CN110771588A

CN110771588A - Anti-drift type ultra-low-altitude low-volume agricultural spraying unmanned aerial vehicle

Info

Publication number: CN110771588A
Application number: CN201911056656.4A
Authority: CN
Inventors: 黄晓艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-02-11

Abstract

The invention discloses an anti-drifting type ultra-low altitude low volume agricultural spraying unmanned aerial vehicle, which relates to the technical field of agricultural unmanned aerial vehicles and comprises a machine body, wherein a water tank is installed on the machine body, at least one telescopic U-shaped pipe is vertically arranged in the water tank, one end of the telescopic U-shaped pipe extends to the bottom of the water tank, the other end of the telescopic U-shaped pipe extends to the outer side of the water tank and is communicated with the input end of a centrifugal spray head through a first hose, the bottom end of the telescopic U-shaped pipe is fixedly connected with a connecting pipe, the bottom end of the connecting pipe is fixedly connected with a hanging rod, and the bottom end of. The unmanned aerial vehicle spraying device has the outstanding characteristics that the U-shaped telescopic pipe is stretched through the matching design of the U-shaped telescopic pipe and the floater, and the siphon is realized through the contraction motion of the U-shaped telescopic pipe, so that liquid medicine can be sent to the centrifugal nozzle, the siphon of the U-shaped telescopic pipe in the water tank is triggered by the tension of the liquid, and the unmanned aerial vehicle is sprayed in a certain height.

Description

Anti-drift type ultra-low-altitude low-volume agricultural spraying unmanned aerial vehicle

Technical Field

The invention relates to the technical field of agricultural unmanned aerial vehicles, in particular to an anti-drift type ultra-low altitude low-volume agricultural spraying unmanned aerial vehicle.

Background

Among the prior art, agricultural unmanned aerial vehicle is when spraying, and the liquid medicine that it sprayed out can take place the drift phenomenon. For example { wangchun, wangxu, etc., chemical pesticide spray drift primary influence factor analysis [ J ]. chinese agro-chemistry report, 2016,37(3):82-83, the spray drift is mainly related to the droplet size, velocity, height, etc., wherein the fog drop height has larger influence on drift, when the distance between the unmanned aerial vehicle and crops is smaller, the motion time of the fog drops is very short, the influence by wind force is smaller, even if the fog drops are small, the target can be reached, but the strip-shaped influence appears when the fog drops are too low, so that the liquid medicine is unevenly distributed, particularly for the paddy field, people cannot walk conveniently on one hand, the unmanned aerial vehicle cannot be accurately carried out in a short distance, meanwhile, the unmanned aerial vehicle sprays on the ground to easily cause water wetting and accelerating damage, so that how the agricultural unmanned aerial vehicle sprays at ultra-low altitude and how to set the height for spraying becomes a problem to be solved urgently due to spraying of rice.

Disclosure of Invention

The invention aims to solve the problems and provides an anti-drifting ultra-low altitude low-volume agricultural spraying unmanned aerial vehicle.

In order to achieve the purpose, the invention adopts the following technical scheme:

the water tank is installed on the machine body, a rotor is arranged on the machine body, a centrifugal spray head is installed at the lower end of the rotor, at least one telescopic U-shaped pipe is vertically arranged in the water tank, one end of the telescopic U-shaped pipe extends to the bottom of the water tank, the other end of the telescopic U-shaped pipe extends to the outer side of the water tank and is communicated with the input end of the centrifugal spray head through a first hose, a connecting pipe is fixedly connected to the bottom end of the telescopic U-shaped pipe, a hanging rod is fixedly connected to the bottom end of the connecting pipe, and a floating plate is fixedly connected to the bottom.

Optionally, when the number of the telescopic U-shaped tubes is more than two, all the bottom ends of the telescopic U-shaped tubes are fixedly connected with a horizontally arranged support frame through a connecting rod, and the hanging rod is fixedly connected to the middle of the bottom end of the support frame.

Optionally, sliding connection has the stop collar on the jib, the bracing piece of a plurality of directional rotors of fixedly connected with on the stop collar, bracing piece and rotor fixed connection.

Optionally, a linear bearing is installed on the limit sleeve, and the limit sleeve and the suspension rod are connected in a sliding manner through the linear bearing.

Optionally, the telescopic U-shaped pipe comprises a U-shaped pipe adopting a U-shaped structure, a main pipe and a sub pipe;

the sub-pipe is nested in the main pipe in a sliding mode, and the main pipe is nested in the U-shaped pipe in a sliding mode.

Optionally, a gap of 1-5cm is formed between one end port of the telescopic U-shaped pipe located in the water tank and the inner bottom wall of the water tank.

Optionally, a float is arranged on the telescopic U-shaped pipe.

Optionally, the floater adopts a spherical structure and is arranged at the top end of the telescopic U-shaped pipe.

Optionally, support frame, connecting rod and jib all adopt hollow structure, and the three intercommunication, the connecting rod passes through the air inlet intercommunication of second hose and centrifugal nozzle, jib bottom and kickboard bottom parallel and level and with external intercommunication.

Compared with the prior art, the invention has the following advantages:

the invention has the outstanding characteristics that the U-shaped telescopic pipe is stretched through the matching design of the U-shaped telescopic pipe and the floater, and the siphon is realized through the contraction motion of the U-shaped telescopic pipe, so that the liquid medicine can be sent to the centrifugal nozzle, the siphon of the U-shaped telescopic pipe in the water tank is triggered by the tension of the liquid, and the unmanned aerial vehicle can spray in a certain height.

When unmanned aerial vehicle accident falls, kickboard and jib can support unmanned aerial vehicle again, play safety protection's effect, under this protection, have improved unmanned aerial vehicle because of the protective properties of unexpected troubles such as electric power is not enough, the scrapped emergence of complete machine intaking that has significantly reduced.

In the second embodiment of the invention, the liquid in the rice pool is pumped into the centrifugal spray head, on the one hand, the spraying amount is increased and the anti-drifting effect is better, and on the other hand, the drifting caused by evaporation is reduced by increasing the air humidity on the basis of the first embodiment.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of the telescopic tube of the present invention;

fig. 3 is a schematic structural diagram of a second embodiment of the present invention.

In the figure: 1 organism, 2 rotors, 3 water tanks, 4 bracing pieces, 5 stop collars, 6 telescopic U-shaped pipes, 61U-shaped pipes, 62 mother pipes, 63 son pipes, 64 floats, 7 first hoses, 8 support frames, 9 connecting rods, 10 suspenders, 11 floating plates, 12 centrifugal nozzles and 13 second hoses.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1 to 2, a power module, a control module and a signal transceiver module are installed in a body 1, and drive a rotor 2 to rotate, which is not redundant in the prior art.

Install water tank 3 on organism 1, be provided with rotor 2 on organism 1, centrifugal spray 12 is installed to the lower extreme of rotor 2, and is provided with the air inlet on the centrifugal spray 12 to prevent that centrifugal spray 2 from passing through the flexible pipe 6 suction of U type, the vertical flexible U type pipe 6 that is provided with at least one in the water tank 3 with the liquid medicine in the water tank 3 when the operation.

Referring to fig. 2, specifically, the telescopic U-shaped pipe 6 comprises a U-shaped pipe 61 adopting a U-shaped structure, a main pipe 62 and a sub-pipe 63, and the connection modes are as follows: the sub-pipe 63 is slidably nested in the main pipe 62, and the main pipe 62 is slidably nested in the U-shaped pipe 61, so that the three are slidably connected.

Be provided with float 64 on flexible U type pipe 6, float 64 adopts spherical structure, and sets up on the top of flexible U type pipe 6, and spherical structure is convenient for laminate in the hump department of flexible U type pipe 6, and float 64's effect lies in: when the floating plate 11 is not in contact with the liquid level, the U-shaped telescopic pipe 6 overcomes the gravity of the U-shaped telescopic pipe 6, the connecting pipe 9, the support frame 8, the suspender 10 and the floating plate 11 under the buoyancy action of the floater 64, so that the hump at the top end of the telescopic U-shaped pipe 6 is always positioned above the liquid level, the other section of the telescopic U-shaped pipe 6 is an air section, and siphon triggering in a normal state is prevented. The buoyancy of the float 64 may be increased or decreased by changing the surface area.

One end of the telescopic U-shaped pipe 6 extends to the bottom of the water tank 3, and a gap of 1-5cm is formed between the end port of the telescopic U-shaped pipe 6, which is positioned in the water tank 3, and the inner bottom wall of the water tank 3.

The other end of the telescopic U-shaped pipe 6 extends out of the water tank 3 and is communicated with the input end of the centrifugal nozzle 12 through a first hose 7, and the bottom end of the telescopic U-shaped pipe 6 is fixedly connected with a connecting pipe 9.

The bottom end of the connecting rod 9 is fixedly connected with a suspender 10, the bottom end of the suspender 10 is fixedly connected with a floating plate 11, and foam plastics can be adopted.

When the number of the telescopic U-shaped pipes 6 is more than two, the bottom ends of some telescopic U-shaped pipes 6 are fixedly connected with a support frame 8 which is horizontally arranged through a connecting rod 9, and a suspender 10 is fixedly connected in the middle of the bottom end of the support frame 8. In this embodiment, the support frame 8 is provided to support and balance the plurality of telescopic U-shaped tubes 6.

Sliding connection has stop collar 5 on jib 10, the bracing piece 4 of a plurality of directional rotors 2 of fixedly connected with on the stop collar 5, bracing piece 4 and rotor 2 fixed connection, spacing effect has been played in setting up of stop collar 5, make jib 10 can only be along sharp up-and-down motion, install linear bearing on the stop collar 5, through linear bearing sliding connection between stop collar 5 and the jib 10, linear bearing's setting becomes rolling friction with sliding friction, sliding mechanical efficiency has been improved.

Unmanned aerial vehicle rises to the air through rotor 2, and after rising to the air, kickboard 11 does not contact with the liquid level, and float 64 overcomes the gravity of kickboard 11 and connecting piece between the two and drives the flexible pipe 6 of U type and extend, and the hump department of the flexible pipe 6 of U type is located the upside of liquid level for flexible U type pipe opposite side is the air section, can't trigger the siphon, thereby has avoided centrifugal spray head 12 to go out water, causes the waste.

When the unmanned aerial vehicle descends to a low enough level, and when the floating plate 11 is in contact with the liquid surface, under the action of the tension of the liquid surface, the U-shaped pipe 61 can be subjected to the tension from the floating plate 11, under the tension, the U-shaped pipe 61, the main pipe 62 and the sub-pipe 63 contract, the buoyancy of the floater 64 is further overcome, so that the hump of the U-shaped pipe 61 moves to a position below the liquid surface of the water tank 3, according to the principle of a communicating device, the liquid in the U-shaped pipe 61 passes through the hump, enters the main pipe 62 and the sub-pipe 63 and triggers siphoning, and enters the centrifugal nozzle 12 along the first hose 6 to be sprayed, so that the centrifugal nozzle 12 can spray in an ultra-low altitude mode in the contact range of the floating plate 11 and the liquid surface, the drifting during liquid spraying is greatly.

When unmanned aerial vehicle accident falls, kickboard 11 and jib 10 can support unmanned aerial vehicle again, play safety protection's effect, under this protection, have improved unmanned aerial vehicle because of the protective properties of sudden failures such as electric power is not enough, the complete machine that has significantly reduced the condemned emergence of intaking.

Example two

In this embodiment, on the basis of the first embodiment, the following settings are further performed: support frame 8, connecting rod 9 and jib 10 all adopt hollow structure, and the three intercommunication, and connecting rod 9 communicates through the air inlet of second hose 13 with

centrifugal nozzle

12, and 10 bottoms of jib and 11 bottoms parallel and level of kickboard and communicate with the external world.

Because the centrifugal nozzle 12 will form negative pressure at the nozzle when moving, in this embodiment, when the floating plate 11 is not in contact with the liquid surface of the rice pool, the air inlet in embodiment 1 can be replaced by communicating the suspension rod 10 with the outside to balance the air pressure; when the floating plate 11 is in contact with the liquid surface of the rice pool, the suspension rod 10 can be sucked into the liquid in the rice pool under negative pressure and further mixed with the liquid medicine in the water tank 3, so that the spraying amount is increased, the anti-drifting effect is better, and the drifting caused by evaporation is reduced by increasing the air humidity.

While the foregoing disclosure shows illustrative embodiments of the invention, it should be noted that various changes and modifications could be made herein without departing from the scope of the invention as defined by the appended claims. The functions, steps and/or actions of the method claims in accordance with the embodiments of the invention described herein need not be performed in any particular order. Furthermore, although elements of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.

Claims

1. The utility model provides a prevent spouting agricultural unmanned aerial vehicle of low latitude low volume of drift, includes organism (1), its characterized in that: install water tank (3) on organism (1), be provided with rotor (2) on organism (1), centrifugal spray nozzle (12) are installed to the lower extreme of rotor (2), and are provided with the air inlet on centrifugal spray nozzle (12), vertically in water tank (3) be provided with at least one flexible U type pipe (6), the one end of flexible U type pipe (6) extends to the bottom of water tank (3), the other end of flexible U type pipe (6) extends the outside of water tank (3) to input intercommunication through first hose (7) and centrifugal spray nozzle (12), the bottom fixedly connected with connecting pipe (9) of flexible U type pipe (6), the bottom fixedly connected with jib (10) of connecting rod (9), the bottom fixedly connected with kickboard (11) of jib (10).

2. The anti-drifting ultra-low altitude low volume agricultural spraying unmanned aerial vehicle of claim 1, characterized in that when the number of the telescopic U-shaped pipes (6) is more than two, the bottom ends of all the telescopic U-shaped pipes (6) are fixedly connected with a horizontally arranged support frame (8) through a connecting rod (9), and the hanger rod (10) is fixedly connected to the middle of the bottom end of the support frame (8).

3. The anti-drifting ultra-low altitude low volume agricultural spraying unmanned aerial vehicle of claim 1, characterized in that a stop collar (5) is connected on the boom (10) in a sliding manner, a plurality of support rods (4) pointing to the rotor (2) are fixedly connected on the stop collar (5), and the support rods (4) are fixedly connected with the rotor (2).

4. The anti-drift ultra-low altitude low volume agricultural spraying unmanned aerial vehicle of claim 3, wherein the stop collar (5) is provided with a linear bearing, and the stop collar (5) is connected with the suspension rod (10) in a sliding manner through the linear bearing.

5. The anti-drift type ultra-low altitude low volume agricultural spray unmanned aerial vehicle of claim 1, wherein the telescopic U-shaped pipe (6) comprises a U-shaped pipe (61) adopting a U-shaped structure, a main pipe (62) and a sub-pipe (63);

the sub-pipe (63) is slidably nested in the main pipe (62), and the main pipe (62) is slidably nested in the U-shaped pipe (61).

6. The anti-drift type ultra-low altitude low volume agricultural spraying unmanned aerial vehicle according to claim 1, wherein a gap of 1-5cm is provided between one end port of the telescopic U-shaped pipe (6) positioned in the water tank (3) and the inner bottom wall of the water tank (3).

7. The unmanned aerial vehicle for agricultural spraying of low volume of preventing excursion formula ultralow altitude according to claim 1, characterized in that float (64) is provided on telescopic U-shaped pipe (6).

8. The unmanned aerial vehicle for agricultural spraying of low volume of preventing drifting type ultra-low altitude of claim 7, characterized in that, the float (64) adopts spherical structure, and sets up in the top of flexible U type pipe (6).

9. The anti-drifting ultra-low altitude low volume agricultural spraying unmanned aerial vehicle of claim 7, wherein the support frame (8), the connecting rod (9) and the suspension rod (10) are all hollow structures and are communicated with each other, the connecting rod (9) is communicated with an air inlet of the centrifugal nozzle (12) through a second hose (13), and the bottom end of the suspension rod (10) is flush with the bottom end of the floating plate (11) and is communicated with the outside.