CN202106756U - Ruler for drawing parallelograms - Google Patents
Ruler for drawing parallelograms Download PDFInfo
- Publication number
- CN202106756U CN202106756U CN2011202307529U CN201120230752U CN202106756U CN 202106756 U CN202106756 U CN 202106756U CN 2011202307529 U CN2011202307529 U CN 2011202307529U CN 201120230752 U CN201120230752 U CN 201120230752U CN 202106756 U CN202106756 U CN 202106756U
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- CN
- China
- Prior art keywords
- chi
- ruler
- last
- parallelogram
- length
- 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 discloses a ruler for drawing parallelograms, which comprises a lower ruler, an upper ruler, a left ruler and a right ruler, wherein the length of the lower ruler and the length of the upper ruler are the same, the length of the left ruler and the length of the right ruler are the same, the left ruler and the lower ruler, the lower ruler and the right ruler, as well as the right ruler and the upper ruler are movably connected with each other through hinged supports, the ruler for drawing parallelograms is characterized in that the upper ruler and the left ruler are movably connected with each other through a pin shaft, a chute is formed in the middle of the upper ruler, a slide seat is arranged in the chute, a height measuring ruler is fixedly arranged on the slide seat, and the height measuring ruler is perpendicular to the upper ruler. The ruler for drawing parallelograms has a simple structure, is convenient to use, can be used for drawing parallelograms quickly, can improve the teaching efficiency, is convenient for students and teachers to use, and is convenient to carry.
Description
Technical field
The utility model relates to a kind of chi class apparatus, and specifically a kind of parallelogram is drawn chi.
Background technology
Ruler, set square and protractor are prerequisite study article and realias in pupil's mathematical studying.When drawing parallelogram, need earlier to measure side and following angle with protractor again with the ruler bottom of drawing; Measure the height of following and top again with ruler and set square, the parallelogram that finally just can draw, so the student is when study; Must carry above-mentioned articles for use respectively; The teacher also must carry above-mentioned several kinds of articles for use sometimes simultaneously in the process of giving lessons simultaneously, carries out smoothly with what guarantee to give lessons.Its weak point is: use above-mentioned several kinds of articles for use to draw parallelogram simultaneously, carry inconvenience, complex operation has reduced student's render speed, has reduced teacher's teaching efficient.
Summary of the invention
It is a kind of simple in structure, easy to use, easy to carry that the purpose of the utility model is to provide, and can draw parallelogram fast, improves the parallelogram of efficiency of teaching and draw chi.
In order to reach above purpose, the technical scheme that the utility model adopted is: this parallelogram is drawn chi, by playing chi, last chi, left chi and right chi to constitute; The length of following chi and last chi is identical; The length of a left side chi and right chi is identical, between left chi and the play chi, down between chi and the right chi, between right chi and the last chi all through the free bearing flexible connection, it is characterized in that: upward pass through the bearing pin flexible connection between chi and the left chi; Middle part at last chi is provided with chute; In chute, be provided with slide, on slide, be fixed with height measuring rule, height measuring rule is vertical with last chi.
The utility model is also implemented through following measure: described and left chi following chi junction is provided with the angular surveying chi.
All be provided with scale on described following chi, last chi, left chi, right chi, height measuring rule and the angular surveying chi.
The beneficial effect of the utility model is: simple in structure, easy to use, can draw out parallelogram fast, and improved efficiency of teaching, made things convenient for student and teacher to use, and easy to carry.
Description of drawings
Fig. 1 looks sketch map for the structure master of the utility model.
The specific embodiment
Make the utility model with reference to accompanying drawing 1.This parallelogram is drawn chi, and by playing chi 1, last chi 2, left chi 10 and right chi 3 to constitute, following chi 1 is identical with the length of last chi 2; Left side chi 10 is identical with the length of right chi 3, between left chi 10 and the play chi 1, down between chi 1 and the right chi 3, all pass through free bearing 4 flexible connections between right chi 3 and the last chi 2, it is characterized in that: upward pass through bearing pin 8 flexible connections between chi 2 and the left chi 10; When in the through hole of last chi 2 and left chi 10 junctions, inserting bearing pin 8 like this, can both be coupled together the drafting parallelogram, when extracting bearing pin 8; Can open chi 2 and left chi 10; Use as ruler, be provided with chute 5, in chute 5, be provided with slide 6 at the middle part of last chi 2; On slide 6, be fixed with height measuring rule 7; Height measuring rule 7 is vertical with last chi 2, can measure the distance between chi 2 and the following chi 1 through height measuring rule 7, the height of Here it is the parallelogram of drawing.
Described and left chi 10 following chi 1 junction is provided with angular surveying chi 9, can measure the angle between left chi 10 and the following chi 1 through angular surveying chi 9.
All be provided with scale on described following chi 1, last chi 2, left chi 10, right chi 3, height measuring rule 7 and the angular surveying chi 9.
When using the utility model, can be with playing chi 1, last chi 2, left chi 10 and right chi 3 to rotate on the same straight line, to draw straight line; When drawing parallelogram,, can measure the height of parallelogram through height measuring rule 7 through the base that following chi 1 can draw parallelogram; Thereby determine the position of chi 2; The draw top margin of parallelogram measures the angle between left chi 10 and the following chi 1 through angular surveying chi 7 again, thus two sides of the parallelogram that draws; So just, can easily accomplish the drafting of whole parallelogram, improve picture efficient.
Claims (2)
1. parallelogram is drawn chi; By playing chi (1), last chi (2), left chi (10) and right chi (3) to constitute; Following chi (1) is identical with the length of last chi (2); Left side chi (10) is identical with the length of right chi (3), between left chi (10) and the play chi (1), down between chi (1) and the right chi (3), all pass through free bearing (4) flexible connection between right chi (3) and the last chi (2), it is characterized in that: upward pass through bearing pin (8) flexible connection between chi (2) and the left chi (10); Be provided with chute (5) at the middle part of last chi (2); In chute (5), be provided with slide (6), on slide (6), be fixed with height measuring rule (7), height measuring rule (7) is vertical with last chi (2).
2. parallelogram according to claim 1 is drawn chi, it is characterized in that: described and left chi (10) following chi (1) junction is provided with angular surveying chi (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202307529U CN202106756U (en) | 2011-07-03 | 2011-07-03 | Ruler for drawing parallelograms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202307529U CN202106756U (en) | 2011-07-03 | 2011-07-03 | Ruler for drawing parallelograms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202106756U true CN202106756U (en) | 2012-01-11 |
Family
ID=45432203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202307529U Expired - Fee Related CN202106756U (en) | 2011-07-03 | 2011-07-03 | Ruler for drawing parallelograms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202106756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105620126A (en) * | 2016-02-22 | 2016-06-01 | 桂林航天工业学院 | Rapid and accurate multipurpose drawing instrument |
-
2011
- 2011-07-03 CN CN2011202307529U patent/CN202106756U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105620126A (en) * | 2016-02-22 | 2016-06-01 | 桂林航天工业学院 | Rapid and accurate multipurpose drawing instrument |
| CN105620126B (en) * | 2016-02-22 | 2017-10-31 | 桂林航天工业学院 | A kind of quick and precisely multipurpose plotter |
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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: 20120111 Termination date: 20120703 |