Portable multifunctional demonstrator of electric shock and explosions

A multifunctional and portable technology, applied in the field of physical teaching aids, can solve the problems of single function and inconvenient operation, and achieve the effect of improving learning effect, simple device and vivid image

Inactive Publication Date: 2019-07-19
张柱祖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of single function and inconvenient operation in the prior art, and propose a portable multifunctional electric shock explosion demonstration instrument

Method used

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  • Portable multifunctional demonstrator of electric shock and explosions
  • Portable multifunctional demonstrator of electric shock and explosions
  • Portable multifunctional demonstrator of electric shock and explosions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: When performing an electric shock demonstration, open the storage box 18, take out the bottom plate 1, first close the low-voltage switch, the low-voltage booster module 3 boosts the voltage to 50V, and contacts the first touch electrode 5a and the second touch electrode 5b at the same time. You can feel the electric shock phenomenon, then, two students touch the first touch electrode 5a and the second touch electrode 5b respectively, and the other two hands touch each other, you can feel the indirect single-line electric shock, turn off the low-voltage switch, first turn the rotary switch 10, the rotary switch 10 is on Slide the inside of the sliding groove 9 to make the rotary switch 10 contact with the arc electrode 7, close the high-voltage switch and reset switch 16, the oscillator works, an oscillating current is generated in the circuit, and a high voltage of about 50,000 volts is output through the high-voltage step-up transformer, and the rotary han...

Embodiment 2

[0042] Embodiment 2: When performing a gas explosion demonstration, open the placement box 18, take out the bottom plate 1, and fix the gas cylinder 8 on the gas detonation table 11, the first gas explosion detonation discharge needle 12a and the second gas explosion detonation discharge needle 12b pass through the gas detonation The center of the table 11 passes through the bottom of the gas cylinder, the height is not less than 8 cm, so that the electric spark can be located at the center of the gas cylinder 8, and the rotary switch 10 is rotated to make the rotary switch 10 contact with the second gas explosion initiation discharge needle 12b, and the gas A small amount of combustible gas (alcohol, gasoline, ether, sherwood oil etc.) is passed in bottle 8 inside, and cover bottle cap. Close the high-voltage switch and reset switch 16, and boost the voltage to about 50,000 volts or more through the high-voltage booster module 3 to ensure that continuous electric sparks are ge...

Embodiment 3

[0043] Embodiment 3: When performing a dust explosion demonstration, open the placement box 18, take out the bottom plate 1, rotate the rotary switch 10, make the rotary switch 10 contact with the first dust explosion detonation discharge needle 17a, take an appropriate amount of dry flour, aluminum powder is equal to the In the funnel 133, fasten the cover body 132 on the upper end of the bottle body 131, close the high-voltage switch, pump air with the pump 15, and blow the dust in the bottle body 131 at the air outlet of the rubber tube 14 to raise the dust. Start, press the reset switch 16 at the same time, the first dust explosion detonation discharge needle 17a and the second dust explosion detonation discharge needle 17b generate continuous electric sparks between the two poles, and the phenomenon of dust explosion inside the bottle body 131 can be observed.

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Abstract

The invention relates to the field of physiochemical teaching aids, in particular to a portable multifunctional demonstrator of electric shock and explosions, and overcomes the defect that the prior art has single function and operational inconvenience. The tests, such as electric shock sensing, high voltage discharge, gas explosion and dust explosion, are integrated into a teaching aid; a circuitmodule battery pack outputs two currents; one current is boosted into a voltage of about 50 V via a low-voltage switch and a low voltage boost module, and two touch electrodes are connected; the other current is boosted by a high voltage boost module; one wire is connected to a rotary switch; the rotary switch rotates in an arc slide groove of a bottom plate; a moving contact of the rotary switchcan rotate to alternately connect with another electrode for high voltage discharge, gas explosion and dust explosion. The experimental tools are integrated to one toolbox, allowing teachers to carryconveniently; the portable multifunctional demonstrator of electric shock and explosions is simple, easy to manufacture, practical, can provide vivid demonstrations, and helps motivate students to improve learning efficiency.

Description

technical field [0001] The invention relates to the technical field of physics teaching aids, in particular to a portable multifunctional electric shock explosion demonstration instrument. Background technique [0002] In China, the safety accidents caused by improper use of electricity account for about 70% of the total every year. It is related to the safety of children and it is precisely the weakest link in the prevention of safety accidents. There are also various gas and dust explosion accidents. The painful lessons of success have made us think deeply about how to spread the knowledge of safe electricity use to young children in a practical and effective way, raise awareness of safe use of electricity, and prevent various explosion accidents, which are directly related to whether young students can grow up safely and healthily. It is related to the happiness, tranquility and social stability of thousands of families. [0003] At present, there are some electric shock...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/18
CPCG09B23/18
Inventor 张柱祖张婷宇
Owner 张柱祖
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