CN200974408Y - Blackboard - Google Patents

Blackboard Download PDF

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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
Application number
CN 200620154227
Other languages
Chinese (zh)
Inventor
杨颖娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 200620154227 priority Critical patent/CN200974408Y/en
Application granted granted Critical
Publication of CN200974408Y publication Critical patent/CN200974408Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

A kind of blackboard
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.
CN 200620154227 2006-12-01 2006-12-01 Blackboard Expired - Fee Related CN200974408Y (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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