Quantitative pipettor with filtering function

Abstract

The invention discloses a quantitative pipettor with a filtering function, and belongs to the technical field of experimental equipment; the quantitative pipettor comprises a first sleeve; the left side surface of the first sleeve is in lap joint with the right side surface of a second sleeve, and the right side surface of the first sleeve is in lap joint with the left side surface of a volume adjusting knob. According to the quantitative pipettor with the filtering function, by arranging the volume adjusting knob, a threaded cylinder, an adjusting assembly, a movable plate and a digital displayer, a worker can adjust the volume of the pipettor according to actual conditions, the worker directly rotates the volume adjusting knob, and the volume adjusting knob drives the threaded cylinder to rotate, so that the adjusting assembly moves left and right in the outer wall of the threaded cylinder; and the volume of the pipettor is adjusted by limiting the movable plate through the adjusting assembly, and when the adjusting assembly moves left and right, the digital displayer displays the corresponding volume, so that a worker can observe the volume conveniently, the adjusting difficulty of the worker is reduced, and the applicability of the pipettor is improved.

Description

technical field [0001] The invention belongs to the technical field of experimental equipment, in particular to a quantitative pipette with a filtering function. Background technique [0002] In production or experiments, people often need to transfer the liquid in the container to another container. For this, the most commonly used method is to use an electric pipette or pipette, the principle of which is to use negative pressure suction. Liquid, due to frequent operation will produce a large amount of aerosols, such aerosol pollution will cause damage to the human body and adversely affect the test results, such as: bacterial liquid, nucleic acid extraction liquid, etc. [0003] Although a variety of aspirators have been developed at present, most of the common aspirators on the market can only transfer liquid materials, and cannot transfer liquids containing aerosols, volatile liquids, and biohazardous materials in a harmless manner. Not only is the safety low, but in se...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a quantitative pipette with filtering function, which solves the problem that most of the common pipettes on the market can only transfer liquid materials, and cannot transfer liquid materials containing aerosols and easily Harmless pipetting of volatile liquids, biohazardous materials, etc., not only has low safety, but also affects experimental results in serious cases, or causes laboratory biological contamination, and cannot adjust the volume of the pipette, which has low applicability question

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