CN204915026U - How much multi -functional teaching aids - Google Patents

Abstract

The utility model relates to a multifunctional geometric teaching aid. Its main technical feature is to realize the functions of various geometric teaching aids such as ruler, set square, and protractor by using parts such as I-shaped groove, slider, protractor, water bulb, jacket, chalk jacket, jacket base, and laser. The utility model takes the practicality and simplicity of teaching tools as the starting point, integrates a variety of commonly used geometric teaching tools, has simple structure, perfect function, energy saving and environmental protection, simple operation, easy to carry, and has strong popularization and application value. It is a convenient and practical multifunctional geometry teaching aid.

Description

Multifunctional Geometry Teaching Aids

technical field

The utility model relates to the technical field of teaching aids, in particular to multifunctional teaching aids for making geometric figures.

Background technique

Teaching activities are bilateral activities in which teachers and students participate together. In the process of this activity, there is not only the transfer of knowledge between teachers and students, but also the emotional exchange between people. There are many ways to achieve teacher-student interaction and two-way communication, among which the commonly used and effective one is the appropriate use of teaching aids to narrate with sound and emotion. A suitable teaching aid is like a link, which will closely connect the content and atmosphere of the classroom, build a bridge for two-way communication between teachers and students, enliven the classroom atmosphere, and promote the harmonious development of teaching and learning in the classroom. From elementary school to university, teachers have many teaching aids, but most of them are single-function, various in variety, and inconvenient to carry. In line with the purpose of simple structure, perfect function, easy operation and convenient carrying, we have rationally assembled a spirit level, compass, protractor, chalk, laser light, etc. into one body, and designed a new multi-functional geometric teaching aid. Teaching aids contain a variety of commonly used teaching functions, are easy to carry, and are convenient for teachers to teach and students to learn.

Contents of the invention

The purpose of this utility model is to provide a multifunctional geometric teaching aid with simple structure, light weight, comprehensive functions and convenient use in order to solve the above-mentioned deficiencies.

The technical solution that the utility model adopts in order to solve above-mentioned deficiency is as follows:

Multifunctional geometric teaching aid, it is mainly composed of ruler, movable protractor, water polo bubble, laser, chalk jacket, jacket holder, jacket and sharp corner assembly. There is a sliding block that can move freely. The protractor is fixed with a bolt on the right side of the ruler, and there is an arc groove to make the two rulers of the teaching aid spread out at 180°. The sliding block on the side where the chalk is installed can be rotated 90 degrees to accommodate two Compasses, one of which is to make the chalk cover parallel to the ruler where it is located, and the rotatable needle point on the ruler on the other side is turned parallel to the ruler where it is located (it can also form a certain angle inward), forming a common compasses. And the slide block is rotated 90 degrees again, so that the chalk cover is perpendicular to the ruler, and the needle point on the other side is also turned to be perpendicular to the ruler. The slider can slide on the I-shaped groove of the ruler where it is located. When drawing, the slider is fixed by bolts, and the required radius value is determined by the scale on the ruler. Large-radius circles and arcs can be drawn to form special compasses.

The beneficial effects that the utility model can achieve by adopting the above-mentioned technical solutions are: simple structure, convenient manufacture, one-time forming of parts by laser cutting, no interface, not easy to be damaged, long service life and light weight. And set a variety of teaching aids in one, full-featured. Any product needs to be holistic, relevant, purposeful and adaptable to the environment. In terms of the guiding ideology of the design of multi-functional teaching aids, by comparing with the functions of teaching aids in the classroom experience all the time, innovations are mainly made in structure and function. In terms of design objects, the mutual coordination between teachers and teaching aids is considered, which facilitates teachers' teaching, simplifies teachers' operation process, mobilizes teachers' teaching enthusiasm, fully exerts the functions of teaching aids, and attracts students' learning attention. Advanced design methods such as optimized design and industrial artistic modeling design are adopted to make this teaching aid closer to classroom teaching, fully reflecting the practicality and functionality of teaching aids.

Description of drawings

Fig. 1 is the schematic diagram when the utility model expands and contracts.

Fig. 2 is a schematic diagram of the utility model after being expanded.

Among them: 1—protractor, 2—right ruler, 3—bolt, 4—slider, 5—chalk cover, 6—jacket base, 7—sharp assembly, 8—laser, 9—jacket, 10 -water bulb, 11-left side ruler, 12-hollow cylindrical bolt.

specific implementation plan

Two straightedges of the teaching aid are unfolded at 180°. The protractor 1 and the right ruler 2 are fixed with the bolt 3, and the function of the straightedge can be realized by laying it flat on the blackboard. ruler function. When measuring the angle, the center of the rotating shaft corresponds to the vertex of the angle, and the inner sides of the two rulers of the teaching aid correspond to the two sides, and the corresponding angle indication can be read on the protractor 1 . Similarly, you can also draw the required angle in this state. The slide block 4 on one side of the chalk is installed can be rotated 90 degrees to adapt to two kinds of compasses, one of which is to make the chalk cover 5 parallel to the ruler where it is placed, and realize the normal compass function at this moment, and the rotatable one on the ruler on the other side Needle point 7 turns to the left side ruler 11 that is parallel to it (also can form certain angle inwardly), constitutes the compasses common to everyone. Slide block 4 is rotated 90 degrees, and chalk cover 5 is perpendicular to place ruler, and the other side needle point also turns to be perpendicular to place ruler. The slide block 4 can slide on the straightedge I-shaped groove where it is located. When drawing, the slide block 4 is fixed by the bolt 3, and the required radius value is determined by the scale on the straightedge, and large-radius circles and arcs can be drawn. When it is necessary to draw the section line, install the auxiliary part 45-degree ruler on the I-shaped groove, and the drawing of the section line can be realized by equidistant horizontal movement of the 45-degree ruler. The straightedge is fixed with screws, so that the structure of the right-angled triangle can be realized, and right angles can be drawn. When drawing two views, long alignment and high alignment are required. This function can be realized by swinging the laser 8 so that the light hits the corresponding straight line, and the corresponding straight line is drawn, and the laser 8 is fixed on the jacket through the jacket 9. On the base 6, the jacket base 6 is fixed on the left ruler 11.

Claims (5)

1. Multifunctional geometric teaching aids, characterized in that: the utility model includes two straightedges with standard scale sides, an active protractor, a water bulb, a laser, a chalk jacket, a jacket holder, a jacket and a sharp angle assembly. One of the straightedges has an I-shaped groove and is equipped with a freely movable slider. The protractor is fixed with the other straightedge by bolts and has an arc groove. °, the slider on the side where the chalk is installed turns 90 degrees to realize two circular scale modes. 2. The multifunctional geometric teaching aid according to claim 1, characterized in that: the two rulers of the teaching aid are unfolded at 180°, and the protractor and the right ruler are fixed with bolts. 3. The multifunctional geometric teaching aid according to claim 1, characterized in that: the slide block on the side where the chalk is installed is rotated 90 degrees to adapt to two kinds of compasses, one of which is to make the chalk cover parallel to the ruler, and the other side The tip of the rotating needle on the ruler turns parallel to the ruler on which it rests. 4. The multifunctional geometric teaching aid according to claim 1, characterized in that: the slider is rotated 90 degrees so that the chalk cover is perpendicular to the ruler, and the needle point on the other side is also turned to be perpendicular to the ruler, and the slider is at It slides on the I-shaped groove of the ruler where it is located. 5. The multifunctional geometric teaching aid according to claim 1, characterized in that: two rulers form 90° each other, and a protractor and a ruler on one side are fixed by screws.