Geometric teaching aid with folding storage function for mechanical drawing

Abstract

The invention discloses a geometric teaching aid with the folding storage function for mechanical drawing, and relates to the technical field of mechanical drawing teaching aids. The geometric teaching aid comprises a base, and the top of the base is provided with an adjusting mechanism. One side of the adjusting mechanism is movably connected with a teaching aid body, and one side of the adjusting mechanism is slidably connected with a projection mechanism. Side plates are both fixedly connected to the two sides of the top of the base, and a plurality of cover plates are hinged to the top ofthe base and attached to the side plates on the two sides. The adjusting mechanism comprises a first sliding block. A first sliding groove is formed in the top of the base. According to the geometricteaching aid with the folding storage function for mechanical drawing, by arranging the teaching aid mechanism, a first sliding rod slides to pull a limiting magnetic ring to be separated from a thirdmagnet, a clamping base rotates and deviates to adjust the orientations of different geometric teaching aid bodies, the base is attached to an external drawing paper, drawing can be directly conducted through the teaching aid bodies, and the installation adaptability of different geometric teaching aids can be remarkably improved; and the assembling difficulty is reduced, the mechanical drawing teaching difficulty is effectively reduced, and the overall using requirement is met.

Description

technical field [0001] The invention relates to the technical field of mechanical drawing teaching aids, in particular to a geometric teaching aid for mechanical drawing with the function of folding and storing. Background technique [0002] Mechanical drawing is a discipline that uses drawings to accurately represent the structural shape, size, working principle and technical requirements of machinery. Drawings are composed of graphics, symbols, words and numbers, and are technical documents that express design intentions, manufacturing requirements and exchange experience. In teaching, it is convenient for students to understand the spatial correspondence and mapping relationship of mechanical drawing. It is generally necessary to use geometric teaching aids to explain the teaching content, and to assist the purpose of drawing through teaching aids. [0003] The Chinese patent literature publication number is: CN210895898U patent discloses a kind of demonstration teaching ...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings in the prior art, such as: 1. lack of cooperation of geometric teaching aids, unable to realize the teaching needs of spatial three-dimensional geometry; Not intuitive enough; 3. The adjustment direction is single, and the assembly of projected objects is relatively complicated, and the assembly during teaching is a waste of teaching time. A geometric teaching aid for mechanical drawing with folding storage function is proposed

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