CN209794998U

CN209794998U - Mathematical drawing tool

Info

Publication number: CN209794998U
Application number: CN201920670730.0U
Authority: CN
Inventors: 高祎祺
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2019-12-17
Anticipated expiration: 2029-05-10

Abstract

The utility model relates to a mathematical drawing tool, which comprises a fixed ruler, wherein the top of the fixed ruler is fixedly connected with a triangular ruler, the inner cavity of the triangular ruler is provided with a protractor, the protractor is provided with a first chute, the center of the top of the fixed ruler is rotatably connected with an auxiliary ruler, the moving section of the auxiliary ruler is fixedly provided with a first slider, the first slider is arranged in the first chute, the auxiliary ruler is provided with a scribing groove, the fixed ruler is provided with a second chute, the second chute is internally provided with a second slider, the bottom of the second slider is fixedly provided with a pen cap, the pen cap comprises a fixed sleeve, the bottom of the fixed sleeve is symmetrically connected with a semi-arc sleeve, the outer side of the fixed sleeve is provided with a limiting ring, and the right side of the bottom of the fixed ruler is rotatably provided with a sucking disc, so that the drawing is rich and, the teaching of the mathematics teachers is facilitated, and great convenience is brought to the teaching work of the teachers.

Description

Mathematical drawing tool

Technical Field

The utility model relates to a mathematics tool of drawing belongs to drawing teaching aid technical field.

Background

In the process of mathematical education, a drawing tool is an indispensable teaching tool for a math teacher, the math teacher needs to draw various figures such as coordinate graphs, tables and circles on a blackboard, the teacher often draws the figures according to hand feeling in a classroom, so that the figures are inaccurate and not attractive, the figures and the like are more regular and the blackboard writing is attractive, the teacher often needs to take various drawing tools such as rulers, triangular plates, compasses and the like in class, so that the teaching is very troublesome, the burden of the teacher is increased, a lot of time is delayed, particularly, chapters with more figures need to be continuously erased and then drawn again, the teaching progress is seriously influenced, the teaching efficiency is reduced, the working strength of the teacher is also increased, and when straight lines forming various angles with reference lines need to be drawn on the blackboard, the teaching tool comprising the rulers, Various teaching tools such as compasses and angle measuring instruments have complex drawing process, and partial angles can not be identified, so that the teaching tools are not suitable for on-site blackboard writing.

SUMMERY OF THE UTILITY MODEL

an object of the utility model is to provide a mathematics instrument of drawing has made things convenient for greatly the utility model discloses the use of set square can accelerate teacher's drawing speed, has improved drawing efficiency and drawing accuracy, has made things convenient for mathematics teacher's teaching, has brought very big facility for teacher's teaching work 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:

The utility model provides a mathematics instrument of drawing, includes the fixed ruler, fixed ruler top fixedly connected with set square, the set square inner chamber is provided with the protractor, first spout has been seted up on the protractor, fixed ruler top center rotates and is connected with supplementary chi, supplementary chi removes the fixed first slider that is provided with of section, first slider sets up in first spout, just the ruling groove has been seted up on the supplementary chi, the second spout has been seted up on the fixed ruler, be provided with the second slider in the second spout, the fixed pen socket that is provided with in second slider bottom, the pen socket is including fixed cover, fixed cover bottom symmetric connection has half arc cover, the fixed cover outside is provided with the spacing ring, just fixed ruler bottom right side rotates and is provided with the sucking disc.

Furthermore, the fixed ruler, the set square, the protractor and the auxiliary ruler are all provided with scale marks.

Furthermore, the circle center of the protractor and the rotating shaft of the auxiliary ruler are positioned on the same axis, and the length of the auxiliary ruler is the same as the radius of the protractor.

Furthermore, the first sliding block and the second sliding block are both provided with fixing bolts.

further, a handle is fixedly arranged on the triangular ruler, and anti-skid textures are arranged on the outer surface of the handle.

Furthermore, alignment mark lines are arranged on the auxiliary ruler and the pen cap.

The utility model has the advantages that: the utility model relates to a mathematics instrument of drawing, through setting up the set-square, utilize the set-square to be convenient for the teacher directly to draw the straight line, triangle-shaped, through setting up the auxiliary ruler, make first slider remove in first spout, thereby let the auxiliary ruler rotate to certain angle, then fixed, can be accurate draw angle line and arc at the inslot of ruling, let the size that can draw more accurate, through setting up pen socket and sucking disc, install the chalk on the pen socket, let the second slider remove to the radius of circle in the second spout, it is rotatory to use the sucking disc as the centre of a circle, can make a circle, greatly convenient the utility model discloses the use of set-square can accelerate teacher's drawing speed, improved drawing efficiency and drawing accuracy, made things convenient for teacher's teaching, brought very big facility for teacher's teaching work.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a front view of a mathematical drawing tool of the present invention;

FIG. 2 is a cross-sectional view of a mathematical drawing tool of the present invention;

FIG. 3 is a schematic view of a pen cap structure of a mathematical drawing tool of the present invention;

Reference numbers in the figures: 1. fixing a ruler; 2. a set square; 3. a protractor; 4. a first chute; 5. an auxiliary scale; 6. a first slider; 7. marking a groove; 8. a second chute; 9. a second slider; 10. a pen cap; 11. fixing a sleeve; 12. a semi-arc sleeve; 13. a limiting ring; 14. a suction cup; 15. fixing the bolt; 16. a handle.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

referring to fig. 1-3, the present invention provides a technical solution:

A mathematical drawing tool comprises a fixed ruler 1, wherein the top of the fixed ruler 1 is fixedly connected with a triangular ruler 2, a teacher can directly draw a straight line and a triangle by using the triangular ruler 2, an inner cavity of the triangular ruler 2 is provided with a protractor 3, the protractor 3 is provided with a first chute 4, the top center of the fixed ruler 1 is rotatably connected with an auxiliary ruler 5, a moving section of the auxiliary ruler 5 is fixedly provided with a first slide block 6, the first slide block 6 is arranged in the first chute 4, the auxiliary ruler 5 is provided with a scribing groove 7, the first slide block 6 moves in the first chute 4, so that the auxiliary ruler 5 rotates to a certain angle and is fixed, an angle line and an arc can be accurately drawn in the scribing groove 7, the drawing size is more accurate, the fixed ruler 1 is provided with a second chute 8, and the second chute 8 is internally provided with a second slide block 9, the fixed pen socket 10 that is provided with in second slider 9 bottom, pen socket 10 is including fixed cover 11, fixed cover 11 bottom symmetric connection has semi-arc cover 12, fixed cover 11 outside is provided with spacing ring 13, just 1 bottom right side of fixed chi is rotated and is provided with sucking disc 14, installs the chalk on pen socket 10, lets second slider 9 remove to the radius of circle in second spout 8 to sucking disc 14 is the centre of a circle, can make circularly after the rotation.

More specifically, all be provided with the scale mark on fixed ruler 1, set square 2, protractor 3, the auxiliary ruler 5, the centre of a circle and the auxiliary ruler 5 axis of rotation of protractor 3 are in on the same axis, just the length of auxiliary ruler 5 is the same with protractor 3 radius, the rotation of the auxiliary ruler of being convenient for, all be provided with fixing bolt 15 on first slider 6, the second slider 9, it is just fixed to remove the slider to corresponding distance rear, and is more accurate when making the drawing, the fixed handle 16 that is provided with on set square 2, just 16 surfaces of handle all are provided with anti-skidding texture, and convenient teacher's is handheld when drawing facilitates the use, be provided with on auxiliary ruler 5, the pen socket 10 and aim at the marking for the slider is more accurate when moving distance.

The utility model discloses the theory of operation: when using, the teacher draws through the handheld this instrument of handle 16, utilize set square 2 to be convenient for the teacher directly to draw the straight line, triangle-shaped, make first slider 6 remove in first spout 4, thereby let auxiliary ruler 5 rotate, it is fixed to certain angle after, can be accurate draw angle line and arc in ruling groove 7, it is more accurate to let the size that can draw, install the chalk on pen socket 10, let second slider 9 remove to the radius after-fixing of circle in second spout 8, it is rotatory to use sucking disc 14 as the centre of a circle, can make circularly, can accelerate teacher's drawing speed, drawing efficiency and drawing accuracy have been improved, make things convenient for mathematics teacher's teaching.

the above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims

1. A mathematical drawing tool comprising a fixed ruler (1), characterized in that: the top of the fixed ruler (1) is fixedly connected with a set square (2), an inner cavity of the set square (2) is provided with a protractor (3), a first sliding groove (4) is formed in the protractor (3), the top center of the fixed ruler (1) is rotatably connected with an auxiliary ruler (5), a moving section of the auxiliary ruler (5) is fixedly provided with a first sliding block (6), the first sliding block (6) is arranged in the first sliding groove (4), a scribing groove (7) is formed in the auxiliary ruler (5), a second sliding groove (8) is formed in the fixed ruler (1), a second sliding block (9) is arranged in the second sliding groove (8), a pen cap (10) is fixedly arranged at the bottom of the second sliding block (9), the pen cap (10) comprises a fixed sleeve (11), the bottom of the fixed sleeve (11) is symmetrically connected with a semi-arc-shaped sleeve (12), a limit ring (13) is arranged outside the fixed sleeve (11), and a sucker (14) is rotatably arranged on the right side of the bottom of the fixed ruler (1).

2. A mathematical drawing tool as defined in claim 1, wherein: the fixed ruler (1), the set square (2), the protractor (3) and the auxiliary ruler (5) are all provided with scale marks.

3. A mathematical drawing tool as defined in claim 1, wherein: the circle center of the protractor (3) and the rotating shaft of the auxiliary ruler (5) are positioned on the same axis, and the length of the auxiliary ruler (5) is the same as the radius of the protractor (3).

4. A mathematical drawing tool as defined in claim 1, wherein: and the first sliding block (6) and the second sliding block (9) are both provided with fixing bolts (15).

5. A mathematical drawing tool as defined in claim 1, wherein: the set square (2) is fixedly provided with a handle (16), and the outer surface of the handle (16) is provided with anti-skidding textures.

6. A mathematical drawing tool as defined in claim 1, wherein: alignment marked lines are arranged on the auxiliary ruler (5) and the pen cap (10).