CN204423777U - Magnetic shielding demonstration device - Google Patents
Magnetic shielding demonstration device Download PDFInfo
- Publication number
- CN204423777U CN204423777U CN201520124270.3U CN201520124270U CN204423777U CN 204423777 U CN204423777 U CN 204423777U CN 201520124270 U CN201520124270 U CN 201520124270U CN 204423777 U CN204423777 U CN 204423777U
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- China
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- magnetic
- framework
- flexible cord
- magnetic shielding
- demonstration device
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Abstract
The utility model discloses a kind of magnetic shielding demonstration device, by arranging magnetic (3) on the top of framework (1), base (8) arranges link (7), link arranges flexible cord (6), at the other end of flexible cord (6), the object (4) that can be attracted by magnetic is set, in the upper end of the side of framework (1), fixed mount (2) is set, compared with prior art, the utility model can demonstrate maglev principle more intuitively, the material demonstration of magnetic shielding can be done simultaneously, deepen student to the understanding of magnetic and memory, student can also be made to be filled with curiosity to the object suspended, be surprised at the marvellous of suspension phenomenon on the one hand, want again the secret of probing into its behind on the one hand, add the interest of teaching, the teaching aid be particularly suitable for as Middle School Physics uses.
Description
Technical field
The utility model relates to a kind of physics educational apparatus, especially a kind of magnetic shielding demonstration device.
Background technology
Instruments used for education are a kind of important aids in teaching process, good instruments used for education not only can improve the interest of student, student can also be deepened to the understanding of learning content and memory, play a multiplier role, junior middle school student understands the magnet being only limitted to primary school period contact for magnetic phenomenon, how to explain that magnetic is this cannot see impalpable phenomenon, deepen student to the understanding of magnetic and memory, existing for student understanding risen to the understanding of rationality and have the consciousness be applied in life to be the difficult problem of pendulum in face of each middle school teacher.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of magnetic shielding demonstration device religion religion, not only demonstrate maglev principle, the material demonstration of magnetic shielding can be done simultaneously, deepen student to the understanding of magnetic and memory, student can also be made to be filled with curiosity to the object suspended, be surprised at the marvellous of suspension phenomenon on the one hand, want again the secret of probing into its behind on the one hand, add the interest of teaching.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: include framework and base, it is characterized in that: be provided with magnetic on the top of described framework, correspondingly with it on base, be provided with link, link is provided with flexible cord, flexible cord is provided with the object that can be attracted by magnetic, be provided with stiff end in the bottom of the object that can be attracted by magnetic, this stiff end is fixedly connected with flexible cord, is provided with fixed mount in the upper end of the side of framework.
Above-mentioned magnetic can be permanent magnet, and also satisfying is electromagnet, and the described object that can be attracted by magnetic can be iron, cobalt, nickel or the object containing iron, cobalt, nickel.
As the improvement project of technique scheme, described fixed mount is provided with lamination, more convenient to use, also not easily lose.
As further improvement, described flexible cord is preferably transparent flexible cord, and interest is stronger.
The utility model arranges magnetic by the top in framework, base arranges link, link arranges flexible cord, at the other end of flexible cord, the object that can be attracted by magnetic is set, in the upper end of the side of framework, fixed mount is set, compared with prior art, the utility model can demonstrate maglev principle more intuitively, the material demonstration of magnetic shielding can be done simultaneously, deepen student to the understanding of magnetic and memory, student can also be made to be filled with curiosity to the object suspended, be surprised at the marvellous of suspension phenomenon on the one hand, want again the secret of probing into its behind on the one hand, add the interest of teaching.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 2.
Fig. 3 is the structural representation of the utility model embodiment 3.
Shown in figure: 1 is framework, 2 is fixed mount, and 3 is magnetic, and 4 is the object that can be attracted by magnetic, and 5 is stiff end, and 6 is flexible cord, and 7 is link, and 8 is base, and 9 is lamination.
Embodiment
embodiment 1:with reference to Fig. 1, Fig. 1 is the structural representation of the utility model embodiment 1, base 8 is provided with square framework 1, magnetic 3 is inlaid with in the centre of the bottom of framework 1, in the present embodiment, magnetic is permanent magnet, correspondingly with it be provided with link 7 in the centre of base, link 7 is provided with transparent flexible cord 6, the object 4 that can be attracted by magnetic is provided with at the other end of flexible cord 6, the object 4 that can be attracted by magnetic in the present embodiment is iron nail, bottom in order to the object 4 being attracted by magnetic easy to connect is provided with the stiff end 5 of annular, iron nail is picked up facing to magnetic during use, the length adding iron nail due to flexible cord 7 is less than the height of framework 1, magnetic is again the inside of inlaying framework 1, after hand unclamps, iron nail is aerial because the attractive force of magnetic 3 is suspended in, a long way off owing to not seeing transparent flexible cord 7, just more have interesting, in order to the Magnetic Shielding Effectiveness of various material can be demonstrated, fixed mount 2 is provided with in the upper end of the side of framework 1, fixed mount 2 in the present embodiment is draw-in groove, when demonstrating the Magnetic Shielding Effectiveness of various material, can respectively by the card made with different materials in draw-in groove, such as: glass sheet, iron plate, aluminium flake, copper sheet is scraps of paper etc. even, get up very witty for the junior middle school student's demonstration just touching physics, be good at causing the interest of student.
Certainly, described magnetic 3 also can be electromagnet, and the object 4 that can be attracted by magnetic also can be iron, cobalt, nickel or the object similar object containing iron, cobalt, nickel, as iron nail, and key etc.
embodiment 2:with reference to Fig. 2, be the structural representation of embodiment 2, compared with embodiment 1, the difference of the present embodiment is: fixed mount 2 is through draw-in groove, the outside of the card of different materials by framework 1 can be inserted, also can play same effect during use.
embodiment 3:with reference to Fig. 3, for the structural representation of embodiment 3, compared with embodiment 1, the difference of the present embodiment is: fixed mount 2 is the iron wire frame that the upper end of framework 1 in side is arranged, in iron wire frame, be provided with the lamination 9 that various different materials is made, be provided with corresponding draw-in groove, during use in the upper end of opposite side framework 1, only need the card rotating different materials just can demonstrate the Magnetic Shielding Effectiveness of various different materials, and be also not easy to lose with the card that framework links together.
Below be only preferred implementation of the present utility model, it should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with claim limited range.For those skilled in the art, not departing from spirit and scope of the present utility model, some improvements and modifications can also be made and also should be considered as protection domain of the present utility model.
Claims (5)
1. a magnetic shielding demonstration device, include framework (1) and base (8), it is characterized in that: be provided with magnetic (3) on the top of described framework (1), correspondingly with it on base (8), be provided with link (7), link (7) is provided with flexible cord (6), the object (4) that can be attracted by magnetic is provided with at the other end of flexible cord (6), stiff end (5) is provided with in the bottom of the object (4) that can be attracted by magnetic, this stiff end (5) is fixedly connected with flexible cord (6), is provided with fixed mount (2) in the upper end of the side of framework (1).
2. magnetic shielding demonstration device according to claim 1, is characterized in that: on described fixed mount (2), be provided with lamination (9).
3. magnetic shielding demonstration device according to claim 1 and 2, is characterized in that: described flexible cord (6) is transparent flexible cord.
4. magnetic shielding demonstration device according to claim 1 and 2, is characterized in that: described magnetic is the one in permanent magnet or electromagnet, and the described object that can be attracted by magnetic is iron, cobalt or nickel or the object containing iron, cobalt, nickel.
5. magnetic shielding demonstration device according to claim 3, is characterized in that: described magnetic is the one in permanent magnet or electromagnet, and the described object that can be attracted by magnetic is iron, cobalt or nickel or the object containing iron, cobalt, nickel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520124270.3U CN204423777U (en) | 2015-03-03 | 2015-03-03 | Magnetic shielding demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520124270.3U CN204423777U (en) | 2015-03-03 | 2015-03-03 | Magnetic shielding demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204423777U true CN204423777U (en) | 2015-06-24 |
Family
ID=53474127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520124270.3U Expired - Fee Related CN204423777U (en) | 2015-03-03 | 2015-03-03 | Magnetic shielding demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204423777U (en) |
-
2015
- 2015-03-03 CN CN201520124270.3U patent/CN204423777U/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 | ||
| 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: 20150624 Termination date: 20170303 |