CN202826875U - Ruler and compass unit - Google Patents
Ruler and compass unit Download PDFInfo
- Publication number
- CN202826875U CN202826875U CN 201220454663 CN201220454663U CN202826875U CN 202826875 U CN202826875 U CN 202826875U CN 201220454663 CN201220454663 CN 201220454663 CN 201220454663 U CN201220454663 U CN 201220454663U CN 202826875 U CN202826875 U CN 202826875U
- Authority
- CN
- China
- Prior art keywords
- ruler
- protractor
- scale
- moving scale
- movable
- 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
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a ruler and compass unit which is formed by a protractor, a straight scale, a fixed ruler and a movable ruler. The length and the width of the straight scale, the fixed ruler and the movable ruler are equal. One ends of the fixed ruler and the movable ruler are closed angles. Sliding rails are respectively arranged at the centers of the straight scale and the movable ruler. The protractor is hinged with one non-closed angle ends of the fixed ruler and the movable ruler in sequence at the circle center of the protractor. A closed-angle end of the fixed ruler is hinged with an arbitrary end of the straight scale. The straight scale intersects with the movable ruler at the upper position. The straight scale is movably connected with the movable ruler through a locating sliding block arranged in the sliding rails of the straight scale and the movable ruler. The ruler and compass unit is simple in structure and convenient to use, has three functions of the straight ruler, a pair of compasses and the protractor, can be used for fast and conveniently drawing accurate angles and circles, and is particularly suitable for being used as a mathematics tool and a tool for students.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly a kind of teaching aid that is used for ruler, compasses and protractor.
Background technology
In mathematical education in teaching aid commonly used and student utensil commonly used, common are three of ruler, compasses and protractors, because three utensils commonly used do not combine, angle or circle are more difficult accurately to draw one.Therefore, be necessary to develop a comprehensive utensil with ruler, compasses and protractor three large functions.
Summary of the invention
The utility model has overcome the deficiency that prior art exists, and a kind of simple in structure, easy to use, ruler-compasse device with ruler, compasses and protractor three large functions is provided
.
Ruler-compasse device of the present utility model, protractor, ruler, set pattern chi, moving scale, consist of, described ruler, set pattern chi and moving scale three are isometric, wide, are equipped with scale, one end of described set pattern chi and moving scale is wedge angle, and the central authorities of described ruler and moving scale are provided with slide rail.Circle centre position at protractor, protractor is hinged with the non-closed angle end of set pattern chi and moving scale successively, the closed angle end of set pattern chi and any end of ruler are hinged, and ruler intersects at upper and moving scale, and the positioning sliding block in the slide rail of ruler and moving scale is flexibly connected ruler and moving scale.
When ruler-compasse device of the present utility model closes up, be an end and the protractor connection status of ruler, now, there is the effect of ruler.When the painting folder linea angulata, open ruler-compasse device, the set pattern chi of take is horizontal line, mobile moving scale, to required angle, just draws angle accurately.When drawing bowlder, open ruler-compasse device, the closed angle end of set pattern chi of take is the center of circle, find the radius of circle scale on ruler, on running fix slide block and ruler, the radius scale is overlapping, and makes ruler in level, rotate ruler-compasse device, the wedge angle of moving scale just can draw round accurately.
Ruler-compasse device of the present utility model is simple in structure, easy to use, has ruler, compasses and the large function of protractor three, can draw quickly and easily angle and circle accurately.Suitablely especially as mathematics teaching aid and student, use utensil.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model while closing up.
In figure: 1, protractor, 2, ruler, 3, the set pattern chi, 4, moving scale, 5, scale, 6, wedge angle, 7, slide rail, 8, the center of circle, 9, positioning sliding block.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of ruler-compasse device, as shown in Figure 1, consist of protractor 1, ruler 2, set pattern chi 3, moving scale 4.Ruler 2, set pattern chi 3 and moving scale 4 threes are isometric, wide, are equipped with scale 5, and an end of set pattern chi 3 and moving scale 4 is wedge angle 6, and the central authorities of ruler 2 and moving scale 4 are provided with slide rail 7.Protractor 1 in the center of circle 8 places hinged with the non-closed angle end of set pattern chi 3 and moving scale 4 successively, wedge angle 6 ends of set pattern chi 3 are hinged with any end of ruler 2, ruler 2 intersects at upper and moving scale 4, by positioning sliding block 9 by ruler 2 and 4 flexible connections of moving scale.As shown in Figure 2, when ruler-compasse device of the present utility model closes up, be an end and protractor 1 connection status of ruler 2.
When drawing straight line, ruler-compasse device close up the effect that state just has ruler.When the painting folder linea angulata, open ruler-compasse device, the set pattern chi 3 of take is horizontal line, mobile moving scale 4, to required angle, just draws angle accurately.When drawing bowlder, open ruler-compasse device, wedge angle 6 ends of set pattern chi 3 of take are the center of circle, find the radius of circle scale on ruler 2, on running fix slide block 9 and ruler 2, the radius scale is overlapping, and makes ruler 2 in level, rotate ruler-compasse device, the wedge angle 6 of moving scale 4 just can draw round accurately.
After finishing using, ruler-compasse device is closed up to as Fig. 2 state.
Claims (1)
1. a ruler-compasse device, it is characterized in that by protractor (1), ruler (2), set pattern chi (3), moving scale (4) forms, described ruler (2), set pattern chi (3) and moving scale (4) three are isometric, wide, be equipped with scale (5), one end of described set pattern chi (3) and moving scale (4) is wedge angle (6), the central authorities of described ruler (2) and moving scale (4) are provided with slide rail (7), the center of circle (8) in protractor (1) is located, protractor (1) is hinged with the non-closed angle end of set pattern chi (3) and moving scale (4) successively, wedge angle (6) end of set pattern chi (3) is hinged with any end of ruler (2), ruler (2) intersects at upper and moving scale (4), positioning sliding block (9) in the slide rail (7) of ruler (2) and moving scale (4) is flexibly connected ruler (2) and moving scale (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220454663 CN202826875U (en) | 2012-09-08 | 2012-09-08 | Ruler and compass unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220454663 CN202826875U (en) | 2012-09-08 | 2012-09-08 | Ruler and compass unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202826875U true CN202826875U (en) | 2013-03-27 |
Family
ID=47938649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220454663 Expired - Fee Related CN202826875U (en) | 2012-09-08 | 2012-09-08 | Ruler and compass unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202826875U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773014A (en) * | 2015-03-09 | 2015-07-15 | 张强 | Combined ruler for mathematics teaching |
| CN105270049A (en) * | 2015-03-18 | 2016-01-27 | 史瑞霞 | Telescopic combined teaching tool |
| CN107696755A (en) * | 2016-08-09 | 2018-02-16 | 吕可山 | A kind of collapsible drawing tools |
-
2012
- 2012-09-08 CN CN 201220454663 patent/CN202826875U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773014A (en) * | 2015-03-09 | 2015-07-15 | 张强 | Combined ruler for mathematics teaching |
| CN105270049A (en) * | 2015-03-18 | 2016-01-27 | 史瑞霞 | Telescopic combined teaching tool |
| CN107696755A (en) * | 2016-08-09 | 2018-02-16 | 吕可山 | A kind of collapsible drawing tools |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204263784U (en) | A kind of Multifunctional math teaching aid | |
| CN202826875U (en) | Ruler and compass unit | |
| CN201979940U (en) | Drawing ruler used by mathematics teachers | |
| CN204354675U (en) | A kind of multifunctional teaching gauge | |
| CN203611603U (en) | Mathematic drawing and measuring multipurpose ruler | |
| CN202242608U (en) | Mathematics teaching aid | |
| CN202264552U (en) | Mathematics teaching ruler | |
| CN202293928U (en) | Mathematics teaching template | |
| CN203780157U (en) | Multi-purpose ruler for mathematics | |
| CN202862935U (en) | Mathematical combination rule | |
| CN202498906U (en) | Ruler | |
| CN203511080U (en) | Portable teaching aid used for drawing angle on blackboard accurately | |
| CN202608354U (en) | Multifunctional folding ruler | |
| CN201936493U (en) | Instrument for demonstrating angle and side relation of right triangle | |
| CN203110681U (en) | Ruler for elementary school mathematics teaching | |
| CN204160956U (en) | A kind of multifunctional triangle | |
| CN203937396U (en) | A kind of teaching aid of drawing oval arc angle line | |
| CN203681085U (en) | Three-in-one shape teaching aid | |
| CN202225636U (en) | Gauge combination | |
| CN108068508A (en) | A kind of multifunctional assembled teaching aid | |
| CN210570299U (en) | Mathematics teaching demonstration ware | |
| CN203172265U (en) | Multifunctional ruler for university mathematics teaching | |
| CN202685691U (en) | Mathematical angle metering ruler | |
| CN202517940U (en) | Compasses | |
| CN202445340U (en) | Primary mathematics learning tool box device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20130908 |