Gas pressure demonstration teaching instrument
A gas pressure and instrument technology, applied in the field of teaching instruments, can solve the problem of not being able to prove both qualitatively and quantitatively at the same time
Inactive Publication Date: 2017-10-10
JIANGSU ZICHEN EDUCATION EQUIP
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Problems solved by technology
These experiments can explain the existence of atmospheric pressure, but they cannot prove both qualitatively and quantitatively that the gas has pressure in all directions
Method used
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[0011] The present invention will be further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.
[0012] Such as figure 1 As shown, a gas pressure demonstration teaching instrument: includes a syringe 1, a pressure vessel 2, a U-shaped pipe 3, a main valve 4, a support 5 and a connecting pipe 6, and the bottom end of the U-shaped pipe 3 is fixed on the support 5 The top end is connected to the pressure vessel 2 through the connecting pipe 6, the syringe 1 is connected to the pressure vessel 2 through the connecting pipe 6, the main valve 4 is arranged on the pressure vessel 2; the pressure vessel 2 is made of plexiglass, There are several holes around, and each hole is connected with a thin glass tube; the support 5 is a groove-shaped iron seat, and several aluminum-plastic plates are fixed on the iron seat, which are used to place the U-shaped tube 3 and ar...
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The invention relates to a gas pressure demonstration teaching instrument, which comprises a syringe, a pressure container, a U-shaped tube, a master valve, a support and a connecting tube, wherein the bottom end of the U-shaped tube is fixed on the support, the top end of the U-shaped tube is connected with the pressure container through the connecting tube, the syringe is connected with the pressure container through the connecting tube, and the master valve is arranged on the pressure container; the pressure container is made of organic glass, a plurality of holes are formed in the periphery of the pressure container, and each hole is connected with a fine glass tube; the support is a grooved iron base, a plurality of aluminum-plastic plates are fixed on the iron base and used for storing the U-shaped tubes and a bracket for supporting the pressure container is arranged on the iron base; and the two ends of the connecting tube are fixed through plastic springs so as to prevent the deadlock of the connecting tube. The gas pressure demonstration teaching instrument has the advantages of providing a gas pressure demonstration teaching instrument which is convenient to use, simple to operate, and capable of both qualitatively and quantitatively demonstrating the pressure of gas towards all directions.
Description
technical field [0001] The invention belongs to the field of teaching instruments, in particular to a gas pressure demonstration teaching instrument. Background technique [0002] Gases and liquids have a common property: there is pressure in all directions inside the liquid, and at the same depth, the pressures in all directions (up and down, left and right, front and back) are equal. There is pressure in all directions inside a liquid because the liquid is able to flow. To prove this physical phenomenon, there are special verification instruments—liquid pressure demonstrator and Pascal sphere. Air is also flowing, and there is also pressure in all directions, but at present we can only use plastic suction cup experiments, straw drinking experiments, and hot barrel sealing cold experiments to illustrate. These experiments can explain the existence of atmospheric pressure, but they cannot prove both qualitatively and quantitatively that the gas has pressure in all directio...
Claims
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IPC IPC(8): G09B23/12
CPCG09B23/12
Inventor 庄菀露
Owner JIANGSU ZICHEN EDUCATION EQUIP