CN213734344U - Supplementary mathematical teaching aid of drawing - Google Patents
Supplementary mathematical teaching aid of drawing Download PDFInfo
- Publication number
- CN213734344U CN213734344U CN202022808915.9U CN202022808915U CN213734344U CN 213734344 U CN213734344 U CN 213734344U CN 202022808915 U CN202022808915 U CN 202022808915U CN 213734344 U CN213734344 U CN 213734344U
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- Prior art keywords
- groove
- ruler
- protractor
- scribing
- marking
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 241000252254 Catostomidae Species 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of mathematical teaching aids, in particular to a mathematical teaching aid for assisting drawing, which aims to solve the problems that when the angle of a corner needs to be drawn, the angle gauge is required to be operated step by step and is relatively troublesome, besides, in order to draw a line, the ruler needs to be pressed by hands to be operated conveniently and is not noticed slightly, and the angle and the position of the ruler can be deviated, the mathematical teaching aid of the utility model is fixed by an adsorption mode, the operation can be completed without pressing by hands, the device is simple and convenient, in addition, the device is provided with a right angle, an operator can draw a right angle conveniently, when the angle needs to be drawn, the marking ruler is moved to the arc-shaped groove of the angle gauge, the marking ruler can rotate on the outer disc of the angle gauge according to the angle and can be rotated to the angle required to draw a line, the convenience and the trouble are saved, if a circle needs to be drawn, a positioning block on the marking ruler is pushed to a designated scale, because the locating piece uses elastic material can fix a position on the marking off chi, can easily draw the circle, the operation of being convenient for.
Description
Technical Field
The utility model belongs to the technical field of the mathematics teaching aid, specifically be a supplementary mathematics teaching aid of drawing.
Background
At present, the teacher uses the ruler multiple, including right angle set square, protractor, ruler etc. at the in-process of imparting knowledge to students, according to the needs of difference, need use different ruler cooperations just can accomplish. When the angle of a certain angle needs to be drawn, the protractor is often required to be operated step by step, which is troublesome, besides, in order to draw a line, the ruler needs to be pressed by hands to be operated conveniently, and the angle and the position of the ruler are deviated slightly.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a supplementary mathematical education ware of drawing, the concrete scheme is as follows: a mathematics teaching aid for assisting drawing comprises a protractor and a marking ruler, wherein the middle part of the protractor is arranged in a hollow way, and a chute is arranged on the protractor; the sliding groove is arranged above the straight edge of the protractor, and a first guide marking groove arranged along the length direction of the sliding groove is arranged in the middle of the sliding groove; one end of the first guide scribing groove is communicated with an auxiliary guide scribing groove arranged on the protractor, and the auxiliary guide scribing groove and the first guide scribing groove are arranged at an angle of 90 degrees; the middle part of the first guide scribing groove is provided with a section of arc-shaped groove extending downwards, and the circle center of the arc-shaped groove is superposed with that of the protractor; the middle part of the marking ruler is provided with a second guide marking groove arranged along the length direction of the marking ruler; the marking ruler is connected with the sliding groove in a sliding mode.
Further, the bottom of protractor is equipped with a plurality of sucking discs.
Still further, the bottom of the protractor is provided with a limiting step arranged along the straight edge of the protractor.
Furthermore, scales are arranged on the arc edge of the protractor, and are all arranged in a concave mode; the middle part of the bottom surface of the marking ruler is provided with a positioning bulge; the protractor is provided with a positioning groove, and when one end of the marking ruler is arranged at the end part of the sliding chute, the positioning protrusion and the positioning groove are matched with each other; when one end of the marking ruler is arranged at the arc-shaped groove and is rotationally connected with the arc-shaped groove, the positioning protrusion of the marking ruler is matched with the scale below the positioning protrusion.
Still further, length scales are arranged on the marking ruler.
Furthermore, a positioning block is arranged on the scribing ruler, a circular through hole is formed in the middle of the set positioning block, and the positioning block is arranged in the second guide scribing groove.
Preferably, the positioning block is made of rubber.
Has the advantages that: mathematics teaching aid, utilize absorbent mode to fix, can accomplish the operation without the hand is pressed, and is simple and convenient, in addition, this device is provided with the right angle, it is more convenient when the operator draws the right angle, when needs drawing angles, move the arc wall department of protractor to the marking off chi, the marking off chi can rotate at the protractor outer disc according to the angle, rotate to needs the angle rule can, conveniently save trouble, if need draw the circle, promote appointed scale department with the locating piece on the marking off chi, because the locating piece uses elastic material can fix a position on the marking off chi, can easily draw the circle, the operation of being convenient for.
Drawings
Fig. 1 is a schematic view of the present invention;
figure 2 is a schematic top view of the protractor;
FIG. 3 is a schematic view of the bottom surface of the protractor;
FIG. 4 is a schematic drawing of a scribe ruler;
FIG. 5 is a bottom view of the rule;
in the figure: 1. a protractor; 2. Marking a ruler; 3. a chute; 4. a first guide marking groove; 5. auxiliary guide marking grooves; 6. an arc-shaped slot; 7. a second guide marking groove; 8. a suction cup; 9. a limiting step; 10. a positioning protrusion; 11. a positioning groove.
Detailed Description
The first embodiment is as follows: a mathematics teaching aid for assisting drawing comprises a protractor 1 and a marking ruler 2; the middle part of the protractor 1 is arranged in a hollow way, and the protractor 1 is provided with a chute 3; the sliding groove 3 is arranged above the straight edge of the protractor 1, and a first guide marking groove 4 arranged along the length direction of the sliding groove 3 is arranged in the middle of the sliding groove 3; one end of the first guide scribing groove 4 is communicated with an auxiliary guide scribing groove 5 arranged on the protractor 1, and the auxiliary guide scribing groove 5 and the first guide scribing groove 4 are arranged at an angle of 90 degrees; the middle part of the first guide scribing groove 4 is provided with a section of arc-shaped groove 6 extending downwards, and the circle center of the arc-shaped groove 6 is superposed with that of the protractor 1; the scribing ruler 2 is a straight ruler, and a second guide scribing groove 7 arranged along the length direction of the scribing ruler 2 is formed in the middle of the scribing ruler; the marking ruler 2 is connected with the sliding groove 3 in a sliding mode.
The second embodiment is as follows: a mathematics teaching aid for assisting drawing comprises a protractor 1 and a marking ruler 2; the bottom of the protractor 1 is provided with a plurality of suckers 8, the middle of the protractor 1 is arranged in a hollow manner, and the protractor 1 is provided with a chute 3; the sliding groove 3 is arranged above the straight edge of the protractor 1, and a first guide marking groove 4 arranged along the length direction of the sliding groove 3 is arranged in the middle of the sliding groove 3; one end of the first guide scribing groove 4 is communicated with an auxiliary guide scribing groove 5 arranged on the protractor 1, and the auxiliary guide scribing groove 5 and the first guide scribing groove 4 are arranged at an angle of 90 degrees; the middle part of the first guide scribing groove 4 is provided with a section of arc-shaped groove 6 extending downwards, and the circle center of the arc-shaped groove 6 is superposed with that of the protractor 1; the scribing ruler 2 is a straight ruler, and a second guide scribing groove 7 arranged along the length direction of the scribing ruler 2 is formed in the middle of the scribing ruler; the marking ruler 2 is connected with the sliding groove 3 in a sliding mode.
The third concrete implementation mode: a mathematics teaching aid for assisting drawing comprises a protractor 1 and a marking ruler 2; the middle part of the protractor 1 is arranged in a hollow way, and the protractor 1 is provided with a chute 3; the sliding groove 3 is arranged above the straight edge of the protractor 1, and a first guide marking groove 4 arranged along the length direction of the sliding groove 3 is arranged in the middle of the sliding groove 3; one end of the first guide scribing groove 4 is communicated with an auxiliary guide scribing groove 5 arranged on the protractor 1, and the auxiliary guide scribing groove 5 and the first guide scribing groove 4 are arranged at an angle of 90 degrees; the middle part of the first guide scribing groove 4 is provided with a section of arc-shaped groove 6 extending downwards, and the circle center of the arc-shaped groove 6 is superposed with that of the protractor 1; the scribing ruler 2 is a straight ruler, and a second guide scribing groove 7 arranged along the length direction of the scribing ruler 2 is formed in the middle of the scribing ruler; the marking ruler 2 is connected with the sliding groove 3 in a sliding mode. Preferably, the bottom end of the protractor 1 is provided with a limit step 9 arranged along a straight edge thereof.
The fourth concrete implementation mode: a mathematics teaching aid for assisting drawing comprises a protractor 1 and a marking ruler 2; the middle part of the protractor 1 is arranged in a hollow way, and the protractor 1 is provided with a chute 3; the sliding groove 3 is arranged above the straight edge of the protractor 1, and a first guide marking groove 4 arranged along the length direction of the sliding groove 3 is arranged in the middle of the sliding groove 3; one end of the first guide scribing groove 4 is communicated with an auxiliary guide scribing groove 5 arranged on the protractor 1, and the auxiliary guide scribing groove 5 and the first guide scribing groove 4 are arranged at an angle of 90 degrees; the middle part of the first guide scribing groove 4 is provided with a section of arc-shaped groove 6 extending downwards, and the circle center of the arc-shaped groove 6 is superposed with that of the protractor 1; the scribing ruler 2 is a straight ruler, and a second guide scribing groove 7 arranged along the length direction of the scribing ruler 2 is formed in the middle of the scribing ruler; the marking ruler 2 is connected with the sliding groove 3 in a sliding mode. The arc edge of the protractor 1 is provided with scales which are all arranged in a concave manner; the middle part of the bottom surface of the marking ruler 2 is provided with a positioning protrusion 10; a positioning groove 11 is arranged on the protractor 1; when one end of the marking ruler 2 is arranged at the end part of the sliding chute 3, the positioning protrusion 10 and the positioning groove 11 are matched with each other; when one end of the marking scale 2 is arranged at the arc-shaped groove 6 and is rotatably connected with the arc-shaped groove, the positioning protrusion 10 of the marking scale is matched with the scale below the positioning protrusion.
The fifth concrete implementation mode: a mathematics teaching aid for assisting drawing comprises a protractor 1 and a marking ruler 2; the marking ruler 2 is provided with length scales; the middle part of the protractor 1 is arranged in a hollow way, and the protractor 1 is provided with a chute 3; the sliding groove 3 is arranged above the straight edge of the protractor 1, and a first guide marking groove 4 arranged along the length direction of the sliding groove 3 is arranged in the middle of the sliding groove 3; one end of the first guide scribing groove 4 is communicated with an auxiliary guide scribing groove 5 arranged on the protractor 1, and the auxiliary guide scribing groove 5 and the first guide scribing groove 4 are arranged at an angle of 90 degrees; the middle part of the first guide scribing groove 4 is provided with a section of arc-shaped groove 6 extending downwards, and the circle center of the arc-shaped groove 6 is superposed with that of the protractor 1; the scribing ruler 2 is a straight ruler, and a second guide scribing groove 7 arranged along the length direction of the scribing ruler 2 is formed in the middle of the scribing ruler; the marking ruler 2 is connected with the sliding groove 3 in a sliding mode.
The sixth specific implementation mode: a mathematics teaching aid for assisting drawing comprises a protractor 1 and a marking ruler 2; the middle part of the protractor 1 is arranged in a hollow way, and the protractor 1 is provided with a chute 3; the sliding groove 3 is arranged above the straight edge of the protractor 1, and a first guide marking groove 4 arranged along the length direction of the sliding groove 3 is arranged in the middle of the sliding groove 3; one end of the first guide scribing groove 4 is communicated with an auxiliary guide scribing groove 5 arranged on the protractor 1, and the auxiliary guide scribing groove 5 and the first guide scribing groove 4 are arranged at an angle of 90 degrees; the middle part of the first guide scribing groove 4 is provided with a section of arc-shaped groove 6 extending downwards, and the circle center of the arc-shaped groove 6 is superposed with that of the protractor 1; the scribing ruler 2 is a straight ruler, and a second guide scribing groove 7 arranged along the length direction of the scribing ruler 2 is formed in the middle of the scribing ruler; the marking ruler 2 is connected with the chute 3 in a sliding way; and a positioning block is arranged on the marking ruler 2, a circular through hole is formed in the middle of the positioning block, and the positioning block is arranged in the second guide marking groove 7.
The seventh embodiment: a mathematics teaching aid for assisting drawing comprises a protractor 1 and a marking ruler 2; the middle part of the protractor 1 is arranged in a hollow way, and the protractor 1 is provided with a chute 3; the sliding groove 3 is arranged above the straight edge of the protractor 1, and a first guide marking groove 4 arranged along the length direction of the sliding groove 3 is arranged in the middle of the sliding groove 3; one end of the first guide scribing groove 4 is communicated with an auxiliary guide scribing groove 5 arranged on the protractor 1, and the auxiliary guide scribing groove 5 and the first guide scribing groove 4 are arranged at an angle of 90 degrees; the middle part of the first guide scribing groove 4 is provided with a section of arc-shaped groove 6 extending downwards, and the circle center of the arc-shaped groove 6 is superposed with that of the protractor 1; the scribing ruler 2 is a straight ruler, and a second guide scribing groove 7 arranged along the length direction of the scribing ruler 2 is formed in the middle of the scribing ruler; the marking ruler 2 is connected with the chute 3 in a sliding way; a positioning block is arranged on the marking ruler 2, a circular through hole is formed in the middle of the positioning block, and the positioning block is arranged in the second guide marking groove 7; the positioning block is made of rubber.
Claims (7)
1. The utility model provides a supplementary mathematical education ware of drawing which characterized in that: the drawing instrument comprises a protractor (1) and a marking ruler (2); the middle part of the protractor (1) is arranged in a hollow way, and a chute (3) is arranged on the protractor (1); the sliding groove (3) is arranged above the straight edge of the protractor (1), and a first guide marking groove (4) arranged along the length direction of the sliding groove (3) is arranged in the middle of the sliding groove; one end of the first guide scribing groove (4) is communicated with an auxiliary guide scribing groove (5) arranged on the protractor (1), and the auxiliary guide scribing groove (5) and the first guide scribing groove (4) are arranged at an angle of 90 degrees; the middle part of the first guide scribing groove (4) is provided with a section of arc-shaped groove (6) extending downwards, and the circle center of the arc-shaped groove (6) is superposed with the circle center of the protractor (1); the scribing ruler (2) is a straight ruler, and a second guide scribing groove (7) arranged along the length direction of the scribing ruler (2) is formed in the middle of the scribing ruler; the marking ruler (2) is connected with the sliding groove (3) in a sliding mode.
2. A drawing-assisting mathematic teaching aid as claimed in claim 1, wherein: the bottom of the protractor (1) is provided with a plurality of suckers (8).
3. A drawing-assisting mathematic teaching aid as claimed in claim 1, wherein: and the bottom end of the protractor (1) is provided with a limiting step (9) arranged along the straight edge of the protractor.
4. A drawing-assisting mathematic teaching aid as claimed in claim 1, wherein: scales are arranged on the arc edge of the protractor (1), and the scales are all arranged in a concave manner; a positioning protrusion (10) is arranged in the middle of the bottom surface of the marking ruler (2); a positioning groove (11) is arranged on the protractor (1); when one end of the marking ruler (2) is arranged at the end part of the sliding chute (3), the positioning protrusion (10) and the positioning groove (11) are matched with each other; when one end of the marking ruler (2) is arranged at the arc-shaped groove (6) and is rotationally connected with the arc-shaped groove, the positioning protrusion (10) of the marking ruler is matched with the scale below the positioning protrusion.
5. A drawing-assisting mathematic teaching aid as claimed in claim 1, wherein: the marking ruler (2) is provided with length scales.
6. A drawing-assisting mathematic teaching aid as claimed in claim 1, wherein: and a positioning block is arranged on the marking ruler (2), a circular through hole is formed in the middle of the set positioning block, and the positioning block is arranged in the second guide marking groove (7).
7. The drawing-assisting mathematic teaching aid of claim 6, wherein: the positioning block is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022808915.9U CN213734344U (en) | 2020-11-30 | 2020-11-30 | Supplementary mathematical teaching aid of drawing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022808915.9U CN213734344U (en) | 2020-11-30 | 2020-11-30 | Supplementary mathematical teaching aid of drawing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213734344U true CN213734344U (en) | 2021-07-20 |
Family
ID=76831163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022808915.9U Expired - Fee Related CN213734344U (en) | 2020-11-30 | 2020-11-30 | Supplementary mathematical teaching aid of drawing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213734344U (en) |
-
2020
- 2020-11-30 CN CN202022808915.9U patent/CN213734344U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210720 |