A multi-rotor plant protection drone

Abstract

The present invention relates to the field of multi-rotor plant protection drones, specifically a multi-rotor plant protection drone, including a body, a base station, a spraying device, a landing gear and a controller. At the same time, the rotating plate drives the support arm to slide radially along the fuselage plate to realize the contraction of the support arm. The base station is used to provide supplies when the UAV returns. The spraying device and landing gear are installed under the body. And the spraying device is connected with the landing gear through the air pipe, and the controller is used to control the spraying of the spraying device and the retraction of the landing gear. The invention can not only reduce the volume, but also protect the supporting arm during the transportation process. The spraying device adopted can not only reduce its own weight, but also avoid the shaking of the liquid medicine, and can also realize the automatic retraction and retraction of the landing gear.

Description

technical field [0001] The invention relates to the field of multi-rotor plant protection drones, in particular to a multi-rotor plant protection drone. Background technique [0002] In recent years, UAV technology has developed rapidly, and various types of UAVs continue to emerge. The multi-rotor plant protection UAV system has the advantages of dexterity, lightness, hovering, and take-off and landing at any place. Among them, the multi-rotor plant protection UAV It is an electric unmanned multi-rotor aircraft, which uses high-efficiency energy storage batteries as the power source. It can be used for plant protection operations such as pesticide spraying, fogging, spraying, etc. It can also be used for aerial seeding operations such as rice, pasture, and afforestation. It is equipped with a remote video monitoring system. However, the existing plant protection drones also face many problems in the process of use. [0003] On the one hand, the support arm of the multi-rot...

AI Technical Summary

Problems solved by technology

In the process of using the existing plant protection drones, there are also many problems

[0003] On the one hand, the support arm of the multi-rotor plant protection UAV usually protrudes outward relative to the fuselage, which causes inconvenience during transportation. At present, the commonly used method is to disassemble or fold the support arm, but due to many Rotary-wing plant protection drones have many arms and many connecting parts. The installation or disassembly process is more troublesome, and the disassembled parts are easy to lose. The use of man-machines; while the foldable arm is in use, the joint is easy to loosen, and because the arm needs to carry a large load, the reliability of the joint of the arm is required to be high, and the folding Difficulty connecting the arm

In terms of the landing gear commonly used by multi-rotor plant protection drones, one is driven by electricity, and the other is started by cylinders, and electric drive will cause part of the waste of electric energy and shorten the endurance time; the cylinder drive requires compressed air from a compressor. , will also face the consumption of electric energy, which is not conducive to the operation; on the other hand, a large part of the load of the multi-rotor plant protection drone is on the spraying device, and the shaking of the liquid medicine during the flight will affect the flight of the multi-rotor plant protection drone. How to reduce or avoid the shaking of liquid medicine and reduce unnecessary load is an urgent problem to be solved

[0004] In the prior art, a Chinese patent with application number 2016102487622 discloses a plant protection drone, which reduces the shock of the liquid medicine by shortening the return path of the liquid medicine in the medicine box and reducing the impact force, and The baffle is used to further reduce the impact force, but it will still cause the liquid medicine to slosh during its use, and it uses a pharmaceutical pump to provide spraying power, which greatly increases the gravity of the equipment itself, which is not conducive to use; the application number is 2016104671682- A Chinese patent discloses an agricultural plant protection drone, which counteracts its own gravity by filling the gas bag with helium, thereby prolonging the battery life, and adjusting the height of the drone by discharging helium into the atmosphere during work. The use of helium will greatly increase the cost of equipment manufacturing, and the gas bag filled with helium is greatly affected by natural wind, which is not easy to control and cannot solve the problem of liquid medicine shaking

Images