Mixing device for pesticide spraying of plant protection unmanned aerial vehicle

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a pesticide spraying mixing device for a plant protection unmanned aerial vehicle, which comprises a frame, a pesticide storage tank, a pesticide spraying pipe and a stirring mechanism, arms are arranged on two sides of the frame, propellers are connected to the ends of the arms to provide flight power, the pesticide storage tank is used for storing pesticide liquid, and the bottom of the pesticide storage tank is connected with a water pump. The water pump conveys pesticide liquid through the pesticide spraying pipe and sprays the pesticide liquid through the sprayer; the stirring mechanism is installed on the pesticide storage tank and comprises a driving part driven by wind power, a speed changing assembly and a spoiler, the driving part drives the spoiler to rotate through the speed changing assembly, the spoiler is composed of a base plate, a top plate and a spiral stirring blade, and vortex can be formed in the pesticide storage tank to achieve uniform mixing of pesticide liquid; the whole device drives the stirring mechanism to operate through airflow, power consumption is reduced, cruising ability and spraying uniformity are improved, and the device is suitable for application scenes with requirements for accuracy and high efficiency in pesticide spraying operation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to unmanned plane technical field, concretely relates to a kind of mixed device for pesticide spraying of plant protection unmanned plane. BACKGROUND

[0002] Plant protection unmanned plane is more and more widely used in agricultural field, it can carry pesticide by unmanned plane and carry out efficient spraying, greatly improve the efficiency of crop disease and insect control, reduce labor intensity.However, in actual operation process, the liquid medicine spraying device of plant protection unmanned plane needs to ensure that liquid medicine can be uniformly mixed to avoid the harm caused to crops by uneven pesticide spraying concentration.

[0003] In prior art, the liquid medicine mixing device of plant protection unmanned plane is mostly mixed by motor-driven stirring mechanism, this mode can realize the uniform mixing of liquid medicine to some extent, but also there are some shortcomings.For example, the motor operation of conventional mixing device during unmanned plane flight will consume additional power, thereby affecting the endurance of unmanned plane.Meanwhile, due to lack of effective dynamic mixing mechanism, liquid medicine is prone to stratification or precipitation phenomenon during flight, resulting in the decline of liquid medicine mixing uniformity.

[0004] In addition, although some devices attempt to utilize natural wind energy to drive stirring device, these devices are often difficult to balance wind energy utilization efficiency and mixing effect in design, resulting in unsatisfactory stirring effect, which is difficult to meet the requirements of precision agriculture on liquid medicine spraying quality.Therefore, the existing liquid medicine mixing technology of plant protection unmanned plane needs to be improved in energy efficiency and mixing uniformity. UTILITY MODEL CONTENTS

[0005] In view of the problems existing in prior art, the purpose of the utility model is to provide a kind of mixed device for pesticide spraying of plant protection unmanned plane, it can realize, by utilizing wind energy to drive stirring mechanism, realize the dynamic mixing of liquid medicine, both can reduce power consumption, and can improve the mixing uniformity of liquid medicine, to improve the operation efficiency and spraying quality of plant protection unmanned plane.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A kind of mixed device for pesticide spraying of plant protection unmanned plane, including rack, both sides of rack are symmetrically provided with machine arm, and one end of machine arm is provided with propeller;

[0008] Rack is installed with the storage tank for storing liquid medicine, the bottom of storage tank is provided with water pump, and the output end of water pump is provided with medicine spraying pipe;

[0009] Water pump transports the liquid medicine in storage tank to medicine spraying pipe, and sprays out through medicine spraying pipe;

[0010] The stirring mechanism is arranged on the medicine storage tank and is used for stirring the liquid medicine in the medicine storage tank.

[0011] The stirring mechanism comprises a driving member, a speed changing assembly and a disturbing member.

[0012] Further, the driving member comprises a central shaft, and blades are distributed at equal intervals around the central axis of the central shaft.

[0013] Further, the speed changing assembly comprises a driving gear connected to the bottom of the central shaft, and a driven gear is arranged on one side of the driving gear and engaged with the driving gear.

[0014] The bottom of the driven gear is provided with a transmission shaft, and the disturbing member is connected to the transmission shaft.

[0015] Further, the bottom of the central shaft is fixedly connected with a connecting head, and a first through hole is formed through the center of the upper end surface of the driving gear and matched with the connecting head.

[0016] Further, the disturbing member comprises a bottom disc and a top disc, and stirring blades are fixedly connected between the bottom disc and the top disc and distributed at equal intervals around the central axis of the transmission shaft.

[0017] The shape of the stirring blades is spiral.

[0018] Further, a threaded groove is formed in one end of the transmission shaft.

[0019] A second through hole is formed through the center of the side surface of the transmission shaft, the transmission shaft passes through the second through hole, one end of the transmission shaft abuts against the bottom disc, and a locking hole is formed through the center of the side surface of the bottom disc.

[0020] Further, machine legs are arranged on both sides of the bottom of the rack.

[0021] Further, spray heads are arranged at equal intervals along the length direction of the medicine spraying pipe.

[0022] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0023] The stirring mechanism is arranged in the medicine storage tank, and dynamic mixing of the liquid medicine during storage and flight is realized. The stirring mechanism drives the disturbing member to rotate by using air flow, adjusts the rotating speed through the speed changing assembly, and drives the spiral stirring blades to fully mix the liquid medicine. Compared with the traditional motor-driven stirring mode, the utility model drives by using wind energy, effectively reduces the power consumption of the unmanned aerial vehicle, improves the endurance, and is suitable for long-time flight tasks.

[0024] The design of the turbulence member in the stirring mechanism adopts a combination structure of a bottom disc, a top disc and a spiral stirring blade, can form vortex flow in the rotating process, and can stir and uniformly mix the pesticide liquid in the pesticide storage tank up and down, avoids the problem that the pesticide liquid is prone to stratification and precipitation in the traditional mixing device, and thus improves the uniformity of the sprayed pesticide liquid. Especially, the design of the spiral stirring blade can improve the mixing efficiency while reducing energy consumption through optimization of the fluid dynamics characteristics.

[0025] The variable speed assembly transmits power through the meshing of the driving gear and the driven gear, and ensures the stable rotation of the turbulence member. The blades in the driving member are designed in an arc shape, can efficiently capture the airflow generated in the flight process, convert it into mechanical energy, and transmit it to the turbulence member through the variable speed assembly, further optimizing the stirring efficiency and the stability of power transmission.

[0026] The spray heads on the pesticide spraying pipe are uniformly distributed along the length direction, can realize the atomization and spraying of the pesticide liquid, ensure the uniform coverage of the pesticide during the spraying process, and effectively improve the utilization rate and the control effect of the pesticide. At the same time, the pesticide spraying pipe is made of corrosion-resistant material, enhances the durability, is suitable for long-time use of various types of pesticide liquid, and meets the actual needs of precision agriculture. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic view of the utility model;

[0028] Figure 2 It is a structural schematic view of the stirring mechanism of the utility model;

[0029] Figure 3 It is a structural schematic view of the driving member of the utility model;

[0030] Figure 4 It is a structural schematic view of the variable speed assembly of the utility model;

[0031] Figure 5 It is a structural schematic view of the turbulence member of the utility model.

[0032] In the drawings, the component list represented by each reference numeral is as follows:

[0033] 1, rack; 11, arm; 12, propeller; 13, leg;

[0034] 2, pesticide storage tank;

[0035] 3, water pump;

[0036] 4, pesticide spraying pipe; 41, spray head;

[0037] 5, stirring mechanism;

[0038] 51, driving member; 511, center shaft; 5111, connecting head; 512, blade;

[0039] 52, variable speed assembly; 521, drive gear; 5211, first through hole; 522, driven gear; 523, transmission shaft; 5231, threaded groove;

[0040] 53, spoiler; 531, bottom disc; 5311, locking hole; 532, top disc; 5321, second through hole; 533, stirring blade. DETAILED DESCRIPTION

[0041] In order to make the purpose and advantages of the utility model more clear and apparent, the utility model is specifically described below in combination with embodiments. It should be understood that the following text is merely used to describe one or several specific embodiments of the utility model and does not strictly limit the scope of protection specifically requested by the utility model.

[0042] Referring to Figures 1-5 A kind of mixing device for pesticide spraying of plant protection unmanned plane, including frame 1, both sides of frame 1 are symmetrically provided with machine arm 11, one end of machine arm 11 is provided with propeller 12;Propeller 12 is used to provide flight power for plant protection unmanned plane, frame 1 realizes hovering, moving and steering etc. functions by the rotation of propeller 12;The top of frame 1 is equipped with the storage tank 2 for storing liquid medicine, the outside of storage tank 2 is equipped with filling hole, for injecting the liquid medicine to be sprayed into inside;The bottom of storage tank 2 is fixedly connected with water pump 3, the output end of water pump 3 is connected with spray tube 4 by hose, spray tube 4 is uniformly provided with multiple spray heads 41 along its length direction, for spraying liquid medicine in atomized form to crops.

[0043] Referring to Figure 1 The bottom of frame 1 is provided with machine leg 13 on both sides, machine leg 13 is used to provide support when unmanned plane is parked, guarantee the stability of unmanned plane on ground;The material of machine leg 13 selects lightweight high-strength alloy, to reduce overall weight while improving carrying capacity.

[0044] Referring to Figures 2-5 The top of storage tank 2 is equipped with stirring mechanism 5, stirring mechanism 5 is used to uniformly stir the liquid medicine in the inside of storage tank 2, to prevent stratification or precipitation of liquid medicine during storage and flight;Stirring mechanism 5 includes driving part 51, variable speed assembly 52 and spoiler 53;Driving part 51 is driven by the airflow generated during flight, the mechanical energy of airflow is transmitted to spoiler 53 by variable speed assembly 52, so as to drive spoiler 53 to rotate and stir in the inside of storage tank 2.

[0045] Referring to Figure 3The driving member 51 comprises a central shaft 511, and blades 512 are distributed equidistantly around the central shaft 511; the cross section of the blade 512 is designed as an arc shape, which can effectively capture the airflow and convert it into rotational kinetic energy, thereby improving the driving efficiency; the bottom of the central shaft 511 is fixedly connected to the driving gear 521 of the speed change assembly 52 through the connecting head 5111.

[0046] Referring to Figures 2-5 The speed change assembly 52 comprises the driving gear 521 and the driven gear 522; the driving gear 521 is installed at the bottom of the central shaft 511, and a first through hole 5211 is formed in the center of the upper end face of the driving gear 521, which is used for cooperating with the connecting head 5111; the driven gear 522 is engaged with the driving gear 521; the bottom of the driven gear 522 is fixedly connected with a transmission shaft 523, and the transmission shaft 523 transmits power to the turbulence member 53 through rotation; this design can adjust the rotating speed of the driving member 51, and ensure the stability and efficiency of the stirring process.

[0047] Referring to Figures 3-4 One end of the transmission shaft 523 is provided with a threaded groove 5231, which is used for providing a stronger fixing effect when the transmission shaft 523 is connected with the bottom disc 531; a second through hole 5321 is formed in the center of the side surface of the transmission shaft 523, the transmission shaft 523 passes through the top disc 532 and the bottom disc 531 through the second through hole 5321, and is fixed on the bottom disc 531 through the locking hole 5311.

[0048] Referring to Figure 5 The turbulence member 53 comprises the bottom disc 531, the top disc 532 and the stirring blade 533; a plurality of stirring blades 533 are uniformly distributed between the bottom disc 531 and the top disc 532; the stirring blade 533 is designed as a spiral shape, which can produce a lifting effect on the liquid medicine when rotating, so as to form a vortex in the liquid medicine in the medicine storage tank 2, thereby realizing the full mixing of the liquid medicine; the spiral stirring blade 533 improves the stirring efficiency and can adapt to the mixing requirements of liquid medicine with different viscosities.

[0049] Referring to Figure 1 A plurality of spray heads 41 are equidistantly arranged along the length direction of the medicine spraying pipe 4; the atomization design of the spray head 41 can uniformly distribute the liquid medicine on the surface of crops, thereby improving the spraying effect; the medicine spraying pipe 4 is made of high-strength corrosion-resistant material, which can adapt to the corrosion environment of long-time use and various liquid medicines.

[0050] The working principle of the utility model is as follows:

[0051] In use, the liquid medicine to be sprayed is injected into the medicine storage tank 2 through the filling hole of the medicine storage tank 2 according to a specific mixing ratio;

[0052] In the process of spraying liquid medicine, the liquid medicine in the medicine storage tank 2 is delivered to the medicine spraying pipe 4 by the water pump 3, and is atomized and sprayed out through the spray head 41 installed on the medicine spraying pipe 4;

[0053] During the flying process of the machine body, the airflow blows the driving member 51 to rotate, the driving member 51 drives the driving gear 521 located at the bottom of the driving member 51 to synchronously rotate, the driving gear 521 and the driven gear 522 are mutually engaged, and then the driven gear 522 synchronously rotates with the rotation of the driving gear 521, when the driven gear 522 rotates, the turbulence member 53 installed on the transmission shaft 523 is driven to rotate;

[0054] The spiral stirring blade 533 can lift the liquid medicine in the medicine storage tank 2 during the rotation process, make the liquid medicine in the medicine storage tank 2 flow, and then make the liquid medicine more uniformly mixed, and the rotation of the turbulence member 53 driven by wind energy can reduce the waste of electric quantity.

[0055] The above is only the preferred embodiment of the present application, it should be pointed out that, for the ordinary skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. A mixing device for pesticide spraying by a crop protection drone, characterized in that: Including frame (1), both sides of frame (1) are symmetrically provided with machine arm (11), one end of machine arm (11) is provided with propeller (12); Frame (1) is provided with medicine storage tank (2) for storing liquid medicine, the bottom of medicine storage tank (2) is provided with water pump (3), the output end of water pump (3) is provided with medicine spraying pipe (4); Water pump (3) delivers the liquid medicine in medicine storage tank (2) to medicine spraying pipe (4), and sprays out through medicine spraying pipe (4); The agitating mechanism (5) is installed on the medicine storage tank (2), and the agitating mechanism (5) is used for stirring the liquid medicine in the medicine storage tank (2); The agitating mechanism (5) includes a driving member (51), a speed changing assembly (52) and a turbulence member (53), the driving member (51) drives the turbulence member (53) to rotate through the speed changing assembly (52) under the driving of wind force, and the turbulence member (53) stirs the liquid medicine in the medicine storage tank (2) in the process of rotating.

2. The mixing device for pesticide spraying of the plant protection unmanned aerial vehicle according to claim 1, characterized in that: The driving member (51) includes a central shaft (511), and blades (512) are distributed equidistantly around the central shaft (511) on the outer side of the central shaft (511), and the cross section of the blade (512) is arc-shaped.

3. The mixing device for pesticide spraying of the plant protection unmanned aerial vehicle according to claim 2, characterized in that: The speed changing assembly (52) includes a driving gear (521) connected to the bottom of the central shaft (511), and a driven gear (522) is arranged on one side of the driving gear (521) and engaged with the driving gear (521); The bottom of the driven gear (522) is provided with a transmission shaft (523), and the turbulence member (53) is connected to the transmission shaft (523).

4. The mixing device for pesticide spraying of the plant protection unmanned aerial vehicle according to claim 3, characterized in that: The bottom of the central shaft (511) is fixedly connected with a connecting head (5111), and a first through hole (5211) is formed through the center of the upper end surface of the driving gear (521) and matched with the connecting head (5111).

5. The mixing device for pesticide spraying of the plant protection unmanned aerial vehicle according to claim 3, characterized in that: The turbulence member (53) includes a bottom disc (531) and a top disc (532), and stirring blades (533) are fixedly connected between the bottom disc (531) and the top disc (532), and the stirring blades (533) are distributed equidistantly around the central axis of the transmission shaft (523). The shape of the stirring blade (533) is spiral.

6. The mixing device for pesticide spraying of a plant protection unmanned aerial vehicle according to claim 5, characterized in that: One end of the transmission shaft (523) is provided with a threaded groove (5231). A second through hole (5321) is formed through the center of the side surface of the transmission shaft (523), the transmission shaft (523) passes through the second through hole (5321), one end of the transmission shaft (523) abuts against the bottom disc (531), and a locking hole (5311) is formed through the center of the side surface of the bottom disc (531).

7. The mixing device for pesticide spraying of a plant protection unmanned aerial vehicle according to claim 1, characterized in that: Both sides of the bottom of the frame (1) are provided with machine legs (13).

8. The mixing device for pesticide spraying of a plant protection unmanned aerial vehicle according to claim 1, characterized in that: The medicine spraying pipe (4) is provided with spray heads (41) equidistantly along the length direction of the medicine spraying pipe (4).

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