CN214356704U

CN214356704U - Plant protection unmanned aerial vehicle

Info

Publication number: CN214356704U
Application number: CN202023147823.7U
Authority: CN
Inventors: 孟祥�; 舒展; 农贵升
Original assignee: SZ DJI Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-10-08
Anticipated expiration: 2030-12-23

Abstract

The utility model provides a plant protection unmanned aerial vehicle, which comprises a movable platform body, a spraying assembly, a water tank assembly and a control assembly; the spraying assembly is arranged on the movable platform body; the water tank assembly is arranged on the movable platform body; the control assembly is used for controlling the flow of liquid in a first water tank of the water tank assembly to the connecting pipe of the water tank assembly and the flow of liquid in a second water tank of the water tank assembly to the connecting pipe; the water tank assembly comprises a first water tank, a second water tank, a connecting pipe, a first control valve and a second control valve; the connecting pipe is used for guiding out and mixing the liquid in the first water tank and the second water tank and conveying the mixed liquid to the spraying assembly; and the first control valve and the second control valve are used for respectively controlling the flow of the liquid in the first water tank to the connecting pipe and the flow of the liquid in the second water tank to the connecting pipe in response to the control signal of the control assembly. This plant protection unmanned aerial vehicle can control the flow of each water tank outflow liquid in the water tank set spare.

Description

Plant protection unmanned aerial vehicle

Technical Field

The utility model relates to a spraying equipment technical field especially relates to a plant protection unmanned aerial vehicle.

Background

The water tank is one of the important loads that is used for plant protection unmanned aerial vehicle to spray, and along with the expansion of unmanned aerial vehicle load, the capacity of water tank is also expanding constantly. The enlargement of water tank capacity can lead to the quality of water tank more and more overweight certainly, for the convenience of user's plug water tank to alleviate the capacity of single water tank, the plant protection unmanned aerial vehicle of two water tanks should be transported and produced. However, current plant protection unmanned aerial vehicle's of two water tanks water tank set spare, the structure is reasonable inadequately, is difficult to the flow of each water tank outflow liquid in the accurate control water tank set spare, and the practicality is not enough.

SUMMERY OF THE UTILITY MODEL

The utility model provides a plant protection unmanned aerial vehicle aims at realizing the flow that each water tank flows out liquid among the control water tank set spare.

The utility model provides a plant protection unmanned aerial vehicle, include:

a movable platform body;

the spraying assembly is arranged on the movable platform body;

the water tank assembly is arranged on the movable platform body;

a control assembly for controlling a flow of liquid in a first tank of the tank assembly to a connection pipe of the tank assembly and a flow of liquid in a second tank of the tank assembly to the connection pipe; wherein the water tank assembly comprises:

a first water tank and a second water tank;

the connecting pipe is used for guiding out and mixing the liquid in the first water tank and the liquid in the second water tank and conveying the mixed liquid to the spraying assembly;

and the first control valve and the second control valve are used for respectively controlling the flow of the liquid in the first water tank to the connecting pipe and the flow of the liquid in the second water tank to the connecting pipe in response to the control signal of the control component.

The utility model discloses an among the plant protection unmanned aerial vehicle, the connecting pipe including be used for with the first drain pipe of first water tank intercommunication, be used for with the second drain pipe of second water tank intercommunication and being used for mixing the liquid that first drain pipe flows reaches the liquid that the second drain pipe flows and the liquid after will mixing to the hybrid tube that spray assembly carried.

The utility model discloses an among the plant protection unmanned aerial vehicle, first control valve set up in first drain pipe, the second control valve set up in the second drain pipe.

In the plant protection unmanned aerial vehicle of the present invention, the first control valve is used for controlling the flow rate of the liquid in the first water tank flowing to the mixing pipe through the first liquid outlet pipe according to the control signal; and the second control valve is used for controlling the flow of the liquid in the second water tank flowing to the mixing pipe through the second liquid outlet pipe according to the control signal.

The utility model discloses an among the plant protection unmanned aerial vehicle, first water tank with the second water tank respectively with the connection can be dismantled to the connecting pipe.

The utility model discloses an among the plant protection unmanned aerial vehicle, first control valve and/or the second control valve includes the automatically controlled valve.

The utility model discloses an among the plant protection unmanned aerial vehicle, automatically controlled valve includes solenoid valve or motorised valve.

The utility model discloses an among the plant protection unmanned aerial vehicle, be equipped with coupling assembling on first water tank and the second water tank respectively, first water tank perhaps the second water tank passes through coupling assembling with the connecting pipe is connected.

The utility model discloses an among the plant protection unmanned aerial vehicle, coupling assembling includes:

and the one-way valve is used for controlling the first water tank and/or the second water tank to be communicated with the connecting pipe.

In the plant protection unmanned aerial vehicle of the present invention, the control assembly is configured to send a control signal to the first control valve and the second control valve of the water tank assembly; the control signal is used for enabling the first control valve and the second control valve to respectively control the flow of the liquid in the first water tank flowing to the connecting pipe and the flow of the liquid in the second water tank flowing to the connecting pipe, so that the liquid flowing to the connecting pipe is mixed in the connecting pipe and then is conveyed to the spraying assembly.

The utility model provides a plant protection unmanned aerial vehicle, the flow of liquid flow direction connecting pipe in the first water tank of control assembly's control signal control can be responded to the first control valve of its water tank subassembly, and the flow of liquid flow direction connecting pipe in the second water tank can be responded to control assembly's control signal control to liquid mixes the proportion of mixing in the connecting pipe in control first water tank and the second water tank, and the practicality is strong.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure of embodiments of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic view showing a structure of a conventional water tank assembly;

fig. 2 is a schematic structural diagram of a movable platform according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a movable platform according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a water tank assembly according to an embodiment of the present invention;

fig. 5 is a schematic flowchart of a control method for a water tank assembly according to an embodiment of the present invention.

Description of reference numerals:

1000. a movable platform;

101. a movable platform body; 1011. a body; 1012. a horn; 1013. a power system; 1014. a propeller; 1015. a power motor; 102. a spraying device; 103. a control component;

100. a water tank assembly;

10. a first water tank; 20. a second water tank;

30. a connecting pipe; 31. a first liquid outlet pipe; 32. a second liquid outlet pipe; 33. a mixing tube;

40. a first control valve; 50. a second control valve;

60. a connecting assembly; 61. a one-way valve; 61a, a first one-way valve; 61b, a second one-way valve;

200. a spray assembly; 201. a nozzle mechanism; 202. a catheter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The utility model discloses an inventor discovers, and the water tank is one of the important load that is used for agricultural unmanned aerial vehicle to spray, along with the expansion of agricultural unmanned aerial vehicle load, the capacity of water tank is also expanding on a continuous basis. The enlargement of the capacity of the water tank inevitably leads to an increasing weight of the water tank. In order to facilitate the user to plug and pull the water tanks and reduce the capacity of a single water tank, the agricultural unmanned aerial vehicle with double water tanks is produced.

Traditional agricultural unmanned aerial vehicle of two water tanks, the confluence of two water tank liquid is realized through the principle of linker. Referring to fig. 1, specifically, two water tanks 1001 are connected to a spraying component of an agricultural drone through a pipe connector 1002. The water of the two water tanks 1001 is opened by the two check valves 1003 and is combined together by the pipe communicator 1002 to be communicated. That is, communication of each water tank 1001 with the pipe communicator 1002 is achieved by the check valve 1003. Specifically, when the water tank 1001 leaves the pipe communicator 1002, the check valve 1003 corresponding to the water tank 1001 is closed, and the water in the water tank 1001 cannot flow out through the check valve 1003. When the water tank 1001 is placed on the pipe connector 1002, the corresponding check valve 1003 is subjected to the pressure of the pipe connector 1002, the corresponding check valve 1003 is opened, and water flows out of the water tank 1001 into the pipe connector 1002.

However, current agricultural unmanned aerial vehicle of two water tanks is difficult to control the flow of each water tank flow direction connecting pipe, has restricted agricultural unmanned aerial vehicle's application.

Therefore, the inventor of the utility model improves the control method of water tank assembly, sprinkler, movable platform and water tank assembly to the flow of each water tank outflow liquid in the control water tank assembly.

Referring to fig. 2 and fig. 3, a movable platform 1000 according to an embodiment of the present invention includes a movable platform body 101, a spraying device 102, and a control assembly 103. The sprinkler 102 includes a tank assembly 100 and a sprinkler assembly 200. Both the spray assembly 200 and the water tank assembly 100 are disposed on the movable platform body 101. The movable platform 1000 can be used for spraying agricultural products, forest trees and the like with liquid such as pesticide, water and the like in the farming industry.

The movable platform 1000 can realize movements such as moving, rotating, overturning, and the like, and the movable platform body 101 can drive the spraying device 102 to move to different positions or different angles to spray in a preset area. The movable platform 1000 may include an unmanned aerial vehicle, an unmanned ship, a robot, or the like; alternatively, the movable platform 1000 may be one of an unmanned aerial vehicle, an unmanned ship, a robot, and the like in one form, and may be at least one of an unmanned aerial vehicle, an unmanned ship, a robot, and the like in another form. Unmanned vehicles can be quad-rotor unmanned aerial vehicles, six-rotor unmanned aerial vehicles, eight-rotor unmanned aerial vehicles, and also can be fixed-wing unmanned aerial vehicles.

The following description will be given by taking an example in which the movable platform 1000 is a plant protection unmanned aerial vehicle and the spraying liquid is a liquid medicine. It is to be understood that the particular form of the movable platform 1000 is not limited to plant protection drones, and is not intended to be limiting.

Referring to fig. 2, in some embodiments, the moveable platform body 101 includes a body 1011, a boom 1012, and a power system 1013. The power system 1013 may include one or more electronic governors (referred to simply as electric governors), one or more propellers 1014, and one or more power motors 1015 corresponding to the one or more propellers 1014. Wherein, the power motor 1015 is connected between the electronic governor and the propeller 1014, and the power motor 1015 and the propeller 1014 are arranged on the machine arm 1012. The electronic governor is used for receiving a driving signal generated by the control component 103 and providing a driving current to the power motor 1015 according to the driving signal so as to control the rotating speed of the power motor 1015. The power motor 1015 is used to drive the propeller 1014 to rotate, thereby providing power for the flight of the movable platform body 101, which enables the movable platform body 101 to achieve one or more degrees of freedom of movement. In some embodiments, the movable platform body 101 may rotate about one or more axes of rotation. For example, the rotation axis may include at least one of a roll axis (roll axis), a yaw axis (yaw axis), and a pitch axis (pitch axis). It should be understood that the power motor 1015 may be a dc motor, or an ac motor. In addition, the power motor 1015 may be a brushless motor or a brush motor.

Referring to fig. 2, in some embodiments, the spray assembly 200 includes a water pump mechanism (not shown), a spray head mechanism 201, and a catheter 202. The water tank assembly 100 can be in communication with a water pump mechanism. The water pump mechanism and the spray head mechanism 201 are both connected to the liquid guide pipe 202, so that liquid pumped by the water pump mechanism can be conveyed to the spray head mechanism 201 through the liquid guide pipe 202 and is sprayed out through the spray head mechanism 201, and spraying operation is achieved.

Illustratively, the number of the nozzle mechanisms 201 includes at least one, such as one, two, three or more, and is not limited herein.

In some embodiments, the control assembly 103 is used to control the movement of the movable platform body 101; and/or control the spray operation of the spray device 102. It should be understood that the control assembly 103 may control the movable platform body 101 and/or the spray device 102 according to preprogrammed program instructions, or may control the movable platform body 101 and/or the spray device 102 in response to one or more control instructions from a control terminal.

Referring to fig. 4, in some embodiments, the water tank assembly 100 includes a first water tank 10, a second water tank 20, a connection pipe 30, a first control valve 40, and a second control valve 50. The connection pipe 30 is used to guide the liquids in the first and

second water tanks

10 and 20 to be mixed, and to deliver the mixed liquid to the spray assembly 200. The first and

second control valves

40 and 50 are used to control the flow of the liquid in the first tank 10 to the connection pipe 30 and the flow of the liquid in the second tank 20 to the connection pipe 30, respectively, in response to the control signal of the control assembly 103.

In the water tank assembly 100 of the above embodiment, the first control valve 40 can control the flow rate of the liquid in the first water tank 10 flowing to the connection pipe 30 in response to the control signal of the control assembly 103, and the second control valve 50 can control the flow rate of the liquid in the second water tank 20 flowing to the connection pipe 30 in response to the control signal of the control assembly 103, so as to control the mixing ratio of the liquid in the first water tank 10 and the liquid in the second water tank 20 in the connection pipe 30.

Illustratively, the spray assembly 200 is coupled to the connection tube 30. The liquid in the first water tank 10 and the liquid in the second water tank 20 can be mixed in the connection pipe 30 and then can be supplied to the spray assembly 200, thereby performing a spraying operation.

In some embodiments, the control assembly 103 is used to send control signals to the first and

second control valves

40, 50 of the tank assembly 100. The control signal is used to make the first control valve 40 and the second control valve 50 respectively control the flow rate of the liquid in the first tank 10 to the connection pipe 30 and the flow rate of the liquid in the second tank 20 to the connection pipe 30, so that the liquids flowing to the connection pipe 30 are mixed at the connection pipe 30 and then delivered to the spray assembly 200.

Illustratively, when the first and

second water tanks

10 and 20 store different liquids, respectively, and the liquid in the first and

second water tanks

10 and 20 needs to be mixed and then sprayed from the spray assembly 200 after being mixed by the connection pipe 30, the control assembly 103 can send control signals to the first and

second control valves

40 and 50 of the water tank assembly 100. The first control valve 40 and the second control valve 50 can control the flow rate of the liquid in the first tank 10 to the connection pipe 30 and the flow rate of the liquid in the second tank 20 to the connection pipe 30, respectively, in response to the control signal of the control assembly 103, thereby controlling the mixing ratio of the two different liquids.

For example, the first tank 10 stores a chemical solution a, the second tank 20 stores a chemical solution B, and the chemical solution a is different from the chemical solution B. The liquid medicine C sprayed from the spraying unit 200 is a liquid including a mixture of the liquid medicine a and the liquid medicine B. When the movable platform 1000 needs to spray the liquid medicine C, the control assembly 103 sends a first control signal and a second control signal to the first control valve 40 and the second control valve 50, respectively. After the first control valve 40 receives the first control signal, the first control valve 40 controls the flow rate of the chemical liquid a flowing from the first water tank 10 to the connection pipe 30 in response to the first control signal. After the second control valve 50 receives the second control signal, the first control valve 40 controls the flow rate of the liquid medicine B flowing from the second water tank 20 to the connection pipe 30 in response to the second control signal, thereby controlling the mixing ratio of the liquid medicine a and the liquid medicine B in the connection pipe 30, and further controlling the spraying parameters of the liquid medicine C sprayed from the spraying assembly 200.

In some embodiments, the control assembly 103 sends control signals for adjusting the opening of the first control valve 40 to control the flow of the liquid in the first tank 10 to the connection pipe 30 and adjusting the opening of the second control valve 50 to control the flow of the liquid in the second tank 20 to the connection pipe 30.

Illustratively, the opening includes fully open, fully closed, and any other suitable opening size from fully closed to fully open.

It is understood that, when the opening degree of the first control valve 40 is different, the flow rate of the liquid in the first tank 10 to the connection pipe 30 is also different. For example, when the first control valve 40 is fully opened, the flow rate of the liquid in the first tank 10 flowing to the connection pipe 30 is Q1. When the opening degree of the first control valve 40 is half open, the flow rate of the liquid in the first tank 10 flowing to the connection pipe 30 is Q2. Q1 is greater than Q2. Thus, the flow rate of the liquid in the first tank 10 to the connection pipe 30 can be adjusted by adjusting the opening degree of the first control valve 40. The relationship between the opening degree and the flow rate of the second control valve 50 is the same, and will not be described herein.

For example, after the first control valve 40 receives the control signal sent by the control component 103, the first control valve 40 adjusts the opening degree of the first control valve 40 in response to the control signal, so as to control the flow rate of the liquid in the first water tank 10 to the connection pipe 30.

After the second control valve 50 receives the control signal sent by the control component 103, the second control valve 50 adjusts the opening degree of the second control valve 50 in response to the control signal, so as to control the flow rate of the liquid in the second water tank 20 to the connection pipe 30.

In some embodiments, the control signal is used to adjust the opening of the first control valve 40 by adjusting a valve parameter of the first control valve 40 and/or to adjust the opening of the second control valve 50 by adjusting a valve parameter of the second control valve 50.

Illustratively, upon receipt of a control signal sent by the control assembly 103 by the first control valve 40, the first control valve 40 adjusts a valve parameter of the first control valve 40 in response to the control signal, thereby adjusting the opening of the first control valve 40.

After the second control valve 50 receives the control signal sent by the control component 103, the second control valve 50 adjusts the valve parameter of the second control valve 50 in response to the control signal, so as to adjust the opening degree of the second control valve 50.

Illustratively, the valve parameters include frequency and/or duty cycle.

For example, the valve parameters include frequency and duty cycle. By controlling the frequency and duty ratio of the first control valve 40 and controlling the frequency and duty ratio of the second control valve 50, the opening degree of the first control valve 40 and the opening degree of the second control valve 50 can be controlled, thereby controlling the flow rate of the liquid in the first tank 10 to the connection pipe 30 and the flow rate of the liquid in the second tank 20 to the connection pipe 30, and further controlling the mixing ratio of the liquid in the first tank 10 and the liquid in the second tank 20.

In some embodiments, the control assembly 103 is further configured to adjust the opening of the first control valve 40 and/or the second control valve 50 to be fully closed based on the tank information. The tank information includes at least one of the presence information and the amount of the stored liquid of the first water tank 10 and/or the second water tank 20, and the presence information includes whether the first water tank 10 and/or the second water tank 20 is connected to the connection pipe 30.

Illustratively, the presence information may be detected by a hall sensor or an inductive switch, or the like.

Illustratively, the stock solution amount may be detected by a liquid level meter or the like.

Illustratively, the control module 103 is configured to adjust the opening of the first control valve 40 to be fully closed according to at least one of the on-site information of the first tank 10 and the amount of the stored liquid. The control module 103 is configured to adjust the opening of the second control valve 50 to be fully closed according to at least one of the on-site information and the amount of the stored liquid of the second tank 20.

In some embodiments, if the first tank 10 is not connected to the connection pipe 30, the opening degree of the first control valve 40 is adjusted to be fully closed. If the second tank 20 is not connected to the connection pipe 30, the opening degree of the second control valve 50 is adjusted to be fully closed.

For example, during the spraying operation, when the first water tank 10 is not connected to the connection pipe 30 and the second water tank 20 is connected to the connection pipe 30, the opening of the first control valve 40 is controlled to be fully closed, and the second control valve 50 is controlled to be opened, so that the normal spraying operation of the movable platform 1000 can be ensured, and the liquid in the connection pipe 30 can be prevented from flowing out from the interface of the connection pipe 30 for connecting with the first water tank 10, thereby preventing the water tank assembly 100 from leaking. In addition, the water tank assembly 100 of the present embodiment can also prevent air from entering the connection pipe 30 through the interface of the connection pipe 30 for connecting with the first water tank 10, and prevent the water tank assembly 100 from entering air and affecting the spraying operation.

For example, during the spraying operation, when the first water tank 10 is connected to the connection pipe 30 and the second water tank 20 is not connected to the connection pipe 30, the first control valve 40 is controlled to be opened and the second control valve 50 is controlled to be fully closed, so that the normal spraying operation of the movable platform 1000 can be ensured, and the liquid in the connection pipe 30 or the liquid in the first water tank 10 can be prevented from flowing out from the connection port of the connection pipe 30 for connecting with the second water tank 20, thereby preventing the water tank assembly 100 from leaking. In addition, the water tank assembly 100 of the present embodiment can also prevent air from entering the connection pipe 30 through the interface of the connection pipe 30 for connecting with the second water tank 20, and prevent the water tank assembly 100 from entering air and affecting the spraying operation.

In some embodiments, if the stored liquid amount of the first tank 10 is less than or equal to the first preset liquid amount, the opening of the first control valve 40 is adjusted to be fully closed. And if the stored liquid amount of the second water tank 20 is less than or equal to the second preset liquid amount, adjusting the opening of the second control valve 50 to be fully closed.

The first preset liquid amount and the second preset liquid amount can be designed to be any suitable values according to actual requirements, and are not limited herein. The first predetermined liquid amount and the second predetermined liquid amount may be the same or different.

Illustratively, during the spraying operation, when the stored liquid amount of the first tank 10 is less than or equal to a first predetermined liquid amount and the stored liquid amount of the second tank 20 is greater than a second predetermined liquid amount, the opening degree of the first control valve 40 is adjusted to be fully closed and the second control valve 50 is opened, so as to prevent the air in the first tank 10 from entering the connection pipe 30 and causing the air in the tank assembly 100 to enter the air.

Illustratively, during the spraying operation, when the stored liquid amount of the first tank 10 is greater than the first predetermined liquid amount and the stored liquid amount of the second tank 20 is less than or equal to the second predetermined liquid amount, the first control valve 40 is opened and the second control valve 50 is fully closed to prevent the air in the second tank 20 from entering the connection pipe 30 and causing the air in the tank assembly 100 to enter the air.

For example, when movable platform 1000 is used for spraying operations, movable platform 1000 will typically have a certain inclination when flying. When the first tank 10 has liquid and the second tank 20 has no liquid, if the movable platform 1000 has a certain inclination, air in the second tank 20 may enter the connection pipe 30, which causes a problem that the tank assembly 100 enters air.

Illustratively, the control assembly 103 is configured to control the first control valve 40 and the second control valve 50 to open when the first water tank 10 and the second water tank 20 are both connected to the connection pipe 30, and the stored liquid amount of the first water tank 10 is greater than a first preset liquid amount and the stored liquid amount of the second water tank 20 is greater than a second preset liquid amount, so that the first water tank 10 and the second water tank 20 are both communicated with the connection pipe 30 to achieve the spraying operation.

Referring to FIG. 4, the connecting tube 30 includes a first liquid outlet tube 31, a second liquid outlet tube 32 and a mixing tube 33. The first outlet pipe 31 is used for communicating with the first water tank 10. The second outlet pipe 32 is adapted to communicate with the second tank 20. Mixing tube 33 is used to mix the liquid from first outlet tube 31 and the liquid from second outlet tube 32 and deliver the mixed liquid to spraying assembly 200.

Illustratively, one end of first effluent pipe 31 can be connected to first tank 10, and the other end of first effluent pipe 31 is connected to mixing pipe 33. One end of the second outlet pipe 32 can be connected to the second tank 20 and the other end of the second outlet pipe 32 is connected to the mixing pipe 33. First effluent pipe 31 and second effluent pipe 32 are connected to different positions of mixing pipe 33, respectively.

Referring to fig. 4, a first control valve 40 is disposed in the first liquid outlet pipe 31, and a second control valve 50 is disposed in the second liquid outlet pipe 32.

It will be appreciated that the first control valve 40 and the second control valve 50 may be disposed at any suitable location of the connecting tube 30. For example, first control valve 40 and second control valve 50 may be disposed in first effluent channel 31 and second effluent channel 32, respectively. As another example, the first control valve 40 and the second control valve 50 are both provided in the mixing pipe 33. For another example, first control valve 40 is disposed in first effluent line 31, and second control valve 50 is disposed in mixing line 33. For example, first control valve 40 is disposed in mixing tube 33, and second control valve 50 is disposed in second outlet tube 32, etc.

In some embodiments, first control valve 40 is configured to control the flow of liquid from first tank 10 to mixing tube 33 via first outlet tube 31 based on a control signal. The second control valve 50 is used for controlling the flow of the liquid in the second tank 20 to the mixing pipe 33 via the second outlet pipe 32 according to the control signal.

Illustratively, the liquid in the first tank 10 is different from the liquid in the second tank 20. First control valve 40 is capable of controlling the flow of liquid in first tank 10 to mixing pipe 33 via first outlet pipe 31 in response to a control signal from control assembly 103, and second control valve 50 is capable of controlling the flow of liquid in second tank 20 to mixing pipe 33 via second outlet pipe 32 in response to a control signal from control assembly 103, thereby controlling the mixing ratio of liquid in first tank 10 and liquid in second tank 20. The liquid in the first tank 10 and the liquid in the second tank 20 can be delivered to the spray assembly 200 after being mixed by the mixing pipe 33.

Referring to fig. 4, in some embodiments, the first water tank 10 and the second water tank 20 are detachably connected to the connection pipe 30, so that the first water tank 10 and the second water tank 20 can be easily replaced, or the liquid in the first water tank 10 and/or the second water tank 20 can be easily replenished in time. Illustratively, first tank 10 is removably coupled to first outlet pipe 31. The second tank 20 is detachably connected to the second outlet pipe 32.

In some embodiments, first control valve 40 and/or second control valve 50 comprise electrically controlled valves.

Illustratively, the first control valve 40 and the second control valve 50 are both electrically controlled valves. In this way, the first control valve 40 and the second control valve 50 can automatically control the flow rate of the liquid in the first water tank 10 to the connection pipe 30 and the flow rate of the liquid in the second water tank 20 to the connection pipe 30 in response to the control signal of the control assembly 103, respectively, thereby automatically controlling the flow rate and the mixing ratio of the liquid in the first water tank 10 and the liquid in the second water tank 20, and improving the control accuracy of the flow rate and the mixing ratio.

In other embodiments, the first control valve 40 and/or the second control valve 50 may also be manual valves.

In some embodiments, the electrically controlled valve comprises a solenoid valve or an electrically controlled valve. The solenoid valve illustratively includes a direct-acting solenoid valve, a step-by-step direct-acting solenoid valve, a pilot-operated solenoid valve, or the like.

In some embodiments, the first and

second water tanks

10 and 20 are respectively provided with a connection assembly 60, and the first or

second water tank

10 or 20 is connected to the connection pipe 30 by the connection assembly 60.

Illustratively, the corresponding connecting assembly 60 of the first water tank 10 may be integrally constructed, fixedly connected, or detachably connected with the first water tank 10.

Referring to fig. 4, the connecting assembly 60 of the first tank 10 is detachably connected to the first outlet pipe 31, so as to detachably connect the first tank 10 to the connecting pipe 30. The connecting assembly 60 of the second tank 20 is detachably connected to the second outlet pipe 32, so that the second tank 20 is detachably connected to the connecting pipe 30.

Referring to fig. 4, the connecting assembly 60 includes a check valve 61. The check valve 61 is used to control the first water tank 10 and/or the second water tank 20 to communicate with the connection pipe 30.

Illustratively, the connection assembly 60 includes a first one-way valve 61a and a second one-way valve 61 b. The first check valve 61a is used for controlling the first water tank 10 to communicate with the first liquid outlet pipe 31. The second check valve 61b is used for controlling the second water tank 20 to communicate with the second liquid outlet pipe 32.

Illustratively, when the first tank 10 leaves the first outlet pipe 31, the first check valve 61a on the first tank 10 is closed, and the liquid in the first tank 10 cannot flow out through the first check valve 61 a. When the first tank 10 is placed on the first outlet pipe 31, the first check valve 61a on the first tank 10 is pressurized by the interface of the first outlet pipe 31, the first check valve 61a is opened, and the liquid in the first tank 10 can flow out through the first check valve 61a into the first outlet pipe 31.

When the second tank 20 leaves the second outlet pipe 32, the second check valve 61b of the second tank 20 is closed, and the liquid in the second tank 20 cannot flow out through the second check valve 61 b. When the second tank 20 is placed on the second outlet pipe 32, the second check valve 61b on the second tank 20 is pressurized by the interface of the second outlet pipe 32, the second check valve 61b is opened, and the liquid in the second tank 20 can flow out through the second check valve 61b and enter the second outlet pipe 32.

Referring to fig. 5 in conjunction with the foregoing embodiment, fig. 5 is a schematic flowchart of a method for controlling a water tank assembly according to an embodiment of the present invention. The control method may be applied to the water tank assembly or the movable platform in any one of the above embodiments, and is used for controlling the flow rate of the liquid in the first water tank to the connection pipe and the flow rate of the liquid in the second water tank to the connection pipe when the first water tank and the second water tank are connected to the connection pipe.

As shown in fig. 5, a method for controlling a water tank assembly according to an embodiment of the present invention includes step S110.

And step S110, sending control signals to a first control valve and a second control valve of the water tank assembly.

The water tank assembly includes a connection pipe, a first water tank, and a second water tank.

The control signal is used for enabling the first control valve and the second control valve to respectively control the flow of the liquid in the first water tank flowing to the connecting pipe and the flow of the liquid in the second water tank flowing to the connecting pipe, so that the liquid flowing to the connecting pipe is mixed in the connecting pipe and then is conveyed to the spraying assembly.

It is understood that the steps of the control method can be implemented by a processor, and also can be implemented by a control assembly built by a plurality of electronic devices.

In some embodiments, the control signal is used to adjust an opening of the first control valve to control a flow rate of the liquid in the first tank to the connection pipe and to adjust an opening of the second control valve to control a flow rate of the liquid in the second tank to the connection pipe.

In some embodiments, the control signal is used to adjust the opening of the first control valve by adjusting a valve parameter of the first control valve and/or to adjust the opening of the second control valve by adjusting a valve parameter of the second control valve.

In some embodiments, the valve parameters include: frequency and/or duty cycle.

In some embodiments, the method further comprises: adjusting the opening degree of the first control valve and/or the second control valve to be fully closed according to the water tank information; the tank information includes at least one of presence information and a liquid storage amount of the first water tank and/or the second water tank, and the presence information includes whether the first water tank and/or the second water tank is connected to the connection pipe.

In some embodiments, the adjusting the opening degree of the first control valve and/or the second control valve to be fully closed according to the tank information includes:

if the first water tank is not connected to the connecting pipe, the opening degree of the first control valve is adjusted to be fully closed; and if the second water tank is not connected to the connecting pipe, adjusting the opening degree of the second control valve to be fully closed.

if the liquid storage amount of the first water tank is less than or equal to a first preset liquid amount, adjusting the opening of the first control valve to be fully closed; and if the liquid storage amount of the second water tank is less than or equal to a second preset liquid amount, adjusting the opening of the second control valve to be fully closed.

The embodiment of the utility model provides a control method's concrete principle and implementation all are similar with the water tank set spare of aforementioned embodiment, and it is no longer repeated here.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described above. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular method step, feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular method steps, features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a plant protection unmanned aerial vehicle, its characterized in that includes:

a movable platform body;

the spraying assembly is arranged on the movable platform body;

the water tank assembly is arranged on the movable platform body;

a first water tank and a second water tank;

2. The plant protection unmanned aerial vehicle of claim 1, wherein the connecting pipe comprises a first liquid outlet pipe for communicating with the first water tank, a second liquid outlet pipe for communicating with the second water tank, and a mixing pipe for mixing liquid flowing out of the first liquid outlet pipe and liquid flowing out of the second liquid outlet pipe and conveying the mixed liquid to the spraying assembly.

3. The plant protection unmanned aerial vehicle of claim 2, wherein the first control valve is disposed in the first drain pipe, and the second control valve is disposed in the second drain pipe.

4. The unmanned aerial vehicle for plant protection of claim 2, wherein the first control valve is configured to control a flow rate of the liquid in the first water tank to the mixing pipe via the first liquid outlet pipe according to the control signal; and the second control valve is used for controlling the flow of the liquid in the second water tank flowing to the mixing pipe through the second liquid outlet pipe according to the control signal.

5. The plant protection unmanned aerial vehicle of any one of claims 1-4, wherein the first water tank and the second water tank are respectively detachably connected with the connecting pipe.

6. A plant protection unmanned aerial vehicle according to any one of claims 1-4, wherein the first control valve and/or the second control valve comprises an electrically controlled valve.

7. The unmanned aerial vehicle for plant protection of claim 6, wherein the electrically controlled valve comprises a solenoid valve or an electrically operated valve.

8. The unmanned aerial vehicle for plant protection as claimed in any one of claims 1-4, wherein the first water tank and the second water tank are respectively provided with a connecting assembly, and the first water tank or the second water tank is connected with the connecting pipe through the connecting assembly.

9. The plant protection unmanned aerial vehicle of claim 8, wherein the connection assembly comprises:

10. A plant protection unmanned aerial vehicle according to any one of claims 1-4, wherein the control assembly is configured to send control signals to a first control valve and a second control valve of the tank assembly; the control signal is used for enabling the first control valve and the second control valve to respectively control the flow of the liquid in the first water tank flowing to the connecting pipe and the flow of the liquid in the second water tank flowing to the connecting pipe, so that the liquid flowing to the connecting pipe is mixed in the connecting pipe and then is conveyed to the spraying assembly.