CN103568664A - Three-ply teaching aid - Google Patents
Three-ply teaching aid Download PDFInfo
- Publication number
- CN103568664A CN103568664A CN201310568844.1A CN201310568844A CN103568664A CN 103568664 A CN103568664 A CN 103568664A CN 201310568844 A CN201310568844 A CN 201310568844A CN 103568664 A CN103568664 A CN 103568664A
- Authority
- CN
- China
- Prior art keywords
- teaching aid
- vertical pivot
- transverse axis
- side hypotenuse
- fixing glue
- 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.)
- Pending
Links
- 239000003292 glue Substances 0.000 claims abstract description 22
- 230000010354 integration Effects 0.000 abstract description 4
- 239000003973 paint Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention provides a three-ply teaching aid. The entire three-ply teaching aid is composed of a rotation shaft, a right inclined side, fixing glue, a left inclined side, a vertical shaft and a cross shaft, wherein angle degree scales are marked on the two inclined sides, the degree of a definite angle can be accurately measured by means of the design, integration of a plurality of independent drawing tools, such as a ruler, a triangular rule, a compass and a protractor, are delicately achieved, the number of shafts is reduced by sharing the same shaft, the entire set of drawing tools are integrated on a board, and the problem that a compass pin scratches a blackboard easily is solved. Meanwhile, the entire three-ply teaching aid is firm and simple in structure, is flexible and convenient to use, and can improve the efficiency of drawing pictures on the blackboard by a large margin.
Description
Technical field
The present invention relates to a kind of teaching aid, especially a kind of Multifunctional math teaching aid.
Background technology
Teaching and classmates learn and other design in, all to draw geometric figure diversified in specifications, required precision is different.The figure that free-hand drawing draws is not only lack of standardization but also not attractive in appearance, so for teacher, student and designer, draw the geometric graph of comparison standard, the drawing tools such as ruler, compasses are absolutely necessary.What current most of consumer used is all a set of traditional drawing tools, and this cover instrument generally comprises ruler, isosceles drawing square, has a pin is the drawing square of 60 degree, compasses, protractor.Each part of this kit is all independently, often paints a figure and will use this wherein several or even whole instrument simultaneously.Use like this this cover drawing tool to draw just very inconvenient.During picture, for convenient fixing, the fixing feet of general compasses bottom is provided with minute hand, when this pin easily scratches blackboard, also likely user is damaged.All drawing tools are integrated, and the fixing feet bottom minute hand of cancelling compasses has been to know together in the industry.Below the published technology to the improvement of teaching aid and the integration of mathematics drawing tools, as:
1, [title] Combined-type math teaching aid, [application number] CN200620099987.8, the patent documentation of [publication number] CN2876942 discloses a kind of Combined-type math teaching aid, the feature of this teaching aid is that stull is formed by connecting by some joint stulls, two of temple is sphenocephaly, on it, offer bolt hole, dispose bolt, nut, two of stull offers groove, groove upper and lower plates offers slotted eye, the two ends of perpendicular support are provided with bolt and have the nut matching with it, by several stulls, temple, perpendicular support is combined into the demonstration teaching aid of plane geometry and solid geometry.
2, [title] multipurpose mathematics teaching aid, [application number] CN201220032434.6, the patent documentation of [publication number] CN202413160U discloses a kind of multipurpose mathematics teaching aid, this teaching aid mainly comprises cross coordinatometer, it is characterized in that: the transverse axis of cross coordinatometer is provided with protractor, second half transverse axis relative with protractor is hinged by rotating shaft, cross coordinatometer longitudinal axis upper end is provided with locating shaft, locating shaft is provided with two rulers, longitudinal axis end at cross coordinatometer is provided with sucker, on the longitudinal axis of cross coordinatometer, be provided with chute, in chute, be provided with the chalk folder that can move along chute, the other end longitudinal axis relative with sucker on cross coordinatometer is provided with suppending hole.
3, [title] Mathematics teaching aid for students in middle school, [application number] CN201220115626.3, the patent documentation of [publication number] CN202495179U discloses a kind of Mathematics teaching aid for students in middle school, this teaching aid comprises the first bar rule, the second bar rule and the 3rd bar rule, on described the first bar rule, the second bar rule and the 3rd bar rule, be respectively provided with strip hole, in strip hole on described the first bar rule and the strip hole on the second bar rule, be provided with a first common fastener, in the strip hole that described the first fastener can be on described the first bar rule and the strip hole on the second bar rule, slide; In strip hole on strip hole on described the first bar rule and the 3rd bar rule, be provided with a second common fastener, in the strip hole that described the second fastener can be on described the first bar rule and the strip hole on the 3rd bar rule, slide; In strip hole on strip hole on described the second bar rule and the 3rd bar rule, be provided with a 3rd common fastener, in the strip hole that described the 3rd fastener can be on described the second bar rule and the strip hole on the 3rd bar rule, slide.
4, [title] a kind of Multifunctional math teaching aid, [patent No.] CN201220024001.6, the patent documentation of [publication number] CN202439439U discloses a kind of Multifunctional math teaching aid, this teaching aid is characterised in that: comprise protractor and ruler, described protractor is provided with angle index, described ruler is provided with length scale, the circle centre position of described protractor is provided with a fixing glue, one end and the fixing glue of described ruler are hinged, other one end of described ruler is provided with the compass foot of location use, on described ruler, be also hinged with a compass leg, the end of described compass leg is socketed with chalk.
Above-mentioned disclosed second and the 4th drawing tools all relates to be integrated existing independently drawing tools, and first and the 3rd drawing tools relate to existing freestanding drawing tools is improved.They remove to improve the overall performance of existing drawing tools from different angles.But these devices are unreasonable in mechanics design, and whole device is firm not, and this can cause the figure and the figure in ideal that draw to produce dimensionally larger gap.Secondly, the structure too complex of these devices, uses underaction convenient, is difficult to increase substantially the efficiency of drawing on blackboard.Therefore in the integration of drawing tools, also has very large space.How further to integrate these independently drawing tools, and it is simple in structure to make new drawing tools have, it is flexible, convenient to use, and can effectively improve the advantage of the drawing efficiency on blackboard, the problem of primary thinking while becoming design drawing instrument.
Summary of the invention
The invention provides a kind of three and close shape teaching aid, that installs is simple in structure, not only solved the problem that current needle of compasses easily scratches blackboard, easily user damaged, also solved and used general compasses on blackboard, to paint bowlder along with the chalk problem that radius of a circle diminishes gradually that shortens gradually.
The present invention three closes the whole device of shape teaching aid and is comprised of rotating shaft, right side hypotenuse, fixing glue, left side hypotenuse, vertical pivot, transverse axis; Wherein vertical pivot is vertical with transverse axis and intersect at fixing glue place; Vertical pivot and transverse axis, left side hypotenuse intersect and form an isosceles right triangle; Vertical pivot and transverse axis, right side hypotenuse intersect and form a right angled triangle, and it is 60 that transverse axis and right side hypotenuse intersect the angle forming
o; Fixing glue is fixed on one end of rotating shaft on the intersection point of vertical pivot and transverse axis, and rotating shaft can rotate freely around fixing glue; On right side hypotenuse, left side hypotenuse, vertical pivot, transverse axis, be carved with length scale; Angle index is also carved with in right side hypotenuse, left side hypotenuse inner side.
Described three to close shape teaching aid right side hypotenuse, left side hypotenuse, vertical pivot, four axles of transverse axis fixing, non-dismountable each other.After zero graduation line on vertical pivot extends, by the center of circle of fixing glue, left side hypotenuse and vertical pivot are crossing has not only formed one 45
oacute angle, also formed one 135
oobtuse angle.
The present invention three closes shape teaching aid, and angle index is marked on two hypotenuses, and such design can be measured the number of degrees of specified angle accurately, has realized cleverly the integration to multiple independent drawing tools such as ruler, set square, compasses, protractors.By common use same axle, when having reduced the number of axle, a whole set of drawing tool has been incorporated into again on a plate; The rotating shaft of drawing circle swing arm is arranged in the plane of multifunctional ruler, the fixedly stitch that replaces compasses by fixing glue, solved the problem that needle of compasses easily scratches blackboard, easily user damaged, such design has also solved uses general compasses on blackboard, to paint bowlder along with the chalk problem that radius of a circle diminishes gradually that shortens gradually.Simultaneously, sound construction of the present invention, by rationally utilizing each angle on teaching aid and rotating shaft, protractor etc. can draw the geometric graph less with ideal dimensions gap, simple in structure, use flexibly and easily, can increase substantially the efficiency of drawing on blackboard.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-rotating shaft, 2-right side hypotenuse, 3-fixing glue, 4-left side hypotenuse, 5-vertical pivot, 6-transverse axis, 7-length scale, 8-angle index.
The specific embodiment
The invention will be further described with reference to the accompanying drawings and in conjunction with the specific embodiment below.
As shown in Figure 1, the present invention three closes shape teaching aid, it is characterized in that whole device is comprised of rotating shaft 1, right side hypotenuse 2, fixing glue 3, left side hypotenuse 4, vertical pivot 5, transverse axis 6.Wherein vertical pivot 5 is vertical with transverse axis 6 and intersect at fixing glue 3 places, and vertical pivot 5 intersects and forms an isosceles right triangle with transverse axis 6, left side hypotenuse 4.Vertical pivot 5 intersects and forms a right angled triangle with transverse axis 6, right side hypotenuse 2, and in this triangle, transverse axis 6 is 60 with the crossing angle forming of right side hypotenuse 2
o, fixing glue 3 is fixed on one end of rotating shaft 1 on the intersection point of vertical pivot 5 and transverse axis 6, and rotating shaft 1 can rotate freely around fixing glue 3.On right side hypotenuse 2, left side hypotenuse 4, vertical pivot 5, transverse axis 6, be carved with length scale 7, angle index 8 is also carved with in right side hypotenuse 2, left side hypotenuse 4 inner sides.
Setting-out: first choose a kind of three and close shape teaching aid, choose a wherein arbitrary limit and, as template, just can make a line segment along this edge.
Draw right angled triangle, isosceles triangle, equilateral triangle: a kind of three to close that shape teaching aid divides by module be to be 60 by an isosceles right triangle and a base angle
oright angled triangle form.Whole teaching aid has 30
o, 45
o, 60
o, 90
o, 135
oangle, while drawing right angled triangle, isosceles triangle, equilateral triangle, as long as rationally utilize these angles having provided, be just easy to draw desired triangle.
Draw circle: first vertical pivot 5, the fixing glue 3 of transverse axis 6 intersections is set up and whole teaching aid is fixed on blackboard, and the rotating shaft 1 on teaching aid can be rotated freely along fixing glue 3; Secondly according to the length scale 7 on vertical pivot 5, at rotating shaft 1, mark and will paint radius of a circle; Finally, allowing whole teaching aid be close to blackboard presses on the punctuate of rotating shaft 1 and rotates a circle along rotating shaft 1 lower end with handgrip chalk.Realize the function of picture circle.
Angulation: be provided with angle index 8 in the right side of teaching aid hypotenuse 2, left side hypotenuse 4 inner sides, need only the summit at angle and the center superposition of fixing glue 3, just can read the angle at this angle.
In sum, it is simple that the present invention three closes shape teaching aid structure, use flexible, not only solved the problem that current needle of compasses easily scratches blackboard, easily user damaged, also solved and used general compasses on blackboard, to paint bowlder along with the chalk problem that radius of a circle diminishes gradually that shortens gradually, can significantly improve the drawing efficiency on blackboard.
Claims (4)
1. three close a shape teaching aid, it is characterized in that: whole device is comprised of rotating shaft (1), right side hypotenuse (2), fixing glue (3), left side hypotenuse (4), vertical pivot (5), transverse axis (6); Wherein vertical pivot (5) is vertical with transverse axis (6) and intersect at fixing glue (3) and locate; Vertical pivot (5) intersects and forms an isosceles right triangle with transverse axis (6), left side hypotenuse (4); Vertical pivot (5) intersects and forms a right angled triangle with transverse axis (6), right side hypotenuse (2), and it is 60 that transverse axis (6) intersects with right side hypotenuse (2) angle forming
o; Fixing glue (3) is fixed on one end of rotating shaft (1) on the intersection point of vertical pivot (5) and transverse axis (6), and rotating shaft (1) can rotate freely around fixing glue (3); On right side hypotenuse (2), left side hypotenuse (4), vertical pivot (5), transverse axis (6), be carved with length scale (7); Angle index (8) is also carved with in right side hypotenuse (2), left side hypotenuse (4) inner side.
2. according to claim 1 three close shape teaching aid, it is characterized in that: right side hypotenuse (2), left side hypotenuse (4), vertical pivot (5), (6) four axles of transverse axis are fixing, non-dismountable each other.
3. according to claim 1 three close shape teaching aid, it is characterized in that: after the zero graduation line on vertical pivot (5) extends, pass through the center of circle of fixing glue (3).
4. according to claim 1 and 2 three close shape teaching aid, it is characterized in that: left side hypotenuse (4) intersects and not only formed one 45 with vertical pivot (5)
oacute angle, also formed one 135
oobtuse angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568844.1A CN103568664A (en) | 2013-11-15 | 2013-11-15 | Three-ply teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568844.1A CN103568664A (en) | 2013-11-15 | 2013-11-15 | Three-ply teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103568664A true CN103568664A (en) | 2014-02-12 |
Family
ID=50041717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310568844.1A Pending CN103568664A (en) | 2013-11-15 | 2013-11-15 | Three-ply teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103568664A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1528473A (en) * | 1975-09-30 | 1978-10-11 | Ha Wing Kwan | Drawing instruments |
| CN2412757Y (en) * | 2000-01-03 | 2001-01-03 | 崔辉明 | Set square comdined protractor and compasses |
| CN202006675U (en) * | 2011-04-21 | 2011-10-12 | 郭瑞苓 | Mathematics teaching aid |
| CN102729704A (en) * | 2011-04-07 | 2012-10-17 | 杨利 | Multi-purpose ruler |
| CN202782372U (en) * | 2012-09-21 | 2013-03-13 | 鹤岗师范高等专科学校 | Multi-functional mathematical teaching ruler |
| CN203198514U (en) * | 2013-04-08 | 2013-09-18 | 李叶銮 | Teaching ruler |
| CN203681085U (en) * | 2013-11-15 | 2014-07-02 | 南丹县大厂镇中心小学 | Three-in-one shape teaching aid |
-
2013
- 2013-11-15 CN CN201310568844.1A patent/CN103568664A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1528473A (en) * | 1975-09-30 | 1978-10-11 | Ha Wing Kwan | Drawing instruments |
| CN2412757Y (en) * | 2000-01-03 | 2001-01-03 | 崔辉明 | Set square comdined protractor and compasses |
| CN102729704A (en) * | 2011-04-07 | 2012-10-17 | 杨利 | Multi-purpose ruler |
| CN202006675U (en) * | 2011-04-21 | 2011-10-12 | 郭瑞苓 | Mathematics teaching aid |
| CN202782372U (en) * | 2012-09-21 | 2013-03-13 | 鹤岗师范高等专科学校 | Multi-functional mathematical teaching ruler |
| CN203198514U (en) * | 2013-04-08 | 2013-09-18 | 李叶銮 | Teaching ruler |
| CN203681085U (en) * | 2013-11-15 | 2014-07-02 | 南丹县大厂镇中心小学 | Three-in-one shape teaching aid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203713333U (en) | Multifunctional mathematical teaching aid | |
| CN206551753U (en) | A kind of higher mathematics plotter | |
| CN203681085U (en) | Three-in-one shape teaching aid | |
| CN216101241U (en) | Combined stationery convenient to use | |
| CN203681084U (en) | Multifunctional ruler | |
| CN106864121A (en) | A kind of mathematical education teaching aid | |
| CN213768058U (en) | a drawing ruler | |
| CN206030882U (en) | Multifunctional ruler and compass for teaching purpose | |
| US9897427B2 (en) | Educational ruler | |
| CN203792969U (en) | Multifunctional compass for teaching | |
| CN201353959Y (en) | Multipurpose ruler | |
| CN201979923U (en) | Multi-purpose and intelligent straight ruler | |
| CN203485632U (en) | Portable drawing board | |
| KR20170115919A (en) | A magnet that contains yard tape | |
| CN202986540U (en) | Drawing tool dedicated to math classes | |
| CN212499648U (en) | Multifunctional teaching aid for mathematics teaching | |
| CN205416891U (en) | Mathematical teaching aid | |
| CN220147060U (en) | Mathematics integration multifunctional teaching ruler | |
| CN203100598U (en) | Multi-functional measuring tool | |
| CN204915026U (en) | How much multi -functional teaching aids | |
| CN201839967U (en) | Pencil box for elementary school mathematics | |
| CN203485638U (en) | Drawing tool for junior middle school mathematics teaching | |
| CN202753660U (en) | Ruler | |
| CN204641194U (en) | A kind of portable multi-function Geometric figure drawing apparatus | |
| CN2776700Y (en) | Multifunction gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20140212 |