CN202879028U - Magnetic ruler used by teacher - Google Patents
Magnetic ruler used by teacher Download PDFInfo
- Publication number
- CN202879028U CN202879028U CN2012200454369U CN201220045436U CN202879028U CN 202879028 U CN202879028 U CN 202879028U CN 2012200454369 U CN2012200454369 U CN 2012200454369U CN 201220045436 U CN201220045436 U CN 201220045436U CN 202879028 U CN202879028 U CN 202879028U
- Authority
- CN
- China
- Prior art keywords
- ruler
- teacher
- magnetic
- blackboard
- teachers
- 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
A magnetic ruler used by teachers is characterized by comprising a scaled ruler, a magnetic iron portion and small magnets arranged at both ends and in the plastic ruler. The magnetic ruler solves the problem that drawing a line on a blackboard (ferruginous) with a common ruler is labor consuming and the line drawn is likely to be skew. The requirements of the users (teachers) on rulers are taken into consideration, and magnets are added at both ends of the ruler to enhance the adsorption force of a ruler to a blackboard. The magnetic ruler which is produced according to teaching requirement of the users (teachers) is more practical and user friendly.
Description
Technical field
The teacher uses ruler at the upper teaching field of blackboard (irony).
Background technology
The teacher draws long straight line at blackboard (irony) with common ruler and often can produce crooked again effort at present.
Summary of the invention
It is raw material that present teacher's plastic flat ruler adopts merely plastics.The utility model patent is that a kind of teacher uses the magnetic force ruler, it is characterized in that comprising Scale ruler, magnetic force iron absorption part, and at plastic flat ruler two ends or inside small magnet is housed.Use traditional teacher to use ruler, the teacher uses ruler when the upper long straight line of picture of blackboard (irony), often can produce ruler and slide, and produce the crooked phenomenon of drawn straight line.By the improvement of the utility model patent, make ruler borrow magnetic force and docile also difficult generation slip in the blackboard surface, draw the very light of straight line change, thereby raising teacher setting-out efficient can also play the effect of saving teacher muscle power.And can use ruler simultaneously several, thereby increased teaching means.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is schematic appearance of the present utility model.
1. small magnets among the figure (thickness with 2 is identical) 2. have metric system scale plastic flat ruler
The specific embodiment
In Fig. 1, bore the hole identical with small magnet 1 diameter at the two ends that metric system scale plastic flat ruler 2 is arranged, then small magnet 1 is glued and is fixed in the hole that metric system scale plastic flat ruler 2 bores.
Innovation:
This utility model patent is a kind of practical ruler, it has overcome the phenomenon that common ruler is easy crooked in the upper setting-out of blackboard (irony) and require great effort, and fully take into account user (teacher) to the requirement of ruler, and adopt the ruler two ends to install the magnet mode additional, strengthen the absorption affinity of ruler and blackboard.Realize the characteristics of giving lessons according to user (teacher) by above thinking, strengthened the practicality of ruler, more embodied hommization.
Claims (1)
1. a teacher uses the magnetic force ruler, it is characterized in that comprising Scale ruler, magnetic force iron absorption part, and at plastic flat ruler two ends or inside small magnet is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200454369U CN202879028U (en) | 2012-02-13 | 2012-02-13 | Magnetic ruler used by teacher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200454369U CN202879028U (en) | 2012-02-13 | 2012-02-13 | Magnetic ruler used by teacher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202879028U true CN202879028U (en) | 2013-04-17 |
Family
ID=48070488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200454369U Expired - Fee Related CN202879028U (en) | 2012-02-13 | 2012-02-13 | Magnetic ruler used by teacher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202879028U (en) |
-
2012
- 2012-02-13 CN CN2012200454369U patent/CN202879028U/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: 20130417 Termination date: 20140213 |