Hand-operated undisturbed soil sampling device

Abstract

A hand-operated undisturbed soil sampling device comprises a soil sampling barrel, a supporting barrel and a hand-operated handle. The soil sampling barrel is composed of a cutting ring and a drill rod, the drill rod is Y-shaped, the upper end of the drill rod is provided with a horizontally-through screw hole, the lower end of the drill rod is located in the center of the top of the cutting ring,and the cutting ring and the drill rod are integrally formed. The supporting barrel is composed of a barrel body with a flange and a supporting frame, the supporting frame is arranged on the side edge of the flange of the barrel body, the supporting frame is in a Y shape, a horizontally through screw hole is formed in the upper end of the supporting frame, and the barrel body and the supporting frame are integrally formed. Compared with a knocking mode in which the cutting ring is pressed into a soil layer, the hand pressing mode is small in disturbance, more stable, not prone to deviation and high in effect; and meanwhile, the left end of the hand-operated handle is fixed, the drill rod is located on the left side of the hand-operated handle fixing point and the pressing action point andclose to the fixing point, and labor is saved. The hand-operated handle is detachable, the same connecting rods can be increased or decreased according to the actual situation, and meanwhile carryingis convenient.

Description

technical field [0001] The invention relates to a soil fetching device, in particular to a hand-operated undisturbed soil fetching device with high efficiency and less disturbance. Background technique [0002] Soil is composed of solid, liquid and gas phases such as minerals, organic matter produced by the decomposition of animal and plant residues, water and air. The soil nutrients, moisture, pH, etc. are usually measured on the soil. Before the measurement, the undisturbed soil sampling is required. The traditional method of soil extraction is: directly pressing the ring knife down into the soil layer by hand. If you encounter a hard soil layer, you can only knock the ring knife into the soil layer to take samples by tapping the drill pipe on the soil extractor. In the knocking process, the knocking is inaccurate, the force is uneven, and the ring knife is sideways, so the undisturbed soil obtained can not be used, so that the effect of taking soil is low. Contents of ...

AI Technical Summary

Problems solved by technology

During the knocking process, if the knocking is inaccurate, the force is uneven, and the ring knife is sideways, the undisturbed soil obtained cannot be used. In this way, the effect of soil extraction is low

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