Anti-collision structure for plant protection unmanned aerial vehicle

Abstract

The invention relates to the technical field of plant protection unmanned aerial vehicle equipment, in particular to an anti-collision structure for a plant protection unmanned aerial vehicle, which comprises a rack and a vehicle body fixed on the rack, a controller is arranged in the vehicle body, vehicle arms are arranged at four corners of the rack, a frame body is fixed on the vehicle arms, and air bag strips which are used for covering the vehicle body and can be stored are arranged in the frame body. An air pump communicated with the air bag strip is arranged at one end of the frame body, the air pump is electrically connected with a power source through a controller, connecting columns are arranged at the two ends of the air bag strip in the length direction, wheels are rotationally connected to the ends, away from the air bags, of the connecting columns, and a track for the wheels to walk is arranged in the frame body; a spring pull rope mechanism is arranged at the end, close to the air pump, in the connecting column, and a rope of the spring pull rope mechanism is connected with the connecting column at the end, away from the air pump, in the frame body.

Description

Technical Field

[0001] The invention belongs to the technical field of plant protection UAV equipment, and in particular relates to an anti-collision structure for a plant protection UAV. Background Art

[0002] Plant protection drones are increasingly being used. The end of some fields has complex terrain and many trees and dead grass. Plant protection drones often need to make sharp turns when they fly to the end of the field. Due to the presence of liquid medicine in the medicine box and environmental factors, the fuselage needs to tilt at a large angle when turning. Once the turning speed is too fast, it is easy to cause rollover. The large angle tilt or rollover will cause great damage to the plant protection drone if it hits a tree.

[0003] Chinese patent application number 2023220483269 discloses a drone protective cover, including a drone body and a fixing frame, a fixing frame is provided on one side of the drone body, the fixing frame is fixedly connected to the drone body, a propeller is provided at one end of the fixing frame, a slide groove is provided on one side of the fixing frame, a slider is provided inside the slide groove, the slider is slidably connected to the slide groove, a shock absorber is provided inside the slide groove, the shock absorber is fixedly connected to the slide groove, a protective rod is provided on one side of the slider, the protective rod is fixedly connected to the slider, a gear rod is provided at the tail of the drone body, the gear rod is fixedly connected to the drone body, and the protection function of the propeller is realized by the provided slide groove, slider, shock absorber and protective rod.

[0004] With respect to the above-mentioned related technologies, the inventors found the following defects: although the wing position has a protective function, when the body of the agricultural drone needs to make a sharp turn due to environmental factors, the fuselage tilts at a large angle or rolls over, and the body position does not have a protective function. Summary of the invention

[0005] In order to reduce the damage to the body of a plant protection UAV due to the lack of protective measures when the body rolls over due to a sharp turn on complex terrain, the present invention provides an anti-collision structure for a plant protection UAV.

[0006] The technical solution is that the anti-collision structure for a plant protection UAV includes a frame, a body fixed on the frame, a controller arranged in the body, arms arranged at the four corners of the frame, a frame fixed on the arms, an airbag strip for covering the body and being retractable arranged in the frame, a plurality of airbag strips being arranged evenly spaced along the length direction of the frame, an air pump connected to the airbag strip being arranged at one end of the frame, the air pump being electrically connected to a power supply through the controller, adjacent airbag strips being connected through air columns to form a grid structure, connecting columns being arranged at both ends in the length direction of the airbag strip, an end of the connecting column away from the airbag being rotatably connected to a wheel, a track for the wheel to travel being arranged in the frame, a spring pull rope mechanism being arranged at one end of the connecting column close to the air pump, a rope of the spring pull rope mechanism being connected to the connecting column at one end of the frame away from the air pump, and a counterweight being arranged at one end of the frame away from the air pump.

[0007] Preferably, a limiting rod is provided at one end of the airbag strip away from the air pump, and both ends of the limiting rod are fixedly connected to the connecting column through a connecting block. Adjacent connecting columns are provided with magnets that attract each other, and the connecting column fixes the magnets through a connecting ring with an integral structure therewith.

[0008] Preferably, there are multiple air columns and they are evenly spaced along the length of the airbag strip. An elastic cover is provided on the outside of the air column, and the two ends of the elastic cover are bonded to two adjacent airbag strips. An elastic net is provided in the gap between the airbag strip and the air column, and the elastic net is bonded to the edge of the airbag strip.

[0009] Preferably, a protective plate is provided on a side of the frame away from the machine body, the protective plate is arranged around the frame, and the cross-section of the protective plate is triangular.

[0010] Preferably, each of the four machine arms is provided with a positioning ring, and a positioning rod used in conjunction with the positioning ring is provided on one side of the frame body close to the machine body, and the positioning ring is fixed to the positioning rod by bolts.

[0011] Preferably, grooves for placing the connecting column are provided at both ends of the airbag column in the length direction, and an air seat for connecting the airbag strip and the trachea is provided in the frame.

[0012] The beneficial effect of the present invention is that a frame is arranged on the machine arm, and airbag strips and air columns that can be moved out to cover the machine body are arranged in the frame, and the air pump is electrically connected to the power supply through the controller in the machine body. When the controller receives a rollover signal, the airbag column and the air column are inflated and form a grid structure in the frame, thereby reducing damage to trees or other debris above the machine body that is rolled over; The connection column and the wheel at the end of the airbag strip facilitate the movement of the airbag strip along the track in the frame. The elastic net shields the gap between the airbag strip and the air column to prevent debris from entering. The spring pull rope mechanism and the limit rod are set up to quickly store the airbag strips and the air column without inflation. The magnet on the connecting column is set up to arrange the airbag strips in sequence by relying on the connecting column during the storage process. The elastic cover outside the air column is set up to facilitate the storage of the air column and assist the storage of the airbag strips. The setting of the positioning ring on the arm and the positioning rod on the frame makes it easy to adjust the distance between the frame and the body through bolts. The setting of the triangular protective plate is used to reduce the resistance of the plant protection UAV during takeoff. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of the anti-collision structure for the plant protection UAV of the present invention; Figure 2 It is an enlarged view of the anti-collision structure diagram A of the plant protection UAV of the present invention; Figure 3 It is an enlarged view of the anti-collision structure diagram B of the plant protection UAV of the present invention; Figure 4 It is an enlarged view of the anti-collision structure diagram C of the plant protection UAV of the present invention; Figure 5 It is a cross-sectional view of the anti-collision structure for the plant protection UAV of the present invention.

[0014] Among them, 1 is an arm, 2 is a frame, 3 is an airbag strip, 4 is an air column, 5 is a connecting column, 6 is a wheel, 7 is a track, 8 is a spring pull rope mechanism, 9 is a rope, 10 is a limit rod, 11 is a connecting block, 12 is a connecting ring, 13 is a magnet, 14 is an elastic cover, 15 is an elastic net, 16 is a protective plate, 17 is a positioning ring, 18 is a positioning rod, 19 is a groove, and 20 is an air seat. 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: According to the specification Figure 1-4As shown, the anti-collision structure for plant protection UAV includes a frame, a body fixed on the frame, a controller is arranged in the body, an arm 1 is arranged at the four corners of the frame, a wing is arranged on the arm 1, and a retractable protective cover is also arranged on the arm 1. The above belongs to the prior art and will not be repeated here. A frame 2 is fixed on the arm 1, and the frame 2 is a rectangular ring structure. An airbag strip 3 for covering the body and retractable is arranged in the frame 2. There are multiple airbag strips 3 and they are evenly spaced along the length direction of the frame 2. Adjacent airbag strips 3 are connected by air columns 4 to form a grid structure. The airbag strips 3 and the air columns 4 are both prior art. An air pump connected to the airbag strip 3 through an air pipe is arranged at one end of the frame 2. The air pump belongs to the prior art. The air seat 20 for connecting the airbag strip 3 and the air pipe is fixed by screws on the inner wall of the frame 2. The air seat 20 is a hollow box-shaped structure. The air seat 20 belongs to the prior art. The air pump is electrically connected to the power supply through the controller. When the controller receives a signal of rollover or large-angle tilt in a complex environment, the air pump is powered on to inflate the airbag strip 3, forming a protective structure above the body. Connecting columns 5 are provided at both ends of the airbag strip 3 in the length direction. Grooves 19 for gluing the connecting columns 5 are provided at both ends of the airbag column in the length direction. The end of the connecting column 5 away from the airbag is rotatably connected to a wheel 6, and a track 7 for the wheel 6 to travel is provided in the frame 2. A spring pull rope mechanism 8 is provided at one end of the connecting column 5 close to the air pump. 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 connecting column 5 at one end of the frame 2 away from the air pump. A counterweight block is provided at one end of the frame 2 away from the air pump to ensure the balance of the frame 2 when the plant protection UAV takes off. A limit rod 10 is glued to one end of the airbag strip 3 away from the air pump, and both ends of the limit rod 10 are fixedly connected to the connecting column 5 by bolts through a connecting block 11 with an integral structure. Adjacent connecting columns 5 are provided with magnets 13 that attract each other. The connecting column 5 fixes the magnet 13 through a connecting ring 12 that is an integral structure with the connecting column 5. The connecting ring 12 is arranged perpendicular to the connecting column 5. The arrangement of the magnet 13 is used to arrange the airbag strips 3 in sequence by relying on the connecting column 5 during the storage process.

[0017] In one embodiment, according to the attached Figure 1 and 3 As shown, there are multiple air columns 4 and they are evenly spaced along the length direction of the airbag strip 3. An elastic cover 14 is provided on the outside of the air column 4, and the two ends of the elastic cover 14 are glued to two adjacent airbag strips 3. An elastic net 15 is provided in the gap between the airbag strip 3 and the air column 4, and the elastic net 15 is glued to the edge of the airbag strip 3. The provision of the elastic net 15 shields the gap between the airbag strip 3 and the air column 4 to prevent debris from entering.

[0018] In one embodiment, according to the attached Figure 5As shown, a protective plate 16 is fixed with screws on one side of the frame away from the machine body. The protective plate 16 is arranged around the frame and has a triangular cross section. A positioning ring 17 is fixed to each of the four machine arms 1 by screws, and a positioning rod 18 used in conjunction with the positioning ring 17 is threadedly connected to one side of the frame 2 close to the machine body. The positioning ring 17 is fixed to the positioning rod 18 by bolts.

[0019] The implementation principle of the anti-collision structure for the plant protection drone in the embodiment of the present application is as follows: when the plant protection drone flies to a complex environment area and needs to tilt at a large angle or roll over, the air pump starts working through the action of the controller, and the airbag strips and air columns are inflated to fill the frame to form a protective layer outside the body; after the crisis is resolved, the gas in the airbag column and the air column is discharged, and the limit rod drives the airbag strip to reset under the action of the spring pull rope mechanism, and the wheels on the connecting column move along the track, and the connecting column is arranged again under the action of the magnet to achieve the storage of the airbag strips and the air column.

[0020] The present invention arranges a frame on the machine arm, and arranges airbag strips and air columns inside the frame that can be moved out to cover the machine body. The air pump is electrically connected to a power supply through a controller inside the machine body. When the controller receives a rollover signal, the airbag columns and the air columns are inflated to form a grid structure inside the frame, thereby reducing damage to trees or other debris at the rollover position above the machine body.

[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. An anti-collision structure for a plant protection UAV, comprising a frame, a body fixed on the frame, a controller arranged in the body, and arms (1) arranged at the four corners of the frame, characterized in that: A frame (2) is fixed on the machine arm (1), and an airbag strip (3) for covering the machine body and being retractable is arranged in the frame (2). There are a plurality of airbag strips (3) and they are evenly spaced along the length direction of the frame (2). An air pump connected to the airbag strip (3) is arranged at one end of the frame (2), and the air pump is electrically connected to a power supply through a controller. Adjacent airbag strips (3) are connected through air columns (4) to form a grid structure. Connecting columns (5) are arranged at both ends in the length direction of the airbag strips (3). The end of the connecting column (5) away from the airbag is rotatably connected to a wheel (6). A track (7) for the wheel (6) to travel is arranged in the frame (2). A spring pull rope mechanism (8) is arranged at one end of the connecting column (5) close to the air pump. A rope (9) of the spring pull rope mechanism (8) is connected to the connecting column (5) at one end of the frame (2) away from the air pump. A counterweight is arranged at one end of the frame (2) away from the air pump.

2. The anti-collision structure for a plant protection UAV according to claim 1, characterized in that: A limit rod (10) is provided at one end of the airbag strip (3) away from the air pump, and both ends of the limit rod (10) are fixedly connected to the connecting column (5) via a connecting block (11), and mutually attractive magnets (13) are provided on adjacent connecting columns (5), and the connecting column (5) fixes the magnet (13) via a connecting ring (12) with an integral structure therewith.

3. The anti-collision structure for a plant protection UAV according to claim 1, characterized in that: There are a plurality of air columns (4) which are evenly spaced along the length direction of the airbag strip (3). An elastic cover (14) is provided on the outside of the air column (4). The two ends of the elastic cover (14) are bonded to two adjacent airbag strips (3). An elastic net (15) is provided in the gap between the airbag strip (3) and the air column (4). The elastic net (15) is bonded to the edge of the airbag strip (3).

4. The anti-collision structure for a plant protection UAV according to claim 1, characterized in that: A protective plate (16) is provided on a side of the frame away from the machine body, the protective plate (16) is arranged around the frame, and the cross section of the protective plate (16) is triangular.

5. The anti-collision structure for a plant protection UAV according to claim 1, characterized in that: Each of the four machine arms (1) is provided with a positioning ring (17); a positioning rod (18) used in conjunction with the positioning ring (17) is provided on a side of the frame (2) close to the machine body; the positioning ring (17) is fixed to the positioning rod (18) by bolts.

6. The anti-collision structure for a plant protection UAV according to claim 1, characterized in that: Grooves (19) for placing the connecting column (5) are provided at both ends of the airbag column in the length direction, and an air seat (20) for connecting the airbag strip (3) and the air pipe is provided in the frame (2).

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