CN204712732U - Mathematical education curve drawing instrument for drawing conic section device - Google Patents
Mathematical education curve drawing instrument for drawing conic section device Download PDFInfo
- Publication number
- CN204712732U CN204712732U CN201520424695.6U CN201520424695U CN204712732U CN 204712732 U CN204712732 U CN 204712732U CN 201520424695 U CN201520424695 U CN 201520424695U CN 204712732 U CN204712732 U CN 204712732U
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- China
- Prior art keywords
- slide block
- translot
- pod
- conic section
- mathematical education
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Abstract
The utility model discloses a kind of mathematical education curve drawing instrument for drawing conic section device, comprise cross bar mutually vertical and arranged in a crossed manner and vertical pole, the top of described cross bar caves inward and is formed with translot (11), the top of described vertical pole caves inward and is formed with pod (12), described translot (11) is symmetrical about the length direction of described pod (12), and described pod (12) is symmetrical about the length direction of described translot (11); Be provided with the first slide block (2) in described pod (12), be provided with the second slide block (3) in described translot (11), the length of described pod (12) is less than the length of described translot (11); Wherein, the top of dwang (8) is fixed on described first slide block (2), and middle part is fixed on described second slide block (3), and the below of end is provided with holder (4).This mathematical education curve drawing instrument for drawing conic section device assisted teacher can draw standard conic section attractive in appearance efficiently and easily on blackboard or blank.
Description
Technical field
The utility model relates to teaching aid, particularly, relates to a kind of mathematical education curve drawing instrument for drawing conic section device.
Background technology
Often need to draw conic section in teaching and drawing, and teacher needs to carry out the demonstration of conic section on blackboard or blank often giving lessons.Existing method is fixed on blackboard or blank at the two ends of a rope, then conflict chalk or white board marker in the side of rope and tighten this rope, finally holds chalk or white board marker carries out circumference mapping.Use this mapping mode often because the fixing point skew of rope makes the center of conic section change to cause mapping unsuccessfully; Or because rope degree of tautness difference causes the nib of chalk or white board marker to make the shape of conic section lack of standardization towards generation skew, aesthetic feeling is lost in mapping.
Therefore need to provide a kind of teaching aid can drawing conic section quickly and easily on blackboard or blank.
Utility model content
The purpose of this utility model is to provide a kind of mathematical education curve drawing instrument for drawing conic section device, and this mathematical education curve drawing instrument for drawing conic section device assisted teacher can draw standard conic section attractive in appearance efficiently and easily on blackboard or blank.
To achieve these goals, the utility model provides a kind of mathematical education curve drawing instrument for drawing conic section device, comprise cross bar mutually vertical and arranged in a crossed manner and vertical pole, the top of cross bar caves inward and is formed with translot, the top of vertical pole caves inward and is formed with pod, translot is symmetrical about the length direction of pod, and pod is symmetrical about the length direction of translot; Be provided with the first slide block in pod, be provided with the second slide block in translot, the length of pod is less than the length of translot; Wherein, the top of dwang is fixed on the first slide block, and middle part is fixed on the second slide block, and the below of end is provided with holder.
Preferably, the end of pod and/or translot is provided with the locating part upwards extended.
Preferably, cross bar and/or vertical pole are expansion link.
Preferably, dwang is alongst provided with multiple installing hole and locating hole; Wherein, fixture penetrating mounting holes can extend to the first slide block and/or the second slide block, keeper can run through locating hole with holder Joint.
Preferably, dwang is expansion link.
Preferably, holder comprises two arc clips be oppositely arranged, and the top of two arc clips is mutually affixed and be fixed in locating hole by keeper, the other end to downward-extension to make to be formed with holding tank between two arc clips.
Preferably, the bottom of cross bar and/or vertical pole is provided with sucker.
According to technique scheme, the utility model is mutually vertical and arranged in a crossed manner with vertical pole by cross bar, forms translot and pod respectively at the top of cross bar and vertical pole, and the two is symmetrical about crossover location; Establish the first slide block in pod, establish the second slide block in translot, be fixed at the top of dwang on the first slide block, middle part is fixed on the second slide block, and the below of end is provided with holder, the chalk used when holder clamps mapping or white board marker.The length of pod is set to the length being less than translot, now hold chalk or white board marker rotation mapping, dwang and the first slide block, the second slide block link, first slide block slides along pod, the second slide block slides along translot, now the length of pod forms oval minor axis, the length of translot forms oval major axis, and the vestige that chalk or white board marker stay after dwang rotates a circle is a complete ellipse.When the first slide block or the second slide block being fixed on the crossover location of translot and pod, now rotating dwang again and can draw a circle once enclosing.In sum, use this mathematical education curve drawing instrument for drawing conic section device can draw multiple conic section efficiently and easily, improve the classroom teaching effect of teacher.
Other feature and advantage of the present utility model are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for description, is used from explanation the utility model, but does not form restriction of the present utility model with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the structural representation according to the mathematical education curve drawing instrument for drawing conic section device in preferred embodiment of the present utility model.
Description of reference numerals
11-translot 12-pod
2-first slide block 3-second slide block
4-holder 5-fixture
6-locating part 7-sucker
8-dwang 9-locating hole
10-installing hole
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
In the utility model, when not doing contrary explanation, the nouns of locality be included in term such as " upper and lower, inside and outside " only represents the orientation of this term under normal service condition, or being commonly called as those skilled in the art's understanding, and should not be considered as the restriction to this term.
See Fig. 1, the utility model provides a kind of mathematical education curve drawing instrument for drawing conic section device, comprise cross bar mutually vertical and arranged in a crossed manner and vertical pole, the top of cross bar caves inward and is formed with translot 11, the top of vertical pole caves inward and is formed with pod 12, translot 11 is symmetrical about the length direction of pod 12, and pod 12 is symmetrical about the length direction of translot 11; Be provided with the first slide block 2 in pod 12, be provided with the second slide block 3 in translot 11, the length of pod 12 is less than the length of translot 11; Wherein, the top of dwang 8 is fixed on the first slide block 2, and middle part is fixed on the second slide block 3, and the below of end is provided with holder 4.
By technique scheme, cross bar is mutually vertical and arranged in a crossed manner with vertical pole, form translot 11 and pod 12 respectively at the top of cross bar and vertical pole, the two is symmetrical about crossover location; Establish the first slide block 2 in pod 12, establish the second slide block 3 in translot 11, be fixed at the top of dwang 8 on first slide block 2, middle part is fixed on the second slide block 3, and the below of end is provided with holder 4, the chalk used when holder 4 clamps mapping or white board marker.The length of pod 12 is set to the length being less than translot 11, now hold chalk or white board marker rotation mapping, dwang 8 and the first slide block 2, second slide block 3 link, first slide block 2 slides along pod 12, the second slide block 3 slides along translot 11, now the length of pod 12 forms oval minor axis, the length of translot 11 forms oval major axis, and the vestige that chalk or white board marker stay after dwang 8 rotates a circle is a complete ellipse.When the first slide block 2 or the second slide block 3 being fixed on the crossover location of translot 11 with pod 12, now rotating dwang 8 again and can draw a circle once circle.In sum, use this mathematical education curve drawing instrument for drawing conic section device can draw multiple conic section efficiently and easily, improve the classroom teaching effect of teacher.
Slide along pod 12 at above-mentioned first slide block 2, in process that the second slide block 3 slides along translot 11, sliding stroke is exceeded in order to prevent the first slide block 2 or the second slide block 3, slippage in cell body, dwang 8 is caused to depart from original rotary motion trace, draw the conic section of distortion, preferably, the end of pod 12 and/or translot 11 is provided with the locating part 6 upwards extended.Like this, locating part 6 can limit the sliding stroke of the first slide block 2 or the second slide block 3, avoids above-mentioned situation to occur.
In present embodiment, the needs difference according to teachers ' teaching usually needs ellipse or the circle of drawing different size, and the length for the ease of adjustment cross bar or vertical pole changes oval long axis length and minor axis length, and preferred cross bar and/or vertical pole are expansion link.
In addition, when using mathematical education to map with curve drawing instrument for drawing conic section device, distance between first slide block 2 and the second slide block 3 and the relative position of holder 4 on dwang 8 all can have an impact to the size of the ellipse charted out or circle, in order to the conic section of difformity and size can be drawn out, preferably, dwang 8 is alongst provided with multiple installing hole 10 and locating hole 9; Wherein, fixture 5 penetrating mounting holes 10 can extend to the first slide block 2 and/or the second slide block 3, keeper can run through locating hole 9 with holder 4 Joint.For expanding the drawing area of this mathematical education curve drawing instrument for drawing conic section device further, facilitating teacher to rotate dwang 8 and drawing, preferred dwang 8 is expansion link.
In present embodiment, in order to above-mentioned holder 4 can clamp different types of drawing pen (as chalk, white board marker) and the different pen of thickness, preferred holder 4 comprises two arc clips be oppositely arranged, the top of two arc clips is mutually affixed and be fixed in locating hole 9 by keeper, the other end to downward-extension to make to be formed with holding tank between two arc clips.Such installation and change drawing pen just very convenient, only keeper need be unclamped, by drawing pen from holding tank through and after the distance adjusted nib and drawing board and angle, then by keeper, holder 4 is firmly locked drawing pen and just effectively can prevent the crooked conic section contour distortion causing drawing of drawing pen in mapping process.
Similarly, during in order to prevent rotary motion bar 8, the center of circle of conic section is owing to skidding and changing in cross bar or the contact site between vertical pole and drawing board, and the conic section distortion that drawing pen is drawn, the bottom of preferred cross bar and/or vertical pole is provided with sucker 7.Be adsorbed on drawing board by sucker 7 like this and just cross bar and the contact site between vertical pole and drawing board can be fixed, even if the excessive center of circle of painted conic section that also can not make of dwang 8 rotation amplitude offsets.
Below preferred embodiment of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible combination.
In addition, also can be combined between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (7)
1. a mathematical education curve drawing instrument for drawing conic section device, it is characterized in that, comprise cross bar mutually vertical and arranged in a crossed manner and vertical pole, the top of described cross bar caves inward and is formed with translot (11), the top of described vertical pole caves inward and is formed with pod (12), described translot (11) is symmetrical about the length direction of described pod (12), and described pod (12) is symmetrical about the length direction of described translot (11); Be provided with the first slide block (2) in described pod (12), be provided with the second slide block (3) in described translot (11), the length of described pod (12) is less than the length of described translot (11); Wherein, the top of dwang (8) is fixed on described first slide block (2), and middle part is fixed on described second slide block (3), and the below of end is provided with holder (4).
2. mathematical education curve drawing instrument for drawing conic section device according to claim 1, is characterized in that, the end of described pod (12) and/or translot (11) is provided with the locating part (6) upwards extended.
3. mathematical education curve drawing instrument for drawing conic section device according to claim 1, is characterized in that, described cross bar and/or vertical pole are expansion link.
4. according to the curve drawing instrument for drawing conic section device of the mathematical education in claim 1-3 described in any one, it is characterized in that, described dwang (8) is alongst provided with multiple installing hole (10) and locating hole (9); Wherein, fixture (5) can run through described installing hole (10) and extend to described first slide block (2) and/or the second slide block (3), keeper can run through described locating hole (9) with described holder (4) Joint.
5. mathematical education curve drawing instrument for drawing conic section device according to claim 4, is characterized in that, described dwang (8) is expansion link.
6. mathematical education curve drawing instrument for drawing conic section device according to claim 4, it is characterized in that, described holder (4) comprises two arc clips be oppositely arranged, the top of described two arc clips is mutually affixed and be fixed in described locating hole (9) by keeper, the other end to downward-extension to make to be formed with holding tank between described two arc clips.
7. according to the curve drawing instrument for drawing conic section device of the mathematical education in claim 1-3 described in any one, it is characterized in that, the bottom of described cross bar and/or vertical pole is provided with sucker (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520424695.6U CN204712732U (en) | 2015-06-18 | 2015-06-18 | Mathematical education curve drawing instrument for drawing conic section device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520424695.6U CN204712732U (en) | 2015-06-18 | 2015-06-18 | Mathematical education curve drawing instrument for drawing conic section device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204712732U true CN204712732U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520424695.6U Expired - Fee Related CN204712732U (en) | 2015-06-18 | 2015-06-18 | Mathematical education curve drawing instrument for drawing conic section device |
Country Status (1)
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| CN (1) | CN204712732U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957427A (en) * | 2016-07-08 | 2016-09-21 | 郭秀刚 | Mathematical teaching plotter |
| CN109263373A (en) * | 2018-09-19 | 2019-01-25 | 曹玲玮 | A kind of structural apparatus and its application method |
| CN109631866A (en) * | 2019-02-20 | 2019-04-16 | 中国建筑第八工程局有限公司 | Oval moulding setting-out equipment and its application method |
| CN110465704A (en) * | 2019-08-22 | 2019-11-19 | 中船黄埔文冲船舶有限公司 | A kind of generally applicable hull elliptical aperture hole making drill |
| CN112056665A (en) * | 2020-08-24 | 2020-12-11 | 太仓繁晟电子科技有限公司 | A supplementary marking device for cloth |
| CN114083927A (en) * | 2021-11-15 | 2022-02-25 | 哈尔滨学院 | Mathematical teaching auxiliary device and operation method |
-
2015
- 2015-06-18 CN CN201520424695.6U patent/CN204712732U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957427A (en) * | 2016-07-08 | 2016-09-21 | 郭秀刚 | Mathematical teaching plotter |
| CN105957427B (en) * | 2016-07-08 | 2018-11-09 | 潍坊科技学院 | A kind of mathematical education plotter |
| CN109263373A (en) * | 2018-09-19 | 2019-01-25 | 曹玲玮 | A kind of structural apparatus and its application method |
| CN109631866A (en) * | 2019-02-20 | 2019-04-16 | 中国建筑第八工程局有限公司 | Oval moulding setting-out equipment and its application method |
| CN110465704A (en) * | 2019-08-22 | 2019-11-19 | 中船黄埔文冲船舶有限公司 | A kind of generally applicable hull elliptical aperture hole making drill |
| CN112056665A (en) * | 2020-08-24 | 2020-12-11 | 太仓繁晟电子科技有限公司 | A supplementary marking device for cloth |
| CN114083927A (en) * | 2021-11-15 | 2022-02-25 | 哈尔滨学院 | Mathematical teaching auxiliary device and operation method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160618 |