CN211064792U - An unmanned aerial vehicle and its spraying device - Google Patents

Abstract

The utility model belongs to the technical field of plant protection unmanned aerial vehicles, in particular to an unmanned aerial vehicle and a spraying device thereof, aiming at the existing unmanned aerial vehicle spraying device that the total number of mist droplets generated by atomization is obviously insufficient or the mist droplets are small and easy to Drifting due to the influence of the wind field generated by the rotor of the drone, the settlement rate of the liquid medicine on the crop leaves is not high, it is difficult to ensure the control effect, and the spraying range is small, the following scheme is proposed, which includes the drone The drone rack is equipped with a remote control starting device, a fuel tank, a combustion chamber, a carburetor power system, a remote ignition device, a precise control system for the liquid medicine, a drug discharge pipeline and a pressure nozzle, and the drug discharge pipeline and the combustion chamber are provided with They are all connected to the same drug catheter. The utility model solves the problem of serious volatilization and drift of the medicinal liquid after the mist droplets are miniaturized, ensures the effectiveness of prevention and control, avoids the elegant waste of medicinal liquid, reduces environmental pollution, can effectively expand the spraying range and improve the spraying efficiency.

Description

An unmanned aerial vehicle and its spraying device

technical field

The utility model relates to the technical field of plant protection unmanned aerial vehicles, in particular to an unmanned aerial vehicle and a spraying device thereof.

Background technique

With the development of science and technology, drones are usually used for pesticide application when large-scale pesticide application is required for agricultural planting. The drone can be operated and applied by remote control, and is equipped with a medicine storage box and an atomizer. At present, the atomizers for plant protection drones mainly include direct pressure nozzles and centrifugal nozzles. The atomization particle size of the direct pressure nozzles is too large, usually above 120 microns, and the total number of droplets generated by the atomization of the unit volume of liquid medicine is obviously insufficient. , Although the atomization particle size of the centrifugal nozzle can be reduced to less than 90 microns, the fine droplets are easily affected by the wind field generated by the UAV rotor and drift. Effect. Plant protection drones are limited by their own carrying capacity. The amount of liquid medicine per mu is usually controlled within 1 kilogram.

The existing UAV spray device has the obvious shortage of the total number of droplets generated by atomization, or the droplets are easily drifted due to the influence of the wind field generated by the UAV rotor after being reduced in size, and the sedimentation rate of the liquid medicine on the crop leaves is not high. It is difficult to ensure the control effect, and the spraying range is small.

Utility model content

The purpose of the utility model is to solve the problem that the total number of droplets generated by atomization in the existing drone spray device is obviously insufficient or the droplets are easily drifted due to the influence of the wind field generated by the rotor of the drone after the droplets are miniaturized. The problem of low sedimentation rate on crop leaves is difficult to ensure the control effect, and the spraying range is small. Therefore, an unmanned aerial vehicle and its spraying device are proposed.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A spray device includes a drone frame, and the drone frame is provided with a remote control starting device, a fuel tank, a combustion chamber, a carburetor power system, a remote ignition device, a precise control system for medicinal liquid, a medicinal discharge pipeline and a pressure nozzle , the medicine discharge pipeline and the combustion chamber are connected with the same medicine guide pipe, the combustion chamber is located inside the medicine guide pipe, the pressure nozzle is arranged inside the medicine guide pipe, the outlet of the medicine guide pipe is threadedly connected with a connecting pipe, and the connecting pipe A hose is connected with the hose, a nozzle is connected with the hose, and a support rod is fixedly installed on the connecting pipe;

The outer side of the spray head is symmetrically and fixedly installed with two rotating shaft rods, one of the two rotating shaft rods is rotatably connected with the support rod, and the other rotating shaft rod of the two rotating shaft rods is fixedly installed with a long rod, which is rotatably installed in the connecting pipe There is a blowing fan, and a worm is rotatably installed in the connecting pipe.

Preferably, a polygonal rod is fixedly installed at one end of the worm, a circular plate is fixedly installed at one end of the polygonal rod away from the connecting pipe, an end of a thrust rod is movably installed at the eccentric position of the circular plate, and the other end of the thrust rod is movable with the long rod Connection, the thrust rod plays the role of force transmission.

Preferably, a welding rod is fixedly installed in the connecting pipe, a rotating rod is fixedly installed at the bottom end of the blowing fan, the rotating rod is rotatably connected with the welding rod, and the welding rod supports the rotating rod.

Preferably, a worm wheel is fixedly installed at the bottom end of the rotating rod, the worm is engaged with the worm wheel, and the rotating rod drives the worm to rotate through the worm wheel.

Preferably, a welding block is fixedly installed on one side of the connecting pipe, a circular hole is formed on the welding block, the polygonal rod is movably connected with the circular hole, a fixing screw is threadedly connected to the welding block, and the fixing screw is matched with the polygonal rod to fix Screws are used to fix the polygonal rod.

Preferably, a twisting plate is fixedly installed on the top of the fixing screw, a positioning pin is movably connected to the twisting plate, a plurality of positioning grooves are opened on the top of the welding block, the positioning pins are matched with the positioning grooves, and the positioning pins are inserted into the positioning grooves The fixing screws can be fixed inside.

Preferably, the top end of the positioning pin is provided with one end of the wire rope, the other end of the wire rope is fixedly connected with the welding block, the bottom end of the positioning pin is embedded with a first magnet, the positioning groove is provided with a second magnet, and the first magnet is connected to the welding block. The second magnets attract each other, and the attraction between the first magnet and the second magnet can increase the stability of the positioning pin.

Preferably, a first movable head is fixedly installed at an eccentric position of the long rod, a second movable head is fixedly installed at an eccentric position of the circular plate, and both the first movable head and the second movable head are movably connected with the thrust rod, and the first movable head is The movable head and the second movable head can play the role of transmission force.

The utility model also provides an unmanned aerial vehicle, comprising an unmanned aerial vehicle body and a medicine storage box, and the spray device is installed at the bottom of the unmanned aerial vehicle body.

Compared with the prior art, the advantages of the present utility model are:

(1) This scheme controls the spray of the liquid medicine from the pressure nozzle through the precise control system of the liquid medicine, and mixes it with the smoke sprayed out of the pipe, and at the same time, it is instantly vaporized into a smoke shape. The application of this thermal fog machine can effectively ensure the atomization of a unit volume of chemical liquid to produce a sufficient number of chemical liquid droplets, and can solve the serious problem of liquid chemical volatilization and drift after the droplets are miniaturized, ensuring the effectiveness of prevention and control, avoiding The liquid medicine is elegant and wasteful, while reducing environmental pollution.

(2) In this scheme, the "blowing fan" is rotated by the high-speed medicinal mist airflow, so that the worm drives the circular plate to rotate through the polygonal rod, and the circular plate pushes the long rod through the thrust rod to turn back and forth with the corresponding rotating shaft rod as the pivot point, so that the The rotating shaft rod drives the nozzle to turn back and forth, which can expand the spraying range and improve the spraying efficiency.

(3) When this scheme does not need to expand the spraying range, fix the polygonal rod by twisting the fixing screw, so that the high-speed drug mist airflow will not blow the "blowing fan" to rotate, so that the nozzle will not turn over, which can adapt to different Territory use.

(4) In this solution, the fixing screw can be fixed by inserting the positioning pin into the positioning groove, so as to prevent the fixing screw from being reversed.

(5) In this solution, the stability of the positioning pin can be increased by attracting the first magnet and the second magnet, so as to prevent the positioning pin from being separated from the positioning groove due to working vibration.

The utility model solves the problem of serious volatilization and drift of the medicinal liquid after the mist droplets are miniaturized, ensures the effectiveness of prevention and control, avoids the elegant waste of medicinal liquid, reduces environmental pollution, can expand the spraying range and improve the spraying efficiency.

Description of drawings

Fig. 1 is the structural representation of a kind of spray device proposed by the utility model;

Fig. 2 is a schematic diagram of the connection structure of a medicine guiding pipe, a connecting pipe, a hose, a spray head, etc. of a spray device proposed by the utility model;

Fig. 3 is the structural representation of part A of a kind of spray device proposed by the utility model;

Fig. 4 is the structural representation of part B of a kind of spray device proposed by the utility model;

Fig. 5 is the left-view structural schematic diagram of the circular plate, the thrust rod, the long rod and the polygonal rod in Fig. 3 proposed by the utility model;

6 is a schematic top view of the structure of the thrust rod, the long rod, the spray head, the rotating shaft rod, and the support rod in FIG. 2 proposed by the utility model;

FIG. 7 is a schematic three-dimensional structure diagram of a welding block of a spray device proposed by the utility model;

FIG. 8 is a top-view structural schematic diagram of an unmanned aerial vehicle and a medicine storage box proposed by the present invention.

In the picture: 1 drone rack, 2 remote control starting device, 3 fuel tank, 4 combustion chamber, 5 carburetor power system, 6 remote ignition device, 7 liquid medicine precision control system, 8 medicine discharge pipeline, 9 pressure nozzle, 10 connecting pipes, 11 hoses, 12 nozzles, 13 support rods, 14 drug guide pipes, 15 thrust rods, 16 welding blocks, 17 blowing fans, 18 rotating rods, 19 worm gears, 20 worms, 21 circular plates, 22 long type Rod, 23 first movable head, 24 polygonal rod, 25 round hole, 26 fixing screw, 27 torsion plate, 28 positioning pin, 29 positioning groove, 30 supporting rod, 31 rotating shaft rod, 32 medicine storage box, 33 steel wire rope, 34 No. Two active heads.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

1-7, a spray device, including a drone frame 1, the drone frame 1 is provided with a remote control starting device 2, a fuel tank 3, a combustion chamber 4, a carburetor power system 5, a remote ignition device 6, The liquid medicine precise control system 7, the medicine discharge pipeline 8 and the pressure nozzle 9, the medicine discharge pipeline 8 and the combustion chamber 4 are connected with the same medicine guide pipe 14, the combustion chamber 4 is located inside the medicine guide pipe 14, and the pressure nozzle 9 is arranged inside the medicine guiding tube 14, the outlet of the medicine guiding tube 14 is threadedly connected with a connecting tube 10, the connecting tube 10 is connected with a hose 11, the hose 11 is connected with a spray head 12, and the connecting tube 10 is fixedly installed with a support Rod 13, two rotating shaft rods 31 are symmetrically and fixedly installed on the outside of the spray head 12, one of the two rotating shaft rods 31 is rotatably connected with the support rod 13, and the other rotating shaft rod 31 of the two rotating shaft rods 31 is fixedly installed with In the long rod 22, a blowing fan 17 is rotatably installed in the connecting pipe 10, a worm 20 is rotatably installed in the connecting pipe 10, and the axes of the two rotating shaft rods 31 are located on the same horizontal axis.

In this embodiment, a polygonal rod 24 is fixedly installed at one end of the worm 20 , a circular plate 21 is fixedly installed at one end of the polygonal rod 24 away from the connecting pipe 10 , and one end of the thrust rod 15 is movably installed at the eccentric position of the circular plate 21 . The other end of the rod is movably connected with the long rod 22, and the thrust rod 15 plays the role of force transmission.

In this embodiment, a welding rod 30 is fixedly installed in the connecting pipe 10 , a rotating rod 18 is fixedly installed at the bottom end of the blowing fan 17 , the rotating rod 18 is rotatably connected with the welding rod 30 , and the welding rod 30 supports the rotating rod 18 effect.

In this embodiment, a worm wheel 19 is fixedly installed at the bottom end of the rotating rod 18 , the worm screw 20 is engaged with the worm wheel 19 , and the rotating rod 18 drives the worm screw 20 to rotate through the worm wheel 19 .

In this embodiment, a welding block 16 is fixedly installed on one side of the connecting pipe 10, a circular hole 25 is formed on the welding block 16, the polygonal rod 24 is movably connected with the circular hole 25, and the welding block 16 is threadedly connected with a fixing screw 26 for fixing The screw 26 is matched with the polygonal rod 24 , and the fixing screw 26 is used to fix the polygonal rod 24 .

In this embodiment, a twisting plate 27 is fixedly installed on the top of the fixing screw 26 , a positioning pin 28 is movably connected to the twisting plate 27 , a plurality of positioning grooves 29 are opened on the top of the welding block 16 , the positioning pins 28 and the positioning grooves 29 Matchingly, the positioning pin 28 can be inserted into the positioning groove 29 to fix the fixing screw.

In this embodiment, the top end of the positioning pin 28 is provided with one end of the wire rope 33, the other end of the wire rope 33 is fixedly connected to the welding block 16, the bottom end of the positioning pin 28 is embedded with a first magnet, and the positioning groove is provided with a second magnet , the first magnet and the second magnet attract each other, and the attraction of the first magnet and the second magnet can increase the stability of the positioning pin.

In this embodiment, the first movable head 23 is fixedly installed at the eccentric position of the long rod 22, and the second movable head 34 is fixedly installed at the eccentric position of the circular plate 21. Both the first movable head 23 and the second movable head 34 are proportional to the thrust force The rod 15 is movably connected, and the first movable head and the second movable head can play the role of transmission force.

Referring to FIG. 8, a drone includes a drone body and a medicine storage box 32, and a spray device is installed at the bottom of the drone body.

In this embodiment, when in use, the drone frame 1 is installed on the drone body, the electrical equipment is connected to the power supply, and the medicine discharge pipeline 8 is connected with the medicine storage box 32 on the drone. The fuel is mixed with air through the carburetor power system 5 to form a combustible gas mixture, and then enters the combustion chamber 4. The combustible gas mixture is ignited and burned in the combustion chamber 4 to form high-temperature and high-pressure gas, which is sprayed out of the tube at a high speed, and the liquid medicine is accurate The control system 7 controls the liquid medicine to be sprayed out from the pressure nozzle 9 to mix with the smoke sprayed to the outside of the pipe, and at the same time, it is instantly vaporized into a smoke shape. The application of this thermal fog machine can effectively ensure the atomization of a unit volume of chemical liquid to produce a sufficient number of chemical liquid droplets, and can solve the serious problem of liquid chemical volatilization and drift after the droplets are miniaturized, ensuring the effectiveness of prevention and control, avoiding The liquid medicine is elegant and wasteful, and at the same time, environmental pollution is reduced, and the ecological benefits are remarkable. This thermal fog machine is equipped with functional additives, which can reduce the amount of chemical liquid per mu to less than 0.5 kg, and increase the control area per flight to more than 30 mu. For high-stalk crops (such as corn, sorghum), plant protection drones cannot The liquid medicine is sprayed to the middle and lower parts of the crops. The modified hot fog machine uses the new atomization technology to evenly spray the liquid medicine to all parts of the crops. The rotation of the moving fan 17 drives the rotating rod 18 to rotate. Due to the worm gear 19 is provided, the rotating rod 18 drives the worm 20 to rotate, the worm 20 drives the circular plate 21 to rotate through the polygonal rod 24, the circular plate 21 moves back and forth through the thrust rod 15, and the thrust rod 15 Push the long rod 22 to flip back and forth with the corresponding rotating shaft rod 31 as the pivot point, so that the rotating shaft rod 31 drives the nozzle 12 to flip back and forth, which can expand the spraying range and improve the spraying efficiency. The fixing screw 26 is moved to the direction close to the polygonal rod 24 to fix the polygonal rod 24, so that the medicinal mist gas will not blow the blowing fan 17 to rotate, so that the nozzle 12 will not turn over, which can be used in different regions.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (7)

1. A spraying device comprises an unmanned rack (1), wherein a remote control starting device (2), an oil tank (3), a combustion chamber (4), a carburetor power system (5), a remote ignition device (6), a liquid medicine precise control system (7), a liquid medicine outlet pipeline (8) and a pressure nozzle (9) are arranged on the unmanned rack (1), and the spraying device is characterized in that the liquid medicine outlet pipeline (8) and the combustion chamber (4) are both communicated with a same medicine guide pipe (14), the combustion chamber (4) is positioned inside the medicine guide pipe (14), the pressure nozzle (9) is arranged inside the medicine guide pipe (14), a connecting pipe (10) is in threaded connection with an outlet of the medicine guide pipe (14), a hose (11) is communicated with the connecting pipe (10), a nozzle (12) is communicated with the hose (11), and a support rod (13) is fixedly arranged on the connecting pipe (10);

two rotating shaft rods (31) are symmetrically and fixedly installed on the outer side of the spray head (12), one rotating shaft rod (31) of the two rotating shaft rods (31) is rotatably connected with the supporting rod (13), the other rotating shaft rod (31) of the two rotating shaft rods (31) is fixedly provided with a long rod (22), the connecting pipe (10) is rotatably provided with a blowing fan (17), and the connecting pipe (10) is rotatably provided with a worm (20); a polygonal rod (24) is fixedly installed at one end of the worm (20), a circular plate (21) is fixedly installed at one end, far away from the connecting pipe (10), of the polygonal rod (24), one end of a thrust rod (15) is movably installed at the eccentric position of the circular plate (21), and the other end of the thrust rod (15) is movably connected with a long rod (22); fixed mounting has welding rod (30) in connecting pipe (10), and the bottom fixed mounting who blows fan (17) has dwang (18), and dwang (18) rotate with welding rod (30) and are connected.

2. A spraying device according to claim 1, characterized in that a worm wheel (19) is fixedly mounted at the bottom end of the rotating rod (18), and the worm (20) is meshed with the worm wheel (19).

3. The spraying device as claimed in claim 1, wherein a welding block (16) is fixedly mounted on one side of the connecting pipe (10), a round hole (25) is formed in the welding block (16), the polygonal rod (24) is movably connected with the round hole (25), a fixing screw (26) is connected to the welding block (16) in a threaded manner, and the fixing screw (26) is matched with the polygonal rod (24).

4. The spraying device according to claim 3, characterized in that a twisting plate (27) is fixedly mounted at the top end of the fixing screw (26), a positioning pin (28) is movably connected to the twisting plate (27), a plurality of positioning grooves are formed in the top of the welding block (16), and the positioning pin (28) is matched with the positioning groove (29).

5. The spraying device as claimed in claim 4, characterized in that one end of a steel wire rope (33) is arranged at the top end of the positioning pin (28), the other end of the steel wire rope (33) is fixedly connected with the welding block (16), a first magnet is embedded in the bottom end of the positioning pin (28), a second magnet is arranged in the positioning groove, and the first magnet and the second magnet attract each other.

6. A spraying device according to claim 1, characterized in that the eccentric position of the elongated rod (22) is fixedly provided with a first movable head (23), the eccentric position of the circular plate (21) is fixedly provided with a second movable head (34), and the first movable head (23) and the second movable head (34) are movably connected with the thrust rod (15).

7. An unmanned aerial vehicle comprising an unmanned aerial vehicle body and a pesticide box (32), wherein the spraying device is installed at the bottom of the unmanned aerial vehicle body, and the spraying device is as claimed in any one of claims 1 to 6.

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