CN101388153A - Demonstration instrument for physical mathematics teaching - Google Patents
Demonstration instrument for physical mathematics teaching Download PDFInfo
- Publication number
- CN101388153A CN101388153A CNA200810157943XA CN200810157943A CN101388153A CN 101388153 A CN101388153 A CN 101388153A CN A200810157943X A CNA200810157943X A CN A200810157943XA CN 200810157943 A CN200810157943 A CN 200810157943A CN 101388153 A CN101388153 A CN 101388153A
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- dynamometer
- demonstration instrument
- backboard
- teaching
- annulus
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Abstract
The invention provides a physical mathematic demonstration instrument for teaching, wherein a suspension loop is arranged on the top of a backplane of the demonstration instrument for teaching, a dynamometer is arranged on the lower portion of the suspension loop, the lower end of the dynamometer is connected with a circular ring, an angulometer is fixed on the circular ring, the lower portion of the circular ring is connected with two bracing wires and a proofreading line, two arc slideways are arranged on the middle portion of the backplane, one end of a rotary graduated scale is fixed on the arc slideways through a retaining nut, and a graduated disc is arranged between the retaining nut and the arc slideways. The device is characterized in that the use is convenient, the structure is simple, the accuracy is high, and the like, the device enables students to validate the parallelogram of forces rule from experiments and enables bald theoretical knowledge to be easily comprehended and memorized, the device has better teaching demonstration effect, the backplane of the device is made of frosted glass materials, which is convenient for teachers to scribe and mark with chalks in explanation, and thereby the device has good extending and using value.
Description
1, technical field
The present invention relates to a kind of demonstration instrument for teaching, a kind of specifically demonstration instrument for physical mathematics teaching.
2, background technology
Need to learn this knowledge point of parallelogram of forces rule in the high school physics mathematical education course now, the student understands the difficulty of comparison when contacting this respect knowledge for the first time, there do not have corresponding demonstration equipment teacher to explain to be also very difficult, some teacher can oneself install a fairly simple demonstration instrument to students explanation demonstration, but bigger error can appear in such instrument, designs also to be unfavorable for the understanding that the student is correct under irrational situation and to grasp this knowledge point.
3, summary of the invention
The objective of the invention is to overcome above-mentioned shortcoming, provide a kind of equipment simple, easy to use, a kind of demonstration instrument for physical mathematics teaching that teaching demonstration is effective.
Technical scheme of the present invention realizes in the following manner, its structure is by dynamometer, annulus, protractor, backguy, cambered way, hold-down nut, dial disc, the rotation rule, backboard, supporting plate, check line and link constitute, the top of backboard is provided with link, the bottom of link is provided with dynamometer, the lower end of dynamometer is connected with annulus, be fixed with protractor on the annulus, the bottom of annulus is connected with two backguys and a check line, the lower end of backguy is provided with the traction counterweight, the middle part of backboard is provided with two cambered waies, one end of rotation rule is fixed on the cambered way by hold-down nut, is provided with dial disc between hold-down nut and the cambered way.
Backboard is selected the ground glass material for use, is set to supporting plate in the bottom of backboard.
Advantage of the present invention is:
(1), demonstrator of the present invention has easy to usely, simple in structure, the accuracy height can allow student's checking parallelogram of forces rule from experiment, uninteresting knowwhy is become be very easy to understand and memory, has teaching demonstration effect preferably.
(2), the backboard of this demonstrator selects for use the ground glass material to form, and makes things convenient for teacher's time standby drawing with coloured chalk wire tag of explanation on class.
(3), use in the process of this demonstrator the accuracy of pick-up unit voluntarily, overcome the possibility that error occurs.
4, description of drawings
Accompanying drawing is a kind of structural representation of mathematical education demonstrator;
Mark in the accompanying drawing is represented respectively;
5, embodiment
Below in conjunction with accompanying drawing a kind of mathematical education demonstrator of the present invention is done following detailed description the in detail.
As shown in drawings, a kind of mathematical education demonstrator of the present invention, its structure is by dynamometer 1, annulus 2, protractor 3, backguy 4, cambered way 5, hold-down nut 6, dial disc 7, rotation rule 8, backboard 9, supporting plate 10, check line 11 and link 12 constitute, the top of backboard 9 is provided with link 12, the bottom of link 12 is provided with dynamometer 1, the lower end of dynamometer 1 is connected with annulus 2, be fixed with protractor 3 on the annulus 2, the bottom of annulus 2 is connected with two backguys 4 and a check line 11, the lower end of backguy 4 is provided with traction counterweight 13, the middle part of backboard 9 is provided with two cambered waies 5, one end of rotation rule 8 is fixed on the cambered way 5 by hold-down nut 6, is provided with dial disc 7 between hold-down nut 6 and the cambered way 5.
The bottom of backboard 9 is set to supporting plate 10, the convenient article of placing.
Dial disc 7 is for being marked with the disk of 360 degree scale values.
Embodiment
Use the present invention to impart knowledge to students when using demonstrator, at first regulating the protractor 3 of hold-down nut 6 by top makes two backguys 4 form the angle of setting, hang up traction counterweight 13 then in the bottom of backguy 4, rotate rotation rule 8 and make rotation rule 8 parallel with backguy 4 by dial disc 7, cotton rope 4 and rotation rule 8 have promptly surrounded a parallelogram; Read with joint efforts and the size of component by the numerical value of dynamometer 1 and counterweight, measure the length of check line 11, the last length of on backboard 9, setting out Niu Li representative, according to make a concerted effort and component between angular relationship and the length of each power representative parallelogram that draws, can verify the parallelogram of forces rule.
A kind of its processing and fabricating of mathematical education demonstrator of the present invention is very simple and convenient, can process shown in the accompanying drawing to specifications.
Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.
Claims (2)
1, a kind of demonstration instrument for physical mathematics teaching, it is characterized in that by dynamometer, annulus, protractor, backguy, cambered way, hold-down nut, dial disc, the rotation rule, backboard, supporting plate, check line and link constitute, the top of backboard is provided with link, the bottom of link is provided with dynamometer, the lower end of dynamometer is connected with annulus, be fixed with protractor on the annulus, the bottom of annulus is connected with two backguys and a check line, the lower end of backguy is provided with the traction counterweight, the middle part of backboard is provided with two cambered waies, one end of rotation rule is fixed on the cambered way by hold-down nut, is provided with dial disc between hold-down nut and the cambered way.
2, demonstration instrument for physical mathematics teaching according to claim 1 is characterized in that the bottom of backboard is set to supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810157943XA CN101388153A (en) | 2008-10-20 | 2008-10-20 | Demonstration instrument for physical mathematics teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810157943XA CN101388153A (en) | 2008-10-20 | 2008-10-20 | Demonstration instrument for physical mathematics teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101388153A true CN101388153A (en) | 2009-03-18 |
Family
ID=40477549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810157943XA Pending CN101388153A (en) | 2008-10-20 | 2008-10-20 | Demonstration instrument for physical mathematics teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101388153A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012716A (en) * | 2010-11-18 | 2011-04-13 | 刘倬铭 | Multifunctional vector arithmetic unit |
| CN103824488A (en) * | 2014-03-25 | 2014-05-28 | 辽东学院 | Equivalent experiment table of planar concurrent force system |
| CN104575184A (en) * | 2014-12-24 | 2015-04-29 | 张潇月 | Experiment device for verifying parallelogram rule |
| CN108510846A (en) * | 2017-12-21 | 2018-09-07 | 张婉婷 | A kind of high school physics experiment of machanics simulator |
| CN110634362A (en) * | 2019-09-25 | 2019-12-31 | 黄河水利职业技术学院 | Teaching presentation device for engineering mechanics |
-
2008
- 2008-10-20 CN CNA200810157943XA patent/CN101388153A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012716A (en) * | 2010-11-18 | 2011-04-13 | 刘倬铭 | Multifunctional vector arithmetic unit |
| CN103824488A (en) * | 2014-03-25 | 2014-05-28 | 辽东学院 | Equivalent experiment table of planar concurrent force system |
| CN103824488B (en) * | 2014-03-25 | 2016-03-16 | 辽东学院 | The equivalent experiment platform of plane concurrent force system |
| CN104575184A (en) * | 2014-12-24 | 2015-04-29 | 张潇月 | Experiment device for verifying parallelogram rule |
| CN108510846A (en) * | 2017-12-21 | 2018-09-07 | 张婉婷 | A kind of high school physics experiment of machanics simulator |
| CN110634362A (en) * | 2019-09-25 | 2019-12-31 | 黄河水利职业技术学院 | Teaching presentation device for engineering mechanics |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090318 |