KR101775833B1 - Dron and method for supplying agricultural pesticide using the dron - Google Patents

Abstract

A drone is disclosed. The drone comprises: a main body having a landing rod mounted on the ground surface; a plurality of wing units coupled to the main body to enable the main body to fly; an agricultural pesticide storage container installed in the main body and having a space where an agricultural pesticide is stored; and a supply line of which one end is connected to the agricultural pesticide storage container and the other end has an outlet where the agricultural pesticide supplied from the agricultural pesticide storage container is discharged. The supply line is sagged downward by self-load, and the outlet is positioned below the landing rod. The present invention can directly supply the agricultural pesticide into water filled in a farm.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drone and a pesticide supply method using the same,

The present invention relates to a drone and a pesticide supplying method using the same, and more particularly, to a drone capable of directly supplying pesticide into water filled in a cropland and a pesticide supplying method using the same.

Cultivation of crops requires pest control using pesticides to prevent harmful insects from invading the crops. In order to prevent crop damage caused by weeds, it requires weeding with pesticides.

FIG. 1 is a view showing a control process of agricultural land according to the prior art. In FIG. 1, an agricultural chemical spreader having a plurality of nozzles 2 mounted on a cropland (AL) filled with water W is sprayed with a pesticide (L) .

In the case of weed (P2) in the early stage of growth, this method requires a large amount of pesticide application because the pesticide is supplied directly to the roots of the weeds but diluted with water, and the herbicidal efficiency is low. On the other hand, when the weeding is carried out while the weeds grow out of the water, it is necessary to spray more pesticide with a more stricter ingredient. In addition, the method of spraying the pesticide is not effective in controlling the pests hidden in the soil.

In order to solve these problems, some attempts have been made to spray pesticides using a small boat capable of radio control, but when the farm floor is not uniform, the boat is caught on the bottom of the agricultural land, A problem arises.

Therefore, new methods are needed to remove weeds early in growth or to remove pests that are hidden in the ground.

The present invention provides a drone and a pesticide supply method that can supply pesticides directly into water filled in cropland.

The present invention also provides a method for supplying drones and pesticides which can remove weeds and remove pests hidden in the ground at the initial stage of growth.

The drones according to the present invention comprise a main body having a landing rod seated on a ground when landing; A plurality of wings coupled to the main body to allow the main body to fly; An agrochemical reservoir installed in the main body and having a space for storing pesticides; And a supply line connected to the one end of the pesticide reservoir and through which the pesticide supplied from the pesticide reservoir is discharged, wherein the supply line is sagged down by its own weight, and the discharge port is lower than the landing rod Located.

In addition, the discharge port can be pumped with water filled in agricultural land in the pesticide supply mode to discharge the pesticide.

The impeller is coupled to the other end of the supply line and disposed at the rear of the discharge port. The impeller is rotated by the flow velocity of the water according to the flying of the main body, and disperses the pesticide discharged from the discharge port .

The apparatus may further include a supply line length adjusting unit coupled to the main body and configured to adjust a length of the supply line sagged down by its own weight.

Further, the supply line length adjuster includes: a support extending laterally from the main body; And a fixing unit that is movable in the longitudinal direction of the support and fixes the supply line to the support, wherein a length of the supply line, which is sagged down by its own weight in accordance with the movement of the fixing unit, .

Also, the length of the supply line may be adjusted to the length of the supply line, which is rotatably coupled to the body and is sagged down by its own weight in accordance with the rotation of the reel, .

The pesticide supply method according to the present invention is characterized in that the drone is flying in a state where the end of the supply line hanging down by the weight of the drone is immersed in the water filled in the agricultural land and the pesticide is supplied from the pesticide reservoir to the supply line And a dron supplying the pesticide into the water filled in the agricultural land through the discharge port formed at the end of the supply line.

According to the present invention, pesticide can be directly supplied into the water of the agricultural land through the supply line while the drone is flying over the agricultural land.

In addition, according to the present invention, since the pesticide is supplied into water, it is possible to remove weeds at the initial stage of growth, and the removal efficiency of pests hidden in the ground can be improved.

1 is a view showing a control process of agricultural land according to the prior art.
2 is a perspective view illustrating a drones according to an embodiment of the present invention.
Figure 3 is a front view of the drones of Figure 2;
4 is a view showing the arrangement of a wing support in a flying state.
5 is a view showing the arrangement of the blade supports in the storage state.
6 is a view showing a combination of a blade fixing part and a blade according to an embodiment of the present invention.
FIG. 7 is a view illustrating a process of supplying pesticides to a cropland in a drones in the pesticide supply mode according to an embodiment of the present invention.
8 is a view showing a supply line in which a pesticide dispersing portion is combined.
Fig. 9 is a cross-sectional view showing the pesticide dispersion unit and the supply line of Fig. 8;
10 is a view for explaining the driving of the pesticide dispersing portion during the flight of the drone.
11 is a view showing a supply line length adjuster according to an embodiment of the present invention.
12 is a view showing a supply line length adjuster according to another embodiment of the present invention.
13 is a view showing a fixing plate and a moving plate according to an embodiment of the present invention.
FIG. 14 is a top view of a main body according to an embodiment of the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the technical spirit of the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In this specification, when an element is referred to as being on another element, it may be directly formed on another element, or a third element may be interposed therebetween. Further, in the drawings, the thicknesses of the films and regions are exaggerated for an effective explanation of the technical content.

Also, while the terms first, second, third, etc. in the various embodiments of the present disclosure are used to describe various components, these components should not be limited by these terms. These terms have only been used to distinguish one component from another. Thus, what is referred to as a first component in any one embodiment may be referred to as a second component in another embodiment. Each embodiment described and exemplified herein also includes its complementary embodiment. Also, in this specification, 'and / or' are used to include at least one of the front and rear components.

The singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It is also to be understood that the terms such as " comprises "or" having "are intended to specify the presence of stated features, integers, Should not be understood to exclude the presence or addition of one or more other elements, elements, or combinations thereof. Also, in this specification, the term "connection " is used to include both indirectly connecting and directly connecting a plurality of components.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 2 is a perspective view showing a dron according to an embodiment of the present invention, and FIG. 3 is a front view showing a dron of FIG. 2. FIG.

Referring to FIGS. 2 and 3, the drone 10 is a unmanned aerial vehicle capable of flying over a cropland by a wireless controller. In the present embodiment, a hexa rotor, that is, a drone 10 capable of flying with six wings will be described as an example. According to the experiment, the drone 10 can fly with 10 to 20 liters of pesticide loaded. Alternatively, the drones 10 may have various numbers of blades depending on the weight of the pesticide being loaded.

The dron 10 includes a main body 100, a wing 200, an agricultural chemical supply unit 300, a wireless antenna 400, and a battery fixing unit 500.

The main body 100 has a structure in which the structures 200, 300, 400, and 500 are fastened, and is made of lightweight frames. The body 100 may comprise frames of aluminum or carbon fiber material. The main body 100 includes four support rods 110 and two landing rods 120, a front portion 130 in which various electronic devices are accommodated, and a fixing plate 140 for supporting the pesticide reservoir 310 . The drones 10 land on the landing rod 120 at landing.

A plurality of wing parts 200 are provided along the periphery of the main body 100 and are coupled to the main body 100 to enable flying. The wing portion 200 includes a wing support 210, an angle adjusting portion 220, a wing rotor 230, a wing fixing portion 240, and a wing 250.

The wing support 210 has a rod shape having a predetermined length and is provided in a direction in which one end is engaged with the main body 100 and the other end is away from the main body 100. The wing support 210 is provided in a number corresponding to the wing 250, and according to an embodiment, six wing supports 210 are provided. The wing supports 210 are disposed radially about the body 100. The wing supports 210 may be positioned on the same straight line with the body 100 therebetween in pairs.

Fig. 4 shows the arrangement of the wing support in the flying state, and Fig. 5 shows the arrangement of the wing support in the storage state.

Referring to FIGS. 4 and 5, an angle adjusting unit 220 may be provided between the main body 100 and the wing support 210. The angle adjusting unit 220 adjusts the angle of the wing support 210 with respect to the main body 100. The angle adjusting unit 220 can adjust and fix the angle of the blade support 210 by moving the fixing pin 221. The wing support 210 may be arranged to extend outwardly of the main body 100 as shown in FIG. 3 by adjusting the angle adjusting unit 220. In this state, the drones 10 for pesticide application can fly. 4, the wing support 210 may be folded inwardly of the main body 100 by adjusting the angle adjusting unit 220. [ The space occupied by the pesticide spraying drones 10 in the folded state is reduced. It can be mounted on a compact vehicle in a folded state.

A wing rotor (230) is provided at the other end of the wing support (210). Various types of electromagnetic induction motors can be used for the wing rotor 230. The wing rotor (230) generates a rotational force to rotate the wing (250).

The blade fixing portion 240 is engaged with the rotation axis of the blade rotor 230 and rotates together with the rotation axis of the blade rotor 230.

6 is a view showing a combination of a blade fixing part and a blade according to an embodiment of the present invention. Fig. 6 (a) shows the coupling between one type of blade fixing part and the blade, and Fig. 6 (b) shows the coupling between the other type of blade fixing part and the blade.

The wings 250 are divided into two groups according to the rotation direction, and the first wings 250a belonging to the first group rotate in the first rotation direction r1. And the second blades 250b belonging to the second group rotate in the second rotation direction r2. The second rotation direction r2 is opposite to the first rotation direction r1. The first group and the second group include the same number of blades (250a, 250b), respectively. According to the embodiment, three groups of blades 250a and 250b are included in each group.

Receiving portions 241a and 241b are formed at the upper ends of the vane fixing portions 240a and 240b. Threaded grooves 242a and 242b are formed on the inner surfaces of the accommodating portions 241a and 241b. The directions of the thread grooves 242a and 242b are formed in the same direction as the rotational directions r1 and r2 of the vanes 250a and 250b coupled to the receiving portions 241a and 241b.

A screw groove 242a in the first rotation direction r1 is formed in the first wing fixing portion 240a and a screw groove 242b in the second rotation direction r2 is formed in the second wing fixing portion 240b do. The first wing 250a is inserted and fixed into the receiving groove 241a of the first wing fixing portion 240a in the first rotation direction r1. The second wing 250b is inserted and fixed in the receiving groove 241b of the second wing fixing portion 240b in the second rotation direction r2. The rotation directions r1 and r2 of the blades 250a and 250b for flying and the blades 250a and 250b for coupling the blade fixing parts 240a and 240b are the same. This prevents the occurrence of safety accidents due to disengagement of the blades 250a and 250b since the tightening between the blades 250a and 250b and the blade fixing parts 240a and 240b is maintained during the flight.

Referring again to FIGS. 2 and 3, the pesticide supply unit 300 supplies pesticides to the cropland while the drone 10 is flying. The pesticide supply unit 300 supplies the pesticide directly to the water in the water filled cropland. The pesticide supply unit 300 includes an agrochemical reservoir 310, a supply line 320, a pump 330, and a control unit 340.

The pesticide storage container 310 is installed in the main body 100, and a space for storing pesticides therein is formed therein. The pesticide is stored in the pesticide reservoir 310 in a liquid phase. The pesticide can be stored in a liquid state by mixing the pesticide in the powder state with the solvent. The storage space of the pesticide storage container 310 may be partitioned into at least two spaces by the partition plate. The compartment of the storage space minimizes the occurrence of agitation of the pesticide during the flight of the drone (10).

In addition to the above-described method, at least two pesticide reservoirs 310 can be arranged in close contact with each other to simplify the two divided storage spaces. At this time, the partition walls which are in contact with each other between the pesticide storage tanks 310 serve as partition plates.

The supply line 320 provides the flow path through which the pesticide is supplied from the pesticide reservoir 310 and directly supplies the pesticide to the water of the farmland. The supply line 320 is connected to the pesticide reservoir 310 at one end and is dropped down by its own weight and the other end is positioned lower than the landing rod 120. At the other end of the supply line 320, a discharge port 321 for discharging the supplied pesticide to the outside is formed. According to an embodiment, the feed line 320 may be provided with a flexible material. The supply line 320 may be provided from a synthetic resin material. Although not shown in the figures, a weight may be provided at the other end of the supply line 320. [ The weight is made of a metal material, and the weight of the other end of the supply line 320 is added. By weight, the other end of the feed line 320 may be deployed generally perpendicular to the ground.

The pump 330 is connected to the supply line 320 and applies pressure within the supply line 320. The pump 330 can apply pressure from the pesticide storage container 310 to the discharge port 321 side. In addition, the pump 350 can apply pressure from the discharge port 321 to the pesticide storage container 310 side.

The control unit 340 controls the driving of the pump 330 between the pesticide supply mode and the standby mode. The pesticide supply mode is an operation mode for a period of time during which the pesticide discharging proceeds in water at the discharge port 321 of the supply line 320 during the flight of the drone 10. The standby mode is an operating mode for a period of time during which pesticide discharging does not proceed during flight of the drone 10. The standby mode may include a time period during which the drone 10 moves to the control point after taking-off, a time period waiting at the top of the control point, and a time period for moving to the landing point after the pesticide control.

During the pesticide supply mode, the control unit 340 controls the driving of the pump 330 so that pressure is applied from the pesticide storage container 310 to the discharge port 321 side. The pesticide stored in the pesticide storage container 310 is discharged into the water through the supply line 320.

During the standby mode, the control unit 340 controls the driving of the pump 330 to apply pressure from the discharge port 321 to the pesticide storage container 310 side. External air is introduced into the supply line 320 through the discharge port 321 by driving the pump 330 and supplied into the pesticide storage container 310 along the supply line 320. The outside air forms bubbles in the pesticide stored in the pesticide storage container 310 and circulates the pesticide.

When the agrochemical is stored in the pesticide storage container 310, the mixing uniformity of the pesticide may be lowered. Particularly in the case of pesticide where the powder is diluted, the powder may sink into the precipitate. When the pesticide is sprayed in this state, the pesticide of uneven composition is sprayed, and the effect of the control is deteriorated. Therefore, dilution process of pesticide is required periodically.

In the present invention, during the stand-by mode, external air flows into the pesticide reservoir (310) to circulate the pesticide, so that the pesticide dilution process can proceed until just before the pesticide supply mode. Therefore, the pesticide can be discharged in a uniform composition.

FIG. 7 is a view illustrating a process of supplying pesticides to a cropland in a drones in the pesticide supply mode according to an embodiment of the present invention.

Referring to FIG. 7, the drone 10 flows over the agricultural land (AL) at a height at which the discharge port 321 of the supply line 320 is submerged in the water W. The pesticide stored in the pesticide storage container 310 is directly discharged into the water W of the agricultural land AL through the supply line 320 by driving the pump 330. [ Since the drone 10 is free to fly over the agricultural land (AL), the pesticide can be supplied as water (W) in the entire area of the agricultural land (AL). The pesticide can be supplied in water (W) irrespective of the ground bending state of the agricultural land (AL). The pesticide (L) is absorbed by the weed (P2) growing in the water to inhibit the growth of weed (P2).

FIG. 8 is a view showing a supply line to which a pesticide dispersing portion is combined, and FIG. 9 is a sectional view showing the pesticide dispersing portion and the supply line of FIG.

8 and 9, the dron 10 may further include a pesticide dispersing unit 350. [ The pesticide dispersing unit 350 disperses the pesticide so that the pesticide discharged from the discharge port 321 spreads over a wide area in water.

The pesticide dispersion unit 350 includes a connection guide 351 and an impeller 355. The connection guide 351 is coupled with the other end of the supply line 320, and a receiving space 352 and a water inlet 353 are formed. The accommodation space 352 is formed inside the connection guide 351, and is open front and rear. The accommodation space 352 is provided in a space where the impeller 355 is located. The water inlet 353 is formed in a region between the discharge port 321 and the accommodation space 352 and is opened to allow the outside and the accommodation space 352 to communicate with each other. The impeller 355 is located in the receiving space 352 and engages with the connecting guide 351 so as to be rotatable.

10 is a view for explaining the driving of the pesticide dispersing portion during the flight of the drone.

10, the other end of the supply line 320 and the pesticide dispersing unit 350 are moved by being immersed in the water W of the agricultural land AL by the flight of the drone 10. The water W1 flows into the water inlet 353 by the movement in the water W and is discharged backward into the accommodation space 352. [ In this process, the impeller 355 is rotated by the flow velocity of the water W1. The rotational speed of the impeller 355 is proportional to the flying speed of the drones 10. The pesticide L is discharged from the discharge port 321 of the supply line 320 while the impeller 355 rotates. The pesticide L is introduced into the receiving space 352, diffused by the rotation of the impeller 355, and discharged into the water W.

The drone 10 may further include a supply line length adjuster. The supply line length adjuster adjusts the deflection length of the drooping feed line 320 by its own weight. The supply line length adjuster can adjust the deflection length of the supply line 320 considering the flight environment of the drones 10, the depth of the water filled in agricultural land, the degree of growth of weeds, and the like.

11 is a view showing a supply line length adjuster according to an embodiment of the present invention.

Referring to FIG. 11, the supply line length adjusting unit 360 includes a support 361 and a fixing portion 362.

The support base 361 is provided with a rod of a predetermined length, and one end thereof is engaged with the main body 100. The support base 361 is disposed so as to extend in the lateral direction of the main body 100.

The fixing table 362 is inserted into the support table 361, and fixes the supply line 320 to the support table 361. The fixing table 362 is movable in the longitudinal direction of the support table 361. The deflection lengths L1 and L2 of the supply line 320 are changed according to the position of the fixing table 362. [ The deflection length L1 of the supply line 320 is relatively long when the fixing table 362 is positioned adjacent to the main body 100 and the deflection length L1 of the supply line 320 becomes longer as the fixing table 362 is moved away from the main body 100. [ The length L2 is relatively short.

12 is a view showing a supply line length adjuster according to another embodiment of the present invention. 12 (b) shows the supply line length regulating portion viewed from the right side of (a).

Referring to FIG. 12, the supply line length adjuster 270 includes a reel 371 and a driver 372. The reel 371 is rotatably coupled to the main body 100, and the supply line 320 is wound and provided. The driving unit 372 can rotate the reel 371 clockwise or counterclockwise. The rotation of the reel 371 allows the supply line 320 to be wound on or unwound from the reel 371. The deflection length L1 of the supply line 320 is shortened when the supply line 320 is wound on the reel 371 and the deflection length L1 of the supply line 320 becomes long when the supply line 320 is loosened .

Although not shown in the drawings, the drone 10 may further include a distance sensor unit. The distance sensor unit may be attached to the main body 100 and measures the distance between the main body 100 and the water surface W stored in the agricultural land AL. According to the embodiment, an ultrasonic sensor can be used as the distance sensor unit. The drones 10 can be automatically controlled so that the distance between the main body 100 and the water surface measured by the distance sensor unit is maintained at a predetermined distance. The predetermined distance is a flight height at which the discharge port of the supply line 320 can be locked into the water W according to the length of the supply line 320.

The driving unit can automatically adjust the length of the supply line 320 based on the distance between the main body 100 and the water surface measured by the distance sensor unit. The driving unit adjusts the deflection length of the supply line 320 so that the length of the supply line 320 drooping down from the main body 100 can be locked in the water W.

13 is a view showing a fixing plate and a moving plate according to an embodiment of the present invention.

Referring to FIG. 13, the fixing plate 140 is fixed to the main body 100. The fastening plate 140 may be coupled to the support legs 110 of the body 100. A first latching part 141 is formed on the fixing plate 140. The first latching portions 141 are formed on both side edge regions of the fixing plate 140, and are positioned relatively higher than other regions.

The moving plate 370 is fixed to the bottom surface of the pesticide supply container 310. A second latching portion 371 is formed on both side edge regions of the moving plate 370. The pesticide supply container 310 is located in a region between the second latching portions 371.

The movable plate 370 is slidable along the fixed plate 140. By inserting the moving plate 370, the pesticide supply container 310 can be positioned below the main body 100. The first engaging portion 141 and the second engaging portion 371 are engaged with each other by inserting the moving plate 370. The second engaging portion 371 is caught by the first engaging portion 141 due to the difference in height between the first engaging portion 141 and the second engaging portion 371 so that the pulling of the moving plate 370 is restricted.

The moving plate 370 can be taken out when it is necessary to replenish the pesticide reservoir 310 or to replace the pesticide reservoir 310. [ The pulling out of the moving plate 370 pushes the first latching part 141 to a lower height than the second latching part 371 and retracts the moving plate 370.

With the provision of the moving plate 370, the present invention can easily replenish the pesticide and replace the pesticide supply container 310. Particularly, when it is desired to spray different pesticides, it is essential to replace the pesticide reservoir 310 due to residual pesticides. In this case, after the moving plate 370 is taken out, the pesticide storage container 310 may be replaced with a new one, and the moving plate 370 may be inserted again to fix the fixed plate 120.

FIG. 14 is a top view of a main body according to an embodiment of the present invention. FIG.

Referring to FIG. 14, a wireless antenna 400 and a battery fixing unit 500 are installed at an upper end of the main body 100.

The wireless antenna 400 wirelessly communicates with a controller (not shown) and transmits a signal transmitted from the controller to the controller.

The battery fixing part 500 fixes the battery 550. The battery fixing portion 500 includes support rods 510, a fixing plate 520, and a fastening member 530.

The support rods (510) have a rod shape with a predetermined length and are vertically installed and fastened to the upper surface of the main body (100). The support rods 510 are provided in a length corresponding to the height of the battery 550, and a plurality of the support rods 510 are disposed apart from each other.

A fastening member 530 is coupled to the upper ends of the support rods 510. The fastening member 530 fastens the support rod 510 and the fixing plate 520 together.

The fixing plate 520 is placed on top of the support rods 510. Fastening holes (521) are formed in the fixing plate (520). The fastening holes 521 are formed at positions corresponding to the support rods 510. The fastening holes 521 have an insertion region 521a and a fixed region 521b. The insertion region 521a communicates with the fixed region 521b and has a larger diameter than the fixed region 521b. The insertion region 521a has a size allowing the head portion of the fastening member 530 to pass therethrough and the fixing region 521b has a size that allows passage of the head portion of the fastening member 530. First, the fixing plate 520 is positioned so that the insertion areas 521a and the coupling parts of the coupling members 530 are aligned with each other. Then, the insertion areas 521a are inserted into the fixing members 520 530 so that the fixing plate 520 is lowered. The fixing plate 520 is laterally moved so that the head portion of the fastening member 530 is positioned in the fixing region 521b. The fixing plate 520 is fixed to the support rods 510 by tightening the prongs of the fastening members 530. The battery 550 may be pressed against the fixing plate 520 to be firmly fixed to the main body 100.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. It will also be appreciated that many modifications and variations will be apparent to those skilled in the art without departing from the scope of the invention.

10: Drones for spraying pesticides
100:
110: support rod
120: Landing rods
130: Full book
140: Fixing plate
200: wing portion
210: wing support
220:
230: wing rotor
240:
250: Wings
300: Pesticide Supply Department
310: Pesticide reservoir
320: Supply line
330: pump
340:
350: Agrochemical dispersing part
351: Connection Guide
355: Impeller
360, 370: supply line length adjusting section
361: Support
362:
371: Reel
372:
400: Wireless antenna
500: battery fixing section
510: support rod
520: Fixed plate
530: fastening member
550: Battery

Claims (7)

A main body having a landing rod seated on the ground at the time of landing;
A plurality of wings coupled to the main body to allow the main body to fly;
An agrochemical reservoir installed in the main body and having a space for storing pesticides;
A supply line having one end connected to the pesticide storage passage and having a discharge port through which the pesticide supplied from the pesticide storage container is discharged at the other end; And
And an impeller positioned behind the discharge port,
The supply line is sagged down by its own weight so that the discharge port is positioned lower than the landing rod,
The discharge port is pumped with water filled in agricultural land in the pesticide supply mode to discharge the pesticide,
Wherein the impeller rotates by the flow velocity of the water according to the flying of the main body and disperses the pesticide discharged from the discharge port. The method according to claim 1,
And a connection guide coupled to the other end of the supply line and having a housing space in which the impeller is located and a water inlet in which the water flows into the housing space. 3. The method of claim 2,
Wherein the impeller is rotatably coupled to the connection guide. delete A main body having a landing rod seated on the ground at the time of landing;
A plurality of wings coupled to the main body to allow the main body to fly;
An agrochemical reservoir installed in the main body and having a space for storing pesticides;
And a supply line connected at one end to the pesticide storage and connected at the other end with a discharge port through which the pesticide supplied from the pesticide storage container is discharged,
The supply line is sagged down by its own weight so that the discharge port is positioned lower than the landing rod,
And a supply line length adjuster coupled to the main body and adjusting the length of the supply line sagged down by its own weight,
The supply line length adjuster
A support extending laterally from the body; And
And a fixing unit movable in the longitudinal direction of the support member and fixing the supply line to the support member,
Wherein the length of the supply line sagged down by its own weight is adjusted in accordance with the movement of the fixing portion on the support. A main body having a landing rod seated on the ground at the time of landing;
A plurality of wings coupled to the main body to allow the main body to fly;
An agrochemical reservoir installed in the main body and having a space for storing pesticides; And
And a supply line connected at one end to the pesticide storage and connected at the other end with a discharge port through which the pesticide supplied from the pesticide storage container is discharged,
The supply line is sagged down by its own weight so that the discharge port is positioned lower than the landing rod,
And a supply line length adjuster coupled to the main body and adjusting the length of the supply line sagged down by its own weight,
The supply line length adjuster
A reel rotatably coupled to the body and to which the feed line is wound,
Wherein the length of the supply line sagged down by its own weight as the reel rotates is adjusted. The drones fly in a state where the end of the supply line stuck downward by the weight of the drones is immersed in the water filled in the cropland,
The pesticide is supplied from the pesticide storage container mounted on the drone to the supply line,
The pesticide is supplied into the water filled in the agricultural land through the discharge port formed at the end of the supply line,
Wherein the impeller positioned at the rear of the discharge port is rotated by the flow rate of the water according to the flying of the dron, and the pesticide discharged from the discharge port is dispersed.

Images