An intelligent personal dust sampler with anti-false touch and protection functions

Abstract

The invention relates to an intelligent single powder sampler having mis-touch prevention and protection functions. The intelligent single powder sampler comprises a main body, the main body is provided with an anti-touching mechanism, and the anti-touching mechanism comprises a fixed plate, an isolation plate, a transverse plate, a plurality of telescopic units and a plurality of fixing units, a telescopic unit spring, a sliding rod, a fixing ring and a liming block. Each fixing unit comprises an insertion rod and an insertion ring. The top of the main body is provided with a second notch, a protection mechanism is arranged in the second notch and comprises a lifting unit, a lifting plate, a driving unit, a cover plate and a connecting rod. According to the intelligent single powder sampler having the mis-touch prevention and protection functions, a control component in the first notch is isolated through the isolation plate, and the problem that a switch, a knob and a control key are touched in the test process, so that correction measurement by an instrument is affected is solved; besides, the cover plate is driven to rotate through the protection mechanism, a rubber pad covers an air inlet nozzle, external dust and winged insects are prevented from entering the main body and damaging devices, and thus a protection function is achieved.

Description

technical field [0001] The invention relates to the field of dust samplers, in particular to an intelligent individual dust sampler with false touch prevention and protection functions. Background technique [0002] The individual dust sampler is an instrument for measuring the average concentration of dust in the air in a public shift. The instrument is composed of an air pump, a digital timer, a constant flow circuit, an undervoltage protection circuit, and a safe power supply. The instrument is equipped with a set of micro-dust pre-collectors, which can separate the respirable dust that is harmful to the human body and the coarse powder dust. The separation efficiency meets the internationally recognized "BMRC" curve standard. [0003] Existing individual dust samplers are usually leaned against the body of the tester when in use, but since the operating buttons, adjustment knobs and other components on the instrument are exposed outside the instrument, during the actual ...

AI Technical Summary

Problems solved by technology

[0003] Existing individual dust samplers are usually leaned against the body of the tester when in use, but since the operating buttons, adjustment knobs and other components on the instrument are exposed outside the instrument, during the actual test process, due to the close proximity of the instrument to the tester Usually, the body of the tester will mistakenly touch the switches and various buttons on the instrument, resulting in misoperation of the equipment, resulting in test failure. Not only that, when the equipment is idle, because the air intake nozzle on the instrument is exposed, making Some dust and flying insects in the air enter the instrument through the air intake nozzle, which will not only affect the measurement accuracy, but also cause ventilation blockage and damage the equipment in serious cases

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