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化学实验有诸多反应需要加热,其加热因素包括实验需要、为了实验装置的美观、便于学生观察演示实验等。而上述因素对酒精灯的高度均有不同要求,但实验室仅用1块小木块垫高酒精灯,使其高度无法随机调节。为了实现酒精灯高度的任意调节,笔者制作了1款简单、适用、美观的升降式酒精灯支架,取得了较好效果。一、用途酒精灯的支架。二、特点可升降,具有轻巧、灵活、安全性好等特点。三、原理结构图和实物图其原理结构图和实物图如图1、图2所示。
There are many chemical experiments need to heat the reaction, the heating factors include the experimental needs, in order to test the beauty of the device for students to observe demonstration experiments. The above-mentioned factors have different requirements on the height of the alcohol lamp, but the laboratory only needs one small wooden block to replace the alcohol lamp so that the height can not be adjusted randomly. In order to achieve any degree of alcohol lamp height adjustment, I made a simple, suitable, beautiful lifting alcohol lamp bracket, and achieved good results. First, the use of alcohol lamp bracket. Second, the characteristics can be raised and lowered, with light, flexible, good safety and so on. Third, the principle of structure and physical map The principle of the structure and physical map shown in Figure 1, Figure 2.