UAV can be slowed down by the floating belt during the landing process, and after falling to the water surface, the contact area between the floating belt and the water surface is large, so the depth of the UAV entering the water can be reduced, and finally the buoyancy of the floating belt makes the UAV float on the water surface and land, and because the floating belt is pulled out very long and floats on the water surface, it is also convenient for users to quickly find the landing position of the UAV, and the floating belt can be rewound onto the reel by turning the handle wheel.

[0016] 2. A floating support device for emergency water landing of UAV, which is provided with a push-out mechanism and a trigger assembly. As the UAV descends faster and faster, the wind resistance on the main rod becomes greater and greater, and the main rod will move upward, driving the rack to move at the same time. The rack meshes with the gear, causing the gear and the cam to rotate. The cam hits the end of the push rod, pushing the push rod outward. After the push rod contacts the counterweight, it is pushed out of the outlet, thereby quickly separating the counterweight and the box.

[0017] 3. A floating support device for emergency water landing of a UAV is provided. By arranging an airbag and a wind resistance plate, as the UAV descends faster and faster, the wind resistance on the airbag becomes greater and greater. The wind force acts on the airbag, causing the airbag to be gradually flattened. The airbag will block more wind holes, so that the area of ​​the wind resistance plate that is subject to wind resistance will increase. In this way, the wind resistance on the main pole and the wind resistance plate as a whole can be increased, so that the main pole can move upward earlier.

[0018] 4. A floating support device for emergency water landing of a UAV, which is provided with a counterweight detachably connected to a box body, and the counterweight and the box body can be connected to the box body by means of magnetism, suction cup, Velcro, adhesion, snaps, etc., so that the counterweight can be quickly separated from the box body after being hit by a push rod.

[0019] 5. A floating support device for emergency water landing of UAVs. By setting a parachute, in the initial state, the parachute frame is in a folded state and wrapped in a storage tube and cannot be unfolded. When the main rod moves upward until the parachute frame completely leaves the storage tube, the wind will open the parachute frame through the parachute cloth, so as to further achieve the effect of emergency landing, thereby slowing down the falling speed of the UAV. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a floating support device for emergency water landing of a UAV proposed by the present invention;

[0021] Figure 2 A partial structural schematic diagram of a floating support device for emergency water landing of a UAV proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the first angle structure of a box of a floating support device for emergency water landing of a UAV proposed by the present invention;

[0023] Figure 4 This is a schematic diagram of the second angle structure of a box body of a floating support device for emergency water landing of a UAV proposed by the present invention;

[0024] Figure 5 A schematic diagram of a counterweight structure of a floating support device for emergency water landing of a UAV proposed by the present invention;

[0025] Figure 6 For the present invention Figure 3 A schematic diagram of the enlarged structure of the proposed floating support device for emergency water landing of UAV at point A;

[0026] Figure 7 This is a schematic diagram of the structure of a floating support device for emergency water landing of a UAV proposed by the present invention when the counterweight does not leave the box;

[0027] Figure 8 A schematic diagram of the shape change of an airbag of a floating support device for emergency water landing of a UAV proposed by the present invention during the descent process;

[0028] Fig. 9 A schematic diagram of the structure of a parachute of a floating support device for emergency water landing of a UAV proposed by the present invention being stored in a storage tube;

[0029] Fig.10 This is a schematic diagram of the umbrella frame structure of a floating support device for emergency water landing of a UAV proposed by the present invention;

[0030] Fig.11 For the present invention Fig.10 A schematic diagram of the enlarged structure of the proposed floating support device for emergency water landing of UAV at position B;

[0031] Fig.12 For the present invention Fig.10 A schematic diagram of the enlarged structure of the C position of a proposed floating support device for emergency water landing of UAV.

[0032] In the figure: 1, machine body; 2, box body; 3, central axis; 4, reel; 5, floating belt; 6, counterweight; 7, first magnet; 8, handle wheel; 9, gear; 10, cam; 11, push rod; 12, fixed block; 13, guide column; 14, first spring; 15, support rod; 16, main rod; 17, rack; 18, wind resistance plate; 19, air bag; 20, wind hole; 21, storage tube; 22, sleeve; 23, first umbrella rib; 24, ring; 25, second umbrella rib; 26, umbrella cloth; 27, slide; 28, slot; 29, connecting rod; 30, card; 31, button; 32, keyway; 33, second spring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Reference Figure 1-12 A floating support device for emergency water landing of a drone comprises a body 1, a pair of boxes 2 are fixed on the top of the body 1, an outlet is provided on one side of the box 2, a reel 4 is rotatably connected to the box 2 through a central axis 3, a floating belt 5 is wound on the reel 4, a counterweight 6 that can be inserted into the outlet is fixed to the free end of the floating belt 5, and the counterweight 6 is detachably connected to the box 2, a handle wheel 8 is fixed to one end of the central axis 3, and a push-out mechanism is provided on the box 2. When the drone makes an emergency landing, the push-out mechanism pushes the counterweight 6 away from the box 2. The exposed parts of the counterweight 6 and the floating belt 5 are damaged. When there is wind resistance, the remaining floating belt 5 will be continuously pulled out from the reel 4. As more and more floating belts 5 are pulled out, the wind resistance generated will be greater. In this way, the landing speed of the UAV can be slowed down by the floating belt 5 during the landing process. After falling into the water, the contact area between the floating belt 5 and the water surface is large, so the depth of the UAV entering the water can be reduced. Finally, the buoyancy of the floating belt 5 makes the UAV float on the water surface and land. In addition, since the floating belt 5 is pulled out very long and floats on the water surface, it is also convenient for users to quickly find the landing position of the UAV. By turning the handle wheel 8, the floating belt 5 can be rewound onto the reel 4.

[0036] Furthermore, the ejection mechanism includes a push rod 11, a fixed block 12 is fixed on the side of the box body 2, the fixed block 12 is slidably connected to the push rod 11 through a guide column 13, the push rod 11 and the fixed block 12 are connected by a first spring 14, the push rod 11 is connected to a trigger assembly, and when the drone makes an emergency landing, the trigger assembly pushes the push rod 11 outward, and the push rod 11 contacts the counterweight 6 and pushes it out of the outlet, so that the counterweight 6 is separated from the box body 2, and then under the action of the first spring 14, the push rod 11 is pulled back to the initial position.

[0037] Furthermore, the trigger assembly includes a gear 9 rotatably connected to the end of the central axis 3 away from the handle wheel 8 through a one-way bearing, a cam 10 sleeved on the central axis 3 is fixed behind the gear 9, a support rod 15 is installed on the body 1, a main rod 16 is inserted on the support rod 15, and a rack 17 meshing with the gear 9 is fixed on the main rod 16. As the speed of the drone descends faster and faster, the wind resistance on the main rod 16 becomes greater and greater, the main rod 16 will move upward, and at the same time drive the rack 17 to move, the rack 17 meshes with the gear 9, so that the gear 9 and the cam 10 rotate, the cam 10 hits the end of the push rod 11, and pushes the push rod 11 outward. Since the gear 9 and the central axis 3 are connected by a one-way bearing, when the floating belt 5 is reeled in by the handle wheel 8, the one-way bearing is in a free state at this time, and the gear 9 will not rotate accordingly, thereby not affecting the reeling process.

[0038] Furthermore, a conical wind resistance plate 18 is fixed to the bottom end of the main rod 16, and dense wind holes 20 are opened on the wind resistance plate 18. An air bag 19 is fixed to the inner surface of the wind resistance plate 18. Figure 8 As shown, as the UAV descends faster and faster, the wind resistance encountered by the airbag 19 becomes greater and greater, and the wind force acts on the airbag 19, causing the airbag 19 to be gradually flattened. The airbag 19 will block more wind holes 20, so that the area of ​​the wind resistance plate 18 that is subject to wind resistance will increase, thereby increasing the wind resistance encountered by the main rod 16 and the wind resistance plate 18 as a whole, thereby allowing the main rod 16 to move upward earlier.

[0039] Furthermore, a first magnet 7 is installed on the side of the counterweight 6 close to the box body 2, and a second magnet that can attract the first magnet 7 is installed on the box body 2, so that the counterweight 6 can be fixed on the box body 2 through the magnetic force between the first magnet 7 and the second magnet, and can be quickly separated from the box body 2 after being hit by the push rod 11.

[0040] In another embodiment, a suction cup capable of being adsorbed on the box body 2 is installed on one side of the counterweight 6 close to the box body 2, so that the counterweight 6 can be fixed on the box body 2 through the suction cup and quickly separated from the box body 2 after being hit by the push rod 11.

[0041] In another embodiment, the counterweight 6 may also be connected to the box body 2 by means of Velcro, adhesive, snaps, etc.

[0042] In another embodiment, a parachute is provided at the top position of the main pole 16, and the parachute includes an umbrella cloth 26 and a foldable umbrella frame. A storage tube 21 for storing the parachute is fixed to the top of the support rod 15 and is sleeved on the main pole 16. A sliding opening 27 is provided on the storage tube 21 for the rack 17 to pass through. In an initial state, the umbrella frame is in a folded state and is wrapped in the storage tube 21 and cannot be unfolded. When the main pole 16 moves upward until the umbrella frame completely leaves the storage tube 21, the wind force will open the umbrella frame through the umbrella cloth 26, so that the effect of emergency landing can be further achieved, thereby slowing down the falling speed of the drone.

[0043] Furthermore, the umbrella stand includes a sleeve 22, a ring 24 and a plurality of first ribs 23 and second ribs 25, the ring 24 is fixed to the top end of the main pole 16, the sleeve 22 is sleeved on the main pole 16, the bottom end of the first rib 23 is rotatably connected to the sleeve 22, the top end is rotatably connected to the second rib 25, the top end of the second rib 25 is rotatably connected to the ring 24, and the umbrella cloth 26 is fixed to the plurality of second ribs 25, thereby forming an umbrella stand that can be folded and unfolded along the main pole 16.

[0044] Furthermore, a card slot 28 is provided on the sleeve 22, and a key slot 32 is provided at the bottom end of the main rod 16. A button 31 is connected to the key slot 32 through a second spring 33. A connecting rod 29 located inside the main rod 16 is provided on the button 31. A card 30 that passes through the main rod 16 and can be inserted into the card slot 28 is provided at the top end of the connecting rod 29. When the umbrella stand is unfolded, the sleeve 22 will move upward along the main rod 16, and push the card 30 and the connecting rod 29 inward when contacting the card 30. When the umbrella stand is fully opened, the card slot 28 is at the position of the card 30. At this time, under the action of the second spring 33, the card 30 on the connecting rod 29 is inserted into the card slot 28, so that the umbrella stand is stabilized in a fully unfolded state. By pressing the button 31, the umbrella stand can be manually folded.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A floating support device for emergency water landing of an unmanned aerial vehicle, comprising a body (1), characterized in that: A pair of boxes (2) are fixed on the top of the body (1), one side of the box (2) is provided with an outlet, a reel (4) is rotatably connected to the box (2) via a central axis (3), a floating belt (5) is wound on the reel (4), a counterweight (6) that can be inserted into the outlet is fixed to the free end of the floating belt (5), the counterweight (6) is detachably connected to the box (2), one end of the central axis (3) is fixed with a handle wheel (8), and a push-out mechanism is provided on the box (2), the push-out mechanism is used to push the counterweight (6) away from the box (2) when the UAV makes an emergency landing, the counterweight (6) and the floating belt (5) continuously pull the remaining floating belt (5) from the reel (4) under the action of wind resistance, so that the floating belt (5) slows down the landing speed of the UAV during the landing process, and the floating belt (5) floats on the water surface after falling to the water surface.

2. A floating support device for emergency water landing of a UAV according to claim 1, characterized in that: The ejection mechanism comprises a push rod (11), a fixed block (12) is fixed on the side of the box body (2), the fixed block (12) is slidably connected with the push rod (11) through a guide column (13), the push rod (11) and the fixed block (12) are connected through a first spring (14), and the push rod (11) is connected to a trigger assembly, which is used to push the push rod (11) outward when the drone makes an emergency landing.

3. A floating support device for emergency water landing of a UAV according to claim 2, characterized in that: The trigger assembly comprises a gear (9) rotatably connected to the end of the central shaft (3) away from the handle wheel (8) through a one-way bearing, a cam (10) sleeved on the central shaft (3) is fixed behind the gear (9), a support rod (15) is installed on the body (1), a main rod (16) is inserted on the support rod (15), and a rack (17) meshingly connected with the gear (9) is fixed on the main rod (16).

4. The floating support device for emergency water landing of a UAV according to claim 3 is characterized in that: A conical wind resistance plate (18) is fixed to the bottom end of the main rod (16), densely distributed wind holes (20) are opened on the wind resistance plate (18), and an air bag (19) is fixed on the inner surface of the wind resistance plate (18).

5. The floating support device for emergency water landing of a UAV according to claim 1 is characterized in that: A first magnet (7) is installed on a side of the counterweight (6) close to the box body (2), and a second magnet capable of attracting the first magnet (7) is installed on the box body (2).

6. The floating support device for emergency water landing of a UAV according to claim 3 is characterized in that: A suction cup capable of being adsorbed on the box body (2) is installed on one side of the counterweight (6) close to the box body (2).

7. The floating support device for emergency water landing of a UAV according to claim 3 is characterized in that: A parachute is arranged at the top of the main rod (16), and the parachute comprises a parachute cloth (26) and a foldable parachute frame. A storage tube (21) for storing the parachute and sleeved on the main rod (16) is fixed to the top of the support rod (15), and a sliding opening (27) for the rack (17) to pass through is provided on the storage tube (21).

8. The floating support device for emergency water landing of a UAV according to claim 7, characterized in that: The umbrella frame comprises a sleeve (22), a ring (24), and a plurality of first ribs (23) and second ribs (25); the ring (24) is fixed to the top end of the main rod (16); the sleeve (22) is sleeved on the main rod (16); the bottom end of the first rib (23) is rotatably connected to the sleeve (22); the top end is rotatably connected to the second rib (25); the top end of the second rib (25) is rotatably connected to the ring (24); and the umbrella cloth (26) is fixed to the plurality of second ribs (25).

9. The floating support device for emergency water landing of a UAV according to claim 8, characterized in that: The sleeve (22) is provided with a card slot (28), the bottom end of the main rod (16) is provided with a key slot (32), the key slot (32) is connected to a button (31) via a second spring (33), the button (31) is provided with a connecting rod (29) located inside the main rod (16), and the top end of the connecting rod (29) is provided with a card (30) that passes through the main rod (16) and can be inserted into the card slot (28).

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