阅读说明：本技术 一种农用无人机 (Agricultural unmanned aerial vehicle ) 是由 何大安 于 2020-07-03 设计创作，主要内容包括：本发明公开了一种农用无人机,属于无人机领域,包括机体以及位于机体上的集风单元和喷洒单元,集风单元包括转动臂、第一叶片、第二叶片,第一叶片、第一叶片连接在转动臂上,转动臂和中心件连接并能够相对中心件自由自转以使得第一叶片和第二叶片能够根据风力方向调节方向,第一叶片、第二叶片的外侧边分别设有第一进风口、第二进风口,第一进风口和第二进风口均和输风单元连接,转动臂内部设有第一风腔,中心件内设有第二风腔,集风单元和第一风腔连通,第一风腔和第二风腔连通,喷洒单元设有物料腔,物料腔有一喷洒口,喷洒单元还设有喷管,喷管一端和第二风腔连通,另一端位于喷洒口处。(The invention discloses an agricultural unmanned aerial vehicle, which belongs to the field of unmanned aerial vehicles and comprises a machine body, and a wind collecting unit and a spraying unit which are positioned on the machine body, wherein the wind collecting unit comprises a rotating arm, a first blade and a second blade, the first blade and the first blade are connected on the rotating arm, the rotating arm is connected with a central piece and can freely rotate relative to the central piece so that the first blade and the second blade can adjust the direction according to the wind direction, the outer side edges of the first blade and the second blade are respectively provided with a first air inlet and a second air inlet, the first air inlet and the second air inlet are both connected with a wind conveying unit, a first wind cavity is arranged inside the rotating arm, a second wind cavity is arranged in the central piece, the wind collecting unit is communicated with the first wind cavity, the first wind cavity is communicated with the second wind cavity, the spraying unit is provided with a material cavity, the material cavity is provided with a spraying opening, the spraying unit is further provided with a spraying pipe, one end, the other end is positioned at the spraying opening.)

1. The agricultural unmanned aerial vehicle is characterized by comprising a machine body (100), a wind collecting unit (200) and a spraying unit (300), wherein the wind collecting unit (200) and the spraying unit (300) are positioned on the machine body (100), the machine body (100) comprises a center piece (140), four connecting rods (120) and a pair of lifting frames (130) are respectively connected to the center piece, a propeller (100) is arranged at the tail end of each connecting rod, the wind collecting unit comprises a rotating arm (210), a first blade (230) and a second blade (240), the first blade and the first blade are connected to the rotating arm (210), the rotating arm and the center piece are connected (140) and can freely rotate relative to the center piece so that the first blade and the second blade can adjust the direction according to the wind direction, a first air inlet (231) and a second air inlet (241) are respectively arranged on the outer side of the first blade and the outer side of the second blade, and the first air inlet and the second, a first air cavity (220) is formed in the rotating arm, a second air cavity (141) is formed in the central piece, an air collecting unit is communicated with the first air cavity, the first air cavity is communicated with the second air cavity, a material cavity (380) is formed in the spraying unit, a spraying opening (310) is formed in the material cavity, a spraying pipe (320) is further arranged in the spraying unit, one end of the spraying pipe is communicated with the second air cavity, the other end of the spraying pipe is located at the spraying opening, and the air conveying unit sprays flowing wind power entering through the first air inlet and the second air inlet out of the tail end opening of the spraying pipe through the first air cavity and the second air cavity so as to drive materials in the material cavity to be sprayed out of the spraying;

be equipped with the spring between first blade and the second blade so that first blade and second blade have opening trend, make contained angle diminish when unmanned aerial vehicle's wind-force is great between first blade and the second blade and get into collection wind unit with restriction air admission first air intake and second air intake, further restrain spray tube spun wind-force size, further make the material spray more even.

2. An agricultural unmanned aerial vehicle according to claim 1, wherein the air delivery unit (250) comprises an organ (251) communicated with the first air inlet and the first air inlet, the organ is communicated with an air delivery pipe (252), one end of the air delivery pipe is connected with the air organ, and the other end of the air delivery pipe is communicated with the first air cavity.

3. An agricultural drone according to claim 2, characterised in that the second wind chamber is provided with a regulator (142) to regulate the wind force to regulate the drag.

4. An agricultural unmanned aerial vehicle according to claim 3, wherein the first air inlet and the second air inlet are provided with a first wind collecting plate and a second wind collecting plate at edges thereof so that sufficient wind force can enter the first air inlet and the second air inlet.

5. An agricultural unmanned aerial vehicle according to claim 4, wherein two ends of the organ are communicated with the first air inlet and the second air inlet, and the middle of the organ is communicated with the air delivery pipe (252).

6. An agricultural drone according to claim 5, wherein the first and second blades are triangular in plan section.

Technical Field

The invention relates to the field of unmanned aerial vehicles.

Background

The unmanned plane is called unmanned plane for short, and is an unmanned plane operated by radio remote control equipment and a self-contained program control device. The machine has no cockpit, but is provided with an automatic pilot, a program control device and other equipment. The personnel on the ground, the naval vessel or the mother aircraft remote control station can track, position, remotely control, telemeter and digitally transmit the personnel through equipment such as a radar. The aircraft can take off like a common airplane under the radio remote control or launch and lift off by a boosting rocket, and can also be thrown into the air by a mother aircraft for flying. During recovery, the aircraft can land automatically in the same way as the common aircraft landing process, and can also be recovered by a parachute or a barrier net for remote control. Can be repeatedly used for many times. The method is widely used for aerial reconnaissance, monitoring, communication, anti-submergence, electronic interference and the like.

Unmanned aerial vehicle also obtains more and more extensive application in the agricultural, can carry out seed scattering, the pesticide sprays by a large scale, but unmanned aerial vehicle often blocks up when spraying, wants to borrow air wind power to draw wind occasionally, but because the instability of air wind power, leads to spraying inhomogeneously.

Disclosure of Invention

The invention provides an agricultural unmanned aerial vehicle which is characterized by comprising a machine body, a wind collecting unit and a spraying unit, wherein the wind collecting unit and the spraying unit are positioned on the machine body, the machine body comprises a central piece, four connecting rods and a pair of lifting frames are respectively connected to the central piece, a propeller is arranged at the tail end of each connecting rod, the wind collecting unit comprises a rotating arm, a first blade and a second blade, the first blade and the first blade are connected to the rotating arm, the rotating arm is connected with the central piece and can freely rotate relative to the central piece so that the first blade and the second blade can adjust the direction according to the wind direction, a first air inlet and a second air inlet are respectively arranged on the outer side edges of the first blade and the second blade, the first air inlet and the second air inlet are both connected with a wind conveying unit, a first air cavity is arranged inside the rotating arm, a second air cavity is arranged in the central piece, the wind collecting unit is communicated with the first air cavity, and the second, the spraying unit is provided with a material cavity, the material cavity is provided with a spraying opening, the spraying unit is also provided with a spraying pipe, one end of the spraying pipe is communicated with the second air cavity, the other end of the spraying pipe is positioned at the spraying opening, and the air conveying unit sprays flowing wind power entering through the first air inlet and the second air inlet out of the tail end opening of the spraying pipe through the first air cavity and the second air cavity so as to drive the material in the material cavity to be sprayed out of the spraying opening; be equipped with the spring between first blade and the second blade so that first blade and second blade have opening trend, make contained angle diminish when unmanned aerial vehicle's wind-force is great between first blade and the second blade and get into collection wind unit with restriction air admission first air intake and second air intake, further restrain spray tube spun wind-force size, further make the material spray more even. The air delivery unit comprises an organ communicated with the first air inlet and the first air inlet, the organ is communicated with an air delivery pipe, one end of the air delivery pipe is connected with the wind organ, and the other end of the air delivery pipe is communicated with the first air cavity. And the second wind cavity is provided with a regulator for regulating wind power so as to regulate resistance. The edges of the first air inlet and the second air inlet are provided with a first wind collecting plate and a second wind collecting plate so that enough wind power can enter the first air inlet and the second air inlet. Two ends of the organ are communicated with the first air inlet and the second air inlet, and the middle of the organ is communicated with the air delivery pipe.

The top section of the first blade and the second blade is a triangular structure.

Drawings

Figure 1 is a schematic view of the drone of the present invention;

FIG. 2 is a schematic view of a wind collection unit and a spray unit;

FIG. 3 is a schematic view of a spray unit;

FIG. 4 is a schematic view of a wind collection unit;

FIG. 5 is a schematic view of a first blade and a second blade;

FIG. 6 is a schematic view of a preferred spray unit;

FIG. 7 is a schematic view of a motor;

the labels in the figure are: 1-labeled in the figure: 100-machine body, 110-propeller, 120-connecting rod, 130-lifting frame, 140-central piece, 141-second air cavity, 142-regulator, 200-wind collecting unit, 210-rotating arm, 220-first air cavity, 230-first blade, 231-first air inlet, 232-first wind collecting plate, 240-second blade, 241-second air inlet, 242-second wind collecting plate, 250-wind conveying unit, 251-organ, 252-wind conveying pipe, 300-spraying unit, 310-spraying opening, 320-spraying pipe, 330-connecting plate, 340-fixing plate, 350-motor, 360-driving shaft, 370-arc plate, 380-material cavity, 390-sealing plate and 400-rotating shaft.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the invention discloses an agricultural unmanned aerial vehicle, which comprises a machine body 100, and a wind collecting unit 200 and a spraying unit 300 which are positioned on the machine body 100, wherein the machine body 100 comprises a central piece 140, the central piece is respectively connected with four connecting rods 120 and a pair of lifting frames 130, the tail ends of the connecting rods are provided with propellers 100, the propellers 100 provide flying power for the unmanned aerial vehicle, the central piece is a main frame part of the unmanned aerial vehicle, and components such as a controller, a power supply and the like are arranged in the central piece. The air collecting unit collects air flow above the unmanned aerial vehicle and conveys the air flow to the spraying unit 300 to provide certain spraying power for the spraying unit, as shown in fig. 3, the spraying unit is provided with a material cavity 380, the material cavity is provided with a spraying opening 310, the spraying unit is also provided with a spraying pipe 320, the collected air flow is sprayed out through the tail end of the spraying pipe opening, and then the material in the material cavity is guided to be sprayed out, the spraying speed of the material in the spraying mode is related to the size of the air flow, the larger the air flow is, the faster the material spraying speed is, and the larger the air flow speed is, the larger the air flow speed is, the smaller the air flow sprayed out by the spraying pipe is, so that the spraying is influenced by the air flow, and the spraying is not uniform.

Therefore, in the improved scheme, the wind collecting unit includes a rotating arm 210, a first blade 230, and a second blade 240, the first blade and the first blade are connected to the rotating arm 210, the rotating arm and the center piece are connected 140 and can freely rotate (rotate around a shaft 400 as shown in fig. 4) relative to the center piece, a bearing can be disposed between the specific rotating arm and the center piece, so that the first blade and the second blade can adjust the direction according to the wind direction, so that wind can be collected all the time regardless of the wind direction, the outer sides of the first blade and the second blade are respectively provided with a first wind inlet 231 and a second wind inlet 241, the first wind inlet and the second wind inlet are both connected with the wind conveying unit 250, the first wind cavity 220 is disposed inside the rotating arm, the second wind cavity 141 is disposed in the center piece, the wind collecting unit is communicated with the first wind cavity, the first wind cavity is communicated with the second wind cavity, the spraying unit is provided with a material cavity 380, the material cavity is provided with a spraying opening 310, the spraying unit is also provided with a spraying pipe 320, one end of the spraying pipe is communicated with the second air cavity, the other end of the spraying pipe is positioned at the spraying opening, and the air conveying unit sprays flowing wind power entering through the first air inlet and the second air inlet out of the tail end opening of the spraying pipe through the first air cavity and the second air cavity so as to drive the material in the material cavity to be sprayed out of the spraying opening;

be equipped with the spring between first blade and the second blade so that first blade and second blade have opening trend, make contained angle diminish when unmanned aerial vehicle's wind-force is great between first blade and the second blade and get into collection wind unit with restriction air admission first air intake and second air intake, further restrain spray tube spun wind-force size, further make the material spray more even.

In a preferred embodiment, the air delivery unit 250 includes an organ 251 communicated with the first air inlet and the first air inlet, the organ is communicated with an air delivery pipe 252, one end of the air delivery pipe is connected with the organ, and the other end of the air delivery pipe is communicated with the first air cavity. The organ is elastic and can adapt to the change of an included angle between the first blade and the second blade, two ends of the organ are communicated with the first air inlet and the second air inlet, and the middle of the organ is communicated with the air delivery pipe (252).

In a preferred embodiment, the second wind chamber is provided with a regulator 142 for regulating wind force to adjust the resistance, which is similar to the existing structure for regulating tap water, and is mainly adjusted by increasing or decreasing the resistance. When larger materials are needed for some scattering, the resistance adjusted by the adjuster 142 is small to increase the size of the air ejected and increase the scattering density.

In a preferred scheme, the edges of the first air inlet and the second air inlet are provided with a first wind collecting plate and a second wind collecting plate so as to enable enough wind power to enter the first air inlet and the second air inlet, and mainly enable the wind power entering the air inlets to be large so as to provide enough power for spreading.

In a preferred embodiment, the first and second blades have a triangular cross-section as shown in fig. 5.

In a modified embodiment, as shown in fig. 2, the end of the nozzle 320 is provided with two connecting plates 330, the two connecting plates 330 are symmetrically arranged, the connecting plates 330 are arranged to be thin to prevent the material from scattering, and the connecting plates can also be arranged to be thin column-shaped structures, and are usually made of metal materials such as iron. The two connecting plates are jointly connected with a fixing plate 340, the fixing plate 340 is of a plate-shaped structure, the preferential setting is a circular plate, the fixing plate is provided with a motor 350, the motor 350 is positioned on the lower side surface of the fixing plate 340, the motor 350 can be remotely controlled, the motor 350 is driven to be connected with a driving shaft 360, the driving shaft is connected with the motor 350 and driven to rotate by the motor 350, the tail end of the driving shaft is connected with an arc plate 370, the arc plate 370 is fixedly connected with the driving shaft, the arc plate is provided with a concave surface and a convex surface, the concave surface faces downwards, the convex surface faces upwards, the arc plate is positioned between the two connecting plates 330, a sealing plate 390 is connected on the spray nozzle, the sealing plate is hinged with the spray nozzle, the hinged part is a hinged shaft, the sealing plate can rotate relative to the hinged shaft to open or seal the spray nozzle, a spring is arranged on the hinged, and then make the material impact of material chamber on the arc convex surface through spray tube spun air current, the arc can be rotated by motor drive, and then with the material scattering all around. The material is solid material seed. The nozzle passes through the material chamber 380, and the end of the nozzle is located in the spray opening. In the modified unit that sprays, the closing plate will spray the mouth sealed under the elasticity effect under the natural state, the material can not fall down, unmanned aerial vehicle rises to the air the back, long-range regulator 142 of opening, the air current is followed the spray tube blowout, the air current makes the closing plate open, the material falls down, and under the drive of air current, strike arc 370 surface, wherein the rotation rate of different positions on the arc is different (marginal velocity is big), make the impact force of the arc that strikes the above-mentioned material and receive different, the speed of material scattering is different, what the speed is big scatters is farther, what the speed is little scatters more, make scattering more even, the radiating area is big, and the flow of material whereabouts can be adjusted its 142 control, the resistance is smaller, the material flows greatly, jet density is big. The invention does not need a separate switch device, and the sealing plate can be automatically opened when the air flow is opened, thereby having simple structure.