CN202169820U - Multifunctional protractor - Google Patents
Multifunctional protractor Download PDFInfo
- Publication number
- CN202169820U CN202169820U CN2011202698151U CN201120269815U CN202169820U CN 202169820 U CN202169820 U CN 202169820U CN 2011202698151 U CN2011202698151 U CN 2011202698151U CN 201120269815 U CN201120269815 U CN 201120269815U CN 202169820 U CN202169820 U CN 202169820U
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- protractor
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- circle
- center
- place
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a multifunctional protractor which comprises a protractor plate and is characterized in that the protractor plate is provided with a plurality of through holes; the through holes comprise a through hole positioned at the center of a circle of the protractor plate and through holes at the positions adjacent to scales lines on lines of 0, 90 and 180 degrees. The through holes also comprise a plurality of through holes respectively arranged at the positions of lines of 0, 45, 90, 135 and 180 degrees on the protractor plate. Scale lines are arranged below the protractor plate along a straight edge. The utility model has the beneficial effects that the multifunctional protractor is convenient and immediate to use, reduces the manufacturing cost and is convenient to carry.
Description
Technical field
The utility model belongs to culture and education apparatus field, is a kind of student's multi-function protractor, is that function is drawn in the measurement with protractor, ruler, compasses specifically.
Background technology
At present, people are used for the instrument measuring and draw in learning life, and commonly used mainly is protractor, ruler, compasses, the maximum single finished product that is still modal protractor, ruler, compasses of supply in the existing instrument.The multi-function protractor that minority is also arranged certainly, these technical scheme improvement have his own strong points, but exist cost high, carry the weak point of inconvenience.
The utility model content
The purpose of the utility model is to solve the problem that prior art exists, and a kind of multi-function protractor is provided, and can integrate the ruler of protractor and compasses function at least, even can integrated ruler function.One-object-many-purposes, and use easy to carryly, cost is low.
The utility model for the technical scheme that solves above-mentioned technological difficulties and adopt is: a kind of student's multi-function protractor, comprise the protractor plate, and it is characterized in that the protractor plate is provided with a plurality of through holes.Except that can using as protractor, can also utilize the nib of two pens to insert through hole picture circle, circular arc line, play the effect of compasses.
Described through hole comprises the through hole that closes on the graduation mark position on the through hole that is positioned at protractor plate circle centre position and 0 °, 90 ° and the 180 ° of lines, is used for auxiliary picture right angle or rectangular coordinate system.
Described through hole also is included in 0 ° of protractor plate, 45 °, 90 °, 135 ° and 180 ° of several through holes that the line position place is provided with respectively.
Further, the interval between the through hole on 0 °, 45 °, 90 °, 135 ° and the 180 ° of line positions is 5mm, and the distance in the start position of through hole to the protractor plate center of circle becomes arithmetic progression to distribute the circle or the arc of the different certain radius of can accurately drawing.For example at 0 ° of line position being starting point apart from center of circle 5mm place, whenever through hole is set at a distance from 5mm; At a distance from 5mm through hole is set to be that starting point is every apart from center of circle 9mm place at 45 ° of line positions; To be starting point apart from center of circle 8mm place, every separated 5mm is provided with through hole at 90 ° of line positions; To be starting point apart from center of circle 7mm place, every separated 5mm is provided with through hole at 135 ° of line positions; To be starting point apart from center of circle 6mm place, every separated 5mm is provided with through hole at 180 ° of line positions.
Below the protractor plate, along straight flange graduation mark is set and forms ruler, integrated ruler function on protractor is to measure or to draw the fixed length straight line.
The utility model has following beneficial effect: the utility model is provided with a plurality of through holes or ruler on the protractor plate, integrates protractor, compasses even ruler function, so reduced production cost, it is little to take up room simultaneously, easy to carry.Make things convenient for student, teacher, designer's use, reduced the expense of purchasing three kinds of instruments respectively.
Description of drawings
Fig. 1 is the structural representation of multi-function protractor
The specific embodiment
Below in conjunction with accompanying drawing and a preferred embodiment the utility model is done further to describe.
Through a specific embodiment the novel patent of these article is described in further detail, to help understanding this novel patent.
As shown in Figure 1, on protractor plate 1, except that being provided with the angle index line, on the protractor plate, also be provided with a plurality of through holes 2, and at the through hole 3 of circle centre position.Make this protractor plate except that the angle that can carry out the angular surveying and the different number of degrees of picture; Can also utilize the nib of two pens to insert respectively in the different through holes; One-pen is motionless as the center of circle, and one-pen rotates picture circle or circular arc around motionless pen in addition, realizes the picture circle function of compasses.
For the layout of through hole, can as shown in Figure 1ly comprise the through hole 3 that is positioned at circle centre position and on 0 ° on the protractor plate, 90 ° and 180 ° of lines, close on the through hole that the position of graduation mark is provided with; Be the center of circle with the center when using, respectively with 0 °, 90 °; Through hole is that radius is drawn circle, 0 °, 90 ° to the distance in the center of circle on 180 ° of lines; Through hole on 180 ° of lines does not wait to the distance in the center of circle, can draw the circle of different radii.Except that can drawing circle, can also utilize the through hole of this position to draw " point ", draw rectangular coordinate system, right angle according to the position of this " point ", or right angled triangle etc.
More for a long time, alinement is with convenient mark and definite distance as far as possible for through hole, and for example described through hole also is included in 0 ° of protractor plate, 45 °, 90 °, 135 ° and 180 ° of several through holes that the line position place is provided with respectively, so that draw the circle of different radii.
Further, the interval between the through hole on 0 °, 45 °, 90 °, 135 ° and the 180 ° of line positions is 5mm, and the distance in the start position of through hole to the protractor plate center of circle becomes arithmetic progression.The circle or the arc of the different certain radius of can accurately drawing.To be starting point apart from center of circle 5mm place, every separated 5mm is provided with through hole at 0 ° of line position; At a distance from 5mm through hole is set to be that starting point is every apart from center of circle 9mm place at 45 ° of line positions; To be starting point apart from center of circle 8mm place, every separated 5mm is provided with through hole at 90 ° of line positions; To be starting point apart from center of circle 7mm place, every separated 5mm is provided with through hole at 135 ° of line positions; To be starting point apart from center of circle 6mm place, every separated 5mm is provided with through hole at 180 ° of line positions.Each through hole differs one millimeter arithmetic progression to distance formation 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, the 11mm...... of circle centre position through hole 3 like this; And be arranged with rule; Be convenient to find respective aperture, utilize these holes circle or the circular arc of radius that can draw like this for 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm.......
Below the protractor plate, along straight flange graduation mark is set and forms ruler, integrated ruler function on protractor is to measure or to draw the fixed length straight line.
So-called 0 °, 45 °, 90 °, 135 ° and 180 ° of lines are meant the linear position that begins to be positioned at this angle from the center of circle, rather than refer to must be decorated with straightway in this position in the utility model.
Claims (6)
1. a multi-function protractor comprises the protractor plate, it is characterized in that: a plurality of through holes are set on the protractor plate.
2. multi-function protractor as claimed in claim 1 is characterized in that: described through hole comprises the through hole that closes on the graduation mark position on the through hole that is positioned at protractor plate circle centre position and 0 °, 90 ° and the 180 ° of lines.
3. multi-function protractor as claimed in claim 2 is characterized in that: described through hole also is included in 0 ° of protractor plate, 45 °, 90 °, 135 ° and 180 ° of several through holes that the line position place is provided with respectively.
4. multi-function protractor as claimed in claim 3 is characterized in that: the interval between the through hole on 0 °, 45 °, 90 °, 135 ° and the 180 ° of line positions is 5mm, and the distance in the start position of through hole to the protractor plate center of circle becomes arithmetic progression to distribute.
5. multi-function protractor as claimed in claim 4 is characterized in that: to be starting point apart from center of circle 5mm place, every separated 5mm is provided with through hole at 0 ° of line position; At a distance from 5mm through hole is set to be that starting point is every apart from center of circle 9mm place at 45 ° of line positions; To be starting point apart from center of circle 8mm place, every separated 5mm is provided with through hole at 90 ° of line positions; To be starting point apart from center of circle 7mm place, every separated 5mm is provided with through hole at 135 ° of line positions; To be starting point apart from center of circle 6mm place, every separated 5mm is provided with through hole at 180 ° of line positions.
6. like the arbitrary described multi-function protractor of claim 1-5, it is characterized in that: below the protractor plate, graduation mark is set along straight flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202698151U CN202169820U (en) | 2011-07-28 | 2011-07-28 | Multifunctional protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202698151U CN202169820U (en) | 2011-07-28 | 2011-07-28 | Multifunctional protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202169820U true CN202169820U (en) | 2012-03-21 |
Family
ID=45828023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202698151U Expired - Fee Related CN202169820U (en) | 2011-07-28 | 2011-07-28 | Multifunctional protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202169820U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017133143A1 (en) * | 2016-02-01 | 2017-08-10 | 孙生强 | Multifunctional ruler |
-
2011
- 2011-07-28 CN CN2011202698151U patent/CN202169820U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017133143A1 (en) * | 2016-02-01 | 2017-08-10 | 孙生强 | Multifunctional ruler |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20160728 |