CN202986548U - Multi-purpose blackboard eraser with built-in laser emitter - Google Patents
Multi-purpose blackboard eraser with built-in laser emitter Download PDFInfo
- Publication number
- CN202986548U CN202986548U CN 201220611448 CN201220611448U CN202986548U CN 202986548 U CN202986548 U CN 202986548U CN 201220611448 CN201220611448 CN 201220611448 CN 201220611448 U CN201220611448 U CN 201220611448U CN 202986548 U CN202986548 U CN 202986548U
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- box body
- built
- core
- laser
- 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
Links
- 238000012856 packing Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000007306 turnover Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a multi-purpose blackboard eraser with a built-in laser emitter. The multi-purpose blackboard eraser is provided with a cuboid box body, wherein an opening is formed at the lower end of the box body, a laser lamp and a laser lamp switch are arranged at one side of the box body, concave grooves are formed at two sides of the opening at the lower end of the box body, and protrusions at two sides of a blackboard eraser core are correspondingly inserted into the concave grooves of the box body and then put into the box body. The multi-purpose blackboard eraser with the built-in laser emitter brings convenience to teaching of teachers, the blackboard eraser core can be replaced anytime, cleanness and hygiene are achieved, waste is avoided, and great convenience is brought to blackboard cleaning work for people and teaching work of teachers.
Description
Technical field
The utility model relates to a kind of blackboard eraser for teaching, especially a kind of multiplex blackboard eraser of built-in generating laser.
Background technology
At present, not only need when teacher gives lessons to use blackboard eraser to clean blackboard, also need to show the student with laser pen with the knowledge point, so that the student concentrates on crucial points.But teacher uses instead when using this two kinds of realias back and forth, very inconvenience.In addition, after traditional blackboard eraser used distortion with sponge brush, general blackboard eraser just can not continue to have used, and causes the waste of article.
The utility model content
In order to overcome existing blackboard eraser inconvenient problem with use, the utility model provides a kind of multiplex blackboard eraser of built-in generating laser, the multiplex blackboard eraser of this built-in generating laser combines laser pen and blackboard eraser, not only facilitate teacher to impart knowledge to students, and the blackboard eraser core can be changed at any time, sanitation and hygiene avoid waste, and the teaching of cleaning blackboard and teacher to people all brings very large facility.
The technical scheme that its technical problem that solves the utility model adopts is: the multiplex blackboard eraser of this built-in generating laser comprises blackboard eraser core, laser lamp, switch, box body, this multiplex blackboard eraser is provided with the cuboid box body of a lower ending opening, one side of box body is provided with laser lamp and laser lamp switch, the both sides at box body lower ending opening place are provided with groove, and the projection of blackboard eraser core both sides is corresponding inserts the box body of packing into after the groove of box body.During use, teacher can control laser lamp by switch and carry out teaching, when the blackboard eraser core is damaged, blackboard eraser core turn-over is installed can be continued to use, and perhaps also the blackboard eraser core can be replaced with new use, thereby carry out the cleaning of blackboard.
The beneficial effects of the utility model are, the multiplex blackboard eraser of this built-in generating laser not only facilitates teacher to impart knowledge to students, and the blackboard eraser core can change at any time, and sanitation and hygiene avoid waste, and the teaching of cleaning blackboard and teacher to people all brings very large facility.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is structural principle schematic diagram of the present utility model.
In Fig. 1,1. blackboard eraser core, 2. laser lamp, 3. switch, 4. box body.
The specific embodiment
In Fig. 1, the multiplex blackboard eraser of this built-in generating laser comprises blackboard eraser core 1, laser lamp 2, switch 3, box body 4, this multiplex blackboard eraser is provided with the cuboid box body 4 of a lower ending opening, one side of box body 4 is provided with laser lamp 2 and laser lamp switch 3, the both sides at box body 4 lower ending opening places are provided with groove, and the projection of blackboard eraser core 1 both sides is corresponding inserts the box body 4 of packing into after the groove of box body 4.During use, teacher can control laser lamp 2 by switch 3 and carry out teaching, when blackboard eraser core 1 is damaged, blackboard eraser core 1 turn-over is installed can be continued to use, and perhaps also blackboard eraser core 1 can be replaced with new use, thereby carry out the cleaning of blackboard.
Claims (1)
1.
The multiplex blackboard eraser of built-in generating laser comprises blackboard eraser core (1), laser lamp (2), switch (3), box body (4); It is characterized in that: this multiplex blackboard eraser is provided with the cuboid box body (4) of a lower ending opening, one side of box body (4) is provided with laser lamp (2) and laser lamp switch (3), the both sides at box body (4) lower ending opening place are provided with groove, and the projection of blackboard eraser core (1) both sides is corresponding inserts the box body (4) of packing into after the groove of box body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611448 CN202986548U (en) | 2012-11-19 | 2012-11-19 | Multi-purpose blackboard eraser with built-in laser emitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611448 CN202986548U (en) | 2012-11-19 | 2012-11-19 | Multi-purpose blackboard eraser with built-in laser emitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202986548U true CN202986548U (en) | 2013-06-12 |
Family
ID=48557760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220611448 Expired - Fee Related CN202986548U (en) | 2012-11-19 | 2012-11-19 | Multi-purpose blackboard eraser with built-in laser emitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202986548U (en) |
-
2012
- 2012-11-19 CN CN 201220611448 patent/CN202986548U/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: 20130612 Termination date: 20131119 |