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Floating and sinking experiment instrument for teaching

A technology of experimental instruments and floating sinks, which is applied in the field of teaching instruments and floating and sinking experimental instruments. It can solve the problems of test bottle control, affect the accuracy of experiments, and fail to achieve teaching effects, etc., and achieve the effect of improving intuitive experience and ensuring reliability.

Inactive Publication Date: 2015-09-30
NANJING XINHUI SCI & TEACHING INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to accurately control the air pressure in the test bottle during the experiment with the existing floating and sinking experiment instrument, which affects the accuracy of the experiment and cannot achieve the expected teaching effect

Method used

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  • Floating and sinking experiment instrument for teaching

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Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0011] Such as figure 1 As shown, the present invention is used for the floating and sinking experiment instrument of teaching, comprises glass bottle 1, miniature air pump 2, barometer 3, pressure relief valve 5 and floating sinker. Water is filled in the glass bottle 1, and the float and sink are placed in the glass bottle 1, and the bottleneck of the glass bottle 1 is sealed with a rubber stopper 9. The micro air pump 2 is communicated with the glass bottle 1 through the air pipe 4, and the front end of the air pipe 4 is connected with the metal pipe 10, and the metal pipe 10 is inserted into the glass bottle 1 through the rubber stopper 9. Connect the barometer 3 on the air pipe 4 between the miniature air pump 2 and the vial 12 . The pressure relief valve 5 communicates with the glass bottle 1 through the air pipe 4 , the front end of the air pipe 4 is...

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Abstract

The invention discloses a floating and sinking experiment instrument for teaching, and belongs to the field of experiment equipment. The floating and sinking experiment instrument comprises a sealable transparent container, a floater and sinker, an air supply device, an air pressure gauge and a pressure release valve, wherein the floater and sinker is placed in the transparent container, the air supply device and the pressure release valve are respectively communicated with the transparent container through air pipes, the air pipes enter the transparent container, and the air pressure gauge is arranged between the air supply device and the transparent container. The air supply device, the pressure release valve and the air pressure gauge are matched, air pressure in a glass bottle is accurately controlled in the experiment process, the floater and sinker is stably suspended below a water surface, the visual feeling of students is improved, and experiment reliability is ensured.

Description

technical field [0001] The invention relates to a teaching instrument, specifically a floating and sinking experimental instrument used for teaching, which belongs to the field of experimental equipment. Background technique [0002] In the middle school physics floating and sinking teaching process, it is usually necessary to use the floating and sinking experimental instrument to demonstrate the floating and sinking experiment of objects, so as to improve students' intuitive understanding and strengthen the teaching effect. It is difficult to accurately control the air pressure in the test bottle during the experiment with the existing floating and sinking experiment instrument, which affects the accuracy of the experiment and cannot achieve the expected teaching effect. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a floating and sinking tester which can precisely co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/12
CPCG09B23/12
Inventor 王良伟
Owner NANJING XINHUI SCI & TEACHING INSTR