CN2367476Y - Multiple-purpose combined ruler for students in middle school - Google Patents
Multiple-purpose combined ruler for students in middle school Download PDFInfo
- Publication number
- CN2367476Y CN2367476Y CN 99205331 CN99205331U CN2367476Y CN 2367476 Y CN2367476 Y CN 2367476Y CN 99205331 CN99205331 CN 99205331 CN 99205331 U CN99205331 U CN 99205331U CN 2367476 Y CN2367476 Y CN 2367476Y
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- CN
- China
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- coordinatometer
- chi
- chute
- middle school
- visual
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Abstract
The utility model discloses a multi-purpose combined ruler for middle school students, which is composed of two coordinatometers, two image rulers, two vernier numer-indicating rulers and a protractor. The coordinatometers and the image rulers are provided with chutes, the image rulers can move alont the coordinatometers through sliding bolts, and values on the coordinatometers can be read by the vernier numer-indicating rulers. The multi-purpose combined ruler can conveniently calculate and demonstrate triangles, trigonometric functions, and the Ohm's law of a partial circuit and a full circuit, so that students can visually understand definite abstract concepts, can deepen comprehension and memory, and can increase learning effect.
Description
The utility model belongs to drawing article, and particularly a kind of student uses ruler.
In, in primary school teaching and the study, Faculty and Students often will demonstration and some contents of aspects such as computational mathematics, physics, need be used alternatingly utensils such as ruler, set square, protractor, metering speed is slow, mistake appears easily, particularly directly perceived inadequately when some trigonometric function relations of demonstration and physical law, influence religion and the effect of learning.
The purpose of this utility model is to provide a kind of middle school student that can carry out many contents calculating such as mathematics, physics and demonstration quickly and easily to use combination ruler more.
The purpose of this utility model is realized by following technical scheme:
A kind of middle school student use combination ruler more, its special feature is: it is made up of coordinatometer 1, coordinatometer 2, visual chi 3, visual chi 4, vernier registration chi 5, vernier registration chi 6, one end of coordinatometer 1 and coordinatometer 2 overlaps fixing by central shaft 8, chute 9 and chute 10 are longitudinally arranged respectively on coordinatometer 1 and the coordinatometer 2, on the image chi 3 chute 11 is longitudinally arranged, slide bolt 12,13 passes respectively and passes chute 11 behind chute 9 and the chute 10 again and make coordinatometer 1, and coordinatometer 2 becomes to be slidingly connected respectively with the two ends of visual chi 3; One end of image chi 4 is fixed on the central shaft 8, and there is a vertical chute 14 in these chi central authorities, and slide bolt 15 passes chute 11 and chute 14 makes visual chi 3 and visual chi 4 for being slidingly connected; One end of vernier registration chi 5 and vernier registration chi 6 is fixed on slide bolt 15 places.
Above-mentioned middle school student use combination ruler more, and it also is added with a protractor 7, and described protractor 7 is fixed on the central shaft 8, and its initial point overlaps with the initial point of coordinatometer 1 and coordinatometer 2, and the bottom also overlaps with coordinatometer 2.
Above-mentioned middle school student use combination ruler more, and described chute 9 and chute 10 lay respectively at the outside of the graduation mark of coordinatometer 1 and coordinatometer 2.
Above-mentioned middle school student use combination ruler more, and described central shaft is that two halves coil component spring sheet is formed, and its top is the barrel-shaped spring pin of slightly larger in diameter.
Above-mentioned middle school student use combination ruler more, and dowel hole 16,17 is arranged respectively on described coordinatometer 1 and the coordinatometer 2, and dowel hole 18,19 is arranged on the protractor 7, are located by dowel hole 20,21.
Above-mentioned middle school student use combination ruler more, on described vernier registration chi 5 and the vernier registration chi 6 dowel hole 22,23 are arranged, and are located by dowel hole 24.
Adopt this manyly use combination ruler, can demonstrate and calculate the most contents in the plane geometry of middle school easily, can also demonstrate and Computational Physics levy in relation between the electric current, voltage, resistance of partial circuit and nearly all problem of whole circuit; The teacher uses this many teaching with combination ruler can make the student that the relation and the situation of change of some mathematics and physics are had understanding intuitively, can understand deeply some abstract concepts, and memory is firm, and this chi simple structure is easy to carry.
Below in conjunction with accompanying drawing the utility model is described in detail.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of central shaft;
Fig. 3 is the structure chart of coordinatometer 1;
Fig. 4 is the structure chart of coordinatometer 2;
Fig. 5 is the structure chart of visual chi 3;
Fig. 6 is the structure chart of visual chi 4;
Fig. 7 is the structure chart of vernier registration chi 5,6;
Fig. 8 is the structure chart of protractor.
As we can see from the figure, these are many to be a movable combination ruler with combination ruler, mainly is configured to coordinatometer 1, coordinatometer 2, visual chi 3, visual chi 4, vernier registration chi 5, vernier registration chi 6, protractor 7.Wherein coordinatometer 1, coordinatometer 2 and visual chi 3 can be formed the triangle of arbitrary shape, one end of coordinatometer 1 and coordinatometer 2 is fixed by middle chi axle 8, be leg-of-mutton both sides, image chi 3 is leg-of-mutton another side, being connected between the both sides of image chi 3 and coordinatometer is by slip nut 12,13 connect, at two coordinatometers and visual chi 3 upper edge scale directions chute 9 is arranged respectively, 10,11, slip nut 12 passes the chute 11 of coordinatometer 1 chute 9 and visual chi 3, slip nut 13 passes the chute 10 of coordinatometer 2 and the chute 11 of visual chi 3, and coordinatometer and visual chi 3 linked together, can make visual chi 3 along chute 9,10 move on coordinatometer, form the triangle of different shape.One end of image chi 4 is fixed on the central shaft 8, this image chi also has a long chute 14, slip nut 15 after passing the chute 14 of the chute 11 of visual chi 3 and visual chi 4 is contacted these two visual chis, slip nut 15 is the intersection point of this two visual chi, and this intersection point can move arbitrarily along two visual chis.One end of vernier registration chi 5,6 is fixed on slip nut 15 places of above-mentioned connection two visual chis 3,4, the other end is indicated the numerical value on the coordinatometer 1,2 respectively, also has a dowel hole 22,23 on the vernier registration chi 5,6, when indication numerical value, by alignment pin 24 that vernier registration chi 5,6 is fixing, make to be 90 degree right angles between them.Protractor 7 is also fixing by central shaft 8, the initial point of fixing back protractor 7 overlaps with the initial point of coordinatometer 1,2, the bottom of its bottom and coordinatometer 2 coincides, dowel hole 18,19 is arranged on protractor 7, they are corresponding with the dowel hole 16,17 on the coordinatometer 1,2, with alignment pin 20,21 with dowel hole 18,16 and 19,17 fixing respectively after, should be 90 degree right angles between coordinatometer 1 and the coordinatometer 2.The central shaft 8 of this chi is to be made of a spring catch, and this spring catch is made up of two semicircle spring leafs, and its top is the bigger cydariform of a diameter, is difficult for deviating from after above-mentioned each chi inserts this pin.
Being somebody's turn to do many is to use like this with combination ruler:
A. can form arbitrary triangle with coordinatometer 1,2 and visual chi 3, in order to the relation at demonstration triangle edges and angle.
C. demonstrate and calculating section circuit Ohm's law, coordinatometer 1 coordinatometer 2 is decided to be voltage and current respectively, image chi 4 is a resistance, when after having marked the voltage and current scale on coordinatometer 1 and the coordinatometer 2, can pass through vernier registration chi 5,6 find out the pairing resistance value of any voltage and current, this resistance value is the position at visual chi 4 places, identical resistance value is all represented in the arbitrfary point on the visual chi 4 at this moment, Faculty and Students can choose voltage or current value arbitrarily on coordinatometer 1 or coordinatometer 2, intersection point by vernier registration chi and visual chi 4 finds corresponding curtage value on another coordinatometer 2 or the coordinatometer 1, the result can see, when resistance value one regularly voltage (or electric current) increase along with the increase of electric current (or voltage), vice versa.By the reading on coordinatometer 1,2 and the visual chi 4, can calculate the partial circuit Ohm's law of I=U/R easily.
D. demonstrate whole circuit law of ohm, earlier electromotive force of source E and lowest high-current value Im are taken out at coordinatometer 1,2, static image chi 3 is in this 2 point, and visual chi 4 then slides, when image chi 4 levels off to coordinatometer 1, the dispatch from foreign news agency resistance of its representative increases, otherwise reduces, and can see by vernier registration chi 5,6, when the dispatch from foreign news agency resistance increases, the electric current of circuit reduces, and when the dispatch from foreign news agency resistance reduced, circuital current increased.The same with the partial circuit Ohm's law, resistance value to be fixed, promptly visual chi 4 fixed angle are seen by vernier registration chi 5,6, and electromotive force E increases, and electric current I increases, and electromotive force E reduces, and electric current I reduces.
Claims (6)
1. middle school student use combination ruler more, it is characterized in that: it is by coordinatometer [1], coordinatometer [2], image chi [3], image chi [4], vernier registration chi [5], vernier registration chi [6] is formed, one end of coordinatometer [1] and coordinatometer [2] is overlapped fixing by central shaft [8], chute [9] and chute [10] are longitudinally arranged respectively on coordinatometer [1] and the coordinatometer [2], on the image chi [3] chute [11] is longitudinally arranged, slide bolt [12], [13] pass respectively and pass chute [11] behind chute [9] and the chute [10] again and make coordinatometer [1], coordinatometer [2] becomes to be slidingly connected respectively with the two ends of visual chi [3]; One end of image chi [4] is fixed on the central shaft [8], and there is a vertical chute [14] in these chi central authorities, and slide bolt [15] passes chute [11] and chute [14] makes visual chi [3] and visual chi [4] for being slidingly connected; One end of vernier registration chi [5] and vernier registration chi [6] is fixed on slide bolt [15] and locates.
2. middle school student according to claim 1 use combination ruler more, it is characterized in that: it also is added with a protractor [7], described protractor [7] is fixed on the central shaft [8], and its initial point overlaps with the initial point of coordinatometer [1] and coordinatometer [2], and the bottom also overlaps with coordinatometer [2].
3. middle school student according to claim 2 use combination ruler more, it is characterized in that: described chute [9] and chute [10] lay respectively at the outside of the graduation mark of coordinatometer [1] and coordinatometer [2].
4. middle school student according to claim 3 use combination ruler more, it is characterized in that: described central shaft is that two halves coil component spring sheet is formed, and its top is the barrel-shaped spring pin of slightly larger in diameter.
5. middle school student according to claim 4 use combination ruler more, it is characterized in that: on described coordinatometer [1] and the coordinatometer [2] dowel hole [16], [17] are arranged respectively, dowel hole [18], [19] are arranged on the protractor [7].
6. middle school student according to claim 5 use combination ruler more, it is characterized in that: on described vernier registration chi [5] and the vernier registration chi [6] dowel hole [22], [23] are arranged, dowel hole [24] is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99205331 CN2367476Y (en) | 1999-03-24 | 1999-03-24 | Multiple-purpose combined ruler for students in middle school |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99205331 CN2367476Y (en) | 1999-03-24 | 1999-03-24 | Multiple-purpose combined ruler for students in middle school |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2367476Y true CN2367476Y (en) | 2000-03-08 |
Family
ID=33999915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99205331 Expired - Fee Related CN2367476Y (en) | 1999-03-24 | 1999-03-24 | Multiple-purpose combined ruler for students in middle school |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2367476Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837705A (en) * | 2010-04-16 | 2010-09-22 | 扬州大学 | Multifunctional angulometer |
| CN106643368A (en) * | 2016-12-23 | 2017-05-10 | 中国人民解放军第四军医大学 | Measurement device for door slot size of posterior cervical single-door expansive laminoplasty |
| CN106935117A (en) * | 2017-05-08 | 2017-07-07 | 王帆 | For the teaching aid of auxiliary direction electrophysics law teaching |
-
1999
- 1999-03-24 CN CN 99205331 patent/CN2367476Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837705A (en) * | 2010-04-16 | 2010-09-22 | 扬州大学 | Multifunctional angulometer |
| CN106643368A (en) * | 2016-12-23 | 2017-05-10 | 中国人民解放军第四军医大学 | Measurement device for door slot size of posterior cervical single-door expansive laminoplasty |
| CN106643368B (en) * | 2016-12-23 | 2018-05-04 | 中国人民解放军第四军医大学 | A kind of posterior cervical open-door laminoplasty Plastic operation crack between a door and its frame size measurement |
| CN106935117A (en) * | 2017-05-08 | 2017-07-07 | 王帆 | For the teaching aid of auxiliary direction electrophysics law teaching |
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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 |