CN203149950U - Dynamometer - Google Patents
Dynamometer Download PDFInfo
- Publication number
- CN203149950U CN203149950U CN 201320191708 CN201320191708U CN203149950U CN 203149950 U CN203149950 U CN 203149950U CN 201320191708 CN201320191708 CN 201320191708 CN 201320191708 U CN201320191708 U CN 201320191708U CN 203149950 U CN203149950 U CN 203149950U
- Authority
- CN
- China
- Prior art keywords
- housing
- spring
- dynamometer
- zero
- fixator
- 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 relates to a dynamometer which comprises a first housing. A second housing is sleeved in the first housing. A spring is sleeved in the second housing. One end of the first housing is provided with a zero-setting device. The zero-setting device comprises a spring fixer. The spring extends out of one end of the first housing and is connected with a zero-setting handle through the spring fixer. The other end of the spring is fixed at the top end of the second housing. The second housing can extend out of the first housing. The second housing is provided with scales. The number of extension part of the second housing out of the first housing is the measured value. A hook is provided outside one end of the housing, which is provided with the spring. The first housing and the second housing are transparent. The transparent housings can cause the student to see inner structure of the dynamometer more clearly, thereby easily causing clearer perceptual knowledge to mutual interaction of forces and obtaining a purpose of class teaching.
Description
Technical field
The utility model relates to a kind of teaching aid, relates to a kind of dynamometer specifically.
Background technology
In physics teaching, the size of test force is used dynamometer usually at present, but the dynamometer of usefulness is also opaque now, 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 at above problem, provides a kind of intuitive strong, interactional dynamometer that can expressive force.
For addressing the above problem, the technical scheme that the utility model adopts is: dynamometer, comprise first housing, be arranged with second housing in described first housing, be arranged with spring in described second housing, one end of described first housing is provided with balancing controls, described balancing controls comprise the spring fixator, the end that described spring stretches out described first housing is connected with the zeroing handle by described spring fixator, the other end of described spring is fixed on the top of described second housing, described second housing can stretch out described first housing, be carved with scale on described second housing, described second housing stretches out the numerical value of described first housing for measuring numerical value, and described first housing has the outside of spring one end to be provided with hook, and described first housing and described second housing all are transparent shell.
The utility model is taked above technical scheme, have the following advantages: dynamometer, comprise first housing, be arranged with second housing in described first housing, be arranged with spring in described second housing, one end of described first housing is provided with balancing controls, described balancing controls comprise the spring fixator, the end that described spring stretches out described first housing is connected with the zeroing handle by described spring fixator, the other end of described spring is fixed on the top of described second housing, described second housing can stretch out described first housing, be carved with scale on described second housing, described second housing stretches out the numerical value of described first housing for measuring numerical value, and described first housing has the outside of spring one end to be provided with hook, and described first housing and described 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-first housing; 2-second housing; The 3-spring; The 4-balancing controls; 41-spring fixator; The 42-handle that returns to zero; The 5-hook.
Embodiment
Embodiment: dynamometer, comprise the-housing 1, be arranged with second housing 2 in described first housing 1, be arranged with spring 3 in described second housing 2, one end of described first housing 1 is provided with balancing controls 4, described balancing controls 4 comprise spring fixator 41, the end that described spring 3 stretches out described first housing 1 is connected with zeroing handle 42 by described spring fixator 41, the other end of described spring 3 is fixed on the top of described second housing 2, described second housing 2 can stretch out described first housing 1, be carved with scale on described second housing 2, described second housing 2 stretches out the numerical value of described first housing 1 for measuring numerical value, described first housing 1 has the outside of spring one end to be provided with hook 5, and described first housing 1 and described second housing 2 all are transparent shell; Described spring fixator 41 is threaded with described spring 3, when zeroing is used, rotating described spring fixator 41 exposes outside described first housing 1 described second housing 2, zeroing handle 42 stretches, make zero graduation on described second housing 2 and the coincident of described first housing 1, rotating described spring fixator 41 gets final product to described first housing 1, the arranging of transparent shell can allow the clearer inner structure of seeing dynamometer of student, thereby the interaction to power produces stronger perceptual knowledge easily, reaches the purpose of classroom instruction.
Claims (1)
1. dynamometer, comprise first housing, be arranged with second housing in described first housing, be arranged with spring in described second housing, it is characterized in that: an end of described first housing is provided with balancing controls, described balancing controls comprise the spring fixator, the end that described spring stretches out described first housing is connected with the zeroing handle by described spring fixator, the other end of described spring is fixed on the top of described second housing, described second housing can stretch out described first housing, be carved with scale on described second housing, described second housing stretches out the numerical value of described first housing for measuring numerical value, described first housing has the outside of spring one end to be provided with hook, and described first housing and described second housing all are transparent shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320191708 CN203149950U (en) | 2013-04-05 | 2013-04-05 | Dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320191708 CN203149950U (en) | 2013-04-05 | 2013-04-05 | Dynamometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203149950U true CN203149950U (en) | 2013-08-21 |
Family
ID=48977460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320191708 Expired - Fee Related CN203149950U (en) | 2013-04-05 | 2013-04-05 | Dynamometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203149950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871624A (en) * | 2018-06-28 | 2018-11-23 | 深圳市贝优通新能源技术开发有限公司 | A kind of tension measuring appliance easy to use |
-
2013
- 2013-04-05 CN CN 201320191708 patent/CN203149950U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871624A (en) * | 2018-06-28 | 2018-11-23 | 深圳市贝优通新能源技术开发有限公司 | A kind of tension measuring appliance easy to use |
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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: 20130821 Termination date: 20140405 |