CN202434100U - Graphic demonstration device for composition of force - Google Patents
Graphic demonstration device for composition of force Download PDFInfo
- Publication number
- CN202434100U CN202434100U CN2011205551337U CN201120555133U CN202434100U CN 202434100 U CN202434100 U CN 202434100U CN 2011205551337 U CN2011205551337 U CN 2011205551337U CN 201120555133 U CN201120555133 U CN 201120555133U CN 202434100 U CN202434100 U CN 202434100U
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- CN
- China
- Prior art keywords
- magnetic
- spring scale
- elastic strip
- back plate
- hook
- 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 graphic demonstration device for composition of force. The graphic demonstration device comprises a magnetic back plate, wherein an elastic strip is arranged on the magnetic back plate; a fixed end of the elastic strip is connected to the magnetic back plate; a movable end of the elastic strip is provided with a hook; a pull rope is arranged on the hook; two ends of the pull rope are respectively connected with a fixed spring scale and a movable spring scale; the fixed end of the elastic strip is adsorbed to the magnetic back plate through a strongly magnetic suction disc; two ends of the rope are respectively provided with a pull ring; hooks of the fixed spring scale and the movable spring scale penetrate through the pull rings to tighten the pull rope; the back of the fixed spring scale is provided with a strong magnet; the fixed spring scale is adsorbed to the magnetic back plate through the strong magnet; a positioning magnetic suction disc is arranged on the magnetic back plate; and a tail hook of the movable spring scale is hooked on the positioning magnetic suction disc. By the demonstration device, various parts are adsorbed to the magnetic back plate through the magnet, are relatively fixed and can be moved according to the needs, and the demonstration device is convenient to operate and carry and good in demonstration effect.
Description
Technical field
The utility model relates to a kind of teaching aid, relates in particular to a kind of synthetic mapping apparatus for demonstrating of power.
Background technology
In the synthetic teaching of power, for simple picture analysis, the beginner often understands and has any problem, so the teacher adopts demonstration teaching aid that it is carried out on-the-spot demonstration, makes the student have understanding intuitively to power synthetic.Common apparatus for demonstrating is because structure is comparatively complicated, inconvenient operation, so its demonstration effect has a greatly reduced quality, for this reason, it is necessary designing a kind of simple in structure, easy to operate apparatus for demonstrating.
The utility model content
The purpose of the utility model provides a kind of synthetic mapping apparatus for demonstrating of power, and convenient synthetic the mapping with decomposition to power carried out teaching demonstration.
The utility model is that the technical scheme that its technical matters of solution is adopted is,
The synthetic mapping apparatus for demonstrating of power includes the magnetic backboard, and this magnetic backboard is provided with elastic strip; The stiff end of elastic strip is connected on the magnetic backboard; The movable end of elastic strip is provided with hook, and this hook is provided with stay cord, and the stay cord two ends are connected with fixing spring scale and movable spring scale respectively;
Particularly, the stiff end of said elastic strip is adsorbed on the magnetic backboard through the last one magnetic-disc; Said stay cord two ends are respectively equipped with draw ring, and the hook of said fixing spring scale and movable spring scale passes this draw ring stay cord is tightened;
In an embodiment of the utility model, the said fixing spring scale back side is provided with strong magnet, and the fixing spring scale is adsorbed on the magnetic backboard through this strong magnet; Also be provided with the location magnetic-disc on the said magnetic backboard, the afterbody of movable spring scale is hooked on this location magnetic-disc.
The advantage of the utility model is that this apparatus for demonstrating is adsorbed in each parts on the magnetic backboard through magnet, but relative fixed can move parts as required again, easy to operate, be easy to carry good demonstration effect.
Description of drawings
Fig. 1 is the structural representation of the synthetic mapping apparatus for demonstrating of the power that proposes of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand with effect and understand, below in conjunction with illustrating and specific embodiment, further set forth the utility model.
As shown in Figure 1; The synthetic mapping apparatus for demonstrating of the power that the utility model proposes includes magnetic backboard 1; This magnetic backboard 1 is provided with elastic strip 2, and the stiff end of elastic strip 2 is connected on the magnetic backboard 1, and the movable end of elastic strip 2 is provided with hook 21; This hook 21 is provided with stay cord 3, and stay cord 3 two ends are connected with fixing spring scale 41 and movable spring scale 42 respectively;
Particularly, the stiff end of said elastic strip 2 is adsorbed on the magnetic backboard through strong magnetic-disc 22; Said stay cord 3 two ends are respectively equipped with draw ring, and the hook of said fixing spring scale 41 and movable spring scale 42 passes this draw ring stay cord 3 is tightened;
In the present embodiment, the back side of said fixing spring scale 41 is provided with strong magnet, and fixing spring scale 41 is adsorbed on the magnetic backboard 1 through this strong magnet; Also be provided with location magnetic-disc 421 on the said magnetic backboard 1, the afterbody of movable spring scale 42 is hooked on this location magnetic-disc 421.
This apparatus for demonstrating is adsorbed in each parts on the magnetic backboard through magnet, but relative fixed can move parts as required again, easy to operate, be easy to carry good demonstration effect.
More than show and described the advantage of ultimate principle, principal character and the utility model of the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the instructions that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (5)
1. the synthetic mapping apparatus for demonstrating of power; It is characterized in that, include the magnetic backboard, this magnetic backboard is provided with elastic strip; The stiff end of elastic strip is connected on the magnetic backboard; The movable end of elastic strip is provided with hook, and this hook is provided with stay cord, and the stay cord two ends are connected with fixing spring scale and movable spring scale respectively.
2. the synthetic mapping apparatus for demonstrating of power according to claim 1 is characterized in that the stiff end of said elastic strip is adsorbed on the magnetic backboard through the last one magnetic-disc.
3. the synthetic mapping apparatus for demonstrating of power according to claim 1 is characterized in that, said stay cord two ends are respectively equipped with draw ring, and the hook of said fixing spring scale passes this draw ring stay cord is tightened.
4. the synthetic mapping apparatus for demonstrating of power according to claim 1 is characterized in that, the said fixing spring scale back side is provided with strong magnet, and the fixing spring scale is adsorbed on the magnetic backboard through this strong magnet.
5. the synthetic mapping apparatus for demonstrating of power according to claim 1 is characterized in that, also is provided with the location magnetic-disc on the said magnetic backboard, and the afterbody of movable spring scale is hooked on this location magnetic-disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205551337U CN202434100U (en) | 2011-12-28 | 2011-12-28 | Graphic demonstration device for composition of force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205551337U CN202434100U (en) | 2011-12-28 | 2011-12-28 | Graphic demonstration device for composition of force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202434100U true CN202434100U (en) | 2012-09-12 |
Family
ID=46783528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205551337U Expired - Fee Related CN202434100U (en) | 2011-12-28 | 2011-12-28 | Graphic demonstration device for composition of force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202434100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107862946A (en) * | 2017-12-12 | 2018-03-30 | 孙丹 | The synthesis demonstration device of power in physics teaching |
-
2011
- 2011-12-28 CN CN2011205551337U patent/CN202434100U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107862946A (en) * | 2017-12-12 | 2018-03-30 | 孙丹 | The synthesis demonstration device of power in physics teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20121228 |