Teaching display board of three-position four-way reversing valve

Abstract

The invention discloses a teaching display board of a three-position four-way reversing valve. The teaching display board comprises a display board body and a valve core, wherein a section structure view of the three-position four-way valve is drafted on the display board body, the display board body is fixedly provided with two collars, the two ends of the valve core are respectively arranged in the collars, the left end of the valve core is fixedly provided with a block, a left-position stroke switch and a right-position stroke switch are fixedly arranged above the block, the valve core is disposed at a central position of the three-position four-way valve, and the block is disposed between the two stroke switches; a P port, a T port, an A port and a B port of the section structure view of the three-position four-way valve are respectively provided with a lamp strip P, a lamp strip T, a lamp strip A and a lamp strip B, the lamp strips are provided with a plurality of bulbs, and the bulbs on each lamp strip are divided into two groups, i.e., one group of red-light bulbs and one group of blue-light bulbs. According to the invention, the connection relations in a valve body can be visually displayed, learning interest of students and classroom fun are aroused, and the teaching effect is improved.

Description

technical field [0001] The invention relates to the field of teaching equipment, in particular to a teaching display board for a three-position four-way reversing valve. Background technique [0002] The hydraulic and pneumatic technology major, the academic nature is a full-time junior college of general higher education, and the subject category is machinery and manufacturing. Cultivate advanced technical application talents who are engaged in technical management work such as installation, commissioning and maintenance of mechanical, hydraulic and pneumatic equipment, and have design capabilities for general mechanical, hydraulic and pneumatic systems. In the actual teaching plan of the hydraulic system, the power components, actuators, control components, auxiliary components (accessories) and hydraulic oil included in the hydraulic system are usually explained in large chapters, where the hydraulic control components include various hydraulic valves , the role of contr...

AI Technical Summary

Problems solved by technology

In the teaching of the three-position four-way valve, teachers can only explain the structure diagram in the textbook, the content is relatively boring, it is difficult to arouse students' interest, and the structural characteristics and working of the three-position four-way valve cannot be displayed from a dynamic perspective. The principle, poor teaching effect, burying hidden dangers for subsequent more in-depth learning

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