Mother-son type unmanned reconnaissance aircraft

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a mother-son type unmanned reconnaissance aerial vehicle which comprises a mother aerial vehicle, a multi-rotor son aerial vehicle and a controller. The mother aircraft consists of a rack, a main wing, a front wing and a vertical empennage, the front wing is fixed at the front end of the rack, the main wing is fixed at the tail end of the rack, and a cabin is arranged at the middle section of the main wing; the vertical empennage is fixed on the main wing through a connecting rod; a power device is arranged at the front end of the main wing, and the controller and the multi-rotor sub-aircraft are arranged in the cabin; a protective cover is arranged on the periphery of each propeller of the multi-rotor sub-aircraft. The fixed wing type mother aircraft is combined with the multi-rotor sub-aircraft with the protective cover and the three-layer streamline sliding hatch cover, so that global and local rapid reconnaissance capability is provided, and meanwhile, the unmanned aerial vehicle has the advantages of being stable in flight and beneficial to releasing and recycling of the multi-rotor sub-aircraft.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles (UAVs), in particular to a mother-and-child type unmanned reconnaissance aircraft. Background Art

[0002] Currently, drone reconnaissance technology has been widely used in military, commercial, and civilian fields. Considering the characteristics of existing unmanned reconnaissance aircraft, medium- and large-sized fixed-wing drones offer global reconnaissance capabilities, such as a wide field of view and long range, but lack flexibility and localized reconnaissance capabilities. Multi-rotor low-altitude drones offer localized reconnaissance capabilities, such as high flexibility and strong localized reconnaissance capabilities. However, these drones also suffer from short flight range, low single-unit efficiency, and a small search range. Faced with the diverse needs of unmanned reconnaissance operations, a single drone model is unlikely to meet the requirements.

[0003] To this end, Chinese patent CN117382928A discloses a mother-and-child type mountain patrol and search and rescue drone. The drone comprises a large mother multi-rotor drone and multiple smaller daughter multi-rotor drones placed on the mother drone. The mother drone transports the daughter drones to the operating area, where they are then released for low-altitude local reconnaissance and search. This technology combines the long range of medium- to large-sized drones with the flexibility and precision of small drones. However, the mother drone, a multi-rotor drone, suffers from high energy consumption, short flight time, and slow flight speed. Separately, Chinese patent CN107187605B discloses a multifunctional mother-and-child patrol drone for agriculture and forestry, along with a control method. This system employs a clamping device under the wing of a fixed-wing mother drone, which carries the daughter drones. Solar charging is also used to improve flight range. However, this structure exposes the daughter drones under the wings of the mother drone, compromising the mother drone's flight stability. Furthermore, this method of carrying the daughter drones with the clamping device makes it difficult to recover the daughter drones.

[0004] Therefore, there is currently a lack of an unmanned reconnaissance aircraft that is easy to launch and recover the sub-machine, has both global and local rapid reconnaissance capabilities, and has a mother machine with strong flight stability. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a mother-and-child unmanned reconnaissance aircraft to solve the problems in the existing technology that the child aircraft is difficult to launch and recover, it is difficult to have both global and local rapid reconnaissance capabilities, and the mother aircraft has poor flight stability.

[0006] In order to achieve the above content, the present invention provides the following technical solutions:

[0007] A mother-and-child unmanned reconnaissance aircraft comprises a mother aircraft, a multi-rotor daughter aircraft and a controller. The mother aircraft is composed of a frame, a main wing, a front wing and a vertical tail. The front wing is fixed to the front end of the frame and can supplement the lift of the mother aircraft, improve the flight stability of the mother aircraft, and meet the flight requirements of long flight time and high lift-to-drag ratio. The main wing is fixed to the tail end of the frame, and a cabin is provided in the middle section of the main wing; the vertical tail is fixed to the main wing by a connecting rod. A power unit is provided at the front end of the main wing, and the controller and the multi-rotor daughter aircraft are arranged inside the cabin. A protective cover is provided on the periphery of each propeller of the multi-rotor daughter aircraft to prevent the propeller of the multi-rotor daughter aircraft from colliding with the mother aircraft and being damaged during the launch and recovery process.

[0008] Preferably, a support partition is provided in the cabin, dividing the cabin into a storage area for sundries and a parking area for sub-machines. Two slides are provided at the top of the front wall inside the cabin. The upper slide only occupies two-thirds of the width of the front wall on the side closest to the sundries area, while the lower slide occupies the entire width of the front wall. A streamlined three-layer hatch cover is provided on the top of the cabin. The top hatch cover covers the sundries area and is fixed to the cabin wall. The front ends of the middle and bottom hatch covers are respectively embedded in one of the slides, one above and one below, and can slide along the slides. A groove is provided at the rear end of the middle hatch cover, and a rack is provided at the rear end of the bottom hatch cover. A limit step is provided at the right end of the rack, and the limit step can be embedded in the groove and slide. When the limit step slides to the edge of the groove to the left or right, it can drive the middle hatch cover to slide left and right, thereby closing and opening the cabin. The support partition is provided with a hatch cover motor near the rear end of the cabin. The end of the rotating shaft of the hatch cover motor is provided with a gear. The gear is engaged with the rack and can drive the bottom hatch cover to slide left and right through the rack to achieve closing and locking of the cabin.

[0009] Preferably, the bottom hatch cover (503) is provided with a fixing column at each of the front and rear ends of the side away from the sundry area, and an elastic band is installed between the two fixing columns. When the bottom hatch cover slides closed, it drives the elastic band to move, restraining the multi-rotor sub-machine in the sub-machine parking area, thereby preventing the multi-rotor sub-machine from shaking during the flight of the main aircraft. The sundry area is provided with a battery, and the controller is arranged in the sundry area; the controller is electrically connected to the battery, the power device, and the hatch cover motor.

[0010] Preferably, the main wing and the front wing are both S1223 airfoils, which have greater gliding ability and load capacity, and can shorten the take-off distance of the mother aircraft. The mother aircraft and the multi-rotor daughter aircraft are both equipped with cameras to provide reconnaissance capabilities.

[0011] The beneficial effects of the present invention are:

[0012] (1) The mother aircraft is a fixed-wing aircraft with a front wing, which has a faster flight speed and greater load capacity than a multi-rotor type mother aircraft.

[0013] (2) The cabin integrated on the main wing, with a streamlined three-layer hatch that slides open and close, can carry multi-rotor sub-machines and is restrained by elastic bands that move with the bottom hatch. While having both global and local rapid reconnaissance capabilities, it has little impact on the flight status of the mother aircraft during the transportation, deployment and recovery of the multi-rotor sub-machines.

[0014] (3) The protective cover of the multi-rotor aircraft prevents the propellers of the multi-rotor aircraft from colliding with the mother aircraft during the launch and recovery process, which is more conducive to the launch and recovery of the multi-rotor aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a structural diagram of the cabin.

[0017] Figure 3 This is a schematic diagram of the structure after the cabin is opened.

[0018] Figure 4 It is a schematic diagram of the combined structure of the three-layer hatch cover.

[0019] Figure 5 This is a schematic diagram of the cabin's internal structure.

[0020] Figure 6 This is a schematic diagram of a multi-rotor aircraft restrained by elastic bands.

[0021] In the figure, 1. frame, 2. main wing, 3. front wing, 4. power unit, 5. cabin, 501. top hatch, 502. middle hatch, 503. bottom hatch, 504. slide, 505. groove, 506. fixing column, 6. elastic band, 7. supporting partition, 8. rack, 9. gear, 10. battery, 11. multirotor, 12. controller, 13. protective cover. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention will be described in detail with reference to the accompanying drawings. Examples of the embodiments are shown in the accompanying drawings. The same or similar reference numerals throughout the drawings represent the same or similar elements or elements having the same or similar functions. It should be noted that the front and rear ends of the description are referenced to the front and rear ends of the mother aircraft, with the front end being closer to the front wing and the rear end being closer to the vertical tail. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0023] like Figure 1 、 2 As shown in Figure 3, a mother-and-child unmanned reconnaissance aircraft includes a mother aircraft, a multi-rotor daughter aircraft 11 and a controller 12. The mother aircraft consists of a frame 1, a main wing 2, a front wing 3 and a vertical tail. The front wing 3 is fixed to the front end of the frame 1, which can supplement the lift for the mother aircraft and meet the flight requirements of long flight time and high lift-to-drag ratio. The main wing 2 is fixed to the tail end of the frame 1, and a cabin 5 is provided in the middle section of the main wing 2; the vertical tail is fixed to the main wing 2 through a connecting rod. A power unit 4 is provided at the front end of the main wing 2, and the controller 12 and the multi-rotor daughter aircraft 11 are arranged inside the cabin 5. A protective cover 13 is provided on the periphery of each propeller of the multi-rotor daughter aircraft to prevent the propeller of the multi-rotor daughter aircraft from colliding with the mother aircraft and being damaged during the launch and recovery process.

[0024] like Figure 3 、 4 As shown in Figures 5 and 6, a support partition 7 is provided within the cabin 5, dividing the cabin 5 into a storage area for sundries and a parking area for auxiliary aircraft. Two chutes 504 are provided at the top of the front wall of the cabin 5. The upper chute only occupies two-thirds of the width of the front wall on the sundries side, while the lower chute occupies the entire width of the front wall. A streamlined three-layer hatch cover is provided on the top of the cabin 5. The top hatch cover 501 covers the sundries area and is fixed to the wall of the cabin 5. The front ends of the middle hatch cover 502 and the bottom hatch cover 503 are respectively embedded in a chute 504, one above and one below, and can slide along the chute 504. A groove 505 is provided at the rear end of the middle hatch cover 502, and a rack 8 is provided at the rear end of the bottom hatch cover 503. A stop step is provided at the right end of the rack 8, which can slide and fit into the groove 505. When the stop step slides left or right to the edge of the groove 505, it drives the middle hatch cover 502 to slide left or right, closing and opening the cabin 5. A hatch cover motor is installed near the rear end of the cabin 5 on the support partition 7. A gear 9 is mounted on the end of the motor's shaft. This gear 9 meshes with a rack 8, which drives the bottom hatch cover 502 to slide left and right via the rack 8, closing and opening the cabin 5.

[0025] The bottom hatch 503, facing away from the storage area, is equipped with a fixing post 506 at each of its front and rear ends. An elastic band is installed between these two fixing posts 506. When the bottom hatch 503 slides closed, it moves the elastic band 6, restraining the multi-rotor in the parking area and preventing it from swaying during flight. The storage area houses a battery 10, and a controller 12 is also located within the storage area. The controller 12 is electrically connected to the battery 10, the power unit 4, and the hatch motor.

[0026] Both the main wing 2 and the front wing 3 adopt the S1223 airfoil, which has greater gliding ability and load capacity, and can shorten the take-off distance of the mother aircraft; both the mother aircraft and the multi-rotor aircraft 11 are equipped with cameras to provide reconnaissance capabilities. In addition, the mother aircraft and the multi-rotor aircraft 11 can also be installed with other types of sensors according to the needs of reconnaissance operations.

[0027] During operation, the system begins with a mother aircraft carrying a multi-rotor drone 11, which flies to a target area for a comprehensive search and reconnaissance. The hatch motor then drives the lower hatch 503 via the rack 8, sliding it open, opening the cabin 5. The operator, using remote control 12, releases the multi-rotor drone 11 within to conduct a detailed, localized reconnaissance of the target area. While the multi-rotor drone 11 conducts reconnaissance, the mother aircraft closes the cabin 5 and hovers over the target area, acting as a signal relay for the multi-rotor drone 11. A multi-rotor drone 11, running low on energy or having completed its reconnaissance mission, returns to the parking box 13 within the cabin 5, and the hatch motor closes the cabin.

Claims

1. A mother-and-child unmanned reconnaissance aircraft, characterized by: The invention comprises a mother machine, a multi-rotor daughter machine (11) and a controller (12); the mother machine is composed of a frame (1), a main wing (2), a front wing (3) and a vertical tail, the front wing (3) is fixed to the front end of the frame (1), the main wing (2) is fixed to the rear end of the frame (1), and a cabin (5) is provided in the middle section of the main wing (2); the vertical tail is fixed to the main wing (2) through a connecting rod; a power device (4) is provided at the front end of the main wing (2), the controller (12) and the multi-rotor daughter machine (11) are arranged inside the cabin (5), and each propeller of the multi-rotor daughter machine is provided with a protective cover (13) on the periphery.

2. The mother-and-child unmanned reconnaissance aircraft according to claim 1, characterized in that: The cabin (5) is provided with a supporting partition (7) to separate the cabin (5) into a sundries area and a sub-machine parking area; two chutes (504) are provided on the top of the front end wall inside the cabin (5), the upper chutes only occupy two-thirds of the width of the front end wall on the side close to the sundries area, and the lower chutes occupy the entire width of the front end wall; the top of the cabin (5) is provided with a streamlined three-layer hatch cover, the top hatch cover (501) covers the sundries area and is fixed to the wall of the cabin (5), the middle hatch cover (502) and the bottom hatch cover (503) are fixed to the wall of the cabin (5), and the middle hatch cover (503) and the bottom hatch cover (504) are fixed to the wall of the cabin (5). The front ends of the upper and lower layers of the hatch cover (503) are respectively embedded in a slide groove (504); the rear end of the middle layer hatch cover (502) is provided with a groove (505); the rear end of the bottom layer hatch cover (503) is provided with a rack (8); the right end of the rack (8) is provided with a limiting step, and the limiting step can be embedded in the groove (505) and slide; the support partition (7) is provided with a hatch cover motor near the rear end of the cabin (5); the end of the rotating shaft of the hatch cover motor is provided with a gear (9), and the gear (9) is engaged with the rack (8).

3. The mother-and-child unmanned reconnaissance aircraft according to claim 2, characterized in that: The bottom hatch cover (503) is provided with a fixing column (506) at the front and rear ends of the side away from the sundry area, and an elastic band (6) is installed between the two fixing columns (506); a battery (10) is placed in the sundry area, and the controller (12) is arranged in the sundry area; the controller (12) is electrically connected to the battery (10), the power device (4), and the hatch cover motor.

4. The mother-and-child unmanned reconnaissance aircraft according to claim 1, characterized in that: The main wing (2) and the front wing (3) both adopt S1223 airfoil.

5. The mother-and-child unmanned reconnaissance aircraft according to claim 1, characterized in that: The mother machine and the multi-rotor sub-machine (11) are both provided with cameras.

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