Plant protection spraying unmanned aerial vehicle

Abstract

The invention relates to the technical field of plant protection unmanned aerial vehicles, in particular to a plant protection spraying unmanned aerial vehicle which comprises a pesticide box, a through groove is formed in the position, close to a liquid inlet, of the pesticide box, a connecting ring is arranged at the position, located on the edge of the through groove, of the pesticide box, and a cover plate is detachably connected to the end, away from the pesticide box, of the connecting ring. A sealing ring used in cooperation with the connecting ring is arranged in the cover plate, a through hole is formed in the cover plate, an air bag unit is arranged in the connecting ring, an air pump is arranged on the medicine box and communicates with the air bag unit through an air pipe, the air bag unit comprises a plurality of air bag bubbles communicating with one another, and a containing mechanism is arranged outside each air bag bubble. According to the plant protection unmanned aerial vehicle, in order to reduce potential safety hazards of the unmanned aerial vehicle caused by surge of the pesticide box during operation of the plant protection unmanned aerial vehicle, the plant protection unmanned aerial vehicle has good application in plant protection unmanned aerial vehicle manufacturers.

Description

Technical Field

[0001] The invention belongs to the technical field of plant protection UAVs, and in particular relates to a plant protection spraying UAV. Background Art

[0002] Plant protection drones are playing an increasingly important role in modern agricultural production. Compared with traditional spraying methods, plant protection drones have significant advantages: plant protection drones can quickly complete the spraying task in the operation area, greatly improving work efficiency; drones spray in the air, which can achieve uniform distribution of spray and reduce ineffective spraying and excessive use of fertilizers and pesticides.

[0003] A Chinese patent with application number 2022220444255 discloses an anti-surge medicine box for a plant protection drone, which has a filling port on the top and an external leakage port on the bottom, and includes a wide diameter section and a narrow diameter section from top to bottom: the wide diameter section and the narrow diameter section are internally connected, and a limited step is provided at the combined position: a wave-breaking plate is provided inside the wide diameter section and the narrow diameter section, and the wave-breaking plate divides the interior of the medicine box into several groups of hexagonal columnar spaces; flow holes are evenly provided on the surface of the wave-breaking plate, and the heights of the flow holes on the two side walls in the same hexagonal columnar space are inconsistent. The anti-surge medicine box for a plant protection drone reduces the impact of the liquid surge inside the medicine box on the drone by adding a wave-breaking plate inside, thereby improving the control performance of the drone.

[0004] With respect to the above-mentioned related technologies, the inventors found the following defects: the above-mentioned patent is to set a wave-breaking board in the medicine box, and the wave-breaking board has a complex structure and not only occupies the space of the medicine box, but is also inconvenient to clean. Summary of the invention

[0005] In order to reduce the potential safety hazard to the plant protection UAV caused by surge in the medicine box during operation, the present invention provides a plant protection spray UAV.

[0006] The technical solution is that the plant protection spray drone includes a medicine box, a through groove is provided at a position of the medicine box near the liquid inlet, a connecting ring is provided at a position at the edge of the through groove on the medicine box, a cover plate is detachably connected to the end of the connecting ring away from the medicine box, a sealing ring used in conjunction with the connecting ring is provided in the cover plate, a through hole is provided on the cover plate, an airbag unit is provided in the connecting ring, an air pump is provided on the medicine box, the air pump is connected to the airbag unit through an air pipe, a pressure switch is provided on the air pump to prevent the airbag unit from affecting the normal spraying of the liquid medicine after being inflated, so as to form a structure in which the airbag unit is inflated to fill the empty space of the medicine box under the action of the air pump after the liquid medicine in the medicine box is used, the airbag unit includes a plurality of air bags that are interconnected, a storage mechanism is provided on the outside of each air bag, a spring pull rope mechanism is provided on the cover plate, the rope of the spring pull rope mechanism is connected to the storage mechanism, so as to form a structure in which the air bag relies on the storage mechanism and the spring pull rope mechanism to store the air bag when it is not inflated.

[0007] Preferably, the air cells are arranged in sequence along the vertical direction, and the air cells are in a hollow "lantern"-shaped structure. The inner walls of both ends of the air cells are provided with connecting rings, and the outer walls of both ends of the air cells are provided with elastic nets extending to the storage mechanism.

[0008] Preferably, the storage mechanism includes a connecting plate fixed to the side of the air bag bubble, there are multiple connecting plates and adjacent connecting plates are connected by elastic ropes, there are multiple elastic ropes and they are arranged at intervals along the width direction of the connecting plate, and placement grooves for placing the elastic ropes are provided at both ends of the connecting plate.

[0009] Preferably, each edge of the connecting plate is provided with a slot, and a magnet is provided in the slot, forming a structure that relies on the magnet on the edge of the connecting plate to quickly position the air bag when the air bag is stored. A limiting ring for the rope of the clockwork pull rope mechanism to pass through is provided on the side of the connecting plate away from the air bag.

[0010] Preferably, a sealing gasket is provided on the airbag bubble at one end of the airbag unit away from the cover plate, and an elastic band is provided on the sealing gasket. There are multiple elastic bands and they are arranged in an array. The elastic band includes two cross-arranged elastic strips. A rubber sheet is provided on the sealing gasket. The end of the elastic strip is glued to the center position of the rubber sheet, and the two elastic strips are arranged in an "X" shape.

[0011] Preferably, an air seat connected to the air bladder is provided on the cover plate, the air seat is connected to the air pump through an air pipe, and the air seat has a hollow structure.

[0012] The beneficial effects of the present invention are that a connecting ring and a cover plate are arranged on the medicine box, an airbag unit is arranged inside the connecting ring and the cover plate, and an air pump for inflation is arranged outside the medicine box, and the airbag unit is inflated to fill the empty space of the medicine box through a pressure switch and an air pipe, thereby reducing the surge of medicine liquid when the drone turns and adjusts the altitude; A plurality of lantern-shaped air bags are provided, and an elastic net is provided at the end cover of the air bag. A connecting plate is provided on the outer wall of each air bag, and adjacent connecting plates are connected by elastic ropes, so as to accelerate the contraction speed in the horizontal direction when the air bag is not inflated. The connection ring, the elastic net and the connecting plate are provided to prevent the air bag from irregularly deforming when it is contracted. The rope of the clockwork rope pulling mechanism passes through the upper limit ring of the connecting plate in sequence and is connected to the connecting plate near the bottom of the medicine box. With the cooperation of the connecting plate magnet, the airbag unit is guided to be stored in the connecting ring position in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of the medicine box of the plant protection spray drone of the present invention; Figure 2 It is an enlarged view of the structure diagram of the medicine box of the plant protection spray drone of the present invention at A; Figure 3This is a front view of the air bladder of the medicine box of the plant protection spray drone of the present invention; Figure 4 This is an enlarged view of the main view B of the air bladder bubble of the plant protection spray drone of the present invention; Figure 5 It is a structural diagram of the plant protection spray drone medicine box of the present invention when it is in use.

[0014] Among them, 1 is a medicine box, 2 is a through groove, 3 is a connecting ring, 4 is a cover plate, 5 is a through hole, 6 is an air pump, 7 is an air bag bubble, 8 is a spring pull rope mechanism, 9 is a rope, 10 is an elastic net, 11 is a connecting plate, 12 is an elastic rope, 13 is a placement groove, 14 is a card slot, 15 is a magnet, 16 is a limit ring, 17 is a sealing gasket, 18 is an elastic strip, 19 is a rubber sheet, 20 is an air seat, 21 is an air pipe, and 22 is a connecting ring. DETAILED DESCRIPTION

[0015] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0016] Embodiment 1: As shown in the drawings of the specification, a plant protection spray drone includes a medicine box 1, and a through groove 2 is provided near the liquid inlet of the medicine box 1, and the through groove 2 is located on the center line of the medicine box 1. A connecting ring 3 is provided at the edge of the through groove 2 on the medicine box 1, and the connecting ring 3 is an annular structure, and the connecting ring 3 and the medicine box 1 are an integral structure. A cover plate 4 is detachably connected to the end of the connecting ring 3 away from the medicine box 1, and a sealing ring used in conjunction with the connecting ring 3 is glued inside the cover plate 4, and a through hole 5 is provided in the middle position of the cover plate 4 in the thickness direction thereof. An airbag unit is provided in the connecting ring 3, and an air pump 6 is fixed to the medicine box 1 by bolts, and the air pump 6 is electrically connected to the internal power supply of the drone through the drone control system. The air pump 6 is connected to the airbag unit through the air pipe 21, and the air pump 6 is provided with a pressure switch to prevent the airbag unit from affecting the normal spraying of the liquid medicine after being inflated. The air pump 6 belongs to the prior art. An air seat 20 connected to the airbag unit is glued to the cover plate 4. The air seat 20 is a hollow structure and belongs to the prior art. The air seat 20 is connected to the air pump 6 through the air pipe 21. The through hole 5 is used for the air pipe 21 to pass through, forming a structure in which the airbag unit is inflated to fill the empty space of the medicine box 1 under the action of the air pump 6 after the liquid medicine in the medicine box 1 is used. A storage mechanism for the airbag unit to retract after inflation is provided on the outside. A spring pull rope mechanism 8 is screwed to the cover plate 4. The spring pull rope mechanism 8 belongs to the prior art. The rope 9 of the spring pull rope mechanism 8 is connected to the storage mechanism, forming a structure in which the airbag 7 is stored by the storage mechanism and the spring pull rope mechanism 8 when it is not inflated.

[0017] The airbag unit includes a plurality of interconnected airbags 7, each of which is arranged in sequence along the vertical direction. The airbags 7 are hollow "lantern"-shaped structures, and the inner walls of both ends of the airbags 7 are glued with connecting rings 22, and the connecting rings 22 are made of rubber. The outer walls of both ends of the airbags 7 are provided with elastic nets 10 extending to the storage mechanism, and one end of the elastic net 10 is glued with the connecting ring 3, and the elastic net 10 is annular.

[0018] Storage mechanism: including a connecting plate 11 fixed to the side of the air bag 7, the end of the elastic net 10 away from the connecting ring 22 is glued to the connecting plate 11, there are multiple connecting plates 11 and adjacent connecting plates 11 are connected by elastic ropes 12. There are multiple elastic ropes 12 and they are arranged at intervals along the width direction of the connecting plate 11. The two ends of the connecting plate 11 are provided with placement grooves 13 for placing the elastic ropes 12, and the elastic ropes 12 are hinged to the connecting plate 11 through a connecting cap. Each edge of the connecting plate 11 is provided with a card slot 14, and a magnet 15 is arranged in the card slot 14, forming a structure that relies on the magnet 15 on the edge of the connecting plate 11 to quickly position the air bag 7 when it is stored. The side of the connecting plate 11 away from the air bag 7 is provided with a limiting ring 16 for the rope 9 of the spring pull rope mechanism 8 to pass through.

[0019] Sealing pad 17: A sealing pad 17 is glued to the airbag bubble 7 at one end of the airbag unit away from the cover plate 4 to ensure that the end of the airbag unit away from the cover plate 4 is flat. An elastic band is provided on the sealing pad 17, and there are multiple elastic bands arranged in an array. The elastic band includes two cross-arranged elastic strips 18. A rubber sheet 19 is glued to the sealing pad 17, and the end of the elastic strip 18 is glued to the center of the rubber sheet 19. The two elastic strips 18 are arranged in an "X" shape.

[0020] The present invention arranges a connecting ring and a cover plate on the medicine box, an airbag unit is arranged inside the connecting ring and the cover plate, and an air pump for inflation is arranged outside the medicine box, and the airbag unit is inflated to fill the empty space of the medicine box through a pressure switch and an air pipe, thereby reducing the surge of medicine liquid when the drone turns and adjusts its height; a plurality of lantern-shaped airbags are arranged, and an elastic net is arranged at the end cover of the airbag, and a connecting plate is arranged on the outer wall of each airbag, and adjacent connecting plates are connected by elastic ropes, so as to accelerate the horizontal movement when the airbag is not inflated. The speed of contraction in the direction, the setting of the connecting ring, the elastic net and the connecting plate prevent the airbag from irregular deformation during contraction; the rope of the spring pull rope mechanism passes through the upper limit ring of the connecting plate in turn, and is connected to the connecting plate near the bottom of the medicine box, and with the cooperation of the connecting plate magnet, the airbag unit is guided to be stored in the connecting ring position in the vertical direction; the setting of the sealing gasket ensures that the airbag unit has better contact with the medicine liquid, and forms a barrier above the medicine liquid to reduce surge, and the setting of the elastic band on the sealing gasket facilitates the storage of the sealing gasket.

[0021] The present invention has been described in detail above through specific implementation modes and embodiments, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. A plant protection spray drone, comprising a medicine box (1), characterized in that: A through groove (2) is provided near the liquid inlet of the medicine box (1), a connecting ring (3) is provided at the edge of the through groove (2) on the medicine box (1), a cover plate (4) is detachably connected to the end of the connecting ring (3) away from the medicine box (1), a sealing ring used in conjunction with the connecting ring (3) is provided in the cover plate (4), a through hole (5) is provided on the cover plate (4), an air bag unit is provided in the connecting ring (3), an air pump (6) is provided on the medicine box (1), and the air pump (6) is connected to the air bag unit through the air pipe (2 1) is connected to the airbag unit, so that after the liquid medicine in the medicine box (1) is used, the airbag unit is inflated by the air pump (6) to fill the empty space of the medicine box (1), the airbag unit comprises a plurality of airbags (7) that are connected to each other, each airbag (7) is provided with a storage mechanism outside, the cover plate (4) is provided with a spring pull rope mechanism (8), and the rope (9) of the spring pull rope mechanism (8) is connected to the storage mechanism, so that the airbag (7) is stored by the storage mechanism and the spring pull rope mechanism (8) when it is not inflated.

2. The plant protection spraying drone according to claim 1, characterized in that: The air sacs (7) are arranged in sequence along the vertical direction. The air sacs (7) present a hollow "lantern"-shaped structure. The inner walls of both ends of the air sacs (7) are provided with connecting rings (22), and the outer walls of both ends of the air sacs (7) are provided with elastic nets (10) extending to the storage mechanism.

3. The plant protection spraying UAV according to claim 1, characterized in that: The storage mechanism comprises a connecting plate (11) fixed to the side of the air bag (7), the connecting plates (11) are multiple and adjacent connecting plates (11) are connected by elastic ropes (12), the elastic ropes (12) are multiple and are arranged at intervals along the width direction of the connecting plate (11), and placement grooves (13) for placing the elastic ropes (12) are arranged at both ends of the connecting plate (11).

4. The plant protection spraying UAV according to claim 3, characterized in that: Each edge of the connecting plate (11) is provided with a slot (14), and a magnet (15) is provided in the slot (14), so that when the air bag (7) is stored, a structure is formed in which the air bag (7) is quickly positioned by relying on the magnet (15) on the edge of the connecting plate (11), and a limiting ring (16) for the rope (9) of the spring pull rope mechanism (8) to pass through is provided on a side of the connecting plate (11) away from the air bag (7).

5. The plant protection spraying UAV according to claim 1, characterized in that: A sealing pad (17) is arranged on the airbag bubble (7) at one end of the airbag unit away from the cover plate (4), and an elastic band is arranged on the sealing pad (17). The elastic bands are multiple and arranged in an array, and the elastic bands include two cross-arranged elastic strips (18). A rubber sheet (19) is arranged on the sealing pad (17), and the ends of the elastic strips (18) are glued to the center of the rubber sheet (19). The two elastic strips (18) are arranged in an "X"-shaped structure.

6. The plant protection spraying UAV according to claim 1, characterized in that: An air seat (20) connected to the air bladder (7) is provided on the cover plate (4); the air seat (20) is connected to the air pump (6) via an air pipe (21); and the air seat (20) is a hollow structure.

Images