CN205272974U - Higher mathematics coordinate drawing device - Google Patents

Abstract

The utility model discloses a higher mathematics coordinate drawing device relates to the teaching equipment field, and this higher mathematics coordinate drawing device's perpendicular chi and transverse ruler all are carved with the scale, erect the setting -out hole that chi and transverse ruler center department all opened arrow point shape, and open one side of perpendicular chi has the spout, and the spout inner wall is fixed with interior liner, and transverse ruler's one end is equipped with the lug, and bulge loop and spout interference fit. The teacher can be with the help of setting -out hole paint out the fast abscissa and the ordinate of coordinate axle during the use to according to the scale coordinate scale that draws, transverse ruler can freely move erecting chi one side, can help the teacher to find the position that function curve is ordered in the coordinate system quickly accurate, has improved drawing efficiency.

Description

A Coordinate Drawing Device for Advanced Mathematics

technical field

The utility model relates to the field of teaching equipment, in particular to an advanced mathematics coordinate drawing device.

Background technique

In the teaching process of advanced mathematics, teachers often need to draw coordinate diagrams on the blackboard and explain various curve functions. It is often very inconvenient to draw coordinate axes and function curves with a ruler or triangular board used in ordinary mathematics teaching. It is difficult to accurately determine the position of each point in the function curve according to the coordinate axis values. Drawing takes too long and affects the teaching progress.

Utility model content

The technical problem to be solved by the utility model is to provide a coordinate drawing device for advanced mathematics. By designing a vertical ruler and a horizontal ruler connected by a bump and a chute, the horizontal ruler can slide freely on the vertical ruler, so as to draw quickly and accurately Find the position of each point in the function curve.

In order to achieve the above object, the utility model provides the following technical solutions: a coordinate drawing device for advanced mathematics, which is characterized in that: the coordinate drawing device for advanced mathematics includes rectangular strip-shaped vertical rulers and horizontal rulers with the same length and thickness, Both the vertical ruler and the horizontal ruler are engraved with scales, and the centers of the vertical ruler and the horizontal ruler are provided with arrow-shaped drawing holes. One side of the vertical ruler is provided with a chute with a T-shaped section, and the inner wall of the chute is fixed with an inner liner. , One end of the horizontal ruler is provided with a T-shaped projection in cross section, and the projection of the horizontal ruler and the chute of the vertical ruler are in interference fit with each other.

Preferably, the horizontal ruler, the vertical ruler and the bumps are all made of aluminum alloy.

Preferably, the length of the chute is equal to the length of the vertical ruler.

Preferably, the inner liner is made of rubber material, and the length of the inner liner is equal to the length of the chute.

Preferably, the protrusion and the horizontal ruler are integral structures, and after the protrusion is installed inside the chute, the horizontal ruler and the vertical ruler are perpendicular to each other.

The beneficial effects of adopting the above technical scheme are: the vertical ruler and the horizontal ruler of the advanced mathematics coordinate drawing device are all engraved with scales, the centers of the vertical ruler and the horizontal ruler are all provided with arrow-shaped drawing line holes, and one side of the vertical ruler is provided with A chute, the inner wall of the chute is fixed with an inner liner, one end of the horizontal ruler is provided with a protrusion, and the convex ring is in interference fit with the chute. When using it, the teacher can quickly draw the abscissa and ordinate of the coordinate axis with the help of the line drawing hole, and draw the coordinate scale according to the scale. The horizontal ruler can move freely on the side of the vertical ruler, which can help the teacher quickly and accurately find the function in the coordinate system The position of the curve point improves the drawing efficiency.

Description of drawings

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

Fig. 1 is the structural representation of a kind of advanced mathematics coordinate drawing device of the present utility model;

Fig. 2 is an enlarged schematic diagram of the structure of the junction of the vertical ruler and the horizontal ruler shown in Fig. 1 .

Among them, 1-vertical ruler, 2-horizontal ruler, 3-drawing hole, 4-scale, 5-bulb, 6-chute, 7-inner liner.

detailed description

A preferred embodiment of an advanced mathematics coordinate drawing device of the present utility model will be described in detail below in conjunction with the accompanying drawings.

Fig. 1 and Fig. 2 show the specific embodiment of a kind of higher mathematics coordinate drawing device of the present utility model: this higher mathematics coordinate drawing device comprises length and thickness all the same rectangular strip vertical ruler 1 and horizontal ruler 2, vertical ruler 1 and horizontal ruler 2 The horizontal ruler 2 is all engraved with the scale 4, and the center of the vertical ruler 1 and the horizontal ruler 2 is provided with an arrow-shaped line drawing hole 3. The drawing device can be leaned against the blackboard, and the pen is inserted into the line drawing hole 3. You can quickly draw the abscissa and ordinate of the coordinate axis with arrows.

As shown in Figure 2, one side of the vertical ruler 1 is provided with a chute 6 with a T-shaped section, the inner wall of the chute 6 is fixed with an inner liner 7, and one end of the horizontal ruler 2 is provided with a projection 5 with a T-shaped section. And the protrusion 5 of the horizontal ruler 2 and the chute 6 of the vertical ruler 1 are mutually interference fit, and are closely combined, so that the horizontal ruler 2 is not easy to slide and fall off on the side of the vertical ruler 1, which is convenient for drawing.

Combining Figure 1 and Figure 2, the horizontal ruler 2, the vertical ruler 1, and the bump 5 are all made of aluminum alloy, which is durable and has good corrosion resistance. The length of the chute 6 is equal to the length of the vertical ruler 1, the inner liner 7 is made of rubber material, and the length of the inner liner 7 is equal to the length of the chute 6, so that the horizontal ruler 2 can reach the maximum sliding range of the vertical ruler 1 .

The protruding block 5 and the horizontal ruler 2 are an integral structure, and after the protruding block 5 is installed inside the chute 6, the horizontal ruler 2 and the vertical ruler 1 are perpendicular to each other, which is suitable for drawing a rectangular coordinate system, and the horizontal ruler 2 corresponds to the The x-axis and the vertical ruler 1 correspond to the y-axis in the rectangular coordinate system, which improves the drawing efficiency and saves the time spent on drawing in class.

During class, the teacher can use the line drawing hole 3 to quickly draw the abscissa and ordinate of the coordinate axis, and draw the coordinate scale according to the scale 4 on the vertical ruler 1 and the horizontal ruler 2. The horizontal ruler 2 can be freely on the side of the vertical ruler 1. Move can help teachers quickly and accurately find the position of the function curve point in the coordinate system, improving the drawing efficiency.

The above are only preferred embodiments of the present utility model, and it should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the present utility model, some deformations and improvements can also be made, and these all belong to this utility model. Protection scope of utility model.

Claims (5)

1. A coordinate drawing device for advanced mathematics is characterized in that: said coordinate drawing device for advanced mathematics comprises a rectangular strip-shaped vertical ruler (1) and a horizontal ruler (2) that are all identical in length and thickness, vertical ruler (1) and horizontal ruler (2). Both the horizontal ruler (2) are engraved with scales (4), the centers of the vertical ruler (1) and the horizontal ruler (2) are provided with arrow-shaped line drawing holes (3), and one side of the vertical ruler (1) is provided with a section A T-shaped chute (6), the inner wall of the chute (6) is fixed with an inner liner (7), and one end of the cross ruler (2) is provided with a T-shaped projection (5) in section, and the cross ruler (2 ) and the chute (6) of the vertical ruler (1) are interference fit with each other. 2. The advanced mathematics coordinate drawing device according to claim 1, characterized in that: the horizontal ruler (2), the vertical ruler (1), and the bump (5) are all made of aluminum alloy. 3. The advanced mathematics coordinate drawing device according to claim 1, characterized in that: the length of the chute (6) is equal to the length of the vertical ruler (1). 4. The advanced mathematics coordinate drawing device according to claim 1, characterized in that: the inner liner (7) is made of rubber material, and the length of the inner liner (7) is equal to the length of the chute (6) . 5. The advanced mathematics coordinate drawing device according to claim 1, characterized in that: the bump (5) and the ruler (2) are integral structures, and the bump (5) is loaded into the chute (6) After the interior, the horizontal ruler (2) and the vertical ruler (1) are perpendicular to each other.