Test tube rack for a chemical laboratory

Abstract

The invention relates to the technical field of chemical experiment equipment, and discloses a test tube rack for a chemical laboratory. The test tube rack comprises a base, wherein vertical rods arefixedly installed at four corners of the top of the base, sliding blocks are in movable sleeved connection with the bottom ends of inner cavities of the vertical rods, adjusting rods are fixedly installed at the tops of the sliding blocks, the top ends of the adjusting rods penetrate the vertical rods and extend to the outside of the top ends of the vertical rods, and rotating devices are fixedlyinstalled at the top ends of side surfaces of the vertical rods. According to the test tube rack for the chemical laboratory, the adjusting rods are driven by rotating gears to move vertically by/under cooperation of the rotating gears and the adjusting rods, so that height of the adjusting rods from the base is changed, and the test tube rack can be used for placing test tubes with different heights; rotating blocks are rotated, the adjusting rods are fixed by pressing blocks, the adjusting rods cannot descend due to own gravity and weight of test tubes, the experiment can be smoothly conducted, and practicability of the test tube rack is improved.

Description

technical field [0001] The invention relates to the technical field of chemical experiment equipment, in particular to a test tube rack for a chemical laboratory. Background technique [0002] A kind of chemical experiment instrument, wooden shelf or bamboo shelf, the test tube rack is used to place (sometimes the test tube can also be placed on the test tube rack to observe the phenomenon of a certain experiment), and the chemical laboratory used for drying the test tube The most basic experimental equipment. [0003] At present, the test tube rack commonly used in the laboratory is a simple wooden shelf for storing test tubes. Because the types of laboratory test tubes are different, the length of the test tubes is also different. However, the height of the existing test tube racks is fixed and cannot be adjusted. It is suitable for test tubes of different heights. At the same time, the existing test tube rack only has a fixed groove on the base, and a wooden strip is ins...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a test tube rack for a chemical laboratory, which has the advantages of being suitable for test tubes of different heights, high stability and preventing wrong taking, and solves the problem that the test tube rack commonly used in laboratories is a simple wooden shelf for To store test tubes, the length of the test tubes is different due to the different types of test tubes in the laboratory. There is a fixed groove on the base, and a wooden strip is installed on the top to fix the test tube. The stability is not high, and the liquid in the test tube is easy to spill, which will affect the accuracy of the experimental data.

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