CN204382982U - A kind of instrument being convenient to mathematical education - Google Patents
A kind of instrument being convenient to mathematical education Download PDFInfo
- Publication number
- CN204382982U CN204382982U CN201520067286.5U CN201520067286U CN204382982U CN 204382982 U CN204382982 U CN 204382982U CN 201520067286 U CN201520067286 U CN 201520067286U CN 204382982 U CN204382982 U CN 204382982U
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- CN
- China
- Prior art keywords
- rule
- center
- circle
- pen core
- aiming axis
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Abstract
The utility model discloses a kind of instrument being convenient to mathematical education, comprise rule, slide block, aiming axis, pen core, center of circle dish, center of circle pin, rotary sleeve, pen core axle sleeve and adsorption layer; The central authorities of rule are provided with chute, and slide block embeds and is arranged in chute, and one end of aiming axis is fixedly connected on slide block, and the end of aiming axis is provided with reservoir hole, and aiming axis is provided with benchmark hollow out; Pen core is inserted in reservoir hole, pen core axle sleeve coaxial sleeve is on pen core, and the lower end of center of circle pin is inserted in the circle centre position of center of circle dish, and the place at zero point of the graduation mark of rule is provided with jack, the upper end of center of circle pin is coaxially inserted in jack by rotary sleeve, and rule is rotated around center of circle pin by rotary sleeve; Center of circle dish is provided with angle index line, and adsorption layer level is laid on the bottom of center of circle dish.The utility model can be used for drawing the geometries such as circle, arc, triangle, angle, ellipse, and volume is little, easy to carry and use, can be used for the mathematical education of geometry.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly relates to a kind of instrument being convenient to mathematical education.
Background technology
Geometry is a subject of outbalance in mathematical studying, the study of geometry from middle school, teach geometric knowledge time, need to explain in conjunction with figure, because geometric figure is varied, the instrument of picture is also a lot, carry and use all very inconvenient, particularly circular and oval drafting.
Utility model content
The purpose of this utility model: provide a kind of instrument being convenient to mathematical education, can draw various geometric figure, be convenient to the teaching of teacher, saves the time of drawing.
To achieve these goals, the technical solution of the utility model is:
Be convenient to an instrument for mathematical education, comprise rule, slide block, aiming axis, pen core, center of circle dish, center of circle pin, rotary sleeve, pen core axle sleeve and adsorption layer; One side of described rule is evenly distributed with graduation mark, the central authorities of described rule are provided with chute, the axis of described chute and the axis of described rule are located along the same line, described slide block embeds and is arranged in described chute, and described slide block moves along described chute; One end of described aiming axis is fixedly connected on described slide block, be positioned at the top of described rule, the other end of described aiming axis extends to the outside of the rule being provided with described graduation mark, the axis of described aiming axis is vertical with the axis of described rule, the end of described aiming axis is provided with reservoir hole, described reservoir hole is positioned at the outside of described rule, described aiming axis is provided with benchmark hollow out, overlaps directly over the graduation mark that described benchmark hollow out is positioned at described rule with described graduation mark; Described pen core is inserted in described reservoir hole, and described pen core axle sleeve coaxial sleeve, on described pen core, is positioned at the below of described aiming axis, and described pen core is flexibly connected with described aiming axis by described pen core axle sleeve; The lower end of described center of circle pin is inserted in the circle centre position of described center of circle dish, described center of circle pin coils vertical with the described center of circle, the place at zero point of the graduation mark of described rule is provided with jack, the upper end of described center of circle pin is coaxially inserted in described jack by described rotary sleeve, and described rule is rotated around described center of circle pin by described rotary sleeve; Described center of circle dish is provided with angle index line, and described adsorption layer level is laid on the bottom of described center of circle dish, and the lower end of described center of circle pin is positioned at the below of described adsorption layer through described adsorption layer.
The above-mentioned instrument being convenient to mathematical education, wherein, described slide block is provided with anti-slip veins, and be positioned at upper surface and the both sides of described slide block, described anti-slip veins is latticed.
The above-mentioned instrument being convenient to mathematical education, wherein, described rule is provided with hook ring, is positioned at the end of described rule.
The above-mentioned instrument being convenient to mathematical education, wherein, one side of described rule is connected with focus rope, and one end of described focus rope is connected on described aiming axis, and the other end of described focus rope is arranged on the place at zero point of the graduation mark of described rule by regulating part.
The utility model can be used for drawing the geometries such as circle, arc, triangle, angle, ellipse, and volume is little, easy to carry and use, can be used for the mathematical education of geometry.
Accompanying drawing explanation
Fig. 1 is the front view that the utility model is convenient to the instrument of mathematical education.
Fig. 2 is the A-A ' sectional view that the utility model is convenient to the instrument of mathematical education.
Fig. 3 is the B-B ' sectional view that the utility model is convenient to the instrument of mathematical education.
Detailed description of the invention
Embodiment of the present utility model is further illustrated below in conjunction with accompanying drawing.
Refer to shown in accompanying drawing 1 to accompanying drawing 3, a kind of instrument being convenient to mathematical education, comprise rule 1, slide block 3, aiming axis 4, pen core 7, center of circle dish 8, center of circle pin 9, rotary sleeve 10, pen core axle sleeve 11 and adsorption layer 13; One side of described rule 1 is evenly distributed with graduation mark, the central authorities of described rule are provided with chute 2, the axis of described chute 2 and the axis of described rule 1 are located along the same line, described slide block 3 embeds and is arranged in described chute 2, and described slide block 3 moves along described chute 2; One end of described aiming axis 4 is fixedly connected on described slide block 3, be positioned at the top of described rule 1, the other end of described aiming axis 4 extends to the outside of the rule 1 being provided with described graduation mark, the axis of described aiming axis 4 is vertical with the axis of described rule 1, the end of described aiming axis 4 is provided with reservoir hole 5, described reservoir hole 5 is positioned at the outside of described rule 1, described aiming axis 4 is provided with benchmark hollow out 6, overlaps directly over the graduation mark that described benchmark hollow out 6 is positioned at described rule 1 with described graduation mark; Described pen core 7 is inserted in described reservoir hole 5, and described pen core axle sleeve 11 coaxial sleeve, on described pen core 7, is positioned at the below of described aiming axis 4, and described pen core 7 is flexibly connected with described aiming axis 4 by described pen core axle sleeve 11; The lower end of described center of circle pin 9 is inserted in the circle centre position of described center of circle dish 8, described center of circle pin 9 and the described center of circle are coiled 8 vertical, the place at zero point of the graduation mark of described rule 1 is provided with jack 12, the upper end of described center of circle pin 9 is coaxially inserted in described jack 12 by described rotary sleeve 10, and described rule 1 is rotated around described center of circle pin 9 by described rotary sleeve 10; Described center of circle dish 8 is provided with angle index line 14, and described adsorption layer 13 level is laid on the bottom of described center of circle dish 8, and the lower end of described center of circle pin 9 is positioned at the below of described adsorption layer 13 through described adsorption layer 13.
Described slide block 3 is provided with anti-slip veins 15, is positioned at upper surface and the both sides of described slide block 3, and described anti-slip veins 15, in latticed, is convenient to promote slide block 3, prevents from skidding.
Described rule 1 is provided with hook ring 16, is positioned at the end of described rule 1, is hung up by the utility model by hook ring 16.
One side of described rule 1 is connected with focus rope 17, one end of described focus rope 17 is connected on described aiming axis 4, the other end of described focus rope 17 is arranged on the place at zero point of the graduation mark of described rule 1 by regulating part 18, using the zero point of graduation mark place and aiming axis 4 as two focuses of ellipse, the length of focus rope 17 is the distance sum of oval upper any point to two focuses, can be used for drawing ellipse figure.
The utility model can be used as ruler and uses, when needing to draw circular, the lower end of center of circle pin 9 can be fixed as the center of circle, the position of adjusting slider 3 on chute 2, the position of the graduation mark overlapped with benchmark hollow out 6 is the length of radius, pen core 7 is inserted in reservoir hole 5, promote rule 1 and rotate can draw circle around center of circle pin 9; Simultaneously by the anglec of rotation of angle index line 14 Measurement scales chi 1, be convenient to draw arc, angle, triangle etc.
In sum, the utility model can be used for drawing the geometries such as circle, arc, triangle, angle, ellipse, and volume is little, easy to carry and use, can be used for the mathematical education of geometry.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure transformation utilizing the utility model description to do; or directly or indirectly use the technical field being attached to other Related products, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. be convenient to an instrument for mathematical education, it is characterized in that: comprise rule, slide block, aiming axis, pen core, center of circle dish, center of circle pin, rotary sleeve, pen core axle sleeve and adsorption layer; One side of described rule is evenly distributed with graduation mark, the central authorities of described rule are provided with chute, the axis of described chute and the axis of described rule are located along the same line, described slide block embeds and is arranged in described chute, and described slide block moves along described chute; One end of described aiming axis is fixedly connected on described slide block, be positioned at the top of described rule, the other end of described aiming axis extends to the outside of the rule being provided with described graduation mark, the axis of described aiming axis is vertical with the axis of described rule, the end of described aiming axis is provided with reservoir hole, described reservoir hole is positioned at the outside of described rule, described aiming axis is provided with benchmark hollow out, overlaps directly over the graduation mark that described benchmark hollow out is positioned at described rule with described graduation mark; Described pen core is inserted in described reservoir hole, and described pen core axle sleeve coaxial sleeve, on described pen core, is positioned at the below of described aiming axis, and described pen core is flexibly connected with described aiming axis by described pen core axle sleeve; The lower end of described center of circle pin is inserted in the circle centre position of described center of circle dish, described center of circle pin coils vertical with the described center of circle, the place at zero point of the graduation mark of described rule is provided with jack, the upper end of described center of circle pin is coaxially inserted in described jack by described rotary sleeve, and described rule is rotated around described center of circle pin by described rotary sleeve; Described center of circle dish is provided with angle index line, and described adsorption layer level is laid on the bottom of described center of circle dish, and the lower end of described center of circle pin is positioned at the below of described adsorption layer through described adsorption layer.
2. the instrument being convenient to mathematical education according to claim 1, is characterized in that: described slide block is provided with anti-slip veins, be positioned at upper surface and the both sides of described slide block, described anti-slip veins is latticed.
3. the instrument being convenient to mathematical education according to claim 1, is characterized in that: described rule is provided with hook ring, is positioned at the end of described rule.
4. the instrument being convenient to mathematical education according to claim 1, it is characterized in that: a side of described rule is connected with focus rope, one end of described focus rope is connected on described aiming axis, and the other end of described focus rope is arranged on the place at zero point of the graduation mark of described rule by regulating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520067286.5U CN204382982U (en) | 2015-01-30 | 2015-01-30 | A kind of instrument being convenient to mathematical education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520067286.5U CN204382982U (en) | 2015-01-30 | 2015-01-30 | A kind of instrument being convenient to mathematical education |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204382982U true CN204382982U (en) | 2015-06-10 |
Family
ID=53355731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520067286.5U Expired - Fee Related CN204382982U (en) | 2015-01-30 | 2015-01-30 | A kind of instrument being convenient to mathematical education |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204382982U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105667142A (en) * | 2016-03-11 | 2016-06-15 | 王本 | Multifunctional ruler |
| CN108528109A (en) * | 2018-05-24 | 2018-09-14 | 中国人民解放军空军工程大学 | A kind of circle diagram ruler for drawing Smith circle diagrams |
| CN110379286A (en) * | 2019-07-22 | 2019-10-25 | 焦作师范高等专科学校 | A kind of mechanism kinematic model suitable for teaching |
-
2015
- 2015-01-30 CN CN201520067286.5U patent/CN204382982U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105667142A (en) * | 2016-03-11 | 2016-06-15 | 王本 | Multifunctional ruler |
| CN108528109A (en) * | 2018-05-24 | 2018-09-14 | 中国人民解放军空军工程大学 | A kind of circle diagram ruler for drawing Smith circle diagrams |
| CN108528109B (en) * | 2018-05-24 | 2021-03-23 | 中国人民解放军空军工程大学 | Circle drawing ruler for drawing Smith circle drawing |
| CN110379286A (en) * | 2019-07-22 | 2019-10-25 | 焦作师范高等专科学校 | A kind of mechanism kinematic model suitable for teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20160130 |
|
| EXPY | Termination of patent right or utility model |