CN202923227U - Multifunctional mathematical drawing rule - Google Patents
Multifunctional mathematical drawing rule Download PDFInfo
- Publication number
- CN202923227U CN202923227U CN 201220651471 CN201220651471U CN202923227U CN 202923227 U CN202923227 U CN 202923227U CN 201220651471 CN201220651471 CN 201220651471 CN 201220651471 U CN201220651471 U CN 201220651471U CN 202923227 U CN202923227 U CN 202923227U
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- CN
- China
- Prior art keywords
- rule
- protractor
- main scale
- groove
- handle
- 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
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Abstract
The utility model relates to a multifunctional mathematical drawing rule, and mainly aims at providing a mathematical drawing teaching aid which is used by mathematical teachers and integrates multiple functions. The multifunctional mathematical drawing rule is characterized in that the top end of a main rule is connected with a protractor, and a central position of the protractor is hinged with an auxiliary rule; one end of the auxiliary rule is provided with a pointer; the main rule is provided with a rectangular slide groove, an elliptical separation blade which can slide in the groove is arranged inside the slide groove, and the elliptical separation blade is connected with a movable rule with a plurality of circular through holes through a hollow rivet; the right side of the main rule is provided with a hanging plate, the main rule is provided with a handle and a hanging hole, a clamping groove for fixing a conical head is arranged above the handle, and the central hole of the hollow rivet is connected with an insert end of the conical head in a threading way; and the bottom end of the movable rule is of wavy shape. The multifunctional mathematical drawing rule is good in practicability, capable of drawing different geometric figures and convenient to carry and use.
Description
Technical field
The utility model relates to a kind of drawing teaching aid, specifically, relates to the impart knowledge to students assistant teaching aid of use of a kind of mathematics teacher.
Background technology
At present, in the work of mathematical education, for the principle of ecclesiology physiology solution and computational geometry drawing, drawing instrument becomes the requisite instrument of attending class of mathematics teacher, and the teacher can carry the drawing instruments such as ruler, set square, compasses and protractor usually.Consequent problem is: traditional teaching aid for drawing is all independently, is inconvenient to carry, and often needs several instruments to be used in conjunction with when graphing, carries and uses all very inconvenient.Therefore, a kind of teaching aid for drawing that integrates functions as one of design is the present technical issues that need to address.
Summary of the invention
The prior art problem that proposes in order to solve background technology, the utility model provides a kind of Multi-functional drawing rule for mathematics, and the teacher can draw wave and circle according to using needs to draw various geometric figures, can also measurement size and angle.
The technical solution of the utility model is: plant Multi-functional drawing rule for mathematics, comprise main scale, its unique distinction is: the top of described main scale is connected with protractor, is hinged with secondary chi at the home position of described protractor; One end of described secondary chi is provided with pointer; Have rectangular chute on described main scale, chute is built-in with an oval catch that can slide in groove, connect one with the attachable mechanical stage of several manholes by tubular rivet on described oval catch; There is link plate on described main scale right side, and handle and hanging hole are arranged on it, and described handle top is provided with for fixing cone headed draw-in groove, the centre bore of described tubular rivet with cone headed insertion end for being threaded; Described attachable mechanical stage bottom is the wave shape.In addition, for the ease of drawing bowlder fixing center of circle on blackboard, can be so that the form of sucker be adopted in cone headed bottom.
The utlity model has following beneficial effect: this kind Multi-functional drawing rule for mathematics, can take measurement of an angle and size, nose cone can be inserted in the tubular rivet centre bore, put into chalk in the manhole of attachable mechanical stage, with nose cone in the blackboard center of circle of fixing a point, pin handle, chi in rotary moving gets final product the picture circle, attachable mechanical stage one end can be drawn wave, and protractor coordinates with secondary chi, can draw various plane geometric figures, with attachable mechanical stage parallel sliding in chute, can speed draw parallel lines, this kind drawing rule gathers multi-function in integral whole, and is easy to carry and use.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation that the chute of main scale described in the utility model is combined with oval catch.
Fig. 3 is cone headed structural representation described in the utility model.
1-main scale in figure, 2-protractor, the secondary chi of 3-, 4-pointer, 5-chute, the oval catch of 6-, 7-tubular rivet, 8-manhole, 9-attachable mechanical stage, 10-nose cone, 11-link plate, 12-handle, 13-hanging hole, 14-draw-in groove, 15-nose cone fixing sucking disk.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By illustrated in figures 1 and 2, this kind Multi-functional drawing rule for mathematics comprises main scale 1, and described main scale 1 top is connected with protractor 2 one ends, is hinged on secondary chi 3 centers at described protractor 2 home positions by prominent axle, and secondary chi 3 one ends are provided with pointer 4; Described main scale 1 is provided with the chute 5 of rectangular annular, is provided with an oval catch 6 that slides in chute 5, passes through the movable riveted joint of tubular rivet 7 with the attachable mechanical stage 9 of several manholes 8 on described oval catch 6; The central through hole of described tubular rivet 7 is the matching relationship that is threaded with the insertion end of nose cone 10; Described attachable mechanical stage 9 one ends are set to the wave shape.
In addition, can also further improve on the such scheme basis, the link plate 11 on described main scale 1 right side is provided with handle 12 and hanging hole 13, and handle 12 tops are provided with the draw-in groove 14 of dress nose cone 10.For the ease of drawing bowlder fixing center of circle on blackboard, can as shown in Figure 3, make cone headed bottom adopt the form of sucker
during use, the teacher catches handle just can draw needed various geometric figure on blackboard, pin handle with hand, attachable mechanical stage is slided in chute, just can draw parallel lines fast or wave, need the picture bowlder, nose cone is inserted in the tubular rivet hole of attachable mechanical stage and rounded tabs riveted joint, then with the manhole on chalk radius size insertion attachable mechanical stage as required, nose cone is located on blackboard, the attachable mechanical stage rotating 360 degrees can be drawn circle, the main scale top is provided with protractor, can measure various Plane Angle, by the secondary chi hinged with protractor, can draw various geometric figures, the link plate place is provided with hanging hole, be convenient to hang.
This kind of multifunctional drawing ruler through after experimental application, is proved to be and has good practicality.It is simple in structure, easy to use that this kind of chi has, the characteristics that gather multi-function in integral whole, and also volume is little, and easy to carry and use.
Claims (1)
1. a Multi-functional drawing rule for mathematics, comprise main scale (1), it is characterized in that: the top of described main scale (1) is connected with protractor (2), is hinged with secondary chi (3) at the home position of described protractor (2); One end of described secondary chi (3) is provided with pointer (4); Have rectangular chute (5) on described main scale (1), chute (5) is built-in with an oval catch (6) that can slide in groove, upper by tubular rivet (a 7) connection attachable mechanical stage with several manholes (8) (9) at described oval catch (6); There is link plate (11) on described main scale (1) right side, handle (12) and hanging hole (13) are arranged on it, described handle top is provided with for the fixing draw-in groove (14) of nose cone (10), and the insertion end of the centre bore of described tubular rivet and nose cone (10) is for being threaded; Described attachable mechanical stage (9) bottom is the wave shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651471 CN202923227U (en) | 2012-12-01 | 2012-12-01 | Multifunctional mathematical drawing rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651471 CN202923227U (en) | 2012-12-01 | 2012-12-01 | Multifunctional mathematical drawing rule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202923227U true CN202923227U (en) | 2013-05-08 |
Family
ID=48213221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220651471 Expired - Fee Related CN202923227U (en) | 2012-12-01 | 2012-12-01 | Multifunctional mathematical drawing rule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202923227U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109367293A (en) * | 2018-10-23 | 2019-02-22 | 张艺璇 | A kind of modified compasses |
| CN113306331A (en) * | 2021-07-13 | 2021-08-27 | 许昌学院 | Special multi-functional plotter of higher mathematics |
-
2012
- 2012-12-01 CN CN 201220651471 patent/CN202923227U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109367293A (en) * | 2018-10-23 | 2019-02-22 | 张艺璇 | A kind of modified compasses |
| CN113306331A (en) * | 2021-07-13 | 2021-08-27 | 许昌学院 | Special multi-functional plotter of higher mathematics |
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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: 20130508 Termination date: 20151201 |
|
| EXPY | Termination of patent right or utility model |