Low-volume spray head of sprayer duster

Abstract

The invention relates to a low-volume spray head of a sprayer duster. The low-volume spray head is provided with a low-volume spray pipe, wherein a connecting piece is arranged on the upper end of a liquid conveying pipe of the low-volume spray pipe; the connecting piece is connected with a low-volume nozzle; the outer wall of the connecting piece is provided with a vane wheel through a bearing; vanes are arranged on the vane wheel; the upper end of the vane wheel is provided with a nozzle cap; water throwing holes are formed on the upper edge of the nozzle cap; and the inner chamber and the water throwing holes of the nozzle cap are communicated with water outlet holes and the liquid conveying pipe of the low-volume nozzle. Droplet particles which are finally sprayed on farm crops are extreme small after pesticide liquid in the nozzle is collided and primarily scattered at the inner wall of the nozzle cap spread from the center of the inner chamber of the nozzle cap to the outside and thrown out of the water throwing holes under centrifugal force and wall attachment effect, and further smashed by a high-speed air flow and the like, so the atomization effect is good; as the droplets are very light, the droplets can be sent further by the air flow, and are easy to adhere to the surface of stems and leaves and body surfaces of insects; and the low-volume spray head of the sprayer duster reaches larger spraying covering area and better insecticidal effect, and reduces environmental pollution at the same time.

Description

technical field [0001] The invention relates to a spray head, in particular to a low-volume spray head of a spray duster, which belongs to the technical field of agricultural plant protection machinery. Background technique [0002] When spraying pesticides on crops, if the sprayed droplets have large particles, the droplets will easily slide down the stems and leaves of the crops under the action of their own gravity, which will not only reduce the utilization rate of pesticides and pollute the surrounding environment, but also have a relatively low insecticidal effect. Difference. In order to solve this problem, once someone has designed spray nozzles with smaller droplet particles and good atomization effect, as the patent document of Chinese Patent No. ZL200820031789. The splitter cone in the spout, the liquid medicine pipe passing through the spout, and the impeller connected to the shaft passing through the splitter cone; the blades of the impeller are distributed on ...

AI Technical Summary

Problems solved by technology

But this kind of nozzle has no micro nozzle, no jet device, only rely on liquid medicine switch to control the liquid flow, the flow control is not accurate enough, the flow rate is too large, and the liquid outlet hole of the nozzle does not rotate, although it is evenly distributed on the outside of the splitter cone There are multiple liquid outlet holes, but under the action of gravity, the liquid flow will flow out from the lower hole, resulting in uneven flow of each liquid outlet hole, and uneven mist droplets. At the same time, the liquid flow only passes through the distribution and Crushing and tearing of the impeller, its atomization effect is limited

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