CN211808700U

CN211808700U - Drawing tool for mathematical education

Info

Publication number: CN211808700U
Application number: CN202020335040.2U
Authority: CN
Inventors: 姜小霞; 田应信; 季文文
Original assignee: Tongren Polytechnic College
Current assignee: Tongren Polytechnic College
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-10-30
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses a graphics primitive for mathematical education, including the base, the base has laid the mounting bracket for rectangular plate and up end, rotates on the mounting bracket and is connected with the carousel, and vertical bracing piece has been laid to one side of mounting bracket, and the one end of bracing piece is fixed in the up end of base, and the other end of bracing piece is connected with the fixed plate, has laid vertical spout on the fixed plate, is equipped with the slider in the spout. The drawing tool for mathematical education has a simple structure and is easy to use; the assembly seat is arranged, so that a user can conveniently embed the chalk in the assembly seat and fix the chalk through the limiting bolt, and the position of the chalk can not move during drawing; the position of the drawing rod is fixed under the action of no external force by arranging the limiting mechanism, so that the drawing rod is convenient to store and place; in addition, through being provided with the handle on the carousel, the person of being convenient for directly shakes the handle and can draw out the ellipse of sizing determination, has guaranteed the quality of teaching, is worth using widely.

Description

Drawing tool for mathematical education

Technical Field

The utility model relates to a teaching technical field specifically is a graphics primitive is used in mathematical education.

Background

Mathematics is a subject of researching concepts such as quantity, structure, change, space, information and the like, and belongs to one of formal science from a certain angle; mathematics also plays an irreplaceable role in human historical development and social life, and is an essential basic tool for learning and researching modern scientific technology. In actual mathematical teaching, a teacher sometimes needs to explain the relevant knowledge of an ellipse, and in order to ensure the teaching effect, a textbook needs to draw relevant figures on a blackboard for explanation; in the existing teaching tools, no teaching tool specially used for drawing the ellipse exists, which is not convenient for the teacher to explain in class. Accordingly, there is a need for improvements in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a graphics primitive is used in mathematics teaching to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a drawing tool for mathematical education comprises a base, wherein the base is a rectangular plate, an installation frame is arranged on the upper end face of the base, a turntable is rotatably connected onto the installation frame, a vertical supporting rod is arranged on one side of the installation frame, one end of the supporting rod is fixed on the upper end face of the base, the other end of the supporting rod is connected with a fixed plate, a vertical sliding groove is arranged on the fixed plate, and a sliding block is assembled in the sliding groove; as a further aspect of the present invention: the rotary table is eccentrically connected with a drawing rod, the drawing rod is rotatably connected with the rotary table, one side of the drawing rod is rotatably connected with the sliding block, one end of the drawing rod extends to the oblique upper part of the fixing plate and is provided with an assembling seat, and the assembling seat is used for assembling chalks to draw.

As a further aspect of the present invention: the assembly seat is cylindrical, a non-through assembly groove is formed in the center of the assembly seat and used for embedding chalk, a plurality of limiting bolts are evenly distributed on the periphery of the assembly seat and connected with the assembly seat through matching threads, and one ends of the limiting bolts extend to the inner side of the assembly seat.

As a further aspect of the present invention: and a limiting mechanism is arranged on one side of the sliding chute and comprises a positioning pin, the positioning pin is fixed on the fixing plate, a spring is connected to the positioning pin, and the other end of the spring is connected with the drawing rod.

As a further aspect of the present invention: the handle is eccentrically arranged on the rotary disc and is rotationally connected with the rotary disc.

As a further aspect of the present invention: the periphery of the handle is provided with an anti-slip sleeve made of rubber.

Compared with the prior art, the beneficial effects of the utility model are that: the drawing tool for mathematical education has a simple structure and is easy to use; the assembly seat is arranged, so that a user can conveniently embed the chalk in the assembly seat and fix the chalk through the limiting bolt, and the position of the chalk can not move during drawing; the position of the drawing rod is fixed under the action of no external force by arranging the limiting mechanism, so that the drawing rod is convenient to store and place; in addition, through being provided with the handle on the carousel, the person of being convenient for directly shakes the handle and can draw out the ellipse of sizing determination, has guaranteed the quality of teaching, is worth using widely.

Drawings

Fig. 1 is a schematic structural view of a drawing tool for mathematical education.

Fig. 2 is a schematic structural diagram of an assembly seat in a drawing tool for mathematical education.

FIG. 3 is a schematic view of a connection structure of an assembly seat and a limit bolt in the drawing tool for mathematical education.

In the figure: 1-base, 2-mounting rack, 3-rotary table, 4-handle, 5-drawing rod, 6-supporting rod, 7-fixing plate, 8-positioning pin, 9-spring, 10-sliding groove, 11-sliding block, 12-assembly seat, 13-assembly groove and 14-limiting bolt.

Detailed Description

In the following description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-3, a drawing tool for mathematical education comprises a base 1, wherein the base 1 is a rectangular plate, an installation frame 2 is arranged on the upper end surface of the base 1, a rotary table 3 is rotatably connected to the installation frame 2, a vertical support rod 6 is arranged on one side of the installation frame 2, one end of the support rod 6 is fixed on the upper end surface of the base 1, the other end of the support rod 6 is connected with a fixed plate 7, a vertical chute 10 is arranged on the fixed plate 7, and a slide block 11 is assembled in the chute 10; 3 eccentric connections of carousel have drawing pole 5, and drawing pole 5 rotates with carousel 3 to be connected, and one side and the slider 11 of drawing pole 5 rotate to be connected, and the one end of drawing pole 5 extends to the oblique top of fixed plate 7 and has laid assembly seat 12, and assembly seat 12 is used for assembling the chalk and draws.

The specific structure of the assembling seat 12 is not limited, and preferably, in this embodiment, the assembling seat 12 is cylindrical, a non-through assembling groove 13 is distributed at the center of the assembling seat 12, the assembling groove 13 is used for embedding chalk, a plurality of limiting bolts 14 are uniformly distributed on the periphery of the assembling seat 12, the limiting bolts 14 are connected with the assembling seat 12 through matching threads, and one end of each limiting bolt 14 extends to the inner side of the assembling seat 12.

Furthermore, a limiting mechanism is arranged on one side of the sliding groove 10, the specific structure of the limiting mechanism is not limited, preferably, in the embodiment, the limiting mechanism comprises a positioning pin 8, the positioning pin 8 is fixed on the fixing plate 7, a spring 9 is connected to the positioning pin 8, and the other end of the spring 9 is connected with the drawing rod 5.

The working principle of the embodiment is as follows:

one side of the base 1 is attached to a blackboard to be kept horizontal, chalks are embedded into the assembling groove 13, the extending length of the chalks is adjusted, and the limiting bolts 14 are rotated to fix the chalks; the base 1 is pressed by one hand, the rotary table 3 is slowly rotated by the other hand, so that the chalk moves along the surface of the blackboard, and after the rotary table 3 rotates for a circle, the chalk draws an ellipse with a certain size.

Example 2

In embodiment 1, an operator needs to press the base 1 with one hand and slowly rotate the turntable 3 with the other hand to enable the chalk to move along the surface of the blackboard, so that the rotation of the turntable 3 is not easily controlled during drawing, and the drawn elliptical shape is affected; therefore, the present embodiment is improved on the basis of embodiment 1, and the improvement is as follows: the handle 4 is eccentrically arranged on the rotary table 3, the handle 4 is rotatably connected with the rotary table 3, and the anti-skidding sleeve made of rubber is arranged on the periphery of the handle 4, so that an operator can press the base 1 with one hand and rotate the handle 4 with the other hand to rotate the rotary table 3 for a circle, and the drawing quality of the graph is improved.

It should be particularly noted that, although the present specification describes embodiments, each embodiment does not include only an independent technical solution, and such description of the specification is only for clarity, and those skilled in the art should take the specification as a whole, and technical solutions in various embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art, and the above-mentioned embodiments only express the preferred embodiments of the technical solutions, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the claims of the technical solutions. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications, improvements and substitutions can be made, which all fall within the protection scope of the present technical solution. The protection scope of this technical solution patent should be subject to the appended claims.

Claims

1. The drawing tool for the mathematical teaching comprises a base (1) and is characterized in that the base (1) is a rectangular plate, an installation frame (2) is arranged on the upper end face of the base, a rotary table (3) is rotatably connected to the installation frame (2), a vertical supporting rod (6) is arranged on one side of the installation frame (2), one end of the supporting rod (6) is fixed on the upper end face of the base (1), the other end of the supporting rod (6) is connected with a fixing plate (7), a vertical sliding groove (10) is arranged on the fixing plate (7), and a sliding block (11) is assembled in the sliding groove (10); carousel (3) eccentric connection has drawing pole (5), and drawing pole (5) rotate with carousel (3) to be connected, and one side and slider (11) of drawing pole (5) rotate to be connected, and the one end of drawing pole (5) extends to the oblique top of fixed plate (7) and has laid assembly seat (12).

2. The drawing tool for mathematics teaching as claimed in claim 1, wherein said assembly seat (12) is cylindrical, a non-through assembly groove (13) is arranged at the center of the assembly seat (12), a plurality of limit bolts (14) are uniformly arranged on the periphery of the assembly seat (12), the limit bolts (14) are connected with the assembly seat (12) through matching threads, and one end of the limit bolt (14) extends to the inner side of the assembly seat (12).

3. The drawing tool for mathematical education as set forth in claim 1, wherein a limiting mechanism is disposed on one side of the sliding groove (10), the limiting mechanism includes a positioning pin (8), the positioning pin (8) is fixed on the fixing plate (7), a spring (9) is connected to the positioning pin (8), and the other end of the spring (9) is connected to the drawing rod (5).

4. Drawing tool for mathematical education as claimed in claim 2 characterized in that the turntable (3) is eccentrically provided with a handle (4), the handle (4) being rotatably connected to the turntable (3).

5. Drawing tool for mathematics teaching according to claim 4, characterized in that the handle (4) is provided with an anti-slip cover on its periphery.

6. The drawing tool for mathematics teaching of claim 5, wherein the material of said anti-slip cover is rubber.