Display device for biology teaching experiment

Abstract

The invention discloses a display device for a biology teaching experiment. The display device comprises a shell, wherein U-shaped sliding rails are fixedly connected to inner walls opposite to the shell; a placement table is arranged on side walls of the U-shaped sliding rails; a plurality of pulleys are rotationally connected onto side walls of the placement table; the pulleys are positioned inthe U-shaped sliding rails; a plurality of round holes are formed in the upper end of the device table; test tubes are arranged in the round holes; a device cavity is formed in the device table; an L-shaped pull rod is arranged in the device cavity; a guide rod is fixedly connected to the inner wall of the device cavity and penetrates through the side wall of the L-shaped rod; the L-shaped rod isfixedly connected with the inner wall of the device cavity by virtue of a first spring; the L-shaped rod penetrates through the device cavity and extends into the round holes; and a popping-up plate is fixedly connected to one end, which is positioned in the round hole, of the L-shaped rod. The display device disclosed by the invention is reasonable in structure, and students can conveniently perform paired observation to display influences of different temperatures on enzymatic activities.

Description

Technical field [0001] The invention relates to the technical field of biological experiments, in particular to a display device for biological teaching experiments. Background technique [0002] There are many kinds of experiments involved in high school biology, including the study of the role of enzymes, and the effects of enzymes on activity at different temperatures and pH values. In reality, teachers often use enzymes directly in experiments that show the effects of enzymes to students. It cannot be compared well with the object to be reacted in a test tube for display, nor can it show the effect on enzyme activity at different temperatures. Summary of the invention [0003] The purpose of the present invention is to solve the shortcomings in the prior art, and proposes a display device for biological teaching experiments, which facilitates comparative observation and display of the effect of different temperatures on enzyme activity. [0004] In order to achieve the above ob...

AI Technical Summary

Problems solved by technology

[0002] There are many kinds of experiments involved in high school biology, including the study of the role of enzymes and the effect of enzymes on activity at different temperatures and pH values. In reality, teachers often use enzymes directly in experiments to show students the role of enzymes. Displayed in a test tube with the object to be reacted, it cannot be compared well, nor can it show the effect on enzyme activity at different temperatures

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