Air curtain for special pesticide spraying machine for cotton and special pesticide spraying machine for cotton using air curtain

Abstract

The invention provides an air curtain for a special pesticide spraying machine for cotton and a special pesticide spraying machine for cotton using the air curtain. The air curtain for the special pesticide spraying machine comprises a straight air curtain body and an inclined air curtain body, wherein the straight air curtain body and the inclined air curtain body are formed integrally; a retractable seam is formed between the straight air curtain body and the inclined air curtain body; the inclined air curtain body can retract into the straight air curtain body through the retractable seam; a plurality of tapered air outlet tubes are equidistantly arranged on the lower part of the air curtain; the tapered air outlet tubes are fixedly connected with the air curtain; the two air curtain bodies are symmetrically arranged on two sides of a fan; the straight air curtain body is fixedly connected with the fan; a plurality of fixing straps are arranged on one side, which is close to a spraying cantilever, of each air curtain body; the air curtain bodies are connected with the spraying cantilever through the fixing straps; and the fixing straps are arranged equidistantly. The air curtain is easy to mount and convenient to operate; pesticide can be applied to cotton seedlings in different periods; the air curtain can rapidly adapt to different pesticide application areas; efficient ventilation can be realized; the pesticide application efficiency is high; debugging operation is simple and speedy; the cost is low; and the pesticide application area is large.

Description

Technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to an air curtain for a cotton special pesticide applicator and a cotton special pesticide applicator using the air curtain. Background technique [0002] Cotton is an important economic crop in my country. For the application of cotton fields, pure pressure atomizing sprayers are usually used in China to spray the pesticides from above the cotton canopy. The liquid cannot pass through the dense canopy of cotton leaves. , The deposit of liquid medicine in the middle and lower part of the canopy is small, and the effect of pest control is not good. And in cotton field production, in order to achieve fully automatic mechanization, defoliants need to be used before the cotton is harvested. Because defoliants are expensive, the dosage needs to be strictly controlled. The dosage per mu of cotton field is controlled at 30-35KG as needed. However, the existing pure pressure atomi...

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Problems solved by technology

[0005] In order to overcome the problems of high cost, narrow spraying area and low spraying efficiency existing in the prior art, the present invention provides a cotton special spraying machine capable of efficient ventilation, high spraying efficiency, low cost and wide spraying area. Air curtain for medicine machine and special spraying machine for cotton using the air curtain

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