Unmanned aerial vehicle emergency recovery landing device

Abstract

The invention belongs to the technical field of parachutes, and relates to an unmanned aerial vehicle emergency recovery landing device which comprises a mounting box, hook-and-loop fasteners, a landing mechanism and a fixing mechanism, the hook-and-loop fasteners are connected to the two sides of the bottom of the mounting box, and the mounting box can be fixed to an unmanned aerial vehicle body through the hook-and-loop fasteners; a landing mechanism used for assisting the unmanned aerial vehicle body in landing is arranged in the mounting box, and a fixing mechanism used for fixing the landing mechanism in the mounting box is arranged in the mounting box. In the operation process of the unmanned aerial vehicle, if the explosion phenomenon occurs, the parachute can be opened, the falling speed of the unmanned aerial vehicle is buffered through the parachute, the situation that the unmanned aerial vehicle falls on the ground and is damaged is avoided, and economic losses caused when the air crash time of the unmanned aerial vehicle occurs are reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of parachutes and relates to an emergency recovery landing device for unmanned aerial vehicles (UAVs). Background Art

[0002] An unmanned aerial vehicle, abbreviated as "UAV", is an unpiloted 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 on - board computer. UAVs are widely used in fields such as communication relay, emergency rescue, environmental monitoring, and aerial photography. During the flight of a UAV, it is prone to crash accidents caused by failures in the control system, power system, and power system.

[0003] During the use of existing UAVs, when a crash occurs and the UAV crashes, it directly falls from a high altitude to the ground, which is likely to cause damage to the UAV and result in a large economic loss. Moreover, when a crash occurs during water surface operations, the UAV is likely to fall into the water and sink, thereby increasing the difficulty of salvaging the UAV, making it inconvenient to use. Summary of the Invention

[0004] In view of this, the present invention provides an emergency recovery landing device for UAVs.

[0005] An emergency recovery landing device for UAVs includes an installation box, a magic tape, a landing mechanism, and a fixing mechanism. Magic tapes are connected to both sides of the bottom of the installation box. The installation box can be fixed to the UAV body through the magic tapes. A landing mechanism for assisting the UAV body to land is provided inside the installation box, and a fixing mechanism for fixing the landing mechanism inside the installation box is provided inside the installation box. The landing mechanism includes a lifting plate, a first elastic member, a support frame, a second elastic member, a cross - guide frame, an installation rod, a third elastic member, a connecting rope, and a parachute. The lifting plate is slidably connected to the inside of the installation box. A first elastic member is connected between the lifting plate and the inner bottom of the installation box. Support frames are slidably connected to both sides of the lifting plate. A second elastic member is connected between the support frame and the lifting plate. A cross - guide frame is connected to the top of the lifting plate. Installation rods are slidably connected to the four sides of the cross - guide frame. A third elastic member is connected between the installation rod and the cross - guide frame. A connecting rope is connected to the installation rod, and a parachute is connected between multiple connecting ropes.

[0006] Further explanation, the fixing mechanism includes an electric push rod and a fixing insertion rod. Electric push rods are installed at the bottom of both sides of the lifting plate. A fixing insertion rod is connected to the telescopic rod of the electric push rod. Insertion holes are opened at the lower parts of both sides of the installation box. When the electric push rod extends, it can drive the fixing insertion rod to insert into the insertion holes.

[0007] Further description: It also includes a closing mechanism. The closing mechanism includes a cover plate, a connecting plate, a connecting frame, an elastic member IV, a pushing block and a guiding column. A cover plate is arranged on the top of the installation box. Both sides of the cover plate are connected with connecting plates. The two connecting plates are respectively located on both sides of the installation box. Two connecting frames are connected to both side surfaces of the installation box. Two guiding columns are connected to both side surfaces of the cover plate. The guiding columns are located inside the connecting frames. A pushing block is slidably connected inside the connecting frames. An elastic member IV is connected between the pushing block and the bottom inside the connecting frames.

[0008] Further description: It also includes a floating mechanism. The floating mechanism includes a guiding block, a floating plate, a guiding frame, a sliding frame, an adjusting screw rod and a docking plate. Guiding blocks are connected to both sides of the installation box. Guiding frames are connected to both sides of the top of the floating plate. A sliding frame is slidably connected inside the guiding frames. An adjusting screw rod is connected to the guiding frames by threads. The adjusting screw rod is in threaded cooperation with the sliding frame. A docking plate is connected to the sliding frame. The docking plate can be stuck on the guiding blocks.

[0009] Further description: It also includes an expanding mechanism. The expanding mechanism includes a fixed floating block, an expanding floating block, an extension plate, an inner column, a sliding plate, a positioning column, an elastic member V and an inner rod. A fixed floating block is connected to the middle of the bottom of the floating plate. A plurality of inner columns are slidably connected to the fixed floating block at circumferential uniform intervals. An elastic member V is connected between the inner columns and the fixed floating block. An expanding floating block is connected to the outside of the inner rod. A sliding plate is slidably connected to the top of the floating plate. Extension plates are connected to both sides of the sliding plate. The upper parts of the extension plates extend into the front and rear sides of the cover plate. A plurality of positioning columns are connected to the bottom of the sliding plate at circumferential uniform intervals. An inner rod is connected to the middle of the inner columns.

[0010] Further description: Fixing holes are formed in the inner rod. The positioning columns can be inserted into the fixing holes to fix the inner rod.

[0011] Further description: It also includes a counterweight ball. A counterweight ball is arranged on the parachute.

[0012] Further description: It also includes friction pads. Friction pads are installed on both sides of the bottom of the installation box.

[0013] The beneficial effects of the present invention are as follows: 1. During the operation of the drone, if a crash occurs, the parachute can be opened, and the speed of the drone during the fall is buffered by the parachute, avoiding the situation that the drone falls on the ground and is damaged, and reducing the economic loss when the drone crashes.

[0014] 2. When the drone in the present invention crashes at the water surface, if it falls into the water, the float board can make the drone body float on the water surface, preventing the drone from sinking into the water, making it more convenient to salvage the drone and avoiding the loss of the drone. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the present invention with the parachute opened.

[0017] Figure 3 It is a structural schematic diagram of the landing mechanism and the fixing mechanism of the present invention.

[0018] Figure 4 It is a structural schematic diagram of the closing mechanism of the present invention.

[0019] Figure 5 It is a first structural schematic diagram of the floating mechanism of the present invention.

[0020] Figure 6 It is a second structural schematic diagram of the floating mechanism of the present invention.

[0021] Figure 7 It is a first structural schematic diagram of the expansion mechanism of the present invention.

[0022] Figure 8 It is a second structural schematic diagram of the expansion mechanism of the present invention.

[0023] Figure 9 It is a first cross-sectional view of the expansion mechanism of the present invention.

[0024] Figure 10 It is a second cross-sectional view of the expansion mechanism of the present invention.

[0025] Figure 11 It is a structural schematic diagram of the parachute and the counterweight ball of the present invention.

[0026] Figure 12 It is a structural schematic diagram of the installation box and the friction pad of the present invention.

[0027] In the above drawings: 1: UAV body, 2: mounting box, 3: magic tape, 41: lifting plate, 42: first elastic member, 43: support frame, 44: second elastic member, 45: cross guide frame, 46: mounting rod, 47: third elastic member, 48: connecting rope, 49: parachute, 51: electric push rod, 52: fixed insertion rod, 61: cover plate, 62: connecting plate, 63: connecting frame, 64: fourth elastic member, 65: push block, 66: guide post, 71: guide block, 72: floating plate, 73: guide frame, 74: sliding frame, 75: adjusting screw, 76: docking plate, 81: fixed floating block, 82: extended floating block, 83: extension plate, 84: inner column, 85: sliding plate, 86: positioning post, 87: fifth elastic member, 88: inner rod, 9: counterweight ball, 10: friction pad. Detailed implementation manner

[0028] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of this invention are used to explain the present invention, but do not limit the present invention.

[0029] An emergency recovery landing device for a UAV, as Figures 1 - 3 shown, includes a mounting box 2, a magic tape 3, a landing mechanism, and a fixing mechanism. Magic tapes 3 are connected to both the left and right sides of the bottom of the mounting box 2. The mounting box 2 can be fixed to the UAV body 1 through the magic tapes 3. A landing mechanism for assisting the UAV body 1 to land is provided inside the mounting box 2, and a fixing mechanism for fixing the landing mechanism inside the mounting box 2 is provided inside the mounting box 2.

[0030] As Figure 2 and Figure 3 shown, the landing mechanism includes a lifting plate 41, a first elastic member 42, a support frame 43, a second elastic member 44, a cross guide frame 45, a mounting rod 46, a third elastic member 47, a connecting rope 48, and a parachute 49. The lifting plate 41 is slidably connected inside the mounting box 2. The lifting plate 41 can slide up and down along the mounting box 2. A first elastic member 42 is connected between the lifting plate 41 and the inner bottom of the mounting box 2. The first elastic member 42 is a compression spring. Support frames 43 are slidably connected to both the left and right sides of the lifting plate 41. The support frames 43 can slide left and right along the lifting plate 41. A second elastic member 44 is connected between the support frames 43 and the lifting plate 41. The second elastic member 44 is a connecting spring. A cross guide frame 45 is connected to the top of the lifting plate 41. Mounting rods 46 are slidably connected to the four sides of the cross guide frame 45. A third elastic member 47 is connected between the mounting rods 46 and the cross guide frame 45. The third elastic member 47 is a compression spring. A connecting rope 48 is connected to the mounting rod 46. A parachute 49 is connected between multiple connecting ropes 48. In the initial state, the parachute 49 is folded and stored inside the mounting box 2.

[0031] As shown Figure 3 in the figure, the fixing mechanism includes an electric push rod 51 and a fixing plug 52. Electric push rods 51 are installed at the bottoms of the left and right sides of the lifting plate 41. A fixing plug 52 is connected to the telescopic rod of the electric push rod 51. Jacks are provided at the lower parts of the left and right sides of the installation box 2. When the electric push rod 51 extends, it can drive the fixing plug 52 to insert into the jack, thereby clamping the lifting plate 41.

[0032] When the drone needs to be used, this landing device can be used. In the initial state, the telescopic rod of the electric push rod 51 is in the extended state, the fixing plug 52 is inserted into the jack of the installation box 2, and the first elastic member 42, the second elastic member 44, and the third elastic member 47 are all in a compressed state. When in use, the installation box 2 can be placed on the drone body 1. After placing it, the magic tape 3 is tied to the drone body 1, thereby fixing the installation box 2 to the drone body 1. Subsequently, the drone can be flown. When the drone has an out-of-control crash, the telescopic rod of the electric push rod 51 can be controlled to retract, thereby driving the fixing plug 52 to no longer insert into the jack. At this time, under the action of the first elastic member 42, the lifting plate 41 is ejected. After ejection, under the action of the second elastic member 44, the support frame 43 is ejected, so that the support frame 43 is stuck on the installation box 2. At the same time, the third elastic member 47 can unfold the installation rod 46, thereby opening the parachute 49. The parachute 49 can buffer when the drone crashes and falls, avoiding the situation that the drone hits the ground and causes damage to the drone, effectively protecting the drone. In this way, when the drone has a crash phenomenon during use, this landing device can be used to protect the drone, avoiding the situation that the drone crashes and falls on the ground and causes damage to the drone.

[0033] As shown Figure 4 in the figure, a closing mechanism is further included. The closing mechanism includes a cover plate 61, a connecting plate 62, a connecting frame 63, a fourth elastic member 64, a pushing block 65, and a guiding column 66. A cover plate 61 is provided on the top of the installation box 2. Connecting plates 62 are connected to the left and right sides of the cover plate 61. The two connecting plates 62 are respectively located on the two sides of the installation box 2. Connecting frames 63 are connected to the front and rear sides of the left and right side surfaces of the installation box 2. Guiding columns 66 are connected to the front and rear sides of the left and right side surfaces of the cover plate 61. The guiding columns 66 are located inside the connecting frames 63. A pushing block 65 is slidably connected inside the connecting frames 63. The pushing block 65 can slide up and down along the inside of the connecting frames 63. A fourth elastic member 64 is connected between the pushing block 65 and the inner bottom of the connecting frames 63. The fourth elastic member 64 is a return spring. When the cover plate 61 covers the installation box 2, the guiding column 66 presses the pushing block 65, and the fourth elastic member 64 is in a compressed state.

[0034] In the initial state, the electric push rod 51 is in the extended state, and the fixed insertion rod 52 is inserted into the connecting plate 62, thereby fixing the connecting plate 62 and the cover plate 61. The fourth elastic member 64 is in the compressed state. At this time, the inside of the installation box 2 can be covered by the cover plate 61, so as to protect the internal structure of the installation box 2. When the electric push rod 51 controls the fixed insertion rod 52 to retract, the fixed insertion rod 52 is separated from the connecting plate 62. At this time, the fourth elastic member 64 resets and pushes the push block 65 to move upward. When the push block 65 moves upward, it can push out the guide post 66, thereby removing the cover plate 61. In this way, the effect of protecting the internal structure of the installation box 2 can be achieved, and the internal structure of the installation box 2 can be prevented from being damaged.

[0035] As Figure 5 and Figure 6 shown, it further includes a floating mechanism. The floating mechanism includes a guide block 71, a floating plate 72, a guide frame 73, a sliding frame 74, an adjusting screw 75 and a docking plate 76. Guide blocks 71 are connected to both the front and rear sides of the installation box 2. Guide frames 73 are connected to both the front and rear sides of the top of the floating plate 72. A sliding frame 74 is slidably connected inside the guide frame 73. An adjusting screw 75 is threadedly connected to the guide frame 73. The adjusting screw 75 is in threaded cooperation with the sliding frame 74, so that when the adjusting screw 75 rotates, it can drive the sliding frame 74 to move through the thread. A docking plate 76 is connected to the sliding frame 74. The docking plate 76 can be stuck on the guide block 71, so that the docking plate 76 is in contact with the guide block 71.

[0036] After the installation box 2 is installed, the floating plate 72 can be placed under the lower part of the drone body 1. At this time, the two docking plates 76 are respectively aligned with the two guide blocks 71. Subsequently, the adjusting screw 75 can be rotated. When the adjusting screw 75 rotates, it drives the two docking plates 76 to approach each other through the thread. When the two docking plates 76 approach each other, they can be stuck on the guide blocks 71, thereby fixing the floating plate 72 to the drone body 1. Subsequently, when the drone body 1 has a crash situation, such as falling into a lake or a river, it can float through the floating plate 72, so as to facilitate the user to salvage the drone and prevent the drone from sinking into the lake.

[0037] As Figures 7 - 10As shown in the figure, it further includes an expansion mechanism. The expansion mechanism includes a fixed floating block 81, an expansion floating block 82, an extension plate 83, an inner column 84, a sliding plate 85, a positioning column 86, a fifth elastic member 87 and an inner rod 88. The middle of the bottom of the floating plate 72 is connected to the fixed floating block 81. A plurality of inner columns 84 are slidably connected to the fixed floating block 81 at equal intervals in the circumferential direction. A fifth elastic member 87 is connected between the inner column 84 and the fixed floating block 81. The fifth elastic member 87 is a compression spring. The outer side of the inner rod 88 is connected to the expansion floating block 82. The floating plate 72 is slidably connected to the sliding plate 85 at the top. Both the front and rear sides of the sliding plate 85 are connected to the extension plate 83. The upper part of the extension plate 83 extends into the front and rear sides of the cover plate 61. A plurality of positioning columns 86 are connected to the bottom of the sliding plate 85 at equal intervals in the circumferential direction. The middle of the inner column 84 is connected to the inner rod 88. A fixing hole is formed in the inner rod 88. The positioning column 86 can be inserted into the fixing hole to fix the inner rod 88.

[0038] In the initial state, the positioning column 86 is inserted into the inner rod 88, and the fifth elastic member 87 is in a compressed state. When the lifting plate 41 moves upward, it will contact the extension plate 83. After the lifting plate 41 moves upward to contact the extension plate 83, when the lifting plate 41 continues to move upward, it can push the extension plate 83 upward. The upward movement of the extension plate 83 can drive the sliding plate 85 to move upward. When the sliding plate 85 moves upward, it can drive the positioning column 86 to move upward. After the positioning column 86 moves upward, it disengages from the inner rod 88. At this time, under the action of the fifth elastic member 87, the expansion floating block 82 slides outward, thereby expanding the area of the floating structure, so that the entire UAV body 1 can float better to prevent the entire UAV body 1 from sinking into the water.

[0039] As Figure 11 shown in the figure, it further includes a counterweight ball 9. The counterweight ball 9 is arranged on the parachute 49, so that the parachute 49 can move away from the UAV body 1 faster when it pops out, enabling the parachute 49 to deploy faster.

[0040] As Figure 12 shown in the figure, it further includes a friction pad 10. The friction pads 10 are installed on the left and right sides of the bottom of the installation box 2. After the installation box 2 is installed, the friction pads 10 are in contact with the UAV body 1, which can assist in fixing the installation box 2 on the UAV body 1. Through the friction between the friction pads 10 and the UAV body 1, the position of the installation box 2 on the UAV body 1 can be prevented from shifting.

[0041] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An emergency recovery and landing device for a UAV, characterized by: The invention comprises an installation box (2), a Velcro (3), a landing mechanism and a fixing mechanism. Both sides of the bottom of the installation box (2) are connected to the Velcro (3). The installation box (2) can be fixed to a drone body (1) by the Velcro (3). The installation box (2) is provided with a landing mechanism for assisting the drone body (1) to land. The installation box (2) is provided with a fixing mechanism for fixing the landing mechanism in the installation box (2). The landing mechanism comprises a lifting plate (41), an elastic member 1 (42), a support frame (43), an elastic member 2 (44), a cross guide frame (45), a mounting rod (46), an elastic member 3 (47), a connecting rope (48) and a parachute (49). The installation box (2) A lifting plate (41) is slidably connected inside, an elastic member 1 (42) is connected between the lifting plate (41) and the bottom of the installation box (2), support frames (43) are slidably connected to both sides of the lifting plate (41), an elastic member 2 (44) is connected between the support frame (43) and the lifting plate (41), a cross guide frame (45) is connected to the top of the lifting plate (41), mounting rods (46) are slidably connected to the four sides of the cross guide frame (45), an elastic member 3 (47) is connected between the mounting rod (46) and the cross guide frame (45), a connecting rope (48) is connected to the mounting rod (46), and a parachute (49) is connected between the plurality of connecting ropes (48).

2. The unmanned aerial vehicle emergency recovery and landing device according to claim 1 is characterized in that: The fixing mechanism comprises an electric push rod (51) and a fixed plug rod (52). The electric push rod (51) is installed at the bottom of both sides of the lifting plate (41). The fixed plug rod (52) is connected to the telescopic rod of the electric push rod (51). Plug holes are opened at the lower part of both sides of the installation box (2). The extension of the electric push rod (51) can drive the fixed plug rod (52) to be inserted into the plug hole.

3. The unmanned aerial vehicle emergency recovery and landing device according to claim 1 is characterized in that: The installation box (2) further comprises a closing mechanism, the closing mechanism comprising a cover plate (61), a connecting plate (62), a connecting frame (63), a fourth elastic member (64), a push block (65) and a guide column (66); the top of the installation box (2) is provided with a cover plate (61); both sides of the cover plate (61) are connected to connecting plates (62); the connecting plates (62) on both sides are respectively located on both sides of the installation box (2); both sides of the installation box (2) are connected to two connecting frames (63); both sides of the cover plate (61) are connected to two guide columns (66); the guide columns (66) are located in the connecting frame (63); a push block (65) is slidably connected in the connecting frame (63); and a fourth elastic member (64) is connected between the push block (65) and the bottom of the connecting frame (63).

4. The unmanned aerial vehicle emergency recovery and landing device according to claim 3 is characterized by: The invention also comprises a floating mechanism, the floating mechanism comprising a guide block (71), a floating plate (72), a guide frame (73), a sliding frame (74), an adjusting screw (75) and a docking plate (76); both sides of the installation box (2) are connected to the guide blocks (71); both sides of the top of the floating plate (72) are connected to the guide frames (73); the guide frame (73) is slidably connected to the sliding frame (74); the guide frame (73) is threadedly connected to the adjusting screw (75); the adjusting screw (75) is threadedly matched with the sliding frame (74); the sliding frame (74) is connected to the docking plate (76); the docking plate (76) can be clamped on the guide block (71).

5. The unmanned aerial vehicle emergency recovery and landing device according to claim 4 is characterized in that: The invention also comprises an expansion mechanism, the expansion mechanism comprising a fixed floating block (81), an expansion floating block (82), an extension plate (83), an inner column (84), a sliding plate (85), a positioning column (86), an elastic member 5 (87) and an inner rod (88); the middle of the bottom of the floating plate (72) is connected to the fixed floating block (81); a plurality of inner columns (84) are evenly spaced and slidably connected to the fixed floating block (81) along the circumferential direction; an elastic member 5 (87) is connected between the inner column (84) and the fixed floating block (81); the outer side of the inner rod (88) is connected to the expansion floating block (82); the top of the floating plate (72) is slidably connected to the sliding plate (85); both sides of the sliding plate (85) are connected to the extension plates (83); the upper part of the extension plate (83) extends into the front and rear sides of the cover plate (61); the bottom of the sliding plate (85) is evenly spaced and slidably connected to the plurality of positioning columns (86); and the middle of the inner column (84) is connected to the inner rod (88).

6. The unmanned aerial vehicle emergency recovery and landing device according to claim 5 is characterized in that: The inner rod (88) is provided with a fixing hole, and the positioning column (86) can be inserted into the fixing hole to fix the inner rod (88).

7. The UAV emergency recovery and landing device according to claim 1 is characterized by: It also includes a counterweight ball (9), and the parachute (49) is provided with the counterweight ball (9).

8. The unmanned aerial vehicle emergency recovery and landing device according to claim 1 is characterized by: It also includes a friction pad (10), with friction pads (10) being installed on both sides of the bottom of the installation box (2).

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