CN2215997Y - Multipurpose geometric figure templet - Google Patents
Multipurpose geometric figure templet Download PDFInfo
- Publication number
- CN2215997Y CN2215997Y CN 94224731 CN94224731U CN2215997Y CN 2215997 Y CN2215997 Y CN 2215997Y CN 94224731 CN94224731 CN 94224731 CN 94224731 U CN94224731 U CN 94224731U CN 2215997 Y CN2215997 Y CN 2215997Y
- Authority
- CN
- China
- Prior art keywords
- hole
- chart board
- circular
- coordinate system
- semiellipse
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a multipurpose geometric figure templet for teaching and drawing. A round through hole, a semi-elliptical through hole, an elliptical through hole and a trapezoid through hole are arranged on the multipurpose geometric figure templet. The elliptical hole is the horizontal placement figure of two oblique detecting shafts of the round hole. A rectangular coordinate system is arranged on the figure templet, and small through holes which can mark curve fixed points on paper arranged below the figure temple are densely distributed in the coordinate system. The graduation of the figure templet is accurate, the dimension and angle are strict, and various figures such as plane figures, tridimensional figures and analytic geometry figures can be drawn. The drawing is convenient and rapid, and the figure templet can also be used as a straight ruler, a curve ruler and a protractor. The translational motion, the rotation and the symmetry of the figure can be conducted conveniently.
Description
Described in the utility model is the multipurpose geometric chart board of a kind of teaching and drawing usefulness.
In the prior art, the design function of chart board is more single, and majority can only be used for plane geometric figure mapping usefulness, and the scope of application is limited to.Existing chart board is not easy to do translation, rotation and the symmetry of figure because its function is limit.Also there is the defective of low precision than outer existing chart board, thereby can only be used for the drafting of schematic diagram.
The purpose of this utility model is to provide a kind of plane, solid, the various figure mapping of analytic geometry function, Geometric drawing-board that precision is high of integrating.
The technical solution of the utility model is, the periphery that this chart board is provided with circle, ellipse and trapezoidal open-work, chart board has also to be provided with on length scale, the chart board on half elliptic open-work, the chart board and be not provided with rectangular coordinate system with above-mentioned each place of coincidence, hole, in the zone that rectangular coordinate system forms, the little open-work that has several to gather.The effect of these little open-works is on the paper that asking curve several points in coordinate system can be labeled under the chart board, finally connects and puts into line, and this song that draws easily on paper comes.
The periphery of circular through-hole indicate angle index and in connect the The Vertex Labeling of regular polygon, parting bead is arranged on the circular through-hole, a limit of parting bead is on the diameter line of this circular through-hole, uses so that this circular hole is made protractor.This circular through-hole be mainly used in picture circle, circle in connect the usefulness of regular polygon and angulation.
The ratio of semiellipse hole major and minor axis is 1.22:0.7, indicates reference axis reaches the inclination angle with reference axis oblique line at this semiellipse hole periphery, and it can be used for picture and is just waiting the rotary body of surveying axle.
The ratio of the major and minor axis of elliptical aperture is 1.07:0.33, it is rotated in the forward 7 ° 1 ', it is oblique two the surveying axle horizontals and place figure of circular through-hole on the chart board, its periphery indicates and corresponding scale of circular through-hole and label.This elliptical aperture cooperates with circular port can draw oblique two survey axle rotary bodies, positive multiple edge body, cylinder, can also accurately measure, draw dihedral angle.
At close above-mentioned semiellipse and elliptical aperture place, also be respectively equipped with a less semiellipse hole and an elliptical aperture on the chart board, they are identical with the ratio of corresponding semiellipse and ellipse long and short shaft, and wherein two semiellipse holes have same center, to reduce figure shared area on chart board.Above-mentioned figure matches and surveys and oblique two mappings so that draw positive two of round platform, terrace with edge etc.
A base angle of trapezoidal hole is 45 °, and the length scale unit on the waist adjacent with 45 is 1/2nd of base, and it can be used to the horizontal positioned figure of picture arbitrary graphic.
Little open-work on the chart board in the rectangular coordinate system be arranged in the crosspoint of the anyhow straight line that equidistantly distribute parallel with reference axis and anyhow the grid that forms of line in the heart.Indicate function curve diagrams such as index commonly used, logarithm, power, triangle in this rectangular coordinate system on the chart board, by little open-work fixed point line, arbitrary triangle in the plane geometry, square, rectangle, trapezoidal, parallelogram, rhombus draw on paper, also can draw parallel lines, the elementary function in the vertical line, cube, dihedral angle, analytic geometry, and can make translation, rotation and the symmetry of figure.
It is spline that a limit is arranged in the periphery of chart board, and another limit is sine curve, this sinusoidal reference axis of translation, and it also is a cosine curve simultaneously.
Multipurpose geometric chart board described in the utility model, circle, ellipse, trapezoidal and half elliptic open-work have been comprised, wherein circle, ellipse and semiellipse are corresponding mutually, rectangular coordinate system on the chart board and be distributed in little open-work in the coordinate system in addition, kind surplus the angle commonly used that marks on each hole and the coordinate system, length scale and the curve map, the plane that makes it to draw easily, solid, the various figures 80 of analytic geometry, it is convenient and swift to draw, can also make translation, rotation and the symmetry of figure easily, function is complete.In addition because each size of this chart board and angle are accurately strict, the precision height can strictly be distinguished just wait and survey axle and oblique two and survey a figure, accurately measures dihedral angle, draws horizontal positioned figure fast, makes graphical specification, accurate.The chart board periphery both can be made ruler usefulness, can make spline again and use.
The utility model has following accompanying drawing.
Fig. 1 is the utility model one example structure schematic diagram.
As shown, be placed with successively from right to left on the chart board: circular through-hole (1), semiellipse hole (4) and (7) and be arranged in semiellipse hole (4) and elliptical aperture (8) and (2), the rectangular coordinate system of (7) below and be distributed in the little open-work (5) of this coordinate system, trapezoidal open-work (3), the top of chart board, the left side are ruler, bottom is a spline, and the right is the sine curve in the trigonometric function.In indicating respectively, the periphery of circular through-hole (1) meets positive four, five, hexagonal The Vertex Labeling X, O, parting bead (6) is arranged on the circular through-hole (1), elliptical aperture (2) periphery also indicates corresponding label, it is 30 °, 60 ° oblique line that the periphery of semiellipse hole (4) and (7) indicates the inclination angle, can mark functional digraph commonly used in the rectangular coordinate system, as exponential function y=2
x, y=(1/2)
X, logarithmic function y=log
2X, y=log 1/2 X, power function y=X
2, trigonometric function y=sinX, y=cosX, y=tgX, y=ctgX figure.In the embodiment that this figure provides, the chart board peripheral size is 18 * 8, and it is made with transparent plastic, and thickness is 0.1, the circular through-hole diameter is 4, in semiellipse hole (4) and (7), big major axis is 4, and little major axis is 3, the major axis of big elliptical aperture (2) is 4.28, the major axis of little elliptical aperture (8) is 3.21, and the little open-work (5) in the rectangular coordinate system is 0.6 small sircle hole for diameter, and it is arranged in crosspoint that distance is 1 line anyhow and the grid in the heart (above long measure be centimetre).A base angle of trapezoidal hole (3) is 45 °.
Claims (9)
1, a kind of multipurpose geometric chart board, chart board is provided with circular through-hole (1), oval open-work (2) and trapezoidal open-work (3), the periphery of chart board has the length scale, it is characterized in that: also be provided with half elliptic open-work (4) on the chart board, be not provided with rectangular coordinate system on the chart board with above-mentioned each place of coincidence, hole, in the zone that rectangular coordinate system forms, the little open-work (5) that has several to gather.
2, chart board as claimed in claim 1, it is characterized in that: the periphery of circular through-hole (1) indicate angle index and in connect the The Vertex Labeling of regular polygon, parting bead (6) is arranged on the circular through-hole (1), and a limit of parting bead (6) is on the diameter line of this circular through-hole (1).
3, chart board as claimed in claim 1 is characterized in that: the ratio of semiellipse hole (4) major and minor axis is 1.22:0.7, indicates reference axis reaches the inclination angle with reference axis oblique line at this semiellipse hole (4) periphery.
4, chart board as claimed in claim 1, it is characterized in that: the ratio of the major and minor axis of elliptical aperture (2) is 1.07:0.33, it is rotated in the forward 7 ° 1 ', be that oblique two of circular through-hole on the chart board (1) is surveyed axle horizontals and placed figure, its periphery indicates and corresponding scale of circular through-hole (1) and label.
5, as claim 3 or 4 described chart boards, it is characterized in that: locating near above-mentioned semiellipse hole (4) and elliptical aperture (2), also be respectively equipped with a less semiellipse hole (1) and elliptical aperture (8) on the chart board, they are identical with the ratio of corresponding semiellipse hole (4) and elliptical aperture (2) major and minor axis, and wherein two semiellipse holes (4) and (7) have same center.
6, chart board as claimed in claim 1 is characterized in that: a base angle of trapezoidal hole (3) is 45 °, and the length scale unit on the waist adjacent with 45 is 1/2nd of base.
7, chart board as claimed in claim 1 is characterized in that: the little open-work (5) on the chart board in the rectangular coordinate system be arranged in the crosspoint of the anyhow straight line that equidistantly distribute parallel with reference axis and anyhow the grid that forms of line in the heart.
8, as claim 1 or 7 described chart boards, it is characterized in that: indicate function curve diagrams such as index commonly used, logarithm, power, triangle in the rectangular coordinate system on the chart board.
9, chart board as claimed in claim 1 is characterized in that: it is spline that a limit is arranged in the periphery of chart board, and another limit is a sine curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94224731 CN2215997Y (en) | 1994-07-27 | 1994-07-27 | Multipurpose geometric figure templet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94224731 CN2215997Y (en) | 1994-07-27 | 1994-07-27 | Multipurpose geometric figure templet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2215997Y true CN2215997Y (en) | 1995-12-27 |
Family
ID=33838062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94224731 Expired - Fee Related CN2215997Y (en) | 1994-07-27 | 1994-07-27 | Multipurpose geometric figure templet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2215997Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106585223A (en) * | 2016-12-19 | 2017-04-26 | 中国石油天然气股份有限公司 | Drawing board used for drawing pattern water flooding development well patterns |
-
1994
- 1994-07-27 CN CN 94224731 patent/CN2215997Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106585223A (en) * | 2016-12-19 | 2017-04-26 | 中国石油天然气股份有限公司 | Drawing board used for drawing pattern water flooding development well patterns |
| CN106585223B (en) * | 2016-12-19 | 2018-05-04 | 中国石油天然气股份有限公司 | For drawing the drawing board of pattern water flooding well pattern |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2215997Y (en) | Multipurpose geometric figure templet | |
| CN2905483Y (en) | Drawing board | |
| CN214449857U (en) | Multifunctional quick drawing rule | |
| CN115352210A (en) | Translational rotary quick drawing combined ruler | |
| CN2403088Y (en) | Multifunctional mathematics template for pupil | |
| CN200942658Y (en) | Multifunctional drawing rules | |
| CN203739491U (en) | Multifunctional drawing ruler | |
| CN211641614U (en) | Multipurpose drawing tool for mathematics | |
| CN2399227Y (en) | Drawing/calculating instrument | |
| CN2178188Y (en) | Multipurpose mathematical drawing board for middle school | |
| CN2265304Y (en) | Universal drawing and caculating instrument | |
| CN211054794U (en) | Angle measuring set square | |
| CN2454150Y (en) | Multifunction mathematics form-palte for students | |
| CN210941093U (en) | Multifunctional ruler | |
| CN218315988U (en) | Novel ruler | |
| CN102555618A (en) | Multifunctional drawing template | |
| CN211319479U (en) | Teacher's pointer | |
| CN221113310U (en) | Dedicated protractor of circumference halving | |
| CN217705301U (en) | Multifunctional drawing ruler | |
| CN2360277Y (en) | Drawing board for middle school student | |
| CN216245903U (en) | Multifunctional measuring scale | |
| CN201525222U (en) | Triangular board | |
| CN201169167Y (en) | Multifunctional drawing rule | |
| CN206959847U (en) | A kind of construction engineering cost field surveys device based on BIM technology | |
| CN206154976U (en) | From coordinate system student square chi of taking recess formula scale and complete set dot matrix |
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 |