CN203391524U - Circle-drawing ruler - Google Patents
Circle-drawing ruler Download PDFInfo
- Publication number
- CN203391524U CN203391524U CN201320430860.XU CN201320430860U CN203391524U CN 203391524 U CN203391524 U CN 203391524U CN 201320430860 U CN201320430860 U CN 201320430860U CN 203391524 U CN203391524 U CN 203391524U
- Authority
- CN
- China
- Prior art keywords
- ruler
- blade
- circle
- positioning convex
- straight line
- 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 relates to a circle-drawing ruler, belongs to the technical field of rulers and solves the technical problem of providing a ruler which is applicable to drawing circles and wavy lines. According to the technical scheme, the circle-drawing ruler comprises a ruler body and a positioning projection. One long side of the ruler body is a linear side graduated, and the side opposite to the long side is a wavy curved side. The ruler body is provided with a plurality of round holes in the lengthwise direction. The positioning projection is formed on an extension line of a gradation mark 0 of the ruler body. The round holes and the positioning projection are on a straight line parallel to the linear side. The circle-drawing ruler is available for drawing straight lines, circles and wavy lines, convenient to use and convenient to carry.
Description
Technical field
A kind of picture circle of the utility model ruler, belongs to ruler technical field.
Background technology
Traditional ruler only has the function of picture straight line, when student needs picture to draw simple circle or wave, need to carry multiple drawing instrument, very inconvenient, traditional sired results tool of painting is generally compasses, and the stitch of compasses is too sharp keen, and phenomenon in use often occurs to accidentally injure student.
Utility model content
The utility model overcomes the deficiency that prior art exists, technical problem to be solved for provide a kind of can draw circles and the ruler of wave.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of picture circle ruler, comprise blade and positioning convex, the Yi Tiaochang limit of described blade is for being with graduated straight line, its opposite side is wavy curved side, uniformly on the length direction of blade be provided with a plurality of circular holes, on blade, on the extended line of 0 scale, be provided with positioning protrusion;
Described a plurality of circular hole with positioning convex on a straight line parallel with straight line.
Described positioning convex is a cone structure.
The original position of described circular hole is arranged on the extended line of 5mm graduation mark, and the distance between two adjacent circular holes is 5mm.
The intersection at each edge of described blade is provided with fillet.
The utility model compared with prior art has following beneficial effect.
The utility model is provided with positioning convex and circular hole on blade, the nib of pencil is inserted in circular hole, utilize positioning convex for the center of circle, distance between circular hole and positioning convex is radius, rotate ruler and pencil, just can complete the drafting of simple circle, convenient use, and, on ruler, be provided with wave edge, student can just can draw out wave attractive in appearance very easily, in addition, the intersection at each edge of the present utility model is provided with fillet, can avoid so sharp keen corner that student is accidentally injured.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is a kind of structural representation of drawing round ruler of the utility model.
Fig. 2 is a kind of lateral plan of drawing round ruler of the utility model.
In figure: 1 is blade, 2 is positioning convex, and 3 is circular hole, and 4 is straight line, curved side 5.
The specific embodiment
A kind of picture circle ruler as shown in Figure 1 and Figure 21,, comprise blade 1 and positioning convex 2, the Yi Tiaochang limit of described blade 1 is for being with graduated straight line 4, its opposite side is wavy curved side 5, uniformly on the length direction of blade 1 be provided with a plurality of circular holes 3, on blade 1, on the extended line of 0 scale, be provided with positioning protrusion 2;
Described a plurality of circular hole 3 with positioning convex 2 on a straight line parallel with straight line 4.
Described positioning convex 2 is a cone structure.
The original position of described circular hole 3 is arranged on the extended line of 5mm graduation mark, and the distance between two adjacent circular holes 3 is 5mm.
The intersection at each edge of described blade 1 is provided with fillet.
By reference to the accompanying drawings the utility model is described in further detail now, these accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.
The utility model can utilize blade 1 with straight line 4 draw line segments of graduation mark, utilizing the utility model picture bowlder, positioning convex 2 is pressed on paper, according to drawn radius of a circle, the nib of pencil is inserted in the circular hole 3 of corresponding scale, utilize positioning convex 2 for the center of circle, distance between circular hole 3 and positioning convex 2 is radius, mobile lead pencil, just can complete the drafting of simple circle, and, on blade 1, be provided with wavy curved side 5, student can just can draw out wave attractive in appearance very easily, in addition, the intersection at each edge of the present utility model is provided with fillet, can avoid so sharp keen corner that student is accidentally injured.
Claims (2)
1. draw circle ruler for one kind, it is characterized in that: comprise blade (1) and positioning convex (2), the Yi Tiaochang limit of described blade (1) is for being with graduated straight line (4), its opposite side is wavy curved side (5), the uniform a plurality of circular holes (3) that are provided with on the length direction of blade (1), the original position of described circular hole (3) is arranged on the extended line of 5mm graduation mark, distance between two adjacent circular holes (3) is 5mm, on the extended line of upper 0 scale of blade (1), be provided with positioning protrusion (2), described positioning convex (2) is a cone structure, described a plurality of circular hole (3) with positioning convex (2) on a straight line parallel with straight line (4).
2. a kind of picture circle ruler according to claim 1 and 2, is characterized in that, the intersection at each edge of described blade (1) is provided with fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320430860.XU CN203391524U (en) | 2013-07-19 | 2013-07-19 | Circle-drawing ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320430860.XU CN203391524U (en) | 2013-07-19 | 2013-07-19 | Circle-drawing ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203391524U true CN203391524U (en) | 2014-01-15 |
Family
ID=49903077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320430860.XU Expired - Fee Related CN203391524U (en) | 2013-07-19 | 2013-07-19 | Circle-drawing ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203391524U (en) |
-
2013
- 2013-07-19 CN CN201320430860.XU patent/CN203391524U/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 |
Granted publication date: 20140115 Termination date: 20140719 |
|
| EXPY | Termination of patent right or utility model |