A plant protection drone using a smoke machine

Abstract

This invention discloses a fogging machine for agricultural drones, relating to the field of agricultural machinery technology. It includes a drone main unit, a liquid storage body, a power connection cable, a fogging machine body, and connecting fittings. The liquid storage body is mounted on the drone main unit, and the power connection cable is installed on the drone main unit, with the other end of the power connection cable connected to the fogging machine body. The fogging machine body is equipped with connecting fittings, with the other end of the connecting fittings connected to the drone main unit. It features a Laval nozzle and a conical coil. This conical shape allows for efficient heat exchange during heating, enabling the additives inside the coil to fully vaporize. Combined with the Laval nozzle, it allows for efficient spraying and produces denser fog particles.

Description

Technical Field

[0001] This invention relates to the field of plant protection equipment technology, specifically a fogging machine for plant protection drones. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are a general term for unmanned aerial vehicles equipped with autopilots, program control devices, and other equipment. They can be tracked and located by ground stations or pilots. Compared with manned aircraft, they have advantages such as small size, low cost, and ease of use. UAVs can take off vertically under radio remote control, land automatically upon recovery, and are reusable. Agricultural drones are widely used for agricultural tasks such as pesticide spraying, pollination, and sowing. As a key component for pesticide spraying, the reliability of the nozzle is crucial for agricultural drones.

[0003] However, currently available drones equipped with fogging machines for agricultural spraying are no longer sufficient to meet user needs due to relatively underdeveloped technology. Existing fogging machines for agricultural spraying drones are often integrated with the drone, resulting in poor spraying performance, short spray range, and non-detachable design, making them incompatible with handheld fogging machines and limiting their application to various working conditions. Therefore, we propose a fogging machine for agricultural spraying drones to address the aforementioned problems. Summary of the Invention

[0004] The purpose of this invention is to provide a fogging machine for agricultural drones, in order to solve the problem mentioned in the background art that the fogging machines currently used for agricultural drones on the market are no longer able to meet people's needs due to the relatively imperfect technology. The existing fogging machines for spraying agricultural drones are often integrated with the drone, and the spraying effect of such fogging machines is relatively poor in practical applications, with a short spraying distance, and they are not detachable and cannot be used with handheld fogging machines, thus making them unsuitable for different working conditions in practical applications.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a plant protection drone fogging machine, comprising a drone host, a liquid storage body, a power connection cable, a fogging machine body and connecting hardware, wherein the liquid storage body is provided on the drone host, the power connection cable is installed on the drone host, and the other end of the power connection cable is connected to the fogging machine body, and the connecting hardware is installed on the fogging machine body, and the other end of the connecting hardware is connected to the drone host;

[0006] The drone host includes a propulsion system, a bracket, a limiting sleeve, a power interface, metal plates, and a battery. The bracket is installed below the propulsion system, and a limiting sleeve is provided on the bottom of the bracket. A power interface is provided at the rear of the propulsion system, and metal plates are distributed on the power interface. A battery is electrically connected to the power interface.

[0007] The liquid storage body includes a drug storage tank, a drug pump, an auxiliary agent storage tank, and a fuel tank. The drug storage tank is installed in the middle of the support. The drug pump is installed at the bottom of the drug storage tank. The auxiliary agent storage tank is installed at the bottom of the support. The fuel tank is installed inside the limiting sleeve.

[0008] The power connection cable includes a power take-up head, a slot, and a connecting wire. The power take-up head has a slot and a connecting wire is connected to it. The power take-up head is mounted on the metal plate.

[0009] The main body of the smoke generator includes a housing, a wind shield, a coil, a Laval nozzle, a connecting pipe, a chemical pipe, a ventilation slot, a spray gun, a fuel pipeline, a pressure regulating valve, a pulse igniter, an additive pipeline, a through hole, an additive pump, a transformer, a remote control receiver, a fan, and a power cord. The wind shield is mounted on the front of the housing, and a coil is installed inside the wind shield. The front end of the coil is connected to a Laval nozzle, and a connecting pipe is connected to the side of the Laval nozzle. A chemical pipe is sleeved on the connecting pipe, and the other end of the chemical pipe is connected to the chemical pump. A ventilation slot is provided on the front of the wind shield. A spray gun is installed behind the coil, and a fuel pipe is connected to the spray gun. A pressure regulating valve is installed on the fuel pipe, and a fuel tank is connected to the other end of the fuel pipe. A pulse igniter is installed at the front end of the spray gun. An additive pipe is connected to the rear end of the coil. A through hole is opened at the connection between the housing and the windproof cover. An additive pump is installed on the additive pipe, and an additive storage tank is connected to the other end of the additive pipe. A transformer is installed at the bottom of the housing, and a remote control receiver is installed at the bottom of the housing. A fan is installed at the rear end inside the housing, and a power cord is connected to the transformer.

[0010] The connecting hardware includes a clamp and a quick-release clamp. The clamp is connected to the quick-release clamp and is installed on the windproof cover. The quick-release clamp is connected to the bottom of the bracket.

[0011] Preferably, the fuel tank is installed on the limiting sleeve in a detachable manner.

[0012] Preferably, the coil is conical in shape, and the end with the smaller diameter of the coil is located at the front end of the inside of the windproof cover.

[0013] Preferably, the opening of the Laval nozzle faces downward, and the interior of the Laval nozzle is connected to both the coil and the connecting pipe.

[0014] Preferably, the through holes are evenly distributed in an array with the axis of the windproof cover as the reference, and the inside of the shell is connected to the inside of the windproof cover through the through holes.

[0015] Preferably, the stall pressure of the additive pump is at least 2 MPa.

[0016] Preferably, the connecting wire and the power cord are connected by a female plug, and the voltage output by the battery is stepped down by a transformer.

[0017] Preferably, there are two sets of clamps distributed on the windproof cover, and the clamps are installed on the windproof cover in an adjustable and movable manner.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the fogging machine used in this agricultural drone:

[0019] (1) A power connection cable is provided and installed on the power interface of the drone body, so that the smoke machine body and the drone body can share the same battery. In this way, the smoke machine body can be mounted on the drone body without the need for an external smoke machine body dedicated battery, thereby reducing unnecessary carrying weight.

[0020] (2) It is equipped with a Laval nozzle and a coil. The coil is conical in shape. This allows for efficient heat exchange during heating, which enables the additives inside the coil to fully vaporize. In conjunction with the Laval nozzle, it can spray efficiently while making the smoke particles more dense.

[0021] (3) It is equipped with a pressure regulating valve and a fan. The pressure regulating valve controls the flow rate of the fuel tank, and the fan makes the combustion more complete, ensuring the quality of the sprayed smoke.

[0022] (4) Connecting hardware is provided to install the main body of the smoke machine on the bracket. At the same time, quick-release clamps are used to connect with the bracket, making the installation and disassembly of the device faster and enabling the handheld smoke machine to be used together. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of a smoke generator for plant protection drones according to the present invention;

[0024] Figure 2 This is a rear-view structural diagram of a smoke generator for a plant protection drone according to the present invention;

[0025] Figure 3 This is a schematic diagram of the installation structure of the pesticide storage tank for a plant protection drone according to the present invention;

[0026] Figure 4This is a schematic diagram of the main structure of a smoke generator drone for plant protection drones according to the present invention;

[0027] Figure 5 This is a schematic diagram of the main structure of a fogging machine for plant protection drones according to the present invention;

[0028] Figure 6 This is a schematic cross-sectional view of the main body of a fogging machine for plant protection drones according to the present invention;

[0029] Figure 7 This is a schematic diagram of the rearward structure of a smoke generator for a plant protection drone according to the present invention;

[0030] Figure 8 This is a schematic diagram of the power connection cable structure for a smoke generator used by an agricultural drone according to the present invention;

[0031] Figure 9 This is a cross-sectional schematic diagram of a Laval nozzle for a plant protection drone according to the present invention;

[0032] Figure 10 This invention relates to a smoke generator for plant protection drones. Figure 4 Schematic diagram of the structure at point A in the middle.

[0033] In the diagram: 101, Propulsion system; 102, Support; 103, Limiting sleeve; 104, Power interface; 105, Metal sheet; 106, Battery; 201, Chemical storage tank; 202, Chemical pump; 203, Additive storage tank; 204, Fuel tank; 301, Power take-off head; 302, Slot; 303, Connecting wire; 401, Housing; 402, Windproof cover; 403, Coil; 404, Pull 405. Spray nozzle; 406. Connecting pipe; 407. Chemical pipe; 408. Ventilation slot; 409. Spray gun; 410. Fuel pipe; 411. Pressure regulating valve; 412. Pulse igniter; 413. Additive pipe; 414. Through hole; 415. Additive pump; 416. Transformer; 417. Remote control receiver; 418. Fan; 501. Power cord; 502. Quick release clamp. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1-10The present invention provides a technical solution: a fogging machine for plant protection drones, including a drone host, a liquid storage body, a power connection cable, a fogging machine body and connecting hardware. The drone host is provided with a liquid storage body, the drone host is installed with a power connection cable, and the other end of the power connection cable is connected to the fogging machine body. The fogging machine body is installed with connecting hardware, and the other end of the connecting hardware is connected to the drone host.

[0036] The drone host includes a propulsion system 101, a bracket 102, a limiting sleeve 103, a power interface 104, a metal plate 105, and a battery 106. The bracket 102 is installed below the propulsion system 101, and the limiting sleeve 103 is provided on the bottom of the bracket 102. The power interface 104 is opened at the rear of the propulsion system 101, and the metal plates 105 are distributed on the power interface 104. The battery 106 is electrically connected to the power interface 104.

[0037] The liquid storage unit includes a drug storage tank 201, a drug pump 202, an auxiliary agent storage tank 203, and a fuel tank 204. The drug storage tank 201 is installed in the middle of the support 102, the drug pump 202 is installed at the bottom of the drug storage tank 201, the auxiliary agent storage tank 203 is installed at the bottom of the support 102, and the fuel tank 204 is installed inside the limiting sleeve 103.

[0038] The power connection cable includes a power take-up head 301, a slot 302 and a connecting wire 303. The power take-up head 301 has a slot 302 and the connecting wire 303 is connected to the power take-up head 301. The power take-up head 301 is installed on the metal sheet 105.

[0039] The main body of the smoke generator includes a housing 401, a wind shield 402, a coil 403, a Laval nozzle 404, a connecting pipe 405, a chemical pipe 406, a ventilation slot 407, a spray gun 408, a fuel pipe 409, a pressure regulating valve 410, a pulse igniter 411, an additive pipe 412, a through hole 413, an additive pump 414, a transformer 415, a remote control receiver 416, a fan 417, and a power cord 418. The wind shield 402 is mounted on the front of the housing 401, and a coil 403 is installed inside the wind shield 402. The front end of the coil 403 is connected to the Laval nozzle 404, and a connecting pipe 405 is connected to the side of the Laval nozzle 404. A chemical pipe 406 is sleeved on the connecting pipe 405, and the other end of the chemical pipe 406 is connected to the chemical pump 202. The wind shield 402 is located on the front... A ventilation slot 407 is provided. A spray gun 408 is provided behind the coil 403 and connected to a fuel pipe 409. A pressure regulating valve 410 is installed on the fuel pipe 409 and connected to a fuel tank 204 at the other end. A pulse igniter 411 is installed at the front end of the spray gun 408. An additive pipe 412 is connected to the rear end of the coil 403. A through hole 413 is provided at the connection between the housing 401 and the windproof cover 402. An additive pump 414 is installed on the additive pipe 412 and connected to an additive storage tank 203 at the other end. A transformer 415 is installed at the bottom of the housing 401 and a remote control receiver 416 is provided at the bottom of the housing 401. A fan 417 is installed at the rear end inside the housing 401 and a power cord 418 is connected to the transformer 415.

[0040] The connecting fittings include a clamp 501 and a quick-release clamp 502. The clamp 501 is connected to the quick-release clamp 502, and the clamp 501 is installed on the windproof cover 402. The quick-release clamp 502 is connected to the bottom of the bracket 102.

[0041] The fuel tank 204 is installed on the limiting sleeve 103 in a detachable manner.

[0042] The coil 403 is conical in shape, and the smaller diameter end of the coil 403 is located at the front end of the windproof cover 402.

[0043] The opening of the Laval nozzle 404 faces downward, and the interior of the Laval nozzle 404 is connected to both the coil 403 and the connecting pipe 405.

[0044] The through holes 413 are evenly distributed in an array with the axis of the windproof cover 402 as the reference, and the interior of the housing 401 is connected to the interior of the windproof cover 402 through the through holes 413.

[0045] The stall pressure of the additive pump 414 is at least 2 MPa.

[0046] The connecting wire 303 and the power cord 418 are connected by a female plug, and the voltage output by the battery 106 is stepped down by the transformer 415.

[0047] Two sets of clamps 501 are distributed on the windproof cover 402, and the clamps 501 are installed on the windproof cover 402 in an adjustable and movable manner.

[0048] The working principle of this embodiment is as follows: When using the fogging machine for this agricultural drone, firstly, the clamp 501 is installed onto the windproof cover 402. Then, the fogging machine body is installed onto the bracket 102 on the drone body using the quick-release clamp 502. Next, the connecting wire 303 is connected to the power cord 418 via the female plug. The slot 302 of the power take-up head 301 at the other end of the connecting wire 303 is aligned with the metal piece 105 on the power interface 104 and installed. After embedding it into the metal piece 105, the battery 106 is installed onto the power interface 104. Then, the pesticide tube 406 is installed onto the pesticide pump 202, the fuel tube 409 is connected to the fuel tank 204, and the additive tube 412 is installed onto the additive storage tank 203.

[0049] During spraying, the propulsion system 101 is activated for flight. After reaching the appropriate area, the fogging machine is remotely controlled via a remote controller. The remote receiver 416 receives a command to activate the pressure regulating valve 410, allowing fuel from the tank 204 to enter the spray gun 408 through the fuel pipe 409. Simultaneously, the pulse igniter 411 is activated for ignition, and the fan 417 is turned on to heat the coil 403. Next, the additive pump 414 draws material from the additive storage tank 203 and discharges it into the coil 403 for heating and vaporization. The vaporized smoke is then sprayed out at high speed through the Laval effect of the Laval nozzle 404. Subsequently, the agent pump 202 on the agent storage tank 201 discharges the agent into the Laval nozzle 404, spraying it along with the high-speed smoke onto the plants. Due to the high-speed jet, the agent is broken into tiny particles. Finally, when supplying power to the fogging machine, the voltage is first reduced by the transformer 415 before supplying power. This is the entire workflow. Furthermore, all content not described in detail in this specification is prior art known to those skilled in the art.

[0050] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fogging machine for agricultural drones, comprising a drone main unit, a liquid storage unit, a power connection cable, a fogging machine body, and connecting fittings, characterized in that: The drone host is equipped with the liquid storage body, the drone host is equipped with the power connection cable, and the other end of the power connection cable is connected to the smoke machine body. The smoke machine body is equipped with a connecting hardware, and the other end of the connecting hardware is connected to the drone host. The drone host includes a propulsion system (101), a bracket (102), a limiting sleeve (103), a power interface (104), a metal plate (105), and a battery (106). The bracket (102) is installed below the propulsion system (101), and the limiting sleeve (103) is provided on the bottom of the bracket (102). The power interface (104) is opened at the rear of the propulsion system (101), and the metal plates (105) are distributed on the power interface (104). The battery (106) is electrically connected to the power interface (104). The liquid storage body includes a drug storage tank (201), a drug pump (202), an auxiliary agent storage tank (203), and a fuel tank (204). The drug storage tank (201) is installed in the middle of the support (102), the drug pump (202) is installed at the bottom of the drug storage tank (201), the auxiliary agent storage tank (203) is installed at the bottom of the support (102), and the fuel tank (204) is installed inside the limiting sleeve (103). The power connection cable includes a power take-up head (301), a slot (302) and a connecting wire (303). The power take-up head (301) has a slot (302) and a connecting wire (303) is connected to the power take-up head (301). The power take-up head (301) is installed on the metal sheet (105). The main body of the smoke generator includes a housing (401), a wind shield (402), a coil (403), a Laval nozzle (404), a connecting pipe (405), a chemical pipe (406), a ventilation slot (407), a spray gun (408), a fuel pipe (409), a pressure regulating valve (410), a pulse igniter (411), an additive pipe (412), a through hole (413), an additive pump (414), a transformer (415), a remote control receiver (416), and a fan (417). The housing (401) includes a power cord (418), a windproof cover (402) is mounted on the front of the housing (401), and a coil (403) is installed inside the windproof cover (402). A Laval nozzle (404) is connected to the front end of the coil (403), and a connecting pipe (405) is connected to the side of the Laval nozzle (404). A chemical tube (406) is sleeved on the connecting pipe (405), and a chemical pump (202) is connected to the other end of the chemical tube (406). The windproof cover (402) has an opening on the front. The device has a ventilation slot (407), a spray gun (408) is located behind the coil (403), and a fuel pipe (409) is connected to the spray gun (408). A pressure regulating valve (410) is installed on the fuel pipe (409), and a fuel tank (204) is connected to the other end of the fuel pipe (409). A pulse igniter (411) is installed at the front end of the spray gun (408), and an additive pipe (412) is connected to the rear end of the coil (403). The housing (401) and A through hole (413) is provided at the connection of the wind shield (402), an auxiliary agent pump (414) is installed on the auxiliary agent pipe (412), and an auxiliary agent storage tank (203) is connected to the other end of the auxiliary agent pipe (412). A transformer (415) is installed at the bottom of the housing (401), and a remote control receiver (416) is provided at the bottom of the housing (401). A fan (417) is installed at the rear end inside the housing (401), and a power cord (418) is connected to the transformer (415). The connecting hardware includes a clamp (501) and a quick-release clamp (502). The clamp (501) is connected to the quick-release clamp (502), and the clamp (501) is installed on the windproof cover (402). The quick-release clamp (502) is connected to the bottom of the bracket (102).

2. The smoke generator for plant protection drones according to claim 1, characterized in that: The fuel tank (204) is installed on the limiting sleeve (103) in a detachable manner.

3. The smoke generator for plant protection drones according to claim 1, characterized in that: The coil (403) is conical in shape, and the end of the coil (403) with a smaller diameter is located at the front end of the windproof cover (402).

4. The smoke generator for plant protection drones according to claim 1, characterized in that: The opening of the Laval nozzle (404) is downward, and the interior of the Laval nozzle (404) is connected to both the coil (403) and the connecting pipe (405).

5. The smoke generator for plant protection drones according to claim 1, characterized in that: The through holes (413) are evenly distributed in an array with the axis of the windproof cover (402) as the reference, and the interior of the shell (401) is connected to the interior of the windproof cover (402) through the through holes (413).

6. The smoke generator for plant protection drones according to claim 1, characterized in that: The stall pressure of the additive pump (414) is at least 2 MPa.

7. The smoke generator for plant protection drones according to claim 1, characterized in that: The connecting wire (303) and the power line (418) are connected by a female plug, and the voltage output by the battery (106) is stepped down by a transformer (415).

8. The smoke generator for plant protection drones according to claim 1, characterized in that: Two sets of clamps (501) are distributed on the windproof cover (402), and the clamps (501) are installed on the windproof cover (402) in an adjustable and movable manner.

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