Sprayer for farmland

Abstract

The invention discloses a sprayer for a farmland, and relates to novel farmland operation machinery. Key points of the technical scheme in the invention are as follows: the sprayer for the farmland comprises a sprayer body; the sprayer body is provided with a water suction pump, a medicine storage box, an infusion pump, a spray rod, a liquid mixing air pump and a pulse valve; the sprayer body is provided with a liquid mixing box; the sprayer body is provided with a pressure limiting device; the sprayer body is provided with a water inlet channel, a filter net and a hydraulic pressure box; a cavity and a barrier plate are arranged in the hydraulic pressure box; the barrier plate is provided with an adjusting spring; the barrier plate is provided with an adjusting rod; the infusion pump is provided with a communication pipeline; the communication pipeline is provided with a non-rising-stem valve; and the adjusting rod is provided with a driving mechanism. Due to arrangement of the mixingair pump and the liquid mixing box, medicine liquid is sufficiently mixed with a water body, so that the use effect of the medicine liquid is better; due to arrangement of the pressure limiting device, the amount of the medicine liquid sprayed by the sprayer is relatively steady; and, due to arrangement of the hydraulic pressure box, the adjusting rod and the driving mechanism, the mixing ratio of the medicine liquid to the water body can be relatively steady.

Description

technical field [0001] The invention relates to a novel farmland operation machine, in particular to a farmland sprayer. Background technique [0002] Insect control and weed control in farmland are usually carried out by spraying corresponding liquid medicine to eliminate pests and inhibit the growth of weeds. [0003] A sprayer is a machine that disperses a liquid into a mist. It is classified as a plant protection machine for agricultural machinery. It is generally called a sprayer driven by manpower, and a sprayer driven by power (engine, electric motor). [0004] refer to figure 1 with figure 2 , an existing sprayer for farmland, comprising a sprayer body 1, the sprayer body 1 is provided with a water pump 2 for drawing water from the farmland, a medicine storage box 3, an infusion pump 4 for transferring medicinal liquid, a liquid mixing pipe, and a liquid mixing pipe They communicate with the liquid outlets of the water pump 2 and the infusion pump 4 respectively,...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned existing technical solutions have the following defects: after the liquid medicine and the water body are mixed in the liquid mixing pipe, they are immediately sprayed out from the spray rod, and the time for the liquid medicine to contact the water body is relatively short, especially when the concentration of the liquid medicine is high. The mixture between the medicinal liquid and the water body is prone to uneven mixing, and the concentration of each part of the transferred medicinal liquid is different, which affects the use effect of the medicinal liquid

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