CN201824728U - Multifunctional compass - Google Patents
Multifunctional compass Download PDFInfo
- Publication number
- CN201824728U CN201824728U CN2010205718190U CN201020571819U CN201824728U CN 201824728 U CN201824728 U CN 201824728U CN 2010205718190 U CN2010205718190 U CN 2010205718190U CN 201020571819 U CN201020571819 U CN 201020571819U CN 201824728 U CN201824728 U CN 201824728U
- Authority
- CN
- China
- Prior art keywords
- slide bar
- paintbrush
- slider
- pin
- multifunctional compass
- 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
Links
Abstract
The utility model discloses a multifunctional compass. The multifunctional compass mainly comprises a semicircular protractor, a first slide bar and a second slide bar, wherein the first slide bar and the second slide bar are connected in a crossed manner to form the compass, and a ruler is fixedly connected to the multifunctional compass. The multifunctional compass has a simple structure and the functions of conventional compasses, protractors and rulers; by adopting the multifunctional compass, the length between two known end points of a line segment can be measured through the multifunctional compasses, and an angle can be measured when only the top point of the angle and any point on the two sides of the angle are known, so that great convenience is brought for people; and the multifunctional compass is especially suitable for engineering measurement.
Description
Technical field
The utility model relates to a kind of drawing instrument, relates in particular to a kind of multifunctional compass.
Background technology
Compasses are drawing instruments that people use always in study and work, but present compasses function is too single.In addition, people must know that angle just can be measured in the both sides at angle when the use amount hornwork takes measurement of an angle, and this brings very big inconvenience for people's actual measurement.
Summary of the invention
In order to overcome above-mentioned defective, the utility model provides a kind of multifunctional compass, this multifunctional compass not only has the basic function of compasses, but also can take measurement of an angle as protractor, and on the summit of only knowing the angle and both sides, just can measure the size of its angle respectively in any point, in addition, also can be used as rule and measure length.
The utility model for the technical scheme that solves its technical problem and adopt is:
A kind of multifunctional compass mainly comprises first slide bar, second slide bar and semicircular protractor, and described semicircular protractor has been interval with three dials along semi-circumference, is respectively first angle dial, length dial and second angle dial; First slide bar, one end forms the picture pin and the other end forms handle (drawing the extending and shortening of pin), and described first slide bar is fixed on the semicircular protractor, and this first sliding pole axis is to parallel with the straight line of described semicircular protractor; Described second slide bar intersects with first slide bar fixedlys connected, and relative first sliding pole axis of this second slide bar is rotatable to locating with circumferencial direction; Described second slide bar forms paintbrush (it is identical with the paintbrush structure to draw pin) at the end away from semicircular protractor, and the other end forms pointer; Be provided with first slider near an end of drawing pin on described first slide bar, and this first slider can drive the picture pin along first slide bar location that endwisely slips; Be provided with second slider near an end of paintbrush on described second slide bar, and this second slider can drive paintbrush along second slide bar location that endwisely slips; Described paintbrush and draw pin respectively in the drive lower slider of described first and second slider during to maximum length, described paintbrush and draw the pin branch and be clipped to first and second slide bar to intersect the distance of fixed connection point equal; The intersection fixed connection point and the paintbrush conllinear of described pointer and first and second slide bar, the intersection fixed connection point of the zero graduation point of the described second horn craving scale and first and second slide bar and picture pin conllinear.
As further improvement of the utility model, described multifunctional compass also is provided with a square ruler, fixedlys connected with the straight line of described semicircular protractor in one side of this ruler, and the relative another side of this ruler is provided with the length scale value.
As further improvement of the utility model, the cross-connection point of described first and second slide bar is respectively equipped with the length scale value to the part between picture pin and the paintbrush.
The beneficial effects of the utility model are: utilize the combination of compasses and protractor and equivalent of triangle and correspondence theorem to design this multifunctional compass, this multifunctional compass not only can be drawn circle (circle that comprises known radius), but also can take measurement of an angle as protractor, and on the summit of only knowing the angle and both sides, just can measure the size (in solid space and the plane can) of its angle respectively in any point, in addition, can also utilize the straight line of semicircular protractor or the scale value on the compasses to measure length (in solid space and the plane can).
Description of drawings
Fig. 1 is the utility model structural representation.
In conjunction with the accompanying drawings, make the following instructions:
1---first slide bar 2---, second slide bar
3---semicircular protractors 31---, first angle dial
32---length dials 33---, second angle dial
11---drawing pin 12---handle
13---first slider 21---paintbrush
22---pointers 23---, second slider
4---the intersection fixed connection point of first and second slide bar
5---ruler
The specific embodiment
A kind of multifunctional compass mainly comprises first slide bar 1, second slide bar 2 and semicircular protractor 3, and semicircular protractor 3 has been interval with three dials along semi-circumference, is respectively first angle dial 31, length dial 32 and second angle dial 33; First slide bar, one end forms picture pin 11 and other end formation handle 12, the first slide bars 1 are fixed on the semicircular protractor 3, and this first sliding pole axis is to parallel with the straight line of semicircular protractor; Second slide bar intersects with first slide bar fixedlys connected, and relative first sliding pole axis of this second slide bar is rotatable to locating with circumferencial direction; Second slide bar forms paintbrush 21 at the end away from semicircular protractor, and the other end forms pointer 22; Be provided with first slider 13 near an end of drawing pin on first slide bar, and this first slider can drive the picture pin along first slide bar location that endwisely slips; Be provided with second slider 23 near an end of paintbrush on second slide bar, and this second slider can drive paintbrush along second slide bar location that endwisely slips; Paintbrush and draw pin respectively in the drive lower slider of first and second slider during to maximum length, paintbrush and draw the pin branch to be clipped to the distance of intersection fixed connection point 4 of first and second slide bar equal; The intersection fixed connection point and the paintbrush conllinear of pointer and first and second slide bar, the intersection fixed connection point of the zero graduation point of the second horn craving scale and first and second slide bar and picture pin conllinear.
Above-mentioned multifunctional compass also is provided with a square ruler 5, fixedlys connected with the straight line of semicircular protractor in one side of this ruler, and the relative another side of this ruler is provided with the length scale value.
The cross-connection point of above-mentioned first and second slide bar is respectively equipped with the length scale value to the part between picture pin and the paintbrush.
When measuring the length of line segment, two kinds of measuring methods are arranged:
1. directly treat the length of profile section with the length scale measurement on the square ruler;
2. first and second slider that slides makes it the longest, makes picture pin and paintbrush to not treating the two-end-point of profile section then, reads pointer this moment corresponding value on the length dial on the semicircular protractor, is the length of line segment.
Wherein, above-mentioned first kind of measuring method that is to say general measuring method, but can only use in the plane; Above-mentioned second kind of method of measuring line segment can be measured the distance of any point-to-point transmission, with regard to its length of energy measurement, comprises in the solid space and in the plane when that is to say the two-end-point of only knowing line segment.
When taking measurement of an angle, two kinds of measuring methods are arranged:
1. directly measure the size (can only planar use) of angle to be measured with protractor;
2. on the both sides for the treatment of angle measurement (as angle SAB), get respectively a bit (as S arbitrarily
2And S
3), measuring the distance that was clipped to angular vertex to be measured in these 2 o'clock minutees with said method (is AS
2And AS
3Length); First slider that slides, the distance of the summit that makes shoes to the distance of first and second slide bar cross-connection point and the point treated in the angle measurement on one side of get to angular vertex to be measured (is AS
2) equate; Second slider that slides again, the summit that makes paintbrush to the distance of first and second slide bar cross-connection point with to get the point treated on the angle measurement both sides (be AS to the distance of angular vertex to be measured
3) equate; Make then shoes summit and paintbrush summit respectively with got treat that the point of two in the angle measurement (is S
2, S
3) overlap; Read the numerical value of pointer this moment in the second horn craving scale, be the angle (the congruent triangles corresponding angles equate) for the treatment of angle measurement.
Claims (3)
1. multifunctional compass, it is characterized in that: mainly comprise first slide bar (1), second slide bar (2) and semicircular protractor (3), described semicircular protractor has been interval with three dials along semi-circumference, is respectively first angle dial (31), length dial (32) and second angle dial (33); First slide bar, one end forms picture pin (11) and the other end forms handle (12), and described first slide bar is fixed on the semicircular protractor, and this first sliding pole axis is to parallel with the straight line of described semicircular protractor; Described second slide bar intersects with first slide bar fixedlys connected, and relative first sliding pole axis of this second slide bar is rotatable to locating with circumferencial direction; Described second slide bar forms paintbrush (21) at the end away from semicircular protractor, and the other end forms pointer (22); Be provided with first slider (13) near an end of drawing pin on described first slide bar, and this first slider can drive the picture pin along first slide bar location that endwisely slips; Be provided with second slider (23) near an end of paintbrush on described second slide bar, and this second slider can drive paintbrush along second slide bar location that endwisely slips; Described paintbrush and draw pin respectively in the drive lower slider of described first and second slider during to maximum length, described paintbrush and draw the pin branch and be clipped to first and second slide bar to intersect the distance of fixed connection point (4) equal; The intersection fixed connection point and the paintbrush conllinear of described pointer and first and second slide bar, the intersection fixed connection point of the zero graduation point of the described second horn craving scale and first and second slide bar and picture pin conllinear.
2. multifunctional compass according to claim 1, it is characterized in that: described multifunctional compass also is provided with a square ruler (5), fixedly connected with the straight line of described semicircular protractor in one side of this ruler, the relative another side of this ruler is provided with the length scale value.
3. multifunctional compass according to claim 1 and 2 is characterized in that: the cross-connection point of described first and second slide bar is respectively equipped with the length scale value to the part between picture pin and the paintbrush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205718190U CN201824728U (en) | 2010-10-21 | 2010-10-21 | Multifunctional compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205718190U CN201824728U (en) | 2010-10-21 | 2010-10-21 | Multifunctional compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201824728U true CN201824728U (en) | 2011-05-11 |
Family
ID=43963282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205718190U Expired - Fee Related CN201824728U (en) | 2010-10-21 | 2010-10-21 | Multifunctional compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201824728U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310692A (en) * | 2011-06-27 | 2012-01-11 | 张可可 | Functional compass |
| CN105674836A (en) * | 2016-01-28 | 2016-06-15 | 苏州莱测检测科技有限公司 | Multifunctional protractor |
-
2010
- 2010-10-21 CN CN2010205718190U patent/CN201824728U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310692A (en) * | 2011-06-27 | 2012-01-11 | 张可可 | Functional compass |
| CN105674836A (en) * | 2016-01-28 | 2016-06-15 | 苏州莱测检测科技有限公司 | Multifunctional protractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20121021 |