CN204087637U - A kind of Portable magnetic damping instruments used for education - Google Patents
A kind of Portable magnetic damping instruments used for education Download PDFInfo
- Publication number
- CN204087637U CN204087637U CN201420407689.5U CN201420407689U CN204087637U CN 204087637 U CN204087637 U CN 204087637U CN 201420407689 U CN201420407689 U CN 201420407689U CN 204087637 U CN204087637 U CN 204087637U
- Authority
- CN
- China
- Prior art keywords
- cross bar
- instruments used
- base plate
- fork
- magnetic damping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of Portable magnetic damping instruments used for education, aim to provide a kind of structure simple, easy-to-mount Portable magnetic damping instruments used for education, its drip irrigation device is, comprise base and be placed in the erecting frame on base, described erecting frame comprises base plate, the both sides of described base plate are hinged with back up pad, cross bar is provided with between two back up pads, intrinsic mounting blocks is overlapped at the two ends of described cross bar, described back up pad offers open slot, and the two sides of described mounting blocks are equipped with the chute be connected with the sidewall slippage of open slot; The below of described cross bar is provided with several magnetics, several magnetic uniform intervals are distributed between two back up pads, each magnetic is equipped with raised line, described base plate is provided with the suitable hole clipping with raised line, swinging block is provided with between any two adjacent magnetics, described swinging block is removably connected with fork, and the other end and the cross bar of fork are rotationally connected.
Description
Technical field
The utility model relates to teaching equipment field, and more particularly, it relates to a kind of Portable magnetic damping instruments used for education.
Background technology
Magnetic damping is the key concept in electromagnetics, and the mechanical effect that it produces has practical value very widely.
The swinging block swung in magnetic field, can produce induction electromotive force, and can produce induction current in swinging block, magnetic field will produce Ampère force to induction current, form the moment of couple contrary with original swaying direction, play damping action to the rotation of swinging block simultaneously.
When carrying out physics teaching, in order to student can be allowed to understand the concept of magnetic damping preferably and be conducive to teaching and carry out, carry out tutor auxiliary platform by the demonstrator of magnetic damping can be adopted.But the general volume of the existing teaching experimental for demonstrating magnetic damping is all comparatively large, and structure is comparatively complicated, is not easy to teacher and is carried to classroom and demonstrates.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of structure simple, easy-to-mount Portable magnetic damping instruments used for education.
For achieving the above object, the utility model provides following technical scheme: a kind of Portable magnetic damping instruments used for education, comprise base and be placed in the erecting frame on base, described erecting frame comprises base plate, the both sides of described base plate are hinged with back up pad, are provided with cross bar between two back up pads, and intrinsic mounting blocks is overlapped at the two ends of described cross bar, described back up pad offers open slot, and the two sides of described mounting blocks are equipped with the chute be connected with the sidewall slippage of open slot;
The below of described cross bar is provided with several magnetics, several magnetic uniform intervals are distributed between two back up pads, each magnetic is equipped with raised line, described base plate is provided with the hole clipping suitable with raised line, swinging block is provided with between any two adjacent magnetics, described swinging block is removably connected with fork, and the other end and the cross bar of fork are rotationally connected.
The utility model is set to further: the other end of described fork opposing oscillatory block is provided with runner assembly, and described runner assembly comprises rotation seat, and described rotation seat is embedded with bearing, and described rotation seat is rotationally connected by bearing and cross bar.
The utility model is set to further: the both ends of described fork are provided with external thread, and described fork is threaded with rotation seat and swinging block respectively.
The utility model is set to further: a sidewall of described base is provided with the article putting groove caved inward, and the openend of described article putting groove is provided with the seal pad for sealing article putting groove.
The utility model is set to further: described mounting blocks is provided with threaded hole, and described mounting blocks is threaded with cross bar by threaded hole.
The utility model is set to further: two back up pads are installed with locating piece in the another side of its relative support plate respectively, when back up pad is perpendicular to base plate, locating piece and base plate inconsistent.The utility model is set to further: described
The beneficial effects of the utility model: described cross bar is fixed on back up pad by mounting blocks, , mounting blocks is connected with the sidewall slippage of open slot by chute, mounting blocks is connected in back up pad, and mounting blocks to be matched with hole clipping by raised line to be fixed on base plate, just can get up by rapid-assembling, structure is simple, each parts of these magnetic damping instruments used for education are all that snapping assembles up, do not need specialist tools, make dismounting and assemble very convenient, the volume of magnetic damping instruments used for education is greatly reduced after having dismantled, be easy to carry, described swinging block is removably connected with fork simultaneously, the other end and the cross bar of fork are rotationally connected, make fork easily can change the swinging block of unlike material, be convenient to adjust the effect of magnetic damping lecture experiment, greatly promote to demonstrate the classroom instruction of magnetic damping phenomenon.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Portable magnetic damping of the utility model instruments used for education;
Fig. 2 is the structural representation of erecting frame in Fig. 1;
Fig. 3 is the structural representation of mounting blocks in Fig. 1;
Fig. 4 is the structural representation of magnetic.
In figure 1, base; 11, article putting groove; 12, seal pad; 2, erecting frame; 21, base plate; 211, hole clipping; 22, back up pad; 221, open slot; 222, locating piece; 3, cross bar; 4, mounting blocks; 41, chute; 5, magnetic; 51, raised line; 6, swinging block; 7, fork; 8, runner assembly; 81, rotation seat; 82, bearing.
Embodiment
Referring to figs. 1 through Fig. 4, a kind of Portable magnetic damping of the utility model instruments used for education are described further.
A kind of Portable magnetic damping instruments used for education, comprise base 1 and be placed in the erecting frame 2 on base 1, one sidewall of described base 1 is provided with the article putting groove 11 caved inward, this article putting groove 11 can be used for placing other parts of Portable magnetic damping instruments used for education, the openend of described article putting groove 11 is provided with the seal pad 12 for sealing article putting groove 11, sealing plate 12 side can be hinged with the open end of article putting groove 11, the sidewall of opposite side and base 1 is interlocked, and makes seal pad 12 can seal article putting groove 11.
Described erecting frame 2 comprises base plate 21, the both sides of described base plate 21 are hinged with back up pad 22, cross bar 3 is provided with between two back up pads 22, the two ends of described cross bar 3 are arranged with mounting blocks 4, described mounting blocks 4 is provided with threaded hole, described mounting blocks 4 is threaded with cross bar 3 by threaded hole, be convenient to mounting blocks 4 and cross bar 3 dismounting, described back up pad 22 offers open slot 221, the two sides of described mounting blocks 4 are equipped with the chute 41 be connected with the sidewall slippage of open slot 221, outwards overturn to prevent back up pad 22 transition, back up pad 22 can not be made perpendicular on base plate 21, two back up pads 22 are installed with locating piece 222 in the another side of its relative support plate 22 respectively, when back up pad 22 is perpendicular to base plate 21, locating piece 222 is inconsistent with base plate 21.
The below of described cross bar 3 is provided with several magnetics 5, several magnetic 5 uniform intervals are distributed between two back up pads 22, each magnetic 5 is equipped with raised line 51, described base plate 21 is provided with the suitable hole clipping 211 with raised line 51, magnetic 5 can be matched with hole clipping 211 by raised line 51 to be fixed on base plate 21, swinging block 6 is provided with between any two adjacent magnetics 5, described swinging block 6 is removably connected with fork 7, the other end of described fork 7 opposing oscillatory block 6 is provided with runner assembly 8, described runner assembly 8 comprises rotation seat 81, described rotation seat 81 is embedded with bearing 82, described rotation seat 81 is rotationally connected by bearing 82 and cross bar 3, each swinging block 6 will adopt unlike material, nylon pouring weight can be adopted, red copper variable weights and aluminium variable weights.
The both ends of wherein said fork 7 are provided with external thread, and described fork 7 is threaded with rotation seat 81 and swinging block 6 respectively, are convenient to the dismounting of fork 7 and rotation seat 81 and swinging block 6.
When needs are demonstrated, described cross bar 3 is fixed on back up pad 22 by mounting blocks 4, mounting blocks 4 is connected with the sidewall slippage of open slot 221 by chute 41, mounting blocks 4 is connected in back up pad 22, and mounting blocks 4 to be matched with hole clipping 211 by raised line 51 to be fixed on base plate 21, just can get up by rapid-assembling, structure is simple, these each parts of magnetic damping instruments used for education are all that snapping assembles up, do not need specialist tools, make dismounting and assemble very convenient, the volume of magnetic damping instruments used for education is greatly reduced after having dismantled, be easy to carry, parts after dismounting can be arranged in the article putting groove 11 of base 1, can prevent loss, described swinging block 6 is removably connected with fork 7 simultaneously, the other end and the cross bar 3 of fork 7 are rotationally connected, make fork 7 easily can change the swinging block 6 of unlike material, be convenient to adjust the effect of magnetic damping lecture experiment, greatly promote to demonstrate the classroom instruction of magnetic damping phenomenon.
When being demonstrated by magnetic damping instruments used for education of the present utility model, magnetic damping instruments used for education are placed in horizontal table top, with hand, the centering block on fork 7 is raised identical height, after loosing one's grip, fork 7 swings, and because the variable weights of each swing arm lower end is due to material difference, suffered damping is different, therefore the amplitude swung and time length also can be different, can complete the demonstration to magnetic damping experiment.
Claims (6)
1. Portable magnetic damping instruments used for education, comprise base and be placed in the erecting frame on base, it is characterized in that: described erecting frame comprises base plate, the both sides of described base plate are hinged with back up pad, cross bar is provided with between two back up pads, intrinsic mounting blocks is overlapped at the two ends of described cross bar, and described back up pad offers open slot, and the two sides of described mounting blocks are equipped with the chute be connected with the sidewall slippage of open slot;
The below of described cross bar is provided with several magnetics, several magnetic uniform intervals are distributed between two back up pads, each magnetic is equipped with raised line, described base plate is provided with the hole clipping suitable with raised line, swinging block is provided with between any two adjacent magnetics, described swinging block is removably connected with fork, and the other end and the cross bar of fork are rotationally connected.
2. a kind of Portable magnetic damping instruments used for education according to claim 1, it is characterized in that: the other end of described fork opposing oscillatory block is provided with runner assembly, described runner assembly comprises rotation seat, and described rotation seat is embedded with bearing, and described rotation seat is rotationally connected by bearing and cross bar.
3. a kind of Portable magnetic damping instruments used for education according to claim 2, it is characterized in that: the both ends of described fork are provided with external thread, described fork is threaded with rotation seat and swinging block respectively.
4. a kind of Portable magnetic damping instruments used for education according to claim 1,2 or 3, is characterized in that: a sidewall of described base is provided with the article putting groove caved inward, the openend of described article putting groove is provided with the seal pad for sealing article putting groove.
5. a kind of Portable magnetic damping instruments used for education according to claim 1,2 or 3, it is characterized in that: described mounting blocks is provided with threaded hole, described mounting blocks is threaded with cross bar by threaded hole.
6. a kind of Portable magnetic damping instruments used for education according to claim 1,2 or 3, is characterized in that: two back up pads are installed with locating piece in the another side of its relative support plate respectively, when back up pad is perpendicular to base plate, locating piece and base plate inconsistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407689.5U CN204087637U (en) | 2014-07-22 | 2014-07-22 | A kind of Portable magnetic damping instruments used for education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407689.5U CN204087637U (en) | 2014-07-22 | 2014-07-22 | A kind of Portable magnetic damping instruments used for education |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204087637U true CN204087637U (en) | 2015-01-07 |
Family
ID=52180320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420407689.5U Expired - Fee Related CN204087637U (en) | 2014-07-22 | 2014-07-22 | A kind of Portable magnetic damping instruments used for education |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204087637U (en) |
-
2014
- 2014-07-22 CN CN201420407689.5U patent/CN204087637U/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 |
Granted publication date: 20150107 Termination date: 20150722 |
|
| EXPY | Termination of patent right or utility model |