CN202720806U - Dynamometer used for teaching - Google Patents
Dynamometer used for teaching Download PDFInfo
- Publication number
- CN202720806U CN202720806U CN 201220427675 CN201220427675U CN202720806U CN 202720806 U CN202720806 U CN 202720806U CN 201220427675 CN201220427675 CN 201220427675 CN 201220427675 U CN201220427675 U CN 201220427675U CN 202720806 U CN202720806 U CN 202720806U
- Authority
- CN
- China
- Prior art keywords
- housing
- spring
- dynamometer
- teaching
- fixed
- 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 relates to a dynamometer used for teaching. The dynamometer comprises a first housing, and a second housing is sleeved in the first housing. A spring is sleeved in the second housing. An end of the spring is fixed on bottom of the first housing, and the other end of the spring is fixed on a top end of the second housing. The second housing can stretch out of the first housing. The second housing is provided with scale, a value of the second housing stretches out of the first housing is a measured value. A hook is disposed on an end of the first housing which is provided with the spring. The first housing and the second housing are transparent housings. Through the transparent housings, students can see inner structure of the dynamometer clearly, and thus the students are easy to get stronger perceptual knowledge of interaction of forces, and objectives of classroom teaching are achieved.
Description
Technical field
The utility model relates to a kind of teaching aid, relates to specifically a kind of dynamometer.
Background technology
At present in physics teaching, test force very much not usually use dynamometer, but the present dynamometer of usefulness and opaque is not easy to the inner structure of observation of students dynamometer.
The utility model content
Problem to be solved in the utility model is for above problem, provides a kind of intuitive strong, interactional teaching dynamometer that can expressive force.
For addressing the above problem, the technical scheme that the utility model adopts is: the teaching dynamometer, comprise the first housing, be arranged with the second housing in described the first housing, be arranged with spring in described the second housing, one end of described spring is fixed on the bottom in described the first housing, the other end of described spring is fixed on the top of described the second housing, described the second housing can stretch out described the first housing, be carved with scale on described the second housing, described the second housing stretches out the numerical value of described the first housing for measuring numerical value, and described the first housing has the outside of spring one end to be provided with hook, and described the first housing and described the second housing all are transparent shell.
The utility model is taked above technical scheme, have the following advantages: the teaching dynamometer, comprise the first housing, be arranged with the second housing in described the first housing, be arranged with spring in described the second housing, one end of described spring is fixed on the bottom in described the first housing, the other end of described spring is fixed on the top of described the second housing, described the second housing can stretch out described the first housing, be carved with scale on described the second housing, described the second housing stretches out the numerical value of described the first housing for measuring numerical value, and described the first housing has the outside of spring one end to be provided with hook, and described the first housing and described the second housing all are transparent shell; The arranging of transparent shell can allow the clearer inner structure of seeing dynamometer of student, thereby easily the interaction of power produced stronger perceptual knowledge, reaches the purpose of classroom instruction.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
Among the figure: 1-the first housing; 2-the second housing; The 3-spring; The 4-hook.
Embodiment
Embodiment: teaching dynamometer, comprise the first housing 1, be arranged with the second housing 2 in described the first housing 1, be arranged with spring 3 in described the second housing 2, one end of described spring 3 is fixed on the bottom in described the first housing 1, the other end of described spring 3 is fixed on the top of described the second housing 2, described the second housing 2 can stretch out described the first housing 1, be carved with scale on described the second housing 2, described the second housing 2 stretches out the numerical value of described the first housing 1 for measuring numerical value, described the first housing 1 has the outside of spring 3 one ends to be provided with hook 4, and described the first housing 1 and described the second housing 2 all are transparent shell; The arranging of transparent shell can allow the clearer inner structure of seeing dynamometer of student, thereby easily the interaction of power produced stronger perceptual knowledge, reaches the purpose of classroom instruction.
Claims (1)
1. impart knowledge to students and use dynamometer, comprise the first housing, be arranged with the second housing in described the first housing, be arranged with spring in described the second housing, one end of described spring is fixed on the bottom in described the first housing, the other end of described spring is fixed on the top of described the second housing, described the second housing can stretch out described the first housing, be carved with scale on described the second housing, described the second housing stretches out the numerical value of described the first housing for measuring numerical value, described the first housing has the outside of spring one end to be provided with hook, it is characterized in that, described the first housing and described the second housing all are transparent shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220427675 CN202720806U (en) | 2012-08-20 | 2012-08-20 | Dynamometer used for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220427675 CN202720806U (en) | 2012-08-20 | 2012-08-20 | Dynamometer used for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202720806U true CN202720806U (en) | 2013-02-06 |
Family
ID=47622620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220427675 Expired - Fee Related CN202720806U (en) | 2012-08-20 | 2012-08-20 | Dynamometer used for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202720806U (en) |
-
2012
- 2012-08-20 CN CN 201220427675 patent/CN202720806U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20130820 |