Teaching aid for demonstrating working principles of diaphragm pump

Abstract

A teaching aid for demonstrating working principles of a diaphragm pump comprises a pedestal and an LED screen and a transparent demonstration board fixed on the pedestal vertically. The transparent demonstration board is provided with a half-sectional dynamic demonstration part, a valve block demonstration part and a diaphragm demonstration part; the dynamic demonstration part comprises a liquidinput tube, a liquid output tube, a valve block chamber and a diaphragm chamber, and the valve block chamber is communicated with the liquid input tube, the liquid output tube and the diaphragm chamber; a diaphragm is movably installed in the diaphragm chamber, and the bottom of the diaphragm is provided with a power unit; and the LED screen projects a demonstration light source to the liquid input tube, the liquid output tube, the valve block chamber, the valve block demonstration part, the diaphragm demonstration part and the diaphragm chamber in the upper portion of the diaphragm. The teaching aid can visualize operation in the diaphragm pump, and demonstrate liquid flow direction, valve block motion, diaphragm motion and power unit motion in the diaphragm pump dynamically, and is simple in structure, convenient to operation, low in cost and especially suitable for demonstrative teaching of hydraulic and pneumatic classes in colleges.

Description

technical field [0001] The invention belongs to the field of mechanical devices, and relates to a teaching aid for hydraulic and pneumatic technology, in particular to a teaching aid for demonstrating the working principle of a diaphragm pump. Background technique [0002] In terms of current teaching, my country's education blindly pursues test scores, while ignoring the cultivation of students' hands-on ability and learning interest. In the teaching process, there is a lack of teaching tools for actual demonstrations, which makes teaching mostly boring language descriptions, especially for professional comparisons. In the application of existing technologies, hydraulic and pneumatic technologies are indispensable, and there are complex and simple ones. In the classroom, these mechanisms, air circuits and hydraulics The opening and closing of the road, the transmission of pressure and the operation of the mechanical structure are difficult to form a relatively complete physic...

AI Technical Summary

Problems solved by technology

[0002] In terms of current teaching, my country's education blindly pursues test scores, while ignoring the cultivation of students' hands-on ability and learning interest. In the teaching process, there is a lack of teaching tools for actual demonstrations, which makes teaching mostly boring language descriptions, especially for professional comparisons. In the application of existing technologies, hydraulic and pneumatic technologies are indispensable, and there are complex and simple ones. In the classroom, these mechanisms, air circuits and hydraulics The opening and closing of the road, the transmission of pressure and the operation of the mechanical structure are difficult to form a relatively complete physical image in the minds of students, especially the lack of professional demonstration teaching aids based on actual objects.

Images