Multifunctional linkage type box-type teaching aid capable of being unfolded

Abstract

The invention relates to the field of teaching aids, in particular to a multifunctional linkage type box-type teaching aid capable of being unfolded. The multifunctional linkage type box-type teaching aid capable of being unfolded solves the problems that an existing teaching aid can only conduct simple mechanical movement, has a single structure and a single function and is large in size. The multifunctional linkage type box-type teaching aid capable of being unfolded comprises a connecting rod mechanism face, a cam mechanism face, a gear train mechanism face, a sheave mechanism face, four power switching devices, a handle, a top cover, a bottom plate, a power transmission shaft and a middle idler gear, wherein the connecting rod mechanism face, the cam mechanism face, the gear train mechanism face and the sheave mechanism face constitute four faces of a box body. Four typical mechanisms can be demonstrated through the four faces, combination is conducted again based on a traditional mechanism, so that at least two functions can be demonstrated through each mechanism. Power transmitting mechanisms in the four faces are identical in structure, and independent power transmission is adopted by each face. When single face demonstrates functions, power is provided by manually rotating the handle, and operation is simple and convenient. Every two adjacent faces are connected through a combination hinge. Each face can be turned by 90 degrees in the transverse direction and can also be turned by 180 degrees in the longitudinal direction, and therefore the process that the mechanisms are detached and then the planes where the mechanisms are located are combined is omitted. By the adoption of the multifunctional linkage type box-type teaching aid capable of being unfolded, resources and space can be saved, and combination linkage can be achieved.

Description

technical field [0001] The invention relates to the field of teaching aids. Specifically, it relates to a multifunctional box-type teaching aid that can be expanded and linked. In teaching, four typical mechanisms in the course of mechanical principles can be demonstrated on one side, and the linkage of the single-sided mechanism combination can be realized after unfolding. Background technique [0002] In order to make the teaching content easier for students to understand, many teaching tools are designed. Courses such as mechanical drawing, mechanical principle, and mechanical design are professional basic courses for students majoring in mechanical engineering. The combination of theory and practical application is relatively close, especially the knowledge about reasoning and calculation in the course. For students majoring in mechanical engineering, it is more difficult to understand and master. In order to allow students to better understand mechanical courses, rese...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems that the existing teaching aids can only perform simple mechanical movements, have a single structure and function, and are bulky, the present invention provides an expandable linkage multifunctional box-type teaching aid.

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