Test tube stand

Abstract

The invention discloses a test tube stand. The test tube stand comprises an insertion board, two brackets, a base and a clamping board, wherein the clamping board is made from an elastic material, thetwo brackets are respectively mounted at two ends of the base, the heights of the brackets are larger than the heights of test tubes, the insertion board is mounted at the upper ends of the brackets,a plurality of through holes penetrated by the test tubes are formed in the insertion board, and the clamping board is clamped to the brackets and is located between the insertion board and the base;arc-shaped clamping sites with the same number of the through holes are arranged in the clamping plate and are in one-to-one correspondence with the corresponding through holes; and the arc angles ofthe clamping sites are a, a is more than 180 degrees and less than 270 degrees, and the diameters of the clamping sites are smaller than the outer diameters of to-be-placed test tubes. According to the test tube stand, the test tubes inserted into the through holes are fixed through the clamping plate, so that the shaking of the test tubes is avoided, the breakage of the test tubes caused by thecollision is avoided, the outdoor operation is facilitated, and meanwhile, the draining of the test tubes is facilitated.

Description

technical field [0001] The invention relates to experimental equipment, in particular to a test tube rack. Background technique [0002] Test tube racks are commonly used equipment in current experiments. Present test tube rack mainly is made of base, support and inserting plate, and has some through holes on inserting plate to use for test tube. The principle of use is: when using the test tube, put the bottom of the test tube with liquid down into the test tube socket, the contact between the test tube and the socket is loose, and it is convenient to take and place; when the test tube is not in use, put the empty test tube with the mouth facing down Just put it into the test tube jack, which can not only drain the water, but also prevent dust from falling into the test tube. But the existing test tube rack has the following disadvantages: one, the test tubes are relatively loose in the test tube rack, which is unfavorable for outdoor work, easy to shake, and has a high d...

AI Technical Summary

Problems solved by technology

However, the existing test tube racks have the following disadvantages: 1. The test tubes are relatively loose in the test tube racks, which is not conducive to outdoor work, easy to shake, and has a high breakage rate

2. When the test tube is not in use and is drained, the test tube mouth is in contact with the bottom surface of the test tube rack, which will cause contact pollution

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