CN203490868U - Demonstration teaching aid for function limit of advanced mathematics - Google Patents
Demonstration teaching aid for function limit of advanced mathematics Download PDFInfo
- Publication number
- CN203490868U CN203490868U CN201320664060.4U CN201320664060U CN203490868U CN 203490868 U CN203490868 U CN 203490868U CN 201320664060 U CN201320664060 U CN 201320664060U CN 203490868 U CN203490868 U CN 203490868U
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- teaching aid
- demonstration teaching
- magnetic sheet
- magnetic
- magnetic plate
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- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a demonstration teaching aid for a function limit of advanced mathematics, and relates to the technical field of teaching aids for advanced mathematics. The lower end of a magnetic plate is provided with a rotating disc, the lower end of the rotating disc is provided with a supporting rod, the lower end of the supporting rod is provided with a supporting support, the magnetic plate is provided with a coordinate table, a magnetic disc, a wire pulling mechanism and the magnetic plate are pulled in to form a function image, the upper end of the magnetic plate is connected with a cover plate, the cover plate is provided with a storing groove, the upper end and the lower end of the magnetic plate are both provided with slide rails, and two ends of the slide rails are provided with pulling plates. The demonstration teaching aid for the function limit of the advanced mathematics is advantaged by convenient usage, simple operation, accurate and rapid expression, saved drawing time, and simple structure.
Description
Technical field:
The utility model relates to a kind of higher mathematics limit of function demonstration teaching aid, belongs to higher mathematics teaching aid technical field.
Background technology:
In Higher Mathematics Teaching, graphing on blackboard, it is pressed for time and not too accurate, draws and affect study schedule and quality of instruction hurriedly, is also difficult to accurate expression, sometimes even affects and solves; Existing higher mathematics limit of function demonstration teaching aid extremely bothers when drawing functional image, loses time, and is sometimes difficult to express accurately.
Utility model content:
For the problems referred to above, the technical problems to be solved in the utility model is to provide a kind of higher mathematics limit of function demonstration teaching aid.
A kind of higher mathematics limit of function demonstration teaching aid of the present utility model, it comprises magnetic sheet, rotating disk, support bar, supporting bracket, coordinates table, magnetic plate, thread drawing mechanism, slide rail, arm-tie, rotating shaft, cover plate, storage trough, the lower end of magnetic sheet is provided with rotating disk, the lower end of rotating disk is provided with support bar, the lower end of support bar is provided with supporting bracket, on magnetic sheet, be provided with coordinates table, magnetic plate, thread drawing mechanism and magnetic sheet adhesive formation function image, the upper end of magnetic sheet is connected with cover plate by rotating shaft, on cover plate, be provided with storage trough, magnetic sheet upper, lower two ends are all provided with slide rail, the two ends of slide rail are all provided with arm-tie.
As preferably, described thread drawing mechanism consists of two take-up reeies and bracing wire, and take-up reel is two ends line-outgoing type.
As preferably, the bottom of described take-up reel is provided with magnet.
As preferably, on described magnetic plate, be provided with bracing wire groove.
The beneficial effects of the utility model are: easy to use, easy and simple to handle, can express accurately and rapidly, and save the drafting time, simple in structure.
Accompanying drawing explanation:
For ease of explanation, the utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of thread drawing mechanism in the utility model.
In figure: 1-magnetic sheet; 2-rotating disk; 3-support bar; 4-supporting bracket; 5-coordinates table; 6-magnetic plate; 7-thread drawing mechanism; 71-take-up reel; 72-bracing wire; 8-slide rail; 9-arm-tie; 10-rotating shaft; 11-cover plate; 12-storage trough.
Embodiment:
For making the purpose of this utility model, technical scheme and advantage more cheer and bright, below by the specific embodiment shown in accompanying drawing, the utility model is described.But should be appreciated that, these descriptions are exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, omitted the description to known configurations and technology, to avoid unnecessarily obscuring concept of the present utility model.
As shown in Figure 1-2, this embodiment is by the following technical solutions: it comprises magnetic sheet 1, rotating disk 2, support bar 3, supporting bracket 4, coordinates table 5, magnetic plate 6, thread drawing mechanism 7, slide rail 8, arm-tie 9, rotating shaft 10, cover plate 11, storage trough 12, the lower end of magnetic sheet 1 is provided with rotating disk 2, the lower end of rotating disk 2 is provided with support bar 3, the lower end of support bar 3 is provided with supporting bracket 4, on magnetic sheet 1, be provided with coordinates table 5, magnetic plate 6, thread drawing mechanism 7 and magnetic sheet 1 adhesive formation function image, the upper end of magnetic sheet 1 is connected with cover plate 11 by rotating shaft 10, on cover plate 11, be provided with storage trough 12, magnetic sheet 1 upper, lower two ends are all provided with slide rail 8, the two ends of slide rail 8 are all provided with arm-tie 9.
Further, described thread drawing mechanism 7 consists of two take-up reeies 71 and bracing wire 72, and take-up reel 71 is two ends line-outgoing type.
Further, the bottom of described take-up reel 71 is provided with magnet.
Further, on described magnetic plate 6, be provided with bracing wire groove.
The principle of work of this embodiment is: by magnetic plate 6 and the thread drawing mechanism 7 incompatible formation function image that matches, easy to operate, save time, when running into, there are minimum value or maximal value remaining part to be covered by arm-tie 9, can very clearly express numerical value, easy to use, easy and simple to handle.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a higher mathematics limit of function demonstration teaching aid, it is characterized in that: it comprises magnetic sheet (1), rotating disk (2), support bar (3), supporting bracket (4), coordinates table (5), magnetic plate (6), thread drawing mechanism (7), slide rail (8), arm-tie (9), rotating shaft (10), cover plate (11), storage trough (12), the lower end of magnetic sheet (1) is provided with rotating disk (2), the lower end of rotating disk (2) is provided with support bar (3), the lower end of support bar (3) is provided with supporting bracket (4), on magnetic sheet (1), be provided with coordinates table (5), magnetic plate (6), thread drawing mechanism (7) and magnetic sheet (1) adhesive formation function image, the upper end of magnetic sheet (1) is connected with cover plate (11) by rotating shaft (10), on cover plate (11), be provided with storage trough (12), magnetic sheet (1) upper, lower two ends are all provided with slide rail (8), the two ends of slide rail (8) are all provided with arm-tie (9).
2. a kind of higher mathematics limit of function demonstration teaching aid according to claim 1, is characterized in that: described thread drawing mechanism (7) consists of two take-up reeies (71) and bracing wire (72), and take-up reel (71) is two ends line-outgoing type.
3. a kind of higher mathematics limit of function demonstration teaching aid according to claim 2, is characterized in that: the bottom of described take-up reel (71) is provided with magnet.
4. a kind of higher mathematics limit of function demonstration teaching aid according to claim 1, is characterized in that: described magnetic plate is provided with bracing wire groove on (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664060.4U CN203490868U (en) | 2013-10-25 | 2013-10-25 | Demonstration teaching aid for function limit of advanced mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664060.4U CN203490868U (en) | 2013-10-25 | 2013-10-25 | Demonstration teaching aid for function limit of advanced mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203490868U true CN203490868U (en) | 2014-03-19 |
Family
ID=50261682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320664060.4U Expired - Fee Related CN203490868U (en) | 2013-10-25 | 2013-10-25 | Demonstration teaching aid for function limit of advanced mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203490868U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105059021A (en) * | 2015-09-01 | 2015-11-18 | 南京工业职业技术学院 | Composite function demonstration and image rendering device |
| CN108909277A (en) * | 2018-07-05 | 2018-11-30 | 李永志 | It is a kind of to deform flexible board for teaching mathematics and its installation method |
-
2013
- 2013-10-25 CN CN201320664060.4U patent/CN203490868U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105059021A (en) * | 2015-09-01 | 2015-11-18 | 南京工业职业技术学院 | Composite function demonstration and image rendering device |
| CN105059021B (en) * | 2015-09-01 | 2016-11-30 | 南京工业职业技术学院 | Compound function demonstration and image plotting device |
| CN108909277A (en) * | 2018-07-05 | 2018-11-30 | 李永志 | It is a kind of to deform flexible board for teaching mathematics and its installation method |
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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: 20140319 Termination date: 20151025 |
|
| EXPY | Termination of patent right or utility model |