CN205009842U - Ruler convenient to drawing - Google Patents
Ruler convenient to drawing Download PDFInfo
- Publication number
- CN205009842U CN205009842U CN201520751528.2U CN201520751528U CN205009842U CN 205009842 U CN205009842 U CN 205009842U CN 201520751528 U CN201520751528 U CN 201520751528U CN 205009842 U CN205009842 U CN 205009842U
- Authority
- CN
- China
- Prior art keywords
- ruler
- protractor
- top layer
- guide rail
- arc
- 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 ruler convenient to drawing mainly includes two parts on protractor and the ruler. The protractor, for the semi -circle, constitute by bottom, intermediate level, top layer, bottom, intermediate level, top layer bonding are together. The top layer, be equipped with the angle scale on it, the base of top layer is equipped with distance marker, still be equipped with an arc guide rail on the top layer, the arc core of arc guide rail is same with the centre of a circle of protractor. The intermediate level, its mid portion is empty, and the base is equipped with an opening for the ruler penetrates in the protractor. The ruler, one end is equipped with distance marker, arrange the protractor in outside, the other end is equipped with the screw, arranges in the protractor. Be equipped with one piece of bolt again, the bolt passes the screw on the arc guide rail screw in ruler of top layer. The utility model has the advantages that: combine the function of protractor and ruler as an organic whole, the quantity of the drafting instrument of reduction, it is simple and convenient to chart.
Description
Technical field
The utility model belongs to stationery, is related specifically to a kind of instrument measured and chart.
Background technology
Student Mathematics charts, and draws angle, triangle, quadrangle etc., generally all needs ruler and the instrument such as protractor or compasses.As drawn angle: first draw line segment, draw a some with protractor angulation again, then this put be connected with the starting point of that line segment of painting; For another example draw the equilateral triangle of a 3cm: first draw a 3cm line segment with ruler, then measure the angle of 60 degree with protractor, then draw and draw Article 2 3cm line segment with ruler, finally again two line segments connections are drawn Article 3 line segment.Above traditional drafting instrument and drafting method, the loaded down with trivial details inconvenience of drawing course, drawing speed is slow.
Summary of the invention
In order to solve Problems existing when described student above uses traditional drafting instrument doing mathematics to chart, a kind of ruler directly can drawing angle that the utility model provides, the function of protractor and ruler be combined as a whole, reduce the quantity of drafting instrument, drawing course is very simple and convenient.
The utility model solves the technical scheme that its technical problem adopts:
Be convenient to the ruler charted, mainly comprise protractor and ruler two parts.Described protractor, be semicircle, be made up of bottom, intermediate layer, top layer, bottom, intermediate layer, top layer are bonded together.Described top layer, which is provided with angle index, and the base of top layer is provided with distance scale; Top layer is also provided with an arc-shaped guide rail, the arc core of arc-shaped guide rail and the center of circle of protractor are same point.Described intermediate layer, intermediate portion is empty, and base is provided with an opening, penetrates in protractor for ruler.Described ruler, one end is provided with distance scale, and be placed in outside protractor, the other end is provided with screw, is placed in protractor.In order to adjust and fixing ruler corresponds to the anglec of rotation of protractor, be provided with again one piece of bolt, bolt screws in the screw on ruler through the arc-shaped guide rail of top layer, make ruler centered by the opening part of protractor, have this end of screw along the rotatable adjustment of guide rail.
The beneficial effects of the utility model are mainly manifested in: the function of protractor and ruler be combined as a whole, and the quantity of the drafting instrument of minimizing is charted simple and convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Fig. 2 is the structural representation seen after Fig. 1 throws off top layer and bolt.
Fig. 3 is the reverse side schematic diagram of the ruler in Fig. 2.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 ~ 3, a kind of embodiment of the present utility model is further described.
Be convenient to the ruler charted, mainly comprise protractor and ruler 1 two parts.Described protractor is semicircle, is made up of bottom 2a, intermediate layer 2b, top layer 2c, and bottom 2a, intermediate layer 2b, top layer 2c are bonded together.Described top layer 2c, adopt transparent material, which is provided with angle index 3, the base of top layer 2c is provided with distance scale 4, and distance scale 4 identifies to the right from the home position of protractor.Top layer 2c is also provided with an arc-shaped guide rail 5, the arc core of arc-shaped guide rail 5 and the center of circle of protractor are same point.Described intermediate layer 2b, intermediate portion is empty, and base is provided with an opening, the center of circle of the right amount of alignment hornwork of opening part.Described ruler 1, one end is provided with distance scale 6, is placed in outside protractor, and the other end is provided with screw 7, is placed in protractor.Be provided with again one piece of bolt 8, the arc-shaped guide rail 5 that bolt 8 passes top layer screws in the screw 7 on ruler.
The distance scale of ruler 1 is designated 0 ~ 80, and the distance scale on protractor base is designated 0 ~ 80, and the angle index of protractor is designated 10 ~ 170; The body width of ruler 1 is 10mm, length is 148mm, and the radius of protractor is 86mm.
In order to ruler can be made to rotate smoothly between 10 degree ~ 170 degree, the non-hollow part in base of intermediate layer 2b, narrower the closer to opening part, in lower waveform; Meanwhile, the width of opening part is slightly larger than the width of ruler, adopts 10.5mm here.
In order to ensure accuracy, ruler 1 being also provided with suspension ring 9, being also provided with on the right side of the 2b of intermediate layer and being provided with a rubber band 11 between suspension ring 10, two suspension ring and drawing over to one's side, making ruler 1 abut against the right of opening part.
Further, in order to easily see the angle that ruler rotates clearly, the afterbody being positioned at this one end of protractor at ruler 1 is provided with a root pointer 12, and the center of pointer 12, screw is all positioned in the centre symmetry line of protractor, namely with the flush right of ruler.
Further, parallel in order to maintain bottom, the below being positioned at protractor outside at ruler 1 is provided with paster 13, and its thickness is identical with the bottom 2a thickness of protractor.In order to not overslaugh ruler rotates, paster is narrower in this one end near protractor opening part.
When using present embodiment drawing, first unclamp bolt 7, and promote the angle of bolt adjustment ruler, then screwing bolts; Then just can by the straight length connecing angle and two limits of drawing out needs.Like this, use above-mentioned embodiment, the geometric figures such as angle of departure, triangle, quadrangle can be drawn very easily.
The utility model is not limited to embodiment above, and to one skilled in the art, under the prerequisite not departing from the utility model general principle, some changes made, all should be considered as belonging to protection domain of the present utility model.
Claims (3)
1. be convenient to the ruler charted, mainly comprise protractor and ruler two parts; It is characterized in that: described protractor, be semicircle, be made up of bottom, intermediate layer, top layer, bottom, intermediate layer, top layer are bonded together;
Described top layer, which is provided with angle index, and the base of top layer is provided with distance scale; Top layer is also provided with an arc-shaped guide rail, the arc core of arc-shaped guide rail and the center of circle of protractor are same point;
Described intermediate layer, intermediate portion is empty, and base is provided with an opening, penetrates in protractor for ruler;
Described ruler, one end is provided with distance scale, and be placed in outside protractor, the other end is provided with screw, is placed in protractor; In order to adjust and fixing ruler corresponds to the anglec of rotation of protractor, be provided with again one piece of bolt, bolt screws in the screw on ruler through the arc-shaped guide rail of top layer.
2. a kind of ruler being convenient to chart according to claim 1, is characterized in that: on ruler, be also provided with suspension ring, is also provided with suspension ring on the right side in intermediate layer, be provided with a rubber band and draw over to one's side, make ruler abut against the right of opening part between two suspension ring.
3. a kind of ruler being convenient to chart according to claim 1, it is characterized in that: the below being positioned at protractor outside at ruler is provided with paster, its thickness is identical with the underlayer thickness of protractor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520751528.2U CN205009842U (en) | 2015-09-27 | 2015-09-27 | Ruler convenient to drawing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520751528.2U CN205009842U (en) | 2015-09-27 | 2015-09-27 | Ruler convenient to drawing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205009842U true CN205009842U (en) | 2016-02-03 |
Family
ID=55208467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520751528.2U Expired - Fee Related CN205009842U (en) | 2015-09-27 | 2015-09-27 | Ruler convenient to drawing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205009842U (en) |
-
2015
- 2015-09-27 CN CN201520751528.2U patent/CN205009842U/en not_active Expired - Fee Related
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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: 20160203 Termination date: 20160927 |