CN203093516U - Line tool for blackboard - Google Patents
Line tool for blackboard Download PDFInfo
- Publication number
- CN203093516U CN203093516U CN2013201018304U CN201320101830U CN203093516U CN 203093516 U CN203093516 U CN 203093516U CN 2013201018304 U CN2013201018304 U CN 2013201018304U CN 201320101830 U CN201320101830 U CN 201320101830U CN 203093516 U CN203093516 U CN 203093516U
- Authority
- CN
- China
- Prior art keywords
- line
- blackboard
- guide rail
- lines
- tool
- 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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Abstract
The utility model relates to a drawing tool for teaching, in particular to a line tool for a blackboard. The line tool for the blackboard comprises guide rail lines and two elastic drawing ruler lines, four fixed nails are fixedly arranged on four corners of the blackboard, the guide rail lines are arranged between two adjacent fixed nails, and two ends of each drawing ruler line are respectively and movably sleeved on the two opposite guide rail lines. Due to the fact that the mentioned structure, a view can be drawn out easily, conveniently and fast, the elastic drawing ruler lines can not only draw straight lines, but also draw oblique lines, fold lines and the like, and the line tool for the blackboard is convenient to use.
Description
Technical field
The utility model relates to a kind of drawing instrument of the usefulness of imparting knowledge to students, and is specifically related to a kind of blackboard line tool.
Background technology
At school need be on blackboard in the middle of Jiao Xue the process, line tool commonly used mostly adopts common meter ruler, set square on blackboard at present, holds fixed-site instability during picture because volume is not easy greatly to take, usually tilt to move in the setting-out process, influence the setting-out effect.
Summary of the invention
The purpose of this utility model is to solve problems of the prior art and a kind of convenient to use, simple in structure and blackboard line tool that cost of manufacture is low is provided.
The purpose of this utility model is achieved in that a kind of blackboard line tool, comprise guide rail line and two rubber-likes picture chi lines, four corners of described blackboard are set with four staples, described guide rail line is arranged between two adjacent staples, and described two two ends difference movable sets of drawing the chi line are on two relative guide rail line.
All be set with slide block on described four guide rail line, the two ends of described picture chi line respectively with relative two guide rail line on slide block connect.
Good effect of the present utility model: adopt said structure, can simple and conveniently efficiently view be drawn, rubber-like is drawn the chi line, not only can draw straight line, and it is easy to use to draw oblique line or broken line etc.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the overall structure schematic diagram after rubber-like picture chi line elongates in the utility model.
The specific embodiment
As shown in Figure 1, 2, a kind of blackboard line tool, comprise guide rail line 2 and two rubber-likes picture chi lines 3,4 four corners of described blackboard are set with four staples 1, described guide rail line 2 is arranged between two adjacent staples 1, and described two two ends difference movable sets of drawing chi line 3 are on two relative guide rail line 2.
All be set with slide block 5 on described four guide rail line 2, the two ends of described picture chi line 3 respectively with relative two guide rail line 2 on slide block 5 connect.
During use; the slide block 5 that removable guide rail line is provided with; make picture chi line be in suitable position; according to the track setting-out of drawing the chi line, have elasticity again, therefore can adjust slide block 5 positions that relative both sides are provided with owing to draw the chi line; make picture chi line on blackboard, demonstrate required oblique line; when drawing broken line, can take up an official post in addition and get a bit, will draw the chi line drawing again to this aspect, again according to the track of this stroke chi line required broken line that draws at blackboard.It is simple and convenient handy.
Claims (2)
1. blackboard line tool, comprise guide rail line (2) and two rubber-likes picture chi lines (3), it is characterized in that: (4) four corners of described blackboard are set with four staples (1), described guide rail line (2) is arranged between adjacent two staples (1), and described two two ends difference movable sets of drawing chi line (3) are on two relative guide rail line (2).
2. a kind of blackboard line tool according to claim 1, it is characterized in that: all be set with slide block (5) on described four guide rail line (2), the two ends of described picture chi line (3) respectively with relative two guide rail line (2) on slide block (5) connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201018304U CN203093516U (en) | 2013-03-06 | 2013-03-06 | Line tool for blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201018304U CN203093516U (en) | 2013-03-06 | 2013-03-06 | Line tool for blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203093516U true CN203093516U (en) | 2013-07-31 |
Family
ID=48844947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201018304U Expired - Fee Related CN203093516U (en) | 2013-03-06 | 2013-03-06 | Line tool for blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203093516U (en) |
-
2013
- 2013-03-06 CN CN2013201018304U patent/CN203093516U/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 | ||
| CU01 | Correction of utility model patent |
Correction item: Inventor Correct: delete False: Inventor 3 Number: 31 Page: The title page Volume: 29 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Inventor Correct: delete False: Inventor 3 Number: 31 Volume: 29 |
|
| ERR | Gazette correction |
Free format text: CORRECT: INVENTOR; FROM: INVENTOR 3 TO: DELETE |
|
| RECT | Rectification | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20140306 |