CN204732040U - Magnetic field interaction force demonstration teaching aid - Google Patents
Magnetic field interaction force demonstration teaching aid Download PDFInfo
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- CN204732040U CN204732040U CN201520449481.4U CN201520449481U CN204732040U CN 204732040 U CN204732040 U CN 204732040U CN 201520449481 U CN201520449481 U CN 201520449481U CN 204732040 U CN204732040 U CN 204732040U
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- magnet
- measuring cup
- experiment measuring
- magnetic field
- teaching aid
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Abstract
The utility model relates to physics teaching apparatus field, relate to a kind of magnetic field interaction force demonstration teaching aid in particular, the experiment measuring cup of this magnetic field interaction force demonstration teaching aid is manufactured by transparent ABS plastics, scale is carved with at the top of experiment measuring cup, the cup bottom of experiment measuring cup inside is fixed with a spring, the spring other end is connected with No. two magnet, experiment measuring cup opening part is provided with a cylindrical chock, chock both ends of the surface are provided with cylindrical stopper rod, on fixed bar, cover has a cylindrical magnet, when a magnet and No. two magnet homopolarities near time, No. two magnet is Compress Spring due to repulsive force effect, and a magnet and No. two magnet heteropoles near time, No. two magnet is extension spring due to attractive force effect, the distance of a magnet and No. two magnet is also changed by mobile chock position, the change in displacement of spring is observed by reading scale value, record the change of two magnetic pole acting forces, this teaching aid is easy to use, can exhibiting magnetic field power mechanism intuitively.<pb pnum="1" />
Description
Technical field
The utility model relates to physics teaching apparatus field, relates to a kind of magnetic field interaction force demonstration teaching aid in particular.
Background technology
In the teaching process of physics about magnetic field, teacher needs to explain field pole to student, and the principle that homopolar-repulsion, heteropole are attracting, and needs demonstration two pole pitch nearer, and the process that acting force is each other larger, in teaching process.
The teaching aid that current teacher demonstrates field pole knowledge on classroom is fairly simple, close to each other or the centre of two magnet is only adopted to demonstrate knowledge of textbook across certain part article, but simple two blocks of magnet cannot demonstrate out magnetic field apart from nearer, the principle that acting force is each other larger.
Summary of the invention
The technical matters that the utility model mainly solves is to provide a kind of magnetic field interaction force demonstration teaching aid, by arranging two magnet at quarter in graduated experiment measuring cup, and be connected to spring and stopper rod, reach the object that the nearlyer acting force each other of spacing of demonstration magnet is larger.
For solving the problems of the technologies described above, the utility model relates to physics teaching apparatus field, relate to a kind of magnetic field interaction force demonstration teaching aid in particular, this magnetic field interaction force demonstration teaching aid comprises the cylindrical experiment measuring cup of an one end open, experiment measuring cup is manufactured by transparent ABS plastics, and scale is carved with at the top of experiment measuring cup, is provided with a base bottom experiment measuring cup, it is semicircular groove that base top is provided with a cross section, and the diameter of groove and experiment measuring cup equal diameters.
The cup bottom of experiment measuring cup inside is fixed with a spring, the spring other end is connected with No. two magnet, No. two magnet are cylindrical, and No. two magnet two magnetic poles are positioned at two cylinder end faces, experiment measuring cup opening part is provided with a cylindrical chock, chock and experiment measuring cup interference fit, chock both ends of the surface are provided with cylindrical stopper rod, the diameter of stopper rod is less than the diameter of chock, stopper rod is positioned at the handle that the outside one end of experiment measuring cup is provided with spheroidal, the center, one end that stopper rod is positioned at experiment measuring cup inside is provided with a cylindrical fixed bar, fixed bar diameter is less than the diameter of stopper rod, and fixed bar is coaxial with stopper rod, on fixed bar, cover has a cylindrical magnet, magnet two magnetic pole is positioned at two cylinder end faces, and a magnetic blow out centre is provided with a columniform center pit, fixed bar radial direction is provided with a circular hole, and in circular hole, be furnished with the latch of a L shape, a magnet is fixed on fixed bar by latch.
As the further optimization of the technical program, base described in the utility model is manufactured by plastics, and experiment measuring cup is bonded in the groove of base top by bonding agent.
As the further optimization of the technical program, the scale minimum value at experiment measuring cup top described in the utility model is 1 ㎜.
As the further optimization of the technical program, a magnet described in the utility model and No. two magnet all with experiment measuring cup clearance fit.
As the further optimization of the technical program, the diameter of the center pit of a magnet described in the utility model is greater than the diameter of fixed bar, and is less than the diameter of stopper rod.
As the further optimization of the technical program, stopper rod described in the utility model, handle, chock, fixed bar are monolithic construction, and by rubber manufacture.
The beneficial effect of a kind of magnetic field interaction force demonstration teaching aid of the utility model is: the experiment measuring cup of this magnetic field interaction force demonstration teaching aid is manufactured by transparent ABS plastics, scale is carved with at the top of experiment measuring cup, the cup bottom of experiment measuring cup inside is fixed with a spring, the spring other end is connected with No. two magnet, experiment measuring cup opening part is provided with a cylindrical chock, chock both ends of the surface are provided with cylindrical stopper rod, on fixed bar, cover has a cylindrical magnet, when a magnet and No. two magnet homopolarities near time, No. two magnet is Compress Spring due to repulsive force effect, and a magnet and No. two magnet heteropoles near time, No. two magnet is extension spring due to attractive force effect, the distance of a magnet and No. two magnet is also changed by mobile chock position, the change in displacement of spring is observed by reading scale value, thus record the change of two magnetic pole acting forces, this teaching aid is easy to use, can exhibiting magnetic field power mechanism intuitively, deepen the impression of student.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and specific implementation method, the utility model is described in more detail.
Fig. 1 is the structure cut-open view of a kind of magnetic field interaction force demonstration teaching aid of the utility model;
Fig. 2 is the vertical view of a kind of magnetic field interaction force demonstration teaching aid of the utility model;
Fig. 3 is the left view of a kind of magnetic field interaction force demonstration teaching aid of the utility model.
In figure: experiment measuring cup 1; Base 2; Stopper rod 3; Handle 4; Chock 5; Fixed bar 6; Latch 7; A magnet 8; No. two magnet 9; Spring 10; Center pit 11; Scale 12.
Embodiment
At Fig. 1, 2, in 3: the utility model relates to physics teaching apparatus field, relate to a kind of magnetic field interaction force demonstration teaching aid in particular, this magnetic field interaction force demonstration teaching aid comprises the cylindrical experiment measuring cup 1 of an one end open, experiment measuring cup 1 is manufactured by transparent ABS plastics, the object of experiment measuring cup 1 inside can be observed directly, conveniently observe measurement, scale 12 is carved with at the top of experiment measuring cup 1, convenient measuring and calculating internal motion part displacement situation, a base 2 is provided with bottom experiment measuring cup 1, it is semicircular groove that base 2 top is provided with a cross section, and the diameter of groove and experiment measuring cup 1 equal diameters, this teaching aid can be placed in any plane.
The cup bottom of experiment measuring cup 1 inside is fixed with a spring 10, spring 10 other end is connected with No. two magnet 9, No. two magnet 9 are cylindrical, and No. two magnet 9 liang of magnetic poles are positioned at two cylinder end faces, experiment measuring cup 1 opening part is provided with a cylindrical chock 5, chock 5 and experiment measuring cup 1 interference fit, chock 5 both ends of the surface are provided with cylindrical stopper rod 3, the diameter of stopper rod 3 is less than the diameter of chock 5, stopper rod 3 is positioned at the handle 4 that experiment outside one end of measuring cup 1 is provided with spheroidal, conveniently hold handle 4 plug chock 5, the center, one end that stopper rod 3 is positioned at experiment measuring cup 1 inside is provided with a cylindrical fixed bar 6, fixed bar 6 diameter is less than the diameter of stopper rod 3, and fixed bar 6 is coaxial with stopper rod 3, on fixed bar 6, cover has a cylindrical magnet 8, a magnet 8 liang of magnetic poles are positioned at two cylinder end faces, and magnet 8 center is provided with a columniform center pit 11, fixed bar 6 radial direction is provided with a circular hole, and in circular hole, be furnished with the latch 7 of a L shape, facilitate staff plug, a magnet 8 is fixed on fixed bar 6 by latch 7.
Base 2 is manufactured by plastics, low cost, and good stability, experiment measuring cup 1 is bonded in the groove at base 2 top by bonding agent.Scale 12 minimum value at experiment measuring cup 1 top is 1 ㎜, and size to fit, facilitates the observation personnel number of degrees.
A magnet 8 and No. two magnet 9 all with experiment measuring cup 1 clearance fit, can friction force be effectively reduced, fully can reflect the size of magnetic field force.The diameter of the center pit 11 of a magnet 8 is greater than the diameter of fixed bar 6, and is less than the diameter of stopper rod 3, and magnet 8 Absorbable organic halogens is fixed on fixed bar 6.Stopper rod 3, handle 4, chock 5, fixed bar 6 are monolithic construction, and by rubber manufacture, made of soft, good airproof performance, chock 5 Absorbable organic halogens is fixed on the inwall of experiment measuring cup 1.
During use, chock 5 can be extracted experiment measuring cup 1, extract latch 7, adjust the position of magnetic pole of a magnet 8, again by chock 5 loading test measuring cup 1 inwall, and adjust the position of a magnet 8, when a magnet 8 and No. two magnet 9 homopolarities near time, No. two magnet 9 is Compress Spring 10 due to repulsive force effect, and a magnet 8 and No. two magnet 9 heteropoles near time, No. two magnet 9 is extension spring 10 due to attractive force effect, the distance of a magnet 8 and No. two magnet 9 is also changed by mobile chock 5 position, the change in displacement of spring 10 is observed by reading scale 12 value, thus record the change of two magnetic pole acting forces, this teaching aid is easy to use, can exhibiting magnetic field power mechanism intuitively, deepen the impression of student.
Certainly; above-mentioned explanation is not limitation of the utility model; the utility model is also not limited only to above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also belongs to protection domain of the present utility model.
Claims (6)
1. a magnetic field interaction force demonstration teaching aid, it is characterized in that: described magnetic field interaction force demonstration teaching aid comprises the cylindrical experiment measuring cup (1) of an one end open, experiment measuring cup (1) is manufactured by transparent ABS plastics, scale (12) is carved with at the top of experiment measuring cup (1), experiment measuring cup (1) bottom is provided with a base (2), it is semicircular groove that base (2) top is provided with a cross section, and the diameter of groove and experiment measuring cup (1) equal diameters, the cup bottom of experiment measuring cup (1) inside is fixed with a spring (10), spring (10) other end is connected with No. two magnet (9), No. two magnet (9) are cylindrical, and No. two magnet (9) two magnetic poles are positioned at two cylinder end faces, experiment measuring cup (1) opening part is provided with a cylindrical chock (5), chock (5) and experiment measuring cup (1) interference fit, chock (5) both ends of the surface are provided with cylindrical stopper rod (3), the diameter of stopper rod (3) is less than the diameter of chock (5), stopper rod (3) is positioned at the handle (4) that experiment measuring cup (1) outside one end is provided with spheroidal, the center, one end that stopper rod (3) is positioned at experiment measuring cup (1) inner is provided with a cylindrical fixed bar (6), fixed bar (6) diameter is less than the diameter of stopper rod (3), and fixed bar (6) is coaxial with stopper rod (3), the upper cover of fixed bar (6) has a cylindrical magnet (8), magnet (8) two magnetic pole is positioned at two cylinder end faces, and magnet (8) center is provided with a columniform center pit (11), fixed bar (6) radial direction is provided with a circular hole, and in circular hole, be furnished with the latch (7) of a L shape, a magnet (8) is fixed on fixed bar (6) by latch (7).
2. magnetic field interaction force demonstration teaching aid according to claim 1, is characterized in that: described base (2) is manufactured by plastics, and experiment measuring cup (1) is bonded in the groove at base (2) top by bonding agent.
3. magnetic field interaction force demonstration teaching aid according to claim 1, is characterized in that: scale (12) minimum value at described experiment measuring cup (1) top is 1 ㎜.
4. magnetic field interaction force demonstration teaching aid according to claim 1, is characterized in that: a described magnet (8) and No. two magnet (9) all with test measuring cup (1) clearance fit.
5. magnetic field interaction force demonstration teaching aid according to claim 1, it is characterized in that: center pit (11) diameter of a described magnet (8) is greater than fixed bar (6) diameter, and is less than stopper rod (3) diameter.
6. magnetic field interaction force demonstration teaching aid according to claim 1, it is characterized in that: described stopper rod (3), handle (4), chock (5), fixed bar (6) they are monolithic construction, and by rubber manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520449481.4U CN204732040U (en) | 2015-06-28 | 2015-06-28 | Magnetic field interaction force demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520449481.4U CN204732040U (en) | 2015-06-28 | 2015-06-28 | Magnetic field interaction force demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204732040U true CN204732040U (en) | 2015-10-28 |
Family
ID=54390375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520449481.4U Expired - Fee Related CN204732040U (en) | 2015-06-28 | 2015-06-28 | Magnetic field interaction force demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204732040U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106023749A (en) * | 2016-07-11 | 2016-10-12 | 齐治平 | Magnetic experiment device |
| CN106601098A (en) * | 2017-01-01 | 2017-04-26 | 重庆科技学院 | Application method of small static magnetic field experimental device |
| CN109935142A (en) * | 2019-04-11 | 2019-06-25 | 王天权 | A kind of apparatus for demonstrating that can demonstrate different types of active force and reaction force |
| CN110503879A (en) * | 2019-09-05 | 2019-11-26 | 北京市第一七一中学 | A kind of high school physics interaction force demonstration teaching aid |
-
2015
- 2015-06-28 CN CN201520449481.4U patent/CN204732040U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106023749A (en) * | 2016-07-11 | 2016-10-12 | 齐治平 | Magnetic experiment device |
| CN106601098A (en) * | 2017-01-01 | 2017-04-26 | 重庆科技学院 | Application method of small static magnetic field experimental device |
| CN106601098B (en) * | 2017-01-01 | 2018-06-12 | 重庆科技学院 | A kind of application method of small-sized magnetostatic field experimental provision |
| CN109935142A (en) * | 2019-04-11 | 2019-06-25 | 王天权 | A kind of apparatus for demonstrating that can demonstrate different types of active force and reaction force |
| CN110503879A (en) * | 2019-09-05 | 2019-11-26 | 北京市第一七一中学 | A kind of high school physics interaction force demonstration teaching aid |
| CN110503879B (en) * | 2019-09-05 | 2021-04-27 | 北京市第一七一中学 | High school physics interaction force demonstration teaching aid |
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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 |
Granted publication date: 20151028 Termination date: 20160628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |