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Magnesium strip combustion demonstration device for teaching

A demonstration device and a technology of magnesium strips, which are applied in the direction of educational appliances, teaching models, instruments, etc., can solve the problems that the demonstration is easily disturbed by the external environment, the clamping and effect are poor, and the demonstration process is prone to danger, etc.

Active Publication Date: 2018-09-28
杨松平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the traditional demonstration device, such as the poor clamping and effect, the demonstration process is prone to danger, and the demonstration is easily disturbed by the external environment, the purpose of the present invention is to provide a stable demonstration environment for the magnesium bar demonstration process, safe and reliable , A teaching magnesium bar combustion demonstration device that can fully display the demonstration process

Method used

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  • Magnesium strip combustion demonstration device for teaching
  • Magnesium strip combustion demonstration device for teaching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of demonstration device of burning magnesium bars for teaching, such as Figure 1-2 As shown, it includes a demonstration box 1, a telescopic mechanism 2 and a clamping mechanism 3. The inner wall of the demonstration box 1 is equipped with a telescopic mechanism 2, and the moving parts of the telescopic mechanism 2 are equipped with a clamping mechanism 3. The left bottom plate of the demonstration box 1 A first through hole 4 is opened.

Embodiment 2

[0025] A kind of demonstration device of burning magnesium bars for teaching, such as Figure 1-2 As shown, it includes a demonstration box 1, a telescopic mechanism 2 and a clamping mechanism 3. The inner wall of the demonstration box 1 is equipped with a telescopic mechanism 2, and the moving parts of the telescopic mechanism 2 are equipped with a clamping mechanism 3. The left bottom plate of the demonstration box 1 A first through hole 4 is opened.

[0026] Telescoping mechanism 2 includes sleeve 21, sleeve rod 22, spring seat 23, back-moving spring 24, fixed rod 25 and sponge block 26, and the inner left side wall middle part upper position of demonstration case 1 is provided with sleeve 21, sleeve 21 There is a sleeve rod 22 inside, and a spring seat 23 is provided at the middle right of the sleeve rod 22. A return spring 24 is connected between the spring seat 23 and the sleeve 21. The sleeve rod 22 passes through the return spring 24, and the right side of the sleeve 2...

Embodiment 3

[0028] A kind of demonstration device of burning magnesium bars for teaching, such as Figure 1-2 As shown, it includes a demonstration box 1, a telescopic mechanism 2 and a clamping mechanism 3. The inner wall of the demonstration box 1 is equipped with a telescopic mechanism 2, and the moving parts of the telescopic mechanism 2 are equipped with a clamping mechanism 3. The left bottom plate of the demonstration box 1 A first through hole 4 is opened.

[0029] Telescoping mechanism 2 includes sleeve 21, sleeve rod 22, spring seat 23, back-moving spring 24, fixed rod 25 and sponge block 26, and the inner left side wall middle part upper position of demonstration case 1 is provided with sleeve 21, sleeve 21 There is a sleeve rod 22 inside, and a spring seat 23 is provided at the middle right of the sleeve rod 22. A return spring 24 is connected between the spring seat 23 and the sleeve 21. The sleeve rod 22 passes through the return spring 24, and the right side of the sleeve 2...

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Abstract

The invention relates to a teaching demonstration device, in particular to a magnesium strip combustion demonstration device for teaching. The invention aims at providing the magnesium strip combustion demonstration device for teaching, which can provide a stable demonstration environment for the demonstration process of a magnesium strip, is safe and reliable, and can realize sufficient demonstration during the demonstration process. The technical scheme is as follows: the magnesium strip combustion demonstration device for teaching comprises a demonstration box, a telescopic mechanism and aclamping mechanism, wherein the telescopic mechanism is mounted on the inner wall of the demonstration box, the clamping mechanism is mounted on a movable part of the telescopic mechanism, and a firstthrough hole is formed in a bottom plate on the left side of the demonstration box. For the magnesium strip combustion demonstration device, through the matching between the telescopic mechanism andthe clamping mechanism, the magnesium strip is moved into the demonstration box to be demonstrated, meanwhile, by utilizing the optimization of a collecting mechanism, the effects that the stable demonstration environment is provided for the demonstration process of the magnesium strip, the operation is safe and reliable, and sufficient demonstration is realized during the demonstration process, are achieved.

Description

technical field [0001] The invention relates to a teaching demonstration device, in particular to a teaching demonstration device for burning magnesium bars. Background technique [0002] Teaching is a human-specific talent cultivation activity composed of teachers' teaching and students' learning. Through such activities, teachers guide students to learn and master cultural and scientific knowledge and skills purposefully, in a planned and organized manner, and promote the improvement of students' quality, so that they can become the people needed by society. [0003] Due to the particularity of the chemistry subject, teachers usually need to perform some scientific experiment demonstrations to improve the teaching effect. Just as in the magnesium bar burning experiment, the traditional demonstration device has poor clamping and effect, and the demonstration process is prone to danger, and the demonstration is easy to be affected. The external environment interferes, so it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/24
CPCG09B23/24
Inventor 傅志伟叶怡君林慧依
Owner 杨松平