Gear drive type sprayer

Abstract

The invention relates to a gear driven type sprayer which comprises a liquid medicine box. The liquid medicine box is provided with a liquid filling opening and is internally provided with an air chamber, the lower part of the air chamber is provided with a piston pressurizing subassembly which is connected with a rocking bar, and the air chamber is connected with a spray bar through a liquid outlet and a liquid outflow pipe. The gear driven type sprayer is characterized in that the bottom of the liquid medicine box is provided with an installing port which fixes an upper cover through a fixing cover, the upper part of the upper cover is communicated with the air chamber through a one-way valve, the upper cover is internally provided with a piston, the lower part of the upper cover is provided with a liquid inlet hole communicated with the liquid medicine box, and the upper cover is connected with a lower cover; the lower cover is provided with a liquid storage chamber communicated with the liquid inlet hole, the lower cover is internally provided with racks, the upper end of each rack is connected with the piston, and the lower end of each rack is meshed with a gear which is arranged on a transmission shaft and is connected with the rocking bar. By adopting a way that the gear is meshed with the racks to drive a transmission mechanism of the piston, the invention has no lateral abrasion, is labor-saving and convenient to use, and has higher efficiency and long service life.

Description

technical field [0001] The invention relates to a sprayer, in particular to a gear-driven sprayer, which belongs to agricultural plant protection machinery and is mainly used for preventing and controlling diseases and insect pests, sanitation and epidemic prevention and disinfection. Background technique [0002] The sprayer is a commonly used agricultural plant protection machinery. There are many types of sprayers. One of them is a manual knapsack sprayer, which mainly includes a liquid medicine tank. There is a piston, the piston is connected to the rocker through the transmission mechanism, the air chamber is connected to the spray rod through the liquid outlet and the water outlet, and the existing transmission mechanism is to fix the connecting rod on the rocker, and the connecting rod drives the piston, because the fixed point of the connecting rod ( The distance between the fulcrum) and the top of the air chamber is large, so the angle between the two points is larg...

AI Technical Summary

Problems solved by technology

[0002] Sprayer is a commonly used agricultural plant protection machinery. There are many types. One of them is manual knapsack sprayer. It mainly includes a liquid medicine tank. There is a piston, the piston is connected to the rocker through the transmission mechanism, and the air chamber is connected to the spray rod through the liquid outlet and the water outlet pipe. The existing transmission mechanism is to fix the connecting rod on the rocker, and the connecting rod drives the piston. Since the fixed point of the connecting rod ( That is, the distance between the fulcrum) and the top of the air chamber is relatively large, so the angle between the two points is relatively large. The force after the manual operation of the rocker is divided into two mutually perpendicular forces. The longitudinal component makes the piston reciprocate up and down, and the horizontal component The piston rubs against the air chamber, causing greater wear and tear, which not only affects the service life of the air chamber and piston, but also leads to low operating efficiency

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