CN102810274A - Teaching demonstration balance - Google Patents
Teaching demonstration balance Download PDFInfo
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- CN102810274A CN102810274A CN2012102731093A CN201210273109A CN102810274A CN 102810274 A CN102810274 A CN 102810274A CN 2012102731093 A CN2012102731093 A CN 2012102731093A CN 201210273109 A CN201210273109 A CN 201210273109A CN 102810274 A CN102810274 A CN 102810274A
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- balance
- support
- arm
- teaching demonstration
- students
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Abstract
The invention discloses a teaching demonstration balance which comprises weigh beams, weights, a balance arm, a nail, a support and a base. The support is connected with the base, first circular holes are reserved at the center of the top of the support and the center of the top of the balance arm, the nail penetrates the first circular holes to connect the support with the balance arm, the balance arm centering at the middle position is provided with second circular holes on the left and on the right, and the weigh beams penetrate through the second circular holes. The teaching demonstration balance in above structure is light in weight, low in cost, detachable, convenient to carry, large in demonstration range, applicable to computing demonstrations such as addition, subtraction, multiplication and division, beneficial to students to understand property of an equation and basic thought for equation solving, and capable of motivating mentality of students, activating creativity of the students, attracting attention of the students and cultivating independent elaborative faculty of the students.
Description
Technical field
The present invention relates to object weighing field, particularly relate to a kind of teaching demonstration balance.
Background technology
Balance mainly is to be used for weighed object physique quantitative analysis instrument, comprises balances miscellaneous such as counter balance, electronic balance, hydrostatic balance.When teacher imparted knowledge to students at ordinary times, visual illustration can excite student's mentality, inspired students'creative, attracted student's notice, cultivated student's independent thinking ability.With the balance teaching is example; According to lever principle physically; Peaceful can pass through the different conversion of arm of force length, the increase and decrease of counterweight quality and quantity, do on balance balance arm both sides add, subtract, the computing of multiplication and division; Understand the character of equality and the basic thought of solving an equation, let the student in sight, better acquire.But traditional balance is in order to guarantee that degree of accuracy is high, measure characteristics such as accurate that the quality of general balance is all very heavy, carries inconvenience, can't be used for teaching demonstration.
Summary of the invention
The technical matters that the present invention mainly solves provide a kind of can dismounting, teaching demonstration balance easy to carry.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of teaching demonstration balance is provided; Comprise sacle arm, counterweight, balance arm, nail, support and base; Said support is connected with said base, and said support top center position and said balance arm top center position comprise first circular hole, and said support passes first circular hole with said balance arm with said nail and is connected; On the said balance arm be that the center comprises second circular hole toward both sides, the left and right sides with the centre position, said sacle arm inserts in second circular hole on the said balance arm.
In preferred embodiment of the present invention, said teaching demonstration balance can be dismantled, and said teaching demonstration balance is made of paper.
In preferred embodiment of the present invention, said support inserts in the said base.
In preferred embodiment of the present invention, comprise scale on the said balance arm, said scale is zero point with the center.
In preferred embodiment of the present invention, the above second circular hole of said balance arm has six.
The invention has the beneficial effects as follows: teaching demonstration balance of the present invention, light weight, cost is low; Detachably, easy to carry, the range of demonstration is big; Applicable to add, subtract, the demonstration of the multiple computing of multiplication and division, conveniently understand the character of equality and the basic thought of solving an equation, excite student's mentality; Inspire students'creative, attract student's notice, cultivate student's independent thinking ability.
Description of drawings
Fig. 1 is the structural representation of teaching demonstration balance one preferred embodiment of the present invention;
The mark of each parts is following in the accompanying drawing: 1, sacle arm, 2, counterweight, 3, balance arm, 4, nail, 5, support, 6, base, 7, second through hole.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1; The present invention provides a kind of teaching demonstration balance; Comprise sacle arm 1, counterweight 2, balance arm 3, nail 4, support 5 and base 6; Said support 5 is connected with said base 6, and said support 5 top center positions and said balance arm 3 top center positions comprise first circular hole, and said support 5 passes first circular hole with the said nail 4 of said balance arm 3 usefulness and is connected; On the said balance arm 3 be that the center comprises second circular hole 7 toward both sides, the left and right sides, in second circular hole 7 that said sacle arm 1 inserts on the said balance arm 3 with the centre position.
Said teaching demonstration balance among the present invention can be dismantled, and said teaching demonstration balance is made of paper, and made of paper low, light weight.Comprise scale on the said balance arm 3, said scale is zero point with the center, and indicating scale can reading, can let the student take exercise to add, subtracts, the computing of multiplication and division.Said balance arm 3 the above second circular hole 7 can comprise a plurality of, for example have six, and the interval between said second circular hole 7 can be equidistant simultaneously, also can be not equidistant.
The assemble method of said teaching demonstration balance: said support 5 inserts in the said base 6; Said demonstration balance is if made of paper; Said support 5 can paste on the said base 6, and the center of said support 5 and said balance arm 3 is passed with said nail 4 and is connected, and said sacle arm 1 inserts in said second circular hole 7 as required; Add said counterweight 2 through calculating in said sacle arm 1 during demonstration, keep the balance of said demonstration balance.
The teaching demonstration balance that the present invention discloses, light weight, cost is low; Detachably, easy to carry, the range of demonstration is big; Applicable to add, subtract, the demonstration of the multiple computing of multiplication and division, conveniently understand the character of equality and the basic thought of solving an equation, excite student's mentality; Inspire students'creative, attract student's notice, cultivate student's independent thinking ability.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (5)
1. teaching demonstration balance; It is characterized in that, comprise sacle arm, counterweight, balance arm, nail, support and base, said support is connected with said base; Said support top center position and said balance arm top center position comprise first circular hole; Said support passes first circular hole with said balance arm with said nail and is connected, and on the said balance arm is that the center comprises second circular hole toward both sides, the left and right sides with the centre position, and said sacle arm inserts in second circular hole on the said balance arm.
2. teaching demonstration balance according to claim 1 is characterized in that, said teaching demonstration balance can be dismantled, and said teaching demonstration balance is made of paper.
3. teaching demonstration balance according to claim 1 is characterized in that said support inserts in the said base.
4. teaching demonstration balance according to claim 1 is characterized in that, comprises scale on the said balance arm, and said scale is zero point with the center.
5. teaching demonstration balance according to claim 1 is characterized in that, the above second circular hole of said balance arm has six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102731093A CN102810274A (en) | 2012-08-03 | 2012-08-03 | Teaching demonstration balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102731093A CN102810274A (en) | 2012-08-03 | 2012-08-03 | Teaching demonstration balance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102810274A true CN102810274A (en) | 2012-12-05 |
Family
ID=47233974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102731093A Pending CN102810274A (en) | 2012-08-03 | 2012-08-03 | Teaching demonstration balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102810274A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789725A (en) * | 2012-08-03 | 2012-11-21 | 昆山旭虹精密零组件有限公司 | Paper assembled balance |
| CN108020311A (en) * | 2017-12-29 | 2018-05-11 | 苏州市计量测试研究所 | Device for peeling is exempted from a kind of counterweight loading of electronic crane scale |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106220A (en) * | 1977-01-17 | 1978-08-15 | Hurd Deane E | Mathematical teaching aid |
| CN2321061Y (en) * | 1998-03-24 | 1999-05-26 | 徐万茂 | Simple machinery-lever experimental appliance |
| CN201518171U (en) * | 2009-09-27 | 2010-06-30 | 少年玩具企业有限公司 | Improved structure of teaching balance |
| CN202258044U (en) * | 2011-10-19 | 2012-05-30 | 宁波明森科教仪器有限公司 | Lever for teaching |
-
2012
- 2012-08-03 CN CN2012102731093A patent/CN102810274A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106220A (en) * | 1977-01-17 | 1978-08-15 | Hurd Deane E | Mathematical teaching aid |
| CN2321061Y (en) * | 1998-03-24 | 1999-05-26 | 徐万茂 | Simple machinery-lever experimental appliance |
| CN201518171U (en) * | 2009-09-27 | 2010-06-30 | 少年玩具企业有限公司 | Improved structure of teaching balance |
| CN202258044U (en) * | 2011-10-19 | 2012-05-30 | 宁波明森科教仪器有限公司 | Lever for teaching |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789725A (en) * | 2012-08-03 | 2012-11-21 | 昆山旭虹精密零组件有限公司 | Paper assembled balance |
| CN108020311A (en) * | 2017-12-29 | 2018-05-11 | 苏州市计量测试研究所 | Device for peeling is exempted from a kind of counterweight loading of electronic crane scale |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121205 |