CN202169820U - Multifunctional protractor - Google Patents

Multifunctional protractor Download PDF

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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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CN
China
Prior art keywords
protractor
hole
circle
center
place
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
Application number
CN2011202698151U
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Chinese (zh)
Inventor
韩生华
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Individual
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Individual
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Publication date
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Priority to CN2011202698151U priority Critical patent/CN202169820U/en
Application granted granted Critical
Publication of CN202169820U publication Critical patent/CN202169820U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

Multi-function protractor
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.
CN2011202698151U 2011-07-28 2011-07-28 Multifunctional protractor Expired - Fee Related CN202169820U (en)

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

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202698151U Expired - Fee Related CN202169820U (en) 2011-07-28 2011-07-28 Multifunctional protractor

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CN (1) CN202169820U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017133143A1 (en) * 2016-02-01 2017-08-10 孙生强 Multifunctional ruler

Cited By (1)

* Cited by examiner, † Cited by third party
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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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