CN202795836U - Image demonstration device of helical line function - Google Patents

Abstract

The utility model relates to an image demonstration device of a spiral function, which belongs to a teaching tool, and includes a base and a column arranged on the base, and is characterized in that: the base is provided with a slideway, the column is located in the slideway, and coordinate points are arranged on the column, A hanging ring is arranged opposite to the coordinate point, a winding wire for representing a function image is arranged in the hanging ring, and a suction cup is arranged at the lower end of the base. The utility model has reasonable structural design, ingenious and novel concept, simple and practical, three-dimensional structure is easier for students to understand, makes the classroom rhythm compact, not only easy to attract students' attention, but also easier for students to truly understand relevant knowledge, and is suitable for expressing spiral The image of various functions such as line function, space curve circle, ellipse, etc. In addition, the suction cup at the lower end of the base is easy to fix, which is convenient for teachers to teach. After use, the handle is also easy to carry, the manufacturing cost is low, and it is easy to popularize and apply on a large scale.

Description

Graphic Demonstration Device of Spiral Function

Technical field:

The utility model belongs to teaching tools, in particular to an image demonstration device of a spiral function.

Background technique:

In the actual teaching of spiral functions, most teachers can only explain out of thin air, and students can only rely on imagination to understand, such teaching efficiency is very low. Although some schools use multimedia teaching and use computers to demonstrate images when teaching this part of knowledge, the formation process of function images is affected by computer programs, and students cannot clearly understand the essence of spiral function, which makes students understand Applied understanding of the helix function is limited.

Invention content:

The purpose of this utility model is to provide a kind of image demonstration device of helical function in order to overcome the shortcomings of the above-mentioned prior art, which is simple in structure, easy to use, and easy to be popularized and applied on a large scale.

The technical solution adopted by the utility model is: the image demonstration device of the spiral function, including a base, and a column on the base, characterized in that: the base is provided with a slideway, the column is located in the slideway, and the column is provided with The coordinate point is provided with a hanging ring opposite to the coordinate point, and a winding wire for representing a function image is arranged in the hanging ring, and a suction cup is arranged at the lower end of the base.

The upper end of the column is provided with a cover plate with a slideway corresponding to the column, and the upper end of the cover plate is provided with a handle.

The hanging ring is arranged on the outside of the column.

The beneficial effects of the utility model are: reasonable structural design, ingenious and novel conception, simple and practical, three-dimensional structure is easier for students to understand, can make the classroom rhythm compact, not only easy to attract students' attention, but also easier for students to truly understand relevant knowledge , and is suitable for representing images of various functions such as helical function, space curve circle, ellipse, etc. In addition, the suction cup at the lower end of the base is easy to fix, which is convenient for teachers to teach, and after use, the handle is also easy to carry, the manufacturing cost is low, and it is easy to popularize and apply on a large scale.

Description of drawings:

Fig. 1 is a structural representation of the utility model.

Detailed ways:

With reference to Fig. 1, the image demonstration device 1 of this helical line function comprises base 6, and the column 3 that is located on the base 6, it is characterized in that: base 6 is provided with slideway, column 3 is positioned at slideway, on column 3 A coordinate point is provided, and a hanging ring 4 is arranged opposite to the coordinate point, and a winding wire 5 for representing a function image is arranged in the hanging ring 4 , and a suction cup 7 is arranged at the lower end of the base 6 . The upper end of the column 3 is provided with a cover plate 2 with a slideway corresponding to the column 3 , and the upper end of the cover plate 2 is provided with a handle 1 . The hanging ring 4 is arranged on the outside of the column 3 . When explaining the helical function, the teacher first fixes the base 6 on the desk through the suction cup 7, then adjusts the position of the column 3 to change the radius of the bottom circle, and then passes the winding 5 through the suspension according to the expression of the helical function. The traces of ring 4 and winding 5 can represent the image of the required helical function. The utility model has reasonable structural design, ingenious and novel concept, simple and practical, three-dimensional structure is easier for students to understand, makes the classroom rhythm compact, not only easy to attract students' attention, but also easier for students to truly understand relevant knowledge, and is suitable for expressing spiral The image of various functions such as line function, space curve circle, ellipse, etc. In addition, the suction cup 7 at the lower end of the base 6 is easy to fix, and is convenient for teachers to teach. After use, the handle 1 is also easy to carry, has low manufacturing cost, and is easy to popularize and apply on a large scale.

Claims (3)

1. An image demonstration device of a spiral function, comprising a base (6), and a column (3) arranged on the base (6), characterized in that: the base (6) is provided with a slideway, and the column (3) ) is located in the slideway, a coordinate point is set on the column (3), and a hanging ring (4) is arranged opposite to the coordinate point, and a winding wire (5) for representing a function image is arranged inside the hanging ring (4), and the base ( 6) The lower end is provided with a suction cup (7). 2. The image demonstration device of the spiral function according to claim 1, characterized in that: the upper end of the column (3) is provided with a cover plate (2) with a slideway corresponding to the column (3), and the cover A handle (1) is provided on the upper end of the board (2). 3. The image demonstration device of the spiral function according to claim 1, characterized in that: the hanging ring (4) is set on the outside of the column (3).

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