CN202557078U - Auxiliary ruler - Google Patents
Auxiliary ruler Download PDFInfo
- Publication number
- CN202557078U CN202557078U CN2012202050586U CN201220205058U CN202557078U CN 202557078 U CN202557078 U CN 202557078U CN 2012202050586 U CN2012202050586 U CN 2012202050586U CN 201220205058 U CN201220205058 U CN 201220205058U CN 202557078 U CN202557078 U CN 202557078U
- Authority
- CN
- China
- Prior art keywords
- ruler
- auxiliary ruler
- blackboard
- guide rail
- auxiliary
- 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
Images
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses an auxiliary ruler, belongs to a teaching tool, and mainly aims at solving the problem that straight lines cannot be conveniently drawn on a blackboard. The auxiliary ruler structurally comprises a ruler body, wherein a side long edge of the ruler body is provided with graduation marks, the top end of the ruler body is provided with a sliding block which is embedded in a guide rail, and the guide rail is arranged on the top of the blackboard. Due to the fact that the auxiliary ruler is connected with the blackboard through the sliding block, the movements of the auxiliary ruler are enabled to be deft and stable so that stable vertical straight lines can be drawn as long as a teacher presses the auxiliary ruler, and when chalk is placed in a through hole of the auxiliary ruler and the auxiliary ruler is moved along the guide rail horizontally, horizontal straight lines can be drawn.
Description
Technical field
The utility model relates to a kind of teaching aid, specifically a kind of ruler of auxiliary blackboard mapping.
Background technology
Ruler is the teaching aid that is used for drawing straight line, and the teacher draws on blackboard needs hand steered a ruler when measuring straight line, line on the other hand, and not only operation inconvenience, and also rocking of ruler can make the drawing inaccuracy.
The utility model content
The purpose of the utility model is to provide a kind of auxiliary ruler, mainly solves and on blackboard, draws the inconvenient problem of straight line.
The technical scheme that its technical problem of the utility model solution is taked is: a kind of auxiliary ruler; Its structure comprises the ruler body; The long limit of described ruler body one side is provided with scale and indicates; Described ruler body upper end is provided with slide block, and described slide block is embedded in the guide rail, and described guide rail is arranged on the top of blackboard.
Described ruler body is adjacent to the surface of blackboard, and a side correspondence that has the scale sign at the ruler body is provided with the vertical through hole of a row.
The beneficial effect of the utility model is: adopt the structure that ruler is connected with blackboard through slide block; Make the motion of ruler become light and handy and stable; The teacher only need pin ruler can draw vertical line stably; Chalk is put into the through hole on the ruler, can draw horizontal linear along guide rail translation ruler.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1 guide rail, 2 slide blocks, 3 ruler bodies, 4 scales indicate, 5 through holes, 6 blackboards.
The specific embodiment
As shown in Figure 1.A kind of auxiliary ruler, its structure comprises ruler body 3, and the long limit of described ruler body 3 one sides is provided with scale and indicates 4, and described ruler body 3 upper ends are provided with slide block 2, and described slide block 2 is embedded in the guide rail 1, and described guide rail 1 is arranged on the top of blackboard 6.
Described ruler body 3 is adjacent to the surface of blackboard 6, and a side correspondence that has scale sign 4 at ruler body 3 is provided with the vertical through hole 5 of a row.
During use; To drawing position, the teacher only need pin ruler body 3 can draw vertical line stably, when drawing horizontal linear along guide rail 1 translation ruler body 3; Can chalk be put into the through hole 5 on the ruler body 3, can accomplish drafting along guide rail 1 translation ruler body 3.
Claims (2)
1. an auxiliary ruler comprises the ruler body, and the long limit of described ruler body one side is provided with scale and indicates, and it is characterized in that, described ruler body upper end is provided with slide block, and described slide block is embedded in the guide rail, and described guide rail is arranged on the top of blackboard.
2. a kind of auxiliary ruler according to claim 1 is characterized in that described ruler body is adjacent to the surface of blackboard, and a side correspondence that has the scale sign at the ruler body is provided with the vertical through hole of a row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202050586U CN202557078U (en) | 2012-05-09 | 2012-05-09 | Auxiliary ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202050586U CN202557078U (en) | 2012-05-09 | 2012-05-09 | Auxiliary ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202557078U true CN202557078U (en) | 2012-11-28 |
Family
ID=47206772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202050586U Expired - Fee Related CN202557078U (en) | 2012-05-09 | 2012-05-09 | Auxiliary ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202557078U (en) |
-
2012
- 2012-05-09 CN CN2012202050586U patent/CN202557078U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20130509 |