Volumetric flask fixture

Abstract

The invention provides a volumetric flask fixture, comprising a main base and an anti-floating support mounted on the main base; the main base includes a bottom base and a connection rod vertically fixed onto the bottom base; the anti-floating support includes a first vertical rod vertically connected to the connection rod, a transverse rod horizontally arranged and having one end connected to theupper end of the first vertical rod, a second vertical rod having the upper end connected with the other end of the transverse rod, and an anti-floating member arranged at the lower end of the secondvertical rod; the anti-floating member is provided with an opening allowing a bottleneck of the volumetric flask to pass through; the anti-floating member applies, along the edge of the opening, a downward pressure to the belly of the volumetric flask in order to prevent the volumetric flask from floating on a liquid; when the volumetric flask is immersed in the liquid to carry out ultrasonic washing, the anti-floating member can overcome floating force that the volumetric flask bears and enable the volumetric flask to be constantly immersed in the liquid, thereby avoiding floating; ultrasonic washing effect is guaranteed, and therefore, smooth progress of an experiment and accuracy of test data are guaranteed.

Description

technical field [0001] The invention relates to the technical field of chemical experiment instruments, in particular to a volumetric flask fixing device. Background technique [0002] Thin film transistor-liquid crystal display (Thin film transistor-liquid crystal display, TFT-LCD) is currently a display device that performs well in terms of brightness, contrast, power consumption, life, volume, and weight. With good production characteristics, high degree of automation and broad development space, it has gradually occupied a dominant position in the display field. [0003] The volumetric flask is a precise instrument for accurately preparing a solution with a certain concentration of a substance. It is an essential measuring instrument for every chemical laboratory and has a wide range of uses. It plays a huge role in the fields of microbiology, medicine, and TFT-LCD industry. . It can be used in the TFT-LCD industry for the inspection of raw materials, such as calcium c...

AI Technical Summary

Problems solved by technology

[0005] Because the container bottle cannot be fixed when the laboratory ultrasonic cleaning instrument is used for ultrasonic degassing or cleaning, during the ultrasonic cleaning process, the part of the volumetric bottle immersed in water will be subject to the buoyancy of the water, so it often falls and shakes or floats on the water. As a result, the ultrasonic cleaning of the solution in the container bottle is uneven or even unable to achieve the effect of ultrasonic degassing, which makes the experiment unsmooth and the test data inaccurate, which brings great troubles to the experiment.

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