CN201804475U - Retractable lever ruler - Google Patents
Retractable lever ruler Download PDFInfo
- Publication number
- CN201804475U CN201804475U CN2010205086383U CN201020508638U CN201804475U CN 201804475 U CN201804475 U CN 201804475U CN 2010205086383 U CN2010205086383 U CN 2010205086383U CN 201020508638 U CN201020508638 U CN 201020508638U CN 201804475 U CN201804475 U CN 201804475U
- Authority
- CN
- China
- Prior art keywords
- rule
- graduated
- retractable lever
- graduated scale
- lever ruler
- 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
Links
- 239000000725 suspension Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
- Instructional Devices (AREA)
Abstract
The utility model belongs to the filed of appliances for physical experiments, in particular to a retractable lever ruler. The retractable lever ruler is characterized in that graduated scales A are inserted along the left side and the right side of tracks on a graduated scale B, the overlap parts between the graduated scales A and the graduated scale B can extend and retract freely, chutes arranged in the graduated scales A are matched with guide posts arranged on the graduated scale B, the other ends of the guide posts are provided with threads, the graduated scales A and the graduated scale B are fixed into a whole by nuts, and the middle of the upper end of the graduated scale B is provided with a lifting ring which is mounted on a bracket. The retractable lever ruler in the utility model has the advantage of simple structure. Besides, the retractable lever ruler is convenient to carry and use.
Description
Technical field: the utility model extendable lever chi belongs to Physical Experiment apparatus field, be specifically related to a kind of can the extendable lever chi.
Background technology: physics is the subject based on experiment, when the research lever equilibrium condition, needs to change the position of counterweight, repeatedly measure universal law, original lever chi length is fixing non-adjustable, and the experimental data that must get is limited, and the result of demonstration is inaccurate.
Summary of the invention: the purpose of this utility model provide a kind of can adjustment (adjusting) lever length, be easy to carry, experimental result is the extendable lever chi accurately.
The technical solution of the utility model is: a kind of extendable lever chi, form by three rules, it is characterized in that: the rule first is inserted along the track the right and left on the rule second, rule first and the folded mutually place of rule second retractable, the chute of establishing on the rule first cooperates with the guide pillar that rule second is provided with, the guide pillar other end is established screw thread, and by nut both is fixed in one, and it is rack-mount to be provided with suspension ring in the middle of the rule second upper end.
Since take technique scheme, during use, can be according to the requirement of experimental data, regulate the position of rule first on rule second, thereby determine the length of lever chi, must get different conclusions, this lever chi has simple in structure, is easy to carry advantage easy to use.
Description of drawings: come the technical solution of the utility model is described in further details below in conjunction with the drawings and specific embodiments.
Accompanying drawing is a structural representation of the present utility model.
Embodiment: with reference to the accompanying drawings.A kind of extendable lever chi, form by three rules, rule first 1 is inserted along 4 the right and lefts of the track on the rule second 2, rule first 1 and the folded mutually place of rule second 2 retractable, the chute of establishing on the rule first 13 cooperates with the guide pillar that rule second 2 is provided with, the guide pillar other end is established screw thread, and by nut 5 both is fixed in one, is provided with suspension ring 6 in the middle of rule second 2 upper ends and is installed on the support 7.
Claims (1)
1. extendable lever chi, form by three rules, it is characterized in that: rule first (1) is inserted along track (4) the right and left on the rule second (2), rule first (1) and the folded mutually place of rule second (2) retractable, the chute of establishing on the rule first (1) (3) cooperates with the guide pillar that rule second (2) is provided with, the guide pillar other end is established screw thread, and by nut (5) both is fixed in one, is provided with suspension ring (6) in the middle of rule second (2) upper end and is installed on the support (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205086383U CN201804475U (en) | 2010-08-24 | 2010-08-24 | Retractable lever ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205086383U CN201804475U (en) | 2010-08-24 | 2010-08-24 | Retractable lever ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201804475U true CN201804475U (en) | 2011-04-20 |
Family
ID=43873976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205086383U Expired - Fee Related CN201804475U (en) | 2010-08-24 | 2010-08-24 | Retractable lever ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201804475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847093A (en) * | 2018-07-20 | 2018-11-20 | 佛山科枫文化传播有限公司 | A kind of physics teaching inclined throw movements experimental demonstration device |
-
2010
- 2010-08-24 CN CN2010205086383U patent/CN201804475U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847093A (en) * | 2018-07-20 | 2018-11-20 | 佛山科枫文化传播有限公司 | A kind of physics teaching inclined throw movements experimental demonstration device |
| CN108847093B (en) * | 2018-07-20 | 2020-11-27 | 佛山科枫文化传播有限公司 | Physical teaching is with oblique throwing motion experiment presentation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202719926U (en) | a ruler | |
| CN204007457U (en) | Novel take turns to framework gap digital display surveying instrument | |
| CN201804475U (en) | Retractable lever ruler | |
| CN202361923U (en) | External diameter continuous measuring instrument | |
| CN204649285U (en) | A kind of balance for senior middle school's natural sciences experiment | |
| CN205334807U (en) | Artistic design teaching board of structure is measured to installation scale | |
| CN201721205U (en) | Compasses | |
| CN203123420U (en) | Adjustable type jumping height measurement device | |
| CN202795839U (en) | Experimental device capable of measuring Young modulus | |
| CN203464885U (en) | Simple repose angle measuring device | |
| CN205761301U (en) | A kind of test tube rack | |
| CN202761263U (en) | Neural response inspector | |
| CN206115808U (en) | Simple pendulum tester convenient to adjust | |
| CN206479105U (en) | Micrometer | |
| CN203176649U (en) | Support for inspection | |
| CN204342166U (en) | The rice counting wheel mechanism of lopping coating all-in-one | |
| CN204455215U (en) | A kind of pick part quenching stationary installation | |
| CN203720035U (en) | Digital elasticity modulus measuring device | |
| CN203385475U (en) | Pediatrics weighing scale | |
| CN102463800A (en) | Compass | |
| CN201845467U (en) | Ruler for measuring arm of force | |
| CN202853518U (en) | Spiral phase measuring instrument | |
| CN203529404U (en) | Discharging device for belt conveyor | |
| CN203610152U (en) | Horizontal adjustment device for experimental table | |
| CN202049647U (en) | Demonstrator for force arm of lever |
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: 20110420 Termination date: 20110824 |