CN204390554U - A kind of geometry teaching aid - Google Patents
A kind of geometry teaching aid Download PDFInfo
- Publication number
- CN204390554U CN204390554U CN201420867494.9U CN201420867494U CN204390554U CN 204390554 U CN204390554 U CN 204390554U CN 201420867494 U CN201420867494 U CN 201420867494U CN 204390554 U CN204390554 U CN 204390554U
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- China
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- pieces
- cross bar
- magnetic
- support bars
- blackboard
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Abstract
The utility model proposes a kind of geometry teaching aid, comprise blackboard, two support bars, two pieces of pistons, two bearings, two L shape bars, cross bar, some pieces of magnetic picture puzzles and magnetic sheets.Two support bars are horizontal positioned, two support bars are all provided with an opening guide-track groove and several backstays, and two pieces of pistons are separately positioned in two opening guide-track grooves.Cross bar one end is fixed on one piece of piston, and the cross bar other end is fixed on another block piston.Each root L shape bar is parallel to cross bar one end to be connected with a bearing side through an opening guide-track groove, bearing opposite side is connected with a piston.Perpendicular to cross bar one end being provided with the buckle engaged with backstay on each root L shape bar.The coboundary of blackboard is suspended on cross bar, and magnetic sheet two ends are separately fixed on two support bars, and some pieces of magnetic picture puzzles are adsorbed on magnetic sheet surface.The utility model has the advantage of: structure is simple, easy to use, by the explanation of knowledge point and geometric demonstration unification mutually.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly relates to a kind of geometry teaching aid.
Background technology
Teacher, in professor's geometry class hour, in order to set forth the knowledge point that will authorize more intuitively to students, needs the geometry plate carrying various shape to demonstrate usually.Teacher completes geometric figure presentation process by being fixed on blackboard by geometry plate with hand.But this having some limitations property of geometry plate, teacher can only demonstrate simple geometric figure with this geometry plate usually, for the geometric figure of some complexity, is just not easy demonstration with this geometry plate.At present, the scheme addressed this is that is to provide a kind of magnetic devices demonstration geometric figure, if patent documentation bulletin is the magnetic adjustable picture-arranging board of CN2367355Y.But this kind of magnetic devices can only demonstrate geometric figure separately, the effect that geometric figure explanation is carried out in contrast knowledge point but can not be reached.
Utility model content
According to this defect of current techniques, it is simple, easy to use that the utility model aims to provide a kind of structure, conserve space, can carry out the demonstration of complex geometry, by geometry teaching aid mutually unified to the explanation of knowledge point and geometric demonstration.
The utility model solves the problems of the technologies described above by the following technical solutions: a kind of geometry teaching aid, comprises support, blackboard, magnetic jigsaw puzzles device.Described support comprises two support bars, two pieces of pistons, two bearings, two L shape bars and cross bars.Described two support bars are horizontal positioned, described two support bars are all provided with an opening guide-track groove and several backstays, one end of described some backstays is all fixed on the support bar corresponding with it, and the other end of described some backstays all can engage with described L shape bar.Described two pieces of pistons are separately positioned in two described opening guide-track grooves.The two ends of described cross bar are separately fixed at the side of two pieces of described pistons, and the opposite side of two pieces of described pistons arranges two described bearings respectively.When the fixing described blackboard of needs, one end that each root L shape bar is parallel to described cross bar is arranged in two described bearings respectively, each root L shape bar one end perpendicular to described cross bar is rotated towards the direction of described backstay respectively, and is fastened on the described backstay nearest apart from described L shape bar.When needs move up and down described blackboard, each root L shape bar is all taken out from described cross bar, by mobile described cross bar, realize the motion of described blackboard.The coboundary of described blackboard is suspended on described cross bar.Described magnetic jigsaw puzzles device comprises some pieces of magnetic picture puzzles and magnetic sheet, and the two ends of described magnetic sheet are separately fixed on described two support bars, and described some pieces of magnetic picture puzzles are adsorbed on described magnetic sheet surface.
Preferably: the quantity of several backstays on described two support bars is equal.
Preferably: the position of described two support bars is in horizontal corresponding relation one by one.
Preferably: described some pieces of magnetic jigsaw puzzles plate thickness are equal.
Preferably: described some pieces of magnetic picture puzzles are different.
First the utility model by describing the concept of the geometric knowledge point that will teach on blackboard, then mobile blackboard, is staggered in the position of blackboard and magnetic sheet, again according to the contents selection magnetic picture puzzle of knowledge point, carry out the demonstration of figure again with the magnetic picture puzzle chosen on magnetic sheet surface, reach and explain the object that geometric knowledge point carries out figure demonstrating.Meanwhile, the utility model according to the size of wanted Presentation Graphics, can select the degree that blackboard and magnetic sheet stagger.
The utility model has the advantage of: structure is simple, and easy to use, conserve space, can carry out the demonstration of complex geometry, by the explanation of knowledge point and geometric demonstration unification mutually, mainly applies to the application of geometry teaching aid.
Accompanying drawing explanation
Fig. 1 is the structural drawing of a kind of geometry teaching aid of the utility model.
Fig. 2 is the local structural graph of geometry teaching aid in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in Figure 1-2, the utility model embodiment provides a kind of geometry teaching aid, comprises support 1, blackboard 2 and magnetic jigsaw puzzles device 3.Described support 1 comprises two support bars, 11, two pieces of pistons, 12, two bearings, 13, two L shape bars 14 and cross bar 15.Described two support bars 11 are in horizontal positioned, and described two support bars 11 are all provided with an opening guide-track groove 111 and several backstays 112, and described two pieces of pistons 12 are separately positioned in two described opening guide-track grooves 111.One end of described cross bar 15 is fixed on a piston 12, and the other end is fixed on another piston 12.The one end each root L shape bar 14 being parallel to cross bar 11 is connected with the side of bearing 13 through an opening guide-track groove 111, and the opposite side of bearing 13 is connected with piston 12.One end perpendicular to cross bar 15 on each root L shape bar 14 is provided with buckle 16, and described one end perpendicular to cross bar 15 is engaged with backstay 112 by buckle 16.The coboundary of described blackboard 2 is suspended on cross bar 15.Described magnetic jigsaw puzzles device 3 comprises some pieces of magnetic picture puzzles 31 and magnetic sheet 32.The two ends decibel of described magnetic sheet 32 is fixed on two support bars 11, and described some pieces of magnetic picture puzzles 31 are adsorbed on magnetic sheet 32 surface.
The utility model embodiment by describing out the content of the geometric knowledge point that will explain on blackboard 2, then this geometric figure required for geometric knowledge point is determined, analyze the space size of demonstration needed for this geometric figure again, one end L shape bar 14 being parallel to cross bar 15 is taken out from bearing 13, then by cross bar 15 upwards or move downward blackboard 2 and magnetic sheet 32 are staggered.When blackboard 2 demonstrates requisite space with the degree staggered of magnetic sheet 32 is satisfied, one end that L shape bar 14 is parallel to cross bar 15 is arranged in bearing 13, L shape bar 14 one end perpendicular to cross bar 15 is rotated towards the direction of backstay 14, and be fastened on the nearest backstay 112 of distance L shape bar 14, then need to choose magnetic picture puzzle 31 according to demonstration, carry out geometric figure demonstration with the magnetic picture puzzle 31 chosen on magnetic sheet 32 surface, realize explanation and the geometric demonstration unification mutually of geometric knowledge point.
The foregoing is only the preferred embodiment that the utility model is created; do not create in order to limit the utility model; the any amendment done within all spirit of creating at the utility model and principle, equivalent to replace and improvement etc., all should be included within protection domain that the utility model creates.
Claims (5)
1. a geometry teaching aid, is characterized in that: comprise support, blackboard, magnetic jigsaw puzzles device; Described support comprises two support bars, two pieces of pistons, two bearings, two L shape bars and cross bars; Described two support bars are horizontal positioned, described two support bars are all provided with an opening guide-track groove and several backstays, one end of described some backstays is all fixed on the support bar corresponding with it, and the other end of described some backstays all can engage with described L shape bar; Described two pieces of pistons are separately positioned in two described opening guide-track grooves; The two ends of described cross bar are separately fixed at the side of two pieces of described pistons, and the opposite side of two pieces of described pistons arranges two described bearings respectively; When the fixing described blackboard of needs, one end that each root L shape bar is parallel to described cross bar is arranged in two described bearings respectively, each root L shape bar one end perpendicular to described cross bar is rotated towards the direction of described backstay respectively, and is fastened on the described backstay nearest apart from described L shape bar; When needs move up and down described blackboard, each root L shape bar is all taken out from described cross bar, by mobile described cross bar, realize the motion of described blackboard; The coboundary of described blackboard is suspended on described cross bar; Described magnetic jigsaw puzzles device comprises some pieces of magnetic picture puzzles and magnetic sheet, and the two ends of described magnetic sheet are separately fixed on described two support bars, and described some pieces of magnetic picture puzzles are adsorbed on described magnetic sheet surface.
2. a kind of geometry teaching aid according to claim 1, is characterized in that: the quantity of several backstays on described two support bars is equal.
3. a kind of geometry teaching aid according to claim 1, is characterized in that: the position of described two support bars is in horizontal corresponding relation one by one.
4. a kind of geometry teaching aid according to claim 1, is characterized in that: described some pieces of magnetic jigsaw puzzles plate thickness are equal.
5. a kind of geometry teaching aid according to claim 1, is characterized in that: described some pieces of magnetic picture puzzles are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420867494.9U CN204390554U (en) | 2014-12-31 | 2014-12-31 | A kind of geometry teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420867494.9U CN204390554U (en) | 2014-12-31 | 2014-12-31 | A kind of geometry teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204390554U true CN204390554U (en) | 2015-06-10 |
Family
ID=53363255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420867494.9U Expired - Fee Related CN204390554U (en) | 2014-12-31 | 2014-12-31 | A kind of geometry teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204390554U (en) |
-
2014
- 2014-12-31 CN CN201420867494.9U patent/CN204390554U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Zhenglin Inventor before: Xiang Yang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: XIANG YANG TO: ZHANG ZHENGLIN |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |