Underground pressure self-sealing constant-pressure liquid injection device

Abstract

The invention provides an underground pressure self-sealing constant-pressure liquid injection device. The underground pressure self-sealing constant-pressure liquid injection device comprises a pressurizing liquid injection mechanism, a pressure self-sealing mechanism and a constant-pressure liquid drainage mechanism. According to the underground pressure self-sealing constant-pressure liquid injection device, water and fertilizer liquid needed by crop irrigation is injected into underground root areas of crops at rated pressure, fixed-point and fixed-pressure irrigation can be effectively carried out on deep underground positions of plant roots, and the underground irrigation efficiency and the water injection rate are improved; and meanwhile, through the self-sealing performance of the device structure, the water and fertilizer liquid can be prevented from overflowing to the ground surface.

Description

technical field [0001] The invention relates to the technical field of underground pressure irrigation, in particular to a device for automatically sealing soil gaps by underground pressure and injecting liquid and fertilizing the soil under constant pressure. Background technique [0002] In the growth process of crops such as fruit trees, water and fertilizer (mixed solution) are important promoting factors. Traditional irrigation generally waters and fertilizes the surface directly. This method cannot target irrigation according to the growth status of crops. The evaporation of surface water is large, and agricultural water is wasted seriously, which is easy to form saline-alkali land. On the other hand, flooding the land surface with water and fertilizer mixture will promote weeds around crops to compete for water and fertilizer, reducing the effective utilization rate of fertilizer. If the water and fertilizer solution is directly applied to the underground roots of cr...

AI Technical Summary

Problems solved by technology

Existing underground irrigation devices are often inserted into the soil through pipes for direct infiltration. The liquid flow rate is slow and the efficiency is low. On the other hand, the liquid will also emerge to the ground along the insertion port, causing the liquid to be on the surface, and the water soaks the plant roots for a long time. The problem is not conducive to the healthy growth of plants

Images