Unmanned aerial vehicle spraying device

Abstract

The utility model discloses an unmanned aerial vehicle spraying device which comprises a bottom frame, a working platform, a plurality of connecting arms and a liquid storage tank, the working platform is arranged over the bottom frame, and the connecting arms are connected between the bottom frame and the working platform; according to the device, the multiple connecting arms are arranged to be connected with the multiple rotating impellers, so that the device is driven to take off through rotation of the rotating impellers so as to automatically move to the position over a needed spraying site, then the liquid storage box is arranged, and pesticide needing to be sprayed is stored through a liquid storage cavity of the liquid storage box; a second driving motor, a plurality of spraying heads and a stirring impeller are arranged, and a transmission shaft of the second driving motor is used for driving the spraying heads and the stirring impeller to rotate, so that the spraying heads can rotate while the pesticide in the liquid storage chamber is stirred, the sprayed pesticide can be rotationally dispersed, and the pesticide can be sprayed in a large range; and automatic large-area rapid pesticide spraying is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to an unmanned aerial vehicle spraying device. Background Art

[0002] In the field of pesticide spraying, in order to improve the growth quality and efficiency of crops and trees, many farmlands and forests need to spray pesticides on crop seedlings and forest seedlings for pest control, weed removal, prevention and control of harmful organisms, etc. However, generally, the areas of farmlands and forests are large. When using the conventional pesticide spraying method, usually, a manual hand-held spraying device is used to spray the farmlands and forests. This method not only has low spraying efficiency, is time-consuming and laborious, but also easily causes repeated spraying, which is not conducive to crop growth. The publication number is CN206963769U, which discloses a pesticide spraying device, including a handle, a telescopic pipe, an electromagnetic valve, a protective cover, a hose, a liquid adding port, an infusion pump, a push rod, a liquid storage tank, a battery, a vehicle body, wheels, switch one, switch two, switch three and switch four; the utility model can store different kinds of liquid medicines, and through the electromagnetic valves controlled by respective infusion pumps and switches, spray different parts of different crops or tree seedlings. Although this spraying device can move, the overall efficiency is not high and it cannot spray quickly. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an unmanned aerial vehicle spraying device that can automatically spray pesticides over a large area.

[0004] To achieve the above purpose, the solution provided by the utility model is: an unmanned aerial vehicle spraying device, including a chassis, a working platform, a plurality of connecting arms, and a liquid storage tank. The working platform is arranged directly above the chassis, and a plurality of the connecting arms are connected between the chassis and the working platform. The plurality of connecting arms are arranged annularly and equidistantly at intervals in sequence. A rotating impeller is rotatably connected to the end of the connecting arm.

[0005] The liquid storage tank is arranged at the bottom of the chassis. A liquid storage chamber is formed inside the liquid storage tank. The liquid storage chamber is used for storing liquid. An installation groove is formed at the top of the liquid storage tank. A second driving motor is arranged in the installation groove. The second driving motor is connected with a transmission shaft. The transmission shaft passes through the liquid storage chamber and extends out of the bottom of the liquid storage tank. A plurality of spray heads are rotatably connected to the bottom of the liquid storage tank. The plurality of spray heads are arranged annularly and at intervals in sequence. The plurality of spray heads are respectively communicated with the liquid storage chamber upwards. The transmission shaft drives the plurality of spray heads to rotate synchronously. A stirring impeller is sleeved on the transmission shaft. The stirring impeller is located in the liquid storage chamber.

[0006] The beneficial effects of the present utility model are as follows: It realizes automatic large-area pesticide spraying. The device drives multiple rotating impellers through a plurality of connecting arms. In this way, through the rotation of the rotating impellers, the device is driven to take off and automatically move to directly above the required spraying site. Then, by setting a liquid storage tank, the liquid storage chamber of the liquid storage tank is used to store the pesticides to be sprayed. Furthermore, by setting a second driving motor, a plurality of spray heads, and a stirring impeller, the transmission shafts of the second driving motor drive the plurality of spray heads and the stirring impeller to rotate respectively. In this way, while stirring the pesticides in the liquid storage chamber, the plurality of spray heads can also be rotated, so that the sprayed pesticides can be rotated and dispersed, and the pesticides can be sprayed over a large area, realizing automatic large-area and rapid pesticide spraying.

[0007] Further, a first driving motor is provided at the end of each of the connecting arms, and the first driving motor is connected upward to the rotating impeller. After the present utility model adopts the above structure, it realizes driving the rotating impeller to rotate.

[0008] Further, a power supply is provided on the chassis. After the present utility model adopts the above structure, it has a power supply function.

[0009] Further, the chassis includes a first top plate and a first bottom plate. The first top plate and the first bottom plate are arranged at an interval up and down, and a plurality of first connecting rods are connected between the first top plate and the first bottom plate. Among them, a plurality of connecting arms are connected to the top of the first top plate, and the liquid storage tank is connected to the bottom of the first bottom plate.

[0010] Further, a camera is provided on the working platform. After the present utility model adopts the above structure, the on-site situation can be observed.

[0011] Further, a connecting member is sleeved on each of the connecting arms, and a support leg is connected to the bottom of the connecting member. The support leg is inclined downward. After the present utility model adopts the above structure, the whole device can be supported on flat ground.

[0012] Further, a pressure pump is provided on the outer side wall of the liquid storage tank, and the pressure pump is connected to the liquid storage chamber. After the present utility model adopts the above structure, the pesticides in the liquid storage chamber are output through the pressure pump.

[0013] Further, a driven gear is sleeved on the spray head, a driving gear is sleeved at the end of the transmission shaft, and the driving gear is connected to the plurality of driven gears respectively through chains. After the present utility model adopts the above structure, it realizes driving the plurality of spray heads to rotate synchronously.

[0014] Further, a water inlet is opened at the top of the spray head, a spraying part is formed at the bottom of the spray head, a plurality of spraying holes are opened in the spraying part, the plurality of spraying holes are arranged at intervals in a ring shape in sequence, and the water inlet is communicated with the plurality of spraying holes respectively. Description of the Drawings

[0015] Figure 1 is the three-dimensional view of the overall structure of the present utility model Figure 1 。

[0016] Figure 2 is the three-dimensional view of the overall structure of the present utility model Figure 2 。

[0017] Figure 3 is the three-dimensional view of the liquid storage tank of the present utility model.

[0018] Figure 4 is the internal structure diagram of the liquid storage tank of the present utility model.

[0019] Wherein, 1 is the chassis, 11 is the first top plate, 12 is the first bottom plate, 13 is the first connecting rod, 14 is the power supply, 2 is the working platform, 21 is the camera, 3 is the connecting arm, 31 is the first driving motor, 32 is the rotating impeller, 33 is the connecting piece, 34 is the support leg, 4 is the liquid storage tank, 41 is the liquid storage chamber, 42 is the installation groove, 43 is the second driving motor, 431 is the transmission shaft, 432 is the driving gear, 44 is the spray head, 441 is the driven gear, 442 is the spray part, 443 is the spray hole, 444 is the water inlet, 45 is the stirring impeller, 46 is the pressure pump. Specific embodiments

[0020] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] See attached Figure 1 to attached Figure 4As shown in the figure, a drone spraying device includes a chassis 1, a working platform 2, multiple connecting arms 3, and a liquid storage tank 4. A working platform 2 is arranged directly above the chassis 1. Multiple connecting arms 3 are connected between the chassis 1 and the working platform 2. The multiple connecting arms 3 are arranged at equal intervals in a circular pattern. A rotating impeller 32 is rotatably connected to the end of the connecting arm 3. A first driving motor 31 is provided at the end of each connecting arm 3, and the first driving motor 31 is connected upward to the rotating impeller 32. A connecting member 33 is sleeved on each connecting arm 3, and a support leg 34 is connected to the bottom of the connecting member 33, where the support leg 34 is inclined downward.

[0023] The liquid storage tank 4 is arranged at the bottom of the chassis 1. A rotating liquid storage chamber 41 is formed inside the liquid storage tank 4 for storing liquid. An installation groove 42 is formed at the top of the liquid storage tank 4. A second driving motor 43 is arranged in the installation groove 42. The second driving motor 43 is connected to a transmission shaft 431. The transmission shaft 431 passes through the rotating liquid storage chamber 41 and extends out of the bottom of the liquid storage tank 4. A plurality of spray heads 44 are rotatably connected to the bottom of the liquid storage tank 4. The plurality of spray heads 44 are arranged at equal intervals in a circular pattern. The plurality of spray heads 44 are respectively connected upward to the rotating liquid storage chamber 41. The transmission shaft 431 drives the plurality of spray heads 44 to rotate synchronously. A stirring impeller 45 is sleeved on the transmission shaft 431, and the stirring impeller 45 is located inside the rotating liquid storage chamber 41.

[0024] In this embodiment, the liquid storage tank 4 is provided with a water inlet for the user to transport one or more pesticides required to the liquid storage tank 4.

[0025] In this embodiment, a power supply 14 is arranged on the chassis 1. Specifically, the chassis 1 includes a first top plate 11 and a first bottom plate. The first top plate 11 and the first bottom plate are arranged at an interval up and down. A plurality of first connecting rods are connected between the first top plate 11 and the first bottom plate. Among them, the top of the first top plate 11 is connected to a plurality of connecting arms 3, and the bottom of the first bottom plate is connected to the liquid storage tank 4.

[0026] In this embodiment, a camera 21 is arranged on the working platform 2.

[0027] In this embodiment, a pressure pump 46 is arranged on the outer side wall of the liquid storage tank 4, and the pressure pump 46 is connected to the rotating liquid storage chamber 41.

[0028] In this embodiment, a driven gear 441 is sleeved on the spray head 44, and a driving gear 432 is sleeved at the end of the transmission shaft 431. The driving gear 432 is connected to the plurality of driven gears 441 through a chain respectively.

[0029] In this embodiment, a water inlet 444 is formed at the top of the spray head 44. A spraying part 442 is formed at the bottom of the spray head 44. A plurality of spraying holes 443 are formed in the spraying part 442. The plurality of spraying holes 443 are arranged at equal intervals in a circular pattern. The water inlet 444 is respectively communicated with the plurality of spraying holes 443.

[0030] In this embodiment, the specific spraying process is as follows: First, one or more pesticides required are conveyed to the liquid storage tank 4. Then, a plurality of first driving motors 31 are started. The first driving motors 31 drive the rotating impellers 32 to rotate, so as to drive the whole device to take off and move to a set position. Then, the second driving motor 43 and the pressure pump 46 are started in sequence. The second driving motor 43 drives the transmission shaft 431 to rotate. The transmission shaft 431 drives the stirring impeller 45 and the driving gear 432 to rotate respectively. The stirring impeller 45 stirs and mixes the pesticides in the liquid storage chamber 41. The driving gear 432 drives a plurality of driven gears 441 to rotate through a chain, so as to drive a plurality of spray heads 44 to rotate. The pressure pump 46 pressurizes the liquid storage chamber 41, so that the pesticides in the liquid storage chamber 41 are supplied to the water inlets 444 of the plurality of spray heads 44 and sprayed out through a plurality of spray holes 443. Thus, in cooperation with the rotation of the spray heads 44, the sprayed pesticides can be rotated and dispersed for spraying, so as to effectively spray pesticides over a large area.

[0031] Among them, during the flight, the on-site spraying situation can be fed back in real time through the camera 21.

[0032] The above-described embodiments are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any person skilled in the art can make more possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present invention. Therefore, all equivalent changes made according to the idea of the present invention without departing from the content of the technical solution of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A spray device for an unmanned aerial vehicle, comprising a base frame (1), a working platform (2), a plurality of connecting arms (3), and a liquid storage tank (4), characterized in that: The working platform (2) is arranged directly above the base frame (1), and a plurality of connecting arms (3) are connected between the base frame (1) and the working platform (2). The plurality of connecting arms (3) are arranged in a ring-like manner and at equal intervals, and the ends of the connecting arms (3) are rotatably connected to a rotating impeller (32); The bottom of the base frame (1) is provided with the liquid storage tank (4), the inside of which is formed a rotating liquid storage chamber (41), the rotating liquid storage chamber (41) being used to store liquid, the top of the liquid storage tank (4) is formed with a mounting groove (42), a second drive motor (43) is arranged in the mounting groove (42), the second drive motor (43) is connected to a transmission shaft (431), the transmission shaft (431) passes through the rotating liquid storage chamber (41) and then extends out of the bottom of the liquid storage tank (4), a plurality of spray heads (44) are rotatably connected to the bottom of the liquid storage tank (4), the plurality of spray heads (44) are arranged in a ring in sequence and spaced apart, the plurality of spray heads (44) are respectively connected upwardly to the rotating liquid storage chamber (41), the transmission shaft (431) respectively drives the plurality of spray heads (44) to rotate synchronously, the transmission shaft (431) is provided with a stirring impeller (45), the stirring impeller (45) is located in the rotating liquid storage chamber (41).

2. The UAV spray device according to claim 1, characterized in that: A first drive motor (31) is provided at the end of each connecting arm (3), and the first drive motor (31) is upwardly connected to a rotating impeller (32).

3. The UAV spraying device according to claim 1, characterized in that: A power source (14) is provided on the base frame (1).

4. The UAV spraying device according to claim 3, characterized in that: The base frame (1) comprises a first top plate (11) and a first bottom plate, wherein the first top plate (11) and the first bottom plate are arranged with an interval therebetween, and the first top plate (11) and the first bottom plate are connected by a plurality of first connecting rods, wherein the top of the first top plate (11) is connected to a plurality of connecting arms (3), and the bottom of the first bottom plate is connected to a liquid storage tank (4).

5. The UAV spraying device according to claim 1, characterized in that: A camera (21) is provided on the working platform (2).

6. The UAV spraying device according to claim 1, characterized in that: A connecting piece (33) is mounted on each connecting arm (3), and a supporting foot (34) is connected to the bottom of the connecting piece (33), wherein the supporting foot (34) is arranged to be inclined downward.

7. The UAV spraying device according to claim 1, characterized in that: A pressure pump (46) is provided on the outer side wall of the liquid storage box (4), and the pressure pump (46) is connected to the rotating liquid storage chamber (41).

8. The UAV spray device according to claim 1, characterized in that: The spray head (44) is sleeved with a driven gear (441), the end of the transmission shaft (431) is sleeved with a driving gear (432), and the driving gear (432) is respectively connected to a plurality of driven gears (441) via chains.

9. The UAV spraying device according to claim 1, characterized in that: The top of the spray head (44) is provided with a water inlet (444), the bottom of the spray head (44) is formed with a spray portion (442), the spray portion (442) is provided with a plurality of spray holes (443), the plurality of spray holes (443) are arranged in a ring-like manner in sequence, and the water inlet (444) is connected to the plurality of spray holes (443) respectively.

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