Precision anti-blocking liquid fertilizing gun

Abstract

The invention relates to a precision anti-blocking liquid fertilizing gun. The fertilization gun comprises a switch combination, a liquid measuring barrel, a gun bar and a gun head, wherein the liquid measuring barrel, the gun bar and the gun head are communicated in sequence. A distribution chamber, which is divided into an upper chamber and a lower chamber by a water discharging plunger piston, is disposed in the upper part of the liquid measuring barrel. The upper chamber is provided with a fertilizing amount adjusting device. The side wall of the distribution chamber is provided with a general water inlet pipe, and a lower-chamber water inlet pipe communicated with the lower chamber. The general water inlet pipe is communicated with the upper chamber through an upper-chamber water inlet pipe. A controlling plunger piston, the top of which is connected to the switch combination through a connecting rod, is disposed in the distribution chamber. The side of the gun head is provided with a water outlet. An anti-blocking plunger piston, which is connected with the controlling plunger piston through an anti-blocking connecting rod, is disposed inside the gun head. When the switch combination is normally opened and is not working, the controlling plunger piston is at the bottom of the distribution chamber, the lower-chamber water inlet pipe is communicated, the upper chamber and the lower chamber are in a pressure balance, the water discharging plunger piston is at the highest position and the anti-blocking plunger piston closes the water outlet. When the switch combination is closed and fertilization is performed, the lower-chamber water inlet pipe is closed by the controlling plunger piston, the pressure in the upper chamber is larger than the pressure in the lower chamber, the water discharging plunger piston is moving downward, the anti-blocking plunger piston is moving upward and the water outlet is opened.

Description

technical field [0001] The invention belongs to the field of agricultural fertilizing machinery, and in particular relates to a precision anti-clogging liquid fertilizing gun. Background technique [0002] In the past, farmers topdressed crops with dry chemical fertilizers using hole application. Using this traditional method of hole application to topdress fruit trees is not only time-consuming and laborious, but it is also easy to dig off many tree roots when digging holes. In addition, dry chemical fertilizers applied to holes are likely to burn some of the roots, and more importantly, solid chemical fertilizers The decomposition rate in the soil is slow. When topdressing fertilizers, not only cannot provide sufficient nutrients for plants in time, but also cause waste of fertilizers and pollute the soil. According to tests, the effective utilization rate of chemical fertilizers in traditional fertilization is only about 30%, and most of the active ingredients are slowly...

AI Technical Summary

Problems solved by technology

The disadvantages of this kind of fertilizing gun are: complex structure and high cost; the insertion depth of the gun head into the soil layer is not easy to control; insufficient pressure of the fertilizing gun makes fertilization more difficult; the amount of fertilizer solution cannot be effectively controlled; The blockage of the nozzle of the fertilization gun leads to slow fertilization, which is labor-intensive and time-consuming

On the original basis, in view of the insufficient pressure and insertion depth of the fertilization gun, a high-pressure liquid fertilization gun was born. This type of fertilization gun is equipped with a high-pressure pump device to provide pressure for the fertilization gun and solve the problem of the fertilization depth of the fertilization gun. Problems, the existing disadvantages are: the device is more complicated, the cost is high, and the amount of liquid fertilizer cannot be controlled, and it is easy to block the gun head

In order to continuously reduce costs and improve functions, the structure of the new fertilization gun has been simplified and many functions have been improved, but it still cannot accurately control the amount of fertilization and prevent the water outlet hole from being blocked by the soil.

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