Backpack type sprayer

Abstract

The invention relates to a backpack type sprayer. The backpack type sprayer comprises a liquid storing cylinder. The backpack type sprayer is characterized in that a liquid feeding port and a pressurizing device are arranged at the top part of the liquid storing cylinder, wherein the liquid feeding port can be sealed; a spray gun connected with a spray head is also placed at the top part of the liquid storing cylinder; a control valve is arranged between the spray gun and the spray head; a connecting pipe is connected with the part of the spray gun, which is in the liquid storing cylinder; the connecting pipe is positioned at the top part of the liquid storing cylinder and is fixed on the inner wall of the liquid storing cylinder; the connecting pipe is communicated with one ends of a plurality of liquid conveying pipes; the other ends of the liquid conveying pipes are positioned at the bottom part of the liquid storing cylinder; a back buckle is arranged at the top part of one side of the outer wall of the liquid storing cylinder; a cushion pad is movably arranged on the outer wall of the liquid storing cylinder at the lower side of the back buckle; a filtering device is arranged at the position where the connecting pipe is in contact with the spray gun; and the pressurizing device is an one-way air inlet valve. The backpack type sprayer has the following advantages that the liquid can be quickly and efficiently fed into the spray gun, so that the labor force is reduced, the pressure of the liquid storing tank on the back of a user using the sprayer for a long time can be reduced, and the spray gun can be effectively prevented from being blocked by impurities.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a knapsack sprayer. Background technique [0002] In the field of agriculture, with the continuous increase of the planting area and the aggravation of diseases and insect pests year by year, sprayers have become an indispensable and important agricultural tool for the prevention and control of diseases and insect pests. A sprayer is a device that uses air suction to turn potions or other liquids into mist and spray them onto other objects evenly. Most of the sprayers on the market are expensive, and the liquid cannot be sprayed out quickly and accurately, which is a waste of labor. Impurities in the liquid are easy to block the nozzle, and after long-term use, the user will feel sore back, which is inconvenient to use and low in efficiency. Therefore, there is an urgent need for an improved technology to solve this problem in the prior art. Contents of the invention [...

AI Technical Summary

Problems solved by technology

Most of the sprayers on the market are expensive, and the liquid cannot be sprayed out quickly and accurately, which is a waste of labor. Impurities in t

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