Rapid sampling device for soil acidity and alkalinity detection

The utility model relates to the technical field of rapid sampling devices, and discloses a soil acidity and alkalinity detection rapid sampling device which comprises a bottom plate, a supporting frame and a sampling barrel, the supporting frame is welded to the top end of the bottom plate, through holes are formed in the middle of the bottom end of the bottom plate and the middle of the inner bottom wall of the supporting frame, and the sampling barrel is located in the supporting frame; the bottom end of the sampling barrel movably penetrates through a through hole formed in the middle of the bottom end of the bottom plate, a hexagonal nut is welded to the middle of the top end of the supporting frame, a threaded rod penetrates through internal threads of the hexagonal nut, and the bottom end of the threaded rod rotationally penetrates through a through hole formed in the middle of the inner bottom wall of the supporting frame. According to the scheme, the crank is rotated, the connecting rod is used for d