Naphthenic acid test tube holder

Abstract

The invention discloses a naphthenic acid test tube holder. The naphthenic acid test tube holder comprises a base, wherein a support with a hollow inner part is fixedly mounted on the base; clamping slots are uniformly formed in the hollow part of the support; a shaft rod is inserted into a gap between the clamping slots; a limiting rod sleeves the tail end of the shaft rod; the limiting rod is clamped between the clamping slots; a knob is arranged at the tail end of the limiting rod; limiting blocks are mounted on the side wall of the limiting rod; the space between the clamping slots is greater than the diameter of the shaft rod and smaller than the diameter of the limiting rod. Through adoption of different diameters of the shaft rod and the limiting rod, limiting is achieved during height adjustment; through arrangement of the limiting blocks on the side wall of the limiting rod, the shaft rod can be fixed during rotation; through rotational connection of the rotating clamp and the shaft rod, the tilt angle can be adjusted at will during using; through a test tube slot clamped by a clamping arm of the rotating clamp, the test tube slot can stably reinforce a test tube so as to prevent the test tube from shaking.

Description

technical field [0001] The invention relates to the technical field of test tube supports, in particular to a naphthenic acid test tube support. Background technique [0002] The test tube holder is the most basic experimental instrument in the chemical laboratory used to place and dry the test tubes. There are a corresponding number of small wooden columns and small holes in the ordinary test tube holder. If there are small holes, the test tube can be placed vertically for use or In order to continue to observe the progress of the reaction, if there is a column, the cleaned test tube can be turned upside down for drying. [0003] The traditional test tube holder has a single structure and is very inconvenient to use. Compared with the test tubes stored in naphthenic acid, it is inevitable to tilt the test tubes for chemical operations when starting experiments. At the same time, during the chemical experiments, due to personal Different customary heights require the height...

AI Technical Summary

Problems solved by technology

[0003] The traditional test tube holder has a single structure and is very inconvenient to use. Compared with the test tubes stored in naphthenic acid, it is inevitable to tilt the test tubes for chemical operations when starting experiments. At the same time, during the chemical experiments, due to personal The height of the test tube holder needs to be adjusted according to the different custom height, and the test tube holder must be stable during the adjustment process.

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