Portable undisturbed soil sampling device

Abstract

The invention discloses a portable undisturbed soil sampling device comprising a supporting frame, a circular ring knife and a force applying rod. The supporting frame comprises a supporting plate, four supporting foot frames and a circular ring guide seat. The circular ring knife can inserted into the circular ring knife guide seat and in a mode of moving up and down. The force applying rod penetrates through the supporting plate from top to bottom to apply force to the circular ring knife in the circular ring guide seat. The four supporting foot frames are uniformly hinged to the lower end face of the supporting plate and can be stored in the four cuboid-shaped side walls of the circular ring knife guide seat. When the four supporting foot frames are stored in the four side walls of the circular ring knife guide seat, carrying is convenient; when the four supporting foot frames are unfolded, the direction of soil entering of the circular ring knife can be stabilized; and the consistency of the force directions of the circular ring is guaranteed through the circular ring knife guide seat, and soil sampling is facilitated.

Description

technical field [0001] The invention relates to a soil sample extraction technology, in particular to a portable undisturbed soil sampling device. Background technique [0002] In the traditional soil sampling, first select the location of excavating the soil profile in the field, then excavate the soil profile, and sample in layers according to the level of the profile. Put the ring cutter holder on the ring cutter of known weight, press the edge of the ring cutter vertically downward into the soil until the ring cutter barrel is full of samples, then use the soil cutter to cut the soil around the ring cutter, and take out the filled sample. For the ring knife of soil, cut off the excess soil at both ends of the ring knife, and wipe off the soil outside the ring knife. Immediately cover both ends of the ring knife to prevent water from evaporating, then weigh and record. The process of capping the two ends of the ring knife is not easy, and it is easy to cause interference...

AI Technical Summary

Problems solved by technology

The process of capping the two ends of the ring knife is not easy, and it is easy to cause interference to the soil sample, and it is easy to separate during subsequent transportation;

[0003] Generally, when sampling in the field, it is generally not suitable to carry too many and heavy tools, so it is very important to set up a portable sampling equipment; and when the general ring knife is pressed into the soil, it needs manual support, and then uses a hammer to strike. In this project It is difficult to maintain the consistency of the force direction of the ring knife, which will cause the sampled soil to fail to meet the requirements, so it is very important to maintain the consistency of the force direction of the ring knife

Images