Soil sampling and detecting equipment for urban environmental protection engineering

Abstract

The invention discloses soil sampling and detecting equipment for urban environmental protection engineering. The equipment comprises a sleeve, a drill rod, a turntable, a drill bit and a pressure plate, wherein a plurality of groups of sampling ports are formed in a side wall of one end, far away from the turntable, of the drill rod from top to bottom, and a plurality of annular moving grooves are formed in the drill rod; and each annular moving groove is communicated with lower ends of the corresponding group of sampling ports. The equipment is advantaged in that closing of the multiple sampling openings is easy to control, a problem that part of soil enters the drill rod to affect the sampling accuracy when sampling is not needed can be avoided, multiple sets of adjacent sampling openings can be separated in the sampling process, and therefore a problem that part of soil located on the upper portion falls into the sampling opening on the lower portion can be avoided; and meanwhile, closing of the sampling ports and the separation operation among a plurality of groups of sampling ports can be synchronously carried out only by using the same acting force, so use convenience of the detection equipment is effectively improved.

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...

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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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