CN201148078Y - Number axis ruler - Google Patents
Number axis ruler Download PDFInfo
- Publication number
- CN201148078Y CN201148078Y CNU2007200140271U CN200720014027U CN201148078Y CN 201148078 Y CN201148078 Y CN 201148078Y CN U2007200140271 U CNU2007200140271 U CN U2007200140271U CN 200720014027 U CN200720014027 U CN 200720014027U CN 201148078 Y CN201148078 Y CN 201148078Y
- Authority
- CN
- China
- Prior art keywords
- plastic plate
- openings
- along
- utility
- length scale
- 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)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a number-axis ruler, length scales are arranged on the long side of a plastic panel; two thin openings perpendicular with each other are arranged on the plastic plates, length scales are engraved along the openings with the cross point as the round spot; an oblique opening is arranged along the bisector of the right triangle formed by the two perpendicular openings from the cross point, and length scales are also engraved on both sides of the oblique opening. When the plastic plate is fixedly placed on a plane, a coordinate axis can be drawn directly by the pencil along the thin opening on the plastic plate. The utility model has the advantages of rational structure, nice appearance, flexible operation, simple processing technology, etc.
Description
Technical field
The utility model relates to a kind of measurement drawing instrument, especially a kind of number axis ruler.
Background technology
In the learning mathematics process, reference axis is very important study subject.And when drawing reference axis, people can only rely on instruments such as ruler, protractor accurately to draw, very trouble.For this reason, we provide a kind of new-type number axis ruler that can directly draw reference axis very necessary.
Summary of the invention
The purpose of this utility model provides a kind of number axis ruler, is used to solve the problem that common ruler can't disposablely be drawn number axis.
For achieving the above object, the utility model number axis ruler comprises the rectangular plastic plate, and surface, the long limit of plastic plate is marking length scale evenly; On plastic plate, offer two orthogonal thin openings, and be that round dot is along opening marking length scale with the crosspoint; Offer inclined open from the crosspoint along the bisector of two squares that vertical openings is formed, at inclined open both sides also marking length scale.
After adopting said structure, the user plastic plate fixedly lay rule with the thin opening part of nib on plastic plate in the plane, just can directly draw reference axis, and opening part also is provided with the length scale, be convenient to user's accurate Drawing.
The utility model has the advantages that: rational in infrastructure, good looking appearance, flexible operation, technology are simple, can directly draw the accurate coordinates axle, save time, and improve study, functional efficiency.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the utility model number axis ruler.
The specific embodiment
As shown in Figure 1, the utility model number axis ruler comprises rectangular plastic plate 1, and surface, plastic plate 1 long limit is marking length scale 2 evenly; On plastic plate 1, offer two orthogonal thin openings 3, and be that round dot is along opening 3 marking length scales with the crosspoint; Bisector from the crosspoint along square that two vertical openings 3 are formed is offered inclined open 3-1, at inclined open 3-1 both sides also marking length scale.
Claims (1)
1, a kind of number axis ruler comprises rectangular plastic plate (1), it is characterized in that: surface, the long limit of plastic plate (1) is marking length scale (2) evenly; On plastic plate (1), offer two orthogonal thin openings (3), and be that round dot is along opening (3) marking length scale with the crosspoint; The bisector of forming square along two vertical openings (3) from the crosspoint is offered inclined open (3-1), at inclined open (3-1) both sides also marking length scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200140271U CN201148078Y (en) | 2007-08-29 | 2007-08-29 | Number axis ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200140271U CN201148078Y (en) | 2007-08-29 | 2007-08-29 | Number axis ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201148078Y true CN201148078Y (en) | 2008-11-12 |
Family
ID=40115844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200140271U Expired - Fee Related CN201148078Y (en) | 2007-08-29 | 2007-08-29 | Number axis ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201148078Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106696547A (en) * | 2017-01-18 | 2017-05-24 | 潘笑悦 | Blackboard for math class |
-
2007
- 2007-08-29 CN CNU2007200140271U patent/CN201148078Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106696547A (en) * | 2017-01-18 | 2017-05-24 | 潘笑悦 | Blackboard for math class |
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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: 20081112 Termination date: 20090929 |