CN201383246Y - Dynamometer for physics teaching - Google Patents
Dynamometer for physics teaching Download PDFInfo
- Publication number
- CN201383246Y CN201383246Y CN200920011465U CN200920011465U CN201383246Y CN 201383246 Y CN201383246 Y CN 201383246Y CN 200920011465 U CN200920011465 U CN 200920011465U CN 200920011465 U CN200920011465 U CN 200920011465U CN 201383246 Y CN201383246 Y CN 201383246Y
- Authority
- CN
- China
- Prior art keywords
- dynamometer
- spring
- shell
- housing
- pointer
- 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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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model provides a dynamometer for physics teaching, which relates to a teaching demonstration appliance, in particular to an improvement of the structure of the dynamometer. The dynamometer for physics teaching has a good visual effect and can show the interaction of force. The dynamometer comprises a transparent shell with graduations. The structure of the dynamometer has the following characteristics: a spring is arranged in the shell, one end of the spring is fixed on the top of the shell, and the other end of the spring is provided with a pointer, and the pointer is respectively connected with a hook rod on the lower side of the shell and a pressure lever on the upper side of the shell.
Description
Technical field:
The utility model relates to a kind of teaching demonstration apparatus, more particularly, relates to a kind of improvement of dynamometer structure.
Background technology:
In physics teaching in secondary school, the size of test force is used dynamometer usually.But dynamometer commonly used is also opaque, is not easy to the inner structure of observation of students dynamometer; In addition, function singleness.
The utility model content:
The utility model is exactly at the problems referred to above, and a kind of intuitive dynamometer that interactional physics teaching strong, can expressive force is used is provided.
For realizing above-mentioned purpose of the present utility model, the utility model adopts following technical scheme, and the utility model comprises that the surface has the transparent shell of scale, and its structural feature is to be provided with spring in housing, one end of spring is fixed on the top of housing, and the other end of spring is provided with pointer; Pointer is connected with the hook bar of housing below, the depression bar of housing top respectively.
The beneficial effects of the utility model:
Because the utility model is to be provided with spring in transparent shell, an end of spring is fixed on the top of housing, and the other end of spring is provided with pointer; Pointer is connected with the hook bar of housing below, the depression bar of housing top respectively; The student can be clear that the inner structure of dynamometer, thereby easily to the interaction of power, produces darker perceptual knowledge, reaches the purpose of classroom instruction.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
The utility model comprises that the surface has the transparent shell 2 of scale, is provided with spring 4 in housing 2, and an end of spring 4 is fixed on the top of housing 2, and the other end of spring 4 is provided with pointer 3; Pointer 3 is connected with the hook bar 1 of housing 2 belows, the depression bar 5 of housing 2 tops respectively.
During use, press depression bar 5 downwards and can measure the size of being exerted pressure; Also can spur hook bar 1 downwards and can measure the size of the pulling force of executing.
Claims (1)
1, the dynamometer used of physics teaching comprises that the surface has the transparent shell of scale (2), it is characterized in that being provided with in housing (2) spring (4), and an end of spring (4) is fixed on the top of housing (2), and the other end of spring (4) is provided with pointer (3); Pointer (3) is connected with the hook bar (1) of housing (2) below, the depression bar (5) of housing (2) top respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920011465U CN201383246Y (en) | 2009-03-11 | 2009-03-11 | Dynamometer for physics teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920011465U CN201383246Y (en) | 2009-03-11 | 2009-03-11 | Dynamometer for physics teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201383246Y true CN201383246Y (en) | 2010-01-13 |
Family
ID=41526718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920011465U Expired - Fee Related CN201383246Y (en) | 2009-03-11 | 2009-03-11 | Dynamometer for physics teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201383246Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706488A (en) * | 2012-05-04 | 2012-10-03 | 昆山沪光汽车电器有限公司 | Tension detecting box |
| CN104101734A (en) * | 2014-08-06 | 2014-10-15 | 江南大学 | Vertical motion acceleration measurement |
-
2009
- 2009-03-11 CN CN200920011465U patent/CN201383246Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706488A (en) * | 2012-05-04 | 2012-10-03 | 昆山沪光汽车电器有限公司 | Tension detecting box |
| CN104101734A (en) * | 2014-08-06 | 2014-10-15 | 江南大学 | Vertical motion acceleration measurement |
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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: 20100113 Termination date: 20100311 |