Anti-falling and anti-collision plant protection unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, and discloses an anti-falling and anti-collision plant protection unmanned aerial vehicle which comprises an aerial vehicle body, flying fan blades are arranged at the four corners of the outer portion of the aerial vehicle body, two supporting legs are fixedly connected to the bottom end of the aerial vehicle body, and supporting rods are slidably connected to the front sides and the rear sides of the bottom ends of the supporting legs. The top ends of the supporting rods are fixedly connected with limiting blocks, the supporting rods are sleeved with springs, the bottom ends of the two supporting rods are fixedly connected with sliding plates, the outer portions of the front sides and the rear sides of the supporting legs are fixedly connected with connecting blocks, and the middles of the connecting blocks are rotationally connected with first rotating rods. According to the unmanned aerial vehicle, the extra buffering effect can be provided when the unmanned aerial vehicle collides or accidentally falls, impact on the vehicle body and components is effectively reduced, and in addition, it is guaranteed that the pesticide barrel is more stable in the flying or landing process while the pesticide barrel is rapidly mounted and dismounted.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned aerial vehicle technical field especially relates to a kind of anti-drop anti-collision plant protection unmanned aerial vehicle. BACKGROUND

[0002] In the agricultural field, plant protection unmanned aerial vehicle has the advantages of high efficiency and precision, especially unmanned aerial vehicle pesticide, not only can improve efficiency, but also can improve farmland output. Unmanned aerial vehicle uses high-concentration pesticide and airborne high-efficiency spraying atomization technology, pesticide liquid atomization is sufficient, using the strong downward airflow generated by unmanned aerial vehicle rotation to directly penetrate the various layers of crops, more uniform than artificial pesticide, better insecticidal effect.

[0003] In the current agricultural field, plant protection unmanned aerial vehicle is widely used due to its efficient operation capacity, and plant protection unmanned aerial vehicle realizes intelligent control, and existing unmanned aerial vehicle generally has intelligent control function, and can realize autonomous flight through ground remote controller and GPS positioning system.

[0004] Part of existing plant protection unmanned aerial vehicle when farmland operation, since its flight height is usually only 1-5 meters, more prone to various obstacles, which greatly increases the risk of accidents. In the process of flight, if collision or operation error occurs, accident is easily caused, especially rotor and high-pressure nozzle and other components are easily damaged, and serious damage may even cause unmanned aerial vehicle to be completely damaged, which is commonly known as "explosion" phenomenon, in addition, existing plant protection unmanned aerial vehicle lacks placement platform for different size atomization pesticide, resulting in poor practicability. In actual operation, different pesticides need different size containers for loading, and existing plant protection unmanned aerial vehicle cannot meet this demand, which brings inconvenience to farmers and plant protection operators, for this, aiming at the above problems, a kind of anti-drop anti-collision plant protection unmanned aerial vehicle is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a kind of anti-drop anti-collision plant protection unmanned aerial vehicle, aims at improving the problem that plant protection unmanned aerial vehicle in existing technology is prone to accident in farmland operation and lacks placement platform for different size atomization pesticide.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides an anti -fall crash's plant protection unmanned plane, including aircraft body, the outside four corners of aircraft body are provided with flight fan blade, the bottom of aircraft body is fixedly connected with two support legs, the bottom of support leg's front and back sides is slidably connected with support rod, the top of support rod is fixedly connected with limit block, the outside of support rod is equipped with spring, the bottom of two support rods is fixedly connected with slide, the front and back sides of support leg's outside is fixedly connected with connecting block, the middle part of connecting block is rotatably connected with rotation bar no.

[0008] As a further description of the above technical solutions:

[0009] The fixed assembly includes a placing barrel, the top of the placing barrel is fixedly connected to the middle part of the support plate, the inner wall of the middle part of the placing barrel is slidably connected with an inner barrel, the outer part of the inner barrel is fixedly connected with a plurality of tooth blocks, the top of the support plate is rotatably connected with three connecting shafts, the outer part of the connecting shafts is fixedly connected with clamping blocks, the middle part of the connecting shafts is fixedly connected with central shafts, the front side of the placing barrel is fixedly connected with a protective cover, the middle part of the protective cover is rotatably connected with a torsion bar, the outer part of the top of the torsion bar is fixedly connected with a gear.

[0010] As a further description of the above technical solutions:

[0011] The top of the flight fan blade is detachably connected with a protective ring cover, the outer part of the limit block is slidably connected to the inner wall of the bottom of the support leg, the top of the two rotation bars no.

[0012] As a further description of the above technical solutions:

[0013] The top of the spring is fixedly connected to the bottom of the limit block, the bottom of the spring is fixedly connected to the inner wall of the bottom of the support leg.

[0014] As a further description of the above technical solutions:

[0015] The outer part of the top of the bidirectional torsion spring is arranged on the inner wall of the bottom of the rotation bar no.

[0016] As a further description of the above technical solutions:

[0017] The inner part of the placing barrel is provided with a ring groove, the outer part of the tooth block is slidably connected to the inner wall of the ring groove.

[0018] As a further description of the above technical solution:

[0019] The bottom end of the gear is movably connected to the inner wall of the protective cover, and the outer teeth of the gear are engaged with the outer portion of the tooth block;

[0020] As a further description of the above technical solution:

[0021] The bottom ends of the three central shafts are rotatably connected to the top end of the inner barrel, and the bottom end of the clamping block is rotatably connected to the top end of the placement barrel.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the present invention, external impact causes the slide plate to squeeze the support rod to stretch the spring, and then the second and first rotating rods, driven by the support rods, squeeze and bend the bidirectional torsion spring, so that the spring and the bidirectional torsion spring absorb the impact force, thereby providing additional cushioning when the drone collides or falls accidentally, effectively reducing the impact on the body and components, thereby reducing the risk of damage and improving the durability and reliability of the drone.

[0024] 2. In the present invention, the medicine barrel is placed in the inner barrel, and the torsion bar is twisted to drive the gear to engage the inner barrel to rotate, so that the inner barrel drives the clamping block to rotate in the center through the central axis to clamp the placed medicine barrel, thereby achieving rapid installation and removal of the medicine barrel while ensuring that the medicine barrel is more stable during flight or landing, reducing the risk of drug liquid leakage or damage to the medicine barrel due to shaking or collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a fall-resistant and collision-resistant plant protection drone proposed in the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the support legs of a plant protection drone that is resistant to falling and collisions proposed in the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a bidirectional torsion spring for a plant protection drone that is resistant to falling and collisions proposed in the utility model;

[0028] Figure 4 This is a structural schematic diagram of the tooth block of a plant protection drone that is resistant to falling and collision proposed by the utility model.

[0029] Legend:

[0030] 1. Aircraft body; 2. Flight blades; 3. Protective ring cover; 4. Support legs; 5. Support rod; 6. Limit block; 7. Spring; 8. Support plate; 9. Connecting block; 10. Turning rod 1; 11. Connecting shaft; 12. Bidirectional torsion spring; 13. Connecting roller; 14. Turning rod 2; 15. Support plate; 16. Placement barrel; 17. Ring groove; 18. Inner barrel; 19. Tooth block; 20. Connecting shaft; 21. Clamp block; 22. Center shaft; 23. Protective cover; 24. Torsion bar; 25. Gear. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figures 1 to 3 The utility model provides an embodiment: a fall-resistant and collision-resistant plant protection UAV, comprising an aircraft body 1. The aircraft body 1 is the main part of the UAV, carrying various electronic components and equipment, and providing power and control for the flight of the UAV. The aircraft body 1 can be electrically connected to an external device, and the aircraft body 1 can be started and shut down by an external controller. Flight blades 2 are provided at the four external corners of the aircraft body 1. The flight blades 2 generate lift by rotation, enabling the UAV to fly. A protective ring cover 3 is detachably connected to the outside of the top of the flight blade 2. The protective ring cover 3 is arc-shaped and surrounds and protects the flight blade 2 to prevent collision or damage during flight.

[0033] The bottom end of the aircraft body 1 is fixedly connected to two support legs 4. The support legs 4 are U-shaped, and a cavity is provided inside the bottom connecting section to provide support for the UAV. The front and rear sides of the bottom end of the support legs 4 are both slidably connected to support rods 5. When the UAV lands or falls, the support rods 5 are subjected to force and slide in the front and rear inner cavities of the bottom ends of the support legs 4. The top ends of the support rods 5 are fixedly connected to limit blocks 6, and the outside of the limit blocks 6 is slidably connected to the inner wall of the bottom end of the support legs 4. The limit blocks 6 are used to limit the sliding range of the support rods 5. The outside of the support rods 5 is provided with a spring 7, and the top end of the spring 7 is fixedly connected to the bottom end of the limit blocks 6, and the bottom end of the spring 7 is fixedly connected to the inner wall of the bottom end of the support legs 4. When the support rods 5 slide, the springs 7 are squeezed or stretched in the inner cavities of the limit blocks 6 and the support legs 4, acting as a buffer.

[0034] refer to Figure 2 、 Figure 3The bottom end of the two support rods 5 is fixedly connected with a sliding plate 8, which first contacts the ground and bears the impact force when the unmanned aerial vehicle lands. The front and rear sides of the support leg 4 are fixedly connected with a connecting block 9, which is fixed to the middle part of the two rod legs at the bottom end of the support leg 4 by a clamp. The middle part of the connecting block 9 is rotatably connected with a rotating rod 10, and the bottom end of the rotating rod 10 is provided with a cavity. The middle part of the bottom end of the rotating rod 10 is rotatably connected with a connecting shaft 11, and the connecting shaft 11 connects the rotating rod 10 and a rotating rod 14.

[0035] The outer part of the connecting shaft 11 is sleeved with a bidirectional torsional spring 12, the bottom end of the bidirectional torsional spring 12 is sleeved on the outer part of a connecting roller 13, the top end of the bidirectional torsional spring 12 is provided on the inner wall of the bottom end of the rotating rod 10, and the bottom end of the bidirectional torsional spring 12 is sleeved on the outer part of the connecting roller 13. The top end of the bidirectional torsional spring 12 is in the bottom end cavity of the rotating rod 10, and the rotating rod 10 and the rotating rod 14 are connected at a fixed angle. The outer part of the connecting shaft 11 is fixedly connected with the rotating rod 14 on the front and rear sides, and the rotating rod 14 connects the bottom end of the support rod 5 and the rotating rod 10. The top end of the two rotating rods 14 is fixedly connected with the connecting roller 13, which is beside the connecting shaft 11, and is used to limit the position of the protruding round rod at the top end of the bidirectional torsional spring 12. The middle part of the side close to the two support legs 4 is fixedly connected with a support plate 15, and the support plate 15 connects the two support legs 4 to provide a mounting position for the fixing assembly.

[0036] Reference Figure 2 、 Figure 4 The middle part of the support plate 15 is provided with a fixing assembly for placing objects. The fixing assembly comprises a placing barrel 16, and the top end of the placing barrel 16 is fixedly connected to the middle part of the support plate 15. The placing barrel 16 has a circular barrel structure and is used to assist in placing medicine barrels and other objects. The inner part of the placing barrel 16 is provided with a ring groove 17, and the ring groove 17 is arranged in the inner part of the placing barrel 16 to allow a tooth block 19 on the outer part of an inner barrel 18 to slide.

[0037] The inner part of the middle wall of the placing barrel 16 is slidably connected with the inner barrel 18, and the outer part of the inner barrel 18 is fixedly connected with a plurality of tooth blocks 19. The inner barrel 18 is rotated in place in the placing barrel 16 by the rotation of a gear 25, and drives a clamping block 21 to clamp a medicine barrel. The outer part of the tooth block 19 is slidably connected to the inner wall of the ring groove 17, and the tooth block 19 is engaged with the external teeth of the gear 25, so that the inner barrel 18 is rotated under the drive of the gear 25. The top end of the support plate 15 is rotatably connected with three connecting shafts 20, and the connecting shafts 20 are located at equidistant positions on the outer edge of the top end of the support plate 15 and rotate with the clamping block 21.

[0038] A clamping block 21 is fixedly attached to the exterior of the connecting shaft 20. This block 21 is in the shape of a triangular rod with a protruding fixed round rod at its tip. The bottom end of the clamping block 21 is pivotally connected to the top of the storage bucket 16, and the clamping block 21 rotates centrally along the top of the storage bucket 16. A central shaft 22 is fixedly attached to the center of the clamping block 21. The bottom ends of three central shafts 22 are pivotally connected to the top of the inner bucket 18, and the central shafts 22 are fixed to the top of the inner bucket 18 at equal distances.

[0039] A protective cover 23 is fixedly connected to the front side of the storage barrel 16. A torsion bar 24 is rotatably connected to the middle of the protective cover 23. A gear 25 is fixedly connected to the top and outside of the torsion bar 24. Rotating the torsion bar 24 drives the gear 25 to rotate, thereby controlling the rotation of the inner barrel 18 and clamping and releasing the medicine barrel. The bottom end of the gear 25 is movably connected to the inner wall of the protective cover 23. When the gear 25 rotates, the bottom surface contacts the inner wall of the protective cover 23, and the protective cover 23 provides protection for the gear 25. The external teeth of the gear 25 engage with the outer portion of the tooth block 19. The gear 25 rotates by rotating the torsion bar 24, causing the inner barrel 18 to rotate within the storage barrel 16, driving the clamping block 21 to clamp the medicine barrel.

[0040] Working principle: When the UAV lands vertically, or is damaged and falls vertically in the air, the slide plate 8 first touches the ground. Due to the weight of the UAV itself or the recoil force caused by the fall, the bottom end of the support rod 5 connected to the slide plate 8 is impacted. The support rod 5 is forced to slide upward in the front and rear inner cavities of the bottom end of the supporting leg 4. At the same time, it pulls the spring 7 to deform synchronously and slide toward the top. At the same time, the bottom end of the support rod 5 is connected to the rotating rod 2 14 through the bidirectional torsion spring 12, and then the upward rotation of the support rod 5 and the rotating rod 10 are folded. The bidirectional torsion spring 1 defined in the middle of the bottom rotating rod 10 and the rotating rod 2 14 2 is squeezed and bent, and the spring 7 is squeezed and stretched between the limit block 6 and the inner cavity at the bottom end of the support leg 4, and the elastic force of the bidirectional torsion spring 12 is cooperated with the elastic force of the bidirectional torsion spring 12 to bend and reset between the rotating rod 10 and the connecting roller 13, thereby maximizing the buffering, allowing the support rod 5 and the bottom end of the rotating rod 2 14 to push the support rod 5 downward to drive the slide plate 8 fixed by the support rod 5 to reset, avoiding the recoil force from passing through the support rod 5 upward along the connection of the support leg 4 and directly causing the vibration of the aircraft body 1, and achieving the vertical buffering of the impact force of the slide plate 8 in contact, so as to protect the electronic components inside the aircraft body 1.

[0041] A support rod 5 is fixed between the support legs 4, and a medicine barrel can be placed in the middle of the support rod 5 for fixing. By placing the medicine barrel in the inner barrel 18, and then twisting the torsion bar 24 to drive the outer teeth of the gear 25 to engage the inner barrel 18, the inner barrel 18 is driven by the teeth of the gear 25 to rotate in place in the middle of the placement barrel 16. At this time, when the placement barrel 16 rotates, the central axis 22 at the top of the placement barrel 16 will drive the fixed clamping block 21 to rotate toward the center of the placement barrel 16, thereby realizing rapid clamping of the placed medicine barrel, making the installation and disassembly of the medicine barrel easier and faster.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plant protection drone that is resistant to falling and collision, comprising an aircraft body (1), characterized in that: The four corners of the aircraft body (1) are each provided with a flying blade (2). The bottom end of the aircraft body (1) is fixedly connected to two supporting legs (4). The front and rear sides of the bottom ends of the supporting legs (4) are both slidably connected to support rods (5). The top end of the support rod (5) is fixedly connected to a limiting block (6). The outside of the support rod (5) is provided with a spring (7). The bottom ends of the two support rods (5) are fixedly connected to a slide plate (8). The front and rear sides of the supporting legs (4) are both fixedly connected to a connecting block (9). The connecting block The middle part of (9) is rotatably connected to a rotating rod 1 (10), the middle part of the bottom end of the rotating rod 1 (10) is rotatably connected to a connecting shaft (11), the outer part of the connecting shaft (11) is provided with a bidirectional torsion spring (12), the outer front and rear sides of the connecting shaft (11) are fixedly connected to a rotating rod 2 (14), the top ends of the two rotating rods 2 (14) are fixedly connected to a connecting roller (13), the middle part of the adjacent side of the two support legs (4) is fixedly connected to a support plate (15), and the middle part of the support plate (15) is provided with a fixed component for placing objects.

2. The anti-fall and anti-collision plant protection drone according to claim 1, characterized in that: The fixing assembly includes a placement barrel (16), the top end of the placement barrel (16) is fixedly connected to the middle of the support plate (15), the inner wall of the middle of the placement barrel (16) is slidably connected to an inner barrel (18), the outer portion of the inner barrel (18) is fixedly connected to a plurality of tooth blocks (19), the top end of the support plate (15) is rotatably connected to three connecting shafts (20), the outer portion of the connecting shaft (20) is fixedly connected to a clamping block (21), the middle portion of the clamping block (21) is fixedly connected to a central shaft (22), the front side of the placement barrel (16) is fixedly connected to a protective cover (23), the middle portion of the protective cover (23) is rotatably connected to a torsion bar (24), and the top end of the torsion bar (24) is fixedly connected to a gear (25).

3. The anti-fall and anti-collision plant protection drone according to claim 1, characterized in that: The top end of the flying fan blade (2) is detachably connected to a protective ring cover (3), and the outside of the limiting block (6) is slidably connected to the inner wall of the bottom end of the supporting leg (4).

4. The anti-fall and anti-collision plant protection drone according to claim 1, characterized in that: The top end of the spring (7) is fixedly connected to the bottom end of the limit block (6), and the bottom end of the spring (7) is fixedly connected to the inner wall of the bottom end of the support leg (4).

5. The anti-fall and anti-collision plant protection drone according to claim 1, characterized in that: The top end of the bidirectional torsion spring (12) is arranged on the inner wall of the bottom end of the rotating rod (10), and the bottom end of the bidirectional torsion spring (12) is sleeved on the outside of the connecting roller (13). The top ends of the two rotating rods (14) are rotatably connected to the middle of the bottom end of the support rod (5).

6. The anti-fall and anti-collision plant protection drone according to claim 2, characterized in that: An annular groove (17) is provided in the middle of the interior of the placement barrel (16), and the exterior of the tooth block (19) is slidably connected to the inner wall of the annular groove (17).

7. The anti-fall and anti-collision plant protection drone according to claim 2, characterized in that: The bottom end of the gear (25) is movably connected to the inner wall of the protective cover (23), and the external teeth of the gear (25) are engaged with the outside of the tooth block (19).

8. The anti-fall and anti-collision plant protection drone according to claim 2, characterized in that: The bottom ends of the three central shafts (22) are rotatably connected to the top end of the inner barrel (18), and the bottom end of the clamping block (21) is rotatably connected to the top end of the placement barrel (16).

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