Agitating device for teaching test tube

Abstract

The invention relates to the technical field of teaching test tubes, and particularly relates to an agitating device for a teaching test tube. The agitating device comprises a plunger piston, whereinthe plunger piston is provided with a through hole; an agitating rod is arranged in the through hole; one end, penetrating through the through hole, of the agitating rod is provided with an agitatingpart; the agitating part is detachably connected with the agitating rod; the other end of the agitating rod is provided with a handheld part; the handheld part is fixedly connected with the agitatingrod; the agitating part has a helical structure. The device is simple in structure, is easy to popularize, has quite good practicability, and meanwhile, is convenient to operate; the use cost is decreased, and the teaching efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of test tubes for teaching, in particular to a test tube stirring device for teaching. Background technique [0002] At present, in the teaching process of chemistry courses, a lot of chemical experiments need to be done to enhance the students' perceptual knowledge. When conducting chemical experiments, the most commonly used is the test tube. For some chemical experiments with faster reactions, it is often only necessary to lighten the test tube. Vibrating the test tube is enough, but for some experiments with slow response, if the test tube is not vibrated violently, the reaction time will be longer and the classroom efficiency will be reduced. The existing ones all manually shake the test tubes, which will cause incomplete reaction on the one hand and ache in the hands on the other hand. Contents of the invention [0003] The object of the present invention is to provide a teaching test tube stirring ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the teaching process of chemistry courses, a lot of chemical experiments need to be done to enhance the students' perceptual knowledge. When conducting chemical experiments, the most commonly used is the test tube. For some chemical experiments with faster reactions, it is often only necessary to lighten the test tube. Vibrating the test tube is enough, but for some experiments with slow response, if the test tube is not vibrated violently, the reaction time will be longer and the classroom efficiency will be reduced

The existing method is to manually shake the test tube, on the one hand, the reaction will not be complete, and on the other hand, it will cause sore hands

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