Drilling and exhausting integrated type geogas sampling device

Abstract

The invention relates to a drilling and exhausting integrated type geogas sampling device. The drilling and exhausting integrated type geogas sampling device comprises a rod body, a hammering pile, a gas suction pipe, a steering device, a gas nozzle and a sealing device, wherein the hammering pile is fixed at an opening of the rod body; the steering device is mounted at the upper part of the rod body and can rotate relative to the rod body; the gas suction pipe is mounted in the rod body; the upper end of the gas suction pipe is fixedly connected with the middle part of the steering device; the sealing device is mounted between the upper part of the gas suction pipe and the rod body; and the gas nozzle is mounted on an inner wall of the top of the gas suction pipe. In a geogas measurement process, after a sampling hole is formed in soil by using a drilling rod, the rod body does not need to be pulled out and can be directly connected with a gas capturing device and an exhausting barrel to directly sample, so that the occurrence of hole collapsing and the mixing of atmosphere substances are avoided, the smooth development of geogas measuring work is guaranteed and the working quality is also improved; a rotary rod can be used for controlling a movable door and also can be used as a handle so that the drilling rod is easy to pull out; and furthermore, by virtue of the integrated sampling device, a sampling process is simplified, sampling time is shortened and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of earth gas measurement, in particular to an earth gas sampler integrated with drilling and air extraction. Background technique [0002] Geogas surveying method is a kind of ore prospecting method used in geochemical exploration to reveal the ore-bearing information in deeper parts by capturing and measuring trace metals and non-metallic elements in the underground updraft. The main mechanism is that when the updraft in the earth's crust migrates vertically through ore-bearing geological bodies, it will bring the ultra-fine-grained active state (submicron to nanometer) of ore-forming elements or associated elements to the surface, and part of them will remain in the gas. Among them, the other part will be transformed into various active states and exist in the loose medium on the surface. The purpose of geogas measurement is to capture and measure the part of the surface soil gas that can reflect the infor...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a drilling and air extraction device in the process of earth gas sampling, so as to solve the problems of existing devices such as hole collapse, air mixing, and difficult operation.

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