CN200974408Y - Blackboard - Google Patents
Blackboard Download PDFInfo
- Publication number
- CN200974408Y CN200974408Y CN 200620154227 CN200620154227U CN200974408Y CN 200974408 Y CN200974408 Y CN 200974408Y CN 200620154227 CN200620154227 CN 200620154227 CN 200620154227 U CN200620154227 U CN 200620154227U CN 200974408 Y CN200974408 Y CN 200974408Y
- Authority
- CN
- China
- Prior art keywords
- bar line
- blackboard
- line
- main body
- vertical bar
- 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 discloses a blackboard, which includes a main blackboard body. The blackboard is characterized in that a guide device is arranged at the position of each of four sides of the blackboard. A horizontal bar line is arranged between two guide devices in vertical direction; the bar line can stop at any position; a lead vertical bar line is arranged between the two guide devices horizontally; the lead vertical bar line can stop at any position. The utility model has advantages of being convenient and practical, which can perform the works of table and other straight line perfectly without assistance of ruler.
Description
Technical field
The utility model relates to blackboard, is the improvement technology of blackboard specifically.
Background technology
At present, the blackboard of hanging in the classroom, when the teacher strikes flat line or vertical straight line thereon, often need can finish the line operation by means of ruler or very big wooden set square, do the trouble completely that seems like this, sometimes also can straight line be drawn partially, particularly when drawing form, influence bigger because putting not positive ruler.
Summary of the invention
The purpose of this utility model provides a kind of convenient and practical, the blackboard that also can not finish form and other straight line line work by means of ruler well.
The purpose of this utility model is achieved through the following technical solutions.
A kind of blackboard, comprise the blackboard main body, it is characterized in that: four lateral location places of described blackboard main body respectively are provided with a guider, be provided with a horizon bar line between two guiders of vertical direction, the horizon bar line can stop at an arbitrary position, be provided with a vertical bar line between two guiders of horizontal direction, vertical bar line can stop at an arbitrary position.
Described guider is equipped with scale along four side edge of blackboard main body.
Four sides of described blackboard main body are provided with housing, and guider is installed on the housing.
Described guider comprises the leading line on the housing of four sides that are fixed on the blackboard main body, and horizon bar line and vertical bar line correspondingly are installed on the leading line, and horizon bar line and vertical bar line are provided with and are used for the anti-skid structure that the optional position all can stop.
The guide pad that described guider is included in gathering sill on the housing of four sides of blackboard main body, can slides and all can stop in the optional position again at gathering sill, horizon bar line and vertical bar line correspondingly are installed on the guide pad.
Described horizon bar line and vertical bar line length all can be regulated.
Because four lateral location places of blackboard main body respectively are provided with a guider, be provided with a horizon bar line between two guiders of vertical direction, the horizon bar line can stop at an arbitrary position, be provided with a vertical bar line between two guiders of horizontal direction, vertical bar line can stop at an arbitrary position, can draw form by mobile and horizontal bar line and vertical bar line like this.Because horizon bar line and vertical bar line length all can be regulated, when moving the guider of a side, can draw oblique line again, thereby need also can not finish the line operation by means of ruler or very big wooden set square.
Description of drawings
Fig. 1 is used for the structural representation of blackboard for the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model blackboard is described further.
As shown in Figure 1, comprise blackboard main body 1, four lateral location places of blackboard main body respectively are provided with a guider, be provided with a horizon bar line 3 between two guiders of vertical direction, horizon bar line 3 can stop at an arbitrary position, be provided with a vertical bar line 4 between two guiders of horizontal direction, vertical bar line 4 can stop at an arbitrary position, and horizon bar line 3 can also be regulated with the length of vertical bar line 4.For the ease of accurate line, be equipped with scale along four side edge of blackboard main body at guider.When four sides of blackboard main body 1 were provided with housing 2, guider was installed on the housing 2.
Guider comprises the leading line 51,52 on the housing of four sides that are fixed on the blackboard main body, horizon bar line 3 correspondingly is installed on leading line 51 and 52 with vertical bar line 4, and horizon bar line 3 is provided with vertical bar line 4 and is used for the anti-skid structure that the optional position all can stop.
The another kind of embodiment of guider is the gathering sill on the housing of guider four sides being included in the blackboard main body, the guide pad that can slide and all can stop in the optional position again at gathering sill, and horizon bar line 3 correspondingly is installed on the guide pad with vertical bar line 4.
Claims (6)
1. blackboard, comprise the blackboard main body, it is characterized in that: four lateral location places of described blackboard main body respectively are provided with a guider, be provided with a horizon bar line between two guiders of vertical direction, the horizon bar line can stop at an arbitrary position, be provided with a vertical bar line between two guiders of horizontal direction, vertical bar line can stop at an arbitrary position.
2. blackboard according to claim 1 is characterized in that: described guider is equipped with scale along four side edge of blackboard main body.
3. blackboard according to claim 2 is characterized in that: four sides of described blackboard main body are provided with housing, and guider is installed on the housing.
4. blackboard according to claim 3, it is characterized in that: described guider comprises the leading line on the housing of four sides that are fixed on the blackboard main body, horizon bar line and vertical bar line correspondingly are installed on the leading line, and horizon bar line and vertical bar line are provided with and are used for the anti-skid structure that the optional position all can stop.
5. blackboard according to claim 3, it is characterized in that: the guide pad that described guider is included in gathering sill on the housing of four sides of blackboard main body, can slides and all can stop in the optional position again at gathering sill, horizon bar line and vertical bar line correspondingly are installed on the guide pad.
6. according to the described blackboard of the arbitrary claim of claim 1 to 5, it is characterized in that: described horizon bar line and vertical bar line length all can be regulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620154227 CN200974408Y (en) | 2006-12-01 | 2006-12-01 | Blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620154227 CN200974408Y (en) | 2006-12-01 | 2006-12-01 | Blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200974408Y true CN200974408Y (en) | 2007-11-14 |
Family
ID=38900701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620154227 Expired - Fee Related CN200974408Y (en) | 2006-12-01 | 2006-12-01 | Blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200974408Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108621653A (en) * | 2018-05-10 | 2018-10-09 | 何川 | A kind of mathematical education multifunctional assisting device |
-
2006
- 2006-12-01 CN CN 200620154227 patent/CN200974408Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108621653A (en) * | 2018-05-10 | 2018-10-09 | 何川 | A kind of mathematical education multifunctional assisting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |