CN204215635U - A kind of magnetic field comprehensive demonstration teaching aid - Google Patents
A kind of magnetic field comprehensive demonstration teaching aid Download PDFInfo
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- CN204215635U CN204215635U CN201420706619.XU CN201420706619U CN204215635U CN 204215635 U CN204215635 U CN 204215635U CN 201420706619 U CN201420706619 U CN 201420706619U CN 204215635 U CN204215635 U CN 204215635U
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- needle stand
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- pole
- magnetic
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Abstract
The utility model relates to a kind of classroom instruction instrument, is specifically related to a kind of magnetic field comprehensive demonstration teaching aid.Comprise bearing, a pair toroidal magnet that one is provided with column, toroidal magnet both ends of the surface are respectively N pole and S pole, the endoporus of described a pair toroidal magnet and column clearance fit, top, described column upper end is provided with needle stand, needle stand is vertically installed with vertical pin, described vertical pin is rotatably provided with magnetic pin, and magnetic pin two ends are respectively N pole and S pole.By a pair toroidal magnet is enclosed within the column of bearing, magnet can be demonstrated intuitively there is a natural attraction between the sexes, two like magnetic poles repel each other and magnetic levitation phenomenon; The magnetic pin that described vertical pin is provided with can the existence of illustratively signal magnetic field, reaches the function of magnetic field comprehensive demonstration.
Description
Technical field
The utility model relates to a kind of classroom instruction instrument, is specifically related to a kind of magnetic field comprehensive demonstration teaching aid.
Background technology
The physical characteristics in magnetic field is the emphasis in physics teaching in secondary school always, is that teacher must teach, the knowledge point that student must grasp.Because magnetic normally be cannot see, can not touch, if do not demonstrated intuitively by teaching aid, for the explanation of teacher and the understanding of student with grasp and all bring very large inconvenience.
Summary of the invention
The purpose of this utility model is to overcome deficiency that prior art exists and provides a kind of magnetic field comprehensive demonstration teaching aid for teaching demonstration.
For achieving the above object, the utility model provides following technical scheme: a kind of magnetic field comprehensive demonstration teaching aid, it is characterized in that: comprise bearing, a pair toroidal magnet that one is provided with column, toroidal magnet both ends of the surface are respectively N pole and S pole, the endoporus of described a pair toroidal magnet and column clearance fit, top, described column upper end is provided with needle stand, needle stand is vertically installed with vertical pin, described vertical pin is rotatably provided with magnetic pin, and magnetic pin two ends are respectively N pole and S pole.By a pair toroidal magnet is enclosed within the column of bearing, magnet can be demonstrated intuitively there is a natural attraction between the sexes, two like magnetic poles repel each other and magnetic levitation phenomenon; The magnetic pin that described vertical pin is provided with can the existence of illustratively signal magnetic field, reaches the function of magnetic field comprehensive demonstration.
The utility model is arranged further: described vertical pin is vertically set on needle stand, and described needle stand is removably disposed in column top.Can, needle stand and vertical pin do not take off by the used time, avoid accidentally injuring like this.
Below in conjunction with the accompanying drawings and the specific embodiments the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the utility model specific embodiment 1 surface structure schematic diagram;
Fig. 2 is one of the utility model specific embodiment 1 decomposition texture schematic diagram;
Fig. 3 is the utility model specific embodiment 1 decomposition texture schematic diagram two;
Fig. 4 is one of the utility model specific embodiment 2 decomposition texture schematic diagram;
Fig. 5 is the utility model specific embodiment 2 decomposition texture schematic diagram two.
Embodiment
Specific embodiment 1: as shown in Figure 1, magnetic field comprehensive demonstration teaching aid comprises bearing, a pair toroidal magnet 4 that is provided with column 1, bearing can also be provided with a chassis 2, column 1 is vertically fixed on chassis 2, column 1 can be cylindrical, the endoporus of described a pair toroidal magnet 4 and column 1 clearance fit, two end faces of toroidal magnet 4 are respectively N pole and S pole.Top, described column 1 upper end is provided with needle stand 3, needle stand 3 is vertically installed with vertical pin 5, described vertical pin 5 is rotatably provided with magnetic pin 6, magnetic pin 6 two ends are respectively N pole and S pole, magnetic pin 6 centre of gravity place is provided with pit and vertical pin 5 tip matches, and magnetic pin 6 can be withstood on vertical pin 5 tip and rotate freely.
As shown in Figure 2,3, in order to be taken off by vertical pin 5 when not using, avoid vertical pin 5 couples of people to cause accidental injury, described needle stand 3 preferably and column 1 split arrange, described needle stand 3 is removably disposed in column 1 top.Described column 1 and needle stand 3 can be cylindrical, described column 1 is provided with circular pit 101 for hollow tube or top, described needle stand 3 bottom face is provided with the boss 301 with described column 1 endoporus or circular pit 101 clearance fit, and described needle stand 3 coordinates to form with column 1 endoporus or circular pit 101 by boss 301 and releasably arranges.
Specific embodiment 2: as shown in Figure 4,5, in order to reduce consumptive material, described column 1 and needle stand 3 cross section also can be " ten " word or " Y " font, described needle stand 3 bottom face is provided with and " ten " word of described column 1 cross section clearance fit or " Y " font groove 302, described needle stand 3 coordinates to form with column 1 by " ten " word or " Y " font groove 302 and releasably arranges, can consumptive material be reduced like this, reduce costs.
Claims (4)
1. a magnetic field comprehensive demonstration teaching aid, it is characterized in that: comprise bearing, a pair toroidal magnet that one is provided with column, toroidal magnet both ends of the surface are respectively N pole and S pole, the endoporus of described a pair toroidal magnet and column clearance fit, top, described column upper end is provided with needle stand, needle stand is vertically installed with vertical pin, described vertical pin is rotatably provided with magnetic pin, magnetic pin two ends are respectively N pole and S pole.
2. magnetic field comprehensive demonstration teaching aid according to claim 1, is characterized in that: described needle stand and column split are arranged, and described needle stand is removably disposed in column top.
3. magnetic field comprehensive demonstration teaching aid according to claim 2, it is characterized in that: described column and needle stand can be cylindrical, described column is that hollow tube or top are provided with circular pit, described needle stand bottom face is provided with the boss with described column endoporus or circular pit clearance fit, and described needle stand coordinates to form with column endoporus or circular pit by boss and releasably arranges.
4. magnetic field comprehensive demonstration teaching aid according to claim 2, it is characterized in that: described column and needle stand cross section also can be " ten " word or " Y " font, described needle stand bottom face is provided with and " ten " word of described column cross section clearance fit or " Y " font groove, and described needle stand coordinates with column to form by " ten " word or " Y " font groove and releasably arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420706619.XU CN204215635U (en) | 2014-11-21 | 2014-11-21 | A kind of magnetic field comprehensive demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420706619.XU CN204215635U (en) | 2014-11-21 | 2014-11-21 | A kind of magnetic field comprehensive demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204215635U true CN204215635U (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420706619.XU Active CN204215635U (en) | 2014-11-21 | 2014-11-21 | A kind of magnetic field comprehensive demonstration teaching aid |
Country Status (1)
| Country | Link |
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| CN (1) | CN204215635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108182856A (en) * | 2018-03-07 | 2018-06-19 | 刘谏哲 | A kind of multi-faceted pole change demonstration teaching aid |
-
2014
- 2014-11-21 CN CN201420706619.XU patent/CN204215635U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108182856A (en) * | 2018-03-07 | 2018-06-19 | 刘谏哲 | A kind of multi-faceted pole change demonstration teaching aid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |