Soil sampling and testing equipment for urban environmental protection projects

Abstract

The invention discloses a soil sampling and testing device for urban environmental protection engineering, which includes a casing, a drill pipe, a turntable, a drill bit and a pressure plate. The side wall of the end of the drill pipe away from the turntable is provided with multiple sets of sampling ports from top to bottom. , the drill rod is provided with a plurality of annular moving grooves, and each annular moving groove communicates with the lower ends of a corresponding set of sampling ports. The advantages are: the closure of multiple sampling ports is easy to control, and it can avoid the problem that part of the soil enters the inside of the drill pipe to affect the sampling accuracy when no sampling is required, and during the sampling process, multiple groups of adjacent sampling ports can be separated, thereby It can avoid the problem that the upper part of the soil falls into the lower sampling port, further ensuring the accuracy of the sampling results. At the same time, the closing of the sampling port and the partition operation between multiple sets of sampling ports can be carried out synchronously only by using the same force , effectively improving the convenience of use of the detection equipment.

Description

technical field [0001] The invention relates to the technical field of environmental protection engineering, in particular to a soil sampling and testing device for urban environmental protection engineering. Background technique [0002] Urban environmental protection engineering refers to projects specifically for urban environmental protection. When performing urban environmental protection engineering operations, it is sometimes necessary to sample and detect urban soil. After retrieval, the patent document with the patent number of CN212780032U discloses a soil sampling and testing equipment. , including casing, drill pipe, drill bit and turntable, the outside of the bottom end of the casing is fixedly sleeved with the pressure plate, the drill pipe is movably installed in the casing, the bottom end of the drill pipe is detachably equipped with a drill bit, and the top end of the drill pipe is The turntable is fixed, and the drill pipe is hollow. [0003] There are fol...

AI Technical Summary

Problems solved by technology

[0004] 1. During the sampling process, multiple sampling ports are always open, which causes some soil to enter the inside of the drill pipe when the drill pipe is drilled down into the soil, which affects the accuracy of sampling;

[0005] 2. When the drill pipe reaches the specified depth for sampling, there is no partition between the sampling ports, so during the sampling process, some of the soil above will fall into the sampling ports below, which will also affect the sampling results

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