CN208284135U - A kind of demonstration teaching aid in earth magnetic field - Google Patents
A kind of demonstration teaching aid in earth magnetic field Download PDFInfo
- Publication number
- CN208284135U CN208284135U CN201721836590.7U CN201721836590U CN208284135U CN 208284135 U CN208284135 U CN 208284135U CN 201721836590 U CN201721836590 U CN 201721836590U CN 208284135 U CN208284135 U CN 208284135U
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- China
- Prior art keywords
- disk
- needle
- magnetic field
- teaching aid
- demonstration teaching
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Abstract
The utility model discloses a kind of demonstration teaching aids in earth magnetic field, the demonstration teaching aid includes disk made of non-magnetic material (1), bar magnet (2) are fixed in the middle part of the disk, the surrounding of disk is distributed multiple Collapsible racks made of non-magnetic material (3), and Collapsible rack is equipped with needle；Collapsible rack (3), which folds, to be placed in the matching recess (4) that disk is equipped with.Demonstration teaching aid structure provided by the utility model is simple, earth magnetic field is modeled to magnet, surrounding magnetic induction line and direction are simulated using small magnetic needle, this analog form lifelike image, it is intuitive, student thought can be edified, make student there is one clearly to recognize in magnetic field.
Description
Technical field
The utility model belongs to the teaching demonstration religion in demonstration teaching aid technical field more particularly to a kind of earth magnetic field
Tool.
Background technique
The concepts such as spatial distribution, north and south magnetic pole, magnetic dip angle, the magnetic declination of the magnetic induction line in earth's magnetic field are physics, Geography
In important knowledge.Since magnetism is usually invisible, impalpable, if not by the demonstration of teaching aid, for teacher's
Explanation and the understanding of student all bring great inconvenience.Therefore, it is necessary to study go out a kind of visual in image demonstration earth magnetic field row
For teaching demonstration tool.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of demonstration teaching aid in earth magnetic field, for being to learn
Raw demonstration earth magnetic field behavior.
The technical solution of the utility model is as follows: a kind of demonstration teaching aid in earth magnetic field, the demonstration teaching aid
Including disk 1 made of non-magnetic material, bar magnet 2 is equipped in the middle part of the disk, the surrounding distribution of disk is multiple by non-magnetic
Property material made of Collapsible rack 3, Collapsible rack be equipped with needle；The folding of Collapsible rack 3 is placed on disk and is equipped with
Matching recess 4 in.
Further, the surrounding of the disk 1 is uniformly distributed 6~12 Collapsible racks 3, sets on each Collapsible rack
There is a needle 5.
Further, the needle 5 is diamond shape needle or wing needle, and diamond shape needle or wing needle are fixed on vacuum suction
It on disk 6 and can rotate freely, vacuum chuck 6 is by vacuum on the smooth Collapsible rack 3 in surface.
Further, 1 behind of disk is equipped with hook 7, can hang on support 8, is convenient for student viewing.
The working principle of the utility model is as follows: the utility model is simulated by earth two dimension and using disk, disk
The fixed bar magnet in middle part simulates earth magnetic field, and the magnetic induction line and direction around earth magnetic field are simulated using small magnetic needle, small magnetic
Needle is diamond shape needle or wing needle, and diamond shape needle or wing needle are fixed on vacuum chuck and can rotate freely, and vacuum is inhaled
Needle on the smooth Collapsible rack in surface, can be fixed on around disk, needle by disk by vacuum when using in this way
It can deflect under the influence of a magnetic field, react earth magnetic field behavior visual in imagely, small magnetic needle can be from bracket after use
Upper taking-up is put in groove after support-folding, avoids damaging, while being also convenient for collecting storage, saves space.
Compared with prior art, the utility model has the following beneficial effects: teaching demonstration provided by the utility model is taught
Lamps structure is simple, earth magnetic field is modeled to magnet, surrounding magnetic induction line and direction are simulated using small magnetic needle, this simulation shape
Formula lifelike image, it is intuitive, student thought can be edified, make student there is one clearly to recognize in magnetic field.
Detailed description of the invention
Fig. 1 is the main view of demonstration teaching aid provided by the utility model；
Fig. 2 is the side view of the demonstration teaching aid；
Marked in the figure: 1- disk, 2- bar magnet, 3- Collapsible rack, 4- groove, 5- needle, 6- vacuum chuck, 7- are hung
Hook, 8- support.
Specific embodiment
The technical solution of the utility model is described in further details combined with specific embodiments below, but the utility model
It is not limited to following technical scheme.
Embodiment 1
As depicted in figs. 1 and 2, the demonstration teaching aid includes disk 1 made of non-magnetic material, in the middle part of the disk
Equipped with bar magnet 2, angle is adjustable, and the length and disk diameter of bar magnet are essentially identical, the north and south magnetic of bar magnet
The surrounding of extremely up north and down south, disk is distributed multiple Collapsible rack 3 made of non-magnetic material, and Collapsible rack is equipped with
Needle；The folding of Collapsible rack 3 is placed in the matching recess 4 that disk is equipped with.The surrounding of the disk 1 is uniformly distributed 6~
12 Collapsible racks 3, each Collapsible rack are equipped with a needle 5.Needle 5 is diamond shape needle or wing needle, diamond shape
Needle or wing needle are fixed on vacuum chuck 6 and can rotate freely, and vacuum chuck 6 is rolled over by vacuum surface is smooth
On folded bracket 3.1 behind of disk is equipped with hook 7, can hang on support 8, is convenient for student viewing.
The demonstration teaching aid use process is as follows: disk 1 is hung on support 8, and folding rack 3 is opened, will
Diamond shape needle or wing needle are adsorbed on refolding bracket 3 by vacuum chuck 6, and finally bar magnet 2 is fixed in disk
Portion, and adjust the angle, under the action of bar magnet 2, the anti-raw deflection of needle, the direction of magnetic induction line is the direction of needle.
Claims (4)
1. a kind of demonstration teaching aid in earth magnetic field, which is characterized in that the demonstration teaching aid includes non-magnetic material system
At disk (1), be equipped with bar magnet (2) in the middle part of the disk, the surrounding distribution of disk is multiple made of non-magnetic material
Collapsible rack (3), Collapsible rack are equipped with needle；Collapsible rack (3) folding be placed on disk be equipped with it is mating recessed
In slot (4).
2. the demonstration teaching aid in earth magnetic field as described in claim 1, which is characterized in that the surrounding of the disk (1) is equal
6~12 Collapsible racks (3) of even distribution, each Collapsible rack are equipped with a needle (5).
3. the demonstration teaching aid in earth magnetic field as described in claim 1, which is characterized in that the needle (5) is diamond shape magnetic
Needle or wing needle, diamond shape needle or wing needle are fixed on vacuum chuck (6) and can rotate freely, vacuum chuck (6) according to
By vacuum on the smooth Collapsible rack in surface (3).
4. the demonstration teaching aid in the earth magnetic field as described in claims 1 to 3 is any, which is characterized in that disk (1) back
It is equipped with hook (7) afterwards, can hang on support (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721836590.7U CN208284135U (en) | 2017-12-25 | 2017-12-25 | A kind of demonstration teaching aid in earth magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721836590.7U CN208284135U (en) | 2017-12-25 | 2017-12-25 | A kind of demonstration teaching aid in earth magnetic field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208284135U true CN208284135U (en) | 2018-12-25 |
Family
ID=64748523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721836590.7U Expired - Fee Related CN208284135U (en) | 2017-12-25 | 2017-12-25 | A kind of demonstration teaching aid in earth magnetic field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208284135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113409663A (en) * | 2021-07-01 | 2021-09-17 | 方昶朔 | Omnibearing magnetic field display device |
-
2017
- 2017-12-25 CN CN201721836590.7U patent/CN208284135U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113409663A (en) * | 2021-07-01 | 2021-09-17 | 方昶朔 | Omnibearing magnetic field display device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181225 Termination date: 20211225 |