CN201989490U - Blackboard - Google Patents
Blackboard Download PDFInfo
- Publication number
- CN201989490U CN201989490U CN201120079446XU CN201120079446U CN201989490U CN 201989490 U CN201989490 U CN 201989490U CN 201120079446X U CN201120079446X U CN 201120079446XU CN 201120079446 U CN201120079446 U CN 201120079446U CN 201989490 U CN201989490 U CN 201989490U
- Authority
- CN
- China
- Prior art keywords
- add
- card face
- blackboard
- frame
- face
- 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. Frames are arranged at the periphery of a body, slide ways are correspondingly arranged at the inner side surfaces of the upper frame and the lower frame, an additional panel is arranged, sliding blocks are arranged at the upper end surface and the lower end surface of the additional panel and can be connected with the side ways in the frames, namely, the additional panel can be connected with the frames, and eraser cloth is arranged at the back surface of the additional panel. Compared with the prior art, the blackboard has the advantages that the writing area is enlarged, the blackboard is convenient and practical, the operation is simple, and the like.
Description
Technical field the utility model relates to a kind of teaching aid.
Background technology is well-known, and blackboard is an apparatus important in the teaching, and existing blackboard is a plate face substantially, in the teacher gives a lesson process, full if blackboard is write, then need the word on the blackboard cleaned and writing, so not only take the class period, and make troubles for student's study.
The summary of the invention the purpose of this utility model is to provide a kind of novel structure, increases write area, blackboard convenient and practical, simple to operate.
The utility model comprises plate face body, around body, be provided with frame, be provided with slideway in the inner surface correspondence of two frames up and down, other has an add-in card face, the width of described add-in card face is identical with body with height, its length equals half of plate face, both ends of the surface up and down at the add-in card face are provided with slide block, described slide block can be connected with the slideway in the frame, be that the add-in card face can be connected with frame, be provided with blackboard eraser cloth at the back side of add-in card face, the area of described blackboard eraser cloth is identical with the area of add-in card face, and blackboard eraser cloth closely contacts with body, and one side is provided with handle in the front of add-in card face.
The utility model in use, the add-in card face slides to the right side of body, the teacher writes in the left side, after these sidelights on are full, on the add-in card face, write, after the add-in card face is write and expired, the add-in card face is slided to the left side of body, the teacher writes on the right side of body, after these sidelights on are full, the add-in card face is slided to the right side, this moment, the add-in card face was wiped the word in left side, the teacher can write in the left side once more, and above-mentioned action can repeat.
The utility model compared with prior art has following advantage: novel structure, increase write area, convenient and practical, simple to operate.
Description of drawings Fig. 1 looks schematic diagram for master of the present utility model.
Fig. 2 is the schematic perspective view of body of the present utility model and frame.
Fig. 3 is the schematic top plan view of add-in card face of the present utility model.
The specific embodiment such as Fig. 1, Fig. 2 and shown in Figure 3, be provided with frame 2 around the body 1, be provided with slideway 3 in the inner surface correspondence of two frames up and down, other has an add-in card face 4, the width of described add-in card face is identical with body with height, its length equals half of plate face, both ends of the surface up and down at the add-in card face are provided with slide block 5, described slide block can be connected with the slideway in the frame, be that the add-in card face can be connected with frame, be provided with blackboard eraser cloth 6 at the back side of add-in card face, the area of described blackboard eraser cloth is identical with the area of add-in card face, and blackboard eraser cloth closely contacts with body, is provided with handle 7 in the front of add-in card face one side.
Claims (2)
1. blackboard, it is characterized in that: be provided with frame around the body, be provided with slideway in the inner surface correspondence of two frames up and down, other has an add-in card face, the width of described add-in card face and highly identical with body, its length equals half of plate face, both ends of the surface up and down at the add-in card face are provided with slide block, and described slide block can be connected with the slideway in the frame, and promptly the add-in card face can be connected with frame, be provided with blackboard eraser cloth at the back side of add-in card face, the area of described blackboard eraser cloth is identical with the area of add-in card face.
2. blackboard according to claim 1 is characterized in that: one side is provided with handle in the front of add-in card face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120079446XU CN201989490U (en) | 2011-03-22 | 2011-03-22 | Blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120079446XU CN201989490U (en) | 2011-03-22 | 2011-03-22 | Blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201989490U true CN201989490U (en) | 2011-09-28 |
Family
ID=44665989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120079446XU Expired - Fee Related CN201989490U (en) | 2011-03-22 | 2011-03-22 | Blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201989490U (en) |
-
2011
- 2011-03-22 CN CN201120079446XU patent/CN201989490U/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: 20110928 Termination date: 20120322 |