Portable adjustable atmospheric particulate detecting device

Abstract

The invention discloses a portable adjustable atmospheric particulate detecting device. The device can not only stabilize the clamping protection of the detecting device, but also can cooperate with the rotating operation of a pin shaft to comprehensively change the orientation of the detecting device to meet detecting requirements of a wider range. By setting different numbers of connecting blocks on both ends, overall eccentric rotation of a connecting column and the connecting blocks is realized. Through eccentric rotation, a shroud automatically swings around the pin shaft within a certainrange. A gravity center adjusting block is arranged on the inner wall of the conical structure of the shroud. The gravity center adjusting block is arranged to be adjustable along the axial directionof the shroud. According to the detecting device, when the gravity center adjusting block is located at the center of the adjusting amplitude thereof and an exhaust fan are stopped, the center of gravity of the detecting device is located in the vertical plane where the pin shaft is located; and the balance angle of the shroud and a detecting cabin can be adjusted to facilitate automatic angle swing under eccentric oscillation during eccentric rotation in subsequent detection.

Description

Technical field [0001] The invention relates to a gas particle detection device, in particular to a portable and adjustable atmospheric particle detection device. Background technique [0002] At present, suspended particulate matter in the atmosphere has become a major focus of people's attention. Inhalable in the atmosphere can cause respiratory diseases in the human body, and then cause lung function damage and other hazards. [0003] Existing atmospheric particulate matter detection devices have relatively fixed detection angles for particulate matter in the air, and it is not convenient to adjust the collection and detection angles. In this way, when collecting particulate matter in the atmosphere at different locations for subsequent detection, it is In areas with poor circulation, because the angle is always at a fixed position when the angle is extracted and tested, it often leads to uneven air extraction, which is not uniform to the tested sample, and cannot respond to the...

AI Technical Summary

Problems solved by technology

[0003] The existing atmospheric particle detection devices have a relatively fixed collection and detection angle for particles in the air, and it is not convenient to adjust the collection and detection angle. In this way, when collecting particles in the atmosphere at different locations for subsequent detection, for some gases In areas with poor circulation, because the angle is always in a fixed position during extraction and detection, it often leads to uneven extraction of air, which does not have uniformity for the tested samples, and cannot respond to the situation in the entire area, which affects the detection accuracy and quality

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