CN205498434U - Multifunctional ruler and compass for teaching purpose - Google Patents
Multifunctional ruler and compass for teaching purpose Download PDFInfo
- Publication number
- CN205498434U CN205498434U CN201620157369.8U CN201620157369U CN205498434U CN 205498434 U CN205498434 U CN 205498434U CN 201620157369 U CN201620157369 U CN 201620157369U CN 205498434 U CN205498434 U CN 205498434U
- Authority
- CN
- China
- Prior art keywords
- ruler
- protractor
- compasses
- compass
- compasses pole
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides a multifunctional ruler and compass for teaching purpose, including protractor, ruler, compasses pole and sucking disc, the sucking disc is located the centre of a circle department of the angle scale of protractor, and protractor, ruler, compasses pole and sucking disc are articulated through the round pin axle, the ruler is folding chi, the compasses pole is the telescopic link, is equipped with 2 above chalk insertion hole on the compasses pole, the device is fixed in the blackboard through the sucking disc on, the protractor is used for the angular surveying, and the ruler is used for drawing straight line and length measurement, sets up chalk insertion hole on the compasses pole, can realize compasses pole rotate around the pin roll the drawing of circle when inserting the chalk, because the sucking disc is located the centre of a circle department of the angle scale of protractor, therefore the compasses pole still can carry out the drawing of arbitrary angle circular arc, and the ruler is folding chi, and the compasses pole be the telescopic link, and above -mentioned extending structure has reduced the whole volume that installs, portable, the expansion end of ruler and compasses pole all is equipped with circular arc chamfering, and the sharp -pointed part of avoidance means is hurted sb. 's feelings.
Description
Technical field
This utility model relates to a kind of multifunctional teaching sector ruler and compass, belongs to teaching aid technical field.
Background technology
At present, known teaching sector ruler and compass mainly has two classes, and a kind of is traditional wooden ruler class, and (conventional has 45 degree three
Angle square, common-size is between 42 centimetres～60 centimetres)；30 degree of set squares, (common-size is at 30 centimetres～60 lis
Between meter, wherein the scope on maximum limit is between 50 centimetres～60 centimetres)；Stitch type compasses (common-size 40 lis again
Between rice～50 centimetres) these three；Also having a class is exactly plastics ruler classes, and this class is compared with traditional wooden ruler class
Transparent color can be made, remaining and indistinction, there is also small part simultaneously on market on set square, add the product of handle.
One, even if these instruments only carry one of them also cannot load in any school bag or briefcase, this just represents and makes
User have to individually hold these instruments, and this type of instrument is to use in school, especially in basic education, and student
Work and rest with teacher and time basic synchronization, the sharp parts of these instruments is also easy to make during using or carrying
Becoming unexpected injury, this just brings great inconvenience to user.
Its two, these drawing tools are frequently not independent use, and user is to need to carry out not in most cases
Disconnected instrument of changing, and the time that wastes in this process does not say that being also possible to inspiration loses, this be one the most fearful
Thing.
Its three, these instruments do not note can deviate from original position and more difficult recovery especially during using
In each corner location and the eminence of blackboard, user could have to continue by holding instrument by the power being perpendicular to black print face
Continuing in needs position, the time, the longest hands will be the most uncomfortable.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and provides one to have protractor, ruler and compasses concurrently
The multifunctional teaching sector ruler and compass of function.
Realizing the technical scheme that this utility model purpose used is, a kind of multifunctional teaching sector ruler and compass, including protractor, straight
Chi, compasses bar and sucker, sucker is positioned at the circle centre position of the angle index of protractor, protractor, ruler, compasses bar and suction
Dish passes through hinge；Described compasses bar is expansion link, and compasses bar is provided with more than 2 chalk jacks.
The center of protractor, one end of ruler, one end of compasses bar and sucker centrally through hinge.
The other end of described ruler and compasses bar is equipped with circular arc chamfering.
Described ruler is folding ruler.
The diameter range of described protractor is 10cm～60cm.
Described compasses bar is syllogic expansion link, and the collapsing length scope of compasses bar is 10cm～60cm.
As shown from the above technical solution, the functional teaching ruler that this utility model provides, by protractor, ruler, compasses bar
Consisting of hinge with sucker, device is fixed on blackboard by sucker, and protractor is used for angular surveying, and ruler is used
In drawing straight line and linear measure longimetry, compasses bar being offered chalk jack, being rotated around bearing pin by compasses bar when inserting chalk can
Realizing the drafting of circle, be positioned at the circle centre position of the angle index of protractor due to sucker, therefore compasses bar also can carry out random angle
The drafting of degree circular arc.
In the functional teaching ruler that this utility model provides, ruler is folding ruler, and compasses bar is expansion link, and above-mentioned folding is tied
Structure and stretching structure reduce the overall volume of device, it is simple to carry；The movable end of ruler and compasses bar is equipped with circular arc
Angle, it is to avoid device sharp parts is hurted sb.'s feelings.
Compared with prior art, the multifunctional teaching sector ruler and compass that this utility model provides, have the advantage that
1) common briefcase can be put into after folding, it is simple to carry；
2) drawing tool classroom easy switching, need not leave blackboard；
3) overall structure is without sharp parts, it is to avoid because misusing or misapply generation personal injury；
4) rubber suction cups absorption, it is to avoid move easily during use；
5) arbitrarily angled straight line can be drawn.
Accompanying drawing explanation
The protractor of the multifunctional teaching sector ruler and compass that Fig. 1 provides for this utility model uses view.
The ruler of the multifunctional teaching sector ruler and compass that Fig. 2 provides for this utility model uses view.
The compasses of the multifunctional teaching sector ruler and compass that Fig. 3 provides for this utility model use view.
Wherein, 1-protractor, 2-ruler, 3-compasses bar, 4-sucker, 5-bearing pin, 6-chalk jack.
Detailed description of the invention
Illustrating this utility model in detail with embodiment below in conjunction with the accompanying drawings, content of the present utility model is not limited to
In following example.
The multifunctional teaching sector ruler and compass that this utility model provides, its structure as shown in Figure 1 to Figure 3, including protractor 1, straight
Chi 2, compasses bar 3 and sucker 4, sucker 4 is positioned at the circle centre position of the angle index of protractor 1, protractor a diameter of
20cm, cutting with scissors centrally through bearing pin 5 of the center of protractor 1, the left end of ruler 2, the upper end of compasses bar 3 and sucker 4
Connect；Described ruler is folding ruler, and described compasses bar is syllogic expansion link, and compasses bar is provided with more than 2 chalk jacks
6, the equal 20cm that is of three sections of telescopic joint length of compasses bar, the spacing of adjacent two chalk jacks is 10cm, ruler
The lower end of right-hand member and compasses bar is equipped with circular arc chamfering.
The occupation mode of this multifunctional teaching sector ruler and compass is as follows:
1, protractor occupation mode: see Fig. 1, when using as protractor, is punctured into the shortest by compasses bar 3, profit
It is fixed on blackboard surface with sucker 4；According to the angle between practical situation regulation ruler 2 and compasses bar 3, will circle
Gauge bar 3 makees handle；By ruler 2 and protractor 1 with the use of, measure angle or angle required for drawing.
2, ruler occupation mode: see Fig. 2, when using as ruler, is punctured into the shortest by compasses bar 3, utilizes and inhales
Dish 4 is fixed on blackboard surface；According to the angle between practical situation regulation ruler 2 and compasses bar 3, by compasses bar
3 make handle；Ruler 2 is all launched, measures length or draw straight line.
3, compasses occupation mode: see Fig. 3, when using as compasses, utilizes sucker 4 to be fixed on blackboard surface；
According to practical situation, compasses bar 3 is launched, chalk jack 6 inserts chalk, draws circle；Coordinate with protractor 1 and make
With drawing circular arc.
Being rolled by ruler, shunk completely by expansion link, this state is then the receiving state of multifunctional teaching sector ruler and compass.
Claims (5)
1. a multifunctional teaching sector ruler and compass, it is characterised in that: including protractor, ruler, compasses bar and sucker, sucker is positioned at the circle centre position of the angle index of protractor, and protractor, ruler, compasses bar and sucker pass through hinge；Described compasses bar is expansion link, and compasses bar is provided with more than 2 chalk jacks, and described ruler is folding ruler.
Multifunctional teaching sector ruler and compass the most according to claim 1, it is characterised in that: the center of protractor, one end of ruler, one end of compasses bar and sucker centrally through hinge.
Multifunctional teaching sector ruler and compass the most according to claim 2, it is characterised in that: the other end of described ruler and compasses bar is equipped with circular arc chamfering.
4. according to the multifunctional teaching sector ruler and compass described in claim 1 or 2 or 3, it is characterised in that: the diameter range of described protractor is 10cm～60cm.
5. according to the multifunctional teaching sector ruler and compass described in claim 1 or 2 or 3, it is characterised in that: described compasses bar is syllogic expansion link, and the collapsing length scope of compasses bar is 10cm～60cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620157369.8U CN205498434U (en) | 2016-03-02 | 2016-03-02 | Multifunctional ruler and compass for teaching purpose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620157369.8U CN205498434U (en) | 2016-03-02 | 2016-03-02 | Multifunctional ruler and compass for teaching purpose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205498434U true CN205498434U (en) | 2016-08-24 |
Family
ID=56726583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620157369.8U Expired - Fee Related CN205498434U (en) | 2016-03-02 | 2016-03-02 | Multifunctional ruler and compass for teaching purpose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205498434U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160919A (en) * | 2017-05-19 | 2017-09-15 | 长江大学 | Multifunctional mathmatical teaching ruler |
| CN113085419A (en) * | 2021-05-20 | 2021-07-09 | 重庆工程职业技术学院 | Teaching is with supplementary drawing device |
-
2016
- 2016-03-02 CN CN201620157369.8U patent/CN205498434U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160919A (en) * | 2017-05-19 | 2017-09-15 | 长江大学 | Multifunctional mathmatical teaching ruler |
| CN113085419A (en) * | 2021-05-20 | 2021-07-09 | 重庆工程职业技术学院 | Teaching is with supplementary drawing device |
| CN113085419B (en) * | 2021-05-20 | 2023-08-08 | 重庆工程职业技术学院 | Auxiliary drawing device for teaching |
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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: 20160824 Termination date: 20170302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |