Acquisition device used for outdoor air detection

Abstract

The invention discloses an acquisition device used for outdoor air detection. The acquisition device used for outdoor air detection comprises a bottom plate, side plates, a top plate, a connecting rod, a gas intake hood, a gas pump, a vertical rod, a limit pipe, a slender pipe, a push rod motor, a second annular plate, and springs; the side plates are fixedly arranged on the two sides of the bottom plate; the top of each side plate is fixedly connected with the bottom of the top plate; the connecting rod is fixedly arranged on one side of the bottom of the top plate; one end of the connectingrod far away from the top plate is fixedly provided with the gas intake hood; the middle part of the bottom of the top plate is fixedly provided with the vertical rod; one end of the vertical rod faraway from the top plate is fixedly provided with the limit pipe; one side of the top of the bottom plate close to the gas intake hood is fixedly provided with the gas pump; a gas inlet terminal of thegas pump is fixedly provided with a gas inlet pipe; one end of the gas inlet pipe far away from the gas pump is fixedly connected with the gas intake hood; a gas outlet terminal of the gas pump is fixedly provided with a gas outlet pipe. The acquisition device is used for outdoor air detection, water discharging method is adopted to collect gas, the purity of sampled air is increased, detection efficiency is increased, and the acquisition device is convenient to use.

Description

technical field [0001] The invention relates to the technical field, in particular to a collection device for outdoor air detection. Background technique [0002] Air detection refers to the detection of the composition of the air. Air detection in a narrow sense mainly focuses on indoor air detection from the perspective of application. It refers to indoor decoration materials, furniture, etc. containing harmful substances to the human body, which are released into the home and office environment to cause decoration pollution, to detect air quality. Outdoor air testing often requires taking outdoor air samples and then bringing the collected air samples back to the laboratory for testing. Generally, people often use some sampling tools in the outdoor sampling process. [0003] The existing outdoor air detection collection device patent 106053160A proposes a collection device for outdoor air detection. This patent has the characteristics of fast collection speed and simpl...

AI Technical Summary

Problems solved by technology

[0003] The existing outdoor air detection collection device patent 106053160A proposes a collection device for outdoor air detection. This patent has the characteristics of fast collection speed and simple operation. However, this patent collects air through the exhaust method, because the gas collection bottle The air inside and the air outside have the same density, which will cause the original air in the bottle to remain in the gas collecting bottle, which will lead to inaccurate detection data. Therefore, we propose a collection device for outdoor air detection

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