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Air cannon teaching aid

A technology of air cannons and teaching aids, applied in the field of teaching aids, can solve the problems of unaided explanation of the relationship between fluid pressure and flow rate, examples are far from life, not intuitive enough, etc.

Pending Publication Date: 2021-03-12
罗衍杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem in the existing technology is that the examples are far away from life, not intuitive enough, and there are no teaching aids to help explain the relationship between fluid pressure and flow velocity, which can more vividly and directly demonstrate the relationship between fluid velocity and fluid pressure for students

Method used

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  • Air cannon teaching aid
  • Air cannon teaching aid

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Embodiment 1

[0021] like figure 1 , is Embodiment 1 of the present invention, specifically:

[0022] An air cannon teaching aid, comprising a storage box 1, a connecting pipe 2, an air blast device 3 and a gun barrel 4, the storage box 1 is provided with a first through hole, and the side wall of the gun barrel 4 is provided with a second through hole, connected The two ends of the tube 2 are respectively connected with the first through hole and the second through hole, the blast device 3 is connected with one end of the barrel 4, the other end of the barrel 4 is provided with a muzzle, and the connecting tube 2 is a transparent connecting tube 2 .

[0023] The principle of the present invention is to store certain peripheral items in the storage box 1, which can be table tennis balls, etc., and utilize the blower device 3 to blow air in the gun barrel 4, so that negative pressure is generated in the gun barrel 4, and the storage box The object in 1 is sucked into the gun barrel 4 throu...

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Abstract

The invention provides an air cannon teaching aid, which comprises a storage box, a connecting pipe, a blower device and a cannon barrel; the storage box is provided with a first through hole, the side wall of the cannon barrel is provided with a second through hole, two ends of the connecting pipe are respectively connected with the first through hole and the second through hole, and the blower device is communicated with one end of the cannon barrel; a gun muzzle is arranged at the other end of the gun barrel, and the connecting pipe is a transparent connecting pipe. The teaching aid has theadvantage that the relation between the air speed and the air pressure intensity can be visually demonstrated.

Description

technical field [0001] The invention belongs to the field of teaching aids, in particular to an air cannon teaching aid. Background technique [0002] The relationship between fluid pressure and flow velocity is part of the junior high school physics curriculum. This part is usually explained through the example of an airplane wing. The air flow velocity above the wing is high and the pressure is low, so that the aircraft gains upward momentum. The problem existing in the existing technology is that the examples are far away from life, not intuitive enough, and there is no teaching aid to explain the relationship between fluid pressure and flow velocity, which can more vividly and directly demonstrate the relationship between fluid velocity and fluid pressure for students. [0003] Therefore, the prior art needs to be improved. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide an air cannon teaching aid which can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/12
CPCG09B23/12
Inventor 罗衍杰刘洪德
Owner 罗衍杰