A spraying device for drones and its usage method

Abstract

A pesticide refill device for drone spraying and its usage method belong to the field of agricultural machinery. It includes an outer cylinder, a filter barrel, a separating device, and a connecting component. A connecting plate I is fixedly connected to the top of the inner wall of the outer cylinder. The top of the connecting component has a connecting hole, which is connected to the outer wall of the outer cylinder via a bearing. A connecting plate II is fixedly connected to the top of the outer wall of the filter barrel, which is located inside the outer cylinder, with connecting plate II positioned above connecting plate I. A separating device is provided inside the filter barrel. This invention not only allows for single or double filtration based on the pesticide's solubility, reducing residue residue in the drone's pesticide storage tank and minimizing subsequent cleaning time, but also prevents pesticide splashing, avoiding waste, and facilitates cleaning of the filter barrel.

Description

Technical Field

[0001] This invention relates to a spraying device for drones and its usage method, belonging to the field of agricultural machinery. Background Technology

[0002] With technological advancements, more and more farmers are choosing to use drones for pesticide spraying. This is not only simple to operate but also saves time and labor. However, due to the limited payload capacity of drones, multiple refills are required during spraying. Currently, the method for adding pesticides is relatively simple: a water pump draws the pesticide mixed with water into the drone's storage tank. While this method is simple, insoluble particles or impurities inevitably appear during the mixing of powdered pesticides. Adding pesticides in this way requires subsequent cleaning of the drone's storage tank, which is very troublesome. Although some drones have filters installed at the inlet of the storage tank, when the water pump flow is high, the filters can cause some pesticide to splash out, resulting in waste. Therefore, this refilling device was designed. Summary of the Invention

[0003] The purpose of this invention is to solve the aforementioned problems in the background art by providing a spraying device for drones and its usage method.

[0004] The present invention achieves the above objectives by adopting the following technical solution:

[0005] A spraying device for drones includes an outer cylinder, a filter barrel, a separator, a threaded cylinder, and a connector. A connecting plate I is fixedly connected to the top of the inner wall of the outer cylinder. The connector has a connecting hole at its top, which is connected to the outer wall of the outer cylinder via a bearing. A connecting plate II is fixedly connected to the top of the outer wall of the filter barrel, which is located inside the outer cylinder, with connecting plate II positioned above connecting plate I. A separator is located inside the filter barrel, and the threaded cylinder is threadedly connected to the bottom of the inner wall of the outer cylinder.

[0006] A method of using a spraying device for unmanned aerial vehicles (UAVs) includes the following steps:

[0007] Step 1: Insert the water pipe into the filter canister, move the threaded cylinder to the lowest point, and start the water pump connected to the water pipe;

[0008] Step 2: After the pesticide enters the filter tank from the water pipe, it is blocked by the partition plate and passes through the filter tank for filtration. Then, it is discharged into the drone's pesticide storage tank through the gap between the bottom of the filter tank and the threaded cylinder, round hole I, and round hole II.

[0009] Step 3: After moving the threaded cylinder to the highest point, start the water pump. After the pesticide enters the filter barrel from the water pipe, it is blocked by the partition plate and passes through the filter barrel for filtration. The threaded cylinder also blocks the pesticide solution located between the outer cylinder and the filter barrel, allowing it to pass through the filter barrel again for secondary filtration. Then, it is discharged into the drone's pesticide storage tank through round holes I and II.

[0010] Compared with the prior art, the beneficial effects of the present invention are: the present invention can not only select single or double filtration according to the solubility of pesticides, so as to reduce the residue in the drone's pesticide storage tank and reduce the time consumed in subsequent cleaning, but also prevent pesticides from splashing out, avoiding waste, and the present invention is also easy to clean the filter tank. Attached Figure Description

[0011] Figure 1 This is a front sectional view of a spraying device for drones according to the present invention;

[0012] Figure 2 This is a top view of the outer cylinder of a spraying device for drones according to the present invention;

[0013] Figure 3 This is a schematic diagram of the outer cylinder of a spraying device for drones according to the present invention;

[0014] Figure 4 This is a front view of the filter barrel of a spraying device for drones according to the present invention;

[0015] Figure 5 This is a top view of the filter barrel of a spraying device for drones according to the present invention;

[0016] Figure 6 This is a schematic diagram of the structure of a separator device for a spraying device for drones according to the present invention;

[0017] Figure 7 This is a schematic diagram of the structure of a threaded cylinder for a spraying device for drones according to the present invention;

[0018] Figure 8 This is a top view of a pad block for a drone spraying refill device according to the present invention;

[0019] Figure 9 This is a schematic diagram of the structure of a connector for a drone spraying refill device according to the present invention. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Specific implementation method one: as follows Figure 1-9 As shown in the figure, this embodiment describes a spraying device for drones, including an outer cylinder 1, a filter barrel 3, a separating device 4, a threaded cylinder 5, and a connector 6; a connecting plate I 111 is fixedly connected to the top of the inner wall of the outer cylinder 1; the top of the connector 6 is provided with a connecting hole 61, which is connected to the outer wall of the outer cylinder 1 by a bearing; a connecting plate II 31 is fixedly connected to the top of the outer wall of the filter barrel 3, the filter barrel 3 is disposed inside the outer cylinder 1, and the connecting plate II 31 is located at the upper end of the connecting plate I 11; the filter barrel 3 is provided with a separating device 4 inside, and the threaded cylinder 5 is threadedly connected to the bottom of the inner wall of the outer cylinder 1.

[0022] The filter barrel 3 has a vertical groove 32 on its inner wall; the separating device 4 includes a separating plate 41; and sliders 42 that slide in cooperation with the groove 32 are fixedly connected to both sides of the separating plate 41. The sliders 42 and the groove 32 are interference-fitted. By adjusting the position of the separating plate 41, secondary filtration can be performed when it is in the middle position of the filter barrel 3, single filtration can be performed when the separating plate 41 is at the bottom of the filter barrel 3, and cleaning of the filter barrel 3 can be performed when the separating plate 41 is in the circular hole I 51.

[0023] The filter barrel 3 has a vertical groove 32 on its inner wall; the separating device 4 includes a separating plate 41; and sliders 42 that slide in cooperation with the groove 32 are fixedly connected to both sides of the separating plate 41.

[0024] A pull ring 43 is fixedly connected to the lower end of the partition plate 41; a sealing ring is provided on the outer circular surface of the partition plate 41; the partition plate 41 is slidably engaged with the circular hole I 51 of the threaded cylinder 5.

[0025] The bottom of the threaded cylinder 5 is provided with a circular hole I 51 and a circular hole II 52 coaxial with the circular hole I 51.

[0026] When the threaded cylinder 5 moves to its highest point, the bottom of the filter barrel 3 is in close contact with the threaded cylinder 5.

[0027] Two connecting plates I11 and II31 are provided, and both connecting plates I11 and II31 are arc-shaped. When connecting plates I11 and II31 overlap, it is convenient to discharge cleaning water, so as to achieve the purpose of cleaning water rinsing the inner and outer walls of the filter barrel 3.

[0028] The central angles corresponding to the connecting plates I11 and II31 are greater than 90°. During filtration, the central angles corresponding to the connecting plates I11 and II31 being greater than 90° can seal the space at the upper end of the filter barrel 3 and the outer cylinder 1, preventing pesticides from flowing out from the space at the upper end of the filter barrel 3 and the outer cylinder 1.

[0029] The upper end of the partition plate 41 is connected to a shaft 45 via a bearing; an agitator 44 is fixedly connected to the shaft 45. The pesticide flowing out of the water pipe 2 drives the agitator 44 to rotate, providing centrifugal force to the pesticide and accelerating its passage through the filter bucket 3.

[0030] A rotating rod 46 is provided in a set of opposing filter holes on the filter screen 3, and two bevel gears I 47 are provided on the rotating rod 46; a bevel gear II 48 is provided on the shaft 45, meshing with one of the bevel gears I 47; the lower end of the connecting plate I 11 is connected to a rotating cylinder 12 via a bearing; a connecting rod 13 is provided inside the rotating cylinder 12, and a limiting groove 15 is provided on the inner wall of the rotating cylinder 12; a limiting block 14 is provided on the side of the connecting rod 13, which is slidably engaged with the limiting groove 15; and a limiting block 14 is provided on the outer side of the rotating cylinder 12, which is engaged with the other bevel gear I 47. The connecting rod 13 has a meshing bevel gear Ⅲ16; a gear 17 is fixedly connected to the lower end of the connecting rod 13; an inner cylinder 56 is provided on the inner wall of the threaded cylinder 5, which can rotate relative to the threaded cylinder 5; an annular toothed groove 55 is provided on the upper end of the inner wall of the inner cylinder 56, and the toothed groove 55 meshes with the gear 17; an obliquely arranged baffle 53 is also fixedly connected to the inner wall of the inner cylinder 56, the baffle 53 contacts the outer wall of the filter barrel 3, and a pad 54 is fixedly connected between two adjacent baffles 53; the thickness of the pad 54 increases linearly from the upper end to the bottom end of the threaded cylinder 5. During secondary filtration, bevel gears III16 and II48 mesh with the corresponding bevel gear I47. After the shaft 45 rotates, it can drive the inner cylinder 56 to rotate, which in turn causes the baffles 53 and pads 54 on the inner cylinder 56 to rotate. The pesticide flowing between two adjacent baffles 53 gradually increases in thickness as the pads 54 increase, accelerating the pesticide to pass through the filter barrel 3 again, speeding up secondary filtration, avoiding affecting the flow rate and increasing the continuous application time.

[0031] The shaft 45 and the rotating rod 46 are offset so that the stirring blade 44 can move downward with the partition plate 41.

[0032] A method of using a spraying device for unmanned aerial vehicles (UAVs) includes the following steps:

[0033] Step 1: Insert water pipe 2 into filter bucket 3, move threaded cylinder 5 to the lowest point, and start the water pump connected to water pipe 2;

[0034] Step 2: After the pesticide enters the filter tank 3 from the water pipe 2, it is blocked by the partition plate 41 and passes through the filter tank 3 for filtration. Then, it is discharged into the pesticide storage tank of the drone through the gap between the bottom of the filter tank 3 and the threaded cylinder 5, the round hole I 51, and the round hole II 52.

[0035] Step 3: After moving the threaded cylinder 5 to the highest point, start the water pump. The pesticide enters the filter barrel 3 from the water pipe 2 and is blocked by the partition plate 41 to pass through the filter barrel 3 for filtration. The pesticide solution located between the outer cylinder 1 and the filter barrel 3 is blocked by the threaded cylinder 5 and passes through the filter barrel 3 again for secondary filtration. Then it is discharged into the pesticide storage tank of the drone through the round hole I 51 and round hole II 52.

[0036] The working principle of this invention is as follows: When using this device, the water pipe 2 is inserted into the filter barrel 3, and then the connector 6 is threaded to the liquid inlet of the medicine storage cylinder on the drone through the thread on the inner wall of the connector 6 to prevent the device from detaching when replenishing medicine. Then, the filter barrel 3 is inserted into the outer cylinder 1, and the connecting plate II 31 is interference-fitted with the outer cylinder 1. When replenishing medicine, the connecting plate I 11 and the connecting plate II 31 seal the gap between the outer cylinder 1 and the filter barrel 3. Finally, the threaded cylinder 5 is threaded to the bottom of the outer cylinder 1.

[0037] When the threaded cylinder 5 moves to the lowest point, the water pump connected to the water pipe 2 is started. After the pesticide enters the filter bucket 3 from the water pipe 2, it is blocked by the partition plate 41, allowing the pesticide solution to pass through the filter bucket 3 for filtration. Since there is a gap between the threaded cylinder 5 and the bottom of the filter bucket 3 when the threaded cylinder 5 is at the lowest point, the pesticide passing through the filter bucket 3 will be discharged into the pesticide storage tank of the drone through the gap between the bottom of the filter bucket 3 and the threaded cylinder 5, the round hole I 51, and the round hole II 52, thus completing the filtration.

[0038] During the filtration process, the pesticide flowing out of the water pipe 2 impacts the stirring blade 44, causing it to rotate and making the pesticide rotate inside the filter bucket 3. Under the action of centrifugal force, the filtration can be accelerated.

[0039] When the threaded cylinder 5 moves to the highest point, the water pump connected to the water pipe 2 is started. After the pesticide enters the filter barrel 3 from the water pipe 2, it is blocked by the partition plate 41, which makes the pesticide pass through the filter barrel 3 for filtration. Since the threaded cylinder 5 is located at the highest point, the threaded cylinder 5 is close to the bottom of the filter barrel 3. Therefore, the pesticide that has passed through the filter barrel 3 passes through the filter barrel 3 again for secondary filtration. After that, it is discharged into the pesticide storage tank of the drone through the round hole I 51 and the round hole II 52.

[0040] During the secondary filtration process, the rotation of the stirring blade 44 drives the rotation of the bevel gear I 47, which in turn drives the rotation of the bevel gear II 48, which in turn drives the rotation of the bevel gear III 16. This causes the rotating drum 12 and the connecting rod 13 to rotate, which in turn drives the gear 17 to rotate. The gear 17 drives the inner drum 56 to rotate through the annularly arranged toothed groove 55, which in turn drives the baffle 53 to rotate. This causes the pesticide to flow into the two adjacent baffles 53. Since there is a pad 54 with a gradually increasing thickness from top to bottom between the two adjacent baffles 53, as the inner drum 56 rotates, the baffles 53 drive the pesticide to flow downwards at an accelerated speed. Under the influence of the pad 54, the space between the two baffles 53 gradually decreases from top to bottom, thereby accelerating the pesticide's secondary passage through the filter barrel 3 and preventing the pesticide flow rate from slowing down due to secondary filtration.

[0041] During cleaning, pull the pull ring 43 to disengage the bevel gear II 47 from the bevel gear I 47, move the partition plate 41 into the round hole I 51, and move the slider 42 into the round hole II 52. Then rotate the threaded cylinder 5, which drives the gear 17 and connecting rod 13 to move downwards through the tooth groove 55 until the threaded cylinder 5 moves to the lowest point, leaving a gap between the filter bucket 3 and the threaded cylinder 5. Then rotate the filter bucket 3 so that the connecting plate II 31 rotates to coincide with the connecting plate I 11, exposing the gap between the two connecting plates I 11. Start the water pump to draw clean water into the filter bucket 3 through the water pipe 2. The water washes the inner wall of the filter bucket 3, and after contacting the partition plate 41 and the bottom of the threaded cylinder 5, it flows upwards and upwards along the gap between the threaded cylinder 5 and the filter bucket 3, washing the outer wall of the filter bucket 3. Finally, it is discharged through the gap between the two connecting plates I 11, completing the cleaning.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drone pesticide spraying device, characterized in that: The device includes an outer cylinder (1), a filter barrel (3), a separator (4), a threaded cylinder (5), and a connector (6); a connecting plate I (11) is fixedly connected to the top of the inner wall of the outer cylinder (1); the top of the connector (6) is provided with a connecting hole (61), which is connected to the outer wall of the outer cylinder (1) by a bearing; a connecting plate II (31) is fixedly connected to the top of the outer wall of the filter barrel (3), the filter barrel (3) is located inside the outer cylinder (1), and the connecting plate II (31) is located at the upper end of the connecting plate I (11); a separator (4) is provided inside the filter barrel (3), and the threaded cylinder (5) is connected to the bottom of the inner wall of the outer cylinder (1) by a thread; When the threaded cylinder (5) moves to its highest point, the bottom of the filter barrel (3) comes into close contact with the threaded cylinder (5). 2.The medicine-continuing device for unmanned aerial vehicle pesticide spraying according to claim 1, characterized in that: The filter barrel (3) has a vertical groove (32) on its inner wall; the separation device (4) includes a separation plate (41); the two sides of the separation plate (41) are fixedly connected to sliders (42) that slide in cooperation with the groove (32).

3. A spraying device for unmanned aerial vehicles (UAVs) according to claim 2, characterized in that: A pull ring (43) is fixedly connected to the lower end of the partition plate (41); a sealing ring is provided on the outer circular surface of the partition plate (41); the partition plate (41) is slidably fitted with the circular hole I (51) of the threaded cylinder (5).

4. A spraying device for unmanned aerial vehicles (UAVs) according to claim 2, characterized in that: The bottom of the threaded cylinder (5) is provided with a circular hole I (51) and a circular hole II (52) coaxial with the circular hole I (51).

5. A spraying device for unmanned aerial vehicles (UAVs) according to claim 1 or 4, characterized in that: There are two connecting plates I (11) and II (31), and both connecting plates I (11) and II (31) are arc-shaped.

6. A spraying device for unmanned aerial vehicles (UAVs) according to claim 5, characterized in that: The central angles corresponding to the connecting plate I (11) and the connecting plate II (31) are greater than 90°.

7. A spraying device for unmanned aerial vehicles (UAVs) according to claim 6, characterized in that: The upper end of the partition plate (41) is connected to a shaft (45) via a bearing; a stirring blade (44) is fixedly connected to the shaft (45).

8. A spraying device for unmanned aerial vehicles (UAVs) according to claim 7, characterized in that: A rotating rod (46) is provided in a set of opposing filter holes on the filter barrel (3), and two bevel gears I (47) are provided on the rotating rod (46); a bevel gear II (48) is provided on the shaft (45) to mesh with one of the bevel gears I (47); the lower end of the connecting plate I (11) is connected to a rotating cylinder (12) through a bearing; a connecting rod (13) is provided inside the rotating cylinder (12) to slide with it, and a limiting groove (15) is provided on the inner wall of the rotating cylinder (12); a limiting block (14) is provided on the side of the connecting rod (13) to slide with the limiting groove (15); a bevel gear II (48) is provided on the outside of the rotating cylinder (12) to mesh with the other bevel gear I (47). Gear III (16); a gear (17) is fixedly connected to the lower end of the connecting rod (13); an inner cylinder (56) is provided on the inner wall of the threaded cylinder (5) and can rotate relative to the threaded cylinder (5); an annular toothed groove (55) is provided on the upper end of the inner wall of the inner cylinder (56), and the toothed groove (55) meshes with the gear (17); multiple baffles (53) with the same inclination direction are also fixedly connected on the inner wall of the inner cylinder (56), the multiple baffles (53) contact the outer wall of the filter barrel (3), and a pad (54) is fixedly connected between two adjacent baffles (53); the thickness of the pad (54) increases linearly from the upper end of the threaded cylinder (5) to the bottom end of the threaded cylinder (5).

9. A method of using the spraying device for unmanned aerial vehicles (UAVs) as described in claim 8, characterized in that: The method of use includes the following steps: Step 1: Insert the water pipe (2) into the filter bucket (3), move the threaded cylinder (5) to the lowest point, and start the water pump connected to the water pipe (2); Step 2: After the pesticide enters the filter bucket (3) from the water pipe (2), it is blocked by the partition plate (41) and passes through the filter bucket (3) for filtration. Then, it is discharged into the pesticide storage tank of the drone through the gap between the bottom of the filter bucket (3) and the threaded cylinder (5), the round hole I (51), and the round hole II (52). Step 3: After moving the threaded cylinder (5) to the highest point, start the water pump. After the pesticide enters the filter bucket (3) from the water pipe (2), it is blocked by the partition plate (41) and passes through the filter bucket (3) for filtration. The liquid between the outer cylinder (1) and the filter bucket (3) is blocked by the threaded cylinder (5) and passes through the filter bucket (3) again for secondary filtration. Then it is discharged into the storage tank of the drone through the round hole I (51) and round hole II (52).

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