Take a sample with a soil drill bit, insert it directly into the sediment, rotate the handle, pull it up, use a scraper to take out the soil sample, use a transparent organic glass sampling tube to take a sample, assemble it, slowly rotate and insert it into the riverbed sludge, pull it up, use a tool to remove the two ends of the glass tube, and use a piston rod to push out the sample. The sediment column sampler is used to sample from the bottom of soft, sandy, and moderately hard water bodies. The use of sediment column sampler is very simple. Samples can be taken from both shallow and deep waters. Connect the extension rod and T-shaped handle according to the actual situation, and push the piston to the bottom of the sampling tube before sampling. After determining the sampling location, insert the sampling tube vertically into the water and feel that it is not sinkingPiston type cylindrical sediment samplerRaise it by about 10-20 centimeters, and then determine the new sampling point by 10-20 centimeters in front, back, left, and right.

Piston type cylindrical sediment samplerThe main features are light weight, easy to carry, and free from the trouble of manual soil collection. The electric motor rotates to collect soil while the main unit remains stationary. By using an extended connecting rod and a hammer head at the top, it is possible toPiston type cylindrical sediment samplerInserting into the mud and using a piston can avoid compression issues on the sample. Before sampling, install the piston in the cutting head. When the cutting head is located on the sediment, the piston is held at a fixed height by a rope. When the sampling tube descends, the piston remains stationary. The sampling tube is pushed into the sediment and surrounds the piston. The compression caused by friction is counteracted by the reaction of partial vacuum. For tubular samplers without piston structures, due toPiston type cylindrical sediment samplerThe frictional force between sediment and sediment, as well as the self weight of sediment samples, often cause disturbances such as shortened sample length or bending deformation during sampling. For this purpose, a piston structure can be installed inside the sample cylinder to counteract the frictional force between the sample tube wall and the sample, as well as the sample's own weight.