Agricultural unmanned aerial vehicle with simultaneous pesticide spraying and fertilization functions

Abstract

The utility model discloses an agricultural unmanned aerial vehicle with functions of spraying pesticide and fertilizing simultaneously, which comprises an unmanned aerial vehicle body, a main body and a steering engine mechanism connected to the main body, the liquid medicine tank is detachably connected to the bottom of the main body; the spraying device is arranged on the unmanned aerial vehicle body and communicates with the pesticide liquid tank so as to pump out pesticide liquid in the pesticide liquid tank and spray the pesticide liquid into the environment in an atomized manner; the powder tank assembly is detachably connected to the bottom of the liquid medicine tank; and the powder spreading device is arranged at the bottom of the powder tank assembly and is used for uniformly spreading the powder in the powder tank assembly downwards. By means of the scheme, the agricultural unmanned aerial vehicle has the function of spraying liquid and powder at the same time, the efficiency of the unmanned aerial vehicle is greatly improved, and the unmanned aerial vehicle can better meet the requirement for double-spraying operation in the flowering and heading period of rice.

Description

Technical Field

[0001] This utility model relates to agricultural drones, and in particular to an agricultural drone capable of simultaneously spraying pesticides and applying fertilizers. Background Technology

[0002] Existing agricultural drones have relatively limited functionality. When conducting field operations, each flight can only apply one type of pesticide or fertilizer. When it is necessary to apply both liquid and powder pesticides (such as foliar fertilizer + insecticide), it must be done in two separate operations, doubling the costs of fuel, time, and labor, resulting in very low efficiency. This limitation is particularly pronounced during the rice flowering and heading stage.

[0003] It's important to know that applying foliar fertilizer to rice during its flowering and heading stage can increase yield, while spraying pesticides can effectively reduce pests. However, the flowering and heading stage of rice is very short (5-7 days), limiting the time available for operations. Furthermore, the timing of fertilization and pesticide spraying during this period should ideally avoid the peak flowering time (8:00-12:00) to prevent damage to the rice panicles. Completing large-scale pesticide spraying within such a short timeframe (before 8:00 AM and after 3-4:00 PM) is obviously very difficult. In actual production, to ensure the completion of one task, another is often abandoned, or multiple drones are used simultaneously, resulting in low efficiency or high costs. Therefore, simultaneously applying pesticides and fertilizers during flight would effectively solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide an agricultural drone that can simultaneously spray pesticides and apply fertilizer, so as to achieve the simultaneous application of fertilizer and pesticides.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An agricultural drone capable of simultaneously spraying pesticides and applying fertilizers includes

[0007] The drone body includes the main body and the servo mechanism connected to the main body;

[0008] The liquid medicine container is detachably connected to the bottom of the main body;

[0009] The spraying device is installed on the drone body and connected to the liquid medicine tank to extract the liquid medicine in the tank and spray it into the environment in an atomized form.

[0010] Powder container assembly, detachably connected to the bottom of liquid medicine container;

[0011] A powder dispensing device is installed at the bottom of the powder container assembly to evenly dispense the powder in the powder container assembly downwards.

[0012] Preferably, the spraying device includes an atomizing nozzle and a suction mechanism. The atomizing nozzle is located at the bottom of the servo mechanism, and the suction mechanism is connected to the bottom of the main body. The suction mechanism and the atomizing nozzle are connected through a conduit. The suction end of the suction mechanism extends into the bottom of the liquid tank to extract the liquid and pump it into the atomizing nozzle.

[0013] Preferably, the upper surface of the medicine container is provided with a replenishment port, and the replenishment port is covered with a sealing cap.

[0014] Preferably, the powder container assembly includes a guide rail, which is fixedly connected to the bottom of the liquid container. A slider is slidably mounted on the guide rail. A baffle A is fixedly connected to one end of the guide rail, and a baffle B is freely mounted on the other end of the guide rail. At least one locking bolt passes through the baffle B and is screwed onto the guide rail, so that the baffle A and the baffle B are clamped at both ends of the slider. A powder container is fixedly connected to the bottom of the slider. A feed inlet is provided at the top of the powder container, and a sealing door is provided on the feed inlet.

[0015] Preferably, the feed inlet is provided with a telescopic tube, which can be pulled outward and upward at an angle, and the sealing door is provided at the port of the telescopic tube, which can be pushed open to both sides.

[0016] Preferably, the powder container has a discharge port at the bottom, and the powder spreading device is disposed on the discharge port to evenly discharge the powder in the powder container; the powder spreading device includes a spiral cutter, the upper part of which is placed in the powder container, and the lower part of which extends coaxially into the discharge port, and the upper part of which is coaxially connected to a drive motor.

[0017] Preferably, a cone top with a gap is provided below the discharge port, and a fan for blowing air into the cone shape is connected to the bottom of the cone top.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] Compared with existing agricultural drones, this solution has the function of simultaneously applying liquid and powder agents, making it better suited for short-duration field application operations. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a diagram showing the state of the telescopic tube in this utility model when it is pulled out and powder is being added;

[0022] Figure 3 This is an exploded view of this utility model;

[0023] Figure 4 This is a cross-sectional view of the present invention.

[0024] Reference numerals: 1. UAV body; 11. Main body; 12. Servo mechanism; 2. Liquid tank; 21. Sealing cap; 3. Spraying device; 31. Atomizing nozzle; 32. Suction mechanism; 4. Powder tank assembly; 41. Guide rail; 42. Slider; 43. Baffle A; 44. Baffle B; 45. Locking bolt; 46. Powder tank; 47. Sealing door; 48. Telescopic tube; 5. Powder spreading device; 51. Spiral reamer; 52. Drive motor; 53. Cone top; 54. Fan. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] like Figures 1-4The agricultural drone shown is equipped with the functions of simultaneously spraying pesticides and applying fertilizer. It includes a drone body 1, which consists of a main body 11 that integrates control, air power, and power supply, and four evenly arranged servo mechanisms 12 connected to the main body. The servo mechanisms 12 rotate at high speed under the drive of the main body to provide lift for the agricultural drone to take off.

[0029] At the bottom of the main body 11 of the drone, there is a detachable liquid tank 2 connected by a snap-fit ​​connection. The liquid tank contains liquid medicine for spraying.

[0030] It is important to know that, such as Figure 3 As shown, a spraying device 3 is also installed on the drone body 1. The liquid inlet pipe of the spraying device is connected to the liquid medicine tank 2 so that the liquid medicine in the liquid medicine tank 2 can be extracted and sprayed into the environment in a mist.

[0031] In addition, a powder container assembly 4 for storing the solid powder to be applied can be detachably connected to the bottom of the liquid medicine container 2. For example... Figure 4 As shown, a set of powder dispensing devices 5 are provided at the bottom of the powder canister assembly 4 to deliver the powder in the powder canister assembly and disperse it into the environment when powder needs to be dispensed.

[0032] A further improvement based on the above-described embodiment is that the spraying device 3 in this solution includes several atomizing nozzles 31 and a set of suction mechanisms 32. The atomizing nozzles are installed at the bottom of the servo mechanism 12, while the suction mechanism is installed at the bottom of the main body 11. The suction mechanism 32 is connected to each atomizing nozzle via a guide to ensure that the liquid medicine drawn from the medicine tank 2 by the suction mechanism 32 can be evenly pumped into each atomizing nozzle, and the liquid medicine is sprayed through atomization by the atomizing nozzles. It should be noted that the suction mechanism in this solution includes a suction pump and a suction tube connected to the inlet of the suction pump. This suction tube extends to the bottom of the medicine tank 2 to completely extract the liquid medicine from the tank. It should also be noted that a counterweight is provided at the lower end of the suction tube to ensure that it remains at the bottom of the medicine tank.

[0033] During pesticide spraying using agricultural drones, if the pesticide solution runs out and needs replenishment, removing the pesticide tank 2 from the main body 11 for replenishment is relatively inefficient. To improve the replenishment efficiency, a further improvement is made to the above-described implementation method: a replenishment port is provided on the upper surface of the pesticide tank 2, and a sealing cap 21 is provided on the replenishment port. When replenishment is needed, the sealing cap is opened and the pesticide solution is directly fed into the pesticide tank 2 through the replenishment port.

[0034] It should also be noted that, to ensure the stability of the connection between the powder tank assembly 4 and the liquid tank 2, and to prevent the powder tank assembly 4 from detaching from the liquid tank 2 during the dual-spray process, thus avoiding production accidents, and to ensure ease of connection, the powder tank assembly 4 includes at least one guide rail 41, which is fixed to the bottom of the liquid tank 2. A slider 42 is slidably mounted on the guide rail. The guide rail is T-shaped to prevent the slider 42 from detaching after being mounted. To prevent the slider from sliding laterally off the guide rail, a baffle A 43 is fixedly connected to one end of the guide rail. The cross-sectional area of ​​baffle A is larger than that of the guide rail. A baffle B 44 is freely disposed at the other end of the guide rail. A locking bolt 45 passes through baffle B and is screwed to the end of the guide rail 41, so that baffles A and B can clamp the slider. It should be noted that the cross-section of baffle B in this design is also larger than the cross-section of guide rail 41 to prevent the slider from sliding off the side of baffle B. Meanwhile, as... Figure 4 As shown, a powder container 46 is fixedly connected to the bottom of the slider for storing the powder to be applied. Furthermore, to facilitate replenishment after powder application, the powder container 46 in this design has a feed inlet at its top, equipped with a sealing door 47 that can be opened and closed. When powder needs to be replenished, there is no need to remove the powder container, making it convenient and quick.

[0035] In addition, it should be noted that, in order to facilitate the fixing of the locking bolt 45 on the guide rail, the locking bolt in this solution has a certain length (extending to the bottom of the liquid tank), and the end of the locking bolt is an internal hexagonal structure, so as to facilitate the tightening and loosening of the locking bolt using standard tools.

[0036] Additionally, it should be noted that in this design, the inlet and sealing door 47 on the powder tank 46 are located below the liquid tank 2, which may make subsequent powder replenishment difficult. To further improve the convenience of powder replenishment, a telescopic tube 48 is provided in the inlet, and the sealing door is installed on the port of the telescopic tube 48, which can be opened and closed. It should be noted that in this design, each section of the telescopic tube has a certain damping during the pulling process to prevent the pulled-out tube from retracting due to its own weight. Furthermore, to extend the pulled-out telescopic tube port as far outward as possible for convenient powder replenishment to the powder tank, the telescopic tube in this design extends upward and outward at an angle after being pulled out.

[0037] like Figure 4 As shown, in this scheme, the powder dispensing device 5, which delivers powder from the powder container 46 and disperses it into the environment, includes a spiral cutter 51 and a coaxial drive motor 52 connected to the spiral cutter. It should be noted that, as... Figure 4As shown, in this design, the upper part of the spiral reamer is arranged in the powder tank 46, and the lower part extends into the discharge port opened at the bottom of the powder tank 46. The spiral reamer is driven by a drive motor to rotate, so as to transport the powder in the powder tank to the outside of the powder tank.

[0038] It is important to know that in this scheme, after the powder is delivered from the powder container, it relies on the rapid flight of the drone and airflow to disperse and evenly spread the powder onto the farmland below.

[0039] However, in actual implementation, insufficient powder dispersion may occur when the drone's flight speed is insufficient and airflow is weak. To address this, this solution includes a conical top 53 below the discharge port of the powder tank 46, with the diameter of the top gradually increasing from top to bottom. A gap is left between the top and the powder tank for powder discharge. Simultaneously, a fan 54 is installed at the bottom of the top 53 to blow air towards it. When the fan 54 operates, the air is guided by the top of the top and then diffuses outwards. At the same time, the powder delivered by the helical cutter slides off the edge of the top and is then blown outwards by the airflow from the bottom of the top, thus improving the dispersion of the powder.

[0040] Working principle: When dual spraying of liquid and powder pesticides is required, the operator installs the powder tank assembly at the bottom of the liquid pesticide tank. Then, the liquid pesticide and solid powder are added to the liquid and powder tanks respectively. Subsequently, the agricultural drone is activated and flies over the field to carry out the application. During this process, the suction device and the powder application device work simultaneously to spread both pesticides and powders onto the field below, achieving simultaneous application of both pesticides and greatly improving the efficiency of fertilization and pesticide application.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An agricultural drone capable of simultaneously spraying pesticides and applying fertilizer, characterized in that: The unmanned aerial vehicle body (1) comprises a main body (11) and a rudder mechanism (12) connected to the main body (11); The liquid medicine tank (2) is detachably connected to the bottom of the main body (11); The spraying device (3) is arranged on the unmanned aerial vehicle body (1) and is in communication with the liquid medicine tank (2) to extract the liquid medicine in the liquid medicine tank (2) and spray it in the form of atomization to the environment; The powder tank assembly (4) is detachably connected to the bottom of the liquid medicine tank (2); The powder spreading device (5) is arranged at the bottom of the powder tank assembly (4) to uniformly spread the powder in the powder tank assembly (4) downward.

2. The unmanned agricultural vehicle with the functions of simultaneously spraying pesticides and fertilizing according to claim 1, characterized in that: The spraying device (3) comprises an atomizing nozzle (31) and a suction mechanism (32), the atomizing nozzle (31) is arranged at the bottom of the rudder mechanism (12), the suction mechanism (32) is connected to the bottom of the main body (11), the suction mechanism (32) is in communication with the atomizing nozzle (31) through a conduit, and the suction end of the suction mechanism (32) extends into the bottom of the liquid medicine tank (2) to extract the liquid medicine and pump it into the atomizing nozzle (31). 3.The unmanned agricultural vehicle with the functions of simultaneously spraying pesticides and fertilizing according to claim 2, characterized in that: The upper surface of the liquid medicine tank (2) is provided with a liquid supplementing port, and a sealing cover (21) is arranged on the liquid supplementing port.

4. The unmanned agricultural vehicle with the functions of simultaneously spraying pesticides and fertilizing according to claim 3, characterized in that: The powder tank assembly (4) comprises a guide rail (41), the guide rail (41) is fixedly connected to the bottom of the liquid medicine tank (2), a sliding block (42) is slidably arranged on the guide rail (41), one end of the guide rail (41) is fixedly connected to a baffle A (43), the other end of the guide rail (41) is freely provided with a baffle B (44), at least one locking bolt (45) passes through the baffle B (44) and is screwed on the guide rail (41) to clamp the baffle A (43) and the baffle B (44) on both ends of the sliding block (42), and the bottom of the sliding block (42) is fixedly connected with a powder tank (46), the upper part of the powder tank (46) is provided with an inlet, and the inlet is provided with a sealing door (47).

5. The unmanned agricultural vehicle with the functions of simultaneously spraying pesticides and fertilizing according to claim 4, characterized in that: The inlet is provided with a telescopic pipe (48), the telescopic pipe (48) can be inclined outward and upward, and the sealing door (47) can be pushed away to the port of the telescopic pipe (48).

6. The unmanned agricultural vehicle with the functions of simultaneously spraying pesticides and fertilizing according to claim 5, characterized in that: The bottom of the powder tank (46) is provided with a discharge port, and the powder spreading device (5) is arranged on the discharge port; the powder spreading device (5) comprises a spiral reamer (51), the upper part of the spiral reamer (51) is arranged in the powder tank (46), the lower part of the spiral reamer (51) is coaxially arranged in the discharge port, and the upper part of the spiral reamer (51) is coaxially connected with a driving motor (52).

7. The unmanned agricultural vehicle with the functions of simultaneously spraying pesticides and fertilizing according to claim 6, characterized in that: A tapered top (53) is arranged below the discharge port with a gap, and the bottom of the tapered top (53) is connected with a conical blower (54).

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