CN202463336U - Multifunction teaching ruler and compass - Google Patents
Multifunction teaching ruler and compass Download PDFInfo
- Publication number
- CN202463336U CN202463336U CN2012200226199U CN201220022619U CN202463336U CN 202463336 U CN202463336 U CN 202463336U CN 2012200226199 U CN2012200226199 U CN 2012200226199U CN 201220022619 U CN201220022619 U CN 201220022619U CN 202463336 U CN202463336 U CN 202463336U
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- China
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- ruler
- ruler body
- hole
- bevel protractor
- compass
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Abstract
A multifunction teaching ruler and compass comprises an elongated ruler and compass body, an angle rotation mechanism, a bevel protractor and an arc drawing mechanism. A fixed sliding groove and a bevel protractor holding groove are correspondingly arranged on the back side of the ruler and compass body. One end of the ruler and compass body is provided with a fixing hole. The angle rotation mechanism comprises an angle dial, an angle indicating part and a rotating shaft with a blocking cap. The arc drawing mechanism comprises three pulleys, two sliding blocks, a sucker foot and a flexible line. Drawing can be done through the angle rotation mechanism placed on the ruler and compass body and through the bevel protractor. When a circle needs to be drawn, the sucker foot is inserted in a patchhole of one sliding block of the arc drawing mechanism, the sucker foot is sucked on a blackboard stably, a chalk is inserted in the patchhole of another sliding block, and then the circle can be drawn by taking the sucker foot as a center positioning pin. The multifunction teaching ruler and compass is convenient for teachers to draw, so that drawing time in class is saved.
Description
Technical field:
The utility model relates to teaching aid, particularly a kind of multifunctional teaching sector ruler and compass.
Background technology:
Traditional teaching drawing instrument, for example wooden compasses, set square and protractor bring inconvenience in mapping on the blackboard for the teacher: on blackboard during draw circles; Because traditional compasses centralized positioning pin is a steel nail; The conference damage blackboard of exerting oneself, the too small then center of exerting oneself wanders off easily, and the teacher needs a hand steered steady steel nail pin; Rotate compasses on the other hand and draw, the very inconvenient and certain skill of needs; When utilizing set square, protractor drafting angle, the teacher confirms angle through protractor after need utilizing set square to draw straight line earlier again, utilizing set square to draw another limit, so expends time in classroom.
Summary of the invention:
In view of this, be necessary the multifunctional teaching sector ruler and compass that provides a kind of teacher of convenience to draw.
A kind of multifunctional teaching sector ruler and compass comprises strip ruler body, angle rotating mechanism, bevel protractor and camber line drafting mechanism.Correspondence is provided with fixedly chute, bevel protractor accepting groove on the opposing face of ruler body; One end of ruler body is provided with the fixing vertical fixing hole and the bevel protractor accepting groove of fluting direction of chute, bevel protractor accepting groove and is communicated with fixing hole; One end of bevel protractor is provided with axis hole.The angle rotating mechanism comprises angle dial, angle indication piece and has the rotating shaft that stops cap; Rotating shaft penetrates and passes behind the axis hole that is placed on the bevel protractor in the bevel protractor accepting groove from the other end of the fixing hole of ruler body from fixing hole one end of ruler body and passes; The rotating shaft that passes passes behind the angle dial and angle indication piece relative fixed, with through the angle indication piece, stop that cap rotatably is fixed on rotating shaft on the ruler body.Camber line is drawn mechanism and is comprised three pulleys, two sliding shoes, sucker pin, flexible wires; Three pulleys are rotatably mounted to fixedly in the chute through screw, and three pulleys are located on the same line; One end of sliding shoe is provided with the patchhole that supplies the sucker pin to insert, and the other end of sliding shoe is provided with and can snaps in the interior and sliding part that in fixing chute, slide of fixing chute, also is provided with through hole on the sliding part; Flexible wires pass the through hole that snaps in the sliding part in the fixing chute and with the sliding part relative fixed, and be wrapped on three pulleys, to realize the center symmetrical expression motion of two sliding shoes.
Preferably; Multifunctional teaching sector ruler and compass also comprises indicating arm; The ruler body also is provided with the indicating arm accepting hole, and the indicating arm accepting hole is communicated with ruler body two ends, after indicating arm inserts in the indicating arm accepting hole; Rotating shaft stops an end of indicating arm, and the other end of indicating arm passes from the end away from the ruler body of rotating shaft.
Preferably; Multifunctional teaching sector ruler and compass also comprises the minor axis length keeper; The minor axis length keeper is a strip, and the minor axis length keeper is provided with the sliding tray of minor axis length keeper length direction, and an end of minor axis length keeper is arcuation and offers locating hole; Middle part on the face that fixedly chute, bevel protractor accepting groove are not set of ruler body be provided with the guiding groove consistent with minor axis length keeper width and with minor axis length keeper length, consistent accepting groove and the locating hole of width; The fluting direction of guiding groove and locating hole identical with the short direction of ruler body is positioned on the bottom land of guiding groove; One end of accepting groove is communicated with guiding groove, and the other end does not have an end of fixing hole to be communicated with the ruler body and accepting groove also is communicated with the face that offers the bevel protractor accepting groove; Screw in locating hole through screw, so that the minor axis length keeper rotatably is fixed on the ruler body with minor axis length keeper, ruler body.
Preferably, the end that bevel protractor is provided with axis hole also is provided with limiting section, and limiting section makes its anglec of rotation change at 0 degree to 90 degree through the butt with the ruler body.
When the teacher utilizes above-mentioned multifunctional teaching sector ruler and compass to draw; Angle rotating mechanism, bevel protractor through being arranged on the ruler body are drawn, that is the ruler body is as a limit at angle; Bevel protractor is as another limit at angle; During the rotation of square body, the angle of its rotation reflects through angle dial, the angle indication piece of angle rotating mechanism, so need not change the angle that set square, protractor just can be pointed out predetermined angular; When needing draw circles, the patchhole that camber line is drawn a sliding shoe in the mechanism inserts the sucker pin, and the stable suction of sucker pin is on blackboard, and the patchhole of another sliding shoe inserts pen, is that the centralized positioning pin is drawn out circle with the sucker pin so.So above-mentioned multifunctional teaching sector ruler and compass makes things convenient for the teacher to draw, and then has saved the drawing time on the classroom.
Description of drawings:
Accompanying drawing 1 is the structural representation of the multifunctional teaching sector ruler and compass of a preferred embodiments.
Accompanying drawing 2 is blast structural representations of multifunctional teaching sector ruler and compass among Fig. 1.
Accompanying drawing 3 is blast structural representations of another angle of multifunctional teaching sector ruler and compass among Fig. 1.
Among the figure: multifunctional teaching sector ruler and compass 10; Ruler body 20; Fixedly chute 21; Bevel protractor accepting groove 22; Fixing hole 23; Guiding groove 24; Accepting groove 25; Locating hole 26; Indicating arm accepting hole 27; Angle rotating mechanism 30; Angle dial 31; Angle indication piece 32; Rotating shaft 33; Stop cap 331; Bevel protractor 40; Axis hole 41; Camber line is drawn mechanism 50; Pulley 51; Sliding shoe 52; Patchhole 521; Sliding part 522; Through hole 523; Sucker pin 53; Flexible wires 54; Minor axis length keeper 60; Sliding tray 61; Indicating arm 70; Pen 90
The specific embodiment:
Please be simultaneously referring to like Fig. 1, Fig. 2 and Fig. 3, multifunctional teaching sector ruler and compass 10 comprises strip ruler body 20, angle rotating mechanism 30, bevel protractor 40, camber line drafting mechanism 50, minor axis length keeper 60, indicating arm 70.
Correspondence is provided with fixedly chute 21, bevel protractor accepting groove 22 on the opposing face of ruler body 20; One end of ruler body 20 is provided with the fixing vertical fixing hole 23 and the bevel protractor accepting groove 22 of fluting direction of chute 21, bevel protractor accepting groove 22 and is communicated with fixing hole 23.Middle part on the face that fixedly chute 21, bevel protractor accepting groove 22 are not set of ruler body 20 be provided with the guiding groove consistent 24 with minor axis length keeper 60 width and with minor axis length keeper 60 length, consistent accepting groove 25 and the locating hole 26 of width; The fluting direction of guiding groove 24 and locating hole 26 identical with the short direction of ruler body 20 is positioned on the bottom land of guiding groove 24; One end of accepting groove 25 is communicated with guiding groove 24, and the other end does not have an end of fixing hole 23 to be communicated with the ruler body and accepting groove 25 also is communicated with the face that offers bevel protractor accepting groove 25.Ruler body 20 also is provided with indicating arm accepting hole 27, and indicating arm accepting hole 27 is communicated with ruler body 20 two ends.
One end of bevel protractor 40 is provided with axis hole 41.
Angle rotating mechanism 30 comprises angle dial 31, angle indication piece 32 and has the rotating shaft 33 that stops cap 331; Rotating shaft 33 penetrates and passes axis hole 41 backs that are placed on the bevel protractor 40 in the bevel protractor accepting groove 22 and passes from the other end of the fixing hole 23 of ruler body 20 from fixing hole 23 1 ends of ruler body 20; The rotating shaft 33 that passes passes angle dial 31 back and angle indication piece 32 relative fixed, with through angle indication piece 32, stop that cap 331 rotatably is fixed on rotating shaft 33 on the ruler body 20.In this embodiment, the end that bevel protractor 40 is provided with axis hole 41 also is provided with limiting section 42, and limiting section 42 makes its anglec of rotation change at 0 degree to 90 degree through the butt with ruler body 20.
Camber line is drawn mechanism 50 and is comprised three pulleys 51, two sliding shoes 52, sucker pin 53, flexible wires 54; Three pulleys 51 are rotatably mounted to fixedly in the chute 21 through screw, and three pulleys 51 are located on the same line; One end of sliding shoe 52 is provided with the patchhole 521 that supplies sucker pin 53 to insert, and the other end of sliding shoe 52 is provided with and can snaps in the fixing chute 21 and the sliding part 522 of slip in fixing chute 21, also is provided with through hole 523 on the sliding part 522; Flexible wires 54 pass the through hole 523 that snaps in the sliding part 52 in the fixing chute 21 and with sliding part 52 relative fixed, and be wrapped on three pulleys 51, to realize the center symmetrical expression motion of two sliding shoes 52.Wherein, flexible wires 54 can be steel wire, nylon rope etc.
Indicating arm 70 inserts in the indicating arm accepting holes 27, and rotating shaft 33 stops an end of indicating arm 70, and the other end of indicating arm 70 passes from the end away from the ruler body 20 of rotating shaft 33.Extracting indicating arm 70 out back from indicating arm accepting hole 27 uses as teacher's pointer.In other embodiments, laser head and battery can be installed to constitute laser pointer in the indicating arm accepting hole 27.
Minor axis length keeper 60 is a strip; And minor axis length keeper 60 is provided with the sliding tray 61 of minor axis length keeper 60 length directions; One end of minor axis length keeper 60 is an arcuation; Screw in sliding tray 61, locating hole 26 through screw, so that minor axis length keeper 60 rotatably is fixed on the ruler body 20 with minor axis length keeper 60, ruler body 20.Because the motion of two sliding shoes 52 is the motion of center symmetrical expression; Be left and right focus promptly with two sliding shoes 52 that sucker pin 53 is installed; The length of deciding minor axis with minor axis length keeper 60; On the pen 90 pulley is set, it pacifies the drafting of accomplishing ellipse according to oval forming principle under the effect of being fixed in two flexible wires 54 on the sliding shoe 52.
When the teacher utilizes above-mentioned multifunctional teaching sector ruler and compass to draw; Angle rotating mechanism, bevel protractor through being arranged on the ruler body are drawn, that is the ruler body is as a limit at angle; Bevel protractor is as another limit at angle; During the rotation of square body, the angle of its rotation reflects through angle dial, the angle indication piece of angle rotating mechanism, so need not change the angle that set square, protractor just can be pointed out predetermined angular; When needing draw circles, the patchhole that camber line is drawn a sliding shoe in the mechanism inserts the sucker pin, and the stable suction of sucker pin is on blackboard, and the patchhole of another sliding shoe inserts pen, is that the centralized positioning pin is drawn out circle with the sucker pin so.So above-mentioned multifunctional teaching sector ruler and compass makes things convenient for the teacher to draw, and then has saved the drawing time on the classroom.
Claims (4)
1. a multifunctional teaching sector ruler and compass is characterized in that: comprise strip ruler body, angle rotating mechanism, bevel protractor and camber line drafting mechanism;
Correspondence is provided with fixedly chute, bevel protractor accepting groove on the opposing face of ruler body; One end of ruler body is provided with the fixing vertical fixing hole and the bevel protractor accepting groove of fluting direction of chute, bevel protractor accepting groove and is communicated with fixing hole; One end of bevel protractor is provided with axis hole;
The angle rotating mechanism comprises angle dial, angle indication piece and has the rotating shaft that stops cap; Rotating shaft penetrates and passes behind the axis hole that is placed on the bevel protractor in the bevel protractor accepting groove from the other end of the fixing hole of ruler body from fixing hole one end of ruler body and passes; The rotating shaft that passes passes behind the angle dial and angle indication piece relative fixed, with through the angle indication piece, stop that cap rotatably is fixed on rotating shaft on the ruler body;
Camber line is drawn mechanism and is comprised three pulleys, two sliding shoes, sucker pin, flexible wires; Three pulleys are rotatably mounted to fixedly in the chute through screw, and three pulleys are located on the same line; One end of sliding shoe is provided with the patchhole that supplies the sucker pin to insert, and the other end of sliding shoe is provided with and can snaps in the interior and sliding part that in fixing chute, slide of fixing chute, also is provided with through hole on the sliding part; Flexible wires pass the through hole that snaps in the sliding part in the fixing chute and with the sliding part relative fixed, and be wrapped on three pulleys, to realize the center symmetrical expression motion of two sliding shoes.
2. multifunctional teaching sector ruler and compass according to claim 1; It is characterized in that: multifunctional teaching sector ruler and compass also comprises indicating arm; The ruler body also is provided with the indicating arm accepting hole, and the indicating arm accepting hole is communicated with ruler body two ends, after indicating arm inserts in the indicating arm accepting hole; Rotating shaft stops an end of indicating arm, and the other end of indicating arm passes from the end away from the ruler body of rotating shaft.
3. multifunctional teaching sector ruler and compass according to claim 1; It is characterized in that: multifunctional teaching sector ruler and compass also comprises the minor axis length keeper; The minor axis length keeper is a strip; And the minor axis length keeper is provided with the sliding tray of minor axis length keeper length direction, and an end of minor axis length keeper is arcuation and offers locating hole; Middle part on the face that fixedly chute, bevel protractor accepting groove are not set of ruler body be provided with the guiding groove consistent with minor axis length keeper width and with minor axis length keeper length, consistent accepting groove and the locating hole of width; The fluting direction of guiding groove and locating hole identical with the short direction of ruler body is positioned on the bottom land of guiding groove; One end of accepting groove is communicated with guiding groove, and the other end does not have an end of fixing hole to be communicated with the ruler body and accepting groove also is communicated with the face that offers the bevel protractor accepting groove; Screw in locating hole through screw, so that the minor axis length keeper rotatably is fixed on the ruler body with minor axis length keeper, ruler body.
4. multifunctional teaching sector ruler and compass according to claim 1 is characterized in that: the end that bevel protractor is provided with axis hole also is provided with limiting section, and limiting section makes its anglec of rotation change at 0 degree to 90 degree through the butt with the ruler body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200226199U CN202463336U (en) | 2012-01-18 | 2012-01-18 | Multifunction teaching ruler and compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200226199U CN202463336U (en) | 2012-01-18 | 2012-01-18 | Multifunction teaching ruler and compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202463336U true CN202463336U (en) | 2012-10-03 |
Family
ID=46911524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200226199U Expired - Fee Related CN202463336U (en) | 2012-01-18 | 2012-01-18 | Multifunction teaching ruler and compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202463336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213428A (en) * | 2012-01-18 | 2013-07-24 | 宁夏大学 | Multifunctional teaching ruler and compass |
-
2012
- 2012-01-18 CN CN2012200226199U patent/CN202463336U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213428A (en) * | 2012-01-18 | 2013-07-24 | 宁夏大学 | Multifunctional teaching ruler and compass |
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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: 20121003 Termination date: 20130118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |