Application No./Patent No.: 2018103451063 Application date: April 17, 2018.
Inventor/Designer: Yang Heqi, Lin li qu.
The invention belongs to the technical field of digging machines for sowing or planting, and particularly discloses a pit digger for planting fruit trees, which comprises a digging unit, a mixing unit and a mobile trolley, wherein the digging unit comprises a motor, a cylinder machine and a screw rod, and the surface of the screw rod is provided with spiral blades; The output shaft of the motor is connected with a rotating shaft; The rotating shaft is threaded with a push column; A tension spring is connected between the cylinder and the upper part of the precession rod; The mixing unit comprises a hopper, a piston cylinder, a rotary column and a mixing cylinder, wherein the lower part of the piston cylinder extends into the cavity of the rotary column; A rotating mechanism is connected between the output shaft of the motor and the rotary column, the inner wall of the rotary column is provided with a curved groove, a plunger is slidably connected in the piston cylinder, and a convex bar is connected on the bead plug; A sieve plate is slidably connected in the mixing cylinder, and a spring is connected between the sieve plate and the mixing cylinder; The rotating column is provided with a stirring shaft in the mixing cylinder. By using the pit digger, the pit digging efficiency can be improved and the uniformity of subsequent fertilization can be ensured.
