CN204222481U - Auxiliary teaching aid for mathematical education - Google Patents
Auxiliary teaching aid for mathematical education Download PDFInfo
- Publication number
- CN204222481U CN204222481U CN201420708022.9U CN201420708022U CN204222481U CN 204222481 U CN204222481 U CN 204222481U CN 201420708022 U CN201420708022 U CN 201420708022U CN 204222481 U CN204222481 U CN 204222481U
- Authority
- CN
- China
- Prior art keywords
- ruler
- slide block
- rope
- teaching aid
- protractor
- Prior art date
- 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
Links
- 241000606706 Chione <angiosperm> Species 0.000 claims description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a kind of auxiliary teaching aid for mathematical education, comprise protractor and ruler, protractor is fixedly connected with ruler, it is characterized in that described auxiliary teaching aid for mathematical education also comprises picture round belting, oval arrangement and parabola apparatus, parabola apparatus comprises template bar and guide rod, parabolic type template bar has two and symmetrical about guide rod, and slide block one is fixedly connected on two template bars respectively by the rope of two equal length, and template bar and ruler are hinged and connected; Draw round belting and comprise picture circle chi and slide block two, picture circle chi and slide block two are slidably connected, and slide block two are provided with chalk sleeve one and trip bolt one; Oval arrangement comprises rope and chute, and two positioning sliding blocks are provided with trip bolt two and two positioning sliding blocks are connected by rope.The utility model structure is simple, easy to use, can draw circle, straight line and angle fast accurately, easily draws parabola and ellipse, saves non-drawing time, ensure that drawing quality.
Description
Technical field
The utility model belongs to teaching appliance field, is specifically related to a kind of auxiliary teaching aid for mathematical education.
Background technology
Often need teacher to draw in the teaching of middle school mathematics, what allow student understand is more thorough, common figure be circle, oval and parabola but the drafting of these figures is very time-consuming and effect that is that draw is also not so good, utility is comparatively at random, require great effort again when will carry out replacement cost during mapping, for parabola and ellipse present tool construction more complicated working costs effort.
Utility model content
The purpose of this utility model is to provide a kind of auxiliary teaching aid for mathematical education, and structure is simple, easy to use, can draw circle, straight line and angle fast accurately, easily draws parabola and ellipse, saves non-drawing time, ensure that drawing quality.
The utility model relates to a kind of auxiliary teaching aid for mathematical education, comprise protractor and ruler, protractor is fixedly connected with ruler, it is characterized in that described auxiliary teaching aid for mathematical education also comprises picture round belting, oval arrangement and parabola apparatus, parabola apparatus comprises template bar and guide rod, guide rod upper end is fixedly connected with its lower end and is fixedly connected with ruler with protractor, guide rod is provided with the slide block one that can slide at its outer surface, parabolic type template bar has two and symmetrical about guide rod, slide block one is fixedly connected on two template bars by the rope of two equal length respectively, slide block one is provided with trip bolt three, template bar and ruler are hinged and connected, draw round belting and comprise picture circle chi and slide block two, picture circle chi and slide block two are slidably connected, and slide block two are provided with chalk sleeve one and trip bolt one, draw circle chi one end and are hinged on ruler one end, oval arrangement comprises rope and chute, and chute is arranged on ruler, is provided with two positioning sliding blocks in chute, and two positioning sliding blocks are provided with trip bolt two and two positioning sliding blocks are connected by rope, rope are provided with slidably chalk sleeve two.
The inside of protractor is hollow.
Ruler is provided with handle.
Compared with prior art, the utility model has the advantage of:
Structure is simple, easy to use, can draw circle, straight line and angle fast accurately, easily draws parabola and ellipse, saves non-drawing time, ensure that drawing quality.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1, protractor 2, slide block 1, guide rod 4, template bar 5, chalk sleeve 1, trip bolt 1, picture circle chi 8, picture round belting 9, ruler 10, positioning sliding block 11, rope 12, chute 13, chalk sleeve 2 14, trip bolt 2 15, oval arrangement 16, handle 17, parabola apparatus 18, trip bolt 3 19, slide block two.
Detailed description of the invention
Contrast accompanying drawing below, by the description to optimum embodiment, detailed description of the invention of the present utility model is described in further detail.
A kind of auxiliary teaching aid for mathematical education as shown in Figure 1, comprise protractor 1 and ruler 9, protractor 1 is fixedly connected with ruler 9, it is characterized in that described auxiliary teaching aid for mathematical education also comprises picture round belting 8, oval arrangement 15 and parabola apparatus 17, parabola apparatus 17 comprises template bar 4 and guide rod 3, guide rod 3 upper end is fixedly connected with its lower end with protractor 1 and is fixedly connected with ruler 9, guide rod 3 is provided with the slide block 1 that can slide at its outer surface, parabolic type template bar 4 has two and symmetrical about guide rod 3, slide block 1 is fixedly connected on two template bars 4 by the rope of two equal length respectively, slide block 1 is provided with trip bolt 3 18, template bar 4 and ruler 9 are hinged and connected, draw round belting 8 and comprise picture circle chi 7 and slide block 2 19, draw circle chi 7 and be slidably connected with slide block 2 19, slide block 2 19 is provided with chalk sleeve 1 and trip bolt 1, draw circle chi 1 end and be hinged on ruler 9 one end, oval arrangement 15 comprises rope 11 and chute 12, chute 12 is arranged on ruler 9, be provided with two positioning sliding blocks, 10, two positioning sliding blocks 10 in chute 12 and be provided with trip bolt 2 14 and two positioning sliding blocks 10 are connected by rope 11, rope 11 is provided with slidably chalk sleeve 2 13.
The inside of protractor 1 is hollow.
Ruler 9 is provided with handle 16.
During teaching, straight line and angle can be drawn with this teaching aid, use picture round belting 8 can draw the circle of all size fast and accurately, because parabola apparatus 17 is provided with slide block 1 and template bar 4, easily can draw various parabola fast, draw ellipse be can chalk put into chalk sleeve 2 13 adjustment two positioning sliding blocks 10 distance, draw different ellipses.
In sum, the utility model structure is simple, easy to use, can draw circle, straight line and angle fast accurately, easily draws parabola and ellipse, saves non-drawing time, ensure that drawing quality.
The above is exemplarily described the utility model; obvious the utility model specific implementation is not subject to the restrictions described above; no matter be do any change in its shape or structure; as long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technical scheme is carried out; or design of the present utility model and technical scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.
Claims (3)
1. an auxiliary teaching aid for mathematical education, comprise protractor (1) and ruler (9), protractor (1) is fixedly connected with ruler (9), it is characterized in that described auxiliary teaching aid for mathematical education also comprises picture round belting (8), oval arrangement (15) and parabola apparatus (17), parabola apparatus (17) comprises template bar (4) and guide rod (3), guide rod (3) upper end is fixedly connected with its lower end with protractor (1) and is fixedly connected with ruler (9), guide rod (3) is provided with the slide block one (2) that can slide at its outer surface, parabolic type template bar (4) has two and symmetrical about guide rod (3), slide block one (2) is fixedly connected on two template bars (4) by the rope of two equal length respectively, slide block one (2) is provided with trip bolt three (18), template bar (4) and ruler (9) are hinged and connected, draw round belting (8) and comprise picture circle chi (7) and slide block two (19), draw circle chi (7) to be slidably connected with slide block two (19), slide block two (19) is provided with chalk sleeve one (5) and trip bolt one (6), draws circle chi one (7) end and be hinged on ruler (9) one end, oval arrangement (15) comprises rope (11) and chute (12), chute (12) is arranged on ruler (9), two positioning sliding blocks (10) are provided with in chute (12), two positioning sliding blocks (10) are provided with trip bolt two (14) and two positioning sliding blocks (10) are connected by rope (11), rope (11) are provided with slidably chalk sleeve two (13).
2. auxiliary teaching aid for mathematical education according to claim 1, is characterized in that the inside of protractor (1) is hollow.
3. auxiliary teaching aid for mathematical education according to claim 1, is characterized in that ruler (9) is provided with handle (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420708022.9U CN204222481U (en) | 2014-11-21 | 2014-11-21 | Auxiliary teaching aid for mathematical education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420708022.9U CN204222481U (en) | 2014-11-21 | 2014-11-21 | Auxiliary teaching aid for mathematical education |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204222481U true CN204222481U (en) | 2015-03-25 |
Family
ID=52920611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420708022.9U Expired - Fee Related CN204222481U (en) | 2014-11-21 | 2014-11-21 | Auxiliary teaching aid for mathematical education |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204222481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331221A (en) * | 2017-09-09 | 2017-11-07 | 陈值英 | A kind of classroom tutor auxiliary platform teaching aid |
-
2014
- 2014-11-21 CN CN201420708022.9U patent/CN204222481U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331221A (en) * | 2017-09-09 | 2017-11-07 | 陈值英 | A kind of classroom tutor auxiliary platform teaching aid |
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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: 20150325 Termination date: 20151121 |
|
| EXPY | Termination of patent right or utility model |