Heavy metal detector with switching function and good detection effect

Abstract

The invention relates to a heavy metal detector with switching function and good detection effect. The heavy metal detector comprises a base, a protective cover, a switching mechanism and a cleaning mechanism, the switching mechanism comprises an isolation plate, a glass plate, a housing, a conveyor belt, a conductive component, a second motor, two rotating rollers, at least two hollow cathode lamps and at least two contacts, the cleaning mechanism comprises a guide rail, a moving seat, absorbent cotton, a driving component and two supporting components, wherein the conductive component comprises a sliding rod, an elastic sheet, two first springs and two moving sleeves, in the heavy metal detector with a switching function and a good detection effect, the switching between the hollow cathode lamps can be achieved through the switching mechanism, so that the heavy metal detector can detect different elements, the working efficiency of the heavy metal detector is improved, the glass plate can be cleaned through the cleaning mechanism, the decay of the energy of the hollow cathode lamps can be weakened, and the detection effect of the heavy metal detector can be improved.

Description

technical field [0001] The invention relates to the field of food detection equipment, in particular to a heavy metal detector with switching function and good detection effect. Background technique [0002] Food, soil, and water quality are gradually polluted by industrial waste gas, waste water, and waste residue. Some people even use industrial waste water to irrigate crops directly, resulting in cadmium, copper, arsenic, chromium, mercury, nickel, iron, aluminum, zinc, Manganese, copper and other heavy metals are enriched and accumulated in large quantities, especially in the suburbs of cities; coupled with the extensive use of inorganic chemical pesticides, etc., the heavy metal content in vegetables and fish has seriously exceeded the standard, and they continue to accumulate in the human body, resulting in consumption. The phenomenon of chronic heavy metal poisoning has occurred, and there have been many heavy metal collective poisoning incidents in China, which have ...

AI Technical Summary

Problems solved by technology

[0003] As a kind of food testing equipment, heavy metal detectors are widely used in the food testing process. When using atomic absorption spectrometry to detect metal detectors in the prior art, it is difficult to perform multi-element analysis. When measuring different elements, it is necessary to Replacing different hollow cathode lamps as sharp-line light sources greatly affects the working efficiency of the heavy metal detector. Not only that, but during the detection process of the heavy metal detector, if the window of the hollow cathode lamp is contaminated with oil, fingerprints or other dirt, it will Leading to a decrease in light energy, reducing the detection effect of the heavy metal detector

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