Directional spraying device for plant protection

Abstract

The invention relates to the technical field of plant protection pesticide spraying, and discloses a plant protection directional spraying device which comprises a plant protection unmanned aerial vehicle, the plant protection unmanned aerial vehicle comprises a vehicle body, four rotor frames and two spraying heads, and the plant protection unmanned aerial vehicle further comprises two fixing rods, two rotating rods, two cover bodies, a cross rod, a first wind resistance plate and two reset parts. The two fixing rods are fixedly connected to the lower ends of the two rotor frames close to the head of the aircraft body in a one-to-one correspondence mode, the fixing rods vertically extend downwards, the two rotating rods are connected to the front sides of the lower ends of the two fixing rods in a one-to-one correspondence mode, the two reset pieces are arranged on the two sides of the first wind resistance plate, the reset pieces are fixedly connected with the head of the aircraft body, and the reset pieces reset the offset cross rod. According to the plant protection unmanned aerial vehicle, the effect that the pesticide excessively drifts towards the left side or the right side due to the lateral wind direction just in the advancing direction of the plant protection unmanned aerial vehicle in the windy weather can be dealt with, so that the pest expelling effect of crops with designated pesticide spraying is guaranteed, and meanwhile, the situation that adjacent crops are repeatedly or unevenly sprayed in advance is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of plant protection spraying, in particular to a plant protection directional spraying device. Background Art

[0002] With the continuous development of today's society, mechanical work continues to replace traditional manual work, and agricultural plant protection continues to develop. In order to ensure the spraying of pesticides on large areas of crops, pesticide spraying devices mostly use drones. At present, plant protection drones have become one of the indispensable devices in the agricultural field. Plant protection drones are used to achieve large-scale pesticide spraying of crops, reduce the workload of staff, etc., but with the widespread use of plant protection drones.

[0003] At present, electric multi-rotor agricultural drones are mostly used. Compared with oil-powered agricultural drones, they have the advantages of low price, environmental protection and no exhaust gas. Agricultural drones usually include a body, four rotors and are connected to the four inclined corners of the body through a rotor frame. Usually, the medicine box is installed at the bottom of the fuselage of the agricultural drone, and the sprayers are mostly distributed on both sides of the drone body. The spray pipe in the sprayer is connected to the delivery pump on the medicine box. A nozzle is installed at the spraying end of the spray pipe, and the nozzle extends downward. The nozzle can spray the liquid medicine in a cone shape. During the operation of the drone, the liquid medicine is sprayed to protect the plants and repel insects.

[0004] However, in windy weather, when using existing drones for spraying, the diffuse mist pesticides sprayed are easily blown away by the strong wind, greatly reducing the insect repellent effect on the designated crops. At the same time, the blown pesticides may drift excessively to the left and right and onto nearby crops, causing repeated or uneven additional spraying of adjacent crops. Summary of the Invention

[0005] The present invention provides a directional spraying device for plant protection, which can cope with the effect of excessive drifting of pesticides to the left or right side caused by the crosswind direction that is exactly opposite to the direction of travel of a plant protection drone in windy weather, thereby ensuring the insect repellent effect of the crops to be sprayed, and also avoiding the situation of repeated or uneven premature spraying of adjacent crops.

[0006] The present invention provides a directional spraying device for plant protection, including a plant protection drone, which includes a body, four rotor frames and two nozzles, wherein the two rotor frames are horizontally and tiltedly connected to the corners on both sides of the tail of the body, and the other two rotor frames are horizontally and tiltedly connected to the corners on both sides of the head of the body. The plant protection drone also includes: two fixed rods, two rotating rods, two covers, a cross bar, a first wind resistance plate, and two reset parts. The two fixed rods are fixedly connected to the lower ends of the two rotor frames near the head of the body in a one-to-one manner, the fixed rods extend vertically downward, and the two rotating rods are connected to the two fixed rods in a one-to-one manner. On the front side of the lower end of the rod, the side wall of the rotating rod and the fixed rod are hinged by a horizontally inserted hinge shaft. The two cover bodies are connected to the lower ends of the two rotating rods one by one. The cover body is provided with an opening. When the rotating rod is in a vertical state, the opening faces downward. The two nozzles are respectively connected to the cover body. The two ends of the cross bar are respectively hinged to the upper ends of the two rotating rods. The cross bar is horizontally arranged. The first wind baffle is vertically fixed to the cross bar. Concave cavities are provided on both sides of the first wind baffle. Two reset parts are both arranged on both sides of the first wind baffle. There is a distance between the reset part and the first wind baffle. The reset part is fixed to the head of the body, and the reset part resets the offset cross bar.

[0007] Preferably, the length of the rod section of the rotating rod above the hinge shaft is greater than the length of the rod section below the hinge shaft.

[0008] Preferably, the reset member includes a plate body, both sides of the plate body close to each other are connected to first magnets, and both sides of the first wind resistance plate are connected to second magnets that repel the corresponding first magnets.

[0009] Preferably, two first wind resistance plates are connected to the cross bar, and the two first wind resistance plates are respectively fixed to the upper and lower ends of the middle part of the cross bar. A hollow hole is opened in the middle part of the plate body along its thickness direction. The hollow hole is waist-shaped and its length extends vertically. The cross bar passes through the hollow hole, and the cross bar is gap-fitted with the first wind resistance plate.

[0010] Preferably, a fan is provided in the cover, the nozzle is closer to the opening side of the cover than the fan, the fan blows air toward the opening side of the cover, and a vent is provided at one end of the cover away from the opening.

[0011] Preferably, a second wind resistance plate extending vertically is fixedly connected to one side of the upper portions of the two rotating rods that are close to each other.

[0012] Preferably, the second wind baffle plates are in the shape of semi-arc plates, and the concave surfaces of the two second wind baffle plates face away from each other.

[0013] Preferably, a plurality of third wind baffles extending vertically are fixedly connected to the concave surface of the second wind baffle.

[0014] Preferably, each third wind resistance plate is in the shape of an arc plate, and the concave surface is inclined toward the rear side of the machine body.

[0015] Compared with the prior art, the beneficial effect of the present invention is that the device can support the rotating rod through the fixed rod, wherein the side wall of the rotating rod is hinged to the fixed rod through a horizontally inserted hinge shaft, so that the rotating rod can rotate around the axis of the hinge shaft, and the two rotating rods are always in a parallel state, and the upper ends are connected by a cross bar, thereby forming a four-bar mechanism similar to a parallelogram. No matter how the two rotating rods rotate, the cross bar is always in a horizontal state, and the cover body is in a conventional conical lampshade shape, and the diameter of the opening is larger than the internal size, so that it can cooperate with the current conventional nozzle to spray the medicine in a conical mist, and can avoid the cover body interfering with the range of the medicine sprayed by the nozzle as much as possible. This embodiment limits the end of the cover body with a smaller diameter to be connected to the lower end of the rotating rod, thereby realizing When the rod is horizontally displaced to the left relative to the front of the machine body, the two covers will drive the nozzle to deviate toward the opposite right side, and compensate for the path of the mist agent deviation caused by the wind through physical effects as much as possible. The first wind resistance plate provided in this device extends vertically, and the two plate surfaces face both sides of the machine body's travel path respectively, which can ensure that in windy weather, when the plant protection drone is blown by side wind during its forward movement, the strong wind can blow the first wind resistance plate to drive the horizontal displacement of the crossbar to the left or right, and at the same time cooperate with the partial shielding of the wind by the cover, to a certain extent, it can cope with the effect of excessive dispersion of the agent to the left or right caused by the side wind direction that is exactly the same as the travel direction of the plant protection drone in windy weather, so that the insect repellent effect of the designated sprayed crops is guaranteed, and it also avoids the situation of repeated or uneven premature spraying of adjacent crops. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a partial front-side structural view of a directional spraying device for plant protection provided by an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of the front side structure of a directional spraying device for plant protection provided by an embodiment of the present invention;

[0018] Figure 3 for Figure 2 A partial enlarged view of part A;

[0019] Figure 4 A schematic top view of the structure of a second wind baffle of a directional spraying device for plant protection provided by an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of the top view of a directional spraying device for plant protection provided by an embodiment of the present invention;

[0021] Figure 6This is a schematic structural diagram of a hollow hole in a directional spraying device for plant protection provided by an embodiment of the present invention.

[0022] Description of reference numerals:

[0023] 1. Agricultural drone; 11. Airframe; 12. Rotor frame; 13. Nozzle; 14. Fixing rod; 15. Rotating rod; 16. Hinge shaft; 17. Cover; 18. Crossbar; 19. First wind baffle; 20. Reset member; 201. Plate; 2011. Hollow hole; 202. First magnet; 203. Second magnet; 21. Fan; 22. Second wind baffle; 23. Third wind baffle; 24. Connecting shaft. DETAILED DESCRIPTION

[0024] A specific embodiment of the present invention is described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] refer to Figure 1 、 Figure 2 and Figure 3The present invention provides a directional spraying device for plant protection, including a plant protection drone 1, which includes a body 11, four rotor frames 12 and two nozzles 13, wherein the two rotor frames 12 are horizontally and tiltedly connected to the corners on both sides of the tail of the body 11, and the remaining two rotor frames 12 are horizontally and tiltedly connected to the corners on both sides of the head of the body 11. The plant protection drone 1 also includes: two fixed rods 14, two rotating rods 15, two covers 17, a cross bar 18, a first wind resistance plate 19, and two reset parts 20. The two fixed rods 14 are fixedly connected to the lower ends of the two rotor frames 12 near the head of the body 11 in a one-to-one manner, the fixed rods 14 extend vertically downward, and the two rotating rods 15 are connected to the lower ends of the two fixed rods 14 in a one-to-one manner. On the front side of the end, the side wall of the rotating rod 15 is hinged to the fixed rod 14 through a horizontally inserted hinge shaft 16, and the two cover bodies 17 are connected to the lower ends of the two rotating rods 15 one by one. The cover body 17 is provided with an opening, and the opening faces downward when the rotating rod 15 is in a vertical state. The two nozzles 13 are respectively connected to the cover body 17, and the two ends of the cross bar 18 are respectively hinged to the upper ends of the two rotating rods 15. The cross bar 18 is horizontally arranged, and the first wind resistance plate 19 is vertically fixed to the cross bar 18. Concave cavities are provided on both sides of the first wind resistance plate 19. Two reset members 20 are provided on both sides of the first wind resistance plate 19. There is a distance between the reset member 20 and the first wind resistance plate 19. The reset member 20 is fixed to the head of the body 11, and the reset member 20 resets the offset cross bar 18.

[0027] The rotatable rod 15 is pivoted to the left of the handle 14 and pivoted to the right of the handle 15. The rotatable rod 15 is pivoted to the right of the handle 15 and pivoted to the left of the handle 15. The embodiment defines that the end of the cover body 17 with a smaller diameter is connected to the lower end of the rotating rod 15, so that when the cross bar 18 is horizontally displaced in a tilted path to the left relative to the front of the body 11, the two cover bodies 17 will drive the nozzle 13 to deviate toward the opposite right side, and compensate for the path of the mist agent deviation caused by the wind as much as possible through physical effects. The first wind resistance plate 19 provided in this device extends vertically, and the two plate surfaces are respectively facing the two sides of the travel path of the body 11, which can ensure that in strong winds, when the plant protection drone 1 is blown by the side wind during its forward movement, the strong wind can blow the first wind resistance plate 19 to drive the horizontal deviation of the cross bar 18 to the left or right. At the same time, with the partial shielding of the wind by the cover body 17, it can, to a certain extent, cope with the effect of excessive drifting of the agent to the left or right caused by the side wind direction that is exactly the same as the travel direction of the plant protection drone 1 in strong winds, so that the insect repellent effect of the designated sprayed crops is guaranteed, and it also avoids the situation of repeated or uneven premature spraying of adjacent crops.

[0028] Further, refer to Figure 2 and Figure 3 The length of the rod section of the rotating rod 15 above the hinge shaft 16 is greater than the length of the rod section below the hinge shaft 16.

[0029] In the above embodiment, the upper portion of the rotating rod 15 is longer than the lower portion, which can more flexibly utilize the lever principle to achieve the effect of efficiently and quickly driving the rotating rod 15 to rotate.

[0030] Further, refer to Figure 2 The reset member 20 includes a plate body 201 , and both sides of the plate body 201 close to each other are connected to first magnets 202 , and both sides of the first wind resistance plate 19 are connected to second magnets 203 that repel the corresponding first magnets 202 .

[0031] In the above embodiment, the first magnet 202 and the second magnet 203 are configured to repel opposite charges. By utilizing this principle, the first wind resistance plate 19 can be reset after being deflected.

[0032] Further, refer to Figure 1 and Figure 2 Considering that a single first wind resistance plate 19 is not easily driven by strong winds, two first wind resistance plates 19 are connected to the cross bar 18. The two first wind resistance plates 19 are respectively fixed to the upper and lower ends of the middle part of the cross bar 18. A hollow hole 2011 is opened in the middle part of the plate body 201 along its thickness direction. The hollow hole 2011 is waist-shaped and its length extends vertically. The cross bar 18 passes through the hollow hole 2011, and the cross bar 18 and the first wind resistance plate 19 are clearance-matched.

[0033] In the above embodiment, the hollow hole 2011 is used to avoid the cross bar 18 so that the cross bar 18 will not be interfered by the two plates 201 during the displacement process.

[0034] Further, refer to Figure 2 and Figure 3 A fan 21 is provided in the cover body 17. The nozzle 13 is closer to the opening side of the cover body 17 than the fan 21. The fan 21 blows air toward the opening side of the cover body 17. A vent is provided at one end of the cover body 17 away from the opening.

[0035] In the above embodiment, the fan 21 is provided to provide a blowing force for the medicine sprayed from the nozzle 13, which can be used to resist the effect of the oblique wind force in strong winds to enhance the kinetic energy of the medicine after being sprayed.

[0036] Further, refer to Figure 2 and Figure 4 The upper sides of the two rotating rods 15 that are close to each other are fixedly connected with a second wind resistance plate 22 that extends vertically.

[0037] In the above embodiments, the second wind resistance plate is provided to assist in enhancing the response to strong winds, thereby more efficiently rotating the rotating rod 15. Specifically, the second wind resistance plate 22 is in the shape of a semi-arc plate, and the concave surfaces of the two second wind resistance plates 22 are facing away from each other. The concave surfaces of the second wind resistance plates 22 are fixedly connected to a plurality of third wind resistance plates 23 extending vertically. The shape limitation is used to form an effective high-resistance structure with better effect. Each third wind resistance plate 23 is in the shape of an arc plate and the concave surface is inclined toward the rear side of the body 11.

[0038] In the above embodiment, when strong winds occur, in order to increase the wind force through the first wind resistance plate 19, the second wind resistance plate 22 and the third wind resistance plate 23 to achieve the left horizontal deflection or right horizontal deflection strength of the cross bar 18, this embodiment also provides a method for further improving the deflection strength. Specifically, in the above embodiment, the fixing rod 14, the rotating rod 15, the cross bar 18, the first wind resistance plate 19 and the reset member 20 are connected to the two front rotor frames 12 connected to the body 11, so that the two rear rotor frames 12 connected to the body 11 are connected to the first wind resistance plate 19 and the second wind resistance plate 22. The rotor frame 12 is radially connected with a fixed rod 14, a rotating rod 15, a cross bar 18, a first wind resistance plate 19 and a reset member 20 of the same specification, material and relative position. Specifically, the two fixed rods 14 at the tail are also fixedly connected to the lower ends of the two rotor frames 12 near the tail of the fuselage 11, and the two fixed rods 14 also extend vertically downward. The rear sides of the two fixed rods 14 at the tail are also rotatably connected to the rotating rod 15 through the hinge shaft 16, so that the rotating rod 15 can rotate around the axis of the hinge shaft 16. The upper end of the rotating rod 15 is hinged to a horizontally extending cross bar 18, and the same first wind resistance plate 19, the second wind resistance plate 22, the third wind resistance plate 23 and the reset member 20 at the same position are set at the corresponding positions. At this time, two symmetrical and identical groups of directional cover bodies 17 are formed. The lower ends of the two rotating rods 15 on the front side are both horizontally extended backward and fixedly connected to a connecting rod. The connecting rod is horizontally fixedly connected to the lower end of the rear rotating rod 15, and the upper end of the cover body 17 with a vent hole can be fixedly connected to the connecting rod. Considering The length of the spray pipe for delivering medicine to the nozzle 13 is limited, and the cover body 17 can also be fixedly connected to the middle of the connecting shaft 24. At this time, the two cover bodies 17 will also be located on both sides of the body 11, so that the driving mode of driving the cover body 17 and the spraying direction of the nozzle 13 is changed from a single-core driving mode to a multi-core driving mode, which is beneficial to the relative turning of the cover body 17 and the nozzle 13 in windy weather. Of course, after the cover body 17 is connected to the connecting rod, when the rotating rod 15 is in a downward vertical state, the opening of the cover body 17 and the wind direction of the fan 21 will also be vertically downward.

[0039] The above disclosures are only a few specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A plant protection directional spraying device, comprising a plant protection drone (1), wherein the plant protection drone (1) comprises a body (11), four rotor frames (12) and two spray heads (13), wherein two of the rotor frames (12) are horizontally and tiltedly connected to the corners on both sides of the tail of the body (11), and the remaining two rotor frames (12) are horizontally and tiltedly connected to the corners on both sides of the head of the body (11), characterized in that: The plant protection drone (1) further comprises: Two fixing rods (14) are fixedly connected to the lower ends of the two rotor frames (12) close to the head of the body (11) in a one-to-one correspondence, and the fixing rods (14) extend vertically downward; Two rotating rods (15) are connected to the front sides of the lower ends of the two fixed rods (14) in a one-to-one correspondence, and the side walls of the rotating rods (15) are hinged to the fixed rods (14) through a horizontally inserted hinge shaft (16); Two covers (17) are connected to the lower ends of the two rotating rods (15) in a one-to-one correspondence. The covers (17) are provided with openings. When the rotating rods (15) are in a vertical state, the openings face downwards. The two nozzles (13) are respectively connected to the covers (17). A cross bar (18), two ends of which are respectively hinged to the upper ends of the two rotating rods (15), the cross bar (18) is arranged horizontally, and the cross bar (18) is fixedly connected to a first wind resistance plate (19) arranged vertically; Two reset members (20) are both arranged on both sides of the first wind resistance plate (19), with a distance between the reset member (20) and the first wind resistance plate (19), the reset member (20) is fixedly connected to the front part of the machine body (11), and the reset member (20) resets the offset cross bar (18).

2. A directional spraying device for plant protection according to claim 1, characterized in that: The length of the rod section of the rotating rod (15) located above the hinge shaft (16) is greater than the length of the rod section below the hinge shaft (16).

3. A plant protection directional spraying device according to claim 1 or 2, characterized in that: The reset member (20) comprises a plate body (201), both sides of the plate body (201) close to each other are connected to first magnets (202), and both sides of the first wind resistance plate (19) are connected to second magnets (203) that repel the corresponding first magnets (202).

4. A directional spraying device for plant protection according to claim 3, characterized in that: Two first wind resistance plates (19) are connected to the cross bar (18), and the two first wind resistance plates (19) are respectively fixed to the upper and lower ends of the middle part of the cross bar (18). A hollow hole (2011) is opened in the middle part of the plate body (201) along its thickness direction, and the hollow hole (2011) is waist-shaped and its length extends vertically. The cross bar (18) passes through the hollow hole (2011), and the cross bar (18) and the first wind resistance plate (19) are clearance-matched.

5. A directional spraying device for plant protection according to claim 1, characterized in that: A fan (21) is provided in the cover body (17), and the nozzle (13) is located closer to the opening side of the cover body (17) than the fan (21). The fan (21) blows air toward the opening side of the cover body (17), and a vent hole is provided at one end of the cover body (17) away from the opening.

6. A plant protection directional spraying device according to claim 4, characterized in that: A second wind resistance plate (22) extending vertically is fixedly connected to one side of the upper portions of the two rotating rods (15) that are close to each other.

7. A directional spraying device for plant protection according to claim 6, characterized in that: The second wind resistance plate (22) is in the shape of a semi-arc plate, and the concave surfaces of the two second wind resistance plates (22) are respectively facing away from each other.

8. A directional spraying device for plant protection according to claim 7, characterized in that: The concave surface of the second wind resistance plate (22) is fixedly connected to a plurality of third wind resistance plates (23) extending vertically.

9. A directional spraying device for plant protection according to claim 8, characterized in that: Each third wind resistance plate (23) is in the shape of an arc plate, and the concave surface is inclined toward the rear side of the machine body (11).

10. A directional spraying device for plant protection according to claim 1, characterized in that: Concave cavities are formed on both sides of the first wind resistance plate (19).

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