CN2365729Y - Balance lever educational appliance - Google Patents
Balance lever educational appliance Download PDFInfo
- Publication number
- CN2365729Y CN2365729Y CN 99206820 CN99206820U CN2365729Y CN 2365729 Y CN2365729 Y CN 2365729Y CN 99206820 CN99206820 CN 99206820 CN 99206820 U CN99206820 U CN 99206820U CN 2365729 Y CN2365729 Y CN 2365729Y
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- CN
- China
- Prior art keywords
- balance
- lever
- balance lever
- utility
- pupils
- 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 balance lever type teaching aid, composed of a bottom plate, an upright post, a balance lever, etc. Through the demonstration operations of the simple mechanical teaching aid, pupils' abilities of using hands and brains can be cultivated. Based on understanding the equilibrium principle, the pupils can understand the lever principle and the problem of how to solve the equilibrium of objects so as to explore the solution of saving labor. The utility model, therefore, is suitable for pupils to receive the primary education of mechanical principles.
Description
The utility model relates to the Balance lever educational appliance that primary school education is used.
For adapting to the scientific and technological cause needs of fast development, cultivate many-sided knowledge talent, according to primary school nature education outline, the student who enters primary school six grades is just begun to carry out the experimental education of physical construction, with tap intellectual resources, allow the student understand secret how to remove to explore principle and the Nature, existing many in recent years teaching aids come out, but major part all is the static toy of simple building blocks form, a kind of by in conjunction with the understanding and the analysis of physical construction, carry out the learning aid of mechanical principle ushered-in education, be the problem that current urgent need solves.
Task of the present utility model proposes a kind ofly to allow the student move back and forth in person, to assemble and to observe with extremely simple Balance lever educational appliance exactly, makes the student obtain knowledge about lever and lever balance theory.
Task of the present utility model is finished with following technical proposal: include a base plate, fix a column on the base plate, column is provided with the balance stem that is linked to each other by bearing pin, and the both sides of balance stem are provided with a plurality of hook pulling eye grooves that place weight.
The utility model is by demonstration, dismounting, assembling to Balance lever educational appliance, in the process of starting, form the custom that beats one's brains, seek to solve the method for object balance, and then in conjunction with run in the daily life utilize lever principle design as exercises such as seesaws, the relation of analysis power and moment, understanding to reach problem such as laborsaving under what conditions, is the indispensable learning aid of pupil about the mechanics principle ushered-in education.
Accompanying drawing 1 has provided structural representation of the present utility model.
Specify in conjunction with the embodiment of above-mentioned accompanying drawing again the utility model.
As shown in Figure 1, Balance lever educational appliance includes a base plate (1), fixes a column (3) on the base plate, and column is provided with the balance stem (2) that is linked to each other by bearing pin (4), and the both sides of balance stem are provided with a plurality of hook pulling eye grooves (5) that place weight.When balance stem is connected when being in equilibrium state on the column, illustrate that the balance stem both sides are equal in weight, when balance stem was in non-equilibrium state, the end that can lift up on balance stem placed weight, till balance.Bearing pin connecting hole on the balance stem also can be made long slot bore, and the student can reach the balance purpose with shifting balance bar position.
Claims (1)
1. a Balance lever educational appliance is characterized in that including a base plate (1), fixes a column (3) on the base plate, and column is provided with the balance stem (2) that is linked to each other by bearing pin (4), and the both sides of balance stem are provided with a plurality of hook pulling eye grooves (5) that place weight.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 99206820 CN2365729Y (en) | 1999-04-01 | 1999-04-01 | Balance lever educational appliance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 99206820 CN2365729Y (en) | 1999-04-01 | 1999-04-01 | Balance lever educational appliance |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2365729Y true CN2365729Y (en) | 2000-02-23 |
Family
ID=34000990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 99206820 Expired - Fee Related CN2365729Y (en) | 1999-04-01 | 1999-04-01 | Balance lever educational appliance |
Country Status (1)
Country | Link |
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CN (1) | CN2365729Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105608964A (en) * | 2016-04-06 | 2016-05-25 | 王星竹 | Simple lever principle demonstration device for physical learning |
CN108510847A (en) * | 2018-04-09 | 2018-09-07 | 朱言哲 | A kind of high school student's lever used for physics learning aids |
CN110422006A (en) * | 2019-09-05 | 2019-11-08 | 李鑫 | A kind of lever imbalance formula rotating device |
-
1999
- 1999-04-01 CN CN 99206820 patent/CN2365729Y/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105608964A (en) * | 2016-04-06 | 2016-05-25 | 王星竹 | Simple lever principle demonstration device for physical learning |
CN108510847A (en) * | 2018-04-09 | 2018-09-07 | 朱言哲 | A kind of high school student's lever used for physics learning aids |
CN110422006A (en) * | 2019-09-05 | 2019-11-08 | 李鑫 | A kind of lever imbalance formula rotating device |
CN110422006B (en) * | 2019-09-05 | 2024-05-31 | 南京市飞运翔科技有限公司 | Unbalanced lever rotating device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |