CN203727059U - Multifunctional combined teaching aid - Google Patents
Multifunctional combined teaching aid Download PDFInfo
- Publication number
- CN203727059U CN203727059U CN201320828095.7U CN201320828095U CN203727059U CN 203727059 U CN203727059 U CN 203727059U CN 201320828095 U CN201320828095 U CN 201320828095U CN 203727059 U CN203727059 U CN 203727059U
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- CN
- China
- Prior art keywords
- ruler
- circular
- teaching aid
- angle
- diameter
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- 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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- Drawing Aids And Blackboards (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a multifunctional combined teaching aid. The multifunctional combined teaching aid is composed of four modified rulers, a circular plate and a plurality of screws and nuts, and is characterized in that a plurality of circular small holes with the same diameter are formed in the center line of each ruler at equal intervals, one end of the ruler 1 is provided with a sharp-corner foot with the angle of 45 degrees, one end of the ruler 2 is provided with a cylindrical chalk barrel, the diameter of the circular plate is equal to the width of each ruler, the center of the circular plate is provided with a circular small hole, the circular plate is provided with 36 angle index bisectrices, the diameter of each screw and nut is equal to that of each circular small hole, and the combined teaching aid can be formed in a connecting mode by inserting the screws and nuts into the circular small holes of the rulers and the circular small hole of the circular plate. The multifunctional combined teaching aid has the advantages that various teaching aids such as rulers, angle squares, compasses, protractors and set squares can be ingeniously combined, and the multifunctional combined teaching aid is very simple in structure, capable of being changed into various shapes, multifunctional, easy to disassemble or assemble, very convenient to use and carry and wide in application range.
Description
Technical field
The utility model relates to a kind of teaching device, relates in particular to a kind of Multifunctional math teaching aid.
Background technology
In teaching process, conventionally need to carry out the straightway that picture length is different or measure length with ruler, come the different circle of picture radius and camber line with compasses, carry out picture vertical line with set square, take measurement of an angle etc. with protractor, because the function of ruler, compasses, set square, protractor is all more single, in the time of graphing, need to change one by one or many are used in combination, just can draw the various different figures that require, use, carry very inconvenient, greatly reduce the efficiency of teaching.
In teaching process, sometimes also need to make and demonstrate out various figure with multiple different teaching aid, as straight line, angle, intersecting lens, parallel lines, difform triangle, difform quadrangle and verify their character, this just requires a great deal of time and energy removes the various teaching aid of designing and making, greatly increase the cost of teaching, very uneconomical.
Existing teaching aid, in general, simply constructed, function is less; More than function, structure is very complicated again, carries inconvenience.This Multifunctional combined teaching aids will solve this contradiction exactly, make every effort to accomplish both simple in structure, easy disassembling, easy to carry, also want diverse in function.
Utility model content
It is very simple that problem to be solved in the utility model is to provide a kind of structure, has various deformation, several functions, and both easily dismountings, easily assembling, is used, carries all teaching aid very easily again.It both can be used as teaching aid, also can be used as survey tool and drawing instrument.
For addressing the above problem, the technical scheme that the utility model adopts is: this Multifunctional combined teaching aids is by four rulers that change to some extent, a circular slab, multiple screw rods and nut composition, the width of each ruler is identical, length is roughly equal, on the center line of each ruler, there are multiple diameters identical, the circular aperture that spacing is equal, one end of ruler 1 is a wedge angle pin that becomes miter angle, one end of ruler 2 is a columniform chalk barrel, the diameter of circular slab is identical with the width of ruler, the circle centre position of circular slab is also a circular aperture and identical with the circular aperture diameter on ruler, the diameter of screw rod and nut is identical with the diameter of each circular aperture, a screw rod and a movable bolt of two nut compositions, the circular aperture place that inserts ruler and circular slab with multiple movable bolts can connect into a set of combined appliance for teaching.
Feature of the present utility model is: the movable bolt being made up of screw rod and nut makes the both easily dismountings of a whole set of teaching aid, easily assembles again; One end of ruler 1 and ruler 2 is respectively wedge angle pin and chalk barrel, after ruler 1 is connected with ruler 2 use bolts, just obtains width compasses; On each ruler, have multiple circular apertures, and the spacing of each circular aperture is equal, fast finds exactly the needed length of side of different graphic while being convenient to assemble teaching aid; The diameter of circular slab is identical with the width of ruler, is convenient to circular slab and ruler is used in conjunction with; After being connected with bolt with a circular slab, two rulers just obtain an argument chi; On ruler 1 and ruler 2, have longitudinal centre line, be both convenient to circular slab on angle index line be used in conjunction with, be convenient to again read different angles; Each ruler can rotate a certain angle arbitrarily around screw rod by circular aperture, and the multiple angle index lines on ruler and circular slab are used in conjunction with, and are easy to adjust the needed angle of different graphic.
A kind of concrete prioritization scheme is: on each ruler, have length graduation mark, can be used to picture straight line and measure length of straigh line; On circular slab, have 36 angle index bisectors, every portion represents 10
0, can be used to picture circle, draw angle, draw vertical line and take measurement of an angle, measure radian.
A kind of concrete prioritization scheme is: one end of ruler 1 is a wedge angle pin that becomes miter angle, is used for determining the center of circle; One end of ruler 2 is a cylindrical chalk barrel, and chalk is housed, and is used for picture circle and camber line; Ruler 1 is connected with ruler 2 use movable bolts, can be used to the different circle of picture radius, the camber line angle different with angle; Whether ruler 1, ruler 2 and circular slab 5 use movable bolts are connected, and can be used as angle square, be used for detecting vertical, also can be used to take measurement of an angle, radian, also can be used to the angle that demonstration varies in size.
Effect of the present utility model is that this cover combined appliance for teaching can be by ruler, angle square, compasses, protractor, the ingenious combination of the multiple teaching aid of set square, and structure is very simple, has various deformation, several functions, and easily dismounting, is used, carries all very convenient, of many uses.This cover combined appliance for teaching can be used as survey tool, drawing tools, also can be used as the presentation tool of mathematical education, can be used to demonstrate out various figure, as intersecting lens, parallel lines, angle and various difform triangle, quadrangle and verify their heterogeneity etc.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of a kind of Multifunctional teaching aid in the utility model embodiment, and wherein Reference numeral is respectively ruler 1, ruler 2, ruler 3, ruler 4, circular slab 5, wedge angle pin 6, chalk barrel 7, length graduation mark 8, angle index line 9, movable bolt 10, circular aperture 11, ruler center line 12.
Accompanying drawing 2 is the constitutional diagram of ruler 1 in the utility model embodiment, ruler 2 and circular slab 5.
Accompanying drawing 3 is the constitutional diagram of ruler 1 in the utility model embodiment, ruler 2 and ruler 3, circular slab 5.
Accompanying drawing 4 is the constitutional diagram of ruler 1 in the utility model embodiment, ruler 2, ruler 3, ruler 4.
Accompanying drawing 5 is the constitutional diagram of ruler 1 in the utility model embodiment, ruler 2, ruler 3, ruler 4 and circular slab 5.
Detailed description of the invention
As shown in Figure 1 and Figure 5, the utility model Multifunctional teaching aid, comprise that 4 have the ruler of multiple apertures, 1 foraminate circular slab in the center of circle and multiple movable bolt (screw rod and nut), being formed by connecting with the aperture place of movable bolt insertion ruler and circular slab, this overlaps teaching aid, require the size of each aperture identical, the diameter of circular slab is identical with the width of ruler.
As shown in Figure 2, one end of described ruler 1 and ruler 2 is respectively chalk barrel and the wedge angle pin that chalk is housed, and after with movable bolt, they being connected, can be used to the different circle of picture radius, the camber line angle different with angle; Can be used as angle square, whether vertically can be used to detect, also can be used to take measurement of an angle, radian; They and ruler 4 in conjunction with after, can be used to demonstrate angle and bisector thereof.
As shown in Figure 3, after described ruler 1, ruler 2 or ruler 4, circular slab 5 are connected with ruler 3 use movable bolts, can be used to demonstration, verify the character of leg-of-mutton stability and " leg-of-mutton both sides sum is greater than the 3rd limit "; Also can demonstrate various difform triangles by changing the length of side or angle, containing acute triangle, right angled triangle, obtuse triangle, isosceles triangle, equilateral triangle, scalene triangle; Also can be used to demonstrate the important line segment in triangle, containing leg-of-mutton angular bisector, center line, height, neutrality line.
As shown in Figure 4, after described ruler 1, ruler 2 or ruler 4 are connected with ruler 3 use movable bolts, can be used to demonstrate two straight lines and cut and form 8 angles by Article 3 straight line; Also can be used to demonstrate two straight line parallels, and the character of checking parallel lines: " two straight lines perpendicular to same straight line are parallel to each other ", " two straight lines that are parallel to same straight line are parallel to each other "; Also can be used to demonstrate two straight lines vertical, and the character of checking vertical line: " vertical line section is the shortest ".
As shown in Figure 5, after ruler 1, ruler 2, ruler 3, ruler 4 are connected with circular slab 5 use movable bolts, can be used to demonstration, verify tetragonal unstability, can also demonstrate various difform quadrangles by changing the length of side or angle, containing arbitrary quadrilateral, parallelogram, rectangle, rhombus, square, trapezoidal, isosceles trapezoid, right-angled trapezium, and verify the tetragonal character of various differences.
Claims (1)
1. a Multifunctional combined teaching aids, be characterised in that it is identical by the width of each ruler, length is roughly equal, on each ruler, there is length graduation mark (8), on the center line (12) of each ruler, there are multiple diameters identical, the circular aperture (11) that spacing is equal, one end of ruler (1) is a wedge angle pin (6) that becomes miter angle, one end of ruler (2) is a columniform chalk barrel (7), the diameter of circular slab (5) is identical with the width of ruler, the circle centre position of circular slab (5) is a circular aperture and identical with the each circular aperture diameter on ruler, on circular slab (5), there are 36 angle index bisectors (9), the diameter of screw rod and nut is identical with the diameter of each circular aperture (11), a screw rod and two nuts form movable bolts (10), insert the circular aperture (11) of ruler and circular slab locates to connect into a set of Multifunctional combined teaching aids with multiple movable bolts (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828095.7U CN203727059U (en) | 2013-12-09 | 2013-12-09 | Multifunctional combined teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828095.7U CN203727059U (en) | 2013-12-09 | 2013-12-09 | Multifunctional combined teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203727059U true CN203727059U (en) | 2014-07-23 |
Family
ID=51197162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320828095.7U Expired - Fee Related CN203727059U (en) | 2013-12-09 | 2013-12-09 | Multifunctional combined teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203727059U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106079980A (en) * | 2016-07-02 | 2016-11-09 | 深圳市中幼国际教育科技有限公司 | A kind of mathematics lift isosceles triangle drawing tools |
| CN109203788A (en) * | 2017-11-27 | 2019-01-15 | 张坤浪 | A kind of multiduty mathematics teaching aid |
-
2013
- 2013-12-09 CN CN201320828095.7U patent/CN203727059U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106079980A (en) * | 2016-07-02 | 2016-11-09 | 深圳市中幼国际教育科技有限公司 | A kind of mathematics lift isosceles triangle drawing tools |
| CN109203788A (en) * | 2017-11-27 | 2019-01-15 | 张坤浪 | A kind of multiduty mathematics teaching aid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20141209 |
|
| EXPY | Termination of patent right or utility model |