Unmanned aerial vehicle load throwing device and miniature unmanned aerial vehicle

Abstract

The invention discloses an unmanned aerial vehicle load throwing device and a miniature unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicle equipment.The miniature unmanned aerial vehicle comprises an unmanned aerial vehicle body, a plurality of anti-collision frames are arranged on the outer side of the unmanned aerial vehicle body, and rotor assemblies are installed in the anti-collision frames; a plurality of limiting mechanisms are installed in the unmanned aerial vehicle body, and a protection shell is fixedly connected to the bottom of the unmanned aerial vehicle body. By designing the throwing mechanism, when materials need to be thrown, a second motor is started, and an output shaft rotates to drive a gear to rotate, so that a meshed gear ring is driven to rotate, the gear ring drives a limiting ring to rotate, a plurality of connected connecting rods rotate, the connecting rods drive connected arc-shaped covers to rotate, and the arc-shaped covers rotate at the same time; and opening is achieved, the materials fall downwards from the material storage barrel, the opening gaps of the multiple arc-shaped covers can be adjusted according to the falling number, different requirements are met, and the functionality is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aerial vehicle equipment, and in particular relates to an unmanned aerial vehicle payload abandonment device and a micro unmanned aerial vehicle. Background Art

[0002] Drones, also often referred to as unmanned aerial vehicles, are aircraft that do not require a pilot and rely on remote control or autonomous flight systems to complete flight missions. Drones are widely used in military, commercial, scientific research, entertainment and other fields. Due to their flexibility, efficiency and cost-effectiveness, they have developed rapidly in recent years. However, micro drones refer to unmanned aerial vehicles that are very small and light, usually equipped with sensors, cameras, communication equipment, etc., and are used to perform various tasks. These drones are characterized by being small, flexible, and low-cost, and usually have important advantages in specific application scenarios.

[0003] Most of the existing micro UAVs are of integrated design, with their fuselage and power system being an integrated structure. However, when impacted, the deformation of the fuselage frame will affect the drive rotor, causing the power system to malfunction, which in turn affects the entire UAV, thereby greatly increasing maintenance costs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a drone payload abandonment device and a micro drone.

[0005] The technical solution adopted to solve the above technical problems is: a micro UAV, comprising a UAV body, a plurality of anti-collision frames are arranged on the outer side of the UAV body, and a rotor assembly is installed in each of the plurality of anti-collision frames;

[0006] A plurality of limiting mechanisms are installed inside the drone body, and a protective shell is fixedly connected to the bottom of the drone body.

[0007] Furthermore, a plurality of rectangular grooves are provided on the outer side of the drone body, a card slot is provided at the center of each of the rectangular grooves, a magnet is fixedly connected to the ports of each of the card slots, and a mounting groove is provided at the bottom of each of the card slots.

[0008] Through the above technical solution, the rectangular groove is used to fit with the metal plate and has a limiting effect. The card slot facilitates the insertion of the card strip for the installation of the anti-collision frame. When the metal plate fits with the rectangular groove, the magnet is magnetically attracted to the metal plate to improve the stability of the assembly of the anti-collision frame and the drone body.

[0009] Furthermore, a metal plate is fixedly connected to one side of the outer wall of the anti-collision frame, a clamping strip is fixedly connected to the center of the other side of the metal plate, and a limiting groove is provided at the bottom of the clamping strip.

[0010] Through the above technical solution, when assembling the anti-collision frame, the card strip is inserted into the card slot, and the metal plate is fitted with the rectangular slot, so that the metal plate is magnetically attracted to the magnet to realize the assembly of the anti-collision frame. When the entire drone body is hit during flight, the anti-collision frame provides a certain buffering effect. When the rotor assembly is damaged by impact, the anti-collision frame can be removed separately for repair without disassembling the entire drone body, thereby reducing the cost of use.

[0011] Furthermore, the rotor assembly includes a mounting plate fixedly connected to the bottom of the anti-collision frame, a first motor is fixedly mounted on the top of the mounting plate, and a driving rotor is fixedly connected to the outer wall of the output shaft of the first motor.

[0012] Through the above technical solution, when the drone body is flying, the first motor is started, and the output shaft rotates to drive the drive rotor to rotate. The remaining drive rotors rotate according to the same principle to realize the flight of the drone body.

[0013] Furthermore, the limiting mechanism includes a limiting strip slidably connected to the mounting groove, a plurality of springs are fixedly connected to the bottom of the limiting strip, a connecting plate is fixedly connected to the bottom center of the limiting strip, and a pull cap is fixedly connected to the bottom of the connecting plate.

[0014] Through the above technical scheme, when the card strip is inserted into the card slot, the card strip first squeezes the limit strip. Since the contact surfaces of the two are arc surfaces, the limit strip is squeezed and moves downward, thereby squeezing multiple springs. When the card strip is inserted into the innermost end, the multiple springs drive the limit strip to reset through elastic force, so that the limit strip is inserted into the limit slot, thereby limiting the card strip and fixing the anti-collision frame. When the anti-collision frame needs to be disassembled later, the pull cap is pulled downward, thereby pulling the connecting plate and the limit strip, so that the limit strip is separated from the limit slot, and the anti-collision frame is pulled out to realize the disassembly of the anti-collision frame. The installation and disassembly steps are simple, thereby reducing the maintenance cost of the drone.

[0015] Furthermore, the bottom ends of the plurality of springs are fixedly connected to the bottom end of the mounting groove, and in the assembled state, the limit strip fits into the limit groove.

[0016] Through the above technical solution, the limit strip fits with the limit groove, and the magnet is magnetically attracted to the metal plate. The combined effect of the two greatly improves the connectivity between the anti-collision frame and the drone body.

[0017] A load abandonment device for a micro-UAV comprises an abandonment mechanism, wherein the abandonment mechanism comprises a storage barrel fixedly connected to the bottom of the UAV body, a connecting frame is fixedly connected to the outside of the storage barrel at the bottom of the UAV body near the storage barrel, a plurality of limit pins are fixedly connected to the bottom of the connecting frame, a limit ring is rotatably connected to the bottom of the connecting frame, a plurality of arc grooves are formed on the limit ring, a gear ring is fixedly connected to the outer wall of the limit ring, a plurality of arc covers are rotatably connected to the bottom of the storage barrel, a connecting rod is rotatably connected between the plurality of arc covers and the limit ring, and a second electric Machine, the outer wall of the output shaft of the second motor is fixedly connected with a gear, the material is first placed in the storage barrel, and the multiple arc-shaped covers are closed. When the main body of the drone flies to a certain area and needs to abandon the material, the second motor is started, and the output shaft rotates to drive the gear to rotate, thereby driving the meshing gear ring to rotate, so that the gear ring drives the limit ring to rotate, thereby rotating the multiple connected connecting rods, and the connecting rod drives the connected arc-shaped covers to rotate, and the multiple arc-shaped covers rotate at the same time to open, and the material falls down from the storage barrel. The gaps opened by the multiple arc-shaped covers can be adjusted according to the number of drops to meet different needs, and the functionality is strong.

[0018] Furthermore, the plurality of limit pins are respectively located in corresponding arc grooves, the gear is meshed with the gear ring, and the plurality of arc covers are combined into a circle.

[0019] Through the above technical solution, when the limiting ring rotates, the multiple arc grooves slide with the corresponding limiting pins to provide a certain limiting effect.

[0020] The beneficial effects of the present invention are as follows: (1) The present invention designs an anti-collision frame. When the entire UAV body is hit during flight, the anti-collision frame provides a certain buffering effect. When the rotor assembly is damaged by impact, the anti-collision frame can be removed alone for repair without disassembling the entire UAV body, thereby reducing the cost of use; (2) The present invention further improves the connectivity of the anti-collision frame by designing a limiting mechanism. When the anti-collision frame needs to be disassembled, the pull cap is pulled downward, thereby pulling the connecting plate and the limiting strip, so that the limiting strip is separated from the limiting groove, and the anti-collision frame is pulled out to achieve disassembly of the anti-collision frame. The installation and disassembly steps are simple, thereby reducing the maintenance cost of the UAV. The bottom ends of the multiple springs are connected to the bottom ends of the installation grooves. Fixed connection, in the combined state, the limit strip fits in the limit groove, the limit strip fits in the limit groove, and the magnet and the metal plate are magnetically attracted. Under the joint action of the two, the connectivity between the anti-collision frame and the drone body is greatly improved; (3) The present invention designs a discarding mechanism. When it is necessary to discard materials, the second motor is started, and the output shaft rotates to drive the gear to rotate, thereby driving the meshing gear ring to rotate, so that the gear ring drives the limit ring to rotate, thereby rotating the multiple connected connecting rods, so that the connecting rod drives the connected arc covers to rotate, and the multiple arc covers rotate at the same time to open, and the materials fall down from the storage barrel. The gaps opened by the multiple arc covers can be adjusted according to the number of drops to meet different needs, and the functionality is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall appearance diagram of the present invention;

[0022] Figure 2 is an overall top view of the present invention;

[0023] Figure 3 is an overall bottom view of the present invention;

[0024] Figure 4 It is a schematic diagram of the main structure of the UAV of the present invention;

[0025] Figure 5 It is a schematic diagram of the anti-collision frame structure of the present invention;

[0026] Figure 6 is an overall first cross-sectional view of the present invention;

[0027] Figure 7 is an overall second cross-sectional view of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the abandonment mechanism of the present invention.

[0029] Figure numerals: 1. UAV body; 11. Rectangular groove; 12. Card slot; 13. Magnet; 14. Mounting groove; 2. Anti-collision frame; 21. Metal plate; 22. Card strip; 23. Limiting groove; 3. Rotor assembly; 301. Mounting plate; 302. First motor; 303. Driving rotor; 4. Limiting mechanism; 401. Limiting strip; 402. Spring; 403. Connecting plate; 404. Pull cap; 5. Protective shell; 6. Abandonment mechanism; 601. Storage barrel; 602. Connecting frame; 603. Limiting pin; 604. Limiting ring; 605. Arc groove; 606. Gear ring; 607. Arc cover; 608. Connecting rod; 609. Second motor; 610. Gear. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] like Figure 1-Figure 4 As shown, a micro-UAV of the present embodiment comprises an UAV body 1, a plurality of anti-collision frames 2 are arranged on the outside of the UAV body 1, a plurality of rectangular grooves 11 are opened on the outside of the UAV body 1, a card slot 12 is arranged at the center of the plurality of rectangular grooves 11, a magnet 13 is fixedly connected to the ports of the plurality of card slots 12, a mounting groove 14 is arranged at the bottom of the plurality of card slots 12, the rectangular groove 11 is used to fit with the metal plate 21, and has a limiting effect, the card slot 12 facilitates the insertion of the card strip 22, and is used for the installation of the anti-collision frame 2, when the metal plate 21 fits with the rectangular groove 11, the magnet 13 is magnetically attracted to the metal plate 21, so as to improve the stability of the assembly of the anti-collision frame 2 and the UAV body 1, and the anti-collision frame 2 A metal plate 21 is fixedly connected to one side of the outer wall, and a clip 22 is fixedly connected to the center of the other side of the metal plate 21. A limiting groove 23 is provided at the bottom of the clip 22. When the anti-collision frame 2 is assembled, the clip 22 is inserted into the clip groove 12, and the metal plate 21 fits with the rectangular groove 11, so that the metal plate 21 is magnetically attracted to the magnet 13 to realize the assembly of the anti-collision frame 2. When the entire drone body 1 is hit during flight, the anti-collision frame 2 provides a certain buffering effect. When the rotor assembly 3 is damaged by impact, the anti-collision frame 2 can be disassembled separately for repair without disassembling the entire drone body 1, thereby reducing the use cost. A protective shell 5 is fixedly connected to the bottom of the drone body 1.

[0032] like Figure 1-Figure 3As shown, multiple anti-collision frames 2 are each installed with a rotor assembly 3, and the rotor assembly 3 includes a mounting plate 301 fixedly connected to the bottom of the anti-collision frame 2, a first motor 302 is fixedly installed on the top of the mounting plate 301, and a driving rotor 303 is fixedly connected to the outer wall of the output shaft of the first motor 302. When the UAV body 1 is flying, the first motor 302 is started, and the driving rotor 303 is driven to rotate by rotating the output shaft. The remaining driving rotors 303 rotate according to the same principle to realize the flight of the UAV body 1.

[0033] like Figure 1-Figure 8 As shown, a plurality of limiting mechanisms 4 are installed inside the drone body 1, and the limiting mechanisms 4 include a limiting strip 401 slidably connected to the installation slot 14, a plurality of springs 402 are fixedly connected to the bottom of the limiting strip 401, a connecting plate 403 is fixedly connected to the bottom center of the limiting strip 401, and a pull cap 404 is fixedly connected to the bottom of the connecting plate 403. When the card strip 22 is inserted into the card slot 12, the card strip 22 first squeezes the limiting strip 401. Since both contact surfaces are arc surfaces, the limiting strip 401 is squeezed and moves downward, thereby squeezing the plurality of springs 402. When the card strip 22 is inserted into the innermost end, the plurality of springs 402 drive the limiting strip 401 to reset through elastic force, so that the limiting strip 401 is inserted into the limiting slot 23. , to limit the card strip 22, thereby fixing the anti-collision frame 2. When the anti-collision frame 2 needs to be disassembled later, the pull cap 404 is pulled downward, thereby pulling the connecting plate 403 and the limit strip 401, so that the limit strip 401 is separated from the limit groove 23, and the anti-collision frame 2 is pulled out to realize the disassembly of the anti-collision frame 2. The installation and disassembly steps are simple, thereby reducing the maintenance cost of the drone. The bottom ends of multiple springs 402 are fixedly connected to the bottom ends of the installation grooves 14. In the assembled state, the limit strip 401 fits in the limit groove 23, and the limit strip 401 fits in the limit groove 23. At the same time, the magnet 13 is magnetically attracted to the metal plate 21. Under the joint action of the two, the connectivity between the anti-collision frame 2 and the drone body 1 is greatly improved.

[0034] like Figure 1-Figure 8As shown, a load abandonment device for a micro-UAV includes an abandonment mechanism 6, which includes a storage barrel 601 fixedly connected to the bottom of the UAV body 1, a connecting frame 602 is fixedly connected to the outside of the storage barrel 601 at the bottom of the UAV body 1, a plurality of limit pins 603 are fixedly connected to the bottom of the connecting frame 602, a limit ring 604 is rotatably connected to the bottom of the connecting frame 602, a plurality of arc grooves 605 are opened on the limit ring 604, a gear ring 606 is fixedly connected to the outer wall of the limit ring 604, a plurality of arc covers 607 are rotatably connected to the bottom of the storage barrel 601, a connecting rod 608 is rotatably connected between the plurality of arc covers 607 and the limit ring 604, a second motor 609 is fixedly installed on one side of the bottom of the UAV body 1, a gear 610 is fixedly connected to the outer wall of the output shaft of the second motor 609, a material is first placed in the storage barrel 601, and a plurality of arc covers 607 are rotatably connected to the storage barrel 601. When the drone body 1 flies to a certain area and needs to discard materials, the second motor 609 is started, and the output shaft rotates to drive the gear 610 to rotate, thereby driving the meshing ring gear 606 to rotate, so that the ring gear 606 drives the limit ring 604 to rotate, thereby the multiple connected connecting rods 608 rotate, so that the connecting rod 608 drives the connected arc cover 607 to rotate, and the multiple arc covers 607 rotate at the same time to achieve opening, and the materials fall downward from the storage barrel 601. The gaps opened by the multiple arc covers 607 can be adjusted according to the number of drops to meet different needs. The functionality is strong, and the multiple limit pins 603 are respectively located in the corresponding arc grooves 605, the gear 610 is meshed with the ring gear 606, and the multiple arc covers 607 are combined into a circle. When the limit ring 604 rotates, the multiple arc grooves 605 slide with the corresponding limit pins 603 to provide a certain limiting effect.

[0035] The working principle of this embodiment is as follows: when the drone body 1 is flying, the first motor 302 is started, and the output shaft rotates to drive the drive rotor 303 to rotate. The remaining drive rotors 303 rotate according to the same principle to realize the flight of the drone body 1. When the drone body 1 flies to a certain area and needs to abandon materials, the second motor 609 is started, and the output shaft rotates to drive the gear 610 to rotate, thereby driving the meshing ring gear 606 to rotate, so that the ring gear 606 drives the limit ring 604 to rotate, so that the multiple connected connecting rods 608 rotate, so that the connecting rods 608 drive the connected arc covers 607 to rotate, and the multiple arc covers 607 rotate at the same time to open, and the materials fall downward from the storage barrel 601. The gaps opened by the multiple arc covers 607 can be adjusted according to the number of drops to meet different needs;

[0036] When the drone body 1 is hit during flight, the multiple anti-collision frames 2 provide a certain buffering effect. When the anti-collision frame 2 needs to be disassembled, the pull cap 404 is pulled downward, thereby pulling the connecting plate 403 and the limit strip 401, so that the limit strip 401 is separated from the limit groove 23, and the anti-collision frame 2 is pulled out to achieve the disassembly of the anti-collision frame 2. When the anti-collision frame 2 needs to be installed, the card strip 22 is inserted into the card groove 12, and the metal plate 21 is fitted with the rectangular groove 11, so that the metal plate 21 is magnetically attracted to the magnet 13 to achieve the assembly of the anti-collision frame 2.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A micro drone, comprising a drone body (1), characterized in that: A plurality of anti-collision frames (2) are provided on the outer side of the drone body (1), and a rotor assembly (3) is installed in each of the plurality of anti-collision frames (2); A plurality of limiting mechanisms (4) are installed inside the drone body (1), and a protective shell (5) is fixedly connected to the bottom of the drone body (1).

2. A micro drone according to claim 1, characterized in that: The outer side of the drone body (1) is provided with a plurality of rectangular grooves (11), the centers of the plurality of rectangular grooves (11) are provided with a card slot (12), the ports of the plurality of card slots (12) are fixedly connected with a magnet (13), and the bottoms of the plurality of card slots (12) are provided with a mounting groove (14).

3. A micro drone according to claim 2, characterized in that: A metal plate (21) is fixedly connected to one side of the outer wall of the anti-collision frame (2), a clamping strip (22) is fixedly connected to the center of the other side of the metal plate (21), and a limiting groove (23) is provided at the bottom of the clamping strip (22).

4. A micro drone according to claim 1, characterized in that: The rotor assembly (3) comprises a mounting plate (301) fixedly connected to the bottom of the anti-collision frame (2), a first motor (302) is fixedly mounted on the top of the mounting plate (301), and a driving rotor (303) is fixedly connected to the outer wall of the output shaft of the first motor (302).

5. A micro drone according to claim 3, characterized in that: The limiting mechanism (4) comprises a limiting strip (401) slidably connected to the mounting groove (14); a plurality of springs (402) are fixedly connected to the bottom of the limiting strip (401); a connecting plate (403) is fixedly connected to the center of the bottom of the limiting strip (401); and a pull cap (404) is fixedly connected to the bottom of the connecting plate (403).

6. A micro drone according to claim 5, characterized in that: The bottom ends of the plurality of springs (402) are fixedly connected to the bottom end of the mounting groove (14); in the assembled state, the limiting strip (401) fits into the limiting groove (23).

7. A payload jettisoning device for use in the micro-UAV according to any one of claims 1 to 6, comprising a jettisoning mechanism (6), characterized in that: The jettisoning mechanism (6) comprises a material storage barrel (601) fixedly connected to the bottom of the drone body (1); a connecting frame (602) is fixedly connected to the outside of the material storage barrel (601) at the bottom of the drone body (1); a plurality of limit pins (603) are fixedly connected to the bottom of the connecting frame (602); a limit ring (604) is rotatably connected to the bottom of the connecting frame (602); a plurality of arc grooves (605) are formed on the limit ring (604); a gear ring (606) is fixedly connected to the outer wall of the limit ring (604); a plurality of arc covers (607) are rotatably connected to the bottom of the material storage barrel (601); a connecting rod (608) is rotatably connected between the plurality of arc covers (607) and the limit ring (604); a second motor (609) is fixedly installed on one side of the bottom of the drone body (1); a gear (610) is fixedly connected to the outer wall of the output shaft of the second motor (609).

8. The payload jettisoning device for a micro-UAV according to claim 7, characterized in that: The plurality of limit pins (603) are respectively located in corresponding arc-shaped grooves (605), the gear (610) is meshed with the gear ring (606), and the plurality of arc-shaped covers (607) are combined into a circle.

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