Agricultural spraying device of helicopter

Abstract

The invention discloses an agricultural spraying device of a helicopter. A charging port is formed behind the upper surface of a water tank. An outlet of an electric centrifugal pump is connected with an inlet of a three-way magnetic valve, and an outlet formed in one end of the three-way magnetic valve is connected with a backflow connector I and a backflow connector II on the water tank through a backflow hose I and a backflow II to form a backflow pipeline. An outlet formed in the other end of the three-way magnetic valve is connected with a filter installed on a middle spraying rod through a spraying hose to form a spraying pipeline. A balancing tank is installed in the water tank, an emergency throw-releasing valve is installed on the lower surface of the water tank, and a throw-releasing actuator and the electric centrifugal pump are installed at the front end of the water tank. A pressure controller and a control handle are connected to the electric centrifugal pump, the three-way magnetic valve and the throw-releasing actuator respectively through a control box. The agricultural spraying device has the advantages of having spraying, stirring, emergency throw-releasing and spraying pressure regulation functions and being simple in operation.

Description

technical field [0001] The invention relates to the field of agricultural spraying equipment, in particular to a helicopter agricultural spraying equipment. Background technique [0002] China is a large agricultural country, and it is also one of the countries where pests and diseases frequently occur in the world. At present, the main pesticide application equipment used in my country is small knapsack sprayer, which has the advantages of high labor intensity, large amount of agricultural chemicals, The problem of low operating efficiency; while helicopter spraying has the advantages of fast operating speed, strong assault capability, less pesticide use, and good control effects, and the downdraft generated by the flight of the aircraft blows the blades, so that both the front and back of the blades can be sprayed. medicine. [0003] However, the existing helicopter agricultural spraying equipment only has a spraying function during operation; it does not have a backflow fu...

AI Technical Summary

Problems solved by technology

[0002] China is a large agricultural country, and it is also one of the countries where pests and diseases frequently occur in the world. At present, the main pesticide application equipment used in my country is small knapsack sprayer, which has the advantages of high labor intensity, large amount of agricultural chemicals, The problem of low operating efficiency; while helicopter spraying has the advantages of fast operating speed, strong assault capability, less pesticide use, and good control effects, and the downdraft generated by the flight of the aircraft blows the blades, so that both the front and back of the blades can be sprayed. medicine

[0003] However, the existing helicopter agricultural spraying equipment only has the spraying function during operation; it does not have the backflow function, and the uniformity of the agricultural chemicals cannot be guaranteed; when an emergency occurs, the agricultural chemicals in the water tank cannot be thrown away

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